Two new studies on circadian rhythms

Dartmouth Medical School geneticists have made new inroads into understanding the regulatory circuitry of the biological clock that synchronises the ebb and flow of daily activities, according to two studies...

Cooperative cichlids boost their own reproductive success

Subordinate individuals living within a group of vertebrates sometimes assist a more dominant pair by helping to raise the dominant pair's offspring and this has been shown to occur among...

Rational Design Of Vaccines: A Long But Essential Journey

The holy grail of the defense mechanism against infectious diseases and tumors has not yet been discovered. In the search for a ‘master switch’ in the immune apparatus of humans...

For different species, different functions for embryonic microRNAs

(PhysOrg.com) -- When evolution has lucked into efficient solutions for life`s most fundamental problems, it adopts them as invaluable family heirlooms, passing them down as one species evolves into another....

Stem Cell Research Made Safer with Latest Discovery

(PhysOrg.com) -- A new development in stem cell research has resulted from a completed study by a collaboration of scientists using the drug Rapamycin to inhibit mTOR, an intracellular protein...

Human noses too cold for bird flu

Bird flu may not have become the threat to humans that some predicted because our noses are too cold for the virus to thrive, say UK researchers.

Australia halts cull of kangaroos

An Australian court orders a temporary halt to the killing of thousands of kangaroos, pending a scientific review.

Identification of a key molecular pathway required for brain neural circuit formation

The research group of Dr. Frédéric Charron, a researcher at the Institut de recherches cliniques de Montréal (IRCM), has made a discovery which could help treat spinal cord injuries and...

Well: Sober in the Animal House

A 19-year-old with liver disease writes about life as an alcohol-free college student.

Role for CISD2 gene in human disease and lifespan control

In the May 15th issue of G&D, Dr. Ting-Fen Tsai (The National Yang-Ming University, Taiwan) and colleagues present a new animal model of human Wolfram Syndrome, and effectively link CISD2...

Pair of Bionic Ears Helps to Distinguish Left from Right

Can a pair of bionic ears benefit a hearing-impaired child? Cynthia Zettler, a postdoctoral fellow in Ruth Litovsky's laboratory at the University of Wisconsin-Madison thinks so.

How the Brain Changes as We Grow Up

Brains scans show how the brain's organization changes from childhood to adulthood. Brain regions are represented by circles. The outer color of the circle symbolizes the location in the brain...

Even In Our Genome, Good Fences Make Good Neighbors

Our genome is a patchwork of neighborhoods that couldn't be more different: Some areas are hustling and bustling with gene activity, while others are sparsely populated and in perpetual lock-down....

Most flowers give bees Velcro-like support

CAMBRIDGE, England, May 15 (UPI) -- Tiny pyramid-shaped cells found on 80 percent of flowers provide a Velcro-like surface on which bees hook their feet, British scientists reported...

Dire warnings of insect extinctions may be wide of the mark

One in ten species of dragonfly is threatened with extinction, a global survey reveals. But that's better than expected

The end of the line for existing stem cell research?

Time is short for scientists to respond to the call for comments on the National Institutes of Health (NIH) proposed guidelines for the use of human embryonic stem (ES) cell...

Researchers identify key proteins needed for ovulation

Researchers from the National Institutes of Health and other institutions have identified in mice two proteins essential for ovulation to take place...

Discovery on Boston Harbor Islands could help stop damage caused by exotic species

The recent findings by a team of Northeastern University ecologists studying plant life on the Boston Harbor Islands may advance societal efforts to stem the damage caused by invading exotic...

More about the genomic patterns of the world's human population structures

Through sophisticated statistical analyses and advanced computer simulations, researchers are learning more about the genomic patterns of human population structure around the world...

Advances in HIV research - mice formed antibodies against HIV protein

A research team at Oerebro University in Sweden has succeeded in changing the genes in plants so they can function as a vaccine against HIV. Through gene modification the plants...

Six million to complete atlas of the English Channel

The European Regional Development Fund has made an award of EUR5,825,462 for the completion of the third and final phase of the Channel Habitat Atlas for Marine Resource Management (CHARM),...

ERK1 and ERK2 activities are key to ovarian functions and fertility

Two enzymes called extracellular signal-regulated kinases (ERK1 and ERK2) are critical factors in a pathway that induces ovulation, maturation of the mammalian egg (oocyte) and other activities key to ovarian...

Managing Douglas-fir Forests For Diversity

Creating diverse forests for multiple uses is important to natural resource managers and landowners. The findings from a 1983 study conducted in southwestern Oregon provide forest managers with information that...

Blockbuster Ocean Drugs on the Horizon?

As leads for new drugs on land dry up, medicine hunters are plunging into the oceans in search of the next major pharmaceutical.

Scientists develop tool to study a deadly parasite`s histone code

(PhysOrg.com) -- In the Japanese art of paper folding, a series of folds can make the same sheet of paper into a ballerina or baby elephant. But try unfolding the...

Tall story: Scientists fail to get to the bottom of giraffe evolution

New research fails to solve the riddle of the giraffe's long neck.

In praise of ... orang-utans

Sniffing Out The Physical Condition Of Other Animals Of The Same Species

The sense of smell (olfactory mechanism) supplies an abundance of important information: detecting and evaluating the quality of foodstuffs, remotely perceiving possible hazards, recognizing territorial boundaries, subconsciously activating memories considered...