bluuebunny/crossref_metadata_2025_split huggingface dataset:
Optimizing time, cost and quality in multi-mode resource-constrained project scheduling
Authors: Kannimuthu Marimuthu , Raphael Benny , Palaneeswaran Ekambaram , Kuppuswamy Ananthanarayanan 
Published: January 2019

Purpose
The purpose of this paper is to develop a framework to optimize time, cost and quality in a multi-mode resource-constrained project scheduling environment.

Design/methodology/approach
A case study approach identified the activity execution modes in building construction projects in India to support multi-mode resource-constrained project scheduling. The data required to compute time, cost and quality of each activity are compiled from real construction projects. A binary integer-programming model has been developed to perform multi-objective optimization and identify Pareto optimal solutions. The RR-PARETO3 algorithm was used to identify the best compromise trade-off solutions. The effectiveness of the proposed framework is demonstrated through sample case study projects.

Findings
Results show that good compromise solutions are obtained through multi-objective optimization of time, cost and quality.

Research limitations/implications
Case study data sets were collected only from eight building construction projects in India.

Practical implications
It is feasible to adopt multi-objective optimization in practical construction projects using time, cost and quality as the objectives; Pareto surfaces help to quantify relationships among time, cost and quality. It is shown that cost can be reduced by increasing the duration, and quality can be improved only by increasing the cost.

Originality/value
The use of different activity execution modes compiled from multiple projects in optimization is illustrated, and good compromise solutions for the multi-mode resource-constrained project scheduling problems using multi-objective optimization are identified.
Matching for navigation map building for automated guided robot based on laser navigation without a reflector
Authors: Zhang Ke , Gui Hao , Luo Zhifeng , Li Danyang 
Published: January 2019

Purpose
Laser navigation without a reflector does not require setup of reflector markers at the scene and thus has the advantages of free path setting and flexible change. This technology has attracted wide attention in recent years and shows great potential in the field of automatic logistics, including map building and locating in real-time according to the environment. This paper aims to focus on the application of feature matching for map building.

Design/methodology/approach
First, an improved linear binary relation algorithm was proposed to calculate the local similarity of the feature line segments, and the matching degree matrix of feature line segments between two adjacent maps was established. Further, rough matching for the two maps was performed, and both the initial rotation matrix and the translation vector for the adjacent map matching were obtained. Then, to improve the rotation matrix, a region search optimization algorithm was proposed, which took the initial rotation matrix as the starting point and searched gradually along a lower error-of-objective function until the error sequence was nonmonotonic. Finally, the random-walk method was proposed to optimize the translation vector by iterating until the error-objective function reached the minimum.

Findings
The experimental results show that the final matching error was controlled within 10 mm after both rotation and translation optimization. Also, the algorithm of map matching and optimization proposed in this paper can realize accurately the feature matching of a laser navigation map and basically meet the real-time navigation and positioning requirements for an automated-guided robot.

Originality/value
A linear binary relation algorithm was proposed, and the local similarity between line segments is calculated on the basis of the binary relation. The hill-climbing region search algorithm and the random-walk algorithm were proposed to optimize the rotation matrix and the translation vector, respectively. This algorithm has been applied to industrial production.
A system dynamics model to forecast the population aging in Iran
Authors: Vahidi Monfared Hossein , Moini Alireza 
Published: January 2019

Purpose
The last reformation in Iran’s population policy was announced inside “General Population Policy” (GPP) in 2013. One of the main objectives of the GPP is controlling population aging. The aim was to designing and evaluating different scenarios for achieving this objective.

Design/methodology/approach
For this purpose, a system dynamics model was built from cohort age groups. The model simulated Iran’s population structure from 2000 to 2050. The system dynamics model was validated in 2000 till 2011 period (R2 = 94%). Data were extracted from the United Nations population division repository and represent a reducing trend in the fertility rate of Iran. This situation was named the “base” scenario. The simulation results for this scenario showed that Iran will face aging such that between 2000 and 2050 the median age will increase from 25 to 43 years. Based on these results, the base scenario could not achieve the GPP objective. So three alternative scenarios were designated: stabilization, increasing and hyper increasing.

Findings
The median age and the aging index are descending only in the hyper increasing scenario which means controlling aging. Therefore, the hyper increasing scenario is the only way to realize the GPP’s objective. To realize the hyper increasing scenario, it is essential to consider the total dependency ratio which shows the level of pressure on the workforce. Reducing this pressure increases the propensity to have more children (fertility index) and this is essential for maintaining high fertility rate.

Originality/value
The value of the research rests on a precise simulation model to forecast the population structure and aging. The research will serve as a guide for Iranian policymaker and support strong recommendations to bring the GPP along with supporting policies such as childbearing and child care assistance.
Impact of carbon permit allocation rules on incentive contracts for carbon emission reduction
Authors: Li Qinqin , Xiao Yujie , Qiu Yuzhuo , Xu Xiaoling , Chai Caichun 
Published: January 2019

Purpose
The purpose of this paper is to examine the impact of carbon permit allocation rules (grandfathering mechanism and benchmarking mechanism) on incentive contracts provided by the retailer to encourage the manufacturer to invest more in reducing carbon emissions.

Design/methodology/approach
The authors consider a two-echelon supply chain in which the retailer offers three contracts (wholesale price contract, cost-sharing contract and revenue-sharing contract) to the manufacturer. Based on the two carbon permit allocation rules, i.e. grandfathering mechanism and benchmarking mechanism, six scenarios are examined. The optimal price and carbon emission reduction decisions and members’ equilibrium profits under six scenarios are analyzed and compared.

Findings
The results suggest that the revenue-sharing contract can more effectively stimulate the manufacturer to reduce carbon emissions compared to the cost-sharing contract. The cost-sharing contract can help to achieve the highest environmental performance, whereas the implementation of revenue-sharing contract can attain the highest social welfare. The benchmarking mechanism is more effective for the government to prompt the manufacturer to produce low-carbon products than the grandfathering mechanism. Although a loose carbon policy can expand the total emissions, it can improve the social welfare.

Practical implications
These results can provide operational insights for the retailer in how to use incentive contract to encourage the manufacturer to curb carbon emissions and offer managerial insights for the government to make policy decisions on carbon permit allocation rules.

Originality/value
This paper contributes to the literature regarding to firm’s carbon emissions reduction decisions under cap-and-trade policy and highlights the importance of carbon permit allocation methods in curbing carbon emissions.
Effective approach of microprocessor throughput enhancement
Authors: Samake Adama , Kocanda Piotr , Kos Andrzej 
Published: January 2019

Purpose
This paper aims to present an effective approach to integrated circuit (IC) throughput enhancement, called TΔT thermal control. It does not require any micro-architectural change of the IC. The only modification is the attachment of an additional temperature sensor at the heatsink boundary. TΔT control technique enables assessment of changes in the dimension of cooling conditions and quick reaction to the dynamic changes in the surrounding environment. As a result, the chip can operate flexibly while minimizing thermal violation.

Design/methodology/approach
Using additional knowledge about the surroundings, the on-chip temperature is regulated. The approach is first investigated theoretically. To validate the utilized thermal model, the measured temperature values of the designed and fabricated testing device are compared with the simulated one. The authors evaluated the impact of the additional sensor location on the reaction time (RT). Using the Spice model, further investigation helps to verify the hypothesis.

Findings
The control technique described in this paper showed that the temperature of the chip can be regulated using an additional knowledge of the surrounding environment. It has also been demonstrated that the attachment of an additional temperature sensor close to the cooled surface of the package enables TΔT thermal control technique to react faster (rapid powering up/down of the IC). Therefore, this lowers the risk of shutdown while keeping the temperature close to the thermal limit (the maximal temperature of the chip) for a significant period. The simulation results showed that a higher ambient temperature leads to diminution of the interval in which the on-chip temperature stays almost constant when TΔT technique is used (time shift).

Originality/value
In this study, a new thermal throttling technique that uses the full physical ability of the chip operating under thermal constraint has been evaluated.
Lady first? The gender difference in the influence of service quality on online consumer behavior
Authors: Wang Weihua , Kim Saebum 
Published: January 2019

Purpose
This paper aims to articulate the gender differences in the influence of service quality on online consumer behavior.

Design/methodology/approach
Through data collected via a Web-based questionnaire survey from 330 consumers in China, this study builds and analyzes a structural equation model, using five dimensions of E-service quality, customer satisfaction and customer loyalty, and focuses on the moderation test of gender.

Findings
This study finds that first, efficiency dimension of e-service quality is of same importance for male and female customers; second, there are significant gender differences in the responsiveness and reliability dimensions of E-service quality, which affect customer satisfaction; third, the impact of female customer satisfaction on customer loyalty is stronger than for male customers.

Practical implications
Online retailers with limited service resources should preferentially respond to service requests from male customers and provide more reliable services for female consumers under the same condition.

Originality/value
The research validated the applicability of self-regulation theory in online consumer behavior, explored the occurrence stage and characteristics of gender differences in online consumer behavior under influence of SRT and first found some apparent gender differences in the influence of different dimensions of e-service quality on online consumer behavior.
Butyrylcholinesterase deficiency and its clinical importance in anaesthesia: a systematic review
Authors: Andersson M. L. , Møller A. M. , Wildgaard K. 
Published: January 2019

SummaryButyrylcholinesterase deficiency prolongs the effects of the drugs it degrades; succinylcholine and mivacurium. Existing literature on butyrylcholinesterase deficiency is dominated by genetic and biochemical studies. We searched MEDLINE, Embase, Web of Science and Biosis to systematically review the causes and clinical consequences of butyrylcholinesterase deficiency. We considered outcomes clinically relevant if neuromuscular blockade, induced by succinylcholine or mivacurium, was assessed using clinical criteria or neuromuscular monitoring. We included 66 studies: 25 randomised controlled trials; 13 clinically controlled trials; 26 prospective observational studies; 1 retrospective study; and 1 qualitative study. Data heterogeneity precluded quantitative synthesis. Studies described genetic, physiological, acquired or pharmacologically induced causes of butyrylcholinesterase deficiency. The prolongation of neuromuscular blockade by butyrylcholinesterase deficiency was most pronounced with homozygosity of a genetic variant, but other more common factors included increasing age, pregnancy, severe liver disease, burn injuries and drug interactions.
Systematic review with meta‐analysis: non‐alcoholic fatty liver disease is associated with a history of osteoporotic fractures but not with low bone mineral density
Authors: Mantovani Alessandro , Dauriz Marco , Gatti Davide , Viapiana Ombretta , Zoppini Giacomo , Lippi Giuseppe , Byrne Christopher D. , Bonnet Fabrice , Bonora Enzo , Targher Giovanni 
Published: January 2019

SummaryBackgroundSeveral studies have explored the effect of non‐alcoholic fatty liver disease (NAFLD) on bone mineral density (BMD) and risk of osteoporotic fractures in adults. However, the extent to which NAFLD adversely affects bone health remains uncertain.AimTo provide a quantitative estimation of the magnitude of the association of NAFLD with BMD or history of osteoporotic fractures in adults.MethodsWe searched PubMed, Web of Science, and Scopus using predefined keywords to identify all observational studies, published up to 31 August 2018, in which NAFLD was diagnosed by imaging or histology; BMD was measured by dual energy X‐ray absorptiometry; and a self‐reported history of osteoporotic fractures was collected with interviewer‐assisted questionnaires. Data from selected studies were extracted, and meta‐analysis was performed using random‐effects modelling.ResultsTwelve cross‐sectional or case‐control studies with aggregate data on 30 041 adults of predominantly Asian ethnicity (30% with NAFLD) were included in the final analysis. No significant differences in BMD at different skeletal sites (whole body, lumbar spine, or femur) were observed between individuals with and without NAFLD. Conversely, NAFLD was associated with increased odds of osteoporotic fractures, especially in older Chinese men (n = 2 studies; random‐effects odds ratio 2.10, 95% CI 1.36‐3.25; I2 = 0%). Sensitivity analyses did not alter these findings. The funnel plot and Egger test did not reveal significant publication bias.ConclusionsThis meta‐analysis suggests that imaging‐defined or biopsy‐proven NAFLD is associated with a self‐reported history of osteoporotic fractures (principally in Chinese men), but not with low BMD, in middle‐aged and elderly individuals.
Genetic uniformity characterizes the invasive spread of Neofusicoccum parvum and Diplodia sapinea in the Western Balkans
Authors: Zlatković Milica , Wingfield Michael J. , Jami Fahimeh , Slippers Bernard 
Published: January 2019

AbstractIn the past decade, trees and shrubs in the Western Balkans region have been damaged by canker and die‐back disease caused by Botryosphaeriaceae species. These pathogens include Neofusicoccum parvum and Diplodia sapinea. In this study, we determine genetic diversity and structure between populations of N. parvum and D. sapinea from Serbia and Montenegro (Western Balkans) using DNA sequence data of the internal transcribed spacer rDNA, translation elongation factor 1‐alpha, β‐tubulin‐2 and microsatellite markers. The relationship of both pathogens was compared for populations from the Continental (CR) and Mediterranean (MR) regions and for isolates of D. sapinea from Cedrus spp. and Pinus spp. Neofusicoccum parvum and D. sapinea were shown to have a low gene and genotypic diversity across the regions and hosts. All genotypes of D. sapinea found on Pinus spp. were also present on Cedrus spp. The CR and MR populations of both species were found to be only slightly separated from one another by a geographical barrier. Low genetic diversity and dominance of N. parvum and D. sapinea on non‐native trees suggests that these species have most likely been introduced into Western Balkans, possibly through the movement of infected plants.
Modelling the residual strength of fatigue damage at a single semicircular edge notch: Semielliptical crack and through‐the‐thickness crack
Authors: Boljanović Slobodanka , Carpinteri Andrea 
Published: January 2019

AbstractIn the present paper, computational framework for fatigue performance analysis of a semicircular edge notch with a through‐the‐thickness crack or a semielliptical crack is discussed. The failure behaviour of such configurations is theoretically examined through the stress‐intensity analysis and residual life estimation. The stress field of a damaged notch configuration is herein investigated by employing analytical and numerical approaches. Further, a fracture mechanics–based methodology, developed for fatigue life assessment, is taking into account the crack growth model proposed by Huang and Moan in which the stress ratio is involved. The efficiency of the obtained fatigue damage assessments, related to the edge notch configurations, is verified through appropriate experimental observations.
Are Hope and Possibility Achievable in Prison?
Authors: LIEBLING ALISON , LAWS BEN , LIEBER ELINOR , AUTY KATHERINE , SCHMIDT BETHANY E. , CREWE BEN , GARDOM JUDITH , KANT DEBORAH , MOREY MARTHA 
Published: January 2019

AbstractThere is both hope and frustration in this article. A recent research exercise in a prison found it to be inspirational in its ethos, relationships and mission. Prisoners talked passionately about their experiences in it and its impact on their personal development. But prisoners received very little resettlement support and things sometimes went wrong as soon as they were released, not because of any ‘moral failings’ on their part, but because they could not even navigate the journey ‘home’. It looked like everything we know cumulatively about ‘better prisons’, but its prisoners were failed as they transitioned out. More ‘tragic imagination’ is required in penal policy.
The role of internal migration in accessing a first job: A case study of Uganda
Authors: BOUTIN Delphine 
Published: January 2019

AbstractDoes experiencing internal migration hasten access to the labour market? This article studies the gap in length of transition to a first job between internal migrant and non‐migrant youth in Uganda. According to the specific context of this developing country, three transition starting points are considered: date of birth, minimum legal working age and school exit. Extended Cox proportional hazard models suggest that migrants experience shorter transitions. However, when excluding child labourers or measuring school‐to‐work transitions, significant gaps disappear. Decomposition of transition length gaps reveals the importance of observable and unobservable factors related in particular to area of origin, gender and access to education.
Evaluating the effectiveness of labour provisions in trade agreements: An analytical and methodological framework
Authors: AISSI Jonas , PEELS Rafael , SAMAAN Daniel 
Published: January 2019

AbstractThis article puts forward an analytical and methodological framework for examining the effectiveness of labour provisions in trade agreements, illustrated by indicative case studies. Developing the notion of capacity at three levels (state, civil society and firms), the authors differentiate between proximate outcomes (legal, institutional and political) and distant, socio‐economic outcomes (improving labour rights and working conditions). They thus consider labour provisions in trade agreements as a multifaceted “policy mix” to be evaluated through qualitative and/or quantitative methods, depending on the aspect of capacity that is of interest, and on the available data. Some policy recommendations are also provided.
Is the Education of Local Children Influenced by Living near a Refugee Camp? Evidence from Host Communities in Rwanda
Authors: Bilgili Özge , Loschmann Craig , Fransen Sonja , Siegel Melissa 
Published: January 2019

AbstractThis article studies the extent to which educational services and schooling outcomes of local children are influenced by the presence of a refugee camp in or near their community. Investigating Congolese refugees in Rwanda and relying on a mixed‐method approach, we examine schooling rates and access to school‐based feeding programmes in communities closer to and further away from three refugee camps. We conduct cohort analyses to compare the schooling outcomes of Rwandans residing at different distances from each of these camps. Our results highlight that children residing closer to the camps have better schooling outcomes and that locals residing closer to the camps have mostly positive views regarding the effects of refugees on local education. These results contribute to the literature on the effects of refugees on host communities and inform policy debates on how refugees need not be a “burden” if a long‐term vision shapes educational investments.
Talking across Borders: Successful Re‐entry in Different Strands of Re‐entry Literature
Authors: Lietaert Ine , Gorp Lore Van 
Published: January 2019

AbstractThe processes of re‐entering a society after an international move have been studied in several fields. In this article, we argue that the existing differences in conceptualizations of a “successful re‐entry” for different returning groups are created by particular social, political or theoretical ideas about mobility, which lead to biases in the understanding of re‐entry processes and influence support practices for returning groups. A critical analysis of the conceptualization of successful re‐entry of two extreme cases of returning people who both play to the interests of institutions that seek successful re‐entry, namely returned refugees and asylum seekers on the one hand and repatriates on the other, enables us to bring these assumptions to the fore. Our analysis reveals how the permeation of economic and spatial understanding and the absence of temporal and relational understanding distorts insights into re‐entry processes and creates blind spots in support practices for returning populations.