Other Sciences News

This year’s ozone hole over Antarctica is one of the largest in recent years. Image credit: ESA.

Ozone Hole over Antarctica is One of Largest and Deepest in Recent Years

Oct 20, 2020 by News Staff

The Antarctica’s ozone hole has now reached its maximum size, according to an analysis of data collected by ESA’s Copernicus Sentinel-5P satellite. This...

A Homo heidelbergensis, a Neanderthal and a Cro-Magnon. Image credit: SINC / José Antonio Peñas.

Climate Change Drove Early Human Species Extinct, Says New Study

Oct 19, 2020 by News Staff

At least six different species of the genus Homo — H. habilis, H. ergaster, H. erectus, H. heidelbergensis, H. neanderthalensis, and H. sapiens —...

Guarana et al. investigated the effects of blue-light filtration on broad attitudinal and behavioral outcomes, i.e. work engagement, organizational citizenship behavior, and counterproductive work behavior. Image credit: Alexandr Borecký.

Study: Blue-Light Filtering Glasses Improve Sleep Quantity and Quality, Workday Productivity

Oct 15, 2020 by News Staff

Wearing blue-light filtering glasses before sleeping creates a form of physiologic darkness, thus improving both sleep quantity and quality, and is related...

Lucas et al. find that the prevalence of the persistent median artery in postnatal life approximately tripled over the last 125 years. Image credit: C.M. Da Silva.

Humans are Evolving Extra Artery in Forearm: Median Artery

Oct 12, 2020 by News Staff

The median artery of the human forearm is an example of microevolutionary changes in the internal anatomy of the human body, according to new research...

Reconstruction of a Neanderthal. Image credit: Neanderthal Museum.

Neanderthals’ Deep and Short Ribcage was Already Present at Birth

Oct 8, 2020 by Enrico de Lazaro

An international team of researchers has virtually reconstructed the ribcages of four Neanderthal individuals from birth to around 3 years old and found...

MPS is a novel neuroprotective molecule that is more than two orders of magnitude more potent than the related molecule, ethosuximide. The discovery may enable novel treatments for human neurodegenerative diseases to be developed in the future. Image credit: National Institute on Aging / National Institutes of Health.

Scientists Confirm Long-Suspected Link between Obstructive Sleep Apnea and Alzheimer’s Disease

Oct 7, 2020 by News Staff

While the cause of Alzheimer’s disease remains a mystery, amyloid plaques that are toxic to brain cells are known indicators of the disease. A team of...

Neanderthal. Image credit: Neanderthal Museum.

Scientists Sequence Y Chromosome DNA of Denisovans and Neanderthals

Sep 25, 2020 by News Staff

The genomes of our closest relatives, Neanderthals and Denisovans, have been sequenced and compared with that of modern humans. However, most archaic individuals...

The study sheds new light on the link between sleep deprivation and obesity. Image credit: Sweet Briar College.

New Research Illuminates Dominant Functions of Sleep and How They Change Through Our Lives

Sep 22, 2020 by News Staff

Before the age of 2 or 3 years, the human brain grows very rapidly and, during REM sleep, is busy building and strengthening synapses. After 2 or 3 years,...

Human track and its digital elevation model. Image credit: Klint Janulis, University of Oxford.

120,000-Year-Old Human Footprints Found in Saudi Arabia

Sep 21, 2020 by News Staff

An international team of archaeologists and paleoanthropologists has found ancient human and animal footprints on the surface of an ancient lakebed in...

Bathymetric map of the Fram Strait gateway and downstream region; red circles indicate location of marine sediment cores. Inset: Danish historical ice chart from the early 20th century showing the extension of the Arctic Ocean-origin sea ice observed along Southwest Greenland. Image credit: Miles et al, doi: 10.1126/sciadv.aba4320.

Little Ice Age Triggered by Arctic Sea Ice

Sep 18, 2020 by News Staff

The Little Ice Age, a period of global cooling that lasted from the early 14th century to the mid-19th century, was triggered by an exceptionally large...

Kringle et al captured reversible changes in the structure of supercooled water using pulsed laser heating and infrared spectroscopy. Image credit: Timothy Holland, Pacific Northwest National Laboratory.

Supercooled Water is Two Liquids in One, Study Shows

Sep 18, 2020 by News Staff

The first-ever measurements of liquid water at temperatures between 135 K (minus 138.15 degrees Celsius, or minus 216.7 degrees Fahrenheit) and 235 K (minus...

Copper represents an effective catalyst in reducing carbon dioxide to hydrocarbons or oxygenates, but it is often plagued by a low product selectivity and limited long-term stability. Choi et al report that copper nanowires with rich surface steps exhibit a remarkably high Faradaic efficiency for ethylene that can be maintained for over 200 hours. Image credit: Choi et al, doi: 10.1038/s41929-020-00504-x.

Scientists Find Efficient Way to Convert Carbon Dioxide into Ethylene

Sep 17, 2020 by News Staff

A team of U.S. researchers has developed copper nanowires with rich surface steps to catalyze a chemical reaction that reduces carbon dioxide (CO2) emissions...

The proximity of hot springs to early settlements have led Sistiaga et al to wonder if early humans used hot springs as a cooking resource long before fire. Image credit: Tom Björklund.

Archaic Humans May Have Boiled Their Food in Hot Springs

Sep 17, 2020 by News Staff

An international team of researchers has found evidence that hot springs existed in Olduvai Gorge — a paleoanthropological site in the Great Rift...

Piotrowska et al developed tripeptide crystals which feature aqueous pores that expand and contract in response to humidity changes and use evaporation to create an effective mechanical actuator. Image credit: Tony Wang.

Scientists Create Shape-Changing Peptide Crystals

Sep 15, 2020 by News Staff

A team of researchers from the United States and the United Kingdom has created nanoporous tripeptide crystals that directly convert evaporation energy...

Crystal structure and magnetism in rare-earth langasite: (a) the distorted Kagome lattice of the rare-earth ions in R3Ga5SiO14; about 1.5% of the rare-earth sites (orange) are occupied by the holmium ions; the unit cell is shown by thin solid lines; (b) experimental and theoretical magnetization curves of HoxLa3−xGa5SiO14 (x = 0.043) in external magnetic fields parallel to three crystallographic axes and at T = 5 K. Symbols - experiment, solid lines - model accounting for a ground Ho3+ quasidoublet and a Van-Vleck contribution of excited crystal-field states. The inset shows the local magnetic moments of Ho-ions in the saturation regime. Image credit: Weymann et al, doi: 10.1038/s41535-020-00263-9.

New Type of Magnetoelectric Effect Discovered

Sep 15, 2020 by News Staff

Even small changes in the direction of the magnetic field can switch the electrical properties of a paramagnetic rare-earth material — the holmium-doped...

$Left: Linear A fraction signs and their standard transcription. Right: Linear A clay tablet HT 104. Image credit: Heraklion Archaeological Museum and the Greek Ministry of Culture and Sport, Archaeological Resources Fund / Corazza et al, doi: 10.1016/j.jas.2020.105214.$

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