منابع مشابه
Errors in measuring water potentials of small samples resulting from water adsorption by thermocouple psychrometer chambers.
The adsorption of water by thermocouple psychrometer assemblies is known to cause errors in the determination of water potential. Experiments were conducted to evaluate the effect of sample size and psychrometer chamber volume on measured water potentials of leaf discs, leaf segments, and sodium chloride solutions. Reasonable agreement was found between soybean (Glycine max L. Merr.) leaf water...
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Both individual experiences and community characteristics influence how much people trust each other. Using individual level data drawn from US localities we find that the strongest factors associated with low trust are: (i) a recent history of traumatic experiences; (ii) belonging to a group that historically felt discriminated against, such as minorities (blacks in particular) and, to a lesse...
متن کاملMorphologic heterogeneity in left ventricular noncompaction resulting in accessory left ventricular chambers.
Left ventricular noncompaction (LVNC) is thought to be a rare type of cardiomyopathy likely because of the arrest of myocardial compaction during the fifth to eighth weeks of gestation. The early myocardium consists of deep trabeculations along the endocardium, made of a spongy meshwork of myocardial fibers, that compact to form the capillary network and myocardium of the mature heart, normally...
متن کاملContamination of ionization chambers by talcum powder.
This is a word of caution to anyone using ionization chambers protected by thin rubber sheaths in water. Four Farmer-type ionization chambers contaminated with talcum powder were received for calibration by the Accredited Dosimetry Calibration Laboratory at the University of Texas M. D. Anderson Cancer Center. The chambers show a marked energy dependence (5% to 20%) to soft orthovoltage x rays....
متن کاملStochastic Permanent Breaks by Robert F . Engle
1 This paper aims to bridge the gap between processes where shocks are permanent and those with transitory shocks by formulating a process in which the long run impact of each innovation is time varying and stochastic. Frequent transitory shocks are supplemented by occasional permanent shifts. The stochastic permanent breaks (STOPBREAK) process is based on the premise that a shock is more likel...
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ژورنال
عنوان ژورنال: Alberta Law Review
سال: 1997
ISSN: 1925-8356,0002-4821
DOI: 10.29173/alr1025