count in Biological News

Boston University biomedical engineers teach bacteria to count

... new sequence of genes that allow the microbes to count discrete events, opening the door for a host of ... to be addressed within synthetic biology: Can you count discrete events?" said Collins, who is also a ... Gene networks that give bacteria the ability to count could become powerful devices in the synthetic ...

Early administration of antiretroviral therapy can improve survival

... clinical guides recommend waiting for the CD4 count to fall below 350 cells per milliliter (L) in ... in the CD4 count. Waiting to treat until the CD4 count was below these levels was also associated with a ... to initiated treatment before the CD4 count falls below 350 cell/L. The new recommended ...

Bonefish census reveals population holding steady

... same thing --we're getting a generally consistent count from year to year, which helps to validate our ... out on October 29, to visually and methodically count bonefish throughout the day. The volunteers, who ... as easy to assess. Bonefish are fairly easy to count on the flats and can be seen as an indicator of ...

Low sperm count may be associated with prenatal testosterone excess

... may be a potential risk factor for low sperm count and motility, according to a new study accepted ... "The majority of disorders affecting sperm count in humans are originated during fetal life," said ... in body weight, scrotal circumference, and sperm count in male sheep born to these mothers compared with ...

Looking through the eyes of a mouse, scientists monitor circulating cells in its bloodstream

... way through the mouse. "We could detect and count circulating cells continuously without drawing ... investigator Charles Lin. The ability to count circulating cells is important in diseases like ... to draw blood samples at various time points and count the number of cancer cells in these samples. But ...

Overfishing and evolution

... of Victoria shows that fish avoid the divers and snorkelers who try to count them. Not all types of fish are equally frightened by the divers, and ... assessment of changes to fish populations depends on being able to count them. Pandolfi emphasized that fish populations must be monitored over ...

The straight poop on counting tigers

... According to the study, researchers will be able to accurately count and assess tiger populations by identifying individual animals from the ... tiger populations in places where they have never been able to accurately count them before." The study took place in India's Bandipur Reserve in ...

Aware, Inc. Announces Preliminary Results of Dutch Auction Tender Offer

... the terms and conditions of the tender offer, and based on the preliminary count by Computershare Trust Company, N.A., the depositary for the tender offer, ... tendered or withdrawn or other variations in the depositary's preliminary count statements regarding the expected number of shares to be purchased, the ...

Gene mutation increases drug toxicity, rejection risk in pediatric kidney transplants

... at higher risk for side effects, including compromised white blood cell count or organ rejection, according to new research. Published online Feb. 18 ... complications (such as diarrhea) or leukopenia a drop in white blood cell count that can put patients at higher risk for infections. In some instances, ...

'Femtomolar optical tweezers' may enable sensitive blood tests

... of force needed to break off the antibodies from the antigens and thus count the number of individual antigens that were bound to the sphere. This in turn can detect and count biological antigens at extraordinarily low "femtomolar" ...

Neurotechnology Releases SentiSight 2.0 SDK Universal Object Recognition Technology

... Among the new features in SentiSight 2.0 are the ability to find and count the number of objects in a scene and the ability to compare and identify ... object is in the scene, identify where the object is located and even count the number of objects in the scene. While SentiSight 1.0 identified the ...

Neurotechnology Releases SentiSight 2.0 SDK Universal Object Recognition Technology

... Among the new features in SentiSight 2.0 are the ability to find and count the number of objects in a scene and the ability to compare and identify ... object is in the scene, identify where the object is located and even count the number of objects in the scene. While SentiSight 1.0 identified the ...

Birdsong not just for the birds

... say what the exact position is with some species. So as to have a reliable count of the territories of indigenous birds it would practically be necessary to send out a whole horde of spare-time ornithologists to count the birds. What is more, since the birds are often hidden in the ...

UCSB researcher leads worldwide study on marine fossil diversity

... of fossils, as others had done before, Alroy and his team set out to count them all, examining 284,816 fossil occurrences. "We only count it where we've actually got it," Alroy said. "Say you're doing biomedical ...

Contraception: progress brings hope for new methods for men

... over their fertility. They're looking for something they can really count on." Among the developments announced at the conference: ... matched more expensive laboratory tests in detecting whether men's sperm count is above or below 200,000-300,000 per millileter, an extremely low number ...

Spring cold snap helps with stream ecosystem research

... a member of the Environmental Sciences Division. In this case, a freeze caused the Walker Branch stream to prosper, but an ecosystem cannot count on unexpected weather events to maintain productivity. "The stream ecosystem cannot depend on an Arctic air mass moving in every year, killing the ...

New theory gives more precise estimates of large-scale biodiversity

... for larger and larger areas - a power-law rise with the number of species proportional to the power of the area. "You can sample an area and count the number of species, and then double the area and find more species, but not twice as many, because the species overlap," Harte said. He and ...

Spontaneous assembly

... sufficiently low, researchers can photoactivate individual proteins. "Since individual proteins are imaged one at a time, we can localize and count them, and then computationally assemble the locations of all proteins into a composite, high-precision image," said Liphardt. "With other ...

New, less invasive genetic test greatly improves pregnancy rates in older women with poor prognosis

... more pregnancies with the help of this technology in the future." The scientists used the Comparative Genomic Hybridisation (CGH) technique to count the chromosomes in each egg. Unlike conventional screening strategies, using the fluorescent in situ hybridisation (FISH) method, which allows less ...

Corals stay close to home

... overfishing threaten to darken this picture considerably. These factors heavily stress corals, and thus put both the countless marine organisms that count on corals for habitat and shelter, and the $1 billion dollar tourism industry fueled by coral reefs at significant risk. Conservation biologists ...

Research vessel Polarstern starts 24th Arctic season

... examinations are meant to deliver new insights into the geological history of the East Greenland shelf. Researchers from Belgium will also count birds and whales in the framework of a long-term project to document their distribution, just like in the first journey stage. RV Polarstern is ...

Aware, Inc. Announces Final Results of Dutch Auction Tender Offer

... shares accepted for purchase represent approximately 15% of Aware's outstanding shares of common stock as of April 22, 2009. Based on the final count by Computershare Trust Company, N.A., the depositary for the tender offer, a total of 3,500,252 shares of common stock (including shares tendered by ...

Live-in domestics: Mites as maids in tropical rainforest sweat bee nests

... lab at the University of Texas, Austin. Biani placed the contents of the brood cells in water and plated the liquid on Petri dishes in order to count the number of fungal colonies from nests with and without mites. "When we took away the mites, the bee nests got dirtier. When we added mites, fungus ...

Lancet study supports new, highly effective treatment for blood disorder

... Promacta achieved platelet counts at or over 50,000 per L of blood, compared with 16 percent of subjects in the placebo group. A safe-level platelet count is between 30,000 and 50,000 per L of blood. Promacta subjects were almost 10 times more likely to reach the target platelet counts as the placebo ...

World's top minds to celebrate 'the birth and life of beginnings'

... of jazz trumpet at The Florida State University who has drawn widespread acclaim through his collaborations with jazz luminaries such as the count Basie Orchestra, Wynton Marsalis and the Marcus Roberts Quintet. In a two-hour concert and lecture titled "The Origin & Evolution of Jazz: A Tribute ...

Cleaning the atmosphere of carbon: African forests out of balance

... can't be a sink forever. Trees and forests just can't keep getting bigger. Tropical forests are buying us a bit more time right now, but we can't count on them to continue to offset our carbon emissions in the future." ...

Scientists study full protein content of 'baker's yeast'

... by using new proteomic technology. Professor Rob Beynon, from the University's Proteomics and Functional Genomics Group, explains: "Our goal is to count the number of proteins inside a cell, to provide the essential link between genes and the proteins that they specify. To do this, we developed a new ...

New computational technique allows comparison of whole genomes as easily as whole books

... of different organisms focus on a small set of genes that the organisms being compared have in common. The genomes are then lined up in order to count the sequence similarities and differences, from which a computer program constructs a family tree, with near relatives assumed to have more similar ...

How do cells count?

... and Mnica Bettencourt Dias, working with researchers at the universities of Cambridge, UK, and Siena, Italy, unravelled the mystery of how cells count the number of centrosomes, the structure that regulates the cell's skeleton, controls the multiplication of cells, and is often transformed in ....

Girls have superior sense of taste to boys

... not dramatic, but it is quite clear. It is also a known fact that women generally have a finer sense of taste than men. "We also asked the pupils to count 'taste buds' or organs of taste on the tongue. However, the experiment showed that boys and girls have largely the same number of taste buds. So it ...

First at-home test for vasectomized men proves to be safe, accurate

... to the World Health Organization Manual on Semen Analysis, normal sperm counts range from 20,000,000/ml to as high as 200,000,000/ml. When the count is below 1,000,000/ml, there is only a remote chance of achieving pregnancy without assisted reproductive techniques such as intra-uterine ...

Biosolids microbes pose manageable risk to workers

... downwind of biosolids application sites at various locations within the United States. Coliform bacteria, coliphages, and heterotrophic plate count (HPC) bacteria were enumerated from air and biosolids at each site. Concentrations of coliforms relative to Salmonella and concentrations of ...

Structures of important plant viruses determined

... on the number of molecules in each "turn" of the spiral-shaped structure. That is, it doesn't tell you the shape of the molecules but it can count them. "STEM measures the number of electrons scattered from a length of filament, thereby 'weighing' the segment relative to a standard in this ...

To your health: EPA announces safe drinking water research

... in water. Woods Hole Oceanographic Institution, Woods Hole, Mass., $508,494 to establish fiber-optic genosensors that can rapidly detect and count multiple species of cyanobacteria in both laboratory and field settings. ...

Carnegie Mellon MRI technology that non-invasively locates, quantifies specific cells in the body

... "With our technology we can image specific cells in real-time with exquisite selectivity, which allows us to track their location and movement and to count the apparent number of cells present. We then use conventional MRI to obtain a high-resolution image that places the labeled cells in their ...

Study shows continued spread of 'dead zones'

... on bottom life in a tributary of Chesapeake Bay near Baltimore. His first review of dead zones in 1995 counted 305 worldwide. That was up from his count of 162 in the 1980s, 87 in the 1970s, and 49 in the 1960s. He first found scientific reports of dead zones in the 1910s, when there were 4. ...

Studying volcanoes with balloons

... or interfering with Hilo or Kona airports. This flight landed in a macadamia nut tree plantation. The Google Earth images were so clear "we could count the rows of trees to find the balloon," Durant said. They also managed to land the balloon close to a major highway. "It sure beat slugging it out ...

Wildlife Conservation Society discovers 'Planet of the Apes'

... work carried out by the Bronx Zoo-based WCS and the Government of Republic of Congo, where researchers combed rainforests and isolated swamps to count gorilla "nests" to accurately estimate the population. Gorillas construct nests each night from leaves and branches for sleeping. Population ...

Killer pulses help characterize special surfaces

... Seong came up with a way to measure the distribution of site enhancements on the substrate surface. Using killer laser pulses, their technique can count how many molecules are sitting in the hottest spots, how many are sitting in the coldest spots, and how many are sitting between the two extremes. ...

Smithsonian coral biodiversity survey of Panama's Pearl Islands

... the region. They counted a total of 57 coral species: 19 hard (scleractinian) corals and 38 soft corals (octocorals). For comparison, the species count for Panama's Pacific biodiversity hotspot in the Gulf of Chiriqui is 74, whereas near Cao Island Biological Reserve, Costa Rica's hot spot, there are ...