Time-course of running treadmill adaptation in novice treadmill runners     

Laura Simoni  Guido Pasquini  Silvia Pancani  Federica Vannetti  Claudio Macchi  Silvia Pogliaghi 《Journal of sports sciences》2020,38(20):2321-2328

ABSTRACT

Studies on running biomechanics and energetics are usually conducted on a treadmill. To ensure that locomotion on a treadmill is comparable to locomotion overground, participants need to be expert in the use of the device. This study aimed to identify the number and duration of sessions needed to obtain stable measurements for spatiotemporal and metabolic parameters in unexperienced treadmill runners. Fourteen male recreational runners performed three 15-min treadmill running trials in different days at a submaximal speed. Spatiotemporal and metabolic parameters were registered at minutes: 5, 10, 15 and their within-trial and between-trial changes were analysed using a two-way repeated measures ANOVA and Bonferroni post-hoc test. Within-trial differences were found in step frequency (decreased over time), Step Length and Contact Time (increased), reaching stability at different time points. Ventilator parameters increased, reaching stability after 5–10 min, while heart rate increased progressively over time. The only between-trial differences were an increase in step length and a decrease in step frequency at min 1, between trials 1 and 3. In conclusion, at least three running trials of 15 min are required to familiarize with the device. The last 5 min of the third trial can be regarded as stable measurements.  相似文献   

Verification of the stomatal conductance of Nebbiolo grapevine     

Stefania PRINO  Federico SPANNA  Claudio CASSARDO 《重庆大学学报(英文版)》2009,8(1):17-24

Wine is one of the most important Italian export products, and Nebbiolo is one of the most respected Italian grapes. In the summer of 2007, a measurement campaign was carried out in a Nebbiolo vineyard located in Vezza d＇Alba, near Cuneo, Italy. Using a gauge of trade gases and some other instruments, we recorded the stomatal conductance and also some physiological parameters useful for estimating the dependence of stomatal conductance on environmental variables. The goal of this experiment was improving the parameterization of grapevine evapotranspiration through the assessment of the stomatal conductance and, in particular, of the functional dependence of the stomatal conductance on the following variables： the photosynthetically active radiation, the atmospheric temperature, the atmospheric moisture deficit, and the carbon dioxide concentration. The observations allowed us to check and, in some cases, to adapt the existing general parameterizations found in literature. The results showed some significant differences with the existing parameterizations concerning the atmospheric temperature, the atmospheric moisture deficit, and the carbon dioxide concentration. The parameterizations obtained in this experiment, although referring to a specific plant and site （namely the Nebbiolo at Vezza d＇Alba）, could allow assessment of the best environmental conditions under which the Nebbiolo grapevine production is the best, and in future could be tested for other grapevines or climates.  相似文献   

Similarity caching in large-scale image retrieval     

Fabrizio Falchi  Claudio Lucchese  Salvatore Orlando  Raffaele Perego  Fausto Rabitti 《Information processing & management》2012

Feature-rich data, such as audio-video recordings, digital images, and results of scientific experiments, nowadays constitute the largest fraction of the massive data sets produced daily in the e-society. Content-based similarity search systems working on such data collections are rapidly growing in importance. Unfortunately, similarity search is in general very expensive and hardly scalable.  相似文献   

Do Italian dyslexic children use the lexical reading route efficiently? An orthographic judgment task     

Chiara Valeria Marinelli  Paola Angelelli  Alessandra Notarnicola  Claudio Luzzatti 《Reading and writing》2009,22(3):333-351

The study uses an orthographic judgment task to evaluate the efficiency of the lexical reading route in Italian dyslexic children. It has been suggested that Italian dyslexic children rely prevalently on the sub-word-level routine for reading. However, it is not easy to test the lexical reading route in Italian directly because of the lack of critical items (irregular words), so visual lexical decision tasks and the comprehension/detection of pseudo-homophones are often used. While the former may also be solved on the basis of visual familiarity or phonological re-codification, the latter also involves conceptual and syntactic skills. Eleven dyslexic children participated in the study, performing an orthographic judgment task on stimuli with two phonologically plausible spellings, of which only one was orthographically correct. Their performance was compared with those of 11 proficient readers. The dyslexic children showed selective impairment in detecting phonologically plausible errors, but their performance was normal when required to judge errors inserted in words with regular orthography, i.e., devoid of orthographic ambiguity, and for which a sub-word-level reading procedure is sufficient to guarantee a good performance. Overall, data are coherent with a diagnosis of surface dyslexia, with most children showing defective orthographic lexical processing.

Paola AngelelliEmail:

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工程教育的全球合作     

Claudio Borri  Elisa Cuberti  雷环  王玲 《高等工程教育研究》2009,(6)

Erasmus主题网络(Erasmus Thematic Networks)已经成功地为欧洲高等教育的发展做出了贡献:取得了若干重要成果,同时也指出了不久的将来所面临的挑战。这些成果和挑战包括:完成博洛尼亚进程、在工程教育领域发展和推广欧洲互认机制(例如EUR-ACE)、保护大学的自主权、吸引最优秀的年轻人参与工程研究、提供好的终身学习(LLL)机会、在不降低科学和技术学习水平的前提下扩展非技术技能的内容、加强企业和大学在教育问题上的合作。欧洲工程教育肯定要越过老欧洲大陆的界限,以确保质量和提高其对整个大西洋地区和新兴经济体的吸引力为目标。在不久的未来,欧洲学术网络必将向全世界开放,与全球的学者、学生、工业界和专业人士合作。我们已经通过国际工程教育学会联盟(IFEES)为这样的合作提供了一把保护伞,以期为这个目标提供良好的服务。即使这些任务看上去似乎已经很令人欣慰了,但是仍然不够。基于总体成本效益比而不只是GDP增长的分析,使我们有了更长远的眼光,我们还应考虑工程教育其他方面的重要因素,并且克服在科学/技术文化和人文文化之间固有的鸿沟。从社会和环境的角度看,如果工程教育希望为维护整个地球的良好状况做出贡献,这...  相似文献   

The links between students’ relationships with teachers,likeability among peers,and bullying victimization: the intervening role of teacher responsiveness     

Longobardi  Claudio  Ferrigno  Serena  Gullotta  Giulia  Jungert  Tomas  Thornberg  Robert  Marengo  Davide 《European Journal of Psychology of Education - EJPE》2022,37(2):489-506

Highly responsive teachers tend to foster behaviors that are low in conflict and high in prosociality, among their students, leading to a positive classroom climate and to a decrease in bullying victimization. However, little is known about the interaction between teacher responsiveness and both student–teacher, and student–student relationship characteristics, in influencing students’ bullying victimization at school. Here, we examined student–teacher relationship quality and students’ likeability among peers as predictors of in-school victimization. Additionally, we investigated the moderating role of teacher responsiveness over this link. Study sample consisted of 386 early-adolescent students (55.2% female, mean age [SD] = 12.17 [0.73]) and 19 main teachers (females, n = 14). Findings indicated that students’ exposure to victimization was positively associated with student–teacher conflict and negatively associated with likeability among classroom peers. Teacher responsiveness did not show a significant direct association with bullying victimization. However, when teachers showed high responsiveness, the strength of the association between student–teacher conflict and students’ likelihood of bullying victimization was slightly increased. The present study highlights the importance of considering the role of teacher responsiveness when modeling the link between student and teacher relationship quality and in school bullying victimization.

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The student–teacher relationship quality in children with selective mutism     

Claudio Longobardi  Laura Badenes‐Ribera  Francesca Giovanna Maria Gastaldi  Laura Elvira Prino 《Psychology in the schools》2019,56(1):32-41

Selective mutism (SM) is a rare anxiety disorder that compromises children's daily life during critical periods of early development. Because school is a prime context for the manifestation of the disorder, the aim of this study was to investigate the quality of the student–teacher relationship and its effects on behavior and work, and on social and relational skills. The sample consisted of 75 children—15 were affected by SM, with 60 in the control group—and 15 teachers. The results showed greater difficulty on the teacher's part to establish a relationship based on affective closeness with a child affected by SM, compared to that with unaffected children. Nevertheless, an encouraging picture emerges of the inclusion and integration of the child with SM among peers and therefore in the class group.  相似文献   

Foreword     

Claudio Borri 《European Journal of Engineering Education》2003,28(2):137-138

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Distance learning for small and medium size companies in Italy     

Dr  Claudio Bucciarelli 《British journal of educational technology : journal of the Council for Educational Technology》1989,20(1):63-65

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Quantitative evaluation of alternative field normalization procedures     

Yunrong Li  Filippo Radicchi  Claudio Castellano  Javier Ruiz-Castillo 《Journal of Informetrics》2013,7(3):746-755

Wide differences in publication and citation practices make impossible the direct comparison of raw citation counts across scientific disciplines. Recent research has studied new and traditional normalization procedures aimed at suppressing as much as possible these disproportions in citation numbers among scientific domains. Using the recently introduced IDCP (Inequality due to Differences in Citation Practices) method, this paper rigorously tests the performance of six cited-side normalization procedures based on the Thomson Reuters classification system consisting of 172 sub-fields. We use six yearly datasets from 1980 to 2004, with widely varying citation windows from the publication year to May 2011. The main findings are the following three. Firstly, as observed in previous research, within each year the shapes of sub-field citation distributions are strikingly similar. This paves the way for several normalization procedures to perform reasonably well in reducing the effect on citation inequality of differences in citation practices. Secondly, independently of the year of publication and the length of the citation window, the effect of such differences represents about 13% of total citation inequality. Thirdly, a recently introduced two-parameter normalization scheme outperforms the other normalization procedures over the entire period, reducing citation disproportions to a level very close to the minimum achievable given the data and the classification system. However, the traditional procedure of using sub-field mean citations as normalization factors yields also good results.  相似文献