The theory applies to any sufficiently complex quantum system and may give insights into building better quantum computers. Nothing is ever completely still on the molecular level, especially when quantum physics plays a role. A water droplet gleaming on a leaf may look motionless, but inside, over a sextillion molecules are vibrating nonstop. When Wolynes and Logan first posed the question of predicting the regularity or randomness of quantum motion, they tested their math against observations of vibrational motions in individual molecules. "You only have to know two things about a molecule to be able to analyze its quantum motion patterns," Wolynes said.
The quail could be the unknown reservoir of the Toscana virus (TOSV) and the Sandfly Fever Sicilian virus (SFSV), mosquito-borne pathogens that can infect domestic animals and also cause disease in humans. This is the first time that researchers find neutralising antibodies to TOSV and SFSV in wild birds. "To date, the reservoir for these two viruses was unknown, although they have been sought for years. In fact, part of the encephalitis that occurs in summer is caused by TOSV," Serra-Cobo notes. Viruses in migratory birdsThe results of the new study suggest that birds could be the reservoir or amplifying agents of these viruses.1 month ago ScienceDaily
This migration mode is one of the ways cancer cells navigate tissue during metastasis. Cell migration is complex: Cells make use of multiple modes of migration, both individually and in colonies. Mesenchymal migration tends to be the initial mode of migration through tissue and into vessels, but cells often pivot to amoeboid migration. Chemotherapy works well against cancer cells in mesenchymal migration, Kaplan said, but not as well when the cells switch to amoeboid migration. Each effort to more closely model cell migration brings the team closer to understanding how cancer cells invade the body.2 months ago ScienceDaily
Originally, this new species was tentatively treated as a color variant of M. humile, known as M. humile f. roseum. The flowering season is different too; M. humile flowers bloom approximately 40 days earlier than M. kirishimense. There are several other possible reasons why M. kirishimense and M. humile may have evolved into separate species. The newly recognized species, M. kirishimense, is rare and presumably endangered. The paper was published online in Journal of Plant Research on November 30, 2022.2 months ago ScienceDaily
Organic photovoltaics (OPVs) are a promising, economical, next-generation solar cell technology for scalable clean energy and wearable electronics. Recently, researchers from City University of Hong Kong (CityU) overcame this obstacle by inventing a novel device-engineering strategy to successfully suppress the energy conversion loss, resulting in record-breaking efficiency. The best-performing OPVs developed by the CityU team have achieved PCE of over 19%, and the team expects to exceed 20% very soon. Their findings were published in the scientific journal Nature Energy, under the title "Suppressed Recombination Loss in Organic Photovoltaics Adopting a Planar-mixed Heterojunction Architecture." Professor Jen and Dr Lin, at CityU, and Professor Zhang Chunfeng, from Nanjing University, are the corresponding authors of the paper.3 months ago ScienceDaily
The supermassive black hole, labeled Leo I*, was first proposed by an independent team of astronomers in late 2021. The team noticed stars picking up speed as they approached the center of the galaxy -- evidence for a black hole -- but directly imaging emission from the black hole was not possible. But if a black hole is not accreting mass, instead, it emits no light and becomes impossible to find with our telescopes." This fact challenges everything we know about how galaxies and their central supermassive black holes co-evolve. advertisementDecades of studies show that most massive galaxies host a supermassive black hole at their center, and the mass of the black hole is a tenth of a percent of the total mass of the spheroid of stars surrounding it.3 months ago ScienceDaily
When fighting the spread of misinformation, social media platforms typically place most users in the passenger seat. She and her collaborators conducted a study in which they put that power into the hands of social media users instead. They first surveyed people to learn how they avoid or filter misinformation on social media. This work shows that a decentralized approach to moderation can lead to higher content reliability on social media, says Jahanbakhsh. However, current methods social media platforms use to mark or remove misinforming content have downsides.4 months ago ScienceDaily
Scientists from Oxford University and the University of Birmingham have made the first bone marrow 'organoids' that capture the key features of human bone marrow. This life-like architecture enabled the team to study how the cells in the bone marrow interact to support normal blood cell production, and how this is disturbed in bone marrow fibrosis (myelofibrosis), where scar tissue builds up in the bone marrow, causing bone marrow failure. Bone marrow fibrosis can develop in patients with certain types of blood cancers and remains incurable. Dr Khan also added, "This is a huge step forward, enabling insights into the growth patterns of cancer cells and potentially a more personalised approach to treatment. Dr Psaila added "We hope that this new technique will help accelerate the discovery and testing of new blood cancer treatments, getting improved drugs for our patients to clinical trials faster."4 months ago ScienceDaily