Patient and Caregiver Satisfaction With the Brain Injury Rehabilitation: Improving the Transition Experience (BRITE) Intervention.

OBJECTIVE: To ascertain patient and caregiver satisfaction with an individualized case management intervention to improve transition from inpatient rehabilitation care to the community after traumatic brain injury (TBI). SETTING: Participants from 6 National Institute on Disability, Independent Living, and Rehabilitation Research-funded TBI Model Systems sites in the United States. PARTICIPANTS: Adult, English-speaking patients with TBI who had moderate-to-severe TBI and were discharged from a TBI Model Systems site and who were in the intervention arm of the Brain Injury Rehabilitation: Improving the Transition Experience pragmatic clinical trial, as well as their caregivers. DESIGN: A survey of participants in the intervention arm, which included an individualized case management program administered by a TBI Care Manager (TCM) who facilitated resource connection, education, and support. MAIN MEASURES: Satisfaction with intervention was measured through Likert-scaled and open-ended questions. The survey was administered verbally through telephone, audio-recorded, and transcribed. Descriptive statistics were calculated for categorical variables, and content analysis was conducted for open-ended responses. RESULTS: Patient and caregiver participants were satisfied with the intervention and highlighted the benefits of the interpersonal and practical support provided by the TCM. Participants identified the need for a more intensive intervention and clear expectations of the TCM role, as well as gaps in available medical and rehabilitation services in the community, as areas for improvement. CONCLUSION: Patients with TBI and their caregivers reported satisfaction with the individualized case management program in supporting their transition from inpatient rehabilitation to the community. Further research is needed to understand the impact on outcomes.

Proteinuria in thrombotic microangiopathy is associated with partial podocytopathy.

BACKGROUND: Thrombotic microangiopathy (TMA) results in acute kidney injury, but the cause of heavy proteinuria in this disorder is puzzling. The goal of this study was to determine if there were significant effacement of foot processes and CD133-positive hyperplastic podocytes in TMA to explain the proteinuria. METHODS: The study included 12 negative controls (renal parenchyma removed from renal cell carcinoma) and 28 thrombotic microangiopathy due to different etiologies. The percent of foot process effacement was estimated, and proteinuria level was obtained for each TMA case. Both groups of cases were stained for CD133 by immunohistochemical method, and the number of positive CD133 in hyperplastic podocytes was counted and analyzed. RESULTS: Nineteen (19) of 28 (68%) TMA cases had nephrotic range proteinuria (urine protein/creatinine >3). Twenty-one (21) of 28 (75%) TMA cases showed positive CD133 staining in scattered hyperplastic podocytes within Bowman's space but was absent in control cases. The percent of foot process effacement (56 ± 4%) correlated with proteinuria (protein/creatinine ratio 4.4 ± 0.6) (r = 0.46, p = .0237) in TMA group. CONCLUSION: Our data indicate that the proteinuria in TMA can be associated with significant effacement of foot processes. CD133-positive hyperplastic podocytes can be seen in the majority of TMA cases of this cohort, indicating a partial podocytopathy.

Neonatal bacterial meningitis: hearing screening and audiological monitoring outcomes.

OBJECTIVE: This study reviewed the outcomes of universal newborn hearing screening (UNHS) and ongoing hearing monitoring in children following recovery from neonatal bacterial meningitis to determine (a) whether screening may be a suitable alternative to diagnostic audiology for detecting permanent childhood hearing loss (PCHL) and (b) whether infants who pass UNHS should be monitored throughout childhood. DESIGN: Retrospective analysis of a UNHS database. STUDY SAMPLE: Data were extracted from the state-wide UNHS database for all children born in Queensland Australia between 1 September 2004 and 30 June 2020 with the risk factor of bacterial meningitis (in isolation or in combination with other risk factors) identified at the time of the UNHS. This cohort included 231 children. RESULTS: Results showed that all post-meningitic infants diagnosed with PCHL had a refer result on the UNHS or were medically excluded from screening. Additionally, no cases of PCHL were identified through the targeted surveillance program following a pass result on UNHS. CONCLUSIONS: UNHS may be sufficient to detect PCHL in post-meningitic neonates and routine audiological monitoring may not be required for children who pass the screen.

Understanding the Ephemeral Moment of COVID Avoidance Hotels: Lessons Learned from Acknowledging Housing as Central to Dignified Later Life.

Place and health are intricately bound. COVID has amplified system burdens and health risks within the housing care continuum, in which older adults with chronic illnesses are disproportionately represented. The paper identifies the health experiences of older adults with severe conditions living in and moving through temporary avoidance hotels during the COVID-19 pandemic. An interpretive descriptive approach was taken with qualitative chart data and provider observation to represent the experiences of 14 older avoidance hotel residents living with serious illnesses. Through provider documentation, we illustrate trends pre-pandemic, in the first nine months of the pandemic, and the second nine months. Such trends include strengths and opportunities such as the health-affirming nature of avoidance hotels, their potential in generating continuity of care and permanent housing, and synergy between harm reduction approaches and palliative care. Challenges were also identified in catering to the diverse medical, behavioral, and psychosocial-spiritual needs of older and seriously ill residents and the consequences of geographic dispersion on health care, health behaviors, and informal care networks. Through these strengths and challenges, avoidance hotels present essential lessons in considering future housing and healthcare intervention and implementation that addresses the needs of older seriously ill people facing homelessness and housing precarity.

Decoupling RNN Training and Testing Observation Intervals for Spectrum Sensing Applications.

Recurrent neural networks have been shown to outperform other architectures when processing temporally correlated data, such as from wireless communication signals. However, compared to other architectures, such as convolutional neural networks, recurrent neural networks can suffer from drastically longer training and evaluation times due to their inherent sample-by-sample data processing, while traditional usage of both of these architectures assumes a fixed observation interval during both training and testing, the sample-by-sample processing capabilities of recurrent neural networks opens the door for alternative approaches. Rather than assuming that the testing and observation intervals are equivalent, the observation intervals can be "decoupled" or set independently. This can potentially reduce training times and will allow for trained networks to be adapted to different applications without retraining. This work illustrates the benefits and considerations needed when "decoupling" these observation intervals for spectrum sensing applications, using modulation classification as the example use case. The sample-by-sample processing of RNNs also allows for the relaxation of the typical requirement of a fixed time duration of the signals of interest. Allowing for variable observation intervals is important in real-time applications like cognitive radio where decisions need to be made as quickly and accurately as possible as well as in applications like electronic warfare in which the sequence length of the signal of interest may be unknown. This work examines a real-time post-processing method called "just enough" decision making that allows for variable observation intervals. In particular, this work shows that, intuitively, this method can be leveraged to process less data (i.e., shorter observation intervals) for simpler inputs (less complicated signal types or channel conditions). Less intuitively, this works shows that the "decoupling" is dependent on appropriate training to avoid bias and ensure generalization.

Improving Data Collection and Abstraction to Assess Health Equity in Trauma Care.

Current trauma registries suffer from inconsistent collection of data needed to assess health equity. To identify barriers/facilitators to collecting accurate equity-related data elements, we assessed perspectives of national stakeholders, Emergency Department (ED) registration, and Trauma Registry staff. We conducted a Delphi process with experts in trauma care systems and key informant interviews and focus groups with ED patient registration and trauma registry staff at a regional Level I trauma center. Topics included data collection process, barriers/facilitators for equity-related data collection, electronic health record (EHR) entry, trauma registry abstraction, and strategies to overcome technology limitations. Responses were qualitatively analyzed and triangulated with observations of ED and trauma registry staff workflow. Expert-identified barriers to consistent data collection included lack of staff investment in changes and lack of national standardization of data elements; facilitators were simplicity, quality improvement checks, and stakeholder investment in modifying existing technology to collect equity elements. ED staff reported experiences with patients reacting suspiciously to queries regarding race and ethnicity. Cultural resonance training, a script to explain equity data collection, and allowing patients to self-report sensitive items using technology were identified as potential facilitators. Trauma registry staff reported lack of discrete fields, and a preference for auto-populated and designated EHR fields. Identified barriers and facilitators of collection and abstraction of equity-related data elements from multiple stakeholders provides a framework for improving data collection. Successful implementation will require standardized definitions, staff training, use of existing technology for patient self-report, and discrete fields for added elements.

Differences in activation of intracellular signaling in primary human retinal endothelial cells between isoforms of VEGFA 165.

Purpose: There are reports that a b-isoform of vascular endothelial growth factor-A 165 (VEGFA165b) is predominant in normal human vitreous, switching to the a-isoform (VEGFA165a) in the vitreous of some diseased eyes. Although these isoforms appear to have a different ability to activate the VEGF receptor 2 (VEGFR2) in various endothelial cells, the nature of their ability to activate intracellular signaling pathways is not fully characterized, especially in retinal endothelial cells. We determined their activation potential for two key intracellular signaling pathways (MAPK, AKT) over complete dose-response curves and compared potential effects on the expression of several VEGFA165 target genes in primary human retinal microvascular endothelial cells (HRMECs). Methods: To determine full dose-response curves for the activation of MAPK (ERK1/2), AKT, and VEGFR2, direct in-cell western assays were developed using primary HRMECs. Potential differences in dose-response effects on gene expression markers related to endothelial cell and leukocyte adhesion (ICAM1, VCAM1, and SELE) and tight junctions (CLDN5 and OCLN) were tested with quantitative PCR. Results: Activation dose-response analysis revealed much stronger activation of MAPK, AKT, and VEGFR2 by the a-isoform at lower doses. MAPK activation in primary HRMECs displayed a sigmoidal dose-response to a range of VEGFA 165 a concentrations spanning 10-250 pM, which shifted higher into the 100-5,000 pM range with VEGFA 165 b. Similar maximum activation of MAPK was achieved by both isoforms at high concentrations. Maximum activation of AKT by VEGFA 165 b was only half of the maximum activation from VEGFA 165 a. At a lower intermediate dose, where VEGFA 165 a activated intracellular signaling stronger than VEGFA 165 b, the changes in VEGFA target gene expression were generally greater with VEGFA 165 a. Conclusions: In primary HRMECs, VEGFA 165 a could maximally activate MAPK and AKT at lower concentrations where VEGFA 165 b had relatively little effect. The timing for maximum activation of MAPK was similar for the isoforms, which is different from that reported for non-retinal endothelial cells. Although differences in VEGFA 165 a and VEGFA 165 b are limited to the sequence of their six C-terminal six amino acids, this results in a large difference in their ability to activate at least two key intracellular signaling pathways and VEGF-target gene expression in primary human retinal endothelial cells.

Restrictive eating disorders in higher weight persons: A systematic review of atypical anorexia nervosa prevalence and consecutive admission literature.

OBJECTIVE: Currently, there is debate in the eating disorders field regarding how to define atypical anorexia (AAN), how prevalent it is in community and clinical settings, and how AAN rates compare with low-weight AN. This systematic review assesses AAN literature from 2007 to 2020, to investigate: (a) the demographic characteristics of AAN studies, (b) the prevalence of AAN compared with AN, (c) the range of operational definitions of AAN and the implications of these definitions, and (d) the proportion of patients with AAN and AN represented in consecutive admission and referral samples. METHOD: PsychINFO, CINAHL, PubMed, Greylit.org, and ProQuest databases were searched according to methods for Preferred Reporting Items for Systematic Reviews and Meta-Analyses systematic reviews, yielding 3,184 potential articles. Seventy-five eligible studies were coded for sixty-one variables. RESULTS: Clinical samples predominantly included younger, female, white samples with limited diversity. In epidemiological designs, AAN was typically as common or more common than AN, and AAN rates varied significantly based on the population studied and operational definitions. In consecutive clinical samples, AAN was frequently less represented. DISCUSSION: Although AAN appears to occur more frequently than AN in communities, fewer patients with AAN are being referred and admitted to eating disorder specific care, particularly in the United States. Given the significant medical and psychosocial consequences of AAN, and the importance of early intervention, this represents a crucial treatment gap. Additionally, results suggest the need for fine-tuning diagnostic definitions, greater diversity in AAN studies, and increased screening and referral for this vulnerable population.

OBJETIVO: Actualmente, hay debate en el campo de los trastornos alimenticios sobre cómo definir la anorexia atípica (ANA), cuán prevalente es en entornos comunitarios y clínicos, y cómo las tasas de ANA se comparan con AN de bajo peso. Esta revisión sistemática evalúa la literatura de ANA de 2007 a 2020, para investigar: 1) las características demográficas de los estudios de ANA, 2) la prevalencia de ANA en comparación con AN, 3) el rango de definiciones operativas de ANA y las implicaciones de estas definiciones, y 4) la proporción de pacientes con ANA y AN representados en muestras consecutivas de admisión y derivación. MÉTODO: Las bases de datos de PsychINFO, CINAHL, PubMed, Greylit.orgy y ProQuest fueron buscados de acuerdo con los métodos preferidos para el reporte de ítems para Revisiones Sistemáticas y Metanálisis de Revisiones Sistemáticas, dando lugar a 3184 artículos potenciales. Setenta y cinco estudios elegibles fueron codificados para 61 variables. RESULTADOS: Las muestras clínicas incluían predominantemente muestras de femeninas, más jóvenes, y blancas con diversidad limitada. En los diseños epidemiológicos, la ANA era típicamente tan común o más común que AN, y las tasas de ANA variaban significativamente en función de la población estudiada y las definiciones operacionales. En muestras clínicas consecutivas, la ANA fue frecuentemente menos representada. DISCUSIÓN: Aunque ANA parece ocurrir con más frecuencia que AN en las comunidades, menos pacientes con ANA están siendo referidos y admitidos a la atención específica del trastorno alimentario, particularmente en los Estados Unidos. Dadas las importantes consecuencias médicas y psicosociales de ANA, y la importancia de la intervención temprana, esto representa una brecha de tratamiento crucial. Además, los resultados sugieren la necesidad de ajustar las definiciones diagnósticas, una mayor diversidad en los estudios de ANA y un mayor cribado y referencia a tratamiento para esta población vulnerable.

Factors Associated with the Development of Persistent Pain after mTBI.

BACKGROUND: Persistent pain after mild traumatic brain injury (mTBI) is widely experienced, yet little is known about who is at risk for experiencing persistent pain after their injury. AIMS: The purpose of this study was to 1) determine if there are factors associated with later experiencing persistent pain after mTBI and 2) examine if there are symptom patterns associated with the experience of persistent pain. DESIGN: Secondary analysis was conducted using de-identified data from an NIH-funded longitudinal study.SettingsParticipants were enrolled in the emergency department. PARTICIPANTS: Participants were aged 21 to 92 and all had experienced mTBI. METHODS: We examined baseline characteristics, symptoms, and injury related variables associated with the endorsement of persistent pain among those with mTBI (N = 183) from baseline to 6 months post-injury. In order to identify a persistent pain phenotype, exploratory factor analysis was used to determine which symptoms co-occur with persistent pain. RESULTS: Persistent pain was found in 78% of those with mTBI. Those with lower overall health status at day 7 and at 1-month following injury had greater odds of developing persistent pain. Those with higher levels of general health status and physical function health status at day 7 and 1 month, and those with higher levels of overall health related status at 1 month had significantly lesser odds of persistent pain at 6 months. Factor analysis revealed that persistent pain and co-occurring symptoms (anxiety, depression, dizziness, nausea and vomiting, sleep disturbance, poor memory, poor concentration, longer to think and light sensitivity) loaded on one factor, indicating that these symptoms are associated. CONCLUSIONS: Those at increased risk for persistent pain should be screened beginning early in the recovery trajectory to reduce their risk of developing persistent pain. Identification of a phenotype offers potential for recognition of symptoms that cluster with persistent pain, improving the ability to treat patients more holistically, and develop interventions to support recovery from injury.

Pain and Symptoms after Mild Traumatic Brain Injury: Should Technology Play a Role in Self-Management?

BACKGROUND: Those with mild traumatic brain injury (mTBI) often experience pain and symptoms long after their initial injury. A gap in current knowledge is how persons would prefer to monitor and manage these symptoms following mTBI. AIMS: The purpose of this study was to explore self-management strategies to inform design of an informatics tool to support self-management of pain and symptoms following mTBI. DESIGN: A qualitative descriptive approach using semi-structured interviews of participants was used. SETTINGS: Participants were interviewed by phone. PARTICIPANTS: Seven female participants with recent mTBI completed interviews. METHODS: A descriptive approach was utilized to determine what the tool should address, and which features should be included in a future tool. Themes were identified using a Qualitative Description analysis approach, which is based in naturalistic inquiry. RESULTS: Participants described difficulty coping with symptoms, limited access to or knowledge of treatments and trial and error with compensatory strategies. These challenges often led to difficulty keeping up with work, school and other commitments. All participants indicated that they were interested in a tool that addresses pain, memory and concentration. The main features that participants wanted were pain and symptom tracking as well as suggestions based on tracking information. CONCLUSIONS: Patients are interested in using technology to help with self-management of their pain and symptoms following mTBI. Tools that help patients with self-management should integrate into health systems and provide ways to effectively interact with providers during the most vulnerable phases of recovery.

Telebehavioral Interventions for Family Caregivers of Individuals With Traumatic Brain Injury: A Systematic Review.

OBJECTIVE: To identify and examine research on telebehavioral interventions that support family caregivers of individuals with traumatic brain injury (TBI). METHODS: A systematic review using the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines. Studies published between 1999 and 2019 were identified through CINHAL, EMBASE, ERIC, PsycINFO, PubMed, Scopus, and Web of Science. RESULTS: Twelve studies met inclusion criteria; 3 used quasi-experimental designs, 7 were randomized controlled trials (RCTs) with 1-group comparison, 1 was RCT with a 2-group comparison, and 1 was RCT with a 3-group comparison. Outcomes primarily focused on caregiver depression, distress, self-efficacy, anxiety, stress, burden, and problem solving. Eleven studies found significant differences between the intervention and control groups on at least 1 outcome indicator, and 10 of these reported effect sizes supporting clinical significance. However, studies lacked data on caregiver and injury characteristics, and most studies lacked diverse study samples that may contribute to psychosocial outcomes. Nearly all studies demonstrated methodological bias (PEDro-P M = 5.5). CONCLUSIONS: Caregiver psychosocial outcomes following telebehavioral interventions were generally positive, but caution should be used when generalizing outcomes due to lack of sample diversity. Additional research is needed to assess how caregiver demographics and injury severity moderate caregiver outcomes.

Chemical genetic inhibition of DEAD-box proteins using covalent complementarity.

DEAD-box proteins are an essential class of enzymes involved in all stages of RNA metabolism. The study of DEAD-box proteins is challenging in a native setting since they are structurally similar, often essential and display dosage sensitivity. Pharmacological inhibition would be an ideal tool to probe the function of these enzymes. In this work, we describe a chemical genetic strategy for the specific inactivation of individual DEAD-box proteins with small molecule inhibitors using covalent complementarity. We identify a residue of low conservation within the P-loop of the nucleotide-binding site of DEAD-box proteins and show that it can be mutated to cysteine without a substantial loss of enzyme function to generate electrophile-sensitive mutants. We then present a series of small molecules that rapidly and specifically bind and inhibit electrophile-sensitive DEAD-box proteins with high selectivity over the wild-type enzyme. Thus, this approach can be used to systematically generate small molecule-sensitive alleles of DEAD-box proteins, allowing for pharmacological inhibition and functional characterization of members of this enzyme family.

Family Hardship Following Youth Concussion: Beyond the Medical Bills.

PURPOSE: The costs facing families after pediatric concussion are not limited to medical expenses for treatment and rehabilitation care. The objective of this research was to examine the economic hardship facing families following concussion. DESIGN AND METHODS: Eighteen youth (10-18 years old) with a diagnosed concussion injury and sixteen parents (13 parent/youth dyads) answered open-ended questions regarding experiences associated with concussion care and recovery, specifically as they related to cost. Participants were recruited from a concussion clinic, social media, and via snowball sampling. Interviews were audio recorded, transcribed verbatim, and coded using deductive qualitative content analysis. RESULTS: In addition to direct health care expenses (e.g. copays and deductibles), families of youth with concussion faced indirect costs associated with tutoring and transportation to medical appointments, in some cases over long distances. Financial cost-sharing for concussion care varied widely across participants. CONCLUSIONS: Lost productivity included parents missing work to care for their child and for travel to appointments. Research that describes costs of care using claims or survey data lack the experiential perspective of the economic burden on families following concussion. PRACTICE IMPLICATIONS: To fully understand the impact of concussion on patients and families, healthcare providers must consider non-monetary costs, such as opportunity costs, transportation required to obtain healthcare, or the productivity cost associated with missed work and school.

Trauma Providers' Perceptions of Frailty Assessment: A Mixed-Methods Analysis of Knowledge, Attitudes, and Beliefs.

OBJECTIVES: Quality improvement in geriatric trauma depends on timely identification of frailty, yet little is known about providers' knowledge and beliefs about frailty assessment. This study sought to understand trauma providers' understanding, beliefs, and practices for frailty assessment. METHODS: We developed a 20-question survey using the Health Belief Model of health behavior and surveyed physicians, advanced practice providers, and trainees on the trauma services at a single institution that does not use formal frailty screening of all injured seniors. Results were analyzed via mixed methods. RESULTS: One hundred fifty-one providers completed the survey (response rate 92%). Respondents commonly included calendar age as an integral factor in their determinations of frailty but also included a variety of other factors, highlighting limited definitional consensus. Respondents perceived frailty as important to older adult patient outcomes, but assessment techniques were varied because only 24/151 respondents (16%) were familiar with current formal frailty assessment tools. Perceived barriers to performing a formal frailty screening on all injured older adults included the burdensome nature of assessment tools, insufficient training, and lack of time. When prompted for solutions, 20% of respondents recommended automation of the screening process by trained, dedicated team members. CONCLUSIONS: Providers seem to recognize the impact that a diagnosis of frailty has on outcomes, but most lack a working knowledge of how to assess for frailty syndrome. Some providers recommended screening by designated, formally trained personnel who could notify decision makers of a positive screen result.

From Their Perspective: The Connection between Life Stressors and Health Care Service Use Patterns of Homeless Frequent Users of the Emergency Department.

The perspective of homeless adults on their health care service utilization is not well studied. This article describes a study that used in-depth, semistructured interviews with 18 individuals to highlight the viewpoints of homeless people who are frequent users of the emergency department (ED) about the influence of life events on service utilization. Participants reported high levels of pain and comorbid psychiatric, substance use, and medical conditions. They also reported an identifiable pattern of health care utilization, often centered on a crisis event, influenced by high perceived medical needs, inability to cope after crisis, predisposing vulnerability from social determinants of health, and health care system factors. A social work case management intervention often led to a period of stability and use of ED alternatives. Modifiable targets for intervention at the health care system and local levels include improving trust and convenience of ED alternatives, enhancing consistency of care at ED-alternative sites, and educating those at risk of frequent ED use about community alternatives.

Evaluation of a social network intervention on child feeding practices and caregiver knowledge.

Food insecurity and poor infant and young child feeding (IYCF) practices contribute to undernutrition. The Kanyakla Nutrition Program was developed in rural Kenya to provide knowledge alongside social support for recommended IYCF practices. Utilizing a social network approach, the Kanyakla Nutrition Program trained community health workers (CHWs) to engage mothers, fathers, and grandparents in nutrition education and discussions about strategies to provide instrumental, emotional, and information support within their community. The 12-week programme included six sessions and was implemented on Mfangano Island, Kenya, in 2014-2015. We analysed intervention effects on (a) nutrition knowledge among community members or CHWs and (2) IYCF practices among children 1-3 years. Nutrition knowledge was assessed using a postintervention comparison among intervention (community, n = 43; CHW, n = 22) and comparison groups (community, n = 149; CHW, n = 64). We used a quasi-experimental design and difference-in-difference to assess IYCF indicators using dietary recall data from an ongoing cohort study among intervention participants (n = 48) with individuals living on Mfangano Island where the intervention was not implemented (n = 178) before the intervention, within 1 month postintervention, and 6 months postintervention. Findings showed no effect of the intervention on IYCF indicators (e.g., dietary diversity and meal frequency), and less than 15% of children met minimum acceptable diet criteria at any time point. However, knowledge and confidence among community members and CHWs were significantly higher 2 years postintervention. Thus, a social network approach had an enduring effect on nutrition knowledge, but no effects on improved IYCF practices.

Glycosylation of a model proto-RNA nucleobase with non-ribose sugars: implications for the prebiotic synthesis of nucleosides.

The emergence of nucleosides is an important, but poorly understood, element of the origins of life. We show that 2,4,6-triaminopyrimidine (TAP), a possible ancestral nucleobase of RNA, is glycosylated in water by non-ribose sugars in yields comparable to those previously reported for its reaction with ribose. The various sugars surveyed include ketoses and aldoses; tetroses, pentoses, and hexoses and are neutral, anionic, or cationic. Though they vary greatly in structure and properties, the data show that all sugars tested form glycosides with TAP. The structures of the eight TAP glycosides formed with glucose and two of its derivatives, glucose-6-phosphate and N-acetylglucosamine, were found to be ß-pyranosides with the glycosylation site on TAP varying with sugar identity. Our results suggest that prebiotic nucleoside formation would not have been restricted to ribose if ancestral RNA (or proto-RNA) utilized TAP and/or other proto-nucleobases with similar reactivities, and that the ability to form higher-order structures may have influenced proto-RNA monomer selection.

Racial Disparities in Outpatient Mental Health Service Use Among Children Hospitalized for Traumatic Brain Injury.

OBJECTIVE: To examine racial differences in mental health service utilization after hospitalization for traumatic brain injury (TBI) among children with Medicaid insurance. DESIGN AND MAIN MEASURES: Retrospective analysis of the MarketScan Multi-State Medicaid database from 2007 to 2012 was performed. Outpatient mental health service utilization (psychiatric and psychological individual and group services) was compared at TBI hospitalization, from discharge to 3 months and from 4 to 12 months after discharge, between children of non-Hispanic white (NHW), non-Hispanic black (NHB), Hispanic, and "Other" racial groups. Multivariable mixed-effects Poisson regression models with robust standard errors were utilized. RESULTS: A total of 5674 children (aged <21 years) were included in the study. There were no differences by race/ethnicity in mental health service utilization during hospitalization. At 3 months postdischarge, NHB children and children in the "Other" racial category were significantly less likely to receive outpatient mental health services than NHW children (NHB relative risk [RR] = 0.84; 95% confidence interval [CI], 0.72-0.98; Other RR = 0.72; 95% CI, 0.57-0.90). At 12 months, all racial minority children were significantly less likely to receive outpatient mental health services than NHW children (NHB RR = 0.84; 95% CI, 0.75-0.94; Hispanic RR = 0.72; 95% CI, 0.55-0.94; Other RR = 0.71; 95% CI, 0.60-0.84). CONCLUSIONS: Racial disparities in utilization of outpatient mental health services exist for minority children hospitalized for TBI and insured by Medicaid. Future research should focus on improving transitions of care from inpatient to outpatient services for these children.

Transdisciplinarity in Research: Perspectives of Early Career Faculty.

BACKGROUND: Early career faculty experiences and perspectives on transdisciplinary research are important yet understudied. METHODS: Assistant professors at 50 top-ranked social work programs completed an online survey assessing perspectives on the salience of transdisciplinary training in their field, obstacles to or negative impacts of transdisciplinary training, and current environments. Content analysis and descriptive statistics were used. RESULTS: A large majority of all participants (N » 118) believed that transdisciplinary research is important, that greater training is needed, and that they are relatively well prepared in related skill sets. They are expected to build cross-disciplinary collaborations, yet only a small minority believed that social work researchers are nationally recognized as important collaborators, or that they are prepared to navigate tensions on research teams. CONCLUSIONS: We offer a multilevel framework of structural and training supports needed to realize transdisciplinary research in social work with relevance to other disciplines.