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After assent/consent were obtained, the adolescent was administered questionnaires. For the current analyses, only those who indicated they had ever had a romantic relationship were included (n = 306). Hypotheses were tested used path modeling in Mplus 7.0.

CM history was associated with lower self-perceptions in all domains. Only behavioral (β = 0.15, p= 0.02) and scholastic (β= -0.14, p= 0.04) self- perceptions predicted proportion of later positive romantic relationships. A significant mediation effect was found only for behavioral self- perceptions.

Interventions aimed at bolstering self- perceptions and engagement in positive behaviors could strengthen positive relationships for youth with CM and child welfare experiences.

Interventions aimed at bolstering self- perceptions and engagement in positive behaviors could strengthen positive relationships for youth with CM and child welfare experiences.

Childhood adversities (CAs) have been linked with unfavorable development; however, the chronic trajectories of multiple CAs and possible heterogeneous effects are understudied.

This study examined the trajectories of multiple CAs and their associations with mental health outcomes in adolescence and investigated the buffering effect of parenting practices.

We used population-representative data from the Taiwan Education Panel Survey (2005 and 2007, n = 10,416).

This study was based on retrospectively self-reporting of six CAs, namely physical abuse, family economic hardship, parental problematic drinking, parental catastrophic health problems, parental divorce, and parental death, at three developmental periods early childhood, middle childhood, and early adolescence. Group-based multitrajectory modeling and multiple regressions were used to identify distinct trajectories of multiple CAs and evaluate the association estimates.

A total of four trajectory groups were identified increasing family econoenting practices in families experiencing economic hardship is a potentially valuable resilience strategy.The failure behavior and mechanical properties of soft tissue can be characterized by conducting uniaxial tensile tests on small sectioned specimens, called test coupons. An ideal coupon geometry for tensile testing is a dumbbell shape (dog-bone), yet the cost and time required to fabricate custom steel punches to cut dumbbell-shaped coupons has hindered their universal application in biomechanics research. In this study, we developed an economical and reliable cutting device that can extract dumbbell-shaped coupons from soft biological tissue. The novel device, called Print-A-Punch, uses three-dimensional (3D) printed components in combination with standard fasteners and replaceable flexible razors. We identified design factors that influence the dimensional accuracy and symmetry of elastomer coupons extracted using this cutting device, and demonstrated its use on bovine meniscus. selleck products Advantages of this 3D printed device include a fast fabrication time, low material cost, good accuracy, replaceable blades, and an ability to scale coupon dimensions for specific tissues and experiments. By reducing the cost and time to cut accurate dumbbell-shaped coupons, this technology can facilitate the broad adoption of standard test methods that improve the quality and reproducibility of tensile tests in soft biological tissue. Researchers can freely download a set of STL files from this study to build their own Print-A-Punch device (https//boisestate.edu/coen-ntm/technology/print-a-punch).Performance during seated balancing is often used to assess trunk neuromuscular control, including evaluating impairments in back pain populations. Balancing in less challenging environments allows for flexibility in control, which may not depend on health status but instead may reflect personal preferences. To make assessment less ambiguous, trunk neuromuscular control should be maximally challenged. Thirty-four healthy subjects balanced on a robotic seat capable of adjusting rotational stiffness. Subjects balanced while rotational stiffness was gradually reduced. The rotational stiffness at which subjects could no longer maintain balance, defined as critical stiffness (kCrit), was used to quantify the subjects' trunk neuromuscular control. A higher kCrit reflects poorer control, as subjects require a more stable base to balance. Subjects were tested on three days separated by 24 hours to assess test-retest reliability. Anthropometric (height and weight) and demographic (age and sex) influences on kCrit and its reliability were assessed. Height and age did not affect kCrit; whereas, being heavier (p less then 0.001) and female (p = 0.042) significantly increased kCrit. Reliability was also affected by anthropometric and demographic factors, highlighting the potential problem of inflated reliability estimates from non-control related attributes. kCrit measurements appear reliable even after removing anthropometric and demographic influences, with adjusted correlations of 0.612 (95%CI 0.433-0.766) versus unadjusted correlations of 0.880 (95%CI 0.797-0.932). Besides assessment, trainers and therapists prescribing exercise could use the seated balance task and kCrit to precisely set difficulty level to a percentage of the subject's stability threshold to optimize improvements in trunk neuromuscular control and spine health.Excessive loads on the human spine is recognized as a risk factor for back injuries/pain. Various lifting analysis tools such as musculoskeletal models, regression equations and NIOSH (National Institute for Occupational Safety and Health) lifting equation (NLE) have been proposed to evaluate and mitigate associated risks during manual material handling activities. Present study aims to compare predicted spinal loads from 5 different lifting analysis tools as well as to critically evaluate the NIOSH recommended weight limit (RWL). Spinal loads were estimated under different symmetric/asymmetric lifting tasks in which hand-load mass at each task was set based on RWL from NLE. Estimated intradiscal pressures (IDPs) of various tools were also compared with in vivo measurements. We compared RWL by NLE versus our estimations of RWL calculated from our regression equations using biomechanical criteria (compression 1000 N. Although RWLs estimated by NLE was body weight independent, body weight substantially altered RWLs estimated from our regression equations.