The relation of family and partner support to the adjustment of adolescent mothers

The influence of teenage mothers' perceptions of family and partner social support on their postpartum adjustment was examined in this study. A structured interview with teenage mothers was conducted prenatally and a follow-up assessment was done when their children were 8 months of age. Both partner and family support were related to greater satisfaction with life, but each was associated in a different way with parenting and concerns about daily living. The results indicate the importance of distinguishing between specific sources of social support and different aspects of adjustment to teen parenthood.     

Developmental Trajectories of Acculturation in Hispanic Adolescents: Associations With Family Functioning and Adolescent Risk Behavior

This study examined longitudinal acculturation patterns, and their associations with family functioning and adolescent risk behaviors, in Hispanic immigrant families. A sample of 266 Hispanic adolescents (M_age = 13.4) and their primary parents completed measures of acculturation, family functioning, and adolescent conduct problems, substance use, and sexual behavior at five timepoints. Mixture models yielded three trajectory classes apiece for adolescent and parent acculturation. Assimilated adolescents reported the poorest family functioning, but adolescent assimilation negatively predicted adolescent cigarette smoking, sexual activity, and unprotected sex indirectly through family functioning. Follow‐up analyses indicated that discrepancies between adolescent and parent family functioning reports predicted these adolescent outcomes. Results are discussed regarding acculturation trajectories, adolescent risk behavior, and the mediating role of family functioning.     

Long-term inhibition of Na+/H+ exchange attenuates cardiac remodeling after myocardial infarction in rats

Objective: In addition to pH regulation, Na⁺/H⁺ exchange (NHE) has been shown to facilitate cell growth and proliferation. However, the effects of long-term inhibition of Na⁺/H⁺ exchange on cardiac structural and functional remodeling post myocardial infarction (MI) are still controversial. The present study was therefore carried out to further investigate the effects of long-term treatment with cariporide, a specific inhibitor of NHE-1, on cardiac remodeling after MI in rats; Methods: Male Wistar rats that underwent coronary ligation were randomly selected for cariporide treatment starting 6 h after induction of MI or no treatment. Treatment was continued up to 6 weeks post MI, after which, the arterial, venous and left ventricular catheters were chronically implanted. Twenty-four h later, after hemodynamic signals were recorded in conscious rats, they were sacrificed and hearts were taken out for morphological examinations; Results: Cariporide treatment decreased the heart weight and heart weight to body weight ratio (bothP<0.05), decreased left ventricular end-diastolic pressure (P<0.001), improved myocardial contractility (dP/dt _max) (P<0.05) and tended to increase the survival of treated rats compared to that of untreated infarct rats; Conclusion: The results of the present study indicate that the long-term inhibition of NHE with cariporide can attenuate cardiac structural remodeling and improve left ventricular dysfunction in infarcted rats, and suggest that Na⁺/H⁺ exchange inhibition could be an effective therapeutic strategy for myocardial infarction-induced heart failure.     

The use of Loansome Doc to meet the needs of unaffiliated health professionals

Objective: This study was undertaken in order to determine how health sciences libraries in a ten-state region are using Loansome Doc, with an emphasis on whether this tool continues to be used to serve unaffiliated health professionals. Methods: Usage data were examined and health sciences libraries were administered a survey to determine how they are using this tool. Results: Loansome Doc usage across libraries is low and declining, and a number of libraries do not serve unaffiliated health professionals with this tool. Conclusions: Use of Loansome Doc is low and declining, in part, due to license restrictions, declining interlibrary loan, and the prevalence of alternatives, such as OCLC's ILLiad, for document delivery to affiliated users.     

Methodik und Ergebnisse einer Experimentreihe über Entwurfsmuster

Software-Entwurfsmuster sind eine intuitiv einleuchtende Idee, die viele Befürworter hat. Als Forscher dürfen wir die behaupteten Wirkungen von Entwurfsmustern jedoch nicht einfach glauben, sondern müssen sie gründlich prüfen. Dieser Artikel beschreibt die wichtigsten Behauptungen und entwickelt daraus zugeh?rige Forschungsfragen. Wir diskutieren die Methodik für ein Forschungsprogramm, das die Fragen beantworten soll, und skizzieren praktische Beschr?nkungen, unter denen diese Forschung ablaufen mu?. Es folgt eine kurze Beschreibung von drei kontrollierten Experimenten und den Hauptfolgerungen aus ihren Ergebnissen. So sollte man zum Beispiel die Benutzung von Entwurfsmustern in einem Entwurf genau dokumentieren und Entwurfsmuster nicht einsetzen, ohne alternative Entwürfe zu prüfen. Abschlie?end diskutieren wir ein im Rahmen des Forschungsprogramms geplantes viertes Experiment. Der Beitrag dieses Artikels liegt vorrangig in einer Beschreibung und Diskussion wichtiger methodischer Aspekte kontrollierter Experimente in der Softwaretechnik.     

A network method of measuring affiliation-based peer influence: assessing the influences of teammates' smoking on adolescent smoking

Using a network analytic framework, this study introduces a new method to measure peer influence based on adolescents' affiliations or 2-mode social network data. Exposure based on affiliations is referred to as the "affiliation exposure model." This study demonstrates the methodology using data on young adolescent smoking being influenced by joint participation in school-based organized sports activities with smokers. The analytic sample consisted of 1,260 American adolescents from ages 10 to 13 in middle schools, and the results of the longitudinal regression analyses showed that adolescents were more likely to smoke as they were increasingly exposed to teammates who smoke. This study illustrates the importance of peer influence via affiliation through team sports.     

Experience and maturation: The contribution of co-occurrence regularities in language to the development of semantic organization

With development knowledge becomes organized according to semantic links, including early-developing associative (e.g., juicy–apple) and gradually developing taxonomic links (e.g., apple–pear). Word co-occurrence regularities may foster these links: Associative links may form from direct co-occurrence (e.g., juicy–apple), and taxonomic links from shared co-occurrence (e.g., apple and pear co-occur with juicy). Four experiments (2017–2020) investigated this possibility with 4- to 8-year-olds (N = 148, 82 female) and adults (N = 116, 35 female) in a U.S. city with 58.6% White; 29.0% Black, and 5.8% Asian demographics. Results revealed earlier development of the abilities to form direct (ds > 0.536) than the abilities to form shared co-occurrence-based links (ds > 1.291). We argue that the asynchronous development of abilities to form co-occurrence-based links may explain developmental changes in semantic organization.     

Die arbeitsrechtliche Stellung von Lehrbeauftragten im Lichte der Entscheidung VwGH 2005/08/0137 vom 25.4.2007

Die im April diesen Jahres ergangene Entscheidung des VwGH zur Einordnung von Lehrbeauftragten an Fachhochschulen aus arbeits-, sozialversicherungs- und einkommensteuerrechtlicher Sicht hat die Diskussion zur Einordnung der Dienstverhältnisse mit Lehrbeauftragten neu entfacht. Im Rahmen des Aufsatzes beleuchten die Autoren den historischen Hintergrund der Einordnung von Lehraufträgen aus steuer- und sozialversicherungsrechtlicher Sicht und legen dar, wie es zur Einordnung der freien Dienstverhältnisse an Fachhochschulen als "echte" Dienstverträge in sozialversicherungsrechtlicher Sicht gekommen ist. Abschließend wird in Hinblick auf die neueste VwGH-Entscheidung kritisch dargelegt, warum Lehrbeauftragte keine "echten" Dienstnehmer aus arbeitsrechtlicher Sicht sein können.     

Gene–environment interplay linking perceived parental supervision and peer drunkenness with Chinese adolescent alcohol initiation

Following 602 Chinese twin pairs (48% male, all Han ethnicity) from primarily lower-than-average socioeconomic status families from early to mid-adolescence (M_s = 12 and 15 in 2006 and 2009), this study investigated gene–environment interplay between perceived parental supervision, peer drunkenness, and adolescent alcohol initiation. For alcohol initiation, shared environmental influences were initially negligible but became substantial. Genetic factors largely explained the links between both correlates with alcohol initiation. Parental supervision amplified genetic risks for alcohol initiation in early adolescence but suppressed it in mid-adolescence. Peer drunkenness augmented genetic and environmental influences at both times. Peer drunkenness showed stronger links and moderating potential than parental supervision. Chinese adolescents show dynamic gene–environment interplay patterns involving parent–child and peer processes in alcohol initiation.