Tech
Researchers at UC San Francisco have observed a new feature of neural activity in the hippocampus - the brain's memory hub - that may explain how this vital brain region combines a diverse range of inputs into a multi-layered memories that can later be recalled.
When it comes to ancient Roman imperial architecture, most people usually have a mental image of white marble statues, columns, or slabs. While it is true that many buildings and squares at that time were decorated with marble, it was frequently not white but colored marble that was employed, such as the green-veined Cipollino Verde, which was extracted on the Greek island of Euboea. Because marble was very expensive, it was often placed in thin slabs as a cladding over other, cheaper stones.
A group of scientists at Nagoya University, Japan, have developed an incredibly versatile DNA fluorescent dye, named 'Kakshine' after a former NU student of its members, Dr Kakishi Uno, but it also means to make the nucleus shine brightly, since the nucleus is pronounced 'Kaku' in Japanese.
Of the over 400 climate scenarios assessed in the 1.5°C report by the Intergovernmental Panel on Climate Change (IPCC), only around 50 scenarios avoid significantly overshooting 1.5°C. Of those only around 20 make realistic assumptions on mitigation options, for instance the rate and scale of carbon removal from the atmosphere or extent of tree planting, a new study shows. All 20 scenarios need to pull at least one mitigation lever at "challenging" rather than "reasonable" levels, according to the analysis. Hence the world faces a high degree of risk of overstepping the 1.5°C limit.
PASADENA, Calif. -- Among cancer patients with health coverage in Southern California, those who were diagnosed and treated at Kaiser Permanente, an integrated health care organization, had better survival rates, especially Black and Latino patients, according to Kaiser Permanente research published in The American Journal of Managed Care.
What The Viewpoint Says: Questions regarding the safety of COVID-19 vaccination for patients with cancer are explored in this article.
Authors: Dimitrios P. Kontoyiannis, M.D., Sc.D.,Ph.D., of the University of Texas MD Anderson Cancer Center in Houston, is the corresponding author.
To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/
(doi:10.1001/jamaoncol.2021.1218)
One-third of the water catchments included in a Victorian study had not recovered from a severe drought nearly eight years later, Australian-first research from Monash University shows.
Globally, science holds the common view that rivers and underground water supplies eventually replenish following periods of severe drought or flood.
This study, led by Dr Tim Peterson from Monash University's Department of Civil Engineering and published today in the prestigious international journal Science, is the first in the world to challenge this widely held view.
What The Study Did: Advertisements on videos on made-for-kids channels on YouTube, as well as the frequency of age-inappropriate ads, were analyzed in this study.
Authors: Jenny S. Radesky, M.D., of the University of Michigan Medical School in Ann Arbor, is the corresponding author.
To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/
(doi:10.1001/jamanetworkopen.2021.9890)
Among other things, dams serve as reservoirs for drinking water, agricultural irrigation, or the operation of hydropower plants. Until now, it had been assumed that dams act as net carbon stores. Researchers from the Helmholtz Centre of Environmental Research (UFZ) together with Spanish scientists from the Catalan Institute for Water Research (ICRA) in Girona and the University of Barcelona showed that dams release twice as much carbon as they store. The study has been published in Nature Geosciences.
The first frost of autumn may be grim for gardeners but the latest evidence reveals it is a profound event in the life of plants.
The discovery may affect how we grow crops in a fluctuating climate and help us better understand molecular mechanisms in animals and humans.
Much of our understanding of how plants register temperature at a molecular level has been gained from the study of vernalization - the exposure to an extended period of cold as a preparation for flowering in spring.
A person's stance on abortion is linked to their, often inaccurate, belief about when a fetus can feel pain, a University of Otago study has found.
Lead author Emma Harcourt, PhD candidate in Otago's Centre for Science Communication, says misinformation about abortion and pregnancy is common and potentially harmful.
As we move through the world, what we see is seamlessly integrated with our memory of the broader spatial environment. How does the brain accomplish this feat? A new study from Dartmouth College reveals that three regions of the brain in the posterior cerebral cortex, which the researchers call "place-memory areas," form a link between the brain's perceptual and memory systems. The findings are published in Nature Communications.
Optical imaging systems have been playing an essential role in scientific discovery and societal progress for several centuries. For more than 150 years scientists and engineers have used aberration theory to describe and quantify the deviation of light rays from ideal focusing in an imaging system. Until recently most of these imaging systems included spherical and aspherical refractive lenses or reflective mirrors or a combination of both.
UNSW medical researchers have found a way to starve pancreatic cancer cells and 'disable' the cells that block treatment from working effectively. Their findings in mice and human lab models - which have been 10 years in the making and are about to be put to the test in a human clinical trial - are published today in Cancer Research, a journal of the American Association for Cancer Research.
MAROANTSETRA, Madagascar (May 13, 2021) - A new study by WCS (Wildlife Conservation Society) looks at the prevalence of human consumption of lemur and fossa (Madagascar's largest predator) in villages within and around Makira Natural Park, northeastern Madagascar, providing up-to-date estimates of the percentage of households who eat meat from these protected species.