Search results

1 – 10 of 31
Per page
102050
Citations:
Loading...
Access Restricted. View access options
Article
Publication date: 1 October 1999

Alison Sarah Tomlin, Saktipada Ghorai, Gordon Hart and Martin Berzins

High resolution models of air pollution transport and transformation are necessary in order to test possible abatement strategies based on pollution control and to forecast high…

357

Abstract

High resolution models of air pollution transport and transformation are necessary in order to test possible abatement strategies based on pollution control and to forecast high pollution episodes. Models are especially relevant for secondary pollutants like ozone and nitrogen dioxide, which are formed in the atmosphere through nonlinear chemical reactions involving primary pollutant species, often far from their sources. Often we are trying to resolve the interactions between plumes from point sources such as power stations and regional pollution tides of ozone formed in other European countries. One method of tackling this problem of different scales is to use different grid sizes, using highly resolved grids in regions where the structure is very fine. Telescopic gridding is currently used in high emission areas or around sensitive receptor points. However, since meteorological conditions vary, this method cannot resolve a priori highly structured regions away from sources, e.g. along plumes. Such refinement can be achieved using adaptive methods which increase resolutions in regions of steep spatial gradients. This article describes the use of 3D adaptive gridding models for pollution transport and reactions using both a layered and a fully adaptive 3D tetrahedral approach and provides examples which show the effect of grid resolution on secondary pollutant formation.

Details

Environmental Management and Health, vol. 10 no. 4
Type: Research Article
ISSN: 0956-6163

Keywords

Access Restricted. View access options
Book part
Publication date: 21 May 2012

Sarah Brown

In the evaluation of most interventions in criminal justice settings, evaluators have no control over assignment to treatment and control/comparison conditions, which means that…

Abstract

In the evaluation of most interventions in criminal justice settings, evaluators have no control over assignment to treatment and control/comparison conditions, which means that the treated and comparison groups may have differences that lead to biased conclusions regarding treatment effectiveness. Propensity score analysis can be used to balance the differences in the groups, which can be used in a number of ways to reduce biased conclusions regarding effectiveness. A review of propensity scoring studies was conducted for this chapter, where the limited number of evaluations of criminal justice interventions using these methods was identified. Due to the small number of these studies, research was also reviewed if propensity scoring had been employed to evaluate interventions that are similar to those in criminal justice systems. These studies are used as examples to demonstrate how the methods can be used to evaluate criminal justice interventions, the different ways propensity scores can be used to analyse treatment and comparison group differences, and the strengths and limitations of this approach. It is concluded that, while not appropriate for all interventions/settings, propensity score analysis can be useful in criminal justice arenas, at least to investigate the comparability of treatment and comparison groups, with suspected non-comparability being a common weakness of traditional quasi-experimental studies and frequently cited limitation in terms of drawing efficacy conclusions from such evaluations.

Details

Perspectives on Evaluating Criminal Justice and Corrections
Type: Book
ISBN: 978-1-78052-645-4

Access Restricted. View access options
Book part
Publication date: 2 May 2023

Natalie Glynn

Abstract

Details

Youth Transitions Out of State Care: Being Recognized as Worthy of Care, Respect, and Support
Type: Book
ISBN: 978-1-80262-487-8

Access Restricted. View access options
Article
Publication date: 12 October 2023

Daniel Vankov, David Kozma, Borislav Vankov, Johan Chiers, Martin Galanternik and Lin Wang

Entrepreneurship can help tackle economic problems, such as unemployment. It is often promoted through education programs. There is a limited comprehensive and rigorous…

185

Abstract

Purpose

Entrepreneurship can help tackle economic problems, such as unemployment. It is often promoted through education programs. There is a limited comprehensive and rigorous understanding of how entrepreneurship education programs and their ubiquitous distance delivery affect young people's entrepreneurial self-efficacy and intention, particularly in non-formal settings. The purpose of this study is to address this gap.

Design/methodology/approach

Underpinned by the Social Cognitive Theory, this paper investigates the effects of one entrepreneurship education program in a study with 145 young people from five countries aged 18 to 25 years, 62 Intervention and 83 Control participants. The program's impact on the participants' entrepreneurial intention and self-efficacy (across six sub-dimensions) was assessed in a one-off two-week quasi-experiment. Ex-ante and ex-post self-reported data were collected about the participants.

Findings

One-way analyses of covariance were performed to assess separately for changes in the Intervention participants' answers, relative to the Control group. The results of this study suggest the program significantly affected all measures.

Originality/value

These findings contribute to the discussions on the education programs’ effectiveness in promoting entrepreneurship. As a result, they may contribute to entrepreneurship education overcoming geographical and socio-economic hurdles (cost, time and entry barriers) to advance the development of industry, economy and community worldwide.

Details

Journal of Entrepreneurship in Emerging Economies, vol. 16 no. 6
Type: Research Article
ISSN: 2053-4604

Keywords

Access Restricted. View access options
Book part
Publication date: 18 March 2025

Giovanni Cellini and Carlotta Mozzone

Social work developed using information and communication technologies (ICTs) within a techno-social sphere has been defined as ‘e-social work’. It is a social work field that…

Abstract

Social work developed using information and communication technologies (ICTs) within a techno-social sphere has been defined as ‘e-social work’. It is a social work field that includes, among others, the use of digital devices and digital platforms in the professional relationship (with individuals, groups and communities), social service programs' monitoring and social work education. Through a literature review, the chapter will explore some parts of the international debate on e-social work. It seems to especially emphasise the positive aspects of digitisation in social work; at the same time, questions and ethical issues are proposed, especially about the social work clients' digital gaps and the need to protect vulnerable people. Digitalisation influences clients' behaviour and affects processes of social exclusion and inclusion. With reference to the elders, for example, the impact of digital divides is very significant; hence, social workers need to promote every tool at their disposal to reduce it to the bare minimum. At the same time, social workers face some risks of using digital devices and digital platforms in the professional one-to-one relationship, which especially during the Covid-19 pandemic have been increased in the welfare system.

Access Restricted. View access options
Article
Publication date: 10 June 2020

Iraci de Souza João-Roland and Maria L. Granados

Identify the drivers of social innovation (SI) that bring together the main management tools and approaches associated with the creation of SI in social enterprises (SEs).

1829

Abstract

Purpose

Identify the drivers of social innovation (SI) that bring together the main management tools and approaches associated with the creation of SI in social enterprises (SEs).

Design/methodology/approach

A systematic review was developed in the Web of Science, Scopus and EBSCO databases, using the keywords: social innovation, social enterprise and management. After analysis of quality and application of inclusion and exclusion criteria, 54 articles were selected for full analysis.

Findings

SI process was systemised into four steps: mapping and development, consolidation, scaling up and evaluation. The drivers of SI were mapped and classified into three main factors: contextual, organisational and managerial.

Practical implications

In organisational factors, business model was emphasised, as well as partnerships, participatory culture and intrapreneurship, adequate levels of bricolage and continuous learning. The management factors included the characteristics of the entrepreneur/innovator and managerial practices, where those that facilitate teamwork and the participation of all involved are best suited. In contextual factors, the highlight was the need for support from policy makers; community participation and demand for innovations that consider local context and usability.

Originality/value

This study connects previously scattered knowledge in a generic model of SI, highlighting routines and processes used, and provides a starting point for innovators and social entrepreneurs in the complex, uncertain and often unknown process of SI. Additionally, several research gaps were identified to be addressed by future research in the context of SI management.

Details

Journal of Small Business and Enterprise Development, vol. 27 no. 5
Type: Research Article
ISSN: 1462-6004

Keywords

Access Restricted. View access options
Article
Publication date: 31 December 2008

Lee Knifton, Alice Walker and Neil Quinn

Stigma and discrimination towards people with mental health problems is a global issue, imposing a considerable public health burden in terms of social isolation, limited life…

577

Abstract

Stigma and discrimination towards people with mental health problems is a global issue, imposing a considerable public health burden in terms of social isolation, limited life chances, delayed help‐seeking behaviour and stress. While numerous initiatives have been undertaken to address these issues, an evidence base for what works is still emerging. This paper explores the impact of 15 population‐level awareness workshops delivered over a five‐month period to 137 participants. These were employees drawn from workplaces identified as being important in the day‐to‐day lives of people with mental health problems. Evaluation approaches maximised specificity, sensitivity and anonymity and they assessed participant knowledge, attitude and behaviour. The workshops significantly improved participant knowledge. Attitude change was more complex with an overall significant improvement in attitudes, particularly in relation to unpredictability and recovery, but not dangerousness, which had more positive baseline attitudes. Social distance, a proxy for behavioural intent, had significant improvements in relation to ‘moderate’ social contact only. Qualitative feedback indicated that complex, unanticipated and positive messages had been absorbed by participants and influenced beliefs and behavioural intent. Service user narratives focusing on recovery were identified as the most valuable component of the intervention.

Details

Journal of Public Mental Health, vol. 7 no. 4
Type: Research Article
ISSN: 1746-5729

Keywords

Access Restricted. View access options
Article
Publication date: 8 February 2013

Julie A. Pirsch, Stacy Landreth Grau and Michael Jay Polonsky

The aim of this paper is to outline key social marketing issues apparent in deceptive weight‐loss advertising, from the perspective of government policy‐makers, manufacturers, the…

1520

Abstract

Purpose

The aim of this paper is to outline key social marketing issues apparent in deceptive weight‐loss advertising, from the perspective of government policy‐makers, manufacturers, the media, and consumers. The purpose is to examine the complexity of one aspect of the obesity battle and provide a framework for coordinated and integrated social marketing initiatives from a multiple stakeholder perspective.

Design/methodology/approach

The results of deceptive weight‐loss advertising are framed using the harm chain model, and the paper offers recommended solutions based on a framework of marketing, education and policy changes across the network of stakeholders.

Findings

This paper concludes that a resolution to the harm created by deceptive weight‐loss advertising can be achieved by the creation of a more holistic, system‐wide solution to this important health and policy issue. This networked approach must involve all aspects of harm in a multi‐stakeholder solution, including both upstream and downstream integration. Specific recommendations are made for policy‐makers, manufacturers, the media, and consumers to achieve this goal.

Social implications

From a marketing perspective, analyzing the issue of deceptive weight‐loss advertising using the harm chain allows for the creation of a more holistic, system‐wide solution involving stakeholders in all aspects of harm for this important health and policy issue.

Originality/value

This research examines the problem of obesity and weight‐loss advertising from the unique perspective of the harm chain framework. The authors make unified recommendations for various stakeholders including industry, media, government and consumers, in order to direct integrated social marketing and consumer‐oriented strategies within this industry.

Details

Journal of Social Marketing, vol. 3 no. 1
Type: Research Article
ISSN: 2042-6763

Keywords

Access Restricted. View access options
Article
Publication date: 1 August 2016

Doddy Setiawan, Bandi Bandi, Lian Kee Phua and Irwan Trinugroho

This research aims to examine the effect of ownership structure on dividend policy using the Indonesian context. The most common ownership structure is concentrated in the hand of…

4136

Abstract

Purpose

This research aims to examine the effect of ownership structure on dividend policy using the Indonesian context. The most common ownership structure is concentrated in the hand of family owners except in the UK and USA (La Porta et al., 1998, 2000). Family owners hold more than half of the companies in Indonesia (Carney & Child, 2013; Claessens et al., 2000). Family firms play an important role in Indonesia. Another important characteristic that emerges is the rise of government- and foreign-controlled firms in Indonesia. Thus, this research also divides ownership concentration into family firms, government-controlled and foreign-controlled firms.

Design/methodology/approach

Samples of this research consist of dividend announcements during 2006-2012 in Indonesian Stock Exchange. This research excluded financial data because these have characteristics that are different non-financial sectors’ characteristics. The final sample of this research consists of a 710 firm-year observation.

Findings

The result of this research shows that ownerships have a positive effect on dividend payout. This research divides the sample into family-controlled firms, government-controlled firms (GOEs) and foreign-controlled firms. This research shows that government- and foreign-controlled firms have a positive impact on dividend payout. However, family firms have a negative effect on the dividend payout. Family firms pay lower dividends because they prefer to control it themselves. Family firms earn benefit from those resources, but at the expense of minority shareholders. Thus, family firms engage in expropriation to minority shareholders.

Research limitations/implications

This study focuses on ownership structure of Indonesian listed firm. This study does not analyze the impact of other corporate governance mechanism such as board structure on dividend decisions. The owner of the companies (family, government and foreign firm) has an opportunity to put their member as part of board members. However, this study does not analyze the impact of board structure on dividend decisions.

Originality/value

This study provides evidence that ownership concentration positively affects dividend payout. However, there is a different effect of ownership structure (family-controlled firms, GOEs and foreign-controlled firm). Government- and foreign-controlled have a positive effect; however, family-controlled firm have a negative effect on dividend payout. Therefore, this study provides evidence of the importance of ownership structure on dividend decision.

Details

Journal of Asia Business Studies, vol. 10 no. 3
Type: Research Article
ISSN: 1558-7894

Keywords

Access Restricted. View access options
Article
Publication date: 1 June 2003

Jaroslav Mackerle

This paper gives a bibliographical review of the finite element and boundary element parallel processing techniques from the theoretical and application points of view. Topics…

1561

Abstract

This paper gives a bibliographical review of the finite element and boundary element parallel processing techniques from the theoretical and application points of view. Topics include: theory – domain decomposition/partitioning, load balancing, parallel solvers/algorithms, parallel mesh generation, adaptive methods, and visualization/graphics; applications – structural mechanics problems, dynamic problems, material/geometrical non‐linear problems, contact problems, fracture mechanics, field problems, coupled problems, sensitivity and optimization, and other problems; hardware and software environments – hardware environments, programming techniques, and software development and presentations. The bibliography at the end of this paper contains 850 references to papers, conference proceedings and theses/dissertations dealing with presented subjects that were published between 1996 and 2002.

Details

Engineering Computations, vol. 20 no. 4
Type: Research Article
ISSN: 0264-4401

Keywords

1 – 10 of 31
Per page
102050