Understanding sadomasochism: an empirical examination of four perspectives

Three studies assessed current understandings of sadomasochism (SM). In Study 1 questionnaires testing four academic views of SM were administered to individuals who self-defined as involved in SM. The psychoanalytic, psychopathology/medical model, radical feminist and escape-from-self perspectives were not supported. Study 2 examined "virtual" sadomasochism as a source of information about sadomasochists in the real life world. Cluster analyses indicated that real-life and virtual sadomasochists share unique sexual proclivities. Study 3 examined an alternative view that identifies power as the commodity of importance in SM play. Content analysis of online SM encounters indicated that both "top" and "bottom" role-players used several specific techniques to create a power differential. These studies suggest that, contrary to many academic theories, power, and not the giving and receiving of pain, is at the core of SM.     

Does the Risk Outweigh the Benefits? Adolescent Responses to Completing Health Surveys

The aim of this study is to describe the self‐reported experiences of adolescents in population‐based samples when completing health‐related surveys on topics with varying potential for evoking distress. Survey data were collected in three school‐based studies of bullying behaviors (N = 1,771, 12–14 years), alcohol use (N = 823, 12, 15, and 17 years), and electronic image sharing (N = 274, 13 years). Between 5% and 15% of respondents reported being upset at survey completion, but at most 1.4% were entirely negative in their evaluation. Age was not associated with being upset, but younger adolescents were more likely to see benefit in participation. Although concurrent mental health symptoms increased the risk of being upset, this was mostly mitigated by perceived benefits from participation.     

Beyond the Nuclear Family: Trends in Children Living in Shared Households

Using data from the 1996–2008 panels of the Survey of Income and Program Participation and the 2009–2016 American Community Survey, we examine trends in U.S. children living in shared households (living with adults beyond their nuclear (parent/parent’s partner/sibling) family). We find that although the share of children who lived in a shared household increased over this period, the rise was nearly entirely driven by an increase in three-generation/multigenerational households (coresident grandparent(s), parent(s), and child). In 1996, 5.7 % of children lived in a three-generation household; by 2016, 9.8 % did likewise—more than a 4 percentage point increase. More economically advantaged groups (older, more educated mothers, married households) experienced the largest percentage increase in three-generation coresidence, although correlates of coresidence remained largely stable. Decomposition analyses suggest that the rise in Social Security receipt and changes in parental relationship status (less marriage, more single parenthood) most strongly explained the increase in three-generation households. Given the dramatic rise in three-generation households, more research is needed to understand the consequences of these living arrangements for children, their parents, and their grandparents.     

Effects of placentophagy on maternal salivary hormones: A pilot trial,part 1

Background

Recent studies show that human placenta, processed and encapsulated for postpartum consumption, contains a host of trace minerals and hormones that could conceivably affect maternal physiology. Our objective was to investigate whether salivary hormone concentrations of women ingesting their own encapsulated placenta during the early postpartum differed from those of women consuming a placebo.

Uncovering Alternate Ethnic Identity Trajectories: A Cluster Analysis of the MEIM and Psychological Well-Being

Race and Social Problems - There is vast support in the racial-ethnic identity literature that there is a positive association between racial-ethnic identity and psychological well-being. The...     

Maternal Child Sexual Abuse Is Associated With Lower Maternal Warmth Toward Daughters but Not Sons

Mothers with a history of child sexual abuse report less warmth toward their children, but whether this association differs by child gender is unknown. We examined the association of maternal child sexual abuse and warmth across child gender, accounting for depression, post-traumatic stress disorder, and child physical abuse. We verbally administered self-report measures to a cross-sectional sample of 154 mothers with a child between 8 and 12 years old. Eighty-five mothers based warmth responses on a son, and 69 on a daughter. We conducted a hierarchical multiple regression, including child gender, maternal child sexual abuse, child physical abuse, depression, post-traumatic stress disorder, and 4 two-way interaction terms with child gender. Maternal depression predicted decreased warmth, regardless of child gender, and maternal child sexual abuse predicted decreased warmth, but only toward daughters. Given previous research suggesting that maternal warmth predicts child well-being, the current finding may represent an important avenue of intergenerational transmission of risk in girls.     

企業培訓促進業務增長——輝瑞的成功企業培訓計劃(英文)

在知識經濟時代,員工的知識和技能正逐漸成為企業最有價值的資產,成為企業競爭優勢的源泉。輝瑞公司的企業培訓是由其企業價值觀決定的,這種企業價值觀促使輝瑞實施著覆蓋全員並因材施教的富有彈性的培訓方案。此外,輝瑞為員工提供了充分透明的職業發展規劃,公司的每一位員工都知曉如何才能被提升以及公司對其提升後的期望,從而使得培訓真正成為了激勵員工的手段。同時,輝瑞的培訓是基於嚴格的培訓業務管理的,而且,輝瑞的培訓對管理者和下屬都有著一套動態的培訓效果的評估與回馈體系。     

Uses and Misuses of Multicriteria Decision Analysis (MCDA) in Environmental Decision Making

We focus on a class of multicriteria methods that are commonly used in environmental decision making—those that employ the weighted linear average algorithm (and this includes the popular analytic hierarchy process (AHP)). While we do not doubt the potential benefits of using formal decision methods of this type, we draw attention to the consequences of not using them well. In particular, we highlight a property of these methods that should not be overlooked when they are applied in environmental and wider decision-making contexts: the final decision or ranking of options is dependent on the choice of performance scoring scales for the criteria when the criteria weights are held constant. We compare this "sensitivity" to a well-known criticism of the AHP, and we go on to describe the more general lesson when it comes to using weighted linear average methods—a lesson concerning the relationship between criteria weights and performance scoring scales.     

Statistical Analysis Of Mixture Vector Autoregressive Models

In this paper, we reconsider the mixture vector autoregressive model, which was proposed in the literature for modelling non‐linear time series. We complete and extend the stationarity conditions, derive a matrix formula in closed form for the autocovariance function of the process and prove a result on stable vector autoregressive moving‐average representations of mixture vector autoregressive models. For these results, we apply techniques related to a Markovian representation of vector autoregressive moving‐average processes. Furthermore, we analyse maximum likelihood estimation of model parameters by using the expectation–maximization algorithm and propose a new iterative algorithm for getting the maximum likelihood estimates. Finally, we study the model selection problem and testing procedures. Several examples, simulation experiments and an empirical application based on monthly financial returns illustrate the proposed procedures.