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drift in Medical News

Kashi Company Expands With New Island Vanilla(TM) Biscuit Cereal

...porated cane juice crystals that are infused with organic vanilla extract. Within the rugged wheat layers are finely ground vanilla beans that gently drift loose while floating in milk. Just like Kashi's other Organic Promise woven biscuit cereals Autumn Wheat (R) and Cinnamon Harvest (R), Kashi...

America's Beauty Show Challenges Toxic Salons

...posure to them poses hidden dangers to clients, and much more so their stylists. Stylists, particularly in small hair and beauty salons, tend to drift in and out of their jobs. So formal long-term studies to investigate dangers to their health, known as epidemiological, are not feasible. Moreover,...

Researchers solve mystery of deep-sea fish with tubular eyes and transparent head

...f the most common are siphonophores (colonial jellies) in the genus Apolemia . These siphonophores grow to over 10 meters (33 feet) long. Like living drift nets, they trail thousands of stinging tentacles, which capture copepods and other small animals. The researchers speculate that barreleyes may maneuv...

Finesse Announces TruDO Optical Autoclavable Sensors for Bioprocess Applications

...phase fluorimetry to measure dissolved oxygen. Their optical approach provides three key benefits: faster measurement response time, minimal long-term drift and lower cost. TruDO Optical sensors reduce operating costs because they do not require polarization or electrolyte solution. They also lower capital...

Scientists, Physicians, Health, and Environmental Justice Advocates to New Obama EPA Director: 'We Look Forward to Toxic Chemical Regulatory Reform'

...nol A is in food containers we use every day is a prime example of why we need to overhaul how chemicals are regulated." "Toxic chemicals can drift thousands of miles North from where they are produced and applied," says Pam Miller, biologist and director of Alaska Community Action on Toxics . ...

Drivers distracted more by cell phones than by passengers

... David Strayer and Monisha Pasupathi. The study, which used a sophisticated driving simulator, found that when drivers talk on a cell phone, they drift out of their lanes and missed exits more frequently than drivers conversing with a passenger. The findings are being released Monday, Dec. 1 by t...
drift in Medical Technology

Ion Mobility Diagnostic Test from Quest Diagnostics is First to Provide Direct Physical Measurement of Lipoprotein Particles, Cardiovascular Disease Indicators, Study Finds

... The new technique uses the principles of ion mobility to provide direct measurement of particles. Ion mobility determines particle size based on the drift velocity of ion-charged particles as they pass through a layer of air under the force of an electric field. Ion mobility, which is commonly used to an...
drift in Medical Products

STELLAR Series Surgical Lighting

Features:...420,000 lux) Triple Lightheads or up to 27,000 footcandles (290,000 lux) Dual Lightheads Glare Reducing Soft White Light Featherlight Maneuverability, drift Free Performance Single Yoke Balance Mechanism 360 Degree movement at all points of rotation 90 Degree Downward Travel for Low Angle Lighting Requirem...
Company:Skytron

NAUTILUS Series Fixed Focus Lighting

Features:...el for low angle lighting requirements, 20 degree upward travel for taller surgeons High Intensity, Cool Beam Temperature Excellent Maneuverability, drift Free Performance Bulb life is 1,000 hours, protected by Skytron's Sof-start system Wall Mounted Intensity Control with Highly Visible Reserve Bulb C...
Company:Skytron

FilterWire EZ Embolic Protection System

Features:...r frame is designed to ensure reliable wall apposition in vessels of varying size/shape. Nitinol wire loop allows 360 apposition, reducing particle drift between filter loop & vessel wall. NEW Suspended Loop Design: Allows the filter to be placed in both straight and curved vessels. Help...
Company:Boston Scientific Corporation

ECT WS2000

Features:... ECT 12 Transmitter Leads: 12 leads, acquired simultaneously and continuously Filters: drift filter, muscle tremor filters Transmission: saturation by infrared beams Power Supply: 1 alkaline battery, 9 V Size & Weight: 90 x 155 x 35 mm; 2...
Company:CARDIOLINE

Benchmark Microplate Reader

Features:...oplate reader with such high performance Single- and dual-wavelength read times of 7 and 15 seconds. Auto-calibration before each reading to minimize drift and channel-to-channel variation Incubator temperature accuracy of 0.5C, with a design that eliminates edge effect, condensation and sample evaporati...
Company:Bio-Rad Laboratories
drift in Medical Dictionary

Weakness

...... Do you really think it is weakness that yields to temptation? ... If America shows uncertainty and weakness in this decade, the world will drift toward tragedy. ... Free reference information from The NY Times on symptoms and their causes, home care, the doctor visit, exams and tests, as we...

Mutation

... Mutation rates in ... Mutations are permanent, transmissible changes to the genetic material (usually ... Mechanisms: selection - genetic drift - gene flow - mutation ... SoftGenetics, software powertools that are changing the genetic analysis ... Mutation Surveyor, available in tw...

Burn

... in the free online English dictionary and encyclopedia. ... by fire or heat: burn a hole in the ... burn the/one's candle at both ends ... drift n Burn 365, a Sports Game from AddictingGames: Drive a New Track Every Day. Provides assistance, information and support to burn victims. ...
drift in Biological News

American Chemical Society's Weekly Presspac -- June 17, 2009

...e in their bodies. Barely one-third of a strand of hair in diameter, diatoms flourish in enormous numbers in oceans and other water sources. They die, drift to the seafloor, and deposit their shells and oil into the sediments. Estimates suggest that live diatoms could make 10−200 times as much oil pe...

Researchers gain genome-wide insights into patterns of the world's human population structures

...uman population structure. "The genome-wide distribution of these markers," Akey believes, "can largely be accounted for by genetic drift." Genetic drift is gradual accumulation of random changes in the gene pool of small populations. Akey added that some of these variations, however, do cluster in regi...

Predators ignore peculiar prey

...e of variation is a classic paradox in evolution because both selection and drift tend to remove variation from populations. If one form has an advantage, such as being harder to spot, it should replace all others. Likewise, random drift alone will eventually result in loss of all but one form when there are no ...

Separating the good from the bad

...respect to their ability to forage for food, since chiral effects make them drift off-course. But it is also important for several industries that rely upon ...spira into the center of the microfluidic device and demonstrated that they drift off-course in a direction dictated by their chirality. But the researc...

MIT: How you feel the world impacts how you see it

... the classic waterfall illusion, if you stare at the downward motion of a waterfall for some period of time, stationary objects like rocks appear to drift upward. MIT neuroscientists have found that this phenomenon, called motion aftereffect, occurs not only in our visual perception but also in our tacti...

Making a point: Picoscale stability in a room-temperature AFM

... backwards to a detector. Any lateral vibration or drift of the sample shows up at the detector as a motion...ith the second beam is used to detect vibration or drift in the probe tip, with the added complication that...In imaging applications, they showed the long-term drift at room temperature was a mere 5 picometers per mi...
drift in Biological Technology

Nikon Instruments Perfect Focus System Wins Second Place in The Scientist's Top Innovations of 2008 Award

...e past year, acknowledges Nikon's exclusive PFS system for its unique ability to provide real time focus correction. Designed to combat focus drift caused by thermal and mechanical effects, PFS is a hardware component that helps address some of the challenges inherent in live-cell, time-lapse imag...

Sensorin Raises Equity Financing to Launch Novel Industrial Sensing Venture

...n-line pH measurement without calibration, without drift and without fouling during extended periods of cel...y referenced approach that is self-calibrating and drift free and does not foul in cell culture, the Sensor...rnally referenced, self-calibrating system without drift is advantageous. The Sensorin system is solid stat...

Nikon Instruments Launches New Eclipse Ti-E Fully-Integrated, Motorized Inverted Microscope

...n, and a unique optical offset system, focus is maintained during long-term, time-lapse observation or even when reagents are added, eliminating focus drift caused by thermal differences. Other key features of the updated PFS include 52 objective choices and an expanded fluorescence spectral range of 340-7...

The sea ice is getting thinner

... for the first time during this International Polar Year. They are able to drift freely in the Arctic Ocean whilst collecting data on currents, temperature,...ure trace elements from Siberian rivers and shelf areas, that through polar drift are being pushed towards the Atlantic. ...

Better collaboration urged to further Wisconsin biotech

...cts 150,000 jobs will be created nationally over the next decade in biotech and related fields. "Wisconsin needs to capitalize on that, and not let it drift outward to places like California." In the area of stem cell research, that's already happening, he said. The Geron Corporation of Menlo Park, C...

Building the modern public-purpose university' should be UW System's goal

...ant higher education system. But they're alarmed about the almost unnoticed drift away from 140 years of federal and state policy, dating back to Abraham Lin...ctions are distinct from private supported functions. Swim, rather than drift or drown, in a newly competitive educational environment with private and f...
drift in Biological Products

D-2000-DUV with integrated shutter from Ocean Optics

Description:...ource are available, providing a wavelength range of 190-400 nm. This powerful and stable lamp provides peak-to-peak stability of less than 0.005% and drift of only +/-0.5% per hour. Features: UV Coverage. Covers spectral range of 215-400 nm and has deep-UV option for 190-400 nm • Shutter Option. Op...
Company:Ocean Optics

D-2000 with integrated shutter from Ocean Optics

Description:...ource are available, providing a wavelength range of 190-400 nm. This powerful and stable lamp provides peak-to-peak stability of less than 0.005% and drift of only +/-0.5% per hour. Features: UV Coverage. Covers spectral range of 215-400 nm and has deep-UV option for 190-400 nm • Shutter Option. Op...
Company:Ocean Optics
drift in Biological Definition

Genetic drift

Genetic drift is a mechanism of evolution that acts in concert with natural selection to change the characteristics of species over time. It is a stochastic effect that arises from the role of random sampling in the production of offspring . Like selection, it acts on populations , al...

Allele frequency

...ght lead to changes in the distribution and frequencies of alleles -- in other words, to evolution . Besides selection, these forces include genetic drift , mutation and migration . Compare genotype frequency . Example If there are ten individuals in a population and at a given locus there a...

Antigenic shift

...t may be highly dangerous. Antigenic shift is contrasted with antigenic drift which is the natural mutation over time of known strains of influenza (or...er things, in a more general sense) to evade the immune system. Antigenic drift occurs in all types of influenza including influenza A, B and C. Antigenic ...

Biology

...articulating its driving force: natural selection . ( Alfred Russell Wallace is commonly recognized as the co-discoverer of this concept). Genetic drift was embraced as an additional mechanism in the so-called modern synthesis . The evolutionary history of a species —which tells the characteri...

Diffusion

...nductors . Charge carriers (usually electrons ) move randomly in the absence of an electric field . When an electric field is applied, carriers drift preferentially in the field, causing a net current. The rate of transport is governed by the electrical conductivity of the conductor and the elect...

Evolution

...ifferent mechanisms: natural selection , genetic drift or changes in population structure ( gene flow )....s 1.3.1 Natural selection 1.3.2 Genetic drift 1.3.3 Gene flow 1.4 Microevolution and ...fically, the frequency of an allele: Genetic drift Gene flow Natural selection Na...
drift in Biological Dictionary

Genetic drift

Genetic drift or allelic drift is the change in the relative frequency with which a gene variant (allele) occurs in a population due to random sampling and chance: the alleles in offspring are a random sample of those in the... genetic drift n. Random fluctuations in the frequenc...

Random mating

...of ... Random Mating ... Non- random mating can give an advantage to ... Chapter 6. Mendelian Genetics in Populations II: Migration, Genetic drift and Non- Random Mating ... If mating is random , F=0. If all reproduction is by self ... size of a random - mating population of dioec...

Linkage equilibrium

...Linkage can persist for some time while equilibrium is being approached. Random sampling will disturb linkage equilibrium (analogous to the way drift ... 7 Linkage disequilibrium measure, D. 8 Explained why D goes to zero ... section at the top on Linkage EQUILibrium , this should give good ...

Heterozygosity

... in increased stability during development and thus in lower asymmetry. ... level, where mean heterozygosity within a population is ... Genetic drift refers to the net decrease in genetic variability and heterozygosity over time. ... Heterozygosity is the degree to which an individual or ... ...

Genetic variance

..... lead to changes in the genetic variance of that trait, irrespective of changes in variation in ... because it erodes genetic variance , drift will scale G ... Additive and Dominance Genetic Variance of Fertility by Method and ... Genetic variance computed by usual models is quit...

Gene frequency

...ll alleles at the genetic place (locus) in a population. It... Genetic drift or allelic drift is the change in the relative frequency with which a gene variant (alle...
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