الاثنين، 29 فبراير 2016

ScienceDaily: Top News

ScienceDaily: Top News


Electron microscopy captures snapshot of structure coronaviruses use to enter cells

Posted: 26 Feb 2016 02:32 PM PST

A detailed analysis has been made, at the atomic level, of an infection mechanism of coronaviruses, the agents of both mild and deadly respiratory illness in people and animals. The model of the coronavirus spike protein, which promotes entry into cells, may inspire design of antibodies to block a variety of coronaviruses. It also offers clues about the animal species or cell types a coronavirus is primed to attack.

3-D analysis and CAD/CAM techniques lead to new advances in plastic and reconstructive surgery

Posted: 26 Feb 2016 11:41 AM PST

Three-dimensional analysis, virtual surgical planning, and computer-aided design and manufacturing techniques are leading to new and refined approaches to reconstructive surgery of the skull, face, and jaw, according to a special topic article.

Preventing protein unfolding

Posted: 26 Feb 2016 11:41 AM PST

A computational model shows that polymers can reinforce proteins to prevent them from unfolding under mechanical forces.

Light reflectance technique improves ability to remove prostate cancer during surgery

Posted: 26 Feb 2016 11:41 AM PST

Researchers have determined that light reflectance spectroscopy can differentiate between malignant and benign prostate tissue with 85 percent accuracy, a finding that may lead to real-time tissue analysis during prostate cancer surgery.

Zika virus: Approaching the unknown

Posted: 26 Feb 2016 11:41 AM PST

Understanding the scale and range of neurological disease associated with Zika virus infection is an urgent priority, warn researchers.

HIV in Rhode Island: Newly diagnosed men often 'hooked up' online

Posted: 26 Feb 2016 11:41 AM PST

A strong correlation has been found between new HIV diagnoses among men who have sex with men in Rhode Island and their use of online hookup sites. Study authors have called for operators of hookup websites and apps to work with public health officials to include more prevention messaging.

Palliative care important for prison population, too

Posted: 26 Feb 2016 11:41 AM PST

With an increasingly aging prison population, end-of-life care for inmates is becoming a more prominent issue, according to researchers. End-of-life care can be complicated, no matter who the patient is, but can be especially challenging for those behind bars.

108 million people have correctable vision impairment, global study estimates

Posted: 26 Feb 2016 11:41 AM PST

Uncorrected refractive error -- nearsightedness, farsightedness, and other focusing problems correctable by prescription lenses -- is responsible for moderate to severe vision impairment in 101 million people and blindness in seven million people worldwide, reports a new study.

First in-human vaccine study for malaria caused by Plasmodium vivax

Posted: 26 Feb 2016 11:39 AM PST

Researchers recently published the results of testing a Plasmodium vivax malaria vaccine candidate in a human challenge model.

New research unveils graphene 'moth eyes' to power future smart technologies

Posted: 26 Feb 2016 11:39 AM PST

New research has shown how graphene can be manipulated to create the most light-absorbent material for its weight, to date.

Artificial control of exciplexes opens possibilities for new electronics

Posted: 26 Feb 2016 11:39 AM PST

Demonstrating a strategy that could form the basis for a new class of electronic devices with uniquely tunable properties, researchers were able to widely vary the emission color and efficiency of organic light-emitting diodes based on exciplexes simply by changing the distance between key molecules in the devices by a few nanometers.

Immune cell 'switch' discovery raises hopes in cancer fight

Posted: 26 Feb 2016 10:36 AM PST

Researchers have discovered the mechanism that drives specialized immune cells that detect and kill cancer cells in the body, offering scientists a new way to develop potential drug targets and cancer treatments.

Barrow neurosurgeon helps pave way for deep brain stimulation and Alzheimer's

Posted: 26 Feb 2016 10:36 AM PST

Neurosurgeons at Barrow Neurological Institute in Phoenix are involved with testing the viability of deep brain stimulation (DBS) to treat Alzheimer's disease, a disorder that currently has few treatment options. Results from the Phase 2 study, reported in the Journal of Neurosurgery on Dec. 18, 2015, demonstrated the safety of DBS in Alzheimer's patients.

Study finds 36 percent increase in number of male smokers in India

Posted: 26 Feb 2016 10:36 AM PST

The number of men smoking tobacco in India rose by more than one-third to 108 million between 1998 and 2015, according to a new study.

Solar cells as light as a soap bubble

Posted: 26 Feb 2016 10:36 AM PST

Imagine solar cells so thin, flexible, and lightweight that they could be placed on almost any material or surface, including your hat, shirt, or smartphone, or even on a sheet of paper or a helium balloon. Researchers have now demonstrated just such a technology: the thinnest, lightest solar cells ever produced.

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