乌兰察布地区胡萝卜优化施肥方案初步研究   总被引：1，自引：0，他引：1  

穆俊祥  曹兴明  刘拴成  韩海霞  姚林柏 《集宁师专学报》2011,33(4):22-25

本试验通过正交旋转回归设计在乌兰察布地区选取氮、磷、钾和有机肥为参试变量,以胡萝卜产量为目标函数,建立了胡萝卜产量与参试因子间的数学模型,得出了各变量与产量的主次关系及各因素对产量的效应。最后,通过模拟寻优获得了本试验地条件下胡萝卜产量高于6000kg/667m2的施肥方案：N（8.06-8.72kg/667m2）、P2O5（3.89-4.26kg/667m2）、K2O（19.10-20.45kg/667m2）、有机肥（6346-6907kg/667m2）。  相似文献   

Principal Recruitment: An Empirical Evaluation of a School District’s Internal Pool of Principal Certified Personnel   总被引：1，自引：0，他引：1  

Paul A. Winter  James S. Rinehart  Marco A. Muñoz 《Journal of Personnel Evaluation in Education》2002,16(2):129-141

Applicant pools for principal vacancies are shrinking nationwide. This shortage of job applicants requires school districts to evaluate their internal pools of principal certified personnel. In this study, 194 certified individuals from a large school district responded to a survey measuring attraction to the job of principal, current job satisfaction versus expected satisfaction in the job of principal, barriers to pursuing the job, and recommended changes in the job. Few participants intended to apply for principal vacancies due to age (median=51), lack of self-reported capability to do the job, and satisfaction with the current job. Participants perceived their job satisfaction would decrease on assuming the job of principal relative to factors such as time with family and job security, and increase relative to factors such as salary and opportunity to experience varied activities. Implications for principal recruitment and recommendations for restructuring the job are discussed.  相似文献   

顾颉刚的学术追求     

章牧 《淮阴师范学院学报(哲学社会科学版)》2002,24(5):624-629

顾颉刚先生追求的“为学术而学术”道路,不仅体现在他学术研究中有一种勇于开拓创新的精神,一种锲而不舍的韧性,而且体现在他组织禹贡学会,辛勤地培养青年学子的活动中;而这种追求之所以受到阻碍,使顾颉刚深入彷徨,苦闷,就在于受到“经世致用”思想和“左”倾的阶级斗争理论以及传统意识形态等对学术研究的消极影响。  相似文献   

Interface project II and Ontario's review of educational policy   总被引：1，自引：0，他引：1  

Ross E. Traub  Carla Wolfe  Richard G. Wolfe  Howard Russell 《Interchange》1976,7(4):24-31

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Validation of a self-perceived media competence instrument for pre-service teachers / Validación de un instrumento de autopercepción de competencia mediática para docentes en formación     

Julio-César Mateus  Wilson Hernández-Breña  Mònica Figueras-Maz 《Cultura y Educación》2019,31(2):436-464

Abstract

Key to guaranteeing the fundamental human rights of freedom of expression and information is the development of media competence, particularly in schools. Training teachers in the area of media competence is particularly important for developing these skills in the broader citizenry. In order to provide educators and educational policymakers with a useful diagnostic tool, we have designed a self-perception questionnaire. The questionnaire was applied to a sample of Peruvian education students (N = 501). On the one hand, the results confirm the construct’s coherence, validity and instrumental reliability. On the other hand, they allow us to propose a theoretically based update to the way in which this construct is interpreted and applied, confirming the multidimensionality of media competence. Finally, we use this empirical evidence to discuss the integral, transversal and ecological status of media competence.  相似文献   

Association between attitudes of filial responsibility and parent caregiving behavior     

Marines Aires  Duane Mocellin  Fernanda Laís Fengler Dal Pizzol  Carla Cristiane Becker Kottwitz Bierhals  Neena L. Chappell  Eliane Pinheiro de Morais 《Educational gerontology》2019,45(3):191-200

Objective: To analyze the association between attitudes of filial responsibility and adult child caregivers’ behaviors in the Southern Region of Brazil.

Methods: Cross-sectional study with 100 child caregivers of older adults. The data were collected through an interview using the protocol of filial responsibility adapted and validated to Brazilian Portuguese. Filial Expectation and Filial Piety scales evaluated the attitudes of filial responsibility. Caring behaviors assessed were: instrumental support, emotional, financial support, and companionship. The variables that presented p< .20 value in the bivariate analysis were inserted into a multivariate Poisson regression model.

Results: Financial and emotional support behaviors were significantly associated with filial piety (p = .050 and p = .001, respectively) and filial expectation (p = .013 and p = .023, respectively). Providing companionship was associated with filial piety (p = .015).

Conclusion: Attitudes of filial responsibility are associated with some but not all caregiving behaviors. Brazilians caring for older parents show more similarities to Chinese than to Canadian caregivers. Furthermore, filial responsibility and caregiving behaviors are strongly affected by Brazilian social and cultural norms. Reasons are discussed.  相似文献   

高等院校档案网络化管理的研究与应用     

刘伟力  李目 《湖南科技学院学报》2006,27(10):280-282

随着我国高等教育的迅速发展，高校规模的不断扩大，高校档案管理的网络化、信息化、智能化成为发展的趋势，如何进行高校档案管理成为各高校迫切需要解决的问题。本文从高校档案管理的现状着手，分析了网络化管理的必要性，对网络化管理模式的可行性进行了论证，并对高校档案网络化管理中可能出现的问题提出应对措施，为高校档案网络化管理模式的实施提供了借鉴。  相似文献   

Whole-School Collaborative Sustained Professional Development and Science Teacher Change: Signs of Progress     

Carla C. Johnson 《Journal of Science Teacher Education》2007,18(4):629-661

The experiences of middle school science teachers at two schools in the southeastern US who participated in collaborative, sustained, whole-school professional development and their implementation of standards-based instructional practices are the focus of this study. Participants were involved in their second year of the professional development experience. The research question that was explored was “How are science teachers implementing standards-based instruction while participating in effective professional development experiences?” Data collected in the form of teacher interviews and classroom observations using an observation protocol. Findings indicate that even with effective professional development, teachers implement standards-based instructional practices at varying levels. The reasons for these differences are discussed and the role of teacher beliefs and the impact of beliefs, experience and support from administrators on professional development efforts are discussed. Implications for future science education reform stakeholders and professional development efforts are revealed.  相似文献   

战略联盟:我国高校可持续发展的有效途径     

金凤  朱洪镇  腾英元  穆学宽 《辽宁教育行政学院学报》2007,24(3):31-33

近年来,高等教育内外部环境发生着深刻的变化,高校面临一系列新挑战。高等教育要以可持续发展为目标,高校战略联盟是高校持续发展的有效途径,通过高校战略联盟实现资源共享、风险共担、相互促进、共同发展的合作机制,进而有效提高我国高校的核心竞争能力。  相似文献   

双平衡模拟乘法器在广播电视接收机中的应用     

陈木鑫 《韩山师范学院学报》1995,(3)

本文分析了双平衡模拟乘法器的原理,并讨论其在广播电视接收机中的一些应用.  相似文献