bluuebunny/crossref_metadata_2025_split huggingface dataset:
Co-movements and diversification opportunities among Dow Jones Islamic indexes
Authors: Antar Monia , Alahouel Fatma 
Published: December 2019

Purpose
This paper aims to analyse the opportunity of an exclusive investment in the DJ Islamic indexes. The objective is to characterize the links between MENA region index with seven DJ Islamic indexes.

Design/methodology/approach
A co-movement analysis was conducted to assess whether there is a safe investment during crisis. The VECM verifies the existence of a long run association. The MGARCH-DCC characterizes the dynamic links. The wavelet coherence detects a correlation in a time-frequency domain, which is relevant to set up a diversification strategy based on investment horizons.

Findings
Despite the existence of a long run association between the Islamic indexes, diversification opportunities are present. The MGARCH-DCC results recommend including the USA, Canada and Emerging Markets indexes with the Mena index to get diversification benefits. The Wavelet coherence confirms these results for 0 to 16 days holding period and more than six-months’ investment horizons. Hence, MENA portfolio managers should not invest in Europe, UK and Emerging Markets indexes.

Research limitations/implications
This study focused only on the bivariate correlation analysis without taking into consideration multivariate relationships. Future research should use multiple wavelet coherence and explore S&P Shariah indexes.

Practical implications
This work is important for investors searching for assets governed by sharia rules, who reject resorting to conventional markets, and policy makers dealing with coordination costs. They would be able to formulate strategies based on the different indexes’ relationships.

Originality/value
This paper enriches the limited stream of literature focusing only on Islamic indexes. Due to the important development of Islamic Finance in each MENA country, the authors shed the light on this Region’s index.
SMEs project: a method to encourage interpersonal skills among pre-service accountant
Authors: Sagala Gaffar Hafiz , Effiyanti Tri 
Published: December 2019

Purpose
Accounting Education Change Commission reveals that accounting professionals are required to have interpersonal skills. For this reason, higher education requires the dynamics of learning that can foster critical thinking skills, analysis, communication, negotiation, cooperation and argumentation. Therefore, studies in the field of accounting education have led to a project approach to provide students with complex learning experiences to develop various supporting skills in addition to learning outcomes. Interestingly, the methods have its own dilemma with social loafing in groups. Therefore, a lecturer must be able to match it with an appropriate evaluation instrument. The purpose of this paper is to examine the effect of implementing peer evaluations and project-based learning (SMEs project) on improving the interpersonal skills of accounting students.

Design/methodology/approach
The population of this research is Accounting students at Medan State University, while the sample is students who are undergoing Cost Accounting courses taken with purposive sampling. The within-sample of field experiment method was conducted in the current study. Furthermore, data analysis was performed using one-way ANOVA analysis assisted by SPSS 19.

Findings
The results of this study showed that students had an increase in interpersonal skills in their board, and peer-evaluation design resulted in learning satisfaction and fairness in students.

Originality/value
The results of this study produce practical recommendations for lecturers to innovate their learning activities with actual project design and control group dynamics with accommodative evaluation designs. This study provides new insights in building a comprehensive instructional design, so it can strengthen the concept of instructional and evaluation designs which are integral parts that should match between one another.
Space tourism-past to future : a perspective article
Authors: Cohen Erik , Spector Samuel 
Published: December 2019

PurposeThis paper aims to briefly review the history and future expectations for space tourism.Design/methodology/approachHistorical review.FindingsAfter a series of successes in space travel, culminating by the Apollo 11 Moon landings in 1969, governmental efforts at space travel stalled. In the early twenty-first century, private entrepreneurs inspired new life into space travel and tourism, offering commercial suborbital trips, but none have as yet actually taken place. However, despite impediments, a significant expansion of space travel and tourism is expected to occur in the course of the twenty-first century.Originality/valueThe paper offers a synoptic view of past and projected future developments in space travel and tourism.
Tourism entrepreneurship research: a perspective article
Authors: Ratten Vanessa 
Published: December 2019

Purpose
Tourism entrepreneurship is an emerging area of study that has both practical and theoretical importance. This paper aims to review past research on tourism entrepreneurship with the view of highlighting neglected areas of study.

Design/methodology/approach
A review of the past 75 years is conducted that highlights the gaps in the research in need of further research.

Findings
There is a focus on lifestyle and sustainable forms of tourism entrepreneurship without taking into account emerging technologies and other forms of entrepreneurship such as digital and societal.

Originality/value
This paper places emphasis on the transdisciplinary nature of tourism entrepreneurship that enables researchers to build on multiple disciplines to derive fruitful new areas of research interest.
Measuring tourism success – alternative outcome variables: a perspective article
Authors: Uysal Muzaffer 
Published: December 2019

Purpose
The focus of this perspective paper is to provide new directions in the ontology of thinking about outcome variables by observational analysis of past and linking it to the present research.

Design/methodology/approach
This perspective paper follow a critical review approach that is reflective and speculative in its orientation.

Findings
Outcome variables are assumed to serve as the dependent variables which are observed and measured by changing independent variables. It is argued that there would certainly be more and innovative concerted efforts in the future that would focus on non-conventional measures as outcome variables. These efforts would help researchers better understand the contribution of tourism activities to well-being of stakeholders. By doing so, success in tourism can be ensured.

Originality/value
Proposing, in addition to conventional outcome variables, new/possible outcome variables to enrich research.
The effectiveness of a pseudo‐inverse extended Born operator to handle lateral heterogeneity for imaging and velocity analysis applications
Authors: Alali Abdullah , Sun Bingbing , Alkhalifah Tariq 
Published: December 2019

ABSTRACTWave equation–based migration velocity analysis techniques aim to construct a kinematically accurate velocity model for imaging or as an initial model for full waveform inversion applications. The most popular wave equation–based migration velocity analysis method is differential semblance optimization, where the velocity model is iteratively updated by minimizing the unfocused energy in an extended image volume. However, differential semblance optimization suffers from artefacts, courtesy of the adjoint operator used in imaging, leading to poor convergence. Recent findings show that true amplitude imaging plays a significant role in enhancing the differential semblance optimization's gradient and reducing the artefacts. Here, we focus on a pseudo‐inverse operator to the horizontally extended Born as a true amplitude imaging operator. For laterally inhomogeneous models, the operator required a derivative with respect to a vertical shift. Extending the image vertically to evaluate such a derivative is costly and impractical. The inverse operator can be simplified in laterally homogeneous models. We derive an extension of the approach to apply the full inverse formula and evaluate the derivative efficiently. We simplified the implementation by applying the derivative to the imaging condition and utilize the relationship between the source and receiver wavefields and the vertical shift. Specifically, we verify the effectiveness of the approach using the Marmousi model and show that the term required for the lateral inhomogeneity treatment has a relatively small impact on the results for many cases. We then apply the operator in differential semblance optimization and invert for an accurate macro‐velocity model, which can serve as an initial velocity model for full waveform inversion.
Research Note: A unifying framework for the widely used stabilization of potential field inverse problems
Authors: Vatankhah Saeed , Renaut Rosemary Anne , Liu Shuang 
Published: December 2019

ABSTRACTWe present a brief review of the widely used and well‐known stabilizers in the inversion of potential field data. These include stabilizers that use L2, L1 and L0 norms of the model parameters and the gradients of the model parameters. These stabilizers may all be realized in a common setting using two general forms with different weighting functions. Moreover, we show that this unifying framework encompasses the use of additional stabilizations which are not common for potential field inversion.
Light availability and land‐use history drive biodiversity and functional changes in forest herb layer communities
Authors: Depauw Leen , Perring Michael P. , Landuyt Dries , Maes Sybryn L. , Blondeel Haben , De Lombaerde Emiel , Brūmelis Guntis , Brunet Jörg , Closset‐Kopp Déborah , Czerepko Janusz , Decocq Guillaume , den Ouden Jan , Gawryś Radosław , Härdtle Werner , Hédl Radim , Heinken Thilo , Heinrichs Steffi , Jaroszewicz Bogdan , Kopecký Martin , Liepiņa Ilze , Macek Martin , Máliš František , Schmidt Wolfgang , Smart Simon M. , Ujházy Karol , Wulf Monika , Verheyen Kris 
Published: December 2019

Abstract

A central challenge of today's ecological research is predicting how ecosystems will develop under future global change. Accurate predictions are complicated by (a) simultaneous effects of different drivers, such as climate change, nitrogen deposition and management changes; and (b) legacy effects from previous land use.

We tested whether herb layer biodiversity (i.e. richness, Shannon diversity and evenness) and functional (i.e. herb cover, specific leaf area [SLA] and plant height) responses to environmental change drivers depended on land‐use history. We used resurvey data from 192 plots across nineteen European temperate forest regions, with large spatial variability in environmental change factors. We tested for interactions between land‐use history, distinguishing ancient and recent (i.e. post‐agricultural) forests and four drivers: temperature, nitrogen deposition, and aridity at the regional scale and light dynamics at the plot‐scale.

Land‐use history significantly modulated global change effects on the functional signature of the herb layer (i.e. cover, SLA and plant height). Light availability was the main environmental driver of change interacting with land‐use history. We found greater herb cover and plant height decreases and SLA increases with decreasing light availability in ancient than in recent forests. Furthermore, we found greater decreases in herb cover with increased nitrogen deposition in ancient forests, whereas warming had the strongest decreasing effect on the herb cover in recent forests. Interactive effects between land‐use history and global change on biodiversity were not found, but species evenness increased more in ancient than in recent forests.

Synthesis. Our results demonstrate that land‐use history should not be overlooked when predicting forest herb layer responses to global change. Moreover, we found that herb layer composition in semi‐natural deciduous forests is mainly controlled by local canopy characteristics, regulating light levels at the forest floor, and much less by environmental changes at the regional scale (here: warming, nitrogen deposition and aridity). The observed disconnect between biodiversity and functional herb layer responses to environmental changes demonstrates the importance of assessing both types of responses to increase our understanding of the possible impact of global change on the herb layer.
Unsettling trauma: from individual pathology to social pathology
Authors: Lannamann John W. , McNamee Sheila 
Published: December 2019

Rather than assuming that psychological terms mirror natural categories in the world and that the task of the helping professions is to find ways to discover, diagnose and treat these categories, our goal is to inquire about the status of the categories as an aid to then focusing on therapeutic responses. To that end, we unsettle trauma by exploring its social ontology as a disorder as well as its grammar. Feminist and cultural critiques of PTSD illustrate the limitations of the dominant discourse of trauma, moving trauma from individual pathology to social pathology. We offer two illustrations from the family therapy literature that draw upon polyphony, inner dialogues and the creation of new narratives to expand beyond the pathologising potentials of the discourse of trauma.Practitioner points

Understanding the concept of trauma as a socially embedded construction is a necessary first step towards recognising its different applications in therapeutic work

The dialogic/constructionist stance taken here assumes that meaning and understanding are shaped by discourse and interaction

The taken‐for‐granted meanings associated with trauma need to be questioned

Practitioners may then assess when the use of a PTSD diagnosis might import individualising and objectifying assumptions that undermine the goals of systemic family therapy
Induction, detection, formation, and resuscitation of viable but non‐culturable state microorganisms
Authors: Dong Kai , Pan Hanxu , Yang Dong , Rao Lei , Zhao Liang , Wang Yongtao , Liao Xiaojun 
Published: December 2019

AbstractThe viable but nonculturable (VBNC) state has been recognized as a strategy for bacteria to cope with stressful environments; in this state, bacteria fail to grow on routine culture medium but are actually alive and can resuscitate into a culturable state under favorable conditions. The VBNC state may pose a great threat to food safety and public health. To date, more than 100 VBNC microorganism species have been proven to exist in fields of food safety, environmental application, and agricultural diseases. Most harsh conditions can induce these microorganisms into the VBNC state, including food processing and preservation methods, adverse environmental conditions, and plant‐disease controlling means. The characteristics of VBNC state cells differ from those of normally growing cells and dead cells, based on which of the various detection methods are developed, and they are of great significance for potential risk assessment. To provide molecular level insights into this state, many studies on induction and resuscitation mechanisms have emerged over the past three decades, including research on omics, specific genes, or proteins involved in VBNC state formation and the roles of promoters in resuscitation from the VBNC state. In this review, microorganism species, induction and resuscitation factors, detection methods, and formation and resuscitation mechanisms of the VBNC state are comprehensively and systematically summarized.
Exploring Persistence in Streamflow Forecasting
Authors: Ghimire Ganesh Raj , Krajewski Witold F. 
Published: December 2019

AbstractIn this study, the authors explore three persistence approaches in streamflow forecasting motivated by the need for forecasting model skill evaluation. The authors use streamflow observations with 15 min resolution from the year 2008 to 2017 at 140 United States Geological Survey streamflow gauges monitoring the streams and rivers over the State of Iowa. The spatial scale of the basins ranges from about 7 to 37,000 km2. The study explores three approaches: simple persistence, gradient persistence, and anomaly persistence. The study shows that persistence forecasts skill has strong dependence on basin scales and weaker but non‐negligible dependence on geometric properties of the river network for a given basin. Among the three approaches explored, anomaly persistence shows highest skill especially for small basins, under about 500 km2. The anomaly persistence can serve as a benchmark for model evaluations considering the effect of basin scales and geometric properties of river network of the basin. This study further reiterates that persistence forecasts are hard‐to‐beat methods for larger basin scales at short to medium forecast range.
Measuring Sustainable Development Goals (SDGs): An Inclusive Approach
Authors: Bidarbakhtnia Arman 
Published: December 2019

AbstractFour years on from the adoption of the Sustainable Development Goals (SDGs), countries around the world seek methods that provide simple but comprehensive narratives on their progress. Given the complexity of the agenda and its indicator framework, key questions that arise are what is an appropriate method to summarize information? and how to get everyone counted? This paper provides an overview of various existing methodologies for assessing progress towards the SDGs. It provides guidance on how to choose an appropriate method that is fit for the purpose of analysis. The paper also recommends an approach for measuring SDG progress that accounts for progress among the furthest left behind groups in order to fulfil the leave no‐one behind ambition of the 2030 agenda. Applying the new approach to data from countries in Asia‐Pacific region shows that, when disaggregated statistics are available, the inclusive measurement can significantly change the progress narrative and our understanding of priorities for SDGs implementation.
Troponin Testing and Coronary Syndrome in Geriatric Patients With Nonspecific Complaints: Are We Overtesting?
Authors: Wang Alfred Z. , Schaffer Jason T. , Holt Daniel B. , Morgan Keaton L. , Hunter Benton R. 
Published: December 2019

ABSTRACTBackgroundElderly patients presenting to the emergency department (ED) with nonspecific complaints (NSCs) often undergo troponin testing to assess for atypical acute coronary syndrome (ACS). However, the rate of ACS and utility of troponin testing in this population is unknown. We sought to determine the rate of ACS and diagnostic yield of troponin testing in elderly patients with NSCs.MethodsWe retrospectively identified all patients aged ≥ 65 years triaged in the ED with NSCs from January 1, 2017, to June 30, 2017. NSCs were defined a priori and included complaints such as weakness, dizziness, or fatigue. NSCs were verified in ED provider notes by trained abstractors blind to testing results. Exclusions were focal chief complaint in provider notes, fever, and no troponin ordered. ACS was strictly defined and independently adjudicated by two trained physician researchers blind to the study hypothesis. We calculated the proportion of patients with ACS within 30 days and the test characteristics of troponin to diagnose ACS.ResultsScreening identified 1,146 encounters, and 552 were excluded for fever or focal chief complaints in the provider notes. Of the remaining 594 patients, troponin was ordered in 412 (69%), comprising the study cohort. The mean (±SD) age was 78.7 (±8.3) years, with 58% female and 75% admitted. Troponin elevation occurred in 81 patients (20%). ACS occurred in 5 of 412 (1.2%). Troponin was 100% sensitive (95% confidence interval [CI] = 48% to 100%) and 81% specific (95% CI = 77% to 85%) for ACS. Of patients with elevated troponin, 93.8% were false positives (no ACS). All patients with troponin elevation were admitted, but only one underwent angiography and no patients received reperfusion therapy.ConclusionsWhile consideration for ACS is prudent in selected elderly patients with NSCs, ACS was rare and no patients received reperfusion therapy. Given the false‐positive rate in our study, our results may not support routine troponin testing for ACS in this population.
Effects of Pharmacologically Targeting Neuroimmune Pathways on Alcohol Drinking in Mice Selectively Bred to Drink to Intoxication
Authors: Ozburn Angela R. , Metten Pamela , Potretzke Sheena , Townsley Kayla G. , Blednov Yuri A. , Crabbe John C. 
Published: December 2019

BackgroundRodent models of high alcohol drinking offer opportunities to better understand factors for alcohol use disorders (AUD) and test potential treatments. Selective breeding was carried out to create 2 unique High Drinking in the Dark (HDID‐1, HDID‐2) mouse lines that represent models of genetic risk for binge‐like drinking. A number of studies have indicated that neuroimmune genes are important for regulation of alcohol drinking. We tested whether compounds shown to reduce drinking in other models also reduce alcohol intake in these unique genetic lines.MethodsWe report tests of gabapentin, tesaglitazar, fenofibrate, caffeic acid phenethyl ester (CAPE), ibrutinib, and rolipram. Although these compounds have different mechanisms of action, they have all been shown to reduce inflammatory responses. We evaluated effects of these compounds on alcohol intake. In order to facilitate comparison with previously published findings for some compounds, we employed similar schedules that were previously used for that compound.ResultsGabapentin increased ethanol (EtOH) binge‐like alcohol drinking in female HDID‐1 and HS/NPT mice. Tesaglitazar and fenofibrate did not alter 2‐bottle choice (2BC) drinking in male HDID‐1 or HS/NPT mice. However, tesaglitazar had no effect on DID EtOH intake but reduced blood alcohol levels (BAL), and fenofibrate increased DID intake with no effects on BAL. CAPE had no effect on EtOH intake. Ibrutinib reduced intake in female HDID‐1 in initial testing, but did not reduce intake in a second week of testing. Rolipram reduced DID intake and BALs in male and female HDID‐1, HDID‐2, and HS/NPT mice.ConclusionsA number of compounds shown to reduce EtOH drinking in other models, and genotypes are not effective in HDID mice or their genetically heterogeneous founders, HS/NPT. The most promising compound was the PDE4 inhibitor, rolipram. These results highlight the importance of assessing generalizability when rigorously testing compounds for therapeutic development.