The Time To Choose Is Now free essay sample

# 8230 ; Essay, Research Paper A fatigued traveller approaches a glade in a wood where a disguised adult female stands. # 8220 ; Where am I? # 8221 ; he asks. Silence. The adult female, alternatively, counters with a inquiry of her ain. # 8220 ; I greet you at the Crossroads of Time, my friend. Or is it foe? Would you like to experience my love or to experience my wrath? It is but your choice. # 8221 ; # 8220 ; I # 8212 ; make non cognize you, but # 8212 ; # 8221 ; # 8220 ; Answer right! # 8221 ; # 8220 ; I hope to be a friend, although # 8212 ; # 8221 ; # 8220 ; Then you shall larn much, # 8221 ; she interrupted. Out of her cloak emerged a slim, delicate manus, gesticulating upwards as if keeping a delicate object. An image projected out of that ghost-like thenar, demoing three waies. Although muffled, the figure spoke: # 8220 ; Three waies lie in the journey of life # 8230 ; three really different paths. # 8221 ; The gloss focused on the left-hand transition. # 8220 ; To the left you see a waste land where merely the Devil dares to dwell. We will write a custom essay sample on The Time To Choose Is Now or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page # 8221 ; As she spoke, a column of white fire erupted from the dead Earth. # 8220 ; The class on the right shows an ageless Eden filled with olympian phenomena raising vitamin D merely by the holy God.† Multi-colored animals glide through the clear sky. She paused, gazing at the in-between way. Filled with unsure fright, she tightened her regard upon the projection. Finally, the adult female spoke. # 8220 ; Towards the in-between lies a way, cloaked with intangible woods, where merely the bravest enter. # 8221 ; She stared straight into the alien # 8217 ; s eyes before go oning. # 8220 ; Those who go in neer come out. # 8221 ; The adult female tilted her caput somewhat, leting a little shaft of visible radiation to perforate the at hand darkness. Looking to read his head, she repeated the inquiry he mentally asked. # 8220 ; Why? Because of an indestructible danger? Or of a pleasance so great that it gives no leave. That is for you, vagabond, to happen out. # 8221 ; The cryptic figure held his eyes and began one time more, # 8220 ; Now I ask you, alien. Which way would be yours? # 8221 ; At those last words her dark gloss disappeared go forthing the awestruck adult male standing in forepart of three transitions. He shivered and glanced at the adult female, happening that she was gone and simply hearing her grim voice. # 8220 ; Which way would be yours? # 8221 ; the forest echoed.

Hostile Environment Essay Example

Hostile Environment Essay Example Hostile Environment Essay Hostile Environment Essay Hostile Environment Harassment occurs when unwanted sexual conduct interferes with a persons work. This interference doesnt necessarily have to be of a material nature which can be valued in monetary terms but it can be anything which makes the work environment intimidating. Hostile Environment Harassment is also often associated with verbal misconduct which embarrasses or humiliates a victim, which in turn could lead to lower job satisfaction and performance. (Barry Shaw, 1998) Quid-Pro-Quo Harassment is when a person uses his authority in the workplace to seek sexual favors from other employees. In this case rewards and punishments are associated with the compliance the victim (Barry Shaw, 1998). This again leads to a very negative outlook towards job motivation because here the way to the top is not portrayed to be hard work but rather the sexual favors one can do for their supervisors or managers. Besides lower job satisfaction and reduced productivity, sexual harassment hampers the target mentally as well. They lose their self-esteem and blame themselves for what has happened to them (Ackroyd Thompson, 1994). In Pakistan, considering the patriarchal social structure where most companies do not even have policies regarding sexual harassment and some which do, are not implemented or observed properly, women do not even come forward with their problems. They feel shame for what has happened, and might fear seclusion from the society which blames the woman for what has happened and ostracizes her. There is always the matter of honor which is one of the leading causes for suicide in Pakistan. The biggest problem in our society is that we dont accept the fact that sexual harassment exists. Pakistani society, being an Islamic society should be more concerned about this because of the rights and the status Islam gives to women. In Islam women and men are given similar rights and duties. Women are allowed to own property, earn money and to express their opinion. What our society needs is for companies to have strict policies regarding sexual harassment. Sexual harassment should be clearly defined and the ways to proceed with a complaint should also be outlined. Most importantly the policy should also respect the privacy of the victim so that people dont have too much trouble coming forward with their complaints. Mentorship in organizations A mentor is an experienced or more senior person in the organization who gives a junior person special attention, such as giving advice and creating opportunities to assist him or her during the early stages of his or her career (Johns Saks, 1996). From an organizations point of view mentoring makes sure that the company culture and beliefs are transferred from one generation of employees to the next. It provides new employees with the information he needs to know so as to excel within the organization and in the process be an important asset to the company. At the same time she/he learns how to deal with his superiors, peers, etc (Vinnicombe Colwill, 1995). Proper mentorship has been linked to lowered levels of job stress (Johns Saks, 1996). Once again this poses a problem for women because most of the senior people in the organization are men. The problem arises as most of the male mentors are inexperienced when it comes to dealing with women. The problems they faced as they moved up through the organizations hierarchy might be quite different from the ones a woman would face thus the mentors would not be able to provide much help. When mentors undertake an apprentice under their mentorship its usually because they can reflect back to the time they had started work in this organization and they see their own past in the new young employee. So if the new employee is a woman, it is difficult for the mentors to identify themselves with the new employee. (Vinnicombe Colwill, 1995) Besides this whenever there is a lot of interaction between a senior man and a young new female employee people start perceiving their relationship as having a sexual nature (Johns Saks, 1996). This hinders the development of a productive working relationship which could benefit the organization and at the same time provide promotion opportunities for the woman worker. Another problem which is quite prevalent in our society is the father-daughter relationship. Females are always considered as Daddys little girl (Vinnicombe Colwill, 1995). They are always pampered and not made independent as is the case with males. This problem creeps up into organizations as well when senior male mentors consider their young female apprentices as their daughters and continue to pamper them and not really make them independent enough to handle the work without the presence of the mentor himself. It is often heard that behind the success of every man, there is a woman. This belief has led to an inherent bias in peoples mind which makes them think that theres a hard working man with a woman assisting him. This is labeled as the the assistant-to effect (Vinnicombe Colwill, 1995). Here if there is a male mentor and a female apprentice, the roles are often seen shifting from a mentor-apprentice relationship to a worker-helper relationship where the apprentice does learn the work, but once again not well enough to take over the work of the mentor when hes no longer there. According to a study it has been proved that mentoring plays a major role in career development of men and women both. Studies have shown that 61% women who have made it to top management positions have had a mentor somewhere along their career path and out of these 99% admit that their mentor played an important role in their progress through the organizational hierarchy. (Johns Saks, 1996) Conclusion Although the participation rate of women in the labor force has increased over the years. Being only 43% in 1970 and rising to 61% in 2003 (Bureau of Labor Statistics, Fig. 2). The working conditions or the workplace still has to undergo some major changes before they are completely free of gender biased thinking. For the women to be on the same level as men in the workplace they will have to move on from the expressive roles that the functionalists argue as an important function of the society. According to Marx and the conflict perspective, it is the constant struggle between the proletariat and the bourgeois, in this case between the women and the men accordingly, which will lead to the necessary reforms being made in the workplace.

Why are passwords and other good information security technologies Essay

Why are passwords and other good information security technologies compromised by the people who use them What can we do to improve their contribution to information security - Essay Example Password attacks can be implemented by means of numerous diverse techniques, involving Trojan horse programs, brute-force attacks, packet sniffers and IP spoofing. While IP spoofing and packet sniffers are able to produce user accounts and passwords, password harasses usually refer to frequent efforts to recognize an user account and password; these repeated cracks are called brute-force attacks (Johnson, 2007). By means of the term information security we recognize an intellect of possible risks implicated in the sensitivity of the information. With information technologies coming into the view the image broadens its limits. At this instant it turns out to be essential to recognize the nature of hazard involved and next there should be a well-formulated description of the term safety itself (Rantasaari et al, 2003). In broad sense, there are necessarily three sides of the term security. Primarily, it shows the accessibility of assets, though material or virtual, that is beneath possession of an entity or grouping. Secondly, there is a sense of privacy involved in this practice in view to these assets, in this case data, dealings and communication. Third and as a final point, there should be an awareness of truthfulness which allows the user or users to consider in the context of security (Goldwasser et al, 2007). Here I will explain how passwords and other good information security technologies compromised by the people who use them. The first factor that usually causes the security leak is the sharing of the password by the people with anyone for any purpose. Passwords should not be shared with anyone because it can be casuse of information and data theaft and there is danger of accessing another individual’s protected resources, accounts and personal records. Anothre reason is not changing the passwords periodically. If we do not

Computer Forensics in Biology Research Paper Example | Topics and Well Written Essays - 1250 words

Computer Forensics in Biology - Research Paper Example Application A structured investigation is carried out to sort out what exactly happened to the computer, when it happened, how it happened, and who did it. This is exactly like solving a murder case and performing postmortem. The operator does not know that the evident information is transparently being created and stored by the computer’s operating system, which can only be extracted through computer forensics software tools and techniques. The crimes include misuse of computer systems, attack on computer systems, using a computer system to work against another system, failure of a computer system, and the like. Though, internet identity theft has made people uncertain about shopping and selling online, checking their bank statements online, visiting auction websites, or entering into business contracts or transactions; however, computer forensics has played its part in helping law enforcement agencies in gathering digital evidence and identifying stolen identities as well as the criminals involved. Computer forensics security solutions focus not only on recovery but also on prevention of security threats in order to provide security solutions that are quicker and cheaper than the conventional techniques. These solutions include intrusion detection system (IDS), internet security system, biometric security system, net privacy system, firewall set-ups, network disaster security system, identity theft prevention system, identity management security system, and so on (Vacca 146). Basic Scientific Principles Involved It is important for computer forensic investigators to follow a structured approach to solving computer and internet-based identity theft cases. Computer crime involving ID theft can be grouped as physical security breaches, personnel security breaches, communications and data security breaches, and operations security breaches. A detailed investigation of the case requires that every security breach is analyzed independently to get a more syst ematic approach towards case solving. The digital examination of ID theft cases requires great expertise at the investigator’s end. The evidence or data that is collected is the valuable asset and has to be dealt with sensitivity, as it will help in deciding the specifications of the crime. Digital data is so delicate that it can be altered with one mistaken tap on the keyboard or one inadvertent press of a key. The forensic investigator will have to use some offline techniques in addition to online techniques. Although offline techniques are not the responsibility of a forensic investigator, but of course, he can use them to help himself toward finding the evidential data. He will have to look for any counterfeit documents, fake checks and bogus bank statements in black and white, in addition to looking for digital evidence residing inside the fraudster’s computer system.  

Studying The Future Prospective Of Nanotechnology Computer Science Essay

Studying The Future Prospective Of Nanotechnology Computer Science Essay This paper explores the present impact of nanotechnology on the consumer market. It situates the technical aspects of nanotechnology and describes some early successes of nanomaterials embraced. It includes a description of technology developments in the area of automotive industry, biomedicine, household appliances, nanowires, nanotubes, nanobubble, nanochips, healthcare and numerous other nanostructured materials with a brief description of the number of research and development activities that are in various stages of testing and qualification. II. INTRODUCTION Nanotechnology is derived from the combination of two words Nano and Technology. Nano means very small or miniature. So, Nanotechnology is the technology in miniature form. It is the combination of Bio- technology, Chemistry, Physics and Bio-informatics, et Nanotechnology is a generic term used to describe the applications that work with matter so small that it exists in the molecular and atomic realm. As the name indicates, the fundamental unit in any nanotechnology system is a nanometer, nm, which is one billionth part of a meter. Nanotechnology research shows that at such micro level, the physical, chemical and biological properties of materials are different from what they were at large scale. Nanotechnology originated in India around 16 years back. This new sphere of scientific innovation has a broader scope. Several Indian institutes have introduced degree courses in Nanotechnology at both the UG and PG levels. The areas covered in the Nanotech are Food and Beverage, Bio- Techn ology, Forensic Sciences, Genetics, Space Research, Environment industry, Medicine, Agriculture and Teaching. The fundamental idea is to harness these altered and often improved properties to develop materials, devices and systems that are superior to the existing products. For instance, breaking a material down into nanoparticles allows it to be rebuilt atom by atom, often improving material strength and decreasing weight and dimensions. Based on this concept, researchers have been able to develop a myriad of nanomaterials with amazing properties. The Council of Scientific and Industrial Research, also known as CSIR has set up 38 laboratories in India dedicated to research in Nanotechnology. This technology will be used in diagnostic kits, improved water filters and sensors and drug delivery. The research is being conducted on using it to reduce pollution emitted by the vehicles .Looking at the progressive prospects of Nanotechnology in India, Nanobiosym Inc., a US-based leading nanotechnology firm is planning to set up Indias first integrated nanotechnology and biomedicine technology park in Himachal Pradesh. Nanotechnology has certainly acquired. In the long term scenario, nanotechnology promises to make revolutionary advances in a variety of fields. Possible uses of nanomaterials may include the cleaning of heavily polluted sites, more effective diagnosis and treatment of cancer, cleaner manufacturing methods and much smaller and more powerful computers. III CORE CHAPTERS A. History The first use of the concepts found in nano-technology (but pre-dating use of that name) was in Theres Plenty of Room at the Bottom, a talk given by physicist Richard Feynman at an American Physical Society meeting at Caltech on December 29, 1959. Feynman described a process by which the ability to manipulate individual atoms and molecules might be developed, using one set of precise tools to build and operate another proportionally smaller set, and so on down to the needed scale. In the course of this, he noted, scaling issues would arise from the changing magnitude of various physical phenomena: gravity would become less important, surface tension and vander waals attraction would become increasingly more significant, etc. This basic idea appeared plausible, and exponential assembly enhances it with parallelism to produce a useful quantity of end products. The term nanotechnology was defined by Tokyo Science University Professor Norio Taniguchi in a 1974 paper as follows Nano-technology mainly consists of the processing of, separation, consolidation, and deformation of materials by one atom or by one molecule. In the 1980s the basic idea of this definition was explored in much more depth by Dr. K. Eric Drexler, who promoted the technological significance of nano-scale phenomena and devices through speeches and the books Engines of Creation: The Coming Era of Nanotechnology (1986) and Nanosystems: Molecular Machinery, Manufacturing, and Computation, and so the term acquired its current sense. Engines of Creation: The Coming Era of Nanotechnology is considered the first book on the topic of nanotechnology. Nanotechnology and nanoscience got started in the early 1980s with two major developments; the birth of cluster science and the invention of the scanning tunneling microscope (STM). This development led to the discovery of fullerenes i n 1985 and carbon nanotubes a few years later. In another development, the synthesis and properties of semiconductor nanocrystals was studied; this led to a fast increasing number of metal and metal oxide nanoparticles and quantum dots. The atomic force microscope (AFM or SFM) was invented six years after the STM was invented. In 2000, the United States National Nanotechnology Initiative was founded to coordinate Federal nanotechnology research and development and is evaluated. http://upload.wikimedia.org/wikipedia/commons/thumb/4/41/C60a.png/175px-C60a.png Fig.1. Buckminsterfullerene C60, also known as the buckyball, is a representative member of the carbon structures known as fullerenes and is a major subject of research in nanotechnology. B. Current Research Nanomaterials field includes subfields which develop or study materials having unique properties arising from their nanoscale dimensions. Interface and colloid science has given rise to many materials which may be useful in nanotechnology, such as carbon nanotubes and other fullerenes, and various nanoparticles and nanorods. Nanomaterials with fast ion transport are related also to nanoionics and nanoelectronics. Nanoscale materials can also be used for bulk applications; most present commercial applications of nanotechnology are of this flavor. Progress has been made in using these materials for medical applications; see Nanomedicine. Nanoscale materials are sometimes used in solar cells which combats the cost of traditional Silicon solar cell. Development of applications incorporating semiconductor nanoparticles to be used in the next generation of products, such as display technology, lighting, solar cells and biological imaging; see quantum dots. 1) Top-down Approaches: These seek to create smaller devices by using larger ones to direct their assembly.Many technologies that descended from conventional solid-state silicon methods for fabricating microprocessors are now capable of creating features smaller than 100  nm, falling under the definition of nanotechnology. Giant magnetoresistance-based hard drives already on the market fit this description, as do atomic layer deposition 2) Bottom-up Approaches: These seek to arrange smaller components into more complex assemblies.DNA nanotechnology utilizes the specificity of Watson-Crick basepairing to construct well-defined structures out of DNA and other nucleic acids. Approaches from the field of classical chemical synthesis also aim at designing molecules with well-defined shape (e.g. bis -peptides). More generally, molecular self-assembly seeks to use concepts of supramolecular chemistry, and molecular recognitionin particular, to cause single-molecule components to automatically arrange themselves into some useful conformation. Peter Grà ¼nberg and Albert Fert received the Nobel Prize in Physics in 2007 for their discovery of Giant magnetoresistance and contributions to the field of spintronics. Solid-state techniques can also be used to create devices known as nanoelectromechanical systems or NEMS, which are related to microelectromechanical systems or MEMS. Atomic force microscope tips can be used as a nan oscale write head to deposit a chemical upon a surface in a desired pattern in a process called dip pen nanolithography. This fits into the larger subfield of nanolithography. Focused ion beams can directly remove material, or even deposit material when suitable pre-cursor gasses are applied at the same time. For example, this technique is used routinely to create sub-100  nm sections of material for analysis in Transmission electron microscopy. 3) Functional Approaches: These seek to develop components of a desired functionality without regard to how they might be assembled.Molecular electronics seeks to develop molecules with useful electronic properties. These could then be used as single-molecule components in a nanoelectronic device. For an example see rotaxane. Synthetic chemical methods can also be used to create synthetic molecular motors, such as in a so-called nanocar. 4) Biomimetic Approaches: Bionics or biomimicry seeks to apply biological methods and systems found in nature, to the study and design of engineering systems and modern technology. Biomineralization is one example of the systems studied.Bionanotechnology the use of biomolecules for applications in nanotechnology, including use of viruses. C. Tools and Techniques A microfabricated cantilever with a sharp tip is deflected by features on a sample surface, much like in a phonograph but on a much smaller scale. A laser beam reflects off the backside of the cantilever into a set of photodetectors, allowing the deflection to be measured and assembled into an image of the surface. There are several important modern developments. The atomic force microscope (AFM) and the Scanning Tunneling Microscope (STM) are two early versions of scanning probes that launched nanotechnology. There are other types of scanning probe microscopy, all flowing from the ideas of the scanning confocal microscope developed by Marvin Minsky in 1961 and the eloped by Calvin Quate and coworkers in the 1970s, that made it possible to see structures at the nanoscale. The tip of a scanning probe can also be used to manipulate nanostructures (a process called positional assembly). Feature-oriented scanning-positioning mescanning acoustic microscope (SAM) dev thodology suggested by Rostislav Lapshin appears to be a promising way to implement these nanomanipulations in automatic mode. However, this is still a slow process because of low scanning velocity of the microscope. Various techniques of nanolithography such as optical lithography, X-ray lithography dip pen nanolithography, electron bea m lithography or nanoimprint lithography were also developed. Lithography is a top-down fabrication technique where a bulk material is reduced in size to nanoscale pattern. The top-down approach anticipates nanodevices that must be built piece by piece in stages, much as manufactured items are made. Scanning probe microscopy is an important technique both for characterization and synthesis of nanomaterials. Atomic force microscopes and scanning tunneling microscopes can be used to look at surfaces and to move atoms around. By designing different tips for these microscopes, they can be used for carving out structures on surfaces and to help guide self-assembling structures. By using, for example, feature-oriented scanning-positioning approach, atoms can be moved around on a surface with scanning probe microscopy techniques. At present, it is expensive and time-consuming for mass production but very suitable for laboratory experimentation. D. Nanotechnologys Future Over the next two decades, this new field for controlling the properties of matter will rise to prominence through four evolutionary stages. Today nanotechnology is still in a formative phasenot unlike the condition of computer science in the 1960s or biotechnology in the 1980s. Yet it is maturing rapidly. Between 1997 and 2005, investment in nanotech research and development by governments around the world soared from $432 million to about $4.1 billion, and corresponding industry investment exceeded that of governments by 2005. By 2015, products incorporating nanotech will contribute approximately $1 trillion to the global economy. About two million workers will be employed in nanotech industries, and three times that many will have supporting jobs. Descriptions of nanotech typically characterize it purely in terms of the minute size of the physical features with which it is concernedassemblies between the size of an atom and about 100 molecular diameters. That depiction makes it sound as though nanotech is merely looking to use infinitely smaller parts than conventional engineering. But at this scale, rearranging the atoms and molecules leads to new properties. One sees a transition between the fixed behavior of individual atoms and molecules and the adjustable behavior of collectives. Thus, nanotechnology might better be viewed as the application of quantum theory and other nano-specific phenomena to fundamentally control the properties and behavior of matter. Over the next couple of decades, nanotech will evolve through four overlapping stages of industrial prototyping and early commercialization. The first one, which began after 2000, involves the development of passive nanostructures: materials with steady structures and functions, often used as parts of a product. These can be as modest as the particles of zinc oxide in sunscreens, but they can also be reinforcing fibers in new composites or carbon nanotube wires in ultra miniaturized electronics. The second stage, which began in 2005, focuses on active nanostructures that change their size, shape, conductivity or other properties during use. New drug-delivery particles could release therapeutic molecules in the body only after they reached their targeted diseased tissues. Electronic components such as transistors and amplifiers with adaptive functions could be reduced to single, complex molecules. Starting around 2010, workers will cultivate expertise with systems of nanostructures, directing large numbers of intricate components to specified ends. One application could involve the guided self-assembly of nanoelectronic components into three-dimensional circuits and whole devices. Medicine could employ such systems to improve the tissue compatibility of implants, or to create scaffolds for tissue regeneration, or perhaps even to build artificial organs. After 2015-2020, the field will expand to include molecular nanosystemsheterogeneous networks in which molecules and supramolecular structures serve as distinct devices. The proteins inside cells work together this way, but whereas biological systems are water-based and markedly temperature-sensitive, these molecular nanosystems will be able to operate in a far wider range of environments and should be much faster. Computers and robots could be reduced to extraordinarily small sizes. Medical applications might be as ambitious as new types of genetic therapies and antiaging treatments. New interfaces linking people directly to electronics could change telecommunications. Over time, therefore, nanotechnology should benefit every industrial sector and health care field. It should also help the environment through more efficient use of resources and better methods of pollution control. Nanotech does, however, pose new challenges to risk governance as well. Internationally, more needs to be done to collect the scientific information needed to resolve the ambiguities and to install the proper regulatory oversight. Helping the public to perceive nanotech soberly in a big picture that retains human values and quality of life will also be essential for this powerful new discipline to live up to its astonishing potential. Drastic advancements have been encountered in the fields of electronics, medicines, science, fabrication and computational related to nanotechnology. The details are as below. 1)Future of Nanoelectronics: The recent progress of nanoelectronic devices has revealed many novel devices under consideration. Even though some devices have achieved experimental results comparable with some of the best silicon FETs, these devices have yet to show electrical characteristics beyond the basic, functional level. In several years from now, the planar MOSFET, combined with high-k dielectric and coupled with strained layer technology, is expected to maintain its domination the market, due to the fact that the manufacturers still attempt to exploit their existing manufacturing capabilities and seem reluctant to adopt new technology. However, the double- and multi-gate MOSFET scaling is superior to recent planar MOSFET and also to UTB FD MOSFET scaling, thus the double and multi-gate device is projected as the ultimate MOSFET. The role of double gate MOSFET and non-planar will take greater share, as this technology become mature and the risk are more understandable in near future. On the other hand, several issues on fabrication in adoption route to standard fabrication have to be solved for every other technology. Figure indicates the projection for the first year of full scale production for future nanoelectronic devices by ITRS, which reflect the degree of complexity in fabrication for each technology. New MOSFET structures, starting with UTB-SOI MOSFETs and followed by multi-gate MOSFETs, will be implemented soon. The next generation devices, e.g. carbon nanotubes, graphene, spin transistor etc are promising, due to their performances shown by many researches. However, the processing issues force them to take longer step to be main devices for nanoelectronics. . http://docsdrive.com/images/ansinet/jas/2010/fig8-2k10-2136-2146.gif Fig.2. Projection for the first year of full scale production for future nanoelectronic devices. Nanochips: Currently available microprocessors use resolutions as small as 32 nm. Houses up to a billion transistors in a single chip. MEMS based nanochips have future capability of 2 nm cell leading to 1TB memory per chip. C:UserssudshresDesktopnanochip.jpg Fig.3 A MEMS based nanochip Nanoelectromechanical (NEMS) Sensor in Nanophotonic systems work with light signals vs. electrical signals in electronic systems. Enable parallel processing that means higher computing capability in a smaller chip. Enable realization of optical systems on semiconductor chip. Fig.4. A silicon processor featuring on-chip nanophotonic network Fuel cells use hydrogen and air as fuels and produce water as by product. The technology uses a nanomaterial membrane to produce electricity. C:UserssudshresDesktoppem fuel cell energysolutioncenter.org.jpg Fig.5. Schematic of a fuel cell C:UserssudshresDesktopfuel cell fuel cell economy-com.gif Fig.6. 500W fuel cell Nanoscale materials have feature size less than 100 nm utilized in nanoscale structures, devices and systems. Nanoparticles and Structures C:UserssudshresDesktopgold nano particle 1 nano.gov.uk.jpg Fig.7. Gold nanoparticles C:UserssudshresDesktopNano picturesNSF silver nanoparticles.tif Fig.8. Silver Nanoparticles C:UserssudshresDesktopstm2.jpg Fig.9. A stadium shaped quantum corral made by positioning iron atoms on a copper surface C:UserssudshresDesktopnanoboquet nsf.gov.jpg Fig.10. A 3-dimensional nanostructure grown by controlled nucleation of Silicon-carbide nanowires on Gallium catalyst particles. C:UserssudshresDesktopflexible nano wire solar cell.jpg Fig.11. Nanowire Solar Cell: The nanowires create a  surface that is able to absorb more sunlight than a flat surface. 2) Nanotubes: Carbon nanotubes since their discovery are used as the building blocks in various nanotechnology applications. Although many applications are at preliminary stages of experimentation, carbon nanotubes has many future prospects in almost all spheres of electronics applications. Highly integrated circuit is one of the areas, where many researchers are focusing the research and electronic properties of carbon nanotubes are being exploited. Researchers have identified and fabricated the electronic devices having densities ten thousand times greater than the present day microelectronics. These technologies will either complement or replace the CMOS. Further the electronic devices based on carbon nanotubes have additional and advance features such as conductivity, current carrying capacity and electromigration. Semi conducting carbon nanotubes having excellent nobilities and semiconductancies have been prepared and these are far better than the conventional semi conductors. Actually there are some major barriers for developing highly integrated circuits such as present fabrication methods produces the mixture of metallic and semiconductor nanotubes and exact electronic arrangements within a semiconductor nanoube is poorly understood. These are therefore the hurdles in manufacturing and fabricating highly integrating circuits, however continuous research in this area will lead to new and much more advance technology that will not only able to overcome from these barriers but will also open the door for new electronic applications also. C:UserssudshresDesktopmr340083.f7-SnO2-TiO2 composite nanoribbon.jpeg Fig.12 Nanotube 3) Future of Nanomedicine: Nanomedicine is the application of nanotechnology in medicine, including to cure diseases and repair damaged tissues such as bone, muscle, and nerve. To develop cure for traditionally incurable diseases (e.g. cancer) through the utilization of nanotechnology and provide more effective cure with fewer side effects by means of targeted drug delivery systems.Nanotechnology is beginning to change the scaleand methods of vascular imaging and drug delivery. NanomedicineInitiatives envisage that nanoscale technologies willbegin yielding more medical benefits within the next10 years. This includes the development of nanoscalelaboratory-based diagnostic and drug discovery platform devices such as nanoscale cantilevers for chemicalforce microscopes, microchip devices, nanopore sequencing, etc. The National Cancer Institute has related programs too,with the goal of producing nanometer scale multifunctionalentities that can diagnose, deliver therapeuticagents, and monitor cancer treatment progress. These include design and engineering of targeted contrast agents that improve the resolution of cancer cells to the single cell level, and nanodevices capable of addressing the biological and evolutionary diversity of the multiple cancer cells that make up a tumor within an individual. Thus, for the full in vivo potential of nanotechnology in targeted imaging and drug delivery to be realized, nanocarriers have to get smarter. Pertinent to realizing this promise is a clear understanding of both physicochemical and physiological processes. These form the basis of complex interactions inherent to the fingerprint of a nanovehicle and its microenvironment. extracellular and intracellular drug release rates in different pathologies, interaction with biological milieu, such as opsonizati on, and other barriers enroute to the target site, be it anatomical, physiological, immunological or biochemical, and exploitation of opportunities offered by disease states (e.g., tissuespecific receptor expression and escape routes from the vasculature). There are numerous examples of disease-fighting strategies in the literature, using nanoparticles. Often, particularly in the case of cancer therapies, drug delivery properties are combined with imaging technologies, so that cancer cells can be visually located while undergoing treatment. The predominant strategy is to target specific cells by linking antigens or other biosensors (e.g. RNA strands) to the surface of the nanoparticles that detect specialized properties of the cell walls. Once the target cell has been identified, the nanoparticles will adhere to the cell surface, or enter the cell, via a specially designed mechanism, and deliver its payload. One the drug is delivered, if the nanoparticle is also an imaging agent, doctors can follow its progress and the distribution of the cancer cell is known. Such specific targeting and detection will aid in treating late-phase metastasized cancers and hard-to-reach tumors and give indications of the spread of those and other diseases. It also prolongs the life of certain drugs that have been found to last longer inside a nanoparticle than when the tumor was directly injected, since often drugs that have been injected into a tumor diffuse away before effectively killing the tumor cells. 4) Future of Nanoscience: Without carbon, life cannot exist, the saying goes, and not only life. For technological development, carbon was the ultimate material of the 19th century. It allowed the beginnings of the industrial revolution, enabling the rise of the steel and chemical industries, it made the railways run, and it played a major role in the development of naval transportation. Silicon, another very interesting material which makes up a quarter of the earths crust, became the material of the 20th century in its turn. It gave us the development of high performance electronics and photovoltaics with large fields of applications and played a pivotal role in the evolution of computer technology. The increased device performance of information and data processing systems is changing our lives on a daily basis, producing scientific innovations for a new industrial era. However, success breeds its own problems, and there is ever more data to be handled-which requires a nanoscience approach. This cluster aims to address various aspects, prospects and challenges in this area of great interest for all our futures. Carbon exists in various allotropic forms that are intensively investigated for their unusual and fascinating properties, from both fundamental and applied points of view. Among them, the sp2 (fullerenes, nanotubes and graphene) and sp3 (diamond) bonding configurations are of special interest since they have outstanding and, in some cases, unsurpassed properties compared to other materials. These properties include very high mechanical resistance, very high hardness, high resistance to radiation damage, high thermal conductivity, biocompatibility and superconductivity. Graphene, for example, possesses very uncommon electronic structure and a high carrier mobility, with charge carriers of zero mass moving at constant velocity, just like photons. All these characteristics have put carbon and carbon-related nanomaterials in the spotlight of science and technology research. The main challenges for future understanding include i) material growth, ii) fundamental properties, and iii) devel oping advanced applications. Carbon nanoparticles and nanotubes, graphene, nano-diamond and films address the most current aspects and issues related to their fundamental and outstanding properties, and describe various classes of high-tech applications based on these promising materials. Future prospects, difficulties and challenges are addressed. Important issues include growth, morphology, atomic and electronic structure, transport properties, superconductivity, doping, nanochemistry using hydrogen, chemical and bio-sensors, and bio-imaging, allowing readers to evalate this very interesting topic and draw perspectives for the future. E. Foreign Prospect of Nanotechnology Nanotechnology provides a significant opportunity to address global challenges. This is leading to intense global competition to commercialise different products enabled by nanotechnology. However, UK industry is well placed to capitalise on this opportunity and participate in the development of many new products and services by operating alone or in collaboration with international partners. Success in this area will lead to growth in employment and wealth creation. Today, nanotechnology is evolving with some mature products and many in the growth and developmental stage. This is not unlike the condition of computer science in the 1960s or biotechnology in the 1980s. Nanotechnology has been applied to the development of products and processes across many industries particularly over the past ten years. Products are now available in markets ranging from consumer products through medical products to plastics and coatings and electronics products. There have been various market reports estimating the scale of potential future value for products that are nanotechnology enabled. A report from Lux Research published in 2006 entitled The Nanotech Report 4th Edition, notes that nanotechnology was incorporated into more than $30 billion in manufactured goods in 2005. The projection is that in 2014, $2.6 trillion in manufactured goods will incorporate nanotechnology. Even if this is an over-estimate, it is clear that there is a vast market available for nanotechnology based products. It is extremely important to the UK economy that UK companies engaged in nanotechnology participate at each stage of the supply chain. While companies are moving speedily to develop further and more advanced products based on nanotechnology, they are becoming increasingly aware that there are many challenges to address. It was with this background that a Mini Innovation and Growth Team (Mini-IGT) was formed comprising members of the NanoKTN and the Materials KTN as the secretariat, together with members of the Chemistry Innovation KTN and the Sensors and Instrumentation KTN, to prepare a report on nanotechnology on behalf of UK industry. A questionnaire was sent to the members of the various KTNs to solicit feedback on their views on nanotechnology focussing on their commercial position and also their concerns and issues. While the UK Government has commissioned reports and provided responses over the past decade, in the field of nanotechnology, the UK has not articulated an overarching national strategy on nanotechnology that can rank alongside those from the likes of the US and Germany. It is intended that this report, with its unique industry led views on nanotechnology, together with other strategic documents, including the Nanoscale Technologies Strategy 2009-2012 produced by the Technology Str ategy Board, will provide a significant contribution to a future UK Government Strategy on Nanotechnology. Nanotechnology is the basis for many products that are in common use and is providing the capability to produce a very wide range of new products that will become commonplace in the near future. The UK, like many other countries, has invested heavily in nanotechnology and has considered, through a series of reports and Government responses, how to manage and fund nanotechnology developments. At the third meeting of the Ministerial Group on Nanotechnology it was agreed that a nanotechnology strategy should be developed for the UK. As part of the strategy development process, Lord Drayson launched an evidence gathering website on 7th July 2009. Alongside this, four Knowledge Transfer Networks (Nanotechnology, Materials, Chemistry Innovation and Sensors Instrumentation) with significant industrial interest in nanotechnology agreed that it was necessary for industry to contribute to policy development using the bottom up approach. It is intended that this report with its unique industry led views on nanotechnology will provide a significant contribution to a future overarching UK Government Strategy on Nanotechnology, alongside other input from inter alia the Technology Strategy Board and the Research Councils. In addition to the questionnaire, feedback was sought from industry at workshop discussions with invited industry leaders and others in the field of nanote

Saddam Hussein: The U.S Portrayal of Evil Encarnate :: American America History

Saddam Hussein: The U.S Portrayal of Evil Encarnate When Iraq invaded and occupied the country of Kuwait in August 1990, the Bush administration was faced with several dilemmas. From a foreign policy point of view, this action could greatly destabilize the balance of power in a part of the world that was vital to U.S. interests. The United States was dependant on a continuous flow of oil to drive its economic machine, which Kuwait supplied greatly. In addition, this move would put more power into the hands of a government that was not only unfriendly to the U.S., but a sworn enemy of the state of Israel, a strong U.S. ally. In addition to, the fall of communism had created what George Bush had described as, "A new world order," and would become the first major test of how the U.S. would handle its role as the sole remaining super power in this "new world order." There were many challenges facing the Bush administration as to the manner in which they would handle this first major international crisis. The Bush administration had to dev elop a consensus of the major remaining powers, and appear not acting alone in its response to President Saddam Hussein's actions of invading Kuwait. They also yearned to keep Israel from being involved so as not to alienate the remaining Middle Eastern nations. Lastly, they faced a domestic dilemma, in that much of the American public had significant reservations about involving U.S. troops involved in a foreign conflict. There remained a bad taste of Vietnam among the American public, and there were very mixed responses to American involvement in Somalia, Nicaragua, and Grenada. For the Bush administration, Hussein was not a merchant who could be bargained with, but rather an outlaw who would have to be defeated by force. The Bush administration was faced with a task of developing (more or less) overwhelming support from the U.S. people to take any action in Kuwait, which was accomplished by a dramatic public relations move to demonize Saddam Hussein in the eyes of the American pe ople. The task of the United States demonizing Saddam Hussein was facilitated by many factors, both real and imaginary; a mixture of true facts and public relations image making. On the fact side, Saddam Hussein was indeed a dictator, and responsible for some true atrocities. Hussein ruled with an iron fist. Most accounts of political analysts looking at Iraq agree that his rein was one characterized by fear of the state. Saddam Hussein: The U.S Portrayal of Evil Encarnate :: American America History Saddam Hussein: The U.S Portrayal of Evil Encarnate When Iraq invaded and occupied the country of Kuwait in August 1990, the Bush administration was faced with several dilemmas. From a foreign policy point of view, this action could greatly destabilize the balance of power in a part of the world that was vital to U.S. interests. The United States was dependant on a continuous flow of oil to drive its economic machine, which Kuwait supplied greatly. In addition, this move would put more power into the hands of a government that was not only unfriendly to the U.S., but a sworn enemy of the state of Israel, a strong U.S. ally. In addition to, the fall of communism had created what George Bush had described as, "A new world order," and would become the first major test of how the U.S. would handle its role as the sole remaining super power in this "new world order." There were many challenges facing the Bush administration as to the manner in which they would handle this first major international crisis. The Bush administration had to dev elop a consensus of the major remaining powers, and appear not acting alone in its response to President Saddam Hussein's actions of invading Kuwait. They also yearned to keep Israel from being involved so as not to alienate the remaining Middle Eastern nations. Lastly, they faced a domestic dilemma, in that much of the American public had significant reservations about involving U.S. troops involved in a foreign conflict. There remained a bad taste of Vietnam among the American public, and there were very mixed responses to American involvement in Somalia, Nicaragua, and Grenada. For the Bush administration, Hussein was not a merchant who could be bargained with, but rather an outlaw who would have to be defeated by force. The Bush administration was faced with a task of developing (more or less) overwhelming support from the U.S. people to take any action in Kuwait, which was accomplished by a dramatic public relations move to demonize Saddam Hussein in the eyes of the American pe ople. The task of the United States demonizing Saddam Hussein was facilitated by many factors, both real and imaginary; a mixture of true facts and public relations image making. On the fact side, Saddam Hussein was indeed a dictator, and responsible for some true atrocities. Hussein ruled with an iron fist. Most accounts of political analysts looking at Iraq agree that his rein was one characterized by fear of the state.

Monsoons: Monsoon and Southern Hemisphere

MONSOONS Topic sentence-â€Å"This essay will focus upon the both the beneficial and the detrimental impacts of monsoonal weather systems in the Asia pacific region. † INTRODUCTION: paragraph 0 * Monsoons are an annually recurring weather phenomenon, triggered by the earth’s tilt in relation to the sun. Although they return every year, it is still impossible to tell the timing, duration, and quantity of rain each season, a fact that leaves impacted areas without accurate storm information * The major monsoon systems of the world consist of the West African and Asia-Australian monsoons. The wind generally blows for six months from the northeast and six months from the southwest. * A major wind system that seasonally reverses its direction—such as one that blows for approximately six months from the northeast and six months from the southwest. The most prominent monsoons occur in South Asia, Africa, Australia, and the Pacific coast of Central America. Monsoonal ten dencies also are apparent along the Gulf Coast of the United States and in central Europe; however, true monsoons do not occur in those regions. ORIGINS: paragraph 1 Strengthening of the Asian monsoon has been linked to the uplift of the Tibetan Plateau after the collision of the Indian sub-continent and Asia around 50 million years ago. [9] Many geologists believe the monsoon first became strong around 8 million years ago based on records from the Arabian Sea and the record of wind-blown dust in the Loess Plateau of China. More recently, plant fossils in China and new long-duration sediment records from the South China Sea led to a timing of the monsoon starting 15-20 million years ago and linked to early Tibetan uplift. 10] Testing of this hypothesis awaits deep ocean sampling by the Integrated Ocean Drilling Program STRUCTURE: paragraph 1 CAUSES/PROCESS: paragraph 2 * SUMMER MONSOONS: When the Sun rays fall on the Earth, they get reflected by the land and cause heating of the air present above it. The water sources like oceans, rivers, etc. , absorb this heat from the air, due to which the air present above these water sources is relatively cool. * Example is the zone of Asia, where major part of the northern hemisphere is land and southern hemisphere is ocean.During summers, the Earth makes a perfect angle with the Sun; as a result, the Sun rays directly strike on the northern hemisphere landmass. These Sun rays get reflected and cause warming of the air. This hot air rises up into the atmosphere and the cooler air of the southern hemisphere from the ocean rush to fill the gap. This cool air contains moisture which is the main source of summer rains in Asia. This process is known as summer monsoon or southwest monsoon. * WINTER MONSOONS: Sun rays are more dominant at the southern hemisphere. They are completely reverse of summer monsoons as the lands are cooler than the oceans.The air circulation is completely opposite as the warm air moves from ocean to l and and cold air move from land to ocean. This cold air entraps the moisture when they pass over the tropical waters and releases the moisture over northern Australia, Sri Lanka, the Indian coast and Indonesia. They are also known as north-east monsoons. IMPACTS: paragraph3 * Over 60% of the world’s population depend on monsoon rains, but despite their regularity, there are year-to-year variations which place enormous strain on food and water resources. * Food production in seasonally arid areas is inherently risky.By the end of the dry season, the soil is parched and planting cannot begin until the rains arrive. A late or weak monsoon can lead to a short r poor growing season and hence low yields, as happened during the drought of 1987. An excessively strong monsoon can be just as detrimental. For example, in Pakistan, heavy rain during September 1992 flooded cotton plantations and caused the crop to fail. Agricultural failure has a profound effect on the economy of monsoon- affected countries, such as India, where farming accounts for 30% of the gross domestic product and 67% of the workforce.BENEFITS: paragraph3 * The benefits of monsoon rain are immense – they provide water for a country whose dry, arid climate destroys and dries out the water supply. In the hotter and drier months of the year in India, people are sometimes forced to travel by foot for miles just to get clean water for their families. Some just collapse from heat stroke and lack of energy. The monsoons change this – the water from the monsoon rain saves lives. DESTRUCTIVE POTENTIAL: paragraph3 * Monsoons can put communities in danger.The winds can knock down trees and even do some damage to people's houses or buildings – windows may be broken and trees may fall on houses. The floods also cause people serious problems. People may be walking down the street, wading through waist-deep water. The floods from the extreme rain can spread bacteria as well. The dirty wat er that hundreds of other people have been wading through can be a good breeding ground for harmful bacteria and it helps spread deadly diseases. Mosquitoes breed in water, so there might be an over-population of mosquitoes that can carry diseases, as well.EXAMPLES: paragraph 4 STATISTICS: paragraph 5 ————————————————- Monsoon Statistics| | No. | Year | Average rain in millimeter in Bharuch headquarter| Average rain in millimeter in districts| 1| 1998 | 1089 | 910 | 2 | 1999 | 523 | 397. 37 | 3 | 2000 | 533 | 389. 25 | 4 | 2001 | 857 | 614. 87 | 5 | 2002 | 1023 | 714. 37 | 6 | 2003 | 872 | 806 | 7 | 2004 | 1062 | 783 | 8 | 2005 | 826 | 889 | 9 | 2006 | 963 | 914. 8 | 10 | 2007 | 1487 | 900 | | | | http://en. wikipedia. org/wiki/Monsoon http://school. eb. com. au/all/eb/article-9053445? query=monsoons&ct=null http://www. uzzle. com/articles/what-causes-monsoons. html http:/ /library. thinkquest. org/C003603/english/monsoons/causesofmonsoons. shtml http://ugamp. nerc. ac. uk/promise/brochure/brochure. pdf http://indiasmonsoons. blogspot. com/ http://bharuchdp. gujarat. gov. in/bharuch/english/branches/revenue-branch/monsoon-statistic. htm STRUCTURE * INTRODUCTION * Origins (paragraph1) * Structure (Paragraph 1) * Causes/Process (paragraph2) * Impacts(paragraph3) * Benefits (paragraph3) * Destructive potential (paragraph3) * Example (paragraph 4) * Statistics (paragraph 4) * CONCLUSION