environmental 2 10

Tag: "environmental" at biology news

Corals switch skeleton material as seawater changes

...further evidence of corals' extreme sensitivity to environmental change," Ries said. "This is particularly signifi...dence that corals are extremely sensitive to rapid environmental change, such as global warming," he said. ...

Major initiative proposed to address amphibian crisis

...the first clear and sweeping biological example of environmental change, pollution and toxicity that may ultimately affect many other animal species, including humans.The demise of amphibians also has ecological ripple effects ?they provide a major control of insect pests, and in turn serve as part of the food sup...

Immune system police learn early and sometimes badly

... recognize all endogenous tissue which, along with environmental and other factors, can lead to autoimmune disease. T cell schooling in the thymus peaks in the first six weeks of life in the mouse, which roughly translates to the first 15 years of human life. Those early lessons seem to last a lifetime and the f...

Researchers attack tumor cells by exploiting dependency on sugar metabolism

...dly proliferating tumor cells to survive even when environmental oxygen levels are not optimal. In addition, perturbations of the normal physiology of mitochondria, cellular structures involved in oxygen-dependent ATP production, have also been linked to cancer. Dr. Valeria Fantin, formerly of the Department of ...

DNA to the defense

...ed an unusual chromosomal structure as a result of environmental adaptation. In this parasite, the chromosomes are highly enriched in subtelomeric sequences ?dynamic and variable regions that connect the chromosome ends to the gene-rich cores. These subtelomeres, in some cases comprising 75% of the total chromos...

How did cactuses evolve?

...est cactus lineages began. Using field studies and environmental modeling, Edwards and Donoghue found that the Pereskia species already showed water use patterns that are similar to the leafless, stem-succulent cacti. "[Our] analyses suggest that several key elements of cactus ecological function were established...

The brain, traffic and nano-circuits -- e-Science takes on major challenges

...are, understanding the brain, mapping the detailed environmental impact of traffic and designing future generation nano-scale electronic circuits. The Engineering and Physical Sciences Research Council (EPSRC) and other funding partners have awarded more than £13m to three, 3-4 year projects covering each of thes...

Science captures the essence of fruit

...f a desired compound at a low cost and with little environmental impact. And because biofermentation uses the actual genes that plants use in the wild, the resulting flavour or fragrance compound has exactly the same molecular make-up. It is, as the scientists say; "Nature Identical". While the possibility of 'f...

Harmful Algal Blooms monitored from space in Chile

...ectly related to the operation of our company. The environmental monitoring and HAB detection is part of our daily operation procedures. Also, historical environmental information supports our strategic decisions for farm site location. "To obtain the amount of info...

Smell of success for nanobiosensors

...y in healthcare but also in agriculture, industry, environmental protection or security. "The potential uses of smell technology are endless," notes Josep Samitier, the coordinator of the SPOT-NOSED project that developed nanobiosensors to mimic the way human and animal noses respond to different odours. This n...

UCSD researchers develop 'smart petri dish'

...e very useful for understanding more about the way environmental toxicants such as water contaminants or viruses like hepatitis cause long-term liver damage." Others involved in the development include Sara Alvarez, a graduate student in Sailor's laboratory, and Austin Derfus, a graduate student of engineering i...

Microbes transform 'safest' PBDEs into more harmful compounds

...t issue of the journal. The finding, by a team of environmental engineers at the University of California, Berkeley, suggests these transformations could complicate efforts to reduce or eliminate the most problematic polybrominated diphenyl esters (PBDEs) from the environment. "This study, for the first time, es...

Scientists reverse evolution

...o use for specialized jobs," including adapting to environmental changes, Tvrdik says. Each gene is made of DNA. Some of the gene's DNA carries a code or blueprint that makes a protein to carry out some specific function in an organism. Some genetic mutations change this "coding region" and thus change the prot...

Plant protection from cold decoded

...verall research efforts into how plants respond to environmental stresses such as cold, soil salinity and drought. "From a genetic and molecular standpoint, these responses are all related," Zhu said. "Some of the same genes are involved in all of these responses and understanding how they work can help us develo...

Airborne mold spores increase kids' risk for multiple allergies

...eated equal, says Tiina Reponen, PhD, professor of environmental health at UC and corresponding author on the study...breathe," adds Melissa Osborne, a graduate of UC's environmental and occupational hygiene program and study lead author. "But because mold exists naturally in the ou...

Bird brains shrink from exposure to contaminants

...Brain Research, strongly suggests that exposure to environmental levels of DDT causes significant changes in the brains of songbirds. Previous studies have suggested that exposure to DDT residues affect the brain, but none have actually demonstrated it. The research team, including Iwaniuk's supervisor, psycholo...

New flood-tolerant rice offers relief for world's poorest farmers

...perature, rate of nitrogen fertilizer use andother environmental factors. Annual crop loss has been estimated atmore than $1 billion. "For half a century, researchers have been trying to introducesubmergence tolerance into the commonly grown rice varieties throughconventional breeding," said rice geneticist and ...

Invasive species alter habitat to their benefit

...ever, came up with a way to tease out the cause of environmental changes in northern Michigan wetlands where invasi...ppression of natural wildfires, also may result in environmental changes that affect species diversity. "My question was, are humans causing the changes, or are th...

South Pacific plant may be missing link in evolution of flowering plants

...ude the Water Framework Directive, the Gaza Strip, environmental sustainability and oil spills in Egyptian waters. ...propriate for a publication dedicated to promoting environmental best practice. As David Butler says, 'Our goal is to build on the Journal's deserved reputation by...

Beekeepers work hard for the honey, despite changing tupelo forest

...reness of the social context of beekeeping and how environmental change and sociopolitical and economic factors play out to influence the use and access to tupelo forest." Some beekeepers say that every year they seem to be getting less honey for their efforts. Stallins and Watson will explore the degree to whic...

1 2 3 4 5 6 7 8 9 10