Tag: "bigger" at biology news

Bottom-up Ecological Processes Better For Clear Waters, Study Finds

...uch as minnows, which inturn are often devoured by bigger fish, such as pike or bass. In the mid-1980s, eco...ocesses. "Both played a role, but nutrients had a bigger impact on algal biomass,"Brett said. The science meta-analysis paper by Brett and Goldman also cast...

Emory Researchers Advance Gene Therapy Studies For Metastatic Melanoma Treatment

...a big difference," adds Ansel. "It may pack a much bigger punch than when it is coursing through the circulatory system." Most clinical gene therapy for melanoma now being conducted around the country treats patients systemically, and results have not been particularly promising. "We are experimenting ...

Where Fossils Fear To Tread: Scientists Follow Genes To An Ancient Ancestor

...es like the land. During the Cambrian, animals got bigger and more diverse, but those changes did not require new genes. The techniques being pioneered by Carroll and others are opening a new window to the past, said Carroll: "It's doing paleontology without fossils."...

E. Coli Genome Reported: Milestone Of Modern Biology Emerges From Wisconsin Lab

...e than 4.6 million bases, it is two or three times bigger than other bacteria sequenced to date. Sequencing of the base pairs that make up DNA is analogous todeciphering a language. It is done with the aid of specialized chemical analysis machines, but can only be accomplished with considerable human effor...

Mapping The Way To A Bigger Prawn

Dreaming of a bigger prawn to throw on the festive barbecue? CSIRO researchers have produced the worlds first prawn gene map, which is the first step in assisting prawn farmers to grow bigger, faster growing prawns in the future. The genetic linkage map will be used ...

Divorce, Insect Style: Termites Swap Mates

...ping termites: Females usually choosea male with a bigger head the second time around, while males go for femaleswith bigger bodies and more lipid (fat) storage area. Big-headed males arebetter at ramming and biting their op...

Transposable Elements May Have Had A Major Role In The Evolution Of Higher Organisms

...cientists, including McDonald, began tolook at the bigger picture, sensing that transposons may be crucially importantto the functioning of all plants and animals. The evidence is only now becoming clear. Two major events in the historyof life were the origin of eukaryotes (multicellular organisms ...

AAAS, State Of Arizona Co-Host Conference On Research And Development

... the average Arizonan? Research funding plays afar bigger role in the present (and future) economy of Arizona than many realize. Consider this:In 1995, the state received nearly a billion dollars in research and development funds, ranking19 th out of the 50 states in such funding. Research and development ...

Link Made Between Human Growth Hormone, Bone Quality In Mice

...ice---with much ofthat size difference coming from bigger bones, according to University ofMichigan researchers. The trade-off for bigger bones in adolescence, however,appears to be poorer bone quality, increased brittleness and less resi...

Eating Less Fat At One Meal May Lead To Higher Fat Intake Later

...takein an attempt to lose weight might be in for a bigger battle than they expected. A new study found that people who ate low-fat or low-carbohydrate lunchescompensated by eating more fat or carbohydrates at other meals. The resultwas that participants consumed similar levels of fat and carbohydrates ea...

New Fossil Discoveries Clinch Ancient Age Of Human Ancestor

...ker explains. "Human males still do have slightly bigger canines, on average, and their enamel is thinner than a female's--a characteristic of male apes, which sharpen their teeth to use as weapons," he adds. Among the new fossils is a wrist bone, which Walker says has the primitive features of a chi...

Gene-Altered Mice Boost Studies of Cardiomyopathy: Enables Research Into Causes And Treatment Of Heart Failure

...hearts beat eight-to-ten times a second and are no bigger than an M&M candy (that's plain, not peanut) the new technology allows sequential monitoring of these mice with echocardiography . This mouse model should "hasten scientific understanding for dilated cardiomyopathy and improve therapy for heart ...

Little Known Protein Prevents Formation Of Kidney Stones In Trace Amounts

...place, therebypreventing the crystals from getting bigger or combining to form a large mass. Calgranulin may also prevent crystals from adhering to renal tubules in thekidneys, a prerequisite for the formation of kidney stones. Pillay and colleagues are investigating how the subunits of cal...

High Carbon Dioxide Levels May Be Killing Insects

...n, Stiling says.Plants in high CO2 conditions grow bigger and faster, but their lower nitrogencontent makes them poorer nutritionally. Author: Kurt Kleiner New Scientist issue 15th August 98, page 10 PLEASE MENTION NEW SCIENTIST AS THE SOURCE OF THIS ARTICLE...

The Evolution Of Beauty, Part Of A Special Section On The Evolution Of Sex In The 25 September 1998 Science

...ize (to betterprotect her and her offspring) and a bigger territory (to provide more food).But there are confounding exceptions: many females have strong preferences formale traits, red feathers, say that don't seem to relate to their offspring'snumber or well-being. One of the most common explanations for...

A Protein Switch May Turn On Heart Cells To Combat Heart Disease

...he heart, myocytes willget bigger. However, these bigger heart cells don't work as well," says W. RobbMacLe...f age the hearts in mice without Rb were 8 percent bigger than the hearts ofmice that still had the Rb gene active in their heart cells. While this represents...

Greater Prairie Chicken Appears On Comeback Trail In Illinois

...r sufficiently large populations," and it raises a bigger questionof just what makes a viable population to assure a species' survival. Co-authorJeffrey D. Brawn agrees: "Viability is really the key word," he said. "This ishow we gauge how self-sustaining a population is. If it is viable, it means itis ...

Laboratory Under Construction

...oconduct the experiments in a volume just a little bigger than the lunch box. Thenew glovebox - with a large pull-out enclosure - will have openings 40 cm (16in) wide to accommodate experiments as large as a carry-on bag, and more thanenough room for astronauts to work around the apparatus. "The beauty of t...

Researchers Discover Why Some Athletes' Performances Fail To Improve On A Live-High, Train-Low Regimen

...eet and 9,000 feet. "What we expect to see is the bigger the increase in EPO, the more red bloodcells you'll make at a given altitude," Levine said. "It's a dose-responserelationship. Think of altitude like a medicine: Get the dose right, and withoutbad side effects, the patient gets better."...

Future Of West Tied To Saving, Not Extracting, The Land

... West has always been tiedto a deeper coal mine, a bigger clear-cut, a greater take from the earth. Butthose boom-and-bust operations have produced more ghost towns than prosperingones. The road to economic stability for the west today, argues a University ofWisconsin-Madison rural sociologist, is one that ...

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