Aus Petersburg : (Original-Korrespondenz der "Welt")

P. B.

Learning in the cerebellar nucleus is necessary for acquisition of Pavlovian eyelid conditioning

The cumulative work presented here supports the hypothesis that plasticity in the cerebellar cortex and cerebellar nuclei mediates a simple associative form of motor teaming-Pavlovian eyelid conditioning. It was previously demonstrated that focal ablative lesions of cerebellar anterior lobe or pharmacological block of the cerebellar cortex output disrupted the timing of the conditioned eyeblink response, unmasking a response with a relatively fixed and very short latency to onset. The results of this thesis demonstrate that the short-latency responses are due to associative learning. Unpaired training does not support the acquisition of short-latency responses while the rate of acquisition of short-latency responses during paired training is approximately the same as that of timed conditioned responses. The acquisition of short-latency responses is dependent on an intact cerebellar cortex. Both ablative lesions of the cerebellar cortex and inactivation of cerebellar cortex output with picrotoxin block the acquisition of short-latency responses. However, once the short-latency responses are acquired neither disconnection of cerebellar cortex nor inactivation of the cerebellar nucleus block reacquisition. The results are consistent with the proposal that plasticity in the cerebellar cortex is necessary for learning the timing of conditioned responses, plasticity in the interpositus nucleus mediates the short latency responses, and cerebellar cortical output and mossy fiber input are necessary for the acquisition of short latency responses. ^

Determining acquisition and cessation antecedents to adolescent cigarette smoking for development of intervention strategies

Our national focus and emphasis on the promotion of healthy behavior choices regarding tobacco and other drugs continues to target adolescents. Multiple studies have shown that adolescence is the optimum period for the prevention of substance use initiation as life-long patterns of health behaviors are established during this critical developmental stage. Tobacco use is associated with an increase in morbid and mortal health conditions of which prevalence increases throughout the lifespan. Attention to the antecedents of preventable health conditions aims to modify the risks and identify health promotion factors. Modifying antecedent factors for tobacco initiation in youth and identifying protective factors for successful smoking cessation has major public health implications across the lifespan. Of foremost interest are those risk factors and resultant behaviors that predict a youth's probability of initiating cigarette use and their cessation of cigarette use. Specifically, this dissertation supports previous results identifying intervention variables on the initiation/cessation continuum model especially with the established predictors of smoking (decisional balance and susceptibility) and with more recently identified predictors of smoking (nicotine dependence and withdrawal symptoms) in current and former smokers in a sample of high school students in Austin and Houston, Texas. These results offer insight for the development of appropriate intervention program strategies for our youth. ^

Aus dem Original von Mose Ibn Esra

Albert Harkavy

Das arabische Original der anti-karäischen Verordnung des Maimonides

Israel Friedländer

Albert Einstein [Illustration] : nach einer Original-Radierung

Hermann Struck

Nissim ben Jakob und sein Sefer ha-mafteach schel manule ha-talmud [Rezension] : (Nach dem hebräischen Original bearbeitet von G.)

O. H. S. ....r

Geschichte der Juden in Kremsier mit Rücksicht auf die Nachbargemeinden : nach Original-Urkunden dargest.

von Ad. Frankl-Grün

Die Conferenz zu London : Vorspiel zu einem welthistorischen Original-Drama

von Charles Otto Querpfeiffer

Die schöne Athenienserin : Original - Lustspiel in vier Akten

L. Feldmann

Das Portrait der Geliebten : Original- Lustspiel in drei Akten

von L.Feldmann

Der Pascha und sein Sohn : Original-Lustspiel in fünf Akten

von L.Feldmann

Die Kirschen : Original-Lustspiel in einem Akte

von L.Feldmann

Die freie Wahl : Original - Lustspiel in einem Akte

von L.Feldmann