The African clawed frog's ancestor inherited one set of chromosomes each from two different species and doubled its whole genome some 18 million years ago, according to an international research consortium led by Japanese and American scientists who sequenced the entire genome of the Xenopus laevis for the first time.
A new study has found that modern popular video games commonly feature alcohol and smoking content and the teenagers who play them are twice as likely to have tried drinking and smoking themselves. The research also concludes that the current age restriction system for video games is not effective.
Modern mass spectrometry systems enable scientists to routinely determine the quantitative composition of cells or tissue samples. However, different analysis software packages often produce different results from the same raw data. An international team of researchers led by Professor Stefan Tenzer from the Mainz University Medical Center has now addressed this problem by comparing and modifying various analysis software packages to ensure that the different software solutions produce consistent results.
Drought is the most important cause of reduced plant growth and crop yield, which makes insights into plant's drought response highly valuable to agriculture. A team of VIB, UGhent researchers set out to shed more light on this vital topic through a research initiative led by Dirk Inzé. The study provided major insights into how plants cope with water-limiting conditions, which can direct advanced breeding and genome engineering efforts to create high-performing, drought-tolerant crop plants.
From a chemical perspective, splitting disulphide bonds under tensile stress is a substantially more complicated process than previously assumed. This is the conclusion of researchers at the Ruhr-Universität Bochum in the journal Nature Chemistry following extensive computer simulations. Depending on the strength of the pull exerted on the bond between the two sulphur atoms, the reaction mechanism that splits the bond is changed.
A research team from Toyohashi University of Technology developed the world's smallest 5-μm-diameter low-invasive needle electrodes, which are assembled on 1 x 1 mm2 blocks. Surprisingly, high quality neuronal signals from a mouse's cortex were stably recorded for a long period. Their new electrode device reduces the total invasiveness to brain tissue in vivo and realizes stable neural recordings, thus enhancing opportunities for needle-electrode device technology in neurophysiology.
Fifty percent of statements made by smokers during counseling sessions designed to help them stop have nothing to do with quitting, a UBC study has found. The study, which focused on conversations smoking cessation counselors in the United Kingdom had with their clients, also found the 50 percent of statements that did relate to quitting mostly focused on medical aids such as smoking cessation drugs, nicotine patches or inhalers.
Mount Sinai researchers say the protein structure can be used to improve effectiveness of chemotherapy.
A UBC study highlights the potential harm that climate change may have on a number of predator and prey relationships. Rebecca Tyson, an associate professor of mathematics at UBC's Okanagan campus, recently published a study on predator and prey relationships, how they change seasonally, and how climate change may lead to the extinction of some species.
Microbes have a remarkable ability to adapt to the extreme conditions in fracking wells. New finding help scientists understand what is happening inside fracking wells and could offer insight into processes such as corrosion and methane production.