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Antibiotics often sold without prescription in retail pharmacies in China

It is easy to obtain antibiotics without prescription in retail pharmacies in China, even though selling antibiotics without a prescription conflicts with regulations, a study published in the open access journal Antimicrobial Resistance & Infection Control suggests. More work needs to be done to ensure that antibiotics are obtainable by subscription only, according to researchers at Zhejiang University School of Medicine, Hangzhou, China.

Animals reduce the symmetry of their markings to improve camouflage

Some forms of camouflage have evolved in animals to exploit a loophole in the way predators perceive their symmetrical markings. The University of Bristol findings, published in Proceedings of the Royal Society B today, describe how animals have evolved to mitigate this defensive disadvantage in their colouration.

Having less sex linked to earlier menopause

Women who engage in sexual activity weekly or monthly have a lower risk of entering menopause early relative to those who report having some form of sex less than monthly, according to a new UCL study.

What keeps couples together

In mammals, pair bonds are very rare, one of the few exceptions being the red titi monkeys of South America. These relatively small tree dwellers live in pairs or small family groups and are characterized by the fact that the males take intensive care of their offspring. A team of researchers from the German Primate Center—Leibniz Institute for Primate Research has now investigated how pair relationships work in titi monkeys. Their results support the so-called "male-services hypothesis": Males provide a useful service by taking more care of the offspring and defending the territory against intruders, while the females are more involved in relationship management and, for example, seek the proximity of their partner more often. The findings are published in Royal Society Open Science.

Analyzing DNA in soil could be an effective way of tracking animals

It's hard to protect something you can't find. A new Stanford study reveals sampling soil for animals' left-behind DNA can provide valuable information for conservation efforts—with significantly less cost and time—than currently used methods, such as camera traps.

HIV 'hotspots' not necessarily major drivers of new infections

Areas of high HIV prevalence, known as 'hotspots', do not necessarily fuel the epidemic in the wider population, say researchers.

NSA finds major security flaw in Windows 10, free fix issued

The National Security Agency has discovered a major security flaw in Microsoft's Windows 10 operating system that could allow hackers to intercept seemingly secure communications.

Brazil to open new Antarctic research base

Brazil will open a new research base in Antarctica this week, officials said Tuesday, eight years after a fire destroyed its original scientific outpost.

Boeing reports net drop in 2019 orders amid MAX crisis

Boeing reported Tuesday a net drop in commercial plane orders in 2019 and much lower deliveries as its protracted 737 MAX crisis weighed heavily on operations.

German carmakers beat global sales slump

German car giants Volkswagen, BMW and Daimler have posted strong sales growth in the face of a contracting global market in 2019, shifting massive numbers of SUVs ahead of a pivotal year for electric mobility.

Google says it will phase out web-tracking 'cookies'

Google on Tuesday said is making progress in its quest to vanquish third-party "cookies" on its popular browser used to track people's online activities, a focus of many privacy activists.

UK reaches deal to keep Flybe flying

The UK government announced a rescue deal Tuesday for the troubled no-frills airline Flybe aimed at keeping Europe's largest regional carrier flying and preserving around 2,000 jobs.

Encryption battle reignited as US govt at loggerheads with Apple

Apple and the US government are at loggerheads for the second time in four years over unlocking iPhones connected to a mass shooting, reviving debate over law enforcement access to encrypted devices.

Racial disparities in heart failure explained

Researchers at UT Southwestern have uncovered evidence that the higher prevalence of "malignant" enlargement of the heart among blacks contributes to the higher incidence of heart failure in this population. The new study is published online in the journal Circulation.

From smoke going round the world to aerosol levels, NASA observes Australia's bushfires

NASA scientists using data from its NOAA/NASA Suomi NPP satellite, has traced the movement of the smoke coming off the Australian fires across the globe showing that it has circumnavigated the Earth. In an image created from data gathered by the Ozone Mapping and Profiler Suite (OMPS) Nadir Mapper on Suomi NPP, a black circle shows the smoke which had been traced from its origins coming back to the eastern region of Australia after having traveled around the world. Suomi NPP carries carry five science instruments and is the first satellite mission to address the challenge of acquiring a wide range of land, ocean, and atmospheric measurements for Earth system science while simultaneously preparing to address operational requirements for weather forecasting. Suomi NPP also represents the gateway to the creation of a U.S. climate monitoring system, collecting both climate and operational weather data and continuing key data records that are critical for global change science.

Street network patterns reveal worrying worldwide trend towards urban sprawl

New research from McGill University and the University of California, Santa Cruz has found that the local streets of the world's cities are becoming less connected, a global trend that is driving urban sprawl and discouraging the use of public transportation.

Study weighs deep-sea mining's impact on microbes

The essential roles that microbes play in deep-sea ecosystems are at risk from the potential environmental impacts of mining, a new paper in Limnology and Oceanography reports. The study reviews what is known about microbes in these environments and assesses how mining could impact their important environmental roles.

Brain model offers new insights into damage caused by stroke and other injuries

He calls it his "chocolate and peanut butter moment."

More federal funding needed to increase Americans' active transportation habits

The federal government has allocated only about 2 percent of its transportation funds to encourage walking and cycling, not nearly enough to make a significant difference, according to Ralph Buehler, associate professor and chair of the urban affairs and planning program in the Virginia Tech School of Public and International Affairs.

Hyperactive immune system gene causes schizophrenia-like changes in mice

Excessive activity of an immune system gene previously linked to schizophrenia reproduces neural and behavioral aspects of the disease in mice, according to a new study publishing on January 14 in the open-access journal PLOS Biology by Ashley Comer and Alberto Cruz-Martín of Boston University and colleagues. The finding provides mechanistic support for the importance of the gene in the development of schizophrenia, and may offer a new avenue for therapy development.