Effects of weightlifting exercise,traditional resistance and plyometric training on countermovement jump performance: a meta-analysis     

Ricardo Berton  Manoel E. Lixandrão  Claudio M. Pinto e Silva 《Journal of sports sciences》2018,36(18):2038-2044

Jump performance is considered an important factor in many sports. Thus, strategies such as weightlifting (WL) exercises, traditional resistance training (TRT) and plyometric training (PT) are effective at improving jump performance. However, it is not entirely clear which of these strategies can enable greater improvements on jump height. Thus, the purpose of the meta-analysis was to compare the improvements on countermovement jump (CMJ) performance between training methods which focus on WL exercises, TRT, and PT. Seven studies were included, of which one study performed both comparison. Therefore, four studies comparing WL exercises vs. TRT (total n = 78) and four studies comparing WL exercises vs. PT (total n = 76). The results showed greater improvements on CMJ performance for WL exercises compared to TRT (ES_diff: 0.72 ± 0.23; _95%CI: 0.26, 1.19; P = 0.002; Δ % = 7.5 and 2.1, respectively). The comparison between WL exercises vs. PT revealed no significant difference between protocols (ES_diff: 0.15 ± 0.23; _95%CI: ?0.30, 0.60; P = 0.518; Δ % = 8.8 and 8.1, respectively). In conclusion, WL exercises are superior to promote positive changes on CMJ performance compared to TRT; however, WL exercises and PT are equally effective at improving CMJ performance.  相似文献   

The societal impact of the emerging quantum technologies: a renewed urgency to make quantum theory understandable     

Pieter?E.?VermaasEmail author 《Ethics and Information Technology》2017,19(4):241-246

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Help requests in tutoring at 30 months: Adaptation to the social situation     

Mina Verba  Haydée Marcos 《European Journal of Psychology of Education - EJPE》1998,13(3):309-322

This study lies at the crossroads between the study of tutoring interactions and the study of communicative skills in young children. Our goal was to show that in a tutor-novice problem solving situation, the frequency and the nature of the novice’s requests vary with the type of tutor. Three groups of twelve 30 months-old children (novices) were observed in interaction with a child tutor, their mother, and a female experimenter as they performed two assembly tasks. We examined the frequency, form, and content of the children’s requests for help, and their connection with some of the tutor’s actions. The main results showed that the children made more requests of adult tutors, and that direct forms were more frequent with the mother than with a child tutor. The results also indicated that these differences were not due to request-inducing or inhibiting actions on the part of the tutor. It is concluded that young novices are capable of adapting their help requests to the characteristics of their tutors.  相似文献   

What is the future of electrical impedance spectroscopy in flow cytometry?     

Furkan Gke  Paolo S. Ravaynia  Mario M. Modena  Andreas Hierlemann 《Biomicrofluidics》2021,15(6)

More than 20 years ago, electrical impedance spectroscopy (EIS) was proposed as a potential characterization method for flow cytometry. As the setup is comparably simple and the method is label-free, EIS has attracted considerable interest from the research community as a potential alternative to standard optical methods, such as fluorescence-activated cell sorting (FACS). However, until today, FACS remains by and large the laboratory standard with highly developed capabilities and broad use in research and clinical settings. Nevertheless, can EIS still provide a complement or alternative to FACS in specific applications? In this Perspective, we will give an overview of the current state of the art of EIS in terms of technologies and capabilities. We will then describe recent advances in EIS-based flow cytometry, compare the performance to that of FACS methods, and discuss potential prospects of EIS in flow cytometry.  相似文献   

Preservice teacher inquiry: Creating a space to dialogue about becoming a social justice educator     

Marvin Lynn  Renée Smith-Maddox 《Teaching and Teacher Education》2007

In this paper, we reflect on our experience with an experimental inquiry component within a teacher education program in a large urban city on the West Coast of the United States. This learning space, which is referred to as “Inquiry,” promotes the integration of theoretical and practical knowledge through reflection and dialogue. We highlight how this inquiry-oriented process enabled preservice teachers to reflect on and dialogue about existing ideals of social justice and equity with regard to teaching diverse learners. This process acknowledges that alternative learning spaces in teacher education programs that address ways of observing, questioning, and inventing may well be a valuable strategy in the development of social justice educators. While the process is a valuable one, we offer a critical analysis of our own processes. In particular, we discuss the need for the creation and implementation of strategies that help pre-service teachers build their capacity to teach in diverse urban classrooms.  相似文献   

Dynamics of GeoGebra ecosystem in mathematics education     

Gökçe  Semirhan  Güner  Pınar 《Education and Information Technologies》2022,27(4):5301-5323

Education and Information Technologies - The purpose of this study was to investigate the trends of GeoGebra related studies. We focused on the articles published between 2009 and 2021 and existed...  相似文献   

Treating children's aggressive behavior problems using cognitive behavior therapy with virtual reality: A multicenter randomized controlled trial     

Sophie C. Alsem  Anouk van Dijk  Esmée E. Verhulp  Tycho J. Dekkers  Bram O. De Castro 《Child development》2023,94(6):e344-e361

This multicenter randomized controlled trial investigated whether interactive virtual reality enhanced effectiveness of Cognitive Behavioral Therapy (CBT) to reduce children's aggressive behavior problems. Boys with aggressive behavior problems (N = 115; M_age = 10.58, SD = 1.48; 95.7% born in Netherlands) were randomized into three groups: CBT with virtual reality, CBT with roleplays, or care-as-usual. Bayesian analyses showed that CBT with virtual reality more likely reduced aggressive behavior compared to care-as-usual for six of seven outcomes (ds 0.19–0.95), and compared to CBT with roleplays for four outcomes (ds 0.14–0.68). Moreover, compared to roleplays, virtual reality more likely enhanced children's emotional engagement, practice immersion, and treatment appreciation. Thus, virtual reality may be a promising tool to enhance CBT effectiveness for children with aggressive behavior problems.  相似文献   

The effectiveness of web-based Mathematics instruction (WBMI) on K-16 students’ mathematics learning: a meta-analytic research     

Akın  Ayça 《Education and Information Technologies》2022,27(6):8015-8040

Education and Information Technologies - Given the increasing prevalence of web technology, web-based mathematics environments have been increasingly widely used in mathematics education for the...  相似文献   

Counselor educators’ views on cognitively complex trainees: A Q method study     

Alexandra Gantt-Howrey  Gülşah Kemer 《Counselor Education & Supervision》2023,62(4):297-310

Our Q method exploration of counselor educators’ perspectives of minimally acceptable cognitive complexity (CC) in trainees at the end of internship yielded two factors: Trainee's Conceptual Integration Ability and Trainee's Ability to Apply Integrated Knowledge. Implications for teaching, supervision, and research pertinent to assessment of and enhancement of CC conclude.  相似文献