Structured orthogonal families of one and two strata prime basis factorial models

The models in structured families correspond to the treatments of a fixed effects base design \(\pi \) . Then the action of factors in \(\pi \) , on the fixed effects parameters of the models, is studied. Analyzing such a families enables the study of the action of nesting factors on the effects and interactions of nested factors. When \(\pi \) has an orthogonal structure, the family of models is said to be orthogonal. The models in the family can have one, two or more strata. Models with more than one stratum are obtained through nesting of one stratum models. A general treatment of the case in which the base design has orthogonal structure is presented and a special emphasis is given to the families of prime basis factorials models. These last models are, as it is well known, widely used in fertilization trials.     

论文化自觉与近20年来的“湖湘文化”研究

当今许多区域文化研究都是基于"文化自觉"而展开.但近20年来,学界对"湖湘文化"的研究,有渐被模糊化、功利化和庸俗化的趋势.因此,我们应以"文化自觉"的态度,在研究领域上将其分为"湖湘学派"、"湖湘精神"与"湖南文化",并在深化研究的同时,去除某些庸俗因素,使其精神内化为湖南社会发展的动力.     

金堡与逃禅——“以佛菩萨之心为心”

金堡是明末清初的著名遗民和僧人。受易代剧变和人生际遇的影响,金堡最终选择了逃禅。逃禅后,与大多数"以忠孝作佛事"的逃禅遗民不同,金堡彻底放弃了儒家立场,转向了佛教人生。他主张"道法不在节义中",用佛法拯救乱世人心,以菩萨之心关怀天下,救助难民。但时人以"遗民之金堡"来衡定"高僧之澹归",对他多有斥责,实在是一误解。     

A zero-inflated non default rate regression model for credit scoring data

The aim of this paper is to propose a survival credit risk model that jointly accommodates three types of time-to-default found in bank loan portfolios. It leads to a new framework that extends the standard cure rate model introduced by Berkson and Gage (1952 Berkson, J., and R. P. Gage. 1952. Survival curve for cancer patients following treatment. Journal of the American Statistical Association 47 (259):501–15.[Taylor & Francis Online], [Web of Science ®] , [Google Scholar]) regarding the accommodation of zero-inflations. In other words, we propose a new survival model that takes into account three different types of individuals which have so far not been jointly accounted for: (i) an individual with an event at the starting time (zero time); (ii) non susceptible for the event, or (iii) susceptible for the event. Considering this, the zero-inflated Weibull non default rate regression models, which include a multinomial logistic link for the three classes, are presented using an application for credit scoring data. The parameter estimation is reached by the maximum-likelihood estimation procedure and Monte Carlo simulations are carried out to assess its finite sample performance.     

“非直接利益冲突”的法理思考

＂非直接利益冲突＂根源于现实利益问题。我国现行法律制度的不健全,是导致群众利益受损并引发＂非直接利益冲突＂的深层次原因。要从根本上化解＂非直接利益冲突＂,必须切实做好法律制定和法律清理,为群众利益筑起坚固的＂防火墙＂和＂安全网＂。     

《资本论》中的低碳经济理论简述——从经济伦理的视角

从《资本论》的人道观看,低碳经济是人类应然且必然的选择,但是经济活动的碳放量并非越低越好,更不是无碳最好,而且低碳经济未必就是人道的经济。从《资本论》的自由观看,经济活动碳放量的高低变化反映了人类自由不断实现的过程,发展现代社会的低碳经济,科技发展是关键,量力而行是基本原则。从《资本论》的正义论看,资本主义制度下高碳经济的高速发展从根本上讲不是源于其制度的正义性而是源于其制度的不正义性。《资本论》对高碳经济的正义审视仍未过时,对建设我国低碳经济的制度保障也不乏现实的启示性。     

Subjective well-being and school engagement before versus during the COVID-19 pandemic: What good are positive emotions?

The present study overcomes the limited empirical evidence on the association between well-being and school engagement in times of adversity by exploiting available data from two large and comparable samples of eighth graders; one obtained prior to the COVID-19 pandemic and the second obtained during the pandemic. Results suggest that adolescents were less engaged with their learning context during the pandemic, as well as lower in positive and negative affect, but slightly more satisfied with life. Through SEM we found a stronger positive association between positive affect and school engagement in the COVID-19 group compared with the pre-COVID-19 group. This finding highlights the important role of positive affect in supporting better academic functioning in the aftermath of a global crisis.     

Identification of the mental workload of public employees in the administrative sector at a public university

In the workplace there are risk factors that can overwhelm the health of the worker causing physical and psychological disorders. Among these disorders, is occupational stress. Thus, this research proposes to measure the mental workload of job stress from the identification of demand, control and social support. It is an observational cross-sectional epidemiological character, performed with the Rectory office workers at the State University of West Paraná (Unioeste). Data collection was due to the application of the "Job Stress Scale" (JSS) and in its reduced version adapted to Portuguese. The survey sample consisted of 44 individuals. Statistical analysis was correlated inversely with medium intensity (r = -0.404) between age and social support. For males was found between control and age (r = 0.603). According to the data obtained, we conclude that most workers are exposed to passive work, leading to loss of skills or disinterest in the job. This study highlights the importance of research in the area and the need for new actions that change the conditions of stress at work.     

Colour, vision and ergonomics

This paper is based on a research project - Visual Communication and Inclusive Design-Colour, Legibility and Aged Vision, developed at the Faculty of Architecture of Lisbon. The research has the aim of determining specific design principles to be applied to visual communication design (printed) objects, in order to be easily read and perceived by all. This study target group was composed by a selection of socially active individuals, between 55 and 80 years, and we used cultural events posters as objects of study and observation. The main objective is to overlap the study of areas such as colour, vision, older people's colour vision, ergonomics, chromatic contrasts, typography and legibility. In the end we will produce a manual with guidelines and information to apply scientific knowledge into the communication design projectual practice. Within the normal aging process, visual functions gradually decline; the quality of vision worsens, colour vision and contrast sensitivity are also affected. As people's needs change along with age, design should help people and communities, and improve life quality in the present. Applying principles of visually accessible design and ergonomics, the printed design objects, (or interior spaces, urban environments, products, signage and all kinds of visually information) will be effective, easier on everyone's eyes not only for visually impaired people but also for all of us as we age.