14-07-26 A novel combination of microscopy(显微镜检查) and data processing has given researchers at the Department of Energy's Oak Ridge National Laboratory an unprecedented look at the surface of a material known for its unusual physical and electrochemic...
14-03-05 Usually, microelectronic devices are made of silicon or similar semiconductors. Recently, the electronic properties of metal oxides have become quite interesting. These materials are more complex, yet offer a broader range of possibilities to tune t...
14-02-21 One of science's strongest dogmas is that complex life on Earth could only evolve when oxygen levels in the atmosphere rose to close to modern levels. But now studies of a small sea sponge fished out of a Danish fjord shows that complex life does no...
13-09-26 Oxygen appeared in the atmosphere up to 700 million years earlier than we previously thought, according to research published today in the journal Nature, raising new questions about the evolution of early life. Researchers from the University of Co...
13-08-28 Like volunteers handing out cups of energy drinks to marathon runners, specially engineered helper cells transplanted along with stem cells can dole out(少量发放) growth factors to increase the stem cells' endurance, at least briefly, Johns Hopkin...
13-08-05 How is vital oxygen supplied to the tropical ocean? For the first time, oceanographers at GEOMAR Helmholtz Centre for Ocean Research Kiel were able to make quantitative statements regarding this question. They showed that about one third of the oxyg...
13-06-20 Differences between Martian meteorites(陨石) and rocks examined by a NASA rover can be explained if Mars had an oxygen-rich atmosphere 4000 million years ago -- well before the rise of atmospheric oxygen on Earth 2500m years ago. Scientists from O...
12-01-31 A new family of proteins which regulate the human body's ' hypoxic(氧过少的) response' to low levels of oxygen has been discovered by scientists at Barts Cancer Institute at Queen Mary, University of London and The University of Nottingham. The di...
11-10-13 BGI, the world's largest genomic organization, announced that an international team of researchers from Korea, China and the U.S. has, for the first time, demonstrated the physiology and longevity of the naked mole rats (NMR) in terms of genomics an...
11-08-02 ESA's Herschel space observatory has found molecules of oxygen in a nearby star-forming cloud. This is the first undisputed detection of oxygen molecules in space. It concludes a long search but also leaves questions unanswered. The oxygen molecules...