Researchers provide road map for generating B cells from stem cells
...s from the University of Chicago present the first rough road map, suggesting how to lead a hematopoietic stem cell down the narrowing path to becoming an antibody-producing B cell. The researchers describe four critical stages on the way from a multi-potent precursor to a committed B-cell and suggest how ...UCSD researchers derive lessons about human evolution from chicken genome
...he sequencing of dog and chimpanzee are already in rough draft form, with large-scale analysis pending. Cattle, macaque and honeybee are just some of the 18 genomes on an international timeline for completion. The International Chicken Genome Sequencing Consortium includes scientists from China, Denmark, ...Evidence that human brain evolution was a special event
...a lot of mutations in a lot of genes. We've done a rough calculation that the evolution of the human brain probably involves hundreds if not thousands of mutations in perhaps hundreds or thousands of genes -- and even that is a conservative estimate." It is nothing short of spectacular that so many mutati...Study in Royal Society journal on sense of fairness in chimpanzees
...milton long-wave expansions for water waves over a rough bottom by Professor W Craig, Dr P Guyenne, Dr DP Nicholls and Dr C Sulem This paper is a study of wave motion in the surface of a fluid body with a variable depth. The problem is important to coastal oceanography, where bathymetric variations cont...Time to rewrite the species rulebook, MSU scientists say
... Scientists have long exploited this fact in their rough rule-of-thumb approach for saying just what makes up a species of bacteria. Single strands of DNA from two bacteria are mixed together. If most of these strands reassociate specifically, if 70 percent of strands from bacteria A come together with st...Teams build robots that walk like humans
..., and may eventually allow robots to navigate very rough terrain. That's because the program works so quickly that Toddler is able to continuously adapt to the terrain as it walks. Tedrake will demonstrate Toddler at a press briefing Feb. 17 at the annual meeting of the American Association for the Advanc...Modular Genetics, Inc., strikes deal with Monsanto
...seed to full-fledged company," says Brennan. "The rough economic patch we've recently weathered has made fund-raising difficult. But we've remained innovative in how and where we look for support to grow our companies. This collaboration between Monsanto and MGI reflects one success from that sort of in...At the molecular level, the predator is the prey
...in this week's Nature that a toxin produced by the rough skinned newt, Taricha granulosa, has forced several evolutionary changes in the garter snake Thamnophis sirtalis or, more specifically, in the snake nerve cell protein that endures the toxin's attacks. Embedded in the surface of garter snake nerve ce...Light scattering method reveals details under skin
... polarization to minimize light scattered from the rough skin surface, and positioned the light source in multiple locations to separate out, and delete, light scattered more than one time from deeper sample layers. By using certain polarization settings and combining two images made with the light source ...Viral protein influences key cell-signaling pathway
... network of membranes within the cell known as the rough endoplasmic reticulum (RER). Among other things, the RER helps regulate the amount of calcium in the cell. The investigators found that the p12 protein allows calcium to leak out of the RER, thereby causing calcium levels to rise elsewhere in the cel...Migration study finds that sweeping management changes are needed to protect Atlantic bluefin tuna
...t 10 years, she and her colleagues have braved the rough waters of the Atlantic Ocean to carry out an unprecedented study of bluefin tuna migrations. Working with sport and commercial fishers in the Carolinas and New England, as well as commercial fleets in the Gulf of Mexico, TRCC researchers have placed ...Killer dinosaurs turned vegetarian
...l enthusiast John Scandizzo provided Kirkland with rough coordinates to the therizinosaur site, but Kirkland could not locate it. So Scandizzo introduced Kirkland to Lawrence Walker, who had taken fossils from the site. Walker led Kirkland to the site. Kirkland soon applied for a digging permit from the ...New technique helps identify multiple DNA regulatory sites
...said, "we used a machine learning technique called rough sets to mathematically model general rules that co...e June issue of the journal Genome Research. The rough sets technique was developed by Zdzislaw Pawlak in Poland in the 1980s and is particularly suitable ...York scientists warn of dramatic impact of climate change on Africa
...going it looks like Africa is going to be in for a rough ride over the next few decades," Dr Lovett said.......rally important traits, a previous IRGSP-generated rough draft of the rice genome sequence--made publicly available in 2002--has already spurred both biotechnological and conventional plant breeding approaches to increasing rice yields. The newly-reported, finished rice genome sequence has the potential to...Ranks of 'environmental refugees' swell, calls grow for better definition, recognition, support
...event rising sea levels swamp the country. By one rough estimate, as many as 100 million people worldwide live in areas below sea level and / or are subject to storm surge. "Around the world vulnerability is on the increase due to the rapid development of megacities in coastal areas," says Dr. Oliver-Smit...Fruit fly research set to revolutionize study of birth defects
... have bent legs (and wings), tufts of bristles and rough eyes." While identifying this gene array is significant in its own right, the successful use of fruit flies in this kind of study is a revelation to the researchers who view it as an efficient model for the initial testing of "rescue" therapies to ...Watch your step when the going gets rough
...t of situation people encounter when rambling over rough terrain, where they need to accurately place their feet on well defined targets. Getting it right may avoid your slipping or twisting an ankle. "This visual guidance mechanism could also help gymnasts on the beam, or acrobat walkers on a tightrope, a...File compression can expand mammography's power
...mooth edges, for example, or cancerous tumors with rough edges - up to large-scale patterns in tissue fiber. "The edges of tumors are where growth occurs, and they tell radiologists whether what they see is a tumor or not," Lucier said. "You have to keep all these features intact when you compress the imag...Penguins waddle but they don't fall down, UH researchers say
...ough these endearing animals may seem unsuited for rough terrain, penguins will travel more than 75 miles across rugged ground terrain to reach their nesting sites. Kurz believes the penguins have learned to use the waddling motion in a way that makes their movements more efficient, adjusting for the limi...