Mexican farmers effectively cultivate phenotypic diversity in maize
...ndreds of years. The fields are sown from one crop cycle to another with the seeds of the ears from the previous harvest. However, from time to time farmers decide to exchange seed batches with other neighbouring farmers, situated more or less geographically distant, in order to run experimental crops from...NASA-inspired technology may help preserve women's future fertility after cancer treatment
...icles remain dormant until triggered at puberty to cycle through several stages of development before reaching full maturity. Eggs are nurtured within the follicle. Once all the follicles are gone, ovaries fail and a woman enters menopause. "We looked at using suspension culture systems to provide a unifor...K-State soil carbon sequestration research playing role in climate change efforts
...ve efforts in the development of integrated carbon cycle research. The efforts are toward building a coordinated North American Carbon Program. The working group was established by the United States and Canadian governments. At the meeting, Charles W. Rice, professor of soil microbiology at K-State and di...How do animals exposed to 24-hour light retain their wake-sleep habits?
... the conditioning of plants and animals by a light cycle that starts with dawn and ends with sunset. The cycle of dawn and dusk changes with the seasons everywhere in the world (except at the equator, where ther...ESA consults European science community on candidate Earth Explorer missions
...ole of terrestrial vegetation in the global carbon cycle and its response to climate variability under the ...of smaller satellites to give a repeat observation cycle of approximately three hours. One of these satellites will be EGPM flying in a Sun-synchronous near-...Phytoplankton may stimulate uptake of CO2
...periods that keep the temperature low." The carbon cycle is a complicated system of causes and effects that are not completely understood, but researchers have long suspected that the oceans are the main regulator of the Earth's atmosphere, said Hales. For example, during the ice ages more of the Earth's ...Keck Futures Initiative announces grant recipients
... positive feedback loop, along with a stable limit cycle due to both feedback loops. Dunlap and his colleagues will test this model in the genetically, biochemically, and molecularly tractable Neurospora system in which FRQ acts as the essential negative element in the circadian feedback loop. JAMES F...Female gluttony blamed on male tick
...quire six to 10 days to engorge fully. The feeding cycle consists of three phases: a preparatory phase when she attaches herself to the skin; a slow phase, during which the female feeds to 10 times her unfed weight and the third phase after copulation when the female increases her weight a further 10-fold....UIC researchers discover gene that causes liver cancer in animals
...of a family of genes that controls the entire life cycle of a cell, including its proliferation, maturation and death. In the current study, scientists in Costa's lab used genetically altered mice to establish the link between Foxm1b and liver cancer, showing that the gene is essential for the cancerous ce...Brood X cicadas will cause limited damage to trees, yard plants across eastern U.S.
...d and begin the reproductive segment of their life cycle when soil temperatures reach 62 degrees Fahrenheit. While it's hard to know just how many cicadas will appear in late May, Clay said the total number of emergent cicadas in the state of Indiana alone could reach the trillions. Contrary to what one m...The biological clock: What really makes us tick
...clocks also is key to understanding how sleep-wake cycle disruptions lead to various types of depression and may ultimately uncover ways to better cope with shift work and jet lag. Hardin's enthusiasm for this burgeoning field is obvious and his contributions significant. He was trained as a molecular g...New data on ant adaptability within their environment
...onmental change that occurs within the normal life cycle of a colony. In the new work, Yang and colleagues headed to the field to explore the question of whether caste structure can undergo similar changes on much larger spatial and temporal scale. The researchers found that the proportion of castes, as w...Failure of DNA repair mechanism precedes final stage of deadly leukemia, new Penn study shows
...he unique blocking action of a blood cell's normal cycle of DNA production and repair. The researchers linked the blocking action to a known oncogene, BCR/ABL, and suspect it to be the cause of blast crisis, the second and final stage of CML disease when the body no longer makes enough healthy white blood...Study reveals important new factor in cystic fibrosis lung inflammation
...ute to chronic. "The more we know about the unique cycle of inflammation in CF, the better we are able to develop the appropriate tools to fight it. This study adds to our knowledge about CF and suggests an additional therapeutic direction," said Robert J. Beall, Ph.D., president and CEO of the Cystic Fibr...Stem cells offer promise for hair growth
... of the hair follicle. Hair follicles continuously cycle through growth, rest, and re-growth phases. In man...ople with hair loss, however, the follicles do not cycle correctly, with a growing number of abnormal follicles entering longer resting phases and producing ...Researchers find a protein that controls cell growth
...the breakdown of proteins associated with the cell cycle can lead to cancer, the uncontrolled growth of cel...esult, these cells entered the S phase of the cell cycle faster than control cells with unmutated Skp2. The premature entry of a cell into the S phase ...UN study shows environmental consequences from ongoing boom in personal computer sales
.... Because so much of the energy used over the life cycle of a computer is in manufacturing high-tech components, which are usually destroyed in recycling processes to recover raw materials, the energy savings potential of reselling or upgrading is some 5-20 times greater than recycling, says Williams. "Ev...UCSB discovery may accelerate new treatment for global health problem
...risk for infection. Although the schistosome life cycle also involves an invertebrate host, the parasite i...he water supply, where they hatch and complete the cycle by infecting new snail hosts. Those eggs that are not excreted become trapped in the tissues of the...UC Santa Barbara donates discovery to OneWorld Health that may speed disease treatment
...risk for infection. Although the schistosome life cycle also involves an invertebrate host, the parasite i...he water supply, where they hatch and complete the cycle by infecting new snail hosts. Those eggs that are not excreted become trapped in the tissues of the...UC San Diego faculty receive funding from von Liebig Center to commercialize academic research
...ions that optimize the circuit quality in terms of cycle time, circuit size, and interconnect costs. This grant will enable his team to productize the tool by enabling it to interface to common industry formats, linking it to simulation tools, and filing for appropriate intellectual property rights. Georg...