US-Cuban Scientific Collaborations Jeopardized By Travel Restrictions
...published the report. "Scientificprogress is being undermined by regulations that are arbitrarily applied thatdeny researchers the opportunity to share knowledge and resources. The right ofscientists to travel is one of the most important ways of furthering thatexchange. We need to find solutions to this probl...... impact of other investments in the region will be undermined unless governments move quickly to address these problems." Fortunately, African governments are increasingly taking steps to address these challenges. Today, two-thirds of countries in the region have active family planning programs, up from just a ......ks of disease and die-offs in seagrasses. This has undermined the habitats ability to serve as a food source, breeding and nursery ground, erosion protector and more. * Many scientists have long suspected that overfishing has caused the well-publicized collapse of sea lion and sea otter populations in the Berin...Scientists identify the 'Bin Laden' of cancer causing faulty proteins
...Laden of cancer causing faulty proteins. They have undermined the old complex model of how many cancers start a...f Warwicks Molecular Medicine Research Centre has undermined the old complex model of how a cancer start and identified a single protein known as c-Myc as a mis...Rare form of gene discourages alcohol dependence among Jews
...st that the protective effects of this gene may be undermined by a culture that encourages drinking. The gene, ADH2*2 is a rare variation of ADH2, which produces a more active form of alcohol dehydrogenase, the enzyme that catalyzes the first step in alcohol metabolism. However, explains lead author Deborah Has...New technique widens the lens on cancer, could lead to new therapies
...es, of tumor suppressor genes; consequently, genes undermined primarily by methylation have remained hidden. In the current study of human brain tumors, however, researchers determined not only that DNA methylation had occurred in numerous tumor suppressor genes, but that methylation primarily affected differe...Stem cells: From bone marrow to pancreas
...us claims of pluripotentadult stem cells have been undermined by cell fusion events during which atransplanted bone marrow cell fuses with existing beta cells. Taking furtheradvantage of the power to genetically engineer and mark cells in mice, thescientists designed a second experiment that allowed them to exc...MIT team discovers memory mechanism
...ory normally occur, and how these abilities may be undermined in psychiatric and neurologic diseases. Long-lasting memories are stored in the brain through strengthening of the connections, or synapses, between neurons. Researchers have known for many years that neurons must turn on the synthesis of new protein...Archaeologists announce discoveries at the ancient Maya site of Waka' in northern Guatemala
...f an 18-meter temple pyramid that was structurally undermined by looting," Freidel says. Under the consecutive direction of Guatemalan archaeologists Juan Carlos Prez (2003) and Horacio Martnez (2004), a team of masons has worked to consolidate this ancient structure so that scientific excavations can proceed. ...