University of Wyoming

Most sexual assault survivors disclose to informal supporters and receive both negative and positive social reactions. Converging evidence suggests that the first months after sexual assault are a period of increased support-seeking that may be uniquely important to survivors’ recovery, especially among survivors at risk of chronic post-traumatic stress and alcohol misuse. However, no research has examined when and how often survivors talk about their assault and what social reactions they receive during this time. As such, the goal of this study was to characterize the day-to-day assault-related interactions and social reactions received by a high-risk group of survivors during the first months following sexual assault. Adult female survivors of past-10-week sexual assault with elevated assault-related post-traumatic stress and alcohol use ( N = 41) completed a baseline assessment and daily diaries over 21 days as part of a larger mHealth clinical trial. Results demonstrated that assault-related interactions occurred on an average of 24.4% of days (range: 1–14 days), were more likely to occur earlier in the daily dairy period, and decreased in frequency over time. Across days, most survivors (75%) received both positive and negative reactions in these interactions, whereas fewer (20%) received only positive reactions and no one received only negative reactions. These findings suggest that survivors commonly have assault-related interactions with their supporters in the initial aftermath of the assault and that receiving both positive and negative social reactions is typical. Findings could inform future early interventions aiming to improve supporter reactions and better support survivors’ recovery.

Researchers have explored artificial intelligence (AI) applications across educational contexts; however, there is a lack of meta-analysis focused on students with disabilities (SWDs). This study examined the overall effect of AI-based interventions on SWDs’ learning outcomes in 29 (quasi-)experimental studies conducted globally. We used cultural historical activity theory (CHAT) to explore how the effect was moderated by factors, including participant-, AI-, AI-SWD interaction-, intervention-, and methodology-related characteristics. Results indicated a medium effect (Hedge’s g = 0.588) of interventions operating through robots, computer software, and intelligent VR systems. There were no statistically significant moderators. Regardless, this study contributes to a holistic understanding of historical dimensions of AI applications for SWDs and offers critical theoretical implications for future investigations. We call for more rigorous research to explore AI that not only ensures accessibility but also promotes opportunities for SWDs to take an agentic role in participating in and contributing to AI-mediated learning activities.

Those calling for police reformation have advocated for reducing police-led response to mental health crises and instead, transferring these calls to adequately trained mental health professionals. This support program is commonly referred to as the mental health, “co-responder” model. The empirical evidence currently supporting co-responder models suggests inconsistencies in program development, unclear objectives, and a lack of standards for rigorous program evaluation. Thus, the purpose of this review was to identify co-responder models throughout the United States and assess the anecdotal in-/effectiveness of these programs as well as potential factors contributing to the hindrance of or boost in sustainability of this reformative support model. The Transform911 initiative facilitated by the University of Chicago Health Lab from 2020 to 2022 was utilized as the foundation of this review. Findings suggest a consistent theme across program objectives and render important recommendations for current and future co-responder teams.

This research investigates how reforms propagate through weighted socio-ecological systems (SES) multiplex networks. These networks represent multiple interconnected layers of economic, social, and ecological interactions, with each connection indicating its strength. Advanced network science techniques are employed to analyze these dynamics. The study focuses on the influence of central, well-connected nodes, which are key points with numerous connections, on the entire system. It examines the roles of hub-attracting Laplacians, which strengthen central nodes, and hub-repelling Laplacians, which discourage centralization. By analyzing these networks with a normalized Laplacian matrix, a mathematical tool that balances node connections, the research highlights the importance of strong, interconnected networks for successful reform. It introduces a new perspective on stability, demonstrating that resilience, or the ability to absorb disturbances, is crucial for sustainability. Ultimately, the research suggests that these complex systems can be controlled and improved through systematic policy changes.

Caring for newborn offspring hampers resource acquisition of mammalian females, curbing their ability to meet the high energy expenditure of early lactation. Newborns are particularly vulnerable, and, among the large herbivores, ungulates have evolved a continuum of neonatal antipredator tactics, ranging from immobile hider (such as roe deer fawns or impala calves) to highly mobile follower offspring (such as reindeer calves or chamois kids). How these tactics constrain female movements around parturition is unknown, particularly within the current context of increasing habitat fragmentation and earlier plant phenology caused by global warming. Here, using a comparative analysis across 54 populations of 23 species of large herbivores from 5 ungulate families (Bovidae, Cervidae, Equidae, Antilocapridae and Giraffidae), we show that mothers adjust their movements to variation in resource productivity and heterogeneity according to their offspring’s neonatal tactic. Mothers with hider offspring are unable to exploit environments where the variability of resources occurs at a broad scale, which might alter resource allocation compared with mothers with follower offspring. Our findings reveal that the overlooked neonatal tactic plays a key role for predicting how species are coping with environmental variation.

Background Access to salmon resources is vital to coastal brown bear (Ursus arctos) populations. Deciphering patterns of travel allowing coastal brown bears to exploit salmon resources dispersed across the landscape is critical to understanding their behavioral ecology, maintaining landscape connectivity for the species, and developing conservation strategies. Methods We modeled travel behavior of 51 radio-collared female Kodiak brown bears (U. a. middendorffi) from 2008 to 2015 during the sockeye salmon (Oncorhynchus nerka) stream spawning season to identify landscape patterns associated with travel pathways. To accomplish this, we first identified behavioral states of marked individuals, and then developed a resource selection function (RSF) to evaluate environmental covariates that were predictors of selection during travel behavior. Results Landcover edges, elderberry-salmonberry stands, lowland tundra, elevation, terrain position, and stream length influenced selection for travel corridors. The RSF validated well and was comparable to corridors identified by pathways used by bears while travelling. Conclusions Models identified spatial predictions of the relative probability of selection while bears were travelling during the salmon spawning season and identified areas that contained potential movement corridors important for bears inhabiting Kodiak Island. Our results characterized factors influencing travel, identified important movement corridors, and provided managers with information to make informed resource management decisions.

In this chapter, we discuss some practical issues in deploying soft robots. Specifically, we describe the practical advantages and problems arising from the conversion of industrial concrete hoses into soft continuum hose robots, for 3D printing of cement in the construction industry. “Robotizing” the inherent flexibility and maneuverability of hoses offers the potential for the creation and high fidelity repair of more complex structures than currently feasible. However, the inherent softness present in the hose structures presents practical problems. Hose compression can reduce the accuracy of the concrete print. We discuss this phenomenon, along with practical measures taken to address the issue.

The emergence of vascular plants, such as Cooksonia, had a profound impact on Earth’s Early Paleozoic biogeochemical cycles (e.g. atmospheric oxygen, nitrogen and CO2), potentially triggering global environmental and biological changes. However, the timing of Cooksonia’s terrestrial emergence remains elusive as phylogenetic models, microfossils and macrofossils provide different timings for land colonization by vascular plants. Here, hundreds of zircon grains from three siltstones were dated using Laser Ablation-Inductively Couple Plasma-Mass Spectrometry (LA-ICP-MS). The study presents detrital zircon U-Pb dates, which refine the current biostratigraphy ages assigned to Cooksonia macrofossils from the three oldest sites globally. Specifically, siltstones hosting Cooksonia macrofossils from Borrisnoe Mountain (Ireland) and Capel Horeb (Wales) yield Gorstian–Homerian maximum depositional ages (MDAs) of 426 ± 2 Ma and 427 ± 2 Ma, respectively. Additionally, Cwm Graig Ddu (Wales) yields a (Pridoli-Ludlow) maximum age of 423 ± 3 Ma. The findings provide the first detrital zircon U-Pb dates for the oldest Cooksonia macrofossils globally and contribute crucial maximum ages. These maximum ages are instrumental in refining future calibrations of molecular clocks and improving phylogenetic models, thus contributing significantly to a better understanding of Cooksonia’s evolutionary history, including its environmental and ecological impacts.

The synthetic indigo used to dye denim fades rapidly under sunlight, so improving lightfastness is important. Previously approaches were taken separately on different natural-dyed cotton by increasing the dye’s concentration and applying synthetic antioxidants to improve the lightfastness of dyed samples. Little study was done to enhance lightfastness on cotton dyed using natural indigo and woad dye with different reducing agents, applying natural antioxidant and increasing the dye concentration. So, this study focuses on improving the lightfastness of indigo and woad dyed cotton instead of using synthetic indigo dye for sustainable textile coloration along with fructose as a natural and thiourea as synthetic reducing agent, varying dye concentration from 3 to 7 g/l and applying natural antioxidants lemon’s raw juice after dyeing. FTIR analysis was done to confirm the presence of lemon’s raw juice after treatment. Delta E was used as a lightfastness parameter instead of using a grey scale rating for quantitative analysis. From the lightfastness results, lemon-treated and using 3 g/l dye concentration dyed samples most of the cases showed better lightfastness results along with a low color fading rate than untreated dyed samples. Besides, samples using thiourea dioxide have better lightfastness properties than samples using fructose. Further statistical analysis (i.e., bootstrapping for resampling) was also done to validate these results and those statistical models confirmed those decisions.

Introduction Although young adults use electronic nicotine delivery systems (ENDS) more often than any other demographic group, most are interested in cessation; however, little is known about their cessation experiences. The present study examined characteristics associated with quit attempts, reasons for quitting and resources utilized, and psychological symptoms [i.e., depression, anxiety, anxiety sensitivity, attention-deficit/hyperactivity disorder (ADHD)] associated with cessation barriers. Method College-attending adults from six U.S. institutions who endorsed lifetime ENDS use (N=2007; 75% female) completed a one-hour online survey between Fall 2022-Spring 2023. Results More than half of participants (53%) made a cessation attempt; of those participants, more than half (53%) made multiple attempts. Male sex; college region; earlier ENDS initiation; higher ENDS dependence; disposable or pod device use; and past 30-day combustible use were associated with cessation attempts. Health concerns motivated many quit attempts (44%), although participants identified a range of reasons that converged with prior research. Unassisted cessation methods were most common [e.g., cold turkey (68%), willpower (53%)]. Although utilized far less often, replacing vaping with another activity, support from family/friends, nicotine replacement, and prescription cessation medications were perceived to be helpful. Anxiety sensitivity and ADHD symptoms were associated with more barriers to cessation, particularly with affect management and withdrawal. Conclusions ENDS quit attempts are common among young adults, particularly males and those with higher dependence, but largely are unassisted. Encouraging the use of multiple interventions and tailoring interventions to those with psychological vulnerabilities are critical next steps to improving young adults’ success with ENDS cessation. Implications Young adults are motivated to quit ENDS for a wide range of intra- and interpersonal reasons. However, their limited uptake of ENDS cessation resources suggests an opportunity to better publicize and increase access to these resources, particularly to digital resources, nicotine replacement therapy, and prescription cessation medications. To be maximally effective, cessation interventions should be multipronged and address the unique challenges faced by individuals with greater anxiety sensitivity and ADHD symptoms, prominent issues in this developmental stage.

Background: Most US children and adolescents do not meet recommended daily physical activity (PA) guidelines. Determinants of PA are complex; however, access to opportunities precedes actual PA engagement. Schools are well positioned to support student PA through the provision of physical education (PE) and before, during, and after school PA opportunities through comprehensive (ie, expanded) school PA programming. Monitoring access to school PE and PA opportunities is an essential function of public health. However, there are limited comprehensive data across K-12 settings. Therefore, the purpose of this study was to evaluate students' access to PE and expanded recreation time before, during, and after school PA opportunities in K-12 schools across 25 US states. Methods: The US Physical Education and Physical Activity Policy questionnaire was completed by 4845 K-12 PE teachers across 25 states, representing diverse geographical regions, with responses standardized across varying academic calendars. Descriptive statistics were used to illustrate access to PE and PA opportunities. Results: Access to PE and PA varied, with elementary schools generally providing more opportunities than middle and high schools. There was an overall misalignment with national PE and recess recommendations. Limited before and after school PA opportunities were also reported. Discussion: The relative dearth of access to PE and expanded PA opportunities currently available to students in relation to national guidelines shows a need for states to prioritize expanding access to PE and recreational PA to reduce disparities. To ensure more equitable student access, collaborative efforts among educators, policymakers, and stakeholders are essential.

We report the first identifications of species and element used to produce Paleolithic bone needles. Archaeologists have used the tailored, fur-fringed garments of high latitude foragers as modern analogs for the clothes of Paleolithic foragers, arguing that the appearance of bone needles and fur bearer remains in archaeological sites c. 40,000 BP is indirect evidence for the advent of tailored garments at this time. These garments partially enabled modern human dispersal to northern latitudes and eventually enabled colonization of the Americas ca. 14,500 BP. Despite the importance of bone needles to explaining global modern human dispersal, archaeologists have never identified the materials used to produce them, thus limiting understanding of this important cultural innovation. We use Zooarchaeology by Mass Spectrometry (ZooMS) and Micro-CT scanning to establish that bone needles at the ca. 12,900 BP La Prele site (Wyoming, USA) were produced from the bones of canids, felids, and hares. We propose that these bones were used by the Early Paleoindian foragers at La Prele because they were scaled correctly for bone needle production and readily available within the campsite, having remained affixed to pelts sewn into complex garments. Combined with a review of comparable evidence from other North American Paleoindian sites, our results suggest that North American Early Paleoindians had direct access to fur-bearing predators, likely from trapping, and represent some of the most detailed evidence yet discovered for Paleoindian garments.

Introduction The Faroe Islands are a small archipelago located in the North Atlantic likely colonized by a small group of founders sometime between 50 and 300 CE. Post colonization, the Faroese people have been largely isolated from admixture with mainland and other island populations in the region. As such, the initial founder effect and subsequent genetic drift are likely major contributors to the modern genetic diversity found among the Faroese. Methods In this study, we assess the utility of Y-chromosomal microsatellites to detect founder effect in the Faroe Islands through the construction of haplotype networks and a novel empirical method, mutational distance from modal haplotype histograms (MDM), for the visualization and evaluation of population bottlenecks. Results We compared samples from the Faroe Islands and Iceland to possible regional source populations and documented a loss of diversity associated with founder events. Additionally, within-haplogroup diversity statistics reveal lower haplotype diversity and richness within both the Faroe Islands and Iceland, consistent with a small founder population colonizing both regions. However, in the within haplogroup networks, the Faroe Islands are found within the larger set of potential source populations while Iceland is consistently found on isolated branches. Moreover, comparisons of within-haplogroup MDM histograms document a clear founder signal in the Faroes and Iceland, but the strength of this signal is haplogroup-dependent which may be indicative of more recent admixture or other demographic processes. Discussion The results of the current study and lack of conformity between Icelandic and Faroese haplotypes implies that the two populations were founded by different paternal gene pools and there is no detectable post-founder admixture between the two groups.

There is a critical need to generate age- and sex-specific survival curves to characterize chronological aging consistently across nonhuman primates (NHP) used in biomedical research. Sex-specific Kaplan–Meier survival curves were computed in 12 translational aging models: baboon, bonnet macaque, chimpanzee, common marmoset, coppery titi monkey, cotton-top tamarin, cynomolgus macaque, Japanese macaque, pigtail macaque, rhesus macaque, squirrel monkey, and vervet/African green. After employing strict inclusion criteria, primary results are based on 12,269 NHPs that survived to adulthood and died of natural/health-related causes. A secondary analysis was completed for 32,616 NHPs that died of any cause. Results show a pattern of reduced male survival among catarrhines (African and Asian primates), especially macaques, but not platyrrhines (Central and South American primates). For many species, median lifespans were lower than previously reported. An important consideration is that these analyses may offer a better reflection of healthspan than lifespan since research NHPs are typically euthanized for humane welfare reasons before their natural end of life. This resource represents the most comprehensive characterization of sex-specific lifespan and age-at-death distributions for 12 biomedically relevant species, to date. These results clarify relationships among NHP ages and provide a valuable resource for the aging research community, improving human-NHP age equivalencies, informing investigators of expected survival rates, providing a metric for comparisons in future studies, and contributing to understanding of factors driving lifespan differences within and among species.