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991.
There has been a growing trend recently to examine the various factors affecting an age-friendly workplace. Through structural equation modelling (SEM), this study purports to test a model that shows the interaction between and among declining memories, wisdom, age discrimination, and an age-friendly workplace in Filipino elderly in a government setting. Two hundred elderly from a large government bank in the Philippines participated in this study. Data were obtained through a self-completion questionnaire and a one-on-one interview. Surprisingly, results revealed that declining memory has no significant effect on wisdom. However, wisdom has a positive impact on age discrimination as does age-discrimination on an age-friendly workplace. The authors discuss the implications of these results and highlight directions for future research.  相似文献   
992.
The purpose of this study was to elucidate the relationship between the collegiate religious, spiritual, and ideological climate and worldview commitment. As part of this process, 1,071 students responded to the Collegiate Religious and Spiritual Climate Survey, an empirically validated and reliable measure designed to assess dimensions of a campus’ religious, spiritual, and ideological climate. Results indicated that aspects of the psychological and behavioral climate were related to worldview commitment and these relationships were often conditioned upon students’ self-identified religious worldview. Implications for scholars and practitioners are discussed.  相似文献   
993.
Four early childhood education teachers, two veteran and two newer teachers, were asked to pilot the use of handheld Personal Data Assistants loaded with Childchart assessment software. The participants were observed in their use of the electronic devices for monitoring student performance and interviewed regarding the use of the devices and their implications for assessment of early childhood learners. Veteran teachers indicated differences in both the use of the software programs and the style in which assessment activities were completed compared to newer teachers. The results indicate the need for professional development of new technologies to focus beyond the utilization of software and hardware and that new technologies implementation may be the catalyst for improvements in assessment strategies.  相似文献   
994.
The exponential growth and sophistication of new information and computer technology (ICT) have greatly influenced human interactions and provided new metaphors for understanding the world. The acceptance and integration of ICT into social work field education are examined here using the technological acceptance model. This article also explores potential challenges regarding the adoption of ICT into social work field practica. The article concludes with implications for adopting and integrating ICTs in social work field education.  相似文献   
995.
几种蒸散模型在玉米农田蒸散量计算中的应用比较   总被引:3,自引:1,他引:2  
模拟蒸散的物理过程,计算农田蒸散量是进行生态系统水资源评价和管理的重要手段,同时也是气象部门进行土壤湿度预报的首要条件.本研究以玉米农田为研究对象,基于涡度相关法观测的蒸散实测资料,比较分析了基于常规气象数据的蒸散模型(Hargreaves法、Priestlev-Taylor法、FAO-Penman-Monteith法)和基于气象梯度数据的蒸散模型(波文比法、梯度法、生态系统过程模型模拟)的模拟精度.结果表明:①Hargreaves法、Priestley-Taylor法和FAO-Penman-Monteith法日蒸散的模拟结果较为一致,总体上高估20%~26%,其中Priestley-Taylor法模拟结果最优;②生态系统过程模型模拟的农田日蒸散精度较高,但模型中涉及的物理过程和参数较多,在实际应用中难于获取;③波文比法在波文比小于0.4且仪器精度较高时可以得到较准确的估算值.研究同时还指出,仪器的安装高度及高差设计对梯度法估算蒸散十分重要.  相似文献   
996.
We report complete sequences of 2 genes of S.flexneri 1a an Indian isolate for the first time. Shigella is causative agent of shigellosis or bacillary dysentery. Genomic library was constructed by shotgun approach. Sequencing was carried out using Big Dye terminator chemistry using ABI 3730 48 capillary DNA analyzer. 170 recombinants were subjected to nucleotide sequencing. Sequence data was analyzed, of these 2 clones showed presence of complete genes out of the total clones sequenced. Annotations were done using various bioinformatics tools. Gene Sfo676 on contig SF21B11, 513 bp long codes for a protein 170 aa long with molecular weight of 18836.5 daltons. The protein is 99 % identical to S. flexneri 2a 301 and not with any other strain of Shigella. It has 7 different sites for phosphorylation, myristoylation and glycosylation. Predicted cellular localization is cytoplasmic membrane. SF0368 is another full-length gene SF0368 on contig SF69C1 is a 312 nucleotide long. It is 103 aa long with molecular weight 11394.0 daltons. Protein is 100% identical to S. flexneri 2a 301 and 99% with S. sonnei strain 046. The gene shows difference when compared with S.sonnei in mono and dinucleotide frequency as well as amino acid composition.  相似文献   
997.
浙江省高校学报现状、问题及发展对策   总被引:2,自引:0,他引:2  
高校学报是我国期刊的重要组成部分,其中的自然科学类学报是我国科技创新和建设创新型国家的主要媒体之一.本文对浙江省50家高校学报的办刊情况等方面进行了调查,分析得出高校学报由于受传统办刊观念的影响,随着我国高等教育改革的不断深化,同样面临着巨大的挑战和机遇.针对目前高校学报普遍存在着办刊思想保守、脱离市场、缺少经营意识等问题,并由此提出了进一步提高浙江省高校学报办刊质量的对策和建议.  相似文献   
998.
Micromixer based on viscoelastic flow instability at low Reynolds number   总被引:1,自引:0,他引:1  
We exploited the viscoelasticity of biocompatible dilute polymeric solutions, namely, dilute poly(ethylene oxide) solutions, to significantly enhance mixing in microfluidic devices at a very small Reynolds number, i.e., Re≈0.023, but large Peclet and elasticity numbers. With an abrupt contraction microgeometry (8:1 contraction ratio), two different dilute poly(ethylene oxide) solutions were successfully mixed with a short flow length at a relatively fast mixing time of <10 μs. Microparticle image velocimetry was employed in our investigations to characterize the flow fields. The increase in velocity fluctuation with an increase in flow rate and Deborah number indicates the increase in viscoelastic flow instability. Mixing efficiency was characterized by fluorescent concentration measurements. Our results showed that enhanced mixing can be achieved through viscoelastic flow instability under situations where molecular-diffusion and inertia effects are negligible. This approach bypasses the laminar flow limitation, usually associated with a low Reynolds number, which is not conducive to mixing.  相似文献   
999.
1000.
Hemodialysis represents a chronic stress status for its recipients. Many hypotheses state that this may be associated with oxidative stress. Thus, there may be deficiency of antioxidants like erythrocytic superoxide dismutase, catalase, vitamin E or increased generation of free radicals like superoxide anions. A study was carried out to investigate oxidant and antioxidant status in chronic renal failure patients undergoing hemodialysis and effect of vitamin E supplementation on these two status. Blood samples were collected from patients before and after hemodialysis and from controls. The samples were analyzed for quantitation of MDA as index of lipid peroxide, nitric oxide, vitamin E, vitamin C and enzymatic antioxidants namely erythrocyte SOD and catalase. As compared to controls, the levels of serum MDA were significantly increased and activities of erythrocyte SOD and catalase, levels of serum nitric oxide, serum vitamin E and plasma vitamin C were significantly decreased both before and after hemodialysis. The efficiency of vitamin E therapy in hemodialysis patients was assessed by re-evaluating oxidant and antioxidant status of same patients after supplementation of vitamin E. Vitamin E supplementation caused decrease in serum MDA and increase in levels of serum nitric oxide, vitamin E, vitamin C and activities of erythrocytic SOD and catalase. Our results suggest the presence of oxidative stress and the possible preventive role of vitamin E therapy in hemodialysis patients.  相似文献   
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