1,014 research outputs found

    The Conservation and Management of Tunas and Their Relatives: Setting Life History Research Priorities

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    Scombrids (tunas, bonitos, Spanish mackerels and mackerels) support important fisheries in tropical, subtropical and temperate waters around the world, being one of the most economically- and socially-important marine species globally. Their sustainable exploitation, management and conservation depend on accurate life history information for the development of quantitative fisheries stock assessments, and in the fishery data-poor situations for the identification of vulnerable species. Here, we assemble life history traits (maximum size, growth, longevity, maturity, fecundity, spawning duration and spawning interval) for the 51 species of scombrids globally. WJRC.G.4-Maritime affair

    A historicidade da mulher que cometeu homicídio

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    A presente investigação tem como objetivo principal a exploração e compreensão das experiências subjetivas de mulheres que se encontram detidas pelo crime de homicídio. Foi utilizada uma metodologia qualitativa através do método fenomenológico de Amadeo Giorgi que permitiu estudar a historicidade da vida de quatro mulheres, através de entrevistas semiestruturadas, e alcançar uma descrição final com constituintes essenciais e invariáveis, comuns na vida das participantes, que, eventualmente, terão condicionado as suas ações. Os resultados indicam que o significado da experiência está associado a três grandes sistemas: A família de origem (com os constituintes relativos à normalização da violência na educação, a família como espaço de boas memórias, um perda significativa na família), a família escolhida (experiência de violência doméstica) e a dimensão do Eu (Embotamento afetivo, com dificuldades em partilhar o sofrimento que estavam a viver nas suas relações e a presença constante do medo).The main objective of the present investigation is to explore and understand the subjective experiences of women who are detained for the crime of homicide. A qualitative methodology was used through the descriptive phenomenological method of Amadeo Giorgi, which allowed us to study the historicity of the lives of four women, through semi-structured interviews, and to reach a final description with essential and invariable constituents, common in the lives of the participants, which, eventually, will have conditioned their actions. The results indicate that the meaning of the experience is associated with three major systems: The family of origin (with the constituents related to the normalization of violence in education, the family as a space for good memories, a significant loss in the family), the chosen family ( Experience of domestic violence) and the dimension of the Self (Affective dullness, with difficulties in sharing the suffering they were experiencing in their relationships and the constant presence of fear)

    Reabilitação de paciente infantil com múltiplos dentes natais e oligodontia na dentição permanente

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    The objective of the present article is to report an uncommon case of a boy with history of 11 natal lost teeth, all belonging to the normal series of primary dentition, associated with absence of up to 21 permanent tooth germs. Such a condition resulted in the necessity for oral rehabilitation. Partial removable prostheses were used as a choice of treatment, and the patient will have to be constantly followed up so that new treatment approaches can be performed according to the patient’s development.O objetivo do presente artigo é reportar um caso incomum de um paciente infantil com história de 11 dentes natais extraídos, todos da série normal da dentição decídua, além de ausência de 21 germes da dentição permanente. Essa condição tornou necessária a reabilitação protética deste paciente. O tratamento de escolha foi a utilização de próteses parciais removíveis, e o paciente terá que ser constantemente acompanhado para que, conforme seu crescimento, novas alternativas de tratamento sejam utilizadas

    Factors associated with discontinuation of biologics in patients with inflammatory arthritis in remission: data from the BIOBADASER registry

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    Biologic DMARD; Inflammatory arthritis; RemissionFARME biológico; Artritis inflamatoria; RemisiónFARME biològic; Artritis inflamatòria; RemissióBackground: The objectives of this study were to assess the discontinuation of biologic therapy in patients who achieve remission and identify predictors of discontinuation of biologics in patients with inflammatory arthritis in remission. Methods: An observational retrospective study from the BIOBADASER registry comprising adult patients diagnosed with rheumatoid arthritis (RA), ankylosing spondylitis (AS), or psoriatic arthritis (PsA) and receiving 1 or 2 biological disease-modifying drugs (bDMARDs) between October 1999 and April 2021. Patients were followed yearly after initiation of therapy or until discontinuation of treatment. Reasons for discontinuation were collected. Patients who discontinued bDMARDs because of remission as defined by the attending clinician were studied. Predictors of discontinuation were explored using multivariable regression models. Results: The study population comprised 3,366 patients taking 1 or 2 bDMARDs. Biologics were discontinued owing to remission by 80 patients (2.4%): 30 with RA (1.7%), 18 with AS (2.4%), and 32 with PsA (3.9%). The factors associated with a higher probability of discontinuation on remission were shorter disease duration (OR: 0.95; 95% CI: 0.91-0.99), no concomitant use of classic DMARDs (OR: 0.56; 95% CI: 0.34-0.92), and shorter usage of the previous bDMARD (before the decision to discontinue biological therapy) (OR: 1.01; 95% CI: 1.01-1.02); in contrast, smoking status (OR: 2.48; 95% CI: 1.21-5.08) was associated with a lower probability. In patients with RA, positive ACPA was associated with a lower probability of discontinuation (OR: 0.11; 95% CI: 0.02-0.53). Conclusions: Discontinuation of bDMARDs in patients who achieve remission is uncommon in routine clinical care. Smoking and positive ACPA in RA patients were associated with a lower probability of treatment discontinuation because of clinical remission

    Human Amniocytes Are Receptive to Chemically Induced Reprogramming to Pluripotency

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    Restoring pluripotency using chemical compounds alone would be a major step forward in developing clinical-grade pluripotent stem cells, but this has not yet been reported in human cells. We previously demonstrated that VPA_ AFS cells, human amniocytes cultivated with valproic acid (VPA) acquired functional pluripotency while remaining distinct from human embryonic stem cells (hESCs), questioning the relationship between the modulation of cell fate and molecular regulation of the pluripotency network. Here, we used single-cell analysis and functional assays to reveal that VPA treatment resulted in a homogeneous population of self-renewing non-transformed cells that fulfill the hallmarks of pluripotency, i.e., a short G1 phase, a dependence on glycolytic metabolism, expression of epigenetic modifications on histones 3 and 4, and reactivation of endogenous OCT4 and downstream targets at a lower level than that observed in hESCs. Mechanistic insights into the process of VPA-induced reprogramming revealed that it was dependent on OCT4 promoter activation, which was achieved independently of the PI3K (phosphatidylinositol 3-kinase)/ AKT/ mTOR (mammalian target of rapamycin) pathway or GSK3 beta inhibition but was concomitant with the presence of acetylated histones H3K9 and H3K56, which promote pluripotency. Our data identify, for the first time, the pluripotent transcriptional and molecular signature and metabolic status of human chemically induced pluripotent stem cells

    Transparent bionanocomposites with improved properties prepared from acetylated bacterial cellulose and poly(lactic acid) through a simple approach

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    The preparation and characterization of biocomposite materials with improved properties based on poly(lactic acid) (PLA) and bacterial cellulose, and, for comparative purposes, vegetal cellulose fibers, both in their pristine form or after acetylation, is reported. The composite materials were obtained through the simple and green mechanical compounding of a PLA matrix and bacterial cellulose nanofibrils (or vegetable fibers), and were characterized by TGA, DSC, tensile assays, DMA, SEM and water uptake. The bionanocomposites obtained from PLA and acetylated bacterial cellulose were particularly interesting, given the considerable improvement in thermal and mechanical properties, as evidenced by the significant increase in both elastic and Young moduli, and in the tensile strength (increments of about 100, 40 and 25%, respectively) at very low nanofiller loadings (up to 6%). These nanocomposites also showed low hygroscopicity and considerable transparency, features reported here for the first time.FCT - PTDC/QUI/68472/2006FCT - SFRH/BPD/63250/2009FCT - L. C. T/ E. T.FCT-CAPES 2009FCT - National Program for Scientific Re-equipmentRede/1509/RME/2005REEQ/515/CTM/200

    Factors associated with discontinuation of biologics in patients with inflammatory arthritis in remission: data from the BIOBADASER registry

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    Background: The objectives of this study were to assess the discontinuation of biologic therapy in patients who achieve remission and identify predictors of discontinuation of biologics in patients with inflammatory arthritis in remission. Methods: An observational retrospective study from the BIOBADASER registry comprising adult patients diagnosed with rheumatoid arthritis (RA), ankylosing spondylitis (AS), or psoriatic arthritis (PsA) and receiving 1 or 2 biological disease-modifying drugs (bDMARDs) between October 1999 and April 2021. Patients were followed yearly after initiation of therapy or until discontinuation of treatment. Reasons for discontinuation were collected. Patients who discontinued bDMARDs because of remission as defined by the attending clinician were studied. Predictors of discontinuation were explored using multivariable regression models. Results: The study population comprised 3,366 patients taking 1 or 2 bDMARDs. Biologics were discontinued owing to remission by 80 patients (2.4%): 30 with RA (1.7%), 18 with AS (2.4%), and 32 with PsA (3.9%). The factors associated with a higher probability of discontinuation on remission were shorter disease duration (OR: 0.95; 95% CI: 0.91-0.99), no concomitant use of classic DMARDs (OR: 0.56; 95% CI: 0.34-0.92), and shorter usage of the previous bDMARD (before the decision to discontinue biological therapy) (OR: 1.01; 95% CI: 1.01-1.02); in contrast, smoking status (OR: 2.48; 95% CI: 1.21-5.08) was associated with a lower probability. In patients with RA, positive ACPA was associated with a lower probability of discontinuation (OR: 0.11; 95% CI: 0.02-0.53). Conclusions: Discontinuation of bDMARDs in patients who achieve remission is uncommon in routine clinical care. Smoking and positive ACPA in RA patients were associated with a lower probability of treatment discontinuation because of clinical remission.This research is supported by the Research Unit of the Spanish Society of Rheumatology. BIOBADASER is supported by the Spanish Agency of Medicines and Medical Devices (AEMPS), Biogen, Bristol-Myers and Squibb (BMS), Celltrion, Janssen, Lilly, Merck Sharp and Dohme (MSD), Novartis, Pfizer, Regeneron, and Samsung Bioepis.S
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