chemical
The sperm of male fruit flies are coated with a chemical 'sex peptide' which inhibits the female's usual afternoon siesta and compels her into an intense period of foraging activity.
New work by chemists at UC Davis shows that ethylene, a gas that is important both as a hormone that controls fruit ripening and as a raw material in industrial chemistry, can bind reversibly to tin atoms. The research, published Sept. 25 in the journal Science, could have implications for understanding catalytic processes.
New research announced today, Wednesday 30th September, by a team of leading scientists working with the UK's national Synchrotron, Diamond Light Source, could have a significant impact on the development and refinement of new eco-friendly pest control methods for worldwide agriculture.
ANN ARBOR, Mich.---University of Michigan physicists have created the first atomic-scale maps of quantum dots, a major step toward the goal of producing "designer dots" that can be tailored for specific applications.
Although arsenic (As) occurs ubiquitously in the environment and has been used since its isolation in 1250 A.D in various fields such as medicine, metallurgy, agriculture and electronics, it is undoubtedly best known for its toxicity to both plants and animals. The toxic effects of arsenic in humans range from skin lesions to cancer of the brain, liver, kidney and stomach.
WASHINGTON -- Plumes of harmful air pollutants can be transported across oceans and continents -- from Asia to the United States and from the United States to Europe -- and have a negative impact on air quality far from their original sources, says a new report by the National Research Council.
Pasadena, Calif. -- Researchers at the California Institute of Technology (Caltech) have proposed a novel model that differs from a widely held hypothesis about the mechanisms by which developing animals pattern their tissues and structures.
NASA's MESSENGER spacecraft, which is toting an $8.7 million University of Colorado at Boulder instrument, will make its third and final flyby of Mercury on Sept. 29 -- a clever gravity-assist maneuver that will steer it into orbit around the rocky planet beginning in March 2011.
(Hamilton, Ontario -- Sept. 25, 2009) - Antibiotic resistance has been a significant problem for hospitals and health-care facilities for more than a decade. But despite the need for new treatment options, there have been only two new classes of antibiotics developed in the last 40 years.
Space
When we contemplate the evolution of the universe from big bang to the present time one wonders at the different forms of our universe from the inception of time. Can any one come out roughly with the number of forms sprung from the same universe? At each point in time, we have discovered a new form being evolved. What are these forms and how significant they assume in their evolution of 13 billion and odd years?
I wrote in my first blog ‘Modern Cosmology’ at http://www.rsridharan.blogspot.com/ that how do we combine all the different factions of the universe into a single format. Some of my friends in different science forums ridiculed at me although some others appreciated and even wondered at my blog. To those who are yet to discern my point in my first blog, here is the simple answer. When we go back from the present to the beginning of the universe, we can see that all different aspects of the present day Universe were once combined into a single point in time! This is what I meant. Isn’t that true and so simple?
And so we begin our journey from the start of the time to the present day evolution.
You're not as different from Albert Einstein and Charles Darwin after all, at least when it comes to patterns of correspondence.
A new Northwestern University study of human behavior has determined that those who wrote letters using pen and paper -- long before electronic mail existed -- did so in a pattern similar to the way people use e-mail today.
PITTSBURGH -- Regenerative medicine researchers at the University of Pittsburgh received two grants totaling more than $5 million from the National Institutes of Health (NIH) to explore new methods for cultivating replacement cells from existing tissues and organs.
Results of a new study add evidence that climate swings in the northern hemisphere over the past 12,000 years have been tightly linked to changes in the tropics.
Compounds related to Viagra, which is already in clinical trials to prevent heart failure, may also counter the disease in a different way, according to a study published online today in the journal Circulation Research. The results hold promise for the design of a new drug class and for its potential use in combination with Viagra or beta blockers.
RICHLAND, Wash. -- Catalysts convert useless or unwanted chemicals into useful or more desirable ones. Research in this week's Science reveals new, important details about a common catalyst: how rafts of chemically reactive platinum form in the catalyst.
