Axial solutions for multiple objective linear problems. An application to target setting in DEA models with preferences

In this paper we introduce the class of axial solutions for multiple objective optimization problems in contexts in which partial information on preference weights is available. These solutions combine the use of an improvement axis to direct the search of the most preferred result with the concept of efficiency with respect to preference information.     

Approximate Likelihoods for Generalized Linear Errors-in-variables Models

When measurement error is present in covariates, it is well known that naïvely fitting a generalized linear model results in inconsistent inferences. Several methods have been proposed to adjust for measurement error without making undue distributional assumptions about the unobserved true covariates. Stefanski and Carroll focused on an unbiased estimating function rather than a likelihood approach. Their estimating function, known as the conditional score, exists for logistic regression models but has two problems: a poorly behaved Wald test and multiple solutions. They suggested a heuristic procedure to identify the best solution that works well in practice but has little theoretical support compared with maximum likelihood estimation. To help to resolve these problems, we propose a conditional quasi-likelihood to accompany the conditional score that provides an alternative to Wald's test and successfully identifies the consistent solution in large samples.     

流体力学多媒体教学的探讨

针对流体力学课程理论性强,课程实验多,实验受条件限制大的特点,并结合多年的教学实践经验,制作了多媒体课件,在理论和实践的教学效果上作了有益的探索和研究。     

THE CHOICE BETWEEN SETS OF REGRESSORS

This paper examines the choice of critical values for testing both non-sequential and nested sequential sets of constraints in the standard linear regression model. Modest increases in (e.g.) t-ratio critical values relative to their one-off values are often sufficient to maintain proper size. A Bayesian decision-theoretic approach, highlighted by the Schwarz (1978) criterion, provides a framework for deriving consistency and asymptotic local power properties of both forms of testing (data mining) algorithms.     

‘My dad hangs out of helicopter doors and takes pictures of oil platforms': Children's accounts of parental work in the oil and gas industry

Against the backdrop of the acceleration in pace of work and family life over the last decade, and the accompanying intensification of the work-family debate, this paper argues for the need to include children as stakeholders in the work-family debate. The ethnographic study on which this paper is based brings together children, family, work and community to explore interrelationships between workplace change, parental employment and family life in the oil and gas industry in Scotland. This paper focuses specifically on children's accounts of parental work and the work-family interface. Children, aged 8-12, were seen in schools and at home. Eight focus groups were conducted in two primary schools with 33 children. Nineteen of the families of these children participated in follow-up home interviews, in which 21 focus group children and a further 21 children (siblings, cousins and friends) were seen at home. Multiple methods were used: pictures and photographs of 'work', drawings, a poem, vignettes, word games, and a 'life mode technique'. The paper discusses children's concepts of 'work'; children's knowledge of parental work and the oil industry; children's perceptions of the impact of work on their parents; children's accounts of the effects of parental work on them and the importance of 'family time'; children's own work aspirations; and children's views and values about involvement, communication and decision making regarding parental work. Similarities and differences between children's accounts are highlighted. Sobre el telón de fondo del aumento de paso del trabajo y de la vida familiar en esta última década, y la intensificación del debate 'trabajo/familia' que lo acompaña, este artículo aboga por lo necesidad de incluir a los niños como partes interesadas en tal debate. El estudio etnográfico sobre el cual se basa este artiículo reune a los niños, la familia, el trabajo y la comunidad para explorar las interrelaciones entre el cambio de lugar del trabajo, el empleo de los padres y la vida familiar en la industria petrolera y del gas natural en Escocia. Este artículo se centra específicamente en las cuentas de unos niños del trabajo de los padres y de la interrelación entre el trabajo y la familia. Se entrevistaron a unos niños de 8—12 anos de edad en la escuela y en casa. Se realizaron ocho grupos de enfoque con 33 niños en dos escuelas de estudios primarios. De las familias de estos niños, 19 participaron en entrevistas de seguimiento, en las cuales 21 niños de los grupos de enfoque y 21 niños más (hermanos, primos y amigos,) fueron entrevistados en casa. Se emplearon múltiples métodos: ilustraciones y fotografías de ‘trabajo', dibujos, un poema, estampas, juegos con palabras y una ‘técnica modo de vida'. El artículo trata de los conceptos de los niños del trabajo; los conocimientos de los niños del trabajo de los padres y de la industria petrolera; las percepciones de los niños del efecto del trabajo en sus padres; las cuentas de los niños de los efectos del trabajo de los padres en los mismos niños y de la importancia del ‘tiempo para la familia'; las propias aspiraciones del los niños acerca del trabajo; y los puntos de vista y los valores de los niños sobre la participación, la comunicación y la toma de decisiones acerca del trabajo de los padres. Se ponen del relieve los elementos en común y las diferencias entre las cuentas de los niños.     

条件绝对转移指令与条件相对转移指令

本文主要对条件绝对转移指令与条件相对转移指令的使用范围进行分析并举例说明.     

世纪之交的高师物理实验教学初探

本文从大、中学物理实验教学的现状出发，对大学物理实验教学在培养适应多样化需要的跨世纪人才中，应怎样优化和改革各教学环节作了初步探索。     

论学校管理伦理的四大功能

学校管理伦理具有导向功能、调节功能、激励功能、教化功能。认识学校管理伦理的这些功能,可以让我们从动态上整体地把握学校管理伦理的本质和特征,深入了解学校管理伦理对于学校管理活动的重要意义和价值。     

多媒体计算机辅助课堂教学的实践与探索

根据笔者多年的教学实践和经验,分析总结多媒体计算机辅助课堂教学能激发学生学习兴趣、提高课堂教学效率、有利于构建师生之间信息交流畅通的教学环境、创建在教师指导下学生自主式的学习环境等诸多优越性。针对该教学手段目前存在的问题和不足,提出在先进的教学理论指导下进行精心的教学设计、强调教育的人文化内涵、坚持以学生为本和舍得花费更多的时间和精力对各个教学环节进行精心设计和策划等多媒体计算机辅助课堂教学策略。     

Paulo Freire in the Composition Classroom

The composition classroom in which students can relate and assess their attitudes and suppositions about sexuality and gender through building on the narrative of their lives, is vital to transforming homophobic attitudes and social structures. Paulo Freire's theories of transformative education and his concept ofpraxishelp to create this classroom. The author discusses how she createspraxisin her classrooms, which she believes is essential to social, legal, and political change: to consolidating and expanding increased equity for lesbian, gay, bisexual, and transgender people, indeed to all marginalized peoples.