Scientific Electronic Archives
type: channel
description: Scientific Electronic Archives, ISSN 2316-9281 e D.O.I 10.36560, é um periódico científico bimensal de acesso gratuito, que publica artigos inéditos ou revisões com relevância científica significativa. O periódico aceita submissões em português, e preferencialmente, em inglês. O processo de submissão e análise são contínuos e o periódico recebe manuscritos nas áreas de Ciências Agrárias, Ciências Biológicas, Educação e Ensino, Ciências da Sa´úde, Ciências Exatas e Engenharias e Ciências Humanas e Sociais. Este periódico é cadastrado na Associação Brasileira de Editores Científicos – ABEC e recebeu a o selo de qualidade "Provedor de Dados Ativos do Ano 2025" da FAO. No período 2021-2024 do Webqualis da CAPES somos classificados como B1 em diversas áreas do conhecimento A Scientific Electronic Archives possui o compromisso de hospedar contribuições de membros da United Nations Academic Impact (UNAI) sob a forma de edições especiais.
publisher: Editora Independente
language: pt-BR
publication name: Scientific Electronic Archives
issn: 2316-9281
copyright: A revista se reserva o direito de fazer alterações nas regras originais, na ortografia e na ordem gramatical, a fim de manter o idioma de culto padrão, respeitando, no entanto, o estilo dos autores. Os artigos publicados são de propriedade da revista Scientific Electronic Archives, tornando-se sua reimpressão total ou parcial, sujeitos à autorização expressa da direção da revista. A fonte original da publicação deve ser mantida. Os originais não serão devolvidos aos autores. As opiniões expressas pelos autores dos artigos são de sua exclusiva responsabilidade. The journal reserves the right to make changes to the original rules, spelling and grammatical order, in order to keep the language of worship default, respecting, however, the style of the authors. Articles published are the property of Scientific Electronic Archives magazine, becoming its total or partial reprint, subject to the express authorization of the direction of the journal. The original source of publication should be retained. The originals will not be returned to the authors. Opinions expressed by authors of articles are solely your responsibility. This journal uses the License Creative Commons Atribuição 4.0 Internacional.
items: Avaliação de diferentes doses de acepromazina em cães submetidos a ultrassonografia para avaliação esplênica
items: Teratozoospermia in tropical stallions: integrating morphology, heat stress and molecular alterations
items: Urospermia in cattle: effects on seminal quality and fertility
items: Tendência da mortalidade por câncer de colo do útero no Brasil, 2003-2022: estudo descritivo e análise de série temporal
items: Efeitos do uso de subdoses de dexmedetomidina por via intravenosa ou no acuponto Yin Tang sobre as doses de propofol para sedação de desobstrução uretral em felinos
items: Development and evaluation of a topical formulation containing munguba butter and bacaba peel extract
items: Efficacy of natural medicines in combating vaginal candidiasis: A review of the use of herbal remedies in women’s intimate health
items: Relação da infecção por citomegalovírus, alteração de pressão arterial, e marcadores oxidativos em adolescentes
items: Effects of caffeine on individuals with anxiety disorders: an integrative review
items: Extraction and purification of major phytocannabinoids (Δ⁹-THC and CBD) in Cannabis sativa grown in northeastern Brazil
items: Timed artificial insemination in cattle: advances, impacts, and future perspectives
items: Use of honey as a bioindicator: an integrative review
items: Molibdênio no sistema solo-planta: dinâmica, funções fisiológicas e implicações para a nutrição de plantas
items: Influência da pressão e da velocidade de deslocamento na qualidade da pulverização e deposição de gotas em aplicações agrícolas
items: First report of multidrug-resistant Staphylococcus pseudintermedius as an agent of healthcare-associated infection in a dog in Brazil
items: Associative diazotrophic bacteria isolated from different biomes as potential plant growth promoters of common bean
items: Plant growth-promoting bacteria: Advancing sustainable agriculture in north Africa
items: Economic potential of Eucalyptus spp. plantations in Livestock–Forest Integration systems (iLF) in the Amazon
items: Silício e fósforo na qualidade e rendimento de batata-doce sob déficit hídrico no semiárido
items: https://scientificelectronicarchives.org/index.php/SEA/article/view/2198
items: Dystocia in bovine parturition: an updated literature review
items: Evaluation of the biological activity of venom extracts from the toads Rhinella marina and Rhaebo guttatus on peripheral blood monocytes from healthy human subjects
items: Oxidative stress in stingless bees exposed to pesticides and heavy metals: a systematic review
items: Atividade antibacteriana e modificação da ação antibiótica do citral frente a cepas de Acinetobacter baumannii
items: Attention-Deficit/Hyperactivity Disorder in children and adolescents: comorbidity and developmental implications
items: Prospecção do potencial inovador em ciências agrárias e da saúde: diagnóstico sistemático e governança da inovação na UFMT-Campus de Sinop
items: Asymptotic connections between Elovich, PFO and PSO adsorption kinetics in a coverage-dependent rate model

Avaliação de diferentes doses de acepromazina em cães submetidos a ultrassonografia para avaliação esplênica
type: item
description: A acepromazina é um medicamento amplamente utilizado na rotina clínica veterinária para sedação e tranquilização de animais. Além de seus efeitos sedativos também possui alguns efeitos adversos conhecidos como redução nos valores do hemograma devido a um sequestro esplênico, o que também leva a um aumento no tamanho deste órgão. Foram selecionados 20 cães saudáveis, sem predileção de raça, sexo ou idade, com pesos entre 2 kg e 30 kg, atendidos no Hospital Veterinário da Universidade Federal de Mato Grosso, Campus Cuiabá. Os animais foram divididos em dois grupos: Grupo I (GI), recebeu acepromazina na dose de 0,01 mg/kg por via intravenosa; e grupo II (GII), recebeu acepromazina na dose de 0,03 mg/kg por via intravenosa. Os animais foram submetidos a exames clínicos, hematológicos (hemograma completo) e bioquímicos (perfil hepático e renal), além de ultrassonografia abdominal para aferição das medidas do baço antes e após a administração de um dos tratamentos. Foi possível observar uma redução nas variáveis do eritrograma de 16% para a dose de 0,01 mg/kg e uma redução de 22% para a dose de 0,03 mg/kg. Adicionalmente, o baço apresentou um aumento de 7,5% em sua medida horizontal na avaliação ultrassonográfica para a dose de 0,03 mg/kg. Com isso, conclui-se que ambas as doses possuem efeitos hematológicos e ultrassonográficos, devendo ser utilizados com cautela em pacientes que serão submetidos à exames de imagem ou possuam alterações hematológicas.
creator: Guilherme Henrique Salazar Badan
creator: Bruna Louise Adona Reis Pereira
creator: Pedro Eduardo Brandini Néspoli
creator: Marcos de Almeida Souza
creator: Waldenis Pereira da Trindade Júnior
creator: Isadora Barros Mendes
creator: Andresa de Cássia Martini Mendes
creator: Lianna Ghisi Gomes
rights: Copyright (c) 2026 Scientific Electronic Archives http://creativecommons.org/licenses/by/4.0
license: http://creativecommons.org/licenses/by/4.0
date: 2026-04-13
publication date: 2026-04-13
volume: 19
number: 3
starting page: 1
ending page: 9
doi: 10.36560/19320262202

Teratozoospermia in tropical stallions: integrating morphology, heat stress and molecular alterations
type: item
description: The fertility of stallions in tropical regions is strongly influenced by semen quality, with sperm morphology being one of the main indicators of reproductive performance. Structural alterations, grouped under the term teratozoospermia, compromise fertilizing capacity and are associated with subfertility. This study aimed to conduct an integrative literature review on teratozoospermia in stallions under tropical climate conditions, gathering morphological, methodological, environmental, and molecular evidence. Studies analyzed addressed racial variations in sperm morphology, staining and evaluation methodologies, the impact of thermal stress on seminal parameters and testicular hemodynamics, as well as comparisons with human models and proteomic analyses. Results showed that different breeds present distinct proportions of normal sperm and specific defects; that methodological variability can generate divergences of up to 15% in the identification of abnormalities; and that thermal stress in tropical climates reduces motility, increases defects and DNA fragmentation, compromising fertility. Comparative evidence in humans reinforces the universality of thermal damage mechanisms, while proteomic analyses reveal alterations in acrosomal enzymes and structural proteins, broadening the understanding of subfertility.It is concluded that teratozoospermia in tropical stallions is a multifactorial phenomenon, resulting from the interaction between racial predispositions, methodological variability, environmental stress, and molecular alterations. The integration of morphological analyses, thermal comfort indices, and proteomic approaches represents a promising strategy for reproductive diagnosis and management adapted to tropical conditions.
creator: Rafaela Forte Teixeira
creator: Isabela Correa da Costa Marques
creator: Marcella Vitória Ferreira Lopes
creator: Raynara De Lima Goi
creator: Julia Mello Wesz
creator: Giovana Passos Medeiros
creator: Jessica da Silva Pereira
creator: Enzo Pugliese
creator: Ana Clara Gomes de Souza
creator: Maria Eduarda dos Santos Silva Lopes
creator: Sophia Marques Miranda
creator: Sibely Barbosa Sena
creator: Yasmim Eduarda Venturini dos Santos
creator: Júlia Silva de Oliveira
creator: Felipe Cantore Tiburcio
creator: Jorge Willian Franco de Barros
creator: Rafael Barrera Salgueiro
creator: Rodolfo Cassimiro de Araujo Berber
rights: Copyright (c) 2026 Scientific Electronic Archives http://creativecommons.org/licenses/by/4.0
license: http://creativecommons.org/licenses/by/4.0
date: 2026-05-13
publication date: 2026-05-13
volume: 19
number: 3
starting page: 1
ending page: 7
doi: 10.36560/19320262238

Urospermia in cattle: effects on seminal quality and fertility
type: item
description: Urospermia, characterized by the presence of urine in the ejaculate, is an important reproductive disorder in cattle that can compromise semen quality and significantly reduce fertility. This condition results from failures in the neurophysiological mechanisms responsible for coordinating seminal emission, ejaculation, and bladder neck closure, and may be associated with neurogenic, anatomical, pharmacological, management-related, or idiopathic factors. Urinary contamination alters the physicochemical parameters of semen, such as pH and osmolarity, and introduces toxic compounds (urea, ammonia, and creatinine), leading to reduced motility, sperm viability, and membrane and acrosome integrity. These effects make ejaculates more susceptible to damage during dilution, cooling, and cryopreservation, negatively impacting artificial insemination programs and reproductive efficiency. Although frequently described in stallions, urospermia also has relevance in modern cattle breeding, particularly in animals used for semen collection in reproductive biotechnologies. This study reviews the main pathophysiological aspects, causes, impacts on semen quality, and practical implications of urospermia in bulls, highlighting the need for accurate diagnosis and appropriate management strategies to minimize its deleterious effects on fertility.
creator: Isabela Correa da Costa Marques
creator: Marcella Vitória Ferreira Lopes
creator: Raynara De Lima Goi
creator: Julia Mello Wesz
creator: Giovana Passos Medeiros
creator: Jessica da Silva Pereira
creator: Enzo Pugliese
creator: Ana Clara Gomes de Souza
creator: Maria Eduarda dos Santos Silva Lopes
creator: Sophia Marques Miranda
creator: Sibely Barbosa Sena
creator: Yasmim Eduarda Venturini dos Santos
creator: Eloa Lima de Oliveira Portela
creator: Júlia Silva de Oliveira
creator: Rafaela Forte Teixeira
creator: Felipe Cantore Tiburcio
creator: Jorge Willian Franco de Barros
creator: Rafael Barrera Salgueiro
creator: Rodolfo Cassimiro de Araujo Berber
rights: Copyright (c) 2026 Scientific Electronic Archives http://creativecommons.org/licenses/by/4.0
license: http://creativecommons.org/licenses/by/4.0
date: 2026-05-06
publication date: 2026-05-06
volume: 19
number: 3
starting page: 1
ending page: 7
doi: 10.36560/19320262232

Tendência da mortalidade por câncer de colo do útero no Brasil, 2003-2022: estudo descritivo e análise de série temporal
type: item
description: No Brasil, ao excluir os tumores de pele não melanoma, o câncer de colo do útero se destaca como o terceiro mais comum entre as mulheres. Este estudo teve como objetivo investigar as características sociodemográficas e a tendência temporal da mortalidade por câncer de colo do útero no Brasil entre 2003-2022. Trata-se de um estudo descritivo e análise de série temporal, com dados coletados do Sistema de Informação sobre Mortalidade. Considerando a 10ª Revisão da Classificação Internacional de Doenças (CID-10) foram incluídos no estudo os óbitos cuja causa básica de morte tenha sido atribuída ao código C53 e 50% dos óbitos atribuídos ao código C55. As variáveis coletadas foram: ano do óbito, faixa etária, escolaridade, estado civil, raça/cor da pele, local de ocorrência, UF e região. A variação da taxa de mortalidade ajustada por idade foi calculada pelo Joinpoint Trend Analysis 5.3.0 e as variáveis sociodemográficas analisadas pelo teste Qui-quadrado, através do GraphPad Prism 8.0. A taxa de mortalidade foi calculada para cada 100 mil mulheres. As estimativas anuais da população feminina foram obtidas do Instituto Brasileiro de Geografia e Estatística. Foram registrados 130.521 óbitos no período analisado. O maior número de óbitos ocorreu entre mulheres acima de 64 anos (34,58%), com 1-3 anos de estudo (21,85%), solteiras (32,90%) e brancas (44,59%), sendo a maioria desses óbitos em hospitais (78,96%). No Brasil, a tendência da mortalidade apresentou variação percentual anual e variação percentual anual média de -0,64 [Intervalo de Confiança de 95% (IC95%) -0,84; -0,44; p-valor < 0,001]. A Região Norte apresentou a maior média de mortalidade (8,81/100 mil), com destaque para o Amazonas (12,59/100 mil). Em contraste, a Região Sudeste registra a menor média (5,53/100 mil), sendo Minas Gerais a menor média geral (4,80/100 mil). Embora a mortalidade por câncer cervical esteja em declínio no Brasil, persistem desigualdades significativas que exigem estratégias específicas…
creator: Izabela de Figueiredo Reis
creator: Yara de Souza Braga
creator: Gabriela Omena Silva
creator: Alexandra Secreti Prevedello
creator: Vanessa de Almeida Raia
creator: Ana Cláudia Morandi Alessio
creator: Aline Morandi Alessio
rights: Copyright (c) 2026 Scientific Electronic Archives http://creativecommons.org/licenses/by/4.0
license: http://creativecommons.org/licenses/by/4.0
date: 2026-05-08
publication date: 2026-05-08
volume: 19
number: 3
starting page: 1
ending page: 12
doi: 10.36560/19320262217

Efeitos do uso de subdoses de dexmedetomidina por via intravenosa ou no acuponto Yin Tang sobre as doses de propofol para sedação de desobstrução uretral em felinos
type: item
description: Resumo. Gatos domésticos apresentam particularidades fisiológicas e comportamentais que tornam necessária a realização de estudos mais aprofundados acerca dos fármacos empregados em protocolos de sedação e anestesia. Diante desse contexto, o presente estudo tem como objetivo avaliar o requerimento de propofol após a administração de dexmedetomidina, por via intravenosa e no ponto de acupuntura Yin Tang, em gatos submetidos à desobstrução uretral. Para isto, foram utilizados 20 felinos, machos, de peso variável, provenientes da rotina do Hospital Veterinário da Universidade Federal de Mato Grosso (HOVET – UFMT). Após diagnóstico de obstrução uretral é recomendado procedimento de sedação para desobstrução, os animais foram submetidos aleatoriamente em dois grupos, contendo 10 animais cada: o Grupo Intravenoso (IV), onde os animais receberam dexmedetomidina, na dose de 1 mcg/kg, pela via intravenosa; e no Grupo Yin Tang (YT), a mesma dose do grupo anterior, porém aplicada no subcutâneo no acuponto Yin Tang, localizado na linha média ventral entre as sobrancelhas. Como incremento da sedação, foi administrado propofol e avaliada a qualidade da indução anestésica. Posteriormente, o volume final em mililitros (mL) de propofol foi anotado para posterior avaliação e comparação entre os grupos. Como suplementação analgésica, após avaliação de sedação, foi administrado tramadol na dose de 2 mg/kg, para que pudesse ocorrer a desobstrução. Os parâmetros fisiológicos foram avaliados durante todo o procedimento, até a completa recuperação do paciente, sendo observada estabilidade dos parâmetros analisados. Foi observada diferença estatística entre os grupos IV e YT, respectivamente, 2,45 ± 1,02 e 4,41 ± 2,20, para a dose (mg/kg) do propofol, bem como no tempo de indução e qualidade de sedação. Portanto, a dexmedetomidina utilizada por via intravenosa promoveu redução da dose de propofol superior a administração no acuponto Yin Tang, no entanto ainda podemos considerar esta como um…
creator: Isadora Barros Mendes
creator: Valéria Régia Franco Sousa
creator: Marcos de Almeida Souza
creator: Guilherme Henrique Salazar Badan
creator: Andresa de Cássia Martini Mendes
creator: Lianna Ghisi Gomes
rights: Copyright (c) 2026 Scientific Electronic Archives http://creativecommons.org/licenses/by/4.0
license: http://creativecommons.org/licenses/by/4.0
date: 2026-04-13
publication date: 2026-04-13
volume: 19
number: 3
starting page: 1
ending page: 8
doi: 10.36560/19320262206

Development and evaluation of a topical formulation containing munguba butter and bacaba peel extract
type: item
description: Bacaba (Oenocarpus bacaba Mart) is an Amazonian palm tree that bears fruits with an intensely purple colored peel, indicating the presence of anthocyanins, a natural source of antioxidants. However, these peels are a by-product of bacaba processing, being discarded while their bioactive compounds could be used by the pharmaceutical, cosmetic, and food industries. In this sense, recently, there has been a growth in a consumer audience interested in cosmetic products that, in addition to quality, have components of natural origin and promote sustainability. Therefore, the objective was to develop an emulsified base formulation, oil-in-water type, incorporate the bacaba peel extract into it, and evaluate its antioxidant activity. Three topical formulations containing munguba butter as the internal phase (in percentages of 2, 3, and 5%) were developed, which were then subjected to preliminary and accelerated stability analyses. The bacaba peel extract was incorporated into the formulation with the highest stability (the one containing 2% of munguba butter), which had an anthocyanin content equal to 9.75 mgL-1 of cyanidin-3-glucoside, indicating antioxidant potential. The stability of the emulsion was maintained even after incorporation of the extract into the base formulation. The antioxidant activity of the bacaba peel extract and the extract-containing formulation was analyzed using the DPPH (2,2-DIPHENYL-1-PICRYLHYDRAZYL) radical scavenging method, obtaining EC50 values of 18.54 and 89.66 µgmL-1, and the ABTS (2,2´ -azinobis (3-ethylbenzothiazoline-6-sulfonic acid)) method, with results equal to 85.56 mM Troloxg-1 and 55.52 mM Troloxg-1, demonstrating good antioxidant activity in both assays. Therefore, a stable formulation with promising antioxidant activity was obtained, developed by the incorporation of bioactive compounds from the bacaba peel extract, presenting potential for use in the prevention and reduction of oxidative damage, in addition to reducing environ…
creator: Marina Rafaela Zabot da Guia
creator: Rafael Laurindo Morales
creator: Elton Brito Ribeiro
creator: Dênia Mendes de Sousa Valladão
creator: Maycon de Paula Ribeiro Torres
rights: Copyright (c) 2026 Scientific Electronic Archives http://creativecommons.org/licenses/by/4.0
license: http://creativecommons.org/licenses/by/4.0
date: 2026-04-13
publication date: 2026-04-13
volume: 19
number: 3
starting page: 1
ending page: 7
doi: 10.36560/19320262205

Efficacy of natural medicines in combating vaginal candidiasis: A review of the use of herbal remedies in women’s intimate health
type: item
description: Vaginal candidiasis is a common recurrent infection primarily caused by Candida albicans, leading to significant discomfort and affecting the quality of life of women of reproductive age. Due to the increasing resistance to synthetic antifungal agents and the undesirable adverse effects associated with their use, interest in natural therapeutic alternatives has grown substantially. This study aimed to identify, through an integrative literature review, the main phytotherapeutic agents evaluated for the treatment of vaginal candidiasis. The search was conducted in the SciELO, BVS, and Google Scholar databases during the second semester of 2025, using the descriptors “Vaginal Candidiasis,” “Phytotherapy,” “Herbal Medicines,” and “Phytotherapy for Candidiasis Treatment,” combined with the boolean operators AND and OR. Inclusion criteria comprised articles published between 2015 and 2025, written in Portuguese, addressing natural products against Candida albicans with methodological clarity; duplicated articles, publications in other languages, and those not aligned with the study objective were excluded. A total of 20 articles were identified, 14 were preselected, and 7 met all eligibility criteria. The phytotherapeutics with the strongest antifungal evidence were Rosemary (Rosmarinus officinalis), Brazilian Peppertree (Schinus terebinthifolia), Propolis Extract, Curcuma longa, Garlic (Allium sativum), Oregano (Origanum vulgare), Barbatimão (Stryphnodendron adstringens), Tea Tree Oil, and Copaiba Oil (Copaifera langsdorffii). Most studies demonstrated significant biofilm reduction, inhibition of fungal growth, interference with ergosterol synthesis, and good tolerability. In conclusion, phytotherapeutic agents represent promising alternatives with considerable therapeutic potential and may be used alone or as adjuvant therapy in the management of vaginal candidiasis.
creator: Eloisa Maria Pereira Neves
creator: Daiany Alves Ribeiro
creator: Dárcio Luiz de Sousa Júnior
creator: Marina Micaelle Rodrigues Siqueira
creator: Paulo Henrique Carvalho Silveira
creator: Júlio César Silva
creator: Antonio Júdson Targino Machado
creator: Amanda de Andrade Marques
creator: Jefferson David Melo de Matos
creator: Maysa de Oliveira Barbosa
creator: Raimundo Luiz Silva Pereira
rights: Copyright (c) 2026 Scientific Electronic Archives http://creativecommons.org/licenses/by/4.0
license: http://creativecommons.org/licenses/by/4.0
date: 2026-04-13
publication date: 2026-04-13
volume: 19
number: 3
starting page: 1
ending page: 5
doi: 10.36560/19320262194

Relação da infecção por citomegalovírus, alteração de pressão arterial, e marcadores oxidativos em adolescentes
type: item
description: A adolescência é um período considerado crítico para o desenvolvimento de fatores de risco para doenças cardiovasculares (DCV), devido a diversas mudanças hormonais e comportamentais que podem influenciar a saúde cardiovascular do indivíduo. Um dos principais fatores de risco para o desenvolvimento de DCV é a hipertensão arterial sistêmica (HAS), cuja prevalência pode variar de 1% a 10% nos adolescentes, dependendo da região. Esse quadro pode ser agravado quando associado a infecções virais, como a causada por citomegalovírus. Diante do exposto, nosso objetivo foi verificar a associação entre a infecção por citomegalovírus e a alteração da pressão arterial e estresse oxidativo em adolescentes. Métodos: o estudo foi desenvolvido em uma escola pública de Sinop-MT. Foram incluídos 33 adolescentes na faixa etária de 14 e 16 anos, onde foi aferido a pressão arterial, aplicado um questionário com informações de histórico de saúde e socioeconômicas e realizada a coleta de sangue. Nas amostras de sangue, foi realizado a dosagem do anticorpo IgG e IgM para CMV e a avaliação do estresse oxidativo por meio dos testes de catalase, proteínas carboniladas, GST (glutationa S-transferase) e SOD (superóxido dismutase). Os dados foram tabulados e analisados pelo programa Graph Pad Instat 8 avaliando a correlação entre CMV, pressão arterial, sobrepeso e estresse oxidativo na adolescência. Resultados: das 33 amostras analisadas 72,7% (n=24) eram do sexo feminino, 15,1% (n=5) dos adolescentes estavam com sobrepeso, e 18,1% (n=6) apresentaram alteração na pressão arterial. Em relação a dosagem de anticorpos específicos para CMV, 18,1% (n=6) tinham IgM positivo para CMV e 91% (n=30) possuem IgG positivo para CMV. Conclusões: diante desses resultados, sugerimos que os adolescentes estudados apresentaram uma alta prevalência de infecção passada por CMV, sendo que a alta concentração de anticorpos pode estar diretamente relacionada a presença do vírus, o qual contribui com a diminuição da de…
creator: Natasha dos Santos Siega
creator: Elioelsio Santos Gonçalves
creator: Isabelle Zanata Fabiane
creator: Joice Lilian Porfirio de Souza
creator: Dayane Aparecida de Souza
creator: Julio Cezar de Oliveira
creator: Valeria Dornelles Gindri Sinhorin
creator: Vanessa de Almeida Raia
creator: Gisele Facholi Bomfim
rights: Copyright (c) 2026 Scientific Electronic Archives http://creativecommons.org/licenses/by/4.0
license: http://creativecommons.org/licenses/by/4.0
date: 2026-04-13
publication date: 2026-04-13
volume: 19
number: 3
starting page: 1
ending page: 8
doi: 10.36560/19320262168

Effects of caffeine on individuals with anxiety disorders: an integrative review
type: item
description: Caffeine is one of the most widely consumed psychoactive substances worldwide, present in beverages such as coffee, tea, soft drinks, and energy drinks. Its main effect is the stimulation of the central nervous system, promoting increased alertness and reduced fatigue. However, its impacts on mental health, especially in individuals with anxiety disorders (who are predisposed), still raise questions. This study aimed to analyze, through an integrative literature review, the effects of caffeine consumption in individuals with anxiety disorders, comparing them to the effects observed in people without this condition, as well as results with differences in dose, sociocultural and genetic factors. The research was conducted using secondary sources available in the PubMed, SciELO, and Google Scholar databases, considering publications between 2015 and 2025, mainly research and studies. The results pointed to a possible relationship between high caffeine consumption and the worsening of anxiety symptoms, such as irritability, insomnia, tachycardia, and restlessness, suggesting the importance of individualized clinical guidance regarding the use of the substance. The study aims to contribute to the conscious use of caffeine and expand knowledge about its effects in more sensitive populations.
creator: Raimundo Luiz Silva Pereira
creator: Caio Pereira Lima
creator: Maria Hellena Garcia Novais
creator: Delmacia Gonçalves de Macêdo
creator: Daiany Alves Ribeiro
creator: Dárcio Luiz de Sousa Júnior
creator: Marina Micaelle Rodrigues Siqueira
creator: Amanda de Andrade Marques
creator: Jefferson David Melo de Matos
creator: Júlio César Silva
creator: Antonio Júdson Targino Machado
creator: Maysa de Oliveira Barbosa
rights: Copyright (c) 2026 Scientific Electronic Archives http://creativecommons.org/licenses/by/4.0
license: http://creativecommons.org/licenses/by/4.0
date: 2026-04-13
publication date: 2026-04-13
volume: 19
number: 3
starting page: 1
ending page: 6
doi: 10.36560/19320262193

Extraction and purification of major phytocannabinoids (Δ⁹-THC and CBD) in Cannabis sativa grown in northeastern Brazil
type: item
description: Chemical profile and stability of cannabinoids in Cannabis sativa are influenced by environmental conditions and extraction procedures. Selective and mild extraction methods are essential to preserve cannabinoid integrity and ensure reproducibility and quality of medicinal Cannabis products. This study investigated the occurrence of the major cannabinoids Δ⁹-tetrahydrocannabinol (Δ⁹-THC) and cannabidiol (CBD) in Cannabis sativa cultivated in the semi-arid Agreste region of Northeast Brazil and evaluated a novel, low-stress method for their simultaneous extraction and purification. An experimental comparative study was conducted using cultivated Cannabis sativa inflorescences and two distinct extraction–purification approaches. Inflorescences of Cannabis sativa L. (var. Charlotte’s Web) cultivated in Sairé, Pernambuco, Brazil, were subjected to Soxhlet extraction and to the Góes method, a milder extraction procedure with reduced thermal exposure. Cannabinoid profiles and degradation products were analyzed by gas chromatography-mass spectrometry (GC-MS). Soxhlet extraction using ethanol and cyclohexane resulted in higher total cannabinoid yield but promoted partial thermal degradation of Δ⁹-THC, evidenced by the formation of cannabinol (CBN). The Góes method selectively yielded purified Δ⁹-THC without detectable degradation products. CBD was not detected in the analyzed samples, which may be related to solvent polarity constraints and cultivation under high temperature and intense solar radiation typical of the Agreste region. Extraction conditions, particularly temperature and solvent polarity, critically affect cannabinoid yield and chemical stability. The Góes method emerges as a selective, low-cost alternative for obtaining high-purity Δ⁹-THC, supporting improved standardization and quality control of medicinal and artisanal Cannabis preparations.
creator: Mariza Severina de Lima Silva
creator: Robson Rodrigo Freire Evangelista
creator: Karen Albuquerque Barbosa Pereira
creator: Cynthia Milly Gomes da Silva
creator: Alberto André Ferreira Fernandes
creator: Valéria Espíndola de Lima Cavalcanti de Lira
creator: Alexandre José da Silva Góes
creator: Antonio Gomes de Castro Neto
rights: Copyright (c) 2026 Scientific Electronic Archives http://creativecommons.org/licenses/by/4.0
license: http://creativecommons.org/licenses/by/4.0
date: 2026-04-13
publication date: 2026-04-13
volume: 19
number: 3
starting page: 1
ending page: 10
doi: 10.36560/19320262203

Timed artificial insemination in cattle: advances, impacts, and future perspectives
type: item
description: Timed artificial insemination (TAI) has consolidated itself as one of the main reproductive biotechnologies in Brazilian cattle production, promoting significant advances in the productive, genetic, and economic indices of herds. In recent decades, especially between 2020 and 2025, there has been expressive growth in the use of this technique in Brazil, making the country the world leader in the number of protocols performed. Recent scientific advances have contributed to the improvement of hormonal protocols, with emphasis on the simplification of management, strategic use of hormones such as progesterone, estradiol, prostaglandin F2α, and eCG, in addition to the development of specific programs for challenging categories, such as anestrous cows and super precocious heifers. Studies demonstrate that TAI provides higher pregnancy rates, anticipation of conception, accelerated genetic improvement, and greater productive efficiency when compared to traditional reproductive methods. Furthermore, the association of the technique with technological tools, such as sex-sorted semen, resynchronization, genomic evaluation, and digital monitoring systems, has further expanded its efficiency and applicability in modern production systems
creator: Eloa Lima de Oliveira Portela
creator: Júlia Silva de Oliveira
creator: Isabela Correa da Costa Marques
creator: Raynara De Lima Goi
creator: Julia Mello Wesz
creator: Enzo Pugliese
creator: Maria Eduarda dos Santos Silva Lopes
creator: Sophia Marques Miranda
creator: Yasmim Eduarda Venturini dos Santos
creator: Rodolfo Cassimiro de Araujo Berber
rights: Copyright (c) 2026 Scientific Electronic Archives http://creativecommons.org/licenses/by/4.0
license: http://creativecommons.org/licenses/by/4.0
date: 2026-06-01
publication date: 2026-06-01
volume: 19
number: 3
starting page: 1
ending page: 6
doi: 10.36560/19320262247

Use of honey as a bioindicator: an integrative review
type: item
description: This integrative literature review aimed to evaluate the use of honey produced by bees of the genus Apis as a bioindicator. From 177 records identified in the PubMed, Scopus, and Web of Science databases, 30 studies published between 2019 and 2025 were selected and analyzed. Only publications addressing the use of honey as an “environmental bioindicator” were found. The studies covered different groups of pollutants, including potentially toxic elements (PTEs), agrochemicals, polycyclic aromatic hydrocarbons (PAHs), radionuclides, microplastics, flame retardants, plasticizers, and bisphenol A. The results show that honey is a suitable matrix capable of reflecting the environmental presence of various contaminants, although it exhibits low sensitivity to some of them due to its physicochemical characteristics and the natural barriers imposed by bee physiology. Studies indicate that other hive matrices, such as pollen, wax, propolis, and adult bees, often demonstrate greater efficiency in detecting certain pollutants, reinforcing the need for multi-matrix approaches. Despite the observed limitations, the literature indicates that honey is a promising tool for environmental biomonitoring, especially when integrated with robust analytical methods and complemented by the use of other apicultural matrices.
creator: Rafael Angelo Silva Oliveira
creator: Kássia de Castro Silva
creator: Henrique de Oliveira Prata Mendonça
creator: Ana Cardoso Clemente Filha Ferreira de Paula
creator: Julio Onesio-Ferreira Melo
rights: Copyright (c) 2026 Scientific Electronic Archives http://creativecommons.org/licenses/by/4.0
license: http://creativecommons.org/licenses/by/4.0
date: 2026-05-28
publication date: 2026-05-28
volume: 19
number: 3
starting page: 1
ending page: 11
doi: 10.36560/19320262237

Molibdênio no sistema solo-planta: dinâmica, funções fisiológicas e implicações para a nutrição de plantas
type: item
description: O molibdênio (Mo) é um micronutriente essencial ao metabolismo vegetal, atuando principalmente como cofator de enzimas envolvidas em reações redox, sendo diretamente ligado aos processos relacionados ao metabolismo do nitrogênio. Sua presença é fundamental para a atividade da nitrogenase responsável pela fixação biológica do nitrogênio (FBN) e da redutase do nitrato, enzimas que participam da assimilação do nitrato (NO₃⁻) e da conversão de compostos nitrogenados em formas assimiláveis pelas plantas. A disponibilidade do Mo no solo depende de fatores como pH, teor de matéria orgânica, presença de óxidos de ferro e alumínio e interação com ânions competitivos, como o sulfato (SO₄²⁻) e o fosfato (HPO₄²⁻). Sua absorção ocorre predominantemente na forma de molibdato (MoO₄²⁻), via fluxo de massa e, possivelmente, por transporte ativo. Apesar de ser exigido em pequenas quantidades, o Mo exerce grande influência sobre a produtividade vegetal, especialmente em leguminosas. A deficiência do elemento causa acúmulo de nitrato nas folhas, deformações e cloroses, refletindo negativamente na assimilação do nitrogênio, no vigor e na produtividade das culturas. Diante disso, a adequada compreensão da dinâmica do molibdênio é essencial para o manejo nutricional equilibrado, contribuindo para a eficiência fisiológica, o manejo racional da adubação e o desenvolvimento das culturas agrícolas.
creator: Bárbara Vieira dos Santos
creator: Ellen Jardyelle de Carvalho da Conceição
creator: Flavielli Porto da Silva
creator: Milleny Nogueira Serafim
creator: Rithielly Machado Rodrigues de Araújo
creator: Arielle Gonçalves Abdala
creator: Ane Gabriele Vaz Souza
creator: Flivia Fernandes de Jesus Souza
creator: Valeska Cristina Souza Silva de Assis
creator: Mariana Pina da Silva Berti
rights: Copyright (c) 2026 Scientific Electronic Archives http://creativecommons.org/licenses/by/4.0
license: http://creativecommons.org/licenses/by/4.0
date: 2026-05-08
publication date: 2026-05-08
volume: 19
number: 3
starting page: 1
ending page: 11
doi: 10.36560/19320262211

Influência da pressão e da velocidade de deslocamento na qualidade da pulverização e deposição de gotas em aplicações agrícolas
type: item
description: A eficiência na aplicação de defensivos agrícolas é um dos principais fatores que determinam o sucesso das práticas fitossanitárias e a sustentabilidade da produção agrícola. Este estudo teve como objetivo avaliar os efeitos da pressão de pulverização e da velocidade de deslocamento sobre a qualidade e a eficiência da pulverização em condições controladas de campo. O experimento foi conduzido na fazenda experimental Luiz Lourenço Lança, em Taguaí (SP), utilizando um pulverizador de barras (marca INCOMAGRI, modelo ATTACK) equipado com bicos do tipo leque (Jacto JSF 11003). Adotou-se delineamento em blocos casualizados, com quatro repetições, em arranjo fatorial 4 × 4, combinando quatro níveis de pressão (1, 2, 3 e 4 bar) e quatro velocidades de deslocamento (3, 5, 7 e 9 km h⁻¹). As avaliações foram realizadas por meio da análise de cartões hidrossensíveis e processadas com o software Gotas (EMBRAPA), obtendo-se variáveis como vazão, cobertura, densidade, fator de dispersão e diâmetro volumétrico médio (D50). Os dados foram submetidos a modelos lineares generalizados para análise dos efeitos principais e de interação entre pressão e velocidade. Os resultados indicaram que o aumento da pressão elevou significativamente a vazão (p < 0,001) e a cobertura (p < 0,001), porém reduziu a densidade de gotas (p = 0,048), demonstrando um equilíbrio delicado entre volume aplicado e deposição efetiva. A velocidade exerceu efeito negativo sobre a vazão, mas contribuiu positivamente para a cobertura quando combinada a pressões moderadas. Houve interação significativa entre pressão e velocidade para as variáveis de densidade e cobertura, evidenciando que o ajuste isolado de um único parâmetro pode comprometer a eficiência da aplicação. A análise do D50 mostrou que pressões elevadas aumentaram o tamanho médio das gotas, enquanto velocidades maiores intensificaram sua fragmentação. De modo geral, pressões intermediárias (2–3 bar) associadas a velocidades médias (5–7 km h⁻¹) proporciona…
creator: Diego José Bernardo de Oliveira
creator: Viviane Maria Codognoto
creator: Zimbábwe Osório Santos
creator: Antonio Cezar Bérgamo
creator: Luiz Vitor Crepaldi Sanches
creator: José Guilherme Lança Rodrigues
rights: Copyright (c) 2026 Scientific Electronic Archives http://creativecommons.org/licenses/by/4.0
license: http://creativecommons.org/licenses/by/4.0
date: 2026-04-13
publication date: 2026-04-13
volume: 19
number: 3
starting page: 1
ending page: 10
doi: 10.36560/19320262187

First report of multidrug-resistant Staphylococcus pseudintermedius as an agent of healthcare-associated infection in a dog in Brazil
type: item
description: Healthcare-Associated Infections (HAIs) are infections acquired after procedures or hospital admissions. HAIs are of great relevance to public health due to their impact, and mainly due to the emergence of antimicrobial resistance. Some studies show the presence of HAIs in animals with reports of outbreaks and the presence of multidrug-resistant bacteria. The objective of this work is to report the first record of a multidrug-resistant strain of Staphylococcus pseudintermedius in a case of Healthcare-Associated Infection in a dog in Brazil. A multidrug-resistant strain of Staphylococcus sp. was obtained, isolated from a dog with recurrent skin infections after undergoing oncological surgeries. The isolate was identified as Staphylococcus pseudintermedius with a multidrug resistance pattern to Enrofloxacin, Neomycin, Gentamicin, Tobramycin, Norfloxacin, Tetracycline, Penicillin, Oxacillin, Cefoxitin, Clindamycin, Marbofloxacin, Erythromycin and Sulfamethoxazole+Trimethoprim, in addition, the presence of resistance genes blaZ, mecA, tetM, ermB and norC was detected. Therefore, it is essential to create a hospital infection control committee in the field of veterinary medicine, as well as the implementation of policies. The study highlights the importance of detecting and identifying multidrug-resistant strains, reinforcing the need for preventive approaches in veterinary medicine and ensuring the effectiveness of treatments and promoting the health of all species.
creator: Lucilene Martins Trindade Goncalves
creator: Denny Parente de Sá Barreto Maia Leite
creator: Maria Eduarda Uchôa Cavalcanti Moreira da sil
creator: Pollyanne Raysa Fernandes de Oliveira
creator: Rinaldo Aparecido Mota
creator: Erika Fernanda Torres Samico Fernandes Cavalcanti
rights: Copyright (c) 2026 Scientific Electronic Archives http://creativecommons.org/licenses/by/4.0
license: http://creativecommons.org/licenses/by/4.0
date: 2026-04-13
publication date: 2026-04-13
volume: 19
number: 3
starting page: 1
ending page: 4
doi: 10.36560/19320262189

Associative diazotrophic bacteria isolated from different biomes as potential plant growth promoters of common bean
type: item
description: Associative diazotrophic bacteria can promote plant growth; however, their efficiency depends on the compatibility among host, microorganism, and environment. This study evaluated bacterial strains with high in vitro potential for nitrogen (N) fixation and indole-3-acetic acid (IAA) synthesis, isolated from the Atlantic Forest (Sp7), Cerrado (Ab-V5), and Amazon (MS32 and MS52) biomes, regarding their ability to promote growth and nodulation of common bean (Phaseolus vulgaris L.). The experiment was conducted in a greenhouse, in a completely randomized design with eight replications. Emergence, chlorophyll index, morphological parameters, nodulation, and rhizospheric bacterial density were evaluated. Although the selected strains showed high in vitro potential for N fixation and IAA production, they did not promote common bean growth. These results indicate the need to investigate other growth-promotion mechanisms that may be more promising for selecting efficient bacteria for common bean growth promotion.
creator: Lucas Rodrigues Versari
creator: Adriana Terezinha Wasmuth
creator: Daniele Cristina Costa Sabino
creator: Lidia Catrinque Rodrigues
creator: Iara Garcês Dias
rights: Copyright (c) 2026 Scientific Electronic Archives http://creativecommons.org/licenses/by/4.0
license: http://creativecommons.org/licenses/by/4.0
date: 2026-04-13
publication date: 2026-04-13
volume: 19
number: 3
starting page: 1
ending page: 5
doi: 10.36560/19320262190

Plant growth-promoting bacteria: Advancing sustainable agriculture in north Africa
type: item
description: The overreliance on chemical nitrogen (N) fertilizers has led to environmental degradation, soil health decline, and rising costs. This challenge is especially relevant in North Africa, where fertilizer use remains relatively low, yet the demand for higher agricultural productivity and food security continues to grow. Plant Growth-Promoting Bacteria (PGPB) have emerged as an eco-friendly alternative to synthetic fertilizers, supporting plant development through N fixation, phytohormone production, nutrient solubilization, and pathogen control. Genera such as Azospirillum and Rhizobium are among the most studied, showing the ability to enhance N availability, crop resilience to drought and salinity, and overall yields. This review synthesizes current knowledge on PGPB in North Africa, with emphasis on Algeria, Morocco, and Tunisia. Native strains adapted to arid and semi-arid conditions have shown promising results in improving soil fertility and crop performance. However, limited farmer awareness, resistance to change, environmental variability, and weak policy support hinder large-scale adoption. Advancing PGPB use requires research on native strains, farmer training, and enabling policies. Harnessing PGPB can reduce dependence on chemical inputs while promoting sustainable agriculture, environmental protection, and food security in the region.
creator: Zahia Sebkhi
creator: Bruno Carneiro e Pedreira
rights: Copyright (c) 2026 Scientific Electronic Archives http://creativecommons.org/licenses/by/4.0
license: http://creativecommons.org/licenses/by/4.0
date: 2026-04-13
publication date: 2026-04-13
volume: 19
number: 3
starting page: 1
ending page: 8
doi: 10.36560/19320262195

Economic potential of Eucalyptus spp. plantations in Livestock–Forest Integration systems (iLF) in the Amazon
type: item
description: The search for profitable and sustainable alternatives for production in the Amazon directs attention to Livestock–Forest Integration Systems (iLF), which may present, depending on the species used, high economic viability. Thus, the objective of this study was to evaluate the economic feasibility of establishing different hybrids of Eucalyptus spp. in a Livestock–Forest Integration system (iLF). The study was conducted at Fazenda União, located in the municipality of Pimenta Bueno, state of Rondônia, in an area of nine hectares. Three scenarios were proposed: scenario 1 (C1) and scenario 2 (C2), with rotations of four years and seven years, with the assortment destined for energy biomass, and scenario 3 (C3), ten years, destined for structural timber. The program SisILPF_Eucalipto was used to estimate production. The economic criteria used were: Benefit–Cost Ratio (B/C); Net Present Value (NPV); and Internal Rate of Return (IRR). A sensitivity analysis was performed by applying three different annual interest rates: 7.44%, 8.50%, and 12.90%. The establishment cost was R$3,211.28 ha⁻¹, with estimated production for C1, C2, and C3 of 81.14 st ha⁻¹, 184.86 st ha⁻¹, and 261.43 st ha⁻¹, respectively. Thus, the economic evaluation criteria applied to all scenarios were viable, regardless of the interest rate used, with C3 demonstrating higher economic returns. Therefore, these analyses provide support for the development of this type of enterprise in the region and state, being important to motivate producers, identifying potential returns and encouraging the adoption of silvicultural practices.
creator: Luana Gonçalves Verteiro
creator: Elmany Stefany Rodrigues Frisso
creator: Robson da Silva Ribeiro
creator: Romano Timofeiczyk Junior
creator: Thiago Cardoso Silva
creator: Karen Janones da Rocha
creator: Emanuel Maia
creator: Carolina Rafaela Barroco Soares
creator: Cibelle Amaral Reis
creator: Jadson Coelho de Abreu
creator: Gabriela Salami
creator: Emmanoella Guaraná
rights: Copyright (c) 2026 Scientific Electronic Archives http://creativecommons.org/licenses/by/4.0
license: http://creativecommons.org/licenses/by/4.0
date: 2026-04-13
publication date: 2026-04-13
volume: 19
number: 3
starting page: 1
ending page: 10
doi: 10.36560/19320262196

Silício e fósforo na qualidade e rendimento de batata-doce sob déficit hídrico no semiárido
type: item
description: A batata-doce é uma cultura de grande relevância para a agricultura familiar do semiárido piauiense, devido à sua rusticidade e adaptabilidade. Entretanto, o déficit hídrico é um dos principais fatores limitantes da produtividade e qualidade dos tubérculos nessa região. O silício e o fósforo atuam no desenvolvimento das plantas sob déficit hídrico. Objetivou-se avaliar o efeito da adubação silicatada e fosfatada na qualidade e rendimento da batata-doce sob déficit hídrico no semiárido piauiense. O experimento foi conduzido em uma propriedade rural no município de Oeiras-PI, utilizando delineamento em blocos casualizados, em esquema fatorial (2x2), composto por adubação silicatada (com e sem silício) e adubação fosfatada (com e sem fósforo), com quatro repetições. A aplicação do déficit hídrico ocorreu por sete dias, durante a fase inicial de tuberização. Foram avaliados o diâmetro e comprimento de tubérculos, número total e comercial de tubérculos, massa média, produtividade total e comercial e teor de sólidos solúveis totais. Houve efeito da interação entre silício e fósforo para o número total de tubérculos, onde o fósforo promoveu aumento dessa variável na ausência do silício. Para as demais variáveis analisadas, não houve diferença. O fósforo aumenta o número de tubérculos de batata-doce, sob déficit hídrico, na ausência de silício. É necessário o desenvolvimento de novos estudos para aprofundar a compreensão sobre a interação entre fósforo e silício, em diferentes condições de solo e ambiente, para subsidiar estratégias de manejo mais eficientes para a cultura.
creator: Ellen da Silva Melo
creator: Jefrejan Souza Rezende
creator: Rachel Borges da Silva
creator: Gilcimar de Carvalho Ferreira
creator: Ernando Sávio Rodrigues de Melo
creator: Danilo da Silva Soares Dantas
creator: Vitória Janne Mendes Gomes
creator: Marcus Richard Marreiros Macêdo
creator: Vanessa Mendes da Silva
creator: João Marcelo Alves Lima
rights: Copyright (c) 2026 Scientific Electronic Archives http://creativecommons.org/licenses/by/4.0
license: http://creativecommons.org/licenses/by/4.0
date: 2026-04-13
publication date: 2026-04-13
volume: 19
number: 3
starting page: 1
ending page: 7
doi: 10.36560/19320262197

https://scientificelectronicarchives.org/index.php/SEA/article/view/2198
type: item
title: Antifungal activity of Cenostigma pluviosum var. peltophoroides extract against Colletotrichum isolates associated with soybean anthracnose: effects on sporulation, conidial germination, and appressorium formation
description: Plant-derived compounds have been widely investigated as potential alternatives to synthetic fungicides in plant disease management. This study evaluated the antifungal activity of an ethanolic extract obtained from leaves of Cenostigma pluviosum var. peltophoroides against Colletotrichum spp. isolated from soybean plants affected by anthracnose. The isolates were obtained from soybean fields located in three municipalities in the state of Mato Grosso, Brazil. Antifungal activity was evaluated using in vitro assays, including disk-diffusion and spreading methods, to assess mycelial growth inhibition, mycelial growth rate index, sporulation inhibition, conidial germination, and appressorium formation. The extract showed limited inhibition of mycelial growth but significantly reduced sporulation and strongly inhibited appressorium formation, reaching up to 92.30% inhibition. The spreading method showed greater sensitivity for detecting sporulation inhibition compared with the disk-diffusion method. These results indicate that the extract interferes with important stages of the fungal infection process and may represent a potential source of bioactive compounds for alternative management strategies for soybean anthracnose. Further studies are required to identify the active compounds and evaluate their effectiveness under greenhouse and field conditions.
creator: Airton Lima
creator: Ana Gabriela Araújo Verçosa
creator: Amanda Caroline Lima Cunha
creator: Ednaldo Antônio Andrade
creator: Larissa Cavalheiro da Silva
creator: Gerardo Magela Vieira Júnior
creator: Carlos Guilherme Theodoro dos Santos
creator: Solange Maria Bonaldo
rights: Copyright (c) 2026 Scientific Electronic Archives http://creativecommons.org/licenses/by/4.0
license: http://creativecommons.org/licenses/by/4.0
date: 2026-04-13
publication date: 2026-04-13
volume: 19
number: 3
starting page: 1
ending page: 7
doi: 10.36560/19320262198

Dystocia in bovine parturition: an updated literature review
type: item
description: This article examines dystocia in bovine parturition. The research problem investigated was: "What are the etiological factors, consequences, and management/prevention strategies for dystocia in bovine parturition, considering bioethical and productive aspects?" The proposed hypothesis was: "Dystocia in bovine parturition is a multifactorial condition with significant impacts on animal health and livestock economy; its prevention and effective management depend on the understanding of etiology, pathophysiology, and the application of clinical and surgical interventions guided by bioethical principles." The general objective is to critically analyze recent scientific literature on bovine dystocia, focusing on its causes, consequences, diagnostic methods, treatment, and prevention. The specific objectives are: to identify the main maternal and fetal factors predisposing to dystocia; to describe the productive and economic impacts in cattle farming; to discuss clinical and surgical approaches for dystocia management; and to analyze the bioethical considerations in dystocic parturition assistance. This work is relevant to Animal Reproduction students due to the necessity of mastering this topic for clinical practice and research. For science, it consolidates knowledge on a highly relevant reproductive problem and stimulates new research. For society, it contributes to improving animal welfare and the sustainability of livestock production. This is a qualitative, theoretical research with a six-month duration
creator: Júlia Silva de Oliveira
creator: Rafaela Forte Teixeira
creator: Isabela Correa da Costa Marques
creator: Marcella Vitória Ferreira Lopes
creator: Raynara De Lima Goi
creator: Julia Mello Wesz
creator: Giovana Passos Medeiros
creator: Jessica da Silva Pereira
creator: Enzo Pugliese
creator: Ana Clara Gomes de Souza
creator: Maria Eduarda dos Santos Silva Lopes
creator: Sophia Marques Miranda
creator: Sibely Barbosa Sena
creator: Yasmim Eduarda Venturini dos Santos
creator: Eloa Lima de Oliveira Portela
creator: Felipe Cantore Tiburcio
creator: Jorge Willian Franco de Barros
creator: Rafael Barrera Salgueiro
creator: Rodolfo Cassimiro de Araujo Berber
rights: Copyright (c) 2026 Scientific Electronic Archives http://creativecommons.org/licenses/by/4.0
license: http://creativecommons.org/licenses/by/4.0
date: 2026-05-28
publication date: 2026-05-28
volume: 19
number: 3
starting page: 1
ending page: 5
doi: 10.36560/19320262245

Evaluation of the biological activity of venom extracts from the toads Rhinella marina and Rhaebo guttatus on peripheral blood monocytes from healthy human subjects
type: item
description: Skin secretions from toads of the Bufonidae family contain immunomodulatory and antioxidant substances and have pharmaceutical potential for treating cancer, degenerative diseases, and cardiovascular conditions. Previous studies have demonstrated that the methanolic extracts of Rhinella marina and Rhaebo guttatus have an immunomodulatory effect on murine macrophages, stimulating the production of pro-inflammatory cytokines and hydrogen peroxide. However, little is known about its effect on human monocytes. Therefore, the aim of this study was to evaluate the in vitro effect of these extracts on the function of human peripheral blood monocytes by assessing cytotoxicity and the production of nitric oxide and hydrogen peroxide. The amphibians were collected in Mato Grosso, Brazil. In the laboratory, their paratoid glands were compressed to extract the venom. Voucher specimens were deposited in the Biological Collection of the Southern Amazon (Sinop/MT). To obtain monocytes, peripheral blood samples were collected from 16 healthy individuals (aged 30–45 years) who had not used any class of medication for the previous 15 days. The monocytes were cultured (5% CO2 at 37°C) with different extract concentrations for 18 h (for cytotoxicity assessment) or 24 h (for activity assessment). For R. marina venom, the most toxic concentration was 1000 µL mL-1, whereas non-toxic concentrations were 62.5 µL mL-1, 15.63 µL mL-1, and 7.8 µL mL-1. For R. guttatus, concentrations ranging from 1000 µL mL-1 to 31.25 µL mL-1 were the most toxic, and the non-toxic concentrations were 15.63 µL mL-1 and 7.8 µL mL-1. The cells did not produce nitric oxide or hydrogen peroxide in response to stimulation with the extracts. We conclude that extracts from the skin secretions of R. marina and R. guttatus exhibit a concentration-dependent cytotoxic effect on human monocytes but do not modulate the cells’ in vitro ability to produce nitric oxide and hydrogen peroxide.
creator: Rafaela Cirota Santangelo
creator: Lucinéia Reuse Albiero
creator: Valéria Dornelles Gindri Sinhorin
creator: Adilson Paulo Sinhorin
creator: Domingos de Jesus Rodrigues
creator: Lindsey Castoldi
rights: Copyright (c) 2026 Scientific Electronic Archives http://creativecommons.org/licenses/by/4.0
license: http://creativecommons.org/licenses/by/4.0
date: 2026-05-08
publication date: 2026-05-08
volume: 19
number: 3
starting page: 1
ending page: 11
doi: 10.36560/19320262222

Oxidative stress in stingless bees exposed to pesticides and heavy metals: a systematic review
type: item
description: Stingless bees play a crucial role in maintaining biodiversity and supporting agricultural production; however, they are increasingly exposed to environmental contaminants associated with the intensification of anthropogenic activities. This qualitative systematic review aimed to synthesize and comparatively analyze the available evidence on the effects of pesticides and heavy metals on oxidative stress biomarkers in stingless bees, considering the evaluated species, classes of contaminants, exposure routes, and observed physiological responses. Literature searches were conducted in the Web of Science and Scopus databases via the CAPES Journals Portal, resulting in the inclusion of 18 studies. The findings indicate that insecticides, fungicides, herbicides, and heavy metals induce relevant sublethal effects, frequently converging on physiological pathways related to redox imbalance, such as the modulation of antioxidant enzymes and increased markers of oxidative damage. The review also highlights the predominance of laboratory-based studies and the concentration of data on a limited number of species, underscoring important knowledge gaps.
creator: Laisa Prestes
creator: Denise Cargnelutti
rights: Copyright (c) 2026 Scientific Electronic Archives http://creativecommons.org/licenses/by/4.0
license: http://creativecommons.org/licenses/by/4.0
date: 2026-04-13
publication date: 2026-04-13
volume: 19
number: 3
starting page: 1
ending page: 9
doi: 10.36560/19320262200

Atividade antibacteriana e modificação da ação antibiótica do citral frente a cepas de Acinetobacter baumannii
type: item
description: A resistência antimicrobiana constitui um dos principais desafios de saúde pública contemporâneos, impulsionando a busca por novas estratégias terapêuticas, incluindo o uso de compostos naturais como agentes antimicrobianos ou moduladores da atividade antibiótica. O citral, um monoterpeno presente em Cymbopogon citratus, tem demonstrado potencial antimicrobiano frente a diferentes patógenos bacterianos. Diante disso, este estudo teve como objetivo avaliar a atividade antibacteriana intrínseca do citral e sua capacidade de modificar a ação de antibióticos frente a Acinetobacter baumannii. A concentração inibitória mínima (CIM) do citral foi determinada pelo método de microdiluição em caldo, utilizando resazurina como indicador de viabilidade bacteriana. A atividade moduladora foi avaliada por meio da associação do citral, em concentração subinibitória, com os antibióticos ciprofloxacina, gentamicina e oxacilina. Os ensaios foram realizados em triplicata e analisados estatisticamente por ANOVA one-way, seguida do teste de Tukey. Os resultados demonstraram que o citral apresentou atividade antibacteriana direta moderada, com valores de CIM variando entre 512 e 1024 µg/mL. No entanto, as associações entre o citral e os antibióticos testados não promoveram alterações significativas nas CIMs, sendo classificadas como efeito indiferente. Esses achados sugerem que, embora o citral exerça ação antimicrobiana direta, sua capacidade de potencializar antibióticos frente a A. baumannii é limitada nas condições experimentais avaliadas, possivelmente em função dos complexos mecanismos de resistência e da baixa permeabilidade da membrana externa desse patógeno. Conclui-se que o citral apresenta potencial como agente antimicrobiano natural, porém novos estudos são necessários para explorar diferentes combinações terapêuticas e estratégias que ampliem sua eficácia frente a bactérias multirresistentes.
creator: Gabriela Felix Leite
creator: Raimundo Luiz Silva Pereira
creator: Isaac Moura Araújo
creator: Cicera Laura Roque Paulo
creator: Dárcio Luiz de Sousa Júnior
creator: Marina Micaelle Rodrigues Siqueira
rights: Copyright (c) 2026 Scientific Electronic Archives http://creativecommons.org/licenses/by/4.0
license: http://creativecommons.org/licenses/by/4.0
date: 2026-04-13
publication date: 2026-04-13
volume: 19
number: 3
starting page: 1
ending page: 5
doi: 10.36560/19320262188

Attention-Deficit/Hyperactivity Disorder in children and adolescents: comorbidity and developmental implications
type: item
description: Attention-Deficit/Hyperactivity Disorder (ADHD) is one of the most prevalent neurodevelopmental disorders, typically emerging in early childhood and persisting into adolescence and adulthood. Characterized by inattention, hyperactivity, and impulsivity, ADHD manifests in three primary types: predominantly inattentive, predominantly hyperactive-impulsive, and combined. Its etiology is multifactorial, encompassing genetic, neurobiological, environmental, and psychosocial factors. ADHD frequently co-occurs with comorbid conditions, including learning disabilities, anxiety, depression, behavioral disorders, and emotional dysregulation, which exacerbate functional impairments and social difficulties. Developmental trajectories reveal persistent cognitive deficits, especially in executive functions, contributing to academic underachievement, peer rejection, low self-esteem, and increased risk of maladaptive behaviors. Evidence-based interventions, including pharmacological treatment, behavioral strategies, special education services, and mindfulness programs, can enhance emotional regulation, self-esteem, and adaptive functioning. Understanding ADHD’s complex presentation, comorbidities, and psychosocial impact is essential for effective assessment, intervention, and support across childhood, adolescence, and adulthood.
creator: Maria Zografou
creator: Αlexandros-Stamatios Antoniou
creator: Georgios Polydoros
creator: Athanasios Drigas
rights: Copyright (c) 2026 Scientific Electronic Archives http://creativecommons.org/licenses/by/4.0
license: http://creativecommons.org/licenses/by/4.0
date: 2026-05-11
publication date: 2026-05-11
volume: 19
number: 3
doi: 10.36560/19320262224

Prospecção do potencial inovador em ciências agrárias e da saúde: diagnóstico sistemático e governança da inovação na UFMT-Campus de Sinop
type: item
description: A inovação universitária impulsiona o progresso socioeconômico, embora persista uma lacuna na translação do conhecimento científico em tecnologias protegidas. Este estudo avaliou o potencial de inovação e a maturidade tecnológica em projetos de pesquisa nas áreas de ciências agrárias e saúde da UFMT-Campus de Sinop. Através de abordagem quanti-qualitativa fundamentada no Manual de Oslo, analisaram-se 288 resumos homologados entre 2019 e 2023. Constatou-se que a maioria das propostas possui potencial baixo a nulo (75% agrárias; 71% saúde), com 54,6% concentrados no estágio TRL 1, embora parcelas estratégicas alcancem potencial alto ou muito alto (13% agrárias; 5% saúde). Notou-se severa dependência de recursos próprios (84,7%) e interação incipiente com o setor produtivo. Como campus de interior com apenas duas décadas, a unidade demonstra resiliência e maturidade crescente. Conclui-se que a conversão acadêmica em ativos tecnológicos requer políticas de incentivo e a consolidação da Hélice Tríplice para superar o isolamento técnico e ampliar o impacto socioeconômico regional.
creator: Eliane Pedroso de Quadros Schuck
creator: Paulo Leonardo Luft
creator: Suzinei Silva Oliveira
creator: Raoni Florentino da Silva Teixeira
creator: Stela Regina Ferrarini
rights: Copyright (c) 2026 Scientific Electronic Archives http://creativecommons.org/licenses/by/4.0
license: http://creativecommons.org/licenses/by/4.0
date: 2026-04-13
publication date: 2026-04-13
volume: 19
number: 3
starting page: 1
ending page: 9
doi: 10.36560/19320262199

Asymptotic connections between Elovich, PFO and PSO adsorption kinetics in a coverage-dependent rate model
type: item
description: The Elovich, pseudo-first-order (PFO), and pseudo-second-order (PSO) equations are widely used in adsorption kinetics, although the connection among them is often treated empirically. Here, we analyze a generalized adsorption rate equation in which the apparent adsorption coefficient decreases exponentially with surface coverage. The model recovers Elovich behavior at low coverage and yields effectively PFO- or PSO-like relaxation near equilibrium, depending on the magnitude of a composite coverage parameter. It also predicts an intermediate regime in which neither pseudo-order approximation is fully adequate. Application to representative literature datasets shows that this approach provides a practical tool for interpreting why different empirical fits succeed in different coverage domains and why some kinetic curves require direct numerical treatment. The framework is therefore best viewed as an effective tool for kinetic interpretation and regime classification rather than as a microscopic theory of surface heterogeneity
creator: Eric Marsalha Garcia
creator: Hosane Aparecida Taroco
creator: Júlio Onésio Ferreira Melo
rights: Copyright (c) 2026 Scientific Electronic Archives http://creativecommons.org/licenses/by/4.0
license: http://creativecommons.org/licenses/by/4.0
date: 2026-05-11
publication date: 2026-05-11
volume: 19
number: 3
starting page: 1
ending page: 12
doi: 10.36560/19320262221