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Research team of Ulsan National Institute of Science and Technology (UNIST), Ulsan, South Korea, developed high-performance organic phototransistors (OPTs) based on single-crystalline n-channel organic nanowires.

The first randomised trial to compare treatments for ectopic pregnancies has found no significant differences in subsequent fertility between medical treatment and conservative surgery on one hand, and conservative or radical surgery on the other.

(TORONTO, Canada – March 13, 2013) – A team of Canadian and international cancer researchers led by Dr. Brenda Gallie at the Princess Margaret Cancer Centre, University Health Network (UHN), has discovered a new type of retinoblastoma, a rapidly developing eye cancer that affects very young babies– a finding that can immediately change clinical practice and optimize care for these children.

Citizen science surveys compare well with traditional scientific methods when it comes to monitoring species biodiversity – according to new research from the University of East Anglia.

Research published today in the journal Methods in Ecology and Evolution shows that methods to record marine diversity used by amateurs returned results consistent with techniques favoured by peer-reviewed science.

An HIV prevention strategy in which people at risk of becoming exposed to HIV take antiretroviral drugs to reduce their chance of becoming infected (often referred to as pre-exposure prophylaxis or PrEP), may be a cost-effective method of preventing HIV in some settings, according to a study by international researchers published in this week's PLOS Medicine.

When Gulf of Mexico algae don't get enough nutrients, they focus their remaining energy on becoming more and more poisonous to ensure their survival, according to a new study by scientists from North Carolina State University and the National Oceanic and Atmospheric Administration.

Substantial regional variation in Medicare spending for patients with advanced cancer is not linked to differences in survival, according to a study published March 12 in the Journal of the National Cancer Institute.

Among adults without diabetes, quitting smoking, compared with continuing smoking, was associated with a lower risk of cardiovascular disease despite subsequent weight gain, according to a study appearing in the March 13 issue of JAMA.

In research that included nearly 14,000 healthy infants in Belarus, an intervention that succeeded in improving the duration and exclusivity of breastfeeding during infancy did not result in a lower risk of overweight or obesity among the children at age 11.5 years, according to a study appearing in the March 13 issue of JAMA.

An analysis of data from the Framingham Offspring Study – a long-term study that follows children of participants in the original Framingham Heart Study – may have answered a question that has troubled individuals considering stopping smoking: do the health effects of any weight gained after quitting outweigh the known cardiovascular benefits of smoking cessation? The report in the March 13 issue of JAMA concludes that the benefits of stopping smoking far exceed any weight-gain associated risk.

Mouse model studies show that administered genetically or topically, protein Smad7 protects against or heals mouth sores commonly associated with cancer treatment.

AUGUSTA, Ga. – A guidance cue that helps kidneys form may also be a red flag that they are in danger, researchers report.

Acute kidney injury, a common and serious complication of hospitalization, is on the increase worldwide, affecting an estimated 6 percent of all hospitalized patients and 30-40 percent of adults and children having cardiopulmonary bypass surgery.

Dog-strangling vine (Vincetoxicum rossicum) is an exotic plant originating from the Ukraine and southeastern Russia that is becoming increasingly invasive in southern Ontario, Canada. It has been found growing successfully in both disturbed and undisturbed areas, in open fields, forest edges and understories, parks, road edges and railway embankments.

A University of Colorado Cancer study published this week in the journal Carcinogenesis shows that bitter melon juice restricts the ability of pancreatic cancer cells to metabolize glucose, thus cutting the cells' energy source and eventually killing them.

Encrypting a message with a strong code is the only safe way to keep your communications secret, but it will be obvious to anyone seeing such a message that the sender is hiding something, regardless of whether they are encrypting their emails for legitimate or illicit purposes. Steganography on the other hand can hide a secret message in plain sight. Often a message is secreted within the binary strings of 0s and 1s in a compressed image or music file format.