bluuebunny/crossref_metadata_2025 huggingface dataset:
FITNESS TRAINING FOR COLLEGE SOCCER PLAYERS
Authors: Chou Zhen
Published: November 2022

ABSTRACT Introduction: Physical fitness is an essential factor affecting soccer in China, and its high-level results from the overlapping training effects of various factors on the soccer athlete. Objective: This study aims to analyze the relationship between practical fitness training and performance in college soccer players. Methods: College soccer players volunteered for a fitness training session. Mathematical statistics were used to analyze volunteers’ fitness and competition performance before and after training. The impact of soccer fitness training on the athletes’ physical quality was also considered. Results: After eight weeks of fitness training, improvement in the performance of college soccer players was noticed. There was a statistical difference in performance and physical quality after physical training (P<0.01). Conclusion: College soccer players improved performance after fitness training. Such training can improve the physical fitness of college soccer players. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
PHYSICAL FITNESS TRAINING AND REACTION SPEED IN SPORTS TABLE TENNIS PLAYERS
Authors: Yao Zhi , Chao Yuhan
Published: November 2022

ABSTRACT Introduction: Table tennis is demanding in terms of athletes’ physical fitness and muscular responsiveness. Excellent physical fitness is important to ensure a high technical level. It can also play an essential role in injury prevention. Objective: Explore the correlation between table tennis players’ movements and their displacements. Methods: Volunteer professional competitors underwent a private 16-week quality speed training program. In this experiment, athletes had their speed analyzed before and after training. Mathematical and statistical analyses were performed on the collected data. Some discussions are made to improve the reflex ability of the athletes. Results: The table tennis players’ physical fitness and action response capacity were explored. After physical exercise, the players’ reflex ability improved. There were statistically significant differences in the data (P<0.05). Conclusion: The results show that special training improves athletes’ reaction speed, endurance, strength, coordination, and flexibility. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
SPECIAL TRAINING FOR ATHLETES TO IMPROVE THEIR PHYSICAL AND SPORTIVE CAPACITY
Authors: Zhang Jiejian
Published: November 2022

ABSTRACT Introduction: Athletes’ physical fitness is an important factor in achieving good results in the game. Exercise and physical skills training are important means of improving competitive sports. No matter the type of sporting event, there are strict regulations on players’ physical fitness. Objective: Analyze the special methods of physical exercise to improve the physical quality of athletes. The results can provide a reference for coaches to formulate more scientifically specific training programs for athletes. Methods: Several athletes with certain sports skills are selected as subjects. The objective of this work is to detect the level of physical fitness of the athletes. And based on this, a statistical analysis of their motor function was performed. Finally, an empirical study is conducted using mathematics and statistics. Results: The difference between the athletes was statistically significant (P<0.05). There were significant differences in athletic ability, physical attractiveness, and body mass among the special exercises for athletic ability (P<0.05). Conclusion: The methods for improving physical quality in male and female athletes were successful in athletes of different disciplines. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
PSYCHOLOGICAL TRAINING OF SOCCER PLAYERS AT COMPETITION LEVEL
Authors: Li Jiangtao , Hu Xingli
Published: November 2022

ABSTRACT Introduction: Competitive sports compete for technology, tactics and physical fitness. There is also competition for the psychological quality of athletes. There is an intrinsic connection between athletes’ mental state in competition and their psychological characteristics. Objective: Explore the influence of soccer players’ psychological characteristics on the level of competition. Methods: This paper investigates 220 soccer players using a questionnaire. In this database, variance analysis, multiple comparisons, factor analysis and other statistical analysis methods were used to ascertain the psychological status of Chinese soccer players. Finally, the factors affecting the psychological characteristics of soccer players were analyzed. Results: There were differences in the psychological characteristics of soccer players at different positions and levels. Conclusion: There are specific variations in psychological status among different types of players. The factors that influence the anxiety level of soccer players are a multidimensional system. It contains both subjective and objective content. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
Pedotransfer functions for estimating the van Genuchten model parameters in the Cerrado biome
Authors: Veloso Mariana F. , Rodrigues Lineu N. , Fernandes Filho Elpídio I. , Veloso Carolina F. , Rezende Bruna N.
Published: November 2022

ABSTRACT The Cerrado biome has presented challenges in reconciling its agricultural expansion with water availability. In this sense, water resources planning and management are fundamental for the economic, social, and environmental development of the Cerrado biome, which has been hampered by the lack of data, especially those referring to irrigation strategies, such as, for example, the water retention curve. The water retention curve is essential to understand water dynamics in the soil; however, obtaining it can be laborious, opening an opportunity for Pedotransfer Functions (PTFs). The current study aimed to develop and evaluate PTFs to estimate the fit parameters of the van Genuchten model for the Cerrado biome. Multiple Linear Regression (MLR) and four machine learning (ML) algorithms were used to develop the PTFs. The ML algorithms were the Multivariate Adaptive Regression Splines (MARS), Random Forest (RF), Support Vector Regression (SVR), and K Nearest Neighbors (KNN). Two combinations of soil data were evaluated, and the predictor variables used in each set were different. Using the RF and SVR models, the best estimates were obtained concerning the parameter θs (saturated water content). As for θr (residual water content), the models showed a moderate predictive capacity. For the other parameters, the models did not perform satisfactorily for α and n (fit parameters).
Use of the test bench for spray drift assessment under subtropical climate conditions
Authors: Precipito Laís M. B. , Ferreira Luiz A. I. , Paduan Natãny A. , Lima Julião S. de S. , Oliveira Rone B. de
Published: November 2022

ABSTRACT As an alternative to the International Organization for Standardization (ISO) method 22866, a method for the field measurement of spray drift was developed in the Department of Agricultural, Forestry and Environmental Economics and Engineering of the University of Turin, Italy. This new method, termed “test bench,” can be applied for wind conditions beyond those covered in ISO 22866. The aim of this study was to quantify the drift potential of three nozzles at two working pressures and two sprayer boom heights using the test bench method, under subtropical climate conditions. The experiment was conducted at Bandeirantes, Paraná State, Brazil, from 2018 to 2019 in a completely randomized design with 12 treatments, wherein three nozzles were used at the minimum and maximum working pressures, and two boom heights were tested, with four replicates for each combination. The following nozzles were used: XR11002 (100 and 400 kPa), AIXR11002 (100 and 600 kPa), and ATR 2.0 (400 and 2000 kPa), operating at boom heights of 0.50 and 1.00 m. The test bench method allows for drift assessment under subtropical climate conditions, and the results revealed that changes in meteorological conditions, nozzles, and pressure are key factors affecting the drift potential of boom sprayers. Relative air humidity and working pressure were the most important determining factors of the drift potential of the nozzles, whereas boom height had no effect on drift potential.
Cartography as a Research Method for Work and Subjectivity Studies
Authors: Scherer Laura Alves , Grisci Carmem Ligia Iochins
Published: November 2022

ABSTRACT Objective: the study aims to present cartography as a suitable method to research work and subjectivity in administration. Proposal: in this article, cartography is supported by Deleuze and Guattari’s concept of ‘rhizome,’ aligned to post-structuralism and grounded on administration studies. Finally, this study proposes the flâneur-cartographer as a cross-cutting practice in research. The use of cartography is illustrated by describing the cartographic path of a study on subjectivation processes that make up the immaterial labor of migrants and refugees in Brazil. Conclusions: tracking, touching, landing, attentive recognition, and, above all, the journey as a flâneur-cartographer guide the approach to the territory. Participant-observation of events-activities and interview-meeting with the various participants are simultaneous strategies to follow the processes of the territory, evidencing the research-participation or investigation-interaction, the cartographer’s political role, and the ethos of trust necessary in cartography. The analysis of the jointly produced data occurs throughout the research. Keeping vigilance to scientific norms, cartography configures itself as an affective and political method to assess the relationship between work and subjectivity in existential territories of difficult access. Therefore, the method offers a social contribution, welcoming multiplicity, alterity, and mobility.
Changes in the physiological potential of sunn hemp seeds during storage
Authors: Silva Bruna Neves Pereira da , Masetto Tathiana Elisa , Souza Luiz Carlos Ferreira de
Published: November 2022

ABSTRACT Sunn hemp (Crotalaria spectabilis) is widely used for soil correction and cover, but it is still necessary to know the characteristics that influence the storage of its seeds. This study aimed to evaluate the physiological quality of sunn hemp seeds under uncontrolled environmental conditions and in acclimatization chamber. A completely randomized experimental design was used, with four replicates, in subplots evaluated in different periods. Freshly harvested seeds and seeds at 90, 180 and 270 days of storage were evaluated for germination, first germination count, germination speed index, seedling emergence in the field, accelerated aging, cold test and seedling growth. The environment and storage time significantly influenced the seed germination and vigor. The seeds showed a high physiological performance for both the environmental conditions, maintaining the ability to produce normal seedlings up to approximately 150 days of storage, deteriorating afterwards, although without losing their germination capacity up to 270 days of storage.
Prospective analysis of soybean distribution in the Tocantins state considering climate change scenarios
Authors: Andrade André de Moura , Collicchio Erich
Published: November 2022

ABSTRACT Soybean is one of the agroenergy crops of greatest supply and demand in the Brazilian economy. Even though positive slopes in the productivity curves are constantly perceptible, the demands for arable land are evolving wildly, inevitably promoting deforestation actions and deleterious effects on the natural biogeochemical cycles, such as the carbon cycle. Several environmental models are used to explain these complex phenomena, whose variables change spatially and temporally as a function of economic, social and natural factors. Therefore, this study aimed at prospecting the soybean cultivation area using a territorial dynamics model (Dinamica EGO), in regions where sustainable use conservation units are located in the Tocantins state, considering different climate risk scenarios based on the water requirement satisfaction indexes (WRSI), calculated using daily average rainfall and temperature data from the MIROC5 global climate model. The WRSI contributed to a greater exploitation of natural resources around the environmental preservation areas of Ilha do Bananal/ Cantão, Lago de Palmas and Serra do Lajeado. Furthermore, a possible decrease in the soybean area in some recognized producing centers was prospected, as well as a scenario of greater distancing of this species cultivated areas, in a near future, from the mosaic of conservation units of Jalapão, which has become of high climatic risk for the soybean grain yields usually demanded by the market.
Characterization of indole-3-acetic acid content in inoculant fractions and its effect on plant growth
Authors: Mattiuzzi Pedro Henrique Pedron , Vendruscolo Eliane Cristina Gruszka , Santos Marise Fonseca dos
Published: November 2022

ABSTRACT Indole-3-acetic acid (IAA) is a phytohormone produced by many rhizobacterial species to mediate plant colonization while promoting plant growth. The colorimetric assay is widely used to analyze the bacterial IAA biosynthesis because it is a straightforward, cost-effective and fast technique. However, the characterization of parts or fractions of inoculant formulations is rarely performed. This study aimed to determine the fraction of the inoculant that is effective in promoting the plant growth, whether the bacteria or media growth can induce the phytohormones to expand the radicular zone of the plant, and whether the seed bacterization or foliar application can alter the plant growth. The inoculum samples (homemade and commercial) were obtained in a Luria-Bertani growth medium with and without tryptophan-L and the inoculants were divided into two fractions: pellet and supernatant. For the IAA quantification, the pellet fraction was subjected to physical (sonication) and chemical (lysozyme) treatments alone and combined. The IAA levels were evaluated using the colorimetric assay, and the effect on plant growth was determined by the inoculation of maize seedlings. The homemade and commercial formulations showed distinct patterns, in terms of IAA synthesis. The supernatant fraction provided higher amounts of IAA and was effective in improving the root area. Lysozyme was superior to sonication in mediating the release of IAA from bacterial cells. No significant differences were observed between seed or foliar inoculation.
Yield and quality of gerbera floral stalks in substrate supplemented with different doses of nitrogen and calcium
Authors: Milani Marília , Pradella Elisandra Maria , Heintze Willian , Schafer Gilmar , Lopes Sidinei José , Bender Renar João
Published: November 2022

Abstract Success in production and quality of gerbera flower stalks over time depends on environmental factors and on appropriate fertilization procedures. The objective of the present work was to evaluate the production and quality of flower stalks of gerberas as cut flower cultivated for 28 months (with 25 months of harvest) in a pine bark-based substrate supplemented with different doses of nitrogen and calcium. The experiment was conducted in a greenhouse. Three doses of nitrogen (N) (0.07 g, 0.15 g and 0.20 g L-1 substrate) and three doses of calcium (Ca) (0.02 g, 0.03 g and 0.04 g L-1 substrate) were applied every 15 days along the cultivation period. The control was considered an additional treatment to which neither N nor Ca was supplemented to the plants in the pots. Highest flower yields and best flower quality were obtained in months in which the temperatures were in the range of 20 ºC to 25 ºC. The highest number of floral stalks and the largest diameter of the capitulum had a significant quadratic adjustment according to N doses. The maximum values were obtained with 0.14 g of N L-1 substrate. Whereas for Ca fertilization, a significant positive linear adjustment was determined, i.e., the highest values were obtained with the highest dose (0.04 g Ca L-1 substrate). There was a monthly variation in the yield and quality of cut gerberas grown in commercial substrate based on pine bark regardless of the different doses of nitrogen and calcium used in the experiment.
“I actually never heard of it or participated in it”: the National Policy on Comprehensive Health of the Black Population in the perspective of health managers and professionals
Authors: Silva Silvana Oliveira da , Berenguer Aniele Almeida Silva , Ricardo Thaíse Mara dos Santos , Lopes Giovanna De Carli , Sá Marcos Venicius Gomes De , Santos Débora Santa Mônica , Bittencourt Liliane de Jesus , Santana Karine de Souza Oliveira
Published: November 2022

Abstract This study analyzes how the National Policy on Comprehensive Health of the Black Population (PNSIPN) has been implemented in three municipalities in the state of Bahia, Brazil. This qualitative study is part of an ongoing action research, in which semi-structured interviews were performed with 27 professionals from family health, primary health care, and health district headquarters. Content analysis presented four categories: primary health care (PHC); Black health; health care in diversity; and PNSIPN. Health professionals showed a superficial understanding of PHC, despite recognizing it as a gateway. A specific health care for the Black population was considered irrelevant, on the grounds that everyone is equal. Diversity was linked to the LGBTQIA+ population and life cycles, but not to ethnicity or skin color. All municipalities lacked knowledge about the PNSIPN and the practical means to implement it in their daily work. Its absence in the services’ planning and work processes shows an urgent need for permanent education in health so that managers and professional can appropriate the principle of equity.
“Na verdade eu nunca participei e nem ouvi falar sobre”: a Política Nacional de Saúde Integral da População Negra na perspectiva de gestores e profissionais da saúde
Authors: Silva Silvana Oliveira da , Berenguer Aniele Almeida Silva , Ricardo Thaíse Mara dos Santos , Lopes Giovanna De Carli , Sá Marcos Venicius Gomes De , Santos Débora Santa Mônica , Bittencourt Liliane de Jesus , Santana Karine de Souza Oliveira
Published: November 2022

Resumo Este artigo analisa como a Política Nacional de Saúde Integral da População Negra (PNSIPN) tem sido implementada na atenção à saúde em três municípios do Estado da Bahia, Brasil. Trata-se de um estudo qualitativo que faz parte da primeira etapa de uma pesquisa-ação, na qual foram realizadas entrevistas semiestruturadas com 27 profissionais de unidades de Saúde da Família, Atenção Básica e Sede do Distrito Sanitário. Após análise de conteúdo, emergiram quatro categorias: Atenção Primária à Saúde (APS); Saúde da População Negra; Atenção à saúde na diversidade; e PNSIPN. Como resultado, os profissionais apresentaram entendimento superficial sobre a APS, apesar de a reconhecerem como porta de entrada. A relevância de uma atenção à saúde específica para a população negra foi desconsiderada, sob o argumento de que todos são iguais. A diversidade racial não foi reconhecida dentro do cotidiano, sendo o termo atrelado à diversidade LGBTQIA+ e aos ciclos de vida. O dado comum nos municípios foi o desconhecimento da PNSIPN e dos meios práticos para inseri-la no cotidiano do trabalho. A ausência da política para essa população no processo de planejamento e trabalho dos serviços revela a urgência da educação permanente em saúde para a apropriação do princípio de equidade pelas gestoras e profissionais.
Performance evaluation of a solar-powered wastewater treatment plant (two-stage SBR) operated in tropical climate regions
Authors: Dufner Lukas , Selvam Tamil Sakthi Silva , Otto Nikolai , Neuffer Daniela , Santos Hélio Rodrigues dos
Published: November 2022

ABSTRACT This article investigates the performance behaviour of a small decentralized wastewater treatment plant with a capacity of up to 50 population equivalents powered by solar energy. The two-stage sequencing batch reactor (SBR) consists of a photovoltaic (PV) system to deliver energy, a battery storage for night operation and two reactor tanks. In the experimental period of 157 days, the wastewater inflow was increased from 3 to 4.5 and 6 m3.d−1, with sludge ages of 32 ± 2 d in the beginning and 21 ± 2 d in the end. The results corresponding to the different phases indicated high efficiency and stability of the system with domestic wastewater, reaching efficiencies of the test periods of 93 ± 2%, 86 ± 4% and 93 ± 6% for removal of chemical oxygen demand, nitrogen and phosphorus, respectively. In the last 51 days, aeration in the night was interrupted for three hours to save energy and study the behaviour of extended non-aerated phases. A shortening of the aeration phases can help to extend the lifetime of batteries and reduce operational costs, while limiting values in the outlet are still met.
Broadcast application of ground silicate rocks as potassium sources for grain crops
Authors: Crusciol Carlos Alexandre Costa , Soratto Rogério Peres , Gilabel Amanda Prado , Costa Claudio Hideo Martins da , Campos Murilo de , Castro Gustavo Spadotti Amaral , Ferrari Neto Jayme
Published: November 2022

Abstract The objective of this work was to evaluate the agronomic and economic efficiency of phonolite rock (K2) and alkaline potassium-silicate rock (K3), ground and applied by surface broadcasting, as K sources for the soybean (Glycine max), corn (Zea mays), common bean (Phaseolus vulgaris), and upland rice (Oryza sativa) crops. Four experiments – one with each crop – were conducted in two crop years in a Typic Haplorthox in a randomized complete block design with four replicates. The treatments consisted of three sources (the KCl standard source, K2, and K3) and four rates (0, 0.5, 1.0, and 2.0 times the recommended for each crop) of K. The three sources increased similarly the leaf K concentration of soybean, corn, and common bean but had no effect on that of upland rice. The grain yield of all crops increased with the application of K2 and K3, as observed for KCl. The efficiency of the alternative K sources varies depending on the rate and crop. The K3 source is viable to be applied by broadcasting at the recommended K rate for all studied crops, while K2 is suitable only for soybean, corn, and common bean.
Plot size and number of replicates for ryegrass experiments sowed in rows
Authors: Toebe Marcos , Cargnelutti Filho Alberto , Bandeira Cirineu Tolfo , Tartaglia Francieli de Lima , Carvalho Juliana Oliveira de , Cortes Alessandra Ferreira , Brasil Neto Edgar Salis
Published: November 2022

Abstract The objective of this work was to determine the optimal plot size and the number of replicates for the evaluation of the fresh weight of ryegrass sowed in rows. Seventy uniformity trials were performed with 'Barjumbo' ryegrass, in 16 basic experimental units (BEUs) of 0.51 m2 each. The fresh weight of ryegrass in the BEUs of 18, 18, 6, 6, and 22 uniformity trials was determined, respectively, at 130, 131, 133, 134, and 137 days after sowing. The optimal plot size was determined through the method of the maximum curvature of the coefficient of variation. The number of replicates was determined in scenarios formed by combinations of treatments and differences between means to be detected as significant by Tukey’s test, at 5% probabilit y. The optimal plot size ranged from 1.73 to 3.18 m2, and the variation coefficient in the optimal plot size from 7.58 to 13.96%. The number of replicates varied from 3.95 (~4) to 32.27 (~33), depending on the experimental design, the number of treatments, and the adopted minimum difference. The optimal plot size is 2.29 m2, and, in experiments with up to 50 treatments, eight replicates are required to identify as significant the differences between treatment means of 20.24%.
Plot size and number of replicates for experiments with forage sorghum
Authors: Toebe Marcos , Cargnelutti Filho Alberto , Souza Rafael Rodrigues de , Soares Franciele dos Santos , Mello Anderson Chuquel , Melo Patrícia Jesus de , Silva Lucas Santos da
Published: November 2022

Abstract The objective of this work was to define the optimal plot size and number of replicates for the evaluation of the fresh weight of sorghum (Sorghum bicolor) hybrids. Thirty-two uniformity trials were carried out with two hybrids, in two sowing dates and four evaluation periods. Each trial was divided into 48 basic experimental units (BEUs) of 0.5 m2, and fresh weight was determined for each BEU. The mean, variance, coefficient of variation, first-order spatial autocorrelation coefficient, optimal plot size, and coefficient of variation of the optimal plot size were calculated. The number of replicates was determined on the basis of the largest calculated plot size, through an iterative process, for the combinations of number of treatments and differences among means to be detected as significant by Tukey’s test, at 5% probability. The optimal plot size ranged from 1.79 to 2.58 m2, and the number of replicates from 2.6 (~3) to 49.2 (~50). The optimal plot size is 2.58 m2, and five replicates are sufficient to identify as significant the differences between treatment means of 35%.
Efeitos da judicialização da educação infantil evidenciados na produção acadêmica brasileira (2009-2019)
Authors: Araújo Maciela Mikaelly Carneiro de , Santos Solange Mary Moreira
Published: November 2022

Resumo Esta pesquisa buscou responder à questão dos desafios evidenciados na produção acadêmica sobre a judicialização da educação infantil. Para isso, teve por objetivo analisar a judicialização da educação infantil na produção acadêmica existente nos Programas de Pós-Graduação em Educação no Brasil, no concernente à garantia do direito às creches e pré-escolas, entre 2009 e 2019. Caracteriza-se como uma pesquisa qualitativa, do tipo estado do conhecimento. Os resultados do estudo apontaram que a judicialização é uma ação paliativa e pontual na resolução da questão da falta de vagas, pois não basta garantir o direito de algumas crianças por meio de ações jurídicas sem planejar a longo prazo e sem dispor de orçamento para atender o direito de todas as crianças que precisam das vagas em escolas na primeira infância. Isso impacta na concepção de direito e de educação infantil construída na história das políticas educacionais brasileiras, a fim de se superar a visão assistencialista e o atendimento filantrópico. Também é pertinente considerar que o cumprimento do direito à educação infantil para as crianças ainda enfrenta desafios como a priorização de recursos para o ensino fundamental e a falta de qualidade, engendrada pelos efeitos da judicialização nas questões pedagógicas, a exemplo da superlotação das salas de aula e da ausência de recursos humanos e materiais. Nesse sentido, esta pesquisa abre espaço para novos estudos sobre a temática nos Programas de Pós-Graduação em Educação, sobretudo na região Nordeste.
Feminismo negro: pedagogias, epistemologias, ético-políticas e métodos. Entrevista com Christen A. Smith
Authors: Sousa Adriana Tolentino , Silva Uvanderson , Jardim Fabiana
Published: November 2022

Resumo Christen Smith é antropóloga, professora da Universidade do Texas (Austin) e pesquisadora de temas como violência de Estado, racismo antinegro, seus efeitos sobre comunidades e mulheres negras e, ainda, formas culturais e movimentos sociais que procuram fazer frente a tal violência; a professora também pesquisa a contribuição intelectual de mulheres negras nas Américas. A pesquisa de seu doutorado foi realizada em Salvador (BA – Brasil), e marcou o início da longa relação que a professora tem com o país. Na entrevista que nos concedeu, Christen nos contou sobre sua trajetória de formação, não apenas em sentido disciplinar, mas compartilhando de modo bastante vivo como foi tomando posições éticas e políticas no interior de uma cultura acadêmica marcada pela supremacia branca, encontrando interlocutoras (de ontem e hoje) e constituindo uma voz, indissociável da comunidade de mulheres, escritoras e pesquisadoras negras que lhe acompanham. De modo generoso, a professora também partilhou preocupações e dilemas em seu trabalho de campo, sublinhando o processo de estar com as comunidades nas quais realizava sua pesquisa (nos ônibus, nas ruas, nas acomodações ao longo de viagens) e de aprender com aqueles e aquelas que, ao fazer frente aos desafios cotidianos da violência de Estado, produzem conhecimentos sobre a situação. Conversamos também sobre o ciclo de levantes contra o racismo nos Estados Unidos da América e no Brasil (além de outros países), que ocorreu em meio à pandemia provocada pelo Sars-Cov-2. Christen chamou a atenção para a reiteração de casos de violência e para como devemos examiná-los de modo a tornar visíveis as operações da antinegritude em nível transnacional. Concluímos a entrevista em torno do projeto Cite Mulheres Negras, iniciado pela professora, que tem como objetivo enfrentar as políticas de apagamento e não reconhecimento da voz e da autoria de mulheres negras.
Reproductive aspects of prawn Desmocaris trispinosa (Aurivillius, 1898) from a periurban stream of Abidjan (Banco stream, Côte d'Ivoire)
Authors: Koné Wayrawélé Yasmen , Konan Mexmin Koffi , Konaté Nakouma
Published: November 2022

Abstract Aim Characterize habitats and determine the reproductive parameters of the prawn Desmocaris trispinosa (Aurivillius, 1898) from Banco stream, a periurban stream of Abidjan (Côte d'Ivoire, West Africa). Methods Sampling was conducted monthly, from July 2020 to June 2021 at four stations. Environmental characteristics were measured before prawn sampling. The sampling was made with a dipnet during five-minute active fishing conducted by a single operator at each station. Results According to environmental variables, sampling stations were divided into three groups: almost undamaged (B4), slightly disturbed (B1) and disturbed (B2 and B3). In total, 467 specimens of D. trispinosa were captured in which 127 males, 275 females and 65 juveniles. Overall, the sex ratio (1:2.1) was in favour of females. Considering stations, the sex ratio was also in favour of females. But, only in the almost undamaged station (B4), the difference was significant (χ2 = 70.20; P<0.001). At this station, a variation of sex-ratio was observed in two seasons. In total, 116 ovigerous females were analysed on all stations. Fecundity varies from 5 to 16 oocytes with an average of 11.03 ± 2.18. First maturity size was estimated at 4.82 mm carapace length for the combined data. Females from the station free from human activities (B4) reached sexual maturity (4.23 mm) before those of the other stations (4.97 in B1 and 5.70 mm in B2). D. trispinosa from Banco stream reproduces continuously year-round with two peaks in the rainy season. The oocyte volume was negatively influenced by temperature and positively by dissolved oxygen. Conclusions D. trispinosa reproduces year-round in undisturbed stations and reaches sexual maturity faster at these stations compared to disturbed stations. The sex ratio was in favour of females. Consequently, this species would be naturally polygamous.
ROBUST NONLINEAR FILTERING OF NAVIGATION SATELLITE MEASUREMENTS
Authors: Sokolov S. V. , Pogorelov V. A. , Sukhanov A. V. , Kurinenko M. V.
Published: November 2022

A novel approach to processing satellite navigation measurements with high-precision positioning of mobile objects is considered. For its implementation, at the first stage, stochastic nonlinear differential equations of spatial coordinates of a mobile object were obtained from Doppler satellite measurements and their observer's equations were obtained from pseudo-range measurements. The form of the obtained equations allows one to use the methods of the theory of nonlinear and, in particular, robust filtering to estimate the coordinate vector of an object. As a rule, the nature of the type of interference distributions of Doppler and code measurements is uncertain. Therefore, a dynamic robust algorithm was developed to estimate the spatial coordinates of an object. This algorithm is optimal in terms of the minimum criterion of a nonlinear positive determined function from measurement inconsistency determined by the class of interference distributions of Doppler measurements and pseudo-range measurements. The comparative effectiveness of this algorithm with the conventional approach is illustrated by a numerical example.
Investigation of concrete incorporating ultra-high volumes of ash: a case study in India
Authors: Titiksh Abhyuday , Wanjari Swapnil P
Published: November 2022

Coal-fired thermal power plant ash (CTPA) has been widely used in construction works not only as a partial replacement for conventional cementitious binders but also as a substitute for fine aggregates. However, higher volumes of CTPA in concrete typically lead to non-satisfactory performance of concrete in terms of strength and durability. This was remedied by incorporation of hyperplasticisers, which offset the negative effects of loss of workability, segregation, bleeding and strength reduction. This study describes three field studies undertaken with ultra-high volumes of CTPA in terms of class F fly ash and coarse bottom ash in M40 grade sustainable pavement-quality concrete at National Thermal Power Corporation (NTPC) Khargone, Khargone, India; NTPC Mouda, Nagpur, India; and Dhariwal Infrastructure Limited Tadali, Chandrapur, India. Core samples of 100 mm diameter and varying slenderness (H/D) ratios were drawn from cast segments at the sites after 28 days of curing, and the results in terms of compressive strength and durability characteristics were evaluated against the results of laboratory investigation. Statistical analysis was also conducted using Student’s t-test to analyse the variance in the results. The effects of the H/D ratio of core samples on the compressive strength of cores were also analysed. The results indicate a non-significant difference in the values of the means of the compressive strength of the batches for H/D = 1, indicating the field applicability of the developed mix designs for severe exposure conditions.
Liquefaction-induced flow-like landslides: the case of Valarties (Spain)
Authors: Di Carluccio Gaia , Pinyol Núria M. , Alonso Eduardo E. , Hürlimann Marcel
Published: November 2022

This paper examines a flowslide involving a glacial deposit of low-plasticity silty sand triggered by a karstic spring after a rainfall period. The work aims at explaining the triggering, propagation and kinematics of flow-like landslides in a unique framework. In particular, a material point method open-source code, able to solve coupled hydro-mechanical problems for saturated/unsaturated soils, was developed. Laboratory and field experiments revealed a liquefaction potential of the mobilised material. To simulate such potential, a recent liquefaction model (Ta-Ger), validated so far at a laboratory scale, was selected, extended to unsaturated conditions, implemented and calibrated. The analysis indicates a complex behaviour of the moving mass and explains the mechanisms developing sequentially in the flowslide. The impact of the upper unstable soil mass against the soil at lower elevations is a key phenomenon to generalise soil liquefaction in the entire slope. Patterns of soil velocity and displacements are far from being a uniform flow of liquefied material. The model developed is a powerful tool to interpret flowslides involving a saturated and unsaturated soil profile. The paper includes sensitivity analyses and discusses the discrepancies observed in the run-up of the flowslide climbing on the opposite slope of the valley.
Load–deflection of flexible ring-net barrier in resisting debris flows
Authors: Kong Yong , Li Xingyue , Zhao Jidong , Guan Mingfu
Published: November 2022

Quantitative understanding of the load–deflection mechanisms of a flexible barrier in intercepting debris flows is critical for barrier design, but remains practically challenging due to the difficulties involved in capturing multi-phase, multi-way interactions. This study employs a physics-based coupled computational fluid dynamics and discrete-element method (CFD–DEM) to simulate a flexible ring-net barrier as a permeable, deformable multi-component system by DEM and model a debris flow as a mixture of discrete particles and a continuous slurry by DEM and CFD, respectively. The CFD–DEM coupling framework offers a unified treatment of in-flow solid–fluid interaction, flow–barrier interaction and interactions among barrier components. Numerical predictions of key flow–barrier interactions and cable forces show reasonable consistency with large-scale experiments. Systematic simulations with varying flow–barrier height ratios ε and flow dynamics are performed to examine the evolving mechanisms of load sharing and transmission and quantify the ε-dependent load–deflection modes. The ratio ε is found to bear a strong, positive correlation with the key barrier response in three typical modes. The post-peak barrier deformations experience shrinkages with ε ≤ 0·6 and expansions when ε > 0·6. This study helps to improve understanding of the load–deflection mechanisms for practical design of flexible barriers in mitigating debris flows.
Nomenclatural validation of Ichthyosaura alpestris bakonyiensis subsp. nov. (Amphibia: Salamandridae) from western Hungary
Authors: Vörös Judit
Published: November 2022

Taxonomic subdivision of Ichthyosaura alpestris (then Triturus) was recognized by Dely in 1964 in his dissertation. While other subspecies were described in other publications, he did not publish the name Triturus alpestris bakonyiensis in valid form according to ICZN. Therefore the nomenclatural validation of this subspecies is given here.
New species and records of Afrotropical Campopleginae IV. (Hymenoptera: Ichneumonidae)
Authors: Vas Zoltán
Published: November 2022

Seven new species of Afrotropical Campopleginae (Hymenoptera: Ichneumonidae) are described: Campoplex andariel sp. nov., Diadegma bruxa sp. nov., Diadegma ekimmara sp. nov., Diadegma katakan sp. nov., Diadegma striga sp. nov. from South Africa; Diadegma endrega sp. nov. and Diadegma kikimora sp. nov. from Kenya. Additionally, a complementary description to the hitherto unknown female of Diadegma densepilosellum (Cameron, 1911) is provided.
Eucrostes indigenata in the collection of the Hungarian Natural History Museum (Lepidoptera: Geometridae)
Authors: Tóth Balázs , Katona Gergely , Bálint Zsolt
Published: November 2022

Altogether 103 specimens of Eucrostes indigenata (Villers, 1789) (Lepidoptera: Geometridae: Geometrinae: Comostolini) are deposited in the Hungarian Natural History Museum. The species was found in the Carpathian Basin in 1895 for the first time, and the latest record dates back to 1974. Although the first record from Grebenac (Serbia) was mentioned in several references around the turn of the 19th and 20th centuries, apparently it was forgotten later, and it was neglected by most authors of the recent decades. The voucher specimen of the first Hungarian record is illustrated. A case of mislabelling in Imre Frivaldszky’s collection is documented. The first record of the species from the Dodecanese Islands (Rhodes), Greece, is presented.
Respuesta del cultivo de arveja (Pisum sativum l.) A la aplicación de abonos orgánicos en el Municipio Pamplona, Norte de Santander
Authors: González Pedraza Ana Francisca , Méndez Ortega Armando José , Quesada Vergara Víctor Rafael
Published: November 2022

La producción de arveja en Pamplona se basa en el uso de altas dosis de fertilizantes químicos que generan daños ambientales y a la salud humana. Por lo tanto, en este estudio se comparó el efecto de diferentes abonos orgánicos con la fertilización química mediante seis tratamientos: T0: control; T1: vermicompost dosis completa (7831,00 kg/ha); T2: vermicompost mitad de la dosis (3915,50 kg/ha) + fertilizante químico (FQ 15N 15P2O5 15K2O) mitad de la dosis (703,50 kg/ha); T3: gallinaza + caprinaza + residuos de caña de azúcar dosis completa (ABOB: 10573,00 kg/ha): T4: ABOB mitad dosis (1407,00 kg/ha) más FQ mitad de la dosis (703,50 kg/ha); T5: FQ dosis completa (1407,00 kg/ha); T6: FQ mitad de la dosis (703,50 kg/ha). Se evaluó: altura de la planta (AP), vainas por planta (NVP); longitud de las vainas (LV) y rendimiento (kg/ha). Se aplicó un análisis de varianza al 5% y una prueba de Tukey para la separación de medias. La AP promedio fue mayor en T2 (172,27 cm). El NVP fue más alto en T3 y T5 con respecto al control, sin embargo, no se observaron diferencias estadísticas entre tratamientos. La LV fue estadísticamente más alta en los tratamientos con respecto al control, aunque no hubo variación entre tratamientos. Sin embargo, no se observaron diferencias estadísticas en el rendimiento entre tratamientos, y T1 y T4 presentaron un rendimiento superior al control de 42,85% y 39,99%, respectivamente. Es posible sustituir o complementar el fertilizante químico con enmiendas orgánicas y reducir el efecto negativo de contaminación que generan sobre el ambiente y la salud de las personas.
Restauración geomorfológica sobre depósitos de relaves: caso de estudio aplicado a la concesión minera Río Blanco, Ecuador
Authors: Moreno Farfán Raúl Andrés
Published: November 2022

Con el fin de contribuir al desarrollo de una industria minera sostenible, de bajo impacto ambiental, que minimice posibles conflictos sociales asociados a esta actividad, este estudio da a conocer: 1) cómo aplicar el concepto de restauración geomorfológica sobre espacios degradados, para establecer propuestas de integración geoambiental, enfocadas a la resturación de zonas mineras alteradas por el depósito de relaves del proyecto minero Río Blanco, provincia del Azuay-Ecuador, basadas en el modelamiento con el método GeoFluv y el software Natural Regrade; y 2) un análisis de los aspectos generales de la actividad minera en el Ecuador, sus precauciones, y la problemática ambiental que pueden presentar los depósitos de relaves. Como resultado se obtuvo un diseño estable que imita condiciones naturales, en el que a pesar de perder una capacidad de almacenamiento del 15% en relación con el diseño convencional, logra maximizar el volumen de relaves a acumular, aumentando significativamente la estabilidad e integración ambiental que tendría el depósito.
Unheard voices as “counter narratives”: Digital storytelling as a way of empowering Muslim women
Authors: Mowafy Mai
Published: November 2022

The paper investigates the use of digital storytelling as a means of empowering Muslim women and enabling them to be heard. It examines how digital stories are used as “counter narratives” by Muslim women to refute public dominant narratives as “counter-narratives” resist stereotypes and taken-for-granted assumptions. “Narrating” or “storytelling” is a powerful mode that can be used in the struggle of changing stereotypes. Currently, in the digital era where we live, stories are narrated digitally using digital tools. Digital stories by Muslim women are refuting “dominant public narratives” and establishing a new “master narrative” of their own that challenges the stereotypes. The study applies an eclectic approach that draws on “multimodal discourse analysis”, “narrative theory” and the previous studies. It analyzes five digital stories by Muslim women and highlights the verbal and non-verbal strategies used to counter dominant public narratives. Based on the multimodal discourse analysis conducted, the study finds that digital stories construct a new “master narrative” through the use of various verbal and non-verbal strategies to counter dominant “public narratives”. As such the study proved that digital stories are used as a powerful tool for empowering Muslim women in refuting misconceptions and creating a better future where diversity and acceptance can prevail.
The effects of using mother tongue in delivering health protocol messages on health attitudes and behaviors: Do gender, age, and education level make any difference?
Authors: Murtadho Fathiaty
Published: November 2022

This study aimed to investigate the effects of using the mother tongue in delivering audiovisual health protocol messages on health attitudes and behavior during the Covid-19 pandemic. The measurement of the investigation into the variables of gender, age, and education level relied on the use of a 2X2X4 factorial design. Following the design, this study involved 240 volunteer participants randomly selected from 34 provincial clusters in the Indonesian territory. The data on the participants’ health attitudes and behaviors were collected through an online questionnaire formulated on five (5) scales. The questionnaire was given to 240 participants as a sample group after receiving health protocol messages conveyed in their mother tongue in a video. The collected data were analyzed by using SPSS and an additional syntax design. The analysis shows that the use of the mother tongue in conveying health protocol messages simultaneously had a significant effect on changes in attitudes and behavior by attending to gender, age, and education levels as contributing factors to the study results. The significant impact on attitude was partially seen from gender and age level factors, while the considerable influence on behavior was seen from gender factors. The other important findings, such as the interaction between factors and the proposed concept of direct persuasive perlocutionary, were also discussed.
Contentious Politics in a Digital World: Studies on Social Activism, Protest, and Polarization
Authors: Gil de Zúñiga Homero , Inguanzo Isabel , Ardèvol-Abreu Alberto
Published: November 2022

In a world of polarized societies and radical voices hogging the public digital sphere, this thematic issue aims at identifying the different strategies of old and new social movements in the extremes of the political debates by focusing on the interplay between polarization, uses of the internet, and social activism. In order to disentangle these interactions, this thematic issue covers a wide range of political settings across the globe. It does so by studying: (a) how opposing activists discuss politics online and its implications for democratic theory; (b) how social media uses and online discussions foster offline protests; (c) how the media and state-led-propaganda frame disruptive and anti-government offline protests and how this situation contributes to polarization in both democratic and non-democratic regimes; and finally (d) how civil society uses digital tools to organize and mobilize around sensitive issues in non-democratic regimes.