Stem cells help brain repair, make new neurons and blood vessels after stroke
...is highly affected. Then you have this area like a shell surrounding the core, called the penumbra, like a shadow, that has a gradient of damage as you move from the core of the stroke to the unaffected tissue. This is the area that is going to be the most sensitive to being repaired. So maybe if we can en...Natural antifreeze yields secrets
...s (minus 76 F), the proteins are surrounded with a shell of liquid water and are constantly moving and changing shape. "Normally at this temperature, proteins are pretty much solid," said Yin Yeh, professor of applied science at UC Davis. The random structure stops ice crystals from growing and preserves ...Scientists solve first flavivirus structure
...ope protein organizes itself to form a protective shell around the virus. The protein shell is made up of 60 subunits to form a 20-sided sphere. The shell serves as a cage for the genetic mate...Remains of seven types of edible nuts and nutcrackers found at 780,000-year-old archaeological site
...Seven species of edible fruits covered with a hard shell were found at the site: wild almond; prickly water lily; acorns from the Q. calliprinos evergreen and the Mt. Tabor oak; Atlantic pistachio; pistachio; and water chestnut. Most of them only can be cracked open by a hard hammer. They all have a high n...Origins of 'modern' behavior might be linked to population pressures
...cedented proliferation" of personal ornaments like shell beads and pendants. The upswing in personal ornamentation might be a sign of Paleolithic population increases as well, said Stiner and Kuhn. "Ornamentation is universal among all modern human foragers," said Stiner, noting that these groups use the o...Researchers at TSRI turn viruses into enhanced nanochemical building blocks
...us, called cowpea mosaic virus, which looks like a shell under the microscope. The shell is some 30 nanometers in diameter and is formed by 60 identical copies of a viral protein. It has an...Rutgers cell biologist sees new HIV treatment potential in protein discovery
...critical to the formation of the AIDS virus' outer shell or capsid. Treatments that target this protein co...y of Gag (group-specific antigens) proteins into a shell or capsid that protects the HIV. The newly identified protein, designated HP68 because it is a host...Lobster sniffing: how lobsters' hairy noses capture smells from the sea
...ch they dubbed Rasta Lobsta, was simply the molted shell of a spiny lobster filled with epoxy. Fresh antennules from lobsters could be mounted on this mechanical lobster and moved by a computerized motor to reproduce the motion of a flicking antennule. They placed the mechanical lobster downstream of an "......mple-staining methods. For example, the protective shell of protein that surrounds the genetic material of a virus, known as the capsid, can be labeled with fluorescent dye molecules. Labeled capsids can be visualized using light to excite the dyes, which then release fluorescent light as they de-energize....Largest fossil cockroach found: Site preserves incredible detail
... "Normally, we can only hope to find fossils of shell and bones, because they have m...te preserved organisms without shell or bones with incredible detail." Easterday presented his findings November 7 a...Geologists find spines make comfy home for some marine organisms
...n the Florida Keys looking at how spines and other shell decorations affected the number of epibionts prese...idely spaced and fragile compared with the overall shell strength," noted Jones, who added that the spines clearly don't deter some crabs which prey on the b...Answers to Florida bay restoration are clear as mud!
...s are directed toward extracting data from mollusc shell growth layers that will illustrate monthly, seasonal and annual changes in water chemistry prior to alteration of the natural flow of water into Florida Bay. Results of this work are intended to provide target data for restoring seasonal water flow ...Molecular motor packs DNA into viruses at greater than champagne pressures, researchers report
...tack and kill bacteria, and are composed of a hard shell or capsid containing tightly coiled DNA. They typically glom onto the bacterial surface and inject their DNA into the cell interior. Once there, the DNA takes over the replication machinery to make thousands of copies of the virus, filling the cell u...Press invitation: Launch of climate strategies
... a new internatonal organisation, sponsored by the shell foundation, intended to support cohesive policy responses to climate change. Following the international turmoil caused by US president George W Bushs public rejection of the Kyoto Protocol, this international network of senior policy researchers, he......rojects to investigate the causes of mortality and shell disease in Long Island Sound lobsters. The funded research will investigate many different factors on an ecosystem-wide basis. These include disease-causing organisms, pesticides, pollution, lobster crowding, water quality conditions including elevat...Study of marine snail suggests conservation efforts should consider factors beyond genetic diversity
...ically. This is due to the presence of a different shell form, or morphology, in some populations in the no...cally diverse would risk eliminating this distinct shell form. When adaptive evolution happens, it happens quickly, says Hellberg of LSU. As a result, the n...Evolution at a snail's pace: It's faster than you think
...of the species, which in turn, caused the species' shell shape to evolve. The scientists believe their fin...hells. Snails with a thicker, shorter and broader shell emerged. This new shell shape had not previously existed. The findings may give pause to scient...Marine snail study suggests conservation efforts should move beyond genetic diversity
...cally. This is due to the presence of a different shell form, or morphology, in some populations in the northernpart of the range that is not found in the Los Angeles area or in regions to the south. "There's a big difference in the morphology-in the shape and size of the shells-between the northern ...Lobsters play biological violins
... period, however, the spiny lobsters' antennae and shell are too soft to protect them against predators. Instead, the lobsters must rely on scare tactics sound to drive predators like sharks, grouper, and triggerfish away. A sound-producing mechanism that relied upon hard surfaces would be of little us...Purdue researchers develop new delivery system for gene therapy
...ene delivery system by replacing the outer protein shell of a virus, known as retrovirus, with the coat of an alphavirus. This combination virus is called a pseudotyped retrovirus because it infects cell types associated with its protein coat, but acts like a retrovirus once inside the cell. "This allows u...