Abstract Framework This paper explores how a qualitative systematic literature review (SLR) can contribute to our understanding of the trends in upper-limb wearable devices. These devices are pieces of electronic equipment that can be worn as accessories, such as watches, or embedded in clothing, including gloves and sleeves, and could play an essential role in subjects' quality of life after any occurrence that affects their possibility to perform basic activities autonomously. Moreover, these devices can be used to improve manual performance tasks like surgical or precision tasks, and even more so when performed under extreme ambient temperature conditions. Goals and Methods: A SLR on upper-limb embedded devices was conducted based on scientific documents retrieved from the Scopus database. Two research questions were outlined: "How has this technology been evolving?" and "What is the trend according to the fields of application?". The combination of keywords (upper-limb* AND wearable* AND device*) was used in the title, abstract, and keywords fields. Results: A total of 555 documents were obtained. Descriptive statistical and bibliometric analyses were conducted, identifying trends, knowledge gaps, and the future direction of research. The free software VOSviewer was used to construct data visualization bibliometric maps of the co-authorship and co-citation network. A subset of 26 documents was considered for the critical qualitative synthesis. This step facilitated the visualization and exploration of the interconnectedness among authors and the citation patterns within the literature. Combining the information gathered enables addressing the extent and the emerging trends in upper-limb embedded devices' development according to the field they are applied. Final considerations: With this research, a starting point in developing a proof of concept of a novel device aimed at improving dexterity in challenging environments is established.

Abstract This article describes the use of a low-cost softwaredefined radio applied to an Electromagnetic Compatibility (EMC) test. The proposed system is indicated for cases when an autonomous instrument is better suited, i.e., when there is no need for external signal or power connections. As a proof of concept, a metallic cavity has its shielding parameter measured, and the obtained results illustrate the kind of outputs the instrument can provide. Details concerning the hardware and software utilized are mentioned, alongside observed pitfalls and trade-offs. It is an affordable and versatile method, which can replace the traditional use of spectrum analyzers and receivers, especially in precompliance tasks. lowcost low cost EMC (EMC test suited ie i e i.e. connections concept measured provide mentioned tradeoffs. tradeoffs trade offs. offs trade-offs method receivers tasks i.e

Abstract The Brazilian Caatinga has already lost extensive areas of original vegetation, thus it becomes imperative to perform fauna inventories within this region to fill geographical sampling gaps. Herein, we present a taxonomic list of the herpetofauna of a mountain chain located in the central zone of Rio Grande do Norte (RN) state whose region includes two priority areas for conservation of the Caatinga: “CA087 – Serra de Santana” in the west, and “CA078 – Nascente do Potengi” in the east. The sampling was carried out using methods of visual searching, pitfall traps with drift fences, specimens rescued during vegetation suppression activities in wind energy projects, occasional encounters, and third-party records. We recorded 19 amphibian species and 53 reptile species (23 lizards, 24 snakes, five amphisbaenians and one chelonian). About half of the recorded species have distributions entirely or mostly in the Caatinga. The mountain range sampled in this study harbors virtually all species found in nearby lowlands of the “sertaneja” depression of RN state, plus some relevant species with relictual distributions in the Caatinga, highlighting the importance of these highland areas for conservation of the Caatinga herpetofauna.

Resumo A Caatinga brasileira já perdeu extensas áreas de vegetação original, por isso torna-se importante realizar inventários de fauna nesta região para preencher lacunas geográficas de amostragem. Aqui, apresentamos uma lista taxonômica da herpetofauna de uma cadeia serrana localizada na zona central do estado do Rio Grande do Norte (RN) e cuja região inclui duas áreas prioritárias para conservação da Caatinga: “CA087 – Serra de Santana” a oeste, e “CA078 – Nascente do Potengi” a leste. A amostragem foi realizada por meio de métodos de busca visual, armadilhas de interceptação e queda, espécimes resgatados durante atividades de supressão vegetal em projetos de energia eólica, encontros ocasionais e registros de terceiros. Registramos 19 espécies de anfíbios e 53 espécies de répteis (23 lagartos, 24 serpentes, cinco anfisbênias e um quelônio). Cerca de metade das espécies registradas tem distribuição inteiramente ou predominantemente na Caatinga. A cadeia serrana amostrada neste estudo abriga praticamente todas as espécies encontradas nas planícies próximas da depressão sertaneja do RN, além de algumas espécies relevantes com distribuição relictual na Caatinga, destacando a importância dessas áreas de altitude para a conservação da herpetofauna da Caatinga.

Abstract Hydrocotyle umbellata L., Araliaceae, is a species that is recommended in Ayurvedic medicine for its effects on the central nervous system, such as anxiolytic and memory-stimulant effects. Despite the medicinal potential of this species, its phytopharmaceutical and technological potential to produce standardized extracts has not been investigated. This study analyzes the influence of spray drying parameters on the contents of the chemical markers (total phenolic, total flavonoid, and hibalactone) and the functional properties of H. umbellata extract. The optimization of drying conditions was performed using a central composite design combined with response surface methodology and desirability function approach. The mathematical models fitted to experimental data indicated that all the evaluated drying parameters significantly influenced the chemical contents. The optimal conditions were: inlet temperature of 120 °C, feed flow rate of 4 mL min-1, and colloidal silicon dioxide:maltodextrin ratio of 16%:4%. Under these conditions, the powder samples had spherical particles and desirable physicochemical and functional properties, such as low water activity and moisture content, good product recovery, reconstitution, and flowability. Thus, spray drying might be a promising technique for processing standardized H. umbellata extracts.

Abstract Objective Breast cancer (BC) biomarkers, such as hormone receptors expression, are crucial to guide therapy in BC patients. Antiandrogens have been studied in BC; however, limited data are available on androgen receptor (AR) expression test methodology. We aim to report the core needle biopsy (CNB) accuracy for AR expression in BC. Methods Patients diagnosed with stage I-III invasive BC from a single institution were included. Androgen receptor expression was evaluated by immunohistochemistry (IHC) using 1 and 10% cutoff and the AR expression in surgical specimens (SS) was the gold standard. Kappa coefficients were used to evaluate the intraprocedural agreement. Results A total of 72 patients were included, with a mean age of 61 years old and 84% were Luminal A or B tumors. The prevalence of AR expression in all BC samples was 87.5% using a cutoff ≥ 10% in SS. With a cutoff value ≥ 1%, CNB had an accuracy of 95.8% (Kappa value = 0.645; 95% confidence interval [CI]: 0.272–1.000; p< 0.001) and 86.1% (Kappa value = 0.365; 95% CI: 0.052–0.679; p< 0.001) when ≥ 10% cutoff was used for AR positivity. Androgen receptor expression in CNB (cutoff ≥ 1%) had a sensitivity of 98.5%, specificity of 60%, positive predictive value of 97.0%, and a negative predictive value of 76.9% in the detection of AR expression in SS. Conclusion Core needle biopsy has good accuracy in evaluating AR expression in BC. The accuracy of CNB decreases with higher cutoff values for AR positivity.

Resumo Objetivo Biomarcadores, como a expressão de receptores hormonais, são cruciais para guiar a terapia de pacientes com câncer de mama. Apesar de ter sido estudado, poucos dados estão disponíveis sobre o método de testagem. Buscamos avaliar a precisão da biópsia com agulha de grande calibre (CNB, na sigla em inglês) para a expressão de receptores androgênicos (AR, na sigla em inglês) no câncer de mama. Métodos Foram incluídos pacientes de uma única instituição diagnosticados com câncer de mama invasivo estágio I-III. A expressão de AR foi avaliada por imunohistoquímica, com valores de cutoff de 1 e 10%. A expressão de AR em espécimes cirúrgicos foi o padrão ouro. O coeficiente Kappa foi usado para avaliar a concordância entre procedimentos. Resultados Foi incluído um total de 72 pacientes, com idade média de 61 anos; 84% eram tumores luminais A ou B. A prevalência da expressão de AR em todas as amostras foi de 87.5%, com cutoff ≥ 10%. Com um valor de cutoff ≥ 1%, a CNB teve precisão de 95.8% (Kappa = 0.64; intervalo de confiança [IC] 95%: 0.272–1.000; p< 0.001) e 86.1% (Kappa = 0.365; CI95%: 0.052–0.679]; p< 0.001) quando um cutoff ≥ 10% foi usado para AR positivo. A expressão de AR na CNB (cutoff ≥ 1%) teve a sensibilidade de 98.5%, especificidade de 60%, valor preditivo positivo de 97.0% e valor preditivo negativo de 76.9% na detecção. Conclusão |Biópsia com agulha de grande calibre tem uma boa precisão em avaliar a expressão de AR no câncer de mama. A precisão do método cai com valores elevados de cutoff para AR positivo.

ABSTRACT Introduction: In healthy individuals and in patients with adolescent idiopathic scoliosis (AIS), the curvature of the cervical spine varies greatly, with approximately 36-40% of AIS patients having kyphosis of the cervical spine. Aim: To assess the curvature of the cervical spine in AIS patients and subgroups according to Lenke’s classification (1 to 6). Methods: 107 patients with AIS were assessed for cervical lordosis (C2-C7) using the Cobb method, subdivided into lordosis and cervical kyphosis. The following parameters were assessed and compared between the subgroups: T5-T12 thoracic kyphosis (TK); L1-S1 lumbar lordosis (LL), pelvic incidence (PI), sagittal vertical axis (SVA), T1 pelvic angle (TPA), C2-C7 cervical lordosis, C1-C2 cervical lordosis, T1 slope (T1s), neck tilt, thoracic inlet angle (TIA) and cervical sagittal axis (CSVA). Results: Kyphosis of the cervical spine was observed in 48% of patients. The Lenke classification curves (1 to 6) showed no difference with regard to the curvature of the cervical spine. In the subgroup with cervical lordosis, thoracic kyphosis, and T1 slope were significantly higher. Neck tilt was significantly higher in the subgroup with kyphosis. Conclusions: Almost half of the patients have kyphosis of the cervical spine, and the curvature of the cervical spine in AIS patients varies widely. Thoracic kyphosis, T1 slope, and neck tilt are significantly different between the subgroups of patients with lordosis or kyphosis. Level of Evidence III; Observational and Retrospective Study.

RESUMEN Introducción: En individuos sanos y en pacientes con escoliosis idiopática del adolescente (EIA), la curvatura de la columna cervical varía enormemente, y aproximadamente el 36-40% de los pacientes con EIA presentan cifosis de la columna cervical. Objetivo: Evaluar la curvatura de la columna cervical en pacientes con EIA y subgrupos según la clasificación de Lenke (1 a 6). Métodos: Se evaluó la lordosis cervical (C2-C7) de 107 pacientes con EIA mediante el método de Cobb, subdivididos en dos grupos: lordosis y cifosis cervical. Se evaluaron y compararon los siguientes parámetros entre los subgrupos: Cifosis torácica (TK) T5-T12; lordosis lumbar (LL) L1-S1, incidencia pélvica (PI), eje vertical sagital (SVA), ángulo pélvico T1 (TPA), lordosis cervical C2-C7, lordosis cervical C1-C2, inclinación T1 (T1s), inclinación del cuello, ángulo de la entrada torácica (TIA) y eje sagital cervical (CSVA). Resultados: Se observó cifosis de la columna cervical en el 48% de los pacientes. Las curvas de clasificación de Lenke (1 a 6) no mostraron diferencias con respecto a la curvatura de la columna cervical. En el subgrupo con lordosis cervical, la cifosis torácica y la inclinación T1 eran significativamente mayores. La inclinación cervical fue significativamente mayor en el subgrupo con cifosis. Conclusiones: Casi la mitad de los pacientes presentan cifosis de la columna cervical, y la curvatura de la columna cervical en los pacientes con EIA varía ampliamente. La cifosis torácica, la inclinación T1 y la inclinación cervical son significativamente diferentes entre los subgrupos de pacientes con lordosis o cifosis. Nivel de Evidencia: III; Estudio Observacional y Retrospectivo.

RESUMO Introdução: Nos indivíduos saudáveis e nos pacientes com escoliose idiopática do adolescente (EIA) a curvatura da coluna cervical apresenta grande variação, sendo que aproximadamente 36-40% dos pacientes com EIA apresentam cifose da coluna cervical. Objetivo: Avaliar a curvatura da coluna cervical nos pacientes com EIA e nos subgrupos, de acordo com a classificação de Lenke (1 a 6). Métodos: Foram avaliados 107 pacientes com EIA quanto a lordose cervical (C2-C7), pelo método de Cobb, subdivididos em dois grupos: lordose e cifose cervical. Foram avaliados e comparados entre os subgrupos os seguintes parâmetros: cifose torácica T5-T12 (TK); lordose lombar L1-S1 (LL), incidência pélvica (PI), eixo sagital vertical (SVA), ângulo T1 pélvico (TPA), lordose cervical C2-C7, lordose cervical C1-C2, inclinação T1 (T1s), inclinação cervical (neck tilt), ângulo entrada torácica (TIA) e eixo cervical sagital (CSVA). Resultados: A cifose da coluna cervical foi observada em 48% dos pacientes. As curvas de classificação de Lenke (1 a 6) não apresentaram diferença com relação à curvatura da coluna cervical. No subgrupo com lordose cervical a cifose torácica e a inclinação de T1 foram significativamente maiores. A inclinação cervical foi significativamente maior no subgrupo com cifose. Conclusões: Quase a metade dos pacientes apresenta cifose da coluna cervical, sendo amplamente variável a curvatura da coluna cervical nos pacientes com EIA. A cifose torácica, a inclinação de T1 e a inclinação cervical são significativamente diferentes entre os subgrupos de pacientes com lordose ou cifose. Nível de Evidência III; Estudo Observacional e Retrospectivo.

ABSTRACT Introduction: The correlation between sagittal and coronal parameters in patients with adolescent idiopathic scoliosis (AIS) presents contradictory results and is not fully understood. Objective: To evaluate the sagittal vertical axis (SVA) and its correlation with sagittal parameters and the main curve in patients diagnosed with AIS. Methods: 109 patients with AIS and indications for surgical treatment were evaluated. The correlation of the SVA with sagittal parameters (thoracic kyphosis, lumbar lordosis, pelvic incidence, lumbar lordosis, pelvic version, and sacral inclination) and with the main curves (main thoracic and thoracolumbar/lumbar) was evaluated. Results: The SVA ranged from -208 to 66.30 mm (mean -19.64 ± 36.21), above 50 mm in two patients (1.83%). There was no correlation between the sagittal parameters and the magnitude of the main curve and the SVA. Conclusion: The SVA showed great variability in the group of patients with AIS; a small percentage of patients had an SVA greater than 50 mm. The low percentage of patients with sagittal misalignment showed the compensatory capacity of young patients with vertebral deformity. Level of Evidence: III; Observational and Retrospective Study.

RESUMEN Introducción: La correlación entre los parámetros sagitales y coronales en pacientes con escoliosis idiopática del adolescente (EIA) presenta resultados contradictorios y no se comprende completamente. Objetivo: Evaluar el eje vertical sagital (SVA) y su correlación con los parámetros sagitales y la curva principal en pacientes diagnosticados de EIA. Métodos: Se evaluaron 109 pacientes con EIA e indicación de tratamiento quirúrgico. Se evaluó la correlación del SVA con parámetros sagitales (cifosis torácica, lordosis lumbar, incidencia pélvica, lordosis lumbar, versión pélvica e inclinación sacra) y con las curvas principales (torácica principal y toracolumbar/lumbar). Resultados: El SVA osciló entre -208 y 66,30 mm (media -19,64 ± 36,21), siendo superior a 50 mm en dos pacientes (1,83%). No hubo correlación entre los parámetros sagitales o la magnitud de la curva principal y el SVA. Conclusión: El SVA mostró una gran variabilidad en el grupo de pacientes con EIA y un pequeño porcentaje de pacientes presentó una SVA superior a 50 mm. El bajo porcentaje de pacientes con desalineación sagital mostró la capacidad compensatoria de los pacientes jóvenes con deformidad vertebral. Nivel de Evidencia: III; Estudio Observacional y Retrospectivo.

RESUMO Introdução: A correlação entre os parâmetros sagitais e coronais nos pacientes com escoliose idiopática do adolescente (EIA) apresenta resultados contraditórios e não está totalmente esclarecida. Objetivo: Avaliar o eixo sagital vertical (SVA) e sua correlação com parâmetros sagitais e a curva principal de pacientes com diagnóstico de EIA. Métodos: Foram avaliados 109 pacientes com EIA e indicação de tratamento cirúrgico. Foi avaliada a correlação do SVA com parâmetros sagitais (cifose torácica, lordose lombar, incidência pélvica, lordose lombar, versão pélvica e inclinação do sacro) e com as curvas principais (torácica principal e toracolombar/lombar). Resultados: O SVA variou de -208 a 66,30 mm (média -19,64 ± 36,21), ficando acima de 50 mm em dois pacientes (1,83%). Não foi observada correlação dos parâmetros sagitais e da magnitude da curva principal com o SVA. Conclusão: O SVA apresentou grande variabilidade no grupo de pacientes com EIA e pequena porcentagem dos pacientes apresentaram SVA maior que 50 mm. A baixa porcentagem de pacientes com desalinhamento sagital evidenciou a capacidade compensatória dos pacientes jovens e com deformidade vertebral. Nível de Evidência: III; Estudo Observacional e Retrospectivo.

Resumo Objetivo: analisar os relatos de profissionais de enfermagem sobre a experiência e vivência na assistência prestada aos pacientes hospitalizados com covid-19. Materiais e método: estudo exploratório, com análise qualitativa, do qual participaram 12 enfermeiros e oito técnicos de enfermagem de um hospital público no Brasil, realizado entre dezembro de 2020 e fevereiro de 2021. Como critério de inclusão estavam profissionais que prestavam assistência a pacientes com covid-19, em unidades de emergência, de terapia intensiva e de internação e pelo menos um ano de experiência na instituição. A análise das entrevistas pela análise de conteúdo e pela análise de similitude que gerou uma árvore de similitude e foi utilizado o método Reinert para as categorias temáticas. Resultados: a maioria dos participantes foi mulher, com média de 34,15 anos e experiência de 4,85 anos. Das análises, as palavras “paciente”, “ficar” e “achar” foram as mais frequentes e as categorias “sentimentos dos profissionais de enfermagem ante a pandemia”; “papel do enfermeiro e trabalho com a equipe multiprofissional nos cuidados ao paciente com covid-19”; “cuidados no atendimento ao paciente com covid-19” e “preocupação dos profissionais de enfermagem de seus familiares adoecerem durante a pandemia”. Conclusões: a enfermagem é predominantemente constituída por mulheres e, nos seus relatos sobre a experiência e a vivência de cuidar de paciente com covid-19, apontaram que a preocupação e o medo foram predominantes, sendo a família um dos fatores protetores para suportar os riscos de trabalhar contra algo novo e que pode culminar com a morte.

Resumen Objetivo: analizar los relatos de profesionales de enfermería sobre la experiencia y vivencia en la asistencia brindada a los pacientes hospitalizados con covid-19. Materiales y método: estudio exploratorio, con análisis cualitativo, en el que participaron 12 enfermeros y ocho técnicos de enfermería de un hospital público en Brasil, realizado entre diciembre de 2020 y febrero de 2021. Como criterio de inclusión estaban profesionales que brindaban asistencia a pacientes con covid-19, en unidades de emergencia, de terapia intensiva y de hospitalización y al menos un año de experiencia en la institución. El análisis de las entrevistas por el análisis de contenido y por el análisis de similitud que generó un árbol de similitud y se utilizó el método Reinert para las categorías temáticas. Resultados: la mayoría de los participantes fue mujer, con promedio de 34,15 años y experiencia de 4,85 años. De los análisis, las palabras “paciente”, “ficar” (“quedar”) y “achar” (“crer”) fueron las más frecuentes y las categorías “sentimientos de los profesionales de enfermería ante la pandemia”; “rol del enfermero y trabajo con el equipo multiprofesional en los cuidados al paciente con covid-19”; “cuidados en la atención al paciente con covid-19” y “preocupación de los profesionales de enfermería de que sus familiares se enfermaran durante la pandemia”. Conclusiones: la enfermería es predominantemente constituida por mujeres y, en sus relatos sobre la experiencia y vivencia de cuidar a paciente con covid-19, señalaron que la preocupación y el miedo fueron predominantes, siendo la familia un de los factores protectores para soportar los riesgos de trabajar en contra algo nuevo y que puede culminar con la muerte.

Abstract Objective: To analyze nursing professionals’ reports on their lived experience in the care provided to hospitalized patients with COVID-19. Materials and Methods: This is an exploratory study using a qualitative analysis, which included twelve nurses and eight nursing technicians from a public hospital in Brazil, conducted between December 2020 and February 2021. The inclusion criteria were professionals who provided care to COVID-19 patients in emergency, intensive care, and inpatient units and who had at least one year of experience in the institution. The interviews were analyzed through content and similarity analysis that generated a similarity tree; the Reinert method was used for thematic categories. Results: Most participants were female, with a mean age of 34.15 years and 4.85 years of experience. From the analysis, the words ‘patient,’ ‘to stay,’ and ‘to find’ were the most frequent, and for the categories, they were “nursing professionals’ feelings regarding the pandemic,” “the nurses’ role and work with the multi-professional team in the care provided to patients with COVID-19,” “precautions with the care provided to patients with COVID-19,” and “nursing professionals’ concern that their family members may become ill during the pandemic.” Conclusions: The nursing staff is predominantly composed of females and, in their reports on the lived experience of providing care to patients with COVID-19, they pointed out that concern and fear were prevalent, with the family being one of the protective factors to withstand the risks of working against something novel that may result in death.

Resumo Objetivo Este artigo investiga os retornos em operações de fusões e aquisições para acionistas de empresas adquirentes em períodos de crise no Brasil. Referencial teórico Nossos resultados estão relacionados à literatura anterior de Brown e Sarma (2007), Malmendier e Tate (2005) e Malmendier e Tate (2008). Nosso trabalho contribui para a pesquisa supracitada ao relacionar as características dos executivos aos retornos de F&A em tempos de crise. Metodologia Adotamos o método estudo de evento para calcular retornos anormais e usamos técnicas de Regressão Linear Múltipla e Propensity Score Matching para conectar retornos às características dos executivos e empresas. Resultados Encontramos retornos anormais médios positivos (entre 1,8% e 3,3%) para operações de F&A realizadas em períodos de recessão no Brasil. Além disso, identificamos que os retornos anormais durante períodos de crise e períodos de expansão diferem substancialmente. Por fim, mostramos que executivos com formação acadêmica em nível de pós-graduação e menos tempo na gestão da empresa estão relacionados a retornos positivos anormais durante a crise. Implicações práticas e sociais da pesquisa Este artigo avalia a existência de retornos anormais em operações de F&A considerando três momentos distintos de crise. O estudo também relaciona os retornos anormais às variáveis das empresas e às características dos executivos. Contribuições Pesquisas anteriores enfatizam o panorama das operações de aquisição, sinergias, aquisições internacionais e criação de valor. Portanto, acreditamos que nosso trabalho é pioneiro em apresentar resultados sobre retornos anormais de F&A em períodos de crise no Brasil.

Abstract Purpose This paper investigates the returns on M&A transactions for shareholders of acquiring companies in times of crisis in Brazil. Theoretical framework Our results are related to previous literature by Brown and Sarma (2007), Malmendier and Tate (2005), and Malmendier and Tate (2008). Our paper contributes to the aforementioned research by relating executives' characteristics to M&A returns in times of crisis. Design/methodology/approach We adopt the event study method to calculate abnormal returns and use multiple linear regression and propensity score matching techniques to connect returns to executive and firm variables. Findings We found positive average abnormal returns (between 1.8% and 3.3%) for M&A transactions carried out during recession periods in Brazil. In addition, we identify that abnormal returns during periods of crisis and expansion differ substantially. Finally, we show that executives with a graduate level academic background and less time in the company's management are associated with positive abnormal returns during crises. Practical & social implications of research This article assesses the existence of abnormal returns in M&A operations by considering three distinct moments of crisis. The study also links abnormal returns to company variables and executive characteristics. Originality/value Previous research emphasizes the panorama of acquisition operations, synergies, cross-border acquisitions, and value creation. Therefore, we believe that our paper is pioneering in presenting results on abnormal M&A returns during crisis periods in Brazil.

Environmental pollution from plastics and microplastics is currently one of the most relevant issues of the scientific community and cosmetic industry. In particular, microplastics are referred to as small pieces of plastic less than five millimeters (<5mm) and do not dissolve in water, can be harmful to the ocean and aquatic life. Microplastics can be designated as i) primary - particles that are intentionally developed as micro sized plastic particles used in cosmetic formulations like microbeads, and ii) secondary microplastics - stem from all kinds of plastic material debris result of decomposition caused by UV radiation, mechanical stress (ocean waves) and wind action. This article gives an overview about plastics/microplastics, that are mainly used in personal care products and cosmetic. Moreover, we attempt to demonstrated some of the major problems that microplastics based materials can cause in the aquatic life leading to a human health concern. In this context, the interaction between microplastic-contaminants and possible effects in the environment or organisms was explore based on the literature analysis.

Resumo Os ganhos genéticos dos programas de melhoramento do eucalipto diminuíram em comparação com as décadas anteriores, enquanto a produtividade reduziu nos últimos anos. Essa queda é atribuída principalmente às mudanças climáticas, que, segundo estudos, têm limitado a produtividade e alterado a adaptação das espécies florestais. Além disso, considera-se que o solo é um dos componentes-chave da produção florestal e que atua diretamente na dinâmica da água e dos nutrientes para as árvores. Pretende-se avaliar, neste trabalho, os atributos dos solos que maximizam a produtividade da madeira para auxiliar as empresas silvicultoras na indicação de solos com melhor capacidade produtiva para produção de madeira. Assim, o objetivo do presente estudo foi avaliar a influência dos atributos do clima e do solo na produtividade da floresta de eucalipto e na resposta à seca no Brasil (tropical e subtropical) em locais com três tipos de clima: Subúmido, Úmido e Superúmido. Além disso, buscou-se calcular uma proposta de valores ótimos de atributos estáveis do solo ao longo de um ciclo/rotação da floresta para maximizar a produtividade do eucalipto. Para isso, foram instalados no Brasil 24 experimentos com 4 clones comuns em todos os experimentos para obter fortes contrastes edafoclimáticos, e, assim, medir a produtividade e a resposta à seca e descrever sua relação com os atributos dos solos. Três grupos climáticos foram avaliados: Subúmido (taxa de precipitação: evapotranspiração entre 0,5 e 1,0, Úmido (taxa de precipitação: evapotranspiração entre 1,0 e 2,5), Superúmido (taxa de precipitação: evapotranspiração entre 2,5 e 5,0). A produtividade de madeira variou entre os clones, com uma média de 1,86 sendo a faixa de variação. A interação genótipo versus ambiente (G X A) foi fortemente observada, e foi constatado que alguns clones são mais afetados pelo clima em relação a outros. Silte, CEC, MO para maximizar a produtividade da madeira foram: 54,68 %, 18,94%, 7,02%, 31,49 mmolc / dm³, 27,17 g / cm³.

Abstract The genetic gains from eucalyptus breeding programs have decreased, compared to the previous decades, while the productivity has declined in recent years. This drop is mainly attributed to climate change, which, according to studies, has limited the productivity and altered the adaptation of forest species. In addition to this, it is considered that the soil is one of the components of the forest production that acts directly on the dynamics of water and nutrients for trees, and it is intended to evaluate the attributes of soils that maximize the productivity of wood to assist forestry companies in the indication of soils with better productive capacity to produce wood. Thus, the aim of the present study was to evaluate the influence of climate and soil attributes on the productivity of the eucalyptus forest and on the response to drought in Brazil (tropical and subtropical) in places with three types of climate: sub-humid, humid and super-humid. In addition, we sought to calculate a proposal for optimal values of stable soil attributes over a forest cycle/rotation to maximize Eucalyptus productivity. To do so, 24 experiments were installed in Brazil with 4 common clones in all the experiments to obtain strong edaphoclimatic contrasts, and, thus, to measure the productivity and the response to drought and to describe its relationship with the attributes of the soils. Three climatic groups were evaluated: Sub-humid (precipitation rate: evapotranspiration between 0.5 to 1.0, Wet (precipitation rate: evapotranspiration between 1.0 to 2.5), Super-humid (precipitation rate: evapotranspiration between 2.5 to 5.0). Wood productivity varied among Eucalyptus clones, with an average of 1.86 being the variation range. The genotype versus environment interaction (G X E) was strongly noted, and it was observed that some clones are more affected by the climate in relation to others. The optimal values of Sand, Clay, Silt, CEC, O.M to maximize the wood productivity were: 54.68 %, 18.94 %, 7.02 %, 31.49 mmolc/dm³, 27.17 g/cm³.

Abstract Solar cells integrated with antennas have aroused scientific interest as an attractive energy source alternative in low power devices for IoT and Wireless Sensor Network applications. Since the space for all components in the systems is scarce, different integration ideas have been proposed in this field. However, further analysis of the performance of photovoltaic modules used as structural components of antennas is still lacking. In this context, this work experimentally extracts the necessary parameters to create an equivalent circuit model of a modified solar cell used as a radiator of a 2.4 GHz coplanar patch antenna. The obtained model is then used in the numerical characterization of the Current- Voltage (I-V) curves under temperature variations. Antenna design and performance are described, and the physical modifications of a commercial solar cell used in the prototype are presented. The I-V curves were generated for temperatures ranging from 243 to 325 K. The obtained simulation results within this temperature range showed a 150 mV shift of the optimal operation point, decreasing in approximately 20 mW the supported power with the temperature rise. A predictive methodology is introduced to estimate the possible values for the fill factor, energy conversion efficiency, and current density in a modified solar cell under temperature variations, allowing a fully operational photovoltaic antenna design.

ABSTRACT Mucormycosis is a rare, sometimes severe fungal infection that has emerged as a possible complication of COVID-19. We report a case of a non-diabetic, apparently immunocompetent patient diagnosed with rhino-orbital-cerebral mucormycosis shortly after COVID-19 treatment with dexamethasone. The patient received optimized systemic antifungal therapy and extensive surgical treatment. So far, four months after the last hospital discharge, the patient has been in good general condition. This case is a dramatic reminder that beneficial corticosteroid therapy in general inevitably carries a risk of opportunistic infection, and corticosteroid therapy for COVID-19 risks orbital-rhinocerebral mucormycosis that clinicians should watch for with vigilance.

Abstract The aim of this study was to evaluate the clinical and radiographic periodontal status of impacted permanent maxillary central incisors (Mx.1) after a long term of orthodontic traction. Methodology This split-mouth study evaluated a sample of 11 patients (five females, six males) treated with Mx.1 unilateral traction one to 28 years after the removal of orthodontic appliances. The traction Group (TG) consisted of 11 Mx.1 and the Comparison Group (CG) comprised 11 spontaneously erupted contralateral Mx.1. High-resolution CBCT exams of central incisors were performed using Accuitomo (J. Morita, Kyoto, Japan). Cross-section imagens passing through the center of maxillary central incisors were used to measure buccal and lingual alveolar bone level. Presence of fenestration, root dilacerations, root coverage, and position of the root apex were also assessed in the same images. Clinical parameters included periodontal probing depth, attachment level, gingival bleeding index, plaque index, degree of gingival recession, amount of gingival mucosa, and evaluation of interproximal papilla and black triangle. Digital model analysis included an assessment of clinical crown height and width. Intergroup comparisons were performed using paired t-, McNemar’s, and Wilcoxon tests (p<0.05). Results Compared to CG, we found a significantly thinner labial bone plate thickness in TG at the middle (p=0.000) and apical (p=0.009) root level. We also observed an apical displaced labial bone crest level in TG (p=0.000). The Traction Group showed a greater frequency of root dilacerations and gingival recessions, a decreased amount of keratinized mucosa, and a decreased clinical attachment level at the labial aspect compared to contralateral teeth. Conclusions A decreased thickness and height of labial alveolar bone and gingival recessions were found in maxillary central incisors 15 years after orthodontic traction. Though incisor traction might cause some periodontal impact, differences are acceptable under a clinical point of view considering the cost-benefit ratio.

Resumo O conceito de terroir, traduzido como “gut da terre”, tem sido debatido nas esferas da teoria da produção agrícola tradicional versus globalização da agricultura. Sem uma tradução clara, sua origem é antiga, mas consolidada na França, especificamente na viticultura e traz muitas questões quando aplicado a outras culturas. O artigo busca nas referências estrangeiras o conceito e as formas de manutenção do terroir denominado natural em contraposição do que convencionou chamar de terroir tecnológico, baseado na grande produção. Busca relacionar o terroir com o território com a categoria geográfica. Defende a pequena propriedade como exemplo para o terroir natural a partir das condicionantes físicas como solo e clima.

Abstract The concept of terroir translated as "gut da terre" has been discussed in the spheres of traditional agricultural production theory as opposed to the globalization of agriculture. Although the concept does not have a literal translation, its origin is ancient but consolidated in France, specifically in viticulture and brings many questions in an attempt to apply to other cultures. The article searches in foreign literature the concept and forms of maintenance of the terroir called natural in contraposition to the conception of what it called technological terroir, based on a large production. The article defends the small property as an example of the natural terroir from the characteristics that involve the physical conditions such as soil and climate.

Resumen El concepto de terroir, traducido como "gut da terre" ha sido debatido en las esferas de la teoría tradicional de la producción agrícola frente a la globalización de la agricultura. Sin una traducción clara, su origen es antiguo, pero consolidado en Francia, concretamente en la viticultura y trae muchas preguntas cuando se aplica a otras culturas. El artículo busca en refrences extranjeros el concepto y las formas de mantenimiento del terroir llamado natural en oposición a lo que ha convencido de llamar terroir tecnológico, basado en la gran producción. Busca relacionarse con el territorio con la categoría geográfica. Defiende la pequeña propiedad como ejemplo para el terroir natural de las condiciones físicas como el suelo y clima.