DNA repair observed in living bacteria
Researchers report a technique to observe DNA repair in living bacteria. Damage caused by mutagens to the nucleotide bases of DNA is reversed by a process called base excision repair, executed by a...
View ArticleHow a wildebeest herpesvirus threatens cattle
An engineered virus may help protect cattle from a deadly disease known as malignant catarrhal fever, transmitted by wildebeest during their annual migration through the Serengeti and Maasai Mara...
View ArticleCompounds in honey may aid detoxification and immunity in honey bees
A study identifies compounds in honey that may stimulate honey bees’ defenses against chemical and biological threats. Previous studies have shown that honey extract induces the expression of...
View ArticleBrain measures predict math tutoring outcomes in children
Measures of brain structure and connectivity predict how much a child’s mathematical problem solving ability improves with math tutoring, according to a study. Kaustubh Supekar and colleagues...
View ArticleEconomic model explains third-world fertility declines
A rapid decline in birth rates among women in rural Bangladesh is explained by economic changes that affect people’s motivations for investment in themselves and their children, a study finds. Mary...
View ArticleStudy finds that 2 doses of HPV vaccine in girls may offer similar level of...
With the number of doses and cost of human papillomavirus (HPV) vaccines a barrier to global implementation, researchers have found that girls who received two doses of HPV vaccine had immune responses...
View ArticleOptimal vitamin D dosage for infants uncertain
In a comparison of the effect of different dosages of vitamin D supplementation in breastfed infants, no dosage raised and maintained plasma concentrations within a range recommended by some pediatric...
View ArticleSimultaneous N-intercalation and N-doping of epitaxial graphene on...
A simple method has been used to achieve simultaneous N intercalation and N-doping at graphene/SiC(0001) surfaces through thermal reactions with NH3. The majority of N atoms are intercalated under the...
View ArticleZnO hierarchical aggregates: solvothermal synthesis and application in...
ZnO hierarchical aggregates were synthesized by solvothermal methods through reaction of zinc acetate and potassium hydroxide. The shapes of aggregates were controlled by proportion of Zn2+ and OH‐ ,...
View ArticleSynthesis of a sulfur–graphene composite as an enhanced metal-free photocatalyst
A novel metal-free photocatalyst - sulfur/graphene (S/GR) composite - has been synthesized using a facile hydrothermal method with thiosulfate and graphene oxide as precursors and L-ascorbic acid as...
View ArticleA green synthesis of carbon nanoparticles from honey and their use in...
Millions of breast cancer patients undertake insidious sentinel lymph node biopsy (SLNB) to establish the metastatic nature of the disease. Researchers from Washington University in STL, USA in...
View ArticleSpecial focus of the Seismological Research Letters May/June issue
The growing network of GPS stations has transformed the study of earthquakes, allowing scientists to observe and track very low frequency, seismic activity associated with slow slip or "silent...
View ArticleSleep mutation tied to migraines
An enzyme that alters sleep patterns also causes changes in brain activity that may trigger migraines, reports a new study. Called casein kinase, the enzyme could be a potential target for treating...
View ArticleTroubling levels of toxic metals found in lipstick
Berkeley — A new analysis of the contents of lipstick and lip gloss may cause you to pause before puckering. Researchers at the University of California, Berkeley's School of Public Health tested 32...
View ArticleRobotic flies take flight
A flying robot the size of a house-fly is providing researchers with a new way to study the flight dynamics of nature’s smallest fliers. Flies are capable of extremely unique and agile flight maneuvers...
View ArticleHow bird flu binds in humans
Though scientists have known that particles from bird flu virus (H5N1) can infect humans, they haven’t understood the molecular mechanism by which this is achieved -- until now. To infect a host, a...
View ArticleInsight into virus spread
For the first time, scientists have combined genetic material from a bird influenza virus and a human influenza virus, demonstrating how the resulting strains can spread between, and impact, mammals.
View ArticleThe main source of superoxide in the sea?
A broad range of diverse bacteria produce substantial amounts of superoxide and other reactive oxygen species (ROS), which are known to influence various global processes, including Earth’s carbon and...
View ArticleChildren living near toxic waste sites experience higher blood lead levels...
May 6, 2013 /Press Release/ –– Children living near toxic waste sites in lower and middle income countries such as India, Philippines and Indonesia may experience higher blood lead levels, resulting in...
View ArticleCommon childhood respiratory virus impairs learning in rodents
Respiratory syncytial virus (RSV), a leading cause of respiratory illnesses such as bronchiolitis and pneumonia in infants, can spread from the airways to the brain and impair learning in rodents, a...
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