为什么历史上经营式农业不发展：以无锡为案例

本文基于第一、二次对"无锡、保定农村调查"的资料,分析说明了无锡农村经营式农业的日渐式微,并从出租农地与雇工经营的收益方程、较高工商业发展水平导致的机会成本增加,以及家庭小农场的竞争三个方面分析了经营式农业不发展的原因.我们认为,主要是当地较高但又不足够高的工商业发展水平导致了经营式农业难以发展.较高的工商业发展水平意味着发展经营式农业的高运营成本和高机会成本.不足够高又使得非农产业的需求与人数众多的农业过剩劳动力不相匹配,从而造成了家庭小农场和经营式农场之间的激烈对抗.我们也认为,中国未来的农业农村现代化道路可能会依然呈现出复杂性和特殊性,家庭小农场扮演的角色可能仍然不容忽视.     

Family factors associated with emerging adults’ human papillomavirus vaccine behavior

Abstract

Objective: The current study examined the role of family influences on the vaccine behavior of emerging adults. Participants: In Spring 2017, we conducted anonymous online surveys of undergraduate students (n?=?608) at a large, public university in the mid-Atlantic. Methods: Logistic regression was used to examine associations between family factors and students’ awareness of the HPV vaccine, vaccine receipt, and vaccine intentions. Family factors included sex communication, religiosity, parental monitoring, family structure, and parents’ birthplace. Results: More comprehensive family sex communication is associated with less uncertainty regarding HPV vaccine receipt and greater likelihood of being already vaccinated. More frequent family religiosity and more parental monitoring are associated with greater likelihood of having decided against vaccination rather than already being vaccinated. Significant gender and racial disparities exist. Conclusion: Further research, policy, and programmatic intervention are needed to reduce disparities and to improve emerging adults’ compliance with HPV vaccine recommendations.     

Responding to Adolescent Violence in the Home – A Community Mental Health Approach

Family violence perpetrated by adults is increasingly understood as a health issue, and we argue that this pertains even more strongly to violence by adolescents. The co-dependence of the parent–child bond, lack of maturity in the adolescent, and often related issues of disability or mental illness make these young people both complex and also vulnerable. This research paper reviews the current literature relating to adolescent violence in the home, identifies known best practice, and evaluates the importance of taking a family-focused, therapeutic approach to adolescent family violence, in place of a punitive one. It describes the use of a co-design workshop to unpack gaps in service provision and develop a potential family focused model of care to address the needs both of young people who use violence, and their families. The findings indicate that an inclusive family approach is a key element in addressing adolescent violence in the home across a spectrum of behaviours and mental health care needs. The use of a coordinated, family-inclusive response through mental health care services is recommended to address the complexity of this issue, as well as to provide support both to adolescents and to their families and carers.     

Educational Assortative Mating and Income Dynamics in Couples: A Longitudinal Dyadic Perspective

The question of how educational assortative mating may transform couples' lives and within‐family gender inequality has gained increasing attention. Using 25 waves (1979–2012) of data from the National Longitudinal Survey of Youth 1979 and longitudinal multilevel dyad models, this study investigated how educational assortative mating shapes income dynamics in couples during the marital life course. Couples were grouped into three categories—educational hypergamy (wives less educated than their husbands), homogamy, and hypogamy (wives more educated than their husbands). Results show that change in husbands' income with marital duration is similar across couples, whereas change in wives' income varies by educational assortative mating, with wives in educational hypogamy exhibiting more positive change in income during the marital life course. The finding that husbands' long‐term economic advancement is less affected than that of wives by educational assortative mating underscores the gender‐asymmetric nature of spousal influence in heterosexual marriages.     

Separating Spheres? Diverging Trends in Youth's Gender Attitudes About Work and Family

The authors investigated whether trends in attitudes about gender were consistent with the gender stall primarily occurring in the family domain and examined potential mechanisms associated with changing gender norms. Using data from Monitoring the Future surveys (1976–2015), the authors assessed three components of trends in youth's beliefs about gender: the marketplace, the family, and mothers' employment. Findings showed continued increases in egalitarianism from 1976 through the mid‐1990s across all three dimensions. Thereafter, support for egalitarianism in the public sphere plateaued at high levels, rising support for mothers' employment persisted at a slower pace, and conventional ideology about gender in families returned. The changing demographic composition of American high school students did not account for the gender attitude trends. Youth's mothers' employment and increased education were related to increased egalitarianism. Changes in population averages of mothers' employment and educational attainment were only weakly associated with increases in egalitarian attitudes.     

The Examination of Emotional Facial Expressions Within Parent–Child and Sibling Interactive Contexts: A Systematic Review

This work constitutes a systematic review of the empirical literature about emotional facial expressions displayed in the context of family interaction. Searches of electronic databases from January 1990 until December 2016 generated close to 4400 articles, of which only 26 met the inclusion criteria. Evidence indicate that affective expressions were mostly examined through laboratory and naturalistic observations, within a wide range of interactive contexts in which mother–child dyads significantly outnumbered father–child dyads. Moreover, dyadic partners were found to match each others’ displays and positive and neutral facial expressions proving more frequent than negative facial expressions. Finally, researchers observed some developmental and gender differences regarding the frequency, intensity, and category of emotional displays and identified certain links among facial expression behavior, family relations, personal adjustment, and peer-related social competence.     

Family Characteristics and Mate Selection: Evidence From Computer‐Assisted Dating in Japan

Research on mate selection rarely considers singles' preferences for their future partners' family configurations and experiences. Using online dating records from a matchmaking agency in Japan, a society with a strong emphasis on family and kinship, we examine how singles' responses to date requests correspond to potential mates' family circumstances. Results showed that singles' preferences for potential partners' family characteristics stem from a concern about future obligations toward the partner's family and stereotypes associated with certain family traits. Singles are less likely to accept requests from those from large families, which are seen as traditional. Being from a large family, however, hampers individuals' dating chances more if they are firstborn and have no brothers, two conditions that make them the designated child to care for elderly parents. We also find that Japanese singles seek partners with more of the universally valued family traits rather than traits similar to their own.     

German fathers and their preferences for shorter working hours for family reasons

This study is among the first to analyze fathers’ preference for shorter working hours specifying that the preference is related to the wish to spend more time with the family. Assuming that preferences are context-dependent, this article explores the relevance of the family and workplace context for preference formation. We develop need-based and capability-based arguments to contrast the job demands–resources approach and the capabilities approach in work–family research. Using a sample of 632 fathers from the German LEEP-B3 data with a representative linked employer–employee design for large work organizations we conclude that fathers’ preferences for shorter working hours are indeed context-dependent and that there is more evidence for need-based arguments than opportunity based arguments. Our results indicate that fathers with young children and fathers with high work demands are more likely to desire shorter working hours, whereas a reduction in working hours appears to be unnecessary for fathers who can satisfactorily reconcile work and family life through support from their supervisors. In contrast to capability-based arguments the perception of a highly demanding work culture was not found to decrease but increase the likelihood to desire to work shorter hours.     

Administration of daily 5 mg tadalafil improves endothelial function in patients with benign prostatic hyperplasia

Introduction: Tadalafil is a promising phosphodiesterase (PDE) 5 inhibitor prescribed for erectile dysfunction (ED). Daily low dose (5?mg) of tadalafil has also been used for the treatment of male lower urinary tract symptoms (LUTS) associated with benign prostate hyperplasia (BPH). PDE5 inhibitors induce relaxation of smooth muscle cells in the urethra, prostate, bladder neck, and blood vessels. The aim of this study was to investigate the efficacy of tadalafil on vessels endothelial function, in patients with male LUTS symptoms associated with BPH.

Methods: The Institutional Review Board (IRB) approved this clinical study and informed consents had been obtained from 81 BPH patients.

The following male LUTS parameters: international prostate symptom score (IPSS), overactive bladder symptom score (OABSS), voiding volume, max and mean voiding flow on voiding flowmetry examination and post-voiding residual urine (RU) were compared at 0, 1, 3, 6, and 12 months after a daily dose of 5?mg tadalafil.

In addition, erectile function was evaluated by the sexual health inventory for men (SHIM) score and vessels endothelial function and peripheral neuropathy were assessed by the brachial-ankle pulse wave velocity (baPWV), ankle brachial index (ABI), and vibration perception threshold (VPT) at 0, 3, 6, and 12 months after treatment.

Results: The mean age of 81 patients was 66.4?±?11.4 years old. Their prostate size was 30.2?±?22.1?ml.

Male LUTS parameters including IPSS, OABSS, and RU showed significant improvement from 1 to 12 months after tadalafil administration. Max and mean voiding flow was significantly increased at 6 months after tadalafil treatment.

The SHIM score showed significant improvement after 3 months. Whilst, the results of baPWV also showed significant improvement from 3 to 12 months. ABI was also significantly improved at 6 months. However, there was no change in the VPT at any time point.

Conclusions: Tadalafil is effective for both male LUTS and ED. It is also shown that tadalafil improves baPWV, which we can conclude that higher vessels elasticity has been obtained. This major finding of this study shows that tadalafil has the potency to improve vessels endothelial dysfunction in patients with BPH.     

Parenting in the Context of Deportation Risk

Nearly 5.1 million children younger than age 18 live with at least one undocumented parent, about 7% of the U.S. child population. Between 2010 and 2013, an estimated 300,000 parents of U.S. citizen children were deported. Raising children in the context of deportation risk increases overall parenting stress for undocumented Latino parents. To investigate this and understand the experience of undocumented parenting, the authors interviewed 70 undocumented parents in two Southwest cities from 2012 to 2013. The authors frame their analysis using the lens of the problem of “illegality.” There are three domains of stressors associated with parenting in the context of deportation risk: trapped parenting, threat of family separation, and altered family processes. The authors discuss these findings in the context of the literature on undocumented families and parenting stress and connect these findings to the current sociopolitical context experienced by Latino families in the United States .