Effects of strength,explosive and plyometric training on energy cost of running in ultra-endurance athletes     

Nicola Giovanelli  Paolo Taboga  Enrico Rejc  Stefano Lazzer 《European Journal of Sport Science》2017,17(7):805-813

The aim of the present study was to evaluate the effects of a 12-week home-based strength, explosive and plyometric (SEP) training on the cost of running (Cr) in well-trained ultra-marathoners and to assess the main mechanical parameters affecting changes in Cr. Twenty-five male runners (38.2?±?7.1 years; body mass index: 23.0?±?1.1?kg·m^?2; V˙O₂max: 55.4?±?4.0 mlO₂·kg^?1·min^?1) were divided into an exercise (EG?=?13) and control group (CG?=?12). Before and after a 12-week SEP training, Cr, spring-mass model parameters at four speeds (8, 10, 12, 14?km·h^?1) were calculated and maximal muscle power (MMP) of the lower limbs was measured. In EG, Cr decreased significantly (p?<?.05) at all tested running speeds (?6.4?±?6.5% at 8?km·h^?1; ?3.5?±?5.3% at 10?km·h^?1; ?4.0?±?5.5% at 12?km·h^?1; ?3.2?±?4.5% at 14?km·h^?1), contact time (t_c) increased at 8, 10 and 12?km·h^?1 by mean +4.4?±?0.1% and t_a decreased by ?25.6?±?0.1% at 8?km·h^?1 (p?<?.05). Further, inverse relationships between changes in Cr and MMP at 10 (p?=?.013; r?=??0.67) and 12?km·h^?1 (p?<?.001; r?=??0.86) were shown. Conversely, no differences were detected in the CG in any of the studied parameters. Thus, 12-week SEP training programme lower the Cr in well-trained ultra-marathoners at submaximal speeds. Increased t_c and an inverse relationship between changes in Cr and changes in MMP could be in part explain the decreased Cr. Thus, adding at least three sessions per week of SEP exercises in the normal endurance-training programme may decrease the Cr.  相似文献   

Transgression: Some psychological aspects of social rules in preschool children     

Maria Silvia Barbieri  Paolo Legrenzi 《European Journal of Psychology of Education - EJPE》1988,3(3):327-340

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A Multisystem Psycho-Biological Approach to the Understanding of Parental Dispositions     

Vincenzo Paolo Senese  Atiqah Azhari  Ilaria Cataldo 《Parenting, science and practice》2019,19(1-2):164-167

SYNOPSIS

Does work-family conflict influence parental behaviors and parenting-related emotional states? Through an experimental research approach, River and colleagues showed that work-family conflict influences both emotions and parental behaviors, but the effect is moderated by the quality of the intimate relationship. In this commentary, we offer an interpretation of the results congruent with the recent theoretical approaches that stress the need for a multisystem psycho-biological approach to studying the factors that regulate parenting behaviors. In this perspective, we provide complementary explanations of the observed results and suggest possible future directions for research on these topics.  相似文献   

The Adult Parental Acceptance–Rejection Questionnaire: A Cross-Cultural Comparison of Italian and American Short Forms     

Vincenzo Paolo Senese  Dario Bacchini  Maria C. Miranda  Cecilia Aurino  Fortuna Somma  Giuseppina Amato 《Parenting, science and practice》2016,16(4):219-236

Objective. The aims of this article were to test the measurement invariance of the Italian and American versions of the Adult Parental Acceptance–Rejection Questionnaire and to compare adults’ remembrances of parental acceptance–rejection across the two nations. Design. The Adult Parental Acceptance–Rejection Questionnaire was administered to 564 Italian adults (M = 23.04 years) and 509 U.S. American adults (M = 22.09 years), matched by gender and age. The measurement invariance of the Parental Acceptance–Rejection Questionnaire was first established by means of multi-group confirmatory factor analyses. Results. The Parental Acceptance–Rejection Questionnaire is fully invariant across the two cultures, and adults organize their remembrances of mothers’ and fathers’ parenting around the same four classes of behavior in both nations. Italian and American adults tend to remember their parents as having been quite loving, with Italian parents being remembered as slightly less warm and more hostile than American parents. Conclusions. The full invariance of the Parental Acceptance–Rejection Questionnaire across the two populations represents additional strong evidence for the universality of interpersonal acceptance–rejection theory. Measurement invariance also confirmed that the Adult Parental Acceptance–Rejection Questionnaire (short form) can be used to measure adult remembrances of parental acceptance–rejection across these two populations.  相似文献   

Combination of a Liquid-Dispensing and Micro-Aspiration Device for the Cleaning of Sensitive Painted Surfaces     

Paolo Cremonesi 《文物保护研究》2018,63(6):315-325

Many painted surfaces, not necessarily only those with a contemporary binding media, display high sensitivity to water. The resulting damage, including swelling, leaching out of some components, even partial solubility, may lead to a shrunken, impoverished, de-plasticized, more porous paint film. Different approaches to the cleaning of such surfaces have been developed throughout the years, as awareness of this sensitivity grew worldwide. Some deal with the proper physico-chemical conditions of the aqueous solutions, and others with the proper ways of delivering these solutions to the surface. The strategy proposed in this technical note is concerned with the latter, the application stage, and is based on the combined and simultaneous use of a device capable of delivering a constant, precise amount of the aqueous cleaning solution and a surgical micro-aspirator to immediately remove the soiled solution from the surface and speed up its drying. Also, using a different apparatus, non-polar solvents can be delivered, for cleaning surfaces contaminated by non-polar, more lipophilic soiling materials.  相似文献   

On cross-lingual retrieval with multilingual text encoders     

Litschko  Robert  Vulić  Ivan  Ponzetto  Simone Paolo  Glavaš  Goran 《Information Retrieval》2022,25(2):149-183

Information Retrieval Journal - Pretrained multilingual text encoders based on neural transformer architectures, such as multilingual BERT (mBERT) and XLM, have recently become a default paradigm...  相似文献   

Cultural analysis of mathematical content in teacher education: the case of Elementary Arithmetic Theorems     

Elda Guala  Paolo Boero 《Educational Studies in Mathematics》2017,96(2):207-227

This paper deals with the competence of Cultural (epistemological, historical and anthropological) Analysis of the Content (CAC), which is important for teachers’ awareness and autonomy when dealing with educational choices in a changing cultural and institutional context. We report on an 18-hour intervention in a teacher education course at the undergraduate level attended by 12 participants during the fall of 2013. The goal of the intervention was to enhance participants’ CAC in the case of Elementary Arithmetic Theorems by using the rationality construct derived from Habermas’ work. Qualitative analyses of participants’ discussions showed how the construct was gradually appropriated by them and contributed to their CAC. Trends emerging from quantitative comparisons with previous implementations of the same course provided some evidence regarding the effects of the intervention on the quality of participants’ CAC performances at the end of the course. The method chosen for participants’ assessment and their cultural background will be discussed as conditions for the success of the intervention.  相似文献   

Inter-letter spacing,inter-word spacing,and font with dyslexia-friendly features: testing text readability in people with and without dyslexia     

Jessica Galliussi  Luciano Perondi  Giuseppe Chia  Walter Gerbino  Paolo Bernardis 《Annals of dyslexia》2020,70(1):141-152

Over the last years, several studies have suggested a possible link between dyslexia and deficits in low-level visual processing (e.g., excessive crowding). At the same time, specially designed “dyslexia-friendly” fonts appeared on the market. This class of fonts presents two main features: the particular graphic characteristics of the letterform designed to avoid confusion between similarly shaped letters, and wider inter-letter and inter-word spacing to limit crowding. The literature testing the efficacy of “dyslexia-friendly” fonts in improving reading accuracy and increasing reading speed is controversial. We evaluated the impact of letterform (with vs. without dyslexia-friendly graphic features), inter-letter spacing (standard vs. increased), and inter-word spacing (standard vs. increased) on reading accuracy and speed. Two groups of 64 children each, with and without dyslexia, read aloud 8 equivalent texts. The data collected failed to show any effect from the letterform. As regards spacing, the data showed that reading speed is impaired by an increase in inter-letter spacing not combined with an adequate increase in inter-word spacing.  相似文献   

The influence of reading literacy on mathematics and science achievement     

Elisa Caponera  Paolo Sestito  Paolo M. Russo 《The Journal of educational research》2016,109(2):197-204

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Experimental history: swinging pendulums and melting shellac     

Paolo Palmieri   《Endeavour》2009,33(3):88-92

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