利用图书馆资源促进开放教育教学工作

为弥补传统教学的不足,文章提出了充分利用图书馆资源促进开放教育教学工作;介绍了成人高校图书馆的基本特点,阐述了充分利用图书馆资源促进开放教育教学工作的现实意义,并介绍了如何利用图书馆资源．最后列举了具体的教学实例。     

工科院校无机化学课程教学方法初步探索

基于工科院校无机化学的教学现状,提出在课堂教学中转变教学理念,加强四大化学之间的联系,精选教学内容,优化教学方法,在教学过程中取得良好的教学效果,使学生对无机化学学科的掌握能力大大加强。     

FDI对河南省经济发展的影响研究

从河南省FDI现状及与区域GDP的比较入手,利用大量的数据资料,从产业结构、进出口贸易和劳动力就业等方面进行说明,并通过对各地市的FDI进行比较得出,FDI对河南省经济发展的影响是显著的,但它在各地的分布极不均衡。     

对分课堂模式在药用植物学与生药学教学中的应用

药用植物学与生药学是高校药学专业的核心课程。对分课堂是一种崭新的教学模式,有效融合了传统讲授式教学与讨论式教学的优点,能够提高学生学习的积极性和主动性。本文将对分课堂教学模式应用到药用植物学与生药学的教学实践中,发现该模式有效地提高了学生的课堂参与度,激发了学生的学习积极性,促进了独立思考能力和团队协作能力。     

CSSD护士的职业危害与防护对策相关性研究

医院消毒供应中心(CSSD)是集中全院污染的医疗用品及敷料的部门。长期与致病源、锐器、噪音、化学消毒液、高温、电器辐射、潮湿等因素接触,对CSSD员工的健康和安全产生了威胁。本文分析了CSSD的职业危害因素,并提出职业防护对策,以期提高自我防护水平,减少危害,避免发生医疗不良事件,促进CSSD护理人员的职业健康。     

新课改环境中的小学语文阅读教学优化技巧

为了培养出能够引领社会发展的前沿性人才,我国在教育领域实施了深入的改革,希望通过教育改革为科技腾飞奠定扎实的人才基础。小学阶段养成的习惯会伴随着人的一生,小学阶段形成良好的人文素养,能为小学生品格的塑造和未来的发展奠定良好的基础。因此,对小学语文进行教育改革是时代的选择。阅读是小学语文教育的重中之重,为了确保达到教学目标,语文教师必须突破原有的教育瓶颈。     

Diagnosis of CO2 dynamics and fluxes in global coastal oceans

Global coastal oceans as a whole represent an important carbon sink but, due to high spatial–temporal variability, a mechanistic conceptualization of the coastal carbon cycle is still under development, hindering the modelling and inclusion of coastal carbon in Earth System Models. Although temperature is considered an important control of sea surface pCO₂, we show that the latitudinal distribution of global coastal surface pCO₂ does not match that of temperature, and its inter-seasonal changes are substantially regulated by non-thermal factors such as water mass mixing and net primary production. These processes operate in both ocean-dominated and river-dominated margins, with carbon and nutrients sourced from the open ocean and land, respectively. These can be conceptualized by a semi-analytical framework that assesses the consumption of dissolved inorganic carbon relative to nutrients, to determine how a coastal system is a CO₂ source or sink. The framework also finds utility in accounting for additional nutrients in organic forms and testing hypotheses such as using Redfield stoichiometry, and is therefore an essential step toward comprehensively understanding and modelling the role of the coastal ocean in the global carbon cycle.     

Rapid phenotypic evolution with shallow genomic differentiation during early stages of high elevation adaptation in Eurasian Tree Sparrows

Known as the ‘third polar region’, the Qinghai-Tibet Plateau represents one of the harshest highland environments in the world and yet a number of organisms thrive there. Previous studies of birds, animals and humans have focused on well-differentiated populations in later stages of phenotypic divergence. The adaptive processes during the initial phase of highland adaptation remain poorly understood. We studied a human commensal, the Eurasian Tree Sparrow, which has followed human agriculture to the Qinghai-Tibet Plateau. Despite strong phenotypic differentiation at multiple levels, in particular in muscle-related phenotypes, highland and lowland populations show shallow genomic divergence and the colonization event occurred within the past few thousand years. In a one-month acclimation experiment investigating phenotypic plasticity, we exposed adult lowland tree sparrows to a hypoxic environment and did not observe muscle changes. Through population genetic analyses, we identified a signature of polygenic adaptation, whereby shifts in allele frequencies are spread across multiple loci, many of which are associated with muscle-related processes. Our results reveal a case of positive selection in which polygenic adaptation appears to drive rapid phenotypic evolution, shedding light on early stages of adaptive evolution to a novel environment.     

A stage-specific cell-manipulation platform for inducing endothelialization on demand

Endothelialization is of great significance for vascular remodeling, as well as for the success of implanted vascular grafts/stents in cardiovascular disease treatment. However, desirable endothelialization on synthetic biomaterials remains greatly challenging owing to extreme difficulty in offering dynamic guidance on endothelial cell (EC) functions resembling the native extracellular matrix-mediated effects. Here, we demonstrate a bilayer platform with near-infrared-triggered transformable topographies, which can alter the geometries and functions of human ECs by tunable topographical cues in a remote-controlled manner, yet cause no damage to the cell viability. The migration and the adhesion/spreading of human ECs are respectively promoted by the temporary anisotropic and permanent isotropic topographies of the platform in turn, which appropriately meet the requirements of stage-specific EC manipulation for endothelialization. In addition to the potential of promoting the development of a new generation of vascular grafts/stents enabling rapid endothelialization, this stage-specific cell-manipulation platform also holds promise in various biomedical fields, since the needs for stepwise control over different cell functions are common in wound healing and various tissue-regeneration processes.     

在C++中实现运行时的多态性过程的研究

介绍了实现运行时的多态性几个重要因素——虚函数、基类和派生类。通过实例阐述了虚函数如何实现运行时的多态性的,用运行结果数据详细分析了运行时的多态性的过程。最后说明了动态绑定实现的原理。