Tag: "using" at biology news
Army-funded effort examines androgen's role in bone loss
...rogen therapy, either through androgen replacement using
hormone drugs, or androgen replacement combined with estrogen replacement. "You get a better response with combined treatment than with either steroid alone, which suggests they're doing different things," Wiren said. Selective and...
Dinosaurs in bullet-proof vests
...ndividual plates have a much simpler structure. By using
a polarisation microscope Torsten Scheyer discovered that collagen fibres were interwoven in the bone calcium of the dinosaur's armour plating, forming mats which were interspersed with each other three-dimensionally. Within each mat the fibres were ...
Study in Royal Society journal on evidence for impact of global warming on bird populations
...own model for positive interest rates. We do so by using
techniques from infinite dimensional Gaussian integration inspired by quantum field theory. We then derive a new expression for the price of a zero coupon bond which reveals a connection between Gaussian measures and Ricatti differential equations. C...
Abundance of myostatin in infected swine may result in reduced muscle mass
... in the muscles of infected pigs. "We have shown, using
an infectious disease model where animals grow slowly, that there is an increase in muscle myostatin mRNA." ...
Sick Kids researchers confirm that cancer stem cells initiate and grow brain tumours
...rowth of the human brain tumour in the mouse model using
the advanced imaging technology in the Mouse Imagi... cells, we will then be able to target these genes using
new drugs or genetic-type therapies," said Dr. Sheila Singh, the paper's lead author and Sick Kids n...
Gene expression profiling aids in ovarian cancer prognosis
...-- The identification of a gene expression profile using
microarray technology may help clinicians better determine the prognosis of patients with advanced stage ovarian cancer and may eventually help provide targeted therapies for this hard-to-treat disease, according to a study led by investigators at Be...
Researchers discover defense mechanisms in some plants believed bred out by humans
...ch a way that plants can defend themselves without using
pesticides," Esen said. "Plants have been around for millions of years and defended themselves before chemical pesticides," Esen said. However, because of selection of plant traits by humans, some plants can't even propagate themselves now. Eight ...
Scientists develop 'electronic eye' for the blind
...f a pedestrian crossing in front of a blind person using
a single camera. When combined with two other tech...cted to a tiny computer. It will relay information using
a voice speech system and give vocal commands and information through a small speaker placed near th...
Tiny plant a model for commercially important trees
... genes expressed in wood isolated from Arabidopsis using
technology available at the Virginia Bioinformatics Institute at Virginia Tech. The technology is capable of measuring expression of all 25,000 Arabidopsis genes simultaneously. With this information, Beers and his collaborator Allan W. Dickerman, ...
NASA satellite data to aid global conservation
... good information. Increasingly, these systems are using
geospatial technologies to provide decision-makers with a range of possible options and, in the future, could be used to predict possible outcomes," he said. IUCN is a unique union of more than 1,000 worldwide member organizations. Its mission is to ...
Diamonds are a urologist's best friend
...urrently on the market.' Patients who were treated using
these specially coated stents felt that the procedure was substantially less unpleasant. Moreover, the catheters needed to be replaced less often. Dr. Laube stresses, 'Apart from the aspect of incrustation, the greater comfort for the patient is an i...
Heart responds to fasting by remodeling vital energy-producing components
...een able to open up fresh avenues of investigation using
shotgun lipidomics," Gross says....
Invasive sea squirt alive and well on Georges Bank
...n edge of Georges Bank. Video and photo transects using
the USGS seabed observation and sampling system (SEABOSS) documented the distribution of the tunicate colonies in water depths of 42 to 65 meters (138 to 213 feet). The cruise was conducted aboard the NOAA Ship Delaware II. Scientists will analyze d...
New protein structure may aid in design of therapeutics for autoimmune disease
...nal structure of the catalytic domain of PKCΘ using
x-ray crystallography. "This is the first structure of a PKC at atomic resolution," notes Dr. Somers. "Moreover, the structure reported here was solved in the presence of the high potency protein kinase inhibitor, staurosporine, revealing the structu...
New bulls may revive the Texas state Bison Herd
... Derr said. "The kind of genetic technology we're using
with North American bison ...was first developed f...ed, they will form a model of the kinds of studies using
genetic technology that can be used to preserve, conserve, and reconstruct many other wildlife speci...
'Blind' cells see the light; maybe someday humans will, too
...irst, they mutated the gene for the ion channel -- using
as their starting material the potassium channel f...d the engineered potassium channel to "off" cells, using
cell specific promoters. "If you're using
electrical stimulation, there is no way to selectively del...
Low-carb diet during pregnancy improved triglycerides, fat metabolism in offspring
...lipid metabolism in the offspring was investigated using
a mouse model. Female mice were fed either a standard (CHO-rich) chow diet or a low carbohydrate HFP diet, prior to and during gestation and lactation. All offspring were weaned onto the same chow until adulthood. Although liver cholesterol concentra...
An ear for crime
...ow, a camera-and-microphone surveillance system is using
his insights to recognize -- instantly, and with h... calculates any authenticated gunshot's location - using
the difference in the time the sound arrives at the different microphones on a SENTRI acoustic units...
Are animals as irrational as humans?
...when making decisions people often take shortcuts, using
cognitive heuristics that may lead to economically irrational decisions, with similar claims now showing up in animal behavior studies. In a new study, Cynthia Schuck-Paim, Lorena Pompilio, and Alex Kacelnik question whether irrational decisions hav...
Visualizing the end of the human genome
...omeres by adding DNA to the ends of the chromosome using
its own RNA template. In most cells, telomerase activity is very low after embryonic development, and regulation of telomerase is critical, because too much telomerase activity can promote tumor development. In 2001, Dr. Peter Baumann in Cech's la...
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