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Tag: "scene" at biology news

Dinosaur DNA? New Patent Covers Degraded DNA recovery

...where time, the traumatic circumstances of a crime scene or the environment has caused DNA samples to become degraded. "We hope this gives criminal investigators another tool to re-open cold cases or revisit crime scenes, stringing together strands of detached DNA into a genetic trail that could solve a cr...

Color-blind method opens new doors in DNA sequencing

...atient's bedside, the doctor's office and even the scene of a crime or a battlefield. "We could eventually do direct detection of a DNA sequence from native DNA" without manipulation now performed in the laboratory, said Dr. Michael L. Metzker, assistant professor in the BCM Human Genome Sequencing Center...

Microbial forensics: The next great forensic challenge

...ime a disease takes effect, and the original crime scene could be difficult to locate and link to suspects," Murch said. Additionally, the biological and ecological complexity of most biothreat agents present forensic microbiologists with a number of significant analytical and interpretive challenges. "It...

The evolutionary triumph of flower power

...ary context. While flowers originally came on the scene to attract potential pollinators like bugs and birds, it is their appeal to humans that accounts for the incredible variety of shapes and colors we see in domesticated flowers today. McGuire suggests that nature's prettier flowers got to survive and ...

Engineered skin offers clues to melanoma development

... to melanoma, PI3K and B-Raf often "show up at the scene of the crime," said Chudnovsky's graduate advisor, Paul Khavari, but it has been unclear "which one is the murderer and which one is the accomplice." Based on this study, it appears that mutations that activate the PI3K cascade could be a primary pat...

Ibruprofen and other commonly used painkillers for treating inflammation may increase the risk of heart attack

... to melanoma, PI3K and B-Raf often "show up at the scene of the crime," said Chudnovsky's graduate advisor, Paul Khavari, but it has been unclear "which one is the murderer and which one is the accomplice." Based on this study, it appears that mutations that activate the PI3K cascade could be a primary pat...

Researchers use RNAi libraries to identify regulators of apoptosis and chemoresistance

... to melanoma, PI3K and B-Raf often "show up at the scene of the crime," said Chudnovsky's graduate advisor, Paul Khavari, but it has been unclear "which one is the murderer and which one is the accomplice." Based on this study, it appears that mutations that activate the PI3K cascade could be a primary pat...

Otter adaptations: How do otters remain sleek and warm

Otters cavorting in the water is a scene with which we're all familiar. Yet, unlike many other mammals that spend a considerable amount of time in the water–polar bears, seals, dolphins, and whales–river otters do not have a thick layer of body fat to keep warm. They rely, instead, on a few...

Genome Sequence for Haemophilus Influenzae Completed

Otters cavorting in the water is a scene with which we're all familiar. Yet, unlike many other mammals that spend a considerable amount of time in the water–polar bears, seals, dolphins, and whales–river otters do not have a thick layer of body fat to keep warm. They rely, instead, on a few...

Why do aneurysms form? New studies suggest leading role for white blood cells

...the body's immune system, appearing rapidly on the scene of an infection or injury to an area of tissue, and sounding the alarm to summon other immune cells to join the fight. They are key to the process of inflammation by which the body fights off insults from bacteria, viruses and injuries. The two new ...

Retina adapts to seek the unexpected, ignore the commonplace

...us scenes. For most cells, sensitivity to a novel scene was greater than sensitivity to control scenes to which the animals had already been exposed, a gap that grew gradually in the seconds after introduction to a new environment. Because this adaptation occurred in both salamanders and rabbits, Meister ...

Bronx Zoo bears are new Samsonite gorillas

...ars give bear canister for campers a real testIn a scene reminiscent of the famous Samsonite luggage commercial when a gorilla puts the product's durability to the test, grizzly bears at the Bronx Zoo gave a bear-proof food canister designed for backpackers a real beating, according to the Wildlife Conserv...

Oil spills and climate change double the mortality rate of British seabirds

...ing consequences on seabirds breeding far from the scene of the initial pollution. The study has also found that consistently high values of the North Atlantic Oscillation (NAO) index (an annual measure of a large scale climatic phenomenon affecting winds, temperature and rainfall) for the past 30 years,...

New technique puts brain-imaging research on its head

It's a scene football fans will see over and over during the bowl and NFL playoff seasons: a player, often the quarterback, being slammed to the ground and hitting the back of his head on the landing. Sure, it hurts, but what happens to the inside of the skull?...

Bees solve complex colour puzzles

...is puzzle, the bees had to effectively segment the scene into its different regions of illumination, and th...ss a woodland floor. "When all the surfaces in a scene are under the same light, identifying a particular surface when the global illumination changes is i...

DNA conclusive yet still controversial, Carnegie Mellon professor says

...though the odds that DNA evidence found at a crime scene will match by chance the DNA of a person who was n...A database to find a match of DNA found at a crime scene and then collect other evidence to build their case -- as opposed to first identifying a suspect thr...

MIT sheds light on how tumor cells form

...ing checkpoint mutations - are rarely found at the scene of the crime, in the aneuploid tumors," Draviam said. That lingering question prompted Draviam and her colleagues to study how two other key molecules - a known tumor suppressor protein called APC and its partner protein EB1 - work together to assur...

Evolutionary forces explain why women live longer than men

...age, when the males are just entering the breeding scene and competing aggressively for social status and females. From the tail of the peacock to the blinged-out SUV, males compete aggressively for female attention, and that costs them something. In nature, it means riskier physiology and behavior for ...

Researchers find protein that silences genes

...nucleolar dominance occurs. "We found HDA6 at the scene of the crime, which was reassuring," Pikaard said. Ph.D. student Keith Earley in the group characterized HDA6 biochemically and demonstrated that it was, in fact, a histone deacetylase, as predicted, and that the protein would remove acetyl groups...

Eminent inventor of DNA fingerprinting gains new recognition

..., sweat, hair or sperm has been left behind at the scene of a crime? Who is this tsunami victim? Are these bones truly the remains of the last Czar of Russia? Jeffreys' technique was even able to tell us whether Dolly was in fact the clone of another sheep. "The new discipline of forensic molecular biolog...

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