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Radius

In classical geometry, a radius of a circle or sphere is any line segment from its center to its perimeter. By extension, the radius of a circle or sphere is the length of any such segment. The radius is half the diameter. In science and engineering the term radius of curvature is commonly used as a synonym for radius. More generally—in geometry, engineering, graph theory, and many other contexts—the radius of something is the distance from its center or axis of symmetry to its outermost points. In this case, the radius may be more than half the diameter.The relationship between the radius and the circumference of a circle is r=frac.To compute the radius of a circle going through three points P_1, P_2, P_3, the following formula can be used:

r=frac
where heta is the angle angle P_1 P_2 P_3.Category:Geometryar:شعاعast:Radiu zh-min-nan:Poàⁿ-kèngbs:Poluprečnikbg:Радиусca:Radi cs:Poloměrda:Radius de:Radiusel:Ακτίνα es:Radio eo:Radiusoeu:Erradio fr:Rayon gl:Raio ko:반지름id:Radiusis:Geisli it:Raggio he:רדיוסsw:Nusukipenyolv:Rādiusslb:Radiuslt:Spindulysmk:Радиусnl:Straal ja:半径no:Radiusnn:Radiuspl:Promieńpt:Raioro:Razăqu:Illwaru:Радиусsimple:Radiussk:Polomer sl:Polmersr:Полупречникfi:Sädesv:Radieta:ஆரம்th:รัศมีvi:Bán kínhtr:Yarıçapuk:Радіусzh:半径 Radon Radon is a chemical element that has the symbol Rn and atomic number 86. Radon is a radioactive noble gas that is formed by the decay of radium. It is one of the heaviest gases and is considered to be a health hazard. The most stable isotope is 222Rn which has a half-life of 3.8 days and is used in radiotherapy. Radon is a significant contaminant that affects indoor air quality worldwide. Radon gas from natural sources can accumulate in buildings and reportedly causes 21,000 lung cancer deaths per year in the United States alone. (From the Wikpedia article Radius.)

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Recent Publications on Radius:

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Active Space of Pheromone Plume and its Relationship to Effective Attraction Radius in Applied Models.
The release rate of a semiochemical lure that attracts flying insects has...
28th June, 2008
US Arid-Land Agricultural Research Center, USDA-ARS, 21881 North Cardon J Chem Ecol. 2008 Jun 27;.
DOI Direct Link
Properties of Gamma-Ray Burst Progenitor Stars.
We determine some basic properties of stars that produce spectacular...
28th June, 2008
Astronomy Department, University of Texas, Austin, TX 78712, USA. Science. 2008 Jun 26;.
DOI Direct Link
Efficacy of external tetraethylammonium block of the KcsA potassium channel: Molecular and Brownian dynamics studies.
Blockade of the KcsA potassium channel by externally applied...
28th June, 2008
Research School of Biological Sciences, Australian National University, Biochim Biophys Acta. 2008 Jun 3;.
DOI Direct Link
Role of Methyl in the Phase Transition of Poly(N-isopropylmethacrylamide).
Poly( N-isopropylmethacrylamide) (PiPMA) has one more methyl group at each...
28th June, 2008
J Phys Chem B. 2008 Jun 26;.
DOI Direct Link
Epithelial thickness in the normal cornea: three-dimensional display with Artemis very high-frequency digital ultrasound.
PURPOSE: To characterize the in vivo epithelial thickness profile in a...
28th June, 2008
London Vision J Refract Surg. 2008 Jun;24(6):571-81.

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BioNews Results for Radius:

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Radius selects first preclinical candidate from SARM program for sarcopenia
Pharmaceutical Business Review:  Jun 11 2008 4:41AM Matching: radius
Naturals trend spills over into oral care
Cosmetics Design North America:  Jun 10 2008 6:46PM Matching: radius
Radius Selects First Preclinical Candidate From SARM Discovery Program for the Treatment of Muscle Loss and Ot
Pharma Live:  Jun 9 2008 3:28PM Matching: radius
Radius Selects First Preclinical Candidate From SARM Discovery Program for the Treatment of Muscle Loss and Ot
KOTA Territory News:  Jun 9 2008 4:57PM Matching: radius
Radius Selects First Preclinical Candidate From SARM Discovery Program for the Treatment of Muscle Loss and Ot
Therapeutics Daily:  Jun 9 2008 1:16PM Matching: radius
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Radius Clinical Trials:

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Alendronate Prevents Microarchitectural Deterioration of Trabecular Bone in Early Postmenopausal Women
Osteopenia;   Osteoporosis
Prophylactic Administration of Vitamin C in Wrist Fractures
RSD (Reflex Sympathetic Dystrophy);   Algodystrophy;   CRPS Type I
Dorsal Splint or Circular Cast for Colles’ Fracture?
Colles' Fracture
Electromagnetic Treatment For Bone Loss After Forearm Fracture
Bone Disease, Metabolic;   Osteopenia;   Osteoporosis, Post-Traumatic
Study to Evaluate AMG 162 in the Prevention of Postmenopausal Osteoporosis
Postmenopausal Osteoporosis

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Radius Patents:

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US Patent No.Title
7391759 Method and apparatus for providing wireless communication system synchronization
7391952 Pre-connectorized fiber optic cable network interconnection apparatus
7391953 Capillary tube for holding optical fiber and connecting structure for optical component
7391954 Attenuated optical splitter module
7391955 Optical element and optical element holder

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Companies working in the area of Radius from Bioportfolio's Biocorporate database :

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HPI Clinical Studies Program

HPI Clinical Studies Program (HPI-CSP) is a multi-specialty investigator site organization located in Kingsport and Bristol, Tennessee, an area growing in reputation for providing quality...
www.cellculture.de/        View full profile
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Precision Detectors

Precision Detectors designs and manufactures instruments that use laser light scattering technology to determine certain physical parameters of macromolecules (proteins, polymers, polysaccharides and...
www.precisiondetectors.com/        View full profile
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stationerycupboard

stationerycupboard was established in 1990 by it's founder Julia Gowen.
We specialise in the supply of Office products to our retail customers and our commercial accounts.

We deliver...
www.STATIONERYCUPBOARD.COM/        View full profile
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Wikipedia excerpt, where present, licenced under the GNU Free Documentation License. Resources from the NCBI applied. Selected MeSH subject headings created and maintained by the US NLM are used in conjunction with additional keywords. 2006-2008 MeSH.
 

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