...Case Study on Online Privacy By Irina Raicu There once was an app called "Girls Around Me." After a sudden outburst of media coverage, it got pulled off the market. Read the summary of the controversy (below), as well as the articles to which it links; what questions do they raise for you? Case Study on Online Privacy In late March 2012, a flurry of blog entries and articles focused on an app called "Girls Around Me." The app, which was produced by a Russian developer and available through the iTunes App Store, presented itself as "a revolutionary new city scanner app that turns your town into a dating paradise!" The app's website asked, "In the mood for love, or just after a one-night stand? Girls Around Me puts you in control! Reveal the hottest nightspots, who's in them, and how to reach them… Browse photos of lovely local ladies and tap their thumbnail to find out more about them." The "lovely local ladies" were not people who had signed up to be associated with this app. They had either chosen to make their Facebook and Foursquare profiles public, or had simply not reset the default privacy settings on their Facebook and Foursquare accounts. By its own description, "Girls Around Me" mashed the publicly available data from Facebook and Foursquare and plotted it onto a map. Users of the app would see a map of their surroundings, with thumbnail photos from publicly available profiles of women who had recently "checked into" particular locations in the neighborhood. Some of...
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...FinePrint Company Case Analysis by Da Zhang Questions: 1. If FinePrint is currently operating at full capacity of 150,000 brochures per month, should the special order from Abbie Jenkins be accepted? [In answering, assume Ernest Bradley has not yet made his offer to handle 30,000 brochures.] John should not take this special order because filling any special order at full capacity at reduced price will fail to satisfy customers who pay full price. Computation of using 25,000 capacity to produce normal brochures: Revenue-Cost=1500*17-22500=25500-22500=3000 Computation of using 25,000 capacity to produce special order: Revenue-Cost=(1250*17+250*10)-(22500-250)=(21250+2500)-22250=1500 Apparently, the profit generated from special order is much less than from normal brochures, thus Fineprint should not take the offer. 2. Assume that Ernest Bradley has made his offer to handle 30,000 brochures. a. Assuming FinePrint is operating at capacity of 150,000 brochures and there is no special order opportunity from Abbie Jenkins, should FinePrint outsource 30,000 brochures to Ernest? Why or why not? Fineprint should not outsource 30,000 brochures to Ernest because the cost that Fineprint produce 30,000 by itself is less than the cost of outsourcing when the revenues remain unchanged. Cost of outsourcing 30,000 brochures=300*8=2400 Cost of self-production of 30,000 brochures=30,000*0.04+(30,000*0.01)*3=1200+900=2100 Apparently, variable cost $2100 is less than outsourcing...
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...Name Date Class COLLIGATIVE PROPERTIES OF SOLUTIONS Section Review Objectives • Identify the three colligative properties of solutions • Describe why the vapor pressure, freezing point, and boiling point of a solution differ from those properties of the pure solvent. Vocabulary • colligative properties • freezing-point depression • boiling-point elevation Part A Completion Use this completion exercise to check your understanding of the concepts and terms that are introduced in this section. Each blank can be completed with a term, short phrase, or number. In a solution, the effects of a nonvolatile _______ on the properties of the solvent are called _______. They include _______ point and vapor pressure _______, and boiling point _______. In each case, the magnitude of the effect is _______ proportional to the number of solute molecules or ions present in the _______. Colligative properties are a function of the number of solute _______ in solution. For example, one mole of sodium chloride produces _______ as many particles in solution as one mole of sucrose and, thus, will depress the freezing point of water _______ as much. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Part B True-False Classify each of these statements as always true, AT; sometimes true, ST; or never true, NT. 11. When added to 1000 g of water, 2 moles of a solute will increase the boiling point by...
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...out of the plant by a process called transpiration. When there is a shortage of water, the guard cells well get smaller and close the stomata, and the transpiration process will move slower. The osmolarity would be tested with solute concentrations ranging from 0.0 M to 0.6 M. The concentrations increased 0.1 M each time and the solute used was sucrose. The goal of this experiment was to determine which concentration had the least effect on the potato after being incubated. This information helped us estimate the osmolarity of the potato tuber tissue. Our group hypothesis is that the osmolarity of the potato will have the concentration with the 0.1 M solution. This hypothesis is based off the predicted outcome that smaller molarity concentrations will have the least effect on the potato. The more solute added to a solution decreases the concentration of water in most cases (Kosinski). The decrease in water concentration would then lead to a lower weight of the potato tuber once it has finished incubating. Methods & Materials: For experiment A you will need the following items: 1 large potato tuber Forceps petri dish razor blade DI water metric ruler 7 250 mL beakers/ or disposable cups balance that weighs to the nearest 0.01g sucrose...
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...FUNDAMENTALS OF SURFACE MODES: ¥ COLLOIDS ¥ means ÒglueÓ in Greek ¥ was coined in 1861 by Thomas Graham. ¥ ¥ ¥ ¥ ¥ WHAT IS A COLLOID? usually consists of two phases; one continuous phase in which the other phase is dispersed. Size of particles: larger than the size of molecules and small enough for the dispersed phase to stay suspended for a longer period of time. ¥ No strict boundaries for the size limits. OFFICIAL DEFINITION ¥ In 1903 Wolfgang Ostwald formulated the official definition of a colloid: ¥ a system containing entities having at least one length scale in between 1nm and 1µm. ¥ For smaller particles there is no distinct boundaries between the phases and the system is considered a solution; ¥ for larger entities the particles will fall to the bottom due to the gravitational force, and the phases are separated. 1 2 3 MESOSCOPIC PHYSICS ¥ The particle size is in the so-called mesoscopic range in between the macroscopic and microscopic limits. LARGE INTERFACIAL AREA ¥ One very important quality of the colloids is the large interfacial area between the dispersed and the continuous phases. WHAT EFFECTS HAS THIS? ¥ This means that interface effects and hence the electromagnetic surface modes, are very important for the properties of the colloids. ¥ It costs energy to create this much surface and the particles would clump together if this isnÕt prevented. ¥ Usually the particles are charged and hence repel each other. 5 6 4 Four states...
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...Download Now for Free PDF Ebook Lakeside Hospital Case Solution at our Online Ebook Library. Get Lakeside Hospital Case Solution PDF file for free from our online library LAKESIDE HOSPITAL CASE SOLUTION PDF Download: LAKESIDE HOSPITAL CASE SOLUTION PDF LAKESIDE HOSPITAL CASE SOLUTION PDF - Are you looking for Ebook lakeside hospital case solution PDF? You will be glad to know that right now lakeside hospital case solution PDF is available on our online library. With our online resources, you can find lakeside hospital case solution or just about any type of ebooks, for any type of product. Best of all, they are entirely free to find, use and download, so there is no cost or stress at all. lakeside hospital case solution PDF may not make exciting reading, but lakeside hospital case solution is packed with valuable instructions, information and warnings. We also have many ebooks and user guide is also related with lakeside hospital case solution PDF, include : Applied Calculus 4th Edition Even Answers, Basic Chemical Solutions, Catalytic Solutions Inc Case Study, Calculus Early Transcendentals 7th Edition Yonsei Solutions, Congress Scavenger Hunt Answers, College Algebra Textbook Answers 2, Congress Of Vienna Guided Answers, Chapter 18 Study Guide Answers, English Grammar Third Edition Answer Key, Fac1502 Oct Nov 2012 Solution Docx, Food Safety Test Questions And Answers, Hayden Mcneil Bio 101 Lab Manual Answers, Harcourt Trophies 5th Grade Answer Key, Holt Mathematics Lesson 9...
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...Preparing to Conduct Business Research: Part 1 As a large organization there will be a numerous amount of issues being faced on a day to day basis. The organization must be able to come up with successful solutions to fix these issues in order to keep the customers satisfied and prevent loss of revenue. One issue with a cable company that provides products and services by appointments is constantly running late and missing appointments. The company schedules appointments to resolve the customers issues, but the main issue is that the company does not make it to the appointment on time or never shows up at all. The company should take drastic measures to keep the commitment of going to the customers home in order to provide excellent customer service. It is imperative that this company finds a solution to this issue because there are a large amount of customers being inconvenienced every day due to the late and missed appointments. In the scheduling process of the appointments the company tries to make each customer happy by giving them the date they are requesting. With this being the case the days ends up getting overbooked. The company allows an overbooking percentage of up to 103-105% for the load. While the company is giving the customer the date they want, essentially they are pushing other customers out of the load. There are managers assigned to each state and those states are broken down into different regions i.e. north, south, east, west. It is the duty...
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...within the bag equal to the concentration outside the bag. The glucose solution moved out of the bag making glucose present in the beaker. The glucose moved to make the solute concentration inside and out equal. If the initial and final % concentration of glucose and IKI for in the bag and in the beaker were given they...
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...TO: Kent Walker, Instructor Department of English FROM: Adegun Adediran Bachelor of Business Economics DATE: June 6th, 2014 RE: Barriers and solutions of a start up company [Case 2]. The owner of the company has requested that the company has grown enough that group meetings would be needed from now on, so the owner has told me to provide some barriers that we may face and some solutions to overcome it. One of the principles of interpersonal communication is that it’s a face-to-face communication, which makes it a transactional process. This kind of communication is simultaneous, which means it involves all communication mediums. The main purpose of this is to find some barriers of this group activity in the company and find solutions to it. Some of the barriers of this group activity are role issues, Negative individual approaches and time constraints, while the solutions to these barriers are anticipating the barriers, identifying and agreeing upon roles and applying the SMART criteria to goal. The first potential barrier is the issue of roles. In group activities there is always bound to be issues of people feeling that they are not being valued enough which causes some dissatisfaction amongst these members that feel that way, the group will also have competition which sometimes causes conflicts in the group although it is healthy for the group. Secondly, there is the...
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...performed.2,3 Recrystallization works based on the difference in solubility when the temperature changes. Therefore, picking the solvent to dissolve the compound is a very tricky and important part. For single-solvent recrystallization, which is performed in this experiment, the chosen solvent should not dissolve the sample while cold, so that the crystal can be formed when the temperature drops. However, the solvent should dissolve the sample completely while hot in order to release all the impurity crystals being trapped up in the solid form of the desired compound. Furthermore, the impurities should have higher solubility than the desired compound in that chosen solvent, so that all the impurities would remain in the solution while recrystallization takes place.2,3 In case no single solvent can be found, a system of two solvents can also be used for recrystallization. Generally speaking, in this solvent pair, one of them can completely dissolve the sample while the other one cannot dissolve the sample at all. The primary requirement when making this system is that the two chosen solvents have to be completely miscible, in other words, can mix with each other in all proportions. After this requirement is satisfied, all students need to do is to find out the right proportion for the system.1,2,3...
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...just enough hot solvent to it to completely dissolve it. The flask then contains a hot solution, in which solute molecules - both the desired compound and impurities - move freely among the hot solvent molecules. As the solution cools, the solvent can no longer hold all of the solute molecules, and they begin to leave the solution and form solid crystals. During this cooling, each solute molecule in turn approaches a growing crystal and rests on the crystal surface. If the geometry of the molecule fits that of the crystal, it will be more likely to remain on the crystal than it is to go back into the solution. Therefore, each growing crystal consists of only one type of molecule, the solute. After the solution has come to room temperature, it is carefully set in an ice bath to complete the crystallization process. The chilled solution is then filtered to isolate the pure crystals and the crystals are rinsed with chilled solvent. How To Do a Crystallization : Heat some solvent to boiling (remember to use a boiling chip). Place the solid to be recrystallized in an Erlenmeyer flask. Pour a small amount of the hot solvent into the flask containing the solid. Swirl the flask to dissolve the solid. Place the flask on the steam bath to keep the solution warm. If the solid is still not dissolved, add a tiny amount more solvent and swirl again. When the solid is all in solution, set it on the bench top. Do not disturb it! After a while, crystals should appear in...
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...from a solution, melt or more rarely depositeddirectly from a gas. Crystallization is also a chemical solid–liquid separation technique, in which mass transfer of a solute from the liquid solution to a pure solid crystalline phase occurs. In chemical engineering crystallization occurs in a crystallizer. Crystallization is therefore an aspect ofprecipitation, obtained through a variation of the solubility conditions of the solute in the solvent, as compared to precipitation due to chemical reaction. PROCESS: The crystallization process consists of two major events, nucleation and crystal growth. Nucleation is the step where the solute molecules dispersed in the solvent start to gather into clusters, on the nanometer scale. The crystal growth is the subsequent growth of the nuclei that succeed in achieving the critical cluster size. Nucleation and growth continue to occur simultaneously while the supersaturation exists. Crystallization in nature There are many examples of natural process that involve crystallization. Geological time scale process examples include: Natural (mineral) crystal formation (see also gemstone); Stalactite/stalagmite, rings formation. Usual time scale process examples include: Snow flakes formation (see also Koch snowflake); Honey crystallization (nearly all types of honey crystallize). Artificial methods For crystallization (see also recrystallization) to occur from a solution it must be supersaturated. This means that the solution has...
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...Potassium Chloride in Water Research question How does temperature affect the solubility of potassium chloride in water? Hypothesis As the temperature of water increases, the particles of solid Potassium chloride, KCl, which are absorbing energy from its surrounding, start moving more easily between the solution and its solid state because. According to the second law of thermodynamics, the particles will shift to the more disordered, more highly dispersed solution state. I predict that as the temperature of a KCl and water mixture increases, then the solubility of the KCl will also increase. Variables Dependant variable The dependant variable will be the solubility of Potassium chloride in water that will be calculated at different temperatures. The solubility will change as temperature increases. Independent variable The control variables need to be constant in order to get valid and accurate results. The temperature of the solutions. Controlled variables The volume of distilled water used to dissolve Potassium chloride in each beaker The amount of Potassium chloride deposited into each beaker. The volume of the solution extracted by the syringe. Weight of each 50ml beaker Materials 6 Syringes 1 Heating plate 6 distinctly labeled 50ml Beakers 1 Electric Balance 6 Stirring Rods Distilled Water 6 distinctly labeled 100ml Beaker Controlling the variables The mass of Potassium chloride and the volume of distilled...
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...offer all kinds of treatments so patients' care would be continued without any disruption. PH’s patchwork IT infrastructure is in critical condition, so it has major IT infrastructure problems. CEO of PH Max Berndt is trying to find the right solution. He has an option to go with monolithic system that will provide consistency across PH’s facilities but may not give doctors enough flexibility or he can choose service-oriented architecture (SOA), a modular design that will allow PH to standardize incrementally and selectively but poses certain risks as a newer technology. Evaluating pros and cons of both SOA and monolithic system, SOA seems less expensive in the long run than the monolithic system. CEO Max Berndt does not like the basic force to make homogeneous across the network hospitals, especially for non-routine stuff. So, he considers applying SOA as a new information system. Monte Ford, Sr. VP/CIO of American Airlines, recommends SOA and mentioned as “the company doesn’t have the luxury of waiting for a lot more certainty; its infrastructure needs a solutions now”. Likewise Randy Heffner, a VP at Forrester Research also recommends SOA. The interesting thing to note is that none of the experts recommend a monolithic system on case commentary. It is recommended PH to apply SOA because of low costs, easy to use, flexible and low time...
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...Recrystallization Par, B., Ramos, S., Reynaldo, H., Roque, P., Servidad, Y., and Soriente, P. 2D-Pharmacy, Group No. 7, Department of Pharmacy, Faculty of Pharmacy, University of Santo Tomas, España Boulevard, 1015 Manila, Philippines Abstract Recrystallization is the primary method of purification used to isolate organic compounds in a supersaturated solution by the difference of solubility at different temperature that results to the separation of the compound from the solution. The purpose of this experiment is to synthesize acetanilide by the acetylation of aniline and to obtain pure acetanilide by purification of the collected crude acetanilide by crystallization. The recrystallizing solvent was chosen among ethanol, water and hexane. The acetanilide was synthesized and formed by acetylation of aniline and acetic anhydride, and it was then cooled to hasten the formation of crystals. After cooling, the mixture was filtered and dried to obtain the crude acetanilide. The crude acetanilide and the chosen recrystallizing solvent was mixed and heated in the water bath until the solid dissolved. The solution was filtered while hot and its filtrate was cooled in an ice bath. The filtrate was then filtered to collect the crystal residue formed. The crystals were washed with distilled water and allowed to dry to obtain the pure acetanilide. The weight of pure acetanilide was measured and the melting point of the pure acetanilide was determined. Based on the results obtained...
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