Tech
A common notion is to walk 10,000 steps a day to improve ones' physical fitness, so pedometers have been a popular wearable health device from before the days of fitness trackers and smartphones. However, simply walking 10,000 steps does not improve physical fitness or improve lifestyle-related illnesses. The international standard of improving physical fitness is to measure the maximum oxygen intake and to have the individual work at more than 60% of that. Interval training uses an individuals' peak aerobic capacity to efficiently and effectively improve physical fitness.
Elias H. Barriga, principal investigator of the Mechanisms of Morphogenesis research group at the Instituto Gulbenkian de Ciência, studies directed collective cell migration, the coordinated motion of a group of cells travelling to their target tissues, guided by external signals. This migratory function is essential for a myriad of processes that range from embryonic development, to tissue repair and cancer metastasis. Regardless of its wide biological relevance the mechanisms that guide directional collective cell migration in the native environments remain unclear.
Hall effect plays an important role in the development of condensed matter physics. The classical Hall effect was discovered by American physicist E. H. Hall in 1879. When an electric current passes through a conductor under an out-of-plane magnetic field, a transverse Hall voltage appears in the direction perpendicular to both the magnetic field and the current. In condensed matter systems, apart from the dynamical phase of a Bloch electron, geometrical phase (Berry phase) must also be considered.
Imagery from the VIIRS instrument aboard NASA/NOAA's Suomi NPP satellite highlights the burn scars from the Elkhorn Fire in northern California on Sep. 01, 2020. This false-color image of the firescape made by using the reflective solar bands on Suomi NPP highlights those areas which have been burned. Suomi NPP's corrected reflectance solar bands (Bands M11-I2-I1) are most useful for distinguishing burn scars from naturally low vegetation or bare soil.
Zika virus infection during pregnancy can cause severe abnormalities in the fetus, including malformations such as microcephaly. In a small proportion of cases, the disease may lead to miscarriage and perinatal death. A network of more than 30 Brazilian researchers set out to find the causes of these problems with the support of FAPESP and obtained important results after half a decade of hard work.
Aviation has been calculated to be 3.5 per cent of all human activities that drive climate change, new research shows.
A new international study provides unprecedented calculations of the impact of aviation on the climate from 2000 to 2018 to produce the most comprehensive insight to date.
The findings show that two-thirds of the impact from aviation is attributed to non-carbon dioxide emissions and the rest from CO2.
Every four years, U.S. presidential campaigns collectively spend billions of dollars flooding TV screens across the country with political ads. But a new study co-authored by Yale political scientist Alexander Coppock shows that, regardless of content, context, or audience, those pricey commercials do little to persuade voters.
What The Study Did: The purpose of this randomized clinical trial in France was to evaluate the effect of low-dose hydrocortisone for the treatment of ICU patients with COVID-19-related acute respiratory failure but the trial was stopped early.
Authors: Pierre-François Dequin, M.D., Ph.D., of Médecine Intensive-Réanimation in Tours, France, is the corresponding author.
To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/
Alzheimer's disease is more common in rural Appalachian Ohio communities than in other rural areas in the state - raising concerns about access to early, specialized care in a region where many residents face struggles getting the medical care they need, a new study has found.
TAMPA, Fla. -- Targeted therapy with BRAF-MEK inhibitors is an effective treatment for patients with advanced melanoma that cannot be surgically removed or has spread to other areas of the body. However, many patients become resistant to the therapy, and this can often lead to further metastasis. Moffitt Cancer Center researchers who helped develop this type of combination therapy are now working to better understand what leads to this resistance in hopes of developing ways to overcome it.
Scientists are looking at luminescent transparent films for use in energy-efficient displays (such as LED screens) and other applications, and the possibilities it opens up for advancing methodologies in several fields of biological and electronics research. However, although multicolor-emitting transparent solid films have been developed, finding efficient ways to tune the color and intensity of light emissions has been challenging.
Philadelphia, September 2, 2020 - After a baby is born, doctors sometimes examine the placenta--the organ that links the mother to the baby--for features that indicate health risks in any future pregnancies. Unfortunately, this is a time-consuming process that must be performed by a specialist, so most placentas go unexamined after the birth.
A new University of Kentucky College of Medicine study provides insight into how a protein called angiotensinogen (AGT) contributes to blood pressure regulation and atherosclerosis.
AGT is a member of the renin-angiotensin system, a hormone system in the human body that regulates blood pressure and fluid balance. AGT produces angiotensin II, which regulates blood pressure and contributes to atherosclerosis, or the buildup of plaque in the arteries.
The storm was a potential tropical depression on Sept. 1, but by Sept. 2, the area of low pressure in the Caribbean Sea strengthened into a tropical storm and was named Nana.
NASA's Terra satellite provided forecasters with a look at the strength of the thunderstorms that make up Nana by analyzing cloud top temperatures.
Potential Tropical Depression 16 developed into a tropical storm by 12:05 p.m. EDT on Sept. 1, south of Jamaica. Tropical Storm Nana is the 14th named tropical storm of the 2020 Atlantic hurricane season.
Warnings and Watches Now in Effect
Sudden death syndrome (SDS) is one of the most destructive diseases of soybean, with losses of nearly 1.7 million metric tons in 2014. The disease is especially severe in the Midwest and North-Central regions, where conditions of high soil humidity and cold weather help the disease grow. SDS is difficult to control as current management practices, which include using fungicide seed treatments and tolerant soybean varieties, can add production costs, reduce profits, and can ultimately be ineffective.