A research team has created a prototype video camera that is fully self-powered.

Solar panels and digital cameras obviously have different purposes - one converts light to power while the other simply measures it - but both are constructed from essentially the same components. At the heart of any digital camera is an image sensor, a chip with millions of pixels. The key enabling device in a pixel is the photodiode, which produces an electric current when exposed to light. This mechanism enables each pixel to measure the intensity of light falling on it. The same photodiode is also used in solar panels to convert incident light to electric power. 

Malaria is a critical health problem in West Africa, 11 percent of deaths are related to it, but for a variety of reasons they have more confidence in alternative medicine than they do modern health care practices. 

However, some herbal medicines work and an analysis of the pharmacological properties of an herbal medication derived from Cochlospermum planchonii (a shrubby weed known as N'Dribala), Phyllanthus amarus and Cassia alata shows that it may be the case with SAYE, which means “jaundice” in the Dioula language. 

It is estimated that 5% of women experience two clinical miscarriages and approximately 1% suffer three or more losses. 

Researchers at the University of Warwick and University Hospitals Coventry and Warwickshire (UHCW) NHS Trust have found that body clock genes could affect women's ability to have children. The study pinpoints how body clock genes are temporarily switched off in the lining of the womb to allow an embryo to implant. Timing of this event is critical for pregnancy. 

While a debate was raging between scientists and government regulators on how best to explain to patients the risks of participating in clinical research studies that compare standardized treatments, a team of bioethicists boldly went where no experts had gone before -- to the public.

The response? Keep it simple, but always ask permission, even when the research only involves gathering data from anonymized medical records. 

A liquid form of marijuana shows promise as a treatment for children with severe epilepsy, according to a study released today which involved 213 people, ranging from toddlers to adults, with a median age of 11 who had severe epilepsy that did not respond to other treatments.

Participants had Dravet syndrome and Lennox-Gastaut syndrome, epilepsy types that can lead to intellectual disability and lifelong seizures, as well as 10 other types of severe epilepsy. 

A real-world analysis of human behavior finds that men treat online giving as a competitive enterprise: Men will donate four times more money to an attractive female fundraiser if they feel like they are in competition with another male, which evolutionary psychologists contend is a subconscious sexual mandate based on biology.

A breakthrough in artificial photosynthesis has been achieved with the development of  a hybrid system of semiconducting nanowires and bacteria that can capture carbon dioxide emissions before they are vented into the atmosphere and then, powered by solar energy, convert that carbon dioxide into valuable chemical products, including biodegradable plastics, pharmaceutical drugs and liquid fuels. 

The system mimics the natural photosynthetic process by which plants use the energy in sunlight to synthesize carbohydrates from carbon dioxide and water but this artificial photosynthetic system synthesizes the combination of carbon dioxide and water into acetate, the most common building block today for biosynthesis.

The humanities are considered the least discriminatory academic discipline - known cases of discrimination do not reach statistical significance - but women and minorities are still collectively ignored at 1.4 times the rate of Caucasian males when seeking guidance about their futures.

With the 25th anniversary of the Hubble Space Telescope next week, people are again thinking about its big successor. The very first month that this part of Science 2.0, the communications portal, went live, in January of 2007, we had an update on the James Webb Space Telescope and it was already way behind schedule. 

In a recent study, scientists have presented a new technique that significantly reduces the halo effect that is generated when using multi-focal. contact and intra-ocular, lenses and looking at bright point sources in dark conditions.

Presbyopia is a result of natural aging and stems from a gradual thickening and decrease in elasticity of the lens inside the eye. Corrective lenses used to address presbyopia often lead to a halo effect. This is basically a glow or color light pattern observed when looking at a bright source of light in front of a dark background.

It is mostly experienced at night when people see halos around street lamps and car headlights, and it can make driving at night unsafe or even impossible in extreme cases.