功能动作筛查在中国空手道国家队的应用研究

通过对空手道国家队运动员功能动作筛查测试结果的分析,提出建议,旨在对国家队备战亚运会提供数据及理论的支持。研究以功能动作筛查方法为研究对象,采用文献资料法:查阅国内外关于功能动作筛查的信效度以及实验的文献;实验法:利用功能动作筛查测试进行实验,获得数据;数理统计法:利用SPSS18.0软件进行数据分析;问卷调查法:对国家队队员发放问卷;专家访谈法:对国家队教练、国内外空手道裁判进行访谈。经过研究得出以下结论:1)功能动作筛查结果与空手道国家队运动员的身体指标(BMI)、身体既往伤病情况、运动成绩之间不具有明显相关性;与运动员训练年龄存在相关性。训练年龄超过6 a的运动员筛查结果明显优于训练年龄低于6 a的运动员。2)中国空手道国家队运动员双踝的背屈封闭运动链运动不良,运动员双膝和双髋的屈曲不良现象比较明显。3)中国空手道国家队运动员身体躯干部位神经募集和反射的稳定性相对薄弱,身体躯干部位的力量表现比其他部位差。     

Assessing the Development of Young Children in Child Care: A Survey of Formal Assessment Practices in One State

With the current emphasis on program accountability and appreciation of the importance of early learning and timely identification of delays, early childhood developmental assessment in child care centers is crucial. In Florida, a state that supports local control of child assessment decisions, counties were surveyed to determine the specific tools and formal assessment procedures for children birth to 5 in subsidized child care. Sixty-one counties responded for a 91% return rate. Survey results were examined according to experts’ recommendations for best practices in child assessment. Most counties used multiple tools to assess multiple domains of child development with age-appropriate instruments. Many did not involve parents in the assessment process or use tools connected to the child care curriculum. The survey results underscore the complexity of implementing assessment systems for young children in child care.     

Evaluating a screening and support system for early intervention in Wales

The concept of early screening and response to intervention has been recognised as key to success in literacy. In this article, an implementation model, which combined a published screening test with a free open access short‐term intervention, was piloted and evaluated over several years. Significant improvements in risk levels for literacy difficulties were identified following a series of 12‐week interventions for 1 hour weekly, split into three small group sessions. In phase 1a, 54% of 224 children were no longer ‘at risk’, and in Phase 1b, 51% of 151 children were no longer ‘at risk’, with evidence for transfer to reading over time. In phase 2a, the approach included whole class screening, (670 children, 25% risk at pre‐test reduced to ‘no‐risk’ in 17.4%). In Phase 2b, targeted support was provided for 306 children in reception, year 1 and year 2. After the intervention, 57% of these children were no longer ‘at‐risk’, with reception children making greatest progress. The model has successfully impacted on greater awareness of ALN and approaches to intervention in the teachers involved. Interviews with users indicated a high level of satisfaction and the approach has been recommended for wider application, following further research.     

整数线性规划问题解法探究

整数线性规划是线性规划问题的重要组成部分，由于整数线性规划问题还没有找到一种有效的解法，目前只能求解中小规模的整数线性规划问题，而建立在线性规划理论基础上的整数解集筛选法是求解整数线性规划问题的一种比较简洁而有效的方法。     

p16INK4a基因对NIH3T3细胞衰老影响的研究

p16^INK4a是细胞周期负调控因子，在多种细胞的衰老过程中起着关键作用．为了研究p16^INK4a的表达对小鼠成纤维细胞即NIH3T3细胞生长增殖的影响，将真核表达载体PRetro-onpl6通过逆转录病毒介导的方法将其转染至NIH3T3细胞中，经嘌呤霉素筛选，获得整合有p16基因的稳定细胞株NIH3T3／pRetro-on-p16，并通过脱氧四环素的诱导，观察到NIH3T3／pRetro-on-p16衰老的显著特征：细胞宽大铺展、形状不规则、折射率低等，并且细胞生长速度明显减慢．     

微生物絮凝剂产生菌的筛选与生理生化鉴定

采用稀释分离法和划线分离法从活性污泥中获得30多株纯化菌株,筛选获得2株高效絮凝菌株,利用发酵培养液对其进行絮凝实验并进行菌种鉴定。两株菌的絮凝率均在85％左右,两株菌的初步鉴定为芽孢杆菌属（N5）和变绿链霉菌（G15）。     

基于信息敏感性的指标筛选与赋权方法研究

为了解决现有主成分法存在的无法赋权及合理筛选指标的问题,提出了基于信息敏感性的指标筛选与赋权模型。本文的主要创新与特色:一是通过主成分占原始指标集信息的比例与每个被保留的主成分对指标的偏导数乘积的和,反映该指标对原始指标集信息的影响程度。依据信息敏感性指标筛选标准确定累积信息含量,通过累积信息含量的大小遴选指标。二是通过指标的信息敏感性占全部指标信息敏感性的比例进行指标的赋权,以使指标的权重反映不同指标相对信息含量的大小。最后,通过一个实例将提出的指标筛选方法与现有主成分指标筛选方法进行了对比分析,以此说明所提出的指标筛选方法的可行性及有效性。     

胞外高产超氧化物歧化酶菌株的筛选及其发酵工艺条件研究

对产胞外超氧化物歧化酶的14株菌株进行筛选，其中9251菌株产酶活性最高，为绿色木霉(Trichoderma viride)．对Trichoderma viride 9251的发酵工艺进行了优化，在优化的培养条件下，发酵液产酶活性达85U／mL。同时，还考察了金属离子对9251菌株产酶活性的影响。     

香料烟育苗新方式研究与筛选

结合香料烟栽培密度大,需苗量大,育苗成本高的特性,对烤烟漂浮育苗、湿润育苗、砂培育苗和立体育苗技术进行改进和研究,以降低育苗成本,筛选出适合在香料烟生产上推广应用的育苗新方式.结果表明,香料烟育苗可采取调制棚与育苗棚＂一棚两用＂、调制膜与育苗棚膜＂一膜两用＂和调制场地与育苗场地＂一地两用＂的方式,降低生产成本;改进后的漂浮育苗技术成本低,可作为香料烟生产推广应用的首选育苗方式;湿润育苗烟苗素质较好,但育苗管理成本比漂浮育苗高,可在劳动力充足、烟农积极性高的区域推广.     

英国绿色技术项目筛选评估方法与实践

英国绿色投资银行(GIB)是全球第一家绿色投资银行,2017年完成私有化并更名为绿色投资集团(GIG),主要开展绿色技术项目的投资与转化,支持全球绿色经济增长。研究绿色投资集团绿色技术项目的评估指标体系、筛选流程、领域及成效,通过分析其项目筛选评估机制、明确关注的投资项目领域等,发现其既重视技术项目的绿色属性,同时关注技术项目的经济回报和市场价值。借鉴绿色投资集团的绿色技术项目筛选评估经验,有益于为我国绿色技术银行的快速建设和持续发展提供指导和支撑。