Search

Factors driving freshwater salinization syndrome (FSS) influence the severity of impacts and chances for recovery. We hypothesize that spread of FSS across ecosystems is a function of interactions among five state factors: human activities, geology, flowpaths, climate, and time. (1) Human activities drive pulsed or chronic inputs of salt ions and mobilization of chemical contaminants. (2) Geology drives rates of erosion, weathering, ion exchange, and acidification-alkalinization. (3) Flowpaths drive salinization and contaminant mobilization along hydrologic cycles. (4) Climate drives rising water temperatures, salt stress, and evaporative concentration of ions and saltwater intrusion. (5) Time influences consequences, thresholds, and potentials for ecosystem recovery. We hypothesize that state factors advance FSS in distinct stages, which eventually contribute to failures in systems-level functions (supporting drinking water, crops, biodiversity, infrastructure, etc.). We present future research directions for protecting freshwaters at risk based on five state factors and stages from diagnosis to prognosis to cure.

Introduction The use of illicit substances, including opioids, is a serious public health issue in the United States. While there are reports of the impact of the ongoing opioid crisis on adults, a new focus has emerged on how parental substance misuse (PSM) affects children. This study explored existing screening and assessment practices and services for children and families affected by PSM across different service sectors in one state. The purpose of the study was to identify opportunities for training, policy development, and practice improvement related to identifying PSM and linking children and parents to services. Methods Interviews (n = 15) with professionals from five service sectors (mental health, primary care, schools, community programs, and law enforcement) were used to inform development of a state-wide survey of the same groups (n = 498) to assess current practices, attitudes, knowledge, and training needs related to child screening of PSM. The survey was piloted using cognitive interviewing (n = 9) before it was distributed. Results Fewer than 20% of survey respondents reported using standardized tools specific to screening PSM. Informal assessment practices predominate, though 60% of respondents saw value in adopting more standardized PSM screening. Attitudes about PSM and screening varied among sectors but interest in training was high. Discussion Results indicate a need for more systematic PSM screening, cross-sector training and practice discussions, and policies to support early identification of children affected by PSM. Ramifications of these findings and recommendations are discussed., Author(s): Erin Knight [sup.1] , Rebecca L. Butcher [sup.1] , Mary Kay Jankowski [sup.2] Author Affiliations: (1) grid.414049.c, Center for Program Design and Evaluation, Geisel School of Medicine At Dartmouth, [...]

Innate social behaviours emerge from neuronal circuits that interpret sensory information on the basis of an individual's own genotype, sex and experience. The regulated aggregation behaviour of the nematode Caenorhabditis elegans, a simple animal with only 302 neurons, is an attractive system to analyse these circuits. Wild social strains of C. elegans aggregate in the presence of specific sensory cues, but solitary strains do not. Here we identify the RMG inter/motor neuron as the hub of a regulated circuit that controls aggregation and related behaviours. RMG is the central site of action of the neuropeptide receptor gene npr-1, which distinguishes solitary strains (high npr-1 activity) from wild social strains (low npr-1 activity); high RMG activity is essential for all aspects of social behaviour. Anatomical gap junctions connect RMG to several classes of sensory neurons known to promote aggregation, and to ASK sensory neurons, which are implicated in male attraction to hermaphrodite pheromones. We find that ASK neurons respond directly to pheromones, and that high RMG activity enhances ASK responses in social strains, causing hermaphrodite attraction to pheromones at concentrations that repel solitary hermaphrodites. The coordination of social behaviours by RMG suggests an anatomical hub-and-spoke model for sensory integration in aggregation, and points to functions for related circuit motifs in the C. elegans wiring diagram.

We describe racially discordant oncology encounters involving EOL decision-making. Fifty-eight provider interviews were content analyzed using the tenets of problematic integration theory. We found EOL discussions between non-Black providers and their Black patients were often complex and anxiety-inducing. That anxiety consisted of (1) ontological uncertainty in which providers characterized the nature of Black patients as distrustful, especially in the context of clinical trials; (2) ontological and epistemological uncertainty in which provider intercultural incompetency and perceived lack of patient health literacy were normalized and intertwined with provider assumptions about patients' religion and support systems; (3) epistemological uncertainty as ambivalence in which providers' feelings conflicted when deciding whether to speak with family members they perceived as lacking health literacy; (4) divergence in which the provider advised palliative care while the family desired surgery or cancer-directed medical treatment; and (5) impossibility when an ontological uncertainty stance of Black distrust was seen as natural by providers and therefore impossible to change. Some communication strategies used were indirect stereotyping, negotiating, asking a series of value questions, blame-guilt framing, and avoidance. We concluded that provider perceptions of Black distrust, religion, and social support influenced their ability to communicate effectively with patients. [ABSTRACT FROM AUTHOR]

This paper reports the results of research into parental experiences of the Somerset (UK) "Time Together" home visiting intervention, with regards to its impact on the parent-child relationship. The research was carried out using an Attachment Theory lens in order to understand the qualitative experiences of seven parents of children in the early years who were identified as being socially isolated and/or having difficulties relating to their child. The key findings were that parents experienced a change within their notion of self, seeing their child as a separate self and seeing the world more through their child's eyes. They experienced a wider range of play activities which brought about greater levels of attunement and enjoyment. The parent and home visitor relationship served to empower parents. A flow diagram was created to illustrate the processes of the research interactions and outcomes. This provides a model of how parents can be supported to experience greater enjoyment within their relationship with their child, and increase their level of social engagement.