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1.
A young person's first consensual sexual intercourse experience is often a remarkable and memorable experience. However, little systematic information exists regarding contextual factors of first intercourse, the affective salience of the experience, possible effects on sexual attitudes and beliefs, and subsequent sexual development and adjustment. This retrospective study aimed to examine these in a sample of 475 young adults. Overall, young men and women experienced intercourse for the first time around age 17, were in a committed relationship, and reported positive affective responses. Affective reactions to the first sexual intercourse experience, sexual self-efficacy, sexual aversion, and age at first intercourse affected individuals' current sexual adjustment; however, only sexual self-efficacy mediated between first intercourse and current sexual adjustment in young men and women. Older age at first intercourse was associated with less sexual self-efficacy and lower current sexual adjustment for women. This study provides initial data to suggest that the first sexual intercourse experience significantly impacts current sexual adjustment by affecting beliefs about sexual self-efficacy.  相似文献   
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Condoms protect against human immunodeficiency virus (HIV)/sexually transmitted infections (STIs) and unintended pregnancy and are essential to sexual health efforts targeting young adults, who are disproportionately affected by both outcomes. Understanding condom use motives is critical to increasing condom use. Research in this area is limited, particularly regarding the roles of partners and relationship factors. Using a longitudinal sample of 441 young adults and 684 reported partnerships we examined associations between relationship factors and condom use motives (pregnancy prevention, disease prevention, or dual protection). Simultaneous multilevel models identified variables associated with motives; level-specific models identified the levels (individual, partnership, time) variables impacted motives. Participants reported choosing condoms for pregnancy prevention, disease prevention, and dual protection in 51%, 17%, and 33% of partnerships, respectively. Partner-specific factors varied, to a differing degree, across the three levels. Seven variables (duration, condom self-efficacy, commitment, sexual decision-making, power, and vulnerability to harm [HIV/STIs] and pregnancy) distinguished condom use motives. The level of this association varied but was most pronounced at the partner and individual levels. Researchers and practitioners should consider the impact of both individual- and partner-level factors on condom use motives, in both research and sexual health programs.  相似文献   
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Gray divorces, or divorces at and over the age of 50, are increasing in the United States. This article explores this population's interest in remarrying after a divorce by sex within the context of a prospective, role exit theoretical framework. In‐depth, qualitative interviews with 40 women and 39 men who have experienced a gray divorce were analyzed using grounded theory methodology. There were significant gender differences with respect to receptivity to remarriage among those who had undergone a gray divorce. More specifically, the most common theme expressed by women involved firmly rejecting remarriage as a part of their futures. The remaining themes articulated by women were conditional pro‐remarriage views and then even less commonly, unconditional pro‐remarriage views. In contrast, the most common theme among men was that they remained very open to remarriage, either unconditionally or under specified conditions; only a small number rejected the prospect entirely. These findings highlight the differences in the remarriage decision from both the female and male perspectives for this population.  相似文献   
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k-POD: A Method for k-Means Clustering of Missing Data   总被引:1,自引:0,他引:1  
The k-means algorithm is often used in clustering applications but its usage requires a complete data matrix. Missing data, however, are common in many applications. Mainstream approaches to clustering missing data reduce the missing data problem to a complete data formulation through either deletion or imputation but these solutions may incur significant costs. Our k-POD method presents a simple extension of k-means clustering for missing data that works even when the missingness mechanism is unknown, when external information is unavailable, and when there is significant missingness in the data.

[Received November 2014. Revised August 2015.]  相似文献   
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Shame remains largely a hidden phenomenon in the treatment of couples. It can manifest itself as a determining factor in events ranging from entrenched blaming to missed appointments. Although there is a growing body of literature on individual shame dynamics and, to a lesser extent, on couple and family shame dynamics, there is little written on how to incorporate these theories into treatment. This paper offers working definitions of shame, proposes a systemic definition of shame as seen in couples, reviews the literature on coule shame dynamics, and explores issues of therapeutic stance and treatment techniques in working with shame in couples therapy.  相似文献   
10.

Problem

There is lack of data on the rate of episiotomy in Lebanon and the study’s hospital.

Background

Only a few studies have addressed episiotomy practice in Lebanon and the Middle East and they show varying rates.

Aim

To identify the rate, and change in rate, of episiotomy practice over the years at a teaching hospital in Lebanon and to assess whether maternal age, parity, fetal weight, woman’s hospital admission class, and physician’s gender were associated with episiotomy. We also tested the association between episiotomy and postpartum hemorrhage and/or high degree perineal tears.

Methods

A retrospective observational study was conducted on 1756 records for women having a normal vaginal birth at a single centre from January 2009 to January 2014.

Findings

The rate of episiotomy at the hospital was very high, with 97.4% of women receiving an episiotomy in 2009. A major decrease in the rate was identified with a decline from 97.4% in 2009 to 73.3% in January 2014. Episiotomy was found to be associated with parity, maternal age, and with high degree perineal tears.

Discussion

The episiotomy rate at this centre remains higher than the 10% rate recommended by the World Health Organization, although there has been a significant reduction after a call for restrictive rather than liberal use.

Conclusion

Raising awareness among providers appeared to play a significant role in reducing this rate, although more efforts remain warranted. Other strategies – such as raising awareness of women about potential risks of episiotomy – are also worth exploring.  相似文献   
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