Do Charles Darwin’s ideas on sexual selection hold up today? The biologist was very much of his time, which meant it may have shaped his understanding of evolutionary biology.
An international team of astronomers reports the discovery of a rare double neutron star millisecond pulsar. The newfound binary pulsar, designated PSR J1325−6253, consists of two neutron stars orbiting one another every 1.8 days. The finding is detailed in a paper published April 14 on arXiv.org.
The most rapidly rotating pulsars, those with rotation periods below 30 milliseconds, are known as millisecond pulsars (MSPs). It is assumed that they are formed in binary systems when the initially more massive component turns into a neutron star that is then spun-up due to accretion of matter from the secondary star.
Some pulsars consist of two neutron stars (dubbed double neutron star systems—DNS). They are one of the most important classes of objects used to test and understand numerous astrophysical and fundamental physics phenomena, including general relativity in the strong-field regime.
China plans to develop a system for monitoring asteroids that pose a threat to earth, highlighting the nation’s growing ambitions for its space program.
The country will also explore ways for taking out asteroids that endanger the planet, Wu Yanhua, deputy director of the China National Space Administration, said in a TV interview, according to the official Xinhua News Agency.
Summary: Seizures originate from an excess of excitatory over inhibitory neural activity in confined regions of the brain, and spread only when they overcome strong inhibitory activity in surrounding regions.
Source: Weill Cornell University.
New evidence from a zebrafish model of epilepsy may help resolve a debate into how seizures originate, according to Weill Cornell Medicine and NewYork-Presbyterian investigators. The findings may also be useful in the discovery and development of future epilepsy drugs.
Analyzing sodium levels in breast cancer tumors can give an accurate indication of how aggressive a cancer is and whether chemotherapy treatments are taking effect, new research has shown.
In a study, by the universities of York and Cambridge and funded by charities Cancer Research UK and Breast Cancer Now, researchers developed a technique using sodium magnetic resonance imaging (MRI) to detect salt levels in breast cancer tumors in mice.
Using this technique, the researchers looked at breast cancer tumors and discovered that salt (sodium) was being accumulated inside cancer cells and that more active tumors accumulate more sodium.
a rapidly-installed, renewable technology it says could help wean the country off fossil fuels https://reut.rs/3JtuG6A
Explaining one of astrophysics’ most puzzling particles.
The enigmatic saga of one of astrophysics’ most wanted particles.
