Increasing carbon dioxide threatens coral reefs
...n concentration of the surface ocean. When Langdon changed the carbonate concentration in the Biosphere 2 ocean to that projected level, he observed significant reduction in calcification rates for the coral and coralline algae. Langdon believes the results of his research have some important implication...Spring meeting press conferences
...amics allow us not only to see how our cities have changed but also to project these changes into the future (examples include San Francisco and Baltimore/Washington corridor). Multihazard maps, such as those developed for Evansville, Indiana, can be used with socieoeconomic data to estimate spatial vulnerab...Ecological trends of food availability yield clues to Americans' weight problem
...ds in purchasing and preparation of food also have changed in ways that may be contributing to overweight. Americans are eating more meals outside the home, relying more on convenience foods, and may be consuming larger food portions. Combining government and commercial food industry sources, the researcher...Discovery of fossil mollusks in Alaska links histories of Arctic Ocean and Isthmus of Panama
...r flow through the Bering Strait gateway must have changed from a southerly flow to a northerly one around 3.6 million years ago. This reversal in flow direction had been theorized by computer models of past ocean flow, and was thought to have been caused by formation of the Isthmus of Panama as a land barr...UNC opens first clinical trial of vaccine treatment for advanced breast cancer
... This molecular structure of the fragment has been changed to boost the response of T lymphocytes to kill breast cancer cells. In the clinical trial, which is supported by the Breast Cancer Research Foundation, patients will be randomized to receive either dendritic cells coupled to the engineered HER2/Neu ...What happens when genetic information is not correctly edited in brain cells
...e for fast communication between nerve cells. They changed the gene such that it now had the sequence for the edited version and hence, this key protein for communication between nerve cells was again produced in a correct fashion in spite of the genetically induced impairment in RNA editing. To everyone's s...Tailoring new cotton genes for industry
...ol, and export income showed it. Synthetic fibres changed that picture. Modern fabrics are often blends of natural and man-made fibres,and Australian wool exports have suffered accordingly. The other major natural fibre is cotton. Traditionally grown offshore, it has recently been introduced as an Australia...... spatial patterns of emissions and deposition have changed over time, and how heavy metals may accumulate in the soils posing a potential risk to agricultural food production. Studies of the social, economic and political development in the two regions - in combination with pollution flows and scenario studi...Alcohol researchers suggest specific binding site for anesthetics and alcohols
...itical binding site, Dr. Harris and his colleagues changed S267 and A288 to cysteine and tested whether propanethiol or proply-methanethiosulfanate bound with cysteine at the critical positions. If either S267 or A288 was a critical binding site, the research team reasoned, the analogue should irreversibly a...Cincinnati researchers document environmental problems caused by tourist trade in Crete
... says. Although it's not clear why the wetland has changed so much in one year, Wray believes its current con...ut the boom in tourism that began 30 years ago has changed that, as well as the increasing use ofagricultural irrigation. Tourism boosts the waterdemand by abo...Reefs and atolls of the Australian outback
...al formations that reveal much about how Earth has changed over time. Dr Nicholas Lemon from Adelaide University's National Centre for Petroleum Geology and Geophysics has been field-mapping a Precambrian reef complex in what is now the Flinders Ranges National Park. The work began in 1984 as part of his P...Taking the pulse of giants: Detecting change and its consequences in western mountain ecosystems
...n of fire during the last century has dramatically changed the landscape. In their presentation "Altered Disturbance Regimes: Fire, Fuels, and Forest Structure," Nathan Stephenson (USGS) and his colleagues Thomas Swetnam (University of Arizona) and Thomas Veblen (University of Colorado) will examine how thi...Wisconsin lake study shows persistence of acid rain effects
...he lake," says Frost. "The nature of the food web changed completely." Sport fish in the lake, such as bass and perch, survived the change but the offspring of fish were unable to survive. The zooplankton in the lake, a critical part of the food chain, underwent a complete revolution. Some once-rare zoopl...Hair follicles provide the stem cells for the skin's entire epidermis
...the upper part of the hair follicle. The discovery changed the understanding of hair growth. In the new scenario, stem cells migrate to the bulb, where they interact with a region called the "dermal papilla," to promote hair growth. Hence, "hair grows down and then grows up," says Dr. Sun. Human ski...The ultimate pocket protector--radiation detection made easy
...more sensitive-but also bigger. The design can be changed depending on how portable the customer needs the detector to be and how fast the measurements need to be taken. In this case, the design requirement was for a visually discrete, portable instrument that didn't need to be plugged into an electrical s...New class of supramolecular complexes bind to DNA
... binds to DNA, is water soluble, and can be easily changed synthetically." The approach involves coupling the active site of the anticancer drug cisplatin (cis-diamminedichoroplatinum(II)) to a ruthenium(II) chromophore. Cisplatin produces its therapeutic effects through binding to cellular DNA, disru...Farmers and GM crops should both impact farmland birds, Science study predicts
...del, the team investigated the consequences of the changed herbicide use likely to be associated with GMHT crops. The results showed that weed seed populations can be expected to decline by at least 90% in some cases. An important part of the study links the decline in weed numbers to bird numbers, predictin...New evidence indicates huge vegetation loss accompanied mass extinction
...s of deep-rooting plants, meandering river systems changed rapidly to braided systems. Braided streams run much straighter and faster and branch out for short distances before merging back to the primary stream. They also cause much faster sediment buildup because vegetation is not holding streamside soil in......periods, receiving two abdominal patches that were changed twice a week. The sexual functioning questionnaire and an assessment of psychological well-being were repeated at the end of the initial four-week base-line period and at the end of each 12-week treatment period. During one treatment phase, both patc...Tiny channels carved in plastic enable medical tests on a CD
...also fitted on the CD.The optical sensor on the CD changed color during each step, revealing information about the concentration of substances within it. Sylvia Daunert, professor of chemistry at the University of Kentucky, collaborated with Madou for the chemical part of this work, which was sponsored by NA...