Hurricane Ivan helps student study sinkholes
...s then monitor the site. But another three to four inch rainfall would be nice." Soon, to confirm his interpretations from this new use of electrical resistivity, Schwartz will drill a series of wells. Schwartz will present the paper, "Hydrologic characterization of sinkholes in agricultural settings," at...New method to measure ancient land elevation developed by Field Museum scientist
... higher the elevation, the more stomata per square inch of leaf surface a plant would need to survive. By simply counting the number of fossil stomata, Dr. McElwain can estimate how much carbon dioxide was in the air when the fossil leaf developed. From that, she can estimate the elevation at which the fo...Ophthalmologists implant five patients with artificial silicon retina microchip
...microchip 2mm in diameter and one-thousandth of an inch thick, less than the thickness of a human hair. Four patients had surgery Tuesday, January 25. The fifth patient is scheduled for a later date. Rush principal investigator Dr. John Pollack performed the surgeries with Dr. Kirk Packo, Dr. Pauline Merr...New tool reveals secrets of migrating cells
...eeliners moving nearly two centimeters - almost an inch - per hour, which is fast in the realm of cell mov.../10 of a millimeter or more than a hundredth of an inch deep. In the current study, Witt limited her viewing to about 200 microns, though she says in some t...Certain fish have a special mating preference
...studies on mosquitofish (guppy-like fish, about an inch long) and found that female mosquitofish spend 80 percent more time with males who have a large gonopodium. "A male with a larger gonopodium has a higher chance of mating, but in a predator environment he has a higher probability of dying," L...Research zeros in on bipolar disorder genes, link with thyroid condition
...o many. By exploring these genetic connections, we inch closer to surer diagnosis and more rational and effective treatments," commented Michael Thase, M.D., professor of psychiatry at the University of Pittsburgh School of Medicine. Held every two years, the International Conference on Bipolar Disorder i...Trio of plant genes prevent 'too many mouths'
...out of action the researchers got dwarf plants an inch high instead of the normal 1 feet. Surprisingly the plants also were so densely covered with stomata that most stomata were touching each other. These genes appear to have roles at two points in the production of stomata. First, they inhibit undiffe...Corn fungus is nature's master blaster
... infinitesimal spore travels only two-tenths of an inch (5 millimeters) before plummeting. Nevertheless, said the biologists, the fungus Gibberella zeae outguns the previous record holder, the fungus Pilobolus, by almost a hundred-fold. It also outperforms a rifle, which launches its bullet with less than...... crab, ranges from one-fifth to three-fifths of an inch in length, and has five pairs of sharp, hooked claws. About 7,500 whale lice live on a single whale. Whale lice infest only whales, just as bird lice infest only birds and human lice infest only people. Recent genetic studies of head and body lice ...AACR-NCI-EORTC international conference
...r. The tiny structure measuring a millionth of an inch across resembles a virus particle that can penetrate deeply into the tumor and move efficiently into cells. Once inside, the nanoparticle, is delivering a deadly payload a p53 gene whose protein helps to signal cells to self-destruct. In this case,...Giant ape lived alongside humans
...rown of the molar, for instance, measures about an inch across helped us understand the extraordinary size of the primate," says Rink. Sample studies further revealed that Gigantopithecus was an herbivore, feasting mainly on bamboo. Some believe that the primate's voracious appetite for bamboo ultimately...Nanoparticles, nanoshells, nanotubes: How tiny specks may provide powerful tools against cancer
... liposome nanoparticle roughly one millionth of an inch across with antibodies peppering the surface that can home in on tumor cells wherever they spread in the body. The liposome encapsulates the p53 gene, which makes a protein that helps initiate a self-destruct process called apoptosis in cells with ge...File compression can expand mammography's power
...lcium deposits, each less than one-hundredth of an inch in diameter. Clues also can range up through the edges of medium-sized objects - which could be benign cysts with smooth edges, for example, or cancerous tumors with rough edges - up to large-scale patterns in tissue fiber. "The edges of tumors are w...Light-sensing cells in retina develop before vision
...30 microns in size -- there are 25,400 microns per inch --and 60 electrodes are contained on a grid. "This spacing turns out to be perfect for a retina," Van Gelder says. "You can remove the retina and place it, ganglion cell-side down, on this array. Then the electrodes pick up the impulses of the gangl...'Virus chip' detects new virus in prostate tumors
...ioinformatics, but in essence it is a simple 3 x 1 inch glass microscope slide. Onto the slide the scientists robotically deposit 10 to 12 different DNA sequences from all known viruses. Each sample appears as a microscopic dot, about a tenth of a millimeter in diameter giving it the name micoroarray. Re......the fish was at liberty 321 days, gaining about an inch in length and moving in a linear distance of 186 miles." This distance record is more than double the previous one of 75 miles (Key Largo to Big Pine Key). It also suggests that bonefish can migrate across the Gulf Stream and perhaps mix with the Ba...Smallest Triceratops skull ever found provides clues to dinosaur's growth
... straight and short in the baby - they're about an inch long - but ended up long and curved forward in the adult, while the nose horn became larger, like that of a rhinoceros, although it was made of bone in Triceratops. The brain case of the baby also changed significantly, he said. Hidden beneath the bo...Junk DNA may not be so junky after all
... scale studies. They are small - only about a half inch in length - they grow quickly, and are relatively inexpensive to maintain compared to mice or rats. "Zebrafish are the only vertebrate embryo you can even think about doing this type of work in," says Shannon Fisher, M.D., Ph.D., the study's first au...Rice bioengineers pioneer techniques for knee repair
...hstand up to an astounding 2,400 pounds per square inch of compressive pressure.......ean eaters have smaller waist sizes three-quarter inch and one inch, respectively The fiber intake of adult and teen bean eaters is more than one-third higher than non-bean eaters "Beans are an excellent source of fiber and previous studies have shown that high-fiber diets may help reduce body weight,...