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Tag: "using" at biology news

Are one-third of costly implanted heart devices unnecessary? New study suggests yes

... potentially save a large part of those costs. But using MTWA testing to determine who will get the most benefit from an ICD is still not standard practice, despite Medicare coverage for one form of the test. Chan, Chow and their colleagues hope that their study -- and larger studies now under way or p...

Misclassified for centuries, medicinal leeches found to be 3 distinct species

...operties. That researchers have been mistakenly using Hirudo verbana in their work for decades may call much of this research, including hundreds of scientific publications, into question and force a reconsideration of what scientists think they know about this widely studied species. Siddall and his...

A genetic 'gang of 4' drives spread of breast cancer

...eting two of the proteins produced by these genes, using drugs already on the market. The researchers are exploring clinical testing of combination therapy with the drugs—cetuximab (trade name Erbitux) and celecoxib (Celebrex)—to treat breast cancer metastasis. The research team, led by Howard Hughes Med...

Sheffield scientists light up bacteria

... easily identify infected wounds much earlier than using conventional methodologies. The new technology will be of immediate benefit to healthcare industries in general, as well as those involved in detecting infection in battlefield conditions and bacterial contamination, whether accidental or delibera...

How fish species suffer as a result of warmer waters

... seasonal water temperature and population density using eelpout (Zoarces viviparus), a fish species from the Southern North Sea. The goal of the study was to identify those physiological processes exhibiting the most immediate response to warming in the field. Comparing ecological field data with laborato...

Fitness has fallen since the days of Ancient Greece

...stimate the average sustainable ship speeds. Then, using the reconstruction we measured the metabolic demands of the human engine required to sustain these speeds. If the historians are correct, we would struggle to find enough people at that level of fitness today to power the ships at those speeds." T...

NASA predicts nongreen plants on other planets

..., an astronomer who heads the VPL. The VPL team is using a suite of computer models to simulate Earth-size planets and their light spectra as space telescopes would see them. The scientists' goal is to discover the likely range of habitable planets around other stars and to find out how these planets might...

Protein fragments sequenced in 68 million-year-old Tyrannosaurus rex

...ein fragments over the course of a year and a half using highly sensitive mass spectrometry methods. "This allows you to get the chance to say, ‘Wait, they really are related because their sequences are related.?We didn’t get enough sequences to definitively say that, but what sequences we got support that...

Analysis of rhesus monkey genome uncovers genetic differences with humans, chimps

...arried out at each of the three sequencing centers using different and complementary approaches and then combined into a single "melded assembly." In their analysis, scientists from 35 institutions compared this melded assembly to the reference sequence of the human genome, a newer unpublished draft sequen...

Robotic therapy helps restore hand use after stroke

...o grasp and release objects after therapy sessions using the Hand-Wrist Assisting Robotic Device (HOWARD). ...three months prior participated in the pilot study using this robotic device. "Most spontaneous improvement in function occurs in the first three months ...

Link found between immune system and high plasma lipid levels

...wever, if researchers blocked the LIGHT signaling, using an engineered protein (LTbR-Ig), lipid levels were lowered again. Two organs believed to regulate lipid levels are the liver and the intestine. Researchers looked at the mouse livers ?particularly at the enzyme, hepatic lipase. This enzyme is mad...

New technologies coming too fast for Indian farmers

...rs were doing experimental testing, they were just using it because their neighbors were," Stone says. "There has been a breakdown in the process of farmers evaluating new seed technologies." 'De-skilling' While Bt seed exacerbates the problem by creating yet another option, the farming troubles pr...

Cancer-killing invention also harvests stem cells

...ries of lab experiments, both in vitro and in vivo using rats, with this selectin-coated tube to filter the bloodstream for stem cells. It worked, and the King Lab discovered that they could attract a large number of cells to the wall of their selectin-coated device, and that 38% of these captured cells w...

In-shell vaccine for chick disease

...n be delivered to chicks still in the egg (in-ovo) using robotic 'vaccinators'. IBV is the worst infectious disease in terms of economic loss to the UK poultry industry. Infection can lead to severe respiratory disease, dramatically reduce egg production and affect the quality and hatchability of eggs....

Progress toward artificial photosynthesis?

...y activated CO 2 for use in a chemical reaction by using a special new type of metal-free catalyst: graphitic carbon nitride. "Chemical activation of carbon dioxide, meaning its cleavage in a chemical reaction," explain chemists Goettmann, Thomas and Antonietti, " is one of the biggest challenges in syn...

Wired for sound: How the brain senses visual illusions

...perceptual experiences induced by sensory stimuli, using an electrophysiological or EEG recording procedure that measures electrical activity of the brain through the skull. "In subjects who reported seeing a second flash, the ERP measurements showed a boost of activity within the visual cortex of the...

Trusting your instincts leads you to the right answer

...p decisions are more reliable than decisions taken using higher-level cognitive processes. Participants, w... for certain tasks is actually more effective than using our higher-level cognitive functions." The study shows an instance when our rational mind is more...

Study shows hope for early diagnosis of Alzheimer's

...ee of brain failure has occurred. The advantage of using a modified EEG to detect these early changes is th...ive. Polikar and his students analyzed the data using sophisticated signal processing, pattern recognition and artificial intelligence techniques to explo...

Early-stage sperm cells created from human bone marrow

...ent. Earlier research led by Prof Nayernia using mice, published in Laboratory Investigations, also created spermatagonial cells from mouse bone marrow. The cells were transplanted into mouse testes and were observed to undergo early meiosis - cell division - the next stage to them becoming mature...

Antibody therapy prevents type 1 diabetes in mice

...1 diabetes in mice prone to developing the disease using an antibody against a receptor on the surface of immune T-cells. According to the investigators, these findings, which are being published in the January issue of the journal Diabetes, have significant implications for the prevention of type 1 diabet...

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