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Peter H. Nash James F. Shurtleff 《Journal of the American Planning Association. American Planning Association》2013,79(3):153-172
Abstract PLAN FOR REZONING THE CITY OF NEW YORK. A Report by Harrison, Ballard &; Allen. City Planning Commission. New York. 1950. 290 pp. maps, illustrations. $2.00. CONTROLLED ACCESS EXPRESSWAYS IN URBAN AREAS—A symposium. Highway Research Board Bulletin No. 25. Washington, D. C., 1950. 45 pages, illustrated. 60 cents. SOCIAL PRESSURES IN INFORMAL GROUPS. By Leon Festinger, Stanley Schachter and Kurt Back. Harper Bros., New York, 1950. x-930 pp. $3.00. PRODUCTION OF NEW HOUSING. A Research Monograph on Efficiency in Production. By Leo Grebler. Social Science Research Council. New York 1950. ix+ 186 pp. $1.75. 相似文献
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Arginine-insulin stimulation and IV glucose suppression (AIGT) tests were used to evaluate release of insulin and growth hormone. Adult patients responded normally. Hypopituitary patients showed no hGH response. One third of short normal patients showed abnormal hGH responses to glucose suppression. Two thirds of the short normal patients showed poor insulin responses to either amino acid or glucose stimulation. Such patients might have abnormalities in release mechanisms for insulin and suppression mechanisms for hGH and this might contribute to their growth failure. 相似文献
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L Venkateswaran JJ Jenkins SC Kaste SA Shurtleff JR Downing AS Pappo 《Canadian Metallurgical Quarterly》1997,19(2):172-175
OBJECTIVE: To identify risk factors associated with complicated eclampsia. METHODS: Twenty-four patients with eclampsia complicated by intracerebral hemorrhage, pulmonary edema, renal, hepatic, or respiratory failure, disseminated intravascular coagulation, abruptio placentae, pulmonary aspiration, or hemolysis, elevated liver enzymes, low platelets syndrome were compared retrospectively with 101 uncomplicated eclamptic controls. Information on maternal demographic factors, medical and obstetric histories, and maternal and perinatal outcomes was retrieved and analyzed by univariate and multivariate analysis. RESULTS: By multiple logistic regression, the only risk factors associated with the development of complicated eclampsia were maternal age over 26 years (adjusted odds ratio [OR] 6.3, 95% confidence interval [CI] 2.17, 18.48), multiparity (adjusted OR 4.5, 95% CI 1.55, 13.60) and no prenatal care (adjusted OR 3.3, 95% CI 1.25, 9.60). CONCLUSION: Maternal age above 26 years, multiparity, and no prenatal care are the maternal risk factors identified for the development of complicated eclampsia. 相似文献
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The development of independence in daily living skills of 256 patients with spina bifida was assessed by means of a new Functional Activities scoring system. The score was derived from nine categories of activity; five are to do with self-care, three with locomotion and one with social interaction. The reasons for the variation in achievement between individuals with the same degree of paralysis are discussed, as are the differences in learning curves for single activities. The scoring system enables a quantitative assessment to be made of the current status of an individual patient, and enables more realistic therapeutic goals to be set. 相似文献
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This commentary examines and reinterprets the concept of relative persistence in drug self-administration studies, described by R. A. Meisch (see record 2000-00465-009), in behavioral economic terms. Over the past several years, investigators in the behavioral sciences have successfully applied consumer demand theory to the study of drug abuse and addiction. The economic concept of demand elasticity (i.e., the changes in the amount of a commodity demanded as a function of changes in price) and the concept of unit price are described in detail, and this commentary shows these concepts provide an alternative interpretation to the relative persistence of behavior. The application of the behavioral economic approach to understanding abuse potential of putative drugs of abuse, in development of medications for drug addiction and in characterizing the transition from drug use to drug addiction, is discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
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Ayres John J. B.; Bombace Joan C.; Shurtleff David; Vigorito Michael 《Canadian Metallurgical Quarterly》1985,11(1):1
A conditioned-suppression procedure was used in 2 studies, with 96 male albino rats, to test the context-blocking hypothesis, the proposition that static apparatus cues, or conditioning contexts, can block conditioning to discrete CSs. Exp I tested for conditioning to the target CS in the same context that had been preconditioned and in which target conditioning had occurred. A context-blockinglike effect was demonstrated. Exp II tested for conditioning not only in the preconditioned context but also in a nonpreconditioned context. Exp II results are consistent with the idea that associative conditioning to a discrete target CS is not independent of the conditioned strength of the context in which target conditioning occurs. Evidence for context blocking was similar in the 2 studies, suggesting that conditioned contexts block the acquisition of associative strength by discrete CSs at the time of target conditioning and not through performance factors at the time of testing. (45 ref) (PsycINFO Database Record (c) 2011 APA, all rights reserved) 相似文献
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Twenty hydrocephalic children with cerebrospinal fluid (CSF) shunts over an 11-year period were seen with Gram-negative central nervous system (CNS) infections. Seventeen infections were with single organisms and three were mixed. Sixteen of 20 (80%) of the infections occurred within five months of shunt surgery. Complete shunt removal or replacement in a new site plus systemic and intraventricular antibiotics resulted in a 100% (9/9) cure rate. Systemic and intraventricular antibiotics alone or in combination with incomplete shunt removal generally were unsuccessful. Significant morbidity and mortality were associated with these infections. Of the 18 patients with follow-up data, seven (39%) died with the infection, four (22%) sustained definite CNS damage, three (17%) were retarded after infection but their preinfection status was unknown, and only four (22%) patients escaped without definite sequela. Early recognition and appropriate therapy, hopefully, will improve the current bleak prognosis 相似文献
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G. B. Stringfellow R. T. Lee C. M. Fetzer J. K. Shurtleff Yu Hsu S. W. Jun S. Lee T. Y. Seong 《Journal of Electronic Materials》2000,29(1):134-139
The use of surfactants for control of specific aspects of the VPE growth process is beginning to be studied for both the elemental
and III/V semiconductors. The objective is to change the characteristics of the material grown epitaxially by the addition
of a surfactant during growth. Most reported surfactant effects for semiconductors relate to some detail of the morphology
of the growing films. For ordered semiconductor alloys the effects can be much more dramatic, including major changes in the
electrical and optical properties. Since the bandgap energy is dependent on the microscopic arrangement of the atoms in an
alloy with a fixed composition, the change in order parameter induced by the surfactant translates into a marked change in
the bandgap energy. This paper presents the results of a study of the effects of n-type (Te and Si), p-type (Zn), and isoelectronic
(Sb) dopants on the ordering process in GaInP grown by OMVPE. All of the dopants studied were found to decrease or eliminate
ordering; however, the mechanisms are quite different. The donor Te apparently affects the adatom attachment kinetics at steps
on the (001) surface, a surfactant effect. On the other hand the donor Si was found to decrease the degree of order by an
entirely different mechanism, attributed to an increase in the Ga and In diffusion coefficients in the bulk. It apparently
does not involve the surface. Disordering due to the acceptor Zn was found to occur by the same mechanism. The isoelectronic
impurity Sb is found to act as a surfactant and to decrease the order parameter by changing the surface reconstruction, eliminating
the [110]-P dimers that provide the thermodynamic driving force for formation of the CuPt structure during growth. 相似文献
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