bluuebunny/crossref_metadata_2025 huggingface dataset:
Infant mortality in a Brazilian Northeast State between 2009 and 2018: a temporal space approach
Authors: Silva Aline Vanessa da , Oliveira Emília Carolle Azevedo de , Silva Amanda Patrícia da , Silva Amanda Priscila de Santana Cabral
Published: May 2023

Abstract Objective: to present the epidemiological profile of infant mortality and neonatal and post neonatal components, in addition to the temporal dynamics of these events in Pernambuco State between 2009 and 2018. Methods: descriptive, ecological, temporal space study of infant mortality in Pernambuco between 2009 and 2018. Epidemiological and temporal space characteristics were described using the Sistema de Informação sobre Mortalidade (Mortality Information System) and the Sistema de Informação sobre Nascidos vivos.(Information System on Live Births) as data sources. Results: there were 19,436 infant deaths in the period; 13,546 (69.7%) in the neonatal period and 5,890 (30.3%) in the post neonatal period. Male (55.4%), non-white children (74.7%) with low birth weight (63.5%) predominated; mothers were aged between 20 and 29 years (46.6%), with 8-11 years of schooling (43.9%) and preterm pregnancy (65.2%). Although the infant mortality rate decreased during the analyzed decade, high rates persisted in cities in the Sertão (backwoods) and Vale do São Francisco and Araripe macroregions of health services. Conclusions: even though infant mortality declined over the years studied, it is necessary to achieve better rates and confront inequalities and other obstacles that perpetuate the event in Pernambuco State.
Influência da percepção do cuidado e da proteção materna sobre as práticas de aleitamento materno em lactentes no terceiro mês de vida
Authors: Matos Salete de , Bernardi Juliana Rombaldi , Guimarães Luciano Santos Pinto , Werlang Isabel Cristina Ribas , Silva Clécio Homrich da , Goldani Marcelo Zubaran
Published: May 2023

Resumo Objetivos: avaliar a influência da percepção do cuidado e da proteção materna sobre as práticas de aleitamento materno em lactentes no terceiro mês de vida. Métodos: estudo longitudinal, com pares mães-lactentes distribuídos em cinco grupos de diferentes condições clínicas gestacionais. O recrutamento ocorreu no período de 2011 a 2016 em três hospitais da rede pública de saúde de Porto Alegre, Brasil. Foram utilizados o Parental Bonding Instrument e o Edinburgh Postpartun Depression Scale. O aleitamento materno exclusivo e continuado foi analisado por questionários. Na análise de dados foram utilizados os testes de ANOVA com post-hoc de Tukey, Kruskal-Wallis com post-hoc de Dunn e Qui-quadrado. Resultados: foram investigados 209 pares mães-lactentes. Entre aqueles que não praticaram o aleitamento materno foi observadouma menor percepção de cuidado materno, uma maior percepção de proteção materna e ummaior escore de depressão pós-parto (p=0,022, p=0,038 e p<0,001, respectivamente) quandocomparados aos pares mães-lactentes que praticaram. O grupo controle teve significativamente maior percepção do cuidado materno quando comparado ao grupo com diabetes mellitus (p=0,006) enquanto a percepção de proteção materna e a depressão pós-parto não apresentaram diferenças entre os cinco grupos intrauterinos (p>0,05). Conclusões: a percepção de cuidado e proteção materna e asintomatologia depressiva pós-parto influenciaram o aleitamento materno aos três meses. É possível assumir um efeito transgeracional no aleitamento materno, sugerindo a existência de um modelo complexo relacionado à saúde mental numa amostra de mulheres que tinham diferentes antecedentes de condições clínicas gestacionais.
Impacto socioeconômico da cultura da soja nas áreas mínimas comparáveis do Brasil
Authors: Andrade Neto Antonio Octaviano de , Raiher Augusta Pelinski
Published: May 2023

Resumo Este artigo avalia o efeito do cultivo da soja sobre o nível de desenvolvimento socioeconômico e do crescimento econômico das AMC’s (Áreas Mínimas Comparáveis) brasileiras, entre os anos de 1991 e 2010. Para isso, foram estimados os modelos Diferenças em Diferenças com Escore de Propensão (DDM), avaliando o impacto de ser produtor de soja no Produto Interno Bruto (PIB) per capita e nas dimensões do Índice de Desenvolvimento Humano Municipal (IDH-M). Os resultados demonstraram que a produção de soja não impactou o IDH-M global, apresentando efeito positivo apenas no IDHM-conhecimento. No caso da dimensão longevidade, identificou-se um impacto negativo, possivelmente em decorrência do uso intensivo de agrotóxicos, que afeta a saúde dos trabalhadores rurais e moradores de localidades próximas. No caso do crescimento econômico, o efeito foi positivo, inferindo que “ser uma AMC produtora de soja” tende, na média, a intensificar o PIB per capita.
S&P500 volatility and Brexit contagion
Authors: Gomes Matheus Vinicius , Cicogna Maria Paula Vieira
Published: May 2023

Abstract This paper investigated the existence of contagion between S&P500 and FTSE100 stock indexes, the two major stock exchange markets in the world, due to Brexit. Brexit caused a wave of volatility in international financial markets and the immediate reaction in US market has brought instability among investors, who remained cautious regarding the unexpected unfolds over the global economy. Dynamic conditional correlation model (DCC GARCH) was applied to analyze the shift-contagion phenomenon in the time series data. The results showed that there was no evidence of shift-contagion between the two markets during the Brexit period. It was possible to observe a moderate increase in the conditional correlation during the month of the Brexit referendum, which may be due to the high interdependence between the two asset markets.
Effectiveness of educational video on deaf people’s knowledge and skills for cardiopulmonary resuscitation: a randomized controlled trial
Authors: Galindo Neto Nelson Miguel , Sá Guilherme Guarino de Moura , Barros Lívia Moreira , Lima Magda Milleyde de Sousa , Santos Sônia Maria Josino dos , Caetano Joselany Áfio
Published: May 2023

ABSTRACT Objective: To analyze the effectiveness of an educational video on deaf people’s knowledge and skills about cardiopulmonary resuscitation. Method: A randomized trial, carried out at three schools with 113 deaf people (control group = 57 and intervention group = 56). After the pre-test, the control group was exposed to the lecture, while the intervention group was exposed to the video. The post-test occurred immediately after the intervention and was repeated after 15 days. A validated instrument was used, with 11 questions, presented in video/Libras (to enable understanding by deaf people) and in written/printed form (to record the answers). Results: In the analysis of knowledge, the median of correct answers in the pre-test was similar between the groups (p = 0.635), while the intervention group had a higher accuracy in the immediate post-test (p = 0.035) and after 15 days (p = 0.026). In the skill analysis, the median of correct answers in the pre-test was higher in the control group (p = 0.031). There was no difference in the immediate post-test (p = 0.770), and there was a higher accuracy in the intervention group in the post-test after 15 days (p = 0.014). Conclusion: The video proved to be effective in increasing deaf people’s knowledge and skills about cardiopulmonary resuscitation. Brazilian Registry of Clinical Trials: RBR-5npmgj.
Efetividade de vídeo educativo no conhecimento e habilidade de surdos para ressuscitação cardiopulmonar: ensaio randomizado controlado
Authors: Galindo Neto Nelson Miguel , Sá Guilherme Guarino de Moura , Barros Lívia Moreira , Lima Magda Milleyde de Sousa , Santos Sônia Maria Josino dos , Caetano Joselany Áfio
Published: May 2023

RESUMO Objetivo: Analisar a efetividade de vídeo educativo no conhecimento e habilidade de surdos acerca da ressuscitação cardiopulmonar. Método: Ensaio randomizado, realizado em três escolas com 113 surdos (grupo controle = 57 e grupo intervenção = 56). Após o pré-teste, o grupo controle foi exposto à aula expositiva, enquanto o grupo intervenção foi exposto ao vídeo. O pós-teste ocorreu imediatamente depois da intervenção, e foi repetido após 15 dias. Foi utilizado instrumento validado, com 11 questões apresentadas em vídeo/libras (para viabilizar compreensão dos surdos) e de forma escrita/impressa (para registro das respostas). Resultados: Na análise do conhecimento, a mediana dos acertos do pré-teste foi semelhante entre os grupos (p = 0,635), enquanto houve maior acerto do grupo intervenção no pós-teste imediato (p = 0,035) e após 15 dias (p = 0,026). Na análise da habilidade, a mediana dos acertos do pré-teste foi maior no grupo controle (p = 0,031). Não houve diferença no pós-teste imediato (p = 0,770), e houve maior acerto do grupo intervenção no pós-teste após 15 dias (p = 0,014). Conclusão: O vídeo mostrou-se efetivo no aumento do conhecimento e habilidade de surdos acerca da ressuscitação cardiopulmonar. Registro Brasileiro de Ensaios Clínicos: RBR-5npmgj.
Effect of Smoking Cessation Program: a review of this public policy for tobacco dependence
Authors: Lopes Fernanda Machado , Moraes Camila Angelina de , Rodrigues Gabriela , Cardozo Louisi , Bezerra Jozabete Ferreira de Oliveira , Szupszynski Karen Priscila Del Rio
Published: May 2023

Abstract Objective Brazil Health Ministry’s guidelines for tobacco control include the Smoking Cessation Program, developed by the Instituto Nacional de Câncer of Brazil. This review aims to describe the studies in which this Program has been applied, reviewing its procedures, effects, potential and limitations. Method Articles from PubMed, PsycINFO, Virtual Health Library and Scientific Electronic Library Online, published between 2002 and 2019, were evaluated, using the descriptors “Smoking Cessation Program” and “smoking cessation” in Portuguese, Spanish and English. A total of 1670 articles were pre-selected, of which 15 resulted eligible for final assessment. Results The results showed adherence rates from 33% to 100%, success rates from 15% to 85% after the intervention and 21% to 51% six months after treatment completion. This variability may be related to the lack of standardization and poor fidelity in the application of the Program, which intends to treat physical, psychological and behavioral dependence. Conclusion Investment in technical training and record monitoring is suggested.
The Case of the Case: The Writing and Application of the Method
Authors: Passos Ana Paula Pereira dos , Meneghini Eleandra Maria Prigol , Lana Jeferson , Marcon Rosilene
Published: May 2023

ABSTRACT his case aims to promote a reflection on the teaching case writing process and directions for applying the method. In 2020, João Luiz Marinho, a doctoral candidate in Administration at the University of Learning (UNIAPRE), was challenged by Professor Fernando to write his first teaching case for application in the Organizational Strategies discipline, of which he was an intern in teaching. However, many questions about the construction and application of teaching cases probed João’s thoughts, since he had no previous experience with the method, he had little practice in teaching, and the migration of classes to the online mode was very new. Thus, the proposal is to make students put themselves in João’s place, in order to provide a debate on the writing and application of a case for online teaching. It is suggested that it be applied in lato sensu and stricto sensu graduate courses in Administration in the disciplines of Methodology and Teaching Cases.
Nuveo: Ética Digital e Inteligência Artificial para Desafios do Mundo Real
Authors: Biondi Gabrielle Marques Castelo Branco , Cernev Adrian Kemmer
Published: May 2023

RESUMO Este caso de ensino apresenta o dilema enfrentado pela Nuveo em sua busca por crescer sustentavelmente e consolidar-se no mercado de inteligência artificial do país. Ao identificar a possibilidade de ofertar o uso da sua tecnologia de reconhecimento de imagens para a segurança pública, o fundador da startup depara-se com questões éticas envolvidas com essa oportunidade. Ao contar a história da Nuveo, este caso permite a identificação de princípios e recomendações para o desenvolvimento e uso ético de sistemas de IA, propiciando ainda discussões acerca dos desafios éticos relacionados à transformação digital e seus impactos para os indivíduos, empresas e sociedade. Este caso de ensino foi elaborado para ser aplicado em cursos de graduação e pós-graduação em administração de empresas, administração pública e tecnologia da informação, em disciplinas que abordem ética digital, ESG (environmental, social, and governance) e inteligência artificial.
Organic Cosmetics and the Use of Emotional Appeals
Authors: Souza Lucas Lopes Ferreira de , Victor Caio , Dumont Julia Jorge Rodrigues , Maia Lorena Medeiros
Published: May 2023

ABSTRACT Objective: to analyze the influence of emotional appeals on behavioral intention regarding organic products for personal care. Theoretical framework: this article uses the literature of emotional appeals, specifically the appeals of guilt, fear, authentic pride, and hubristic pride, to identify their effects on consumers’ behavioral intention in the context of organic personal care products. Emotional appeals of guilt, fear, authentic pride, and hubristic pride were examined. Methodology: four sequential experiments were conducted in real advertisement settings using a within-subjects and between-subjects experimental design. Data were analyzed using ANOVA. Results: the appeal of authentic pride was associated with a heightened value of joy and increased likelihood of consumer donation. The appeal of hubristic pride stimulated an effect of authentic pride. This way, the findings indicate that pride is a one-dimensional emotion in the national context of organic cosmetics consumers. Additionally, the appeal of one-dimensional pride aroused a more positive attitude and purchase intention regarding the advertised product compared to the emotions guilt, fear, and joy. Conclusion: these findings reposition the discussion on pride from a one-dimensional perspective because authentic pride stimulates joy. Further, positive appeals were more effective than negative appeals at increasing the consumers’ behavioral intention toward organic cosmetics. Contrary to the findings of previous surveys, pride was associated with more positive consumer attitudes toward the advertised product. Therefore, the use of pride appeal should be encouraged to promote consumer awareness.
O Convidado Ilustre: Observações sobre Participação e Prática Docente em Bancas Examinadoras
Authors: Vieira Francisco Giovanni David
Published: May 2023

RESUMO Objetivo: pensata de natureza provocativa que procura promover reflexão e debate acerca da participação docente em bancas examinadoras de dissertações e teses em programas de pós-graduação em administração. Provocações: argumenta-se que os convidados mais performam uma espécie de espetáculo acadêmico durante as bancas do que analisam propriamente as dissertações e teses, e que isso é prejudicial à formação de pesquisadores. Conclusões: a formação do pesquisador deve ser o centro das atenções. É um equívoco que particularidades, idiossincrasias e vaidades obscureçam a realização de exames. A participação de docentes em bancas examinadoras é uma expressão significativa da prática docente e pode representar importante contribuição para a formação de pesquisadores. É preciso que ela não seja tomada como algo dado, tampouco perpetuada como um espetáculo onde se reúnem convidados ilustres.
Using Deep Learning Language Models as Scaffolding Tools in Interpretive Research
Authors: Fonseca André Luis Araujo da , Chimenti Paula Castro Pires de Souza , Suarez Maribel Carvalho
Published: May 2023

ABSTRACT Objective: the paper introduces a framework for conducting interpretive research using deep learning algorithms that blur the boundaries between qualitative and quantitative approaches. The work evidences how research might benefit from an integrated approach that uses computational tools to overcome traditional limitations. Proposal: the increased availability and diversity of data raises the utility of algorithms as research tools for social scientists. Furthermore, tuning and using such computational artifacts may benefit from interpretive procedures. Such circumstances turn the traditional debate between quantitative and qualitative research on its head: the research strategy that likely yields the most assertiveness and rigor is the one that may require vigorous hermeneutic effort. Along these lines, neural word embeddings can be instrumental in allowing researchers to read the data closely before and after interpretation. Conclusions: to take advantage of the opportunity generated by these new algorithms, researchers may broaden their previous conceptions and adopt a participative point of view. In the coming decades, the interweaving of computational and interpretive methods has the potential to integrate rigorous social science research.
Incidence and time until the first traction or obstruction of the nasoenteral tube in hospitalized adults
Authors: Anziliero Franciele , Nora Carlise Rigon Dalla , Beghetto Mariur Gomes
Published: May 2023

ABSTRACT Objective: To determine incidence and time until first traction or obstruction of nasoenteral tube in hospitalized adults. Methods: Prospective double cohort study that included 494 adults who were users of nasoenteral tubes as inpatients in two clinical units and two surgical units in a teaching hospital. The occurrence of tube tractions and obstructions was monitored daily between 2017 and 2019. The Kaplan-Meier method was used to estimate time until the first event. Results: Tube traction occurred in 33% of the sample, and the incidence of the event was higher on the first five days of tube use. Tube obstruction incidence was 3.4% and grew as tube use time increased. Conclusion: Traction incidence was higher at the beginning of the period of use, whereas obstruction incidence grew as tube use time increased.
The mental health of nurses who are women and mothers during the COVID-19 pandemic
Authors: Duarte Maria de Lourdes Custódio , Silva Daniela Giotti da , Mattos Larissa Gomes de , Bombardi Isadora Prates , Almeida Thayná de , Garcia Yanka Eslabão , Verginio Bruna Gottlieb
Published: May 2023

ABSTRACT Objective: To reflect on the mental health of nurses who are women and mothers in the context of the COVID-19 pandemic. Method: Theoretical-reflective study based on scientific literature, supported by national and international scientific literature, in addition to a critical analysis by the authors. Results: Reflections on the subject go beyond the impact of motherhood on these women's lives, as it portrays a gender issue and the role of women within society. The stress of working on the frontlines of a pandemic, added to the demands of children and housework, can trigger exhaustion and mental health repercussions. Conclusion: Workers must seek individual measures and health managers must enable collective strategies in the work environment of the institutions, proposing public policies that make both employers, workers and their families co-responsible.
Micropropagation of Vellozia seubertiana (Velloziaceae)
Authors: Pinto Dinah I. J. G. C. , Lima-Brito Alone
Published: May 2023

ABSTRACT Velloziaceae is one of the main families in the floristic composition of the Campos Rupestres Montane Savanna ecoregion of the Chapada Diamantina Highland, Bahia, Brazil, and has species with significant ornamental potential and resistance to climate changes. The species Vellozia seubertiana stands out for its beautiful flowers and stems covered by leaf sheaths that ensure protection when in contact with fire. However, there is no information on its propagation, conservation, and physiology, which justifies this study. The objective of this work was to establish a micropropagation protocol for V. seubertiana. Seeds were disinfected and inoculated in Murashige and Skoog culture medium (MS) with half salt concentration (MS½) for in vitro establishment. Plantlets established in vitro were used to induce sprouting in MS½ supplemented with 6-benzylaminopurine (BAP; 0.00, 4.44, 8.88, and 17.76 µM) and 1-naphthaleneacetic acid (NAA; 0.00 and 2.22 µM). The shoots obtained were inoculated in MS½ containing activated charcoal (0.0 and 1.0 g L−¹) and indole-3-butyric acid (IBA; 0.00 and 2.22 µM) for rooting. The rooted plantlets were acclimated under greenhouse conditions. A mean of 5.7 shoots were generated through organogenesis in medium containing 8.75 µM of BAP and 2.22 µM of NAA. The use of activated charcoal resulted in the highest means for aerial part and root lengths in the in vivo rooting phase. Acclimated plants reached 75% survival at 60 days after transplanting to ex vitro conditions. The results indicate that micropropagation is a promising technique for the production of V. seubertiana seedlings.
Changes On Soil Microbiota Induced By The Use Of Commercial Products And The Incorporation Of Plant Materials
Authors: Borges Darlan F. , Nogueira Geovane de A. , Cruz Gisellya de A. , Silva Shamyra G. de A. , da Silva Washington L. , Ambrósio Márcia M. de Q.
Published: May 2023

ABSTRACT Growers have adopted monoculture to maintain the high melon (Cucumis melo L.) production demand in the Northeastern region of Brazil. This cultivating practice culminates in up to three crop cycles per year being used in the same growing area. The main objective of this study was to evaluate if the incorporation of plant material used with polyethylene mulch and or in association with commercial soil amendment products can help to condition an environment that is beneficial to soil microbial communities. Two identical greenhouse experiments were conducted using a completely randomized design with seven treatments and seven replications. The treatments were: (C) – Control, (M) - polyethylene mulch, (C+M) - incorporation of Crotalaria juncea L. + polyethylene mulch, (P+M) - incorporation of Pennisetum glaucum L. + polyethylene mulch, (M+CS) - polyethylene mulch + (Compost-Aid® + Soil-Set®, trade names of products produced by Alltech Crop Science), (C+M+CS) - incorporation of C. juncea L. + polyethylene mulch + (Compost-Aid® + Soil-Set®), and (P+M+CS) - incorporation of P. glaucum L. + polyethylene mulch + (Compost-Aid® + Soil-Set®). To quantify the target soil microbiota (fungi, bacteria, sporulating bacteria, and actinomycetes), isolations were attempted on selective culture media specific for each group of microorganisms. The incorporation of P. glaucum together with the use of polyethylene mulch and commercial products (Compost-Aid® and Soil-Set®), (P+M+CS), increased the total fungal population by 183%, total bacteria by 55%, sporulating bacteria by 21%, and actinomycetes by 146% in relation to the control treatment.
Genetic parameters and selection indices of cowpea genotypes for green grain production
Authors: Pessoa Angela M. dos S. , Bertini Cândida H. C. de M. , Castro Érika B. de L. , de Freitas Leslyene M. , Araújo Linda B. R.
Published: May 2023

ABSTRACT Cowpea is a legume that is grown worldwide and used for different purposes, especially as green grains. However, considering the low availability of cowpea cultivars for green grain production, selecting genotypes that have better traits for this purpose is necessary. In this context, the objective of this study was to estimate genetic parameters and evaluate different selection indices for identifying superior cowpea genotypes and subsidizing cowpea breeding programs focused on green grain production. A field experiment was conducted at the Center of Agricultural Sciences of the Federal University of Ceará (UFC), Ceará, Brazil. The treatments consisted of 42 cowpea genotypes from the Active Germplasm Bank of the UFC. Fourteen traits were used for characterization. The experiment was conducted in an augmented block design with four controls. The data obtained were subjected to analysis of variance, and genetic parameters, correlations, and selection indices were determined. The traits days to flowering (DFL), days to fruiting (DFR), green pod weight (GPW), green pod width (GW), green pod length (GPL), green pod thickness (GPT), number of grains per pod (NGP), and green grain thickness (GGT) showed heritability higher than 70%, indicating that selection in an early generation is favorable. The genetic correlations between the trait pairs DFL×DFR, GPW×GPL, and GW×GGT were higher than the phenotypic and environmental correlations. Genotypes CE-228, CE-688, CE-994, CE-165, CE-796, and BRS-Paraguaçu showed simultaneous superiority for the evaluated traits and are the most appropriate for green grain production.
Use of multifunctional microorganisms in corn crop
Authors: Cruz Dennis R. C. , Silva Mariana A. , Nascente Adriano S. , de Filippi Marta C. C. , Ferreira Enderson P. de B.
Published: May 2023

ABSTRACT In the composition of the soil microbiome, there are numerous microorganisms capable of promoting plant growth, better known as plant growth-promoting microorganisms. The study aimed to determine the effects of multifunctional microorganisms, alone or in combination, on shoot, root, and total biomass production, gas exchange, macronutrient content, yield components, and grain yield of corn plants. The experiment was carried out in a greenhouse in a completely randomized design, with four replications. Twenty-six treatments consisted of isolated or combined microbiolization of corn seeds with the rhizobacteria Bacillus sp. (BRM 32109, BRM 32110, and BRM 63573), Burkholderia cepacea (BRM 32111), Pseudomonas sp. (BRM 32112), Serratia marcenses BRM 32113, Serratia sp. (BRM 32114), Azospirillum brasilense (Ab-V5), and Azospirillum sp. (BRM 63574), an isolated of fungus Trichoderma koningiopsis (BRM 53736), and a control treatment (without the application of microorganisms). At seven and 21 days, two more applications of the same treatments were carried out in the soil and the plants, respectively. The microorganisms applied alone or in combination promoted significant increases of 49% in corn plant biomass, 30% in gas exchange, 36% in macronutrient content, and 33% in grain yield. Isolates BRM 32114, Ab-V5, BRM 32110, and BRM 32112 and the combinations BRM 32114 + BRM 53736, BRM 63573 + Ab-V5, and BRM 32114 + BRM 32110 promoted better benefits to corn, allowing us to infer that the use of beneficial microorganisms significantly affects the development of corn plants.
Does high onion plant density increase nitrogen demand?
Authors: Vidigal Sanzio M. , Moreira Marialva A. , Paes José M. V. , Pedrosa Marinalva W.
Published: May 2023

ABSTRACT An adequate N supply is essential for plant growth, and changing plant density increases nitrogen demand. The objective of this work was to evaluate the effect of top-dressing nitrogen fertilization on quality and yield of onions grown under three plant densities. The experiment was conducted from June to October, in Oratórios, state of Minas Gerais, Brazil, using the hybrid Superex. A randomized block experimental design was used, with a split-plot arrangement and four replications. N rates (0, 60, 120, and 240 kg ha-1) were evaluated in the plots and plant densities (40 plants m-2 - one seedling per cell; 80 plants m-2 - two seedlings per cell; and 120 plants m-2 - three seedlings per cell) were evaluated in the subplots. The yield found for the treatment with 80 plants m-2 and 171 kg ha-1 of N was 51.28 Mg ha-1 of marketable bulbs, with approximately 75% class 3 and 17% class 4 bulbs. Bulb weight decreased with increasing plant density. Top-dressing nitrogen fertilization increases the quality and yield of onions, regardless of the plant density. The highest yield was found when using 80 plants m-2 and 240 kg ha-1 of N. A density of 80 plants m-2 (two seedlings per cell) and 171 kg ha-1 of N is recommended when intending to obtain class 3 and 4 bulbs.
Technical and economic indicators of papaya crops for the production factors water and organic compost
Authors: Pinto Caio S. , Costa Raimundo N. T. , de Sousa Alan B. O. , de Almeida Antônio V. R. , Magalhães José W. O.
Published: May 2023

ABSTRACT The objective of this study was to analyze technical and economic indicators of responses of papaya (Carica papaya L.) to the production factors water and organic compost, in a rural property with characteristic of family farming in the Semiarid region of Brazil. The study was conducted from August 2019 to July 2020, in the first crop cycle, in the municipality of Pentecoste, Ceara, Brazil. A Formosa papaya crop (cultivar Tainung 1) was established with spacing of 2.5 × 2.5 m, and irrigated by a micro-sprinkler localized system. A randomized block design was used, with a split-plot arrangement and four replications. The primary treatments consisted of four irrigation water depths (60%, 80%, 100%, and 120% of the crop evapotranspiration), and the secondary treatments consisted of four organic compost rates (0%, 50%, 100%, and 150% of the required rate for the crop). The irrigation water productivity of 5.38 R$ (BRL) m-3, related to the requirements of the production factors, on average, is five-fold the reference value for papaya crops under conventional production system. Rural credit allows the farmer to reach a social reproduction level with a papaya crop area that can be, on average, half of that needed under conditions without financing.
Hydrogen peroxide in the acclimation of colored-fiber cotton genotypes to salt stress
Authors: Veloso Luana L. de S. A. , de Azevedo Carlos A. V. , Nobre Reginaldo G. , de Lima Geovani S. , da Silva Idelvan J. , de Lacerda Cassiano N.
Published: May 2023

ABSTRACT The excess of salts in irrigation water restricts agricultural exploitation in arid and semi-arid regions. Thus, searching for strategies of cultivation under salt stress conditions is important for the expansion of irrigated agriculture in these regions. Thus, the objective of this study was to evaluate the gas exchange and growth rates of naturally colored-fiber cotton genotypes irrigated with saline water and under exogenous foliar application of hydrogen peroxide concentrations. The experiment was carried out under greenhouse conditions, in Campina Grande - PB, using the randomized block experimental design and 4 × 3 × 2 factorial arrangement, with four concentrations of hydrogen peroxide - H2O2 (0, 25, 50, and 75 µM), three colored-fiber cotton genotypes - CG (BRS Rubi; BRS Topázio; BRS Verde) and two levels of electrical conductivity of water - ECw (0.8 and 5.3 dS m-1), with three replicates. Irrigation using water with electrical conductivity of 5.3 dS m-1 associated with foliar application of 50 µM of hydrogen peroxide favors gas exchange and growth rates of BRS Rubi cotton, at 60 days after sowing. Salinity of 5.3 dS m-1 associated with foliar applications of 50 µM of hydrogen peroxide increased the percentage of cell damage and the internal CO2 concentration, but reduced the stomatal conductance, transpiration, CO2 assimilation rate, and growth rates of BRS Topázio cotton.
Phosphate fertilization and critical leaf phosphorus content for okra
Authors: Souza Arilson de J. F. , Wamser Anderson F. , da Silva Vitor B. , Nascimento Sandra M. C. , Grangeiro Leilson C. , Cecílio Filho Arthur B.
Published: May 2023

ABSTRACT The objective of this study was to evaluate the growth and yield of okra as a function of phosphorus (P) doses and to obtain the critical leaf P content, under the edaphoclimatic conditions of Maranhão (MA), Brazil. The field experiment was carried out from February 15, 2017, to May 9, 2017, in São Luís, MA. The experimental design was randomized blocks, with four replications. The treatments were doses of 0, 80, 160, 240 and 320 kg ha-1 of P2O5, in the form of triple superphosphate, at planting, plus 10 t ha-1 of solid cattle manure. The increase of the P dose increased plant height, leaf dry mass and stem dry mass. With phosphorus supply, flowering occurred earlier than in plants without fertilization. Considering soils with low P content (P(resin) = 11 to 25 mg dm-3) and the minimum recommended organic fertilization for the okra crop of 10 t ha-1 of solid cattle manure, the maximum number of fruits, length of fruit and yield (9960.36 kg ha-1) were obtained with the fertilization of 80 kg ha-1 of P2O5, for the edaphoclimatic conditions of MA, Brazil. The critical leaf P content in okra is 3.4 g kg-1.
Uncertainty in groundwater recharge estimation using groundwater level fluctuation and aquifer test
Authors: Penner Giovanni Chaves , Martins Rubens Takeji Aoki Araujo , Rodrigues Salim , Wendland Edson
Published: May 2023

ABSTRACT For sustainable groundwater management the rate of groundwater recharge and specific yield are both of the most important elements in the analysis and management of groundwater resources, and, sometimes, estimation of these parameters remains a challenge. This research presents a combining approach of the water-table fluctuation method (WTF) with an aquifer test to estimate both and quantify their uncertainty. The methodology requires at least three wells: two instrumented observation wells with a level sensor for long-term monitoring and a pump well located nearby for aquifer testing. The test interpretation was supported by the Aqtsolv Demo software obtaining the best fit with the method proposed by Tartakovsky-Neuman, with a specific yield varying, in 2σ, between 9.4% and 10.6%. Recharge was estimated with WTF, and the uncertainty in recharge is obtained by propagating the uncertainties about the specific yield (Bayesian inference) and the groundwater recession dynamics to the WTF. The uncertainty about recharge stems from uncertainty about the specific yield. The approach was applied on the campus of the Federal University of Pará, Belém, Brazil. Recharge was estimated at 1078.9 mm, from 03/sep/2020 to 30/sep/2021, with an associated uncertainty of 129.5 mm in 2σ, which equates to a range between 33.9 and 39.8% in terms of precipitation. Through the use of cost-effective instrumentation and interpretation methodology, replication of that approach can be encouraged to provide reliable estimates of recharge and specific yield in a site specific. Such condition can be useful to reduce the predictive uncertainty of groundwater management.
Data imputation of water quality parameters through feed-forward neural networks
Authors: Peixoto Luis Otávio Miranda , Lima Bárbara Alves de , Almeida Camila de Carvalho , Fernandes Cristóvão Vicente Scapulatempo , Centeno Jorge Antonio Silva , Azevedo Júlio César Rodrigues de
Published: May 2023

ABSTRACT The constant monitoring of water quality is fundamental for the understanding of the aquatic environment, yet it demands great financial investments and is susceptible to inconsistencies and missing values. Using a database composed of 59 sampling campaigns, performed for 12 years, on 10 monitoring stations along the Iguassu River Basin (Southern Brazil), this study presents a model, based on feed-forward neural networks, which imputed 1,370 values for 11 traditional water quality parameters, as well as 3 contaminants of emerging concern (caffeine, estradiol and ethinylestradiol). The model validation errors varied from 0.978 mg L-1 and 0.017 mg L-1 for the traditional parameters, for caffeine the validation error was of 0.212 µg L-1 and for the hormones, the errors were of 0.04 µg L-1 (E1) and 0.044 µg L-1 (EE1). The models underwent two techniques to understand the operations performed within the model (isolation and nullification), which were consistent to those explained by natural processes. The results point to the validity of modeling water quality parameters (especially the concentrations of caffeine) through neural networks, which could lead to better resource allocation in environmental monitoring, as well as improving available datasets and valuing previous monitoring efforts.
FORMAÇÃO DE PROFESSORES E PROMOÇÃO DA COMPETÊNCIA DIGITAL DOS SEUS APRENDENTES: UMA EXPERIÊNCIA EM TEMPOS DE TRANSIÇÃO DIGITAL
Authors: Cruz Elisabete , Fradão Sandra , Viana Joana , Rodriguez Carla
Published: May 2023

RESUMO Procura-se compreender como a formação de professores em proficiência digital pode levar, simultaneamente, à promoção das competências digitais dos alunos. Adotando uma matriz de investigação qualitativa, recorreu-se à explicitação da prática formativa e à análise das narrativas dos professores-formandos para analisar uma experiência de formação enquadrada no Plano de Capacitação Digital de Docentes do sistema educativo português. Os resultados destacam o diagnóstico inicial e a experimentação ativa como estratégias potencialmente relevantes para a promoção da competência digital dos alunos.
O ENSINO DE COMPUTAÇÃO PARA ALÉM DOS MUROS DA ESCOLA: ANÁLISE CRÍTICA DOS CAMINHOS NO BRASIL E NO REINO UNIDO
Authors: Menezes Stefane Vieira , Piccolo Lara
Published: May 2023

RESUMO Muitas barreiras que há décadas obstruem o avanço igualitário do ensino da computação nas escolas não são exclusivas à realidade brasileira. Como contraponto, neste artigo, olha-se para o contexto do Reino Unido e para as necessidades de transformação também identificadas no ensino de computação para crianças em idade escolar no país. Diante dessa análise, propõe-se uma visão atualizada para o ensino de computação que é mais ampla no conceito de artefato tecnológico em vez do computador visto apenas como um meio no qual são usados recursos pedagógicos, que privilegia o design e as demandas do contexto de uso em vez do foco na lógica, no algoritmo ou na programação e se relaciona com diversas áreas do conhecimento. Ao final, sugestões simples são deixadas aos professores que têm a intenção de ensinar computação de forma que as crianças percebam a tecnologia como parte do seu contexto social e consigam criar soluções para problemas reais presentes no cotidiano delas.
EXPLORANDO A MATEMÁTICA E O PENSAMENTO COMPUTACIONAL COM ATIVIDADES (DES)PLUGADAS COM CRIANÇAS DE 6 A 9 ANOS DE IDADE
Authors: Sassi Sabrina Bourscheid , Maciel Cristiano , Pereira Vinícius Carvalho
Published: May 2023

RESUMO Este artigo apresenta uma pesquisa exploratória, com abordagem qualitativa, de uso de atividades (des)plugadas para o ensino de conceitos da computação e da matemática durante o isolamento social por causa da pandemia de Covid-19. O objetivo desta pesquisa foi analisar o uso de tais atividades como recursos didáticos complementares em contexto de ensino remoto para o desenvolvimento de habilidades do pensamento computacional e de matemáticas com crianças de 6 a 9 anos. Os resultados indicaram grande participação das crianças e aceitação das atividades desplugadas tanto pelas crianças quanto pela família.
Gastrointestinal parasites of wild carnivores from conservation institutions in the Cerrado of Goiás, Brazil
Authors: Moreira Renan Mendes Pires , Aires Caroline Genestreti , Alves-Sobrinho Ana Vitória , Moraes Iago de Sá , Moreira Cecília Nunes , Amaral Andréia Vitor Couto do , Saturnino Klaus Casaro , Braga Ísis Assis , Pacheco Richard de Campos , Ramos Dirceu Guilherme de Souza
Published: May 2023

Abstract Increased interaction between wild and urban environments owing to human population growth, increased anthropization of biomes, and habitat loss for wild animals increases the spread of infectious and parasitic agents. The present study reports on the occurrence of gastrointestinal parasites in carnivorous mammals at two conservation institutions in the state of Goiás, Brazil. Fecal samples from 39 adult carnivores were collected after spontaneous defecation and analyzed by flotation and sedimentation. The structure and management data of each institution were recorded. Parasitism prevalence, binomial confidence intervals (CI) at 95%, variables associated with the presence of contact animals, size of the enclosure and type of food were recorded. The overall prevalence of gastrointestinal parasites in the samples analyzed was 71.8% (CI 55.1–83.0; 28/39). Ancylostomatidae, Toxocara spp., Toxascaris leonina, Strongyloides spp., Calodium hepaticum, and Trematoda eggs, and Cystoisospora spp. oocysts were detected. Environmental conditions were not correlated with parasitism prevalence; however, the parasites found could be managed, considering their biology, such as controlling synanthropic and domestic animals in captivity, feeding with healthy feed.
Cyclic response of stereoscopic geogrid–sand interface under static and cyclic loading
Authors: Zeng W. X. , Liu F. Y. , Ying M. J.
Published: May 2023

The investigation of cyclic shear response on a geosynthetic–soil interface is important for reinforced soil structures. A stereoscopic geogrid with a thickened transverse-rib thickness increases the interaction with the soil compared with a planar geogrid. In this study, three-dimensional printing technology was used to produce stereoscopic geogrids with transverse-rib thicknesses of 5, 10, 15 and 20 mm. The influences of different cyclic shear displacement amplitudes (1, 3, 6 and 10 mm) and normal stresses (20, 40 and 60 kPa) on the direct shear tests under static and cyclic loading at the stereoscopic geogrid–sand interface were investigated. The results indicate that the maximum shear stress can be improved by the stereoscopic geogrid at larger cyclic shear displacement amplitudes. The effect of transverse-rib thickness on the fitted curves of the normalised interface shear stiffness and damping ratio was reversed. The cyclic shear process altered the relationship between apparent cohesiveness and transverse-rib thickness. The peak stress ratio of the stereoscopic geogrid–sand interface is proposed as a function of the transverse-rib thickness and maximum dilation angle.
ACTIVIDADES FÍSICAS Y DEPORTIVAS EN EL NIVEL UNIVERSITÁRIO
Authors: Fedoruk Hubar  , Sandra Raquel
Published: May 2023

La presente investigación surgió debido a que, numerosos estudios han demostrado los beneficios de la actividad física en el individuo en cuanto a su salud mental, física y emocional. Motivo por el cual el objetivo principal fue: Describir el desarrollo de la actividad física y deportiva de los universitarios; con el fin de contribuir a la elaboración de capacidades acordes a la realidad nacional que permita mejorar la calidad de vida de los mismos y potenciar este tipo de actividades a nivel universitario. La metodología tuvo un enfoque cuantitativo, de diseño no experimental de tipo descriptivo. La población estudiada involucro a 60 alumnos de la carrera de Derecho e Ingeniería Comercial, de la Universidad Nacional de Itapúa, año 2015, donde el muestreo fue probabilístico con nivel de confianza del 95% y margen de error del 5%. Las técnicas e instrumentos utilizados fueron encuestas a través de cuestionarios con preguntas cerradas y estructuradas de opción múltiples. Los resultados arrojaron que en el género masculino practican más actividades deportivas que físicas, por condiciones sociales, en cambio en el género femenino practican más actividades físicas en gimnasios que actividades deportivas. Concluyéndose que existen diferencias significativas entre los motivos de práctica, en función del género. Para los hombres los motivos de práctica están vinculados a la competición, la capacidad personal, la aventura y las relaciones sociales. Para las mujeres los motivos más valorados, son los relacionados con la forma física, la salud y la imagen personal.
ПЕРСПЕКТИВЫ РАЗВИТИЯ ЭЛЕКТРОННОЙ КОММЕРЦИИ В СОВРЕМЕННЫХ РЫНОЧНЫХ УСЛОВИЯХ
Authors: Батищев Александр Витальевич , Фетюхина Ольга Николаевна , Фетюхин Вадим Игоревич
Published: May 2023

Целью исследования является рассмотрение основных тенденций развития системы E-commerce, направлений их использования на основных площадках маркетплейсов субъектами предпринимательства в современных рыночных условиях, описание преимуществ цифровых технологий ведения бизнеса перед использованием традиционных расчетов.

Методологическую базу исследования представляют теоретические аспекты применения различных методов ведения бизнеса субъектами предпринимательства в системе E-commerce, а также многочисленные данные, полученные в результате практических исследований консалтинговых агентств и маркетплейсов.

Результаты исследования показывают, что доля онлайн-продаж от общего объема розничной торговли в России выросла за последние несколько лет. Пандемия коронавируса ускорила эту тенденцию. Драйверами роста электронной коммерции как в России, так и во всем мире, являются маркетплейсы, на площадках которых могут развивать свой бизнес предприятия малых форм собственности, работая с собственными торговыми марками, а также продавая уникальный продукт.

Перспективы исследования представляют сопоставление глобальных и федеральных трендов, касающихся реализации основных направлений развития системы E-commerce предприятиями малого и среднего бизнеса на основных площадках маркетплейсов.
СОВРЕМЕННЫЕ ТЕНДЕНЦИИ БЕДНОСТИ И СОЦИАЛЬНОГО НЕРАВЕНСТВА
Authors: Попова Екатерина Анатольевна , Альпидовская Марина Леонидовна
Published: May 2023

Целью исследования является изучение бедности и социального неравенства в мире, включая особенности возникновения и выявление возможного предотвращения заявленных проблем. Достижение поставленной цели предполагает следующие поставленные задачи: рассмотреть особенности и причины возникновения бедности на примере стран Европы и Африки, обобщить предложенные методы и заключительные выводы в части исследуемой темы на примере оценочных суждений различных авторов.

Методологию исследования составляют сравнительный анализ, аналогия, метод индукции и дедукции, включая постановку проблему и обобщение.

Результаты исследования. Понятия бедности и социального неравенства изучались и изучаются до сих пор. Так, с каждым очередным исследованием возникают всё новые факторы и причины появления нерешённых проблем. Было доказано, что государство должно применять важные стратегические рычаги, которые бы способствовали эффективному управлению экономикой в части правовой, финансовой и социальной защищённости каждого человека.

Перспектива исследования заключается в решении проблемы между сокращением неравенства и искоренением крайней нищеты. Данный вопрос будет оставаться актуальным до тех пор, пока бедность во всём мире продолжает выступать основополагающим ограничителем многих возможностей человека, а именно — уверенности в величине приемлемой оплаты своего труда, как физического, так и умственного, бесплатной и доступной специализированной помощи, услугах образовательного процесса, включая адаптацию и здоровое воспитание будущего поколения.