Tag: "temperature" at biology news
Secret life of elephant seals not secret anymore!
...st track was 326 days and up to 30,000 profiles of temperature
and salinity were obtained. By simultaneously re...ion to oceanographic features. The measurements of temperature
and salinity collected by the seals show that the seals target very specific water bodies, Dr Rintou...
Nanotechnology helps scientists make bendy sensors for hydrogen vehicles
... detect the presence of 1 percent hydrogen at room temperature
in 3 seconds. Even after bendingwith a bending radius of approximately 7.5 mmand relaxing 2,000 times, the devices still perform with as much effectiveness. ...
ESA mission highlighted at remote sensing conference
...currently sampled on a regular basis. Salinity and temperature
determine the density of seawater, and in turn, de...currently sampled on a regular basis. Salinity and temperature
determine the density of seawater, and in turn, density is an important factor driving the currents ...
Wider buffers are better
... provide benefits such as stream shading and water temperature
maintenance, fish and wildlife habitat, or sediment control; there may be other buffer characteristics more favorable in removing nitrogen. In any case, watershed nutrient management efforts also must include control and reduction of specific and gen...
Instant steam takes on MRSA
...s up to 800 C in just a couple of seconds, at room temperature
and pressure. Steam produced by the technology is so-called dry steam, generated by the highly exothermic reaction between methanol and hydrogen peroxide. While too expensive to replace the vast quantities of steam used routinely by industry, a react...
Isoprene emission from plants -- a volatile answer to heat stress
...ositive correlation has been observed between leaf temperature
and isoprene emission in plants, the physiological role of isoprene emission, which is clearly quite costly to the plant, is still under vigorous debate. One of the most popular hypotheses suggests that isoprene protects the metabolic processes in ...
Surprising new species of light-harvesting bacterium discovered in Yellowstone
...green algae, where there is light and oxygen, at a temperature
of about 50 to 66 degrees Centigrade (122 to 151 degrees Fahrenheit). The organism was found in three hot springs --Mushroom Spring, Octopus Spring, and Green Finger Pool -- in the Lower Geyser Basin, not far from the Old Faithful Geyser. Unexpect...
Innovative research technique reveals another natural wonder in Yellowstone Park
...green algae, where there is light and oxygen, at a temperature
of about 50 to 66 degrees Celsius (122 to 151 degrees Fahrenheit). Unexpectedly, the new bacterium was discovered to have special light-harvesting antennae known as chlorosomes, which each contain about 250,000 chlorophylls. No member of this phylu...
Scientists discover new way to study nanostructures
...y as one approaches the superconducting transition temperature
from below, while their positions do not change. These observations, exhaustive qualitative and quantitative agreement between experimental measurements and theoretical predictions confirm that vibrational motions of the nanowire atoms are indeed the...
Limpets reveal possible fate of cold-blooded Antarctic animals
...biodiversity of Antarcticas unique ecosystem. Sea temperature
is predicted to increase by around 2C in the next 100 years. If cold-blooded Antarctic animals cant grow efficiently, or increase their growth rates, they are unlikely to be able to cope in warmer water, or compete with species that will inevitably m...
Decorated UH professor to help choose nation's top scientists
...He received the award in 1988 for his work on high temperature
superconductivity, making him the only UH professor to earn the honor. The medal represents a token, but significant, gesture in our national commitment to science, Chu said....
Greenland's ancient forests shed light on stability of ice sheet
...lacial period (116,000-130,000 years ago) when the temperature
was 5C warmer than today, contrary to the view currently held by scientists. Professor Dorthe Dahl-Jensen, also at the University of Copenhagen, has shown that in fact, even during this interglacial period, the ice thickness at Dye 3 would have been ...
Oldest DNA ever recovered suggests earth was warmer than previously believed
...ewhere in the world. The DNA samples suggest the temperature
of the southern Greenland boreal forests 450,000 t... influences, and we may be heading for even bigger temperature
increases than we previously thought," Sharp said....
Fossil DNA illuminates life
...metres, and the greater pressure produces a higher temperature
at the base, and so the DNA material, which cannot...certain the climate since each species has its own temperature
requirements. The yew trees reveal that the temperature
during the winter could not have been lower ...
Satellite images reveal link between urban growth and changing rainfall patterns
...hers compared this rapid urban growth with monthly temperature
and precipitation data from 16 meteorological stations. Their analysis revealed a direct correlation between the rapid growth of cities and a decrease in rainfall during the winter dry seasons from 1988 to 1996. ''We found that as the cities get bi...
University of Arizona launches major scientific research initiative at Biosphere 2
...race gases and pH. Inside, the team will control temperature
and rainfall to mimic the environmental conditions right outside the chamber. Just outside the chamber, the researchers will build replicas of the indoor hill slopes and conduct the same experiments. Mimicking the local conditions inside the chamber ...
International team to honor 30th anniversary of deep-sea vent discovery in Galpagos
...ent species have been discovered living in extreme temperature
and pressure conditions, and new vent species are discovered at a rate of nearly two per month, Tyler said. "Vent science has dominated the field of deep-sea biology in the last 30 years," he said. Explorer and author Cindy Van Dover, director o...
Children of smokers have more than 5 times higher levels of a nicotine toxin
... get rid of it. Sleeping with parents and lower temperature
rooms were also associated with increased amounts of cotinine. Cotinine was measured in 100 urine samples taken from infants aged 12 weeks. Seventy one of the babies had at least one parent that smoked and the parents of the other 33 were non-smo...
Giant magnetocaloric materials could have large impact on the environment
Materials that change temperature
in magnetic fields could lead to new refrigeration...r magnetic dipoles in order to reduce a material's temperature
and allow the material to serve as a refrigerant. New materials for refrigeration based on gadoliniu...
Gannet population under threat from global warming
...ural habitats caused partly by an increase in sea temperature
are forcing birds to search further afield in search of food for their young. Usually, one parent will stay with a chick while the other goes out hunting, says Dr Hamer. But if left for long enough, it will eventually leave the nest itself to fin...
1 2 3 4 5 6 7 8 9 10