Earth

West Nile virus spreads most efficiently in the US at temperatures between 24-25 degrees Celsius (75.2-77 degrees Fahrenheit), a new study published today in eLife shows.

The results suggest that climate change could lead to the increased spread of West Nile virus in some places, while potentially causing a decrease in others, and provide insight on where and when these changes might occur.

Darmstadt, 15. September 2020. Researchers from the Technical University of Darmstadt and the University of Würzburg show that popular mobile messengers expose personal data via discovery services that allow users to find contacts based on phone numbers from their address book.

LOS ANGELES - Patients treated for bladder cancer with a surgery known as radical cystectomy have worse outcomes if they are smokers, according to a systematic review and meta-analysis by Keck Medicine of USC. The study appeared in The Journal of Urology.

Due to their small size, nanoparticles find varied applications in fields ranging from medicine to electronics. Their small size allows them a high reactivity and semiconducting property not found in the bulk states. Sub-nanoparticles (SNPs) have an extremely small diameter of around 1 nm, making them even smaller than nanoparticles. Almost all atoms of SNPs are available and exposed for reactions, and therefore, SNPs are expected to have extraordinary functions beyond the properties of nanoparticles, particularly as catalysts for industrial reactions.

NASA's Aqua satellite analyzed Hurricane Paulette's water vapor content as it continued to move away from Bermuda and found structural changes, the strongest side, and dry air moving in.

Water Vapor Imagery's Indications

NASA-NOAA's Suomi NPP satellite provided an infrared look at Tropical Storm Karina in the Eastern Pacific Ocean that gave forecasters a nighttime view of the storm. It revealed a slightly more organized tropical storm.

NASA's Night-Time View  

As anxiety and depression rise in the country, primary care clinics, especially in rural areas, are facing increased patient needs. One way to address this is to bolster healthcare providers' ability to diagnose and treat patients with common mental health disorders.

Researchers at UW Medicine found that primary-care physicians and rural clinic staff felt more skilled in delivering mental health care if they used a model known as collaborative care.

A research group consisting of Associate Professor FUKAYAMA Hiroshi (Kobe University, Graduate School of Agricultural Science) and Professor MATSUMURA Hiroyoshi (Ritsumeikan University) et al. have succeeded in greatly increasing the catalytic activity of Rubisco (*1), the enzyme which fixes carbon from CO2 in plant photosynthesis. The research team also hypothesized the mechanism which determines the catalytic activity of Rubisco, based on structural analysis of the proteins.

The devastating effects of human activity on wildlife in the American tropics over the last 500 years are revealed in a new study published today.

More than half of the species in local 'assemblages' - sets of co-existing species - of medium and large mammals living in the Neotropics of Meso and South America have died out since the region was first colonised by Europeans in the 1500s.

Myotonic dystrophy type I is the most common type of adult-onset muscular dystrophy. People with the condition inherit repeated DNA segments that lead to the toxic buildup of repetitive RNA, the messenger that carries a gene's recipe to the cell's protein-making machinery. As a result, people born with myotonic dystrophy experience progressive muscle wasting and weakness and a wide variety of other debilitating symptoms.

A research collaboration between Monash University and Lava Therapeutics details a novel immune-oncology approach for the potential treatment of cancer. Instrumental to the study was co-first author Dr Roeland Lameris from Amsterdam UMC and colleagues from the University of Melbourne.

WESTMINSTER, Colorado - September 14, 2020 - Synthetic auxin products have given growers an important option for managing weed populations resistant to glyphosate and other herbicides. But according to an article featured in the journal Weed Technology, there is one important downside to dicamba, 2,4-D and other synthetic auxins. They often move off-target and can cause severe injury to sensitive plants growing nearby.

Humankind is reliant on the ammonium in synthetic fertiliser for food. However, producing ammonia from nitrogen is extremely energy-intensive and requires the use of transition metals.

Researchers from Julius-Maximilians-Universität (JMU) Würzburg in Bavaria, Germany, have now achieved the conversion of nitrogen to ammonium at room temperature and low pressure without the need for transition metals. This was reported by a research group led by JMU scientist Holger Braunschweig in the journal Nature Chemistry.

A new toolbox for binding nitrogen

Scientists have discovered an elegant way of manipulating light using a "synthetic" Lorentz force -- which in nature is responsible for many fascinating phenomena including the Aurora Borealis.

A team of theoretical physicists from the University of Exeter has pioneered a new technique to create tuneable artificial magnetic fields, which enable photons to mimic the dynamics of charged particles in real magnetic fields.

When NASA's Aqua satellite passed over the Eastern Pacific Ocean, it gathered water vapor data on Tropical Storm Karina. The data showed that the storm was being affected by wind shear from the northeast, pushing the bulk of clouds to the southwest.

Karina formed late on Saturday, Sept. 12 as Tropical Depression 16E (TD16E). TD16E developed about 470 miles (755 km) south-southwest of the southern tip of Baja California, Mexico. Six hours later at 5 a.m. EDT on Sept. 13, the depression organized and strengthened into a tropical storm and was renamed Karina.