Malaria: Efficacy of monotherapies in Cameroon
...eroon, is therefore highly promising as a tool for tracking the evolution of resistance to monotherapies and thus for helping to improve malaria control strategies. (1) Cameroon, with a surface area of 475 442 km2, is situated deep in the Gulf of Guinea, a region where Central Africa and West Africa meet....Researchers find that bumblebees' flower choice matters
...n. Karron's lab uses several innovative methods of tracking monkey flower mating, and all hinge on where the pollen comes from. Pollen allows the flowers, which contain both male and female reproductive organs, to produce seeds. Plants can only produce seeds from their own species' pollen. The pollen from a...Phoenix rising: Scientists resuscitate a 5 million-year-old retrovirus
...as," says Heidmann. "This work will be helpful in tracking down the role of retroviruses in these human diseases."...Researchers determine why wolves not dispersing as fast as expected in Yellowstone
...ical Biology. The U of A researchers used radio tracking of wolves and computer simulation models to reach their conclusions. The research was published recently in the journal Theoretical Population Biology. "Who would have thought that you could use mathematical equations to understand the behavior of ...Highlights from the November 2006 Journal of the American Dietetic Association
...sociates, Inc. The researchers spent three years tracking the dietary intakes of more than 4,300 students in second through sixth grades at 153 elementary schools. The study looked at the effects of offering "universal-free" school breakfast, or free breakfast to any student regardless of family income, in ...Predicting PET imaging's future: Diagnosing and treating diseases ASAP
...tron-emitting radiopharmaceuticals in patients and tracking the activity distribution with a special camera. While the PET scanner measures the location of radioactive substances in the body, a computer translates the information into images. "Major advances in technology have clearly improved image quality...Group decisions: From compromise to leadership in pigeon homing
... the new study, the researchers used miniature GPS tracking devices to follow the homing flights of pairs of pigeons, where both individuals had their own, previously established preferred routes leading back to the loft. When the birds were released as a pair, and when the two preferred routes were not very ......he high brilliance of the X-ray source enabled the tracking of bone deformation in real time. Researchers could look at two length scales: on one side they observed the 100 nanometers sized fibres, and on the other, the crystallites embedded inside the fibre, which are not bigger than 2 to 4 nanometers. The c...Living view in animals shows how cells decide to make proteins
...f silencers or helper proteins were involved. By tracking the green glow, the team found that cells in most tissues made the same decision to silence exon IIIb, but the cells used a variety of silencers and helper proteins to accomplish this task, said Vivian I. Bonano, a graduate student in the University ......ally to the chromosomes they help to pair. Further tracking showed that during meiosis the HIM-8 and ZIM proteins on each chromosome latch onto the cell's nuclear envelope. This activity is reminiscent of the way chromosomes attach to the nuclear envelope during meiosis in other organisms. "In most eukaryo...New highways carry pathogens and social change in Ecuador
...he organism causing the illness. In addition to tracking the movement and identity of diarrheal diseases, they interviewed all the villagers about their social contacts and built a social network map as a way to measure social cohesion. Social cohesion affects the maintenance of infrastructure, which is re......e sensing tools complement traditional methods for tracking water availability and measuring the productivity of water used in agriculture. Because they often use highquality, public-domain satellite images that are available free of charge from reliable sources such as United States Geological Survey and th...Nanotechnology: The story behind the headlines
...riedman will report her findings from six years of tracking U.S. and U.K. newspaper and wire service coverage of nanotechnology risks, work she did in collaboration with Brenda P. Egolf of Lehigh University. The event and live webcast will take place on Wednesday, December 13th at 10:00 a.m. in the 5th Floo...Extreme life, marine style highlights 2006 ocean census
...ing array achieved more than 95 percent success in tracking salmon, sturgeon, and other fish engaged as Census correspondents. Wider ranges When studying distribution, the surprise of finding a species in a new place is as exciting as the discovery of a new species. A species in a new place may indicate th...Rensselaer licenses microscope technology to Thorlabs
...at can be difficult or tedious for humans, such as tracking moving organisms or processing large numbers of sa...est in the sample, bouncing back and forth between tracking multiple moving objects. This feature could be useful for observing live microorganisms or in monito...Phyloinformatics Hackathon at the National Evolutionary Synthesis Center
...sic biological research, and has applications from tracking the progress of disease epidemics to figuring out how best to conserve endangered populations. Techniques from phylogenetics even have been used to study the relationships among human languages and among medieval manuscripts. Researchers rely on a ...Sniffers show that humans can track scents, and that two nostrils are better than one
...ers zigzagged along the trail in the same way that tracking dogs follow a scent. The researchers then traine...melled. The four subjects were half as accurate at tracking smells under these conditions. Independent measurements showed that a human's two nostrils sample ...Software, evolution and micro-inversions -- improving the building of phylogenetic trees
...onvergent evolution and thus do not play a role in tracking evolution and defining phylogenies. Once the researchers have the microinversion data, they use it to reconstruct phylogenies using an algorithm that attempts to move back in time by iteratively undoing microinversions and bringing the existing speci...History-hunting geneticists can still follow familiar trail
...n of Science validate the approach, which involves tracking sequences of mitochondrial DNA, also known as mtDN...utations enter the genetic code of all species. By tracking similarities and differences of mtDNA, scientists gain insight about the size of groups and how they...University of Colorado influenza chip licensed by Quidel Corp. of San Diego
...our days. Identifying flu strains is critical for tracking emerging strains and helping world health officials combat coming epidemics and pandemics, including bird flu. In addition, the technology will help facilitate the development of preventive vaccines. "We are delighted that Quidel has licensed the ...