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Tag: "thinking" at biology news

Researchers find gland that tells fruit flies when to stop growing

...d phenomenon. You sort of trick the fruit fly into thinking it is bigger than it really is." Enlarging the prothoracic gland produces much smaller-than-normal adult fruit flies, Riddiford said. "In humans, it would be as if you reached puberty when you were 6 years old." In the research, Mirth determined th...

New research puts a fresh spin on current thinking of speech evolution in humans

...ute (MNI) at McGill University, challenges current thinking that speech developed as a result of new structures that evolved in the human brain. Dr. Petrides and colleagues have identified a distinct brain region that controls jaw movements in macaque monkeys that is comparable to Broca's area - the region in...

Genomics researchers discover protein deficit that causes drug toxicity

...plain this. It's quite different from what we were thinking even a few years ago," says Liewei Wang, M.D., Ph.D., lead Mayo researcher in the study. "People are still debating what its function really is, but it appears to play a role here by receiving misfolded proteins." Significance of the Research "Nobo...

Monkeys understand numbers across senses

...levant stimuli. "Our approach really derives from thinking about why a monkey would need to represent numbers across sensory modalities," she said. "In the wild, a monkey might hear different monkeys vocalizing and not see them, yet need to know how many animals there are. For example, in a territorial dispu...

Marine bacterium suspected to play role in global carbon and nitrogen cycles

...ts are now revisiting, and perhaps revising, their thinking about how Archaea, an ancient kingdom of single-celled microorganisms, are involved in maintaining the global balance of nitrogen and carbon. Researchers have discovered the first Archaea known to oxidize ammonia for energy and metabolize carbon dio...

Study casts doubt on 'Snowball Earth' theory

...aid, "is unusually good at USC ?it was this way of thinking that provided the impetus for the project in the first place." ...

Measuring hidden parasites in falciparum malaria

... patients who died. This finding fits with current thinking that sequestration of red cells containing the mature forms of the parasite is the most important pathological process in falciparum malaria. Approximately 40% of the world's population, mostly living in the world's poorest countries, is at risk of...

Say what? Bacterial conversation stoppers

...essentially fooling the thriving oceanic gang into thinking its members were few, thereby terminating its quorum-sensing behaviors. In a more realistic encounter, Xavier mixed E. coli with V. cholerae, the cholera-causing bacteria that mixes with E. coli in human guts. When cholera bacteria sense a qu...

Thinking the pain away? Study shows the brain's painkillers may cause 'placebo effect'

...phins, bringing real relief to those in pain Just thinking that a medicine will relieve pain is enough to pro...at the subjects were not aware of. In other words, thinking they were getting a pain drug actually allowed the participants to tolerate even more pain-inducing ...

Men Estimate Men's Risks Of Common Disorders Higher Than Women Do, And Vice Versa

... were. * Fitness: there was a trend towards males thinking that men were fitter and females thinking women were. * Heart disease: 79 per cent of males and 59 per cent of females said men were more lik...

Researchers seek to discover what really happens when a virus enters the body

... then decades of scientific and medical diagnostic thinking could be in jeopardy. As immunologists consider the relatively new concept, a new NIH grant, awarded to Amy Bell, an electrical and computer engineer (ECE), and Karen Duca, a research assistant professor at the Virginia Bioinformatics Institute (VB...

Natural Killers Could Lead to New Hepatitis Treatments

...r damaged tissue. The findings offer a new way of thinking about this important class of immune cell, which is responsible for the inflammation and cell death in the liver due to hepatitis. Hepatitis can be a reaction to viruses, parasites such as malaria or other infections. Learning to “call off?the NKT ce...

To Stop Evolution: New Way Of Fighting Antibiotic Resistance Demonstrated By Scripps Scientists

...e genes that drive evolution, an innovative way of thinking because scientists have more often understood evolution as the force that drives genes. What underlies evolution is mutation -- changes in the DNA. "Mutations are the fuel for evolution," says Romesberg. Because of the potential harm of mutations, h...

NYU and MSKCC research provides model for understanding chemically induced cancer initiation

... the properties of carcinogen-DNA lesions. Current thinking in the field of chemical carcinogenesis is that the mutation-prone, or error-free processing of such carcinogen-damaged p53 genes by DNA repair proteins and DNA and RNA polymerases can determine whether these lesions ultimately contribute to the deve...

Protein helps regulate the genes of embryonic stem cells

... offers an important contribution to a new wave of thinking in genetics: that not all human disease states are due to alterations in DNA sequence. Dr. Terry Magnuson - Sarah Graham Kenan professor, chairman of genetics and director of the Carolina Center for Genome Sciences in UNC's School of Medicine - led t...

Harmful chemicals may reprogram gene response to estrogen

...overy is important because it changes conventional thinking about the way in which genetic predisposition and things in the environment interact to increase disease risk. Until now, scientists thought that exposure to harmful agents in the environment caused damage to the gene. This study, however, indicates ...

Pathogen-Mimicking Vaccine As Strategy For Cancer Therapy

...ich is essentially tricking the immune system into thinking the vaccine is a bacterial infection," says lead author Dr. Daniel Speiser from the LICR Lausanne Branch. "The immune system mounts a response against the peptide antigen, the cancer-specific target, in the vaccine, and thus also against the antigen ...

X-Ray Beams And Fruit Fly 'Flight Simulator' Aid Scientists' View Of Muscle Power

... flight simulator, which fools a tethered fly into thinking it is flying freely through the air, is necessary to produce a stable pattern of wing motion and enabled the team to capture X-ray images at different stages of muscle contraction. By combining the technologies, the researchers could reconstruct a ‘m...

Scientists identify new model Of NK cell development

...ood. In other words, they had a hunch traditional thinking about the origin of human NK cells might be wrong. In building a case to support their beliefs, they first identified the NK precursor cell, then, they measured the number of the precursors in different parts of the body. Through flow cytometry, the...

The secret lives of whales

... concludes that he and other researchers have been thinking about whale herds at the wrong scales, which has been constrained by the limitations of their recording and visual observation abilities. “Suddenly you realize that the whale’s sense of scale is ocean basin sized —one song note is 20 miles long and c...

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