Tag: "defines" at biology news

Study reveals why eyes in some paintings seem to follow viewers

...ll, on the other hand, the visual information that defines near and far points is unaffected by viewing direction. Still, we interpret this perceptually as if it were a real object. That is why the eyes appear to follow you as you change your viewing direction." Todd said people may be surprised by this phen...

Common cold virus can cause polio in mice when injected into muscles

...he findings challenge traditional views as to what defines a poliovirus, said Matthias Gromeier, M.D., a Duke virologist and senior author of the study. "In principle, Coxsackieviruses could cause polio in humans," said Gromeier. "We are in the process of eradicating polio worldwide, but if we eliminate the ...

Goals unlikely to protect Gulf of Mexico shrimp industry

...entrations decrease below the critical 2 mg/l that defines hypoxia and has resulted in collapses of fisheries in other parts of the world. It's important to reduce the size of the dead zone in the Gulf because the area is important habitat for shrimp and other important fin and shellfish. Hypoxia and oth...

Gene profiles could improve acute leukemia diagnosis and lead to better treatments

...said. "In this case, one gene expression signature defines a person as having a specific subtype of AML, while a person with another signature has a different type of AML." Knowing which subtype of AML a patient has makes it easier to determine the best treatment and that treatment's chance of success, acco...

All ecosystems are equally productive under drought conditions

...ity of plants, Huxman pointed out, adding, "RUEmax defines the limits of that production." However, the research indicates that under drought conditions, high-productivity systems like grasslands and forests grow even less than expected. Most of the climate-change scenarios for the next century pred...

Teachers turn to Tolkein to explain physics

... its value cannot change with time. One experiment defines it in terms of a certain number of carbon atoms, while the other involves matching the pull of gravity on an object with the electromagnetic force on it from a current-carrying wire. Unfortunately, agreeing upon a new definition is still "many years"...

Virginia Center for Coal and Energy Research helps implement global climate change initiative

... through either terrestrial or geologic sinks. DOE defines terrestrial carbon sequestration as, "either the net removal of carbon dioxide (CO2) from the atmosphere or the prevention of CO2 net emissions from the terrestrial ecosystems into the atmosphere." Soils and vegetation are good examples of carbon sto...

Brace therapy for osteoarthrisis, legal issues in TBI research, prosthetic fitting

...ata from an active research project identifies and defines unresolved legal and ethical issues in traumatic brain injury (TBI) research. Areas of law impacting TBI research are advanced directives, healthcare surrogacy acts, probate acts, power of attorney acts, and the Health Insurance Portability and Accou...

UCLA chemists develop new coating for nanoscale probes

...- or, in short, observe the 'molecular dance' that defines life itself." In addition to the capacity to paint and observe many different proteins with separate colors, quantum dots can be used for the ultimate detection sensitivity: observing a single molecule. Until now, tracking and following a single ...

Proven method of bone analysis may clarify human origins

...eat apes and to arrive at a clear family tree that defines ancestral relationships down to the subspecies level. The analysis relies solely on bone shape but its results agree with genetic analyses. In the paper, authors Charles A. Lockwood of the Department of Anthropology at University College London (form...

Researchers discover novel form of the Rett Syndrome protein

...ur ongoing amazement, the genetic information that defines who we are is much more complex than the mere DNA sequence. We are finding that many, if not most genes shuffle their sequences around to create various proteins with unique functions. We have discovered a new form of the MeCP2 protein which may tu...

University of Pittsburgh Medical Center acquires biotechnology firm Rheogene Inc.

...ocesses are regulated by a single gene. The system defines gene function, protein interactions and cell-signaling pathways, all of which can be applied to the discovery and development of new small molecule drugs, biological therapeutics, transgenic animal models of human diseases and cancer research. ...

Passwords to guard entry aren't enough to protect complex data

... A database administrator in a traditional system defines different roles for different users, and those roles define the type of access allowed. The good news about traditional systems is that bad guys must employ multiple 'hacks' to get past the firewalls, operating systems and the database security itsel...

Salk news: Understanding organ placement

...standing of what triggers the genetic cascade that defines organ placement. Izpisúa Belmonte's group focused on the activity of the Notch pathway, an important player during embryo development and also during tumorigenesis, and a key factor for proper left-right asymmetry, as the same group and others...

Breast cancer susceptibility genes play role in DNA repair

... A study led by scientists at The Wistar Institute defines a functional role for the tumor suppressor proteins BRCA1 and BRCA2 in breast cancer. The findings, presented in November issue of the journal Molecular Cell, also identify a number of novel proteins that work alongside BRCA1 and BRCA2 and might also...

U-M scientists find genetic 'fountain of youth' for adult stem cells

...ll over the world are trying to solve. "This paper defines one of the mechanisms that make stem cells special," Morrison says. "We now know that Bmi-1 is an important part of the mechanism used by stem cells to persist through adult life. Certainly there are other genes involved and we need much more researc...

Purdue research plots new field in plant genomics

... and primary investigator on the research project, defines the ionome as the collection of all the mineral io...or negative electrical charge. The ionome, as Salt defines it, includes only those ions composed of a single element, but does not include other charged compou...

Stanford researcher finds method to define genetic 'words'

...of Medicine, has created the first dictionary that defines them. His work, published in the Aug. 21 advance online version of the journal Science, could help researchers understand the role of newly identified genes. It also provides a glimpse into how a gene's function has evolved over time. "This tool tell...

Distinctive genetic program guides breast cancer's deadly spread

...gu. "This means that the metastatic gene signature defines and forms a violent society -- a large group of cells in a tumor that are competent to become metastatic cells." However, said Massagu, discovery of these metastatic genes does not invalidate the classical model that tumor cells require additional ge...

Chirping frogs keep UH scientists hopping

...ose to become terrestrial to a large extent, that defines an amphibian," Wells said. "This frog doesnt like water at all. It buries its eggs in the ground and, in about three weeks, they hatch out as tiny froglets." Wells believes the source of this unusual lifecycle is a genetic master switch, or a single ...

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