Diagnostic Essay

Of all the things high school students complain about, being sleep deprived and tired ranks first as most problematic. The issue isn't that kids simply choose not to get enough sleep; it is that the majority genuinely cannot. Students are constantly being badgered by parents, doctors and school faculty to get at least eight hours of sleep, but with school starting as early as 7:20, that makes getting a decent amount of sleep an almost impossible task.Though there are numerous other reasons as to why students are lacking leap, the start time of school is ultimately the main contributor and leads to many severely negative results. A policy causing high schools to start at 8:30 instead would greatly improve the number of better rested students. Firstly, there are a plethora of other variables preventing students from adequate sleep. Such examples include an excruciating amount of homework, extra-curricular activities and striving to maintain the Triangle Of Health. These additional issu es make It even more difficult to get enough sleep.The large amount of homework sometimes has students staying up all hours of the night. Some might argue that if students manage their time efficiently they should be able to go to sleep at a reasonable hour, but even the most organized, intelligent students have trouble completing their huge quantity of homework by the time recommended getting to bed. Next, students are greatly encouraged to participate in after school activities, however, enough sleep is practically impossible to attain when most activities run until five and time is lost to complete work.Finally, students are educated in health class to maintain the Triangle of Health, a diagram representing three crucial elements to being an overall healthy person – physical, mental, and social health. So, students are trying to maintain each form of health by attempting to make time for friends and family, hobbies, at least a half hour of exercise, and stimulation of the mind through education. Overall, when students have these other things to worry about, the early start of school is really an issue when endeavoring to get enough sleep.Secondly, students' lack of sleep affects their overall performance in school, academically and physically. Inadequate sleep in adolescents, defined as less than nine hours per night, is a known problem and a major public health concern. Sleep is food for the brain. Without the nourishment of enough sleep one can look awful, feel moody, and perform badly. While it's true that delaying school would cause complications in bus runs and after school activities, there are many convincing reasons to do so. A study made by Dry.Kyle Hailstorm at the University of Minnesota, saw an improvement in attendance and enrollment rates, increased daytime alertness, and decreased student-reported depression in seven schools whose start time changed from 7:15 to 8:40. Other studies have shown less likelihood of experiencing depressed m oods, reduced possibility for tardiness, reduced absenteeism, better grades, reduced risk of drowsy driving, and reduced risk of metabolic and nutritional deficits associated with insufficient sleep, including obesity. Another doctor, Judy Owens, MD and sleep expert undertook studies as well.She found that there was a significant average increase in sleep duration on school nights of 45 minutes across all grades nine to 12 after the change in the school start time. Her report also showed a drastic decline in students who said they rarely or never got enough sleep. The pros more than surpass the cons when it comes to a delayed school start time. All in all, if a little time and effort was put into finding solutions to the few complications that might arise in school starting at 8:30 rather than 7:20, students overall health and academic performance would improve aromatically.If there is one thing students are lacking in their lives, it is most definitely sleep and unfortunately it is a major issue. With all the incredible benefits of suitable sleep and depressing negative effects of not enough, if given the option, students would most definitely choose to sleep rather than be working on hours of school work and staying at after school activities. But, when the start time of school is as early as 7:20, students will be continuing to be sleep deprived and performing the tiring ritual of complaining of lack of sleep. Diagnostic Essay English class that I will have to take I am excited; I come with a great expectation of leaving behind my bad writing experiences; although a kind of weakness opaque my writing strengths I am going to take full advantage of each and every concept learn during the English 1301 class. First of all, I come with a great expectation of leaving behind my writing experiences presented in my lasts English classes.The memory of the first official essay that I wrote in life is enormously disturbing. Do not remember err well the date but it is truly an experience that will always be impossible to forget. It all started when the professor assigned to each one of us a topic from which we had to develop an essay. I have to mention that the word â€Å"plagiarism† was not in my vocabulary, so I immediately went into the site of lazy people called â€Å"Wisped† and started to copy and paste all the useful information that I found.That way my worked was finished in less than 10 minutes. As well, it was no longer necessary to put attention to the professor essay explanation. Consequently, the teacher did not even take ten seconds o detect my cheat when she was grading my work. After a horrible F in my grade and after a great shame in front of everyone in my class, I realized that the lessons that the teacher had given during the class was going to help me write my essay and obviously what I did was wrong and it was considered â€Å"plagiarism†.Above all, the positive part of this bad writing experience is that promised that will never do it again, and that I was going to use every skill learned in each and every English class in order to be able to develop perfect essays without any plagiarism. On the other hand, especially in this class, a weakness opaque my writing retries; this is due to the fact that English is considered my second language. I come from Monterrey, Mexico and I moved 3 years ago to this country. My first language is Spanish.All my thoughts and ideas in my head are produced in Spanish and in a matter Of seconds I translate it into English. Of COUrse, that point that I see it as a weakness will only disappear if I give the double of the effort. However, through the pass of the years realized that one of my greatest virtues is my agility in the development themes, especially if the theme has to do with science or social problems. As a matter of fact, spent woo to three hours every day reading science magazines or books, and that has helped me when need to develop essays.That's exactly what will do in this English 1301 course; I am going to squeeze 100% each and every knowledge given by the teacher. Improving and enhancing the area of reading comprehension through the ‘Mercury Reader book As well as learning how to adequately answer each and every question used to complete the journals. My goal is to get into the nursing program. Come with the clearly idea that every lesson, every concept learned in this course dur ing this semester will have a positive impact on my future.

Custom Molds, Inc Essay

Case is about family business (father and son : Tom and Mason Miller), which began producing molds and later added production of plastic parts to main business. Although production is traditionally being focused on quality and design of both molds and plastic parts (mass production/ customization accordingly), total number of order is remained the same, but client’s desires have been shifted. 1). Custom Molds Inc. has faced the following major issues: Although the number of parts orders remained virtually constant, the volume per order for parts has increased significantly during last 3 years. These, has created bottlenecks and has led to late deliveries of parts. Two different processes (fabricating molds/producing plastic parts) take place in a single facility. Above-mentioned processes serve different customer needs. Fabricating molds requires more skill-oriented stuff, more flexible and qualitative process. Competitive advantage for finished molds (fabricating molds process) is based on delivery and low cost, and moreover this process has much more higher margin that for producing plastic parts. Sales mix changing has created excess capacity in mold fabrication. Changing electronics manufactures (Custom Molds`s major clients) strategies has influenced order needs in unexpected way. Difficult to predict â€Å"when?† and â€Å"where?†. 2). The competitive priorities for each of the individual processes are the quality, cost effectiveness and customer responsiveness. The changing nature of the industry was in the tendency of manufacturers to develop strategic partnerships with suppliers. Hence, more and more demand for responsiveness was laid upon suppliers to sustain the competition. In the Custom Molds’ case, as order for multiple molds began declining, the responsiveness of the  individual processes began suffering due to the capacity constrains (bottlenecks) at different stages of operations. This naturally entailed the lost sales to customers. (All the individual processes that are carried out at Custom Molds are shown on the flow diagram in exhibit t# 1). 3). Our team suggestions are: Mold fabrication- to focus on small capacity/ specialized machines, and include more workers in supervising process. Producing of plastic parts- to focus on little number, but large capacity machines with insufficient input (workers). Testing and inspection – to move this area in the centre of facility (to make movement of goods more efficient and to make easier communications between inspecting/testing workers and managers). Office- a) to make order placement more truthful (matching ability of order fulfillment with time promised); b) to identify customers` needs more precisely; c) compare changes and it’s influence on company’s finance (taking into consideration return on income); d) due to the market demand company should make strategic decision and conclude if it is better to concentrate on molds or plastic parts (this is the most appropriate alternative).

Course Project 1 - 1131 Words

Course Project-Part 1 Hannah Satterthwaite Professor Gatto DeVry University Finding the Best Loan Options 1. Assuming that AirJet Parts, Inc. is considering loans from National First and Regions Best, what are the EARs for these two banks? National First- (1+.0675/2) ²-1 = .078890625 Regions Best- (1+.1317/12) ¹Ã‚ ²-1= .1399478787 Using the Estimated Annual Rate formula, I found that National First estimated annual rate was 7.9% and Regions Best was 13.995% 2. Based on your calculations above, which of the two banks would you recommend and why? Explain your rationale. I would recommend AirJet Parts, Inc. to go with National bank since the interest rate is significantly lower. When you borrow loans, you want to get the†¦show more content†¦Bond Evaluation 1. What coupon rate should AirJet Best Parts set on its new bonds to sell them at par value? Bond value=coupon x [1-1/(1+r)T/r+1,000(1+r)T] Annual coupon= 7.50% Face Value= $1000 (usual par price for corporate bonds) Price of Bond= $1,062 Years= 20 Annual interest= .075 x 1,000 = $75 Semiannual interest = 75/2 = $37.50 $1062= 37.5x [1-1/(1+YTM)40/YTM+1,000(1+YTM)40] 6.92% 2. What is the difference between the coupon rate and the YTM of bonds? The coupon rate is the annual coupon divided by the face value of a bond. This differs from YTM because this shows us the percent rate that the coupon will have. It also is a more fixed rate, unlike the YTM, which increases the bond’s value. The Yield to Maturity Rate is the rate required on a bond. This helps to determine the value of a bond at a particular point in time. 3. What factors will contribute to the riskiness of these bonds? Explain in detail your rationale. The first kind of risk that could affect the bonds is credit risk. There is a chance that the bond could be defaulted, which means that the yield rate will decrease. The other kind of risk factor the company could come across is interest rate risk. Because interest can either increase or decrease there is a probability that AirJet Best Part’s bonds could lose its value over time, depending on how long they have the bond. The longerShow MoreRelatedCourse Project 11173 Words   |  5 PagesCourse Project – Part I  © The content of this document is the property of Wendell W. Bragg and DeVry University. No portion of this document may be reproduced in any manner except as a homework assignment submission. Duplication, reproduction or display either physically or electronically for any other purpose without the author’s written consent is prohibited. Introduction The Course Project is an opportunity for you to apply concepts learned to a real-life simulation experience. ThroughoutRead MoreCourse Project 1718 Words   |  3 PagesBus 379 Course Project March 31, 2013 Task 1 1. National First with an APR of 3.25%(Prime Rate) +6.75%=10% The ERA=(1+10%/2)^2 – 1= 10.25% Regions Best 13.17 APR compounded monthly. The ERA = (1+13.17%/12)^12 – 1= 13.99% 2. I would recommend National First Bank, the ERA with NFB is 10.25% and the ERA with Regions Best is 13.99%. National First Bank is calculated semiannually so it is only twice a year but Regions Best is compounded monthly. The APR with National Best is low evenRead MoreAcct 505 Course Project 1651 Words   |  3 PagesACCT 505 Course Project 1 https://homeworklance.com/downloads/acct-505-course-project-1/ COURSE PROJECT 1 INSTRUCTIONS You have just been contracted as a budget consultant by LBJ Company, a distributor of bracelets to various retail outlets across the country. The company has done very little in the way of budgeting and at certain times of the year has experienced a shortage of cash. You have decided to prepare a cash budget for the upcoming fourth quarter in order to show management theRead MoreProj592 Course Project Part 11941 Words   |  8 PagesCourse Project Part 1 â€Å"Consulting Service† PROJ592 Project Cost amp; Schedule Control Table of Contents Executive Summary/Proposal 3 Project Description 4 WBS (Work Breakdown Structure) 5 Capital Cost Estimates 6 Advanced Cost Estimating Technique 7 Cost Assumptions 9 Financial Analysis 10 Schedule 11 Executive Summary/Proposal The Consulting Service Company will lean on its relationships that have been built in the project management industry to take full advantage ofRead MoreEssay on Course Project Wireless World 1 1 1 1507 Words   |  7 Pagesthe salaries of the managers, Initial Investment in Inventory ($20,000), Legal costs ($160) In our analysis of our Cash-flow budget sheet for the upcoming 5 years of our business venture we managed to drive some the necessary information to project our NPV, IRR, Payback Period and our Pro-Forma projections. In our in-depth research of our data we manage to come up with our Net Present Value of our company which was $857,149.53 which indicated a good sign to go through with this venture. TheRead MoreProj595 Course Project Part 12499 Words   |  10 PagesBuilding an Auqaponic Farm: Construction amp; Operation PROJ592 – Project Cost amp; Schedule Control Course Project - Part 1 Executive Summary With a minimal initial investment of $100,000 and a single acre of level ground, a self-sustaining aquaponics based growing operation can be established and become profitably within 6 months. Through continuous year round vegetable and fish production, this operation can conservatively generate $250,000 in annual revenue starting in the very firstRead MoreEssay on FIN364 Course Project Summary 1 648 Words   |  3 Pagesï » ¿ Course Project: Economic Research Objective Each student is to select research question related to money and banking and develop a well written paper that provides insight into the topic. The goal is to obtain a better understanding of the topic, while relating the identified topic or concept with real world scenarios. Guidelines For this project, select one of the following research questions below. 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It is completed in two parts. The second, Course Project 2, is an opportunity to show the ability to analyze financial statements to arrive at conclusions based upon the analysis. Course Project 1 - OverviewRead MoreEssay on Socs 350 Entire Course Week 1 - 81370 Words   |  6 PagesSOCS 350 Entire Course Week 1 - 8 Purchase here http://chosecourses.com/SOCS%20350/socs-350-entire-course-week-1-8 Product Description (SOCS 350 Cultural Diversity in the Professions - DeVry) SOCS 350 Week 1 Assignment Paper: Let’s Be Lefties for a Day SOCS 350 Week 1 Discussion 1 You Eat What?! SOCS 350 Week 1 Discussion 2 Some of My Best SOCS 350 Week 2 Course Project: Project Proposal SOCS 350 Week 2 Quiz (11 Questions Answers) SOCS 350 Week 2 Discussion 1 Culture is in

The Newly Leaked Secrets to Funny How to Essay Topics Uncovered

The Newly Leaked Secrets to Funny How to Essay Topics Uncovered My principal childhood goal was supposed to turn into a college basketball player. For instance, you can select a topic for elementary, middle, or higher school. Attempt to consider what age is great for students to date with one another. Nevertheless, it's a critically considerable portion of your essay that necessitates many efforts. The primary aim of topic choice for a proposal essay is to show the idea can be put into place in practice. The option of compare and contrast essay topics isn't a simple task because you should demonstrate your analytical skills. Possessing a great sample before your eyes you'll clearly see essay structure and also be in a position to analyze figures of speech. Facts, Fiction and Funny How to Essay Topics Try out another topic and do the exact same 5-minute writing test till you locate a topic you know it is easy to write on. The topics must have two sides and they have to be quite interesting. Perhaps, you should settle on a topic and focus on it. Whenever you do, you're able to now write on topics that'll be humorous to them. All the paragraphs ought to be connected with one another. When paraphrasing, make sure to keep the significance of the author's words. As a way to compose a funny text you must choose an intriguing topic and use the appropriate words. Funny speech topics are often hard to produce. Funny How to Essay Topics - the Story So, you have an essay writing task. The intent of writing a satirical essay is just to entertain readers and thus, topic selection is indeed critical. Pick an intriguing essay topic, and you are going to begin enjoying it. Following are a few of the suggested sociology essay topic for those students that are unable to decide on a great topic for their assignment. When students are writing their argumentative essays which need to find, read and analyze a lot of material to do good. In most cases, they are allowed to choose a topic they want to explore in a how-to essay. At times, utilizing the very same topics over and over again makes they bored and unable to find inspiration to write essays. Most students believe that writing of a funny essay is all about writing of private experience only. Learn how funny argumentative essay topics can receive the interest of your tutor. To compose an outstanding essay, it's vital to use specific academic language. You're guaranteed the communication essay is going to be that which you've asked for. Informative essays are somewhat more descriptive. Remember you can make funny argumentative essays if you do a few things. You won't have to at all times depend on somebody else, to get what you would like. Not everybody can choose to write and come up with something which makes the tear gland work for the incorrect reason. Why you wish to join somebody else's family. Where to Find Funny How to Essay Topics At times, you might be asked to compose funny texts about serious things. Remember your final grade significantly is based on the topic. You should have your reasons, and our primary concern is that you wind up getting a great grade. The help here comes in various categories. Be in the correct place in the most suitable time You should realize what type of humor is for what. Why a lesser quantity of gun control is required. Why gaming is the sole thing you're expert at. The homeless person is the same. You should cause genuine interest in your readers so they need to follow along with your ideas. Naturally, you won't always have an actual situation to discuss for every single topic sometimes you've got to borrow ideas from different people or only apply your imagination. After discovering our website, you will no longer will need to bother friends and family with these kinds of requests. You may believe that interesting essay titles do all of the work, permitting you to add obvious examples and share ordinary ideas. A Secret Weapon for Funny How to Essay Topics Sarcasm is employed in various circumstances, for instance, some might use it in order to clearly show their anger or dissatisfaction about something. As soon as you read and watch more on the subject of satire, you're going to be bette r able to create it. On the flip side, in the most suitable crowd, satire can be amazing. A wholesome dose of humor is really challenging to resist. It's also important to make sure your humor is going to be understood and taken well. Humor is really an art that you want to master. Black humor is likewise not advisable.

Panera Bread Swot Analysis - 1519 Words

Company’s Background The Panera Bread company was started in 1981 as Au Bon Pain Co., Inc. Established by Louis Kane, and Ron Shaich, the organization thrived along the east shore of the United States and universally all through the 1990s and turned into the predominant administrator inside the pastry shop bistro classification. Units were opened in the mall, shopping centers, and airport throughout the 1980s and 1990s. In 1993, Au Bon Pain Co., Inc. bought Saint Louis Bread Company ®, a chain of 20 pastry shop bistros situated in the St. Louis range. Near 1993 and 1997 normal unit volumes expanded by 75%. At last, the idea s name was renamed to Panera Bread in 1997 in every market outside St. Louis. By 1997, Panera Bread could end up†¦show more content†¦have higher growth rate than the company †¢ Inflation that will shot up the prices of food items. Macro environment Analysis by PESTEL Model PESTEL stands for - Political, Economic, Social, Technological, Environmental Legal factors that can impact the macro environment of a company. PESTEL investigation gives awesome insight about working difficulties Panera Bread Company will look in common large-scale condition other than focused powers. Among the 5 factors that can affect the macro environment, I have chosen two factors. These are: - 1) Social-culture factor 2) Laws and regulations Talking about Social-culture factor, Society s way of life and method of doing things affect the way of life of an association in a situation. Some of the social factors are: - 1)Socioeconomics and expertise level of the populace 2)States of mind (wellbeing, natural awareness) 3)Level of education 4)Attitude 5)Culture 6)Age and gender role Talking about more in detail, due to increasing interest in eating healthy food, Panera bread’s menu is consistently reviewed and revised to keep the interest of regular customers, fulfilling their changing consumer preferences and adaptive to change in environment. I would consider it as an Opportunity. To be in the food industry it has made so many changes to be in the market. According to the case study, the company had developedShow MoreRelatedSwot Analysis Of Panera Bread1524 Words   |  7 PagesEXECUTIVE SUMMARY The food service industry is one of the most competitive industries with Panera Bread in the food service industry more focused on a fast causal dining. Large corporations like McDonald, Starbucks, Chipotle, and Yum! Brand all serve their own variations of food which brings strong customer loyalty as well as give more options to customer that want to try something different. Since the industry face so many substitutes capturing and retaining customers is the biggest challenge aRead MorePanera Bread: SWOT Analysis and Recommendations891 Words   |  4 PagesPanera Bread Introduction Panera Bread (NASDAQ: PNRA) is one of the most financially successful quick service restaurant (QSR) chains operating in North America today, having attained a $4.3B market capitalization value as of this writing in July, 2012. Panera is achieving a 7.6% Profit Margin and 12.36% operating margin, both of which are difficult to maintain in an industry known for very rapid product lifecycles and the need to continually invest in the customer experience (Andersson, MossbergRead MorePanera Bread Company Swot Analysis Essay1501 Words   |  7 PagesOrganization This case study identified many strengths Panera Bread has including those dating back to Au Bon Pain Company; however, this section will only identify those strengths associated with the current position of Panera Bread Company. First and foremost is customer service. The company has been awarded with two major customer service awards including the J.D. Power and Associates’ restaurant satisfaction study which ‘‘ranked Panera Bread highest among quick-service restaurants in the MidwestRead MorePanera Bread Case877 Words   |  4 PagesPanera Bread Company Case * Student: -Miguel Etchebarne Question 1 What is Panera Bread’s strategy? Which of the five generic competitive strategies discussed in Chapter 5 most closely fit the competitive approach that Panera Bread is taking? What type of competitive advantage is Panera Bread trying to achieve? -Panera strategy was to make great bread broadly available to consumers across the United States. They have an attractive menu and the dinning ambience of his bakery-cafà ©sRead MorePanera Bread Is Implementing A Broad Differentiation Strategy795 Words   |  4 PagesIDENTIFICATION: Currently Panera Bread is implementing a broad differentiation strategy. Panera’s target market focuses on urban workers and suburban dwellers. Panera’s core concept is to create a unique cafà © experience, while providing high quality fresh baked goods. Panera’s long term strategy includes increasing it’s brand awareness, and to become the leader in the specialty bakery-cafà © segment. In order to achieve this goal, Panera plans to expand its locations, boost earnings per share 15%-20%Read MorePanera Bread Strategy Essay1230 Words   |  5 PagesRunning head: PANERA BREAD CASE Title: Panera Bread Strategy Ron Johnson March 1, 2009 Southwestern College Professional Studies Abstract This case study is about Panera Bread Company and its strategy it wishes to employ to become the best brand name of fresh bread in the United States. Panera Bread’s use of a broad differentiation strategy has helped their profitability and growth and rivals have found it hard to compete with the competitiveness of Panera Bread. A SWOT analysis will revealRead MorePanera Bread Case Study1356 Words   |  6 PagesPanera Bread Case Study 1. SWOT Analysis Strengths Panera is a company with many strengths. Many of their strengths stem from their positive interactions with their customers. Panera’s first strength is their high level of customer loyalty and satisfaction. They ranked in the highest categories in both compared to their competitors. This is a distinctive competency that they hold, something that they do better than their rivals. Resulting from Panera’s high customer satisfaction is their nextRead MorePanera Bread Company1126 Words   |  5 Pages1. What is Panera Bread’s strategy? Which of the competitive strategies discussed in Chapter 1 most closely fit the competitive approach that Panera Bread is taking? What type of competitive advantage is Panera Bread trying to achieve? Being a nationally recognized brand and a dominant in restaurant operations in the specialty bakery cafà © segment and to expand broadly in the regional market is Panera’s strategy. And by giving high quality product Panera is following their strategy. Panera’s CompetitiveRead MorePanara Breads Essay1319 Words   |  6 Pages| â€Å"Panera Bread Company in 2011: Pursuing growth in a difficult economy. | | Module II | | â€Å"Panera Bread Company in 2011: Pursuing growth in a difficult economy. | | Module II | MGT 495 March 30, 2013 Nate Huffman 127203 MGT 495 March 30, 2013 Nate Huffman 127203 Table of Contents What are the strategy elements of Panera Bread Company? How well do the pieces fit together? The two best indicators of how well a company’s strategy is working are whether theRead MorePanera Bread1420 Words   |  6 PagesOverview Panera Bread is ready for an epochal change in American eating habits. The company is a leader in the quick-casual restaurant business with more than 1,027 bakery-cafes in 36 states. Its locations, which operate under the Panera and Saint Louis Bread Company banners, offer made-to-order sandwiches built using a variety of artisan breads, including Asiago cheese bread, focaccia, and its classic sourdough bread. Its menu also features soups, salads, and gourmet coffees. In addition

Ethicsof monitoring network usage Essay Example For Students

Ethicsof monitoring network usage Essay Please compare and contrast the three types of policies youve experienced based on the potential social, political and ethical issues involved. Does one policy fit all companies or are there some companies where one policy makes more sense than others and why? Does company size matter and why? Does the employee job role matter and why? All three policy are different and companies are different. Just because one policy fits one company does not mean the other policies would benefit that company, Companies are unique and require different tasks and tools to be productive. I do not think the passive monitoring policy would benefit any company. It would only allow employees to have access to all information, download viruses, and be less productive at work. Yes the company size does matter. In large companies there are multiple computers and employees using them. It would be difficult to monitor all employees. If everyone in the company was on the internet at same time the bandwidth would be slow making productivity slow. Some employees rely on internet use. E-mails back and forth to suppliers, searches for new ideas, creating web pages, etc are art of some companies and the employees who are in charge of this needs unlimited access to the internet. Which network policy do you prefer? Active Monitoring How did the social, ethical, and/or political considerations impact your choice? I think the zero tolerance was to strict and had a negative impact on productivity in some departments. At the same time it helped productivity and what internet use was done did not slow down the bandwidth. Also do not think that companies have the right to monitor employees personal e-mail, but if the e- ail is set up with the company than the company has all rights to monitor it. The Active monitoring would benefit several companies. Think restricting what cannot be accessed is more beneficial than trying to go in and unblock sites that are needed for research, It is more ethical to monitor systems for unapproved application that to try and ban all applications. The passive monitoring is way to lenient. Employees have too much access to the internet. It will slow down bandwidth, be more acceptable to viruses, and decrease productivity is some departments.

Molluscs and Natural Selection free essay sample

The process of natural selection is one of the most cited reasons for the evolution of a species, and it was made famous by Charles Darwin’s famous observations of finches in the Galapagos Islands. It is believed to work by way of random mutations; random mutations occur, as it indicates, randomly and spontaneously in a population for a multitude of genetic reasons. Mutations help to create variation of different traits within a species, and they can be expressed with different phenotypes. In times where a mutation has no negative effect on the individual organism, this trait could be advantageous in a new habitat or predatory situation, etc. With an advantage in survival, and thus reproduction, these organisms are often selected for over other members of the species, creating a change in variation of a species over generations. Molluscs, although a very large and diverse group of animals, often share certain features: a mantle, radula, shell, and foot. We will write a custom essay sample on Molluscs and Natural Selection or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page The mantle is a thin and fleshy layer which secretes the hard shell of a mollusc. The radula is a grate-like structure in the mouth used to scrape surfaces and drill holes. The foot is a muscle which assists in locomotion and movement of the molluscs. It is hypothesized that all current-day molluscs share a common ancestor, called the hypothetical ancestral mollusc or HAM, because of the similar characteristics and body plans that have been modified in diverse ways over time to adapt to different environments. Two members of the mollusc family include the clam, of the class bivalvia, and the squid, of the class cephalopoda, and these are an example of variation from the HAM that helped them adapt for their particular environment, feeding behavior, and movement (Sigwart, 2007). The squid species has undergone many adaptations. The squid’s radula resembles a beak-like structure that it uses to devour its food, very different from the chiton-like HAM which probably had a small radula. Over time, the radula’s shape has been mutated and then selected for as the squid changed its eating habits – if it provided quicker eating time, then it would be selected for. The squid lacks an outer shell (it’s internalized), so the mantle of the squid has also been modified into muscular â€Å"flaps† that it uses to propel itself quickly through the water, nd thus capture prey or avoid predators, a necessary function due to the squid’s lack of a hard protective barrier (Sigwart, 2007) A large shell would be unnecessary for the squid since it can propel quickly away from predators, and may even hinder its ability to swim; this would lead one to believe that the squid developed a muscular mantle from HAM and then a mutation for loss of the shell was selected for following the muscular body. Also, the foot of the squid has adapted from the single foot of the HAM to become tentacles and arms, used to quickly capture and bring prey closer to its beak-like radula to eat, which is buried behind its many arms. This modified version of its foot is an extremely effective feeding method that, coupled with the squid’s speed, enables it to catch and hold prey that otherwise might be able to escape (Sutton, 2007). The clam is a sedentary mollusc that uses its foot to burrow into the sand. The clam is a filter feeder, straining food particles from the water. The clam doesn’t have a radula, probably the result of a random mutation that caused some clam ancestors to lack the structure, or it may have been modified into another structure that aided in the filter feeding process. The filter feeding process is environmentally selected for because it enables the animal to take in food particles while buried under the sand. The mantle of the clam is found inside of its hard, hinged shell. The strong shell of the clam was environmentally selected for since it prevents predators from easily eating the clam, allows it to bury safely into the sand without affecting its internal organs, and improves the clams ability to survive and reproduce. The foot of the clam has adapted so that the species can dig into the sand with this muscle which can be moved out of the shell, a very different type of foot than the HAM’s muscular, positioned foot which allows for scavenging (Sutton, 2007). The HAM, very similar to the chiton, served as a good base model for this very diverse phylum of animals. Lots of spontaneous and random mutations must have occurred for such diversity – to have sedentary, burrowing animals and predatory, jet-propelling animals in the same phylum of animals is quite a feat.