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Tag: "battery" at biology news

New defibrillator signals doctor of patient's irregular heartbeat or device malfunction

...ts abnormally or if the device malfunctions, e.g., battery failure. When a patient's status changes, a built-in microchip of Biotronik's Lumos DR-T implantable cardioverter defibrillator (ICD) sends a signal to a satellite via a small transmitter that can be placed on a nightstand, worn on a belt or kept...

Methamphetamine Abuse, HIV Infection Cause Changes in Brain Structure

...d the ability to think and reason using a detailed battery of tests that examined speed of information processing, attention/working memory, learning and delayed recall, abstraction/executive functioning, verbal fluency, and motor functioning. They observed that methamphetamine abuse is associated with incr...

Drugs from the deep blue

...cts from the animals they have collected through a battery of tests. If they find something with interesting properties, the researchers attempt to isolate and identify the molecule. The next step is to start from conventional chemistry and make the compound in the lab, then try to find the simplest structu...

North & South American researchers find architectural abnormalities in T. cruzi ribosome

...napshot. Frank and his colleagues have developed a battery of complex mathematical techniques to reconcile the images at different angles. From a total of up to 30,000 ribosome images, they assemble a final three-dimensional image of a single ribosome. A ribosome binds to mRNA with its small subunit. In the...

New study finds how cells with damaged DNA alert the immune system

...ithelial cells and fibroblasts from mice through a battery of abuse, including heat shock, pH changes, oxygen deprivation and starvation. However, the only type of stress that set off the sequence of events associated with impairment of a cell's genetic material -- the DNA damage pathway -- was exposure to r...

Renewed hope for Parkinson's patients

...ithelial cells and fibroblasts from mice through a battery of abuse, including heat shock, pH changes, oxygen deprivation and starvation. However, the only type of stress that set off the sequence of events associated with impairment of a cell's genetic material -- the DNA damage pathway -- was exposure to r...

Prenatal exposure to marine toxin causes lasting damage

...eceive the toxin. The researchers then conducted a battery of behavioral tests on the exposed and normal animals to determine the effects of early domoic acid on movement and working memory. Rats with a history of domoic acid exposure showed greater initial activity in a maze test than control rats, follow...

Seaweed yields new compounds with pharmaceutical potential

...l quantities of each extract were tested against a battery of pharmaceutical drug targets, including malarial parasite, tuberculosis-causing bacteria, and several cancers. Typically, these tests involve exposing live, disease-causing cells -- parasites, bacteria or cancer cells -- to an extract and then a...

New battery technology helps stimulate nerves

...t nervous system and other disorders. The lithium battery is the workhorse in implantable devices -- stimula... Emeritus of chemistry Robert West, is new lithium battery technology, technology capable of making batteries smaller, last longer and, soon, accept a charge f...

Implantable pumps extend lives of patients too sick for transplant

... power supply," Rogers said, "We need to develop a battery that is not only small enough and powerful enough to be safely implanted into the human body, but one that could be recharged through the skin without burning the skin. That way there would be no external parts, which would greatly reduce the inciden...

MIT researchers build tiny batteries with viruses

...or its size and weight compared to previously used battery electrode materials. And adding the gold further i...of energy density - meaning the amount of charge a battery of a given size can usefully carry - is what has hampered development of electric cars, since existi...

Creating a window on 'oceans in motion'

...t devices that vary in size from an almond to a AA battery and to follow them via an extensive international array of acoustic receivers on the sea floor. Tags harmlessly collect and report information as an animal travels along, and can record water temperatures, salinity and even light conditions encounte...

Ultra low-dose estrogen shown safe for post-menopausal women

...a skin patch for two years. The women were given a battery of standardized cognitive tests and a test of health-related quality of life at the beginning of the study, after one year, and after two years. At the end of the study, there was no difference between the two groups in either cognitive abilities ...

Five new technologies that promise to transform medicine

...ht passing through the pupils to microscopic solar battery panels attached to the retinas. These scenarios illustrate potential clinical applications of technologies currently under development, says Professor Combs. For instance, devices that can sense and transmit heart and breathing rates already exist...

MIT designs portable 'lab on a chip'

...have now developed a micropump which requires only battery power (a few volts) to achieve similar flow speeds...e to pressure-driven systems, can be attained with battery voltages. Experiments in the lab of Todd Thorsen, assistant professor of mechanical engineering, hav...

New system could drastically reduce herbicide use

...o the field and continuously collect data, but the battery that powered the system required charging about every two hours. "So I thought, what if we had a system that could collect data, but could also convert the heat of the sun into an energy source?" said Tian. "We could replace the grad student worke...

From hot springs to rice farms, scientists reveal new insights into the secret lives of archaea

...y mining waste where the pH level is equivalent to battery acid. Archaea even inhabit the warm, dark environs of our intestines and mouth. While extremophiles have been the subject of intense research, scientists are just now beginning to focus on the large number of archaeal species that inhabit more mun...

Cholera pathogen reveals how bacteria generate energy to live

...ween outside and inside. This gradient acts like a battery that powers essential cell functions, such as the ...understand this very basic mechanism charging this battery to create energy," she said. In order to learn how the enzyme works, researchers are trying to ge...

Scientists unravel clue in cortisol production

...pens next is well understood; CYP 17, along with a battery of other enzymes, transforms cholesterol into cortisol. But what isn't understood is how this protein binding creates CYP 17, or which proteins are important. So, graduate students Eric Dammer and Adam Leon, along with Marion Sewer, assistant profess...

Producing medicines in plant seeds

...he action of the antibody variant to an exhaustive battery of tests. These laboratory tests have shown that the antibody variants produced in plants are just as effective as whole human antibodies in protecting animal cells against infection with the Hepatitis A virus. This is a significant step forward i...

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(Date:8/20/2014)... 158 pregnant teenagers in Rochester, NY, nearly half engaged ... ice, cornstarch, vacuum dust, baby powder and soap, and ... Moreover, such teens had significantly lower iron levels as ... , Pregnant teens, regardless of pica, are at higher ... deficiency and anemia. Low iron in pregnant teens raises ...
(Date:8/20/2014)... in this image of the Para and Mato Grosso ... likely intentionally set in order to deforest the land. ... of trees where the land is thereafter converted to ... forestland to farms, ranches, or urban use. The herringbone-patterned ... Amazon Rainforest in the middle of the image are ...
(Date:8/20/2014)... When are athletes who have suffered concussions ready to ... has found that high school athletes who head back ... experience a significant regression in their abilities to simultaneously ... as seen in changes in their balance and/or altered ... Ten of the 12 had returned to activity in ...
Breaking Biology News(10 mins):Pica in pregnant teens linked to low iron 2Recovery reversal seen in Oregon study of returning concussed athletes 2Recovery reversal seen in Oregon study of returning concussed athletes 3
(Date:8/21/2014)... chronic kidney disease patients may be a strong indicator ... in the Journal of the American Society of ... Hopkins Bloomberg School of Public Health assert that coronary ... atherosclerosis in predicting the risk of heart disease among ... all patients with chronic kidney disease (CKD) die from ...
(Date:8/21/2014)... (PRWEB) August 21, 2014 Pulmonary ... with an Education Forum for PH patients and ... Who:    The Pulmonary Hypertension Association – the ... find ways to prevent and cure pulmonary hypertension ... affects the functioning of the heart and can ...
(Date:8/21/2014)... Researchers have pinpointed the environmental source of fungal infections ... for decades. It literally grows on trees. , The ... 13-year-old girl, who spent the summer gathering soil and ... by infections of the fungus named Cryptococcus gattii ... which encompasses a number of species including C. ...
(Date:8/21/2014)... -- Black mothers are less likely than white moms ... why: Hospitals in neighborhoods with many black residents do ... more white residents, a U.S. government study finds. ... in medical centers where the black population is higher ... Control and Prevention reported Thursday. These practices include ...
(Date:8/21/2014)... THURSDAY, Aug. 21, 2014 (HealthDay News) -- Among seniors, ... suggests. The study involved more than 2,500 people, aged ... the study and again two, six and eight years later. ... in the person,s risk of death during the study period, ... and effect, researchers led by Sharon Christ of Purdue University ...
Breaking Medicine News(10 mins):Health News:Measuring calcium buildup to predict heart disease in those with chronic kidney disease 2Health News:Pulmonary Hypertension Association Goes On the Road to Houston With an Education Forum for PH Patients and Families to Help Fight Rare Lung Disease 2Health News:Pulmonary Hypertension Association Goes On the Road to Houston With an Education Forum for PH Patients and Families to Help Fight Rare Lung Disease 3Health News:Fungus deadly to AIDS patients found to grow on trees 2Health News:Racial Disparities in Breast-Feeding May Start With Hospitals, Study Suggests 2Health News:Failing Vision Tied to Shorter Lifespans for Seniors 2
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