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141.
ABSTRACTThis paper offers a practitioner's view of how continuing professional development (CPD) can help raise achievement in schools. It is one of four papers in this issue linked to a research project in Stoke-on-Trent seeking to raise attainment in schools in deprived communicates. Based on over 20 years’ experience working in and with different schools in the UK, this paper frames a head teacher's perspective, outlining seven strategies she believes are key to improving school performance. These strategies are providing CPD opportunities to all staff rather than just those involved in teaching, planning CPD activities in the light of school development priorities, mentoring and coaching between staff, forming inter-school networks and partnerships, team teaching, peer review and continual assessment of CPD impact. 相似文献
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This article presents FIDJI, a question-answering (QA) system for French. FIDJI combines syntactic information with traditional
QA techniques such as named entity recognition and term weighting; it does not require any pre-processing other than classical
search engine indexing. Among other uses of syntax, we experiment in this system the validation of answers through different
documents, as well as specific techniques for answering different types of questions (e.g., yes/no or list questions). We
present several experiments which show the benefits of syntactic analysis, as well as multi-document validation. Different
types of questions and corpora are tested, and specificities are commented. Links with result aggregation are also discussed. 相似文献
144.
Gradual refinement for application-specific MPSoC design from Simulink model to RTL implementation 总被引:1,自引:0,他引:1
Kai Huang Xiao-lang Yan Sang-il Han Soo-ik Chae Ahmed A. Jerraya Katalin Popovici Xavier Guerin Lisane Brisolara Luigi Carro 《浙江大学学报(A卷英文版)》2009,10(2):151-164
The application-specific multiprocessor system-on-chip (MPSoC) architecture is becoming an attractive solution to deal with increasingly complex embedded applications, which require both high performance and flexible programmability. As an effective method for MPSoC development, we present a gradual refinement flow starting from a high-level Simulink model to a synthesizable and executable hardware and software specification. The proposed methodology consists of five different abstract levels: Simulink combined algorithm and architecture model (CAAM), virtual architecture (VA), transactional accurate architecture (TA), virtual prototype (VP) and field-programmable gate array (FPGA) emulation. Experimental results of Motion-JPEG and H.264 show that the proposed gradual refinement flow can generate various MPSoC architectures from an original Simulink model, allowing processor, communication and tasks design space exploration. 相似文献
145.
Josefa León-López Carmen Calderón-Soto Matías Pérez-Sánchez Belén Feriche Xavier Iglesias Diego Chaverri 《European Journal of Sport Science》2018,18(6):832-841
Using a controlled parallel group longitudinal trial design, we investigated the effects of different training interventions on the prooxidant/antioxidant status of elite athletes: living and training at moderate altitude for 3 (Hi-Hi3) and 4 weeks (Hi-Hi), and for 4 weeks too, living high and training high and low (Hi-HiLo) and living and training at sea level (Lo-Lo). From 61 swimmers, 54 completed the study. Nitrites, carbonyls, and lipid peroxidation (LPO) levels were assessed in plasma. Enzymatic antioxidants glutathione peroxidase (GPx) and glutathione reductase (GRd), and non-enzymatic antioxidants total glutathione (GST), reduced glutathione (GSH) and oxidized glutathione (GSSG) were analysed in the erythrocyte fraction. At the end of the intervention, nitrites levels were similar in all altitude groups but higher than in the Lo-Lo controls (P?=?.02). Hi-HiLo had greater GPx activity than Hi-Hi and Hi-Hi3 during most of the intervention (P?≤?.001). GRd activity was higher in Lo-Lo than in Hi-Hi at the end of the training camp (P?≤?.001). All groups showed increased levels of LPO, except Lo-Lo, and carbonyls at the end of the study (P?≤?.001). Training at altitude for 3 or 4 weeks drives oxidative stress leading to cellular damage mainly by worsening the antioxidant capacities. The GSSG/GSH ratio appears to be related to perceived exertion and fatigue. The stronger antioxidant defence showed by the Hi-HiLo group suggests an inverse relationship between redox alterations and performance. Further studies are required to investigate the role of oxidative stress in acclimatization, performance, and health. 相似文献
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Slep AM Heyman RE Snarr JD Foster RE Linkh DJ Whitworth JD 《Child abuse & neglect》2011,35(10):783-796
Objective
Research on and intervention for child emotional abuse and emotional aggression toward children have been severely hampered because there have been no agreed-upon, clinically usable definitions.Methods
We have (a) proposed and field-tested a set of criteria to operationally define child emotional abuse for clinical settings and (b) used these criteria to design a parent-report measure of parental emotional aggression and child emotional abuse that could be used in research. In this paper, we review the development and field trials of these criteria for making substantiation decisions.Results
Agreement between master reviewers and field decisions was extremely high in a 5-site development trial (96% agreement, κ = .89) and a 41-site dissemination trial (90% agreement, κ = .73). We compare these criteria to other research criteria in the literature. We then present data collected using a self-report measure designed to parallel these criteria from an anonymous online survey of US Air Force personnel and their spouses. The final sample (N = 52,780) was weighted to be representative of the United States civilian population. The prevalence of parents’ emotionally aggressive acts was much higher than the prevalence of emotional abuse (acts plus impact), but rates of parents’ acts of emotional aggression were lower than those typically reported in the literature. Additional analyses tested for differential effects due to gender of perpetrator (i.e., mothers or fathers), age of victim, and clustering within families. These factors did not drive rates of aggression or abuse.Conclusions
In sum, the criteria developed and proposed appear to support reliable clinical decision making regarding child emotional abuse and can be translated to research survey tools that better capture the continuum of parents’ emotional aggression and child emotional abuse than the measures that are currently available, advancing the state of the science with respect to child emotional abuse. 相似文献150.
Although the literature on school choice rationalities is extensive, different authors interpret the processes of school choice for poor families in different ways. Positions vary between those that consider that poor families have the same capacity to choose as middle class families and those that value structural factors as constraints for choice. The objective of this article is to identify different school choice rationalities of low income families in the context of a highly marketized education system such as Chile. Beyond the restrictions of a different nature that poor families face, this social group mostly expresses high levels of reflexivity and complex sets of preferences when it comes to choosing schools for their children. This article tries to overcome the dualistic division that prevails in school choice literature between choice as an outcome of utility maximization for all, and choice as a denial for deprived groups. 相似文献