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Key: Meeting M      Journal J      Funder F

Showing releases 101-125 out of 572 releases.
Click to go to page: [ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 ]

Public Release: 2-Jun-2015
Proceedings of the National Academy of Sciences
Evolution of human body composition

Human skin, fat, and muscle proportions differ significantly from those of bonobos, suggesting evolutionary factors that may have shaped the body structure of Homo sapiens, according to a study. A lack of fossilized soft tissues precludes comparison of the musculature, fat distribution, and skin of human ancestors with modern humans.

Contact: Luwam Yeibio
PNASnews@nas.edu
202-334-1310
Proceedings of the National Academy of Sciences

Public Release: 2-Jun-2015
Proceedings of the National Academy of Sciences
Controlling huanglongbing transmission

Researchers report that huanglongbing (HLB), a disease of citrus trees, can spread through a grove well before symptoms appear, and suggest improved control strategies. Current strategies to control HLB involve insecticide spraying and removing infected trees after symptoms begin to appear.

Contact: Luwam Yeibio
PNASnews@nas.edu
202-334-1310
Proceedings of the National Academy of Sciences

Public Release: 2-Jun-2015
JAMA
Multifaceted intervention associated with modest decrease in surgical site infections

Implementation of a pre-surgical intervention that included screening for the bacteria Staphylococcus aureus, treating patients who were positive for this bacteria, and the administration of antibiotics based on these culture results was associated with a modest reduction in S aureus surgical site infections, according to a study in the June 2 issue of JAMA.

Contact: Loreen A. Herwaldt, M.D.
jennifer-l-brown@uiowa.edu
319-356-7124
The JAMA Network Journals

Public Release: 2-Jun-2015
JAMA
Antidepressant use in late pregnancy may be associated with small, increased risk of respiratory disorder in newborns

An analysis of approximately 3.8 million pregnancies finds that use of antidepressants late in pregnancy may be associated with an increased risk of persistent pulmonary hypertension of the newborn (PPHN), according to a study in the June 2 issue of JAMA. However, the absolute risk was small and the risk increase appears more modest than suggested in previous studies. PPHN is a rare but life-threatening condition that occurs when a newborn's circulation system doesn't adapt to breathing outside the womb.

Contact: Krista F. Huybrechts,M.S.,Ph.D.
estpeter@partners.org
617-525-6375
The JAMA Network Journals

Public Release: 29-May-2015
Science
Northern ice caused southern rain during last Ice Age

Armadas of icebergs that broke off the Greenland ice sheet into the northern Atlantic Ocean during the Last Glacial Period -- between about 110,000 and 12,000 years ago -- often increased methane production in the tropics, according to a new study.

Contact: Natasha Pinol
scipak@aaas.org
202-326-6440
American Association for the Advancement of Science

Public Release: 29-May-2015
Science
Researchers use light to beat amnesia in mice

Memories that have been destabilized and forgotten by mice can nevertheless be retrieved by activating memory engrams, or specific patterns of neurons that fire when memories are encoded, with light, researchers say.

Contact: Natasha Pinol
scipak@aaas.org
202-326-6440
American Association for the Advancement of Science

Public Release: 29-May-2015
Science
A clear look at an efficient energy converter

Xiaochun Qin and colleagues provide a high-resolution crystal structure of an important plant protein supercomplex, shedding new light on an extremely efficient solar energy converter. The photosynthesis of many plants relies upon the large light-harvesting complex I (LHC1), which surrounds photosystem I (PSI) and captures sunlight. LHC1 is able to transfer the energy it absorbs to the PSI core, where it is converted into chemical energy with close to 100% efficiency.

Contact: Natasha Pinol
scipak@aaas.org
202-326-6440
American Association for the Advancement of Science

Public Release: 29-May-2015
Science
A good night’s sleep helps modify deeply rooted attitudes

Long-held social biases can be reduced during sleep, a new report suggests. It adds further support to recent research that has shown that memories can be selectively reactivated and strengthened during slumber. Scientists have known that sleep boosts memory formation by resuscitating neuronal traces shaped during earlier periods, when the individual was awake. This process can be experimentally stimulated by giving a sleeping individual cues related to an earlier period of learning.

Contact: Natasha Pinol
scipak@aaas.org
202-326-6440
American Association for the Advancement of Science

Public Release: 28-May-2015
Chinese Optics Letters
Small-spot X-ray irradiation from metal nanowire target

Researchers in Prof. Yuqiu Gu’s group, from Research center of Laser Fusion, China Academy of Engineering Physics, proposed a more efficient Kα X-ray source with metal nanowire target. The multiple nanowire structure helps generate high energy electrons with a smaller divergence angle, which makes it possible to produce a micro-focused X-ray source. It has great potential to be applied in the dynamical shock wave imaging field. It is reported in Chinese Optics Letters Vol.13, No.3, 2015.

Contact: Xiaofeng Wang
wxf@siom.ac.cn
Chinese Laser Press

Public Release: 28-May-2015
Science Translational Medicine
Synthetic bacteria noninvasively detect diabetes, cancer in urine

Researchers have designed bacteria that noninvasively detect diabetes and cancer, respectively, in urine. The studies, conducted by two separate groups, lay the groundwork for using synthetic bacteria as diagnostic tools in the clinic.

Contact: Jennifer Anderson
janderso@aaas.org
202-326-6440
American Association for the Advancement of Science

Public Release: 27-May-2015
Chinese Optics Letters
Novel optical scheme based on cryogenic radiometer for successive calibration

Researchers led by Prof. Xiaobin Zheng, from Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences designed and made use of a novel calibration optical path with the standard transfer detector which was placed inside the vacuum unit. This scheme theoretically eliminated the uncertainty caused by the window transmittance. It is reported in Chinese Optics Letters Vol.13, No.5, 2015.

Contact: Xiaofeng Wang
wxf@siom.ac.cn
0216-991-8198
Chinese Laser Press

Public Release: 27-May-2015
Developmental Cell
Tiny heart, big promise

The heart has its own dedicated blood supply, with coronary arteries that supply oxygen-rich blood to the heart and cardiac veins that remove deoxygenated blood. This system of vessels nourishes the heart, enabling it to pump blood to all the other organs and tissues of the body. Yet despite their critical importance, the process and molecules required for coronary vessel development have not been fully determined.

Contact: Ellin Kavanagh
ekavanagh@chla.usc.edu
323-361-8505
Children's Hospital Los Angeles

Public Release: 26-May-2015
Proceedings of the National Academy of Sciences
Sleepers among scientific articles

Scientific papers that lie dormant for years after publication and then see a spike in interest, measured by an increase in citations by other papers, may be more common than thought, a study suggests.

Contact: PNAS News Office
PNASnews@nas.edu
202-334-1310
Proceedings of the National Academy of Sciences

Public Release: 26-May-2015
Proceedings of the National Academy of Sciences
Competition between harmless and drug-resistant bacteria

Researchers report that pheromones produced by a bacterium that is native to the gut can kill multidrug-resistant strains of the same bacterium. Multidrug-resistant Enterococcus bacteria are leading causes of hospital-acquired infection, colonizing the gut after antibiotics disrupt native bacteria.

Contact: PNAS News Office
PNASnews@nas.edu
202-334-1310
Proceedings of the National Academy of Sciences

Public Release: 26-May-2015
Proceedings of the National Academy of Sciences
Also of interest from the Proceedings of the National Academy of Sciences

To find ovarian tumor-specific molecules that could be used as diagnostic and therapeutic targets, custom bioinformatics algorithms were developed and used to analyze gene expression data from 296 ovarian cancer tissues and 1,839 normal tissues, revealing 17 candidate RNA molecules produced by most of the cancer tissues but by few of the normal tissues, according to a study.

Contact: PNAS News Office
PNASnews@nas.edu
202-334-1310
Proceedings of the National Academy of Sciences

Public Release: 26-May-2015
Proceedings of the National Academy of Sciences
Oxidation chemistry of biogenic emissions

The structure of biogenic compounds emitted into the atmosphere can affect how the compounds are oxidized, according to a study. Aerosol particles, a major source of cloud condensation nuclei, can form from the oxidation of biogenic volatile organic compounds.

Contact: PNAS News Office
PNASnews@nas.edu
202-334-1310
Proceedings of the National Academy of Sciences

Public Release: 26-May-2015
JAMA
Soy isoflavone supplement does not improve symptoms, lung function for patients with poorly controlled asthma

Although some data have suggested that supplementation with soy isoflavone may be an effective treatment for patients with poor asthma control, a randomized trial that included nearly 400 children and adults found that use of the supplement did not result in improved lung function or clinical outcomes, including asthma symptoms and episodes of poor asthma control, according to a study in the May 26 issue of JAMA. Soy isoflavones are plant (soybean) derived chemicals that have anti-oxidant effects.

Contact: Marla Paul
marla-paul@northwestern.edu
312-503-8928
The JAMA Network Journals

Public Release: 26-May-2015
JAMA
Subclinical hyperthyroidism associated with an increased risk of hip and other fractures

In an analysis that included more than 70,000 participants from 13 studies, subclinical hyperthyroidism was associated with an increased risk for hip and other fractures including spine, according to a study in the May 26 issue of JAMA. Subclinical hyperthyroidism is a low serum thyroid-stimulating hormone concentration in a person without clinical symptoms and normal thyroid hormone concentrations on blood tests.

Contact: Nicolas Rodondi, M.D., M.A.S.
Nicolas.Rodondi@insel.ch
The JAMA Network Journals

Public Release: 23-May-2015
Journal of Applied Physics
Tunable liquid metal antennas

Using electrochemistry, North Carolina State University researchers have created a reconfigurable, voltage-controlled liquid metal antenna that may play a huge role in future mobile devices and the coming Internet of Things

Contact: Zhengzheng Zhang
zzhang@aip.org
001-301-209-3099
American Institute of Physics

Public Release: 22-May-2015
Science
Inland ice in Antarctica melting fast

Many glaciers on the Southern Antarctic Peninsula (SAP) became destabilized in 2009 and have melted at accelerating rates since then, researchers say. These glaciers, which rest on bedrock that dips below sea level toward the continent’s interior, help to buttress inland ice shelves -- but their structures are thought to be unstable.

Contact: Natasha Pinol
scipak@aaas.org
202-326-6440
American Association for the Advancement of Science

Public Release: 22-May-2015
Science
Similarities seen between cancerous and sun-Exposed cells

Normal human skin cells harbor a surprisingly large number of acquired mutations, including many known cancer-promoters that are under strong positive selection, researchers say. These new findings reveal that so-called driver mutations, which are known to accumulate in certain skin cancer cells, also occur frequently in normal, sun-exposed skin cells.

Contact: Natasha Pinol
scipak@aaas.org
202-326-6440
American Association for the Advancement of Science

Public Release: 22-May-2015
Science
Paraplegic patient reveals neurons behind planning

Microelectrodes implanted in the brain of a paraplegic patient are telling researchers more about the neuronal activity underlying our physical movements. These new findings represent an important step toward improved neuro-prosthetic devices, highlighting the crucial role of the posterior parietal cortex (PPC) in both actual and imagined movements.

Contact: Natasha Pinol
scipak@aaas.org
202-326-6440
American Association for the Advancement of Science

Public Release: 22-May-2015
Science
Tara Oceans Expedition yields treasure trove of plankton data

In five related reports in this issue of the journal Science, a multinational team of researchers who spent three and a half years sampling the ocean’s sunlit upper layers aboard the schooner Tara unveil the first results of the Tara Oceans project. Planktonic life in the ocean is far more diverse than scientists knew, these reports show.

Contact: Natasha Pinol
scipak@aaas.org
202-326-6440
American Association for the Advancement of Science

Public Release: 21-May-2015
China Century signs agreement with University of Chicago Medicine

China Century Group and the University of Chicago Medicine signed an exclusive agreement Thursday to improve health care delivery in China by bringing international standards and best practices to hospitals across the country.

Contact: Emilio Williams
Emilio.Williams@uchospitals.edu
773-702-4617
University of Chicago Medical Center

Public Release: 21-May-2015
Science Translational Medicine
Overlooked protein drives tissue fibrosis

A new study uncovers an overlooked protein’s role in driving fibrosis, or excessive scarring of tissue. Blocking this protein, known as αvβ1 integrin, reduced fibrotic tissue in mice, offering a new strategy for treating this disease.

Contact: Jennifer Anderson
janderso@aaas.org
202-326-6466
American Association for the Advancement of Science

Showing releases 101-125 out of 572 releases.
    Click to go to page: [ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 ]