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Tag: "concern" at biology news

Antifungal drug kills TB bug

...occurring at a rate of one per second. Of equal concern is the dramatic rise in the incidence of new strains of TB that are resistant to traditional antibiotics. As a result, the World Health Organisation, the Bill Gates Foundation and the European Union have all launched initiatives to tackle the problem...

Are we killing the world's oceans?

...dian universities, where thorny issues of national concern can be critically examined and policy approaches explored. Experts from Canada, Chile, Germany, Scotland and the US will speak on such issues as climate change, ocean acidification and coral reefs, the increase in ocean dead zones, scientific and ...

Manipulating nature: Scientists query wildlife birth-control method

... were unresponsive to self-antigens. His second concern is that the technique is effectively a form of gen...e responses should not be permitted. "The third concern is that animals are suffering side-effects from multiple injections and adjuvant substances (catalys...

QUT scientists on the way to sifting out a cure for HIV

...ian flu virus, both of which are currently a major concern to the international community." He said because the membrane was designed to permit a large flux or flow, it could also be used for water treatment, as well as within the pharmaceutical and food industries. Another benefit of the technology is...

Penn researchers replace organ in adult mice using 'single-parent' stem cells

...It turns out that genomic imprinting may be more a concern for developing stages and not so much a factor in the routine function of adult tissue, which was the ultimate goal for deriving these stem cells." To study uniparental stem cells and the possible effects of genomic imprinting, McLaughlin's team c...

Biologists produce global map of plant biodiversity

...cademy of Sciences, highlights areas of particular concern for conservation. It also, the scientists say, pro...nt species richness highlights areas of particular concern for conservation and provides much needed assistance in gauging the likely impact of climate change ...

Resistance to anti-HIV drugs in Uganda developed due to drug supply problems

...ssue of the journal "AIDS." "We have found the concern is not about the occasional missed dose—most of the patients had near perfect adherence and full suppression of the virus?but about supply interruptions that led to longer multi-day treatment interruptions allowing resistance to develop," said study ...

A steady, high-fat diet is bad, but the news gets worse

...n make you more reactive to stress, it’s cause for concern because it suggests a new and damaging way that a high-fat diet affects cardiovascular function." In the study, 30 healthy young adults fasted the night before, then consumed either a high- or low-fat breakfast. Both meals had the same number ...

2,000 influenza virus genomes now completed and publicly accessible

.... Seasonal influenza is a major public health concern in the United States, accounting for approximately...rotect against another strain. An even greater concern is the potential for an influenza pandemic caused by the emergence of a new, highly lethal virus str...

Study finds mercury prevalent in many western fish

...s per gram of tissue are considered a threshold of concern for fish-eating mammals, though little research has been done on how different levels of mercury affect mink, otter and related animals. Nevertheless, the survey found that 93 percent of the streams and rivers with large piscivores exceeded that leve...

A first glimpse of the influenza replication machine

...reaks of bird flu around the world. There is great concern that this virus might also mutate to allow human-to-human transmission and cause another catastrophic pandemic. Specific mutations in a viral protein, the polymerase, contribute to the ability of the bird virus to jump the species barrier to humans. ...

NASA satellite data helps assess the health of Florida's coral reef

...e more stressors than in the past. This is a major concern as bleaching events are becoming more common and severe," said Moses. "The Florida reef tract is considered by some to be a modest success story as many of the corals persist despite the many stressors including impacts from human coastal development...

Early HIV treatment fails to restore memory T cells

...ple with HIV despite years of treatment raises the concern that clinical problems will result over time. Fortunately, this does not appear to be the case in most people currently being treated for HIV, some for as long as 10 years, but the results of this study suggest that vigilance is warranted for infecti...

'GreeneChip' -- New diagnostic tool that rapidly and accurately identifies multiple pathogens

...rast, human-to-human transmission is not a primary concern with malaria and early, specific therapy can have a profound effect on illness and death. The GreeneChip provides unprecedented opportunities for unbiased pathogen discovery and reduction of illness and death caused by infectious disease....

Reef warns of sea level rise

...icesheets where there the greatest uncertainty and concern lies. Now from the Margaret River corals we have e...O2 from the atmosphere and it would be a matter of concern if their ability to do this decreased under global warming. If levels continue to increase, to abov...

Researchers discover key mechanism by which lethal viruses Ebola and Marburg cause disease

...n Africa. Viral hemorrhagic fevers are of specific concern because they are associated with high morbidity and mortality (up to 80% mortality rates) and the potential for rapid dissemination through human-to-human transmission. The term "viral hemorrhagic fever" characterizes a severe multisystem syndrome as...

Hospital-acquired infections -- Inevitable?

...g infections in the hospital is unavoidable. This concern is addressed in a special supplement to the November issue of The American Journal of Medical Quality, which is published by SAGE Publications on behalf of the American College of Medical Quality. The data seems to bear out the pervasive belief. In...

Walking not enough for significant exercise benefits

... were unaffected by either exercise program. "Our concern is that people might think what matters most is the total number of daily steps accumulated, and not pay much attention to the pace or effort invested in taking those steps," Dr. Harber said. "The 10,000-step or pedometer-based walking programs are g...

Paying attention sets off symphony of cell synchronization

... incoming sensory stimulation has been a long-time concern of scientists. One hypothesis is that when you pay attention neurons produce stronger brain activity, as if the stimulus itself was stronger. That would mean that paying attention might make something appear more intense, and possibly distort its act...

Plutonium or greenhouse gases? Weighing the energy options

... a byproduct of nuclear power generation also is a concern because of its potential for use in nuclear weapons. "Not everyone thinks this way, but I consider the explosion of a nuclear weapon to be a pretty large environmental impact with global implications," Ewing said. "A typical nuclear weapon will kil...

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