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Effects of conflict on women's reproductive health need to be managed sensitively

2014-07-04
Clinicians need to be sensitive and aware of the unique challenges of women's reproductive health needs in times of conflict, suggests a new review published today (4 July) in The Obstetrician & Gynaecologist (TOG). Approximately 1.5 billion people are currently living in countries affected by conflict, fragility or large-scale violence. Women and children account for approximately 75% of those displaced by conflict and roughly 20% of those displaced are women of reproductive age and one in five will be pregnant. This new review looks at how conflict can negatively ...

New discovery in living cell signaling

New discovery in living cell signaling
2014-07-03
A breakthrough discovery into how living cells process and respond to chemical information could help advance the development of treatments for a large number of cancers and other cellular disorders that have been resistant to therapy. An international collaboration of researchers, led by scientists with the U.S. Department of Energy (DOE)'s Lawrence Berkeley National Laboratory (Berkeley Lab) and the University of California (UC) Berkeley, have unlocked the secret behind the activation of the Ras family of proteins, one of the most important components of cellular signaling ...

Compounded outcomes associated with comorbid Alzheimer's disease & cerebrovascular disease

2014-07-03
LEXINGTON, Ky. (July 3, 2014) -- Researchers from the Sanders-Brown Center on Aging at the University of Kentucky have been able to confirm anecdotal information on patients with both Alzheimer's disease (AD) and cerebrovascular disease (CVD) using mouse models in two different studies. The findings of these two studies, which were recently published in Acta Neuropathologica and Alzheimer's Research & Therapy, have potentially significant implications for patients with both disorders. Both papers studied CVD in Alzheimer's disease mouse models using different lifestyle ...

Biochemical cascade causes bone marrow inflammation, leading to serious blood disorders

Biochemical cascade causes bone marrow inflammation, leading to serious blood disorders
2014-07-03
VIDEO: Like a line of falling dominos, a cascade of molecular events in the bone marrow produces high levels of inflammation that disrupt normal blood formation and lead to potentially deadly... Click here for more information. INDIANAPOLIS -- Like a line of falling dominos, a cascade of molecular events in the bone marrow produces high levels of inflammation that disrupt normal blood formation and lead to potentially deadly disorders including leukemia, an Indiana University-led ...

How knots can swap positions on a DNA strand

How knots can swap positions on a DNA strand
2014-07-03
Physicists of Johannes Gutenberg University Mainz (JGU) and the Graduate School of Excellence "Materials Science in Mainz" (MAINZ) have been able with the aid of computer simulations to confirm and explain a mechanism by which two knots on a DNA strand can interchange their positions. For this, one of the knots grows in size while the other diffuses along the contour of the former. Since there is only a small free energy barrier to swap, a significant number of crossing events have been observed in molecular dynamics simulations, i.e., there is a high probability of such ...

From pencil marks to quantum computers

From pencil marks to quantum computers
2014-07-03
Introducing graphene One of the hottest materials in condensed matter research today is graphene. Graphene had an unlikely start: it began with researchers messing around with pencil marks on paper. Pencil "lead" is actually made of graphite, which is a soft crystal lattice made of nothing but carbon atoms. When pencils deposit that graphite on paper, the lattice is laid down in thin sheets. By pulling that lattice apart into thinner sheets – originally using Scotch tape – researchers discovered that they could make flakes of crystal just one atom thick. The name ...

Payback time for soil carbon from pasture conversion to sugarcane production

2014-07-03
The reduction of soil carbon stock caused by the conversion of pasture areas into sugarcane plantations – a very common change in Brazil in recent years – may be offset within two or three years of cultivation. The calculation appears in a study conducted by researchers at the Center for Nuclear Energy in Agriculture (CENA) of the University of São Paulo (USP) in collaboration with colleagues from the Luiz de Queiroz College of Agriculture (Esalq), also at USP. The study also included researchers from the Federal Institute of Alagoas (IFAL), the Brazilian Bioethanol Science ...

New satellite data like an ultrasound for baby stars

2014-07-03
An international team of researchers have been monitoring the "heartbeats" of baby stars to test theories of how the Sun was born 4.5 billion years ago. In a paper published in Science magazine today, the team of 20 scientists describes how data from two space telescopes – the Canadian Space Agency's MOST satellite and the French CoRoT mission – have unveiled the internal structures and ages of young stars before they've even emerged as full-fledged stars. "Think of it as ultrasound of stellar embryos," explains University of British Professor Jaymie Matthews, MOST ...

A young star's age can be gleamed from nothing but sound waves

A young stars age can be gleamed from nothing but sound waves
2014-07-03
VIDEO: In a young region like the so-called Christmas Tree Cluster, stars are still in the process of forming. A star is 'born' once it becomes optically visible (bottom right). During... Click here for more information. Determining the age of stars has long been a challenge for astronomers. In experiments published in the journal Science, researchers at KU Leuven's Institute for Astronomy show that 'infant' stars can be distinguished from 'adolescent' stars by measuring the acoustic ...

Sweet genes

2014-07-03
Edmonton, July 3, 2014 – A research team at the Faculty of Medicine & Dentistry at the University of Alberta have discovered a new way by which metabolism is linked to the regulation of DNA, the basis of our genetic code. The findings may have important implications for the understanding of many common diseases, including cancer. The DNA wraps around specialized proteins called histones in the cell's nucleus. Normally, histones keep the DNA tightly packaged, preventing the expression of genes and the replication of DNA, which are required for cell growth and division. ...

NASA sees rainfall in newborn Tropical Depression 8W

NASA sees rainfall in newborn Tropical Depression 8W
2014-07-03
Powerful thunderstorms in some areas of newborn Tropical Depression 08W in the Northwestern Pacific Ocean were dropping heavy rainfall on July 3 as NASA's Tropical Rainfall Measuring Mission (TRMM) satellite passed overhead. The eighth depression of the Northwestern Pacific Ocean season formed on July 3 at 0900 UTC (5 a.m. EDT). It was located near 10.0 north latitude and 144.3 east longitude about 240 nautical miles south of Andersen Air Force Base, Guam. Tropical Depression 08W or TD08W had maximum sustained winds near 30 knots (34.5 mph/55.5 kph) and it was moving ...

Safer, cheaper building blocks for future anti-HIV and cancer drugs

2014-07-03
A team of researchers from KU Leuven, in Belgium, has developed an economical, reliable and heavy metal-free chemical reaction that yields fully functional 1,2,3-triazoles. Triazoles are chemical compounds that can be used as building blocks for more complex chemical compounds, including pharmaceutical drugs. Leveraging the compound's surprisingly stable structure, drug developers have successfully used 1,2,3-triazoles as building blocks in various anti-HIV, anti-cancer and anti-bacterial drugs. But efforts to synthesize the compound have been hampered by one serious ...

Tropical Storm Douglas weakening in the eastern Pacific

Tropical Storm Douglas weakening in the eastern Pacific
2014-07-03
Tropical Storm Douglas is on a weakening trend, according to the National Hurricane Center, and satellite imagery showed that the storm appeared more elongated on July 3. NOAA's Geostationary Operational Environmental Satellite or GOES-West satellite captured visible data on Douglas just after sunrise on July 3 at 13:15 UTC (9:15 a.m. EDT). The data from GOES-West was made into an image at NASA/NOAA's GOES Project at the NASA Goddard Space Flight Center in Greenbelt, Md. Forecaster Stewart at the National Hurricane Center cited that Douglas' thunderstorm activity had ...

Rethinking the reef

Rethinking the reef
2014-07-03
A new study by biologists at San Diego State University and Scripps Institution of Oceanography shows that inhabited coral islands that engage in commercial fishing dramatically alter their nearby reef ecosystems, disturbing the microbes, corals, algae and fish that call the reef home. The study's lead author, Linda Wegley Kelly, is a postdoctoral scholar in the lab of SDSU virologist Forest Rohwer. For the study, she looked at seawater samples collected from the surfaces of reefs surrounding all 11 of the Line Islands, a chain of atolls in the central Pacific Ocean. ...

Fruit fly immunity fails with fungus after (space)flight

Fruit fly immunity fails with fungus after (space)flight
2014-07-03
Before you swat away the next fruit fly, consider instead just how similar its biological complexities are to our own. In a study published in PLOS ONE, researchers led by Deborah Kimbrell, Ph.D., at the University of California, Davis (UC Davis) and their collaborators, studied how microorganisms may alter fruit flies' immunity in space and in hypergravity, or increased gravity. The article is titled "Toll Mediated Infection Response Is Altered by Gravity and Spaceflight in Drosophila." This study suggests that having normal gravity or hypergravity on the space station ...

Drug shows promise for effectively treating metabolic syndrome

2014-07-03
(SALT LAKE CITY)—University of Utah researchers have discovered that an enzyme involved in intracellular signaling plays a crucial role in developing metabolic syndrome, a finding that has a U of U spinoff company developing a drug to potentially treat the condition. The researchers, led by Jared Rutter, Ph.D., professor of biochemistry, hope to begin human clinical trials of a drug in the next couple of years. "The approved drug therapies do not treat or prevent this condition in most people," says Rutter, senior author of a study describing the research published ...

With 'ribbons' of graphene, width matters

With ribbons of graphene, width matters
2014-07-03
MILWAUKEE – Using graphene ribbons of unimaginably small widths – just several atoms across – a group of researchers at the University of Wisconsin-Milwaukee (UWM) has found a novel way to "tune" the wonder material, causing the extremely efficient conductor of electricity to act as a semiconductor. In principle, their method for producing these narrow ribbons – at a width roughly equal to the diameter of a strand of human DNA – and manipulating the ribbons' electrical conductivity could be used to produce nano-devices. Graphene, a one-atom-thick sheet of carbon atoms, ...

Bone marrow fat tissue secretes hormone that helps body stay healthy

2014-07-03
ANN ARBOR, Mich. — It has been known for its flavorful addition to soups and as a delicacy for dogs but bone marrow fat may also have untapped health benefits, new research finds. A University of Michigan-led study shows that the fat tissue in bone marrow is a significant source of the hormone adiponectin, which helps maintain insulin sensitivity, break down fat, and has been linked to decreased risk of cardiovascular disease, diabetes, and obesity-associated cancers. The findings appear in today's online-ahead-of-print issue of Cell Metabolism. Bone marrow adipose ...

NASA sees Hurricane Arthur's cloud-covered eye

NASA sees Hurricane Arthurs cloud-covered eye
2014-07-03
When NASA's Aqua satellite passed over Tropical Storm Arthur on July 2 at 2:50 p.m. EDT on July 2, it saw a cloud-covered eye as the storm was on the way to becoming a hurricane. This visible image of Tropical Storm Arthur was captured by the Moderate Resolution Imaging Spectroradiometer or MODIS instrument that flies aboard NASA's Aqua satellite. Arthur's center was over the Atlantic Ocean and east of Florida's northeast coast. By 5 a.m. EDT on July 3, Arthur's eye had formed but remained cloud covered even as the storm hit hurricane-strength with maximum sustained ...

Cellular defence against fatal associations between proteins and DNA

Cellular defence against fatal associations between proteins and DNA
2014-07-03
This news release is available in German. DNA - the carrier of genetic information - is constantly threatened by damage originating from exogenous and endogenous sources. Very special DNA lesions are DNA-protein crosslinks - proteins covalently linked to DNA. So far hardly anything was known about repair mechanisms specifically targeting DNA-protein crosslinks. Stefan Jentsch's team at the Max Planck Institute of Biochemistry in Martinsried, Germany, now discovered a protease that is able to chop down the protein component of DNA-protein crosslinks, thereby enabling ...

'Grass-in-the-ear' technique sets new trend in chimp etiquette

Grass-in-the-ear technique sets new trend in chimp etiquette
2014-07-03
Chimpanzees are copycats and, in the process, they form new traditions that are often particular to only one specific group of these primates. Such are the findings of an international group of scientists, who waded through over 700 hours of video footage to understand how it came about that one chimpanzee stuck a piece of grass in her ear and started a new trend, and others soon followed suit. The findings of the study, led by Edwin van Leeuwen of the Max Planck Institute for Psycholinguistics in The Netherlands, are published in Springer's journal Animal Cognition. In ...

GW researchers: Acute kidney injury and chronic kidney disease as interconnected syndromes

2014-07-03
WASHINGTON (July 3, 2014) — For more than 40 years, physicians have treated diminished kidney function as two distinct syndromes: acute kidney injury (AKI) and chronic kidney disease (CKD). However, recent epidemiologic and mechanistic studies suggest the two syndromes are not distinct entities, but interconnected. Published today in The New England Journal of Medicine, George Washington University (GW) researchers call for greater follow-up care of patients with AKI, who often present with CKD later in life, and vice versa. "Our teaching has been wrong and the approach ...

Weighing up the secrets of African elephant body fat

2014-07-03
A research team from The University of Nottingham has carried out the first molecular characterisation of the African elephant's adipose tissue — body fat. This new information will form the basis of future studies aimed at securing the health and future survival of captive elephants. The population of captive elephants, both Asian and African, in Europe and North America is not self-sustaining, largely due to poor fertility, resulting in a fewer baby elephants being born. It is acknowledged that if a solution for these reproductive difficulties cannot be found quickly, ...

Identifying microbial species

Identifying microbial species
2014-07-03
Millions of microbial species populate the world, but so far only a few have been identified due to the inability of most microbes to grow in the laboratory. Edgar Goluch, an engineer, and Slava Epstein, a biologist, aim to change this. The pair, both researchers at Northeastern University, has developed a device that allows scientists to cultivate a single species of bacteria that can then be studied and identified. Goluch's previous research devices incorporated permeable membranes that allow sequestered bacteria to be exposed to the nutrients and molecules of their ...

Women veterans want options, follow up support when dealing with intimate partner violence

2014-07-03
(Boston)--Intimate partner violence (IPV) is a significant health issue faced by women veterans, but little has been known up until now about their preferences for IPV-related care. A new study has found that most of these women support routine screening for IPV and want options, follow-up support, transparent documentation and Veterans Health Administration (VHA) and community resources. These findings appear in the journal Research in Nursing and Health. Although women of all socio-demographic groups are at risk for IPV, population-based research suggests that women ...
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