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Current Viability News and Events, Viability News Articles.
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New definition returns meaning to information
Identifying meaningful information is a key challenge to disciplines from biology to artificial intelligence. In a new paper, Santa Fe Institute researchers propose a broadly applicable, fully formal definition for this kind of semantic information. (2018-10-22)

Nitrite's got to be cruel to be kind
The research group of Felipe Cava at Umea University studied this bacteria now under low-oxygen and different pH-conditions. Together with their colleagues in Boston, USA, the scientists discovered an elegant pH-dependent metabolic mechanism which permits the pathogen to switch to a resting mode with preserved viability. A smart strategy that provides competitive advantage against commensal bacteria to better colonize and infect the intestine. (2018-10-01)

Scientists propose a new model for the specialization of cells
Mathematicians at the Higher School of Economics have developed a model that explains how cell specialization arises in the context of resource constraints. The results are published in PLOS ONE journal. (2018-09-27)

The persistent killer of killer whales
Despite their being banned for decades, polychlorinated biphenyls (PCBs) threaten the long-term viability of more than 50 percent of the planet's killer whale population, reports a new model-based study. (2018-09-27)

Pointy eggs more likely to stay put in birds' cliffside nests, study finds
Natural selection -- that merciless weeder-outer of biological designs that are out of step with the times -- also is a wily shaper of traits. Exhibit A is the pointy murre egg, according to new research published in the Journal of Experimental Biology. (2018-08-22)

Ferroelectric perovskites go organic
Engineers have created 23 all-organic perovskites, one of which offers ferroelectric properties comparable to the widely used inorganic perovskite ferroelectrics BaTiO3 (BTO), a new study reports. (2018-07-12)

How Mycobacterium tuberculosis escapes death in macrophages
The bacteria that cause the devastating disease tuberculosis have the ability to escape destruction and grow after they are engulfed by lung macrophages, the immune cells that are supposed to destroy pathogens. Now researchers at the University of Alabama at Birmingham have described key biochemical steps between the bacteria Mycobacterium tuberculosis and the macrophage responsible for that ability. (2018-07-10)

A new therapy proves effective against brain metastasis
A study published in Nature Medicine by a team led by Manuel Valiente, head of the Brain Metastasis Group at the Spanish National Cancer Research Centre (CNIO), shows that the administration of silibinin in patients with brain metastasis reduces lesions without causing any adverse effects. This preliminary trial provides proof of concept that this compound could be a new effective and safe alternative to treat brain metastasis. (2018-06-11)

Roles and functions of community health workers in primary care
Community health workers in primary care provide clinical services, community resource connections, and health education and coaching. As trained individuals with limited or no formal medical education, they are widely considered to have the potential to enhance primary care access and quality, but remain underutilized. (2018-05-14)

Ultrafast compression offers new way to get macromolecules into cells
By treating living cells like tiny absorbent sponges, researchers have developed a potentially new way to introduce molecules and therapeutic genes into human cells. (2018-04-30)

Researchers provide potential explanation for declines in brown bear populations
Animals may fall into what are called evolutionary and ecological traps when they make poor decisions using seemingly reliable environmental cues. (2018-04-05)

Rare coastal martens under high risk of extinction in coming decades
The coastal marten, a small but fierce forest predator, is at a high risk for extinction in Oregon and northern California in the next 30 years due to threats from human activities. (2018-04-04)

A potential drug target against a large family of parasites is identified
An international research team identifies for the first time a key enzyme for the synthesis of glycoconjugates (sugars linked to other molecules) in Plasmodium falciparum and other intracellular parasites belonging to the large phylum Apicomplexa. The study, led by ISGlobal -- a centre supported by the 'la Caixa' Foundation -- and published in Scientific Reports, indicates that this enzyme could represent a selective therapeutic target against this broad group of parasites. (2018-03-21)

New method increases life span of donated brain tissue
Researchers at Lund University in Sweden have developed a method that enables them to use donated brain tissue from people with epilepsy for 48 hours. Previously, the researchers only had 12 hours to test new treatments before the structure of the cells started to break down. The research has now been published in the journal Scientific Reports. (2018-03-09)

Supplement for pregnant women with malaria could improve birth outcomes
Pregnant women infected with malaria have lower levels of an essential amino acid called L-arginine, which may help to explain why these women are more likely to experience complications such as stillbirths and low birth weight infants. (2018-03-07)

Innovative 'invisible ink' detects TB
Scientists have pioneered a process to detect TB bacteria by adding a molecule to the bacteria's own armour that lights up under fluorescent light. (2018-03-01)

The effect of the GDNF on the activity of neural networks during hypoxic damage has been studied
Searching for ways to reduce losses from ischemic stroke, a major problem worldwide, is an extremely important task for many areas of public health and economy. So far, no effective and safe methods have been developed for treating ischemic brain damage. One of the most promising approaches to the development of treatment methods is to use endogenous molecules. (2018-02-19)

Tiny drug-delivering capsules could sustain transplanted insulin-producing cells
A drug-carrying microsphere within a cell-bearing microcapsule could be the key to transplanting insulin-secreting pig pancreas cells into human patients whose own cells have been destroyed by type I diabetes. (2018-02-12)

A new tool for improving uterine transplant surgery
Future Science Group (FSG) today announced the publication of an article in Future Science OA demonstrating the first use of multispectral imaging in gynecology, in a uterine transplant setting. (2018-02-12)

What makes the bacteria behind lyme disease tick?
The precise mechanisms of how humans become infected with Lyme disease are still unclear. Researchers from UConn Health are advancing the understanding of how the causative bacterial agent of Lyme disease, Borrelia burgdorferi (Bb), survives in ticks and mammals. (2018-02-08)

Researchers take important step toward gonorrhea vaccine
Researchers are paving the way toward a new therapeutic approach for gonorrhea by shedding light on the mechanism behind important proteins on the Neisseria gonorrhoeae bacteria's outer membrane. (2018-02-05)

Augmented reality system lets doctors see under patients' skin without the scalpel
New technology is bringing the power of augmented reality into clinical practice. The system, called ProjectDR, allows medical images such as CT scans and MRI data to be displayed directly on a patient's body in a way that moves as the patient does. (2018-01-24)

Protecting piping plovers
Visitors to Sleeping Bear Dunes National Lakeshore are often treated to tiny scurrying beachcombers -- piping plovers. Future visitors, however, could see fewer of these celebrated shorebirds. A Michigan State University study reveals that the endangered shorebird population could decline over the next 10 years and changes in management strategies are needed. The authors demonstrate that current counting methods may not accurately predict future plover populations without considering a growing predator population. (2018-01-23)

Increased scientific rigor will improve wildlife research and management
Wildlife management relies on rigorous science that produces reliable knowledge because it increases accurate understanding of the natural world and informs management decisions. (2018-01-18)

The sixth Ttaste?
UCSB biologists enhance the scientific understanding of calcium taste (2018-01-03)

Tiny bilirubin-filled capsules could improve survival of transplanted pancreatic cells
By encapsulating bilirubin within tiny nanoparticles, researchers from North Carolina State University and the Ohio State University have improved the survival rates of pancreatic islet cells in vitro in a low-oxygen environment. The work has implications for the treatment of Type 1 diabetes in both canine and human patients. (2017-12-18)

Dolphin and bear studies have paved the way to improved population forecasting
A new article by a UNSW Sydney-led team challenges the validity of current methods for forecasting the persistence of slow-growing species for conservation purposes, and provides a better approach to reducing the threat of extinction. (2017-12-10)

Scientists create stretchable battery made entirely out of fabric
A research team led by faculty at Binghamton University, State University of New York has developed an entirely textile-based, bacteria-powered bio-battery that could one day be integrated into wearable electronics. (2017-12-07)

Under Pressure: Novel technology to model pressure-induced cellular injuries in the brain
Brain injuries -- whether caused by trauma, tumors, hemorrhage or developmental anomalies -- often produce elevated intracranial pressure (ICP), which in turn causes cellular injuries in the brain and additional neurological deficits beyond those associated with the initial insult. Little is known about the mechanisms underlying secondary ICP-induced cellular injuries. Researchers at the Medical University of South Carolina have developed a model of ICP-induced brain injury that could help elucidate those mechanisms and uncover novel therapeutics. (2017-12-01)

Vitamin E discovery in maize could lead to more nutritious crop
New research has identified genes that control vitamin E content in maize grain, a finding that could lead to improving the nutritional profile of this staple crop. Cornell University scientists and colleagues from other institutions combined different types of genetic association analyses to identify 14 genes across the genome that were involved in the synthesis of vitamin E. Six genes were newly discovered to encode proteins that contribute to a class of antioxidant compounds called tocochromanols, collectively known as vitamin E. (2017-11-01)

Vapor from glo™ had little or no biological impact on cells in laboratory tests
Unlike smoke, vapor from tobacco heating product -- gloTM -- is not toxic, does not cause oxidative stress, gene mutations or the promotion of tumors in cells in laboratory tests. gloTM, a tobacco heating device, heats rather than burns tobacco. It is well established that it is the toxicants produced by burning tobacco that are responsible for causing most smoking-related diseases. The numbers and levels of toxicants in gloTM emissions are significantly lower than in cigarette smoke, meaning it has the potential to be reduced risk. (2017-10-24)

SwRI scientists dig into the origin of organics on Ceres
Since NASA's Dawn spacecraft detected localized organic-rich material on Ceres, Southwest Research Institute (SwRI) has been digging into the data to explore different scenarios for its origin. After considering the viability of comet or asteroid delivery, the preponderance of evidence suggests the organics are most likely native to Ceres. (2017-10-18)

Unexpected findings uncover new understanding of gene expression
Northwestern Medicine scientists have discovered surprising findings about an enzyme central to gene expression and mutated in many cancers. (2017-10-02)

New research indicates the importance of early season control of herbicide-resistant kochia
Researchers writing in the latest edition of the journal Weed Science are providing new insights into the control of herbicide-resistant kochia, a weed that competes with both dryland and irrigated crops across the Great Plains states. (2017-09-18)

Chimera viruses can help the fight against lymphomas
Researchers from Instituto de Medicina Molecular (iMM) Lisboa have created a chimera virus that allows the study of molecules to treat cancers caused by human herpes virus infection in mice models of disease. (2017-09-14)

UMass Amherst environmental chemist flashes warning light on new nanoparticle
The UMass Amherst and Chinese research team found that layered BP's cytotoxicity is based on the fact that it generates reactive oxygen species (ROS). ROS are among the most potent cell-damaging agents known. Layered BP also disrupts cell membrane integrity in a particle-size-dependent manner. (2017-08-30)

New technique to aid IVF embryo selection
Australian researchers have successfully developed an advanced new imaging technique, which can help assess the quality of early-stage embryos. (2017-08-28)

Development of nanosensor capable of detecting herbicide and its target enzyme binding
Livia F. Rodrigues and the Nanoneurobiophysics research group from the Federal University of São Carlos, Sorocaba, SP, Brazil, have published their studies on nanomechanical sensing possibilities in NANO: Brief Reports and Reviews. Entitled 'Nanomechanical Cantilever-Based Sensor: an Efficient Tool to Measure the Binding Between the Herbicide Mesotrione and 4-Hydroxyphenylpyruvate Dioxygenase,' the article explores the nanomechanical capabilities of the atomic force microscope cantilever for use as nanobiosensors for enzyme-herbicide binding detection. (2017-08-15)

New microscope technique reveals internal structure of live embryos
University of Illinois researchers have developed a way to produce 3-D images of live embryos in cattle that could help determine embryo viability before in vitro fertilization in humans. (2017-08-08)

Tree-of-heaven's prolific seed production adds to its invasive potential
Tree-of-heaven -- or Ailanthus -- is an invasive triple threat, according to a team of plant pathologists. The species produces seeds early in its lifespan, tends to make millions of viable seeds during its life, and continues to produce seeds for decades and, in some cases, for more than a century. (2017-08-02)

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