三元能量对马铃薯生长发育的影响

运用三元能量作用于马铃薯，其比对照组产量提高１９．１８％，结果个数增加１８．３０％，单薯重量减少０．５４％，经统计分析，前两项达到显著水平第３项差异不显著，证明了三元能量可促使马铃薯增产。     

浅谈技工院校商贸类专业教学模式

分析技工院校商贸类专业发展的现状及存在的问题,提出商贸类专业的教学模式:划分专业群,采用模块化教学;实施学分制教育;加强商贸类专业教学的实践能力培养。在分析这些模式的优势的基础上提出保障措施。     

独立学院电子技术基础课程教学改革初探

电子技术基础是一门理论性和实践性很强的专业基础课,在分析如何建立具有独立学院特色的课程教学模式的基础上,结合工作实践从培养目标、教学内容、考核方式入手,提出了理论与实践相互渗透的电子技术基础课程教学模式。     

中药糖平煎对Ⅱ型糖尿病大鼠血糖、血脂、血流变的影响

目的:观察中药糖平煎对Ⅱ型糖尿病大鼠血糖(FBG)、血脂(TG)、血流变及球结膜微循环的影响.方法:采取小剂量链脲佐菌素(STZ)腹腔注射结合高糖高脂高热量饲料喂养的方法制备实验性Ⅱ型糖尿病大鼠模型,中药糖平煎连续治疗4周.结果:中药糖平煎可以显著降低模型大鼠的血糖、血脂,明显改善血流变和球结膜微循环的异常状态.结论:中药糖平煎对Ⅱ型糖尿病大鼠糖脂代谢、血流变异常和微血管环境具有良好治疗作用.     

CT与静脉肾盂造影在肾结核诊断中的比较

目的:通过研究肾脏结核在CT、IVP两种影像中的表现与病理所见的关系,来揭示肾结核的影像学表现在二种检查方法之间的互补性,以期达到早发现、早确诊、早治疗的目的.方法:搜集130例经病理证实为肾结核的病例,回顾性总结,对CT平扫及增强、IVP二种检查方法进行比较.结果:CT诊断符合率93.0%,不能明确诊断7%,IVP诊断符合率36.6%,未能明确诊断63.4%.结论:CT能清楚显示整个肾脏的横断面图像,对肾实质及肾盂、肾盏的形态结构均显示清楚,且有很高的密度分辨率,对空洞及肾内钙化的检出率明显高于平片及肾盂造影.增强扫描及延迟扫描可以用于肾功能的判断、与肾盂旁囊肿、肾盂肿瘤的鉴别.所以肾结核的诊断,CT明显优于肾盂造影.     

涎腺粘液表皮样癌术后转移的临床病理因素分析

目的:对经额面外科手术治疗的59例涎腺粘液表皮样癌患者进行回顾性研究,分析影响患者术后转移的相关临床病理因素.方法:通过SPSS 10.0软件分析,筛选出影响涎腺粘液表皮样癌术后转移的主要临床病理因素.结果:粘液表皮样癌低分化,癌巢边界形态为Ⅲ型,镜下坏死患者术后易发生转移.结论:分化程度,癌巢边界形态和镜下坏死是影响术后转移的主要临床病理因素.     

Alterations to the orientation of the ground reaction force vector affect sprint acceleration performance in team sports athletes

A more horizontally oriented ground reaction force vector is related to higher levels of sprint acceleration performance across a range of athletes. However, the effects of acute experimental alterations to the force vector orientation within athletes are unknown. Fifteen male team sports athletes completed maximal effort 10-m accelerations in three conditions following different verbal instructions intended to manipulate the force vector orientation. Ground reaction forces (GRFs) were collected from the step nearest 5-m and stance leg kinematics at touchdown were also analysed to understand specific kinematic features of touchdown technique which may influence the consequent force vector orientation. Magnitude-based inferences were used to compare findings between conditions. There was a likely more horizontally oriented ground reaction force vector and a likely lower peak vertical force in the control condition compared with the experimental conditions. 10-m sprint time was very likely quickest in the control condition which confirmed the importance of force vector orientation for acceleration performance on a within-athlete basis. The stance leg kinematics revealed that a more horizontally oriented force vector during stance was preceded at touchdown by a likely more dorsiflexed ankle, a likely more flexed knee, and a possibly or likely greater hip extension velocity.     

Why do bad balls get wickets? The role of congruent and incongruent information in anticipation

Skilled anticipation is underpinned by the use of kinematic and contextual information. However, few researchers have examined what happens when contextual information suggests an outcome that is different from the event that follows. We aimed to bridge this gap by manipulating the relationship between contextual information and final ball location in a cricket-batting task. We predicted that when contextual information is congruent with the eventual outcome then anticipation would be facilitated. In contrast, when contextual information is incongruent, this would lead to a confirmation bias on kinematic information and result in decreased anticipation accuracy. We expected this effect to be larger in skilled performers who are more able to utilise context. Skilled and less-skilled cricket batters anticipated deliveries presented using a temporally occluded video-based task. We created conditions whereby contextual information and event outcome were either congruent or incongruent. There was a significant skill by condition interaction (p < 0.05). The skilled group anticipated significantly more accurately than the less-skilled group on the congruent trials. Both groups anticipated less accurately on incongruent trials, with the skilled participants being more negatively affected. Skilled performers prioritise contextual information and confirmation bias affects the use of kinematic information available later in the action.     

病毒肺炎合剂HPLC指纹图谱的研究

目的:应用HPLC法研究病毒肺炎合剂的指纹图谱。方法:以绿原酸为参照物,YWG-C18(250mm×4.6mm,10μm)色谱柱,柱温30℃,流动相为0.4%磷酸水溶液-乙腈,线性梯度洗脱,流速1ml/min,检测波长280nm。结果:在该色谱条件下,病毒肺炎合剂水提取液有14个共有特征指纹峰。结论:该方法稳定、可靠、重现性好,可作为质量控制方法。