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The Chengjiang biota in the Yunnan Province of China contains one of the most species-rich and well-preserved fossiliferous deposits for the early Cambrian (ca. 518 million years old), including numerous arthropod species. However, several Chengjiang arthropods have an unfamiliar morphology, are extremely rare, or are incompletely preserved, which often leads to many of these species being problematic, poorly known, or often both, thus hindering their contribution towards reconstructing the evolution of this major animal group.
Maunakea, Hawai'i - Astronomers have discovered the second-most distant quasar ever found using three Maunakea Observatories in Hawai'i: W. M. Keck Observatory, the international Gemini Observatory, a Program of NSF's NOIRLab, and the University of Hawai'i-owned United Kingdom Infrared Telescope (UKIRT). It is the first quasar to receive an indigenous Hawaiian name, Pōniuā`ena, which means "unseen spinning source of creation, surrounded with brilliance" in the Hawaiian language.
The young star HBC 672 is known by its nickname of Bat Shadow because of its wing-like shadow feature. The NASA/ESA Hubble Space Telescope has now observed a curious "flapping" motion in the shadow of the star's disc for the first time. The star resides in a stellar nursery called the Serpens Nebula, about 1300 light-years away.
A new study shows that the central bank tool known as quantitative easing helped consumers substantially during the last big economic downturn -- a finding with clear relevance for today's pandemic-hit economy.
More specifically, the study finds that one particular form of quantitative easing -- in which the U.S. Federal Reserve purchased massive amounts of mortgage-backed securities -- drove down mortgage interest rates, allowed consumers to refinance their house loans and spend more on everyday items, and in turn bolstered the economy.
MINNEAPOLIS, MN- June 25, 2020 – Historically, half or more of people with type 1 diabetes develop kidney disease, which frequently progresses to kidney failure, requiring dialysis treatment or kidney transplantation for survival, according to a study in Diabetes Care. Development and progression of kidney disease in type 1 diabetes is associated with higher levels of a chemical in the blood called uric acid.
Could the cure for melanoma - the most dangerous type of skin cancer - be a compound derived from a marine invertebrate that lives at the bottom of the ocean? A group of scientists led by Alison Murray, Ph.D. of the Desert Research Institute (DRI) in Reno think so, and are looking to the microbiome of an Antarctic ascidian called Synoicum adareanum to better understand the possibilities for development of a melanoma-specific drug.
PROVIDENCE, R.I. [Brown University] -- While the brain is composed of two types of cells, glia tend to receive far less attention for their importance in brain function and disease than the more celebrated neurons. But scientists have known for more than a century that special types of glial cells are integral components of neuromuscular junctions or synapses -- points of contact between neurons and muscles that permit the brain to control movement.
CHICAGO--It's not an exaggeration -- many of us have seemingly turned into skilled photographers overnight. With the rapid advances in handheld devices and easy-to-use photo-editing applications, people have been accustomed to snapping their own photos from their phones or tablets for years now. Some of us also are getting savvier and more creative with how photos are shared or posted.
Journal Name: American Journal of Neuroradiology: http://www.ajnr.org/content/ajnr/early/2020/06/25/ajnr.A6650.full.pdf
Title of the Article: COVID-19 is an independent risk factor for acute ischemic stroke.
Corresponding Author: Puneet Belani, MD, Assistant Professor at Icahn School of Medicine at Mount Sinai Hospital, Department of Radiology, Neuroradiology.
Below please find a summary and link(s) of new coronavirus-related content published today in Annals of Internal Medicine. The summary below is not intended to substitute for the full article as a source of information. A collection of coronavirus-related content is free to the public at http://go.annals.org/coronavirus.
A Dangerous Myth: Does Speaking Imply Breathing?
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Researchers at Johns Hopkins Bloomberg School of Public Health have identified the sequence of molecular events by which tiny, tick-like creatures called house dust mites trigger asthma and allergic rhinitis.
The more interactions and connections firm's social media marketing strategy generates, the more customer engagement value it brings.
In the new study, Fang Fang Li and Jorma Larimo from the University of Vaasa and Leonidas Leonidou from the University of Cyprus look at the strategic use of social media from firm perspective, and systematically consolidate and extend present knowledge on social media marketing strategies.
WEST LAFAYETTE, Ind. -- Drones and other aircraft effectively spray pesticides over miles of crops, but the method also can pollute the environment if wind carries the mist off-target.
One of the problems is that tiny droplets are hard for aerial crop sprayers, inkjet printers and a wide range of other machines to control. Purdue University engineers are the first to come up with the math formula that was missing to measure a key property of these droplets.
WASHINGTON -- The U.S. Naval Research Laboratory's Large Angle Spectrometric Coronagraph (LASCO) instrument identified the 4000th comet discovered by the Solar and Heliospheric Observatory (SOHO), a joint mission between the European Space Agency and NASA on June 15.
LASCO, which is aboard SOHO, was developed in 1995 to see the extremely faint emission from the region around the Sun called the corona. Operating in space for nearly 25 years, the telescope has seen much more space action than researchers originally anticipated -- discovering well over half of all known comets.
Scientists at St. Jude Children's Research Hospital alongside global partners are studying a common TP53-R337H variant found among people of Brazilian descent. The researchers found that a variant in the tumor suppressor gene XAF1 increases cancer risk when combined with the inherited TP53-R337H mutation. The work appears as an advance online publication today in Science Advances.