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111.
Little is known about the impact of the relational context of adolescent sexual activity on depressive symptoms. The present
study examined trajectories of depressive symptoms among 6,602 adolescents (44% male, 60% White) taken from a nationally representative
study (Add Health). Sexually active youth in romantic and casual relationships were first compared to virgins and then to
each other by relational context. Longitudinal, multilevel models examined differences in the course of depressive symptoms
based on sexual activity separately by gender and age group (ages 12–14 and 15–18). Results indicated that when compared to
virgins, any differences in depressive symptoms by relational context of sex were present prior to youth’s sexual debut. The
few significant differences found between youth who had sex in romantic relationships verses those who had casual sex were
present before sexual initiation and not maintained over time, suggesting that casual sex in adolescence is not associated
with long-term risks for depressive symptoms.
相似文献
Kathryn C. MonahanEmail: |
112.
Joanna Mckay 《German politics》2013,22(4):518-525
This article examines the 2006 Berlin Land election, including the election campaigns of the main parties, the results, and the process of post-election coalition formation. While few doubted that the Social Democratic Party (SPD) would emerge as the largest party, and that the highly popular Klaus Wowereit would continue as Berlin's governing mayor; the big questions were what coalition he would lead and whether Berliners would vote for a continuation of the (initially controversial) red–red coalition comprising the SPD and the Left Party. Party of Democratic Socialism (PDS). 相似文献
113.
Joanna Mckay 《German politics》2013,22(1):56-80
Today the proportion of German politicians who are female is at an all time high. This has largely been achieved via quotas and most of the main parties now operate some kind of quota system. But have quantitative improvements in female representation in been matched by qualitative improvements? This article seeks to answer this question by looking not only at the number of women in parliaments and other collective bodies, but also in the highest echelons of power. It outlines each party's policies regarding the promotion of women and the factors which enhance or hamper their impact. A brief comparison of female political representation in eastern and western Germany is also provided. The author argues that measures such as quotas have increased the number of female German politicians but still do not guarantee them equal access to positions of real power. Furthermore, the incorporation of pro-equality principles into party statutes has not automatically led to their assimilation into party cultures, especially in the case of well-established parties which only recently addressed the gender imbalance in their ranks. 相似文献
114.
The aim of this paper is twofold. First, we provide estimates of the evolution in matching efficiencies in Poland, demonstrating decrease in estimated efficiency scores. These trends are accompanied by decreasing outputs in the matching function, as well as the lowering of the elasticities. Second, we relate the estimated efficiency scores to the use of active labour market measures. We find that job brokering intensity is conducive to matching efficiency, but active labour market policies coverage in general is not. 相似文献
115.
Manning J 《Journal of law and medicine》2007,15(3):337-355
The conventional approach to causation in negligence is the "but for" test, decided on the balance of probabilities. Even when supplemented by the "material contribution" principle, satisfying the onus of proof of causation can be an insuperable obstacle for plaintiffs, particularly in medical cases. Yet, having found a breach of duty, a court's sympathies may gravitate toward the plaintiff at this point in the case. Accordingly, courts have sometimes accepted a relaxation of strict causation principles. The judicial devices are described: a special principle of causation in particular duties of care; a shifting burden of proof; "bridging the evidentiary gap" by drawing a robust inference of causation; treating a material increase in risk as sufficient proof of causation; and permitting causation to be established on the basis of the loss of a material chance of achieving a better outcome and discounting damages. In Accident Compensation Corp v Ambros [2007] NZCA 304 the New Zealand Court of Appeal recognised the need for a legal device to ameliorate the injustice sometimes caused by the strict rules of causation, and preferred the "inferential reasoning" approach favoured by the Canadian common law for use in the context of the accident compensation scheme. It is hoped that the New Zealand Supreme Court approves Ambros if the opportunity arises. 相似文献
116.
In this paper the by-products arising during the synthesis of 4-methylthioamphetamine (4-MTA) by LiAlH(4) reduction of 1-(4-methylthiophenyl)-2-nitropropene (nitropropene route) and reductive amination of 4-methylthiophenyl-2-propanone in the presence of NaCNBH(4) are investigated. The identification of 4-methylthio derivatives of N-(β-phenylisopropyl)benzaldimine, 4-methylthio derivative of N-(β-phenylisopropyl)benzyl methyl ketimine, 1-(4-methylthiophenyl)-N-(4-methylthiobenzyl)-2-propanamine, (RS) and (SS/RR)-N,N-di-[β-(4-methylthiophenyl)isopropyl]amine, 4-methylthiobenzyl ether and methylthiobenzoic acid methyl ester as most prominent impurities in crude 4-MTA synthesised by reductive amination of 4-methylthiophenyl-2-propanone, is reported. Methylthio derivatives of 2-methyl-3-phenylaziridine, 2-benzylaziridine, and 4-methylthio derivative of BMK oxime as route-specific markers of nitropropene route leading to 4-MTA, were also characterized. The identity of these compounds was confirmed by their independent synthesis. 相似文献
117.
Data from 191 post-mortem cases where post-mortem blood beta-hydroxybutyrate (βHB) and acetone concentrations and vitreous humor glucose concentrations (where available) had been measured were retrospectively investigated to determine the markers required to identify and distinguish between Alcoholic Ketoacidosis (AKA), Diabetic Ketoacidosis (DKA) and Hyperosmolar Hyperglycemic State (HHS). Blood βHB concentrations above 250 μg/mL were considered significant and it was shown to be the preferred marker of ketoacidosis. All cases with significant βHB detected also had acetone present (greater than 2mg/dL) demonstrating that acetone can be used as a marker to identify ketoacidosis and can be used to indicate when βHB measurement is necessary. Vitreous humor glucose concentrations above 6.9 mmol/L were considered high and indicative of hyperglycemia prior to death. Vitreous humor glucose concentrations can be used to distinguish between DKA and ketoacidosis from other causes and to identify deaths due to HHS. The data showed that ketoacidosis can occur without a history of alcoholism or diabetes. Many diabetics are undiagnosed for many years. Therefore, DKA or HHS should be considered in sudden or unexplained deaths and glucose should be routinely measured especially in cases with risk factors for diabetes including obesity, old age, a history of mental health problems or treatment with atypical antipsychotic drugs including clozapine, olanzapine, quetiapine and risperidone. 相似文献
118.
Lahey JN 《Journal of policy analysis and management》2012,31(1):63-92
This paper examines the labor market effects of state health insurance mandates that increase the cost of employing a demographically identifiable group. State mandates requiring that health insurance plans cover infertility treatment raise the relative cost of insuring older women of child-bearing age. Empirically, wages in this group are unaffected, but their total labor input decreases. Workers do not value infertility mandates at cost, and so will not take wage cuts in exchange, leading employers to decrease their demand for this affected and identifiable group. Differences in the empirical effects of mandates found in the literature are explained by a model including variations in the elasticity of demand, moral hazard, ability to identify a group, and adverse selection. 相似文献
119.
Susan Frances Knowles Joanna Hearne Ian Smith 《The journal of forensic psychiatry & psychology》2015,26(4):461-475
The role of the forensic mental health nurse has led to many debates due to the conflicts between security and therapeutic aspects of their role. Physical restraint is a security element of the role which may have an impact on their ability to work therapeutically with patients. This study examined the impact of physical restraint on the nursing staff–patient therapeutic relationship. This was investigated in a secure unit in the North of England. Eight semi-structured interviews were conducted with patients across the service, and thematic analysis was undertaken. Five themes were identified from the data which highlighted the impact of the physical restraint as a power imbalance, the experience as traumatic, the importance of justification, the negative attributes and motives of some staff and the impact of coping with powerlessness. Clinical implications and research recommendations are discussed further in this article. 相似文献
120.