Advances in stem cell research will provide enormous opportunities for both biological and future clinical applications. Basically, stem cells could replicate any other cells in the body, offering immense hope of curing Alzheimer's disease, repairing damaged spinal cords, treating kidney, liver and lung diseases and making damaged hearts whole. The potential for profit is staggering. Prof. Jinhui Chen from Indiana University in USA considered that this field of research still faces myriad biological, ethical, legal, political, and financial challenges. The eventual resolution ...

Sieve elements are a key component of phloem, the conductive tissue through which plants transport carbohydrates and a wide range of signalling molecules. Elongated cylindrical cells are capped at one end by a sieve plate and arranged end-to-end to form sieve tubes which in turn form a network throughout a plant's body. "Sieve elements are very special cells which play an important role in carbon sequestration, yet so far very little has been known about their differentiation," says Professor Ykä Helariutta from the Institute of Biotechnology, University of Helsinki, ...

In recent years, minimally invasive aesthetic injectable procedures have grown in popularity as more and more men and women are seeking age-defying treatments. As Botulinum toxin – generally known as BOTOX® – use has increased, a growing number of nonaesthetic health professionals have emerged to perform procedures utilizing this and other injectables. Kevin Small, MD and Henry M. Spinelli, MD from the Division of Plastic Surgery Presbyterian Hospital in New York and Kathleen M. Kelly, MD from Columbia University in New York have assessed the capability of various providers ...

CAMBRIDGE, Mass-- Researchers at MIT and in Saudi Arabia have developed a new way of making surfaces that can actively control how fluids or particles move across them. The work might enable new kinds of biomedical or microfluidic devices, or solar panels that could automatically clean themselves of dust and grit. "Most surfaces are passive," says Kripa Varanasi, an associate professor of mechanical engineering at MIT, and senior author of a paper describing the new system in the journal Applied Physics Letters. "They rely on gravity, or other forces, to move fluids or ...

RICHLAND, Wash. – Sun, wind and other renewable energy sources could make up a larger portion of the electricity America consumes if better batteries could be built to store the intermittent energy for cloudy, windless days. Now a new material could allow more utilities to store large amounts of renewable energy and make the nation's power system more reliable and resilient. A paper published today in Nature Communications describes an electrode made of a liquid metal alloy that enables sodium-beta batteries to operate at significantly lower temperatures. The new electrode ...

Asthmatic patients may soon have a more effective way to control the condition, thanks to a new pharmacological discovery by researchers from the National University of Singapore (NUS). The team, led by Associate Professor Fred Wong from the Department of Pharmacology at the NUS Yong Loo Lin School of Medicine, together with Dr Eugene Ho Wanxing, a recent PhD graduate from the Saw Swee Hock School of Public Health at NUS, discovered that artesunate, a common herbal-based anti-malarial drug, can be used to control asthma, with better treatment outcomes than other drugs ...

Preterm children do not suffer from dyscalculia more often than healthy full term children. Dr Julia Jäkel, a developmental psychologist from Bochum, and her colleague Prof Dr Dieter Wolke from the University of Warwick, UK proved this thesis to be true in their analyses – thus refuting previous scientific studies. Unlike other studies, the researchers took the children's IQ into consideration. Dyscalculia in preterm children often impossible to diagnose Preterm children often have cognitive deficits; they find solving complex tasks particularly difficult. However, ...

Even as he conquered rival kingdoms to create the first united Chinese empire in 221 B.C., China's First Emperor Qin Shihuang ordered the building of a glorious underground palace complex, mirroring his imperial capital near present-day Xi'an, that would last for an eternity. To protect his underworld palaces, the First Emperor issued instructions that his imperial guard be replicated, down to the finest details, in red-brown terracotta clay, poised to do battle. Thousands of these imperial guards were initially discovered in 1974; some contained patches of pigment that ...

Researchers and doctors at the Institute of Bioengineering and Nanotechnology (IBN), Singapore General Hospital (SGH) and National Cancer Centre Singapore (NCCS) have co-developed the first molecular test kit that can predict treatment and survival outcomes in kidney cancer patients. This breakthrough was recently reported in European Urology, the world's top urology journal. According to IBN Executive Director Professor Jackie Y. Ying, "By combining our expertise in molecular diagnostics and cancer research, we have developed the first genetic test to help doctors prescribe ...

Security researchers at the Georgia Tech Information Security Center (GTISC) have discovered a way to jailbreak current generation Apple iOS devices (e.g., iPhones and iPads) running the latest iOS software. The jailbreak, which enables circumvention of Apple's closed platform, was discovered by analyzing previously patched vulnerabilities with incomplete fixes. It shows that quick workarounds mitigating only a subset of a multi-step attack leave these devices vulnerable to exploitation. Patching all vulnerabilities for a modern, complex software system (i.e., Windows ...

Boulder, Colo., USA – One of the most diverse families in the ocean today -- marine bivalve mollusks known as Lucinidae (or lucinids) -- originated more than 400 million years ago in the Silurian period, with adaptations and life habits like those of its modern members. This Geology study by Steven Stanley of the University of Hawaii, published online on 25 July 2014, tracks the remarkable evolutionary expansion of the lucinids through significant symbiotic relationships. At is origin, the Lucinidae family remained at very low diversity until the rise of mangroves and ...

Having a companion in old age is good for people — and, it turns out, might extend the chance for life on certain Earth-sized planets in the cosmos as well. Planets cool as they age. Over time their molten cores solidify and inner heat-generating activity dwindles, becoming less able to keep the world habitable by regulating carbon dioxide to prevent runaway heating or cooling. But astronomers at the University of Washington and the University of Arizona have found that for certain planets about the size of our own, the gravitational pull of an outer companion planet ...

PROVIDENCE, R.I. [Brown University] — New research shows that people who grew up in a household where a member was incarcerated have a 16-percent greater risk of experiencing poor health quality than adults who did not have a family member sent to prison. The finding, which accounted for other forms of childhood adversity, suggests that the nation's high rate of imprisonment may be independently imparting enduring physical and mental health difficulties in some families. "These people were children when this happened, and it was a significant disruptive event," said Annie ...

The publication of the new joint ESC/ESA Guidelines on non-cardiac surgery: cardiovascular assessment and management introduces a number of recommendations in the field. Among other topics, the Guidelines include updated information on the use of clinical indices and biomarkers in risk assessment, and the use of novel anticoagulants, statins, aspirin and beta-blockers in risk mitigation. Worldwide, non-cardiac surgery is associated with an average overall complication rate of between 7% and 11% and a mortality rate between 0.8% and 1.5%, depending on safety precautions. ...

A team of chemists from New York University and the University of Cambridge has developed a method for examining the inner workings of battery-like devices called supercapacitors, which can be charged up extremely quickly and can deliver high electrical power. Their technique, based on magnetic resonance imaging (MRI), establishes a means for monitoring and potentially enhancing the performance of such devices. The work, which appears in the latest issue of the journal Nature Communications, focuses on electric double-layer capacitors (EDLCs), a type of so-called supercapacitor. ...

Charlottesville, VA (August 1, 2014). The Journal of Neurosurgery is pleased to announce today's publication of a supplement to the August issue entitled "Race Against the Clock: Overcoming Challenges in the Management of Anticoagulant-Associated Intracerebral Hemorrhage." Authored by Peter Le Roux, MD, Charles V. Pollack, Jr., MA, MD, Melissa Milan, MD, and Alisa Schaefer, PhD, the 20-page supplement covers the current knowledge of anticoagulant-associated intracerebral hemorrhage (AAICH) and methods in use for management of the condition. Provided by Paradigm Medical ...

The co-authors of a new study, including two Simon Fraser University research associates, cite new reasons why scientists, industry representatives and policymakers must collaborate closely on minimizing damage to the natural world from shale gas development. Viorel Popescu and Maureen Ryan, David H. Smith Conservation Research Fellows in SFU's Biological Sciences department, are among eight international co-authors of the newly published research in Frontiers in Ecology and the Environment. Shale gas development is the extraction of natural gas from shale formations ...

ARLINGTON HEIGHTS, Ill. (August 1, 2014) – Women over the age of 65 face numerous barriers to good health: an increased risk for obesity, greater struggles against poverty and higher rates of asthma with worse health outcomes. An article published in the August issue of Annals of Allergy, Asthma and Immunology, the scientific publication of the American College of Allergy, Asthma and Immunology (ACAAI), outlines the challenges faced by older women in treating asthma, and offers practical solutions to improve their care. "Allergists want older women to understand that ...

ARLINGTON HEIGHTS, Ill. (August 1, 2014) – If you have asthma, you may have an asthma action plan with a "stoplight system" to help you recognize and respond to changes and understand when symptoms are getting worse and need more attention. If you're in the green zone, you're doing well, yellow means your asthma has worsened and action is needed, and red means you require urgent care. New guidelines are now available to help your allergist steer you out of the yellow zone, back into green and away from the red zone. "Management of acute loss of asthma control in the ...

PHILADELPHIA — Women who recently used birth control pills containing high-dose estrogen and a few other formulations had an increased risk for breast cancer, whereas women using some other formulations did not, according to data published in Cancer Research, a journal of the American Association for Cancer Research. "Our results suggest that use of contemporary oral contraceptives [birth control pills] in the past year is associated with an increased breast cancer risk relative to never or former oral contraceptive use, and that this risk may vary by oral contraceptive ...

CAMBRIDGE, Mass-- Graphene, an ultrathin form of carbon with exceptional electrical, optical, and mechanical properties, has become a focus of research on a variety of potential uses. Now researchers at MIT have found a way to control how the material conducts electricity by using extremely short light pulses, which could enable its use as a broadband light detector. The new findings are published in the journal Physical Review Letters, in a paper by graduate student Alex Frenzel, Nuh Gedik, and three others. The researchers found that by controlling the concentration ...

In the United States, natural-gas production from shale rock has increased by more than 700 percent since 2007. Yet scientists still do not fully understand the industry's effects on nature and wildlife, according to a report in the journal Frontiers in Ecology and the Environment. As gas extraction continues to vastly outpace scientific examination, a team of eight conservation biologists from various organizations and institutions, including Princeton University, concluded that determining the environmental impact of gas-drilling sites — such as chemical contamination ...

A little over a decade ago, prestin was found to be a key gene responsible for hearing in mammals. Prestin makes a protein found in the hair cells of the inner ear that contracts and expands rapidly to transmit signals that help the cochlea, like an antique phonograph horn, amplify sound waves to make hearing more sensitivity. Now, in a new study published in the advanced online edition of Molecular Biology and Evolution, Peng Shi, et al., have shown that prestin has also independently evolved to play a critical role in the ultrasonic hearing range of animal sonar, ...

In this month's issue of Physics World, Ashley Dale from the University of Bristol warns of the "catastrophic" and "long-lasting" impacts of "solar super-storms" and the dangers we face if the threat continues to go unnoticed. Dale, who was a member of an international task force – dubbed SolarMAX – set up to identify the risks of a solar storm and how its impact could be minimized, explains how it is only a matter of time before an exceptionally violent solar storm is propelled towards Earth. Such a storm would wreak havoc with our communication systems and power supplies, ...

A new study of liver patients by the University of Southampton shows that a Minimum Unit Price (MUP) policy for alcohol is exquisitely targeted towards the heaviest drinkers with cirrhosis. Published today in Clinical Medicine, the peer review journal for the Royal College of Physicians, the researchers studied the amount and type of alcohol drunk by 404 liver patients, and also asked patients how much they paid for alcohol. They found that patients with alcohol related cirrhosis were drinking on average the equivalent of four bottles of vodka each week, and were buying ...