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61.
Zusammenfassung Es wird über Fettbilanzuntersuchungen bei 9 Frühgeborenen und 3 jungen Säuglingen berichtet. Die Fettausscheidung im Stuhl bei Kuhmilchfett und einer Nahrung mit teilweise ausgetauschter Fettkomponente wurde verglichen. Es ergab sich, daß bei 10 der 12 Säuglinge die Resorption des Kuhmilch-Pflanzenmischfettes z. T. deutlich höher liegt als bei gleicher Menge Butterfett.Unter Mitarbeit von Fräulein H. Baunach und Frau U. König.  相似文献   
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This comment addresses a set of phenomena that have been labeled 'response shift'. We argue that many of these phenomena reflect recalibration of a goal-seeking system and an affect-management system, both of which are involved in normal adaptive self-regulation. In brief, we hold that these systems act as feedback control mechanisms. The reference values for both systems continuously undergo gradual recalibration. Because in most circumstances the adjustments tend to occur with equivalent frequency in both directions, their cumulative effect is minimal. In situations of either unusually prolonged goal attainment (and overattainment) or unusually prolonged adversity (as occurs, e.g., with deteriorating health), the cumulative effect can be substantial. We believe that these latter recalibrations of reference value account for many response shift phenomena. Other such phenomena are accounted for by the principle of hierarchical organization among the self-regulatory goals that comprise the self.  相似文献   
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Of 1,118 patients with COVID-19 at a university hospital in Switzerland during October 2020–June 2021, we found 83 (7.4%) had probable or definite healthcare-associated COVID-19. After in-hospital exposure, we estimated secondary attack rate at 23.3%. Transmission was associated with longer contact times and with lower cycle threshold values among index patients.  相似文献   
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A variety of cognitive and behavioral self-management skills have been posited as protective in terms of adolescent substance use. This study examined whether these skills measured in the 7th grade served a protective function in 9th grade substance use across ethnically diverse samples of adolescents. Participants consisted of Black (n = 461) and Hispanic (n = 320) urban youth and White suburban youth (n = 757). Structural equation modeling indicated that a second order Self-Management Skills latent factor consisting of first order latent factors of Decision-Making, Self-Regulation, and Self-Reinforcement skills was protective for adolescent substance use across racial/ethnic subgroups. However, Self-Management Skills were more strongly protective for suburban White youth and less protective for urban minority youth. These findings are consistent with previous research showing that predictive power of risk and protective factors derived from psychosocial theories varies widely across racial/ethnic subgroups of youth and is weaker among racial/ethnic minority youth compared to White youth. An important next step is to broaden the focus of etiology research from individual-level determinants to studying adolescent substance use behavior in the context of the cultural background and primary social settings of young people, such as family, school, and community environments.  相似文献   
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This article addresses the role played by adaptive self-regulation in protecting older adults’ psychological and physical health. A theoretical model is outlined illustrating how common age-related challenges (i.e., physical challenges and life regrets) can influence older adults’ health. In addition, the proposed model suggests that older adults can avoid the adverse health effects of encountering these problems if they engage in adaptive self-regulation. Finally, this article reviews recent studies that examined the adaptive value of self-regulation processes for managing physical challenges and life regrets in the elderly. The findings from cross-sectional, longitudinal, and experimental studies document the importance of adaptive self-regulation for maintaining older adults’ health.  相似文献   
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The incidence of fetal portosystemic anastomoses is unknown, and it is presumed that many cases remain undetected, as visualization of the hepatic vasculature is not part of the routine 20‐week sonographic scan in pregnancy. However, portosystemic anastomoses are associated with fetal growth restriction due to a diminished oxygen supply to hepatocytes and, hence, downregulation of liver function. In these cases, uteroplacental perfusion might be normal.  相似文献   
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theory of rational behavior suggests that economic factors play an influential role in the decision leading to drug consumption and possibly dependence. Psychological models, on the other hand, emphasize internal regulatory cues that motivate drug use and play a contributory role in dependence. Until now, the confluence of both economic and psychological models has not been tested empirically. The present study used latent-variable structural equation modeling (SEM) to examine the influence of both economic (social anomie, unit price, and time spent acquiring drugs) and psychological risk factors (motivation, depression, and sexual risk behaviors) on self-reported ecstasy use. Data were obtained from 612 recreational ecstasy users in the United States and Australia participating in a NIDA-funded epidemiological study examining trends in ecstasy use. The sample was mainly white (61%), male (58%), and young (mean age = 23yrs [5.25]). All of the hypothesized latent constructs were statistically reliable and correlated in the expected direction. A saturated SEM indicated that monetary and opportunity cost, but not income, significantly predicted ecstasy use. Among the psychological measures, motivational cues were the strongest predictor of both use and dependence. Inclusion of gender, age, race, education, and site variables did not appreciably alter the final model parameters. The implications of incorporating the role of economic factors in shaping a more refined understanding of addiction are discussed. Suggestions for future research and study limitations are also noted.  相似文献   
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