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Scientists accurately predict age using just a saliva sample

June 23, 2011

Geneticists at the University of California, Los Angeles, have discovered a way to use saliva to reveal how old you are.

The researchers used saliva samples contributed by 34 pairs of identical male twins between the ages of 21 and 55. They scoured the men’s genomes and identified 88 sites on the DNA that strongly correlated methylation to age. They replicated their findings in a general… read more

Scientists achieve first rewire of genetic switches

January 26, 2010

University of Manchester researchers have successfully carried out the first rewire of genetic switches, creating what could be a vital tool for the development of new drugs and even future gene therapies.

They rewired the genetic switches of bacteria so they are activated by a synthetic molecule instead of naturally occurring molecules found in cells.

Scientists achieve fuel gain exceeding unity in confined fusion implosion

February 13, 2014


The milestone of achieving fuel gains greater than 1 has been reached at the Lawrence Livermore National Laboratory (LLNL) National Ignition Facility (NIF) — for the first time ever at any facility.

Ignition — the process of releasing fusion energy equal to or greater than the amount of energy used to confine the fuel — has long been considered the “holy grail” of inertial confinement… read more

Scientists adapt economics theory to trace brain’s information flow

October 10, 2008

Researchers at Washington University School of Medicine and Florida Atlantic University have used the “Granger causality” technique, originally developed to use current economic data to forecast changes in the economy, to determine the flow of information from one part of the brain to another.

The economic technique involves comparisons of streams of data known as time series, such as fluctuations in the stock market index.

It will provide… read more

Scientists adroitly manipulate a quantum bit using laser light alone

May 6, 2013

An artist's rendering of all-optical control of an individual electronic spin within a diamond. This spin is associated with a naturally occurring defect in diamond known as the nitrogen-vacancy center, a promising quantum bit (qubit) for quantum information processing. In their recently published paper, Yale et al. develop techniques to initialize, manipulate, and read out the electronic spin of this qubit using only pulses of light. Image courtesy of Peter Allen. (Credit: UC Santa Barbara)

By using light, researchers at UC Santa Barbara have manipulated the quantum state of a single atomic-sized defect in diamond — the nitrogen-vacancy center — in a method that allows for more unified control than conventional processes.

The method is also more versatile, and opens up the possibility of exploring new solid-state quantum systems.

“In contrast to conventional electronics, we developed an all-optical scheme… read more

Scientists advance safety of nanotechnology

June 11, 2009

An autophagy inhibitor has counteracted nanoparticle-induced lung damage in mice from ployamidoamine dendrimers (cause lung damage by triggering programmed autophagic cell death), Chinese Academy of Medical Sciences researchers have found.

The findings suggest that compounds could be developed that could be incorporated into the nano product to protect against lung damage, or patients could be given pills to counteract the effects. The findings could also provide important insights into… read more

Scientists aim to boost world energy supplies — with microbes

April 30, 2008

Newcastle University and University of Calgary scientists expect to begin trials ih May to find out if microbes can unlock the vast amount of energy trapped in the world’s unrecoverable heavy oil deposits.

An estimated six trillion barrels of oil remain underground because the oil has become either solid or too thick to be brought to the surface at economic cost by conventional means.

The scientists’ research has… read more

Scientists allowed to experiment on hybrid embryos

May 18, 2007

Two teams of British researchers are seeking permission to create “cybrid” embryos that would be around 99.9 per cent human and 0.1 per cent animal to produce embryonic stem cells.

They want to use the stem cells to understand and provide new treatments for diseases such as Alzheimer’s, Parkinson’s, cystic fibrosis, motor neuron disease and Huntington’s.

Scientists and bankers — a new model army

April 12, 2012


Bankers must surrender more information on their activities to scientists to use it to build better system-wide financial models, says John Liechty, director of the Center for the Study of Global Financial Stability and Professor of Marketing and Statistics at Pennsylvania State University in University Park.

Existing financial models failed to predict the crisis of 2008 and the follow-on crisis of 2011–12. They missed the huge system-wide risks that… read more

Scientists Announce First 3-D Assembly Of Magnetic And Semiconducting Nanoparticles

June 27, 2003

Scientists from Columbia University, IBM and the University of New Orleans today announced a new, three-dimensional designer material assembled from two different types of nanoparticles.

In the June 26 issue of the journal Nature, the team describes the precision chemistry methods developed to tune the particles’ sizes in increments of less than one nanometer and to tailor the experimental conditions so the particles would assemble themselves into repeating 3-D… read more

Scientists Announce Top 10 New Species In Last Year

May 27, 2008

The International Institute for Species Exploration at Arizona State University and an international committee of taxonomists has just announced the top 10 new species described in 2007.

On the list are an ornate sleeper ray, with a name that sucks: Electrolux; a 75-million-year-old giant duck-billed dinosaur; a shocking pink millipede; a rare, off-the-shelf frog; one of the most venomous snakes in the world; a fruit bat; a mushroom; a… read more


June 25, 2002

Boron crystalline nanowires (“nanowhiskers”) may replace carbon nanotubes as nanoscale semiconductors.

Scientists Ask: What Is A Gene, Anyway?

December 17, 2002

Two years after the human genome was mapped, scientists are drawing a stunning insight by comparing human genes with those of mice. Researchers now agree human genes are definitely missing something; they’re just not entirely sure what. Figuring it out could involve arguments about the very definition of the word “gene.”

Scientists attach barcodes to mouse embryos — human ones coming soon

November 26, 2010

Bar-coded embryos (UAB)

Scientists from Spain’s Universitat Autònoma de Barcelona (UAB), along with colleagues from the Spanish National Research Council, have successfully developed an identification system in which mouse embryos and oocytes (egg cells) are physically tagged with microscopic silicon bar code labels. They expect to try it out on human embryos and oocytes soon.

The purpose of the system is to streamline in vitro fertilization and embryo transfer procedures. If egg… read more

Scientists Breed Cancer-Beating Mice

May 2, 2003

The fight against cancer could be helped by the discovery of a strain of mice which appear to have the ability to resist the disease.

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