Attitudes About Sex and Marital Sexual Behavior in Hai Duong Province, Vietnam

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/74926/1/j.1728-4465.2005.00047.x.pd

Gérer la famille pluripaternelle : le beau-père comme allié du père

Managing the multifather family : stepfathers as father allies. Drawing on qualitative in-depth interviews with 46 stepfathers, we explore how stepfathers characterize the biological father and their relations with him. We focus specifically on instances in which stepfathers directly and indirectly act like a father ally ; that is, they presumably help the father sustain or improve his relationship with his child. Our analysis generates theoretical insights about father ally properties (development, purpose, awareness level, reciprocity routines, building trust/ respect, and social capital) while discussing conditions that either facilitate (male bonding, avoiding the threshold of discomfort, stepfather’s romantic relationship security, father’s perceived worthiness, and having biological children) or could foster (mother as gatekeeper/ mediator, quality of stepfather-child relationship) its expression. We consider how stepfathers conceptualize and display a cooperative interactive style reflecting a less traditional masculine self. Our study illustrates some of the interpersonal complexities associated with stepfamily fatherhood in the United States.En s’appuyant sur des entretiens qualitatifs approfondis conduits auprès de quarante-six beaux-pères, cet article s’intéresse plus spécifiquement aux cas dans lesquels ceux-ci se comportent, directement et indirectement, comme des alliés du père, à savoir lorsqu’ils l’aident à maintenir ou renforcer sa relation avec son enfant. L’analyse apporte un éclairage théorique sur le concept d’« allié du père » et sur les conditions qui facilitent ou pourraient promouvoir sa concrétisation. Il examine comment les beaux-pères conceptualisent et mettent en oeuvre une coopération interactive qui témoigne d’une identité masculine moins traditionnelle. L’étude illustre ainsi certaines des difficultés interpersonnelles associées à la paternité au sein de familles recomposées aux États-Unis.Marsiglio William, Hinojosa Ramon. Gérer la famille pluripaternelle : le beau-père comme allié du père. In: Politiques sociales et familiales, n°96, 2009. Nouvelles conjugalités et nouveaux modèles conjugaux ? pp. 9-25

Framing Men's Experiences in the Procreative Realm

Informed by a critical men’s studies perspective, as well as symbolic interactionist and life course themes, we explore how men’s relationship to the procreative realm is currently conceptualized in academic scholarship and public policy debates. We articulate opportunities to advance our conceptual understanding of men’s experiences with pregnancy and family planning by framing the procreative period as a multilayered, dynamic process. We also delineate a broader agenda for critical research on men’s participation in reproductive planning. In particular, we advocate that future research be guided by four strategies: comparative designs, diverse methodologies, prospective and retrospective longitudinal studies, and approaches that capture the multiple, interrelated layers of social life that affect men’s thoughts, feelings, and practices in the procreative real

Fatherhood Desires and Being Bothered by Future Childlessness among U.S. Gay, Bisexual, and Heterosexual Men—United States, 2002–2015

Recent legal and social changes in marriage equality, parenting among same-sex couples, and fatherhood discourses may prompt more US gay and bisexual men to desire fatherhood. However, scholars know little about fatherhood desires among these men. Therefore, we investigated temporal changes in fatherhood desires and perceptions of being bothered by future childlessness among US gay, bisexual, and heterosexual men. The sample included childless men participating in 5 cycles of the National Survey of Family Growth. Adjusted Wald tests and Pearson’s chi-square tests examined temporal changes in future fatherhood desires and being bothered by future childlessness, and they compared the men along these outcomes. We used logistic regression for multivariable analyses. The proportion of gay, bisexual, and heterosexual men who desired fatherhood remained stable from 2002 to 2013–2015. Most gay, bisexual, and heterosexual men desired fatherhood, but gay men had the lowest likelihood of doing so. Gay and bisexual men were less likely than heterosexual men to be bothered by future childlessness. Although the prevalence of fatherhood desires among these men did not increase during 2002–2015, the relatively high prevalence of fatherhood desires warrants research and data collection to understand factors influencing these desires, especially among gay and bisexual men

Reappraising the Luminescence Lifetime Distributions in Silicon Nanocrystals

Abstract The luminescence dynamics in ensembles of nanocrystals are complicated by a variety of processes, including the size-dependence of the radiative and non-radiative rates in inhomogeneous broadened samples and interparticle interactions. This results in a non-exponential decay, which for the specific case of silicon nanocrystals (SiNCs) has been widely modeled with a Kohlrausch or “stretched exponential” (SE) function. We first derive the population decay function for a luminescence decay following exp[− (t/τ) β ]. We then compare the distributions and mean times calculated by assuming that either the luminescence decay or the population decay follows this function and show that the results are significantly different for β much below 1. We then apply these two types of SE functions as well as other models to the luminescence decay data from two thermally grown SiNC samples with different mean sizes. The mean lifetimes are strongly dependent on the experimental setup and the chosen fitting model, none of which appears to adequately describe the ensemble decay dynamics. Frequency-resolved spectroscopy (FRS) techniques are then applied to SiNCs in order to extract the lifetime distribution directly. The rate distribution has a half width of ~ 0.5 decades and mainly resembles a somewhat high-frequency-skewed lognormal function. The combination of TRS and FRS methods appear best suited to uncovering the luminescence dynamics of NC materials having a broad emission spectrum