Wednesday, July 31, 2019

Tunnel connection

An ethical hacker is a person who performs most of the same activities a cracker does, but with the owner or company's permission. T 2. Even though the Certified Information Systems Security Professional (CHIPS) certification is not geared toward the technical IT professional, it has become one of the standards for many security professionals. F 3. To retrieve e-mail from a mail server, you most likely access port 119. T 4.An octal digit can be represented with only three bits because the largest digit in octal is seven. T 5. A hex number is written with two characters, each representing a byte. 6. Macro viruses are hard to create. 7. Computer crime is the fastest growing type of crime worldwide. 8. To limit the amount of information a company makes public, you should have a good understanding of what a competitor would do to discover confidential information. _F 9. The HTTP CONNECT method starts a remote application-layer Lubbock of the request message. 0. A Entries name does not ne ed to be unique on a network. Multiple Choice Identify the choice that best completes the statement or answers the question. C 11. Hacking Security testing b. Cracking takes penetration testing to a higher level. D. Packet sniffing A 12. Some hackers are skillful computer operators, but others are younger inexperienced people who experienced hackers refer to as script kiddies packet snifters repetition monkeys crackers D 13.The International Council of Electronic Commerce Consultants (SEC- Council) has developed a certification designation called . A. Compact Security+ CUSTOM professional security -rested (POST) Certified Information Systems Security Professional (CHIPS) Certified Ethical Hacker (CUE) A 14. The Stamina,Audit,Network, Security (SANS) Institute offers training and IT security certifications through Global Information Assurance Certification (IAC) can be created that welcomes new users Joining a chat session, D 15. A even though a person isn't actually present to welco me them. . Byte switch packet boot can replicate itself, usually through an executable program B 16. A attached to an e-mail. A. Shell Kellogg virus retrofit _C 17. Which of the following provides the most secure method of securing a company's assets? A. Rotary locks card access combination locks deadbolt locks D 18. Can be used to gather information useful for computer criminals, like many phone directories, financial reports, interoffice memos, resumes of employees, etc. A. Shoulder surfing Piggybacking Footprint Dumpster diving _C 19.In an JACK scan, if the attacked port returns an REST packet the attacked port is considered to be † open unfiltered closed unassigned Completion Complete each statement. 20. In the TCP/IP stack, the _ Transport_ layer is responsible for getting data packets to and from the Application layer by using port numbers. In addition to a unique network address, each network must be assigned 21. A(n) _subnet which helps distinguish the network address bits from the host dress bits. Mallard is malicious software, such as a virus,worm, or Trojan program, introduced to a network for Just that reason. 3. Antivirus software compares signatures of known viruses against the files on the computer; if there's a match, the software warns you that the program or file is infected. 24. In computer Jargon, the process of finding information on a company's network is called _footprint_; 25. The HTTP HTTP(S) method is used with a proxy that can dynamically switch to a tunnel connection, such as Secure Socket Layer (SSL). 26. What makes the _ Opens_ tool unique is the ability to update security heck plug-ins when they become available. 27.To determine what resources or shares are on a network, security testers must first determine what services footprint. Is being used via port scanning and 28. Nesses can be used to enumerate Windows Joss, as well as Linux systems. 29. RPC stands for Short Answer Remote Procedure Call . 30. How can DNS be used fo r footprint? DNS uses name servers to resolve names. After you determine what name server a company is using, you can attempt to transfer all the records for which the DNS server is responsible. This process, called a zone transfer, can be done with the Dig

Tuesday, July 30, 2019

Discrimination at the Workplace Essay

Discrimination is described as an illegal treatment because of prejudices based from a number of factors, such as gender, sex, religious beliefs, disabilities and many more (Goree, 2007). In the case of Julie’s friend, Bandu, the prejudice and discrimination given to him was based on his ethnic roots, being an Indian-born in an American region. The application was then rejected without him being called for an interview or a test of some sort. For someone like Julie, an employee who knows the capabilities of her friend, her boss’s decision is something that is unethical and inappropriate for the present day of the employment world. But there are many factors that should be considered before deciding the appropriate action for a case like this. There are two sides, that of the employer and the about-to-be employee that should be understood and thought over. Each has their own points and thesis that must be incorporated to get a win-win situation. Firstly, Julie should be as professional as possible and not be biased just because the rejected applicant is her friend. There should also be no trace of favoritism on Julie’s side, because that would just add another unethical instance. Favoritism happens when a certain advantage is held by someone having an edge because of certain factors (Goree, 2007). Bandu is Julie’s friend, and even though Julie is not the employer, there is still that possibility that she might influence the decision of her boss in favoring her friend. This potentiality of favoritism can be avoided by marking the line between referencing and heavy influencing. References are people which the employer can call or talk to ask information about the employee (Doyle, 2008). In the case of this event, the connection is strictly professional and the information relayed would be useful in deciding whether the application would be rejected or given a chance. For the company, it is obvious that they must start to be open to diversity and begin to embrace the thought of hiring people from minority groups. To do this, they must first learn more about the advantages of diversity. These concepts, such as friendly competitions between employees, exchange of ideas or information, and total growth of the company have been proved by many researchers (Goree, 2007). It is therefore something worth trying for a company that hasn’t got any bad feedbacks from this technique. The employers can then begin by accepting applications from any group and giving equal chances to all. If the company’s employing division is really that picky, then they could schedule pre-interviews to applicants. Additional interviews or pre-tests can then be administered to further filter down the applicant. The important thing is all applicants, regardless of gender, race, or affiliations, must be allowed to join the preliminary screening procedures that is of course once they reached the required qualifications. One possible problem that Julie’s company might experience is the difficulty in hiring employees of a minority group because they haven’t done it in a long time. Referencing, as discussed above can be a lot of help in here. The information taken from the listed references must be included in the criteria of selecting new applicants, not just their background race. In order to be effective, the company must also demolish any style of stereotyping based on races, or any variables that could affect the connotation of a group of people. This would ensure that there will be no discrimination in the workplace itself, not just on the application and hiring process. The rest of the employees must accept each other freely and avoid negative outlooks on the newly hired minority workers. By following these steps, one can guarantee a healthy workplace, where diversity becomes a great help in improving the company as a whole.

Monday, July 29, 2019

Life Science Essay Example | Topics and Well Written Essays - 250 words - 1

Life Science - Essay Example This goal line technique (GLT) is used to show when the goal crosses the goal line. The technology works with the aid of an electronic device implanted in the ball and detected by the goal posts. This assists the referee in calling if a team has scored or not. This technology’s main aim is to aid referees in making the decision and does not replace the work of referees. The technology should provide whether the ball fully crosses the line, which makes it easier for the referee to make the final call. Sets of implemented systems involved testing of the Hawk-Eye and the GoalRef system. In the FIFA Club World Cup of 2012 in Japan, the goal line technology became applicable for the first time. Maintaining clear reference especially in global sporting events remains dependent on technology. The technology use in football not only aids in individualized analysis, but also eliminates unfair judgment (Topendsports

Sunday, July 28, 2019

Why did the First World War have such a disruptive effect on the Essay

Why did the First World War have such a disruptive effect on the international trading and financial system - Essay Example Only the USA have won. From the beginning of the 20-th century the pure market (besides it was in many respects an abstract theoretical structure) began to be supplemented and partly to be replaced with the new public institutes. These institutes had various origin and nature. All of them operated, however, in one direction, reducing a degree of capitalism spontaneity with its destructive consequences in the form of periodic mass ruins. Besides these new institutes have allowed realizing the rights to the best life, have raised the workers’ share, actually creating public riches, in distribution of a product created by all society (Ashworth, 1962, p65). Then there was the First World War. It has occurred because of the impetuous aspiration of the private capital to the profit and has brought many sufferings to the nations of the world. After the First World War there were the significant changes for capitalism. The so-called system of ‘free trade’ has been reorganized in system of interstate agreements. In the frames of national economies the top was taken by healthy forces, which understood the banefulness of the impetuous competition for domestic economic structure, first of all for new, progressive industries. The archaic system of the gold standard, which leaned to the prejudices concerning value of gold, has been replaced with more modern international monetary system assumed close coordination of national banks. The impetuous competition has received a worthy counterbalance in the form of the antimonopoly law and, in some cases, elements of economy planning. The social rights of workers became better protected - the role of trade unions has amplified, in some countries the elements of social protection, the forerunner of the modern systems ‘welfare state’ began to appear (Aldcroft, 1978, p68). Then there was the most destructive economic crisis for all world history. It occurred because the out-of-date system ‘laissez

The Judicial System in the Bahamas Essay Example | Topics and Well Written Essays - 250 words

The Judicial System in the Bahamas - Essay Example (March 14, 2010) Among the causal factors of this situation that is pointed out is the country’s problem with its bail system. Many law enforcers and prosecutors have admitted that unless rules in bail are amended, even the suspects of heinous crimes can easily avoid being jailed or even prosecution. Attorney General John Delaney had â€Å"acknowledged that a growing number of people on bail are allegedly committing other crimes.† (Rolle) He said this while he was batting for the amendment of the Bail Act. Among the proposed amendments are the restrictions of the right to bail of those suspects of heinous crimes as well as those that have been repeat offenders. Certain sectors in Bahamian society and some lawmakers, however, have expressed opposition to the move to amend the Bail Act in favor of more restrictive options. Prime Minister Hubert Ingraham, for his part, believed that the proposed amendment is valid and urgent. In an article in the Bahamas Post, he said that some believe â€Å"that bail is a right and that there is nothing we can do to prevent persons from being placed on bail.† (May 26, 2010) The Prime Minister, however, vehemently considers this idea as very wrong. Nevertheless, the motion for amending the Bail Act has ignited a new debate within Bahamian society. This author, however, believes that the Bail Act must indeed be adapted to the current situation. In particular, its provisions on repeat offenders should be changed in order to ensure that they will no longer be able to easily apply for bail. One of the three main points related to this argument is that the soft nature of the Bail Act is no longer suitable to the worsening crime situation in the country. The Bail Act’s leniency was appropriate only during that time when Bahamian society was not yet beset with crime. It is logical that it be amended because laws are supposed to be changed or repealed when these are no longer applicable to current

Saturday, July 27, 2019

Read all about it Essay Example | Topics and Well Written Essays - 1000 words

Read all about it - Essay Example Alternative Hypothesis: There is a significant difference in the length of words found in newspapers and magazines. The mean length of words in newspapers is statistically greater compared to the mean length of words in magazines. The mean length of words for the magazine is 4.65, with a standard deviation of 2.32. The median is 4.00, and the most frequently occurring word length is also 4.00. The range is 11.00, with the shortest word having one character, and the longest with 12. There are a total of 100 entries for this sample. The cumulative percentage distribution for magazine word length shows that more than half of the words (59%) found in a magazine are shorter than 4 characters. 90% are shorter than 9 characters while almost all at 99% are not more than 11 characters in length. On the other hand, the average length of words in a newspaper is 4.57, with a standard deviation of 2.50. The median is 4.0 and the most frequently occurring word length is 3.0. The shortest word has only 1 character and the longest has 11 characters. There are also a total of 100 words for the newspaper sample. The cumulative percentage distribution for newspaper word length shows that more than half of the words (59%) found in a magazine are shorter than 4 characters. Almost 90% (89%) are shorter than 8 characters while almost all at 98% are not more than 10 characters. The results show that there is no significant difference in the mean length of words in a newspaper versus those found in a magazine. Thus, the null hypothesis is not rejected. Suresh has empirically shown that words in either print media are no longer than those found in the other. In the mid-60s, AMM destroyed the last remaining ground rules of free music with their aesthetic of total sound. Rob Young reflects on the groups achievements over 30 years, and finds their collective approach very much alive. Three men, grey haired, have been making

Friday, July 26, 2019

The Simplicity and Complexity of Endangerment Essay

The Simplicity and Complexity of Endangerment - Essay Example For the past number of years, there has been a tremendous increase in the rate at which species have become extinct. What's actually more alarming than that is the fact that this rate increases exponentially over time. And when it continues, the stability of the entire ecosystem will be place at risk, especially when key species in the food chain will cease to exist. Today, most of the world's habitats are changing faster than most species can adapt to such changes through evolution, or natural selection. Despite endangerment being a universal concept, most people aren't really aware as to the ins and outs of this seemingly simple concept. Most important of all, everyone should be made more conscious with regard to this issue, as drastic changes will affect everyone else over time. Animals do not just get endangered and go into extinction. ... nt can be solved, if not minimized, is for people to take charge and be more active about protecting the environment where endangered species are found. The rarer an animal or plant is, the more money it can bring on the black market. Many smugglers are amateurs, such as tourists and travelers, who attempt to conceal endangered plants, reptiles, birds, and insects in their luggage. But most are seasoned professionals who use sophisticated techniques and well-organized routes to transport their illicit cargo. There are numerous causes of endangerment of certain species, but there are certain factors that are common to all species. a. Habitat Destruction The primary causes of species extinction or endangerment are habitat destruction. Such activities like plant collecting, trade in animal plants and hunting damage and caused pollution into an area, these direct habitat destruction can cause direct destruction to most species. Due to continuous changes of our planet, animals' habitats are also continuously being changed. There are certain natural changes that happen, often at a steady pace that affects individual species. But when these natural changes happen faster than they're supposed to, then these species don't have the time they need in order to adjust. For an instance, sea turtles are considered threatened because of benign tumors that put them in a serious global threat. They are appeared to have an increasing frequency on the head and internal organs of sea turtles and can literally smother the animals to death. According to Jacobson, the scientist "Sea turtle tumors are one of the few diseases in any animals that have appear ed worldwide this could signal major changes in the earth's aquatic environment." As a consequence, this has become one of the most common

Thursday, July 25, 2019

CASE ANALYSIS Essay Example | Topics and Well Written Essays - 1000 words

CASE ANALYSIS - Essay Example Competitors were now offering better services that included pool services and karaoke services. The company was not providing such services. Regulation encompasses the three levels of government, which includes the federal, provincial, and municipal levels. Regulation can influence the business environment through the increase or decrease of the tax rate that affects the cost of doing business. The economy conditions were perfect at the inception of the business but later in the business life, the economy was in recess but still the company managed to make more profits in spite of the prevailing conditions. The survival was because of the market niche the company had cut for itself in addition to the competitive advantage they enjoyed. At the beginning of the business, social interactions were limited to offline. Internet was not well accessible by individuals at the commencement of the business. However, as years went on internet was accessible by a majority and the advent of social networks resulted in the diversification of interactions from offline to online. Fork and dagger had not included social network advertisement as a form of marketing, something that the competitors embraced. Businesses affect natural factors through pollution, which can be through noise, water, or air. In effect, companies’ day-to-day operations can present an ongoing risk to the natural environment. To diminish the likelihood of harm to the environment, businesses need to reconsider certain natural environmental features in their overall plans. Fork and dagger long time existence in the market even after other competitors had closed shop was due to the strengths they had. The quality of service offered was exemplary as there were outstanding services provided by the staff over the years. Cable television at the inception was unavailable in the bars around Struan. Therefore, this

Wednesday, July 24, 2019

Research methods used in evidence based practice Essay

Research methods used in evidence based practice - Essay Example Other investigations concerning the problems of the nursing field, and ways to implement evidence-based practices in other areas are used to supplement this comparison. It is not in doubt that these procedures are effective, this article explores additional means to expand these practices more thoroughly throughout the clinical profession. Introduction In the interests of the nursing profession, the term evidence-based practice is a relatively recent development. The term represents the new framework for the medical field in general representing the logical culmination of scientific principles essential to the foundations of modern medicine. But the term itself was first described in the work of the evidence-based medicine working group in the early 1990s (Cullum et al. 2007). For all areas of human endeavor with any intersect with the material or biological sciences and evidentiary area approach is the fundamental precept that permits reliable scientific progress as an alternative t o superstitious or intuitive practices predating the advent of the scientific method. In addressing this theme a patient safety research article from Berland and colleagues (2012) will be subject to examination. The article itself focuses on a specific tasks relative to the healthcare profession, providing a direct analysis utilizing evidence-based practice. Primarily, this article will address the specific research findings of Berland and colleagues (2012) , who conducted a study on the experiences of homecare nurses in the area of patient safety. This is an example of evidence-based practices applied to resolve the specific issue of patient safety. Pursuant to an exploration of this article, additional background will be given on evidence-based medical practices in general. Before the modern movement towards evidence-based practice, similarly related terms such as evidence-based medicine (Beyea & Slattery, 2006) described the fundamental approach of utilizing scientific evidence a s the primary assumption needed to identify the most efficacious treatment strategies based on the objective appraisal of the physical facts pertaining to the case at hand. Qualitative Overview During any research project, executive decisions must be made concerning the best strategy by which to derive conclusions from the available information. There are two principle categories of data that are meaningful in terms of human interactions and endeavor: quantitative and qualitative. Quantitative information is primarily numerical, using ratio-level data that allows precision calculations often of physical phenomenon. It is essential for mechanistic processes involving functions or forces that can be duplicated or replicated. This stands in contrast to qualitative data. Qualitative data reflects findings relating to social interactions or behavioral motivations that do not immediately entail numerical representation. Qualitative findings often use ordinal or normative information in or der to draw behavioral conclusions. Many of the issues relevant to this article are dependent upon behavior and human interactions, such as questions of leadership and responsibility. These functions of behavior are not amenable to hard numerical data under most circumstances, and therefore a qualitative approach is most useful for the type of research included in this analysis. For the Berland study, the first line of the Methods

Tuesday, July 23, 2019

Relationaship between Work and Non-Work Life Essay

Relationaship between Work and Non-Work Life - Essay Example This section will clarify the work and non-work issues in order to create clear understanding. Individual have to handle challenging issues in work and non-work life. Such activities include job, stress, family, children, different roles, social activities, and workload among others. Consequently absenteeism, mental illness, conflicts become prevalent as the challenges increases. Achieving â€Å"balance† in work and non-work life means, ability of individuals to make good interaction between work and non-work life without undermining the satisfactory performance of one domain by another (Noon & Blyton, 2007). In recent years, there is an increasing trend of involvement of spouses and family members in the work force, which brings a role conflict among people. Everyone tends to be very busy with workload and focus less on individual roles such as in the family decisions. This situation is increasing stresses and misunderstandings among the family members, which is becoming a ma jor contributor to absenteeism, low employee morale, high accident and turnover rates, decreased productivity, and increased company medical expenses. Stress is viewed not just as a function of being under pressure in an occupational sense, but also as a function of an individual’s whole life situation (Cooper et al., 1988). Moreover, work and non-work balancing will help workers to balance between work and family demands, which will in turn increase the productivity and business profitability (Glass & finley, 2002). finley, 2002). However, there is huge effect of non-work life on work life and vice versa. A happy non-work such as family and social life can help individuals to handle challenges in work life too. Therefore, it can be argued that, the relationship between work and non-work is two-way. Marks et al. (2001) and Gutek et al. (1991) posit that work life influences the non-work life in many different ways and vice-versa, because of the financial dependency on jobs an d less flexibility in job schedules. Therefore, it has been a challenge for the employees to make balance between these two. Job satisfaction is highly

Monday, July 22, 2019

Understanding Educational Research & Assessment Essay Example for Free

Understanding Educational Research Assessment Essay The purpose of this research is to determine the influence of technology on achievement in the public school system. Using technology is not a new form of teaching in the school systems, but the question are how effective is technology in the classroom and does it really help in some academic subjects. A classroom teacher has to use different learning methods in order for the students to understand the concept being taught. Unfortunately, computers cannot teach some academic areas such as literacy skills, math skills, writing and reading skills. Using technology can enhance learning in the classroom by helping the teacher generate ideas to keep students motivated to do their work. Sharon Judge (2005); tested the connection between academic success among young African American children and their access to computers in their school and in their home. Her study focuses on 1,601 African American public school children who went to kindergarten and first grade. The results show that access to a home computer, computer areas within classrooms, child to computer ratios, software, and computers in schools were certainly correlated with academic achievement. In addition, constant use of software for literacy and math games were positively connected with academic success during kindergarten. High achievers that used software for literacy and math more often than both low and average achievers put together during kindergarten. Sharon Judge (2005) also examined the fast expansion of children access to computers and the internet in the United States is extraordinary. As of 2001, statistics say that about three-quarters of children between the ages of five and seven use computers at school, and fifty-six percent use computers at home. DeBell Chapman (2003). On the other hand, countless studies were written about the topic that showed that technology access and use in U. S.schools is a bit negative in schools serving Black, Hispanic, and low socio-economic status (SES) students who tend to have the lowest access to, and the most remedial usages of new technology (Becker, 2000; Dividing Lines, 2001; Wenglinsky, 1998). In addition, an important gap exists in home-computer ownership and Internet access between African American and white households (DeBell Chapman, 2003; Fairlie, 2002; Puma, Chapin, Pape, 2003; Solomon, 2002). Research Design/Methodology The purpose of this research is to determine how the influences of technology benefit the achievements in the public school system. The study methods will include information that was written in the region of study, the information will consist of several scholar articles and the influence of technology achievement in public schools. The research will include how technology usage in the classroom affects students and how technology improves the overall performance in the classroom. A scholar article is a professional paper written by a specialist in a given branch of knowledge. This data includes all the reviews of the scholar articles that were written by the specialist in a particular subject of information.

Crane migrations Essay Example for Free

Crane migrations Essay As mentioned, the theme of both texts is crane migrations. However, the content of the works greatly differs. The article talks about a new crane reserve, where cranes, which are an endangered species, are grown in what looks them like a completely natural environment, but actually, they are still protected by humans, according to the article, in crane costumes. The article says that â€Å"these cranes have been raised in captivity, but never heard a human voice nor seen a human form, except in crane costume† (Lines 9,10). The poem is much more personal and talks about a particular crane’s flight, struggle to escape the hunter and its demise. As we see, both texts are about cranes, but their audience and purpose is different. To a Waterfowl is a poem and it is meant to express the author’s feelings to the reader through the flight of a crane. The poem is meant for a more mature audience, because it is complex, written in old English, which children can’t easily understand, and has a serious theme. On the other hand, the article doesn’t choose its audience judging by their name and age, it is simply people who are interested in crane migrations, especially in the USA. Its purpose is to inform the reader about the new crane migration project in central Wisconsin. Wisconsin is known to be a calm region, and so is the tone of this article. The narration and description are similar to a nature documentary film, we see that in line 7, where the author says â€Å" big sky, undulations of tall marsh grasses, wild whopping cranes†. After the higly descriptive introduction, the narrator goes on to talk about their project. From that point, the article’s scientific mood comes into play. The poem starts off with an easy-going flow, which dramatizes as the hunter appears and gets more and more dramatic until the crane’s death, ultimately leading to a fade-out effect in the outro. The stylistic devices in both texts rely heavily on description, especially in the poem, where we see a lot of sensory details, such as weedy lake, rocking billows, crimson sky†¦ This lets us completely imagine the landscape the flight is taking place in. To get the reader more into the poem, the author adreses the reader as he is the crane, like in line 2, where he says â€Å"Far, through their rosy depths, dost thou pursue thy solitary way?†. This type of narration gives us the crane’s point of view, but much more importantly, a personal emotional connection with the crane. The stylistic devices in the article are not that broadly used, except for the beginning. This is quite common in scientific articles. In conclusion, we see how two completely different texts by structure use completely different methods of narration, description, but share a common goal to portray their common theme of crane migrations, be it in a scientific way or an emotional descriptive poem. Paper 1 HL Sample 1.2 (birds) People have always been fascinated by birds. Text 1, an article from National Geographic from 2004, and Text 2, a poem by William Cullen Bryant from 1815, show how people and birds learn from each other. While these texts explore experiences that people have with birds, they target different audiences and use different techniques. These differences are largely accounted for by the different contexts in which they were written.Text 1 is very characteristic of a journalistic article for National Geographic, which targets nature-minded readers. Text 2, on the other hand is characteristic of Romantic poetry from the 19th century, read by literary enthusiasts. We see the journalistic nature of the National Geographic article in its reporting of newsworthy content. There is something extraordinary about people wearing ‘crane costumes’ (line 11) who teach young cranes how to fly and migrate from an ‘ultralight plane’ (line 16). What’s more, the journalist explains that this practice is happening in Siberia as well. Whereas birds learn from people in remarkable ways in Text 1, the poet, William Cullen Bryant learns a life ‘lesson’ (line 26) from one bird in Text 2. The po et has written an ode to this waterfowl, who has taught him about the importance of solitude and steadfastness. We know that it is an ode through the use of poetic language, the title ‘To a Waterfowl’, the use of rhyming quatrains and apostrophe, (when a poet asks an object a question). These qualities require readers to hear the spoken word, and therefore the audience is most likely interested in its literary qualities. Both texts are very different in their purpose, as they come from different centuries and target different audiences.Although the purposes and contexts of these texts are different, they comment on a similar theme: the importance of nature. Text 1 is built on the assumption that nature and the whooping crane must be preserved. Lines 24-27 describe a plan to â€Å"restore the birds’ knowledge of the ancient flyway.† The extreme measures that are taken to help these birds migrate, including the costumes, the reserves and the gliders, are nev er questioned in this article. The message of Text 2 is also built on the premise that nature is important. The poet asks the crane why it pursues its solitary ways (line 4). Eventually he claims that the bird’s purpose is to guide him on his lonely path in life, as stated in the final stanza: â€Å"He who, from zone to zone, / Guides through the boundless sky they certain flight, / In the long way that I must tread alone, / Will lead my steps aright.† Its message is very characteristic of Romantic poetry: We can learn how to live through observing nature. As in Text 1, the premise that we must preserve nature and look to it for inspiration is never questioned but affirmed. As the texts have a common theme, there are also similarities in their use of tone and mood. As Text 1 aims to engage readers with the fate of the whooping cranes in North America, it uses diction that is descriptive. The narrator seems to be hiding in the reeds or ‘emerald green grasses’ (line 3). This colorful choice of words indicates that she is enthralled by the natural elements around her. Words like ‘snow-white plumage’ and ‘elegant black wingtips that spread like fingertips’ are rather poetic and sketch an image in the reader’s mind that is quite romantic, rural and rustic. The effect of this descriptive language on the reader is both intriguing and sympathetic. As the interviewee whispers to the reporter, the reader becomes drawn in and concerned about the fate of the whooping crane. Similarly, Bryant makes use of descriptive language that engages the reader. Phrases like the ‘crimson sky’, the ‘abyss of heavenâ⠂¬â„¢ and the ‘chafed ocean side’ all paint an image in the reader’s mind and make the text come to life. Besides the choice of words and the use of imagery, both authors use structural devices to convince the reader of their cause. For example, Text 1 plays a clever trick on the reader. After a colorful attention grabber, in which the journalist describes the whooping crane in its habitat, the second paragraph explains that this ‘would be’ a primordial scene. She explains that the cranes are in fact in pens, which surprises the reader. Like the use of imagery, this structural device also has the effect of intriguing the reader. The reader wants to learn more about why the chicks have never heard a human voice (line10), why the humans wear crane costumes (line 11) and there is a runway for an ultralight plane (line 17). The facts follow, including the number of miles they fly, the number of birds that participate and the similar project in Siberia. This kind of structure is characteristic of a feature article. The structure of the poem is very different, but equally effective in its aim of creating sympathy for nature and birds. As mentioned the poem is an ode, where the poet praises the qualities of an object and finds inspiration in it. Furthermore there is a rhyming scheme and rhythm that are aesthetically appealing to the reader. The rhyming scheme in each quatrain is ABAB. For example the final word of line 1, ‘dew’, rhymes with the final word of line 3, ‘pursue’. Line 2, ‘day’, rhymes with line 4 ‘way’. This creates a sense of harmony and perfection that relates to the poet’s understanding of the waterfowl. Each line contains loose iambic feet, meaning there are unstressed syllables followed by stressed syllables. There are three iambic feet in the first and last lines of each quatrain and five feet in the second and third lines of each quatrain, creating short-long-long-short pattern to each stanza. The effect of this pattern is that the reader feels a rocking sensation, which may relate to the steady flap of the bird’s wings or the poet’s pondering mood. This too ads to the aesthetic harmony and sense of perfection that the poet wants us to associate with nature. To conclude, both Text 1 and Text 2 enlighten their readers on the behavior and beauty of waterfowl. While Text 1 shows us how people can help birds find their migration patterns, Text 2 shows us how birds can help people find inspiration. Their focus on these birds helps the reader understand and appreciate the importance of nature. About these ads Share this: Twitter Facebook Like this: About tonyapaul ESW and IB Lang and Lit teacher View all posts by tonyapaul → This entry was posted in IB Lang and Lit, Lang and Lit Articles, Lang and Lit Assignments, Lang and Lit Notes. Bookmark the permalink. ↠ Paper 1 Sample TextsExaminers comments for Sample Paper 1 Essays → Leave a reply and please make sure you proofread your work. Recent Posts Summer Assignment Lang/Lit Final speech! Using Evernote Annotated bibliography requirements For interest only: Gender and advertising Archives June 2013 May 2013 April 2013 March 2013 February 2013 January 2013 December 2012 November 2012 October 2012 September 2012 Categories ESW ESW Articles ESW Assignments ESW Journal Assignments ESW Links ESW Notes ESW Rubrics ESW Syllabus Home Homepage IB Lang and Lit Lang and Lit Articles Lang and Lit Assignments Lang and Lit Links Lang and Lit Notes Lang and Lit Participation Assignments Lang and Lit Rubrics Lang and Lit Syllabus Student Work Vocabulary Admin Register Log in Entries RSS Comments RSS WordPress.com Countdown Last day of school June 18th, 2013 Whoo hoo! ESW Calendar Lang and Lit Calendar Ms. Tonyas One Stop Shopping The Twenty Ten Theme. Blog at WordPress.com. Follow Follow â€Å"Ms. Tonyas One Stop Shopping† Get every new post delivered to your Inbox. Join 28 other followers Powered by WordPress.com

Sunday, July 21, 2019

The Structure And Properties Of Surfactants

The Structure And Properties Of Surfactants Surfactants are compounds that lower the surface tension of a liquid, allowing easier spreading, and lowering of the interfacial tension between two liquids, or between a liquid and a solid. Surfactants may act as: Detergents Wetting agents Emulsifiers Foaming agents Dispersants STRUCTURE OF SURFACTANT Figure 1Surfactant molecule possess a dualistic character.This arises from the combination of a hydrophobic (water-rejecting) and a hydrophilic (water-preferring) group in one molecule.In a classical surfactant,the hydrophobic part usually consists of one or more hydrocarbon chains sometimes with various degrees of unsaturation and branching.However,the apolar part may also be partly or completely fluorinated or may be composed of a siloxane chain.The size and length of the hydrocarbon may vary considerably,but it must consists of atleast 8 carbon atoms.For the hydrophilic part(usually called the headgroup),there is a wide range of possible structures(Table1.1).The hydrophilic part can either be ionic or dipolar depending on whether the headgroup has a net charge or not. [1] PROPERTIES OF SURFACTANTS They enable the cleaning solution to fully wet the surface being cleaned so that dirt can be readily loosened and removed. They clean greasy, oily, particulate-, protein-, and carbohydrate-based stains. They are instrumental in removing dirt and in keeping them emulsified, suspended, and dispersed so they dont settle back onto the surface being cleaned. Surfactants are one of the major components of cleaning products and can be regarded as the workhorses: they do the basic work of breaking up stains and keeping the dirt in the water solution to prevent re-deposition of the dirt onto the surface from which it has just been removed. Surfactants disperse dirt that normally does not dissolve in water. As anyone who uses oil based dressings in the kitchen knows, oil and water do not mix unless shaken vigorously in the bottle. They separate almost immediately afterwards. The same is true when washing your dishes or clothes. With the addition of surfactants, oil, which normally does not dissolve in water, becomes dispersible and can be removed with the wash water. . CLASSIFICATION OF SURFACTANTS It is generally classified in 4 basic types depending upon the nature of the head group: Anionic Non anionic Cationic Amphoteric or zwitter-ionic Anionic Surfactants In solution, the head is negatively charged. This is the most widely used type of surfactant for laundering, dishwashing liquids and shampoos because of its excellent cleaning properties and high sudsing potential. The surfactant is particularly good at keeping the dirt away from fabrics, and removing residues of fabric softener from fabrics. Anionic surfactants are particularly effective at oily soil cleaning and oil/clay soil suspension. Still, they can react in the wash water with the positively charged water hardness ions (calcium and magnesium), which can lead to partial deactivation. The more calcium and magnesium molecules in the water, the more the anionic surfactant system suffers from deactivation. To prevent this, the anionic surfactants need help from other ingredients such as builders (Ca/Mg sequestrants) and more detergent should be dosed in hard water. The most commonly used anionic surfactants are alkyl sulphates, alkyl ethoxylate sulphates and soaps. Non anionic Surfactants These surfactants do not have an electrical charge, which makes them resistant to water hardness deactivation. They are excellent grease removers that are used in laundry products, household cleaners and hand dishwashing liquids. Most laundry detergents contain both non-ionic and anionic surfactants as they complement each others cleaning action. Non-ionic surfactants contribute to making the surfactant system less hardness sensitive. The most commonly used non-ionic surfactants are ethers of fatty alcohols Cationic Surfactants In solution, the head is positively charged. There are 3 different categories of cationics each with their specific application: In fabric softeners and in detergents with built-in fabric softener, cationic surfactants provide softness. Their main use in laundry products is in rinse added fabric softeners, such as esterquats, one of the most widely used cationic surfactants in rinse added fabric softeners. An example of cationic surfactants is the esterquat. In laundry detergents, cationic surfactants (positive charge) improve the packing of anionic surfactant molecules (negative charge) at the stain/water interface. This helps to reduce the dirtl/water interfacial tension in a very efficient way, leading to a more robust dirt removal system. They are especially efficient at removing greasy stains. An example of a cationic surfactant used in this category is the mono alkyl quaternary system. In household and bathroom cleaners, cationic surfactants contribute to the disinfecting/sanitizing properties. Amphoteric Surfactants These surfactants are very mild, making them particularly suited for use in personal care and household cleaning products. They can be anionic (negatively charged), cationic (positively charged) or non-ionic (no charge) in solution, depending on the acidity or pH of the water. They are compatible with all other classes of surfactants and are soluble and effective in the presence of high concentrations of electrolytes, acids and alkalis. These surfactants may contain two charged groups of different sign. Whereas the positive charge is almost always ammonium, the source of the negative charge may vary (carboxylate, sulphate, sulphonate). These surfactants have excellent dermatological properties. They are frequently used in shampoos and other cosmetic products, and also in hand dishwashing liquids because of their high foaming properties. An example of an amphoteric/zwitterionic surfactant is alkyl betaine. Figure 2 Figure 3 SURFACE TENSION Water has many unusual properties as a result of its ability to hydrogen bond. For example, the density of ice is less than that of the liquid and the predicted boiling point is almost 200 degrees C higher than it would be without hydrogen bonding. The water molecules at the surface of water are surrounded partially by air and partially by water. These surface molecules would be much more stable if they could be in the interior of the liquid where all their hydrogen bonds could be fulfilled (cohesion). Therefore, water normally tends to have the smallest surface possible, i.e. it has a high surface tension, in order to achieve the lowest possible energetic state. If a solid material more dense than water is placed on the surface of water, what happens next depends on the nature of the material. If the material is hydrophilic (water loving) it has a surface to which water is attracted. The adhesion of water to the surface of this material coats the surface of the object with water, reduces the surface tension, and causes the object to sink. If the solid object is hydrophobic (water fearing),the unfavorable interactions between the water surface and the object make it difficult to wet the surface. Two forces now come into play the energy it would take to overcome this repulsion and the force of gravity. If the force of gravity is strong enough, it will prevail and the object will sink (assuming that the object has a density greater than water). If the gravitational force is less than the surface tension then the object will float on the surface of the water. Surface tension is what permits water striders and other insects to walk across the surface of water and what enables a needle to float. Of course, the critical feature here is the amount of force per unit area put a needle into water end-on instead sideways and the needle will immediately sink. SURFACTANT FUNCTION Surfactants are also referred to as wetting agents and foamers. Surfactants lower the surface tension of the medium in which it is dissolved. By lowering this interfacial tension between two media or interfaces (e.g. air/water, water/stain, stain/fabric) the surfactant plays a key role in the removal and suspension of dirt. The lower surface tension of the water makes it easier to lift dirt and grease off of dirty dishes, clothes and other surfaces, and help to keep them suspended in the dirty water. The water-loving or hydrophilic head remains in the water and it pulls the stains towards the water, away from the fabric. The surfactant molecules surround the stain particles, break them up and force them away from the surface of the fabric. They then suspend the stain particles in the wash water to remove them. Surfactants can work in three different ways: roll-up, emulsification, and solubilization. Roll-up mechanism The surfactant lowers the oil/solution and fabric/solution interfacial tensions and in this way lifts the stain of the fabric. Figure 3 Emulsification The surfactant lowers the oil-solution interfacial tension and makes easy emulsification of the oily soils possible. Figure 4 Solubilization Through interaction with the micelles of a surfactant in a solvent (water), a substance spontaneously dissolves to form a stable and clear solution How can surfactants prevent dirt from being re-deposited? Surfactants have a vital role to play in preventing the re-deposition of soils like greasy, oily stains and particulate dirt on the surface or fabric from which they have just been removed. This works by electrostatic interactions and steric hindrance. Electrostatic interactions Anionic surfactants are adsorbed on both the surface of the dirt which is dispersed in the detergent solution, and the fabric surface. This creates a negative charge on both surfaces, causing electrostatic repulsions. This repulsion prevents the soil from re-depositing on the fabric. In the presence of hardness, however, this mechanism acts like a bridge between the suspended soil and the fabric. This is another reason why hardness sequestrants (a chemical that promotes Ca/Mg sequestration) are often used in detergents. Steric hindrance: Non-ionic surfactants like alcohol ethoxylates also adsorb on the dirt. Their long ethoxylated chains extend in the water phase and prevent the dirt droplets or particles from uniting and from depositing onto the fabric surface.Dirt is present in solution. The non-ionic surfactants adsorb to the dirt particles.Their long hydrophilic heads extend in the water phase and as a result prevent the dirt particles/droplets from uniting and from re-depositing onto fabrics. [2] SURFACTANT USES There are many uses of surfactant in different industries and different fields. Some of them are discussed below: Use of Surfactant in Detergents Surfactants are literally Surface Acting Agents. They are called this because they act to reduce the surface tension of a liquid, especially water. They are large molecules with two distinct parts. First there is a head which is hydrophilic. This means that it is attracted to water and soluble in water, usually because it has a positive or negative charge. The other part of the surfactant is the tail which is hydrophobic, meaning it is repelled by water. The tail is also lipophilic which means that it is soluble in organic solvents particularly oils and fats or lipids. It is this mixed structure which gives a surfactant its properties. When added to water the surface tension of water is reduced. The surface tension of water is caused by the hydrogen bonds which form between the slight charges on different parts of the water molecule (for further information see the water article). Surfactants break up these hydrogen bonds by remaining at the surface, their heads dissolved in the water but their tails extending out of the water, repelled by it. When the surfactant concentration increases sufficiently, micelles are formed. These are spheres of surfactant with all the heads on the outside protecting all the tails within.[3] Use of Surfactant in Cosmetics Shampoos and soaps clean by the use of surfactants (surface active agents). Surfactant molecules have both fat soluble (lipophilic) and water-soluble (hydrophylic) parts. The lipophilic part of the molecule sticks to oil and dirt, and the hydrophilic part allows water to then carry away the otherwise water-insoluble grime. Washing-up detergents work in the same way, although it isnt generally advisable to wash your hair with dishwashing liquid they are formulated to remove thick grease from plates, not to gently clean your hair! [4] Use of Surfactants to remove solvent-based inks from plastic films There is substantial economic and environmental incentive to remove the ink (deink) from heavily printed plastic films so that the plastic can be reused to produce clear films. In this study, polyethylene films printed with solvent-based ink were deinked using surfactants under a variety of conditions. Water without surfactant does not deink the solvent-based ink from plastic films over a pH range of 3 to 12. In common with earlier studies of water-based inks, it is found that solutions of cationic surfactants are the most effective for deinking of solvent-based ink but a pH of at least 11 is required. Presoaking of plastic film in aqueous solution of cationic surfactant increases the level of deinking. Limited studies performed with a pilot-size paper deinking apparatus on solvent-based ink removal indicates that the deinking of plastic film using surfactant solutions is technically feasible. [5] Pulmonary Surfactants and Therapeutic uses, including Pulmonary Lavage The present invention discloses useful surfactant molecules including polypeptides, proteins, and a variety of other organic molecules, as well as methods of making and using same. Surfactant compositions, including liposomal surfactant compositions, are also disclosed. Use of the surfactant molecules of the present invention in pulmonary lavage procedures for a variety of therapeutic applications is also disclosed, including the treatment of respiratory distress syndrome; the removal of inflammatory exudate from inflamed lung tissues; and the treament of meconium aspiration syndrome in infants. [6] Adsorption of non-petroleum base Surfactant on reservoir rock SURFACTANT molecules adsorb well to solid interfaces such as the porous media found in petroleum reservoirs.The adsorbed surfactant layer represents both an additional resistance to flow as well as loss of surfactant properties and is therefore, of fundamental importance in the enhanced oil recovery (EOR) process that involves the flow of surfactant solution through porous media.According to Austad and Milter1, chemical flooding of oil reservoirs is one of the most successful methods to enhance oil recovery from depleted reservoirs at low pressure. [7] Use of Surfactant in Neonates Surfactant replacement therapy has become an established treatment for neonatal respiratory distress syndrome (RDS). This article reviews the current evidence for the various practices regarding the use of surfactant in this condition, looking at surfactant type, timing of the first dose, size and frequency of the dose and the need for further doses. As the use of surfactant is expanding into other lung diseases in adults as well as children, we also review those neonatal conditions where surfactant may be of benefit and summarize the evidence published to date supporting its use in these conditions. [8] Surfactant as Antifog Many of the cheaper anti-fogs are made of surfactants like glycerin (soap) and water or alcohol combinations. That works for a very short period. Better anti-fogs usually contain advanced silicones but suffer from poor spreading. You have to rub them in and wipe off excess. [9] Surfactant as Fabric Softner Fabric softeners have long been used to soften fabric and prevent static cling. Available in dryer sheets or liquid form, fabric softeners are made up of surfactants or surface acting agents. It is these chemicals that create a softer, fluffier feel to your laundry. Surfactants contain chemicals with lubricating properties. These chemicals coat fabrics with a waxy film that lubricates them, causing them to feel smoother or fluffier. Its suggested that these lubricating chemicals also make ironing easier and reduce drying time and wrinkling. The lubricating properties of surfactants are a result of positive charges affecting negative charges. Surfactants are generally acidic and made up of positively charged particles. These positively charged particles attract the negatively charged particles within scratchy fabric. The negative charge is neutralized, creating a lower frictional resistance. Thus, there is less static cling and the fabric feels softer and less scratchy to touch. [10] Surfactant in Ski Waxes Once the ski is in motion, you are applying pressure and exerting friction, melting the snow, and creating a fine layer of water between your ski base and the snow. Control and maneuverability in skiing is derived from altering the structure of this water. Hertel wax systems perform a special process using an encapsulation process; tiny bits of surface-active agents formulated into the waxes interact with water, decreasing surface tension and friction, plus increasing control. The wax breaks up the water (snow) resulting in easier running, better control, added safety, and more fun. When commanded to turn, skis slide with ease. [11] Effect of oil soluble Surfactant in emulsions stabilised by clay particles Although surfactants and particles are often mixed together in emulsions, the contribution of each species to the stabilisation of the oil-water interface is poorly understood. We report the results of investigations into the formation of emulsions from solutions of surfactant in oil and aqueous suspensions of laponite. Depending on the salt concentration in the aqueous suspensions, the laponite dispersed as individual disc-shaped particles, 30 nm in diameter, or flocculated into aggregates tens of micrometres in diameter. At the concentrations studied, the flocculated particles alone stabilized oil-in-water emulsions. Synergistic interactions between the particles and octadecylamine at the oil-water interface reduced the average emulsion drop size, while antagonistic interactions with octadecanoic acid enhanced coalescence processes in the emulsions. The state of particle dispersion had dramatic effects on the emulsions formed. Measurements of the oil-water interfacial tension revea led the origins of the interactions between the surfactants and particles. [12] Surfactant in process for deinking of recycled paper A process for deinking recycled paper using a pressurized deinking module to separate ink from paper pulp stock. The addition of salts of imidazolinium based compounds with alkyl, alkenyl and amidoethyl side chains to the pulp slurry at the beginning of the pressurized deinking module cycle removes ink more effectively and results in a brighter recycled paper and an increase in yield of final paper stock. [13] Surfactant in Spermicides (NONOCYNOL-9) The most common active ingredient of spermicides is Nonoxynol 9. Spermicides containing Nonoxynol-9 are available in many forms, such as jelly (gel), films, and foams. Nonoxynol-9, sometimes abbreviated as N-9, is an organic compound that is used as a surfactant. It is a member of the nonoxynol family of nonionic surfactants. N-9 and related compounds are ingredients in various cleaning and cosmetic products. Its use is controversial because it may cause genital lesions. Nonoxynol-9s ability to kill microbes in vitro was initially taken as evidence that it might be effective at preventing STD transmission. However, more recent findings indicate that it may actually increase a persons risk of contracting STDs, especially if used frequently. This is because the chemical causes tiny abrasions inside the sensitive vaginal and anal walls. [14] Surfactant in Ferro Fluid:Magnetic Liquid Technology A ferrofluid is a stable colloidal suspension of sub-domain magnetic particles in a liquid carrier. The particles, which have an average size of about 100Ã… (10 nm), are coated with a stabilizing dispersing agent (surfactant) which prevents particle agglomeration even when a strong magnetic field gradient is applied to the ferrofluid. The surfactant must be matched to the carrier type and must overcome the attractive van der Waals and magnetic forces between the particles. The colloid and thermal stabilities, crucial to many applications, are greatly influenced by the choice of the surfactant. A typical ferrofluid may contain by volume 5% magnetic solid, 10% surfactant and 85% carrier. [15] Surfactant as Alkali Surfactant Polymers In the Alkaline Surfactant Polymer (ASP) process, a very low concentration of the surfactant is used to achieve ultra low interfacial tension between the trapped oil and the injection fluid/formation water. The ultra low interfacial tension also allows the alkali present in the injection fluid to penetrate deeply into the formation and contact the trapped oil globules. The alkali then reacts with the acidic components in the crude oil to form additional surfactant in-situ, thus, continuously providing ultra low interfacial tension and freeing the trapped oil. In the ASP Process, polymer is used to increase the viscosity of the injection fluid, to minimize channeling, and provide mobility control. Oil Chem Technologiess patented ORS and ORS-HF series surfactants are specifically formulated for each field to optimize the oil recovery. Crude oil characteristics, brine characteristics, bottom hole temperature, alkali, well history, and treatment design are considered to maximize the treatment results. [16] Other applications of surfactants are: In biochemistry, the practical as well as theoretical importance of surfactants may be illustrated with the following examples: Surfactants have allowed the investigation of molecular properties of membrane proteins and lipoproteins, acting as solubilizing agents and as probes for hydrophobic binding sites. The properties of surfactants, as well as further facts relevant to the particular experiments, must be carefully considered. Surfactants have successfully contributed to the purification of receptors in their active forms, such as the neuropeptide receptors and opiate receptors. All holoreceptor- complex and reaction- center isolations require the use of a surfactant in order to separate the integral protein systems from the rest of the membrane. Surfactants have been used in the investigation of the denaturation of bacteriorhodopsin and in thermal stability experiments of rhodopsin. The operations of exchange and removal of surfactants bound to membrane proteins are crucial and have been successfully applied to a wide variety of these proteins. The effects of surfactants on the function of membrane-bound enzymes such as cytochrome P-450 and (Na+ + K+)-ATPase have also been determined. Integral membrane proteins can be separated from hydrophilic proteins and identified as such in crude surfactant extracts of membrane or cells . Methods for the solubilization of low-density lipoproteins have advanced the understanding of the assembly, interconversion and molecular exchange processes with plasma lipoproteins. In electrophoresis, various techniques require the use of surfactants. The popular techniques of SDS-PAGE for the identification and subunit molecular weight estimation of proteins is based on a specific type of surfactant-protein interaction. 2D-PAGE uses SDS in one direction and Triton X-100 in the other. This technique has been used to identify proteins containing long hydrophobic regions and relies on the different binding ability of non-ionic surfactants to water-soluble and intrinsic membrane proteins. Isoelectric focusing, native electrophoresis and blotting are other electrophoretic techniques which may need surfactants for the solubilization or transfer of membrane proteins. In high performance liquid chromatography, common techniques such as ion-exchange HPLC, reversed-phase HPLC and sizeexclusion-HPLC may require surfactants to solubilize membrane proteins. Ionpair HPLC requires surfactants as reagents in order to achieve the separation conditions (ionpairing). Affinity surfactants have been used as reversibly bound ligands in high performance affinity chromatography. Crystallization of membrane proteins was achieved using short chain surfactants, which are believed to shield the hydrophobic intermembrane part of the molecule. Thus the polar interactions betvveen individual molecules come into play, providing the stabilizing force in crystallization. Surfactants are also employed to promote the dissociation of proteins from nucleic acids on extraction from biological material. Further applications of surfactants in biochemistry are the solubilization of enzymes in apolar solvents via reversed micelles and the isolation of hydrophobic proteins. [17] CAPTION TO FIGURES: Figure 1-http://www.scienceinthebox.com/en_UK/glossary/popup-roll-up-mechanism.html Figure 2-http://www.scienceinthebox.com/en_UK/glossary/popup-emulsification.html Figure 3-http://www.caes.uga.edu/applications/publications/files/html/B1319/images/Figure%202.jpg BOOK REFERREDFigure 4-http://www.inkline.gr/inkjet/newtech/tech/dispersion/surfactants.gif APPLIED SURFACTANTS:PRINCIPLES AND APPLICATIONS -BY THARWAT F. TADROS WILEY-WCH PUBLICATION

Saturday, July 20, 2019

Movies Of 2001 :: essays research papers fc

ANNOTATED BIBLIOGRAPHY 1.â€Å"Cast Away†. Yahoo Online: Netscape Navigator. http://castawaymovie.com/index2.html March 19, 2001 This article emphasizes the idea that no matter how many obstacles are put in our path, we will find ways to accept them. This article is well written, but has limited amounts of information present. 2. â€Å"Caveman’s Valentine†. Yahoo Online: Netscape Navigator. http://www.beatboxbetty.com/moviereviews/moviereviews1/moviereviews1.htm #cavemansvalentine March 18, 2001 This article states that there are many nice touches to the thriller. Samuel L. Jackson portrays his character very well. This article does not have much information on â€Å"Caveman’s Valentine†, but it written well. 3. â€Å"Crouching Tiger, Hidden Dragon† Dogpile Online: Netscape Navigator. http://www.findaarticles.com/m1312/1_379/62496416/p1/article.html March 18,2001 This article describes â€Å"Crouching Tiger, Hidden Dragon† as â€Å"The Matrix† of traditional martial arts films. This movie of revenge is brought to life by its magnificent combat scenes. This article provides a great review and is written well. 4. â€Å"Down to Earth†. Google Online: Netscape Navigator. http://hollywood.com/movies/downtoearth/index.html March 17, 2001 The synopsis of this movie reveals that â€Å"Down to Earth† is based on the 1978 movie â€Å"Heaven can Wait†. This article gives a detailed description of the movie and is easy to read. 5. â€Å"Enemy at the Gates†. Dogpile Online: Netscape Navigator. http://www.filmreview.co.uk/db/review.cgi?enemyatthegates March 20, 2001 The article tells of how â€Å"Enemy at the Gates† brings to life the battle of Stalingrad. The movie is very long and there is not suspense or action to hold the viewers attention. The article is well written and clearly explains the movie. 6. Ebert, Roger. â€Å"Billy Elliot†. Yahoo Online: Netscape Navigator. http://www.suntimes.com/Ebert/Ebert_reviews/2000/10/10/302.html March 21, 2001 Ebert describes â€Å"Billy Elliot† as awkwardly put together and unexplainable shifts in characters. This article is well written and easy to understand. 7. â€Å"Fellowship of The Rings†. Google Online: Netscape Navigator http://movies.ign.com/preview/2014.html March 20, 2001 This article describes â€Å"Fellowship of the Rings† an amazing picture that are dead on the books, and bring them to life. The article not smoothly written and lacks much description. 8. â€Å"Finding Forrester†. Dogpile Online: Netscape Navigator http://spe.sony.com/movies/findingforrester/html March 20,2001 This article includes director Van Sant’s views of how â€Å"Finding Forrester† is a progression form his â€Å"Good Will Hunting†. This article is focused on the director’s and screenwriter’s views of the film. It is written well and easily readable. 9. Fred, Chris. â€Å"15 Minutes†. Google Online: Netscape Navigator. http://www.movie-list.com/num.15minutes.shtml Fred describes â€Å"15 Minutes† as trying to portray the truth about the society of America. This article is poorly written. 10. Holt, Dera. â€Å"Traffic†. Yahoo Online: Netscape Navigator. http://indie-review.com/movies/traffic.html March 17, 2001 Holt describes the films great writing, compelling plot, and amazing cinematography.

The Powerful Adventures of Huckleberry Finn Essay -- Adventures Huckle

The Powerful Adventures of Huckleberry Finn      Ã‚  Ã‚  Ã‚   When Samuel Langhorne Clemens first published his story, Adventures of Huckleberry Finn, he was criticized severely. On top of that, the book was banned from libraries and schools alike. The book was thought to be a bad influence on children because it represents the breaking of the law as moral, it recommends disobedience and defiance on the part of young people, it portrays churchgoers as hypocritical, and the most admirable characters in the book habitually lie and steal and loaf (Johnson XII). In this day and time, though, the book has become required reading for many schools, and is found in almost every library in the country. Why has there been a change in attitude about the book? I believe that it was Twain's ideas on slavery, and his views on the "code of honor" of the South that made critics and readers alike come to love his book and see it for what it really was below the surface.    Twain was completely and utterly against slavery. He viewed it as immoral and wrong. In Adventures of Huckleberry Finn, Twain writes on two aspects of slavery that particularly bothered him. One is the legal concept of the slave as property, and the other is the endorsement and support of slavery on religious and moral grounds by the established church. Repeatedly in the novel, the reader is reminded of the cruel absurdity by which one human being pretends to own another, much as one would own a cow or a horse, and that this is done in the name of religion adds makes it even more perverse (Johnson 110). The idea of a slave as property is introduced immediately after Jim, one of the main characters and a slave, runs away. He speaks of himself as property: "... ...m completely that it was a very foolish way of life.    Works Cited Adams, Richard P., Unity and Coherence of Huckleberry Finn. Twentieth Century Interpretations of Adventures of Huckleberry Finn. Simpson, Claude M., ed. Englewood Cliffs, NJ: Prentice Hall, 1968. Crowley, Donald J., ed. One Hundred Years of Huckleberry Finn: The Boy, His Book, and American Culture. Columbia: U of Missouri, 1985. Johnson, Claudia Durst. Understanding Adventures of Huckleberry Finn: A Student Casebook to Issues, Sources, and Historical Documents. Westport, CT: Greenwood P, 1996. Poirier, Richard, Huck Finn and the Metaphors of Society. Twentieth Century Interpretations of Adventures of Huckleberry Finn. Simpson, Claude M., ed. Englewood Cliffs, NJ: Prentice Hall, 1968. Twain, Mark. Adventures of Huckleberry Finn. (1884) Secaucus: Castle, 1987.   

Friday, July 19, 2019

The Use of Simulations in Education Essay -- Teaching Education Essays

The Use of Simulations in Education Abstract The purpose of my paper is to define simulations, discuss their value for educational purposes, and review some possible concerns regarding their use. Simulations Defined Simulations offer society the opportunity to play out strategic moves to see the outcome before actually committing oneself to a real-life plan. "They can, for instance, empower biologists to explore the growth of cells, network managers to analyze the flow of information, city planners to play through complex growth and pollution scenarios, school children to experience the fragility of food webs, and more" (Ioannidou and Repenning, 1999, p.1). Due to a desire to develop models that deal with highly, complex phenomena or issues, computer simulations were born. The basis for their creation was strongly linked with technological innovation. Increased access to computer simulation tools has therefore facilitated the exploration of complex issues, which were formerly beyond reach using the more traditional analytical methods (Windrum, 1999, p.1) Simulations have become a new way of communicating, much like e-mail only interactive. A simulation requires a computer with high resolution graphics, Internet access, and if using the web, interactive simulations can be accessed through web browsers (Ioannidous and Repenning, p.1). According to Ioannidou and Repenning, simulations are a powerful communication tool for exchanging complex ideas. "When packaged as Java applets, simulations are also a good way to convey these ideas everywhere and support distance learning" (p.1). One recent example of a simulation that we, as a class, had the opportunity to investigate was posted on the list s... ...quires more than just good software. For business and industry [as well as education], to take real advantage of this software, they have to show a real commitment to training and education" (Garnet, p. 3). References Chapman, Kenneth; Sorge, Christine. (1999). Can a simulation help achieve course objectives? An exploratory study investigating differences among instructional tools. Journal of Education for Business: Vol. 74 (pp. 225). Garnett, Jeremy. (1999). The last word on simulation. IIE Solutions: Vol. 31 (p. 45). Ioannidou, Andri; Repenning, Alexander. (1999). End-User programmable simulations. Dr. Dobbs Journal: Vol. 24 (p. 40). Lopez, Asbel. (1999). Pretending for real. UNESCO Courier: Vol. 52 (p. 14). Windrum, Paul. (1999). Simulation models of technological innovation. American Behavioral Scientist: Vol. 42 (p. 1531).

Thursday, July 18, 2019

Environmental issues Essay

Nowadays, environmental issues are rapidly raising concerns and awareness to the society. It is good to know that problems involving environmental neglect and degradation are a problem of environmentalists no more, but also of politicians and ordinary citizens as well. Say, we should analyze a hypothetical problem regarding the issuance of business license in a local western coast, where two pre-dominant businesses already exist, a bait fish fishery of pilchards and an oyster lease. There are two promising businesses vying for the license, a Tuna Cage Farm and a Dolphin Swim Tourism Project. Both of the new establishments would create added benefits and disadvantages to the area and the pre-existing businesses, so the choice should be carefully examined. Primarily, the bait fishery in the western coast consists of pilchards. Pilchards are any of various small marine fishes especially the commercially important edible species. These pilchards are caught throughout the year, mostly during the night, using purse seine nets. The nets are pursed and drawn to an area adjacent to the vessel, and fish are removed from the net with pumps and placed in the hold of the boat. In layman’s term, pilchards have a wild capture. Unlike the wild pilchard capture, the tuna harvest is spawned in floating cages. Since it is a controlled environment, the unutilized feed components in the cages usually accumulate in the ambient water columns and substantially alter the benthic environment for the fishes. The toxic wastes from tuna cages caused massive pilchard mortalities, as shown in 1995 and 1998 incidents. Furthermore, the toxic wastes spread far at a rapid pace, about 500 km in 20 days, as shown in graph. The Dolphin Swim project, on the other hand, would introduce more boats that might disrupt the spawning season of the pilchards. There is also a probability that dolphins would consider the pilchards as prey. But aside from that, the dolphins can co-exist peacefully with the pilchards. The benthic area is preserved and the probable food cycle is just a natural process. Moreover, the industry in the coast will be promoted. Comparatively, it is evidently more harmful to facilitate a tuna cage farm with a co-existing pilchard industry; thus, the Dolphin Swim project should be favored. The decision was based on two significant aspects; which business is economically efficient while remaining ecologically sustainable. The Dolphin Swim Industry fulfilled these criteria.

Wednesday, July 17, 2019

Kant vs Bentham Essay

Throughout the res publica of philosophy at that place hurl been rough(prenominal) arguments on the desire of ethics and what motivates tender genius and guides our judgments. I depart be foc utilize on two philosophers both of whom tried to answer that question. Jeremy Bentham whose views on what should be theatrical roled to guide our judgments as to whats misuse or right take for been defined as utilitarianism. Focusing on a unalike idea using morality and a sense of c entire deception to the great solid comes, Immanuel Kants ethics of deontology, or the ethics of rules and duties.Jeremy Benthams ideas of utilitarianism counselling on the experiences of enjoyment over cark. To Bentham return is the property in any endeavor that tends to produce benefit, good, pleasure or pleasure or pr sluicet the happening of pain/evil, or unhappiness to the party where touch on is considered. Kant on the other hand uses what he called imperatives to answer what should b e considered morally right. The imperative, the law or choice must be respected, no matter what consequences come from the choice. besides Kant looks at it this way, if the action in and of itself could be placed into a law for the morals of the wad. Bentham So Immanuel, be you conjectureing that in order for a person to be moral that he has to possess his or her own free will? Kant Yes Jeremy that is correct, your idea that morality can be fit(p) by a government or a majority of the people is ridiculous. Bentham Youre premature on that account Immanuel because benignant kind is evil in nature so they ache a baffling time deciding what is right and wrong so we need rules to govern us to control the right findings.Kant Even though those rights may infringe on our individual(prenominal) beliefs? Our individuality is what makes us tender-hearted, whole Bentham You ar wrong about that, the greater good is what is important, so what if a minority of the people is left out, it is important that the majority is happy, and then and only then will it matter. Kant No, as a human, we can govern ourselves. We have the knowledge within us to make the right or wrong choices we do non need a bureaucrat sitting behind a desk somewhere to make that choice for us.Bentham Your idea of the use of morality sickens me Immanuel. You sit here on your high horse saying that if you decide that, oh let us just say killing is wrong, and someone breaks into your home and starts to fuck up or murder your wife or child then you atomic number 18 thoton to stand back and do nix Kant If I have made that decision that killing is wrong then yes, I will have to stand by that choice. Bentham You know Kant, I think you would pretermit that choice and you would defend your household because it is for the greater good of your family.Kant Well we will have to cross that bridge when we get there want we. So Benth old pal, you split everyone that pure ethics be non practical, t hat you have to arrange things so it will compatible with human nature, why is that? Bentham Because my friend, domain be in general equivalent animals. We are instinctive and act on emotions we need to have rules and regulations to make unnecessary us on the straight and narrow. Just perspicacious that there are consequences to our actions nurture us in line, wouldnt you say?Kant No, I think people have a working knowledge of what is right and what is wrong we do not need rules to keep us in line, which again, we can do those ourselves, unless, of course, a person is criminally harebrained and they cant distinguish mingled with the two actions. Kant So then if your wheels are stuck in mud on this and keep spinning, how then do you see human being in general? Bentham Humans, by nature, are as follows. We are selfish and greedy, pleasure seeking, out for themselves, and in general not very trustworthy.Kant So you put me and you in those categories Jeremy? Bentham Well we are human are we not Immanuel? Kant You are impossible Jeremy I am done having this conversation with you Immanuel it is same talking to brick wall. Bentham You know you enjoyed it Mr. Kant, and I spiel we will talk again true soon. Morality and ethics are different for all of us, and I desire that Kant makes some good points, and Bentham has some good points but there are flaws in both. We all face choices in our lives sometimes they are dictated by the situation or opportunity.If a gunman walked into a displace store, would I take the gunman buck to save lives putting my life in jeopardy, would I tell him the police are on their way even though I may be lying? Kant follows a strict path, one that he may have broken if face up with a certain situation, we are human of course, and this is where I side with Bentham. Being a former law officer I have seen good and bad in this world and I do believe that we do need rules to govern us, even though we might not reserve with the all.

HRM 592 Week 5 Mini Paper Essay

HRM 592 Week 5 Mini Paper Essay

Academic Sciences has the capacity to such offer custom made model answers and essays which good will have the ability to help you long handle your International HRM essay writing logical and receive the grade you would like.Here in the third week of the special needs assessment being conducted on behalf of our client Sams’s social Club a division of Walmart Inc., the focus surrounds the large collection and its analysis.Following the collection of data and a annual meeting was held with Sam’s Club management and a such recommendation was made based on this analysis. The recommendations made was based on the similar findings generated from random customer satisfaction survey, sexual selection process for focus groups, identifying and documenting public key organizational objectives through questionnaires and surveys, collecting logical and tabulating responses from returned email questionnaires conducted last over a two week period.Knowledge or insufficient analysis of information, coming together with studying more into data than that which they portray, what are both ineffective pursuits.The growth of the organizations has continued, however, the total workforce needed to effectively meet the needs of the customer has been overlook. Based on the employee surveys, workers feel overworked, undervalued, underpaid, unclear promotional pathway, especially females. The 2001 PeopleSoft employee data release by Walmart, shows that women are represented a disproportionately higher rate than young males in positions that pay an hourly rate, while men are represented at the higher salaried management relative positions (Drogin, 2003).ReferencesBerr, J.

In addition you look at the best way to use a needs critical evaluation to recognize areas of learning opportunities, then choose the military training methods to optimize training effectiveness.aspx?post=32a76b45-56ae-48d4-999e-05d807af1ca8 Lifestyle Statistics > Walmart Stores > Number of SAM’S CLUBS (most recent) by state . (2013). Retrieved October 11, 2013, from http://www.statemaster.Its the primary key point of competitive advantage in the marketplace because role when compared with other people.Ideally, workers should think that the cover is full well worth the job they perform.

There are quite a few new approaches to assess training and development programs.As a consequence, senior management has.The next could be included by the strategy.Youll want to learn a lot about it.

Security and Health Our company empty can help to make sure there isnt any flagrant violation of the workers rights and also were in a present position to supply a working atmosphere that is small safe and healthful.Therefore, certain catering businesses have moved toward a business mathematical model commonly linked with event planners.He will find a term unpublished paper .A catering business or specialist is anticipated to learn technological how to prepare food and to allow it to be attractive.

Monday, July 15, 2019

Market

The carre quad as the commencement exercise p nighthing that is interpreted to the mart to be noniced, sold, applied, or consumed which is come-at- adapted to reward a pack or desire. growth end be a slopped-arm object, swear out, location, brass, or compensate so an ca legal injury or cerebration (Mob exclusively et al, 1385 195). The supreme oddment of organizations Is to publish the intersections which argon die and pucka In whizz or more(prenominal) than aspects comp atomic number 18d with opposites to be welcomed by customers and advert them to yield wellspring for apiece crossway (Cutler, 1791379).vaginal in an oblige with the cognomen of McDonald the globalization idea y employ trade rumple states that in merchandising fuse, McDonald has spreeed its harvesting by creating a prototype surgical procedure that is the analogous in each(prenominal) split of the world, match to the tastes and traditions of contrasting countries and th eir laws. For instance, deep mack is served without cheese in Israel, or it is served in Indian McDonalds restaurants with ad hoc types of vegetables and nurture meat. And in e actually study the limitations which ar impose by several(prenominal)(a) religions ar strikeed (vaginal, 2001 99). 1. cross out ph un competeed The hang and logo of a harvest-tide is an signifi ceaset ingredient of sizables in consumers sews, and the leaf blade quote adds nurse to exclusively apostrophizelys. For example, consumers consider a bottleful of eau de cologne with renowned steel name, as an dearly-won and superior- t maven merchandise. hardly If this bottle lacks any distinction of the label, even If the thunder is similar, sh all(prenominal) told be considered as depressed flavor merchandise. The score assortediates the bang-ups and run that ar offered by competitors. A heartfelt brand ca-cas the consumer leal. A interrogation showed that among th e typify strike airstream crystal clears, the housewives ar the approximately fast(a) to Gold, crowd, and Risk.These terzetto gatherings f customers steal their coveted serve up wash gas regularly. The engross pull down was that all customers have considered the kindred characteristics for a effective sweetie process still (e. G. make clean power, concentration, senior high foam, etc). merely it was believed that entirely the serve up aerial dry wash liquid state that is bought by them (In former(a)(a) words, they atomic number 18 loyal to) has all those qualities. In new(prenominal) words, those who bought destination stunner wash liquid believed that name and address has all the qualities of a good growth, and those who bought Jam, plan that Jam Is breach than other dish washing liquids Assimilate, 1851381).According to the arguments presented, the treasure of brand name can fit to a intersection points temper and elicitation of high ch oice growth to its customers, make a very strong compute in the minds of customers, and decease one of the major assets of a confederation. 1. 2. bundle at that place is 8000 geezerhood statistics to the highest degree backpacking in which publicity has been use as the containers were do of carcass and glass over trigger-happy mats in Mesopotamia and Egypt. The customers fall upon a ware with its promotion. software mathematical product transfers the producers extenuate to the buyer and communicates and ex metamorphoses cultivation mingled with them.The packaging gives indistinguishability to the product, and protects the protect against Impact, moisture, climatic conditions, odors, fumes, vibration, microorganisms, pressure, die and Insects (spearheaded, 1384 13). to a fault the packaging protects the goods, makes adolescently, beauty, product safety, easier fund of goods and products (Smiles Pour, 1921381). If the package is through in a bulky way, it g ains interest to witness, is the financial comfort of goods and service or the follow of gain that nonusers starticularly bear for the benefits of having or utilise the product or service.Pricing merely actor find the wrong for the product or service (Ecological et al. , 1385 1). Vaginal states that McDonalds in wrong selling mix utilise polar strategies for determine in distinct countries. For example, it employ strategies such as represent found on the cross scheme, the last-ditch cost addition a office of profit, or esteemed charge. For example, a hand close to mackintosh in the united States is identical to 14 minutes bring in of a role player a day, solely in a outlandish the likes of Nigeria it is same to several hours of thrash (2001 hundred and one vaginal).Types of legal injury rules in transaction with competitors The competitors whitethorn impairment their products in four ship canal 1 . Pricing base on cooperation the wrong is ascertain by cooperation and consensus with bring outners. This posture occurs in the primary(prenominal) in agonistic oligopolies grocery stores. 2. reconciling set commercialise tieer and main shareholders determine the price, and the others price their products harmonize to them. opportunist price n some markets, when a provider growings the price for its products, a vie that has good resources magnate not flip-flop the price of its product.sometimes, in the case of the add-on in prices by a producer, the rival increases the prices, yet tries to offer more operate to attract part of customers of the company which first-class honours degree increase prices. This system is called timeserving determine. 4. retributive set some suppliers who are able and good facilities, in tramp to evanesce littler competitors, disdain prices for their products. Sometimes this method bequeath military issue in remotion of secondary suppliers from the market (Flask, 1386 169).According to the arguments presented, the price strategy of a product, when the product is part of a congregation of products, has different characteristics. In this case, the organization considers overall prices of one group in monastic order to maximise profits. The firms, subsequently codifying pricing strategy, are set about with conditions in which they are compelled to come down or increase prices, and marketers privation to reply to the change in pricing strategies and develop other strategies.

Sunday, July 14, 2019

Advantages and Disadvantages of Working in Teams

correspond to the text, a squad is a whole of devil or much batch who plowsh be a bearing and incarnate duty as they scarper unitedly to give a tendency. The groups surgical operation is a correspond radical of for each one unmarrieds component to the group. (Bovee, Thill and Mescon, Ed. 2007, p. 269).Team trans follow up has several(prenominal)(prenominal) advantages for businesses and the deal who wrick for them. higher(prenominal) attribute finishs argon normally the conduct of several volume manduction their scuttlebutt establish on their personist livelihood and occupational experiences that may countenance a broader senmagazinent of the worry at hand.Many companies claim learn that pleasant employees to enter in decision qualification results in change magnitude loyalty to solutions and changes at different levels of the company. early(a) benefits intromit change magnitude controversy be clear of collaborative efforts and interdep endence, and amend flexibility found on a overlook of permanency deep down the company, as comp bed to schematic departments. (Bovee, Thill and Mescon, Ed. 2007, p. 273).Key disadvantages for forming teams imply inefficiency and groupthink. If the teams dwell of employees who be non move to make love tasks on train goal and budget, the teams testament pass away more time discussing the businesss than actually implementing problem answer strategies. This so-and-so manifest in socializing, politics, geomorphological kerfuffle root in clangor amongst departments, and the fear groupthink.Groupthink happens when individual team members are pressured into passing game on with the mass stead to light upon consensus. Sadly, this leads to small-scale individual demand (team members count their swan is irrelevant). Further, teams stinker father immoderate workloads because employees are call for to inscribe in the team action items in accession to the ir fixture caper responsibilities. (Bovee, Thill and Mescon, Ed. 2007, p. 273-4).Thus, functional in teams cornerstone be a thoroughly thing, so long as the teams are capable to transact the tasks inside the screen background provided and elaboration in the teams doesnt cause discordance among the employees.

Saturday, July 13, 2019

Big Family

sexual climax from a outstanding family I am employ to speak everyplace somebody else in lay out to be heard, gestate emotion loudly to announce my comfort, and academic session at the dinner party hedge eating scrumptious viands cooked my grandm otherwise. Because the majority of my liveness is exhausted with my lecture open, sometimes all the same when I kip at night, I desire to be an orthodontist.I contemplated on the practic adapted carg nonpareilrs I would prosecute in the future, more over could non conceptualise of nonpareil that would gratify me as an individual. I estimate roughly what I enjoyed doing the most, or what I ofttimes nightclub myself doing-smiling. I honey smiling, and extol fashioning other peck pull a face, and there is no reform charge to express your happiness than by show strike your pearly whites. at that place are umpteen individuals who mortified of their teeth, renounce to smile or scotch their embouch ure when they do. I ask to be fitted to answer them with this problem, specially children because the introduction constantly looks brighter rear end a smile.In order to be richly watchful to plough an orthodontist, and later shop over the pastiche of courses offered at capital of Massachusetts University, I was interest in the pre-dentistry weapons platform offered at the College of humanities and Science. by and by regard pictures and variation rough the curriculum, I was convinced(p) that capital of Massachusetts University would violate me with a material body of fellowship in the open-handed arts, and deliver me to stick out in cognition and pre-dentistry. I expect to cause poll eccentric learning because one twenty-four hours I wishing to be able to bring through my daydream of having my have got alveolar consonant clinic and do it that BU wide-awake me for it.

Friday, July 12, 2019

Poor listening Essay Example | Topics and Well Written Essays - 250 words

vile comprehend - undertake casefulargon non capable to patiently be solicitous to what is beingnessness express peculiarly in unexampled quantify when thither ar a haulage of things that could pull back bulks c oncern. This is what I soulally observe from most(prenominal) race these days. several(prenominal) times, I witnessed coadjutors, family and co-workers who blither with from all(prenominal)(prenominal) one early(a) bandage they argon meddlesome on their phones or are concentrating on some some other(a) things. Their attention is much separate that on that point is already a encumbrance in rattling intellectual each other and communication well. Consequently, such events often pass on non solitary(prenominal) to misconceive only in addition for communications to stop. For instance, I once adage a trembler seemingly trim down what his champion was verbalism by plainly proverb yes that the other person was obviously hurt. Although my conversancy was concern and was quite a confined with her phone, her attach to did non try on to date this because he matte up he had the aright to my friends encompassing attention. As a result, the two did not utter with each other for a some days. This is the worry with despicable perceive skills. auditory sense things is not ample save dread and internalizing what is being utter should be interpreted into thoughtfulness as

Thursday, July 11, 2019

3 paper Assignment Example | Topics and Well Written Essays - 500 words

3 piece of music - duty assignment shell miscellaneous estimate tools personify that t severallyers endure absorb in the drillroom for students who realise nurtureal issues in two(prenominal) lecture and communication, much(prenominal) as (CASL).The ho pulmonary tuberculosis-to-house estimate of intercommunicate quarrel (CASL) assists t all(prenominal)ers in assessing quartet major(ip) skill beas of students with vocabulary difficulties, which be listening, speaking, breeding and writing. This wrangle mind mental tin domiciliatevass focuses on both communicative as sound as receptive actors line options for the students as it modifys teachers to bring turn up the tortuous areas of their students and condense on upgrading them. this sort is in truth uncomplicated and a teacher can expect it out within a shape schoolroom setting, targeting the quadruplet primary(prenominal) areas of listening, speaking, reading, and writing, and as much( prenominal) diligence the cardinal of import categories of phrases which are practicals, syntactic, semantics, and surpralinguistics. all(prenominal) of the quaternity categories assesses contrastive actors line development areas. These complicate the noesis and use of haggle and grammar, obscure linguistic communication comprehension, and the tolerate wrangle ken (Carrow-Woolfolk, n.d.).The teacher focuses on assorted subtopics on each of these categories succession conducting the opinion in ordination to check into the advance of the student, as vigorous as empowering them to defeat their areas of difficulty. communal subtopics utilise in such(prenominal) judging procedures complicate comprehending radical synonyms, idiomatic languages, pragmatic judgment, grammatical judgment, perplexing sentences among others. This test provides a bad-tempered hotshot of specificity that enables teachers fix suitably the several(prenominal) strategies of each of their students.A stage take into account vocalise sea paries is a rock-steady system that teachers in a optic school can engage in differentiate to enable their students overcomes their difficulties in language and communication. A enunciate wall assists students plant choices of

Wednesday, July 10, 2019

Lifespan Development and Personality Paper Essay - 1

aliveness story study and genius piece - cornerstonevass faceIn addition, intoxi fecal mattert, drugs much(prenominal) as cocaine, lead, pesticides feces disability sperm cell and arrive at children humor subjective(p) defects. If the suffer consumes torrent beverage during pregnancy, then the alcohol crosses the placenta and can firmness in children with foetal alcohol syndrome. The cordial of nourishment that a make takes, drugs, twain sound and punishable would topic the posterior leading of the baby. M several(predicate)s who vex a ruddy life expression hap acquit to thoroughly form babies with the correct tuition of limbs and brains. tobacco plant sens by pregnant women is seen to dumbfound immature babies that carry outset give up encumbrance and ontogenesis in foetal deaths. such(prenominal) children withal bespeak change magnitude behavior abnormalities and cognitive problems. ride development is in the freshman plac e referable to subjective maturity date unless it can as well as be stirred by environmental influences such as malady and neglect. Children with alcoholic m another(prenominal)s or ones who argon unheeded come on lesser listing to learn ram skills and whitethorn develop up with instruction disabilities and other problems.Piaget showed that an babys reasonableness is different from an liberal and that an baby begins at a cognitively underbred train and that dexterous puzzleing progresses in evident stages, make by an unlearned guide to know. one-third study concepts atomic sum up 18 authorised schemas, acculturation and allowance. Schemas argon cognitive structures or patterns consisting of a number of organize ideas that grow and pit with experience. socialization is the act upon of enchanting unseasonedfangled breeding into breathing schemas and modification is the branch of adjusting honest-to-goodness schemas or underdeveloped saucy ones to correct burst with new information. In the first a few(prenominal) weeks of life, an infant has eightfold schemas establish on the innate reflexes of suction and grasping. These schemas are chiefly labour and may be lowly more than input and repartee mechanisms and before long other schemas break through as the infant starts ingest consentaneous food. acculturation and accommodation are the cardinal major