Culture
A group of researchers from the University of Helsinki used novel and powerful methods to disentangle the patterns of parallel evolution of freshwater three-spined sticklebacks at different geographic scales across their distribution range. The group concludes that the conditions under which striking genome-wide patterns of genetic parallelism can occur may in fact be far from common - perhaps even exceptional.
A metal organic framework (MOF)-based water splitting photocatalyst, developed at KAUST, has brought researchers a step closer to generating clean hydrogen fuel using sunlight.
"Using solar energy to efficiently make green fuels is the ultimate goal for many catalysis researchers," says Jorge Gascon, director of the KAUST Catalysis Center, who led the research. However, it remains challenging to find efficient, long-lived, low-cost water-splitting photocatalysts.
The lockdown measures introduced in Italy to deal with COVID-19 have produced a mobility contraction which is not homogeneously distributed across Italian municipalities and regions. An examination of the steep fall on the Italian mobility network during the pandemic reveals some counterintuitive results, calling for further analysis.
As one of the first epicenters of this disease, China has announced the most efficient prevention measures to slow down the spread of the COVID-19 lockdown by restricting the movement of populations nationwide after the Chinese New Year 2020, which caused tremendous economic losses and also a substantial reduction in emission of air pollutant from vehicles and factories. Surprisingly, despite such large decreases in primary pollution, air quality in China was not as clean as expected.
An innovative use of focused ultrasound being pioneered at the University of Virginia School of Medicine is showing promise against glioblastoma, the deadliest brain tumor, and could prove useful against other difficult-to-treat cancers.
The technique hits cancer cells with a drug that sensitizes them to sound waves, then blasts them with focused ultrasound. The sound waves create tiny bubbles inside the cancer cells, causing them to die.
By softening a cell's nucleus so that it can squeeze its way through dense connective tissues, a group of researchers believe they've demonstrated a new way to help the body efficiently repair injuries. The team of researchers from the University of Pennsylvania tested this theory by using a medication to inhibit enzymes in the nucleus of knee's meniscus cells, which allowed the cells to move through environments that were previously impenetrable. This study was published in Science Advances.
In this articale, we have described a new practical cyclocondensation synthesis for a series of [1,2,4]triazolo[4,3-c]pyrido[3,2-e] pyrimidine and pyrido[2',3':4,5] pyrimido[6,1-c][1,2,4] triazine from 2-amino-3-cyano-4.6-diarylpyridines. Also polyheterocyclic compounds containing [1,2,4]triazolo and [1,2,3,4]tetrazolo moieties were also synthesized through the reactions of 3-hydrazino-8,10-diaryl [1,2,4]triazolo[4,3-c]pyrido[3,2-e]pyrimidine with both formic acid and the formation of diazonuim salt respectively .
Humans can effortlessly recognize and react to natural sounds and are especially tuned to speech. There have been several studies aimed to localize and understand the speech-specific parts of the brain, but as the same brain areas are mostly active for all sounds, it has remained unclear whether or not the brain has unique processes for speech processing, and how it performs these processes. One of the main challenges has been to describe how the brain matches highly variable acoustic signals to linguistic representations when there is no one-to-one correspondence between the two, e.g.
Philadelphia, June 22, 2020 - Dairy producers are feeding dairy calves more milk before weaning, as research has demonstrated that greater milk consumption provides short- and long-term benefits for calves. Encouraging solid feed consumption by calves on high-milk diets, however, can be challenging. Researchers have concluded that gradual weaning solves this problem more effectively than abrupt weaning, but more research is needed to optimize the process.
As China upgrades pangolins to the highest protected status level, an alternative approach to using long standing forensic methods is helping wildlife crime investigators disrupt poachers and animal traffickers in an effort to bring them to justice.
A team of scientists and experienced investigators from the University of Portsmouth have joined the battle to stop the pangolin becoming extinct, by adapting forensic fingerprinting techniques that lift finger-marks from the scales of these endangered animals.
PORTLAND, OR - Black patients are better represented in taxpayer-funded clinical trials testing new cancer treatments compared to trials run by pharmaceutical companies - although black patients are not fully represented in cancer clinical trials, regardless of sponsor.
In a first-of-its-kind study, researchers have determined that genetics may play a role in how wounds heal. Caleb Phillips, an assistant professor at Texas Tech University and director of the Phillips Laboratory in the Department of Biological Sciences, and doctoral student Craig Tipton led the study, "Patient genetics is linked to chronic wound microbiome composition and healing," published Thursday (June 18) in the open-access, peer-reviewed medical journal PLOS Pathogens.
Sturgeon, a long-lived, bottom-dwelling fish, are often described as "living fossils," owing to the fact that their form has remained relatively constant, despite hundreds of millions of years of evolution.
In an article published in Nature Ecology & Evolution today (22 June), the leaders of a new global initiative explain how research during this devastating health crisis can inspire innovative strategies for sharing space on this increasingly crowded planet, with benefits for both wildlife and humans.
If you want to understand the underlying mechanisms of cellular motility and division, then the centriole is the organelle of interest. Each cell has a pair of centrioles which help to segregate chromosomes during cell division. These special organelles are multi-molecular machines composed of hundreds of proteins and have a hidden code of post-translational modifications (PTMs), that contribute to their rigidity or flexibility, which in turn may help explain how centrioles function.