Predicting Recovery After Concussion in Pediatric Patients: A Meta-Analysis.

CONTEXT: Prognostic prediction models (PPMs) can help clinicians predict outcomes. OBJECTIVE: To critically examine peer-reviewed PPMs predicting delayed recovery among pediatric patients with concussion. DATA SOURCES: Ovid Medline, Embase, Ovid PsycInfo, Web of Science Core Collection, Cumulative Index to Nursing and Allied Health Literature, Cochrane Library, Google Scholar. STUDY SELECTION: The study had to report a PPM for pediatric patients to be used within 28 days of injury to estimate risk of delayed recovery at 28 days to 1 year postinjury. Studies had to have at least 30 participants. DATA EXTRACTION: The Critical Appraisal and Data Extraction for Systematic Reviews of Prediction Modeling Studies checklist was completed. RESULTS: Six studies of 13 PPMs were included. These studies primarily reflected male patients in late childhood or early adolescence presenting to an emergency department meeting the Concussion in Sport Group concussion criteria. No study authors used the same outcome definition nor evaluated the clinical utility of a model. All studies demonstrated high risk of bias. Quality of evidence was best for the Predicting and Preventing Postconcussive Problems in Pediatrics (5P) clinical risk score. LIMITATIONS: No formal PPM Grading of Recommendations, Assessment, Development, and Evaluations (GRADE) process exists. CONCLUSIONS: The 5P clinical risk score may be considered for clinical use. Rigorous external validations, particularly in other settings, are needed. The remaining PPMs require external validation. Lack of consensus regarding delayed recovery criteria limits these PPMs.

Longitudinal invariance of the Patient Health Questionnaire-9 among patients receiving pharmacotherapy for major depressive disorder: A secondary analysis of clinical trial data.

Comparing self-reported symptom scores across time requires longitudinal measurement invariance (LMI), a psychometric property that means the measure is functioning identically across all time points. Despite its prominence as a measure of depression symptom severity in both research and health care, LMI has yet to be firmly established for the Patient Health Questionnaire-9 depression module (PHQ-9), particularly over the course of antidepressant pharmacotherapy. Accordingly, the objective of this study was to assess for LMI of the PHQ-9 during pharmacotherapy for major depressive disorder. This was a secondary analysis of data collected during a randomized controlled trial. A total of 1,944 veterans began antidepressant monotherapy and completed the PHQ-9 six times over 24 weeks of treatment. LMI was assessed using a series of four confirmatory factor analysis models that included all six time points, with estimated parameters increasingly constrained across models to test for different aspects of invariance. Root-mean-square error of approximation of the chi-square difference test values below 0.06 indicated the presence of LMI. Exploratory LMI analyses were also performed for separate sex, age, and race subgroups. Root-mean-square error of approximation of the chi-square difference test showed minimal change in model fits during invariance testing (≤ 0.06 for all steps), supporting full LMI for the PHQ-9. LMI was also supported for all tested veteran subgroups. As such, PHQ-9 sum scores can be compared across extended pharmacotherapy treatment durations. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

A randomized clinical trial for a self-guided sleep intervention following moderate-severe traumatic brain injury: Study protocol.

BACKGROUND: Individuals with a history of moderate-severe traumatic brain injury (TBI) experience a significantly higher prevalence of insomnia compared to the general population. While individuals living with TBI have been shown to benefit from traditional insomnia interventions (e.g., face-to-face [F2F]), such as Cognitive Behavioral Therapy for Insomnia (CBTI), many barriers exist that limit access to F2F evidence-based treatments. Although computerized CBT-I (CCBT-I) is efficacious in terms of reducing insomnia symptoms, individuals with moderate-severe TBI may require support to engage in such treatment. Here we describe the rationale, design, and methods of a randomized controlled trial (RCT) assessing the efficacy of a guided CCBT-I program for reducing insomnia symptoms for participants with a history of moderate-severe TBI. METHODS: This is an RCT of a guided CCBT-I intervention for individuals with a history of moderate-severe TBI and insomnia. The primary outcome is self-reported insomnia severity, pre- to post-intervention. Exploratory outcomes include changes in sleep misperception following CCBT-I and describing the nature of guidance needed by the Study Clinician during the intervention. CONCLUSION: This study represents an innovative approach to facilitating broader engagement with an evidence-based online treatment for insomnia among those with a history of moderate-severe TBI. Findings will provide evidence for the level and nature of support needed to implement guided CCBT-I. Should findings be positive, this study would provide support for a strategy by which to deliver guided CCBT-I to individuals with a history of moderate-severe TBI.

Delivery of bright light therapy within the Veterans Health Administration.

BACKGROUND: Bright light therapy (BLT) is efficacious for seasonal and non-seasonal depression. However, the current state of BLT use in practice is unknown, impeding efforts to identify and address utilization gaps. This study's objective was to investigate BLT delivery in a nationwide U.S. healthcare system. METHODS: This was a retrospective observational study of electronic medical records from all veterans who received outpatient mood disorder-related care in the Veterans Health Administration (VHA) from October 2008 through September 2020. BLT delivery was measured through the placement of light box consults. RESULTS: Of the 3,442,826 veterans who received outpatient mood disorder care, only 57,908 (1.68 %) received a light box consult. Consults increased by 548.44 % (99.9 % credible interval: 467.36 %, 638.74 %) over the timeframe and displayed a robust yearly cycle that peaked on either December 21st or December 22nd. Past mental health treatment for a mood disorder was associated with a higher probability of a consult (relative risk = 4.79, 99.9 % CI: 4.21, 5.60). There was low representation related to veteran age, gender, race, and ethnicity. LIMITATIONS: No information on patients who declined light boxes or actual light box use following consult placement. CONCLUSIONS: Outpatient BLT delivery for mood disorders in the VHA remains low, despite significant growth over the past decade. It also displays a strong seasonal rhythm that peaks on the winter solstice, suggesting a limited focus on seasonal depression and a suboptimal reactive approach to changing sunlight. Overall, there exists ample opportunity for novel implementation efforts aimed at increasing utilization of BLT.

Alkaline lignins from Morinda citrifolia leaves are potential immunomodulatory, antitumor, and antimicrobial agents.

Morinda citrifolia, commonly known as noni, is a plant belonging to the Rubiaceae family. This plant has a high biological potential, which has different biological properties, including antioxidant, antibacterial, antiviral, antifungal, antitumor and anti-inflammatory. In this work, the immunomodulatory, antitumor and antimicrobial activities of lignin isolated from Morinda citrifolia leaves were investigated. The results showed that this lignin was not cytotoxic and that it was able to promote activation and differentiation of immune cells in addition to inducing the production of anti-inflammatory cytokines. Furthermore, it was able to inhibit the growth of different tumor and microbial cells in vitro. This pioneering study on these different activities shows that the lignin isolated in this study can be used as a raw material to obtain biomedical and pharmaceutical products.

Longitude-based time zone partitions and rates of suicide.

BACKGROUND: Increasing evidence suggests that conditions with decreased morning and increased evening light exposure, including shift work, daylight-saving time, and eveningness, are associated with elevated mortality and suicide risk. Given that the alignment between the astronomical, biological, and social time varies across a time zone, with later-shifted daylight exposure in the western partition, we hypothesized that western time zone partitions would have higher suicide rates than eastern partitions. METHODS: United States (U.S.) county-level suicide and demographic data, from 2010 to 2018, were obtained from a Centers for Disease Control database. Using longitude and latitude, counties were sorted into the western, middle, or eastern partition of their respective time zones, as well as the northern and southern halves of the U.S. Linear regressions were used to estimate the associations between suicide rates and time zone partitions, adjusting for gender, race, ethnicity, age group, and unemployment rates. RESULTS: Data were available for 2872 counties. Across the U.S., western partitions had statistically significantly higher rates of suicide compared to eastern partitions and averaged up to two additional yearly deaths per 100,000 people (p < .001). LIMITATIONS: Ecological design and limited adjustment for socioeconomic factors. CONCLUSIONS: To our knowledge, this is the first study of the relationship between longitude-based time zone partitions and suicide. The results were consistent with the hypothesized elevated suicide rates in the western partitions, and concordant with previous reports on cancer mortality and transportation fatalities. The next step is to retest the hypothesis with individual-level data, accounting for latitude, photoperiodic changes, daylight-saving time, geoclimatic variables, physical and mental health indicators, as well as socioeconomic adversity and protection.

Avaliação da eficiência dos diferentes métodos de ensino de ressuscitação cardiopulmonar para crianças e adolescentes: revisão integrativa / Evaluation of the efficiency of the different methods of teaching cardiopulmonary resuscitation to children and adolescents: integrative review

Objetivo: Avaliar a eficiência dos diferentes métodos de ensino de Suporte Básico de Vida (SBV) para estudantes leigos a partir dos 12 anos de idade. Métodos: Realizou-se busca por artigos nas plataformas MEDLINE/PubMed e Lilacs/BVS, entre dezembro de 2021 e janeiro de 2022, para responder à questão norteadora "Qual a efetividade dos diferentes métodos de ensino de ressuscitação cardiopulmonar para crianças e adolescentes?". Incluíram-se artigos publicados nos últimos cinco anos, nos idiomas inglês e português. Resultados: Sete artigos abordaram os métodos de ensino: aprendizagem autorregulada, treinamento dos professores seguido dos estudantes, educação em pares; ensino online associado ao autotreinamento prático, ensino à distância, treinamento digital somado à prática, e uso de aplicativo por meio de um tabletcom posterior avaliação. Em todos os estudos houve comparação da intervenção com o treinamento convencional. De forma geral, todos os métodos de ensino contribuíram para desenvolver a habilidade de agir em situações de trauma, mas as estratégias que envolviam a presença de instrutores nos treinamentos mostraram melhores resultados, a curto e longo prazo. Conclusão: O presente estudo verificou os achados na literatura a respeito da eficácia de diferentes métodos de ensino de SBV para crianças e adolescentes. Dentre todas as abordagens observou-se melhor desempenho nos métodos que contaram com a presença de instrutores, os quais ofertaram feedback aos alunos e diminuíram as distrações. Porém, o ensino digital, o autorregulado e o aos pares também se mostraram viáveis. Logo, a escolha do método deve se pautar na realidade do público-alvo

Objective: To evaluate the efficiency of different teaching methods of Basic Life Support for lay students from 12 years of age.Methods: A search was carried out for articles on the MEDLINE/PubMed and Lilacs/BVS platforms between December 2021 and January 2022 to answer the guiding question, "How effective are the different teaching methods of cardiopulmonary resuscitation for children and adolescents?".Articles published in English and Portuguese in the last five years were included.Results: Seven articles addressed teaching methods: self-regulated learning, training of teachers followed by students, peer education, online teaching associated with practical self-training, distance learning, digital training added to practice, and application use through a tablet with subsequent evaluation.In all studies, there was a comparison between intervention and conventional training.Generally, all teaching methods contributed to developing the ability to act in trauma situations, but strategies that involved the presence of instructors in training showed better short- and long-term results.Conclusion: this study verified the findings in the literature regarding the effectiveness of different BLS teaching methods for children and adolescents.Among all approaches, better performance was observed in methods that had the presence of instructors, who offered feedback to students and reduced distractions. However, digital, self-r egulated, and peer teaching also proved viable.Therefore, the choice of method should be based on the target audience's reality

Influence of 3D Microstructure Pattern and Infill Density on the Mechanical and Thermal Properties of PET-G Filaments.

This study aims to evaluate the thermal and mechanical performances of PET-G thermoplastics with different 3D microstructure patterns and infill densities. The production costs were also estimated to identify the most cost-effective solution. A total of 12 infill patterns were analysed, including Gyroid, Grid, Hilbert curve, Line, Rectilinear, Stars, Triangles, 3D Honeycomb, Honeycomb, Concentric, Cubic, and Octagram spiral with a fixed infill density of 25%. Different infill densities ranging from 5% to 20% were also tested to determine the best geometries. Thermal tests were conducted in a hotbox test chamber and mechanical properties were evaluated using a series of three-point bending tests. The study used printing parameters to meet the construction sector's specific needs, including a larger nozzle diameter and printing speed. The internal microstructures led to variations of up to 70% in thermal performance and up to 300% in mechanical performance. For each geometry, the mechanical and thermal performance was highly correlated with the infill pattern, where higher infill improved thermal and mechanical performances. The economic performance showed that, in most cases, except for the Honeycomb and 3D Honeycomb, there were no significant cost differences between infill geometries. These findings can provide valuable insights for selecting the optimal 3D printing parameters in the construction industry.

ICU Admission, Invasive Mechanical Ventilation, and Mortality among Children and Adolescents Hospitalized for COVID-19 in a Private Healthcare System.

Aim: The COVID-19 pandemic devastated healthcare around the world. Data about the COVID-19 outcomes among young people are still scarce. We aim to identify factors associated with the composite outcome among children and adolescents hospitalized due to COVID-19. Methods: We performed a search in the database of a large Brazilian private healthcare system. Insured people aged 21 years or younger who were hospitalized due to COVID-19 from Feb/28th/2020 to Nov/1st/2021 were included. The primary endpoint was the composite outcome consisting of ICU admission, need for invasive mechanical ventilation, or death. Results: We evaluated 199 patients who had an index hospitalization due to COVID-19. The median monthly rate of index hospitalization was 2.7 (interquartile range [IQR], 1.6-3.9) per 100,000 clients aged 21 years or less. The median age of the patients was 4.5 years (IQR, 1.4-14.1). At the index hospitalization, the composite outcome rate was 26.6%. The composite outcome was associated with all the previous coexisting morbidities evaluated. The median follow-up was 249.0 days (IQR, 152.0-438.5). There were 27 readmissions (16 patients) within 30 days after the discharge. Conclusions: In conclusion, hospitalized children and adolescents had a composite outcome rate of 26.6% at the index hospitalization. Having previous chronic morbidity was associated with the composite.

The unique association of posttraumatic stress disorder with hypertension among veterans: A replication of Kibler et al. (2009) using Bayesian estimation and data from the United States-Veteran Microbiome Project.

OBJECTIVE: Kibler et al. (2009) reported that hypertension was related to PTSD independent of depression. These two conditions have significant diagnostic overlap. The present study sought to conceptually replicate this work with a veteran sample, using Bayesian estimation to directly update past results, as well as examine symptom severity scores in relation to hypertension. METHOD: This was a secondary analysis of data obtained from the United States-Veteran Microbiome Project. Lifetime diagnoses of PTSD and major depressive disorder (MDD) were obtained from a structured clinical interview and hypertension diagnoses were extracted from electronic medical records. PTSD and depressive symptom severity were obtained from self-report measures. Logistic regressions with Bayesian estimation were used to estimate the associations between hypertension and (a) psychiatric diagnostic history and (b) symptom severity scores. RESULTS: Compared with veterans without lifetime diagnoses of either disorder, the PTSD-only group was estimated to have a 29% increase in hypertension risk, and the PTSD + MDD group was estimated to have a 66% increase in hypertension risk. Additionally, higher levels of PTSD symptom severity were associated with a higher risk of hypertension. CONCLUSION: PTSD diagnosis and symptom severity are uniquely associated with hypertension, independent of MDD or depressive symptom severity. These results support previous findings that PTSD might be a modifiable risk factor for the prevention and treatment of hypertension. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

Bright light therapy for mental and behavioral illness: A systematic umbrella review.

Bright light therapy (BLT) is a promising non-pharmacological treatment for a range of psychiatric conditions. The goal of this review was to provide a comprehensive overview of the efficacy of BLT across mental and behavioral illnesses. Using systematic umbrella review methodology, we searched Ovid MEDLINE, Embase, PsycInfo, Web of Science, and Google Scholar for systematic reviews of randomized controlled trials (RCTs) evaluating BLT for any mental or behavioral illness from the date of inception until March 2021. Review quality was assessed using the AMSTAR 2 tool and summary efficacy data were extracted from recent reviews. Of 792 unique records, 67 systematic reviews were included which targeted a range of disorders related to mood, neurocognition, sleep, and eating. Recent meta-analyses targeting seasonal or non-seasonal depression found that BLT outperformed light-related control conditions. Reviews of other disorders identified few RCTs and generally did not support the efficacy of BLT for various outcomes. Overall, the extant literature supports the efficacy of BLT for seasonal and non-seasonal depression, although higher quality systematic reviews are needed to increase confidence in these findings. There was no specific funding for this review, and it was preregistered on Prospero (ID: CRD42021240751).

A practical guide to random-effects Bayesian meta-analyses with application to the psychological trauma and suicide literature.

OBJECTIVE: Bayesian meta-analyses offer several advantages over traditional approaches, including improved accuracy when using a small number of studies and enhanced estimation of heterogeneity. However, psychological trauma research has yet to see widespread adoption of these statistical methods, potentially due to researchers' unfamiliarity with the processes involved. The purpose of this article is to provide a practical tutorial for conducting random-effects Bayesian meta-analyses. METHOD: Explanations and recommendations are provided for completing the primary steps of a Bayesian meta-analysis, ranging from model specification to interpretation of results. Furthermore, an illustrative example is used to demonstrate the application of each step. In the example, results are synthesized from six studies included in a previously published systematic review (Holliday et al., 2020), with a combined sample size of 21,244,109, examining the association between posttraumatic stress disorder and risk of suicide in veterans and military personnel. RESULTS: The posterior distributions for each model estimate, such as the pooled effect size and the heterogeneity parameter, are discussed and interpreted with regard to the probability of increased suicide risk. CONCLUSIONS: Our hope is that this tutorial, along with the provided data and code, facilitate the use of Bayesian meta-analyses in the study of psychological trauma. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

Examining the Factor Structure of the Posttraumatic Checklist for Civilians.

The Posttraumatic Checklist for Civilians (PCL-C) is one of the most common tools used to assess PTSD among civilian populations. However, the underlying factor structure of the PCL-C remains under examined, with the most recent research relying on small samples with limited generalizability. Thus, the present study used exploratory and confirmatory techniques in a large North American college student sample to investigate the factor structure of the PCL-C. Results supported a 3-factor model for the PCL-C accounting for 59% of the total variance and represented by Suppression (M = 11.2, SD = 5.0); Hyperarousal (M = 6.5, SD = 3.2); and Diminished Reward Processing (M = 5.9, SD = 2.9). Regarding gender differences, females tended to score higher on suppression and avoidance related symptoms, while males scored higher on symptoms related to Diminished Reward Processing. Results also showed that embedded within college campuses are trauma exposed students experiencing distressingly high levels of posttrauma symptoms. In sum, the results revealed three factors in the PCL-C, that could be used to offer insight into assessing and treating posttrauma symptoms on a college campus.

Exercise to Reduce Posttraumatic Stress Disorder Symptoms in Veterans.

Background: Physical exercise offers benefits for treating psychological disorders, particularly depression. Exercise is associated with reduction of posttraumatic stress disorder (PTSD) symptoms in civilians. Given the comorbidities and unique trauma experiences of the veteran population, the current work aims to estimate the effect of exercise on PTSD symptoms in veteran samples. Observations: A systematic review identified 6 single-arm studies and 3 randomized controlled trials (RCTs) using exercise as an interventional treatment among veteran samples with full or subsyndromal PTSD. Most single-arm studies used yoga-based interventions, whereas RCTs showed more variety and included yoga, aerobic activity, and resistance exercises. Data synthesis of study results revealed a medium standardized mean difference for the single-arm trials (Hedges g, -0.60, P = .03) and a small-to-medium standardized mean difference for the RCTs (Hedges g, -0.40, P = .06). Single-arm studies were all rated at serious risk of bias. Only 1 RCT was rated at high risk of bias, although the remaining RCTs showed some concern of elevated bias. Conclusions: There is preliminary evidence that exercise may be a useful treatment option for PTSD symptom reduction in veterans. Our review also highlights the need for additional high-quality randomized trials to confirm the benefits of exercise for PTSD symptom reduction in veterans.

Bioinks Enriched with ECM Components Obtained by Supercritical Extraction.

Extracellular matrix (ECM)-based bioinks have been steadily gaining interest in the field of bioprinting to develop biologically relevant and functional tissue constructs. Herein, we propose the use of supercritical carbon dioxide (scCO2) technology to extract the ECM components of cell-sheets that have shown promising results in creating accurate 3D microenvironments replicating the cell's own ECM, to be used in the preparation of bioinks. The ECM extraction protocol best fitted for cell sheets was defined by considering efficient DNA removal with a minor effect on the ECM. Cell sheets of human dermal fibroblasts (hDFbs) and adipose stem cells (hASCs) were processed using a customised supercritical system by varying the pressure of the reactor, presence, exposure time, and type of co-solvent. A quantification of the amount of DNA, protein, and sulfated glycosaminoglycans (sGAGs) was carried out to determine the efficiency of the extraction in relation to standard decellularization methodologies. The bioinks containing the extracted ECM were fabricated by combining them with alginate as a support polymer. The influence of the alginate (1%, 2% w/vol) and ECM (0.5% and 1.5% w/vol) amounts on the printability of the blends was addressed by analysing the rheological behaviour of the suspensions. Finally, 3D printed constructs were fabricated using an in-house built extrusion-based bioprinter, and the impact of the extrusion process on cell viability was assessed. The optimised scCO2 protocol allowed efficient removal of DNA while preserving a higher number of proteins and sGAGs than the standard methodologies. The characterization of extract's composition also revealed that the ECM produced by hDFbs (fECM) and hASCs (aECM) is distinctively affected by the extraction protocols. Furthermore, rheological analysis indicated an increase in viscosity with increasing ECM composition, an effect even more prominent in samples containing aECM. 3D printing of alginate/ECM constructs demonstrated that cell viability was only marginally affected by the extrusion process, and this effect was also dependent on the ECM source. Overall, this work highlights the benefits of supercritical fluid-based methods for ECM extraction and strengthens the relevance of ECM-derived bioinks in the development of printed tissue-like constructs.

Mental health follow-up and treatment engagement following suicide risk screening in the Veterans Health Administration.

IMPORTANCE: Understanding the extent to which population-level suicide risk screening facilities follow-up and engagement in mental health treatment is important as engaging at-risk individuals in treatment is critical to reducing suicidal behaviors. OBJECTIVE: To evaluate mental health follow-up and treatment engagement in the Veterans Health Administration (VHA) following administration of the Columbia-Suicide Severity Rating Scale (C-SSRS) screen, a component of the VHA's universal suicide risk screening program. DESIGN: This cross-sectional study used data from VA's Corporate Data Warehouse. SETTINGS: 140 VHA Medical Centers. PARTICIPANTS: Patients who completed the C-SSRS screen in ambulatory care between October 1, 2018-September 30, 2020. EXPOSURE: Standardized suicide risk screening. MAIN OUTCOMES AND MEASURES: Mental health follow-up (one or more visits within 30 days of C-SSRS screening) and treatment engagement (two or more visits within 90 days of C-SSRS screening) were examined. RESULTS: 97,224 Veterans in Fiscal Year 2019 (FY19) (mean age 51.4 years; 86.8% male; 64.8% white, 22.4% African-American) and 58,693 Veterans in FY20 (mean age 49.6 years; 85.5% male; 63.4% white, 21.9% African-American) received the C-SSRS screen. Across FYs, a positive C-SSRS screen was associated with increased probability of mental health follow-up and treatment engagement. Patients who were not seen in mental health in the year prior to screening had the greatest increase in probability of mental health follow-up and engagement following a positive screen (P<0.001). For FY19, a positive C-SSRS screen in non-mental health connected patients was associated with an increased probability of follow-up from 49.8% to 79.5% (relative risk = 1.60) and engagement from 39.5% to 63.6% (relative risk = 1.61). For mental health-connected patients, a positive C-SSRS screen was associated with a smaller increase in probability of follow-up from 75.8% to 87.6% (relative risk = 1.16) and engagement from 63.3% to 76.4% (relative risk = 1.21). Results for FY20 were similar. CONCLUSIONS AND RELEVANCE: Identification of suicide risk through population-level screening was associated with increased mental health follow-up and engagement, particularly for non-mental health connected patients. Findings support the use of a standardized, comprehensive suicide risk screening program for managing elevated suicide risk in a large healthcare system.

Influence of microstructure and physical characteristics in the performance of non-professional masks sold in São Paulo.

OBJECTIVES: This study evaluates the performance of eight non-professional face masks sold in São Paulo, Brazil, to prevent aerial transmission of the SARS-CoV-2. STUDY DESIGN: This was a case report with comparative testing. METHODS: The masks manufactured with different materials and designs were quantified according to their performance to prevent COVID-19 using two indicators: filtration efficiency (FE) and differential pressure. The fabric grammage and microscopy of the layers were analyzed to understand their influence on the performance indicators. RESULTS: The results show no correlation between grammage in the FE and increasing grammage can compromise breathability indicator. Masks manufactured with cotton widely commercialized during the pandemic have non-uniformized results in FE indicators. CONCLUSIONS: There was no evidence between grammage and the number of layers in the FE indicator. The results pointed out that the layer's composition and the microstructure are the best way to evaluate the performance of non-professional masks used to prevent the aerial transmission of the SARS-CoV-2.

Monogamia e identidade: considerações psicanalíticas / Monogamy and Identity: psychoanalytic considerations

Resumo: Entendendo a monogamia como dispositivo contingencial, analisa-se sua capacidade de influenciar os processos de constituição da identidade e as formas de identificação dos sujeitos. A partir das elaborações de Heinz Lichtenstein sobre as origens da identidade humana, incluímos a monogamia, ou alguns traços presentes neste arranjo, na unidade mãe-bebê, supondo que o estatuto hegemônico da monogamia revela algo de sua ligação com a situação antropológica fundamental descrita por Laplanche. Assim, traços do arranjo monogâmico seriam transmitidos à criança em seu estado de "órgão" da mãe e, enquanto pontos constitutivos da identidade, seriam compulsivamente repetidos com o objetivo de manter a coesão desta identidade.

Abstract: With the understanding that monogamy is a contingent device, the paper intends to analyze its ability to influence the processes of identity constitution of the subjects. From Heinz Lichtenstein's elaborations on the origins of human identity, we include monogamy, or some traits present in this arrangement, in the mother-infant unit, supposing that the hegemonic status of monogamy reveals some of its connection with the fundamental anthropological situation described by Laplanche. Thus, traces of the monogamous arrangement would be transmitted to the child in its "organ" state and would be compulsively repeated as constitutive points of identity, in order to maintain the cohesion of this identity.

Effects of different swimming intensities on the bone properties of the tibia and femur of Wistar Rats in which knee rheumatoid arthritis was induced / Efectos de las diferentes intensidades de la natación en las propiedades óseas de la tibia y fémur de Ratas Wistar con artritis reumatoide inducida en rodillas

Rheumatoid arthritis (RA) is a disease triggered by environmental and genetic factors. Research suggests that physical exercise has benefits such as delaying functional disability. In vivo studies using experimental models of arthritis can provide useful information about these benefits. to analyze the effects that different intensities of aquatic physical exercise have on the proprieties of the bones in induced arthritis in knees of Wistar rats. Male Wistar adults rats (n=20) were divided into 5 groups: Group Control Arthritis (GCA) n=4, Group control Placebo (GCP) n=4, Group Low Physical Activity (GB) n=4, Group Moderate Physical Activity (GM) n=4 and Group Intense Physical Activity (GI) n=4. The physical activity groups got an intra-articular injection of Zymosam on the right knee; the GCA received saline solution in the right knee; the GCP was submitted to the stress of the needle. The animals were submitted to aquatic activity for 30 minutes, 4 times a week for 5 weeks, and the intensity of the exercise was determined by a weight placed on their back: GB=1 %, GM=5 %, GI=15 % of their body weight. It was observed that the group GB, and the groups that did not exercise GCA and GCP, gained more weight compared to the group GM. In relation to the bone mineral content of the tibia, there was a decrease in the GM group when compared to the GCP group, whereas in the tibial bone mineral density there was a decrease in the GM group compared to the GCP, GCA, GB. As for the area of the femur, the GI group presented an increase of it compared to the GB and GM groups. It is concluded that the high intensity exercises promote better results in bone properties.

La investigación sugiere que el ejercicio físico tiene beneficios como retrasar la discapacidad funcional de la artritis reumatoide. Los estudios in vivo que utilizan modelos experimentales de artritis pueden proporcionar información útil sobre estos beneficios. Se analizaron los efectos de las intensidades del ejercicio físico acuático sobre las propiedades de los huesos, en la artritis inducida en las rodillas de ratas Wistar. Las ratas Wistar macho adultas (n = 20) se dividieron en 5 grupos: grupo de control artritis (ACG) n = 4, grupo control placebo (CGP) n = 4, grupo de actividad física baja (GB) n = 4, grupo de actividad física moderada (GM) n = 4 y grupo de actividad física intensa (GI) n = 4. Los grupos de actividad física recibieron una inyección intraarticular de Zymosam en la rodilla derecha; el GCA recibió solución salina en la rodilla derecha; el CGP fue sometido a la tensión de una aguja. Los animales fueron sometidos a actividad acuática durante 30 minutos, 4 veces a la semana durante 5 semanas, y la intensidad del ejercicio se determinó mediante un peso colocado sobre su espalda: GB = 1 %, GM = 5 %, GI = 15 % de su peso corporal. Se observó que el grupo GB, y los grupos que no ejercitaron GCA y CGP, ganaron más peso en comparación con el grupo GM. En relación con el contenido mineral óseo de la tibia, hubo una disminución en el grupo GM en comparación con el grupo GCP, mientras que en la densidad mineral del hueso tibial hubo una disminución en el grupo GM en comparación con el GCP, GCA, GB. En cuanto al área del fémur, el grupo GI presentó un aumento en comparación con los grupos GB y GM. En conclusión el ejercicio de alta intensidad promueve mejores resultados en las propiedades óseas.

Measurement-based care: Use of the Beck Anxiety Inventory (BAI) in a veteran population.

The Beck Anxiety Inventory (BAI) is widely used within the Veterans Health Administration (VHA), both as an assessment tool and as a part of measurement-based care practices. However, there is preliminary evidence that the BAI may perform uniquely in veteran samples, emphasizing the need for a comprehensive investigation of the BAI in this population. The present study compared the normative data reported by Beck and Steer (1993) to secondary data generated by a nationwide sample of U.S. military veterans receiving treatment through the VHA. Secondary data, including initial BAI scores, demographic characteristics, treatment location, and diagnoses originally recorded during the course of usual VHA care over a 5-year period for 57,088 individual veterans, were extracted through the VA Informatics and Computing Infrastructure. BAI scores were compared across samples and various veteran subgroups. Exploratory and confirmatory factor analyses were also conducted. Results revealed that the BAI performed similarly across veteran and normative samples. Male and older veterans were found to have lower BAI scores than their respective counterparts. Factor analyses indicated that a three-factor model best fit the veteran data. Additionally, a cut score of 18 best differentiated between veterans with and without anxiety and related disorders. This study helps support the use of the BAI as a reliable and valid instrument for assessing anxiety symptoms in veterans. Additional research is recommended to better guide BAI interpretation across age groups and sexes/genders. (PsycInfo Database Record (c) 2020 APA, all rights reserved).