Tag: "workers" at biology news
Ants' 'genetic engineering' leads to species interdependency
...ively given up the ability to produce pure-species workers
in favor of the hybrids, thereby becoming complete...ant populations in southern New Mexico, queens and workers
from the same colonies are genetically very different; in both species at the site, only the queens ...
Gorillas in the midst of extinction
... local park rangers on the ground. Currently, park workers
are building a three-foot wall along key park borders to keep out cattle and people seeking to alter the land. NASA now provides free Landsat images, which researchers and rangers are using as base maps for field surveys. "We still have to integrat...
Unusual reproductive behavior of odd ants surprises scientists
...ster ants, hundreds or thousands of sterile female workers
(worker ants are always female and, with a few exc...founding of a new colony, which depends heavily on workers
and only needs one queen: when a queen and male of the same lineage mated, they produced eggs that w...
Transgenic plants remove more selenium from polluted soil than wild plants, new tests show
...aid Banuelos. He noted that every morning trained workers
swept through the fields to literally nip any flowers in the bud, and that netting and buried chicken wire were used to keep wildlife away from the plants. "One of the challenges in developing transgenic plants for remediation is engineering them in...
Melatonin shrinks bird gonads. What does the popular supplement do in humans?
Berkeley -- Shift workers
and travelers who pop melatonin pills to stave off... flights, and is popped nightly by many nightshift workers
to keep alert. Despite claims by supplement manufacturers, however, melatonin has shown mixed result...
Falling canopy ants glide home
...udley, publish an amazing observation: canopy ant workers
(Cephalotes atratus L) jettisoned from branches 30...insects. Eighty-five percent of falling C. atratus workers
glide back to their home tree. Marked ants often came right back to the branch where they started w...
Termites feed through good vibrations
...ect: limiting reproduction potential. Most termite workers
are sterile; they don't breed. However, in drywood termites, workers
can become fertile and develop into breeders when they are isolated from their colony. Few workers
Researching airborne metals in transit workers' bodies
...rking in the subway several hours each day, subway workers
and transit police breathe more subway air than th...he NYC subway system has been of concern to subway workers
and transit police for decades. As one of the largest subway systems in the world, the NYC subway en...
Study: Soap and water work best in ridding hands of disease viruses
... 30 seconds or so, but that's not what health-care workers
usually do in practice, and we wanted to test the products under realistic conditions," she said. Anti-microbial agents were best at reducing bacteria on hands, but waterless, alcohol-based agents had variable and sometimes poor effects, becoming les...
Salk polio vaccine celebrates 50th anniversary
... million schoolchildren. Thousands of health care workers
and other volunteers across the country participated to make it possible. No wonder, then, that millions of anxious Americans held their breath with anticipation when the results of the field trials were announced on April 12, 1955. Under the penetr...
Pediatric burn victims' recovery, diabetes, metabolism aided by fenofibrate (Tricor)
...efinery after an explosion that killed at least 15 workers
and injured dozens more.) Cree said trauma in children "seems to cause problems with fat metabolism, which in turn may cause insulin resistance. This insulin resistance can be ameliorated with 10-14 days of fenofibrate treatment, and it may significa...
PNAS highlights for the week of April 4 - 8
...of them. Ceramic pottery remains suggest that Maya workers
boiled seawater to retrieve salt, and recovery of a wood paddle ties the salt production to river delivery by canoes. The workshops were far from royal Maya leaders in the cities, the author says, indicating an economy more complex than previously t...
National Academies news: Spent nuclear fuel storage
...minimal cost and time, and with little exposure of workers
to radiation, the committee said. It recommended that the costs and benefits of options for implementing the water-spray system should be examined to decide what requirements should be imposed. Such systems may not be needed at plants where spent f...
Clearing the air on airplane cabin air
...tion equipment to protect patients and health care workers
in hospitals from SARS. Advice to the Flying Public Although helpful, Lundquist explains that even state-ofthe-art cabin air filters cannot prevent the possibility of direct person-to-person transmission within the aircraft cabin. Direct contact, ...
Talking robots, green buildings, and shockwave healing
...email@example.com ) found a reduction in the percentage of workers
with hearing problems over time as the industry ad...Lacerda@umontreal.ca ) have obtained evidence that workers
chronically exposed to low levels of carbon monoxide in a noisy environment may also experience hear...
Brown wins major award to improve environment, protect RI health
...small enough that academic researchers, government workers
and community leaders can work together to solve problems. Collaboration makes good economic sense, too." According to the state Department of Environmental Management, about 100 brownfields across Rhode Island totaling nearly 1,000 acres have been r...
Tollbooth ventilation system effective in protecting workers from traffic air pollution
Although there is the potential for tollbooth workers
at the Baltimore Harbor Tunnel to be exposed to hi...onment is doing what it is designed to do--protect workers
from the hazardous environment in which they would otherwise be immersed. It is important to note, h...
Noise and carbon monoxide exposure increases hearing loss according to Universit de Montral study
...re the result of a study conducted with over 8,600 workers
exposed to both noise and carbon monoxide in the w...Safety and Health, Lacerda compared the hearing of workers
exposed to noise levels lower than 90 decibels for 8 hours to another group of workers
exposed to no...
Bee mites suppress bee immunity, open door for viruses and bacteria
... have a variety of infection modes queen to eggs, workers
to food supply, bee to bee, and parasite to bee."...
Racehorses, asthmatics, meatpackers may have similar etiology of airway disturbances
...problems suffered by horses, athletes and cold-air workers
that potentially could lead to progress in understanding the development and perhaps give hints toward cures for asthma and related diseases. Specifically, the Oklahoma State team reported that their research "data are the first to provide a specific...
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