bluuebunny/crossref_metadata_2025_split huggingface dataset:
Two-dimensional local Fourier image reconstruction via domain decomposition Fourier continuation method
Authors: Shi Ruonan , Jung Jae-Hun , Schweser Ferdinand 
Published: May 2018

AbstractThe MRI image is obtained in the spatial domain from the given Fourier coefficients in the frequency domain. It is costly to obtain the high resolution image because it requires higher frequency Fourier data while the lower frequency Fourier data is less costly and effective if the image is smooth. However, the Gibbs ringing, if existent, prevails with the lower frequency Fourier data. We propose an efficient and accurate local reconstruction method with the lower frequency Fourier data that yields sharp image profile near the local edge. The proposed method utilizes only the small number of image data in the local area. Thus the method is efficient. Furthermore the method is accurate because it minimizes the global effects on the reconstruction near the weak edges shown in many other global methods for which all the image data is used for the reconstruction. To utilize the Fourier method locally based on the local non-periodic data, the proposed method is based on the Fourier continuation method. This work is an extension of our previous 1D Fourier domain decomposition method to 2D Fourier data. The proposed method first divides the MRI image in the spatial domain into many subdomains and applies the Fourier continuation method for the smooth periodic extension of the subdomain of interest. Then the proposed method reconstructs the local image based on L2 minimization regularized by the L1 norm of edge sparsity to sharpen the image near edges. Our numerical results suggest that the proposed method should be utilized in dimension-by-dimension manner instead of in a global manner for both the quality of the reconstruction and computational efficiency. The numerical results show that the proposed method is effective when the local reconstruction is sought and that the solution is free of Gibbs oscillations.
Barriers to digitization in university libraries of Pakistan: a developing country’s perspective
Authors: Rafiq Muhammad , Ameen Kanwal , Jabeen Munazza 
Published: May 2018

Purpose
The purpose of this study is to identify barriers that are hindering digitization initiatives in university libraries of Pakistan.

Design/methodology/approach
The study opted a mixed-methods research design based on quantitative (QUAN) and qualitative (QUAL) strands by using a survey research method. The subjects of the study were central libraries of the universities (both public and private sector) of Pakistan. A self-administered structured questionnaire was used for QUAN data collection in the QUAN strand. In the QUAL phase, in-depth interviews of purposely selected 25 library experts from different parts of the country were conducted.

Findings
Meta-inferences were drawn from the findings of both QUAN and QUAL strands. Both of the research designs provided the requisite data to answer research questions of the study. The finding revealed the barriers which were hindering the digitization activities in university libraries of Pakistan.

Originality/value
The findings of the study are helpful for funding bodies, university libraries and university administration. The findings are also helpful for other developing countries with similar economic and/or social landscapes.
Artisan entrepreneurship: a systematic literature review and research agenda
Authors: Pret Tobias , Cogan Aviel 
Published: May 2018

PurposeThe purpose of this paper is to review and critique the extant body of literature on artisan entrepreneurship and to develop a research agenda for future studies based on the identified trends and themes.Design/methodology/approachA systematic literature review (SLR) was undertaken across 96 journals ranked by the Association of Business Schools. The initial search yielded 86 papers. Further scrutiny of these studies led to the development of exclusion criteria, resulting in a refined list of 32 articles which advance understanding of artisan entrepreneurship. Using an open coding approach, this SLR then identified seven core themes and 16 sub-themes which the extant literature examines.FindingsThis SLR finds that artisan entrepreneurship research contributes to understanding of entrepreneurial behaviour, context, motivation, development, resources, diversity and classification. It provides timely insights into coopetition practices, the reciprocal relationship between place and entrepreneurship and the coexistence of social and economic goals. It also reveals characteristics which facilitate venture development, discovers the mutability of various forms of capital, highlights the necessity of studying diverse experiences and identifies benefits and limits of typologies. Main elements of the resulting research agenda include calls for more quantitative research, further attention to context and more holistic treatment of a wider variety of stories.Originality/valueThis paper presents the first SLR of craft and artisan entrepreneurship research. It not only identifies, analyses and critiques the main streams in the literature, therefore providing an overview of the state of the field, but also highlights areas where this scholarship contributes to understanding of entrepreneurship and upon which future research can build. Artisan entrepreneurship is thus established as worthy of investigation in its own right and as an appropriate context in which to explore entrepreneurial processes. Furthermore, this SLR presents an agenda for future research to advance understanding of artisan entrepreneurship.
Resilience and effectuation for a successful business takeover
Authors: d’Andria Aude , Gabarret Ines , Vedel Benjamin 
Published: May 2018

Purpose
The purpose of this paper is to explore how resilience can support entrepreneurs in uncertain environments. The study’s objective is to show how different dimensions of resilience (emotional/cognitive) are dynamically connected to different logics of actions (causation/effectuation) allowing the development of a successful entrepreneurial project.

Design/methodology/approach
The study is based on a qualitative analysis of a blog written by an entrepreneur during the first 17 months of a search, negotiation, and financing process for a company takeover.

Findings
The results highlight that in high uncertainty, strong entrepreneurial resilience and shift of logics of action can contribute to the success of a business takeover. This study identifies forms of resilience during the business takeover process that helped the entrepreneur overcome adversity and succeed. Moreover, these forms of resilience seem to be related to effectual and causal logics.

Practical implications
This study could help future entrepreneurs succeed in the creation or takeover of an organization by improving knowledge of the relationship between resilience and logics of actions.

Originality/value
This study proposes a different approach to the study of entrepreneurial resilience by analyzing it in relation with the logics of action (causation/effectuation). Moreover, the study offers a modern methodological approach by using an internet blog as a data source.
The role of the categorization process on the influence of a famous football player on the evaluations of a football team
Authors: Puente-Díaz Rogelio , Cavazos-Arroyo Judith 
Published: May 2018

Purpose
The purpose of this paper is to examine how the categorization of a football player influences the evaluations of a football team among participants from Mexico and to test for the moderating role of need for closure. In order to test the hypotheses, the authors conduct two experiments.

Design/methodology/approach
The authors used an empirimental approach. Specifically in the experimental condition, the authors brought to mind, in one condition, the team membership of Lionel Messi and assessed the evaluations of Barcelona FC. In the control condition, the authors did not bring to mind the membership of Lionel Messi and only assessed the evaluations of Barcelona FC.

Findings
Results from two experiments showed that Barcelona FC obtained better evaluations when participants assigned Messi as one of its players. Evaluations were not moderated by a variable known to influence information processing such as need for closure.

Originality/value
It is a psychological truism that human judgments are context dependent. How good one judges a football team to be, depends not only on the specific qualities of the team, but also on the standard of comparison used to make that judgment. Surprisingly, scant attention has been given to context effects in team or player evaluations (see Puente-Díaz and Puente-Díaz, 2014 for an exception). The investigation seeks to fill this gap.
Frequent presentations to emergency departments and the collaborative community and emergency response
Authors: Harcourt Debra Irene , McDonald Clancy Jack , Cartlidge-Gann Leonie , Brown Nathan J. , Rayner Kim 
Published: May 2018

Purpose
Patient dependence on an emergency department (ED) for ongoing, non-urgent health care is a complex issue related to poor mental and physical health, disability, previous trauma, social disadvantage and lack of social supports. Working Together to Connect Care is an innovative program that provides an assertive community case management approach coupled with an ED management plan to support people who frequently attend the Royal Brisbane and Women’s Hospital ED. The program, which is yet to be fully evaluated, currently helps to manage a large number of patients with a wide variety of complex needs. To demonstrate the scope and capabilities of the program, the purpose of this paper is to present a series of case studies of patients who frequently attended the ED and subsequently became program participants.

Design/methodology/approach
A series of five case studies is used to illustrate the variety of patient characteristics and available management pathways. Outcomes, including rates of ED attendance, at five months after program commencement are also described.

Findings
The variety of characteristics and experiences of the patients in the case studies is representative of the program cohort as a whole. Program participation has resulted in improved patient outcomes as demonstrated by crisis resolution, housing stability, engagement with primary health care and reduced frequency of ED presentations.

Originality/value
A personalized, integrated-care management approach is both flexible and effective in responding to the complex needs of five patients who frequently attend EDs.
Black leaders matter
Authors: Miller Paul , Callender Christine 
Published: May 2018

PurposeThe purpose of this study is to evaluate factors that contribute to black male school leaders’ career progression and sustenance within the teaching profession. This, because the progression of black and minority ethnic (BME) teachers in Britain has been the subject of much debate. Fewer BME teachers are in leadership roles in education, and there are only 230 BME headteachers of approximately 24,000 primary and secondary headteachers.Design/methodology/approachThe headteachers’ professional lives are explored through the lenses of critical race theory and interpretivism. In doing so, it illuminates the journey towards and the realities of a group whose views are currently unrepresented in research on school leadership or that of the experiences of male BME teachers in England.FindingsThis study finds that whereas personal agency and determination are largely responsible for keeping these black headteachers in post, “White sanction” (Miller, 2016) has played a significant role in career entry and early career development. Furthermore, participants experience both limiting and facilitating structures as they negotiated their roles into headship and as headteachers. Limiting structures are those which constrain or hinder progression into leadership, whilst facilitating structures enabled participants to navigate and negotiate gendered racism, make progress in their careers and achieve success in their respective roles. Both limiting and facilitating structures include personal agency and contextual factors.Research limitations/implicationsThe paper also makes the point that more research is needed on current BME school leaders to examine the factors that motivate and enable them. Additionally, more research is needed on the limiting and facilitating structures identified in this study and on the potential generational differences that may exist between more established and newly appointed male BME school leaders. Studying generationally different school leaders may help to illuminate the salience of race and racism across an increasingly diverse population.Practical implicationsFurthermore, this paper also suggests that more BME school leaders are needed, thereby making the leadership teams of schools more representative, as well as raising aspirations and interest among BME teachers and therefore making black leadership sustainable.Originality/valueThis paper is an original piece of research that adds fresh insights into not only how black school leaders get into teaching and leadership but also significantly what keeps them there.
Financial factors that influence the size of nonprofit operating reserves
Authors: Grizzle Cleopatra , Sloan Margaret F. , Kim Mirae 
Published: May 2018

ABSTRACTAlthough operating reserves can aid nonprofit organizations in alleviating periods of fiscal stress, they are not widely used. This study examines organizational factors that impact the level of operating reserves in nonprofit organizations. It also explores the relationship of operating reserves with organizational demographics and financial health variables using a six-year (1998-2003) unbalanced panel regression model containing 460,437 observations. Findings demonstrate a positive relationship between operating reserves and administration ratio, profit margin, operating margin, and organization age. Conversely, the size of operating reserves is negatively related to leverage ratio, donations, and organization size. Revenue diversification, however, shows a mixed relationship with operating reserves among different types of nonprofit indicating complexity in risk-reducing strategy. This study contributes to understanding factors relevant to the presence, or absence, of nonprofit operating reserves.
The determinants of success in local earmarking: The case of new york city council discretionary expense grants
Authors: Wu Yonghong , Williams Daniel W. 
Published: May 2018

AbstractThis paper examines the determinants of success in seeking local government earmarked funding. We compile data of the aggregate amounts of the New York City Council discretionary expense grants received or requested by each council district every year during 2011-2013. The statistical results show that the allocation of the expense grants are politically motivated with more earmark funds flowing to the districts council leaders and key committee chairpersons represent. Furthermore, constituents of key committee chairpersons are more successful in the earmarking process. Districts with larger African American population have lower success ratios possibly because they request significantly more earmarks. These empirical findings are consistent with anecdotal perceptions that earmarking is not substantially effective in meeting community need.
Headquarters value added and subsidiary performance: insights from Thailand
Authors: Kingkaew Suthikorn , Dahms Sven 
Published: May 2018

PurposeThe purpose of this paper is to understand the impact of network relationship strength and subsidiary initiatives on the headquarters value added and performance in foreign-owned subsidiaries.Design/methodology/approachThis study is based on survey data collected from foreign-owned subsidiaries located in Thailand. The authors use symmetric structured equation modelling partial least squared (SEM-PLS) and asymmetric fuzzy set qualitative comparative analysis (fsQCA) techniques to analyse the data.FindingsThe authors found that intra-organisational relationship strength is one of the key determinants for high headquarter value added. They also found that headquarter value added plays a crucial role in explaining subsidiary performance. The role of subsidiary initiatives seem overall less pronounced than initially thought.Originality/valueThe originality of this study lies in the conceptual framework based on networks and subsidiary initiatives. This is one of the few studies that empirically tests headquarters value-added determinants in subsidiaries located in an emerging market. Furthermore, the authors use SEM-PLS and fsQCA to look beyond more commonly tested symmetric associations.
The development of a safety and quality culture assessment tool from a longitudinal, mixed-method research journey
Authors: Taylor Joanne Zaida , Rostron Katherine Isabelle 
Published: May 2018

Purpose
The purpose of this paper is to describe the 16-year research and development journey of the Culture Excellence assessment tool, which is used widely to assess safety and quality culture in the food industry. It is the third article in a theme issue of Worldwide Hospitality and Tourism Themes, discussing the importance of measuring food safety and quality culture.

Design/methodology/approach
An iterative process of in-depth interviews and mixed-method case studies led to the development of a conceptual model and an online assessment tool, which are used to gain insight into safety and quality culture.

Findings
The research process resulted in a conceptual model of four categories and 20 dimensions of safety and quality culture, alongside a practical online assessment tool to enable their measurement; these categories and dimensions are demonstrated using qualitative quotations.

Originality/value
This paper introduces qualitative data on safety and quality culture direct from the food industry with academic analysis to highlight new dimensions and issues. It will be of value to food safety and quality practitioners, trainers, auditors and other stakeholders involved in the food industry.
Triangulation
Authors: Manning Louise 
Published: May 2018

Purpose
The purpose of this paper is to critique the existing and emerging alternative approaches being used by regulators and industry to verify the presence and efficacy of food safety management systems (FSMS). It is the second paper in a theme issue of Worldwide Hospitality and Tourism Themes, discussing the importance of measuring food safety and quality culture.

Design/methodology/approach
This paper, primarily focused on UK examples, examines academic and grey literature to consider the options for effective verification of FSMS with emphasis on the hospitality sector including the use of triangulation.

Findings
Third-party certification (TPC) compliance audits alone will not deliver effective verification of the FSMS and the cultural context of how formal systems are implemented, monitored and internally verified. Triangulation needs to be undertaken during the FSMS verification process which at its simplest is a Question, Observe, Measure (QOM) triad and at its more complex involves TPC compliance audits and performance assessment using data analysis methodology and product and environmental testing.

Originality/value
The paper will be of value to practitioners, researchers and other stakeholders involved in the hospitality industry.
Review article: The utility of troponin and other investigations in patients presenting to the emergency department with supraventricular tachycardia
Authors: Fernando Harith , Adams Nicholas , Mitra Biswadev 
Published: May 2018

AbstractPatients with supraventricular tachycardia commonly present to the ED. There is a lack of consensus regarding assessment of these patients. Our aim was to determine the utility of troponin and four other investigations (full blood examination, electrolyte levels, thyroid function tests and chest X‐rays) commonly requested for these patients. MEDLINE, EMBASE and Cochrane Central Register of Controlled Trials (January 1992–March 2017) were searched for randomised controlled trials and observational studies (of sample size greater than 10). Our search strategy yielded no randomised controlled trials and seven observational studies with significant statistical heterogeneity among selected studies (I2 87.3%, P < 0.001). Included studies investigated a total of 1155 patients. All studies reported on the utility of troponin testing in this patient population. The pooled proportion of patients investigated with troponin was 0.66 (95% confidence interval 0.44–0.88). The pooled proportion of positive troponin tests was 0.32 (95% confidence interval 0.23–0.41). Only one study reported on the utility of the remaining four investigations with abnormal results as follows: thyroid stimulating hormone 14%, haemoglobin 6%, white cell count 19% and chest X‐ray 22%. Investigations are commonly requested for patients presenting with supraventricular tachycardia. Troponin testing is commonly performed with a high proportion of positive findings although these results did not appear to be associated with major adverse cardiac events. Heterogeneity among studies and low levels of evidence precluded conclusions on full blood examinations, electrolyte levels, thyroid testing and utility of chest X‐rays in this patient population.
Spatial dispersion of retail margins: evidence from Turkish agricultural prices
Authors: Yilmazkuday Hakan 
Published: May 2018

AbstractThe farmer share of retail prices is shown to be about 16%, corresponding to about 84% of a distribution share, on average across agricultural products and regions within Turkey. The share of transportation costs in retail prices is only about 7%, while the share of retail margins is about 77% of retail prices. The dispersion of retail prices across regions is shown to be mostly due to local wages and variable markups, while the contribution of traded‐input prices is relatively small. Accordingly, the high dispersion of farmer prices across locations is not reflected in the dispersion of retail prices due to the high contribution of retail margins. These retail margins are also shown to account for about one third of the consumer welfare dispersion across regions and more than half of the consumer welfare dispersion across products.
Impact of graft‐to‐recipient weight ratio on small‐for‐size syndrome following living donor liver transplantation
Authors: Bell Richard , Pandanaboyana Sanjay , Upasani Vivek , Prasad Raj 
Published: May 2018

BackgroundThis meta‐analysis aimed to compare living donor liver transplantation (LDLT) grafts with a graft‐to‐recipient weight ratio (GRWR) of <0.8 to grafts with a GRWR ≥0.8 with regards to small‐for‐size syndrome (SFSS) and short and longer term outcomes.MethodsAn electronic search was performed of the MEDLINE, EMBASE and PubMed databases until December 2016 using both subject headings (MeSH) and free text. Pooled odds ratios and hazard ratios were calculated using fixed‐ and random‐effects models for meta‐analysis.ResultsEight studies including 1833 patients met the inclusion criteria. The rate of SFSS was 10% in the <0.8 group and 5% in the ≥0.8 group (odds ratio: 1.69 (1.09, 2.61) (P = 0.020)). No significant difference was noted between the two groups with regards to graft survival up to 5 years (hazard ratio: 1.31 (0.88, 1.94) (P = 0.190)). Similarly, no significant difference was noted in overall complications (P = 0.06), biliary (P = 0.290) or vascular complications (P = 0.190), perioperative haemorrhage (P = 0.150), post‐operative mortality (P = 0.810) and rejection (P = 0.160).ConclusionThe incidence of SFSS in grafts with a GRWR <0.8 is more than in GRWR ≥0.8; however, the low GRWR does not appear to impact perioperative outcomes or graft survival.