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Archive for September, 2006|Monthly archive page

Cashew to play role in nanotechnology

In nano on September 7, 2006 at 9:58 pm

Thursday, September 7th, 2006

The cashew nut will soon have a bigger role to play – in nanotechnology…Cashew nut shell liquid (CNSL) — the fluid inside the shell casing of the cashew contains anacardic acids which are useful in preparing magnetic ‘nanofluid,’
Original source and text

Scientists identify brain’s concept control core

In Uncategorized on September 6, 2006 at 10:24 pm

Wed Sep 6, 2006 12:41 PM BST

By Jeremy Lovell

NORWICH (Reuters) – Scientists believe they may have finally identified the part of the brain that deals with the critical issue of matching words to everyday objects.

Using brain scans of people suffering from Semantic Dementia — the second most common form of dementia after Alzheimer’s disease in people under 65 — they have found that the front end of the temporal lobe seems to be crucial to conceptual application.
Reuters

FDA approves first implantable artificial heart

In Health on September 6, 2006 at 2:46 am

By Val Brickates Kennedy, MarketWatch
Last Update: 3:23 PM ET Sep 5, 2006

BOSTON (MarketWatch) — The Food and Drug Administration has given the green light for the use of Abiomed’s artificial heart device, called AbioCor, in terminally ill cardiac patients, the agency said Tuesday.
According to the FDA, AbioCor is the first fully-implantable artificial heart for patients with advanced failure in both heart chambers. The device will be available only to patients who have about a month to live and are not eligible for a heart transplant.
Link to Source

Developing world is new frontline in heart disease

In Health on September 6, 2006 at 1:39 am

Last Updated: 2006-09-05 12:37:22 -0400 (Reuters Health)

By Ben Hirschler

BARCELONA (Reuters) – Heart disease, usually seen as a quintessentially Western problem, is rapidly becoming a major threat to the developing world, costing millions of lives and billions of dollars, top cardiologists said on Tuesday.

Worsening diets, lack of exercise and smoking mean heart attacks and strokes are taking a mounting toll on poorer countries, experts told the World Congress of Cardiology.

“They now cause four times as many deaths in mothers in most developing countries than do childbirth and HIV/AIDS combined,” said Professor Stephen Leeder of the University of Sydney.
Link to Source

Nanotechnology coating is battling hospital superbugs

In Health, nano on September 6, 2006 at 1:31 am

Nanovations Pty Ltd, based in Sydney, Australia, introduces Bioni Hygienic, the first anti-bacterial and antimicrobial Nanotechnology based wall coating for hospitals, which can even destroy antibiotic resistant super bugs like the Staphylococcus Aureus or MRSA.

Unlike other paint systems, where the incorporated anti bacterial function will loose its effect over time, through the evaporating of the biocides, the nano-particles used in Bioni Hygienic are solid bodies. Therefore the system’s efficiency retains its effect permanently.
Link to Source

FDA Forms Internal Nanotechnology Task Force

In nano on September 6, 2006 at 12:39 am

8/15/2006

An internal nanotechnology task force has been formed by the FDA, says acting commissioner, Andrew C. von Eschenbach, M.D. The new task force is charged with determining regulatory approaches that encourage the continued development of innovative, safe, and effective FDA-regulated products that use nanotechnology materials.

Specifically, the task force will:
• chair a public meeting on October 10, 2006 to understand developments in nanotechnology as they pertain to FDA-regulated products,
• evaluate the effectiveness of the agency’s regulatory approaches and meet any unique challenges presented by nanotechnology,
• explore the opportunities to foster innovation using nanotechnology,
• strengthen collaborative efforts with other federal agencies involved in the Nanotechnology Initiative and foreign government regulatory bodies, industry, and consumers, and
• consider appropriate vehicles for communication with the public about the use of nanotechnology in FDA-regulated products.

The task force is expected to submit its findings and recommendations to the acting commissioner by July 2007.
Link to Source

Public Overwhelmingly Supportive of Genetic Science and its Use for a Wide Variety of Medical, Law Enforcement and Personal Purposes

In Uncategorized on September 5, 2006 at 10:25 pm

Most U.S. adults are opposed to its use by employers and insurers

ROCHESTER, N.Y., Aug. 30 /PRNewswire/ — According to a new Wall Street
Journal Online/Harris Interactive Healthcare Poll, the public is almost
unanimous in its opinions on the science of genetics and the use of DNA.
While only five percent of all adults have ever had a genetic test to study
their DNA, the vast majority of U.S. adults (93%) feel that genetic science
is a good thing, and few (only 1%) feel it is a bad thing. Furthermore,
most adults are supportive of using genetic information for purposes such
as to identify criminals (93%) and to treat disease (87%).
These are some of the results of a Harris Interactive(R) online survey
of 3,091 U.S. adults, conducted between August 10 and 14, 2006 for The Wall
Street Journal Online’s Health Industry Edition (http://www.wsj.com/health).
The vast majority of adults strongly or somewhat support the use of
genetic information for:
— Identifying criminals in rape, murder and other crimes (93%)
— Establishing paternity (whether a man is or is not the father of a
child) (92%)
— Research by scientists to find new ways to prevent or treat diseases
(91%)
— Genetic testing by doctors to identify diseases for which people are
at risk (88%)
— Genetic therapy to treat people who have, or are likely to get, a
particular disease (87%)
— Tracing one’s family tree and ancestors (85%)
— Screening potential parents for inherited diseases or genetic
weaknesses at fertility clinics (72%)
On the other hand, when it comes to issues that could affect their jobs
or insurance coverage and costs, adults do not want DNA science to play a
role. Approximately four out of five adults strongly or somewhat oppose the
use of genetic information by:
— Employers to help decide whether to employ somebody (81%)
— Life insurance companies to determine who to insure or how much to
charge (80%)
— Health insurance companies to determine who to insure and how much to
charge (80%)
Link to full article

EGYPT: UN FOOD AGENCY PROJECT CREATES RECORD-SETTING RICE YIELDS

In Uncategorized on September 5, 2006 at 9:57 pm
New York, Sep  5 2006  2:00PM
A United Nations Food and Agriculture Organization (FAO) led project that uses hybrid varieties of rice to increase production has resulted in unprecedented yields of the staple crop in Egypt, the agency said today.

“The world’s highest national average rice yield in 2005 was 9.5 tonnes per hectare from Egypt,” said Mr. Nguu Nguyen, Executive Secretary of the International Rice Commission, at an international scientific conference on sustainable rice production in Krasnodar, Russia.

Hybrid rice varieties developed locally, such as SK 2034 and SK 2046, outperformed the best Egyptian varieties by 20 to 30 per cent, according to the FAO.

The project, aimed at growing more rice with less water and less land, also involved training seed breeders, production personnel, extension workers and farmers.

Despite the project’s success, the FAO warns that hybrid rice seed production is not a global cure-all since many countries lack the technical skills and infrastructure to carry out such programmes.

Those countries could benefit more from improved crop management techniques, such as setting planting dates to expose crops to higher solar radiation, optimizing seeding density, balanced plant nutrition and careful water management, the FAO says.

Rice is the world’s most widely-consumed food – some 618 million tonnes were produced in 2005.  With the world’s population growing by more than 70 million a year, the FAO estimates that an extra 153 million tonnes of rice will be needed by 2030.
 2006-09-05 00:00:00.000 For more details go to UN News Centre at http://www.un.org/news

First test results on a new nano electric generator

In Health, nano on September 5, 2006 at 3:41 pm

8/26/2006 1:50:26 AM
Researchers report the first detailed results of electric power generation with a new technique that could drive implantable medical devices, sensors and portable electronics without the need for bulky batteries or other energy sources. Instead of batteries, electricity for such devices would come, for instance, from muscle contraction or other body movements, according to Zhong Lin Wang and colleagues.
Link to Source see also Nanogenerators get their power from body movement, blood flow by George Elvin

Viet kieu brings home the new technology

In nano on September 4, 2006 at 4:54 pm

15:35′ 04/09/2006 (GMT+7)

Like many other Viet kieu (overseas Vietnamese), Nguyen Chanh Khe missed home just too much to accept the job offers being thrown his way by large US companies.

And now Vietnam is reaping the benefits of the prodigy’s return after years working in Japan and America.

His recent invention, the first carbon nanotube material in Vietnam, is a breakthrough for the hi-tech industry throughout developing nations – a success that promises to pave the way for Vietnam in the computer microchips and semiconductor world market.

R&D pays off

Carbon nanotubes (CNTs) have been deemed “the material of the century” by scientists because of its extraordinary strength and unique electrical properties that conduct heat efficiently and can be useful in material sciences like nanotechnology, electronics and optics.

Since carbon nanotubes have such universal applications, they are costly to produce; therefore, the world market asks for about US$1,000 per gram.

Before Khe revamped the production process, plants were using a plasma chemical vapour deposition for a costly $200,000 to synthesise CNTs. But Khe’s method required just a special chemical reaction and facilities which cost only $600-700.

“I can say for sure that our CNTs have the same molecule structure to the products in the world market and are very pure but they will be much cheaper,” Khe said.
Link to Source

Down Syndrome births drop in state

In Uncategorized on September 3, 2006 at 10:19 pm

Sunday, 09/03/06

Decline suggests abortions up in wake of better tests


Amid new testing procedures during pregnancy, the percentage of babies born with Down syndrome has plummeted nationwide since the late 1980s, researchers have found.

The trend — which is less pronounced in Tennessee than elsewhere — suggests to some researchers that more women are opting to terminate Down syndrome pregnancies, raising alarm among some ethicists and disability rights advocates.

Tennessean.comLink to Source

Big Wheels for Little Cars

In nano on September 3, 2006 at 9:15 pm

Chemists build the world’s smallest auto dealership, molecule by molecule. No toy models, these cars actually drive. The most prolific car manufacturer on the planet resides in a Rice University laboratory in Houston, where chemist James Tour and his colleagues have built one trillion trillion nanoscopic cars. The tiny four-wheeled vehicles are only four billionths of a meter wide—25,000 of them parked side by side would be about as thick as a piece of paper. Not just another nano-gimmick, Tour’s cars could one day carve tiny channels in silicon, creating more-powerful computer chips.

Although other groups have made nanocars that slip or slide across a surface, Tour’s team is the first to construct ones with actual rolling wheels. To get the cars moving, scientists either heat an atomically smooth gold roadway (the temperature difference incites the wheels to spin) or use a scanning tunneling microscope to emit a beam of electrons that drags the car along by static electricity. In the future, Tour hopes to install an active propulsion system. “What we want to do now is put an internal motor in there and drive the thing,” he says.

Several different motors are in the works, including a photon-powered version [see illustration below]. Tour is also fine-tuning new 2006 models, including a nanotruck capable of transporting molecules, such as oxygen. Before long, he says, “we’ll have a little Daytona 500.”
Link to Source

Nanowater

In nano on September 3, 2006 at 6:24 pm

Hi everybody,
my next column is available. It includes nno stuff and the issue of disabled people and water and sanitation
Click here

history of and future columns here
Any comments welcome
Cheers
Gregor

Atlas of Poverty

In Uncategorized on September 3, 2006 at 6:20 pm

Where the Poor Are: An Atlas of Poverty brings together a diverse collection of maps from different continents and countries, depicting small area estimates of vital development indicators at unprecedented levels of spatial detail.

The atlas is a product of the CIESIN Global Poverty Mapping Project, begun in 2004, which was made possible by support from the Japan Policy and Human Resource Development Fund, in collaboration with The World Bank. The atlas of 21 full-page poverty maps reveals possible causal patterns and provides practical examples of how the data and tools have been used, and may be used, in applied decisions and poverty interventions.

Link to the original Source

Global water crisis looms larger

In Uncategorized on September 3, 2006 at 6:08 pm
  • 13:00 21 August 2006
  • NewScientist.com news service
  • Andy Coghlan
  • One-third of the world’s population is short of water – a situation we were not predicted to arrive at until 2025 – according to a disturbing new report on the state of the world’s water supplies. Squeezing more out of every raindrop that falls on poverty-stricken regions of Africa and Asia is key to the survival of the world’s poorest and most malnourished people, researchers say. The report by the International Water Management Institute in Colombo, Sri Lanka, was released on Monday in Stockholm at the start of World Water Week. It paints a bleak picture of global access to fresh water and warns that the world cannot carry on complacently using water as if it will never run out. “Business as usual is not an option,” says David Molden of the institute, and coordinator of the report, called Insights from the Comprehensive Assessment of Water Management in Agriculture. It concludes that one-third of the world’s population now suffers water scarcity, a situation that has materialised 20 years sooner than predicted by an assessment five years ago.

Link to Source

Health experts: Obesity pandemic looms

In Health on September 3, 2006 at 5:40 pm

Yahoo news By ROHAN SULLIVAN, Associated Press Writer
The World Health Organization says more than 1 billion adults are overweight and 300 million of them are obese, putting them at much higher risk of diabetes, heart problems, high blood pressure, stroke and some forms of cancer. World Health Organization says more than 1 billion adults are overweight and 300 million of them are obese, putting them at much higher risk of diabetes, heart problems, high blood pressure, stroke and some forms of cancer.

Zimmet, a diabetes expert at Australia’s Monash University, said there are now more overweight people in the world than the undernourished, who number about 600 million.
Link to Source

Some university-based nano labs around the world

In nano on September 3, 2006 at 12:35 am

Center for Nano Science and Technology at Notre Dame University lists over 100 weblinks to university-based labs around the world.
Link to Source

No Hydrogen Economy Needed: Existing Tech Could Replace Fossil Fuels

In Uncategorized on September 2, 2006 at 10:24 pm

Friday, September 01, 2006
A new road map to decarbonization says we already have all the technology we need, we just need to spend more money to implement it. By Kevin Bullis
Link to original Source

'Nanocantilevers' Yield Surprises Critical for Designing New … – Newswise (press release)

In nano on September 2, 2006 at 10:12 pm

‘Nanocantilevers’ Yield Surprises Critical for Designing New … – Newswise (press release)

‘Nanocantilevers’ Yield Surprises Critical for Designing New
Newswise (press release) – 6 hours ago
cantilevers also contained a greater density of antibodies, which was very unexpected,” said Rashid Bashir, a researcher at the Birck Nanotechnology Center and

[via Nanotechnology – Google News ]

Application-Specific Development and Strategic Partnerships Drive … – Business Wire India (press release)

In nano on September 2, 2006 at 10:12 pm

Application-Specific Development and Strategic Partnerships Drive … – Business Wire India (press release)

Application-Specific Development and Strategic Partnerships Drive
Business Wire India (press release), India – Aug 30, 2006
Advancements in the nanotechnology industry promise to offer improvements in capabilities across a spectrum of applications. This

[via Nanotechnology – Google News ]