bluuebunny/crossref_metadata_2025 huggingface dataset:
MODELING OF IEEE 802.11 COMPUTER NETWORKS OPERATION AT INCREASED INTERFERENCE INTENSITY
Authors: Khandetskyi V. S. , Karpenko N. V.
Published: July 2022

Context. High level of industrial noise increases the loss of information frames during transmission, which in turn decreases the network throughput. We propose a mathematical model of IEEE 802.11 networks operation under conditions of increased interference intensity.
Objective. The purpose of this paper is to express in an explicit analytical form the effect of bit error rate (BER) on the probability of frame transmission and the network throughput.
Method. We have proposed the method for constructing a model that allows you to directly calculate the dependence of the frame transmission probability on the number of stations operating in saturation mode, which is convenient for engineering calculations. The values of the model coefficients were selected by comparing the calculation results with the results obtained using the known Bianchi model, which describes the network operation in the form of a Markov process. In the range of up to 23 stations working with one access point, which corresponds to a collision probability of up to 0.5, the indicated dependences for both models satisfy each other with an accuracy sufficient for the practical application. An expression for the network throughput has been defined.
Results. The results of the model development were used to take into account the effect of interference intensity on the information transfer process. This made it possible to explicitly express the effect of BER on the probability of frame transmission and the network throughput in the case of variations in the length of the frames and with a different number of competing stations. The degree of throughput reduction has been determined for BER = 10–5, 5∙10–5, 10–4 and increasing value of minimum contention window.
Conclusions. In this work, a mathematical model has been developed for direct calculation of the probability of frame transmission and network throughput at different levels of BER.
MODEL OF THE PROCESS OF GEOSPATIAL MULTI-CRITERIA DECISION ANALYSIS FOR TERRITORIAL PLANNING
Authors: Kuznichenko S. D.
Published: July 2022

Context. The process of multi-criteria decision analysis for territorial planning and rational placement of spatial objects, based on modeling the properties of the territory, is considered.
Objective. Development of technology for multi-criteria decision analysis for territorial planning based on the apparatus of the theory of fuzzy sets and functions of geoinformation analysis.
Method. An object-spatial approach to the formation of a set of alternatives and criteria is proposed, according to which the process of multicriteria decision analysis is divided into two stages: macro- and microanalysis.The macroanalysis stage involves the assessment of the ecological and socio-economic properties of the territory using geomodeling functions. The paper provides a formalized description of the macroanalysis stage, including methods for assessing the qualitative and quantitative impact of spatial objects on the properties of the territory and decomposing objects into thematic layers of criteria. At the stage of microanalysis, the ranking of alternatives is performed taking into account the chosen decision-making strategy. The method of standardization of criteria attributes using fuzzy set membership functions and the modification of the method for calculating the coefficients of relative importance (weights) of criteria, taking into account the spatial heterogeneity of the preferences of the decision maker, are considered. A comparative analysis of the methods for aggregating the estimates of alternatives according to different criteria has been carried out. A feature of the presented technology of geospatial multi-criteria decision analysis of decisions for territorial planning is the possibility of its integration into modern geographic information systems.
Results. The procedure of geospatial multi-criteria decision analysis was implemented in the environment of the geographic information system ESRI ArcGIS 10.5 and was studied in solving the spatial problem of rational location of an enterprise.
Conclusions. The proposed object-spatial approach to multi-criteria decision analysis makes it possible to explicitly take into account the spatial heterogeneity of geographic data, which is the result of the influence of geographic objects on the properties of the territory. The developed technology can be used to solve a wide range of problems related to determining the most rational placement of various capital construction and infrastructure facilities.
EFFECTIVENESS OF STEGO IMAGE CALIBRATION VIA FEATURE VECTORS RE-PROJECTION INTO HIGH-DIMENSIONAL SPACES
Authors: Progonov D. O.
Published: July 2022

Context. The topical problem of sensitive information protection during data transmission in local and global communication systems was considered. The case of detection of stego images formed according to novel steganographic (embedding) methods was analyzed. The object of research is special methods of stego images features pre-processing (calibration) that are used for improving detection accuracy of modern statistical stegdetectors.
Objective. The purpose of the work is performance analysis of applying special types of image calibration methods, namely divergent reference techniques, for revealing stego images formed according to adaptive embedding methods.
Method. The considered divergent reference methods are aimed at search an appropriate transformation for cover and stego images features that allows increasing Euclidean distance between them. This can be achieved by re-projection of estimated features into a high-dimensional space where cover and stego features may have higher inter-cluster distances. The work is devoted to analysis of such methods, namely by applying the inverse Fast Johnson-Lindenstrauss transform for estimation preimages of cover and stego images features. The transform allows considerably decreasing computation complexity of features calibration procedure while providing a fixed level of relative positions changes for cover and stego images features vectors, which is of particular interest in steganalysis.
Results. The dependencies of detection accuracy, namely Matthews correlation coefficient, on cover image payload and dimensionality of estimated preimages for feature vector were obtained. The case of usage state-of-the-art HUGO, S-UNIWARD, MG and MiPOD embedding methods for message hiding into a cover image was considered. Also, the variants of stego image features preprocessing by full access to stego encoder for a steganalytic as well as limited a prior information about used embedding method were analyzed.
Conclusions. The obtained experimental results proved effectiveness of proposed approach in the most difficult case of limited a prior information about used embedding method and low cover image payload (less than 10%). The prospects for further research may include investigation of applying special methods for features preimages estimation in a high-dimensional space for improving detection accuracy for advanced embedding methods.
Re-reading both Hegel and Marx: The “new dialectics” and the method of Capital
Authors: SAAD FILHO ALFREDO
Published: July 2022

ABSTRACT The “new dialectic” offers a new interpretation of Marx’s method. Its most salient feature is the emphasis on certain aspects of Hegelian logic for the interpretation of Marx’s writings, especially The Capital. This article systematically presents the “new dialectic” argument and the main problems with this approach. The latter derive from the assumption that the richness of the concrete is contained in the commodity and can be revealed only through dialectics. This view is deficient because it neglects the influence of historically contingent elements on concrete reality, and its role in Marx’s analysis.
Um quadro teórico alternativo para as interações Estado-economia nas economias em processo de transformação
Authors: DELORME ROBERT
Published: July 2022

RESUMO Este artigo parte da premissa de que estruturas de representação e visões de mundo são importantes para reflexão e decisão na formulação de políticas econômicas, tornando-se mais importantes à medida que as apostas são altas e o futuro é incerto, como nos países da Europa Central e Oriental. Parece haver um sentimento crescente de discrepância entre os erros cometidos, embora baseados em um corpo bastante unificado de teoria econômica científica, e pontos de vista diferentes que defendem mais pragmatismo e menos excesso de confiança na análise econômica. Estas últimas, entretanto, estão dispersas e sofrem com a ausência de uma estrutura teórica unificada, embora compartilhem várias características básicas que não são percebidas. Este artigo tenta refletir sobre essa alternativa.
Price trends of Agave Mezcalero in Mexico using multiple linear regression models
Authors: Cruz-Ramírez Angel Saul , Martínez-Gutiérrez Gabino Alberto , Martínez-Hernández Alberto Gabino , Morales Isidro , Escamirosa-Tinoco Cirenio
Published: July 2022

ABSTRACT: This study developed a multiple linear regression model to estimate the Average rural prices (ARP) in Mexico with information taken from the period 1999-2018. The variables used to generate this model were the supply and demand as represented by planted area, yield, exports and the ARP of Agave Tequilero and Mezcalero. The analysis was carried out through the multiple linear regression model (MLRM) with the least squares method and using the statistical package R. The following variables were identified as having a significant influence on the determination of the ARP: the yield of Agave Mezcalero (YAM), the ARP of Agave Tequilero and the new planted area of Agave Tequilero (NPAATt-6) with an adjustment of 6 periods. Overall, three models were generated: model 2 was considered the most appropriate because it allows carrying out future forecasts with the new planted area with Agave Tequilero with 2 independent variables. YAM and NPAATt-6 were useful in predicting 65.5% of the annual variations in the ARP and helped recognize the negative trend of the Agave price from 2020 to 2024. Therefore, the use of the MLRM to estimate the Agave ARP can be a useful tool in predicting the performance of this crop.
Self-care model and body image in adults after a bariatric surgery
Authors: Pineda-García Gisela , Serrano-Medina Aracely , Cornejo-Bravo José Manuel , Andrade-Soto Víctor Hugo , Armenta-Rojas Efraín , González-Sánchez Daniela Lilian
Published: July 2022

Abstract Objective: the aim of the present article was to test a self-care model explained by the relationship between self-efficacy, body image, obsessive-compulsive disorder, and depression in people with bariatric surgery in the city of Tijuana, Baja California, Mexico. Method: this was a correlational cross-sectional study carried out between August and December 2020. Validated instruments were administered to 102 participants to measure their self-care capacity, general self-efficacy, psychopathological symptoms, and body image perception and satisfaction. The variables of interest were analyzed using descriptive statistics and the Pearson and Spearman correlation coefficients were used to develop a model using path analysis. Result: a significant model was obtained with adequate goodness-of-fit indicators (chi-square χ2 (8) = 11.451, p = .177; root mean square error of approximation (RMSEA)= 0.000; goodness-of-fit index (GFI)= 0.965; comparative fit index (CFI)= 0.985; parsimonious normed fit index (PNFI)= 0.509, and Akaike information criterion (AIC)= 37.451). Self-efficacy (Zβ=0.294) and body image dissatisfaction (So= -0.376) were shown to influence self-care abilities while psychopathological symptoms influenced body dissatisfaction: obsessive-compulsive disorder (Zβ=0.370) and depression (Zβ=0.320). Conclusion: adequate levels of self-efficacy and body satisfaction predict a high capacity for self-care.
Association between Metabolic Syndrome and professional category: a cross-sectional study with Nursing professionals
Authors: Santana Amália Ivine Costa , Merces Magno Conceição das , D’Oliveira Júnior Argemiro
Published: July 2022

Abstract Objective: to evaluate the association of Metabolic Syndrome and its components among Primary Health Care Nursing professionals in the state of Bahia, Brazil, according to professional category. Method: a cross-sectional, population-based and multicenter study conducted with 1,125 Nursing professionals. The independent variable was the professional category, dichotomized into technical and higher education levels. The outcome was Metabolic Syndrome following criteria from the National Cholesterol Education Program Adult Treatment Panel III based on anthropometric measurements and blood samples. The statistical analysis was performed by calculating the prevalence ratios and using Pearson’s Chi-square test. Results: the prevalence of Metabolic Syndrome was higher in the technical level category (PR=1.64; CI=1.29 - 2.06; p≤0.01). When compared to Nurses, these professionals were older, had lower incomes, worked more on duty and performed less physical activity on a regular basis. Among the Nurses, the most prevalent component was altered cholesterol (40.5%) and among the Nursing Technicians/Assistants, it was abdominal obesity (47.3%). Conclusion: the association between the Nursing category and Metabolic Syndrome was evident, with higher occurrence among technical level professionals.
Teaching and learning of organizational improvisation: The value of theater in management learning
Authors: Barbosa Fernanda P. M. , Davel Eduardo P. B.
Published: July 2022

Abstract Purpose: This article aims to understand the implications of theatrical improvisation in the teaching and learning processes of organizational improvisation. Originality/value: Management constantly deals with changes and unforeseen events, as research on organizational improvisation has shown for more than two decades. However, managers are still trained to face stable situations and not those of organizational turbulence. Management educators lack teaching and learning options aimed at developing organizational improvisation skills. Design/methodology/approach: The research is based on theories about organizational improvisation, theater improvisation, and management teaching-learning. Several teaching and learning practices of organizational improvisation based on theatrical improvisation were analysed - practices of a curricular component of a Management undergraduate program carried out during six academic terms. The qualitative methodology was based on an artistic approach and several sources of information (short stories, theater, direct observation, press conferences, and documents). Findings: The results are categorized into organized implications between four synergies (logic of practice, practice of the narrative, the creativity, and corporeality) and three entropies (shame to practice, fear of making mistakes, and habit of dispersing) of the use of theatrical improvisation for teaching and learning organizational improvisation in the training of contemporary managers. The research results contribute to the advancement of knowledge about organizational improvisation, as they unfold a proposal for a more precise understanding of teaching and learning of organizational improvisation. This study also enhances the linkage between fields of knowledge (theater and management), increasing of the knowledge that contributes to the advancement of research and practice of teaching and learning organizational improvisation.
Ensino-aprendizagem da improvisação organizacional: O valor do teatro na educação em administração
Authors: Barbosa Fernanda P. M. , Davel Eduardo P. B.
Published: July 2022

Resumo Objetivo: O objetivo deste artigo é compreender as implicações da improvisação teatral nos processos de ensino-aprendizagem da improvisação organizacional. Originalidade/valor: A gestão lida, constantemente, com mudanças e imprevistos, como as pesquisas sobre improvisação organizacional revelam há mais de duas décadas. Entretanto, os gestores ainda são formados para enfrentar situações de estabilidade, e não as de turbulência organizacional. Carecemos de opções de ensino-aprendizagem voltadas para o desenvolvimento das habilidades de improvisação organizacional. Design/metodologia/abordagem: A pesquisa ancora-se em teorias sobre improvisação organizacional, improvisação teatral e ensino-aprendizagem da administração. Investigaram-se empiricamente várias práticas de ensino-aprendizagem da improvisação organizacional a partir da improvisação teatral, realizadas durante seis semestres letivos em um componente curricular de graduação em Administração. A metodologia qualitativa baseou-se em uma abordagem artística e em diversas fontes de informação (contos, teatro, observação direta, entrevistas coletivas e documentos). Resultados: Os resultados são categorizados em implicações organizadas em quatro sinergias (lógica da prática, praticar a narrativa, criatividade e corporeidade) e três entropias (vergonha de praticar, medo de errar e hábito de dispersar) do uso da improvisação teatral para o ensino da improvisação organizacional no contexto de formação de gestores contemporâneos. Os resultados da pesquisa representam uma contribuição para o avanço do conhecimento sobre improvisação organizacional, na medida em que inauguram uma proposta de compreensão mais precisa do ensino-aprendizagem da improvisação organizacional. Contribuem também para relacionar dois campos do conhecimento (teatro e administração) em prol de uma construção de conhecimento que colabora para o avanço da pesquisa e da prática do ensino-aprendizagem da improvisação organizacional.
Previsão do Consumo Agregado: o papel de índices de confiança do consumidor
Authors: Felini Patrícia , Gomes Fábio Augusto Reis , Soave Gian Paulo
Published: July 2022

Resumo Este artigo investiga se os índices de confiança do consumidor podem melhorar as projeções do consumo agregado no Brasil, levando em conta informações dos fundamentos econômicos contidas em defasagens de indicadores financeiros e das taxas de crescimento do PIB e do volume de crédito às famílias. Nesse contexto, permitimos estruturas de defasagens distintas entre os potenciais preditores do consumo, o que dá origem a um grande espaço de potenciais modelos. Usamos, então, técnicas de ponderação bayesiana de modelos como uma estratégia agnóstica para lidar com a inerente incerteza sobre o modelo. Esta abordagem nos permitiu investigar quais regressores podem ser considerados robustos. Os resultados sugerem que PIB, crédito às famílias, retorno do mercado acionário e indicadores de confiança dos consumidores apresentam um potencial preditivo robusto na análise dentro da amostra. Finalmente, os resultados fora da amostra sugerem um papel não desprezível para os índices de confiança do consumidor na previsão da taxa de crescimento do consumo agregado no Brasil, especialmente em horizontes de previsão curtos.
Diferencial salarial público-privado: Uma análise em painel de dados com a PNAD contínua entre 2016-2019
Authors: Mattos Enlinson , Sonoda Matheus Ribeiro , Wink Junior Marcos Vinicio
Published: July 2022

Resumo O presente artigo estima o diferencial salarial entre funcionários dos setores público e privado de 2016 a 2019, utilizando a Pesquisa Nacional por Amostra de Domicílio Contínua. Para avaliação do prêmio salarial, foram utilizados (i) regressões por mínimos quadrados e a decomposição por Oaxaca-Blinder convencional e (ii) análise em painel de efeitos fixos, considerando uma extensão do modelo de Oaxaca-Blinder para modelos em painel. Na metodologia transversal foi encontrada uma diferença de 62,3% favorável ao funcionário público, sendo que 75% possui explicação por variáveis observáveis. Os outros 25% representam efeitos de variáveis não observadas, ou seja, um diferencial não explicado de, aproximadamente, 12%. Já, quando consideramos os dados em painel, nossa decomposição aponta que 73% deste diferencial é explicado por efeitos fixos, 18% por características dos agentes e apenas 11% representado por variáveis não observáveis, o que implica um diferencial não explicado de aproximadamente 6%. Os resultados ainda indicam um aumento no percentual não explicado do diferencial ao longo do tempo.
A new genus of armored catfish (Siluriformes: Loricariidae) from the Greater Amazon, with a review of the species and description of five new species
Authors: Reis Roberto E. , Lehmann A. Pablo
Published: July 2022

Abstract A new genus of Hypopopomatinae armored catfish is described from the northern portions of South America, namely the Amazon, Orinoco and Guianan coastal drainages. The new genus is diagnosed from all remaining hypoptopomatines by having the canal cheek plate on the ventral surface of the head posteriorly elongated and contacting the cleithrum, in addition to other features that distinguish the new genus from specific genera. Five new species are described and 18 species currently allocated in Parotocinclus, Hisonotus, and Curculionichthys are transferred to the new genus and rediagnosed. Parotocinclus amazonensis and P. aripuanensis are considered junior synonyms of P. britskii. The secondary sexual dimorphism of the members of the new genus is detailed and illustrated. Morphological characters are used to delimit four phenotypic groups of species that might have phylogenetic significance, which still have to be properly tested. A key to the species is offered and diagnoses, illustrations, and distribution maps are provided for all species.
Maturation and germination of Trichosanthes cucumerina L. seeds
Authors: Silva Lorena de Souza , Gentil Daniel Felipe de Oliveira , Ferreira Sidney Alberto do Nascimento
Published: July 2022

Abstract: Trichosanthes cucumerina L. (Cucurbitaceae) is a traditional fruit vegetable grown by family farmers in the Amazon. This study aimed to evaluate seed maturation as a function of age and fruit morphological characteristics, and the effect of different temperatures on seed germination of accessions of the species. A completely randomized design was adopted in the maturation study, with five treatments (fruit age: 20, 30, 40, 50, and 60 days after anthesis - DAA) and four replications. Seed quality was evaluated through dry mass, water content, germination, and vigor variables, while the fruits were evaluated for physical characteristics and the number of seeds. A completely randomized design in a 3 (temperatures: 20, 25, and 30 °C) x 7 (accessions: PIN I, PIN II, TSA, MAO, UTB, ITA, and IMI) factorial scheme, with four replications was adopted in the study of germination temperatures. Seed quality was evaluated using germination and vigor tests. Seeds reach physiological maturity around 50 DAA. The fruits are partially or completely orange or reddish-orange in color at that time. The temperature of 30 °C favored the seed germination process, resulting in a higher percentage and germination rate.
An examination of the use of clinical trials as a source of information in scientific research
Authors: TRIGUEIROS Bárbara Adriana Ferreira dos Santos , ÁVILA Andréa Rodrigues , PIMENTA Fabricia Pires
Published: July 2022

Abstract: As part of the innovation process, clinical research generates valuable data to assess technological solutions in healthcare, linking scientific research and knowledge transfer to provide beneficial innovations for society. However, the generated clinical data do not appear to be adequately available to the scientific community and society. The present study seeks to analyze the effectiveness of databases of clinical records as a source of relevant information for scientific research. We conducted a comparative analysis of 27 correlations of clinical trials between three different technologies and their scientific articles by consulting two information sources. Making connections between the data from these sources proved to be challenging. In addition, a considerable time lag (40 months on average) was observed between the end of the study and the publication of the results. Among the completed studies, 56% had not published their results in any of the channels studied. In addition to the paucity of reported results, the poor publication record of clinical trials is further evident in the lack of information on these studies in scientific publications. Thus, databases of clinical records are a potential source of information and may come to represent a central tool in the search for new technological solutions in healthcare.
Seed pretreatment for control of powdery mildew infection on purple ipe micropropagation
Authors: Mamedes Talita Cristina , Chaibub Amanda Abdallah , Sousa Kellen Cristhina Inácio , Faria Maria Tereza , Gonçalves Letícia de Almeida , Filippi Marta Cristina Corsi de , Araújo Leila Garcês de , Sibov Sérgio Tadeu
Published: July 2022

Abstract Purple ipe (Handroanthus impetiginosus) is an important tree species in Cerrado biome conservation and very popular at the landscaping and urban afforestation. However, its micropropagation is affected by pathogens, such as Oidium sp. The aim this study was evaluate the efficiency of seed treatments in the control of powdery mildew of purple ipe obtained by micropropagation. The symptoms were observed during in vitro germination, a Koch’s postulates were performed for confirm the pathogenicity, colonization of the pathogen on the leaves was analyzed in optical and scanning microscopes and a scale to evaluate severity was proposed. Two experiments were realized to powdery mildew control using a completely randomized design, with 30 replicates. First experiment: Seeds were treated with ethanol (Et), chlorothalonil + thiophanate-methyl (C+TM), and sodium hypochlorite (NaOCl); second experiment: Seeds were treated with Et, NaOCl, C+TM, and neem oil. Disease severity and area under the disease progress curve (AUDPC) were assessed in both experiments. Disease symptoms and typical pathogen structures were observed, and the pathogenicity was confirmed. The disease severity was reduced by 30.78% in 1.5% neem oil for 10 min when compared with C+TM for 15 min. We conclude that neem oil can be a strategy sustainable for the control of powdery mildew in purple ipe in tissue culture.
Performance of native species in urban afforestation of public pathways in Lavras-MG, Brazil
Authors: Paiva Patrícia Duarte de Oliveira , Reis Michele Valquíria dos , Sousa Rafael de Brito , Ferraz Raiy Magalhães , Salgado Mariel de Carvalho Raphael
Published: July 2022

Abstract In addition to creating scenic landscapes and beautifying urban areas, the cultivation of trees in urban areas can benefit ecosystems and improve cities sustainability. Besides some indications of adequate species for use in public pathways, there are few studies and knowledge regarding the native species behavior and uses for this purpose. In this way, the objective of this study was to evaluate the performance of some native species in urban afforestation of public pathways. Species to be evaluated were selected considering characteristics such as occurrence (biome and region), height (medium or high size), growth rate (moderate to fast), and flowering (season and color) and at the end, 11 species were selected. The species Senna macranthera, Andira fraxinifolia, Pterocarpus violaceus, Cordia superba, Jacaranda cuspidifolia, Peltophorum dubium, Inga vera, Inga edulis, Senna multijuga, Handroanthus impetiginosus and Stifftia chrysantha were planted on a public pathway at Lavras-MG, Brazil (Biome: Mata Atlântica) and evaluated observing the initial survival, growth rate, canopy, diameter at breast height (DBH) and occurrence of damage and disease. Concerning the tested species, A. fraxinifolia and S. macranthera exhibited low survival after planting (10 months) and must be replaced for other species. Handroanthus impetiginosus and P. violaceus exhibited the best performance, presenting a good growth rate, followed by J. cuspidifolia, I. vera, and I. edulis.
Total phenolics, flavonoids, antioxidant activity, and α-glucosidase inhibitory activity of ornamental pepper and several other lines
Authors: Sahid Zulfikar Damaralam , Syukur Muhamad , Maharijaya Awang , Nurcholis Waras
Published: July 2022

Abstract Ornamental chili is a type of chili plant that favors the value of beauty but still has a spicy taste. It generally has a purple fruit color because they contain anthocyanins. The biochemical content in ornamental chili is believed to have benefits for human health. This study aims to identify several biochemical compounds in several genotypes of ornamental chili and pure lines. The study was conducted using the microplate method which was repeated three times. The research design used was a completely randomized design with a single factor genotype. Sixteen genotypes of chili were used, consisting of 4 genotypes of ornamental chilies and 12 genotypes of pure lines. The results showed that the ornamental chili genotype Nazla IPB contained 83.27% α-glucosidase inhibitory activities. The pure lines genotype F10 145174-9-7-1-5-3-1-2-5 contained the second-largest α-glucosidase inhibitory activities (80.67%) and the highest antioxidant DPPH (15.40 μmol TE g.-1 extract). The highest antioxidant of the FRAP method was shown in Adelina IPB’s ornamental chili. The correlation between biochemical parameters showed that DPPH-AGI was significantly positively correlated and FRAP-AGI was negatively correlated. It is concluded that the information in this study can be the basis for the development of functional ornamental plants in future ornamental chili breeding research.
Heteromorphic, physiological and molecular characteristics of Gazania spp grow in North Coast of Egypt
Authors: Tawfik Eman , Soliman Mohamed Soliman Ahmed
Published: July 2022

Abstract Gazania (L.) is one of wild ornamental plant which has special architectures. It is a small genus of 16 species, belonging to the family Asteraceae (Formerly: Compositae). It is low-growing perennial herb, grow in clumps and can also form dense carpets covering large areas. Gazania has multiple genera and species with mutli-petals colors. The chlorophyll pigmentation was measured in leaves and petals of these specimens which show high significant difference. Genomics is the study of genomes, and it can be used to conduct research on genome evolution, genomic variations, gene regulation, and important biological mechanisms using detailed genome sequence information. The diversity of ornamental plants, as well as the slow progress of genome research on ornamental plants for a long time. RAPD-PCR was applied in the present study to estimate the genetic variation in these samples which resulted in a total polymorphism percentage of 42.36%. This polymorphism percentage lead to the variation in essential physiological pathways in Gazania spp and reflected on the multivariate petals color.
Response of the ornamental bedding plant Impatiens walleriana to plug cell volume on a floating system during nursery
Authors: Salinas Máximo , Hakim Guido , Gandolfo Esteban , Lojo Juan De , Giardina Ernesto , Benedetto Adalberto Di
Published: July 2022

Abstract In ornamental plants, the need to optimize nursery management has led to a tendency to decrease plug cell tray volume. However, in ornamental plants such as Impatiens walleriana, a lower plug cell volume can negatively affect leaf area expansion and biomass accumulation during the pre-transplant cycle. Because these results have been associated with a decrease in root growth, a floating system where roots come out of the plug cell has been proposed. The aim of this work was to describe pre-transplant biomass accumulation in plants from different plug cell volumes and the response to two propagation systems: media-based plug cell trays and floating system. The relationship found between plug cell volume and growth in both the media-based and floating systems is in agreement with that found in previous reports. With respect to the traditional media-based system, the floating system showed higher leaf area expansion, as a result of higher leaf appearance rate and relative leaf area expansion. Higher fresh and dry weight accumulation were estimated through the relative growth rate (RGR), with a strong relationship with the capacity of photo assimilate production (net assimilation rate) and RGR. However, all these changes cannot be exclusively associated with a higher root growth in the floating system. Our experiments validate the positive results in favor of the use of a floating system and also shows the physiological mechanisms involved.
Initial growth of zinnia seedlings in substrate with different proportions of biosolid
Authors: Souza Antonio Maricélio Borges de , Vieira Guilherme Rodrigues , Sgobbe Giovana , Ferreira Kássia Barros , Campos Thiago Souza , Pivetta Kathia Fernandes Lopes
Published: July 2022

Abstract Zinnia (Zinnia elegans Jacq.) is a widely cultivated species and used as an ornamental plant in the world flower market. Although it has great potential for phytoremediation and compounds with anti-infective and antioxidant activities there are few studies that address the process of production of its seedlings especially using substrates from organic waste. This study aimed to evaluate the potential of biosolid as a substrate component in the initial growth of Zinnia elegans seedlings. The seedlings were produced in nursery conditions with 50% light control. The experimental design was entirely randomized. There were six treatments, four repetitions and five plants per plot. The treatments consisted of substrates resulting from the mixture of subsoil (SS) and biosolid (BIO) in different proportions: 100% SS (control); 80% SS + 20% BIO; 60% SS + 40% BIO; 40% SS + 60% BIO; 20% SS + 80% BIO; T6 100% BIO. The morphological and quality characteristics of the seedlings were evaluated. Polynomial regression analysis and Pearson correlation coefficient were performed. Quadratic regression fitting was observed for plant height, stem diameter, leaf area, total chlorophyll, and shoot and root dry mass, as well as total dry mass. The shoot height/stem diameter ratio was the characteristic that correlated least with the others, being observed a positive correlation only with plant height. The use of biosolid in the proportion of 60% in the substrate composition proved to be efficient for the initial growth of seedlings as it showed the best responses for most morphological and quality characteristics of the seedlings.
Analysis of the influence of endometriosis on quality of life
Authors: Rodrigues Luciana Abrantes , Almeida Stephany Amaral de , Ferreira Gabriela Nobre , Nunes Erica Feio Carneiro , Avila Paulo Eduardo Santos
Published: July 2022

Abstract Introduction: Endometriosis is a disorder that can significantly affect quality of life (QOL) and interfere in biological, psychological, social, marital and family aspects. Objective: To analyze the influence of endometriosis on the QOL of women diagnosed with the disease. Methods: The study was carried out from March to April 2018, with 10 volunteers from the Santa Casa de Misericórdia do Pará Foundation, with a clinical diagnosis of endometriosis. The Portuguese version of the endometriosis health profile questionnaire (EHP-30) was applied in order to assess QOL in women with this pathology. Results: The sociodemographic results revealed a predominance of women aged between 29 and 55 years, most of whom were married (6) and high school graduates (5). Seven of the ten volunteers had previous pregnancies. Of the aspects evaluated in the EHP-30, 79% of the items associated with pelvic pain in the core questionnaire were present in the participants. In other questionnaires, sexual life (82%) was the most affected index, followed by professional life (70%) and infertility (58.82%). Conclusion: The aspects of QOL most impacted by pelvic pain associated with endometriosis in the women evaluated were sexuality and professional life, leading to biopsychosocial trauma.
Formación ciudadana democrática intercultural de niñas en contextos rurales peruanos
Authors: Camayo-Tolentino Emiruth Valeria , Minaya-Del-Valle Rosario Alejandra , Ruiz-Ruiz Marcos Fernando
Published: July 2022

RESUMEN Se identificaron los factores que influyen en la formación ciudadana, democrática e intercultural de niñas rurales peruanas, así como los actores que contribuyen al reconocimiento de las identidades que fortalecen derechos y deberes sociales a partir del diálogo intercultural. A partir de un diseño exploratorio cualitativo, y con la ayuda de expertos en la temática, se emplearon técnicas prospectivas conducentes a determinar los factores que resultan más influyentes y dependientes. Los resultados indican como factores clave la deserción escolar, la jornada y clima escolares, los aprendizajes logrados, y las estrategias de aprendizaje. El Ministerio de Educación del Perú representó el agente más influyente del sistema. A partir de éstos resultados, conviene indagar más sobre la brecha de género entre niños y niñas rurales y sobre la construcción de una ciudadanía intercultural específica para diferentes contextos del Perú.
Levantamento da geoespacialização e estatística do sporothrix spp em plataformas digitais acadêmicas no brasil
Authors: Silva José Eduardo , Shinohara Neide Kazue Sakugawa , Cunha Filho Moacyr
Published: July 2022

O Sporothrix consiste no gênero de fungos tipo dimórfico, dentre as espécies, S. schenckii, S. mexicana, S. globosa e S. brasiliensis. Pode ser encontrado no solo e em matéria vegetal em vias de decomposição no mundo, sobretudo, regiões tropicais e subtropicais. Infecções produzidas pelo fungo resultam da inoculação traumática de filamentos fúngicos através da pele. Há crescentes ocorrências de contaminação entre humanos e animais domésticos no Brasil. Objetivou-se refletir sobre pesquisas ao nível de pós-graduação realizadas em universidades brasileiras, considerando opcionalmente teses de doutoramento. Utilizou-se das metodologias Estado da Arte e bibliográfica, considerando o recorte temporal de 2011 a 2020, nos bancos de dados, plataformas CAPES e BDBTD. Com os dados fez-se uso da análise estatística da ANOVA e geoespacialização com o software QGIS. Com os resultados foram recuperadas 18 e 31 teses respectivamente das plataformas, analisadas sob a perspectiva dos eixos temáticos, saúde pública, infecção e tratamento, farmacologia e ciências veterinárias. Pode-se concluir que há registros da presença do fungo no país desde os anos 80, bem como o tratamento da doença depende da terapêutica, trata-se de uma zoonose e, portanto, questão de saúde púbica em alguns estados por notificação obrigatória
Long-term effect of vertical and lateral loads on piled raft foundations: a case study
Authors: Tarenia Kajal , Patra Nihar Ranjan
Published: July 2022

In this study, numerical analyses of connected and disconnected piled-raft foundations (PRFs) comprising a single pile, 2 × 1, 3 × 1, 2 × 2, 3 × 2, 3 × 3 and 5 × 5 pile groups subjected to different lateral loads, with a constant vertical load, have been carried out by three-dimensional finite-element analysis. Results from the analysis have been validated with reported field studies considering vertical load and reported experimental studies considering lateral load. The reported multilayered sub-soil profile has been considered for the analysis. Parametric studies in terms of the effect of variation in pile length (L/d = 20, 30, 39), spacing of piles in the pile group (S/d = 3, 5, 6), number of piles, thickness of raft (0.5, 1.2 and 2 m), variation of axial force, excess pore water pressure, bending moment and shear force along the depth of the piles for connected and disconnected PRFs have been discussed for a time period of 20 years. The horizontal connected piled-raft coefficients have been determined corresponding to the lateral deflections. A generalised equation has been predicted for the horizontal connected PRF coefficient.
A structured, blended learning program towards proficiency in epileptology: the launch of the ILAE Academy Level 2 Program
Authors: Blümcke Ingmar , Biesel Eva , Bedenlier Svenja , Händel Marion , Wilmshurst Jo , Mehndiratta Man Mohan , Yacubian Elza Márcia , Cendes Fernando , Arzimanoglou Alexis , Beniczky Sandor , Wolf Peter , Giavasi Christina , Baxendale Sallie , Shisler Priscilla , Wiebe Samuel
Published: July 2022

The ILAE Academy is the online learning platform of the International League Against Epilepsy (ILAE) and offers a structured educational program addressing the competency‐based ILAE curriculum in epileptology. The platform was launched in July 2020 with a self‐paced course portfolio of interactive e‐learning modules addressing ILAE Level 1 learning objectives, defined as the entry level in epileptology. Using feedback questionnaires from completed Level 1 courses as well as sociodemographic and learning‐related data obtained from 47 participants, we show that over 50% of learners have an entry level in epileptology and do not have access to on‐site training and over 40% do not have access to on‐site training. Most respondents found the case‐based e‐learning modules relevant to their practice needs, and the time for completion was regarded as viable for most, reiterating the value of an online self‐paced training in the field. Participants who have successfully completed all compulsory e‐learning material of the Level 1 program and received their final certificate will now be eligible to subscribe to the Level 2 program. The Level 2 program addressing the proficiency level of the ILAE curriculum of epileptology was launched on the ILAE Academy platform in May 2022. The Level 2 program will offer an evolving series of self‐paced, interactive, case‐based e‐learning modules on diagnosis, treatment, and counseling of common as well as rare epilepsies at a higher level of care. An interactive online EEG and MRI reader was developed and is embedded into the course content to satisfy the demands of the learners. The hallmark of this level will be the blended learning with tutored online courses, e.g., the established VIREPA courses on EEG and the newly introduced VIREPA MRI program. Our distinguished faculty will hold live tutored online courses in small groups in various languages and continental time zones. Finally, the ILAE face‐to‐face curricular teaching courses at summer schools and congresses will represent another pillar of this advanced teaching level. The ILAE Academy will also provide Continuing Medical Education (CME) credits to support career planning in epileptology.
Perfil de Bioquímica: um jogo coletivo com interface física e digital
Authors: Melo Márcia Rúbia Silva , Oliveira Hugo Valério Corrêa de
Published: July 2022

A utilização de metodologias ativas vem trazendo benefícios reais para o processo de ensino-aprendizagem, e isso pode ser bem visível para as disciplinas consideradas de grande complexidade, a exemplo da Bioquímica. Alinhando a preocupação entre despertar o interesse dos alunos na disciplina e melhorar a aprendizagem de uma forma interativa surge a crescente utilização dos jogos didáticos. O presente trabalho tem como objetivo apresentar o jogo Perfil de Bioquímica, que teve sua inspiração no jogo comercial Perfil Júnior 2 da Grow Jogos e Brinquedos LTDA. Para esta versão didática propõe-se, de maneira lúdica, estimular a aprendizagem por meio da gamificação, dos conteúdos estudados durante o curso de Bioquímica. A metodologia foi baseada na descrição do desenvolvimento, componentes e regras do jogo. A aplicação do jogo em sala de aula foi avaliada e discutida segundo as respostas dos alunos mediante o preenchimento de um formulário da plataforma Google Forms© que visou coletar dados a respeito da relevância do jogo para a disciplina, possibilidade de aprendizagem, satisfação, entre outros questionamentos. De acordo com as respostas, 100% dos alunos considerou relevante a aplicação do jogo para a disciplina de Bioquímica e que esta foi uma ótima oportunidade de aprendizagem entre os pares.
Perception of Pre-Service Chemistry Teachers about Detergency: From Macroscopic Observations to Symbolic Theoretical Mental models applied to inactivation of SARS-CoV-2
Authors: Espindola Lima Quelen Colman , Teixeira da Rocha João Batista , Da Silva Loreto Élgion Lucio
Published: July 2022

This study deals with an experimental proposal and the elaboration of schemes to address the topic of lipids and the effects of detergents in SARS-CoV-2 at the molecular level. The proposal was applied to undergraduate chemistry students (pre-service chemistry teachers). In addition to conceptual learning, the objectives were: 1) to explore or develop procedural, attitudinal, and cognitive skills of future teachers; and 2) to analyze the ability to correlate experimental observations with real phenomena, such as the theoretical interpretation of SARS-CoV-2 inactivation by detergents. Data were obtained from individual reports and schemes constructed by students and analyzed using the Content Analysis method. The main results indicated that the development of experimental activity with pre-service chemistry teachers can encourage them to reason scientifically about simple daily phenomena and favor them to develop scientific literacy. However, the students had difficulty in formulating chemical symbolic hypotheses to explain macroscopically observed phenomena and to explain theoretically everyday situations.
Biochemistry teaching during a pandemic – an online teaching experience
Authors: Pereira-Dias Francis , De Espíndola Marina Bazzo
Published: July 2022

The present work describes an educational experience involving the teaching of Biochemistry in a high school during the COVID-19. During the online classes, we explored various tools for online education with the purpose to connect with the students and to connect the Biochemistry topics to health and exercise. We explore the tools created for this educational practice: website, media, blog, video, games, and software. The flipped classroom model was used, in which the concepts of Biochemistry teaching were connected with the student’s daily life through the debate on Food and Health. Students’ feedback was collected in a non-obligatory, anonymous questionnaire. The results point out to a global satisfaction regarding the methodology and tools developed. We understand the practice here can be of use for future teaching of Biochemistry in online or hybrid situations.
Bingo didático: um jogo para dinamizar o aprendizado da degradação oxidativa de carboidratos
Authors: Furtado Ana Maria Medeiros , Leal Camilla Nazaré Tavares , Goulart Gabriel Castro , Santos Ingrid Alana Carvalho , Silva Ana Keylla Sousa , Reis Isadora Silva Correa , Lages Izabelli Oliveira , Coelho Hendrya Julianny Pereira , Costa Caio Vitor Conceição , Macedo Daralyns Borges , Souza Joanne Moraes de Melo , Nunes-Rodrigues Marilia Danyelle
Published: July 2022

A compreensão dos diversos assuntos de bioquímica é, muitas vezes, dificultada por variados aspectos do modelo de ensino atual, tanto a nível superior quanto a nível médio. Nesse ponto, diante de obstáculos, é comum que uma quantidade significativa de alunos seja desmotivada a realmente aprender e entender o conteúdo ministrado pelo professor. Assim, este estudo tem o objetivo de propor a introdução de um Bingo didático como forma alternativa de atividade didática no que se refere ao tema degradação oxidativa de carboidratos, bem como orientar sua aplicação e avaliar os resultados no aprendizado dos participantes da atividade.
Динамика этнолингвистической структуры населения Киргизии
Authors: Авдеев Александр Александрович , Троицкая Ирина Алексеевна
Published: July 2022

В статье представлен анализ изменения этнолингвистической структуры населения Киргизии после обретения республикой независимости, а также дана оценка роли и места русского языка на примере владения им как вторым/третьим языком и его присутствия в системе школьного образования.

В работе использованы данные Национального статистического комитета Киргизской Республики, отличающиеся большей детальностью по сравнению с демографической статистикой других стран Центральной Азии, а также данные переписи населения СССР 1989 года и выборочного обследования MICS (Многоиндикаторного кластерного обследования) 2018 г.