bluuebunny/crossref_metadata_2025_split huggingface dataset:
Transformative gamification services for social behavior brand equity: a hierarchical model
Authors: Tanouri Afshin , Mulcahy Rory , Russell-Bennett Rebekah 
Published: May 2019

Purpose
The purpose of this paper is twofold: first, to test a hierarchical model with interrelationships between social support, value and brand equity to examine the effect of a transformative gamification service on users’ well-being behaviors; and second, to demonstrate the usefulness of brand equity to measure social behavior brands encouraged via transformative gamification services.

Design/methodology/approach
Data were collected (n=351) via users of a transformative gamification service delivered via mobile in Iran. Structural equation modeling was used to test the model.

Findings
The results revealed that the hierarchical model had a superior fit to the data over rival models measuring constructs at lower orders. The results also reveal that value mediates the relationship between social support and brand equity for social behavior.

Originality/value
This is the first study to hierarchically test a model for transformative gamification services. Furthermore, it begins to shed light on the antecedents of value created within transformative gamification services, which to date have not been thoroughly explored. Finally, the study demonstrates brand equity is applicable beyond commercial campaigns and services and can be used to measure social (well-being) behaviors.
A multi-stakeholders view of the barriers of social sustainability in healthcare supply chains
Authors: Hussain Matloub , Khan Mehmood , Ajmal Mian , Sheikh Karim Sajjad , Ahamat Amiruddin 
Published: May 2019

PurposeThe purpose of this paper is to develop a framework for the identification, categorization and prioritization of social sustainability barriers in health-care supply chains.Design/methodology/approachAn exploratory survey tool is used to identify barriers that are relevant to a health-care supply chain. The identified barriers are grouped into five main categories and experts’ opinions were applied to validate the content. Finally, an analytical hierarchical process (AHP) is used to prioritize the main categories and sub-categories of the barriers.FindingsThe exploratory phase identified 34 barriers that are relevant to a health-care supply chain. These barriers were grouped into the following categories: poor infrastructure, organizational culture, poor coordination, stakeholder disparity, and uncertainty. Organizational culture and poor coordination were assigned the highest priority through the AHP. Overall, lack of management support, lack of commitment and lack of coordination were found to be the top relevant barriers to a health-care supply chain.Research limitations/implicationsThis study only explored and prioritized the barriers of social sustainability. Future research should explore the impact of the identified barriers on the overall performance of the hospital supply chain.Practical implicationsThe findings of this study may be of value to the local health-care industry in achieving their objectives by overcoming social sustainability barriers, which would in turn facilitate the implementation of social sustainability programs that can positively contribute to the overall supply chain performance.Social implicationsSocial sustainability has grown in importance as a pressurizing issue to push supply chain managers to assess their social impacts on the communities. This is especially important in service supply chains such as health care, where human element is a part of every stage.Originality/valueDespite practitioners’ and academics’ growing emphasis on the social dimension of sustainability, the categorization and prioritization of social sustainability practices across health-care supply chains and general service care supply chains have not been addressed. This study aims to cover this gap by contributing to both the academic literature and the practical health-care environment.
Progress towards sustainable urban water management in Ghana
Authors: Egan Matthew , Agyemang Gloria 
Published: May 2019

PurposeIn recent decades, governments in developing countries have experienced relentless pressure from key supranational finance providers (particularly the World Bank) to focus on the achievement of financial efficiency. This pressure persists despite evidence that basic institutions necessary for sustainable infrastructure and competitive commercial arrangements are often not present. This paper aims to examine the steering of urban water management in Ghana as it progressed through a first failed public-private partnership in this sector (from 2005 to 2011), and beyond to 2017. Throughout this 12-year period, the authors consider progress and barriers to the achievement of steering for sustainable development.Design/methodology/approachPublicly available documentation is examined through the lens of steering for sustainable development (Voßet al., 2007) to consider the challenges of urban water management between 2005 and 2017.FindingsProgress towards a more sustainable approach to urban water management was achieved through greater democratic governance, public accountability and public engagement. This acted as a counter foil to power and affected improvements of knowledge and clarity of related goals. Effective sustainable management continued to be challenged, however, by on-going World Bank pressure to focus on financial efficiency.Practical implicationsThe provision of a sustainable water supply continues to be a significant challenge for many developing countries, including Ghana. This study provides insights into how progress beyond crippling financial dependency might begin to be achieved.Social implicationsSafe and sustainable water supply is critical for both the health and economic progress of citizens in developing countries such as Ghana. This study provides insight into the value of drawing from a broad range of stakeholders in seeking viable pathways towards those goals.Originality/valueWhile water management challenges for developing countries have been significantly researched, particularly in the context of private financing arrangements, little empirical insight is provided into how governments can move forward with sustainable progress beyond the failure of such arrangements. Water management in Ghana beyond 2011 provides that unique context.
Numerical and experimental study of the combustion phenomenon when the compression ignition is fuelled with mineral diesel
Authors: Venkatesan Hariram , J. Godwin John , Sivamani Seralathan , T. Micha Premkumar 
Published: May 2019

Purpose
The purpose this experimentation is to study the combustion characteristics of compression ignition engine fuelled with mineral diesel. The reason behind the numerical simulation is to validate the experimental results of the combustion characteristics.

Design/methodology/approach
The numerical analysis was carried out in this study using MATLAB Simulink, and the zero dimensional combustion model was applied to predict the combustion parameters such as in cylinder pressure, pressure rise rate and rate of heat release.

Findings
Incorporating the dynamic combustion duration with respect to variable engine load in the zero dimensional combustion model using MATLAB Simulink reduced the variation of experimental and numerical outputs between 5.5 and 6 per cent in this analysis.

Research limitations/implications
Validation of the experimental analysis is very limited. Investigations were performed using zero dimensional combustion model, which is the very appropriate for analysing the combustion characteristics.

Originality/value
Existing studies assumed that the combustion duration period as invariant in their numerical analysis, but with the real time scenario occurring in CI engine, that is not the case. In this analysis, mass fraction burnt considering the dynamic combustion duration was incorporated in the heat transfer model to reduce the error variation between experimental and numerical studies.
Effect of Shale Reservoir Characteristics on Shale Oil Movability in the Lower Third Member of the Shahejie Formation, Zhanhua Sag
Authors: NING Chuanxiang , MA Zhongliang , JIANG Zhenxue , SU Siyuan , LI Tingwei , ZHENG Lunju , WANG Guozhen , LI Fengxun 
Published: May 2019

AbstractTo reveal the effect of shale reservoir characteristics on the movability of shale oil and its action mechanism in the lower third member of the Shahejie Formation (Es3l), samples with different features were selected and analyzed using N2 adsorption, high‐pressure mercury injection capillary pressure (MICP), nuclear magnetic resonance (NMR), high‐speed centrifugation, and displacement image techniques. The results show that shale pore structure characteristics control shale oil movability directly. Movable oil saturation has a positive relationship with pore volume for radius > 2 μm, as larger pores often have higher movable oil saturation, indicating that movable oil is present in relatively larger pores. The main reasons for this are as follows. The relatively smaller pores often have oil‐wetting properties because of organic matter, which has an unfavorable effect on the flow of oil, while the relatively larger pores are often wetted by water, which is helpful to shale oil movability. The rich surface provided by the relatively smaller pores is beneficial to the adsorption of immovable oil. Meanwhile, the relatively larger pores create significant pore volume for movable oil. Moreover, the larger pores often have good pore connectivity. Pores and fractures are interconnected to form a complex fracture network, which provides a good permeability channel for shale oil flow. The smaller pores are mostly distributed separately; thus, they are not conducive to the flow of shale oil. The mineral composition and fabric macroscopically affect the movability of shale oil. Calcite plays an active role in shale oil movability by increasing the brittleness of shale and is more likely to form micro‐cracks under the same stress background. Clay does not utilize shale oil flow because of its large specific surface area and its block effect. The bedding structure increases the large‐scale storage space and improves the connectivity of pores at different scales, which is conducive to the movability of shale oil.
Pore Size Distribution of a Tight Sandstone Reservoir and its Effect on Micro Pore‐throat Structure: A Case Study of the Chang 7 Member of the Xin'anbian Block, Ordos Basin, China
Authors: LI Peng , JIA Chengzao , JIN Zhijun , LIU Quanyou , BI He , ZHENG Min , WU Songtao , HUANG Zhenkai 
Published: May 2019

AbstractPore distribution and micro pore‐throat structure characteristics are significant for tight oil reservoir evaluation, but their relationship remains unclear. This paper selects the tight sandstone reservoir of the Chang 7 member of the Xin'anbian Block in the Ordos Basin as the research object and analyzes the pore size distribution and micro pore‐throat structure using field emission scanning electron microscopy (FE‐SEM), high‐pressure mercury injection (HPMI), high‐pressure mercury injection, and nuclear magnetic resonance (NMR) analyses. The study finds that: (1) Based on the pore size distribution, the tight sandstone reservoir is characterized by three main patterns with different peak amplitudes. The former peak corresponds to the nanopore scale, and the latter peak corresponds to the micropore scale. Then, the tight sandstone reservoir is categorized into three types: type 1 reservoir contains more nanopores with a nanopore‐to‐micropore volume ratio of 82:18; type 2 reservoir has a nanopore‐to‐micropore volume ratio of 47:53; and type 3 reservoir contains more micropores with a nanopore‐to‐micropore volume ratio of 35:65. (2) Affected by the pore size distribution, the throat radius distributions of different reservoir types are notably offset. The type 1 reservoir throat radius distribution curve is weakly unimodal, with a relatively dispersed distribution and peak ranging from 0.01 μm to 0.025 μm. The type 2 reservoir's throat radius distribution curve is single‐peaked with a wide distribution range and peak from 0.1 μm to 0.25 μm. The type 3 reservoir's throat radius distribution curve is single‐peaked with a relatively narrow distribution and peak from 0.1 μm to 0.25 μm. With increasing micropore volume, pore‐throat structure characteristics gradually improve. (3) The correlation between micropore permeability and porosity exceeds that of nanopores, indicating that the development of micropores notably influences the seepage capacity. In the type 1 reservoir, only the mean radius and effective porosity have suitable correlations with the nanopore and micropore porosities. The pore‐throat structure parameters of the type 2 and 3 reservoirs have reasonable correlations with the nanopore and micropore porosities, indicating that the development of these types of reservoirs is affected by the pore size distribution. This study is of great significance for evaluating lacustrine tight sandstone reservoirs in China. The research results can provide guidance for evaluating tight sandstone reservoirs in other regions based on pore size distribution.
Diatom Response to Global Warming in Douhu Lake, Southeast China
Authors: LI Jingjing , WANG Luo , CAO Qi , RIOUAL Patrick , LEI Guoliang , CAI Binggui , ZHANG Jiaoyang , ZOU Yafei , YAN Yao , WAN Xiaoqiao , XIAO Jule 
Published: May 2019

AbstractA large number of lacustrine sedimentary records indicate that global warming is the main factor leading to significant changes in diatom communities in lakes of the northern hemisphere. However, due to the intensification of human activities since 1850, some scholars have emphasized that the increasing lake trophic level may be the main reason for the changes in diatom communities. The debate is ongoing. In order to avoid falling into the complex relationship between diatom changes and the seasonal cycle that characterizes lakes in mid and high latitudes, we chose a lake located at a low latitude, where the relationship between diatoms and temperature is not indirect but direct. The diatom record spans the past ca. 100 years and reveals that the abundance of Aulacoseira granulata increased from 1900 until 1985, replacing the previously dominant Aulacoseira ambigua. These changes are in agreement with the increasing trend in global temperature. Since 1985, the percentages of the small‐celled Discostella stelligera and the benthic diatom Navicula heimansioides have increased, while Aulacoseira granulata has decreased. This latest shift is caused by further global warming. We conclude that warming is the main factor leading to changing diatom communities in Douhu Lake.
Study of Fractal Characteristics of the Cementation Index in Shale Gas
Authors: LIU Hongqi , LIU Shiqiong , LUO Xingping , SUN Yangsha , TIAN Jie , LIANG Lixi , LIU Xiangjun 
Published: May 2019

AbstractThe description of pores and fracture structures is a consistently important issue and certainly a difficult problem, especially for shale or tight rocks. However, the exploitation of so‐called unconventional energy, such as shale methane and tight‐oil, has become more and more dependent on an understanding of the inner structure of these unconventional reservoirs. The inner structure of porous rocks is very difficult to describe quantitatively using normal mathematics, but fractal geometry, which is a powerful mathematical tool for describing irregularly‐shaped objects, can be applied to these rocks. To some degree, the cementation index and tortuosity can be used to describe the complexity of these structures. The cementation index can be acquired through electro‐lithology experiments, but, until now, tortuosity could not be quantitatively depicted. This research used the well‐logging curves of a gas shale formation to reflect the characteristics of the rock formations, and the changes in the curves to indicate the changes of the rock matrix, the pores, the connections among the pores, the permeability, and the fluid type. The curves that are affected most by the rock lithology, such as gamma ray, acoustic logging, and deep resistivity curves, can provide significant information about the micro‐ or nanostructure of the rocks. If the rock structures have fractal characteristics, the logging curves will also have fractal properties. Based on the definition of a fractal dimension and the Hausdorff dimension, this paper presents a new methodology for calculating the fractal dimensions of logging curves. This paper also reveals the deep meaning of the rock cementation index, m, through the Hausdorff dimension, and provides a new equation to calculate this parameter through the resistivity and porosity of the formation. Although it represents a very important relationship between the saturation of hydrocarbons with pores and resistivity, the Archie formula was not available for shale and tight rock. The major reason for this was an incorrect understanding of the cementation index, and the calculation of saturation used a single m value from the bottom to the top of the well. Unfortunately, this processing method is clearly inappropriate for the intensely heterogeneous material that is shale and tight rock. This paper proposes a method of calculating m through well‐logging curves based on a fractal geometry that can change with different lithologies, so that it would have more agreement with in situ scenarios than traditional methods.
Radial Permeability Measurements for Shale Using Variable Pressure Gradients
Authors: FAN Kunkun , SUN Renyuan , ELSWORTH Derek , DONG Mingzhe , LI Yajun , YIN Congbin , LI Yanchao , CHEN Zhongwei , WANG Chunguang 
Published: May 2019

AbstractShale gas is becoming an important component of the global energy supply, with permeability a critical controlling factor for long‐term gas production. Obvious deviation may exist between helium permeability determined using small pressure gradient (SPG) methods and methane permeability obtained under actual field production with variable pressure gradients (VPG). In order to more accurately evaluate the matrix permeability of shale, a VPG method using real gas (rather than He) is established to render permeability measurements that are more representative of reservoir conditions and hence response. Dynamic methane production experiments were performed to measure permeability using the annular space in the shale cores. For each production stage, boundary pressure is maintained at a constant and the gas production with time is measured on the basis of volume change history in the measuring pump. A mathematical model explicitly accommodating gas desorption uses pseudo‐pressure and pseudo‐time to accommodate the effects of variations in pressure‐dependent PVT parameters. Analytical and semi‐analytical solutions to the model are obtained and discussed. These provide a convenient approach to estimate radial permeability in the core by nonlinear fitting to match the semi‐analytical solution with the recorded gas production data. Results indicate that the radial permeability of the shale determined using methane is in the range of 1×10−6 – 1×10−5 mD and decreases with a decrease in average pore pressure. This is contrary to the observed change in permeability estimated using helium. Bedding geometry has a significant influence on shale permeability with permeability in parallel bedding orientation larger than that in perpendicular bedding orientation. The superiority of the VPG method is confirmed by comparing permeability test results obtained from both VPG and SPG methods. Although several assumptions are used, the results obtained from the VPG method with reservoir gas are much closer to reality and may be directly used for actual gas production evaluation and prediction, through accommodating realistic pressure dependent impacts.
Minimally invasive rehabilitation of the worn dentition: a case report utilising adhesive additive techniques and digital technologies
Authors: Mak A , Chio A 
Published: May 2019

AbstractThe management of the worn dentition presents an increasing challenge that is encountered more frequently in daily dental practice. The consequences of tooth wear tend to be multifactorial and while they may initially only involve the loss of surface enamel it can progressively lead to significant destruction of the dentition. This paper discusses the management of a tooth wear case where a significant amount of tooth structure has been lost from both the anterior and posterior teeth. Protocols for assessment, treatment planning and restorative management of the tooth wear case are presented demonstrating the use of adhesive additive techniques and digital technologies to achieve functional and aesthetic rehabilitation of the dentition.
Diverse clinical and histopathologic features of cutaneous post‐transplant lymphoproliferative disorders: A presentation of two cases
Authors: Roberts Sammie J , McNally Brandon , Rosser Julie A , Willard Nicholas , Golitz Loren , Wisell Joshua 
Published: May 2019

AbstractHeterogeneous lymphoproliferative disorders occurring in the post‐transplant setting are considered together as post‐transplant lymphoproliferative disorders and can rarely present as primary cutaneous lesions. These disorders are often Epstein–Barr virus‐driven and in some cases need only be treated with reduction in immune suppressive medications. We present two cases of monomorphic post‐transplant lymphoproliferative disorder, a plasmablastic lymphoma and a diffuse large B‐cell lymphoma, and summarise common reported clinical and histopathological features.