Earth

Albeit very small, with a carapace width of only 3 cm, the Atlantic mangrove fiddler crab Leptuca thayeri can be a great help to scientists seeking to understand more about the effects of global climate change.

An interdisciplinary group of researchers from across the globe has comprehensively examined the sources and health effects of air pollution -- not just on a global scale, but also individually for more than 200 countries.

They found that worldwide, more than one million deaths were attributable to the burning of fossil fuels in 2017. More than half of those deaths were attributable to coal.

Findings and access to their data, which have been made public, were published today in the journal Nature Communications.

WASHINGTON -- Researchers have developed a way to dynamically switch the surface of liquid
metal between reflective and scattering states. This technology could one day be used to create electrically controllable mirrors or illumination devices.

Methane is a strong greenhouse gas that plays a key role in Earth's climate. Anytime we use natural gas, whether we light up our kitchen stove or barbeque, we are using methane.

June 14, 2021 - Last fall, the Mullen fire west of Laramie raged for the better part of two months, burning more than 176,000 acres and 70 structures in Wyoming's Carbon and Albany counties, and in Jackson County, Colo.

Unfortunately, this scenario was typical during the intense 2020 fire season in the Rocky Mountain region, an area of Colorado and southern Wyoming where high-elevation forests are burning more than at any point in the past 2,000 years, according to a study in which a University of Wyoming faculty member was instrumental.

Analyzing how people move about in their daily lives has long been important to urban planners, traffic engineers, and others developing new infrastructure projects.

But amid the social restrictions and quarantine policies imposed during the global spread of COVID-19--which is directly linked to the movement of people--human mobility patterns changed dramatically.

The build-up of calcium in a major blood vessel is linked with a 39 per cent higher risk of serious falls in older women, new Edith Cowan University (ECU) research has found.

This calcium build-up, known as abdominal aortic calcification (AAC), is a hardening of the abdomen's largest artery, which can be identified early on a commonly used bone density machine scan.

The study's findings could help health professionals to identify people at risk of serious falls early to prevent future falls and their potentially life changing consequences.

Foiling future falls

Most of Asia, Europe, North America and South America have never experienced heatwave conditions that would prohibit electric fans from being a safe, effective and clean alternative to air conditioning, according to a new study.

The biophysical modelling study, published in The Lancet Planetary Health, challenges outdated public health guidance that discourages fan use in temperatures higher than 35 degrees Celsius / 95 degrees Fahrenheit.

The internet era that we live in depends completely on the transfer of vast information over optical fibers. Optical fibers are literally everywhere. In fact, the overall length of optical fibers installed on our planet is sufficient to reach planet Uranus and back. However, the transfer of information from point A to point B is not enough. The information that we send and receive must also be processed. Light waves take up an increasing role in addressing that task as well.

PHILADELPHIA-- The prevalence of genetic mutations associated with breast cancer in Black and white women is the same, according to a new JAMA Oncology study of nearly 30,000 patients led by researchers in the Basser Center for BRCA at the Abramson Cancer Center. About five percent of both Black and white women have a genetic mutation that increases their risk of breast cancer.

The Multivariable Integrated Evaluation (MVIE) method can help meteorologists to quantitatively evaluate the overall performance of a climate model in simulating multiple variables like air temperature, precipitation, and vector wind, against observed ones.

Recently, researchers from Nanjing University and the Institute of Atmospheric Physics (IAP) of the Chinese Academy of Sciences developed a simple-to-use Multivariable Integrated Evaluation Tool (MVIETool) coded with Python/NCL to facilitate climate model evaluation and models inter-comparison, improving the MVIE method.

The fungus Fusarium verticillioides is one of the causes of red rot, the most serious sugarcane disease. Losses average around USD 1 billion per harvest in Brazil alone.

The traditional approach to the etiology of this disease is that it is triggered by Diatraea saccharalis, a moth usually referred to as the sugarcane borer. In the caterpillar stage, this insect bores into the stem of the plant, which is later infected opportunistically by the fungus.

Reston, VA (Embargoed until 5:00 p.m. EDT, Sunday, June 13, 2021) - A new imaging technique has the potential to detect neurological disorders--such as Alzheimer's disease--at their earliest stages, enabling physicians to diagnose and treat patients more quickly. Termed super-resolution, the imaging methodology combines position emission tomography (PET) with an external motion tracking device to create highly detailed images of the brain. This research was presented at the Society of Nuclear Medicine and Molecular Imaging's 2021 Virtual Annual Meeting.

For decades, the ice shelf helping to hold back one of the fastest-moving glaciers in Antarctica has gradually thinned. Analysis of satellite images reveals a more dramatic process in recent years: From 2017 to 2020, large icebergs at the ice shelf's edge broke off, and the glacier sped up.

What The Study Did: This study of patients hospitalized with COVID-19 examines the association of anticoagulation treatment with mortality rates.

Authors: Valerie M. Vaughn, M.D., M.Sc., of the University of Utah in Salt Lake City, is the corresponding author.

To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/

(doi:10.1001/jamanetworkopen.2021.11788)