Unveiling hidden dimensions: A novel bifactor approach to unraveling adverse childhood experiences.

Background: Adverse Childhood Experiences (ACEs) are associated with diverse negative health outcomes and are commonly screened for in primary care, research, and clinical practice. However, more research is needed surrounding the conceptualization, measurement, and application of ACEs measures.

Objective: This study examines the bifactor structure and internal reliability of a short, practical, and commonly used ACEs questionnaire and assesses how the factor structure is associated with correlates of ACEs.

LGBTQ+ cultural-competence training effectiveness: Mental health organization and therapist survey outcome results from a pilot randomized controlled trial.

Lesbian, gay, bisexual, transgender, queer/questioning and other sexual and gender diverse (LGBTQ+) persons frequently lack access to mental health service organizations (MHOs) and therapists who are competent with LGBTQ+ clients. Existing continuing education programmes to better equip therapists to work with LGBTQ+ clients are often not widely accessible or skills focused, evaluated for effectiveness and inclusive of MHO administrators who can address the organizational climate needed for therapist effectiveness. A virtual, face-to-face, multi-level (administrators and therapists) and multi-strategy (technical assistance, workshop and clinical consultations) LGBTQ+ cultural competence training-the Sexual and Gender Diversity Learning Community (SGDLC)-was tested in a pilot randomized controlled trial.

Religion/Spirituality, Stress, and Resilience Among Sexual and Gender Minorities: The Religious/Spiritual Stress and Resilience Model.

Although many sexual and gender minorities (SGMs) consider themselves religious or spiritual, the impact of this religiousness or spirituality (RS) on their health is poorly understood. We introduce the religious/spiritual stress and resilience model (RSSR) to provide a robust framework for understanding the variegated ways that RS influences the health of SGMs. The RSSR bridges existing theorizing on minority stress, structural stigma, and RS-health pathways to articulate the circumstances under which SGMs likely experience RS as health promoting or health damaging.

Is Conservative Religiousness Inherently Associated with Poorer Health for Sexual Minorities?

Results of path analysis involving sexual minority participants (N = 1317) from diverse sociopolitical contexts revealed health outcomes to be associated with internalized homonegativity and the resolution of conflict between religious and sexual minority identities. Contrary to expectations, several markers of religiousness were not directly associated with either improved or worsened health outcomes for depression or anxiety. However, religious activity moderated the influence of internalized homonegativity (IH) on depression such that IH was less strongly related to depression among individuals who frequently attended religious services than among individuals who infrequently attended religious services.

Northward displacement of optimal climate conditions for ecotypes of Eriophorum vaginatum L. across a latitudinal gradient in Alaska.

Plants are often genetically specialized as ecotypes attuned to local environmental conditions. When conditions change, the optimal environment may be physically displaced from the local population, unless dispersal or in situ evolution keep pace, resulting in a phenomenon called adaptational lag. Using a 30-year-old reciprocal transplant study across a 475 km latitudinal gradient, we tested the adaptational lag hypothesis by measuring both short-term (tiller population growth rates) and long-term (17-year survival) fitness components of Eriophorum vaginatum ecotypes in Alaska, where climate change may have already displaced the optimum.

Synergistic effects of climate change and harvest on extinction risk of American ginseng.

Over the next century, the conservation of biodiversity will depend not only on our ability to understand the effect of climate change, but also on our capacity to predict how other factors interact with climate change to influence species viability. We used American ginseng (Panax quinquefolius L.), the United States' premier wild-harvested medicinal, as a model system to ask whether the effect of harvest on extinction risk depends on changing climatic conditions.

Ecology and conservation of ginseng (Panax quinquefolius) in a changing world.

American ginseng (Panax quinquefolius L.) is an uncommon to rare understory plant of the eastern deciduous forest. Harvesting to supply the Asian traditional medicine market made ginseng North America's most harvested wild plant for two centuries, eventually prompting a listing on CITES Appendix II.

Clinal variation in stomatal characteristics of an Arctic sedge, Eriophorum vaginatum (Cyperaceae).

Premise Of The Study: In a large reciprocal transplant experiment, Eriophorum vaginatum tussocks transplanted along a latitudinal gradient in Alaska's interior exhibited genetic differentiation and phenotypic plasticity for vegetative traits. Using the same tussocks 30 yr later, we used estimates of growing season temperature at each site to ask whether there was a climatic cline for stomatal density, size, and conductance.

Methods: We created impressions of the abaxial leaf surfaces of the transplanted individuals for viewing under a microscope and measured stomatal density (SD) and length (SL) for 224 individuals.

Experimental test for adaptive differentiation of ginseng populations reveals complex response to temperature.

Background And Aims: Local climatic adaptation can influence species' response to climate change. If populations within a species are adapted to local climate, directional change away from mean climatic conditions may negatively affect fitness of populations throughout the species' range.

Methods: Adaptive differentiation to temperature was tested for in American ginseng (Panax quinquefolius) by reciprocally transplanting individuals from two populations, originating at different elevations, among temperature treatments in a controlled growth chamber environment.

Evidence of local adaptation in the demographic response of American ginseng to interannual temperature variation.

Bioclimatic envelope models of species' responses to climate change are used to predict how species will respond to increasing temperatures. These models are frequently based on the assumption that the northern and southern boundaries of a species' range define its thermal niche. However, this assumption may be violated if populations are adapted to local temperature regimes and have evolved population-specific thermal optima.

Effects of self-pollination and outcrossing with cultivated plants in small natural populations of American ginseng, Panax quinquefolius (Araliaceae).

For rare plants, self-pollination and inbreeding can increase in small populations, while unusual levels of outcrossing can occur through restoration efforts. To study both inbreeding and outcrossing, we performed experimental pollinations using Panax quinquefolius (American ginseng), a wild-harvested plant with a mixed mating system. For inbreeding, plants were either cross-pollinated within the population or self-pollinated, which resulted in a higher proportion of seeds from self-pollinated flowers.

The interaction between mobile DNAs and their hosts in a fluctuating environment.

The interaction between mobile DNA sequences and their hosts raises important questions in the context of hosts which reproduce clonally with only rare horizontal transmission between clones. The activity of some mobile DNAs as reversible mutators of genes raises the possibility that, in a fluctuating environment, cells may gain an advantage if they have mobile DNAs which mutate genes whose inactivation is favoured in one of the environments that the population encounters. Here we analyse a model of this process and ask what would be the optimal rate of transposition in a population whose elements are maintained by this mechanism.

Deer browsing and population viability of a forest understory plant.

American ginseng is the premier medicinal plant harvested from the wild in the United States. In this study, seven populations of ginseng plants were censused every 3 weeks during the growing season over 5 years to monitor deer browse and harvest and to project population growth and viability. The minimum viable population size was approximately 800 plants, a value greater than that of all populations currently being monitored.

ENVIRONMENT-DEPENDENCE OF QUANTITATIVE GENETIC PARAMETERS IN IMPATIENS PALLIDA.

Population response to selection depends on the presence of additive genetic variance for traits under selection. When a population enters an alien environment, environment-induced changes in the expression of genetic variance may occur. These could have large effects on the response to selection.

PHENOTYPIC SELECTION IN AN ARTIFICIAL POPULATION OF IMPATIENS PALLIDA: THE IMPORTANCE OF THE INVISIBLE FRACTION.

Multiple-regression techniques for measuring phenotypic selection have been used in a large number of recent field studies. One benefit of this technique is its ability to discern the direct action of selection on traits by removing effects of correlated traits. However, covariation among traits expressed at different stages in an organism's life history is often poorly estimated because individuals that die before reaching adulthood cannot be measured as adults.

Interactive effects of resource availabilities and defoliation on photosynthesis, growth, and mortality of red oak seedlings.

Responses of forest trees to defoliation by insects such as gypsy moth vary greatly from site to site and from individual to individual. To determine whether some of this variation could be explained by variation in other stress factors, red oak (Quercus rubra L.) seedlings were exposed to low and high light, water, mineral nutrient, and defoliation treatments, in a complete factorial design in a greenhouse.