A note on the equality of the OLSE and the BLUE of the parametric function in the general Gauss–Markov model

In this note we consider the equality of the ordinary least squares estimator (OLSE) and the best linear unbiased estimator (BLUE) of the estimable parametric function in the general Gauss–Markov model. Especially we consider the structures of the covariance matrix V for which the OLSE equals the BLUE. Our results are based on the properties of a particular reparametrized version of the original Gauss–Markov model.      

Ecosocial change and community resilience: The case of “Bönan” in glocal transition

ABSTRACT

The aim of this article was to identify and discuss ecosocial changes and community resilience mechanisms in a coastal fishing community of Sweden – Bönan. Data were collected through eight semi-structured interviews and field observations. An abductive thematic analysis was used to analyze data and background literature. The findings showed that Bönan has been exposed to a combination of ecosocial changes that have transformed the community, and therefore required community resilience interventions. This article concludes that social workers need to take an active part in ecosocial work for enhancing community resilience.     

Equalities between OLSE,BLUE and BLUP in the linear model

We consider equalities between the ordinary least squares estimator ( $\mathrm {OLSE} $ ), the best linear unbiased estimator ( $\mathrm {BLUE} $ ) and the best linear unbiased predictor ( $\mathrm {BLUP} $ ) in the general linear model $\{ \mathbf y , \mathbf X \varvec{\beta }, \mathbf V \}$ extended with the new unobservable future value $ \mathbf y _{*}$ of the response whose expectation is $ \mathbf X _{*}\varvec{\beta }$ . Our aim is to provide some new insight and new proofs for the equalities under consideration. We also collect together various expressions, without rank assumptions, for the $\mathrm {BLUP} $ and provide new results giving upper bounds for the Euclidean norm of the difference between the $\mathrm {BLUP} ( \mathbf y _{*})$ and $\mathrm {BLUE} ( \mathbf X _{*}\varvec{\beta })$ and between the $\mathrm {BLUP} ( \mathbf y _{*})$ and $\mathrm {OLSE} ( \mathbf X _{*}\varvec{\beta })$ . A remark is made on the application to small area estimation.     

Family Structure,Gender, and Adolescent Emotional Well-Being

This article focuses on gender differences in emotional well-being of adolescents in five different family settings. It analyzes two main mediators—economic deprivation and parental socialization—and is based on unusually rich survey data combining parental and child reports as well as information from administrative registers. The results show lower well-being of children in single-mother families and stepfamilies. These associations are mainly mediated through parental socialization rather than economic deprivation, except for girls in their early to midteens living with a single mother. Different patterns of lower well-being levels for boys and girls in different family settings are found.     

The organisational environment’s impact on the servitization of manufacturers

The transformation of product-centric businesses towards service provision is claimed to be a viable strategy for manufacturers across industries and sectors. However, previous research on servitization has not paid sufficient attention to explicitly investigating its suitability for manufacturers operating in different organizational environments. Accordingly, the purpose of this study is to establish propositions on the contingency factors in the organizational environment that affect the servitization of manufacturers at the industry level. Drawing on the theory of organisational ecology, the propositions include the effects of population density, competing populations, resource dependency, institutional linkages, technology, and political forces. Our study suggests that the operating environment explains at least part of the difficulties in the servitization process, which have been identified in previous studies, but whose causes have remained without full explanation. The study adds to the current understanding of the contingencies of transformation toward service provision and contributes to the managerial decision-making processes related to servitization.     

College Based Placement Co-ordinators in the United Kingdom: Their Perceptions of Stress

Placement co-ordinators on college-based social work courseshave a demanding task, liaising with students, tutors and agencytraining sections in order to provide appropriate practice learningopportunities. They cope with long established limitations onthe quantity and quality of placements. Therefore, the rolewould appear to be a stressful one. This research examines jobsatisfaction, pressure and constraints, psychological well-being,the impact of the host institution, and some changes that mightalleviate stress. A postal questionnaire was sent to all placementco-ordinators on college-based social work courses in the UK.The findings indicated that small numbers of placement co-ordinatorsexperienced high levels of stress to the point of sufferingfrom ‘borderline’ anxiety and depression. Stressscores for placement co-ordinators as a whole, however, werelower than those of the general UK population. The co-ordinatorsenjoyed considerable autonomy and a reasonable amount of support.Generally, they had positive attitudes towards the institutionswhere they worked. Males tended to emphasize the importanceof the institutional context rather than females. However, aroundhalf of the placement co-ordinators had considered giving uptheir posts; only about a quarter liked their work. Respondentsenjoyed only limited job satisfaction, felt pressurized, subjectto excessive demands and were ambivalent in attitudes aboutmanagers, colleagues, students and practice teachers.     

Adolescent Educational Outcomes in Blended Families: Evidence from Swedish Register Data

Using Swedish register data, this article examines the association between having experienced the birth of a younger half-sibling and two educational outcome measures among Swedish 9th graders from 1998 to 2007. The data set, with the full population of 9th graders (N = 874,812), enables us to differentiate between adolescents with maternal as well as paternal half-siblings. The results show that adolescents in postseparation families with half-siblings have lower overall grades and are less likely to be eligible for school continuation after 9th grade than those without half-siblings. The results point to interesting gender patterns both by the sex of the child and whether the half-sibling is maternal or paternal.     

Health promotional education: differences between school nurses' health counselling and teachers' health instruction in the finnish ENHPS

The purpose of the study was to describe school nurses' (N=24) and teachers' (N=25) opinions of how the health‐related goals in their counselling and instruction were attained and to find out the possible differences between the two groups in the Finnish European Network of Health Promoting Schools. The data were collected by a questionnaire and analysed statistically. Some significant differences existed. School nurses ranked non‐intoxicant use, human growth and development and life control highest in their health counselling, whereas teachers underlined health maintenance and well‐being, respect for other people and non‐intoxicant use. School nurses' health counselling covered disease prevention and treatment better compared to teachers' health instruction, whereas health maintenance and well‐being, environmental health, first aid and safety and respect for other people were covered better in teachers' health instruction. Teachers were more promotional and community‐oriented, while school nurses emphasised a more preventive and individually oriented approach.