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Tag: "recognize" at biology news

UC Riverside psychologist explores human perception, finds 'wow factor'

...s placed on lips, teeth and tongue. They can also recognize people's voices just from seeing their faces, and ...d subjects to listen to recorded sounds and try to recognize where on campus the recordings were made. "We picked different places -- a men's bathroom, the old ...

How can we protect patients with weakened immune systems from influenza?

...important roles in the immune system. T cells that recognize and fight influenza may help predict whether a patient will produce protective antibodies after vaccination. Producing those antibodies is the job of B cells. "We hope to be able to use a simple blood test to help determine which immunocompromised pa...

Penguins waddle but they don't fall down, UH researchers say

...f penguin walking, we can better understand how to recognize and deal with abnormalities." King penguins were chosen because of their hefty size. Smaller birds, such as the rock hopper penguins, were too lightweight to register data on the mat. King penguins, second in size only to the larger Emperor pengu...

Researchers now able to look deep into heart to view triggers of a heart's beat

...ptor). Using fluorescently labeled antibodies that recognize and bind to gamma tubulin and other centrosomal proteins, they demonstrated the presence of these proteins in accessory nuclei and showed that the accessory nuclei appear to give rise to centrosomes. Accessory nuclei bud off from the membrane of th...

Insects that produce males from unfertilized eggs reveal a surprising cellular feat

...ptor). Using fluorescently labeled antibodies that recognize and bind to gamma tubulin and other centrosomal proteins, they demonstrated the presence of these proteins in accessory nuclei and showed that the accessory nuclei appear to give rise to centrosomes. Accessory nuclei bud off from the membrane of th...

Deep-rooted plants have much greater impact on climate than experts thought

.... While scientists studying global climate change recognize the importance of vegetation in removing carbon dioxide from the atmosphere and in local cooling through transpiration, they have assumed a simple model of plants sucking water out of the soil and spewing water vapor into the atmosphere. The new stu...

Advanced genomics and proteomics improve the diagnosis and treatment of a deadly lung disease

...t evolutionary heritage. Because of its ability to recognize double-stranded RNA, scientists think Dicer's original function may have been to defend cells from certain kinds of viruses. Having an image of Dicer from Giardia intestinalis, Doudna noted, will help scientists better understand its role across bio...

Scientists discover a genetic switch that links animal growth and cancer

... of cancer growth are striking," said Rothman. "We recognize that cancer cells in many ways simply mimic what normal cells do in a developing animal, only at an unfortunate time and place." In life, there is a time to wait and a time to grow, Rothman explained. "Many creatures remain in a waiting state until ...

Molecule does more than slice and dice RNA

...t evolutionary heritage. Because of its ability to recognize double-stranded RNA, scientists think Dicer's original function may have been to defend cells from certain kinds of viruses. Having an image of Dicer from Giardia intestinalis, Doudna noted, will help scientists better understand its role across bio...

Chemical guidance of T cells leads to immunologic memory and long-term immunity

... response). During an infection, CD8+ T cells that recognize antigens from the infecting pathogen are activated. These antigen-specific CD8+ T cells expand into a large population of active clones, which then sweep through the body, hunting down and killing infected cells. For CD8+ T-cell activation to occur...

Wisconsin scientists find a way to make human collagen in the lab

...ulin levels. Similarly, equipped with molecules to recognize specific pathogens, such a sensor could stand perpetual guard in the body and provide instant warning of invading viruses or bacteria. "We can have total control of what goes on these very thin extended fibers," says Raines. "We are able to build th...

Weizmann Institute suggests that immune cells help to maintain cognition and brain cell renewal

...erve cell networks. Furthermore, immune cells that recognize the brain's own components("autoimmune" cells) are...primary role of the immune system's T cells (which recognize brain proteins) is to enable the "neurogenic" brain regions (such as the hippocampus) to form new ne...

Protein 'nanosprings' most resilient found in nature

...cle contracts, forces are generated. Cells have to recognize those forces and adjust accordingly." The tension created by the ankyrin springs could allow for very rapid translation of mechanical forces into biochemical signals, he said. The proteins' spring-like properties could also be important for further...

'Word-vision' brain area confirmed

...ple with lesions in the region lose the ability to recognize whole words--reduced to letter-by-letter reading. ...n does indeed play a causal role in the ability to recognize words. The researchers reported in the April 20, 2006, issue of Neuron the results of reading, lang...

How taste response is hard-wired into the brain

...e. The researchers found that flies engineered to recognize capsaicin on the sweet-tasting neurons were attrac... we demonstrate that these taste cells selectively recognize different taste modalities, such that there is functional segregation of taste qualities in the peri...

In the mind's eye: How the brain makes a whole out of parts

..."For instance, in just a tenth of a second, we can recognize whether something we see is an animal or not. Our results show that this immediate, rough impression probably depends on recognizing just one or more individual parts of what we see. Fine discriminations ?such as recognizing individual faces ?take lo...

UCSD biologists find new evidence for one-way evolution

...eae family, which include tomatoes and tobacco, to recognize and reject their own pollen, thereby avoiding self-fertilization and the harmful effects of inbreeding. This ability is sometimes lost, as is the case for garden tomatoes, which can set seed by self-fertilization. Apparently, once lost, the ability t...

Anthrax inhibitor counteracts toxin, may lead to new therapeutics

...ibitor with a fixed pattern of chemical groups can recognize a protein with a similar fixed pattern of compleme...erapeutic inhibitor displaying random patterns can recognize a target if its statistical characteristics match those of the toxin target. According to the resear...

Protecting endangered species helps reduce poverty

...efforts to alleviate poverty. "Now's the time to recognize the strong connections between sustainable economic development, a healthy environment, and successful species conservation," said Ginette Hemley, vice president for species conservation, World Wildlife Fund. "WWF's new report provides clear evidence...

Cell barrier shows why bird flu not so easily spread among humans

...-- a molecule embedded in the virus membrane -- to recognize human receptors, Kawaoka says. "Mutations in the hemagglutinin for avian H5N1 viruses to recognize human receptors are needed for the virus to become a pandemic strain," Kawaoka explains. Viruses is...

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