Tag: "phenomenon" at biology news

Marijuana use could cause tubal pregnancies

...blocked CB1 in normal mice, they observed the same phenomenon in most of the mice the embryos failed to reach the uterus. The same thing happened when the mice were given an amandamide-like drug to over-stimulate the receptor. In a search to unravel this mystery, Haibin Wang, Ph.D., research assistant professo...

Study reveals why eyes in some paintings seem to follow viewers

...ection." Todd said people may be surprised by this phenomenon because of the unique perceptual aspects of viewing a picture. We perceive the object depicted in a painting as a surface in 3-dimensional space, but we also perceive that the painting itself is a 2-dimensional surface that is hanging on the wall. "W...

TANGO: towards faster prognosis of Alzheimer's and Parkinson's diseases?

...g shape, causing them to stick to each other. This phenomenon is perceptible, but up to now it has been difficult to predict. Researchers from the Flanders Interuniversity Institute for Biotechnology (VIB) at the Free University of Brussels (VUB), in collaboration with a German research group, have developed TA...

'Defensive' action by influenza viruses demonstrated by Hebrew university researcher

...first time that the activity that lies behind this phenomenon has been demonstrated, said Arkin. This is because researchers had previously only concentrated on examining the binding action of the blocker to the viruses, but not the process taking place in the viruses'channel. Thus, there was only a limited pic...

NASA satellites detect 'glow' of plankton in black waters

...g to a study conducted in the Gulf of Mexico, this phenomenon can forewarn fishermen and swimmers about developing cases of red tides that occur within plumes of dark-colored runoff from river and wetlands, sometimes causing "black water" events. Dark-colored river runoff includes nitrogen and phosphorus, which...

Professor calls for a new branch of learning

...ported to travel from nasal nerves to the brain, a phenomenon seen with some viruses similar in size to nanoparticles." Nanoparticles, materials the size of millionths of a millimetre, are already present in large numbers in the air from natural sources and from vehicle exhaust emissions. They are also found i...

Winner of 2004 EMBO Science Writing Prize announced

...the exotic tale tells how Pond stumbles across the phenomenon of the glowing Bobtail Squid and learns how its quorum-sensing technology can be used in the fight against the Pseudo bacteria. English-born, Matthew Bottomley currently lives and works in Rome, Italy. His research at the Istituto di Ricerche di Bi...

JGI announces community sequencing program portfolio

...-celled alga responsible for the natural saltwater phenomenon known as "red tide," which can pose a human health risk and detrimentally affect regional marine economies. Accumulibacter phosphatis stores huge amounts of phosphorus inside its cell. Engineers have exploited this capability to remove excess phos...

UCR earns $1.5 million grant to examine how engineered crop genes stray

...controversy over genetically modified foods. That phenomenon was illustrated recently when engineered genes from corn grown in the United States strayed into remote fields of corn in Mexico. UC Riverside's project is unusual because it will examine both the natural and the human factors that spread transgenes...

Got the time?

...cycles roughly over the course of a 24-hour day, a phenomenon known as circadian rhythmicity. In their study, Ueda et al. first identified genes that are expressed in high amplitude circadian patterns. Such genes demonstrate cyclical expression irrespective of variations in exposure to light, maintaining their ...

Two-month study of life in mid-Atlantic yields trove of species, new insights & questions

...gical coupling" and thought to be the largest such phenomenon ever recorded; Repeated observations of a reef-building, cold-water coral known as Lophelia pertusa. While no major reefs were found, the species was documented for the first time along this section of the mid-Atlantic Ridge; New insights into t...

Spring through fall, cities are greener longer than neighboring rural regions

...to determine the effect that the urban heat island phenomenon has on the growing season for urban vegetation, the BU team used satellite data to evaluate when vegetation in urban and rural settings first became green and then when it entered dormancy, thereby ending one season's growing cycle. The researchers...

The beak of the squid

...as emerged as a fundamentally important biological phenomenon and as a versatile, powerful tool for biomedical research. In organisms from fungi and flies to plants and mammals, RNAi plays a multifaceted role in molecular biology by silencing genes through chromatin remodeling, interfering with protein synthesi...

Briggs takes to the molecular level Darwin's findings on plants sensing the direction of light

...mple, Charles Darwin and his son were drawn to the phenomenon and performed some classic experiments that paved the way for further studies, including Briggs' successful approaches. The Darwins could not have imagined that the topic would in the 21st century be studied at the molecular level as it is now. Profe...

Significant strides in small regulatory RNA research in plants

...hloem-transmissible signal is a well-characterized phenomenon that can be readily observed following localized viral infection or with hetero-grafting experiments. Small RNAs have been viewed as likely candidates for the systemic silencing signal, but there has been no direct evidence of their transport through...

Mouse brain stem cells capable of converting into blood vessel cells

...y be able to give rise to additional cell types, a phenomenon known as plasticity. But recent findings have challenged this theory, suggesting that many of these stem cells merely merge or "fuse" with an existing cell within a tissue forming a hybrid that takes on the pre-existing cell's functions. "Resolving t...

'Anti-plume' found off Pacific Coast

...scientists has documented for the first time a new phenomenon the creation of a void in the seafloor that draws in rather than expels surrounding seawater. They report their discovery in the July 15 issue of the journal Nature . Oregon State University oceanographer Robert Dziak said the discovery is impo...

Altered expression of key developmental genes underlies evolution of butterfly wing patterns

...e of Darwin, but finding a molecular basis for the phenomenon in nature has proven difficult. In their study, Reed and Serfas show that changes in a gene-regulation time sequence are associated with an evolutionary switch between line and spot color patterns. These findings demonstrate how dramatic evolutionary...

Study finds plant enzyme function changes with location in cell

...o see how widespread this enzyme function-shifting phenomenon might be. Using computer algorithms, they've analyzed the entire Arabidopsis genome for variations in "address signals." Of the approximately 6,000 Arabidopsis gene families, they've identified 239 that produce enzymes that are sent to different loc...

Climate may play role in lynx's hunting ability

...e kill or not. "This lynx-hare cycle is an amazing phenomenon and it has proven to be a very robust relationship," said Boutin. "If we start to get climate warming and a crusting of the snow without long, deep cold spells, it could change the interaction and disrupt this robust system we're used to seeing." Thi...

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(Date:4/16/2014)... A team that includes scientists from the School ... Center at San Antonio, Johns Hopkins University and St. ... helps a common fungus to infect the body. , ... infections, diaper rashes and oral thrush, and is the ... also cause a life-threatening infection of the blood called ...
(Date:4/15/2014)... CORVALLIS, Ore. Handling frozen fish caused nearly half ... quarter of the injuries on freezer-longliner vessels operating off ... University shows. , Many of those injuries and others ... with the right interventions, and the research methods used ... and fatalities in other types of commercial fishing, said ...
(Date:4/14/2014)... made in chemotherapy over the past decade, but targeting ... to be a major challenge. , Nanotechnology has ... use of nanocarriers, or capsules, that can transport cargoes ... , The catch? These carriers are tiny, and it ... from 10 nanometers to 100 nanometers, and the drugs ...
(Date:4/14/2014)... Penicillin, one of the scientific marvels of the 20th ... once won against bacterial infections. But scientists at the ... approach to restoring its combat effectiveness, even against so-called ... power of the penicillin family of drugs since their ... example, the staph infection, brought about by the bacterium ...
(Date:4/14/2014)... 2014 Popular web information on colorectal cancer is ... doesn,t address the appropriate risks to and concerns of ... suggests. , In a review of a dozen popular ... colorectal cancer screening were written beyond the recommended sixth-grade ... address key risks, as well as the barriers to ...
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