ABSTRACT Single nucleotide polymorphisms are variations of a single nucleotide base pair and can be associated to phenotypic characteristics. This study aimed to determine the association of CAPN1 and CAST gene polymorphisms with the tenderness of Creole cattle meat from the Amazonas region, Peru. The texture profile (adhesiveness, cohesiveness, Warner-Bratzler shear force, elasticity, gumminess, and chewiness) of 100 animals was determined in 100 g of Longissimus dorsi et lumborum muscle. Allelic frequencies, genotypic frequencies, and Hardy-Weinberg equilibrium (HWE) of calpain (CAPN-316, CAPN-530) and calpastatin (CAST-2959) gene polymorphisms were studied. Allelic and genotypic frequencies were calculated, as well as the Hardy-Weinberg equilibrium with the Chi-square test. The texture profile of each group of samples corresponding to a polymorphism was compared with the Duncan’s test and the t-test for independent samples (p < 0.05). Genotypic frequencies were 78 % GG and 22 % CC for CAPN-316; 68 % GG, 5 % GA, and 27 % AA for CAPN-530; and 74 % AA, 18 % AG, and 8 % GG for CAST-2959. The CAPN-316, CAPN-530, and CAST-2959 polymorphisms were not in Hardy-Weinberg equilibrium. The CC genotype of CAPN-316 marker influences meat tenderness on day 21 of meat aging. In contrast, the GG genotype of CAST-2959 marker affects meat tenderness at days 14 and 21 of meat aging concerning the other genotypes.

ABSTRACT Background: Omalizumab (OMA) is approved for antihistamine resistant chronic spontaneous urticaria (CSU). The possibility of self-administration (SA), is particularly convenient in current pandemic scenario, avoiding commutements to the hospital. Objectives: CSU control, SA safety, satisfaction, and cost reduction for patients under OMA SA therapy, during a period ≥ 12 weeks and after 2 training sessions in Outpatient Hospital Care (OHC) were evaluated between January and June 2021. Methods: A questionnaire (30 questions) was applied for the characterization of clinical/demographic data, therapy, adverse reactions (AR) and advantages/concerns related to OMA SA. Clinical evaluation of CSU was performed in T0 (last administration in OHC) and T1 (at12 weeks on SA), by urticaria activity score in the last 7 days (UAS7), urticaria control test (UCT) and dermatology life quality index (DLQI). Results: Twenty-five patients with a mean CSU duration of 7.4 ±3.9 years and under OMA for 3.2 ±1.9 years were included. At the time of the questionnaire, 52% had already 3 SA of OMA 300mg, with variable periodicity between 4/4 week (44%) and 8/8 week (12%); 40% without antihistamine H1 (anti-H1) therapy associated. In 88% OMA was SA by patient himself. 64% perceived equal pain intensity with SA than in OHC administration. No serious AR were reported. Regarding the control of CSU, there were no statistically significant differences between scores in T0 and T1. SA was considered advantageous by all patients, being valued the reduction of time/costs. About 48% reported some concerns with SA, especially in OMA manipulation. The majority (76%) considered a simple and practical procedure, valuing initial training sessions in OHC. For 52% there was no need for further improvement, while the simplification of the OMA delivery process was proposed by 28% of patients. Conclusions: OMA SA had a positive impact on satisfaction in patients with CSU, keeping up the good control and therapeutic safety.

RESUMO Fundamentos: O omalizumab (OMA) está aprovado para a urticária crónica espontânea (UCE) refratária aos anti-histamínicos. A possibilidade de autoadministração (AA) de OMA evita deslocações ao hospital, particularmente relevante em tempo de pandemia. Objetivos: Avaliaram-se o controlo da UCE, segurança da AA de OMA, grau de satisfação e redução dos custos para os doentes sob OMA em AA por período igual ou superior a 12 semanas e após duas sessões de ensino em Hospital de Dia (HD), entre janeiro e junho de 2021. Métodos: Aplicou-se um questionário(30 perguntas) visando a caracterização clínica/demográfica, terapêutica, reações adversas (RA), vantagens/preocupações percecionadas e avaliação de UCE em T0 (última administração em HD) e T1 (12 semanas em AA), por score de atividade da urticária nos últimos sete dias (UAS7), teste de controlo da urticária (UCT) e índice de qualidade de vida em dermatologia (DLQI). Resultados: Incluíram-se 25 doentes com tempo médio de UCE de 7,4 ±3,9 anos e duração do tratamento com OMA de 3,2 ±1,9 anos. À data do questionário, 52% tinham 3 AA de OMA 300mg, com periodicidade variável entre 4/4 semanas (44%) e 8/8 semanas (12%); 40% sem anti-histamínico associado. Em 88% administrado pelo próprio; 64% relatou igual intensidade de dor na AA face à administração em HD. Não se registaram RA graves. No controlo da UCE não se verificaram diferenças estatisticamente significativas nos scores entre T0 e T1. Todos consideraram a AA vantajosa, valorizando sobretudo a diminuição do tempo/custos despendidos. 48% referiu algum receio na AA, sobretudo na manipulação do OMA. A maioria (76%) considerou o processo simples e prático, valorizando os ensinos prévios em HD; 52% considerou não haver aspetos a melhorar; das sugestões apontadas, 28% referiam-se à simplificação do processo de entrega do OMA. Conclusões: O OMA em AA apresentou impacto positivo na satisfação dos doentes com UCE, mantendo-se o controlo da UCE e segurança terapêutica.

ABSTRACT Growth pattern is essential for economically efficient poultry production. In this study, we aimed to describe the growth curve of chickens of the Canela-Preta breed reared in two different rearing systems, considering their different plumage colors. Initially, 204 one-day-old male and female chicks were randomly distributed in confinement and semi-confinement (102 animals in each system) without separation by gender. The animals were individually identified by wing and foot plastic brands and were weighted every seven days. The body weight and age records were used to estimate the growth curves of the following factors using the Richards model: plumage color, gender, and rearing system. The likelihood ratio test was used to verify the equality of parameters and identify nonlinear models to compare the growth patterns of the evaluated groups. The growth pattern of Canela-Preta chickens changed as a function of gender, plumage color, and rearing system. Females with black plumage, black and gold hens, and males with black and white plumage showed greater sensitivity to changes in rearing systems. Within-breed selection strategies for specific colors can improve the use of growth pattern differences, improving production efficiency. Semi-confinement is suitable for rearing Canela-Preta chickens with any plumage color, as these animals meet the free-range poultry niche market requirements.

ABSTRACT Understanding the dynamics of endemic tree component species based on natural regeneration (NR) and adult trees (AT) is essential for formulating conservation strategies for protecting these species. The objective of the present study was to identify endemic species in a preserved area of secondary forest in the Atlantic Forest domain in Brazil and to evaluate their dynamics over 24 years. Based on inventories carried out from 1992 to 2016 of the NR (diameter at breast height - dbh ≤ 5 cm) and of the AT (dbh ≥ 5 cm) in ten sites with different characteristics (physiographic, edaphic, and successional), it was possible to, initially, identify 58 species classified as endemic to Brazil (EBR) and/or those exclusive to the Brazilian Atlantic Forest (EAF), among the 226 species in the entire survey. Subsequently, this classification was reassessed based on updated information on its occurrence, and only 38 of these species were maintained as endemic to Brazil and/or to the Atlantic Forest. Some species were recorded in the AT and NR strata, in different sites, throughout the study period, while others occurred in only one level (AT or NR), some with low abundance. Among these endemic species, eight are included in the endangered species lists, and 15 can be classified as rare, as there was only one individual in the survey. Considering the two arboreal strata it was observed that some species were abundant in the forest in all inventories and several sites, while others went throughout the study period with few individuals and, in some cases, disappeared due to mortality. These results contribute to understanding the factors that can affect the local abundance of endemic species over time, allowing the definition of conservation actions for protecting these vulnerable species, thus avoiding their extinction.

RESUMO A compreensão da dinâmica das espécies endêmicas do componente arbóreo, com base na regeneração natural (RN) e nas árvores adultas (AA) é fundamental para a formulação de estratégias de conservação dessas espécies. O objetivo do presente estudo foi identificar as espécies endêmicas em uma área preservada de floresta secundária, no domínio da Mata Atlântica, no Brasil, e avaliar sua dinâmica ao longo de 24 anos. Com base em inventários realizados de 1992 a 2016 da RN (diâmetro à altura do peito - dap ≤ 5cm) e das AA (dap ≥ 5 cm), em dez locais com diferentes características (fisiográficas, edáficas e sucessionais), foi possível identificar 58 espécies classificadas como endêmicas do Brasil e/ou àquelas exclusivas da Mata Atlântica brasileira, dentre as 226 espécies de todo o levantamento. Posteriormente, essa classificação foi reavaliada a partir de informações atualizadas de sua ocorrência, sendo que apenas 38 dessas espécies permaneceram como endêmicas do Brasil e/ou da Mata Atlântica. Algumas espécies foram registradas na AA e na RN, em diversos locais, em todo o período do estudo, enquanto outras ocorreram em apenas um nível (AA ou RN), inclusive com baixa abundância. Dentre essas espécies endêmicas, oito estão incluídas em listas de espécies ameaçadas de extinção e 15 podem ser classificadas como raras (apresentaram apenas um indivíduo). Considerando os dois estratos arbóreos, foi observado que algumas espécies permaneceram na floresta em todos os inventários, enquanto outras ingressaram ao longo do período do estudo, com poucos indivíduos, inclusive com elevada mortalidade, deixando de ocorrer na área. Esses resultados contribuem para o entendimento dos fatores que podem afetar a abundância local de espécies endêmicas ao longo do tempo, permitindo a definição de ações de conservação para proteger essas espécies vulneráveis, evitando assim, a sua extinção.

Resumo: Introdução: Uma das diretrizes da atenção básica à saúde (ABS) no Brasil é o primeiro contato da pessoa no sistema de saúde. O acesso ou a acessibilidade é um atributo essencial da APS que teve avaliação ruim em pesquisas brasileiras. O sistema de agendamento certamente influencia o acesso nas unidades de saúde, e o modelo por acesso avançado (AA) tem sido implantado no Brasil, e vem obtendo melhores resultados que modelos tradicionais de agendamento. Objetivo: Este estudo teve como objetivo compreender a percepção de profissionais que atuam em uma unidade básica de saúde de Uberlândia, em Minas Gerais - MG (Centro de Saúde Escola Jaraguá (Cejar)), sobre a implementação do AA. Método: Trata-se de um estudo qualitativo que utilizou o grupo focal e a análise de conteúdo. Resultado: Foram delimitadas as seguintes categoriais temáticas: Desafios desafios na consolidação da APS e investimento em equipes mínimas; Tensionamentos tensionamentos quanto ao aumento na demanda de atendimentos individuais e sobrecarga de trabalho; Educação educação e saúde: intersecções necessárias entre ensino, serviço, gestão e comunidade. Conclusão: O Cejar apresentou particularidades com a implementação do AA por ser uma unidade de ensino, por não ter Estratégia de Saúde da Família (ESF) consolidada e pela sobrecarga de trabalho advinda com dessa agenda, o que pode contribuir para o planejamento de outras equipes que tenham interesse pelo AA.

Abstract Introduction: One of the guidelines of Primary Health Care (PHC) in Brazil is the person’s user’s first contact with the health system. Access or accessibility is an essential attribute of PHC that has been poorly assessed in Brazilian surveys. The appointment scheduling system certainly influences access in health units, and the model for advanced access (AA) has been implemented in Brazil, and has been achievinggetting better results than traditional scheduling models. Objective: The objective of the presentthis study is to understand the perception of professionals who work in a basic health unit in Uberlândia-MG (Centro de Saúde Escola Jaraguá) about the implementation of AA. Method: It is a qualitative study that used the focus group methodology and content analysis. Result: The following thematic categories were delimited: Challenges in the consolidation of PHC and investment in minimal teams; Tensions regarding the increasedin the demand for individual careassistance and work overload; Education and health: necessary intersections between teaching, service, management and community. Conclusion: It was concluded that CEJAR presented specific characteristicsparticularities with the implementation of AA as it isfor being a teaching unit, doesfor not haveing a consolidated Family Health Strategy (FHS) and due to thefor the work overload resulting from this scheduleagenda, which can contribute to the planning of other teams that are interested in AA.

ABSTRACT Objective To investigate whether different genotypes of p.Arg16Gly, p.Gln27Glu, p.Arg19Cys and p.Thr164Ile variants interfere in response to treatment in children and adolescents with moderate to severe acute asthma. Methods This sample comprised patients aged 2 to 17 years with a history of at least two wheezing episodes and current moderate to severe asthma exacerbation. All patients received multiple doses of albuterol and ipratropium bromide delivered via pressurized metered-dose inhaler with holding chamber and systemic corticosteroids. Hospital admission was defined as the primary outcome. Secondary outcomes were changes in forced expiratory volume in the first second after 1 hour of treatment, and for outpatients, length of stay in the emergency room. Variants were genotyped by sequencing. Results A total of 60 patients were evaluated. Hospital admission rates were significantly higher in carriers of the genotype AA relative to those with genotype AG or GG, within the p.Arg16Gly variant (p=0.03, test χ2, alpha=0.05). Secondary outcomes did not differ between genotypes. Conclusion Hospital admission rates were significantly higher among carriers of the genotype AA within the p.Arg16Gly variant. Trial registration: ClinicalTrials.gov: NCT01323010

ABSTRACT The objective of this study was evaluate whether pretransport feed withdrawal affects welfare, carcass, and meat characteristics of European quails. A total of 120 European quails were used, with an initial age of 15 days. Bird feed was removed before transport to the slaughterhouse at the following times, which characterised the different treatments: zero hours, three hours, six hours, nine hours and twelve hours. The transport took 54 minutes to cover 27 kilometres to a commercial slaughterhouse. The birds were slaughtered at 41 days of age. During bleeding, blood samples were collected. Blood glucose, total protein, albumin, uric acid, and corticosterone concentrations were measured. The carcasses and meat characteristics were measured. Poultry body weight decreased and blood glucose concentrations increased with the increase in feed withdrawal time. The treatments did not affect carcass weights. Carcass yields after three hours fasting were similar to those in the six hours and nine hours groups, indicating that gastrointestinal tracts were empty after the third hour. Meat quality was negatively affected (pH, lightness, water holding capacity, cooking loss) by the increase in feed withdrawal time; integrated parameters that characterise dark, firm, dry meat. Pre transport feed withdrawal time should be three hours to empty the gastrointestinal tract and minimise losses in meat quality of European quails. It is necessary to adjust feed withdrawal so that it does not exceed this time, since there is no technical justification for supporting it.

Ambuic acid (AA) is a highly-modified cyclohexenone and known as a promising inhibitor of quorum sensing in methicillin-resistant Staphylococcus aureus, and is thus a candidate as an antivirulence drug. This molecule is mainly produced by the species of Pestalotiopsis and, since its discovery twenty years ago, only a restricted amount of AA-derivatives have been described. Despite being a promising subject, methods for the analysis of modified AA-analogues via mass spectrometry remain unexplored. In order to adress this question, the marine fungus Pestalotiopsis sp. 4A11 associated with the ascidian Didemnum perlucidum was grown in a solid rice medium and its crude extract was chemically studied. From this extract, AA and 10-hydroxy ambuic acid (10-HAA) were isolated and identified using NMR spectroscopy with the aim of obtaining model compounds for the MS analysis. These served as reference compounds (seeds) to guide the dereplication of other AA-analogues via LC-MS/MS-based molecular networking. Based on the manual interpretation of the fragmentation pathways of the seeds and related compounds observed in the networks, six AA-derivatives were dereplicated in the extract. Furthermore, three analogues with unprecedented chemical formulas were proposed as putative unprecedented AA-derivatives. The fragmentation annotation proposed represents a fast and feasible method for characterizing AA-derivatives.

Abstract Aluminum alloys of 7xxx series have excellent characteristics and mechanical properties, being widely used in primary aircraft structures. However, the welding of these alloys by conventional arc welding processes results in an excessive mechanical resistance degradation and increasing in residual stress level. In this context, Friction Stir Welding (FSW) process has received attention in recent years mainly because it does not reach the materials melting point during the process. This work aims to evaluate the influence of the tool rotation and welding speed on microstructure and mechanical properties of AA 7075-T651 aluminum alloy welded joints by FSW process. Therefore, four welded joints obtained with different welding and tool rotation speed were subjected to tensile and microhardness tests. The microstructures of the welded joints were evaluated through analysis by optical microscopy and Scanning Electron Microscopy (SEM). The retreating side of the welded joints showed a higher occurrence of microstructural welding defects. Welded joints with yield strength (YS) 50% higher than those of base metal and with ultimate tensile strength up to 380 MPa were achieved.

Abstract Objective: The aim of this study was to evaluate the association of -924 G>A (rs2232365) and -3279 C>A (rs3761548) FOXP3 variants with IBD susceptibility, clinical and endoscopic activity, and IL-10 and TGF-β1 plasma levels. Method: The study included 110 IBD female patients, 60 with Ulcerative Colitis (UC) and 50 with Crohn’s Disease (CD), and 154 female controls. FOXP3 variants were determined with Polymerase Chain Reaction-Restriction Fragment Length Polymorphism (PCR-RFLP). Plasma levels of IL-10 and TGF-β1 were determined using immuno-fluorimetric assay. Results: AA genotype of rs2232365 and rs3761548 was associated with CD (OR = 3.147, 95% CI 1.015-9.758, p = 0.047) and UC (OR = 3.221, 95% CI 1.050-9.876, p = 0.041) susceptibility, respectively. However, were not associated with TGF-β1 and IL-10 levels, and endoscopic/clinical activity disease. GAGA haplotype was associated with IBD (OR = 4.003, 95% CI 1.100–14.56, p = 0.035) and UC susceptibility (OR = 6.107, 95% CI 1.609–23.18, p = 0.008). In addition, IBD patients with the GAGA haplotype had lower TGF-β1 levels (p = 0.041). Moreover, G/C haplotype (dominant model) had a protective effect of 60% in CD susceptibility and lower Endoscopic Severity Index. Conclusions: These results suggest that FOXP3 variants could exert a role in the Treg, which could be one of the factors involved in the susceptibility and pathogenesis of IBD.

Resumo Introdução: A Autoavaliação das Práticas de Segurança do Paciente é um ato regulatório para melhoria da qualidade do cuidado. Porém, há dúvidas sobre a validade das suas informações. O objetivo deste estudo foi analisar a sua confiabilidade. Método: Estudo piloto de análise da confiabilidade de 21 indicadores simples e um composto da autoavaliação como forma de embasar uma amostra nacional em estudos futuros. Participaram hospitais com leitos de terapia intensiva e comparou dados da Autoavaliação (AA) e Autoavaliação Revisada (AR) pela vigilância sanitária (Visa) com a Inspeção Presencial (IP). A análise incluiu os coeficientes Kappa e de correlação intraclasse. Resultados: Comparando com a IP, a concordância foi aceitável (Kappa≥0,4) em 12 indicadores da AA e em 18 da AR. Os indicadores menos confiáveis são relativos a protocolos de prevenção de infecções. Quanto ao indicador composto do nível de adesão, a confiabilidade melhorou com revisão da Visa (AA=0,89 e AR=0,94), embora a concordância da classificação de alta conformidade tenha sido baixa. Conclusões: A AR se mostrou essencial para melhorar a confiabilidade da Autoavaliação. Ademais, identificou-se necessidade de revisar alguns indicadores e o instrumento de verificação pela Visa.

Abstract Introduction: The Patient Safety Self-Assessment Practices is a regulatory action to enhance quality of care. However, validation of its information requires attention. This study aimed to analyze reliability of the Patient Safety Self-Assessment Practices. Methods: Pilot study analyzing the reliability of 21 simple indicators and 1 composite of self-assessment to provide a national sample in future studies. Hospitals with intensive unit care beds participated in the study, and data from self-assessment (SA) and revised self-assessment (RSA) by the health surveillance (HS) were compared with on-site inspection (OSI). Analyses included Kappa and intraclass correlation coefficients. Results: Concordance was satisfactory (Kappa ≥ 0.4) in 12 indicators of SA and 18 indicators of RSA compared with OSI. The least reliable indicators were related to infection prevention protocols. Reliability of the adherence level composite indicator improved with HS revision (SA = 0.89 and RSA = 0.94), despite the low concordance of the high compliance classification. Conclusion: RSA was essential to improve reliability of SA. In addition, some indicators and assessment tools of the HS need revision.

Resumo Introdução: A Autoavaliação das Práticas de Segurança do Paciente é um ato regulatório para melhoria da qualidade do cuidado. Porém, há dúvidas sobre a validade das suas informações. O objetivo deste estudo foi analisar a sua confiabilidade. Método: Estudo piloto de análise da confiabilidade de 21 indicadores simples e um composto da autoavaliação como forma de embasar uma amostra nacional em estudos futuros. Participaram hospitais com leitos de terapia intensiva e comparou dados da Autoavaliação (AA) e Autoavaliação Revisada (AR) pela vigilância sanitária (Visa) com a Inspeção Presencial (IP). A análise incluiu os coeficientes Kappa e de correlação intraclasse. Resultados: Comparando com a IP, a concordância foi aceitável (Kappa≥0,4) em 12 indicadores da AA e em 18 da AR. Os indicadores menos confiáveis são relativos a protocolos de prevenção de infecções. Quanto ao indicador composto do nível de adesão, a confiabilidade melhorou com revisão da Visa (AA=0,89 e AR=0,94), embora a concordância da classificação de alta conformidade tenha sido baixa. Conclusões: A AR se mostrou essencial para melhorar a confiabilidade da Autoavaliação. Ademais, identificou-se necessidade de revisar alguns indicadores e o instrumento de verificação pela Visa.

Abstract Introduction: The Patient Safety Self-Assessment Practices is a regulatory action to enhance quality of care. However, validation of its information requires attention. This study aimed to analyze reliability of the Patient Safety Self-Assessment Practices. Methods: Pilot study analyzing the reliability of 21 simple indicators and 1 composite of self-assessment to provide a national sample in future studies. Hospitals with intensive unit care beds participated in the study, and data from self-assessment (SA) and revised self-assessment (RSA) by the health surveillance (HS) were compared with on-site inspection (OSI). Analyses included Kappa and intraclass correlation coefficients. Results: Concordance was satisfactory (Kappa ≥ 0.4) in 12 indicators of SA and 18 indicators of RSA compared with OSI. The least reliable indicators were related to infection prevention protocols. Reliability of the adherence level composite indicator improved with HS revision (SA = 0.89 and RSA = 0.94), despite the low concordance of the high compliance classification. Conclusion: RSA was essential to improve reliability of SA. In addition, some indicators and assessment tools of the HS need revision.

Abstract Duchenne Muscular Dystrophy (DMD) reproductive alterations and the influence of antioxidant treatments may aid in understanding morphometry testicular quantification. In this context, the aim of the present study was to characterize the intertubular compartment (ITC) morphometry of animal testes in mdx mice supplemented with ascorbic acid (AA). Sixteen mice were used, namely the C57BL/10 (non-dystrophic) and C57BL/10Mdx (dystrophic) lineages, distributed into the following groups: Control (C60), Dystrophic (D60), Control supplemented with AA (CS60), Dystrophic supplemented with AA (DS60). A total of 200 mg/kg of AA were administered to mice for 30 days. Subsequently, the testicles were collected, weighed, and fragmented. The obtained fragments were fixed in Karnovsky's solution (pH 7.2) and embedded in historesin for morphometric and transmission electron microscopy assessments. Leydig cells were hypertrophic in the D60 group, but was reverted by AA supplementation in the DS60 group. The DS60 group also exhibited increased intertubular volume compared to the CS60 group. The ultrastructural images identified multilamellar bodies in dystrophic animals (lipid storage) and telocyte cells (transport substances) in both control and dystrophic animals. Morphometric alterations were, therefore, noted in the intertubular compartment due to Duchenne muscular dystrophy (DMD), with AA administration capable of altering Leydig cells in this condition.

RESUMO A manutenção do rebordo ósseo alveolar é prerrogativa para o sucesso da terapia com implantes. A fibrina rica em plaquetas (PRF) poderia beneficiar o reparo ósseo, mas seus resultados microscópicos quantitativos são ainda inconclusivos. O objetivo deste trabalho foi analisar histomorfometricamente alvéolos dentários humanos pós-extração tratados com fibrina autóloga, fosfato de cálcio bifásico ou sua associação. A amostra consistiu de pacientes adultos voluntários saudáveis, com indicação clínica e tomográfica de enxerto unitário pós-exodontia de pré-molares superiores para manutenção de rebordo alveolar e posterior implante. Os 10 pacientes remanescentes no estudo foram divididos em 3 grupos de acordo com o tipo de preenchimento usado no alvéolo dentário: plug de PRF autóloga recoberto por membrana de PRF (G1), PRF associada a enxerto aloplástico de hidroxiapatita com beta fosfato tricálcio recoberto por membrana de colágeno (G2) ou enxerto aloplástico de beta fosfato tricálcio recoberto por membrana de colágeno (controle). Após 8 meses, foram realizadas biópsias ósseas nos locais enxertados e os pacientes seguiram a reabilitação implanto-protético. Blocos histológicos incluídos em parafina foram microtomizados para gerar 3 lâminas de secções em diferentes profundidades, que foram coradas em HE. A avaliação histomorfométrica analisou 30 fotomicrografias por bloco, quantificando a presença percentual de osso neoformado, tecido conjuntivo e biomaterial remanescente pelo programa ImageJ. Os dados paramétricos permitiram comparações intergrupos usando ANOVA e pós-teste de comparações múltiplas de Tukey com significância estatística de 5% (p<0,05), havendo normalidade dos 3 grupos pelo teste Jarque-Bera (p>0,05). Houve maior média de osso neoformado em G1 (68,83%) em comparação a G2 (35,69%) e controle (16,28%). Houve maior presença de tecido conjuntivo no controle (61,56 %). Biomaterial remanescente foi maior em G2 (15,75%), mas não diferiu estatisticamente para o controle. A regeneração óssea obtida com PRF isolada ou em associação sugere a eficácia destas terapias, encorajando o uso clínico deste concentrado sanguíneo em procedimentos odontológicos.

ABSTRACT It is essential to maintain the alveolar bone ridge to ensure the success of implant therapy. Platelet-rich fibrin (PRF) may benefit bone repair, but its quantitative microscopic results are still inconclusive. The aim of this study was to histomorphometrically analyze human dental alveoli after extraction treated with autologous fibrin, biphasic calcium phosphate or sticky bone. The sample consisted of healthy adult volunteer patients, with clinical and tomographic indication for single post-extraction graft of upper premolars for maintenance of the alveolar ridge and subsequent implantation. The 10 remaining patients in the study were divided into three groups according to the type of filling used in the dental socket: autologous PRF plug covered by a PRF membrane (G1), PRF associated with an alloplastic graft based on hydroxyapatite with beta tricalcium phosphate covered by a collagen membrane (G2) or alloplastic graft based on beta tricalcium phosphate covered by collagen membrane (control). After 8 months, bone biopsies were performed at the grafted sites and the patients underwent implant-prosthetic rehabilitation. Paraffin-embedded tissue blocks were routinely processed and sectionsfrom different depths were mounted in 3 slides and stained with HE. The histomorphometric evaluation analyzed 30 photomicrographs per block, quantifying the percentage presence of newly formed bone, connective tissue and remaining biomaterial using the ImageJ software. Parametric data enabled intergroup comparisons using ANOVA and Tukey’s post-hoc test for multiple comparison with statistical significance of 5% (p<0.05), with normality of the 3 groups by the Jarque-Bera test (p>0.05). There was a higher mean of newly formed bone in G1 (68.83%) compared to G2 (35.69%) and control (16.28%). There was greater presence of connective tissue in the control (61.56%). Remaining biomaterial was higher in G2 (15.75%), but did not differ statistically from the control. Bone regeneration obtained with PRF alone or sticky bone suggests the efficacy of these therapies, encouraging the clinical use of this blood concentrate in dental procedures.

This work aims to know the perceptions that university students from public schools have about the processes of reading and writing in the period of schooling related to the stage of Elementary School: Initial and Final Years. For this, semi-structured interviews were carried out with 13 students from the Psychology course at the Federal University of Ceará – Campus Sobral, and a Thematic Analysis of the collected data was subsequently carried out. It was possible to notice that traditional teaching methodologies are still very present in everyday school life, thus imposing certain difficulties that enable critical reading and reflective writing. In addition, socioeconomic aspects and curricular differences appear as fundamental factors to be analyzed, especially with regard to academic performance and the relationship of students with reading and writing habits. It is concluded that the presence of methodologies aligned with traditional and conservative positions limit the possibilities of building knowledge within the classroom, and the issues that cut across socioeconomic and curricular aspects directly impact the students' academic performance.

Esse trabalho tem como objetivo conhecer as percepções que alunos universitários provenientes de escolas públicas têm sobre os processos de leitura e escrita no período de escolarização referente à etapa de Ensino Fundamental: Anos Iniciais e Anos Finais. Para isso, foram escolhidos como semiestruturados com 13 estudantes do curso de Psicologia da Universidade Federal do Ceará - Campus Sobral, sendo posteriormente realizada uma Análise Temática dos dados coletados. Foi possível perceber que as metodologias tradicionais de ensino ainda estão bastante presentes no cotidiano escolar, impondo, dessa forma, certas dificuldades que possibilitem uma leitura crítica e uma escrita reflexiva.Além disso, os aspectos socioeconômicos e as diferenças curriculares aparecem como fatores fundamentais a promoção, sobretudo no que diz respeito ao desempenho acadêmico e à relação dos estudantes com os hábitos de ler e escrever. Conclui-se que aa presença de metodologias alinhadas a traços tradicionais e conservadoras limitam como possibilidades de construção do conhecimento no interior das salas de aula, e as questões que atravessam os aspectos socioeconômicos e curriculares impactam a forma direta no desempenho escolar dos estudantes.