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21.
The Consultation Self-Efficacy Scale (CSES) was developed and validated to assess school psychologists' perceptions of self-efficacy for engaging in school-based consultation. A pilot study with graduate students (N = 92) indicated high internal consistency (α = .99) and provided evidence of discriminant validity, as a group with more consultation experience had significantly higher total self-efficacy scores (M = 512.25) than a moderately experienced group (M = 437.35). Subsequently, a sample of 347 practicing school psychologists completed a revised CSES, consistently endorsing moderate to high levels of consultation self-efficacy (M = 404.08, SD = 51.73). Although consultation self-efficacy was hypothesized to be a multidimensional construct, exploratory factor analysis indicated a single-factor structure. Construct validity of the instrument was supported by significant correlations between school psychologists' consultation self-efficacy ratings and perceptions of their ability to respond to hypothetical consultation referral problems (r = .69, p < .01), and regression analysis found that years of experience and time spent consulting with teachers predicted psychologists' self-efficacy scores.  相似文献   
22.
In current research on achievement goal theory, most researchers differentiate between performance-approach and performance-avoidance goal orientations. Evidence from prior research and from several previously published data sets is used to highlight that the correlation is often rather large, with a number of studies reporting correlations above .50. The large magnitude of this correlation raises questions and warrants further investigation. The size of the correlation also varies substantially across studies; thus, several potential moderators were considered. Minimal evidence for moderation was found, with little variability in relations as a function of fear of failure, culture, and specificity of the goal assessment. There was some evidence of variability in the correlation based on age, perceived competence, and assessment instrument. The article concludes by highlighting theoretical, methodological, and instructional questions that arise as a result of the large correlation and making recommendations and guidance for research, instructional practice, and theory advancement.  相似文献   
23.
In order to design and predict the dechlorination processes for remediating the halogenated aromatic compounds in the biobarrier system applied in situ,an anaerobic continuous-flow column was set up with the introduction of an enriched 2,4,6-trichlorophenol(TCP) reductive dechlorinating consortium.The fates of TCP and its metabolites were simulated according to the first-order sequential dechlorination kinetic model.The enriched TCP anaerobic dechlorinating consortium dechlorinated 100 μmol/L TCP to 4-chlorophenol(4-CP) via 2,4-dichlorophenol(DCP) in 10 d.The consortium was predominated with the phylum of Firmicutes and Bacteroidetes,based on the PCRdenaturing gradient gel electrophoresis(DGGE) analysis.After the consortium was applied to the column,the experimental data in the steady state were fitted by the least square method,and the first-order dechlorination kinetic constants from TCP to 2,4-DCP,from 2,4-DCP to 4-CP and from 4-CP to phenol,were 1.58 d-1,2.23 d-1 and 0.206 d-1,respectively.According to the fitting results,the required biobarrier width for the complete remediation of TCP,2,4DCP and 4-CP were 126 cm,130 cm and 689 cm,respectively.The dechlorination/degradation of 4-CP must be increased when the technology is applied to the real site.  相似文献   
24.
专业知识交流问题是知识管理中的关键问题之一.本文从影响知识交流的认知障碍因素出发研究专业知识交流问题,并进而开发一个支持专业知识交流的可视化工具.从知识交流的一般过程入手,本文分析指出,人和人之间的专业知识交流过程与专家系统领域广泛研究的知识获取过程具有很好的可类比性.从而,借鉴第二代专家系统把领域知识和控制知识分离的思路,分析了知识交流中知识表述过程和知识理解过程本质上是通过 "知识组织结构"构造领域知识模型的过程;这一过程与专家系统中通过控制知识把领域知识组合起来形成推理链条的过程具有内在一致性.从这一模型构造的思想出发,提出一个可视化的专业知识交流支持工具实验型软件原型.  相似文献   
25.
Path tracking control of autonomous agricultural mobile robots   总被引:3,自引:0,他引:3  
In a tractor automatic navigation system, path planning plays a significant role in improving operation efficiency. This study aims to create a suboptimal reference course for headland turning of a robot tractor and design a path-tracking controller to guide the robot tractor along the reference course. A time-minimum suboptimal control method was used to generate the reference turning course based on the mechanical parameters of the test tractor. A path-tracking controller consisting of both feedforward and feedback component elements was also proposed. The feedforward component was directly determined by the desired steering angle of the current navigation point on the reference course, whereas the feedback component was derived from the designed optimal controller. Computer simulation and field tests were performed to validate the path-tracking performance. Field test results indicated that the robot tractor followed the reference courses precisely on flat meadow, with average and standard lateral devia- tions being 0.031 m and 0.086 m, respectively. However, the tracking error increased while operating on sloping meadow due to the employed vehicle kinematic model.  相似文献   
26.
This study examined how returnees who experienced more adjustment difficulties (Bumpies) differed from those who experienced fewer (Smoothies). Three open-ended items from 512 returnees1 were analyzed. Ward et al.’s [Ward, C., Bochner, S., & Furnham, A. (2001). The psychology of culture shock. East Sussex: Routledge] adjustment model was used as the theoretical framework for this study.Prior to examining the open-ended items, preliminary analyses were conducted to confirm that these two groups, in fact, differed from each other in their returnee experience. Results suggested that one function, which we named “Lack of Acceptance,” differentiated the two groups; Smoothies felt more accepted by others compared to Bumpies.In the next stage, the open-ended questions related to the items that loaded significantly on the function identified by the discriminant analysis were coded and analyzed. Results suggested that the two groups’ experiences were similar in some respects (e.g., being stereotyped as a returnee, language-related problems) and different in others (e.g., Smoothies felt more accepted by others compared to Bumpies, Bumpies reported more incidents of discrimination and bullying). Results underscored Ward et al.’s [Ward, C., Bochner, S., & Furnham, A. (2001). The psychology of culture shock. East Sussex: Routledge] assertion that adjustment is a result of a two-way interaction between individual and societal variables.  相似文献   
27.
ABSTRACT

The purpose of this study was to investigate the effects of slope on three-dimensional running kinematics at high speed. Thirteen male sprinters ran at high speed (7.5 m/s) on a motorised treadmill in each a level and a 5.0% slope condition. Three-dimensional motion analysis was conducted to compare centre of mass (CoM) energetics, pelvis segment and lower limb joints kinematics. We found that contact time was not affected by the slope, whereas flight time and step length were significantly shorter in uphill compared to level running. Uphill running reduced negative CoM work and increased positive CoM work compared to level running. Ankle, knee and hip joints were more flexed at initial ground contact, but only the knee was more extended at the end of stance in uphill compared to level running. Additionally, the hip joint was more abducted, and the free leg side of the pelvis was more elevated at the end of stance in uphill running. Our results demonstrate that joint motion must be developed from a more flexed/adducted position at initial contact through a greater range of motion compared to level running in order to meet the greater positive CoM work requirements in uphill running at high speed.  相似文献   
28.
In this paper, we propose a dialogue-based navigation system for narrow areas (e.g., buildings, etc.). In particular, we develop Campus Navigation Partner System (CNPS), intended for the use by freshmen (first-year students) who are likely to get lost in the new environment on the university campus (with the campus of Kitami Institute of Technology set as the experimental environment). The CNPS operates on a smartphone and has the functions of facility navigation and indoor information presentation. Indoor environment navigation is typically a problematic task because GNSS (Global Navigation Satellite System) signals cannot be received with sufficient accuracy within concrete walls. Therefore, we utilized natural language dialogue as a navigation method that guides the users within the facility using navigation messages and images. To investigate the effectiveness of the constructed system, we conducted practical experiments with freshmen and senior students of the university and evaluated the performance of the navigation functionality. Moreover, we investigated the general impressions of the system which we evaluated separately with both freshmen and senior students to clarify the differences in evaluation viewpoints between freshmen and users experienced in the campus environment (graduate students, etc.).  相似文献   
29.
Psychological research suggests that foreign‐language vocabulary acquisition recruits the phonological loop for verbal working memory. To depict the neural underpinnings and shed light on the process of foreign language learning, we conducted functional magnetic resonance imaging of Japanese participants without previous exposure to the Uzbek language using learning of novel Uzbek words. During encoding, spoken Uzbek words and corresponding visual objects were shown, and subjects either overtly repeated the words (phonological rehearsal) or overtly rehearsed numbers (phonological suppression). Phonological rehearsal improved the encoding performance. A learning‐related decrease in rehearsal‐specific activation was found in the left fusiform gyrus, right inferior temporal gyrus, and right cerebellum. Recollection of the phonologically rehearsed words activated the right cerebellum and left fusiform gyrus more prominently than recollection of the phonologically suppressed words in a performance‐dependent manner. The phonological loop might provide the temporal and fragile registration of the articulatory pattern that is converted into a more durable form in the right cerebellum, which is in turn integrated with the object information in the fusiform gyrus.  相似文献   
30.
Known and novel noun extensions: attention at two levels of abstraction   总被引:1,自引:0,他引:1  
Two experiments tested the hypothesis that names direct attention at two levels of abstraction: Known names direct attention to the properties most relevant to the specific category; novel names direct attention to the shape, the property most generally relevant across known object names. English-speaking and Japanese-speaking 3-year-olds were shown a novel object that was named with (a) known nouns referring to things similar in shape or similar in material and color, and (b) novel nouns. Given known nouns, children attended to shape when the name referred to a category organized by shape, but they did not when the name referred to a category organized by other properties. Children generalized novel names by shape. The results are discussed within the debate between shape-based and taxonomic categories.  相似文献   
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