Effects of running experience on coordination and its variability in runners     

Pablo Floría  Alberto Sánchez-Sixto  Reed Ferber  Andrew J. Harrison 《Journal of sports sciences》2018,36(3):272-278

The purpose of this study was to examine the differences in coordination variability in running gait between trained runners and non-runners using continuous relative phase (CRP) analysis. Lower extremity kinematic data were collected for 22 participants during the stance phase. The participants were assigned to either a runner or non-runner group based on running volume training. Segment coordination and coordination variability were calculated for selected hip–knee and knee–ankle couplings. Independent t-tests and magnitude-based inferences were used to compare the 2 groups. There were limited differences in the CRP and its variability among runners and non-runner groups. The runners group achieved moderately lower coordination compared with non-runners group in the phase angle for hip abduction/adduction and knee flexion/extension. The runners tended to show moderately lower coordination variability in the phase angle for knee flexion/extension and subtalar inversion/eversion in comparison to non-runners group. These results suggested that levels of experience as estimated from weekly training volume had little influence on coordination and its variability.  相似文献   

User-centred versus system-centred evaluation of a personalization system     

Alberto Díaz  Antonio García  Pablo Gervás 《Information processing & management》2008

Some of the most popular measures to evaluate information filtering systems are usually independent of the users because they are based in relevance judgments obtained from experts. On the other hand, the user-centred evaluation allows showing the different impressions that the users have perceived about the system running. This work is focused on discussing the problem of user-centred versus system-centred evaluation of a Web content personalization system where the personalization is based on a user model that stores long term (section, categories and keywords) and short term interests (adapted from user provided feedback). The user-centred evaluation is based on questionnaires filled in by the users before and after using the system and the system-centred evaluation is based on the comparison between ranking of documents, obtained from the application of a multi-tier selection process, and binary relevance judgments collected previously from real users. The user-centred and system-centred evaluations performed with 106 users during 14 working days have provided valuable data concerning the behaviour of the users with respect to issues such as document relevance or the relative importance attributed to different ways of personalization. The results obtained shows general satisfaction on both the personalization processes (selection, adaptation and presentation) and the system as a whole.  相似文献   

Dependency parsing with finite state transducers and compression rules     

Pablo Gamallo  Marcos Garcia 《Information processing & management》2018,54(6):1244-1261

This article proposes a syntactic parsing strategy based on a dependency grammar containing formal rules and a compression technique that reduces the complexity of those rules. Compression parsing is mainly driven by the ‘single-head’ constraint of Dependency Grammar, and can be seen as an alternative method to the well-known constructive strategy. The compression algorithm simplifies the input sentence by progressively removing from it the dependent tokens as soon as binary syntactic dependencies are recognized. This strategy is thus similar to that used in deterministic dependency parsing. A compression parser was implemented and released under General Public License, as well as a cross-lingual grammar with Universal Dependencies, containing only broad-coverage rules applied to Romance languages. The system is an almost delexicalized parser which does not need training data to analyze Romance languages. The rule-based cross-lingual parser was submitted to CoNLL 2017 Shared Task: Multilingual Parsing from Raw Text to Universal Dependencies. The performance of our system was compared to the other supervised systems participating in the competition, paying special attention to the parsing of different treebanks of the same language. We also trained a supervised delexicalized parser for Romance languages in order to compare it to our rule-based system. The results show that the performance of our cross-lingual method does not change across related languages and across different treebanks, while most supervised methods turn out to be very dependent on the text domain used to train the system.  相似文献   

Fatness and fitness in relation to functional movement quality in overweight and obese children     

Pablo Molina-Garcia  Jairo H Migueles  Cristina Cadenas-Sanchez  Irene Esteban-Cornejo  Jose Mora-Gonzalez  Maria Rodriguez-Ayllon 《Journal of sports sciences》2019,37(8):878-885

This study aimed to investigate the independent and combined associations between several fatness indicators and fitness components with functional movement quality in overweight/obese children. A total of 56 children (33 girls, aged 8–12) classified as overweight/obese according to the World Obesity Federation standard cut points, participated in this study. Participants underwent assessments of fatness [body mass index (BMI), waist circumference, and bioelectrical impedance measures], fitness [1 repetition maximum bench and leg press, and ALPHA test battery], and functional movement quality [4 tests from Functional Movement Screen ^TM (FMS)]. All fatness outcomes, except waist circumference, were negatively associated with total FMS score, after controlling for cardiorespiratory fitness. Cardiorespiratory fitness, lower limbs muscle strength, and speed-agility were positively associated with the total FMS score, regardless of BMI. Our results suggest that children with greater fatness indicators demonstrate lower functional movement quality independently of their fitness level, whereas children with better fitness level (i.e. cardiorespiratory fitness, lower limbs muscular strength, and speed-agility) demonstrate greater functional movement quality independently of their fatness level. However, children´s weight status seems to be more determinant than their fitness level in terms of functional movement quality, whereas being fit seems to moderately attenuate the negative influence of fatness.  相似文献   

Yeast-Leavened Laminated Salty Baked Goods: Flour and Dough Properties and Their Relationship with Product Technological Quality     

Ana E. de la Horra  María Eugenia Steffolani  Gabriela N. Barrera  Pablo D. Ribotta  Alberto E. León 《Food Technology and Biotechnology》2015,53(4):446-453

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Sites,funds and spheres of exchange in a Clean Development Mechanism project     

Pablo Jaramillo 《Journal of Cultural Economy》2018,11(4):277-290

This article analyses the implementation and operation of a wind farm in ancestral indigenous lands in Colombia. A wind farm operates at different levels: creating energy, social programmes, jobs, carbon credits and revenues. However, such emerging objects are distributed unevenly. To understand the hierarchy in place in the carbon market, this article explains the disconnection between clean energy production sites and carbon funds in which credits are created. Given the fundamental need to understand the creation of objects of property that are, nevertheless, not fully interchangeable between the site and the fund, this article aims to draw renewed attention to the concept of spheres of exchange. The argument is built upon ethnographic fieldwork undertaken on-site in the Utility Company’s offices and the World Bank headquarters.  相似文献   

Going Against the Grain in an Urban Arizona High School: Secondary Preservice Teachers Emerging as Culturally Responsive Educators     

Pablo Ramirez  Margarita Jimenez-Silva  April Boozer  Ben Clark 《Multicultural Perspectives》2016,18(1):20-28

This one year study examines the journey of two preservice urban high-school teachers in Arizona as they enact Culturally Responsive Teaching in a year-long student teaching residency. Factors that influenced their Culturally Responsive Teaching practices are discussed along themes that emerged from interviews and classroom observations. Recommendations for ways of integrating Culturally Responsive Teaching in teacher education programs are provided.  相似文献   

Study of context influence on classifiers trained under different video-document representations     

Pablo Bermejo  Hideo Joho  Joemon M. Jose  Robert Villa 《Information processing & management》2011

The problem of content-based video retrieval continues to pose a challenge to the research community, the performance of video retrieval systems being low due to the semantic gap. In this paper we consider whether taking advantage of context can aid the video retrieval process by making the prediction of relevance easier, i.e. if it is easier for a classification system to predict the relevance of a video shot under a given context, then that context has potential in also improving retrieval, since the underlying features better differentiate relevant from non-relevant video shots. We use an operational definition of context, where datasets can be split into disjoint sub-collections which reflect a particular context. Contexts considered include task difficulty and user expertise, among others. In the classification process, four main types of features are used to represent video-shots: conventional low-level visual features representing physical properties of the video shots, behavioral features which are based on user interaction with the video shots, and two different bag-of-words features obtained from the Automatic Speech Recognition from the audio of the video.  相似文献   

头戴百角的奥拉夫     

Pedro Pablo Sacrist&#;n  Crazier 《英语辅导》2017,(7)

Olav was the most terrible of all the 1)Vikings.With just his bare hands,he could defeat a bull in seconds.To let people know who he was,he adorned his 2)helmet with a hundred 3)horns,and on his 4)cloak were a thousand 5)precious stones,one stone for each enemy he had defeated.  相似文献   

En Confianza: Co-constructing Professional Strength and Voice With Latina Early Childhood Educators     

Rosario Ordoñez-Jasis  Susana Y. Flores  Pablo M. Jasis 《Journal of Early Childhood Teacher Education》2013,34(1):4-19

It is well documented in the literature that early pre-K reading experiences prepare children for the benefits of formal literacy instruction in the later grades. This is particularly true for young children from nonmainstream backgrounds. The objective of this article is to share the findings of a 4-year qualitative study investigating the relationships forged and teaching ideologies constructed by Latino pre-K teachers via critical “storying” within a culturally responsive professional learning community. Findings suggest that as teachers learned to recognize, listen to, and learn from the personal/professional individual and collective life histories of each other, their teaching efficacy was enhanced increasing their ability to develop effective literacy instruction that was culturally and linguistically responsive to the needs of young children.  相似文献