Thursday, 23 February 2017
News with tag Researchers  RSS
Viruses support photosynthesis in bacteria

Added: 23.02.2017 18:54 | 0 views | 0 comments

Viruses propagate by infecting a host cell and reproducing inside. This not only affects humans and animals, but bacteria as well. This type of virus is called bacteriophage. They carry so called auxiliary metabolic genes in their genome, which are responsible for producing certain proteins that give the virus an advantage. Researchers have analyzed the structure of such a protein more closely. It appears to stimulate the photosynthesis of host bacteria.

Stingless bees have their nests protected by soldiers

Added: 23.02.2017 18:54 | 0 views | 0 comments

Although stingless bees do not have a sting to fend off enemies, they are nonetheless able to defend their hives against attacks. Only four years ago it was discovered that a Brazilian bee species, the Jatai bee, has a soldier caste. The slightly larger fighters guard the entrance to the nest and grip intruders with their powerful mandibles in the event of an attack. Now researchers have identified four further species which produce a special soldier caste to defend their nests.

Sorting out risk genes for brain development disorders

Added: 23.02.2017 18:54 | 0 views | 0 comments

Gene discovery research is uncovering similarities and differences underlying a variety of disorders affecting the developing brain, including autism, attention deficits, tics, intellectual impairments, developmental delays and language difficulties. Researchers found some genes are more closely associated with autism and others with intellectual impairments, but many times there is overlap, indicating some genes pose broader risks. Certain genes were detected only in males with high-functioning autism.

Scientists close in on cracking 'Enigma Code' of common cold

Added: 23.02.2017 18:54 | 0 views | 0 comments

Scientists say they are a step closer to cracking, what researchers have dubbed, the 'enigma code' of the common cold virus.

Researchers ponder the shape of birds' eggs

Added: 23.02.2017 18:54 | 0 views | 0 comments

The shape of birds' eggs varies considerably, for reasons that are unclear, outlines a new report.

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Link between aging, devastating lung disease discovered

Added: 23.02.2017 18:54 | 0 views | 0 comments

A new study has shown evidence linking the biology of aging with idiopathic pulmonary fibrosis, a disease that impairs lung function and causes shortness of breath, fatigue, declining quality of life, and, ultimately, death. Researchers believe that these findings are the next step toward a possible therapy for individuals suffering from idiopathic pulmonary fibrosis.

A prescription with legs

Added: 23.02.2017 18:54 | 0 views | 0 comments

Physician-delivered step count prescriptions, combined with the use of a pedometer, can lead to a 20 per cent increase in daily steps, as well as measurable health benefits, such as lower blood sugar and lower insulin resistance, for patients with hypertension and/or type 2 diabetes, report researchers.

The unexpected supramolecular chemistry of nitrate anions

Added: 23.02.2017 18:54 | 0 views | 0 comments

A team of researchers argues that the nitrate anion can display a counterintuitive Lewis acidity. Their findings may serve as a (retrospective) guide to interpret data involving the chemical behavior of nitrate anions, which are ubiquitous in nature.

Researchers aim to disrupt egg production in dengue- and Zika-spreading mosquito

Added: 23.02.2017 18:54 | 0 views | 0 comments

The mosquito Aedes aegypti, which can spread dengue fever, chikungunya, Zika fever, and yellow fever virus, requires a blood meal to develop eggs. One way to control the spread of these diseases is to tamper with the reproductive events that follow this mosquito's blood meal. A team of scientists has explored this at the molecular level. They focused on microRNAs, which play a critical role in mosquito egg maturation.

National dose levels established for 10 common adult CT examinations

Added: 23.02.2017 18:54 | 0 views | 0 comments

Using data from the world's largest CT dose index registry, researchers have established national dose levels for common adult CT examinations based on patient size. Healthcare facilities can optimize these exam protocols so that dose is commensurate with the size of the patient, avoiding unnecessary radiation exposure.

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