儒家“五常”思想在大学生创新创业精神培育中的运用

中国儒家“五常”思想承载了丰富的创新创业品质。高校创新创业教育应从儒家“五常”思想中汲取精髓,深入挖掘其中有助于培育大学生创新创业教育的思想资源,积极将儒家“五常”思想融入大学生创新创业精神培育的全过程。儒家“五常”思想与大学生创新创业精神培育在修身立业、财富积累、人际交往、终身学习、信誉至上等观念的培养上具有高度的契合性。儒家“五常”思想融入大学生创新创业教育,需要在观念、思想和文化上与时俱进,实现“三个转变”,设置切实可行的实践路径。     

高校思政“金课”建设的教学探索——以“伟大民族精神”课程为例

在新时代背景下,“金课”概念和标准的提出为高校思想政治理论课改革创新提供了新的契机,建设思政“金课”势在必行。“伟大民族精神”是习近平新时代中国特色社会主义思想的重要内容之一,也是高校思想政治理论课的重要教学内容。基于“金课”建设的标准,以“伟大民族精神”内容教学的视角,着力探讨高校思政“金课”建设之道,提高思政课教育教学的实效性。     

关注贫困家庭学龄前儿童的美国艺术博物馆课程及其启示——以克拉克艺术博物馆艺术开端课程为例

美国克拉克艺术博物馆在全美“开端计划”基础上,结合艺术博物馆的公共教育资源策划和实施了面向贫困家庭学龄前儿童的艺术开端课程,这种发生在艺术博物馆里的正式幼儿教育课程对我国正在蓬勃兴起和发展的美术馆教育有重要的启发意义。通过研究艺术开端课程的策划与实施,可以针对国内美术馆幼儿教育现状提出从普遍性到针对性的幼儿群体课程开发、美术馆幼儿课程评价体系建立等一系列馆园合作方式与建议,以改变目前美术馆零散性亲子活动为主的现状,并能构建与幼儿园更好衔接的馆园合作课程。     

试论《明人十二像册》高度写真风格的中国渊源

现藏于南京博物院的一批无款写真头像《明人十二像册》,是中国写实画的一座高峰。对于这个像册的绘画风格,现当代学者多半都偏向认为是受到西方绘画的影响。但经与西方圣像画比较研究,像册仍属于中国本土的绘画传统,受到了宋代山水画和花鸟画高度写真精神的影响。     

基于MIP-SLA的叶片陶瓷型芯光固化成型技术

为解决航空发动机空心涡轮叶片陶瓷型芯的3D打印难题,研究基于图像投影的复杂结构陶瓷型芯光固化成型（mask-image projection stereolithography,MIP-SLA）方法。搭建MIP-SLA工艺系统平台,对陶瓷浆料的制备和打印工艺参数的配置进行研究。分析利用球磨机将光敏树脂和陶瓷颗粒进行混合制备陶瓷浆料时,光敏树脂类型、固相含量、陶瓷颗粒粒径、分散剂含量和球磨时间对陶瓷浆料性能的影响。对不同配置参数下的打印效果进行对比分析,对确定的最佳打印工艺参数进行打印效果验证。     

我国男生引体向上“零”分探因:基于三角互证的研究策略

我国多数男生引体向上得"零"分,使上肢力量测评出现"地板效应"。采用量化研究和质性研究两种范式提高研究效度。量化研究对学生体质与健康调研数据和监测数据进行方差分析、多重比较和回归分析,结果表明：（1）每5~10年,男生的握力、体重、身高、BMI、引体向上均值差异显著;（2）年龄、握力、体重、身高、BMI分别显著预测引体向上成绩,体重和握力是影响我国男生引体向上成绩的主要影响因素。质性研究结果表明,引体向上"零"分主要有四个方面的原因：体重增长难挡,力量增长受限,个体认知偏差,社会支持薄弱。结论：我国男生引体向上"零"分的首要原因是体重增长较快,其次,主要肌群绝对力量和耐力增长不足,男生对引体向上的认知有偏差,学校、家长、社会支持较弱;借助政策控制体重、发展肌力、完善测评标准、促进男生积极练习引体向上十分重要。     

Between-limb differences in running technique induces asymmetric negative joint work during running

Negative work, which is mainly generated by eccentric muscle contraction, has an important influence on the associated muscle damage. Generally, mechanical parameters are determined for one side of a lower extremity on the assumption of negligible between-limb differences. However, between-limb differences in the negative work of lower extremity joints during running remain unclear. This study examines between-limb differences in negative work and associated mechanical parameters during the contact phase of running. Twenty-five young adult males voluntarily participated in this study. Each participant was asked to run on a straight runway at a speed of 3.0?m?s^?1. Negative work, amplitude, duration of negative power, moment, and angular velocity were computed for both sides of the lower extremities. Significant differences were found in negative work between limbs for the hip (18.9?±?11.7%), knee (13.6?±?10.4%), and ankle (11.8?±?8.5%) joints. For the hip joint, asymmetric negative work was attributable to the between-limb difference in the amplitude of negative power owing to a corresponding difference in the moment. The between-limb differences concerning the duration and amplitude of negative power could explain the asymmetric negative work in the knee joint. The asymmetric negative work of the ankle joint was attributable to the between-limb difference in the amplitude and duration of the negative power and the moment. These results indicate that asymmetric negative work was generated in each lower extremity joint; however, the major mechanical parameters corresponding to the negative work are not the same across the joints.     

一种机载重轨InSAR高精度三维定位方法

在重轨干涉实际测量中,两次飞行航迹难以保持高度重合,飞行高度和姿态不稳定,干涉图像对存在明显不规则的相对形变,难以进行三维定位。通过分析重轨机载InSAR图像对的几何形变和形成原因,提出一种从精准的InSAR成像几何关系出发,通过修正成像参数,实现机载重轨InSAR高精度三维定位的方法。该方法通过引入地面控制点,实现干涉图像对精准的相对定位,生成高精度DEM;并利用高精度DEM,实现机载重轨InSAR高精度三维定位。对比检查点实测结果和定位结果,表明该方法可有效地解决机载重轨InSAR的三维定位困难的问题。     

云科-18选3的孕穗期耐冷性评价及遗传研究

在湛江2004和2005年度,于自然条件下对237个水稻材料进行大田分期播种试验和人工气候箱定温试验。并对所有这些材料进行孕穗期耐冷性评价,其中来源于云南农科院并经单株选择的云科-18选3能耐受12℃的低温,是所有供试材料中最为耐冷的。用云科-18选3作母本与不耐冷材料R6067作父本杂交,以低温条件下的自交结实率作为孕穗期的耐冷性评价指标,采用王建康等分析软件,研究表明云科-18选3孕穗期耐冷性受一对主效基因控制。     

Injectable hybrid inorganic nanoscaffold as rapid stem cell assembly template for cartilage repair

Cartilage injuries are often devastating and most cannot be cured because of the intrinsically low regenerative capacity of cartilage tissues. Although stem-cell therapy has shown enormous potential for cartilage repair, the therapeutic outcome has been restricted by low survival rates and poor chondrocyte differentiation in vivo. Here, we report an injectable hybrid inorganic (IHI) nanoscaffold that facilitates fast assembly, enhances survival and regulates chondrogenic differentiation of stem cells. IHI nanoscaffolds that strongly bind to extracellular matrix (ECM) proteins assemble stem cells through synergistic 3D cell–cell and cell–matrix interactions, creating a favorable physical microenvironment for stem-cell survival and differentiation in vitro and in vivo. Additionally, chondrogenic factors can be loaded into nanoscaffolds with a high capacity, which allows deep, homogenous drug delivery into assembled 3D stem-cell-derived tissues for effective control over the soluble microenvironment of stem cells. The developed IHI nanoscaffolds that assemble with stem cells are injectable. They also scavenge reactive oxygen species and timely biodegrade for proper integration into injured cartilage tissues. Implantation of stem-cell-assembled IHI nanoscaffolds into injured cartilage results in accelerated tissue regeneration and functional recovery. By establishing our IHI nanoscaffold-templated 3D stem-cell assembly method, we provide a promising approach to better overcoming the inhibitory microenvironment associated with cartilage injuries and to advance current stem-cell-based tissue engineering.