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Photodetectors -- devices found in cell phones, digital cameras and other consumer gadgets that utilize photoconducting materials -- are a green technology in performance (converting light into electricity), but the manufacture of very powerful photodetectors needs to be improved before they can qualify for solid green status.
This is especially true if photoconducting materials are to be widely used for producing solar energy.
The biology of ovarian cancers discovered at an early stage may render them slower growing and less likely to spread than more aggressive cancers, which typically are discovered in an advanced stage, according to a study led by investigators in the Duke Comprehensive Cancer Center. This finding has implications for the question of whether screening for ovarian cancer could save lives.
Both plant and human diseases that can travel with the wind have the potential to spread far more rapidly than has been understood, according to a new study, in findings that pose serious concerns not only for some human diseases but also a new fungus that threatens global wheat production.
The research, done by scientists at Oregon State University and other institutions, concluded that invading diseases do not always progress in an orderly, constant rate. These historical studies of both plant and animal diseases show that some pathogens that can be carried through the air can actually accelerate as they move, and can become widespread problems much faster than had been thought possible.
In a development that could help improve the prevention and treatment of osteoporosis, rickets, and other bone diseases, government chemists are reporting an advance in developing an accurate, reliable set of standards for measuring vitamin D levels in blood. Their findings could affect the health of millions of people worldwide, particularly children, women, and the elderly, who suffer from or are at risk of these debilitating diseases.
By Annora Smith
For most of us, our laptops are not portable substitutes for home desktop computers but are the primary tools we use to conduct business on a daily basis. Without our laptops, many of us would have very different lives and very different livelihoods. We cram them full of video downloads, favorite pictures and plenty of applications that demand more and more memory. When they slow down, it can be particularly frustrating and we want an instant fix.
By Mohit Agrawal
Mobile Number Portability (MNP) has been introduced in many developed countries and is now being contemplated in many developing countries. Number portability enables a subscriber to switch between services, locations, or operators while retaining the original telephone number. There are three basic types of number portability: service, location and operator portability. In most of the countries, location portability and service portability are not enforced, and only operator portability is implemented because operator portability is considered essential for fair competition among operators, while location portability and service portability are typically treated as value-added services. When the number portability is only on the mobile platform, it is called mobile number portability (it is a type of operator portability).
By R Govindan
Ultrasound as a concept is most commonly used in a nondestructive imaging notion in various medical applications. Sound waves which are actually not audible to human ears have the ability to generate images and impressions upon soft tissues in our body. Devices which make use of this ultrasonic concept have the tendency to relieve arthritis pressure and can also help in treating the brain cancer.
By Ronald Eapen
The evolution of science fiction movies over the last 50 years can be attributed to much more than the advances in special effects and movie-making technology (although those changes have had an effect); the biggest influence on scifi during this time period are the events that occurred in the real world. These past five decades leading up to today have been subject to an ever-accelerating onslaught of technological achievements and world-changing events.
By Angelina Maben
Since 1960 to this day when it has come to its age, GPS satellite navigation has extensively been used in various fields. Now when it is used as mainstream technology, automobile industry has not been untouched from it. GPS navigation system will help you to find right direction and location according to your need with the help of satellite. Car based GPS navigation system makes you sure that you don't get lost when you are driving. Normally, GPS satellite device in a car is PDA based, which is very comfortable to carry, and to be used.
Last month, I discussed the Semantic Web as one of the three technologies that I think will converge during the next five years to make a significant change in how we live, how we work, how we play, and how we shop. The Semantic Web will know what you want. Your browser will understand the content of the web pages that you surf. You will do things with the Web that you cannot now imagine.
Today, it is as hard to predict the future of the Internet and e-business as it would have been for a Civil War telegraph operator to imagine what we are doing now in communications. We simply can't foresee all the ways that the Internet of the future -- the Next Generation Internet -- will be used or the full impact it will have.
In the last ten years, the Web was born, browsers have emerged and users have grown from 16 million to almost a Billion. It has created hundreds of billions of dollars of economic growth.
Do you remember when there were phone booths everywhere? When PCs had 30 Meg hard drives, 512K of memory and PC communication were 2400 bps? When phone messages came on little slips of paper? When Automated Teller Machines were still new technology? News and weather were only on TV at 6 pm and 10 pm. We were angry about gas prices going above $1.00. It was 1985 and there was no commercial Internet, no Web, and those UPC codes were not yet everywhere. Retailing had not changed much in the previous twenty years. Wal-Mart only had 882 stores mostly in the South and few thought that they would be a threat to the big five. There were no supercenter stores.
Just twenty years ago our lives were very different. We have changed how we work, how we play, how we shop. Much of the change has been due to technology developed during that same twenty years. Now most of us can't imagine living without the Web or Cable TV.
If you own a retail business today, then someone is either currently stealing from you or will at some time in the future. Just as sure as you can count on sales, you can count on theft.
Article:
If you own a retail business today, then someone is either currently stealing from you or will at some time in the future. Just as sure as you can count on sales, you can count on theft. Retail theft is at an all time high in the United States today. Because of the high theft rate, as a business owner you need to protect your assets in any way you possibly can.
The pervasive entitlement attitude in people today makes retail loss prevention a must for any business owner. Theft comes in many different varieties depending on your unique business.
With the speed by which technology evolves, it is not a surprise that the world has become 'smaller', in the sense that communicating with another person from the other side of the world has become instantaneous. Nowadays, almost everything is possible with the latest that technology has to offer, which brings numerous advantages to users around the world. One of the products of the continuous and advancing developments in technology is the GPS or Global Positioning System. GPS is global satellite navigational system which enables a GPS receiver to determine its specific location, direction and speed by measuring the distance between the receiver and three or more (out of the 24) medium Earth satellites. The GPS technology is currently being used for a multitude of military applications. Aside from its important application in the military, there is a wide array of civilian applications for the GPS technology, and numerous advantages to worldwide users.
Headphones can allow you to listen to whatever music you want wherever you want without bothering anyone else, but choosing the best headphones for you can be a challenge with so many options out there.
Do you want sealed headphones or open air headsets? Wireless or wires? Should you spring for noise cancelling? All these questions are enough to have anyone heading back home without a purchase! Here are some basics that might help with your decision.
Headset Design
There are 4 basic types of headphones - sealed, open, canal phones and earbuds. The style that is right for you is largely a matter of what you intent to do with them and how much money you have to spend.
The sealed headphones are those heavy clunky headphones that you think of when you picture studio musicians and stereo sets from the '70's.
It is a fact that the MP3 was a big thing in the past and still even today. With it, you were and are now able to store music files in your computer in a very convenient way. Unlike storing wav files, which may take a lot of space in your hard disk, MP3 provides CD quality music in a very small file size. In fact, you can even store up to 250 or more MP3 music files in a single gigabyte of hard disk space compared to a measly 25 or less of wav format music file. This means that it gave you the capability to store hundreds of thousands of music files in your computer.
Today, a new kind of file compression is now widely available in the market. In fact, it is now very popular to people who use the latest iPod players and PSP owners. This type of file compression is now providing a way to store DVD quality movies at a very small size.
