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This study aims to conduct an applied and innovative investigation to enhance the energy quality of wood residues through hydrothermal carbonization pretreatment. For this purpose, the treatment was carried out at three different temperatures: 180, 220, and 240 °C under autogenous pressure. The in natura material and the hydrochars were characterized, and thermogravimetric analyses were performed in an O2 atmosphere with heating rates of 2.5, 5, 10, and 20 °C min-1. The global activation energy for natura biomass combustion was determined to be 112.49 kJ.mol-1. On the other hand, the hydrothermal carbonization process promoted a reduction in this value for the 94.85 kJ.mol-1. The conversion function for the in natura biomass was characterized as 1 - α , order 1, while the hydrochars was 2(1-α) [-ln(1-α)] (1/2), Avrami-Erofe'ev I. Triple kinetic parameters were ascertained, and the conversion curves along with their respective derivatives were modeled, exhibiting minimal deviations between theoretical and experimental data. This facilitated the mathematical representation of the reaction processes and allowed for a comprehensive comparison of the results.

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The global concern over water pollution caused by contaminants of emerging concern has been the subject of several studies due to the complexity of treatment. Here, the synthesis of a graphene oxide-based magnetic material (GO@Fe3O4) produced according to a modified Hummers' method followed by a hydrothermal reaction was proposed; then, its application as a photocatalyst in clonazepam photo-Fenton degradation was investigated. Several characterization analyses were performed to analyze the structure, functionalization and magnetic properties of the composite. A 23 factorial design was used for the optimization procedure to investigate the effect of [H2O2], GO@Fe3O4 dose and pH on clonazepam degradation. Adsorption experiments demonstrated that GO@Fe3O4 could not adsorb clonazepam. Photo-Fenton kinetics showed that total degradation of clonazepam was achieved within 5 min, and the experimental data were better fitted to the PFO model. A comparative study of clonazepam degradation by different processes highlighted that the heterogeneous photo-Fenton process was more efficient than homogeneous processes. The radical scavenging test showed that O 2 · - was the main active free radical in the degradation reaction, followed by hydroxyl radicals (•OH) and holes (h+) in the valence layer; accordingly, a mechanism of degradation was proposed to describe the process.

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OBJECTIVES: To systematically evaluate randomised controlled trials (RCTs) on whether adjuvant application of antimicrobial photodynamic therapy (aPDT) through the technique of irradiation in the external region of the periodontal pocket with optic-fibre tip offers benefits to scaling and root planning (SRP). METHODS: Five databases were searched by two independent reviewers according to pre-specified eligibility criteria up to April 2023. No restrictions regarding date of publication, language and minimum follow-up period were imposed. The Cochrane Collaboration's Risk of Bias tool (RoB 2.0) was used for quality appraisal and Grading of Recommendations, Assessment, Development and Evaluation for assessing the certainty of evidence. RESULTS: A total of 1388 publications were identified and reviewed for eligibility. Four of them fulfilled the inclusion criteria. The sample consisted of a total of 83 patients with periodontitis. In these, 330 periodontal sites were evaluated. The clinical findings of the majority of the included studies demonstrated that patients who received the association of aPDT + RAR with the protocol evaluated here, obtained clinical results similar to patients who received only the SRP alone. In none of the evaluated RCTs, clinical advantages were observed that would categorise this aPDT protocol as superior to conventional treatment. CONCLUSION: Applying aPDT after SRP with external irradiation of the periodontal pocket does not seem to result in any clinical benefit compared to the use of SRP alone in patients with periodontitis.

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Introduction and objectives: During the COVID-19 pandemic, the follow-up of patients treated with vitamin K antagonists (VKAs) may have been affected. This study aims to compare how these patients were monitored pre- and post-COVID-19 pandemic and understand the impact of non-face-to-face appointments on their follow-up. Methods: We conducted a retrospective cohort study in a Portuguese Health Center. The study included patients treated with VKAs and followed at the Health Center for international normalized ratio (INR) monitoring between March 2019 and March 2021. Data collected: sex, age, type of VKA; INR; date of INR assessment, type of appointment (face-to-face or phone/e-mail). Rosendaal's method was used to calculate pre-COVID-19 and post-COVID-19 time in therapeutic range (TTR). Good TTR control was defined if values ≥ 70%. Results: 44 patients were included. The mean TTR in the pre-COVID-19 period was 64.55% (95% CI: 58.10 - 71.00%). The post-COVID-19 mean was slightly higher (+ 2.26%), 66.81% (95% CI: 59.66 - 73.97%), but the difference was not statistically significant (p = 0.576). The use of non-face-to-face appointments did not contribute to worsening post-pandemic TTR, show-ing no lower follow-up than during pre-pandemic period in which all contacts were face-to-face [CI (95%) -0.397 - 0.196 for a reference range -0.489 - 0.693]. Conclusions: The TTR value in both periods was similar and lower than the value defined for effective hypocoagulation. The use of non-face-to-face consultation in the post-COVID-19 period does not seem to have influenced the quality of hypocoagulation (AU).

Introdução e objetivos: Durante a pandemia COVID-19 o acompanhamento de doentes medicados com antagonistas da vitamina K (AVKs) pode ter sido afetado. Este estudo pretende comparar a forma como estes doentes foram monitorizados antes e depois da pandemia COVID-19 e compreender o impacto da consulta não presencial no seu seguimento. Métodos: Estudo de coorte retrospetivo num Centro de Saúde em Portugal. O estudo incluiu doentes tratados com AVKs e seguidos no Centro de Saúde para monitorização do International Normalized Ratio(INR) entre março de 2019 e março de 2021. Dados recolhidos: sexo, idade, tipo de AVK; INR; data da avaliação do INR, tipo de consulta (presencial ou por telefone/e-mail). Foi utilizado o método de interpolação linear de Rosendaal para calcular o tempo em intervalo terapêutico (TTR) pré- e pós-COVID-19. Foi definido um bom controle se valores de TTR ≥ 70%. Resultados: Foram incluídos 44 doentes. A média de TTR no período pré-COVID-19 foi de 64,55% (95% IC: 58,10 - 71,00%). A média pós-COVID-19 foi ligeiramente superior (+ 2,26%), 66,81% (95% IC: 59,66 - 73,97%), mas a diferença não foi estatisticamente significativa (p = 0,576). A utilização da consulta não presencial não contribuiu para o agravamento do TTR no período pós-pandemia, não mostrando um seguimento inferior ao do período pré-pandemia em que todos os contatos foram presenciais [IC (95%) -0,397 - 0,196 para um intervalo de referência -0,489 - 0,693]. Conclusões: O valor de TTR em ambos os períodos foi semelhante e inferior ao valor definido para hipocoagulação eficaz. A utilização da consulta não presencial no período pós-COVID-19 não parece ter influenciado a qualidade da hipocoagulação (AU).

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Lung cancer is a highly aggressive neoplasm and, despite the development of recent therapies, tumor progression and recurrence following the initial response remains unsolved. Several questions remain unanswered about non-small cell lung cancer (NSCLC): (1) Which patients will actually benefit from therapy? (2) What are the predictive factors of response to MAbs and TKIs? (3) What are the best combination strategies with conventional treatments or new antineoplastic drugs? To answer these questions, an integrative literature review was carried out, searching articles in PUBMED, NCBI-PMC, Google Academic, and others. Here, we will examine the molecular genetics of lung cancer, emphasizing NSCLC, and delineate the primary categories of inhibitors based on their molecular targets, alongside the main treatment alternatives depending on the type of acquired resistance. We highlighted new therapies based on epigenetic information and a single-cell approach as a potential source of new biomarkers. The current and future of NSCLC management hinges upon genotyping correct prognostic markers, as well as on the evolution of precision medicine, which guarantees a tailored drug combination with precise targeting.

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This study aimed to evaluate the influence of the addition of the cationic surfactant cetyltrimethylammonium bromide (CTAB) in microfibrillated cellulose (MFC/CNFs) suspensions submitted to different pretreatments to produce redispersible spray-dried (SD) MFC/CNFs. Suspensions pretreated with 5 % and 10 % sodium silicate and oxidized with 2,2,6,6,-tetramethylpiperidinyl-1-oxyl (TEMPO) were modified with CTAB surfactant and subsequently dried by SD. The SD-MFC/CNFs aggregates were redispersed by ultrasound to produce cellulosic films by the casting method. In summary, the results demonstrated that the addition of CTAB surfactant to the TEMPO-oxidized suspension was critical to achieving the most effective redispersion. The experimental results obtained using micrographs, optical (UV-Vis), mechanical, water vapor barrier properties, and the quality index confirmed that the addition of CTAB to the TEMPO-oxidized suspension favored the redispersion of spray-dried aggregates, development of cellulosic films with attractive properties, offering possibilities for the elaboration of new products, for example, in the production of bionanocomposites with higher mechanical performance. This research brings interesting insights into the redispersion and application of SD-MFC/CNFs aggregates, strengthening the commercialization of MFC/CNFs for industrial use.

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The performance of an electrochemically assisted anoxic-oxic membrane bioreactor (A/O-eMBR) was assessed as an alternative for azo dye (Remazol Brilhant Violet (RBV)) removal from simulated textile wastewater. The A/O-eMBR was operated under three experimental conditions (runs I, II, and III), in which different solids retention time (SRT) (45 and 20 d) and exposure mode to electric current (6'ON/30'OFF and 6'ON/12'OFF) were assessed. The reactor exhibited excellent decolorization performance for all runs, with average dye removal efficiency ranging from 94.3 to 98.2%. Activity batch assays showed that the dye removal rate (DRR) decreased from 16.8 to 10.2 mg RBV L-1 h-1 when the SRT was reduced from 45 to 20 d, likely attributed to the lower biomass content under lower sludge age. At the electric current exposure mode of 6' ON/12'OFF, a more substantial decrease of DRR to 1.5 mg RBV L-1 h-1 was noticed, suggesting a possible inhibitory effect on dye removal via biodegradation. By reducing the SRT to 20 d, a worse mixed liquor filterability condition was observed, with a membrane fouling rate (MFR) of 0.979 kPa d-1. In contrast, using the electric current exposure mode of 6'ON/12'OFF resulted in lower membrane fouling propensity, with an MFR of 0.333 kPa d-1. A more attractive cost-benefit ratio for dye removal was obtained using the exposure mode of 6'ON/30'OFF, for which the energy demand was estimated at 21.9-22.6 kWh kg dye-1 removed, almost two times lower than that observed for the mode of 6'ON/12'OFF.

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Este trabalho tem o objetivo de relatar a experiência de imersão na especialização com caráter de residência integrada com ênfase em Saúde Coletiva. Trata- se de um estudo descritivo, qualitativo, utilizando-se como referencial teórico para descrição a observação participante, memória afetiva, diário de bordo e da textualização. Foi desenvolvido na Residência Integrada em Saúde, da Escola de Saúde Pública do Estado do Ceará, ênfase em Saúde Coletiva, no período de dois anos, em Fortaleza, Ceará. Os cenários de prática foram setores relacionados à Atenção Primária à Saúde, Vigilância Epidemiológica, Sanitária e Ambiental, Controle de Endemias e Zoonoses, Imunização, além dos espaços de gestão, assistência e controle social. A imersão na especialização em caráter de residência viabilizou ferramentas para a vivência, por meio da interprofissionalidade e integração contínuas, e da realização das atividades, circulação de informações, compreensão das experiências, entendimento de macroprocessos, políticas e indicadores. Rodas de Campo e de Equipe viabilizaram o aprofundamento das temáticas administrativa, formativa, teórica e terapêutica. Percebeu-se resistência e desejo de remodelações, mediante inovação e diálogo intersetorial. A relação entre as categorias profissionais e ser sanitarista foi desafiadora. Oportunizou-se, também, habilidades de gestão, autonomia e governança, com pluralidade formativa e riqueza de atuação. A vivência favoreceu a percepção do programa de residência como processo formativo plural e significativo. O elemento político se destacou como base para a formação dos residentes e fortalecimento do sistema de saúde, e a residência integrada em saúde, como modalidade diferenciada de formação, com desafios e potencialidades.

The object of this study was to report the experience of immersion in the specialization as an integrated residency with emphasis on Public Health. A descriptive, qualitative study, of the experience report type, using participant observation, affective memory, logbook and textualization as theoretical references for description. It was developed in the Integrated Residency in Health, of the School of Public Health. emphasis on Public Health, during two years, in Fortaleza, Ceará, Brazil. The practice scenarios were sectors related to Primary Health Care, Epidemiological, Sanitary and Environmental Surveillance, Endemic and Zoonosis Control, Immunization, in addition to management, assistance and social control spaces. The immersion in the specialization in a residency character has enabled tools for the experience, through continuous interprofessionalism and integration, and the realization of activities, circulation of information, understanding of experiences, understanding of macro processes, policies and indicators. Field and team meetings made it possible to deepen the administrative, formative, theoretical, and therapeutic themes. Resistance and a desire for remodeling was perceived, through innovation and intersectoral dialogue. The relationship between the professional categories and being a sanitarian was challenging. It also provided opportunities for management skills, autonomy, and governance, with formative plurality and richness of action. The experience favored the perception of the residency program as a plural and significant formative process. The political element stood out as the basis for training residents and strengthening the health system, and the integrated health residency as a differentiated training modality, with challenges and potentialities.

El objeto de este estudio fue relatar la experiencia de inmersión en la especialización como residencia integrada con énfasis en Salud Pública. Estudio descriptivo, cualitativo, del tipo relato de experiencias, utilizando la observación participante, la memoria afectiva, la bitácora y la textualización como referentes teóricos para la descripción. Se desarrolló en la Residencia Integrada en Salud, de la Escuela de Salud Pública. énfasis en Salud Pública, durante dos años, en Fortaleza, Ceará, Brasil. Los escenarios de la práctica fueron sectores relacionados con la Atención Primaria de Salud, Vigilancia Epidemiológica, Sanitaria y Ambiental, Control de Endemias y Zoonosis, Inmunización, además de espacios de gestión, asistencia y control social. La inmersión en la especialización en carácter de residencia ha posibilitado herramientas para la experiencia, a través de la continua interprofesionalidad e integración, y la realización de actividades, circulación de información, comprensión de experiencias, entendimiento de macro procesos, políticas e indicadores. Reuniones de campo y de equipo posibilitaron la profundización de los temas administrativos, formativos, teóricos y terapéuticos. Se percibieron resistencias y deseos de remodelación, a través de la innovación y el diálogo intersectorial. La relación entre las categorías profesionales y el ser sanitario fue desafiante. También proporcionó oportunidades para la capacidad de gestión, autonomía y gobernanza, con pluralidad formativa y riqueza de acción. La experiencia favoreció la percepción del programa de residencia como un proceso formativo plural y significativo. Se destacó el elemento político como base para la formación de residentes y fortalecimiento del sistema de salud, y la residencia integrada en salud como modalidad formativa diferenciada, con desafíos y potencialidades.

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Objetivo: Analisar a produção científica acerca das estratégias educativas, baseadas em evidências, utilizadas no processo de ensino aprendizagem em enfermagem à luz da abordagem da aprendizagem significativa. Método: Revisão integrativa desenvolvida de acordo com as etapas: identificação do tema e seleção da hipótese de pesquisa; estabelecimento dos critérios de elegibilidade; identificação dos estudos nas bases científicas/categorização dos estudos; avaliação dos estudos selecionados; análise crítica e interpretação dos resultados; apresentação dos dados na estrutura da revisão integrativa. Resultados: Diferentes estratégias educativas baseadas na aprendizagem significativa foram identificadas tais como: mapa conceitual, estudo de caso, uso de simulador, cursos on-line e jogos. Como principais resultados das intervenções, observou-se a promoção da aprendizagem significativa e o desenvolvimento do raciocínio reflexivo e crítico em estudantes e profissionais de enfermagem, atuando como sujeitos de sua própria práxis. Conclusão: A aprendizagem significativa é uma linha pedagógica fundamental, devendo ser inserida no processo de educação em diversas áreas do saber. Dessa maneira, foi possível identificar que a mesma ancorou estratégias de ensino que se mostraram eficazes, com destaque para o uso de mapas conceituais e as tecnologias educacionais digitais.

Objective: To analyze the scientific production about educational strategies, based on evidence, used in the teaching-learning process in nursing in the light of the meaningful learning approach. Method: Integrative review developed according to the steps: identification of the theme and selection of the research hypothesis; establishment of eligibility criteria; identification of studies in scientific bases/categorization of studies; evaluation of selected studies; critical analysis and interpretation of results; presentation of data in the framework of the integrative review. Results: Different educational strategies based on meaningful learning were identified, such as: conceptual map, case study, use of simulator, online courses and games. As main results of the interventions, it was observed the promotion of meaningful learning and the development of reflective and critical reasoning in students and nursing professionals, acting as subjects of their own praxis. Conclusion: Meaningful learning is a fundamental pedagogical line and should be inserted in the education process in several areas of knowledge. In this way, it was possible to identify that it anchored teaching strategies that proved to be effective, with emphasis on the use of concept maps and digital educational technologies.

Objetivo: Analizar la producción científica sobre estrategias educativas basadas en la evidencia utilizadas en el proceso de enseñanza-aprendizaje en enfermería a la luz del enfoque del aprendizaje significativo. Método: Revisión integrativa desarrollada de acuerdo con los siguientes pasos: identificación del tema y selección de la hipótesis de investigación; establecimiento de criterios de elegibilidad; identificación de estudios en bases de datos científicas/categorización de estudios; evaluación de los estudios seleccionados; análisis crítico e interpretación de los resultados; presentación de los datos en la estructura de revisión integrativa. Resultados: Se identificaron distintas estrategias educativas basadas en el aprendizaje significativo como: mapa conceptual, estudio de casos, uso de simulador, cursos online y juegos. Los principales resultados de las intervenciones fueron la promoción del aprendizaje significativo y el desarrollo del pensamiento reflexivo y crítico en estudiantes y profesionales de enfermería, actuando como sujetos de su propia praxis. Conclusión: El aprendizaje significativo es una línea pedagógica fundamental y debe insertarse en el proceso educativo en diversas áreas del conocimiento. Así, fue posible identificar que ancló estrategias de enseñanza que se mostraron eficaces, con énfasis en el uso de mapas conceptuales y tecnologías educativas digitales.

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This study aims to enhance the energy use of two products of industry - Queen Palm residue and kraft lignin (KF) - through the combination of two technologies - briquetting and slow pyrolysis. The addition of 20% KF provided briquettes with higher physical, energy, and mechanical properties. The yields of the pyrolysis products were affected by both the pyrolysis temperature and the addition of KF. In the bio-oil, the presence of phenols, methyl phenols, and methoxy phenols was highlighted; these compounds were present in greater quantities in the treatments with KF. It is concluded that combining the briquetting and pyrolysis processes produces both energy and economic benefits because it is possible to transport lighter loads with the same amount of energy per volume. Under the briquetting conditions adopted in this study, the addition of KF as a binder is necessary because this results in briquettes with better physical, energy and mechanical properties.

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Scaling and root planing is the gold standard procedure in the periodontal disease treatment. Although this therapy has the ability to reduce or eliminate periodontopathogens mthrough periodontal instrumentation, sometimes the response to treatment may not promote the complete eradication of pathogens, affecting the healing process and leading to the presence of residual periodontal pockets. The aim of this study was to analyze the effectiveness of photodinamic therapy with laser photobiomodulation and as an adjunct to scaling and root planing (having as a conductive agent a fiber optic tip radiating inside the periodontal pocket), compared to scaling and root planing alone in patients with periodontitis on randomized trials. This systematic review was carried out complying with the recommendations of the Preferred Reporting Items for Systematic Reviews and Meta Analyses. The databases used were Pubmed, Lilacs, Biblioteca Virtual em Saúde - Odontologia and Medline. "Periodontal Disease" OR "Periodontal Treatment" AND m"Photodinamic Theraphy" were the descriptors used. A total of five articles were included. Two studies have shown superior results in relation to the referred association; a study indicated benefits in biochemical and/or microbiological aspects; it suggests, however, that clinical relevance needs to be better evaluated; two studies did not reveal benefits that categorize photodynamic therapy + scaling and root planning as superior to conventional treatment. The association in question, when well standardized and performed, can result in promising responses in the control of periodontal disease; however, the clinical benefits that demonstrate its superiority will certainly be subject to new researches. (AU)

A raspagem e alisamento radicular é o procedimento padrão-ouro no tratamento da doença periodontal. Embora essa terapia seja capaz de reduzir ou eliminar os periodontopatógenos por meio da instrumentação periodontal, algumas vezes a resposta ao tratamento pode não promover completa erradicação dos patógenos, afetando assim, o processo de cicatrização e levando à presença de bolsas periodontais residuais. O objetivo do presente estudo foi analisar a eficácia da terapia fotodinâmica com fotobiomodulação laser adjuvante a raspagem e alisamento radicular (tendo como agente condutor uma ponta de fibra óptica que irradia o interior da bolsa periodontal), em comparação com a raspagem e alisamento radicular isoladamente em pacientes com periodontite, avaliados em estudos clínicos randomizados. Esta revisão sistemática foi realizada de acordo com as recomendações Principais Itens para Relatar Revisões sistemáticas e Meta-análises. As bases de dados utilizadas foram Pubmed, Lilacs, Biblioteca Virtual em Saúde - Odontologia e Medline. "Doença periodontal" OR "Tratamento periodontal" AND "Terapia fotodinâmica" foram os descritores utilizados. Um total de cinco artigos foram incluídos. Dois estudos mostraram resultados superiores em relação à referida associação; um estudo indicou benefícios nos aspectos bioquímicos e/ou microbiológicos; sugere, no entanto, que a relevância clínica precisa ser melhor avaliada; dois estudos não revelaram benefícios que categorizassem a terapia fotodinâmica + raspagem e alisamento radicular como superiores ao tratamento convencional. A associação em questão, quando bem padronizada e realizada, pode resultar em respostas promissoras no controle da doença periodontal; entretanto, os benefícios clínicos que demonstram sua superioridade certamente serão alvo de novas pesquisas. (AU)

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Agro-industries, leveraged by the high demand of acai products, promote environmental impact through the generation of wastes in several locals in Amazon. The use with bioenergetic purposes has capacity to mitigate these scenario. Thus, the aim of the study was to characterize the biomass of acai seeds and establish the technical parameters of temperature and pressure of work to the production of briquettes of physical, mechanical and thermal quality. Temperatures of 120, 140 and 160 °C; and pressures of 15, 20 and 25 MPa were studied. We analyzed the briquettes mechanical compressive strength, rate of water absorption, rate of volumetric expansion and energy and apparent density. To the characterization of in natura seeds, the proximate analysis, chemical composition (extractives, holocellulose and lignin contents), higher, lower and useful heating value were determined. The proximate analysis indicated biomass thermal resistance, potential to direct burning and conversion by thermochemical processes. The lignin content may increase briquettes compressive strength produced in high temperatures. It was observed that the temperature had more influence in the evaluated briquettes characteristics than the pressure. The compressive strength was greater in 160 °C and 15 MPa briquettes, indicating that the lignin works as binder in this temperature, however, with pressure improvement the resistance is not favored due to the limit of resistance to compaction. The rate of water absorption decreased with the pressure increase and the temperature statistically affected in 140 °C briquettes. We observed volumetric expansion values in consonance to other found in dense biofuels of the literature. Further, the apparent density and energy density were favored by pressure improvement and the temperature helped in the increase of the apparent density. Moreover, the produced briquettes presented gain in the apparent density regarding the in natura biomass and had energy density comparable to coal and adequate to co-firing in boilers.

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ABSTRACT Wound healing consists of the coordinated cascade of molecular, cellular and biochemical events that interact for tissue recomposition to occur. The interruption or failure in this process can trigger the delay in closing the lesion and chronic wounds, in addition to infections. Ozonotherapy proves to be a promising alternative, capable of assisting in the tissue healing process, modulating the inflammatory response and preventing the development of infection. To present, analyze and discuss, through a literature review, the use of Ozonated Oils in the repair of the human body and oral cavity systems. SciELO, LILACS, MEDLINE and PubMed databases were consulted, using the following DeCS / MeSH descriptors: "ozonized oil"; "healing"; "ozone therapy". After crossing, counting and analyzing, 13 studies were selected, according to the theme. Due to the complementary theoretical foundation, 44 articles were included, totaling 57 articles used for the present review. Ozonized Oil therapy has beneficial clinical effects, which include antimicrobial, immunostimulating, analgesic, antipoxic, immunoregulatory and antioxidant action. Topical management of ozone has proven effective for the treatment of foot-and-mouth disease, gingivitis, ulcers and dermatitis, contributing to pain relief and healing. Infectious skin diseases, abscesses, allergic skin diseases, scaly erythema, psoriasis and palmoplantar pustulosis are pathological conditions, the treatment of which benefits from the application of Ozonized Oils. Ozonized Oils have been shown to be effective in the treatment of local infections, when in appropriate formulations and in controlled cases, being a promising therapeutic alternative for tissue repair.

RESUMO A cicatrização de feridas consiste na coordenada cascata de eventos moleculares, celulares e bioquímicos que interagem para que ocorra a recomposição tecidual. A interrupção ou falha nesse processo, pode desencadear o atraso no fechamento da lesão e feridas crônicas, além de infecções. A Ozonioterapia revela-se uma alternativa promissora, capaz de auxiliar no processo de cicatrização tecidual, modular a resposta inflamatória e prevenir o desenvolvimento de infecção. Apresentar, analisar e discutir, através de uma revisão da literatura, o emprego de Óleos Ozonizados no reparo dos sistemas do corpo humano e cavidade oral. Bases de dados SciELO, LILACS, MedLine e PubMed foram consultadas, utilizando os seguintes descritores DeCS/MeSH: "ozonized oil"; "healing"; "ozone therapy". Após cruzamento, apuração e análise, foram selecionados 13 estudos, de acordo com a temática. Devido à fundamentação teórica complementar, 44 artigos foram incluídos, totalizando 57 artigos utilizados para a presente revisão. A terapia com Óleo Ozonizado possui efeitos clínicos benéficos, que incluem ação antimicrobiana, imunoestimulante, analgésica, antipóxica, imunorreguladora e antioxidante. O manejo tópico de ozônio revelou-se eficaz para o tratamento de estomatite aftosa, gengivite, úlceras e dermatite, contribuindo para o alívio da dor e cicatrização. Doenças infecciosas da pele, abscessos, doenças alérgicas da pele, eritema escamoso, psoríase e pustulose palmoplantar são condições patológicas, cujo tratamento é beneficiado pela aplicação de Óleos Ozonizados. Os Óleos Ozonizados têm demonstrado eficácia no tratamento de infecções locais, quando em formulações apropriadas e em casos controlados, sendo uma alternativa terapêutica promissora para o reparo de tecidos.

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Plumieride (PLU), an iridoid isolated from Allamanda cathartica flowers, has been studied by our research group due to its anti-inflammatory potential, antidepressant-like and anxiolytic-like effects. This research investigated the involvement of GABAergic and monoaminergic systems in the anxiolytic-like effect elicited by PLU. Therefore, mice were pre-treated with GABAergic, serotonergic, adrenergic or dopaminergic receptor antagonists (i.p.), and exposed to Elevated Plus-Maze (EPM) and Open-Field Test (OFT). The preliminary results revealed that PLU (p.o.) possibly interacts with the mentioned systems through the GABAA, GABAB, 5-HT1A, 5-HT3, α1, α2, and D2 receptors.

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Multilayer graphene oxide (mGO) was synthesized and functionalized via co-precipitation method to produce magnetic Fe3O4-functionalized multilayer graphene oxide nanocomposite (MmGO). Photocatalytic properties of MmGO were investigated in the photodegradation of raw textile wastewater samples. Fourier-transformed infrared spectroscopy revealed Fe-O vibrations, characterized by the band shift from 636.27 to 587.25 cm-1 on MmGO. X-ray diffraction confirmed the successful oxidation of graphite by the (002) peak at 10° and indicated the presence of Fe3O4 on MmGO surface by the peaks at 2θ 35.8° (311), 42.71° (400), 54.09° (511), and 62.8° (440). There was no detection of coercivity field and remnant magnetization, evidencing a material with superparamagnetic properties. Then, the textile effluent was treated by heterogeneous photo-Fenton (HPF) reaction. A 22 factorial design was conducted to evaluate the effects of MmGO dosage and H2O2 concentration on HPF, with color and turbidity removal as response variables. The kinetic behavior of the adsorption and HPF processes was investigated separately, in which, the equilibrium was reached within 60 and 120 min, for adsorption and HPF, respectively. Pseudo-second-order model exhibited the best fit, with COD uptake capacity at equilibrium of 4094.94 mg g-1, for chemical oxygen demand. The modeling of kinetics data showed that the Chan and Chu model was the most representative for HPF, with initial removal rate of 95.52 min-1. The removal of organic matter was 76.36% greater than that reached by conventional treatment at textile mills. The presence of Fe3O4 nanoparticles attached to MmGO surface was responsible for the increase of electron mobility and the enhancement of its photocatalytic properties. Finally, MmGO presented low phytotoxic to Cucumis sativus L. with a RGI of 0.53. These results bring satisfactory perspectives regarding further employment, on large scale, of MmGO as nanocatalyst of textile pollutants.

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Briquetting is a technology with the potential to convert agricultural wastes into solid biofuels with improved handling, transport, storage, and energy efficiency characteristics. It is important to study the variables related to the briquetting process and the raw material because these parameters can affect the quality of the final product. Thus, the objective of this study was to investigate the influence of particle size on the physico-mechanical and energy properties of briquettes produced with coffee husks. Three particle size fractions were obtained: particles larger than 1.8 mm, in the range of 1.8-1.2 mm, and smaller than 1.2 mm. The coffee husk briquettes were prepared in a densification system at 120 °C and 15 MPa for 15 min. The physical, mechanical, and energy characteristics such as apparent density, volumetric expansion, compressive strength, abrasion resistance, and energy density were determined. A combustibility test was also carried out. The results showed that particle size influenced the apparent density, compressive strength, and energy density of the briquettes. However, there was no significant difference in the volumetric expansion or abrasion resistance of the densified products among the treatments. In general, the briquettes made with particles smaller than 1.2 mm had better physico-mechanical and energy characteristics.

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Sodium percarbonate (SPC, 2Na2CO3∙3H2O2), is a compound that can be used under multiple environmental applications. In this work, SPC was employed as oxidant in the treatment of soil contaminated with diesel oil. The soil samples were collected during the earthmoving stage of RNEST Oil Refinery (Petrobras), Brazil. Then, the samples were air-dried, mixed and characterized. Subsequently, raw soil was contaminated with diesel and treated by photo-Fenton reaction (H2O2/Fe2+/UV). SPC played a significant role in the generation of hydroxyl radicals under the catalytic effect of ferrous ions (Fe2+), hydrogen peroxide (H2O2) and radiation. These radicals provoked the photodegradation of polycyclic aromatic hydrocarbons (PAHs), in the soil remediation. A factorial design 33 was carried out to assess the variables which most influenced the decrease in total organic carbon (TOC). The study was performed with the following variables: initial concentration of [H2O2] and [Fe2+], between 190.0 and 950.0 mmol L-1 and 0.0-14.4 mmol L-1, respectively. UV radiation was supplied from sunlight, blacklight lamps, and system without radiation. All experiments were performed with 5.0 g of contaminated soil in 50.0 mL of solution. The initial concentration of Fe2+ showed the statistically most significant effect. The oxidation efficiency evaluated in the best condition showed a decrease from 34,765 mg kg-1 to 15,801 mg kg-1 in TOC and from 85.750 mg kg-1 to 20.770 mg kg-1 in PAHs content. Moreover, the sums of low and high molecular weight polycyclic aromatic hydrocarbons (LMW-PAHs and HMW-PAHs) were 19.537 mg kg-1 and 1.233 mg kg-1, respectively. Both values are within the limits recommended by the United Sates Environmental Protection Agency (USEPA) and evidenced the satisfactory removal of PAHs from contaminated soil, being an alternative to classic oxidation protocols.

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Amino-functionalized multilayer graphene oxide (Am-nGO) has been synthesized and applied to remove the reactive drimaren red (DR) from aqueous solutions. Infrared spectroscopy evidenced amine and amide presence by peaks at 1579 cm-1 and a band between 3300 and 3500 cm-1. Raman spectroscopy showed an increment in ID/IG ratio after amino-Fe3O4-functionalization of nGO from 1.05 to 1.20, referent to an increase in sp3 domain disorder. The isoelectric point of Am-nGO was pH 8.1. From kinetic study, the equilibrium was achieved within 90 min; moreover, pseudo-n-order model satisfactorily fitted to the experimental data. Kinetic constant (kn) was 0.71 mg1-n g1-n min-1 and modeled equilibrium sorption capacity (qe) 219.17 mg g-1. Equilibrium experiments showed monolayer adsorption capacity (qm) of 219.75 mg g-1, and BET model best fitted to the equilibrium data, indicating that the adsorption process happened with multiple layers formation. From sorption thermodynamics, the standard free energy of Gibbs and enthalpy were respectively - 31.91 kJ mol-1 (at 298 K) and 66.43 kJ mol-1. Such data evidence the spontaneous and chemical behavior of DR adsorption as a consequence of strong electron donor-receptor interactions between the dye and the nanosorbent. By phytotoxicity assessment, Am-nGO showed inexpressive inhibitory potential to American lettuce seeds in comparison with its precursor nGO and graphite nanoplatelets.

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Nowadays, an important economic movement is involved in the improvement of polyethylene trays for the production of seedlings, being developed with different volumes, numbers and cell formats in an each culture-specific manner. The objective of the present study was to evaluate the performance of curly lettuce originated from seedlings from trays with different volumes, through the comparison between conventional and hydroponic-NFT cultivation. Five volumes of trays (10, 20, 30, 40 and 50 cm³ of cell-1) were tested in conventional and hydroponic cultivation, from February to March 2016. For the purpose of comparison, the plants were evaluated through the characteristics of height, circumference, stem diameter, number of leaves, fresh shoot mass and productivity. The use of volumes greater than 10 cm³ showed higher precocity in both cultivation systems, with hydroponic cultivation being more precocious and productive when compared to conventional cultivation.(AU)

Atualmente, um importante movimento econômico está envolvido na aprimoração das bandejas de polietileno para a produção de mudas, sendo desenvolvido com diferentes volumes, números e formatos de células de forma específica para cada cultura. O objetivo do presente estudo foi avaliar o desempenho de alface crespa, oriunda de mudas de bandejas com diferentes volumes, através da comparação entre cultivo convencional e hidropônico-NFT. Cinco volumes de bandejas (10, 20, 30, 40 e 50 cm³ de célula-1) foram testados em cultivo convencional e hidropônico, no período de fevereiro a março de 2016. Para fins de comparação, as plantas foram avaliadas através das características de altura, circunferência, diâmetro do caule, número de folhas, massa fresca da parte aérea e produtividade. O uso de volumes superiores a 10 cm³ apresentou maior precocidade em ambos os sistemas de cultivo, sendo o cultivo hidropônico mais precoce e produtivo quando comparado ao cultivo convencional.(AU)

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