992 resultados para 37.05
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目的:探究空难发生地不同人格特征和不同职业期望值高中生在空难发生后心理应激的差异。方法:采用《艾森克人格问卷(EPQ)成人式》、《空难发生地高中生心理应激问卷I》、《空难发生地高中生心理应激问卷II》和自编的《职业期望问卷》,分别在空难发生后一周内对非空难发生地(呼和浩特)某重点中学396名高中生、空难发生地(包头)某重点中学390名高中生和空难发生一年后包头387名高中生进行问卷调查。全部数据使用SPSS11.5 for Windows进行统计、分析处理。结果:在空难发生后一周内,两地高中生焦虑性心理应激水平有显著性差异,P<0.05,而人格特征和职业期望值没有显著性差异。空难发生地重点班学生与非重点班学生焦虑性心理应激水平有显著性差异,P<0.05;焦虑性心理应激水平与神经质分数和职业期望值呈正相关,相关系数分别为:r=0.42和r=0.37, P<0.01和P<0.05。而在空难发生一年后空难发生地重点班学生与非重点班学生的焦虑性心理应激水平没有显著性差异,P>0.05;重点班学生与非重点班学生的职业期望值有显著性差异,P<0.05;空难发生一年后重点班学生的心理应激水平与神经质分数和职业期望值均呈零相关。结论:职业期望和神经质是空难发生地高中生焦虑性心理应激水平的影响因素。对于空难发生地重点班特别是高神经质和高职业期望值的学生在空难发生后,应及时给予心理干预,使其尽快从负面情绪中摆脱出来,以免其学习和生活受到影响。
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In order to analyze the test anxiety of Beijing's high school students, relevant factors affecting test anxiety and how those factors have effect on the test anxiety of those high school students, a cross-sectional study had been conducted among 2,089 students randomly selected from 15 high schools in Beijing, using the Test Anxiety Scale(TAS), Parenting Style Scale (PSS) and Academic Aggregate Graphic (AAG). Five months later, 194 students from one of those high schools were retested with TAS with students remaining anonymous. In the retest, the classes and birth dates of those students were strictly matched. This paper is composed of three parts to examine the issue. The first part examines the test anxiety among high school students in Beijing and establishes the model; the second part conducts a comparative study of issues related to test anxiety and academic performance; the third part examines the factors affecting test anxiety and establishes the model. Results showed that: 1. The reliability and validity of TAS are satisfied and can meet survey requirement. The 25-item version of TAS turned out to have equal or even better performance compared with the original 37-item version. 2. Incidence of test anxiety in high schools of Beijing: 57.9 percent of samples have an overall score at or higher 15. 55 percent of male student samples have a score at or higher than 15 while that for female student samples is 61 percent. A score of 20 refers to fairly serious test anxiety and 31.9 percent of samples have a score over 20. 28.1 percent of the male student samples have a score of over 20 while that for female student samples is 35.9 percent. 3. The effect of grade and sex and the interaction between the two factors are statistically significant. Female students have higher test anxiety than male students and the level of test anxiety varies from grade to grade. 4. Samples are divided into two groups, one with test anxiety and the other without. The academic performance gap between the two groups is very significant. There is a significant negative correlation between academic score and test anxiety. 5. There is a negative correlation between test anxiety and mastery goal orientation and a positive correlation between test anxiety and performance goal orientation. Students with higher academic self-efficiency have lower test anxiety. The more one thinks study is valuable, the lower his/her test anxiety is. Those whose parents communicate smoothly with them have lower test anxiety. Those whose parents have an inconsistent communication style have higher test anxiety. 6. Achievement goal is mediate variable for the effect of lack of values on test anxiety. 7. The indirect effect of introduction of achievement goal and parenting style, including communication, monitoring and communication consistence, on test anxiety is significant. Key words: Test anxiety,reliability, validity, self-efficiency,parenting style,achievement goal orientation, academic values, academic score
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Self-conscious emotions (guilt, shame, embarrassment, pride, etc) are social emotions, and involve complex appraisals of how one’s behavior has been evaluated by the self and other people according to some value standards. Self-conscious emotions play an important role in human life by arousing and regulating human action tendencies, feeling and thoughts, which can promote people to work hard in achievement and task fields, maintain good interpersonal relationship according with social morality and expectation. The present study aimed to examine complex self-conscious emotional understanding capabilities in junior middle school students with and without learning disabilities, how the self-conscious emotions generate, and relationship between self-conscious emotions and self-representation in academic and interpersonal fields. Situational experimental methods were used in this research, and the results would give further supports for learning disabilities intervention. The main results of present research are as follows. 1. The study included 4 parts and 6 experiments. The aim of study 1 was to explore whether juveniles with learning disabilities understood complex self-conscious emotions differently from juveniles without learning disabilities. We surveyed the self-conscious emotions understanding of 37 learning disabilities and 45 non-learning disabilities with the emotional situation stories. The results indicated that the self-conscious emotional recognition in others for learning disabilities was lower than that of non-learning disabilities in different emotional recognition tasks. Moreover, children with learning disabilities were more inclined to recognize emotions in themselves as elemental emotions, however, children without learning disabilities were more inclined to recognize emotions in themselves as self-conscious emotions. 2. The aim of study 2 was to explore the generative mechanism of self-conscious emotions in academic and interpersonal fields with the method of situational experiments, namely to examine whether the self-discrepancy could cause self-conscious emotions for learning disabilities. 84 learning disabilities (in experiment 1) and 80 learning disabilities (in experiment 2) participated in the research, and the results were as follows. (1) Self discrepancy caused participants’ self-conscious emotions effectively in academic and interpersonal fields. One’s own and parents’ perspercive on the actual-ideal self-discrepancy both produced dejection-related emotions (shame、embarrassment) and agitation-related emotions (guilt). (2)In academic fields, children with learning disabilities caused higher level negative self-conscious emotions (embarrassment, shame, and guilt) and lower level positive self-conscious emotion (pride). However, there were no differences of self-conscious emotions for children with and without learning disabilities in non-academic fields. 3. The aim of study 3 was to explore what influence had self-conscious emotions on self-representation for learning disabilities with the method of situational experiments. 57 learning disabilities (in experiment 1) and 67 learning disabilities (in experiment 2) participated in the research, and the results were as follows. (1)The negative self-conscious for learning disabilities could influence their positive or negative academic and positive interpersonal self-representation stability, the ways in which self-evaluation of ability mediate these effects. However, there was no significant effect for the negative self-conscious and self-evaluation of ability predicting negative interpersonal self-representation stability. (2)The stability level of positive academic and interpersonal self-representation for learning disabilities was lower than that of non-learning disabilities. There was no significant difference of the negative interpersonal self-representation stability for children with and without learning disabilities in the positive self-conscious valence condition. However, the stability level of negative interpersonal self-representation for learning disabilities was lower than that of non-learning disabilities in the negative self-conscious valence condition. 4. The aim of study 4 was to explore the intervention effects for self-conscious emotions training course on emotional comprehension cability. 65 learning disabilities (34 in experimental group, and 31 in control group) participated in the research. The results showed that self-conscious emotions course boosted the self-conscious emotions apprehensive level for children with learning disabilities.
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Plano Diretor; Embrapa Monitoramento por Satélite
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O abacaxizeiro, Ananas comosus, é atacada por diversas doenças nas regiões produtoras no mundo tanto em condições de campo quanto em pós-colheita, com reflexos negativos na produtividade e qualidade dos frutos. Entre as doenças, aquelas causadas por fungos ocorrem em maior intensidade, enquanto causado por bactérias e por vírus ocorrem em menor escala. Além disto a ocorrência de anomalias de causa abiótica também é responsável por perdas significativas na produção e qualidades dos frutos. De todas as doenças que atacam o abacaxizeiro no Brasil a fusariose, causada pelo fungo Fusarium subglutinans (Wr. Rg.) Nelson, Tousson & Marasas, f. sp. ananas, Ventura, Zambolim & Gilbertson, é a mais destrutiva, incitando perdas significativas à produção de frutos. Considerando que as cultivares Gold, Red Spanish e Smooth Cayenne entre outras, amplamente cultivadas no mundo, são suscetíveis ao agente causal da fusariose, esta doença pode constituir uma séria ameaça à abacaxicultura mundial.
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Para a execução do Manejo Integrado de Pragas é necessário se fazer inspeções (amostragem ou vistoria) das pragas, doenças e seus inimigos naturais, de modo a fornecer dados seguros para as decisões a serem tomadas, não só para o controle das pragas mas também para a preservação dos inimigos naturais. A identificação de pragas e doenças e a proposição do uso de técnicas de Manejo Integrado de Pragas (MIP) são fortes aliados da implantação da produção integrada no cultivo da lima ácida Tahiti. O maior aliado no controle otimizado nos pomares é o monitoramento da dinâmica populacional das pragas e seus inimigos naturais, e da evolução espacial e temporal das doenças, aliando conhecimentos epidemiológicos e climáticos.
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2003
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The task in text retrieval is to find the subset of a collection of documents relevant to a user's information request, usually expressed as a set of words. Classically, documents and queries are represented as vectors of word counts. In its simplest form, relevance is defined to be the dot product between a document and a query vector--a measure of the number of common terms. A central difficulty in text retrieval is that the presence or absence of a word is not sufficient to determine relevance to a query. Linear dimensionality reduction has been proposed as a technique for extracting underlying structure from the document collection. In some domains (such as vision) dimensionality reduction reduces computational complexity. In text retrieval it is more often used to improve retrieval performance. We propose an alternative and novel technique that produces sparse representations constructed from sets of highly-related words. Documents and queries are represented by their distance to these sets. and relevance is measured by the number of common clusters. This technique significantly improves retrieval performance, is efficient to compute and shares properties with the optimal linear projection operator and the independent components of documents.
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Desenvolvimento de germoplasma e cultivares de soja adaptados às várias regiões ecológicas e aos vários sistemas de produção (04.2000.321-01); Desenvolvimento de cultivares e linhagens de soja para a região Centro-sul do Brasil (04.2000.321-02); Producão de semente genética de cultivares e linhagens de soja para região Centro-sul do Brasil (04.2000.321-03); Desenvolvimento de genótipo tolerantes à acidez do solo e com alta eficiência na utilização de nutrientes (04.2000.321-04); Desenvolvimento de germoplasma de soja com alta qualidade de semente e de grão (04.2000.321-05); Desenvolvimento de germoplasma de soja com resistência a insetos e adaptado às diversas regiões agroecológicas (04.2000.321-06); Desenvolvimento de germoplasma de soja com características adequadas para o consumo humano in natura e para a indústria de alimentos (04.2000.321-07); Desenvolvimento de cultivares de soja para o Estado do Mato Grosso (04.2000.321-14); Desenvolvimento de cultivares de soja para o Estado de Minas Gerais (04.2000.321-16); Desenvolvimento de cultivar de soja para o estado de Goiás (04.2000.321-17); Desenvolvimento de cultivares de soja para o norte do cerrado brasileiro (04.2000.321-20); Difusão de cultivares de soja para os Estados do Paraná, São Paulo e Santa Catarina (04.2000.321-23); Caracterização de cultivares e linhagens de soja quanto a época de semeadura; Genética quantitativa das características de interesse do melhoramento - previsão e exploração do potencial genético da soja (04.2000.321-37); Difusão de tecnologia visando a utilização da soja e seus derivados na alimentação huma (04.2000.321-04); Transferência de tecnologia para o sistema de produção de soja; Vitrine de tecnologias da Embrapa no Estado do Paraná (18.2000.701-03); Transferência de tecnologias recomendadas para a cultura da soja no Paraná e no Norte de Santa Catarina, através do sistema treino e visita (18.0.99.322-04).
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2006
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Introdução; Clorador Embrapa: purificando a água antes do consumo; Fossa séptica biodigestora: como transformar esgoto em adubo; Jardim filtrante: como tratar a água do banho e das pias da casa; Curiosidades sobre as tecnologias de saneamento básico rural da Embrapa.
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The phototherapy effects in the skin are related to biomodulation, usually to accelerate wound healing. However, there is no direct proof of the interrelation between the effects of low-level laser therapy (LLLT) and light-emitting diode (LED) in neuropeptide secretion, these substances being prematurely involved in the neurogenic inflammation phase of wound healing. This study therefore focused on investigating LLLT and LED in Calcitonin gene-related peptide (CGRP) and substance P (SP) secretion in healthy rat skin. Forty rats were randomly distributed into five groups with eight rats each: Control Group, Blue LED Group (470 nm, 350 mW power), Red LED Group (660 nm, 350 mW power), Red Laser Group (660 nm, 100 mW power), and Infrared Laser Group (808 nm, 100 mW power) (DMCA (R) Equipamentos Ltda., So Carlos, So Paulo, Brazil). the skin of the animals in the experimental groups was irradiated using the punctual contact technique, with a total energy of 40 J, single dose, standardized at one point in the dorsal region. After 14 min of irradiation, the skin samples were collected for CGRP and SP quantification using western blot analysis. SP was released in Infrared Laser Group (p = 0.01); there was no difference in the CGRP secretion among groups. Infrared (808 nm) LLLT enhances neuropeptide SP secretion in healthy rat skin.
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Background: Ototoxicity is a known side effect of combined radiation therapy and cisplatin chemotherapy for the treatment of medulloblastoma. the delivery of an involved field boost by intensity modulated radiation therapy (IMRT) may reduce the dose to the inner ear when compared with conventional radiotherapy. the dose of cisplatin may also affect the risk of ototoxicity. A retrospective study was performed to evaluate the impact of involved field boost using IMRT and cisplatin dose on the rate of ototoxicity.Methods: Data from 41 medulloblastoma patients treated with IMRT were collected. Overall and disease-free survival rates were calculated by Kaplan-Meier method Hearing function was graded according to toxicity criteria of Pediatric Oncology Group (POG). Doses to inner ear and total cisplatin dose were correlated with hearing function by univariate and multivariate data analysis.Results: After a mean follow-up of 44 months (range: 14 to 72 months), 37 patients remained alive, with two recurrences, both in spine with CSF involvement, resulting in a disease free-survival and overall survival of 85.2% and 90.2%, respectively. Seven patients (17%) experienced POG Grade 3 or 4 toxicity. Cisplatin dose was a significant factor for hearing loss in univariate analysis (p < 0.03). in multivariate analysis, median dose to inner ear was significantly associated with hearing loss (p < 0.01). POG grade 3 and 4 toxicity were uncommon with median doses to the inner ear bellow 42 Gy (p < 0.05) and total cisplatin dose of less than 375 mg/m(2) (p < 0.01).Conclusions: IMRT leads to a low rate of severe ototoxicity. Median radiation dose to auditory apparatus should be kept below 42 Gy. Cisplatin doses should not exceed 375 mg/m(2).
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RESUMO: O presente trabalho teve como objetivo avaliar a influência de densidades de semeadura de genótipos de girassol em suas características agronômicas. O experimento foi realizado no campo experimental do IFMT, Campus Campo Novo do Parecis - MT, entre os meses de fevereiro e junho de 2015. O delineamento experimental utilizado foi de blocos casualizados, em esquema fatorial 5 x 5, sendo cinco genótipos de girassol AGUARÁ 04, GNZ NEON, HÉLIO 251, SYN 045 e SYN 3950HO) e cinco populações de plantas (30.000, 37.500, 45.000, 52.500 e 60.000 plantas ha-1), com 3 repetições. Foram analisadas as características altura de planta, diâmetro da haste, tamanho do capítulo, massa de mil aquênios e produtividade de aquênios. Os dados obtidos foram submetidos à análise de variância, seguido de teste Tukey para cultivares e análise de regressão para as diferentes populações de plantas (p<0,05). O genótipo SYN 045 apresentou a maior produtividade de aquênios, 1.708,90 kg ha-1 enquanto que a população de 60.150 plantas ha-1 foi a que possibilitou a maior produtividade de aquênios, 2.391,92 kg ha-1. ABSTRACT: This study aimed to evaluate the influence of sowing density of sunflower genotypes on their agronomic characteristics. The experiment was conducted in the experimental field of IFMT, Campus Campo Novo do Parecis - MT, between February and June 2015. The experimental design was randomized blocks in a factorial 5 x 5, five sunflower genotypes (AGUARÁ 04, GNZ NEON, HÉLIO 251, SYN 045 and SYN 3950HO) and five plant populations (30,000, 37,500, 45,000, 52,500 and 60,000 plants ha-1) with 3 repetitions. Plant height, stem diameter, chapter length, mass thousand achenes and achenes productivity were analyzed. The data were submitted to analysis of variance followed by Tukey test for cultivars and regres. -
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Hutzler, S., Cox, S.J., Janiaud, E. and Weaire, D. (2007) Drainage induced convection rolls in foams. Colloids and Surfaces A: Physicochemical and Engineering Aspects Volume 309, Issues 1-3, 1 November 2007, Pages 33-37 A Collection of Papers Presented at the 6th Eufoam Conference, Potsdam, Germany, 2-6 July, 2006 Sponsorship: European Space Agency (14914/02/NL/SH, 14308/00/NL/SG) (AO-99-031) CCN 002 MAP Project AO-99-075); Science Foundation Ireland (RFP 05/RFP/PHY0016); Royal Society; UWA Learned Societies.