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Monday, December 15, 2008

Memory tasks

* Paired associate learning - when one learns to connect one exact word with another. For example when given a word such as "safe" one must study to say another specific word, such as green. This is incentive and response.

* Free recall- during this task a subject would be asked to learn a list of words and then sometime later they will be asked to recall or write down as several words that they can remember.

* Recognition- subjects are asked to remember a list of words or pictures, after which point they are asked to recognize the before obtainable words or pictures from among a list of alternatives that were not accessible in the unique list.

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Monday, November 24, 2008

Pharmacogenomics

Pharmacogenomics is the study of how the hereditary inheritance of an individual affects his/her body’s response to drugs. It is a coined word resulting from the words “pharmacology” and “genomics”. It is hence the study of the relationship between pharmaceuticals and genetics. The vision of pharmacogenomics is to be able to design and produce drugs that are modified to each person’s genetic structure.

Pharmacogenomics consequences in the following benefits:

1. Development of tailor-made medicines. Using pharmacogenomics, pharmaceutical companies can make drugs based on the proteins, enzymes and RNA molecules that are associated with specific genes and diseases. These tailor-made drugs assure not only to maximize therapeutic effects but also to decrease injure to nearby healthy cells.

2. More accurate methods of determining suitable drug dosages. Knowing a patient’s genetics will enable doctors to determine how well his/ her body cans procedure and metabolize a medicine. This will maximize the value of the medicine and reduce the likelihood of overdose.

3. Improvements in the drug detection and approval process. The discovery of potential therapies will be made easier using genome targets. Genes have been linked with many diseases and disorders. With modern biotechnology, these genes can be used as targets for the development of effectual new therapies, which could significantly shorten the drug discovery process.

4. Better vaccines. Safer vaccines can be intended and produced by organisms distorted by means of genetic engineering. These vaccines will elicit the resistant response without the attendant risks of infection. They will be inexpensive, stable, easy to store, and capable of being engineered to carry several strains of pathogen at once.

Monday, May 12, 2008

Bluetooth

Bluetooth is an industrial requirement for wireless personal area networks (PANs). Bluetooth provides a way to connect and swap information between devices such as mobile phones, laptops, PCs, printers, digital cameras, and video game consoles over a secure, globally unlicensed short-range radio frequency. The Bluetooth specifications are licensed and developed by the Bluetooth Special Interest Group.

Bluetooth is a radio standard and communications protocol mostly designed for low power consumption, with a short range based on low-cost transceiver microchips in each device. The devices use a radio communications system, so they do not have to be in line of view of each other, and can even be in other rooms, as long as the conservative transmission is powerful enough.
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Tuesday, May 06, 2008

Aberrations

A lens is a device for either concentrating or diverging light, usually produced from a piece of shaped glass. Lenses do not form perfect images, and there is always some degree of distortion or aberration introduced by the lens which causes the image to be an defective replica of the object. Careful design of the lens system for a exacting application ensures that the aberration is minimized. There are several different types of aberration which can influence image quality.


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Friday, May 02, 2008

Automobile

An automobile (also motor car or simply car) is a wheeled traveler vehicle that carries its own motor. Most definitions of the term specify that automobiles are designed to run mostly on roads, to have seating for one to eight people, to typically have four wheels, and to be constructed principally for the transport of people rather than goods.However, the term is far from precise.

The economics of personal automobile ownership go away from the initial cost of the vehicle and includes repairs, maintenance, fuel, depreciation, the cost of borrowing, parking fees, tire replacement, taxes and insurance.The capability for humans to travel rapidly from place to place has far reaching implications for the nature of our society. People can now live faraway from their workplaces, the design of our cities is determined as much by the need to get vehicles into and out of the city as the nature of the buildings and public spaces within the city.


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Tuesday, April 22, 2008

Cache Memory

A CPU cache is a cache used by the central processing unit of a computer to decrease the average time to access memory. The cache is a smaller, faster memory which stores copies of the data from the most often used main memory locations. As long as most memory accesses are to cached memory locations, the average latency of memory accesses will be closer to the cache latency than to the latency of main memory.

When the processor needs to read or write a location in main memory, it first checks whether that memory location is in the cache. This is accomplished by comparing the address of the memory location to all tags in the cache that may contain that address. If the processor finds that the memory location is in the cache, we say that a cache hit has occurred; otherwise we talk of a cache miss. In the case of a cache hit, the processor immediately reads or writes the information in the cache line. The proportion of accesses that result in a cache hit is known as the hit rate, and is a measure of the effectiveness of the cache.

In the case of a cache miss, most caches assign a new entry, which comprises the tag just missed and a copy of the data from memory. The reference can then be applied to the new entry just as in the case of a hit. Misses are relatively slow because they require the data to be transferred from main memory. This transfer incurs a delay since main memory is much slower than cache memory, and also incurs the overhead for recording the new data in the cache before it is delivered to the processor.


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Thursday, April 17, 2008

Biotechnology

Biological technology is technology based on biology, particularly when used in agriculture, food science, and medicine. Biotechnology means any technological application that uses biological systems, living organisms, or derivatives thereof, to construct or change products or processes for specific use.

Biotechnology combines disciplines like genetics, molecular biology, biochemistry, embryology and cell biology, which are in turn allied to practical disciplines like chemical engineering, information technology, and robotics.Biotechnology can also be defined as the exploitation of organisms to do practical things and to provide useful products.

One characteristic of biotechnology is the directed use of organisms for the manufacture of organic products (examples include beer and milk products). For another example, naturally present bacteria are utilized by the mining industry in bioleaching. Biotechnology is also used to recycle, treat waste, clean up sites infected by industrial activities (bioremediation)
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, and produce biological weapons.

Thursday, April 03, 2008

Abstract art

Abstract art is now usually understood to mean art that does not depict objects in the natural world, but instead uses colour and form in a nonfigurative way.In the very early 20th century, the term was more often used to describe art, such as Cubist and Futurist art, that depicts real forms in a easy or rather reduced way—keeping only an allusion of the original natural subject. Such paintings were often claimed to capture amazing of the depicted objects' absolute intrinsic qualities rather than its external appearance. The more precise terms, "non-figurative art," "non-objective art," and "non-representational art" keep away from any possible ambiguity.


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Thursday, March 27, 2008

Sandstones

Sandstone is an arenaceous sedimentary rock composed mostly of feldspar and quartz and varies in colour (in a similar way to sand), through grey, yellow, red, and white. Since sandstones often form extremely visible cliffs and other rock formations, certain colors of sandstone may be strongly identified with certain regions. For instance, much of the North American West is familiar for its red sandstones.
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Monday, March 10, 2008

Planet

A planet, is a extraterrestrial body orbiting a star or stellar remnant that is massive adequate to be rounded by its own gravity, not massive enough to cause thermonuclear fusion in its core, and has cleared its neighbouring region of planetesimals

After stars and stellar remnants, planets are a few of the most massive objects known to man. They play an important part in the structure of planetary systems, and are also considered, along with large moons, the most feasible environment for life. Thus planetary science is crucial not only to comprehend the structure of the universe, but also to better understand the development of life, and to aid the search for extraterrestrial intelligence. Additionally, the planets visible from Earth have played a vital role in the shaping of human culture, religion and philosophy in abundant civilisations. Even today, many people continue to believe true the movement of the planets affects their lives, all though such a causation is discarded by the scientific community.



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Monday, March 03, 2008

Orchids

Orchids (Orchidaceae family) are among the biggest and most diverse of the flowering plant (angiospermae) families, with over 800 described genera and 25,000 (some sources give 30,000) species, and another 100,000 + hybrids and cultivars formed by horticulturalists. The Kew World Checklist of Orchids includes about 24,000 conventional species. As regards 800 new species are added each year. Orchids, through their floral complexity and their connections with pollinators and their symbiosis with mycorrhizae, are considered by some, along with the grasses, to be examples of the most difficult floral evolution known.



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Wednesday, February 27, 2008

Thomas Nast - American Artist

Thomas Nast was a well-known German-American caricaturist as well as editorial cartoonist lived in the 19th century and was called by people as the father of American political cartooning.

He was born in the quarters of Landau, Germany, the son of a instrumentalist in the 9th contingent Bavarian group. His mother took him to New York in 1846. He deliberately studied fine art there for almost a year with Alfred Fredericks in addition to Theodore Kaufmann and at the school of the National Academy of Drawing. After school at the age of 15, he started working in 1855 as a architect for Frank Leslie's Illustrated paper; three years after for Harper's Weekly.

His primary sober works in drawing was the cartoon "Peace," intended for against those in the North who disparate the prosecution of the American Civil War. This and his other cartoons during the conflict and restoration days were put into paper called Harper's weekly. He was well-known for illustrating battlefield in border and southern states.

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Tuesday, February 19, 2008

Network Monitoring

The term network monitoring describes the use of a system that always monitors a computer network for slow or failing systems and that notifies the network administrator in case of outages via email, pager or other alarms. It is a subset of the functions occupied in network management.

While an interruption detection system monitors a network for threats from the outside, a network monitoring system monitors the network for troubles due to overloaded and/or crashed servers, network connections or other devices.

usually measured metrics are response time and availability (or uptime), although both consistency and reliability metrics are starting to increase popularity.Status request failures, such as when a connection cannot be established, it times-out, or the document or message cannot be retrieved, usually produce an action from the monitoring system. These actions vary: an alarm may be sent out to the resident (SMS, email,...) sysadmin, automatic failover systems may be activated to remove the disturbed server from duty until it can be repaired, etcetera.Monitoring the performance of a network uplink is also known as network traffic measurement, and more software is listed there.


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Monday, February 11, 2008

Linux

Linux is a computer operating system like unix,windows etc.. Linux is one of the most famous examples of free software and open source development; its underlying source code can be freely modified, used, and redistributed by anyone.The Linux kernel was first released to the community on 17 September 1991, for the Intel x86 PC architecture. The kernel was enlarged with system utilities and libraries from the GNU project to create a usable operating system, which later led to the alternate term GNU/Linux.Linux is now packaged for different uses in Linux distributions, which contain the sometimes customized kernel along with a variety of other software packages tailored to different requirements.



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Tuesday, February 05, 2008

Inkjet Printer

Inkjet printers are a type of computer printer that operates by propelling minute droplets of liquid ink onto paper. They are the most general type of computer printer for the general consumer due to their low cost, high quality of output, capability of printing in vivid color, and ease of use

In the personal and small business computer market, inkjet printers presently predominate. Inkjets are usually cheap, quiet, reasonably fast, and many models can produce high quality output. Like most modern technologies, the present-day inkjet has built on the progress made by many earlier versions. Among many contributors, Epson, Hewlett-Packard and Canon can claim a substantial share of credit for the growth of the modern inkjet. In the worldwide consumer market, four manufacturers account for the majority of inkjet printer sales: Canon, Hewlett-Packard, Epson, and Lexmark.



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Wednesday, January 30, 2008

Australia's economic policies

It is significant to add to efficiency levels in the Australian economy. It is important to define accurately what we mean when we say efficiency. Do we mean technical efficiency and attempt to create our output at the minimum price maybe we mean to increase allocative efficiency and distribute resources throughout the economy better in accordance with the demands of consumers. We may even speak of dynamic efficiency and thus introduce new technology and new techniques in order to keep pace with changes in consumer required. However we cannot simply mean to increase one of these if we are to attain maximum efficiency throughout our economy they all must be increased in order to maintain an objective and efficient economy and to promote economic growth.
There are many policies to aid this that will be looked at during the course of this article including privatization, corporatisation, deregulation and a host of others.


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Wednesday, January 23, 2008

Geography

Geography is the study of the earth and its features and of the circulation of life on the Earth. A literal transformation would be "to describe the Earth". The first person to use the word "geography" was Eratosthenes (275-195 B.C.). Four historical civilization in geographical research are the spatial analysis of natural and human phenomena, area studies, study of man-land relationship, and investigate in earth sciences. Nonetheless, modern geography is an all-inclusive discipline that foremost seeks to understand the world and all of its human and natural complexities-- not merely where things are, but how they have changed and come to be. It is said to be the "mother of all math" and "the synthesizer of information." Geography is mainly divided into two main branches - human geography and physical geography.

Conventionally, geography as well as geographers has been viewed as the same as cartography and people who study place names. Although many geographers are capable in toponymy and cartography, this is not their main preoccupation. Geographers study the spatial and temporal allotment of phenomena, processes and feature as well as the interaction of humans and their environment. As space and place persuade a variety of topics such as economics, health, climate, plants and animals, geography is highly interdisciplinary.


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Tuesday, January 22, 2008

A Burning Desire for Hockey

Many people are tried to have many special hobbies. Ice Hockey immediately happened to be mine. It is been almost twenty years since my mother and father takes me Ice Skating. When i was three years old. Before I move any further I would like to tell you that I come from a family that has an extended record of hockey players. My grandfather on both my mothers and fathers part played hockey. I still had a grandma on my mother’s side that play field hockey in Duluth, MN. My biggest pressure in the game of hockey was from my father, he and his brother played hockey for the college of Illinois. As a childhood I wore my dad’s old hockey jersey throughout my few years of hockey. To say the least, I dreamed of being a qualified hockey player. It was not until I was playing at the high school level that I learn hockey is other than a game.
It was always expressed that hockey was a very physical and dangerous sport and it really did not sink in until I started playing confirm to hockey. A hockey player generally enters this physical state of the game around the age of twelve to fourteen. As I grew older the speed of the game got closer, thus made the complexity of the game do a180.

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Thursday, January 17, 2008

Ferry

A ferry is a form of transport, characteristically a boat or ship, but also other forms, carrying passengers and sometimes their vehicles. Ferries are also used to carry shipment(in Lorries and sometimes empowered freight containers) and even railroad cars. Most ferries manage on regular, everyday, return services. A foot-passenger ferry with a lot of stops, such as in Venice, is also known as waterbus or water taxi .

Ferries form a part of the public transport systems of many water's edge cities, allow direct transit between points at a capital cost much lower than bridges or tunnels.



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Wednesday, January 09, 2008

Dot matrix printer

Unlike a typewriter or daisy wheel printer, letters are tired out of a dot matrix, and thus, varied fonts and random graphics can be produced. Because the printing involves mechanical pressure, these printers can create carbon copies and carbonless copies. A dot matrix printer or impact matrix printer refers to a type of computer printer with a print head that runs back and forth on the page and prints by impact, outstanding an ink-soaked cloth ribbon beside the paper, much like a typewriter.

Each dot is formed by a tiny metal rod, also called a "wire" or "pin", which uses the power of a tiny electromagnet or solenoid to drive it forward, either directly or through small levers .Facing the ribbon and the paper is a small guide plate (often made of an artificial jewel such as sapphire or garnet) pierced with hole to provide as guides for the pins. The moving portion of the printer is called the print head, and prints one line of text at a time.The majority dot matrix printers have a single vertical line of dot-making apparatus on their print heads; others have a few interleaved rows in order to improve dot density.

These machines can be highly durable, but eventually wear out. Ink invades the direct plate of the print head, causing grit to adhere to it; this grit slowly causes the channels in the guide plate to wear from circles into ovals or slots, providing less and less correct guidance to the printing wires. After about a million characters, even with tungsten blocks and titanium pawls, the printing becomes too unclear to read.


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Wednesday, January 02, 2008

Apple Computer

Apple Computer, Inc. NASDAQ: AAPL is a Silicon Valley company based in Cupertino, California, whose nucleus business is computer technologies. Apple helped originate the personal computer revolution in the 1970s with the Apple II microcomputer and has since further shaped it with the Macintosh. Apple is known for its original, well-designed hardware, such as the iPod and iMac, as well as software offerings exemplified through iTunes as part of the iLife suite and Mac OS X, its flagship operating system.



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Tuesday, January 01, 2008

A Long Ways

When it comes to equal opportunity between men and women in particular dealing with athletics, there come contrasting viewpoints as to how this parity should be obtained. The text of Title IX clearly states that no human being in the United States shall, on the basis of sex, be disqualified from sharing in, be without the remuneration of, or be subjected to favoritism under any education program or activity getting Federal financial assistance. This text of title IX forbids any means of inequity on the basis of sex to any individual in all federally assisted education programs. Title IX has been a great achievement for the U.S. in the effort towards parity for women.
Since Title IX became law back in 1972, remarkable changes have been made to level the playing fields of this nation’s schools and to change the observation of the place of girls and women on them. Not only are more women participating in sports, they are participating in sports that were traditionally not engaged by women--such as lacrosse, wrestling, soccer, rugby and ice hockey.


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