Tag: "natural" at biology news
Biocontrol of invasive water hyacinth contributes to socioeconomic and health improvements in Africa
...mechanical removal and use of two insects that are natural
enemies of the weed--weevils in the genus Neocheti...e cradle of human evolution. The lake itself is a natural
laboratory of evolutionary biology because of its diverse cichlid fish populations, and it has provi...
Climate change reduces Queensland's bat numbers
...versity. Bats play an important ecological role as natural
insect control agents. They account for almost a quarter of all mammal species and are the only flying mammals. Bats are declining worldwide and any information about their ecology is crucial to their future management Bats are often excluded from p...
Elevated CO2 in atmosphere weakens defenses of soybeans to herbivores
...etles, Zavala said. Zavala also explained, Under natural
field conditions, elevated CO2 not only increased susceptibility of soybean to herbivory by the invasive species Japanese beetle, but also enhanced the performance of these beetles. The investigation also determined the expression of genes that reg...
Illinois researchers presenting at ASPB Annual Meeting in Chicago, July 7-11
...licing variation and allele specific expression in natural
accessions of Arabidopsis thaliana using SNP-tilting array. Rick Williams, also a University of Chicago Ecology and Evolution lab researcher, completed research with several local and nationally-based colleagues on another application using tilting ...
Oldest DNA ever recovered suggests earth was warmer than previously believed
...eath the huge Greenland glacier created a perfect, natural
"freezer" to preserve the prehistoric DNA. Scienti...e warming on the current scale is possible through natural
conditions. However, he cautions that this research does not prove the current global warming tre...
Soil particles found to boost prion's capacity to infect
...and we don't know what the agent is binding to" in natural
or agricultural settings, Aiken says. "We do know that soil is not the only way it transmits. Animal-to-animal transmission is important, too."...
Amoebae control cheating by keeping it in the family
...udent Owen Gilbert's careful field and lab work on natural
D. discoideum clones with exacting studies of gene...w cannot and has not spread in the wild because of natural
relatedness," Queller said. Gilbert said, "Our results answer the big question of why altruism per...
Insects to solve crimes
...ween insects that live in urban areas and those in natural
zones. For example, species found at the Leioa campus but not in Bilbao and viceversa. This could be a significant piece of data to be taken into account if the crime is committed in one place and the body then transferred to another....
'Sundried tide' -- silent, natural disaster
...hallow reef zone." Just like cyclones and other natural
disasters, these severe sun-dry tides' rarely occu...red since they relied on the alignment of numerous natural
extremes, he said. However, when these factors all aligned, by a combination of sun, moon and cha...
Researchers discover method for identifying how cancer evades the immune system
... altered in a tumor to allow it to evade the bodys natural
defenses. In time, the researchers believe such analysis could become a standard practice in cancer diagnosis and treatment. The implication is that once you know the mechanism by which tumors evade the immune system, you can match that tumor to av...
Generalized reciprocity in rats
... be explained by cultural experience as well as by natural
selection. But if similar reactions to anonymous experience can be found in non human animals, an evolutionary explanation would be far more likely. In this study, Norway rats received help gaining food from a partner who pulled a stick to produce ...
JCI Table of Contents -- July 2, 2007
...skeletal and heart muscle undergo as part of their natural
function, its remarkable that muscle cells just dont tear apart. In fact, cell membrane rupture occurs frequently under normal conditions but to prevent cell death cells have developed mechanisms to reseal ruptured membranes. In this issue of the JCI...
Health Physics Society
...imize much of the fear and anxiety associated with natural
and manmade events involving radioactive materials. Using information as a counter-terrorism weapon is the subject of a presentation by Doug Van Cleef ( email@example.com ), an employee of ORTEC, a manufacturer of specialized radiation detecti...
Glimmer of hope for Tahitian tree snails' survival
...s extirpation, they were very conspicuous in their natural
rain forest habitat and Society Islanders used them, in large numbers, to make traditional shell lei jewelry, Foighil said. He said his colleague Jack Burch, also of The University of Michigan, described their collecting in 1970 as being like pickin...
Mother-of-pearl -- Classic beauty and remarkable strength
...a stronger material by preventing the formation of natural
cleavage planes - like those that form the facets ...the fundamental mechanisms of how it forms - these natural
self-assembly mechanisms we are only just beginning to understand."...
Time-lapse recordings reveal why IVF embryos are more likely to develop into twins
...ikely to develop into twins than those created via natural
conception. Furthermore, the research has shown th...ns per thousand deliveries occurred as a result of natural
conception, but many more were born after IVF, even when only one embryo had been transferred to the...
Translating form into function
...ught to divine from an enzymes structure just what natural
molecule triggers the enzyme into action -- fitting into the active site and enabling the enzyme to act as a catalyst. This was a search for the so-called substrate for the enzyme, a search that has never succeeded simply from knowing an enzymes conf...
Doing nature one better: Expanding the genetic code in living mammalian cells
...dies have developed a novel strategy to expand the natural
repertoire of 20 amino acids in mammalian cells, i...e, says Wang, but we couldnt see a difference with natural
amino acids. Adding even bulkier, artificial amino acids provided the answer. Now the process of ina...
The fisherman is a predator like any other
...dmovement strategies similar to those describedfor natural
predators, such as albatrossor seals. Attributes c...ergence found between preysearch by fi shermen and natural
predatorscould change our general perceptionof human activity in marine ecosystemsexploited for fi s...
Desertification: UN experts prescribe global policy overhaul to avoid looming mass migrations
... competition and conflict over the use of land and natural
resources. Among many recommendations, the repor... lack adequate awareness of the fragility of their natural
resource base and, in some places, fail to understand fundamental concepts of "drylands" and "desert...
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