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Polar in Medical News

World Environment Day (International Polar Year)

"As long as the earth endures, seedtime and harvest, cold and heat, summer and winter, day and night, shall not cease." - (Genesis 8:22, The Bible ). Our environment has been under threat for quite sometime now. Needless to say, we, the people, of this planet earth, are to be blame...

iCRco Wins Government CR Contract with United States Coast Guard

...d on the HEALY which is one of the newest and most technologically advanced polar ice breakers. The ship is designed to conduct a wide range of research act...Y is also a capable platform for supporting other potential missions in the polar regions, including logistics, search and rescue, ship escort, environmental...

Morning People and Night Owls Show Different Brain Function: University of Alberta Study

...ugh the spinal cord and brain. They found that morning people's brains were most excitable at 9 a.m. This slowly decreased through the day. It was the polar opposite for evening people, whose brains were most excitable at 9 p.m. Other major findings:   Evening people became physically s...

ORNL finding could help electronics industry enter new phase

...frequency identification) cards. "It is as if we open a tiny door in the polar surface for electrons to enter," Maksymovych said. "The size of this door i...s a one-of-a-kind instrument that can simultaneously measure conducting and polar properties of oxide materials with nanometer-scale spatial resolution under...

Frost & Sullivan Lauds Pioneer Surgical Technology for Development of Tissue Scaffold E-Matrix

...le helical collagen structures and these are further stabilized by adding large carbohydrate molecules. The E-Matrix(TM) monomer contains exposed polar binding sites which can react with host cells thus leading to the growth and repair of tissues. The E-Matrix(TM) bio-scaffold provides an open structu...

ESA launches first Earth Explorer mission GOCE

...acecraft was successfully released into a circular polar orbit at 280 km altitude with 96.7 inclination to ...delling of sea-level change, ocean circulation and polar ice cap dynamics. A unique payload onboard a ...odels. GOCE will also improve our knowledge of the polar cap bedrock in Greenland and Antarctica. The preci...

Old-Growth Forests Dying Off in U.S. West

...ast 50 years. The warming of Antarctica is related to changes in atmospheric circulation and declines in sea ice in the pacific region of the southern polar ocean, the University of Washington researchers concluded. More information For more information on climate change, visit the U.S. Environme...

Joint Mathematics Meetings in Washington, D.C.

...s the overall climate as well as particular aspects, such as the climate in polar regions. SIAM Minisymposium on Mathematical and Computational Challenges...e Society for Industrial and Applied Mathematics.] SIAM Minisymposium on polar Climate Modeling, Wednesday, January 7, 1:00-5:25 p.m., Maryland Suite C, L...

American Lung Association Announces Support of Pickens Plan

... been recognized as a national leader in the acquisition of low-emission vehicles, and our fleets make use of compressed natural gas, hybrid and solar polar and ultra-low sulfur diesel fuel to keep the City running." In announcing their support for the Pickens Plan, the American Lung Association j...

Studies show novel device may enhance chemotherapy treatment in brain tumors

...d tumor growth by generating low intensity, intermediate frequency, alternating electric fields within a tumor. These electric fields exert forces on polar structures within the dividing cancer cells that prevent tumor growth. In pre-clinical and clinical studies to date, the electric fields have shown n...

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Polar in Medical Products

TL-3000B Auto Lensemeter

Description:...clearly visible in virtually all environments and able to change three types of color design. Prism can be displayed in rectangular coordinates, polar coordinates or displacement from the optical center. The Abbe number can be adjusted to examine high index lenses. The results can be printed wi...
Company:Tomey Corp.

MPF cup - Trio (Three Hole)

Features:... A unique triple radius profile, which combines an enhanced peripheral and reduced polar geometry, prevents bottoming out before achieving optimal peripheral fit. This ensures high primary stability in the periphery, where the cup is most ...
Company:Plus Orthopedics

MPF cup - Standard (Zero Hole)

Features:... A unique triple radius profile, which combines an enhanced peripheral and reduced polar geometry, prevents bottoming out before achieving optimal peripheral fit. This ensures high primary stability in the periphery, where the cup is most ...
Company:Plus Orthopedics

MPF cup - Revision (Multi-Hole)

Features:... A unique triple radius profile, which combines an enhanced peripheral and reduced polar geometry, prevents bottoming out before achieving optimal peripheral fit. This ensures high primary stability in the periphery, where the cup is most ...
Company:Plus Orthopedics

2.5V Heine Beta 200S

Features:... 7 apertures, each of which can be combined with a separate interference red-free filter: Blue filter, fixation star with polar co-ordinates, large spot, medium spot, micro-spot, slit and hemi-spot. Ideal conditions for examination of both dilated and non-dilated pupils. Patent...
Company:Heine USA Ltd.

TL-100 Auto Lensemeter

Features:... In addition to the exclusive Auto Add-Lock feature, the TL-100 reads prism in either rectangular (BO/BI, BU/BD) or polar (prism magnitude, axis) coordinates. The TL-100 can be set to measure in 0.25, 0.12, or 0.01D increments, to measure lenses with Abbe values ranging f...
Company:Tomey Corp.

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Polar in Biological News

ESHRE launches international study of polar body screening

Amsterdam, The Netherlands: The efficacy of preimplantation genetic screening (PGS) has been one of the most hotly disputed subjects in assisted reproduction over the past few years. None of the trials carried out so far has shown conclusively whether it works or not. Now the European Society of H...

New tracking approach will help protect polar bears

Kingston, ON A new approach to tracking polar bears, developed by Queen's University researchers, will shed more light on the potentially endangered Arctic animal and help boost the economy of Canada's north. Integrating the traditional knowledge of Inuit hunters with state-of-the-art genetic...

Research plane Polar 5 on Arctic campaign

Bremerhaven, March 24th 2009. The research aircraft Polar 5 belongs to the Alfred Wegener Institute. It will start on Monday March 30th at 10 o'clock from the regional airport Bremerhaven on an Arctic measurement campaign which will last about four weeks. Measurements of sea ice thickness and atmo...

Goose eggs may help polar bears weather climate change

As polar bears adapt to a warming Arctica frozen seascape that cleaves earlier each springthey may find relief in an unlikely source: snow goose eggs. New calculations show that changes in the timing of sea-ice breakup and of snow goose nesting near the western Hudson Bay could provide at least so...

Study of polar dinosaur migration questions whether dinosaurs were truly the first great migrators

EdmontonContrary to popular belief, polar dinosaurs may not have traveled nearly as far as originally thought when making their bi-annual migration. University of Alberta researchers Phil Bell and Eric Snively have suggested that while some dinosaurs may have migrated during the winter season, ...

Experts meet on need for new rules to govern world's fragile polar regions

A new co-ordinated international set of rules to govern commercial and research activities in both of Earth's polar regions is urgently needed to reflect new environmental realities and to temper pressure building on these highly fragile ecosystems, according to several of the experts convening in...

Dartmouth awarded NSF grant for new polar sciences, engineering grad program

The Dickey Center for International Understanding, through its Institute for Arctic Studies, has been awarded nearly $3 million by the National Science Foundation through its Integrative Graduate Education and Research Traineeship (IGERT) program. The five-year grant supports the development o...

Rare Antarctic fossils reveal extinction of tundra before full polar climate arrived

(Boston) An international research team in Antarctica led by David Marchant, an associate professor of earth sciences at Boston University, has reported the discovery of exceptionally well-preserved freshwater fossils including mosses, microscopic one-celled algae, known as diatoms, small fresh wa...

Federal polar bear research critically flawed, says study in INFORMS journal

Research done by the U.S. Department of the Interior to determine if global warming threatens the polar bear population is so flawed that it cannot be used to justify listing the polar bear as an endangered species, according to a study being published later this year in Interfaces, a journal of t...

Vanishing polar ice talk to be Webcast live, April 10

NASA scientist Waleed Abdalati, one of the world's pre-eminent experts on the study of global climate change, will present Dramatic Changes in Earth's Polar Ice: Are We Waking Sleeping Giants? at 7:30 p.m., Thursday, April 10, in the Gore Recital Hall of the Louise and David Roselle Center for the...

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Polar in Biological Technology

UW-Madison Laser Device to Study Polar Ice Caps

MADISON, WI A laser device developed by the University of Wisconsin-Madison Lidar (Light Detection and Ranging) group was used to test NASAs ICESat (Ice, Cloud and Land Elevation Satellite) laser device. Lidars Arctic HSRL (High Spectral Resolution Lidar) instrument was chosen for the test bec...

TSKgel ODS-100Z and TSKgel ODS-100V column series provides a universal solution for the analysis of samples containing acidic, basic, polar & non-polar compounds

Abstract Using high purity Type B silica, Tosoh has introduced two new columns with differing surface treatment procedures and carbon content levels to provide unique selectivities for a wide range of sample types. Int...

Novel Bonding Chemistry Imparts Enhanced Polar Selectivity to TSK-GEL ODS-100V Reversed Phase Columns

Introduction While full coverage C18 phases have been responsible for the growth of HPLC as a reliable high efficiency technique, it has become apparent in recent years that such column types are not suited for reliable analysis o...

Determination of Polar Organophosphorus Pesticides in Aqueous Samples by Direct Injection Using HPLC/MS/MS

A very straightforward method for the analysis of the very polar organophosphorus pesticides (OPs), acephate, methamidophos, omethoate, oxydemeton-methyl, vamidothion, and monocrotophos in water has been developed. Large volume (1 ml) water samples were directly injected onto a RP18 HPLC ...

New 'near-field' radiation therapy promises relief for overheating laptops

...res that the nanotubes' substrate be composed of a polar material such as silicon-dioxide (SiO2), says Rotk...is polar. With this mechanism, if the substrate is polar and if there's a small van der Waals gap, our new ...the energy losses are dissipated directly into the polar substrate and do not contribute to the field-effec...

American Geographical Society awards honor Henson, Smith on April 15 at UD

...University of Delaware will honor past and present polar explorers - of this planet and of Mars. Also re...ity of Delaware's William S. Carlson International polar Year Events, celebrating UD's president from 1946-... Arctic explorer, and the University's significant polar research in the world's fourth International...

Venter Institute Launches the J. Robert Beyster and Life Technologies 2009-2010 Research Voyage of the Sorcerer II Expedition

...s also conducted several sampling trips to Antarctica where they sampled several stratified lakes to understand the microbial diversity in these harsh polar conditions. About the J. Craig Venter Institute The JCVI is a not-for-profit research institute in Rockville, MD and San Diego, CA dedica...

NEXCORE Technology Selected to Manufacture New Endoscopic Cryotherapy Device

...r NEXCORE to manufacture GI Supply's revolutionary polar Wand. polar Wand is a portable device that uses endoscopic cry...product from industrial design to manufacturing. polar Wand distributes a freezing spray to treat bleedin...

Supelco(R) Expands Ascentis(R) Express HPLC Columns Line for High-Speed and High-Efficiency Separations

...Express RP-Amide provides improved selectivity for polar compounds ST. LOUIS, Sept. 3 /PRNewswire-FirstCa...ckpressure. Ascentis Express RP-Amide, an embedded polar group chemistry, provides an alternate selectivity...emistry and the Fused-Core(TM) particle provides a polar column for high-speed and high-resolution separati...

Supelco(R) Introduces Ascentis(R) Express HILIC HPLC Columns for High-Speed and High-Efficiency Separations

...h-resolution analyses on highly polar compounds. "The retention of highly polar compounds such as metabolites has always been a challenge to reversed-phase...ress HILIC enables high speed and high resolution in the analysis of highly polar compounds," said Wayne K. Way, Marketing Manager at Supelco in Bellefonte, ...

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Polar in Biological Definition

Alcohol

...al properties The hydroxyl group generally makes the alcohol molecule polar . Those groups can form hydrogen bonds to one another and to other compounds. Two opposing solubility trends in alcohols are: the tendency of the polar OH to promote solubility in water, and of the carbon chain to resist it. Th...

Amino acid

... specific to each amino acid. Amino acids are usually classified by properties of the side chain into four groups: acidic , basic , hydrophilic ( polar ), and hydrophobic ( nonpolar ). Isomerism Except for glycine , where R = H, amino acids occur in two possible optical isomers , called D a...

Beta sheet

...of the adjacent sidechains on one side of the sheet are hydrophobic, while many of those adjacent to each other on the alternate side of the sheet are polar or charged (hydrophilic). Some sequences involved in a β sheet, when traced along the backbone, take a hairpin turn in orientation (direction...

Biodiversity

...ver lived on earth are today extinct . Biodiversity is not distributed evenly on earth. It is consistently richer in the tropics. As one approaches polar regions one finds larger and larger populations of fewer and fewer species. Flora and fauna vary depending on climate , altitude, soils and the pre...

Bacterium

... have a distinctive helical body that twists about as it moves. Bacterial flagella are arranged in many different ways. Bacteria can have a single polar flagellum at one end of a cell, or they can have clusters of many flagella at one end. Peritrichous bacteria have flagella scattered all over the ...

Biophysics

...Soc. , B 173, 1969, pp. 113-140 Dogonadze R.R. and Urushadze Z.D. Semi-Classical Method of Calculation of Rates of Chemical Reactions Proceeding in polar Liquids.- J.Electroanal.Chem. , 32, 1971, pp. 235-245 Volkenshtein M.V., Dogonadze R.R., Madumarov A.K., Urushadze Z.D. and Kharkats Yu.I. Theory ...

Carnivore

...they are carnivores or omnivores, but wild dogs such as coyotes and wolves etc.) Hyenas and other scavengers Weasels Some skunks polar Bears Birds of prey , including hawks , eagles , and falcons Owls Scavenger birds, like vultures Several species of waterfowl incl...

Bacterium

... have a distinctive helical body that twists about as it moves. Bacterial flagella are arranged in many different ways. Bacteria can have a single polar flagellum at one end of a cell, or they can have clusters of many flagella at one end. Peritrichous bacteria have flagella scattered all over the ...

Flagellum

... space , the rotation of which causes the entire bacterium to corkscrew through its usually viscous medium. Anticlockwise rotation of monotrichous polar flagella thrusts the cell forward with the flagellum trailing behind. Periodically the direction of rotation is briefly reversed, causing what is know...

Cell membrane

...across membranes through diffusion of hydrophobic (non polar) and small polar molecules, or facilitated diffusion of polar and ionic molecules, which relies on a transport protein to provide a cha...
Polar in Biological Dictionary

Terminator region

...ark night side of a planetary body . On Earth, the terminator is a circular line with a diameter that is approximately that of the Earth. Apart from polar regions, the... The Terminator on IMDb: Movies, TV, Celebs, and more... The Terminator (Special Edition) Product Details. Region : 1 (USA, Can...

Subsidiary cells

...y cells are modified by a tangential division, giving two ... Subsidiary cells (4–6) typically elongate, or wedge-like, periclinal walls ... polar and lateral subsidiary cells , overlaps that of ... arching subsidiary cells , and the ends of the guard ... Subsidiary cells each with a ...

Secondary oocyte

... II until fertilization ... with formation of a polar body and a secondary oocyte . ... What ...s one haploid secondary oocyte and the first polar body. ... The secondary oocyte is the largest ...ondary oocyte is produced along with the first polar body as a result of ... Genetically, the seconda...

Reducing agent

..... The pair of an oxidizing and reducing agent that are involved in a particular ... LiAlH4 is a strong, unselective reducing agent for polar double bonds, most ... Acidic Reducing Agents . If you look at the reducing agents above, you will note ... The Relative Strengths of Oxidiz...

Pollen grain

... one ... Each microspore develops by mitosis into a pollen grain . ... that the pollen grain grow a tube ... grain with the egg and polar nuclei is to get pollen ger ... A hard coat covering the pollen grain protects the sperm cells during the ... The pollen grain surfa...

Polar nuclei

... Aspects of the topic polar -nucleus are discussed in the following places at ... unites... ... sperm combines with the two polar nuclei of the large central cell of ... The remaining two nuclei , called polar nuclei , share the cytoplasm of the large ....

Polarity

... affirmative and negative ... In chemistry, polarity refers to a separation of electric charge leading to a molecule having an electric dipole. polar molecules can bond together due to dipole–dipole intermolecular forces between one molecule with... chemical polarity ( ′kemikəl pə′larədē ) ( ...

Polar body

... A polar body is a cell structure found inside an ovum. ...and plant ova possess it. It is also known as a polar cell. polar body n. A minute cell produced and ultimately...

Ootid

...ture ovum after penetration by sperm but before the formation of a zygote ... number of the ootid and spermatid? How does ootid differ from a polar ... ootid ( ) n. A haploid cell that results from the meiotic division of an oocyte and ... number of the ootid and spermatid? How does ...

Molecule

... consists of multiple atoms joined by shared ... polyatomic molecule ... A tutorial on molecule polarity suitable for use by high school ... polar molecule has ... Shapes of Molecules . Electronegativity and Bond Polarity ... A molecule is the smallest particle in a chemical element or c...
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