introduction Essays (1242 words) - Tablet Computers, Gawker Media

Goaste Security Objectives Apple which has been an existing computer design company since 1976 released its newest creation ipad on June 4, 2010. Apple also partnered with ATJust a few days prior to the sale of the first ipad there was publicized news that the modern device had a default within its security that could link information to potential computer hackers. The discovery of this flaw was uncovered by Goaste Security firm. The firm hacked into AT&T?s website and was able to connect the id?s of new ipad owners to their email addresses. Goaste security officials were able to seize as many as 100,000 email addresses if not more. These email addresses consisted of politicians, government officials, well-known corporate officers and many other recognized and influential people. Goaste Security then released the information of their findings to Gawker Media LLC, and then told AT&T of the error that was uncovered due to their investigational hacking. There could have been a number of reasons to why Goaste Security decided to make this information public. One objection might have been for the sole purpose of exposure. Since Goaste is a fairly new security firm and there had been no recognition of the firm before the ipad incident the firm could have been pulling a publicity stunt for its own advertisement. This seems to be the case since the firm did not take the proper steps of contact, which would have been to first make AT Furthermore Goaste Security Firm could have been trying to establish a relationship with AT&T to sway them to come on board as one of their first clients. The firm could have been doing this by showing off their skills to recognize the potential hazards for security hackers to use against AT&T. Computer Hacking Computer hacking is not an unethical strategy for security firms to use however they should get consent before being able to practice their hacking skills. Especially since the case is that their specialty is computer hacking and they are using this special interest as a profession. Before computer hacking firms use these types of proficiencies both the firms and the companies in which the firm is catering to, must have established a written document preferably a contract agreement that discloses information as to what type of services the firm will provide and the steps that a necessary to fill the duties of the contract. Moreover under no circumstances should the security firm be able to release information to any third parties about discrepancies or any other acquired facts that the firm has unveiled due to its investigation. Under no circumstances should the security firm be able to release information to any third parties about discrepancies or any other acquired facts that the firm has discovered due to its investigation. Under no circumstances should the security firm be able to publicize information about the proposed company. It should be left up to the specified public relations department to make the decision to notify the public about any information that is related to the business of any company and its shareholders. For future notions, there should be more strict rules and regulations that come into play when monitoring hackers. More security software should be invented and tested to the highest quality to prevent future hackers. Security firms should be the leaders that implement these secure tools. These firms should also stay up to date with the many different databases so that they may develop software accordingly. Gawker Media Gawker Media is a web based company that is made up of a networking blogs site. Gawker was founded in 2002 and its corporate headquarters are based in New York, New York. Goaste Security firm was the company that appertained information from AT&T?s websites that was able to view private data that could have subjected AT&T customers to targets for unauthorized hackers. After Goaste Security firm gained this information they then revealed these findings to Gawker Media. The firm then took this report and made it public knowledge. Under no course of events should Gawker

buy custom Sex Education essay

buy custom Sex Education essay People often hear their parents and grandparents reminiscing about the golden past. They give examples of how things worked at the time whether it is regarding eating habits, manners or clothing. Most of all, one often hears people compare and contrast the teen culture of today with the past. Traditional thought holders frequently complain about teens receiving sex education openly in schools, stating that too much knowledge about the subject will cause them to become curious and therefore more likely to engage in casual sex. However, as Francis Bacons quote states, knowledge is power meaning that with the proper knowledge, the risk of harmful sex and early pregnancies is removed. The reason some people are against this education is because they believe the classes are targeting students in a negative way, providing them with a fantasy-like or unrealistic image about the taboo subject. On the contrary, health classes focus on teaching students about the sexual intercourse process, the risks and diseases involved and the pregnancy process along with birth control options. If this information was not presented, teens would rely solely on their own research, often from real life experiments, or from exaggerated rumors and stories. In the safe classroom environment, information such as unrotected sex, safe sex and abstinence is presented responsibly. Once students gain this knowledge, they are able to make intelligent individual choices. Moreover, peers do not pressure each other to make hasty decisions as they have been educated equally. As for the risks, they are a main focus of the curriculum. When talking among peers, students rarely mention the negative aspects of sex and therefore, ignore the issue. However, teachers focus on outcomes of unsafe encounters including sexually transmitted diseases, infections and unwanted pregnancies. Through this newfound awareness, teenagers points of view enhance and they are no longer pushed by blind ignorance into life threatening troubles. Furthermore, schools do not stop at simply giving out facts. The diligent leaders provide simple yet valuable resources to the student body. In fact some argue there should be more focus on sex education. However, because of time restrictions, not all concerns can be answered. Therefore, students have the option of accessing further information through guidance counselors, local Planned Parenthood clinics or even fellow peer counselors. These resources aid students who have dealt with real sexual problems such aas rape and physical and emotional abuse. Also, conservative religious parties make up main opposition to public sex education, believing that speaking freely about this topic will harm teenagers. However, these groups are gradually changing their minds as teenage pregnancy rates have declined due to the education provided. There are even social movements that refuse to back up this effort because they lack the understanding and proof of how greatly and positively sex education has affected people. They fail to realize that with the fast moving time, the culture, mindsets and living norms are changing drastically and call for unconventional methods to deal with the growing problems. Sex education does more than simply tell students about what sexual intercourse is. It helps develops attitudes and moral standards for the upcoming generations. Students are taught to engage in healthy relationships emotionally as well as physically. Other relationship aspects like bullying, abuse and stereotypes are explored to make individuals alert and realistic. This knowledge stays with them throughout their lives and impacts every relationship they have. Therefore, it is better to have the knowledge imbedded in their minds properly and maturely instead of receiving it from unreliable resources. Buy custom Sex Education essay

Assignment 8 Essay Example | Topics and Well Written Essays - 1000 words - 1

Assignment 8 - Essay Example After interpreting the data collected, the researcher can contemplate on the situation investigated clearly. The action plan will enable the researcher to understand the phenomenon investigated. Therefore, the researcher will easily present it to the people interested or improve and assess whether they have met or answered question they asked during initialization of action research project. The action plan will also enable the researcher to identify the presence of new problems. When starting an action research project, researchers list the problems available in the situation. After the research, the action plan will help them identify other problems they had not speculated. Action plan is also essential as it helps, especially in the plan or instructional method executed during the research program. Action planning will assist the researcher to assess if the plan executed during the research has resulted as hypothesized or not. Action planning also depicts the ineffective programs if the plans planned during the initialization of the research have not given results as anticipated. Lastly, action planning is important as it helps in modifying the steps used in the research. The researcher will revamp the previous methods in order to achieve better results in future action research projects. Professional reflection is essential during action planning. Professional reflection involves quantifying and contemplating on the procedures and results concluded from the action research project. It is, therefore, important for the researcher to reflect professionally after the research project results. Professional reflection enables the researcher to reexamine where the action research has taken them. The researcher will continue with the action plan if it has taken them to where they had predicted. Unfortunately, if the action plan is

Government Essay Example | Topics and Well Written Essays - 500 words - 1

Government - Essay Example There are two systems operating in Senegal; one, the system of French law and civil courts. As you are probably aware, it is necessary to the colonization process that the framework of familiar law with which the immigrants of the colonizing country are accustomed to is quickly established in order to maintain that sense of both justice and civilization. This is very important because in an otherwise uncivilized society, such chaos and lack of law can quickly begin to work against the administrative officials charged with civilizing the land. As you are probably aware, the history of Senegal is one of indigenous populations being indoctrinated into the Islamic faith, beginning in the 17th century. Thus, the law of civilized Christianity is foreign to those indigenous peoples who possess an awareness of law; and the rest of the population that are not Muslim, have a strong code of tribal chieftain law that has long served as the parameters within they conduct themselves. In order to provide the indigenous population the necessary time to assimilate into French custom and law, it is necessary to operate two legal systems; that of the indigenous Muslim and chieftain systems, and the French system. The French law and system extends throughout the land, of course, and is applicable in those situations where if an indigenous person is keenly aware of French domination, that they will be treated according to the French law. This has come to pass within the larger cities here, although we do find that Islamic law, severe in many ways, is useful when called upon and allows us to expeditiously deal with malcontents and upstarts who would undermine the French Crown in our endeavors here. Tribal law is recognized to the extent that we pay homage to the chieftains in order that much of the labor in building roads and railways throughout the country is provided by those groups. The more intellectual indigenous, the Muslims, make excellent liaisons between

Japanese contemporary art and Korean contemporary art Coursework

Japanese contemporary art and Korean contemporary art - Coursework Example The essay "Japanese contemporary art and Korean contemporary art" presents contemporary art practice in Japan and Korean, comparing and contrasting their different attributes. The paper also attempts to highlight the diverse effects that art have on the respective communities. The introduction of religion had a great significance to the Korean artistic images, and artistic styles were manifest in the temple developments, bronze statues, portraits and exemplified manuscripts. Also, Korea’s physical position at the crossroad of East Asia- between its two larger neighbors, Japan, and China – added an enormous influence on its history and culture and its artistic fundamentals. Korea functioned as an outlet between China and Japan for philosophies and theories and technologies that enriched Koreans artistic innovation and skills. Moreover, scholars have established non-passive role of Korea of spreading artistic ideas across to Japan or China, and recognized it not only diff used culture but also integrated it resulting to unique Korean art and culture of its own. Japanese art covers broad assortments of art styles and media that include ancient poetry, wood and bronze sculptures, silk and paper ink paintings, and other type artwork. Japanese painting has a rich history of synthesis and rivalry between natural Japanese aesthetics and utilization smuggled ideas. Further Japanese sculptures mainly originated from the idol reverence in Buddhism or animistic rites of Shinto deity. Particularly.

Sucker Rod Pumping System Engineering Essay

Sucker Rod Pumping System Engineering Essay Artificial lift allows wells to be produced that are non-flowing. Generally this is achieved by a mechanical device inside the well, such as pump; decreasing the weight of the liquid/gas mixture via high pressure gas; or improving the lift efficiency of the well. In the production string (tubing) that is usually set without a production packer, a pump placed below the dynamic fluid levelling the well lifts the crude up to the surface. This energy input allows the fluid to continue on its way and relieves the pay zone of all or part of the back pressure downstream from the pump. Sucker Rod Pumping is the most common method of artificial lift (85%), with gas lift second (10%), and then electrical submersible and hydraulic pumping about equal (2%) in usage. Sucker rod pump uses a vertical positive-displacement pump consisting of a cylinder and a hollow plunger with a valve i.e. it works by creating a reciprocating motion in a sucker rod string that connects to the downhole pump assembly. It is run into the tubing screwed onto the end of a rod string. The system is actuated from the surface by a motor that drive a walking beam or a hydraulic elevator. Introduction Sucker Rod Pumps, also called Donkey pumps or beam pumps, are the most common artificial-lift system used in land-based operations. Motor drives a reciprocating beam, connected to a polished rod passing into the tubing via a stuffing box. The sucker rod continues down to the oil level and is connected to a plunger with a valve. On each upward stroke, the plunger lifts a volume of oil up and through the wellhead discharge. On the downward stroke it sinks (it should sink, not be pushed) with oil flowing though the valve. The motor speed and torque is controlled for efficiency and minimal wear with a Pump off Controller (PoC). Use is limited to shallow reservoirs down to a few hundred meters, and flows up to about 40 litres (10 gal) per stroke . Technical Details: Artificial lift allows wells to be produced that are non-flowing. Generally this is achieved by a mechanical device inside the well, such as pump; decreasing the weight of the liquid/gas mixture via high pressure gas; or improving the lift efficiency of the well. Artificial lift consists of two main processes: Mechanical lifting by pumps. Lessening the fluid density by mixing with gas injected in the part of the production string ,or gas lift In the production string (tubing) that is usually set without a production packer, a pump placed below the dynamic fluid levelling the well lifts the crude up to the surface. This energy input allows the fluid to continue on its way and relieves the pay zone of all or part of the back pressure downstream from the pump. The two most common pumping methods in the world are: Sucker rod pumping Centrifugal pumping Sucker Rod Pumping: It is the most common method of artificial lift (85%); with gas lift second (10%), and then electrical submersible and hydraulic pumping about equal (2%) in usage. Sucker rod pump uses a vertical positive-displacement pump consisting of a cylinder and a hollow plunger with a valve i.e. it works by creating a reciprocating motion in a sucker rod string that connects to the downhole pump assembly. .It is run into the tubing screwed onto the end of a rod string. The system is actuated from the surface by a motor that drive a walking beam or a hydraulic elevator. Components Every part of the pump is important for its correct operation. The most commonly used parts are described below: Barrel: The barrel is a large cylinder which can be from 10 to 36 feet long and a diameter from 1.25 to 3.75  inches (95  mm). After using several materials for its construction, the API (American Petroleum Institute) standardized the use of 2 materials or compositions for this part which are carbon steel and brass, both with an inside coating of chrome. The advantage of brass against carbon steel, weather is a more soft material, is its 100% resistance to corrosion. Piston: This is a nickel-metal sprayed steel cylinder that goes inside the barrel. Its main purpose is to create a sucking effect that lift the fluids beneath it and then, with the help of the valves, take those fluids above it and, progressively, out of the well. It achieves this with a reciprocal up and own movement. Valves: The valve has two components the seat and the ball which create a complete seal when closed. After trying several materials, the most commonly used seats are made of carbon nitride and the ball is often made of silicon nitride. In the past, balls of iron, ceramic and titanium were used. This last type of balls, made of titanium, is still being used but only where crude oil is extremely dense and/or the quantity of fluids is too much. The most common configuration of a rod pump requires two valves, called the travelling valve and fixed or static valve. Piston Rod: Its a rod that connects the piston with the outside of the pump. Its main purpose is to transfer the engine produced by the Nodding Donkey above in an up/down reciprocal movement. Fitting: The rest of the parts of the pump is called fitting and is, basically, small pieces designed to keep everything hold together in the right place. Most of these parts are designed to let the fluids pass uninterrupted. Filter: The job of the filter, as guessed, is to stop big parts of rock, rubber or any other garbage that might be loose in the well from going into the pump. There are several types of filters, being a common iron cylinder with enough holes in it to permit the entrance of the amount of fluid the pump needs the most commonly used. Explanation Of How It Works/ Is Used: Figure A: Components of Sucker Rod Pump ` A motor and gearbox supply power to turn the power shaft. There is a counterweight at the end of the crank. A pitman arm is attached to the crank and it moves upward when the crank moves counterclockwise. The Samson arms support the walking beam. The walking beam pivots and lowers or raises the plunger. The   rod attaches the plunger to the horsehead. The horsehead (not rigidly attached) allows the joint (where rod is attached) to move in a vertical path instead of following an arc. Every time the plunger rises, oil is pumped out through a spout. The pump consits of a four bar linkage is comprised of the crank, the pitman arm, the walking beam, and the ground. Figure B: Operational Detail of Sucker Rod Pump Here the plunger is shown at its lowest position. The pitman arm and the crank are in-line. The maximum pumping angle, denoted as theta in the calculations, is shown. L is the stroke length. After one stroke, the plunger moves upward by one stroke length and the walking beam pivots. The crank also rotates counter clockwise. At the end of the upstroke the pitman arm, the crank, and the walking beam are in-line. For name and location of parts, see Figure A: A motor supplies power to a gear box. A gearbox reduces the angular velocity and increases the torque relative to this input. As shown in Figure B, (the crank turns counter clockwise) and lifts the counterweight. Since the crank is connected to the walking beam via the pitman arm, the beam pivots and submerges the plunger. Figure B also shows the horsehead at its lowest position. This marks the end of the down stroke. Note that the crank and the pitman arm are in-line at this position. The upstroke raises the horsehead and the plunger, along with the fluid being pumped. The upstroke begins at the point shown in Figure B. At the end of the upstroke, all joints are in-line. This geometric constraint determines the length of the pitman arm. Figures C (a) and C (b) show the plunger and ball valves in more detail. These valves are opened by fluid flow alone. During the plungers upstroke the plunger valve or riding valve is closed. The column of liquid corresponding to the stroke will be lifted up to the surface while, relieved of the weight of the fluid, the pressure of the pay zone can then open the bottom valve or standing valve, thereby allowing the pump barrel to fill up with effluent. During the down stroke the valve of the hollow plunger opens and the standing valve closes, thereby preventing the fluid from returning into the pay zone and allowing the plunger to return freely to its initial point at the base of pump barrel. The pump is single acting and its theoretical output is equal to the volume generated by the plungers stroke and cross-section multiplied by the pumping rate, i.e. in a homogenous system: Q=S*N*A Where, Q=Flow rate. S=Stroke. N=Number of strokes per time unit. A=Area of the plunger. In practice following parameters are also involved: An efficiency factor A coefficient depending on the units that are use Figure C(a) TABLE OF VARIABLES THAT AFFECT SUCKER ROD STRING AND PUMPING UNIT LOADING Polished rod load Pumping speed Pump setting or depth Physical characteristics of the rod string Dynamic characteristics of the rod string Plunger diameter of the pump Specific gravity Pump intake pressure Polished rod acceleration pattern Mechanical friction Fluid friction Pump submergence Compressibility or gas interference Pumping unit inertia Pumping unit geometry Counterbalance Torque characteristics of prime mover Flow line pressure Innovativeness and Usefulness: Any liquid-producing reservoir will have a reservoir pressure: some level of energy or potential that will force fluid (liquid and/or gas) to areas of lower energy or potential. You can think of this much like the water pressure in your municipal water system. As soon as the pressure inside a production well is decreased below the reservoir pressure, the reservoir will act to fill the well back up, just like opening a valve on your water system. Depending on the depth of the reservoir (deeper results in higher pressure requirement) and density of the fluid (heavier mixture results in higher requirement), the reservoir may or may not have enough potential to push the fluid to the surface. Most oil production reservoirs have sufficient potential to produce oil and gas which are light naturally in the early phases of production. Eventually, as water which is heavier than oil and much heavier than gas encroaches into production and reservoir pressure decreases as the reservoir depletes, all wells will stop flowing naturally. At some point, most well operators will implement an artificial lift plan to continue and/or to increase production. In relative to US data sucker rod pumping is the most common method (85%); with gas lift second (10%), and then the electrical submersible and the hydraulic pumping about equal (2%) in usage. Plunger lift and several variations of all these processes are in limited use. The prominence of sucker rod pumping is due, in part, to the large number of shallow, low productivity wells in the Midwestern and western United States. Mainly sucker rod pumps are used for onshore areas. Sucker rod pumps are used primarily to draw oil from underground reservoirs. The mechanisms it employs however are found in a wide variety of machines. The four bar linkage can be found on door dampers, on automobile engines, and on devices such as the lazy tong. The Sterling engines also use a linkage similar to the one used by the pump. Current Status of Development: Every project requires an in depth study of the topic. Being in the starting phase of our project, currently we are going through as many books, journals and online material as we can. Collecting as much data as we can, we plan to go through an extensive study of sucker-rod pumps and artificial gas drive techniques, principles etc. Having a comprehensive knowledge of sucker-rod pumps is our first objective, after which we will think of ways in which we can apply practically. Current sources being referred:

Investigate the factors affecting the rate of Osmosis :: GCSE Biology Osmosis Coursework

Investigate the factors affecting the rate of Osmosis Planning Osmosis is the diffusion of water from a lower concentration of solute to a higher concentration of solute, through a partially permeable membrane. In a high concentration of water the amount of solute (e.g. sucrose) is low. This could be called a weak or dilute solution. In a low concentration of water the amount of solute is high. This could be called a strong or concentrated solution. When a partially permeable membrane divides two such solutions, the water will move from the area of high concentration to the area of low concentration until both sides are equal. In plant cells water flows through the cell wall and cell surface membrane into the vacuole from the outside. As a result, the cell swells up. It doesn't burst as the cell wall stops the cell expanding too much; at this point we say a cell is fully turgid. Aim The purpose of my investigation is to investigate the factors affecting the rate of Osmosis. The key factors I have found affect this are: Length - of membrane Temperature - of water Concentration - of solution The factor I am going to investigate is the concentration of the solution in which the potatoes are placed. By doing this I will have to control all other factors to ensure a fair test, these are; doing all the tests at room temperature to control the temperature as a higher temperature would mean diffusion would occur quicker. The mass and surface area of the potatoes at the beginning of the experiment are other controls I will need to monitor to ensure a fair test. The mass of the potato is a dependent variable; this means that it will be measured throughout the experiment. I will measure the mass in grams correct to 2d.p. The potato chip will be measured before it is put in the solution, and after. This will allow us to see whether osmosis has taken place, and to what extent. The volume of the solution that the potato chips are kept in must be fair. The must be totally covered in the solution, and the amount of solution will be kept the same because all the potato chips are the same size. The amount of solution I cover each chip in will be 20cm. Prediction I predict in my experiment that the higher the concentration of sugar in the solution, the smaller the potato chip will become. I predict this as the greater the concentration of water in the external solution, the greater the amount of water that enters the cell by