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161.
It is well known that the expectation and variance of a truncated normal distribution can be simply expressed in terms of the hazard rate function. This paper shows that it is possible to express the expectation and covariance matrices of a truncated multinormal distribution with similarly simple expressions in which the hazard rate function is generalized to thevector multivariate hazard rate(also: hazard gradient) of Johnson and Kotz. This provides a concise computational form for the mutivariate moments and lends support to the contention that the hazard gradient is the appropriate generalization of the univariate hazard rate.  相似文献   
162.
This paper gives an account of qualitative research linked to clinical work relating to some of the short-term effects of divorce on children within a British perspective. The transitions that accompany divorce and family reordering are shown by many studies in the United States, Australia, and New Zealand as well as in the United Kingdom to have stressful effects for children that can lead to long-term negative outcomes. Other studies have focused on the differential social and family factors that may contribute to the "differences that make a difference" to whether divorce has harmful effects on children. This paper describes clinical intervention into family relationships in divorcing and postdivorce families and suggests some high-risk issues for children. The focus of the work is one promoting long-term connections between parents and children in reordered+ families. Some interactions that may promote resilience in children as well as in their parents are alluded to briefly.  相似文献   
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The purpose of this study was to develop a brief physical activity interview for older adults (Phone-FITT) and evaluate its test-retest reliability and validity. Summary scores were derived for household, recreational, and total PA. Reliability was evaluated in a convenience sample from a fall-prevention study (N = 43, 79.4 +/- 2.9 years, 51% male), and validity, in a random sample of individuals in older adult exercise programs (N = 48, 77.4 +/- 4.7 years, 25% male). Mean time to complete the Phone-FITT was 10 min for participants sampled from exercise programs. Evaluation of test-retest reliability indicated substantial to almost perfect agreement for all scores, with intraclass correlation coefficients (95% confidence intervals) ranging from .74 (.58-.85) to .88 (.8-.94). For validity, Spearman's rho correlations of Phone-FITT scores with accelerometer counts ranged from .29 (.01-.53) to .57 (.34-.73). Correlations of Phone-FITT recreational scores with age and seconds to complete a self-paced step test ranged from -.29 (-.53 to -.01) to -.45 (-.68 to -.14). This study contributes preliminary evidence of the reliability and validity of the Phone-FITT.  相似文献   
166.
Against the background of heavy membership decline, the increasing importance of women as a source of members for unions and union efforts to attract women into membership, this paper explores the nature of women's union activism. The focus is on why women stay active in unions. The paper employs Klandermans' model as a framework for examining senior union women's activism. This study suggests that the model is gendered in that women's experiences and perceptions of trade unions are highly gender specific and further that their union activities are underpinned by a feminist paradigm. The women in the study expressed a strong desire to ensure that the union works for women, indicative of the gendered nature of their commitment to the union. They revealed gendered bargaining priorities and thus gendered perceptions of union instrumentality. Their social integration within the union is shown to be highly or partially contingent upon, formal and informal women's support networks.  相似文献   
167.
Some scholars have shown how the U.S. has deployed several traditional, imperial strategies to maintain global power, including military interventions, support for proxy governments, economic coercion, and the exercise of hegemony. In many countries, though, these strategies cannot effectively work. Some countries have elected leaders that defy U.S. influence, and, in middle‐income countries, the U.S. cannot use economic coercion. The U.S. also cannot militarily invade all countries that possess anti‐American governments. How, then, does the U.S. aim to confront and control anti‐American governments in the contemporary world? I examine U.S. foreign policy towards Venezuela under Hugo Chávez, who recurrently challenged U.S. global power during his time in office. Through interviews with U.S. state elites, who developed policy towards Venezuela, and through analysis of U.S. diplomatic cables, I show how the U.S. has moved away from traditional, imperial modalities and towards new imperial techniques aimed at frustrating political processes within particular countries, as well as containing their global influence. These techniques include pressuring the federal judiciary, utilizing state agencies to fund and support opposition political parties and NGOs, seeking to terminate particular pieces of legislation, and eliminating eligibility for global leadership positions. These efforts do not immediately aim to displace existing governments, but, in the least, they aim to frustrate the domestic efforts of particular governments, and ultimately cultivate conditions favorable for the political opposition to eventually attain political power.  相似文献   
168.
One specific area of communication that has the potential to elicit a wide range of outcomes, such as enhancing a couple's feelings of intimacy, offending one or both partners causing conflict, improving the communication climate within the relationship, or embarrassing the partners involved, is the discussion of sex. The current project theorized how to initiate and maintain sexual coaching conversations, taught participants the components of skillful and unskillful messages in an online training program, and then evaluated the overall effectiveness of said program. Forty couples participated in an online sexual coaching training program and completed several pretest and posttest measures. Results reveal that participation in the training program led to an increase in sexual and relationship satisfaction, a decrease in sexual communication apprehension, and an increase in sexual coaching knowledge and skill. These results, along with the value of interventive research and the implications of this training program, are discussed.  相似文献   
169.

Problem

The persistence of health inequalities in pregnancy and infancy amongst vulnerable/marginalised groups in the UK.

Background

During pregnancy and early motherhood some women experience severe and multiple psychosocial and economic disadvantages that negatively affect their wellbeing and make them at increased risk of poor maternal and infant health outcomes.

Aim

To explore vulnerable/marginalised women’s views and experiences of receiving targeted support from a specialist midwifery service and/or a charity.

Methods

A mixed-methods study was undertaken that involved analysis of routinely collected birth-related/outcome data and interviews with a sample of vulnerable/marginalised women who had/had not received targeted support from a specialist midwifery service and/or a charity. In this paper we present in-depth insights from the 11 women who had received targeted support.

Findings

Four key themes were identified; ‘enabling needs-led care and support’, ‘empowering through knowledge, trust and acceptance’, ‘the value of a supportive presence’ and ‘developing capabilities, motivation and confidence’.

Discussion

Support provided by a specialist midwifery service and/or charity improved the maternity and parenting experiences of vulnerable/marginalised women. This was primarily achieved by developing a provider–woman relationship built on mutual trust and understanding and through which needs-led care and support was provided — leading to improved confidence, skills and capacities for positive parenting and health.

Conclusion

The collaborative, multiagency, targeted intervention provides a useful model for further research and development. It offers a creative, salutogenic and health promoting approach to provide support for the most vulnerable/marginalised women as they make the journey into parenthood.  相似文献   
170.
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