Martha E. Williams and Daniel E. Burgard
This is the twelfth article on social science, humanities, news, and general databases in a continuing series of articles summarizing and commenting on new database products. Two…
Abstract
This is the twelfth article on social science, humanities, news, and general databases in a continuing series of articles summarizing and commenting on new database products. Two companion articles, one covering science, technology, and, medicine (STM) appeared in Online & CD‐ROM Review vol. 22, no. 4 and the other covering business and law (BSL) will appear in Online & CD‐ROM Review vol. 22, no. 6. The articles are based on the newly appearing database products in the Gale Directory of Dafabases. The Gale Directory of Databases (GDD) was created in January 1993 by merging Computer‐Readable Databases: A Directory and Data Sourcebook (CRD) together with the Directory of Online Databases (DOD) and the Directory of Portable Databases (DPD).
Martha E. Williams and Daniel E. Burgard
Outlines new database products appearing in the Gale Directory of Databases, a two‐volume work published twice a year. Provides figures for the distribution and percentage of new…
Abstract
Outlines new database products appearing in the Gale Directory of Databases, a two‐volume work published twice a year. Provides figures for the distribution and percentage of new and newly implemented social science, humanities, and news and general databases, together with a list of the databases including name, vendor and medium. Briefly discusses these by each medium.
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Martha E. Williams and Daniel E. Burgard
Outlines new database products appearing in the Gale Directory of Databases, a two‐volume work published twice a year. Provides figures for the distribution and percentage of new…
Abstract
Outlines new database products appearing in the Gale Directory of Databases, a two‐volume work published twice a year. Provides figures for the distribution and percentage of new and newly implemented business and law databases, together with a lits of the databases including name, vendor and medium. Briefly discusses these by each medium.
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Keywords
Martha E. Williams and Daniel E. Burgard
This is the eleventh article on social science, humanities, news, and general databases in a continuing series of articles summarizing and commenting on new database products. Two…
Abstract
This is the eleventh article on social science, humanities, news, and general databases in a continuing series of articles summarizing and commenting on new database products. Two companion articles, one covering science, technology, and, medicine (STM) appeared in Online & CD‐ROM Review vol. 22, no. 2 and the other covering business and law (BSL) appears here in Online & CD‐ROM Review vol. 22, no. 3. The articles are based on the newly appearing database products in the Gale Directory of Databases. The Gale Directory of Databases (GDD) was created in January 1993 by merging Computer‐Readable Databases: A Directory and Data Sourcebook (CRD) together with the Directory of Online Databases (DOD) and the Directory of Portable Databases (DPD).
Martha E. Williams and Harry A. Gaylord
This is the twelfth article on business and law (BSL) databases in a continuing series of articles summarizing and commenting on new database products. Two companion articles, one…
Abstract
This is the twelfth article on business and law (BSL) databases in a continuing series of articles summarizing and commenting on new database products. Two companion articles, one covering science, technology, and medicine (STM) appeared in Online & CD‐ROM Review vol. 22, no.4 and the other covering social science, humanities, news, and general (SSH) appeared in Online & CD‐ROM Review vol. 22, no. 5. The articles are based on the newly appearing database products in the Gale Directory of Databases. The Gale Directory of Databases (GDD) was created in January 1993 by merging Computer‐Readable Databases: A Directory and Data Sourcebook (CRD) together with the Directory of Online Databases (DOD) and the Directory of Portable Databases (DPD).
Martha E. Williams and Daniel E. Burgard
This is the ninth article on social science, humanities, news, and general databases in a continuing series of articles summarising and commenting on new database products. There…
Abstract
This is the ninth article on social science, humanities, news, and general databases in a continuing series of articles summarising and commenting on new database products. There are two companion articles: one covering science, technology and medicine (STM) appeared in Online & CDROM Review vol. 21, no. 1 and the other covering business and law (BSL) will appear in Online & CDROM Review vol. 21, no. 3. The articles are based on the newly appearing database products in the Gale Directory of Databases. The Gale Directory of Databases (GDD) was created in January 1993 by merging Computer‐Readable Databases: A Directory and Data Sourcebook (CRD) together with the Directory of Online Databases (DOD) and the Directory of Portable Databases (DPD).
Daniel Klis, Stefan Burgard, Ortwin Farle and Romanus Dyczij-Edlinger
– The purpose of this paper is to determine the broadband frequency response of the impedance matrix of wireless power transfer (WPT) systems comprising litz wire coils.
Abstract
Purpose
The purpose of this paper is to determine the broadband frequency response of the impedance matrix of wireless power transfer (WPT) systems comprising litz wire coils.
Design/methodology/approach
A finite-element (FE)-based method is proposed which treats the microstructure of litz wires by an auxiliary cell problem. In the macroscopic model, litz wires are represented by a block with a homogeneous, artificial material whose properties are derived from the cell problem. As the frequency characteristics of the material closely resemble a Debye relaxation, it is possible to convert the macroscopic model to polynomial form, which enables the application of model reduction techniques of moment-matching type.
Findings
FE-based model-order reduction using litz wire homogenization provides an efficient approach to the broadband analysis of WPT systems. The error of the reduced-order model (ROM) is comparable to that of the underlying original model and can be controlled by varying the ROM dimension.
Research limitations/implications
Since the present model does not account for displacement currents, the operating frequency of the system must lie well below its first self-resonance frequency.
Practical implications
The proposed method is well-suited for the computer-aided design of WPT systems. It outperforms traditional FE analysis in computational efficiency.
Originality/value
The presented homogenization method employs a new formulation for the cell problem which combines the benefits of several existing approaches. Its incorporation into an order-reduction method enables the fast computation of broadband frequency sweeps.
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Thespina J. Yamanis, Ana María del Río-González, Laura Rapoport, Christopher Norton, Cristiana Little, Suyanna Linhales Barker and India J. Ornelas
Purpose: Fear of deportation and its relationship to healthcare access has been less studied among immigrant Latinx men who have sex with men (MSM), a population at risk for HIV…
Abstract
Purpose: Fear of deportation and its relationship to healthcare access has been less studied among immigrant Latinx men who have sex with men (MSM), a population at risk for HIV and characterized by their multiple minority statuses. The first step is to accurately measure their fear of deportation.
Approach: We used an exploratory sequential mixed methods design. Eligibility criteria were that research participants be ages 18–34 years; Latinx; cisgender male; having had sex with another male; residing in the District of Columbia metro area; and not a US citizen or legal permanent resident. In Study 1, we used in-depth interviews and thematic analysis. Using participants' interview responses, we inductively generated 15 items for a fear of deportation scale. In Study 2, we used survey data to assess the scale's psychometric properties. We conducted independent samples t-test on the associations between scale scores and barriers to healthcare access.
Findings: For the 20 participants in Study 1, fear of deportation resulted in chronic anxiety. Participants managed their fear through vigilance, and behaviors restricting their movement and social network engagement. In Study 2, we used data from 86 mostly undocumented participants. The scale was internally consistent (α = 0.89) and had a single factor. Those with higher fear of deportation scores were significantly more likely to report avoiding healthcare because they were worried about their immigration status (p = 0.007).
Originality: We described how fear of deportation limits healthcare access for immigrant Latinx MSM.
Research implications: Future research should examine fear of deportation and HIV risk among immigrant Latinx MSM.
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Michelle Turner and Helen Lingard
The purpose of this paper is to investigate the impact of health promotion interventions in Queensland, Australia. During the research period, the workers’ employing organization…
Abstract
Purpose
The purpose of this paper is to investigate the impact of health promotion interventions in Queensland, Australia. During the research period, the workers’ employing organization, a large contracting organization, was engaged in a competitive tender to renew their service contract. The research therefore provided an opportunity to examine the impact of health promotion interventions in project-based work environments under conditions of job insecurity.
Design/methodology/approach
The sample comprised of workers contracted to provide facility maintenance and management services for a power station. Data were collected using a longitudinal survey of workers’ health, weekly logs recording health behaviour, and a post-intervention evaluation workshop. Health interventions implemented sought to encourage workers to eat more fruit and participate in a physical exercise programme.
Findings
Findings revealed that workers’ health was generally lower than the Queensland male population when measured using a standardized norm-based tool. The log data revealed that health behaviour fluctuated over time but did not show significant or sustained improvement with the introduction of the health interventions. The evaluation workshop revealed that workers’ concerns about their job security during the research period impacted their health behaviours.
Originality/value
The need to address the structural and organizational factors that influence the health of project-based workers is highlighted. In particular, concerns about continuity of work may otherwise reduce the beneficial effect of health promotion programmes.
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R. Dyczij‐Edlinger and O. Farle
The purpose of this paper is to enable fast finite element (FE) analysis of electromagnetic structures with multiple geometric design variables.
Abstract
Purpose
The purpose of this paper is to enable fast finite element (FE) analysis of electromagnetic structures with multiple geometric design variables.
Design/methodology/approach
The proposed methodology combines multi‐variable model‐order reduction with mesh perturbation techniques and polynomial interpolation of parameter‐dependent FE matrices.
Findings
The resulting reduced‐order models are of comparable accuracy as but much smaller size than the original FE systems and preserve important system properties such as reciprocity.
Research limitations/implications
The method is limited to mesh variations that are obtained from a nominal discretization by continuous deformation. Topological changes in the mesh are not permissible.
Practical implications
In contrast to the underlying FE models, the resulting reduced‐order systems are very cheap to analyze. Possible applications include parametric libraries, design optimization, and real‐time control.
Originality/value
The paper extends the scope of moment‐matching order‐reduction techniques to a class of non‐polynomial systems arising from FE models with geometric parameters.