Tag: "reacts" at biology news

Ancient Chinese folk remedy packs anti-cancer punch

...go. The chemical helps control malaria because it reacts with the high iron concentrations found in the sin...e inside the cancer cell, the iron is released and reacts with the artemisinin. That makes the compound both highly toxic and, because of cancer's rapacious n...

Peakadilly nv biopharmaceutical firm created

... person, and between the proteome of a patient who reacts positively to a drug and of a patient who is not helped by it. Proteomics can also provide insight into the origin and progression of diseases. The analysis of the effect of a drug on the proteome enables researchers to understand whi...

Immune system in a bottle could help prevent flu vaccine shortage

...n study the artificial immune system to see how it reacts to biological hazards and their countermeasures, and use the data to make more effective countermeasures, said Jan Walker, DARPA spokesman. The birthplace of this artificial immune system is Kotov's three dimensional scaffold, which is comprised of ...

Munching microbes could cleanse arsenic-contaminated groundwater

...fate and reduce it into sulfide. The sulfide then reacts to precipitate arsenic, leaving little in solution. If the sulfate-reducing bacteria run out of sulfate, methanogenic bacteria take over as the dominant metabolic force, Kirk said. Because methanogenic bacteria don't produce sulfide, there is no pre...

The secret life of acid dust

SAN FRANCISCO--Dry dust reacts with air pollutants to form dewy particles whose sunlight-reflecting and cloud-altering properties are unaccounted for in atmospheric models. "Calcite-containing dust particles blow into the air and encounter gaseous nitric acid in polluted air from ...

Human see, human do

...licate pirouette or a masterful martial arts move, reacts differently if we are also skilled at doing the move. The University College London (UCL) study, published in the latest online edition of Cerebral Cortex, may help in the rehabilitation of people whose motor skills are damaged by stroke, and suggest...

Researchers blend folk treatment, high tech for promising anti-cancer compound

...den inside." Once inside the cell, the artemisinin reacts with the iron, spawning highly reactive chemicals called "free radicals." The free radicals attack other molecules and the cell membrane, breaking it apart and killing the cell. According to Lai, that process is what initially piqued his interest in ...

When cobras spit, there's not a dry eye in the house

...If they manage to hit an eye, the sensitive cornea reacts with severe stinging pain. In the worst case these burns can ultimately lead to blindness. As guinea pigs Katja Tzschtzsch used four Mozambique and six black-necked spitting cobras from the animal house in Schloss Poppelsdorf. In her experiments she ...

Water research initiatives at UW-Madison

...s needed on how "new" mercury added to a watershed reacts relative to "old' mercury stored in soils and lake sediments. With funds from the Water Resources Institute, UW-Madison water chemist James Hurley is working with an international team of scientists who are experimentally adding small amounts of merc...

Allicin in wonderland

...Rituximab sits on the target cell and continuously reacts with alliin molecules that are injected at intervals, producing a steady supply of allicin to penetrate and kill the cancer. The production of allicin can be "turned off" by the ceasing the administration of the ammunition - alliin. "This study was ...

Real time microscopy tracks the course of developing T cells

... are found in the central medulla. How a thymocyte reacts to other cells as it wends its way through the thymus determines whether it matures into a helper or killer T cell, or undergoes programmed cell death. The signaling cues that guide this process remain obscure. In their study, Robey and her colle...

PNAS highlights for the week of May 9 - 13

...mell. These findings indicate that the human brain reacts differently to these potential pheromones compared with common odors, suggesting a link between sexual orientation and brain function. Women Migrate More than Men, Based on Society A newly published study shows that immigration rates differ between...

Secret of smallpox's success may lead to bioterror cure

...he animals stay healthy," notes Jacobs. "The body reacts and it fights off both the mutant, and also the normal virus that normally would hide itself," said Jacobs. "The more you put in, the more likely it is for the immune system to say 'Hey, wait a minute! There is something going on here! I need to star...

Plant pathologists explore using fungi to control plant diseases

...an endophyte is introduced into a plant, the plant reacts as if a disease is infecting it and stimulates its natural defense system. As a result, the plant protects itself against pathogens that may cause it actual harm. "This method could create long-term protection against really devastating plant disease...

Penn receives $9.5 mllion NIH grant to create center for molecular discovery

... When the researchers identify a new molecule that reacts to a specific target, the results will be added to a database open to the public. Using the "hits" of the chemical screening, Amos Smith, a professor in Penn's Department of Chemistry, will head the effort to create highly tailored, higher potency ...

Antibiotics help combat dangerous tropical disease

... which may be up to ten centimetres long. The body reacts by producing inflammation which halts the flow of lymphatic fluid. The consequence of this is that arms, legs and genitals swell to monstrous proportions hence the name elephantiasis. More than 120 million people worldwide are infected with the path...

Penn State to host US DOE regional climate center

...onmental change create a complicated feedback that reacts to such things as increase ozone, temperature, carbon dioxide and changes in forests, grassland and urbanization. "The projects funded by NICCR will help support our ability to create a variety of computer models that couple ecosystems to climate," ...

Chemical link indicated between drinking and certain cancers

...rometry developed at NIST, the team showed that AA reacts with polyamines to produce crotonaldehyde (CrA). This in turn reacts with dG in DNA to produce the mutagenic Cr-PdG. An important finding was that the reactions occurred...

A picture does not automatically activate a thousand words

...n two studies, the authors evaluated how the brain reacts differently to a picture of an object or its name when people were looking for either the picture or the name in a visual display. University students saw pictures of five simple objects and words corresponding to their names. Participants were inst...

Insight into the processes of 'positive' and 'negative' learners

...hem to pinpoint with great accuracy when the brain reacts to components of the tasks. One such intriguing ERP signal, called "error-related negativity" (ERN), is associated with activity in a brain area called the anterior cingulate cortex (ACC). The ACC is known to be activated during demanding cognitive t...

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(Date:10/16/2014)... Cancer constantly wages war on the human body. ... a stalemate. In pancreatic cancer, this stalemate—known as ... becoming aggressively malignant, a phenomena that is poorly ... in the laboratory of Salvatore Torquato, a Professor ... the conditions surrounding tumor dormancy and the switch ...
(Date:10/16/2014)... are anything but sustainable: environmental damage to soil ... increasingly evident. Despite their disadvantages, however, monocultures remain ... the sole possibility of achieving higher yields in ... an ecology professor at the University of Zurich, ... forestry. After all, a new study carried out ...
(Date:10/15/2014)... , Oct. 15, 2014 Sandata ... for home and community-based care, today announced it ... implementing Sandata,s Santrax® Electronic Visit Verification™ Solution (EVV™) ... is a home health company founded in 1996 ... . The study details ...
Breaking Biology News(10 mins):Modeling tumor dormancy 2Plant communities produce greater yield than monocultures 2Plant communities produce greater yield than monocultures 3Sandata Announces Case Study with Quality Care Services, Inc. 2
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