In the News
[Ironic] Professional beggars prowling about the streets of Moroccan c
The government plans to crack down on the scam used by faux beggars in growing numbers for a kind of "emotional blackmail", a cabinet minister was quoted as saying... How Embryos Regulate Vitamin A Derivatives: Too Much Or Too Little Lin
Human embryos that get too much or too little retinoic acid, a derivative of Vitamin A, can develop into babies with birth defects. New research shows for the first time how embryonic cells may regulate levels of retinoic acid, giving scientists insight into how it acts as a signal between cells to control development of the brain, limbs and many other tissues in embryos. Progesterone Therapy Could Prevent Thousands Of Preterm Births
Nearly 10,000 preterm births could have been prevented in 2002 if all pregnant women at high risk for a premature baby and eligible for weekly injections of a derivative of the hormone progesterone had received them, according to a new study published in the February issue of Obstetrics &Gynecology. Handsome By Chance: Why Humans Look Different From Neanderthals
Chance, not natural selection, best explains why the modern human skull looks so different from that of its Neanderthal relative. The scientists concluded that Neanderthals did not develop their protruding mid-faces as an adaptation to icy Pleistocene weather or the demands of using teeth as tools, and the retracted faces of modern humans are not an adaptation for language, as some anthropologists have proposed. Instead, random "genetic drift"is the likeliest reason for these skull differences. Cross-country runabouts: immune cells on the move
In order to effectively fight pathogens, even at remote areas of the human body, immune cells have to move quickly and in a flexible manner. Scientists have now deciphered the mechanism that illustrates how these mobile cells move on diverse surfaces. The Fund for Peace
The mission of the nonprofit Fund For Peace is "to prevent war and alleviate the conditions which cause war."The group's website features the annual Failed States Index (ranking countries "based on their social, economic, and political pressures") and reports on the Iraq conflict, globalization and human rights, peace and stability operations, and related topics. Additional material is subscription-based. Wired Test 2007: Burning Question - How Hard Is Switching From PC to M
Switching to a Mac is not as easy as just buying one, but Apple has brought the two platforms closer together so it's not the minefield it once was. We point the way to a smooth migration of data, e-mail, apps and games, and show you how to navigate the OS itself, which can seem alien to longtime PC mavens. Fight Against HIV Needs Local Scientists, Say Researchers
Scientists from developing countries are vitally important in the fight against HIV and they must be given the proper resources to conduct their work, according to a new commentary published today in the journal Nature Immunology. Researchers from Imperial College London, who are evaluating multiple candidate vaccines designed to prevent HIV, argue that Western governments and funding agencies must commit to sharing technology and expertise with those in the developing world on a long-term basis. Ultra High Speed Internet On The Horizon
The ultra-high data speeds possible on optical fiber networks will only come into their own when the fibers reach the last mile into everyone's home. But that will require miniaturization and integration of optical components on a scale not yet seen. European researchers may have some of the answers. Broadband access has transformed the economic potential of the internet. But the ADSL technology that delivers broadband to homes over traditional copper telephone wires is reaching its limit of around 10 megabits per second. If we want speeds ten times faster then we need to replace the copper with optical fibers. Smallpox Evolved Earlier Than Believed, According To Molecular Clock A
Smallpox is older than previously thought. Researchers created a molecular clock by looking at the rate of random mutations in the smallpox-causing virus collected in 47 locations around the world, from 1946 -- 1977. The variation between the strains was compared to sequences from the most similar animal poxes. The results indicated that a mild and more severe strain diverged either 16,000 or 68,000 years before present, depending on whether accounts from East Asia or Africa are used to calibrate the molecular clock. In either case, this divergence stretches further back in time than previously believed.
MP3 Music Downloads
Preview songs, Download Free Music,Burn CDs at ITunes.com
 
|
