scholarly journals Evaluation of antixenosis in soybean against Spodoptera litura by dual-choice assay aided by a statistical analysis model: Discovery of a novel antixenosis in Peking

Author(s):  
Mariko Yano ◽  
Takato Inoue ◽  
Ryu Nakata ◽  
Masayoshi Teraishi ◽  
Naoko Yoshinaga ◽  
...  
2020 ◽  
Vol 10 (2) ◽  
pp. 60-74
Author(s):  
Muhammad Syauqi Mubarok

This article aims to examine and describe the influence of guidance and counseling management on learning discipline. The method used in this research is descriptive analysis method using survey techniques. Data collection techniques that used are documentation studies and field studies. Moreover, the data analysis technique that has been used to answer the research hypothesis is statistical analysis with a path analysis model. The location of the study was at the Ciledug Vocational High School Al-Musaddadiyah Garut, with 85 respondents taking part in the survey. The results of the discussion show that guidance and counseling management has a positive and significant effect on the discipline of learning


2021 ◽  
Vol 14 (20) ◽  
Author(s):  
Li-Gang Yuan ◽  
Xiao-Li Li ◽  
Xin Li ◽  
Yi-Lin Yu ◽  
Li-Guang Chen ◽  
...  

2010 ◽  
Vol 163-167 ◽  
pp. 1262-1267
Author(s):  
Zuo Hua Li ◽  
Jun Teng ◽  
Xue Feng He

This paper presents a numerical strategy to model nonlinear damage behavior of RC members based on level of material. The first part of the paper presents a numerical model of the RC member based on the Timoshenko multifiber beam elements and non-linear damage constitutive laws for concrete, and the effective three dimensional fiber beam-column element model is developed for the nonlinear damage analysis of RC members with VUEL subroutine based on ABAQUS/Explicit platform. In the second part, a nonlinear damage analysis for RC members is established by analyzing the sections of fiber beam column elements, and the member damage index through statistical analysis of concrete fibers damage is defined in the extreme section of beam elements, which can describe the nonlinear damage behavior of RC members under any loadings. Accuracy of the model is identified preliminarily by comparing with the analysis results of solid elements, the results shows that it seems now possible to use this approach to investigate numerically the nonlinear damage behavior of RC members based on level of material.


2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Xiuyun Cui

Background. To accurately evaluate sports social discipline’s academic influence in China, a model of academic influence evaluation of sports social discipline in China based on bibliometrics is proposed. Objective. A statistical model of the academic influence of sports social discipline is constructed, the word frequency statistics method is used to measure the literature, and the semantic characteristic quantity of the sports social discipline academic influence is extracted, using the literature method and logical analysis method to analyze sports’ social value in the Internet era from healthy sports. The combination of sports and medical treatment can comprehensively promote physical and mental health. Methods. The dual semantic feature decomposition method is used to analyze sports social discipline’s academic influence. The statistical analysis model of sports social discipline academic influence is established. The principles of fuzzy pattern recognition include the principle of maximum membership degree and proximity degree. Results. The comprehensive relative closeness of the distribution of literature statistics on sports and social disciplines’ academic influence is constructed. The linear programming analysis of literature statistics is carried out using the standardized grid computing method. Conclusions. The combination of association rule feature extraction and semantic feature extraction is used to realize the quantitative calculation of literature statistics and academic influence. The simulation results show that the statistical analysis of the academic influence of sports and social discipline by this method is accurate, and the level of confidence is high.


2021 ◽  
Vol 14 (17) ◽  
Author(s):  
Li-Gang Yuan ◽  
Xiao-Li Li ◽  
Xin Li ◽  
Yi-Lin Yu ◽  
Li-Gang Chen ◽  
...  

2021 ◽  
Vol 10 (9) ◽  
pp. e21010917852
Author(s):  
Thamires Castro da Silva Pacheco ◽  
Rosileuda Marques de Souza da Costa ◽  
Eydlane do Rosário Costa Campos ◽  
Xaene Maria Fernandes Duarte de Mendonça ◽  
Réia Sílvia Lemos da Costa e Silva Gomes

Objetivo: Incentivar a prática de hábitos alimentares saudáveis a partir de metodologias ativas de ensino-aprendizagem com alunos do ensino fundamental de duas escolas municipais de Belém-PA. Métodos: Trata-se de um estudo do tipo transversal, exploratório, descritivo com abordagem quantitativa e qualitativa; conduzido com 82 escolares, de ambos os sexos, na faixa etária de 8 e 14 anos de duas escolas selecionadas (A e B) com o uso da metodologia ativa de oficina de lanche saudável. A Oficina aconteceu nas dependências das escolas participantes, com a elaboração e degustação do lanche saudável: sanduíche natural, suco da horta e uma fruta. Foi aplicado o teste de aceitabilidade da escala hedônica facial e a análise estatística foi planejada no software SAM (Statistical Analysis Model) e os testes de hipótese foram executados no programa BioEstat, versão 5.3. Resultados: O estudo avaliou a aceitabilidade do lanche saudável através da aplicação da escala hedônica facial. A aceitação dos escolares foi de 87,5% na escola A e de 95,24% na escola B. Conclusão: Há viabilidade na execução de lanches saudáveis com vegetais cultivados nas hortas escolares municipais e os índices de aceitação expressaram resultados favoráveis à implementação.


2020 ◽  
Author(s):  
Enakshi Ghosh ◽  
Richa Varshney ◽  
Radhika Venkatesan

AbstractSuccessful pest management using parasitoids requires careful evaluation of host-parasitoid interactions. Here, we report the performance of larval ecto-parasitoid wasp, Bracon brevicornis (Wesmael) on important agricultural pests, Spodoptera litura (Fabricius) and S. frugiperda (J.E. Smith). Biology of B. brevicornis was studied on different host instars under laboratory and cage setup. In no-choice assay, the parasitoid development was highest on fifth instar S. litura larvae as the wasp laid ∼253 eggs with 62% hatching, 76% pupae formation and 78% adult emergence. Similarly, these parameters were highest on fifth instar S. frugiperda larvae (293 eggs, 57% hatching, 80% pupae formation, 70% adult emergence). In two-choice assay, B. brevicornis preferred fourth or fifth over third instar larvae of both hosts. Successful parasitism depends on host paralysis and suppression of host immunity. B. brevicornis interaction downregulated cellular immunity of both hosts as shown by reduced hemocyte viability and spreading. The percent parasitism rate of B. brevicornis was unaltered in the presence of host plant, Zea mays in cage study. 76 and 84% parasitism was observed on fifth instar larvae of S. litura and S. frugiperda, respectively. We evaluated the performance of B. brevicornis as a biocontrol agent on S. frugiperda in maize field. Our results show 54% average reduction in infestation after release of B. brevicornis. Taken together, we report the performance of B. brevicornis on important insect pests for the first time in laboratory and field conditions. Our findings indicate that B. brevicornis is a promising candidate for integrated pest management.Key messagesWe have evaluated the instar preference and performance of B. brevicornis as a potential biocontrol agent for two serious pests, Spodoptera litura and S. frugiperda.Fifth instar larva was most suitable for B. brevicornis development irrespective of the host species. B. brevicornis attack induced permanent paralysis and down-regulated cellular immunity of both hosts.Our field experiment confirmed B. brevicornis as a promising parasitoid for controlling S. frugiperda, a highly invasive pest of growing concern.


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