Tag: "detect" at biology news
Tumor Suppressor Gene Located In Liver Cancer Cells
...umor formation or having a handle on how one could detect
these tumors when they're much smaller could have ...utations that might disable it. Using a method to detect
mismatches in genetic material, they compared strands of DNA from tumor cells and surrounding norma...
Photosystem I -- An Intermediate Step -- May Not Be Necessary For Plants
... and after the experiments. Owens was not able to detect
the key PSI protein. Does this mean that PSI is not necessary for normal photosynthesis? Owens gives an emphatic "no." This is just a biological alternative that had not been found until the Oak Ridge experiments. "It doesn't completely replace o...
Automobiles Gain High Technology Noses To Sniff Out Breaches In Air Pollution Laws In Europe Wide Research Project
...t systems are not available because sensors cannot detect
all the atmospheric pollutants. US legislators have found that current car and sensor technology is unable to provide continuous monitoring of the extremely precise air pollution controls they have wish to enact into law - laws which will (i.e. Cali...
Virginia Tech Researchers Receive Patent For Rapid Virus Detection Technology
...edium -- "acellular equivalent of canaries used to detect
gas in mines,"says Hagedorn. Presently, the prese...sy, inexpensive,and highly-sensitive. The test can detect
as few as two virusesin a sample and, because of the specificity of viruses for hosts,the test is qu...
Genetic Alterations Linked To Cancer In Some Blood Samples
...as developed by Sidransky's team and first used to detect
cancer cells in urine. The test uses a series of DNA markers to seek out geneticmutations specific to each patient's cancer. "We decided to test serum samples based on evidence from scientists two decades ago which pointed to increased levels of se...
Human-Like Ability, Categorical Perception, Found In Insects
...prey at 25 to 80 kHz (humans with good hearing can detect
sounds up to 20 kHz). Steering toward the low-fre...hers led by Hoy reported in 1978 that crickets can detect
bats' ultrasound and take evasive action, but those flight studies never answered the question: Wha...
Medicinal Leech May Offer Clues To Neural Regeneration
... was immediately followed by a staining process to detect
the presence of active NOS. Their findings showed that the NOS remained localized to the site of the injury -- never staining beyond the pinch -- indicating that NOS plays an active role at the site where the injury occurs. "We found one particular f...
New Sensor Provides First Instant Test For Toxic E. coli Organism
...e turns red. With the ability to instantly detect
0157:H7, health authorities would have apowerful new weapon to combat what has been a continuing series of outbreaks.These include more than 380 cases of food poisoning and 10 deaths in Scotlandthis month, all linked to tainted meat; more than 60 co...
A Sensor, A Switch, A Zipper: Protein Engineers Design Potential Tool
...ents, their protein may one day be used to detect
environmental toxins or--in a laboratory s.... Additional proteins could be designed to detect
other environmental pollutants--but not quite yet. "The present design binds compounds such ...
Bottom-up Ecological Processes Better For Clear Waters, Study Finds
...Vote counting consists of tallying all studiesthat detect
statistically significant effects and nonsignificant effectsand inferring the generality of the phenomenon, Brett explains. Vote countingis likely to find only large effects -- especially given the nature of ecologicalstudies, which typically use sma...
The CIA Would Like To Know What Scientists Are Seeing Over The Rainbow
...from one chromosome to the next, computers rapidly detect
differences in emission spectra and assign each chromosome its own easy-to-see color. In a spectral karyotype from a healthy cell, for example, computers translate the emission spectrum for chromosome 1 into yellow, chromosome 2 red, 3 gray, 4 turqu...
Laser Microscope At Cornell Images Serotonin In Live Cells
...ges of live cells without using UV illumination to detect
and image cellular activity. "This technique caugh..., called non-linear laser scanning microscopy, can detect
and image the serotonin and measure its concentration and the total neurotransmitter content of indi...
Learning From Birds And Bees: Engineers Study Insects For Ideas On Tiny "Micro Air Vehicles"
...ngs to search for survivors or ontobattlefields to detect
toxic chemicals. "Micro Air Vehicles" capable of these and other tasks are the goalsfor a new program proposed by the <AHREF="http://www.darpa.mil/">Defense Advanced Research ProjectsAgency (DARPA). The technical challenges of building suc...
Ten Years of Progress For Superfund Basic Research Program
... Atomic Spectrometry describing the methodsused to detect
sub-nanogram levels of organotin compounds intheir gaseous form. His research is now being expanded to includeliquid samples and solid samples, which would be useful inanalyzing contaminated waters and harbor sediments. Working at very low levels of ...
A Drug Pump On A Computer Chip
...nt in the flow stream. Two heat sensors downstream detect
this hot spot as it passes by. From this measurement the flow rate can be calculated. The device has been bench tested successfully and is being scaled down for mass production, Huff reported at SPIEs Smart Structures and Materials Symposium in ...
Chemists Compute Answers To The Origin Of Gout
...characterisation of new chemical compounds to help detect
Biosensor Is A Model For Widespread Testing Of Chemicals, Molecules
...ndings. The group's prototype biosensor can detect
the presence of maltose,a sugar compound, in blood, and can switch on a molecule that produces fluorescentlight to signal its catch. With further modifications, the researchers believean array of biosensors can be created to instantly sample a wide v...
Duke Study Shows Early Marrow Transplant Key To 'Bubble Boy' Disease Cure
...curing SCID patients. Newborn screenings can detect
the genetic defect in SCID babies. Withthe mother available as a marrow donor, the life-saving transplant can bedone in the first few days of a baby's life. The patient can receive treatmentas an outpatient or with "observation admission" (23 hours i...
Everyday Technology Underlies First DNA Computer Logic Gates
...or computing have been electronic structures that detect
signals coming from transistors. Ray an... gates -- actually tiny DNA processing centers -- detect
specific fragments of the genetic blueprint as input, then splice together the fragments to form a ...
Huntington's Disease Findings Pave Way For Potential Cure
...ffective treatment. At the moment,a blood test can detect
the HD gene, but there is no cure and no effectivetreatment. In a second study in the current issue of Cell, an internationalgroup led by Eberhard Scherzinger of the Max Planck Institute announce that theyhave found a way to recreate the protein clu...
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