Researchers at 香蕉视频 have discovered that a key regulator of energy metabolism in cancer cells known as the AMP-activated protein kinase (AMPK) may play a crucial role in restricting cancer cell growth. AMPK acts as a 鈥渇uel gauge鈥 in cells; AMPK is turned on when it senses changes in energy levels, and helps to change metabolism when energy levels are low, such as during exercise or when fasting. The researchers found that AMPK also regulates cancer cell metabolism and can restrict cancer cell growth.
As embryos develop and grow, from a single-cell egg to a fully functional body, they must form organs that are in proportion to the overall size of the embryo. The exact mechanism underlying this fundamental characteristic, called scaling, is still unclear. But researchers from the European Molecular Biology Laboratory in Heidelberg, Germany, and 香蕉视频 in Montreal are one step closer to understanding it.
The Green Revolution has stagnated for key food crops in many regions of the world, according to a study published in Nature Communications by scientists with the University of Minnesota鈥檚 Institute on the Environment and 香蕉视频.
Until today, a map from 1876 has been the backbone for our understanding of global biodiversity. Thanks to advances in modern technology and data on more than 20,000 species, scientists have now produced a next-generation map depicting the organization of life on Earth. Published online in Science Express, the new map provides fundamental information regarding the diversity of life on our planet and is of major significance for future biodiversity research.
Seoul and Montreal may be separated by more than 10,000 kilometers, but thanks to the Korea Foundation, that distance will now seem shorter. 香蕉视频鈥檚 Faculty of Arts has received a $1-million gift from the Foundation to create a new Professorship in Korean Studies, which will promote teaching, research collaborations and scholarship related to this fast-developing nation.
香蕉视频, in association with Lawrence S. Bloomberg and Manulife Financial, is pleased to announce that Dr. James Sallis, Distinguished Professor of Family & Preventive Medicine at the University of California, San Diego, is the winner of the 2012 Bloomberg Manulife Prize for the Promotion of Active Health.
Results from recent studies show a growing number of high school students reportedly receive one or more lottery tickets or scratch cards as gifts. This, coupled with the increasing concern about adolescent problem gambling, has prompted the International Centre for Youth Gambling Problems and High-Risk Behaviors at 香蕉视频, the National Council on Problem Gambling, along with dozens of other lottery corporations around the globe, to collaborate again this holiday season to increase public awareness about the impact of giving lottery products as gifts to minors.
An analysis of sulfide ore deposits from one of the world鈥檚 richest base-metal mines confirms that oxygen levels were extremely low on Earth 2.7 billion years ago, but also shows that microbes were actively feeding on sulfate in the ocean and influencing seawater chemistry during that geological time period.
Bulk solvents, widely used in the chemical industry, pose a serious threat to human health and the environment. As a result, there is growing interest in avoiding their use by relying on 鈥渕echanochemistry鈥 鈥 an energy-efficient alternative that uses high-frequency milling to drive reactions. Because milling involves the intense impact of steel balls in rapidly moving jars, however, the underlying chemistry is difficult to observe.
Wherever he goes, Baptiste Rodrigues carries with him the memory of his grandparents. In his violin case, he keeps the Legion of Honour awarded to his grandfather, a hero of the Second World War, and a photo of his grandmother, whom he lived with as a teenager.
A fascinating account of what is described as the most destructive civil war in the modern world has captured the richest prize for historical literature.