Competition between harmless and drug-resistant bacteria
Researchers report that pheromones produced by a bacterium that is native to the gut can kill multidrug-resistant strains of the same bacterium. Multidrug-resistant Enterococcus bacteria are leading...
View ArticleSleepers among scientific articles
Scientific papers that lie dormant for years after publication and then see a spike in interest, measured by an increase in citations by other papers, may be more common than thought, a study suggests.
View ArticleTiny heart, big promise
The heart has its own dedicated blood supply, with coronary arteries that supply oxygen-rich blood to the heart and cardiac veins that remove deoxygenated blood. This system of vessels nourishes the...
View ArticleNovel optical scheme based on cryogenic radiometer for successive calibration
Researchers led by Prof. Xiaobin Zheng, from Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences designed and made use of a novel calibration optical path with the standard...
View ArticleSynthetic bacteria noninvasively detect diabetes, cancer in urine
Researchers have designed bacteria that noninvasively detect diabetes and cancer, respectively, in urine. The studies, conducted by two separate groups, lay the groundwork for using synthetic bacteria...
View ArticleSmall-spot X-ray irradiation from metal nanowire target
Researchers in Prof. Yuqiu Gu’s group, from Research center of Laser Fusion, China Academy of Engineering Physics, proposed a more efficient Kα X-ray source with metal nanowire target. The multiple...
View ArticleA good night’s sleep helps modify deeply rooted attitudes
Long-held social biases can be reduced during sleep, a new report suggests. It adds further support to recent research that has shown that memories can be selectively reactivated and strengthened...
View ArticleA clear look at an efficient energy converter
Xiaochun Qin and colleagues provide a high-resolution crystal structure of an important plant protein supercomplex, shedding new light on an extremely efficient solar energy converter. The...
View ArticleResearchers use light to beat amnesia in mice
Memories that have been destabilized and forgotten by mice can nevertheless be retrieved by activating memory engrams, or specific patterns of neurons that fire when memories are encoded, with light,...
View ArticleNorthern ice caused southern rain during last Ice Age
Armadas of icebergs that broke off the Greenland ice sheet into the northern Atlantic Ocean during the Last Glacial Period -- between about 110,000 and 12,000 years ago -- often increased methane...
View ArticleAntidepressant use in late pregnancy may be associated with small, increased...
An analysis of approximately 3.8 million pregnancies finds that use of antidepressants late in pregnancy may be associated with an increased risk of persistent pulmonary hypertension of the newborn...
View ArticleMultifaceted intervention associated with modest decrease in surgical site...
Implementation of a pre-surgical intervention that included screening for the bacteria Staphylococcus aureus, treating patients who were positive for this bacteria, and the administration of...
View ArticleControlling huanglongbing transmission
Researchers report that huanglongbing (HLB), a disease of citrus trees, can spread through a grove well before symptoms appear, and suggest improved control strategies. Current strategies to control...
View ArticleEvolution of human body composition
Human skin, fat, and muscle proportions differ significantly from those of bonobos, suggesting evolutionary factors that may have shaped the body structure of Homo sapiens, according to a study. A...
View ArticleProfitability of organic agriculture
Organically grown products can be financially competitive with conventionally grown products, according to a study. Although organic production practices enhance the sustainability of farming, the...
View ArticleChronology of modern human dispersal
Researchers report that modern humans with Upper Paleolithic (UP) technology may have appeared in the Near East prior to their appearance in Europe. The Levantine corridor hypothesis states that...
View ArticleAlso of interest from the Proceedings of the National Academy of Sciences
Using four separate methods, researchers estimate that the numbers of beetle and insect species are likely around 1.5 million and 5.5 million, respectively, and suggest that using multiple methods...
View ArticleCoupled human and natural systems explain change on the Mongolian Plateau
Using well-established metrics of social, economic, and ecosystem functions, researchers have achieved a holistic view of coupled human and natural systems on the Mongolian Plateau. This view reveals...
View ArticleTwo FDA-approved drugs may be repurposed for Ebola
Systematic screening of more than 2,500 compounds has identified two approved drugs—a calcium channel blocker and an antidepressant commonly known as Zoloft®—that can potentially be repurposed for the...
View ArticleEvidence against a global warming hiatus?
An analysis using updated global surface temperature data disputes the existence of a 21st Century global warming slowdown described in studies including the latest Intergovernmental Panel on Climate...
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