During the evaluation of competitive athletes, a history or a documentation of cardiac arrhythmias has become particularly important because arrhythmias may be the initial expression of an underlying cardiac disease or of primary electrical disorders, sometimes early manifestations of potentially life-threatening events. Cardiac arrhythmias are among the most important causes of non-eligibility to sports activities, and some arrhythmogenic diseases are three times more frequent among athletes than among sedentary subjects of the same age.
Implanted pumps improved heart function enough in a small percentage of patients awaiting a heart transplant that they were able to leave the hospital without a pump and without a new heart, according to a study in Circulation: Journal of the American Heart Association.
The heart-assist devices also significantly improved the cardiac function in many other heart failure patients.
Commonly used by around 10 million people in east Africa and countries in the Arabian peninsula, chewing khat for its stimulant properties has also become popular in the UK among immigrants of the Somali, Yemeni and Ethiopian communities.
Technically advanced molecular imaging provides a 3-D way to significantly improve the diagnosis of heart disease, according to researchers.
The Huygens Atmosphere Structure Instrument (HASI) scored a first in 2005 by measuring the electrical conductivity of Titan’s atmosphere. The results hint at a new way to investigate the subsurface layers of Titan and could provide insight into whether or not Titan has a subsurface ocean.
It’s totally understandable to feel ambivalent when presented with both positive and negative evidence. However, people often feel ambivalent even when all the news is good or bad, anticipating conflict before it arises. The first empirical demonstration of this reaction appears in new study from the June issue of the Journal of Consumer Research.
Small changes in agricultural and sanitation practices may eliminate the spread of a disease that affects some 200 million people living in developing nations around the world.
Researchers working in remote farming villages in western China report that providing medicine to infected people and animals, along with modifying irrigation and waste treatment practices could reduce, or even eliminate, the long-term transmission of schistosomiasis.
Broccoli, eggplant, cabbage and capsicum grown with compost made from recycled garden offcuts have produced equivalent yields to those cultivated by conventional farm practice, but without the subsequent build up of phosphorus.
NSW Department of Primary Industries (DPI) scientists have found very high levels of phosphorus and low levels of organic carbon in vegetable growing soils, during a major research project designed to help Sydney Basin vegetable growers significantly improve soil quality and productivity.
The basic Keller explant is a rectangle of dorsal mesendoderm and ectoderm from an early-gastrula-stage Xenopus laevis embryo. It is ~60° to 90° wide, extending from the bottle cells to the animal pole. This protocol describes how to dissect, assemble, and cultivate Keller explants. The purpose of Keller explants was initially to allow observation of gastrulation movements, particularly convergent extension, in culture.
Researchers have identified novel genetic mutations that are linked to hereditary diffuse gastric cancer, with these mutations being due to both independent mutational events and common ancestry, according to a study in the June 6 issue of JAMA.