信息构建在政府信息公开中的应用——以政府网站信息公开栏目建设为例

政府信息公开是现代政府的必然选择,政府网站是政府信息公开的主渠道。作为使信息得到清晰表达、易于理解的手段和方法,信息构建在网站建设中发挥着重要作用。本文采用多案例研究方法,选取上海市、北京市以及浙江省政府网站信息公开栏目作为研究对象,运用信息构建的思想对其进行了定性分析,比较其优点与不足,以期为我国政府网站信息公开栏目的建设提供指导和借鉴。     

网络时代的未来--网格技术

网格技术实现了网络资源的全面连通,具有成本低、效率高、使用方便等优点,是21世纪工业技术的又一次革命,它的时代正在来临!     

土壤和建筑材料表面氡析出率对室内氡浓度的影响

采用监测数据可靠的RAD7测氡仪,选择深圳市某平房为研究对象,检测到平房周围为土壤氡低背景区,且土壤表面氡析出率较大,约为房间内水泥地板的2倍,说明土壤是室内氡的最大来源;而水泥地板表面氡析出率较瓷砖地板大,约为瓷砖地板的4倍。铺有水泥地板的房间室内氡浓度大于铺有瓷砖地板的房间,这是由于水泥地板表面氡析出率较大。因此,为了减少室内氡浓度,应该尽可能选择表面氡析出率低的材料铺设地板,并保持开窗通风。     

取消左转可缓解交通拥堵的计算机仿真

围绕三排道十字信号交叉口取消左转弯的管理措施,建立了计算机仿真模型。结合概率论与数理统计方法对车辆生成模型进行泊松分布假设检验,选取通行能力作为判定指标,实现了禁左前后通行能力的对比．     

在线行走式板型仪的实际应用

本文介绍了河北钢铁集团唐钢热轧1700mm生产线的在线行走式板型仪的测试原理、设备构成、主要技术性能、应用范围.整套系统结构简单,成本低廉,抗干扰性好,调试方便.     

基于结构方程的中小型科技企业成长机制研究

中小型科技企业成长中的高风险性所引致的短寿命、高失败率是学术界和企业界所共同面临的难题。从中小型科技企业成长路径出发,运用AMOS构建中小型科技企业成长机制的统合模型,并对模型要素之间的路径关系进行了检验。研究结果显示,对中小型科技企业成长最具显著性作用的是企业自身的竞争能力,其次是任务环境、成长资源和宏观环境。针对这些研究结果,提出了相应的对策建议。     

区域知识产权竞争力指标体系构建的探究

在理论上将知识产权战略实施与区域经济社会发展诸项战略相结合,明确了"夯实竞争基础、增强竞争潜力、强化竞争实力"目标定位,而且在应用上更具操作性和测度性,可凸显区域振兴知识产权事业的显示度,以利于区域科技优势向知识产权优势,再向区域经济可持续发展优势的转变。     

Release monitoring of single cells on a microfluidic device coupled with fluorescence microscopy and electrochemistry

A method for monitoring the biological exocytotic phenomena on a microfluidic system was proposed. A microfluidic device coupled with functionalities of fluorescence imaging and amperometric detection has been developed to enable the real-time monitoring of the exocytotic events. Exocytotic release of single SH-SY5Y neuroblastoma cells was studied. By staining the cells located on integrated microelectrodes with naphthalene-2,3-dicarboxaldehyde, punctuate fluorescence consistent with localization of neurotransmitters stored in vesicles was obtained. The stimulated exocytotic release was successfully observed at the surface of SH-SY5Y cells without refitting the commercial inverted fluorescence microscope. Spatially and temporally resolved exocytotic events from single cells on a microfluidic device were visualized in real time using fluorescence microscopy and were amperometrically recorded by the electrochemical system simultaneously. This coupled technique is simple and is hoped to provide new insights into the mechanisms responsible for the kinetics of exocytosis.     

Herceptin functionalized microfluidic polydimethylsiloxane devices for the capture of human epidermal growth factor receptor 2 positive circulating breast cancer cells

Building on recent breakthroughs in the field of microfluidic-based capture of rare cancer cells circulating in the blood, the present article reports on the use of Herceptin functionalized PDMS devices designed to efficiently capture from blood cancer cells, overexpressing the tyrosine kinase human epidermal growth factor receptor (HER2). The identification of patients overexpressing HER2 is critical as it typically associates with an aggressive disease course in breast cancer and poor prognosis. Importantly, HER2 positive patients have been found to significantly benefit from Herceptin (Trastuzumab), a humanized monoclonal antibody (MAb) against HER2. Disposable PDMS devices prepared using standard soft lithography were functionalized by the plasma polymerization of an epoxy-containing monomer. The epoxy-rich thin film (AGEpp) thus created could be conjugated with Herceptin either directly or through a polyethylene glycol interlayer. The properties and reactivity toward the monoclonal antibody conjugation of these coatings were determined using x-ray photoelectron spectroscopy; direct conjugation provided a good compromise in reactivity and resistance to biologically nonspecific fouling and was selected. Using the breast cancer cell line SK-BR-3 as a model for cells overexpressing HER2, the immunocapture efficacy of the Herceptin functionalized PDMS was demonstrated in model studies. Validation studies confirmed the ability of the device to efficiently capture (～80% capture yield) HER2 positive cells from full blood.     

传统武德的当代教育价值对塑造大学生健康人格的积极作用

传统武德作为传统的道德规范具有良好的教育功能,其基本内容＂尊师重道,精忠报国;讲礼守信,重义轻利;立身正直,谦和仁爱;自强不息,厚德载物＂可以从多方面影响并塑造大学生的健康人格。