A dynamic decision model for portfolio investment and assets management     

QIAN Edward Y.  FENG Ying  HIGGISION James 《浙江大学学报(A卷英文版)》2005,6(Z1)

This paper addresses a dynamic portfolio investment problem. It discusses how we can dynamically choose candidate assets, achieve the possible maximum revenue and reduce the risk to the minimum level. The paper generalizes Markowitz's portfolio selection theory and Sharpe's rule for investment decision. An analytical solution is presented to show how an institutional or individual investor can combine Markowitz's portfolio selection theory, generalized Sharpe's rule and Value-at-Risk(VaR) to find candidate assets and optimal level of position sizes for investment (dis-investment). The result shows that the generalized Markowitz's portfolio selection theory and generalized Sharpe's rule improve decision making for investment.  相似文献   

Social Work Intervention with White Collared Employees and Their Families     

Y.?S.?SiddeGowdaEmail author 《International journal for the advancement of counseling》2004,26(4):421-432

This investigation presents a framework for understanding and also to test the efficacy of Social Work intervention on the well being of the white collared employee (industrial employee) and his/her family. A comprehensive and intensive personal- family exploration was done to uncover the relatedness of seemingly disparate areas of the clients lives. A total of 80 executives (industrial employees) served as subjects. A baseline assessment was done using structured, standardized interview-schedules/questionnaires. The results of the study can be enumerated as follows: After the Social Work intervention, the executives in occupational profile, there were significant changes in Role perception, overload, role conflict, low status and poor peer relations. In coping strategies there was significant improvement in sub-scales like problem solving and unproductive coping. Significant reduction was noticed in their proneness to heart disease, depression, inadequate mental mastery, and perceived ill health. There was significant improvement in their family group support, and in their expressiveness, achievement, orientation, active-recreational and organizational characteristics.  相似文献   

Wandel in der Fremdsprachenpolitik der DDR     

Günter Böhme 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》1991,37(1):168-172

Ohne Zusammenfassung  相似文献   

Educational technology services in higher education     

Saeid Y. Eidgahy 《TechTrends》1992,37(2):37-40

  相似文献   

A symplectic eigensolution method in transversely isotropic piezoelectric cylindrical media     

徐新生 顾佥梁以德  郑建军 《浙江大学学报(A卷英文版)》2005,6(9):922-927

INTRODUCTION Since the phenomenon of piezoelectricity in natural crystals was discovered in 1880, it has been applied in many fields, such as smart structure, sensing devices and active control, because of its special properties. Combining electrical behavior with mechanical deformation is the special property which attracted great interest of researchers. Many models have been developed for studying piezoelec- tric effects. Dunn and Wienecke (1996) used Green’s functions for transverse…  相似文献   

Understanding the Gaps Between Turkish Teachers’ Beliefs and Practices for Dealing With Preschoolers’ Peer Relationship Problems     

Çağla Öneren Şendil  Feyza Tantekin Erden 《Early education and development》2019,30(5):608-638

Research Findings: This study explores the beliefs, self-reported practices, and observed practices of Turkish preschool teachers toward children’s peer relationship problems as well as the gap between their beliefs and practices. Five female teachers of 5-year-old children were selected as participants for this multiple case study. Approximately 79 hr of observation was conducted on the children’s daily routines and activities in a natural classroom environment, which specifically included the teachers’ problem-solving strategies while confronting peer relationship problems. The participants were also interviewed regarding their beliefs and strategies for solving peer relationship problems. The findings of this qualitative investigation indicated that the teachers’ beliefs and self-reported practices included both teacher- and child-related factors. However, the observed practices included several teacher-initiated strategies; child-initiated strategies appeared, albeit less than teacher-initiated ones. This affirms the teachers’ stress on children’s role in managing peer problems. Although some of the teacher practices and beliefs were consistent, certain inconsistencies may indicate the presence of external constraints. Practice or Policy: The results of this study highlight the importance of teacher education programs providing preservice and in-service teachers with the knowledge and skills required to understand children’s peer relationships, guide their interactions, and apply appropriate intervention strategies for various peer relationship problems.  相似文献   

Admission test for medical studies in West Germany     

Günter Trost 《Studies in Educational Evaluation》1984,10(1):87

  相似文献   

Search for Symbol Sense Behavior: Students in Upper Secondary Education Solving Algebraic Physics Problems     

Turşucu  Süleyman  Spandaw  Jeroen  de Vries  Marc J. 《Research in Science Education》2020,50(5):2131-2157

Research in Science Education - Students in upper secondary education encounter difficulties in applying mathematics in physics. To improve our understanding of these difficulties, we examined...  相似文献   

Children’s Perspectives on Their Everyday Lives in Child Care in Two Cultures: Denmark and the United States     

Grethe Kragh-Müller  Rebecca Isbell 《Early Childhood Education Journal》2011,39(1):17-27

The purpose of this study was to investigate young children’s perspectives related to their experiences in child care. Researchers used individual interviews and drawings in an early childhood program in Denmark and one in the United States as the basis for examining children’s perspectives on their everyday lives in child care. Observations documented the everyday cultural practices for the children in the two child care centers and provided a foundation for interpreting the interviews and the drawings. The information collected was analyzed to determine what aspects of child care young children like best and least, as well as their thoughts on the adults and peers in their center.  相似文献   

The Czech Republic Between Studentocracy,Academic Oligarchy and Managerialism: Are students powerful or powerless?     

Pabian  Petr  Hündlová  Lucie  Provázková  Karla 《Tertiary Education and Management》2011,17(3):191-203

Tertiary Education and Management - In this article, we will argue that students played an important role at several crucial junctures of modern Czech history, which secured them a central position...  相似文献