SENSITIVITY ANALYSIS WITH INTERACTION EFFECTS

The purpose of this paper is to extend the sensitivity analysis methodology as it applies to linear programming. The methodology developed herein is concerned with those changes in a technological coefficient that cause simultaneous changes in the relevant cost coefficients of the objective function. By proceeding from the definitions of feasibility and optimality, the authors develop formulas for determining bounds on the extent to which a technological coefficient, which has a predetermined effect on the corresponding cost coefficient, can vary without changing the optimal set of activities. After the formulas are developed, their use is demonstrated on a product-mix problem. This technique is of interest because changes in the rate at which an input is utilized can be expected to change the cost per unit of a resulting product. This interdependence should be recognized whenever a sensitivity analysis is performed on a technological coefficient of either a cost minimization or a contribution margin maximization problem.     

Racial microaggressions and black social work students: a call to social work educators for proactive models informed by social justice

ABSTRACT

With efforts to create and sustain racial diversity and inclusive practices at institutions of higher education, a corollary emphasis on proactive implementations to support students of color in these environments is essential. Informed by a commitment to social justice, there are rich opportunities for social work to take leadership in strategizing new ways of approaching and prioritizing the wellness and success of students of color. This paper serves to explore the impact of racism specific to Black students by applying the theoretical lens of Racial Battle Fatigue (RBF) to challenge social work education in confronting racialized experiences within their programs. A modified, context-specific framework is proposed that (1) defines microaggressions in social work education programs, 2) prompts critically informed dialogue to enhance how social work as a profession understands the prevalence and role of microaggressions in social work educational contexts, and (3) explores considerations for the unique needs and challenges of Black social work students in an effort to inform strategies to most effectively recruit, retain, support and empower.     

Assessment of an e-training tool for college students to improve accuracy and reduce effort associated with reading nutrition labels

Objective: Nutrition labels are often underutilized due to the time and effort required to read them. We investigated the impact of label-reading training on effort, as well as accuracy and motivation. Participants: Eighty college students (21 men and 59 women). Methods: The training consisted of a background tutorial on nutrition followed by three blocks of practice reading labels to decide which of two foods was the relatively better choice. Label-reading effort was assessed using an eye tracker and motivation was assessed using a 6-item scale of healthy food-choice empowerment. Results: Students showed increases in label-reading accuracy, decreases in label-reading effort, and increases in empowerment. Conclusions: The nutrition label e-training tool presented here, whether used alone or as part of other wellness and health programs, may be an effective way to boost students’ label-reading skills and healthy food choices, before they settle into grocery shopping habits.     

Childhood trauma and problem behavior: Examining the mediating roles of experiential avoidance and mindfulness processes

Objective: Childhood trauma is associated with a variety of risky, unhealthy, or problem behaviors. The current study aimed to explore experiential avoidance and mindfulness processes as mechanisms through which childhood trauma and problem behavior are linked in a college sample. Participants: The sample consisted of college-aged young adults recruited November-December, 2016 (N = 414). Methods: Participants completed self-report measures of childhood trauma, current problem behavior, experiential avoidance, and mindfulness processes. Bootstrapped mediation analyses examined the mechanistic associations of interest. Results: Mediation analyses indicated that experiential avoidance was a significant mediator of the association between childhood trauma and problem behavior. Additionally, multiple mediation analyses indicated that specific mindfulness facets–act with awareness and nonjudgment of inner experience–significantly mediated the same association. Conclusions: Interventions for college students who have experienced childhood trauma might profitably target mechanisms such as avoidance and mindfulness in order to minimize engagement in problem behavior.     

Chronic pain,pain severity and analgesia use in Australian women of reproductive age

Background

The increasing prevalence and adverse outcomes associated with opioid analgesia use in women of reproductive age have become a significant public health issue internationally, with use during pregnancy potentially affecting maternal and infant health outcomes.

Longitudinal Patterns in Parent and Friend Emotion Socialization: Associations With Adolescent Emotion Regulation

Adolescents learn about emotions through interacting with parents and friends, though there is limited longitudinal research on this topic. This study examined longitudinal patterns in parent and friend emotion socialization and adolescent emotion regulation. Eighty‐seven adolescents reported on parent and friend emotion socialization. Parents reported on adolescent emotion regulation. Parents’ responses were stable over time and across gender. Friends of girls reciprocated negative emotions more and were less punitive over time, whereas friends of boys increased in comforting and decreased in neglect of negative emotions. Parents and friends evidenced unique effects on adolescent emotion regulation, and the effect of friend socialization responses differed for girls and boys. Future research should examine combinatory influences of multiple socializers on adolescent adjustment.     

Adolescent Fathers: What We Know and What We Need to Know

Research into adolescent parenting involvement has focused primarily on mothers while neglecting fathers. This article concentrates on factors that influence the parental involvement of adolescent fathers. These factors must be acknowledged and addressed by practitioners working with adolescent parents. Issues relevant to the parental involvement of African-American adolescent fathers are highlighted in order to balance the negative portrayal this particular group continues to experience. Implications and suggestions for social work practitioners, policy makers, and social researchers are also discussed.     

Childhood and adult sexual abuse: relationships with alcohol and other psychoactive drug use

Questions concerning sexual abuse before and after the age of 16 years were included in a general population survey of a representative sample of 1052 UK women and 975 UK men. A total of 12.5% of women reported experiencing some form of sexual abuse before the age of 16 years. The corresponding ?gures for men in this category were 11.7%. After the age of 16, the ?gure for women remained at this level. However, the proportion of men reporting these traumatic experiences dropped to 3.2%. Sexual abuse both pre and post age 16 was associated with being single or cohabiting, with higher levels of cigarette‐smoking, alcohol consumption, experience of alcohol‐related problems and use of illicit drugs. The relationship between drinking and other forms of psychoactive drug use and sexual abuse is complex. Some possible explanations for this connection and its therapeutic and practical implications are discussed. Copyright © 2004 John Wiley & Sons, Ltd.