The frequency of nuisance tidal flooding in many U.S. cities was predicted for the 2015 meteorological year, from May 2015 to April 2016, according to a new NOAA report.

Simon Fraser University research aimed at helping people get to sleep will be highlighted at an international sleep conference next week. Luc Beaudoin, an adjunct professor in cognitive science and education, created the mySleepButton® app two years ago (a new version with the world's first configurable "body scan" will be released shortly).

It uses what he calls a "cognitive shuffle," or Serial Diverse Imagining (SDI), a method that essentially "scrambles" one's thoughts and keeps the mind off issues that may prevent sleep. "A racing mind, worries and uncontrollable thoughts are common bedtime complaints among poor sleepers," Beaudoin notes.

Hellisheidi power plant in Iceland is the world's largest geothermal facility and now it has one other distinction. Engineers there have shown that carbon dioxide emissions can be pumped into the earth and changed chemically to stone within months, far faster than believed.

Researchers have developed a compound that can transform near-infrared light into broadband white-light, offering a cheap, efficient means to produce visible light. The emitted light is also exceedingly directional, a desirable quality for devices like microscopes that require high spatial resolution, or for applications with high throughput, such as projection systems. Nils Wilhelm Rosemann and colleagues designed their compound of tin and sulfur, and with a diamondoid-like structure, then coating this scaffolding with organic ligands. When a laser directs near-infrared light into the compound, the structure of the compound alters the wavelength of the light through a non-linear interaction process, producing light at wavelengths that are visible to the human eye.

RIVERSIDE, Calif. - Toxoplasma gondii, a protozoan parasite about five microns long, infects a third of the world's population. Ingested via undercooked meat or unwashed vegetables, the parasite infects 15-30 percent of the US population. In France and Brazil, up to 80 percent of the population has the infection.

Particularly dangerous during pregnancy - infection in pregnant women can cause serious congenital defects and even death of the fetus - this chronic infection has two components: the unicellular parasite, and inflammation of tissues it causes.

An isolated population of honeybees, the Cape bees, living in South Africa has evolved a strategy to reproduce without males. A research team from Uppsala University has sequenced the entire genomes of a sample of Cape bees and compared them with other populations of honeybees to find out the genetic mechanisms behind their asexual reproduction.

Most animals reproduce sexually, which means that both males and females are required for the species to survive. Normally, the honeybee is no exception to this rule: the female queen bee produces new offspring by laying eggs that have been fertilised by sperm from male drones. However, one isolated population of honeybees living in the southern Cape of Africa has evolved a strategy to do without males.