Is your date a 'stud or dud?' Ask your phone

If that dreamy blind date seems too good to be true, or the guy at the bar with a martini and a pencil-thin moustache looks a little sketchy, the truth about them -- or at least some of it -- could be found on your phone.

Designers at a pair of companies say their new applications for smartphones can tell you in real time whether someone is married or divorced, has a criminal record, has filed for bankruptcy or has any number of potential red flags in their past.

Using Google to search for information on a prospective romantic partner is standard practice for many single people in the digital age. But these new apps, combined with the growth of smartphones and wireless networks, now allow for quick background checks on the go, potentially before a date is even over.

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Hot video games for holiday shopping

Like a well-placed power-up, the right gift can light up the eyes of that video gamer in your life.

But for non-gamers, navigating the many offerings at your local store can be confusing. So with that in mind, here are suggestions, grouped by category, on some of the most buzzed-about games for holiday giving.

Make sure you know which gaming console (PlayStation, Xbox, Wii) your gamer has before you shop. Prices for these games will range from $30 to $60, depending on the store and any promotions or sales. Check online or at your local store for the latest pricing.

These are only a few of the games in demand this holiday season. If you have other recommendations, feel free to let us know in the comments area at the bottom of this story.

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Walkera Dragonfly CB-180D Super Stable Fixed Pitch RC HELI

Fossil fuel chemicals avoided in plastics by Koreans

A team of South Korean scientists have produced the polymers used for everyday plastics through bioengineering, rather than through the use of fossil fuel-based chemicals.

It is believed that the technique may now allow for the production of environmentally-friendly plastic that is biodegradable and low in toxicity.

The research focused on Polylactic Acid (PLA), a bio-based polymer which holds the key to producing plastics through natural and renewable resources. Polymers are molecules found in everyday life in the form of plastics and rubbers.

"The polyesters and other polymers we use everyday are mostly derived from fossil oils made through the refinery or chemical process," Professor Sang Yup Lee, who lead the research, said in a press statement.

"The idea of producing polymers from renewable biomass has attracted much attention due to the increasing concerns of environmental problems and the limited nature of fossil resources. PLA is considered a good alternative to petroleum-based plastics, as it is both biodegradable and has a low toxicity to humans."

Until now PLA has been produced in a two-step fermentation and chemical process of polymerization, which is both complex and expensive. The team used a metabolically engineered strain of E. coli and developed a one-stage process.

"By developing a strategy which combines metabolic engineering and enzyme engineering, we've developed an efficient bio-based one-step production process for PLA and its copolymers," said Lee.

"This means that a developed E. coli strain is now capable of efficiently producing unnatural polymers, through a one-step fermentation process.

"Global warming and other environmental problems are urging us to develop sustainable processes based on renewable resources.

"This new strategy should be generally useful for developing other engineered organisms capable of producing various unnatural polymers by direct fermentation from renewable resources."

The research team from KAIST University in Seoul and the Korean chemical company LG Chem published their findings in the journal "Biotechnology and Bioengineering".

Source : CNN

The New 32GB Ipod touch

The New OS by Google

Google today unveiled more details of Chrome OS, a lightweight, browser-based operating system for netbooks.

With a strong focus on speed, the Chrome OS promises nearly instant boot times of about 7 seconds for users to login to their computers.

"We want Google Chrome OS to be blazingly fast ... to boot up like a TV," said Sundar Pichai, vice president of product management for Google.

The first Chrome OS netbooks will be available in late 2010, Pichai said. It will not be available as a download to run and install. Instead, Chrome OS is only shipping on specific hardware from manufacturers Google has partnered with. That means if you want Chrome OS, you'll have to purchase a Chrome OS device.

Google is currently working with unnamed computer manufacturers to define specifications for these computers, which Pichai said will include larger netbook-style computers with full-size keyboards, large trackpads and large displays.

Chrome OS netbooks will not have traditional hard disk drives -- they will rely on non-volatile flash memory and Internet-based storage for saving all of your data.

All the applications will be web-based, meaning users won't have to install apps, manage updates or even backup their data. All data will be stored in the cloud, and users won't even have to bother with anti-virus software: Google claims it will monitor code to prevent malicious activity in Chrome OS web apps.

"Chrome OS is a totally rethought computer that will let you focus on the Internet, so you can stop worrying about your computer," according to a Google promotional video shown at the event, held at the Google campus in Mountain View, California.

As part of its announcement today, Pichai said that Google would be releasing all of the operating system's code and design documents to the public.

Introduced in July, Chrome OS is a Linux-based, open-source operating system centered on Google's Chrome browser. Applications will run exclusively inside the browser, Google said Thursday.

"As of today, the code will be fully open, which means Google developers will be working on the same tree as open developers," said Pichai.

The OS's focus on design is consistent with the company's stance that the future is in the web. In July, Vic Gundotra, Google's engineering vice president and developer evangelist, spoke on a panel about app stores, in which he said native apps (such as those available for the iPhone) would be obsolete in the future, and that the Web will "become the platform that matters."

"Every capability you want today, in the future it will be written as a web application," Pichai said Thursday.

Netbooks -- lightweight, low-powered sub-notebooks -- were the surprise hit of 2008 and 2009. However, with the growth of netbook sales slowing -- and the prices of some full-powered notebooks dropping below $400 -- the continued viability of the netbook sector is an open question.

Though netbook shipments are falling below manufacturers' expectations, the inexpensive, low-powered devices appear to still be selling well. Pichai cited research figures from ABI research indicating that 35 million netbooks shipped in 2009, more than twice the number sold in 2008.

Manufacturers have yet to announce pricing on netbooks shipping with Chrome OS, but Google expects the cost to be about the same as current netbooks. On average, netbooks cost between $300 and $500.

Videos demonstrating Chrome OS's user interface, security, fast boot and other features are below the jump.

Solar Photovoltaic Technology

Solar cells, also called photovoltaic (PV) cells by scientists, convert sunlight directly into electricity. PV gets its name from the process of converting light (photons) to electricity (voltage), which is called the PV effect. The PV effect was discovered in 1954, when scientists at Bell Telephone discovered that silicon (an element found in sand) created an electric charge when exposed to sunlight. Soon solar cells were being used to power space satellites and smaller items like calculators and watches. Today, thousands of people power their homes and businesses with individual solar PV systems. Utility companies are also using PV technology for large power stations.

Solar panels used to power homes and businesses are typically made from solar cells combined into modules that hold about 40 cells. A typical home will use about 10 to 20 solar panels to power the home. The panels are mounted at a fixed angle facing south, or they can be mounted on a tracking device that follows the sun, allowing them to capture the most sunlight. Many solar panels combined together to create one system is called a solar array. For large electric utility or industrial applications, hundreds of solar arrays are interconnected to form a large utility-scale PV system.

Traditional solar cells are made from silicon, are usually flat-plate, and generally are the most efficient. Second-generation solar cells are called thin-film solar cells because they are made from amorphous silicon or nonsilicon materials such as cadmium telluride. Thin film solar cells use layers of semiconductor materials only a few micrometers thick. Because of their flexibility, thin film solar cells can double as rooftop shingles and tiles, building facades, or the glazing for skylights.

Third-generation solar cells are being made from variety of new materials besides silicon, including solar inks using conventional printing press technologies, solar dyes, and conductive plastics. Some new solar cells use plastic lenses or mirrors to concentrate sunlight onto a very small piece of high efficiency PV material. The PV material is more expensive, but because so little is needed, these systems are becoming cost effective for use by utilities and industry. However, because the lenses must be pointed at the sun, the use of concentrating collectors is limited to the sunniest parts of the country.

Technologies to Reduce Ship Strikes of Large Whales

Vessel collisions (or “ship strikes”) are a threat to a number of marine vertebrate species world wide, particularly endangered large whale species. Various modifications to vessel and water craft operations have been used in an attempt to reduce the threat of ship strikes. Seeking ways to reduce the magnitude of the threat through technological solutions has been proposed by maritime industries, resource managers, and government agencies alike. Use of remote sensing technologies may provide means to reduce ship strikes while simultaneously allowing certain maritime commerce and other activities to proceed with limited biological and economic impact. However, low whale detection rates and constraints on the effective range of some devices to provide ample warning and response times for mariners may limit their utility in this context. In addition, development, installation, maintenance, and/or operation may be cost prohibitive in some cases.

This workshop was convened to (a) identify existing or emerging technologies that might be useful in reducing ship strikes, (b) assess the feasibility of each in reducing ship strikes, and (c) identify research and development timelines needed to make a given technology useful in reducing the threat. We discussed and, in directed small groups, assessed a number of remote sensing technologies, including visual surveys; tagging and telemetry; passive acoustics; active acoustics; thermal imaging (e.g., infrared); radar; and predictive modeling.

The workshop concluded that the problem of ship strikes is a complex one; there are no easy technological “fixes”; that no technology exists, or is expected to be developed in the foreseeable future that will completely ameliorate, or reduce to zero the chances of, ship strikes of large whales; and no single technology will fit all situations. Reducing the co-occurrence of whales and vessels is likely the only sure means of reducing ship strikes, but it is not possible in many locations. A variation, advanced voyage planning to avoid certain areas, is relatively more feasible. Technologies applicable to reducing ship strikes are limited almost entirely to those that enhance whale detection. Several technologies used in concert would increase the chances of detection both at a distance from, and in close proximity to, a vessel; and improve the likelihood of providing warnings to mariners. However, detection and relaying information about a whale’s location represents only part of the equation: the mariner must possess capabilities (e.g., adequate communication systems, adequate response time) to take evasive action to a detected whale. Responses to such information may vary among individual mariners and vessels, and substantial distances can be required for vessels underway to avoid, alter course, or even react to an object directly in their path particularly as higher speeds are considered.

All technologies assessed had certain advantages and disadvantages when considered relative to this problem. Visual surveys can be expensive, logistically complex, and are limited by low detection probabilities, poor weather, low-light conditions, and may be constrained to certain times of the year. Tagging devices are useful for studies of whale natural history and movement; and developments in power supply capabilities and reducing data transmission costs are resulting in growth of this
field. However, difficulties associated with tag attachment and attempts to attach devices to a sufficiently large portion of a population are proverbial challenges to this approach. Passive acoustic technologies are becoming a useful tool for studying whale occurrence and distribution, and the amount of data returned for cost investment makes this approach one of the most promising for detecting whale presence. However, this approach is constrained by only being able to detect whales that are vocalizing and determining specific location is not always possible. Some sonar devices appear effective in detecting whales within hundreds of meters of a vessel, although this range may be extended as technology improves. Depending on systems used, costs can be relatively high and false positives could be problematic. Radar devices can be used from ship or shore and have the advantage of operating in poor weather, but false positives are a potential problem. Thermal imaging (e.g., infrared) devices have proved promising in detecting whale blows at significant ranges in experimental studies. Models using remotely-sensed oceanographic features provide means to predict where whales may occur over large areas. As models, they are prone to uncertainty (i.e., predictive only), but some can be applied now. In all cases, studies are needed to confirm that any technology developed and used for this purpose are clearly capable of reducing strikes and to ensure that added environmental impacts are not introduced.

New Technology Prolongs Produce Freshness

Nutritionists encourage eating a healthy diet rich in fresh fruits and vegetables. In response, consumers flock to their grocery stores and stock up these healthful foods. Too often, though, produce spoils soon after purchase. This is becoming more common as more produce is imported from around the world.

The cause of the untimely spoilage is ethylene, a plant hormone that fruits and vegetables produce naturally as they ripen. Even at temperatures colder than 39° Fahrenheit, apples and avocados produce high quantities of ethylene. The situation is complicated when fruits and vegetables are packaged for long trips—as the air in the confined container circulates, the concentration of ethylene gas, even as low as .01 parts per million, accelerates the ripening of stored produce.

Postharvest losses due to spoilage, estimated at 30 to 40 percent worldwide, affect the economic success of growers, packers, storage houses, and distributors of produce.

With funding from USDA’s Cooperative State Research, Education, and Extension Service (CSREES), Dr. Reza Shekarriz and W. L. Allen of Fluid Analytics, Inc., in Lake Oswego, Ore., have developed a compact sensor to accurately measure low concentrations of ethylene on transport containers.

“This issue is becoming more critical as global trade and year-round consumption of fresh fruits and vegetables increases,” Shekarriz said. “Ethylene-related problems make up a significant portion of postharvest losses in developing countries, resulting in negative economic impacts worth billions of dollars every year.”

Produce freshness can be controlled by carefully monitoring and regulating exposure to ethylene during transport. Reducing produce exposure to ethylene slows the natural ripening process, thereby extending produce shelf life.

The new sensor continuously samples air at a regulated flow rate, normally 12 to 30 cubic inches of air per minute. Not only can the sensor detect ethylene at concentrations low enough to ripen produce, it also reports ethylene concentration in real-time to provide greater control over ethylene levels during transport.

“This sensor is far more sensitive to ethylene detection than previous technology. Future developments may increase sensitivity to provide better response times and will be integrated with ethylene scrubbers to actively remove ethylene from cold storage rooms and shipping containers” said Shekarriz.

This device is particularly important for organic produce that does not use other chemicals to control the ripening process.

The beneficiaries of this new sensing technology include horticulture and floriculture research institutions, growers, packing houses, cold-storage facilities, greenhouses, shipping containers, and consumers.

Scientists in the United States, Germany, England, France, and the Netherlands are already using prototypes of the ethylene sensor. Future work by this research team will focus on developing new technology to remove ethylene from an enclosed space to further reduce the complications of postharvest ripening.

This technology has been licensed to a French company, ABSOGER, for commercialization into the European cold storage market. The commercial units are expected to reach the market in mid-2009.