Other Sciences News

Physicists Create New Isotope of Mendelevium

Jun 24, 2020 by News Staff

In an experiment performed at Lawrence Berkeley National Laboratory’s 88-inch cyclotron, a team of physicists successfully created a new isotope of the...

A group of Neanderthals in a cave. Image credit: Tyler B. Tretsven.

Researchers Sequence Genome of Neanderthal Woman from Chagyrskaya Cave

Jun 18, 2020 by Enrico de Lazaro

An international team of researchers has sequenced and analyzed the genome of an 80,000-year-old Neanderthal woman from Chagyrskaya Cave in the Altai Mountains,...

$Earthquakes send sound waves through the Earth. Seismograms record the echoes as those waves travel along the core-mantle boundary, diffracting and bending around dense rock structures. Kim et al provide the first broad view of these structures, revealing them to be much more widespread than previously known. Image credit: Doyeon Kim, University of Maryland.$

Geophysicists Find Dense Rock Structures near Earth’s Core

Jun 16, 2020 by News Staff

In a new study, a team of geophysicists from the University of Maryland, Johns Hopkins University and Tel Aviv University has analyzed echoes of seismic...

High-resolution microCT image of the chimpanzee’s os cordis. Image credit: Moittié et al, doi: 10.1038/s41598-020-66345-7.

Some Chimpanzees Have Tiny Bone in Their Heart

Jun 11, 2020 by Enrico de Lazaro

A team of researchers in the UK has discovered that some individuals of the common chimpanzee (Pan troglodytes), particularly those affected by myocardial...

Illustration of one of the early settlers in the Caribbean. Image credit: Tom Björklund.

Humans Colonized Caribbean Islands in Three Waves: Study

Jun 5, 2020 by News Staff

An international team of researchers has sequenced and analyzed the genomes of 93 ancient Caribbean islanders and found evidence of at least three separate...

Heavy Water Has Sweet Taste, New Study Confirms

Jun 1, 2020 by Sergio Prostak

Highly purified heavy water has a distinctly sweeter taste than same-purity normal (light) water, according to a study conducted by researchers from the...

The occasional use of stone tools as ‘strike-a-lights’ was a technocultural feature shared among Neanderthals in France.

Study: Women with Neanderthal Progesterone Gene Have Higher Fertility

May 29, 2020 by Enrico de Lazaro

A hormone called progesterone is important for preparing the uterine lining for egg implantation and in maintaining the early stages of pregnancy. Almost...

Devonian-period seafloor. Image credit: University of Michigan Museum of Natural History.

End-Devonian Mass Extinction Caused by Erosion of Ozone Layer, New Study Finds

May 28, 2020 by News Staff

High levels of damaging ultraviolet-B (UV-B) radiation collapsed forest ecosystems and killed off many species of fish and tetrapods at the end of the...

The Chicxulub asteroid hit Earth at an angle of about 60 degrees, which is among the worst-case scenarios for the lethality of the impact by the production of climate-changing gases. Image credit: Chase Stone.

Dinosaur-Killing Chicxulub Asteroid Hit Earth at Angle of 60 Degrees

May 27, 2020 by News Staff

A 10-km asteroid crashed into Earth near the site of the small town of Chicxulub in Mexico at the end of the Cretaceous period, about 66 million years...

Posterior view of the 3D reconstructed male rat heart: (A) whole-heart view showing the context, extent, and distribution of the intrinsic cardiac neurons (ICN), located on superior and posterior surfaces of the atria; (B-F) a higher-resolution view of the atria and blood vessels that are shown in (B), with various contoured features of heart anatomy that are selectively removed to appreciate the anatomical relationship of the ICN to (C) the pulmonary artery and superior vena cava (SVC), (D) the interatrial septum, (E) the left atrium and pulmonary veins, (F) the right atrium, where clusters #1 and #2 appear to be on the surface of both atria, whereas cluster #3, which is located around the border of the superior vena cava, left atrium, and right atrium, appears on the right atrium. Scale bars - 1,000 μm (A), 500 μm (B-F). Image credit: Achanta et al, doi: 10.1016/j.isci.2020.101140.

Scientists Create 3D Map of Rat Heart’s Neurons

May 27, 2020 by News Staff

An international team of researchers has created a comprehensive anatomical 3D map and molecular profile of the rat intracardiac nervous system (ICN). Posterior...

Facial reconstruction of Australopithecus sediba. Image credit: Cicero Moraes et al.

Australopithecus sediba Used Their Hands for Both Climbing and Human-Like Manipulation

May 21, 2020 by News Staff

An international team of paleoanthropologists has found that the hand of Australopithecus sediba, a small hominin that lived about 2 million years ago...

Positive effects of aerobic exercise in Alzheimer’s disease may be mediated by redistribution of blood flow and neural activity in Alzheimer’s disease-sensitive regions of brain. Image credit: Mabel Amber.

Aerobic Exercise Improves Memory in Older Adults, New Study Finds

May 21, 2020 by News Staff

Aerobic exercise boosts blood flow into two key regions of brain associated with memory: the anterior cingulate cortex and the hippocampus, according to...

Heller et al reveal a previously unknown connection between our daily physical environments and sense of well-being. Image credit: Frank MoreLight.

Study Reveals Link between Diversity in Daily Experiences and Sense of Well-Being

May 20, 2020 by News Staff

New and diverse daily experiences are linked to enhanced happiness, according to a study published in the journal Nature Neuroscience. Heller et al reveal...

Hawaiian Volcano Puhahonu is Earth’s Biggest and Hottest Shield Volcano

May 15, 2020 by News Staff

Pūhāhonu (‘turtle rising for breath’ in Hawaiian), a 13-million-year-old volcano in the northwest Hawaiian Ridge, is twice the size of Mauna Loa...

$Yang & Song found that refracted waves (blue), rather than reflected waves (purple) change over time, providing the best evidence yet that Earth’s inner core is rotating. Image credit: Michael Vincent.$