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Two new Psilocybe species (Hymenogastraceae), P. ingeli and P. maluti, are described from southern Africa. Morphology and phylogeny were used to separate the two novel fungi from their closest relatives in the genus. Psilocybe ingeli was found fruiting on bovine manure-enriched grasslands in the Kwa-Zulu Natal Province of South Africa and differs from its closest relative P. keralensis and others in the internal transcribed spacer ITS1-5.8S-ITS2, partial 28S nuc rDNA, and translation elongation factor 1-alpha regions, distribution, and having larger basidiospores. Similarly, P. maluti was collected from the Free State Province of South Africa and observed in the Kingdom of Lesotho, growing on bovine manure. A secotioid pileus, geographic distribution, and differences in the same DNA regions distinguish P. maluti from its closest relative P. chuxiongensis. Furthermore, the spore dispersal and traditional, spiritualistic use of P. maluti are discussed here.
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Nanocomposite materials consist of nanometer-sized quantum objects such as atoms, molecules, voids or nanoparticles embedded in a host material. These quantum objects can be exploited as a super-structure, which can be designed to create material properties targeted for specific applications. For electromagnetism, such targeted properties include field enhancements around the bandgap of a semiconductor used for solar cells, directional decay in topological insulators, high kinetic inductance in superconducting circuits, and many more. Despite very different application areas, all of these properties are united by the common aim of exploiting collective interaction effects between quantum objects. The literature on the topic spreads over very many different disciplines and scientific communities. In this review, we present a cross-disciplinary overview of different approaches for the creation, analysis and theoretical description of nanocomposites with applications related to electromagnetic properties.
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As online classes became the norm in many countries as a response to the COVID-19 pandemic, the concern for child and adolescent mental health became an issue of concern. This study evaluates the differences in the psychosocial status of school children based on engagement in in-person or Emergency Remote Education (ERE) and assessed the prevalence and predictors of symptom-derived risk levels for anxiety, depression, and obsessive-compulsive disorders (OCD). Cross-sectional data were collected from students at a Florida K-12 school and their household members through an online survey conducted in October 2020 (n = 145). No significant difference was found between ERE and in-person learning for risk of anxiety, depression, or OCD. Prevalence of students presenting as at risk for anxiety, depression, and OCD was 42.1%, 44.8%, and 41.4%. Several student factors (e.g., child sex, school level) and parental factors (e.g., parental COVID-19 attitudes) were associated with students presenting as at risk for anxiety, depression, or OCD; child's participation in sports was protective against all three outcomes. Participation in sports was found to be protective against risk of anxiety (aOR = 0.36, CI = 0.14-0.93), depression (aOR = 0.38, CI = 0.15-0.93), and OCD (aOR = 0.31, CI = 0.11-0.85).
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COVID-19 , Pandemias , Adolescente , Ansiedade/epidemiologia , Criança , Estudos Transversais , Depressão/epidemiologia , Humanos , Prevalência , SARS-CoV-2 , Estudantes , Inquéritos e QuestionáriosRESUMO
The COSMOS Database (DB) was originally established to provide reliable data for cosmetics-related chemicals within the COSMOS Project funded as part of the SEURAT-1 Research Initiative. The database has subsequently been maintained and developed further into COSMOS Next Generation (NG), a combination of database and in silico tools, essential components of a knowledge base. COSMOS DB provided a cosmetics inventory as well as other regulatory inventories, accompanied by assessment results and in vitro and in vivo toxicity data. In addition to data content curation, much effort was dedicated to data governance - data authorisation, characterisation of quality, documentation of meta information, and control of data use. Through this effort, COSMOS DB was able to merge and fuse data of various types from different sources. Building on the previous effort, the COSMOS Minimum Inclusion (MINIS) criteria for a toxicity database were further expanded to quantify the reliability of studies. COSMOS NG features multiple fingerprints for analysing structure similarity, and new tools to calculate molecular properties and screen chemicals with endpoint-related public profilers, such as DNA and protein binders, liver alerts and genotoxic alerts. The publicly available COSMOS NG enables users to compile information and execute analyses such as category formation and read-across. This paper provides a step-by-step guided workflow for a simple read-across case, starting from a target structure and culminating in an estimation of a NOAEL confidence interval. Given its strong technical foundation, inclusion of quality-reviewed data, and provision of tools designed to facilitate communication between users, COSMOS NG is a first step towards building a toxicological knowledge hub leveraging many public data systems for chemical safety evaluation. We continue to monitor the feedback from the user community at support@mn-am.com.
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BACKGROUND: Most women living in rural provinces of Tajikistan, specifically Khatlon, experience little to no opportunities for education and economic growth, making them vulnerable to gender-based violence (GBV). Unfortunately due to social norms that are bolstered by a patriarchal society, GBV has become tolerated and even normalized in rural areas. This study looks to investigate the differences in perceptions of violence as it relates to empowerment among men and women in rural Tajikistan. METHODS: Data collection was done through participatory workshops and semi-structured interviews (SSI) that were led by Extension Home Economists, which lectured on gender, violence, and empowerment. Community Empowerment Drawings is a novel tool that has been used to further gather sensitive information that was not previously discussed. During this process, participant groups were asked to draw their perception of empowered versus disempowered women, later explaining the different characteristics and traits of both. Random participants across both genders were later contacted for a SSI to triangulate the data from the participatory workshops. This qualitative study implemented qualitative content analysis to explore the data inductively. Analysis of the drawings and transcripts from the workshops and SSIs included two researchers coding through an iterative process. Themes were stratified by men's and women's perceptions and codebooks were compared to ensure consensus. RESULTS: Men and women from 12 villages participated in the Community Empowerment Drawings within each workshop, with 234 participants total. Results were stratified into two categories which were later broken down into notable themes: education, employment, decision-making, marital status, relationship wellness and respect, violence, mental health, and substance abuse. Major findings illustrated how disempowered women were perceived to have more exposure to men who experience alcohol abuse. This study found that differences in perceptions of empowerment between men and women remain-with men still holding onto the traditional power structure within a household and women challenging gender roles and mobility. CONCLUSION: Future studies may find engaging communities through drawings will yield more information regarding sensitive topics rather than traditional instruments. More support and advocacy are needed in areas of mental, neurological, and substance abuse disorders throughout rural Tajikistan.
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Violência de Gênero , Feminino , Humanos , Masculino , Homens , Percepção , População Rural , TadjiquistãoRESUMO
BACKGROUND: Biased interpretations of ambiguous bodily threat situations characterize youth with chronic pain, and have been associated with functional disability for this population. Despite predictions by the fear-avoidance model of chronic pain, that fear and avoidance of pain explain the association between threat perceptions and disability, this has not yet been explored in youth with chronic pain. This study aimed to address this gap by investigating these proposed relationships, in addition to the association between bodily threat interpretations and daily aspects of disability (as well as social, and emotional impairments). METHOD: Sixty-eight adolescents aged 11-18 years old with a clinical diagnosis of chronic pain completed an extended version of the Adolescent Interpretations of Bodily Threat task to assess interpretations of bodily and social threat situations, alongside measures of disability and fear and avoidance of pain. RESULTS: Using mediation analysis, fear and avoidance of pain statistically accounted for the relationship between negative bodily threat interpretations and functional disability. Significant associations were also demonstrated between negative bodily threat interpretations and adolescent-reported impairments in daily, emotional and social impairments. Data revealed a significant relationship between negative social interpretations and daily functional disability. CONCLUSIONS: Findings indicate the clinical relevance of bodily and social threat interpretations, and fear and avoidance of pain, for this population and raise further questions regarding the content-specificity of threat interpretations. SIGNIFICANCE: Psychological theories of pain-associated impact and disability point to fear and avoidance of pain, as well as information-processing biases. Here, we present novel data showing the clinical relevance of bodily and social threat interpretations in explaining pain-related disability amongst youth with chronic pain, potentially by shaping fear and avoidance of pain. Longitudinal designs will be required to assess these temporally sensitive mediation pathways.
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Dor Crônica , Pessoas com Deficiência , Adolescente , Aprendizagem da Esquiva , Viés , Criança , Avaliação da Deficiência , Medo , Humanos , Medição da Dor , Inquéritos e QuestionáriosRESUMO
A survey of Penicillium in the fynbos biome from South Africa resulted in the isolation of 61 species of which 29 were found to be new. In this study we focus on Penicillium section Canescentia, providing a phylogenetic re-evaluation based on the analysis of partial beta-tubulin (BenA), calmodulin (CaM) and RNA polymerase II second largest subunit (RPB2) sequence data. Based on phylogenies we show that five fynbos species are new and several previously assigned synonyms of P. canescens and P. janczewskii should be considered as distinct species. As such, we provide descriptions for the five new species and introduce the new name P. elizabethiae for the illegitimate P. echinatum. We also update the accepted species list and synonymies of section Canescentia species and provide a review of extrolites produced by these species. Citation: Visagie CM, Frisvad JC, Houbraken J, et al. 2021. A re-evaluation of Penicillium section Canescentia, including the description of five new species. Persoonia 46: 163-187. https://doi.org/10.3767/persoonia.2021.46.06.
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Isquemia Encefálica/etiologia , Malformações Vasculares do Sistema Nervoso Central/complicações , Estado Epiléptico/etiologia , Substância Branca/patologia , Malformações Vasculares do Sistema Nervoso Central/fisiopatologia , Malformações Vasculares do Sistema Nervoso Central/terapia , Embolização Terapêutica , Procedimentos Endovasculares , Humanos , Masculino , Pessoa de Meia-IdadeRESUMO
Following the publication of this article the authors noted that data describing precisely where phosphorylation sites in proteins modulated following JAK1 or JAK3 inhibition in mutant T-ALL samples was not clearly annotated. Therefore an additional sheet has been added to Supplementary Table 2.
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Kynurenine 3-monooxygenase (KMO) is a well-validated therapeutic target for the treatment of neurodegenerative diseases, including Alzheimer's disease (AD) and Huntington's disease (HD). This work reports a facile fluorescence-based KMO assay optimized for high-throughput screening (HTS) that achieves a throughput approximately 20-fold higher than the fastest KMO assay currently reported. The screen was run with excellent performance (average Z' value of 0.80) from 110,000 compounds across 341 plates and exceeded all statistical parameters used to describe a robust HTS assay. A subset of molecules was selected for validation by ultra-high-performance liquid chromatography, resulting in the confirmation of a novel hit with an IC50 comparable to that of the well-described KMO inhibitor Ro-61-8048. A medicinal chemistry program is currently underway to further develop our novel KMO inhibitor scaffolds.
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Inibidores Enzimáticos/química , Ensaios de Triagem em Larga Escala/métodos , Quinurenina 3-Mono-Oxigenase/antagonistas & inibidores , Cromatografia Líquida de Alta Pressão/métodos , FluorescênciaRESUMO
Mutations in the interleukin-7 receptor (IL7R) or the Janus kinase 3 (JAK3) kinase occur frequently in T-cell acute lymphoblastic leukemia (T-ALL) and both are able to drive cellular transformation and the development of T-ALL in mouse models. However, the signal transduction pathways downstream of JAK3 mutations remain poorly characterized. Here we describe the phosphoproteome downstream of the JAK3(L857Q)/(M511I) activating mutations in transformed Ba/F3 lymphocyte cells. Signaling pathways regulated by JAK3 mutants were assessed following acute inhibition of JAK1/JAK3 using the JAK kinase inhibitors ruxolitinib or tofacitinib. Comprehensive network interrogation using the phosphoproteomic signatures identified significant changes in pathways regulating cell cycle, translation initiation, mitogen-activated protein kinase and phosphatidylinositol-4,5-bisphosphate 3-kinase (PI3K)/AKT signaling, RNA metabolism, as well as epigenetic and apoptotic processes. Key regulatory proteins within pathways that showed altered phosphorylation following JAK inhibition were targeted using selumetinib and trametinib (MEK), buparlisib (PI3K) and ABT-199 (BCL2), and found to be synergistic in combination with JAK kinase inhibitors in primary T-ALL samples harboring JAK3 mutations. These data provide the first detailed molecular characterization of the downstream signaling pathways regulated by JAK3 mutations and provide further understanding into the oncogenic processes regulated by constitutive kinase activation aiding in the development of improved combinatorial treatment regimens.
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The implementation of the one-pass-through separation technique using two stacked chromatography columns of TEVA - TRU resins for the separation of 237Np, 241Am, thorium, plutonium and uranium from environmental and urine samples was investigated. The sequential separation technique proved to be successful and gave similar results to those obtained when using individual separations. The analysis time was considerably improved. The amount of chemical waste was also reduced by 50% and the use of HClO4 was avoided. The technique of ICP-MS was also investigated as a complementary technique to alpha-spectrometry.
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Amerício/análise , Netúnio/análise , Plutônio/análise , Poluentes Radioativos/análise , Tório/análise , Urânio/análise , Partículas alfa , Amerício/isolamento & purificação , Amerício/urina , Cromatografia Líquida/métodos , Humanos , Espectrometria de Massas/métodos , Netúnio/isolamento & purificação , Netúnio/urina , Plutônio/isolamento & purificação , Plutônio/urina , Poluentes Radioativos/isolamento & purificação , Poluentes Radioativos/urina , Análise Espectral/métodos , Tório/isolamento & purificação , Tório/urina , Urânio/isolamento & purificação , Urânio/urinaRESUMO
BACKGROUND: Project Career is an interprofessional five-year development project designed to improve academic and employment success of undergraduate students with a traumatic brain injury (TBI) at two- and four-year colleges and universities. Students receive technology in the form of iPad applications ("apps") to support them in and out of the classroom. OBJECTIVE: To assess participants' perspectives on technology at baseline and perceived benefit of apps after 6 and 12 months of use. METHODS: This article address a component of a larger study. Participants included 50 college-aged students with traumatic brain injuries. Statistical analysis included data from two Matching Person and Technology (MPT) assessment forms, including the Survey of Technology Use at baseline and the Assistive Technology Use Follow-Up Survey: Apps Currently Using, administered at 6- and 12-months re-evaluation. Analyses included frequencies and descriptives. RESULTS: Average scores at baseline indicated positive perspectives on technology. At 6 months, quality of life (67%) and academics (76%) improved moderately or more from the use of iPad apps. At 12 months, quality of life (65%) and academics (82%) improved moderately or more from the use of iPad apps. CONCLUSION: Students with a TBI have positive perspectives on technology use. The results on perceived benefit of apps indicated that students with a TBI (including civilians and veterans) report that the apps help them perform in daily life and academic settings.
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Computadores de Mão/normas , Aplicativos Móveis/normas , Percepção , Estudantes/psicologia , Interface Usuário-Computador , Lesões Encefálicas Traumáticas/complicações , Lesões Encefálicas Traumáticas/psicologia , Humanos , Psicometria/instrumentação , Psicometria/métodos , Qualidade de Vida/psicologia , Tecnologia Assistiva/normas , Inquéritos e QuestionáriosRESUMO
STUDY QUESTION: Is the spindle assembly checkpoint (SAC) active during human preimplantation development? SUMMARY ANSWER: Mitotic spindle disruption during mitosis activates the SAC from at least Day 3 of human preimplantation development, but this does not lead to apoptosis until Day 5. WHAT IS KNOWN ALREADY: Human preimplantation embryos frequently acquire chromosomal abnormalities, but the mechanisms behind this are poorly understood. It has been speculated that a dysfunctional SAC could be responsible. Although research has shown that the SAC components are present during early human development, functional studies are lacking. STUDY DESIGN, SIZE, DURATION: In vitro study using human preimplantation embryos in a university research laboratory. We studied a total of 38 Day-3, 38 Day-4, 29 Day-5 and 21 Day-6 human preimplantation embryos, donated for research, during 16 h of incubation. PARTICIPANT/MATERIALS, SETTING, METHODS: We cultured human preimplantation embryos overnight in a time-lapse imaging system, in control or in a nocodazole-containing medium that prevents the formation of a proper mitotic spindle. The embryos were subsequently fixed and analysed by immunocytochemistry for tubulin or mitotic and apoptotic markers, or by FISH. MAIN RESULTS AND THE ROLE OF CHANCE: All embryos showed an increase in M-phase cells from 4.1-8.8% to 21.4-53.5% when exposed to nocodazole (P < 0.05; two-way ANOVA for all groups except Day-4 embryos, P = 0.128) suggesting SAC functionality. Apoptosis, which was rarely detected between Day 3 and Day 6 in good-quality control embryos, increased from Day 5 onwards in nocodazole-treated embryos and became statistically different from Day 6 (P < 0.01; two-way ANOVA). The FISH data suggest that in compacted Day-4 embryos, approximately one in six cells started a polyploid new cell cycle rather than to go in apoptosis after the failure to maintain the SAC-mediated M-phase arrest. These results suggest that during early embryo development, blastomeres with unresolved chromosome misalignments during M-phase can escape SAC-mediated apoptosis, continue cell division which can then result in aneuploid daughter cells. LARGE SCALE DATA: Not applicable. LIMITATIONS, REASONS FOR CAUTION: This study used nocodazole to inhibit microtubule polymerization, a drug that is regularly used to induce metaphase arrest and SAC activation. Results should be extrapolated to naturally occurring chromosome misalignments with care. WIDER IMPLICATIONS OF THE FINDINGS: Our results provide functional data that can help explain the high aneuploidy rates seen in human cleavage-stage embryos and suggest that this is due to their unusual cell cycle control. STUDY FUNDING/COMPETING INTEREST(S): This work was supported by the Fund for Scientific Research Flanders (Fonds voor Wetenschappelijk Onderzoek (FWO) Vlaanderen) and the Methusalem grant to Karen Sermon of the Research Council of the Vrije Universiteit Brussel. The authors declare no competing financial interests.
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Aberrações Cromossômicas/efeitos dos fármacos , Desenvolvimento Embrionário/efeitos dos fármacos , Pontos de Checagem da Fase M do Ciclo Celular/efeitos dos fármacos , Nocodazol/farmacologia , Fuso Acromático/efeitos dos fármacos , Moduladores de Tubulina/farmacologia , Apoptose/efeitos dos fármacos , Blastocisto , Técnicas de Cultura Embrionária , Embrião de Mamíferos , Desenvolvimento Embrionário/genética , Feminino , Humanos , Hibridização in Situ Fluorescente , Gravidez , Fuso Acromático/genética , Fuso Acromático/patologia , Imagem com Lapso de TempoRESUMO
Adult patients with chronic pain are consistently shown to interpret ambiguous health and bodily information in a pain-related and threatening way. This interpretation bias may play a role in the development and maintenance of pain and disability. However, no studies have yet investigated the role of interpretation bias in adolescent patients with pain, despite that pain often first becomes chronic in youth. We administered the Adolescent Interpretations of Bodily Threat (AIBT) task to adolescents with chronic pain (N = 66) and adolescents without chronic pain (N = 74). Adolescents were 10 to 18 years old and completed the study procedures either at the clinic (patient group) or at school (control group). We found that adolescents with chronic pain were less likely to endorse benign interpretations of ambiguous pain and bodily threat information than adolescents without chronic pain, particularly when reporting on the strength of belief in those interpretations being true. These differences between patients and controls were not evident for ambiguous social situations, and they could not be explained by differences in anxious or depressive symptoms. Furthermore, this interpretation pattern was associated with increased levels of disability among adolescent patients, even after controlling for severity of chronic pain and pain catastrophizing. The current findings extend our understanding of the role and nature of cognition in adolescent pain, and provide justification for using the AIBT task in longitudinal and training studies to further investigate causal associations between interpretation bias and chronic pain.
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Viés , Catastrofização/psicologia , Dor Crônica/psicologia , Transtornos do Humor/etiologia , Sensação/fisiologia , Adolescente , Análise de Variância , Catastrofização/etiologia , Criança , Dor Crônica/complicações , Avaliação da Deficiência , Pessoas com Deficiência/psicologia , Feminino , Humanos , Masculino , Transtornos do Humor/psicologia , Medição da Dor , Escalas de Graduação Psiquiátrica , Estudos RetrospectivosRESUMO
The taxonomy of Talaromyces rugulosus, T. wortmannii and closely related species, classified in Talaromyces sect. Islandici, is reviewed in this paper. The species of Talaromyces sect. Islandici have restricted growth on MEA and CYA, generally have yellow mycelia and produce rugulosin and/or skyrin. They are important in biotechnology (e.g. T. rugulosus, T. wortmannii) and in medicine (e.g. T. piceus, T. radicus). The taxonomy of sect. Islandici was resolved using a combination of morphological, extrolite and phylogenetic data, using the Genealogical Concordance Phylogenetic Species Recognition (GCPSR) concept, with special focus on the T. rugulosus and T. wortmannii species complexes. In this paper, we synonymise T. variabilis, Penicillium concavorugulosum and T. sublevisporus with T. wortmannii, and introduce four new species as T. acaricola, T. crassus, T. infraolivaceus and T. subaurantiacus. Finally, we provide a synoptic table for the identification of the 19 species classified in the section.
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The genus Torulomyces was characterised by species that typically have conidiophores consisting of solitary phialides that produce long chains of conidia connected by disjunctors. Based on the phylogenetic position of P. lagena (generic ex-neotype), the genus and its seven species were transferred to Penicillium and classified in sect. Torulomyces along with P. cryptum and P. lassenii. The aim of this study was to review the species currently classified in sect. Torulomyces using morphology and phylogenies of the ITS, BenA, CaM and RPB2 regions. Based on our results, we accept 16 species in sect. Torulomyces, including 12 new species described as P. aeris, P. austricola, P. cantabricum, P. catalonicum, P. oregonense, P. marthae-christenseniae, P. riverlandense, P. tubakianum, P. variratense, P. williamettense, P. wisconsinense and P. wollemiicola. In addition, we reclassify P. laeve and P. ovatum in sect. Exilicaulis and correct the typification of P. lagena. We provide descriptions and notes on the identification of the species.
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Within this special issue, different aspects of the environment are studied: aspects that are distant from the human body, close to the body and touching the human body. Consequently, different human senses are involved in these studies as well as the different consequences and effects on the brain and human behaviour. This special issue also highlights many remaining questions about the effects and relationships between environments and human beings and the need for more studies and research. In particular, future studies are needed that address long-term effects and the effects of the combinations of elements which provide comfort or discomfort.