Stressed intestine can give rise to food allergy
...f three days of social isolation. Some also had to swim for three minutes. The excretion of salt and water is a response of the intestines to wash out unwanted substances. However, the intestinal wall is then much more permeable to allergens. Whether or not this has a function is not known. The Amsterdam ...UMass microbiology team probes bacterium's surprising survival tactics
... as the well-studied E coli, are able to sense and swim toward sugars. But scientists had never seen geoba...at in previous studies the ability of beobacter to swim had always been analyzed when it had been grown on soluble metals, which are often used in laborator...Microbiology team probes bacterium's surprising survival tactics
... as the well-studied E coli, are able to sense and swim toward sugars. But scientists had never seen Geob...at in previous studies the ability of Geobacter to swim had always been analyzed when it had been grown on soluble metals, which are often used in laborator...Popular weed killer demasculinizes frogs, disrupts their sexual development
...kly excreted from the body. Aquatic life, however, swim and breed in atrazine-contaminated field runoff. Though previous studies showed deformities and abnormalities in adult amphibians only at very high doses, no one had looked in detail at hormone levels in frogs or at effects on tadpoles, the larval st...Minneapolis chemist wins national award for unique separations
...ficial gill, with the idea of humans being able to swim around like fish, he said. It may have started off as something between an intellectual challenge and a stunt, but it worked, and a certain dog named Muggins can attest to it. Separation happens when any particular product moves from one side of the ...White sharks migrate thousands of miles across the sea, new study finds
...a wherethe sharks are feeding. We tag them as they swim around the boat." At the Ao Nuevo site, Davis placed a decoy in the water: a plywood cut-outof a seal. A shark will approach the decoy, sometimes mouthing it, andwhen the shark surfaces, Davis applies a tag to its back. Satellite tagging data confir...Study suggests way to short-circuit microbe communication
...nt chemical cues. Sensing a nutrient, they tend to swim toward the source in hopes of a meal; sensing a potentially damaging chemical they tend to tumble away from the source. Kiessling noted that cell chemoreceptors are known to be extremely sensitive, able to detect changes in concentration as low as 5...Giant icebergs, unprecedented ice conditions threaten Antarctic penguin colonies
...the open sea. The birds must now walk rather than swim to their colonies. Their average walking speed is...2 kilometers (.6 to 1.2 miles) per hour. They can swim at an average of 7 to 8 kilometers (4.3 to 4.9 miles) per hour. The Adelie colony at Cape Crozier...Primitive microbe offers model for evolution of animals
...elled protists, which use a whip-like flagellum to swim and draw in food. Surrounding this flagellum is a circle of closely packed, finger-like microvilli that filter food from the water. Scientists have long suspected that choanoflagellates might represent modern examples of what the ancestors of multice......p, and be less of a deterrent to native fish which swim more freely the open water. It is this demand for selectivity that makes the application of these deterrents so challenging. The researchers have also been developing an electronic detector that can register the movement of fish through a point of...Dust from Africa leads to large toxic algae blooms in Gulf of Mexico, study finds
...se visit from a red tide," said Lenes. Humans who swim in the Gulf can experience respiratory problems by breathing toxins from K. brevis that get in the air. Also, eating shellfish poisoned by red tides can lead to paralysis and memory problems. Around the Gulf of Mexico, scientists and others have reco...UK scientists develop 'his-and-hers' fertility test kit
...atically to 37C. Only the motile sperm are able to swim through the mucus column to a point where they are automatically collected, tagged with gold-labelled antibodies and detected on a nitro-cellulose strip. If there are adequate numbers of sperm present and if they are sufficiently motile, the test wil......h some interesting and useful properties. Lampreys swim by rhythmic undulations of their bodies resulting ...n vary by an order of magnitude. Lampreys can even swim backward. Ayers is building an autonomous robotic lamprey that can do the same thing. Ayers is not ...Gulp! URI professor studies how sharks eat
...s how sharks swim. "The old theory was that sharks swim like airplanes fly," says the researcher, who note...ter moving around the shark and to see that sharks swim at an angle to the flow. As part of her postdoctoral research, Wilga showed that the sharks body and...E. coli bacteria may be more useful than you think
...tory has created a protein that allows bacteria to swim away from nitrate, one of their main sources of energy. The avoidance of nitrate is actually a disadvantage to E. coli, but the fact that this manufactured protein works suggests that novel biosensors can be created to meet a designer's specification...UF study shows all-time high number of shark attacks last year
... that natives -- who learn over the years where to swim and not swim -- might choose not to go into," said Burgess, an ichthyologist at the Florida Museum of Natural His...Scientists study life of economically important blue crab
...y, marine biologists assumed that the female crabs swim out into the bay with ebb tide currents, then avoid the incoming flood tide by sitting on the bottom. But research the Wolcotts conducted with the Smithsonian Environmental Research Center found that few female crabs are near the surface during night...Researchers discover gene responsible for cilia, lungs' natural cleaning system
...celled organisms that enable the tiny creatures to swim around in pond water. Such novel work will help other researchers trying to understand and combat chronic lung diseases, the UNC-CH scientists said. The team used knowledge developed by cell biologists who have studied the cilia of sea urch...Study reveals structure of DNA packaging motor in virus
... when they rotate synchronously, the bacterium can swim quite rapidly towards a source of food, or carbohydrates, along a concentration gradient." The enzyme that manufactures ATP, called ATP synthase, also operates as a rotary motor to produce ATP or to pump protons. The DNA-packaging motor appears t......or not be able to fly at all. They may crash land, swim tipped to one side with one or both legs or wings extended, or may be in the water on their back with feet in the air. On land, birds may stagger and have difficulty walking; they may fall over and be unable to right themselves (appear intoxicated). ...