Earth
The life cycle of a crawfish can be fairly straight forward. In the summer months, crawfish reproduce in underground mud burrows with a plug of mud on top of the burrow to protect them from predators. In late summer and early fall, rain softens the mud plugs so the crawfish can push their way out of the burrows and enter ponds, where they feed, molt and grow throughout Louisiana's typically mild winters. Spring then brings crawfish harvest season.
Mitochondria are the power plants of our cells and play an important role in providing energy for normal function of the tissues in our body. Nerve cells are particularly dependent on mitochondria for their activity and decreased mitochondrial function is seen in both inherited and more common age-associated forms of degenerative diseases. A long-standing view has been that neurons, in contrast to other cell types, cannot adjust their metabolism to compensate for mitochondrial dysfunction, and therefore irreversibly degenerate.
Sophia Antipolis, France - 30 Aug 2020 : Trimetazidine administered after successful percutaneous coronary intervention (PCI) does not improve outcomes in patients with chronic or acute coronary syndromes, according to results of the ATPCI trial presented in a Hot Line session today at ESC Congress 2020.1
Angina refers to constricting pain or discomfort in the front of the chest or in the neck, jaw, shoulder, or arm due to reduced blood flow to the heart. It can occur during acute coronary syndromes (ACS) and chronic coronary syndromes (CCS).
Sophia Antipolis, France - 30 Aug 2020: Premenopausal women have good long-term outcomes after a heart attack, according to late breaking research presented today at ESC Congress 2020.1
"Previous research has shown that women are more likely to die after a heart attack than men," said principal investigator Professor Diego Ardissino of Parma University Hospital, Italy.2 "Our study shows that this does not hold true before the menopause, when women are still exposed to oestrogen, a hormone that protects against heart disease."
When Brazil refused soy grown on deforested land in the Amazon, the movement spread worldwide. Brazil's Soy Moratorium in 2006 became the first zero-deforestation agreement. And from cocoa in Ghana to palm oil in Indonesia, now companies would have to explain: where was their product from? Did it contribute to deforestation?
Plasmonic surface lattice resonances (SLRs) supported by metal nanoparticle arrays have many merits such as strong field enhancements extended over large volumes, as well as long lifetimes, narrow linewidths, angle-dependent dispersion, and a wide range of wavelength tunability.
In order to improve the performance of SLR-based nanophotonic devices such as nanolasers, nonlinear optical devices, and optical sensors, much effort has been put into improving SLR quality factors.
Online abuse targeting women, including threats of harm or sexual violence, has proliferated across all social media platforms but QUT researchers have developed a statistical model to help drum it out of the Twittersphere.
Associate Professor Richi Nayak, Professor Nicolas Suzor and research fellow Dr Md Abul Bashar from QUT have developed a sophisticated and accurate algorithm to detect these posts on Twitter, cutting through the raucous rabble of millions of tweets to identify misogynistic content.
The world's strongest ocean currents, which play key roles in fisheries and ocean ecosystems, will experience more intense marine heatwaves than the global average over coming decades, according to a paper published today in Nature Communications by researchers from the ARC Centre of Excellence for Climate Extremes at the University of Tasmania and CSIRO.
A surface displays structural colors when light is reflected by tiny, regular structural elements in a transparent material. Researchers have now developed a method to make structural colors from cellulose-based polymers by using coated droplets that exist in a surrounding fluid--so-called liquid marbles. The system readily responds to environmental changes, which makes it interesting for applications in bio-based sensors and soft photonic elements, according to the study published in the journal Angewandte Chemie.
Superhydrophobic surfaces are widely used in many industrial settings, which mainly consist of rough solid protrusions that entrap air to minimize the liquid/solid area. The stability of the superhydrophobic state favors a relatively small spacing between protrusions. However, this in turn increases the lateral adhesion force that retards the mobility of drops. Thus, the simultaneous optimization of both stability of the Cassie state and minimization of the lateral adhesion force remains a great challenge for SHPOS with high performance.
Climate change occurring shortly before their disappearance triggered a complex change in the behaviour of late Neanderthals in Europe: they developed more complex tools. This is the conclusion reached by a group of researchers from Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) and Università degli Studi die Ferrara (UNIFE) on the basis of finds in the Sesselfelsgrotte cave in Lower Bavaria.
AMES, Iowa - Environmental extremes driven by climate change create stresses in crops, and plant breeders are attempting to untangle the genetic factors that endow plants with tolerance to stress. A new study from Iowa State University scientists shows how two seemingly unrelated responses in corn plants interact to help the crop survive heat stress.
Allogenic hematopoietic stem cell transplantation (HSCT) is a procedure that infuses a donor's healthy blood-forming stem cells into a recipient as part of a potentially curative therapy for cancer. While this therapy can be life-saving, a major complication is the development of graft-versus-host disease (GVHD), which causes significant morbidity and can be fatal. Before allogenic HSCT, a patient receives a conditioning regimen, chemotherapy designed to deplete his/her normal white blood cells, including T cells.
NASA infrared imagery revealed a burst of strength in Tropical Storm Hernan, located over the Gulf of California. At 12:30 a.m. EDT, NOAA's National Hurricane Center or NHC noted that recent satellite-based wind data indicated Hernan was located northeast of previous estimates.
The body of water located between the Baja California Peninsula and the Mexican mainland is known as the Gulf of California. It is a marginal sea of the Pacific Ocean.
CORVALLIS, Ore. -- Natural disasters alone are not enough to motivate local communities to engage in climate change mitigation or adaptation, a new study from Oregon State University found.
Rather, policy change in response to extreme weather events appears to depend on a combination of factors, including fatalities, sustained media coverage, the unusualness of the event and the political makeup of the community.