Earth
Russian scientists from Far Eastern Federal University (FEFU), G. B. Elyakov Pacific Institute of Bioorganic Chemistry (PIBOC FEB RAS), and A.V. Zhirmunsky National Scientific Center for Marine Biology (NSCMB FEB RAS) have discovered four new steroid substances which target cells of human breast cancer, and colorectal carcinoma. They were extracted from the starfish Ceramaster patagonicus, a Kuril basin seabed dweller. A related article appears in Marine Drugs.
In biology, phylogenetic trees represent the evolutionary history and diversification of species - the "family tree" of Life. Phylogenetic trees not only describe the evolution of a group of organisms but can also be constructed from the organisms within a particular environment or ecosystem, such as the human microbiome. In this way, they can describe how this ecosystem evolved and what its functional capabilities might be.
Irvine, Calif., June. 25, 2020 -- Researchers from the University of California, Irvine, in collaboration with their colleagues from Beijing, China, have gained new insights into the development of poorly understood malignant skin cancers collectively known as Paget's disease. The team identified new biomarker genes that highly correlate with Paget's disease.
The fact that people are living longer lives represents one of the crowning achievements of the last century, but also requires careful planning on the part of governments. A new IIASA study investigated the prevalence of activity limitations among older adults in 23 low- and middle-income countries, to help policymakers prepare for the challenges associated with the world's aging population.
PHILADELPHIA - Office visits for ongoing prescribing of skeletal muscle relaxant drugs tripled from 2005 to 2016, according to a new study from researchers in the Perelman School of Medicine at the University of Pennsylvania.
Ancestors of a distinctive pollinating bee found across Australia probably originated in tropical Asian countries, islands in the south-west Pacific or greater Oceania region, ecology researchers claim.
Describing the likely dispersal corridor for the ancestral lineage of the bee genus Homalictus will help understand the social evolution of the vibrant halictine bees, South Australian, Czech and PNG researchers say in a new paper.
Climate change leads to longer growing seasons in the Arctic. A new study, which has just been published in Proceedings of the Royal Society B, show that predators like wolf spiders respond to the changing conditions and have been able to produce two clutches of offspring during the short Arctic summer.
Arctic spiders are at the top of the food chain among invertebrates and are numerous on the Arctic tundra. They typically take several years to become adults, and only produce offspring .
Led by the Ikerbasque professor Luis Liz-Marzán, researchers at the Centre for Cooperative Research in Biomaterials CIC biomaGUNE have developed a mechanism by which gold atoms are deposited by means of chemical reduction onto previously formed gold nanorods to produce a quasi-helicoidal structure (the particles acquire chirality). This geometry enables these "nanoscrews" to interact with circularly polarized light much more efficiently than what is achieved with any other known object. These properties could lead to the detecting of biomolecules in a very selective and very sensitive way.
Scientists from the Center for Photonics and 2D Materials of the Moscow Institute of Physics and Technology (MIPT), the University of Oviedo, Donostia International Physics Center, and CIC nanoGUNE have proposed a new way to study the properties of individual organic molecules and nanolayers of molecules. The approach, described in Nanophotonics, relies on V-shaped graphene-metal film structures.
As a founding member, the Institute for Quality and Efficiency in Health Care (IQWiG) has been involved in EUnetHTA, a European network for Health Technology Assessment (HTA), since 2006. The European Union supports the network. Following the outbreak of the corona pandemic, the EU Directorate of Health called on the EUnetHTA partners to make a scientific commitment to combating the pandemic. Against this background, IQWiG has now supported the Health Agency of the Emilia Romagna region in Bologna in an initial assessment of coronavirus diagnostics.
University of Connecticut researcher Dr. George Wu recently published a paper in the Journal of Gastroenterology and Hepatology outlining his successful experiment delivering mitochondria to liver cells.
This groundbreaking experiment marks the first time researchers have ever successfully introduced mitochondria into specific cells in living animals.
A team of international researchers has learned that dose escalation of hydroxyurea treatment for children in Uganda with sickle cell anemia is more effective and has similar side effects than a lower fixed dose of the same drug.
The study, known as NOHARM MTD (Novel use Of Hydroxyurea in an African Region with Malaria - Maximum Tolerated Dose), focused on children in Uganda, but the results could impact use of hydroxyurea worldwide, including the United States and Europe. The findings are being published in the June 25 issue of the New England Journal of Medicine.
A group of scientists from Skoltech and Lomonosov Moscow State University (MSU) showed that nitrogen is not the only element that can help enhance the specific capacitance of supercapacitors.
The Kantor Center for the Study of Contemporary European Jewry at Tel Aviv University, published a special report, a summary of worldwide anti-Semitic phenomena associated with the COVID-19 pandemic. The report relies on hundreds of accounts from different locations around the globe from March-June.
The new wave of anti-Semitism includes a range of libels that have one common element: The Jews, the Zionists and/or the State of Israel are to blame for the pandemic and/or stand to gain from it.
Syracuse, N.Y. - A new study published recently in ScienceDirect by researchers from Syracuse University and SUNY Upstate Medical University shows that people with intellectual and developmental disabilities (IDD) living in residential group homes are more likely to be diagnosed with COVID-19 and die from the virus than those without IDD.
According to the researchers, the disparity is likely related to a higher prevalence of comorbid diseases among those with IDD, and/or a higher percentage of people with IDD living in congregate residential settings.