University of Toronto biologists pave the way for improved epilepsy treatments
2014-06-05
TORONTO, ON – University of Toronto biologists leading an investigation into the cells that regulate proper brain function, have identified and located the key players whose actions contribute to afflictions such as epilepsy and schizophrenia. The discovery is a major step toward developing improved treatments for these and other neurological disorders.
"Neurons in the brain communicate with other neurons through synapses, communication that can either excite or inhibit other neurons," said Professor Melanie Woodin in the Department of Cell and Systems Biology at the ...
Use of gestures reflects language instinct in young children
2014-06-05
Young children instinctively use a "language-like" structure to communicate through gestures, according to research published in Psychological Science, a journal of the Association for Psychological Science.
The research, led by the University of Warwick, shows that when young children are asked to use gestures to communicate, their gestures segment information and reorganize it into language-like sequences.
This finding suggests that children are not just learning language from older generations — their own preferences in communication may have shaped how languages ...
Overcoming barriers to successful use of autonomous unmanned aircraft
2014-06-05
WASHINGTON -- While civil aviation is on the threshold of potentially revolutionary changes with the emergence of increasingly autonomous unmanned aircraft, these new systems pose serious questions about how they will be safely and efficiently integrated into the existing civil aviation structure, says a new report from the National Research Council. The report identifies key barriers and provides a research agenda to aid the orderly incorporation of unmanned and autonomous aircraft into public airspace.
"There is little doubt that over the long run the potential benefits ...
Scripps Florida scientists unravel the molecular secret of short, intense workouts
2014-06-05
JUPITER, FL, June 5, 2014 – In the last few years, the benefits of short, intense workouts have been extolled by both researchers and exercise fans as something of a metabolic panacea capable of providing greater overall fitness, better blood sugar control and weight reduction—all of it in periods as short as seven minutes a few times a week.
Now, in a new study, scientists from the Florida campus of The Scripps Research Institute (TSRI) confirm that there is something molecularly unique about intense exercise: the activation of a single protein.
The study, published ...
Interactive teaching methods help students master tricky calculus
2014-06-05
The key to helping students learn complicated math is to understand how to apply it to new ideas and make learning more interactive, according to a new study by UBC researchers. Pre-class assignments, small group discussions and clicker quizzes improve students' ability to grasp tricky first-year calculus concepts.
Students taught in such active-engagement classes were 10 per cent more likely to understand key concepts on subsequent quizzes, according to the study published The International Journal on Mathematics Education. This was true even when compared to students ...
Early palliative support services help those caring for patients with advanced cancer
2014-06-05
Dartmouth researchers have found that those caring for patients with advanced cancer experienced reduced depression and felt less burdened by caregiving tasks when palliative support services were offered soon after the patient's diagnosis. They presented their findings at the American Society of Clinical Oncologist (ASCO) annual meeting in Chicago on June 3, 2014.
"Family caregivers are a crucial part of the patient care team. Because the well-being of one affects the well-being of the other, both parties benefit when caregivers receive palliative care," said senior ...
A new way to make laser-like beams using 1,000x less power
2014-06-05
ANN ARBOR – With precarious particles called polaritons that straddle the worlds of light and matter, University of Michigan researchers have demonstrated a new, practical and potentially more efficient way to make a coherent laser-like beam.
They have made what's believed to be the first polariton laser that is fueled by electrical current as opposed to light, and also works at room temperature, rather than way below zero.
Those attributes make the device the most real-world ready of the handful of polariton lasers ever developed. It represents a milestone like none ...
Stem cells found to play restorative role when affecting brain signaling process
2014-06-05
Putnam Valley, NY. (June 5, 2014) – A study by a Korean team of neuroscientists has concluded that when mesenchymal stem cells (MSCs; multipotent structural stem cells capable of differentiation into a variety of cell types) are transplanted into the brains of mice modeled with Alzheimer's disease (AD), the cells stimulate neural cell growth and repair in the hippocampus, a key brain area damaged by AD. The finding could lead to improved AD therapies.
The study will be published in a future issue of Cell Transplantation and is currently freely available on-line as an ...
Research shows compassion and euthanasia don't always jibe
2014-06-05
New research from Case Western Reserve University found that compassion can produce counterintuitive results, challenging prevailing views of empathy's effects on moral judgment.
To understand how humans make moral choices, researchers asked subjects to respond to a variety of moral dilemmas, for instance: Whether to stay and defend a mortally wounded soldier until he dies or shoot him to protect him from enemy torture and enable you and five other soldiers to escape unharmed.
Leading research has said people make choices based on a struggle within their brains between ...
Alcohol-related terms can increase aggression
2014-06-05
New psychology research shows that exposing people to alcohol-related words can influence aggressive behaviour in ways similar to actually consuming alcohol.
Researchers found however that this aggressive behaviour occurred when people were subjected to provocation in a way that was not a clear-cut insult.
Although it has been long known that drinking alcohol can increase aggression, a team of five psychologists, including Dr Eduardo Vasquez of the University of Kent in the UK and others from two US universities, demonstrated in two experiments that participants exhibited ...
Future heat stroke treatment found in dental pulp stem cells
2014-06-05
Putnam Valley, NY. (June 5, 2014) – Scientists in Taiwan have found that intravenous injections of stem cells derived from human exfoliated deciduous tooth pulp (SHED) have a protective effect against brain damage from heat stroke in mice. Their finding was safe and effective and so may be a candidate for successfully treating human patients by preventing the neurological damage caused by heat stroke.
The study is published in a future issue of Cell Transplantation and is currently freely available on-line as an unedited early e-pub at: http://www.ingentaconnect.com/content/cog/ct/pre-prints/content-CT1100Tseng.
...
Science Elements podcast highlights chemistry for search-and-rescue missions
2014-06-05
The June feature of Science Elements, the American Chemical Society's (ACS') weekly podcast series, shines the spotlight on devices that use chemistry to locate people trapped in collapsed buildings. The episode is available at http://www.acs.org/scienceelements.
Every second counts when people are trapped in the rubble of a collapsed building. As survivors breathe in a confined space, oxygen levels go down and carbon dioxide levels go up, a potentially lethal combination. People also can have severe injuries from the falling walls and other debris.
In the episode, ...
State of wildland fire emissions, carbon, and climate research
2014-06-05
RIVERSIDE, Calif.—Scientists know that wildland fire emissions play a significant role in the global carbon cycle and that its principal component – carbon dioxide – is a primary driver of climate change. But predicting and quantifying the effects of potential future emissions is a difficult process requiring the integration of complex interactions of climate, fire, and vegetation. The current state of knowledge, critical knowledge gaps, and importance of fire emissions for global climate and terrestrial carbon cycling is the focus of nine science syntheses published in ...
Team demonstrates continuous terahertz sources at room temperature
2014-06-05
Imagine a technology that could allow us to see through opaque surfaces without exposure to harmful x-rays, that could give us the ability to detect harmful chemicals and bio-agents from a safe distance, and that could enable us to peer so deeply into space that scientists could better understand the formation of the universe.
All of these scenarios are possible with terahertz radiation, electromagnetic waves with lengths that fall between microwaves and infrared light. However, the potential of terahertz waves has yet to be reached because they are difficult to generate ...
Race could be a factor in head and neck cancer survival rates, MU researchers find
2014-06-05
COLUMBIA, Mo. — The national survival rates for African-Americans diagnosed with head and neck cancer have not improved in the last 40 years despite advances in the treatment and management of the disease, University of Missouri School of Medicine researchers have found in a new study.
More than 52,000 men and women in the United States currently are living with head and neck cancer. Using data from the National Cancer Institute's Surveillance, Epidemiology and Ends Results (SEER) program, MU researchers under the guidance of Mosharraf Hossain, M.D., assistant professor ...
Can mice mimic human breast cancer? MSU study says 'yes'
2014-06-05
Scientists have routinely used mice to replicate aspects of human breast cancer in an effort to find a cure to the most common type of cancer among women.
But how effective are these preclinical models in actually mimicking the disease and giving scientists the ability to develop real comparisons?
Eran Andrechek, a physiology professor in the College of Human Medicine at Michigan State University, has discovered that many of the various models used in breast cancer research can replicate several characteristics of the human disease, especially at the gene level.
The ...
Design of self-assembling protein nanomachines starts to click
2014-06-05
A route for constructing protein nanomachines engineered for specific applications may be closer to reality.
Biological systems produce an incredible array of self-assembling, functional protein tools. Some examples of these nanoscale protein materials are scaffolds to anchor cellular activities, molecular motors to drive physiological events, and capsules for delivering viruses into host cells.
Scientists inspired by these sophisticated molecular machines want to build their own, with forms and functions customized to tackle modern-day challenges.
The ability to ...
Study discovers the downside of African-American success stories
2014-06-05
African-Americans such as Brown University President Ruth Simmons, Nobel Laureate Toni Morrison, and of course President Barack Obama have reached the pinnacle of success in historically white domains. But a new study finds there is a downside to African-American success stories: these positive examples prompt white Americans to think less successful African-Americans simply need to apply more effort to achieve their own success.
The findings are reported in the paper, "If He Can Do It, So Can They: Exposure to Counterstereotypically Successful Exemplars Prompts Automatic ...
Has solar activity influence on the Earth's global warming?
2014-06-05
A recent study demonstrates the existence of significant resonance cycles and high correlations between solar activity and the Earth's averaged surface temperature during centuries. This provides a new clue to reveal the phenomenon of global warming in recent years.
Their work, entitled "Periodicities of solar activity and the surface temperature variation of the Earth and their correlations" was published in CHINESE SCIENCE BULLETIN (In Chinese) 2014 No.14 with the co-corresponding authors of Dr. Zhao Xinhua and Dr. Feng Xueshang from State key laboratory of space weather, ...
Gestures research suggests language instinct in young children
2014-06-05
Young children instinctively use a 'language-like' structure to communicate through gestures.
Research led by the University of Warwick suggests when young children are asked to use gestures to communicate, their gestures segment information and reorganise it into language-like sequences. This suggests that children are not just learning language from older generations, their preference for communication has shaped how languages look today.
Dr Sotaro Kita from Warwick's Department of Psychology led the study with Dr Zanna Clay at the University of Neuchatel, Ms Sally ...
Understanding active pharmaceutical ingredients
2014-06-05
Active pharmaceutical ingredient (API), is the term used to refer to the biologically active component of a drug product (e.g. tablet, capsule). Drug products are usually composed of several components. The aforementioned API is the primary ingredient. Other ingredients are commonly known as "excipients" and these substances are always required to be biologically safe, often making up a variable fraction of the drug product. The procedure for optimizing and compositing this mixture of components used in the drug is known as "formulation". For example, if the API is a solid ...
Bloodstream infections reduced through better central line care at three hospitals
2014-06-05
Anaheim, Calif., June 5, 2014 – Whether through the use of alcohol-containing caps or basic cleaning of the injection port of the central line, infection preventionists at three hospitals are finding successful ways to stop germs from entering central line catheters and causing bloodstream infections in patients.
A trio of abstracts, to be presented on June 7 at the 41st Annual Conference of the Association for Professionals in Infection Control and Epidemiology (APIC), addresses the challenge of keeping bacteria from entering the bloodstream through a central line, a ...
Molecular self-assembly scales up from nanometers to millimeters
2014-06-05
To ensure the survival of Moore's law and the success of the nanoelectronics industry, alternative patterning techniques that offer advantages beyond conventional top-down patterning are aggressively being explored.
Can self-assembly based technologies offer advantages beyond conventional top-down lithography approaches?
A joint effort of the Aalto University of Helsinki, the Politecnico di Milano, and VTT Technical Research Centre of Finland has now demonstrated that it is possible to align molecular self-assemblies from nanometers to millimeters without the intervention ...
Northern Ireland Assembly to receive policy recommendations
2014-06-05
YOUNG people from disadvantaged communities in Northern Ireland should be provided with "safe spaces" in which to protest and make their views known. This would help prevent them falling under the sway of extremists, argue researchers at the University of Huddersfield who played a major role in organising a conference in Belfast that investigated the "culture wars" of Ulster.
One of the key themes to emerge was that many working-class communities felt they had gained little from the province's "peace dividend", with jobs hard to find and segregation still common. As a ...
Doing more means changing less when it comes to gene response, new study shows
2014-06-05
Turku, FI – An international team led by scientists at the University of Turku in Finland studied thermally-adapted fish populations to discover that the more biological functions a gene has, the less it responds to environmental change. "In addition to having important implications for climate change adaptation, these findings could radically change the way we study gene responses to any external stimulus like for example to drug treatments", the authors suggest. Their findings are reported on June 3 2014 in the journal Nature Communications.
When organisms need more ...
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