Monday, September 30, 2019

Homeschooling Is Bad

Why Homeschooling is Not Doing Children Justice Homeschooling is an option for your child if you do not want them in public or private schooling. Today’s society of parents will make that choice for the child, wither the child wants to or not. Many parents think that public schools are not educating their child enough so they resort to homeschooling. This would mean devoting your time as a parent by helping support them in learning and to make sure they will succeed with their education. The problem today is that many parents will work with their child for about a month and all of a sudden have no more time to educate them.In the beginning it is your family’s motivation and you want to make them proud, so you try your hardest. Homeschooling you have the choice of what you learn, or will learn, sometimes even your parent’s interests or morals as well. Homeschooling is one on one attention, and in most cases is bad since parents are the only teacher’s it is easier to just do their child’s work for them if they do not understand it. One on one attention is only good if you have a child that has special needs and needs more time learning.Also if your parent is your teacher most of the kids will find it easier to manipulate them with the schooling. Since homeschoolers stay at home for school, and are not being around other friends everyday they are known to be a little unsocial. This means you have very few friends, and with the few friends you do have, the others think you are weird since you do not attend â€Å"regular school†. The good thing about being homeschooled though is that you choose your own friends. Attending public school you do choose your own friends but often your friends with people for benefits as well.For example your friends with the bully, so they will not dare try to bully you. Most kids do not want their parents choosing their friends for them so it’s a good thing to be able to go to school and see them all throughout the day. Homeschooling does not have sports, extracurricular activities, lab, tests, semesters, or SAT/ACT studying. Sports are a good thing since most kids like to stay active, but in order to play that sport you must keep up your grades in order to do so, which helps kids keep up their grades since they want to play.Extracurricular activities are nice as well they help children make friends, spark your interests, and are fun. Labs are mostly for the science classes, but most kids enjoy them, and it also helps make learning fun. Homeschooling you hardly have any tests, but in public or private school you have a test at least once a month. Tests help the teacher know if the students understand the concept of if they still need more time to understand what it is. Homeschooling is not broken up into semesters or even quarters; the child works at his pace.This could be a good thing by the child getting ahead of the work and constantly on it, but in many cases t hat is not how it is, most kids will procrastinate and loose all motivation to do it, and many times their parents are unaware of this. Lastly a major concern for parents who home school is how they will do on their SAT test or ACT test since in public or private schools they study for that. This scares them that they will not get into college because they think their scores will be so low.This just depends on how your home school teacher is, and how motivated the student is, but for homeschoolers they have to work twice as hard to do better since they don’t have the 8:00 a. m. to 2:00 p. m. learning. Homeschooling can be helpful, but most parents do not help their child with the work, so they often do not finish and will resort to a G. E. D, end up in an educational school, or simply just drop out. Homeschooling clearly does not work for everybody; and in today’s society it won’t do our children justice.

Sunday, September 29, 2019

Nuclear Battery

The short and unpredictable nature of the conventional chemical batteries, along with the frequent replacements that they require, has created an acute need for a reliable, longer-lasting and rugged source of energy. Moreover Radars, spacecrafts, interstellar probes and other advanced communication devices require much larger power than that can be met by conventional energy sources. The solution to long term energy source is the nuclear powered batteries which have a life span of few decades and can pack in energy densities thousands of time greater than conventional battery sources.Hence, there is an urgent need to harvest enormous amount of energy released naturally by the tiny bits of radioactive material. Unlike conventional nuclear power generating devices, these batteries do not rely on the fission or fusion reactions and do not generate any radioactive material as by-product. They promise clean, safe, reliable and almost endless energy without any drop in its yield or efficie ncy during its entire life span-which runs up to minimum of 10 years. They are generally used as power sources in unmanned and unmaintained locations requiring energy for longer durations.Nuclear batteries are not only going to replace conventional batteries, chargers and adapters but also present innovative means of powering portable devices. The nuclear battery technology is geared up to make way into commonly used day to day product like cell phones, laptops, automobiles etc. Surely it is battery of future. INTRODUCTION In this day and age of miniaturization the size of electronic circuitry has been diminishing at a astonishingly dizzying pace but the batteries that power these devices are not keeping up with them.The world of tomorrow that the technology manifests will be a very small one and we will need smaller batteries to power it !! Be it our personal laptops or cell phones, batteries still occupy a significant portion of the volume. The reason being the batteries are still nothing more than cans of chemicals like they were two centuries ago. They have not undergone any significant change in their functionality since Italian physicist Alexandaro Volta demonstrated flow of lectric current between two conductors by alternating discs of zinc and copper with pieces of cardboard soaked in brine. Many systems ideally (especially those in remote locations) have to operate for long periods, and it is not always feasible to recharge or replace their batteries. Now, with technology ushering in new era of miniaturization where MEMS (Micro Electrical Mechanical System) are gaining widespread popularity and are increasingly being used for a multitude of applications, they lack a durable onboard power supply. Batteries are at a critical juncture here!!MEMS are finding increasing applications in everything from sensors in car that trigger an alarm to injectible drug delivery system to environment monitoring ‘Smart Dust’ but they lack a long lasting on-d evice power source. To work around this power block, researchers have found an intriguing way: by harvesting the huge amount of energy released by radioactive material. Although several sources of energy could be used to supply this needed power (solid, fossil fuel) by these MEMS based systems but nuclear batteries are fast becoming a popular option in terms of power density and lifetime.For example A tiny speck of radioisotope like nickel-63 can generate enough energy to power these MEMS for decades. These nuclear micro batteries have energy at densities at thousand times greater than the Lithium ion batteries. So with these miniature machines really hitting their stride, we’ll need smaller, reliable and longer lasting battery sources! To clear the common misconception, nuclear power sources are not miniature nuclear reactors and they do not involve any fission or fusion reactions.In these power sources we use specific isotopes which emit particles that are blocked by the la yer of dead skin that covers our bodies. They penetrate no more than 25 micrometers in most solids or liquids, so in a battery they could safely be contained by a simple plastic package! TechnologyEnergy Density (milliwatt-hour /milligram) Lithium ion in a chemical battery0. 3 Methanol in a fuel cell3 Tritium in a nuclear battery850 Polonium-210 in a nuclear battery57 000 Energy Content in Different Type of Batteries IT IS A STAGGERINGLY SMALL WORLD THAT IS BELOW,† Said physicist Richard P. Feynman in his visionary talk to the American Physical Society, when he envisioned the fabrication of micro- and nano devices and declared that one day the entire Encyclopaedia Britannica could be written on the head of a pin. Feynman’s vision has finally begun to manifest, thanks to ever more sophisticated microelectronics. Micro and nano scale machines are ushering a multibillion-dollar market as they are being incorporated in virtually every electronic devices.Among the trendsetti ng applications in this development are ultra dense memories capable of storing hundreds of gigabytes in a fingernail-size device, micromirrors for enhanced display and optical communications equipment, and highly selective RF filters to reduce cell phones size and improve the quality of calls. But, again, at very small scales, chemical batteries can’t provide enough power for these micro machines. As the size of such a battery is reduced, the amount of stored energy goes down exponentially.Reduction in each side of a cubic battery by a factor of 10 as the volume is reduced —and therefore the energy that can be stored— reduces by a factor of 1000. In fact, the sensors today which are no larger than a speck of dust require batteries which are as large as a shirt button!!!!! COMPARISION WITH OTHER WELL KNOWN ENERGY SOURCES FOR NANO DEVICES In a bid to power these nano devices, researchers are turning away from conventional fuels like hydrogen and hydrocarbons (pro pane, methane, gasoline and diesel) and are meddling with micro fuels that consume hydrogen to generate power like other conventional fuels.Many are also developing on- board combustion engines that consume hydrogen to generate energy much like an average automobile. But these approaches are facing many hurdles. The primary road block is relatively low energy densities of these mechanisms and other being the continuous need to supply the fuel and eliminate the by-products formed . In case of other liquid fuels the major challenge is to develop a packaging that will contain sufficient liquid fuel to power these devices and which can be scaled down to micro and nano sizes at the same time.The nuclear batteries that are being developed won’t require any refilling or recharging. and will last as long as the half-life of the radioactive source. And even though their efficiency in converting nuclear to electrical energy isn’t high—about 4 percent—the extremely high energy density of the radioactive materials makes it possible for these micro batteries to produce relatively significant amounts of power. For example, with 10 milligrams of polonium-210 (contained in about 1 cubic millimeter), a nuclear powered battery could produce 50 milliwatts of electric power for more than four months.With that level of power, it would be possible to run a simple microprocessor and a handful of sensors for four continuous months. Specific Power Density Of Leading Power Isotopes KEY ELEMENTS OF THE TECHNOLOGY Why not conventional Gamma Emitters The first lesson to be learned here is: What are Radioisotopes Radioisotopes are basically unstable atoms that spontaneously emit high-energy particles as they decay to a more stable state. Most radioisotopes emit Gamma rays (which are essentially high-energy X-rays that can penetrate most materials including human flesh).But radioisotopes used in nuclear battery emit Alpha particles (an aggregate of two protons an d two neutrons) and Beta particles (high-energy electrons) that can’t penetrate as deeply and therefore pose less risk. Another reason why Gamma Emitters are not considered for development of the nuclear battery is that they would require sufficient amount of shielding. The Alpha Emitters, on the other hand, have an advantage due to the short range of the Alpha particles. This short range allows increased efficiency and thus provides more design flexibility, assuming that a sufficient activity can be achieved.The half life of the isotopes must be high enough so that the useful life of the battery is sufficient for typical applications, and low enough to provide sufficient activity. In addition, the new isotope resulting after decay should be stable, or it should decay without emitting Gamma radiation. The nuclear powered batteries that are being developed contain1 to 10 millicuries of nickel-63 or tritium, whose beta particles have relatively low energy and can be blocked by a layer of 25 to 100 micrometers of plastic, metal, or semiconductor (they are even blocked by the thin dead-skin layer covering our bodies. ) ISOTOPERADIATION TYPEHALF LIFE Yr)MAX. ENERGY (keV)AVERAGE ENERGY H-3Beta12. 3 y18. 65. 7 Ni-63Beta100. 2 y66. 917. 4 Po-210Alpha138. 8 y530. 43- Commonly Used Isotopes NUCLEAR BATTERIES WHICH ARE CURRENTLY USED JUNCTION TYPE BATTERY This type of battery is very useful for long term applications in devices like space crafts,battle field sensors and nanoelectric sensors.. The device basically consists of a small quantity of Nickel-63 placed near an ordinary silicon p-n junction( hence the name)—a diode, basically. As the Nickel-63 decays it emits beta particles, which are high-energy electrons that spontaneously fly out of the radioisotope’s unstable nucleus.The emitted beta particles ionizes the diode’s atoms, creating paired electrons and holes that diffuse away from each other at the p-n junction. These separated electr ons and holes travel away from the junction, thereby producing the current. Why Ni-63 is used in Junction Battery? Nickel-63 is ideal for this application because its emitted beta particles travel a maximum of 21 ? m in silicon before disintegrating; if the particles had more energy, they would travel longer distances, thus escaping the battery. This battery has a capacity of producing about 3 nanowatts, using 0. millicurie of Nickel-63 , power which is more than sufficient for nano devices. LATEST DEVELOPMENTS CANTILEVER BATTERIES These new types of batteries generate more power than a typical junction battery. These devices operate like generators where the radioactive energy is first converted into mechanical energy and then into pulses of electrical energy. Even though these devices involve an intermediate phase,their efficiency remain unaffected- if anything they actually tap the kinetic energy of the emitted particles for conversion into mechanical energy and hence provide a m ore continous flow of energy than conventional junction battery.Figure 5 Beta particles move from radioactive source and accumulate at Copper plate leading to electrostatic force of attraction Why Thin Film RadioIsotope is used in Cantilever Batteries? This device primarily uses a thin film of radioisotope. On top of this film, a small rectangular piece of silicon is cantilevered, its free end able to move up and down. As the electrons move away from the radioactive source, they travel through the air gap and hit the cantilever, charging it negatively. The source, which is positively charged, then attracts the cantilever, bending it down .This mechanical energy is converted instantaneously into electrical energy. SELF RECIPROCATING SiN BATTERIES These batteries use low stress thin film of SiN. In this device a Wheatstone bridge is formed using four resistors. The purpose of using Wheatstone bridge is to measure the deflections. The output from a Wheatstone bridge is sent to an opera tional amplifier and the amplified signal is measured. A self-timed reciprocating movement is obtained between the film of radioisotope and the cantilever arm.As compared to a conventional thin film cantilevers they offer better efficiency as the RF signal conversion from mechanical signal is more streamlined and compact. OPTOEELCTRONIC BATTERIES An optoelectronic nuclear battery has been developed by the researchers of Kurchatov Institute of Moscow. The Beta emitter would power an excimer mixture ( argon and xenon) which would produce light to excite a photocell. The primary advantage of this battery is that precision electrodes are not required and most electrons contribute to battery’s power output. NANONUCLEAR BATTERIESAny with technology â€Å"nano† suffixed ushers in a debate. A generally accepted criterion for labelling nanotechnology given by Mihail C. Roco( Ph. D. , a National Science Foundation Chair on the Nanoscale Science Engineering and Technology Subcomm ittee (NSEC) of the National Science and Technology Committee (NSTC)) states â€Å"one dimension of about one to 100 nanometers, designed through a process that exhibits fundamental control over the physical and chemical attributes of molecular-scale structures, and the ability to combine to form larger structures. †These technologies for the nano- nuclear battery have same operational and structural micro nuclear battery except it’s done on a nano level. These batteries have better efficiencies as compared to micro-nuclear batteries and the path for the research of nuclear battery ends at such nano powered devices. CURRENT PLAYERS NASA GLENN RESEARCH CENTRE, CLEAVELAND The scientists at the Glenn Research Centre are working in collaboration with the researchers at RIT on a project to develop alpha voltaic batteries for miniature military devices for US Army with sensing and communication capabilities.This project will be of three years duration and will focus on use o f a radioisotope Americium, which is used in smoke detector, along with handful of semiconductor devices to convert alpha energy into usable electricity. The project will conclude with full manufacture of device and plans for commercial manufacture. ROCHESTER INSTITUTE OF TECHNOLOGY RESEARCH LABORATORY, NEWYORK A team of researchers at RIT led by Ryne Rafelle, Head of physics and Microsystems have obtained funds ranging around $1. 2 million dollars from DARPA (Defence Advanced Project Research Agency) to develop nuclear power supplies for military use.The researchers are planning on using an innovative nanomaterial (quantum dots) to protect the semiconductor used inside the battery from radiation damage. This will make the battery not only safer but also increase its life to unprecedented levels. KUSHATOV INSTITUTE, MOSCOW The technology for Optoelectric nuclear batteries was developed by a team of researchers at Kuchatov Institute. In a revolutionary development, they used Radioiso tope Strontium-90 and Technetium-99 as beta emitters suspended in gas or liquid which permits nearly lossless transmission of beta energy. PRIVATE PLAYERS (QYNERGY CORPORATION, ALPLA V INC. WIDETRONIX ETC. ) These are leading private players company harvesting nuclear energy for the purpose of providing cutting edge energy and power solution that are not provided by current battery and storage system. Using their proprietary technologies they have developed high density power cell using the energy generated by radioisotopes. ECONOMIC POTENTIAL SPACE APPLICATIONS- SATELLITE AND INTERSTELLAR PROBE Radio isotropic Thermoelectric Generator(RTGs) are nuclear batteries which consists of stacks of thermocouples which convert the thermal energy obtained from the decay of radioisotope into usable electrical energy.They have emerged as the most popular power sources for the unmanned and unmaintained locations requiring power less than few hundred watts for durations which are too long for con ventional fuel cells and where solar panels are not feasible. RTGs are used as power sources in the satellites, space probe vehicles by NASA and in various unmanned remote locations, like a series of lighthouses built by the USSR in the Arctic Circle. Systems for Nuclear Auxiliary Power (SNAP) units which comprise of handful of RTGs are used especially for probes that travel far enough from the Sun that solar panels are no longer viable.Pioneer 10, Pioneer 11, Voyager 1, Galileo, Ulysses, Cassini and New Horizons used RTGs to meet their power requirements. Also, RTGs were used to power the two Viking landers and for the scientific experiments left on the Moon by the crews of Apollo 12. RTG also used on interstellar precursor missions and interstellar probes. One such example is the Innovative Interstellar Explorer (2003-current) proposal from NASA which will be using RTG Am-241 This could support mission extensions up to 1000 years. UNDERSEA APPLICATIONS- DEEP SEA SENSORSThe recent tsunami, earthquake and other under water phenomena have increased the demand for underwater sensors which can withstand such extreme conditions. These sensors are integrated with nuclear batteries which can work for longer durations in inaccessible places under crude situations. MEDICAL APPLICATIONS- NUCLEAR PACEMAKERS In early days, pacemakers used were powered with mercury and zinc batteries which could run for three years. Most often however, such mercury battery would fail in 20 months requiring the patient to undergo another implant for the replacement of the device.Nuclear Batteries are used extensively in the pacing industry to prolong the longevity of the implanted device. Pacemakers, implanted with nuclear batteries, offer young patients the chance to go through their entire lifetime with just a single implant. MOBILE DEVICES- CELLPHONES & LAPTOPS Xcell-N is a nuclear powered laptop battery that provides between seven and eight thousand times battery life as compared to a normal laptop battery- thus any laptop can be kept on for five continous years without having to charge it.Xcell- N is in continuous working state since the past eight months and neither has been turned off nor has been plugged into electrical power. Most cell phones use RF filters for frequency selection which occupy a large part of the volume. Researchers are currently developing MEMS based RF filters which provides not only better frequency selectivity (thus better quality of calls) but also reduced sizes. These MEMS filters, however, may require relatively high dc voltages, and drawing it from the main battery would require complicate electronics.Instead, a nuclear powered battery designed to generate the required voltage—in the range of 10 to 100 volts—could be used to juice up the filter directly and more efficiently. AUTOMOBILES Although it is in initial stages of development but it is expected that nuclear powered batteries will soon replace the weary chemical batteries. This implies that running short of fuel or time will be things of past. Fox Valley Auto Electric Association has already started working on the ways to implement this. CHALLENGESThough there are many merits the nuclear battery there are few challenges too, which needs to be overcome to make it realty, in the immediate future. SAFETY Since nuclear powered batteries involve the use of small amounts of radiation and radioactive materials, it is necessary that they must comply with current Radiation Protection Standards which are based on the Linear Non-Threshold model (LNT) . This model assumes that any amount of radiation exposure, no matter how small, will have a detrimental effect on health.The external dose associated with the radioisotopes used in these batteries is zero, because an alpha particle needs to have an energy of more than 7. 5 MeV to penetrate the protective layer of the skin (0. 07 mm think), and a ? particle needs to have an energy of more than 70 keV. Sin ce radio isotopes in nuclear batteries have energies lower than these they are unable to penetrate the skin. INHALATION INGESTION DOSE LIMIT [mrem/d]44. 575. 479 Dose Equivalent [mrem/d]No. of batteries to be inhaled to reach the limitDose Equivalent [mrem/d]No. of batteries to be swallowed to reach the limit H32. 418. 0346158 Ni645. 697. 081367Radiation Levels After Ingestion or Inhalation Of 5 µCi of Ni or H Nuclear Battery In fact, radioisotopes have been used for decades in commercial applications. Many smoke detectors contain 1 to 5 microcuries of Americium-241, used to ionize the air between a pair of parallel plates. And some emergency exit signs in public buildings, schools, and auditoriums that have to remain visible during power outages contain 8 to 10 curies of tritium, whose emitted electrons excite phosphor atoms, illuminating the sign. The amount of radioactive material in the nuclear batteries falls between that in a smoke detector and in an exit sign.And for whatev er amount, any commercial application of such nuclear powered batteries will have to comply with all the established safety measures (including design of safe packaging) and follow regulations about handling and disposing of the device. COST As it is the case with the most ground breaking technology , the initial cost of production is quite high. But as the product goes for mass production the cost goes down. The major challenge lies in finding sources of inexpensive radioisotopes that can be efficiently integrated into the electronic devices.For example 1 millicurie of Ni-63 costs around $25. But the researchers have come up with a potentially cheaper alternative tritium which is produced by some nuclear reactors as a by product and costs few cents( for 1 millicurie). WASTE DISPOSAL The environmental impact of disposing of the nuclear devices once their useful life has ended, as well as the associated costs are minimal. Since after three half-lives the activity of the isotope decay s to about 10% of the original activity, the nuclear powered batteries would be below background radiation level by that time. SOCIAL ACCEPTANCEThe nuclear technology has lost its credibility as the world has seen enough nuclear disasters. Thus acceptance for the nuclear technology will be very hard to come by. However the immense potential of this technology will soon overpower this initial resistance. CONCLUSION & WAY FORWARD Clearly the current state of research is making it harder to deny that chemical batteries will be replaced by nuclear powered batteries- and soon. Nuclear Batteries present a logical solution to the burgeoning need for a safe, reliable, compact, lightweight, longer lasting and self contained power supply.They not only protect our declining natural resources but also serve to make our traditional energy sources redundant. As the energy associated with the radioactive materials is much more than the conventional sources and by far the highest without any waste generation, the world can be transformed into a new one without green houses gases and its associated risks. Scientists have overcome a major stumbling block to make mass production of these batteries a viable and hugely profitable option. The system we have developed is mechanically simple, potentially leading to more compact, more reliable and less expensive systems. This was an attempt at something that seemed viable. â€Å", said Mark Prelas , Director of Research at University of Wisconsin’s Nuclear Science and Engineering Institute. Recent breakthroughs, at University of Missouri where the researchers have developed a economically feasible energy conversion system that uses safe isotopes to generate high-grade energy, only prove that these MEMS Marvels are going to be very successful in near future.Success of few similar small projects will give sufficient learning to make this technology big very soon. REFERENCES 1. â€Å"Nuclear and Radiochemistry† , Gerhardt Friedlander and Joseph W. Kennedy 2. Technolyreview. com 3. Powerpaper. com 4. http://ieeexplore. ieee. org/stamp/stamp. jsp? arnumber=01330808 5. http://en. wikipedia. org/wiki/Atomic_battery 6. http://www. physorg. com/news174139641. html 7. http://www. scribd. com/doc/8929973/Nuclear-Battery

Saturday, September 28, 2019

Reflective your strength and weakness in administration Essay

Reflective your strength and weakness in administration - Essay Example Third, strategic direction is crucial and having a vision and mission is what operationally makes a leader succeed or fail. Strategy weighs heavy on the â€Å"how† and â€Å"why† and less so on the â€Å"where† hence it is important to have a mission and a vision that is in line with each other. Corollary to this, after planning and goal setting, administrators get things done as plans and goals are not much use if they do not materialize. Fourth and personally the most important for me, leaders naturally need to influence others and have friends that they have purposely nurtured. Admittedly, every leader requires great people around them who when challenged, take up the call, and make the most out of it. One of my administrative strengths includes micromanaging, not just people, but goals as well with a particular refinement for detail. I remember doing thus when a professor had to inspect a certain project of ours within a few weeks time. As a large project of ours with minimal team members working on it, it had a number of problem areas that were likely to receive poor grades, in particular design and its relation to the overall goal of the project. With a very short timeframe available, I would be unable to make substantial changes I have in view for the longer term. For example, developing a more strategic and novel way of communicating with other members during the planning process and taking the pressure off the acting committee head of design, currently struggling, by recruiting someone with more experience into the post will have to be postponed. I knew then that I had to focus on ensuring that my project showed itself from the best perspective in front of our professors. I had work hard with my other group members, having some sleepless nights, to ensure everything was in place- logistics have been taken care of, audiences have been ushered in well, while all

Friday, September 27, 2019

Summary of research article Essay Example | Topics and Well Written Essays - 1000 words

Summary of research article - Essay Example There is dire need to investigate the widespread and misleading conceptions regarding the adolescent life. Talai has carried out a research along with Kelvin Barclay and Kathleen Foley at the Park Royal School and the Royal Haven School in Quebec. The research was meant to study the nature and significance of friendship in the life of an adolescent as it is in the Western culture. Amit-Talai has emphasized that the friendship’s nature in the life of an adolescent reflects in his/her friendship as an adult, which adds to its value. Amit-Talai asserts that various social and psychological factors that exist in the life of an adolescent influence the nature of friendship he/she enters into. It is quite common for the students to encounter a lot of changes when they are in the phase of secondary school. The onset of puberty inculcates drastic changes in the nature and attitude of both genders, on the physiological part. On the sociological part, adolescents assume much more respon sibilities in school and home and also, in the workplace occasionally. The adolescents also experience a shift in their relationships with their peers when they enter their puberty and gain the sense of sexuality. A vast majority of students feel a change in their learning tendency and the environment as well. Many families change their residence as the children move from childhood to adolescence. The change of location causes the adolescents to change their schools. However, it must be noted that the physiological and sociological changes brought about by the adolescence are not the only factors that play a decisive role in determining the structure of an adolescent friendship. After conducting the research, Amit-Talai found that the rules in both the Quebec secondary schools that were involved in the study were too strict to allow the students time to socialize in an informal manner in their private lives. Such a lack of time to promote intimate informal relationships in the life of an adolescent significantly declines his/her tendency to maintain a healthy friendship, though the lack of time does not completely eradicate the friendship at all. According to Paine (cited in Amit-Talai 235), friendship is a â€Å"dyadic, confidential and personal relationship†. There is a category of friends called as â€Å"just friends† that are indeed, the â€Å"â€Å"purest† form of friendships, voluntary and operating outside of any specific context, with no structural or cultural supports†. (Fischer 108 cited in Amit-Talai 235). However, the secondary students studied by Amit-Talai in her research express a blurred relationship of friendship in the sociological context. It is commonly thought of adolescents that their life is full of leisure as compared to that of the adults. Amit-Talai says that there is no doubt in the fact that many adolescents do not work and only study, yet the school and related activities like homework consume a major po rtion of their time. â€Å"Adolescents who are not at work do not necessarily have more â€Å"free time† as a result† (Amit-Talai 237). Amit-Talai has also noticed a manifold increase in the number of working students in the secondary schools in Quebec since early 1975. In order to entertain their social concerns, many secondary school students work along with their studies. Such social concerns include but are not limited to shopping, outing

Thursday, September 26, 2019

Case study Example | Topics and Well Written Essays - 3500 words

Case Study Example The lost service charge provisions are not protected by TUPE because they are deemed to be independent contracts that have been outsourced. They are only protected when the service entails the provision of one whole activity such as catering, and when the completion of the job is credited to the company, such as the entity has no options of other service providers. The basic principle of UK law is the sale or transfer of an entity automatically brings all the contracts the entity had with the employees, and the employees have a choice on whether to continue with the new entity or resign. This makes a lot of legal sense because of the nature of a contract, which is an agreement between two parties regarding a particular subject. A contract is reached upon after considering many factors, bargaining and the future circumstance. Therefore, imposing a contract upon a secondary entity may not be fair. However, Transfer of Undertakings (Protection of Employment) Regulations 2006 (TUPE) law is lenient on employees and protects their rights but this protection is not automatic. The law has to consider the circumstances of each case to see whether the employees qualify for a protection or not. Therefore, this question applies the Transfer of Undertakings (Protection of Employment) law because it touches on the transfer of an entity and also on organized group of employees. In the case of Argyll Coastal Services v Sterling and others UKEATS/0012/11/BI, the question that came up for consideration by the court was the definition of the word organized group of employees. The court contented that an organized group of employees was a particular set of employees who were less than the entire workforce of the entity concerned and who worked together as a team for the accomplishment of a particular purpose. However, on appeal, the court contended that the group was not an

Wednesday, September 25, 2019

Fan fiction story Essay Example | Topics and Well Written Essays - 1000 words

Fan fiction story - Essay Example Since time immemorial, it has always been the fascination of mankind to see an intelligent being from another planet. Yet, aside from rumors that extra territestrials had been caught or found, nothing was ever proven that almost all scientist abandoned the idea of finding one, except for Dr. Nogrady, the eccentric scientist of NASA. So Professor X send a signal to the goldilocks planet Gliese 581 g hoping to prove that an intelligent being exists out there. Nobody took Dr. Nogrady effort seriously dismissing that the Professor has been chasing a pipe dream of looking for something that does not exist. A wasted genius they say. But the signal was still sent into that goldilock region of the universe. Then suddenly, a response. Dr. Nogradywas ecstatic, he himself cannot believe that his transmission were returned. For the first time in the history of science, a contact was made with an intelligent creature light years away. Through the help of a team of expert of linguists, Dr. Nogrady team were able to understand the language of the alien. The creature’s name was Apex. He was a male and an astronaut from planet Gliese 581 g who just like Dr. Nogrady, has also been scouring through the stars for a possible contact with an intelligent being. ... Earth does not have the technology yet to visit Planet Gliese 581 g so it was agreed that it will be Apex’s team who would be visiting the Earth. According to Dr. Nogrady’s estimate, the aliens will be arriving on earth six months from now. Necessary preparations were made for the arrival of Apex’s party. All honors were conferred to Dr. Nogrady who rose to sudden popularity due to his recent contact with an extra terrestrial being. He also received unlimited funding from the United Nation’s for his research and was made in-charge of the receiving party since it was only Professor X who was privy in communicating with Apex’s party. The initial contact will be made in the vast desert of Sahara desert in Africa since it was anticipated that Apex’s ship will be huge since it has to travel in space. The day arrived. Apex made an excited announcement that his ship has already landed in the designated landing field which Dr. Nogrady prepared for Ap ex’s arrival. Yet Dr. Nogrady cannot find the ship. He asked for confirmation from Apex who replied they have landed as confirmed by the engineer of Dr. Nogrady’s triangulation that they are already in the designated landing field. But they cannot be found. Suddenly the communication made a blip with Apex’s cry, why are you attacking us? We came in good faith and friendship! Dr. Nogrady replied, attack what? It’s getting dark, why are you sending your monsters to attack us! A series of cry was heard from the radio of Apex, yet nothing can be found in the landing field. Until finally, a distress call was heard from com of Apex, with a call â€Å"this is Captain Apex of Ship Amegdala on exploration to Earth, we are under attack and cannot survive, please send in rescue immediately!

Tuesday, September 24, 2019

Engineering Disasters Essay Example | Topics and Well Written Essays - 750 words

Engineering Disasters - Essay Example Measures Undertaken to Prevent Future Oil spills ExxonMobil made several changes thereafter to prevent oil spills in future. They are: changed oil tanker routes; strengthening training programs for captains and pilots; alcohol and drug testing procedures for sensitive positions; periodic examination of facilities and transport vessels; improved technology for vessel navigation. The system was deployed in other parts of the world to see that incident of this kind does not happen again (The Valdez Oil Spill 2012). Ethical Considerations in Engineering Catalano (2011) argues that Engineering has been a profession that keeps ethical dimension at the forefront; however, in view of various oil spills that has happened in recent years across the globe, author doubts that ethical responsibilities have not paced with scientific advancements. Author categorically stress that the engineers in this world now must own ethical responsibilities not only to safeguard all of its inhabitants but also our Mother Earth so as to have a secured and safe future for all of us. False Nuclear Alarms False Nuclear Alarms can become a cause of nuclear holocaust and if it happens so then it will be termed as perhaps the biggest engineering disasters of all. Sennott (2001) argues that as per the US government, 1152 false alarms of varying seriousness occurred between 1977 and 1984. This was due to some abnormal information given by warning sensors. The false signaling happens due to various reasons. Satellites can detect the infrared energy that emits from anywhere on the earth's surface. During gulf war, Iraqi Scud missiles were also detected by this satellite system. The author emphasizes that false alarm is in itself not a cause of much concern because they are quite routine now; however, the major threat comes from a second false alarm before the first one has been resolved. Forden et al. (2000) argue that first of the false warning of nuclear attack was noticed on November 9, 1979 by the US system that massive Soviet nuclear strike is on its way. The US defense system was virtu ally making their mind to counter attack through their ballistic missiles. In fact, no attack was initiated by soviet Russia and mistake was discovered soon and global nuclear war was thus, averted. In another incident, on January 25, 1995 Russian radars detected a US Trident nuclear missile. Again, for some reason counter attack was not launched from