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Tag: "sure" at biology news

NASA satellite data provides rapid analysis of Amazon deforestation

Editor : Be sure to check out all the satellite images showing areas of deforestation on the NASA website The Amazon, a vast tropical forest stretching across South America, is so large that if you were to take pictures of the region with optical photographs, it ...

From a Few Wild Ancestors, a Citrus Cornucopia

...onia. But when you walked past it, you’d think for sure it was a lemon. It looked like a lemon, smelled like a lemon. Eventually I came by some records from the 1950s indicating that the tree actually was a lemon with the scientific name Citrus limon. Somewhere along the way, someone had mistakenly attach...

Menopause Symptoms May Come Back After Stopping Menopausal Hormone Therapy

...-quality products from reputable sources and to be sure to inform their health-care providers about their herbal medication use, because many herbal supplements can interact with other treatments. The mission of the Cornell Program on Breast Cancer and Environmental Risk Factors is to lower the risk and ...

Women cautioned against using herbal supplements

...-quality products from reputable sources and to be sure to inform their health-care providers about their herbal medication use, because many herbal supplements can interact with other treatments. The mission of the Cornell Program on Breast Cancer and Environmental Risk Factors is to lower the risk and ...

The synapse is a shotgun

...bution is called ectopic release. "We can only be sure of data on this one type of neuron, the ciliary ganglion," said Sejnowski. "But we are confident that this evidence points to ectopic release, and this means that you can't really trust the traditional textbook view -- in which all the vesicles are r...

New technique rapidly detects illness-causing bacteria

... site with sequences from other organisms to make sure they don't overlap, which could lead to a misdiagnosis. "You want to be sure it doesn't detect another organism that shares similar properties," said Nugen. The study was funde...

Bitter or sweet? The same taste bud can tell the difference

...ng a signal to that fiber. But researchers weren't sure how that happened. "We knew that many taste bud cells that have receptors for bitter stimuli lacked this connection to the brain," Herness said. "But we couldn't see how a cell could tell the brain when it was stimulated by a bitter taste." The rel...

New tool reveals secrets of migrating cells

...and cool videos where you can see cells moving, be sure to check them out. Links at the bottom of the press release, added by me. Biologists have a new tool to track and videotape cells moving about inside living tissue. Called two-photon laser-scanning microscopy, it has revealed, for example, the dra...

Purdue scientists may have found key to halting spinal cord damage

... are part of the problem, but no one has ever been sure which chemicals are responsible." When a spine is damaged, the change in its ability to function follows a well-defined pattern. In response to the initial shock, the spine immediately becomes completely nonfunctional but then starts to recover quic...

Caloric restriction won't dramatically extend life span in humans: UCLA research

... restriction may not make you live forever, but it sure would seem like it. Try to maintain a healthy body weight, but don't deprive yourself of all pleasure. Moderation appears to be a more sensible solution. "With mice, if you restrict their caloric intake by 10 percent, they live longer than if they ...

Vitamin A's paradoxical role in influencing symmetry during embryonic development revealed

...s of the embryo. The action of retinoic acid makes sure that some of those cells ignore the left-right instructions and progress symmetrically. Belmonte compares the node to a doorway. "Before embryonic stem cells enter the node, they don't have an orientation. Nor are they differentiated into specialize...

Hopkins AIDS experts issue warning about global efforts to provide drug therapies

...e History of Medicine. "It is as important to make sure that the decision-making body is politically legitimate and accountable to the public as it is to agree on the criteria for patient selection to begin with." The other two precedents are the introduction of hemodialysis for end-stage kidney disease ...

Tsunami-damaged coral reefs should be left to recover naturally, say scientists

...uld take advantage of reconstruction funds to make sure there is effective sewage treatment available. And if builders are moving lots of earth around, they should do this in the dry season rather than the wet season to avoid sediment being washed into the sea." USEFUL WEB LINKS: The Coral Reef Targeted ...

'EuroVacc 02' HIV Vaccine Trial Begins

...ially when it comes to the vaccine description; be sure to read the 'note' part at the end if you want to understand what the vaccine is about. Lausanne, Switzerland and London, United Kingdom, February 16, 2005 -- The European Vaccine Effort against HIV/AIDS today announced that a phase I clinical tria...

Chemical Engineer Kao Explores Antibiotic Synthesis With DNA Chips

...of bioactive molecules, with many more discoveries sure to come. "When new molecules are discovered to be made by species of this family, the research we do will hopefully be used to quickly make mutant strains that make a lot more of it," she said. "No drug company wants to wait 20 years to release a ne...

Purdue researchers use enzyme to clip 'DNA wires'

...that the BamH1 enzyme cuts DNA wires. "We weren't sure the enzyme would be able to recognize the DNA sequence covered with particles," Kinsella said. "We thought the particles might hinder the process." The researchers found, however, that the particles did not interfere with the process, possibly becau...

Remote control flies? Fly behavior controlled by laser light

...ntrol, Miesenböck and Lima reasoned, they could be sure that their system was working. After genetically engineering the flies to express the ion channel in the giant fiber system cells and using the tiniest of injections to place the caged ATP inside the flies, the researchers shone a ultraviolet-wavele...

Eliminate Data Analysis Bottlenecks in Drug Discovery

...r life for people. But at this point, knowing for sure whether sirtuin1 helps extend lifespan (an organism issue) or is merely involved in cellular aging (a cell-by-cell issue) in mammals will take much more work. Sirtuin1's potential as a target for treating diabetes is much closer, says Puigserver. Th...

Computational verification of protein-protein interactions by orthologous co-expression

...r life for people. But at this point, knowing for sure whether sirtuin1 helps extend lifespan (an organism issue) or is merely involved in cellular aging (a cell-by-cell issue) in mammals will take much more work. Sirtuin1's potential as a target for treating diabetes is much closer, says Puigserver. Th...

PHACCS, an online tool for estimating the structure and diversity of uncultured viral communities using metagenomic information

...r life for people. But at this point, knowing for sure whether sirtuin1 helps extend lifespan (an organism issue) or is merely involved in cellular aging (a cell-by-cell issue) in mammals will take much more work. Sirtuin1's potential as a target for treating diabetes is much closer, says Puigserver. Th...

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