Wester

Arthur W Wester berg/ Ph D / Swearingen University Professor of Chemical Engineering, Carnegie Mellon University Member, National Academy of Engineering (Optimization)... 

J. de Boer, Q. T. Dao, P. G. Wester, S. Bowadt and U. A. Th Brinkman, Deteimination of mono-ortho substituted cWorobiphenyls by multidimensional gas cliromatography and thek conti ibution toTCDD equivalents . Anal. Chim. Acta 300 155-165 (1995). 

In the latitudes occupied by the US the climate is dominated by westerly winds. The basic wind speed may be adjusted to ensure that the risk of it being exceeded is the same for all directions. This is achieved by the wind speed factor Sa. 

Pcroxycstcrs seldom find use as photoinitiators since photodecomposition requires light of 250-300 nm, a region where many monomers also absorb. This situation may be improved by the introduction of a suitable chromophore into the molecule or through the use of sensitizers.201 "02 The pero wester (50) is reported to have kimi, 366 nm and < i near unity.2,01... 

We thank J. V. Beitz, P. G. Eller, J. P. Hessler, J. G. Malm, R. A. Penneman, J. C. Sullivan and D. W. Wester for experimental collaborations and fruitful discussions. This work was performed under the auspices of the Office of Basic Energy Sciences, Division of Chemical Sciences, U. S. Department of Energy under contract number W-31-109-ENG-38. 

Time scales of transport can also be applied to situations when no well-defined reservoirs can be defined. If the dominant transport process is advection by mean flow or sedimentation by gravity, the time scale characterizing the transport between two places is simply tadv = L/V where L is the distance and V the transport velocity. Given a t)q)ical wind speed of 20 m/s in the mid-latitude tropospheric westerlies, the time of transport around the globe would be about 2 weeks. 

Three regions of the atmosphere are seen to have significant zonal components of flow and thus of advection. The mid-latitude troposphere at the surface tends to exhibit westerly flow (i.e., flow from west to east) on the average. This region contains the familiar high- and low-pressure systems that cause periodicity in mid-latitude weather. Depending on the lifetime of the substances of concern, the motion in these weather systems may be important. 

There is a zonal atmospheric circulation system associated with this normal ocean condition called the Walker Cell (Eig. 10-7). Evaporation rates are high over the warm pool and warm moist air ascends to great heights (deep convection) producing extensive cloud systems and rain. The Walker Cell is closed by westerly winds aloft and subsidence in the high-pressure zone of the eastern Pacific. 

Medaka (Oryzias latipes) DBTC 28-day NOEC (mortality, growth, and behaviour) 1.8 1.8 Wester Canton (1987)... 

Wester PW, Canton JH (1987) Histopathological study of Poecilia reticulata (guppy) after long-term exposure to bis(tri-/7-butyltin)oxide (TBTO) and di-n-butyltindichloride (DBTC). 

Seth RB, Sun L, Chen ZJ (2006) Antiviral innate immunity pathways. Cell research 16 141-147 Shapiro RL, Thior I, Gilbert PB, Lockman S, Wester C, Smeaton LM, Stevens L, Heymann SJ, Ndung u T, Gaseitsiwe S et al. (2006) Maternal single-dose nevirapine versus placebo as part of an antiretroviral strategy to prevent mother-to-chUd HIV transmission in Botswana. Aids 20 1281-1288... 

Lockman S, Shapiro RL, Smeaton LM, Wester C, Thior 1, Stevens L, Chand F, Makhema J, Moffat C, Asmelash A, Ndase P, Arimi P, van WE, Mazhani L, Novitsky V, Lagakos S, Essex M (2007) Response to antiretroviral therapy after a single, peripartum dose of nevirapine. N Engl J Med 356 135-147... 

Yano JK, Wester MR, Schoch GA, Griffin KJ, Stout CD, Johnson EF. The structure of human microsomal cytochrome P450 3A4 determined by X-ray crystallography to 2.05-A resolution. J Biol Chem 2004 279 38091-4. 

Wester RC, Maibach HI. 1987. Percutaneous absorption of organic solvents. In Maibach HI, ed. Occupational and industrial dermatology, 2nd ed. Chicago, IL Year Book Medical Publishers, Inc., 213-226. 

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