bluuebunny/crossref_metadata_2025_split huggingface dataset:
The antecedents and consequences of online relationship quality in internet purchases
Authors: Kousheshi Mohammad Reza , Aali Samad , Bafandeh Zendeh Ali Reza , Iranzadeh Soleyman 
Published: June 2019

PurposeThe purpose of this paper is to suggest a model for predicting antecedents and consequences of relationship quality in online purchase of physical goods.Design/methodology/approachA total of 462 online buyers in Iran participated in the research by completing questionnaires. The research hypotheses were tested using structural modeling technique.FindingsThe results showed that website quality, online relationship bonds and reputation of seller have positive effect on online relationship quality. The results also showed that online relationship quality has positive effect on electronic word of mouth, online customer share, online customer loyalty and online customer reviews.Research limitations/implicationsIn this research, online relationship quality was considered as a higher-order construct including trust, commitment and satisfaction with the relationship. However, to achieve more accurate results, future researchers can investigate the separate impact of each of the relationship quality dimensions (commitment, trust and satisfaction) on the consequences of online relationship quality.Practical implicationsThis research provides a wide series of antecedents and consequences of online relationship quality for online stores community so that, through being aware of them, internet stores could choose a suitable guideline to sustain their relationship with online customers and, ultimately, obtain customers’ participation in creating value and strengthening their competitive status.Originality/valueThis paper proposes a more comprehensive model of the antecedents and consequences of relationship quality in online purchases for the first time, and it demonstrates which factors strengthen online relationship quality as well as indicates which customer reactions online relationship quality can reinforce and which consequences it can provide for internet shops.
Islamic venture capital investment style – opportunities and challenges
Authors: Anwer Zaheer 
Published: June 2019

PurposeThis study aims to explore how Islamic venture capital (IVC) structure can be established by introducing modifications in traditional venture capital (VC) structure. The motivation stems from the criticism on the existing Islamic finance products, that are said to beShariah-compliant in form but do not fulfil objectives ofShariahwhereas IVC is portrayed by existing literature as an ideal risk sharing based product.Design/methodology/approachThis study uses a questionnaire method to understand IVC philosophy, structure and operational approach and asked the respondents to identify how IVC differs in respect of these traits from conventional VC. The authors collected 50 questionnaires from IVC practitioners, regulators, academicians and Islamic finance (IF) consultants in three countries, namely, Malaysia, Pakistan and Turkey.FindingsIVC can be incorporated by introducing some modifications in traditional VC structure. They need to appoint a full-timeShariahscholar, to ensure compliance toShariahprinciples. IVCs should refrain from dealing in impermissible business activities. They can choose any prevailing method for valuation and investment mode, provided it follows principles ofShariah. IVCs are exposed to unique risks such asShariahnon-compliance risk and equity investment risk and they need additional measures to safeguard against these risks. They can adopt any exit strategy, provided funds are procured from halal sources. Finally, IVC is found to hold the potential to achieve the desired objectives of IF.Originality/valueThis study fills the gap in the existing literature related to IVC investments as no study, to the best of the author’s knowledge, has evaluated the dynamics of IVC by using responses from industry, academia and regulators.
Personal intrinsic religiosity and product knowledge on halal product purchase intention
Authors: Nurhayati Tatiek , Hendar Hendar 
Published: June 2019

PurposeThis paper aims to increase knowledge about awareness and intention to choose the halal products. This study assessed the effect of intrinsic religiosity and knowledge of halal products on the awareness and purchase intention of halal products. This study also investigated and examined the role of halal product awareness (HPA) in mediating the relationship between personal intrinsic religiosity (PIR) and halal product knowledge (HPK) with halal product intention (HPI). This knowledge will be very meaningful because there are still many types of products that are not halal certified circulating in the Muslim market segment.Design/methodology/approachThis study used a self-administered questionnaire with closed questions. As many as 238 Muslim consumers in Indonesia over 17 years old were selected to be tested for regressive relationships from the four constructs. The Sobel test is then used to explain the mediating role of HPA.FindingsThis study shows that there is a relationship between PIR and HPK to HPA and HPI, and HPA to HPI. This study found that HPA was truly a partial mediation in the relationship between PIR and HPK with HPI.Research limitations/implicationsThis study is conducted in the halal food sector in Indonesia and in certain cultural contexts so that the application of the same model in various sectors and countries can get various results. In addition, the respondents of this study were halal food customers; it would be very interesting to obtain data from other stakeholders such as halal food producers or retailers.Originality/valueAs per the authors’ knowledge, this study becomes the first study in Indonesia to examine the mediating role of HPA in the relationship of PIR and HPK with HPI. Conceptual discussion and results of empirical studies extend previous research on consumer behavior in the halal product market segment. An in-depth study of this phenomenon is expected to contribute in the development of science, especially Islamic marketing and customer behavior.
Data-driven failure analysis of emergency shutdown systems in oil and gas industry
Authors: Zhu Pengyu , Liyanage Jayantha , Jeeves Simon 
Published: June 2019

Purpose
Emergency shutdown (ESD) systems play a critical role in ensuring safety and availability of oil and gas production. The systems are operated in on-demand mode, and the detection and prediction of their failures is deemed challenging. The purpose of this paper is to develop a logical data-driven approach to enhance the understanding and detectability of ESD system failures.

Design/methodology/approach
The study was conducted in close collaboration with the Norwegian oil and gas industry. The study and analyses were supported by industrial data, failure data generated in a test facility in Norway and domain experts.

Findings
The paper demonstrated that there is a considerable potential to improve the decision process and to reduce the workload related to ESD systems by means of a logical data-driven approach. The results showed that the failure analysis process can be executed with more clarity and efficiency. Common cause failures could also be identified based on the suggested approach. The study further underlined the requirements regarding relevant data, new competence and technical supports in order to improve the current practice.

Originality/value
The paper leveraged the value of real-time data in identifying failures through mapping of the interrelationships between data, failure mechanisms and decisions. The failure analysis process was re-designed, and the understanding and decision making related to the system was improved as a result. The process developed for ESDs can further be adapted as a common practice for other low-demand systems.
Sex‐specific effects of fisheries and climate on the demography of sexually dimorphic seabirds
Authors: Gianuca Dimas , Votier Stephen C. , Pardo Deborah , Wood Andrew G. , Sherley Richard B. , Ireland Louise , Choquet Remi , Pradel Roger , Townley Stuart , Forcada Jaume , Tuck Geoffrey N. , Phillips Richard A. 
Published: June 2019

Abstract

Many animal taxa exhibit sex‐specific variation in ecological traits, such as foraging and distribution. These differences could result in sex‐specific responses to change, but such demographic effects are poorly understood.

Here, we test for sex‐specific differences in the demography of northern (NGP, Macronectes halli) and southern (SGP, M. giganteus) giant petrels – strongly sexually size‐dimorphic birds that breed sympatrically at South Georgia, South Atlantic Ocean. Both species feed at sea or on carrion on land, but larger males (30% heavier) are more reliant on terrestrial foraging than the more pelagic females. Using multi‐event mark‐recapture models, we examine the impacts of long‐term changes in environmental conditions and commercial fishing on annual adult survival and use two‐sex matrix population models to forecast future trends.

As expected, survival of male NGP was positively affected by carrion availability, but negatively affected by zonal winds. Female survival was positively affected by meridional winds and El Niño–Southern Oscillation (ENSO), and negatively affected by sea ice concentration and pelagic longline effort. Survival of SGPs did not differ between sexes; however, survival of males only was positively correlated with the Southern Annular Mode (SAM).

Two‐sex population projections indicate that future environmental conditions are likely to benefit giant petrels. However, any potential increase in pelagic longline fisheries could reduce female survival and population growth.

Our study reveals that sex‐specific ecological differences can lead to divergent responses to environmental drivers (i.e. climate and fisheries). Moreover, because such effects may not be apparent when all individuals are considered together, ignoring sex differences could underestimate the relative influence of a changing environment on demography.
Fast evaluation of study designs for spatially explicit capture–recapture
Authors: Efford Murray G. , Boulanger John 
Published: June 2019

Abstract

Spatially explicit capture–recapture methods use data from the detection of marked animals at known points in space to estimate animal population density without bias from edge effects. Detection is by means of stationary devices such as traps, automatic cameras or DNA hair snags. Data collection is often expensive, and it is not obvious how to optimize the frequency of sampling and the spatial layout of detectors. Results from a pilot study may be extrapolated by simulation to predict the effectiveness of different configurations of multiple detectors, but simulation is slow and requires technical expertise.

Another approach for evaluating novel designs is to compute intermediate variables such as the expected number of detected individuals E(n) and expected number of recapture events E(r), and to seek relationships between these variables and quantities of interest such as precision and power.

We present formulae for the expected counts and power. For many scenarios the relative standard error (RSE) of estimated density is close to , and for maximum precision E(n) ≈ E(r). We compare the approximation for with more rigorous results from simulation.

Computation of E(n) and E(r) is deterministic and much faster than simulation, so it is readily included in interactive software for designing studies with enough power to answer ecological questions. The related approximation for is adequate for many purposes.
Optimum leaf excision increases the biomass accumulation and seed yield of maize plants under different planting patterns
Authors: Raza Muhammad A. , Feng Ling Y. , Khalid Muhammad H. B. , Iqbal Nasir , Meraj Tehseen A. , Hassan Muhammad J. , Ahmed Shoaib , Chen Yuan K. , Feng Yang , Wenyu Yang 
Published: June 2019

AbstractWithout developing new agronomic practices, present rates of improvement in seed yields of cereal crops globally are insufficient to fulfil the estimated increasing food demand for 2050 and beyond. Intercropping is one of the agricultural practices that can lead to greater crop yields. However, there exists leaf redundancy for maize in intercropping systems, and the top canopy leaves shade more competent leaves at middle strata of maize plants. Therefore, this work aimed to elucidate the effect of leaf excision treatments in maize to understand the optimum leaf area of maize plants under a maize–soybean relay‐intercropping system (MSR) and a sole cropping system (SM). The effects of four‐leaf excision treatments (T1, 0; T2, 2; T3, 4; T4, 6 leaves excised from the top of maize plants until 7 days after silking) on light interception, leaf area index (LAI), photosynthetic characteristics, total biomass accumulation at blistering stage (BS), dough stage (DS) and physiological maturity (PM), and seed yield of maize were investigated through field experiments for 2 years under MSR and SM. Results showed that, under MSR and SM, as compared to control (T1), optimum excision of leaves (T2) from the top of maize plants significantly improved the light interception (by 25, 18 and 16% at BS, DS and PM, respectively) to lower strata leaves and accelerated the biomass partitioning to maize seeds (by 13 and 12% at DS and PM, respectively). Importantly, plants under T2 exhibited higher green leaf area than control, that is, excision the top two leaves led to an increase in LAI at PM by 10%, suggesting that leaf senescence under T2 was delayed which enhanced the photosynthetic rate at PM by 7% in 2017 and 6% in 2018. Relative to T1, maize under T2 produced 19 and 13% higher maize yield under MSR and SM, respectively, and relay‐cropped maize had 90% of SM seed yield. These results suggest that by manipulating the canopy structure of maize plants we can enhance the biomass accumulation and seed yield of maize crops under MSR and SM.
Use of intracytoplasmic sperm injection (ICSI) in normospermic men may result in lower clinical pregnancy and live birth rates
Authors: Sustar Kylie , Rozen Genia , Agresta Franca , Polyakov Alex 
Published: June 2019

BackgroundWhile intracytoplasmic sperm injection (ICSI) was developed for overcoming male infertility, it is increasingly being used for non‐male factor indications, without consensus regarding the safety and efficacy of this approach.AimsTo determine whether ICSI offers any benefit compared to standard in vitro fertilisation (IVF), in the setting of normal semen parameters.Materials and MethodsRetrospective analysis of reproductive outcomes in 3363 stimulated cycles (IVF = 1661; ICSI = 1702), in patients treated between 2009–2015, was performed. Selected couples had no male factor infertility. Couples with abnormal semen parameters (based on WHO 2010 guidelines), presence of anti‐sperm antibodies and low oocyte yield of ≤4 oocytes, were excluded. The outcomes analysed included: (1) fertilisation rate (FR); (2) clinical pregnancy rate (CPR); and (3) live birth rate (LBR), by method of fertilisation used (IVF vs ICSI) and controlling for significant confounders.ResultsFR, CPR and LBR were significantly higher in the IVF group compared with ICSI (67.1% vs 62.3%, 23.06% vs 16.8%, 17.22% vs 13.2%, respectively). Pregnancy rate with ICSI was approximately 30% lower than with IVF, even when controlling for significant factors such as day of embryo transfer and number of embryos transferred. This translates to one less pregnancy in every 15 cycles where ICSI was used without clear indication.ConclusionsOur data suggest that ICSI may be detrimental to clinical outcomes and contributes to the wider understanding of use of ICSI in normospermic men.
Regulation of immunity and allergy by helminth parasites
Authors: Maizels Rick M. 
Published: June 2019

AbstractThere is increasing interest in helminth parasite modulation of the immune system, both from the fundamental perspective of the “arms race” between host and parasite, and equally importantly, to understand if parasites offer new pathways to abate and control untoward immune responses in humans. This article reviews the epidemiological and experimental evidence for parasite down‐regulation of host immunity and immunopathology, in allergy and other immune disorders, and recent progress towards defining the mechanisms and molecular mediators which parasites exploit in order to modulate their host. Among these are novel products that interfere with epithelial cell alarmins, dendritic cell activation, macrophage function and T‐cell responsiveness through the promotion of an immunoregulatory environment. These modulatory effects assist parasites to establish and survive, while dampening immune reactivity to allergens, autoantigens and microbiome determinants.
In vitro evaluation of an adaptive Starling‐like controller for dual rotary ventricular assist devices
Authors: Stephens Andrew , Gregory Shaun , Tansley Geoff , Busch Andrew , Salamonsen Robert 
Published: June 2019

AbstractRotary ventricular assist devices (VADs) operated clinically under constant speed control (CSC) cannot respond adequately to changes in patient cardiac demand, resulting in sub‐optimal VAD flow regulation. Starling‐like control (SLC) of VADs mimics the healthy ventricular flow regulation and automatically adjusts VAD speed to meet varying patient cardiac demand. The use of a fixed control line (CL – the relationship between ventricular preload and VAD flow) limits the flow regulating capability of the controller, especially in the case of exercise. Adaptive SLC (ASLC) overcomes this limitation by allowing the controller to adapt the CL to meet a diverse range of circulatory conditions. This study evaluated ASLC, SLC and CSC in a biventricular supported mock circulation loop under the simulated conditions of exercise, sleep, fluid loading and systemic hypertension. Each controller was evaluated on its ability to remain within predefined limits of VAD flow, preload, and afterload. The ASLC produced superior cardiac output (CO) during exercise (10.1 L/min) compared to SLC (7.3 L/min) and CSC (6.3 L/min). The ASLC produced favourable haemodynamics during sleep, fluid loading and systemic hypertension and could remain within a predefined haemodynamic range in three out of four simulations, suggesting improved haemodynamic performance over SLC and CSC.
Complex neural representation of odour information in the olfactory bulb
Authors: Li Anan , Rao Xiaoping , Zhou Yang , Restrepo Diego 
Published: June 2019

AbstractThe most important task of the olfactory system is to generate a precise representation of odour information under different brain and behavioural states. As the first processing stage in the olfactory system and a crucial hub, the olfactory bulb plays a key role in the neural representation of odours, encoding odour identity, intensity and timing. Although the neural circuits and coding strategies used by the olfactory bulb for odour representation were initially identified in anaesthetized animals, a large number of recent studies focused on neural representation of odorants in the olfactory bulb in awake behaving animals. In this review, we discuss these recent findings, covering (a) the neural circuits for odour representation both within the olfactory bulb and the functional connections between the olfactory bulb and the higher order processing centres; (b) how related factors such as sniffing affect and shape the representation; (c) how the representation changes under different states; and (d) recent progress on the processing of temporal aspects of odour presentation in awake, behaving rodents. We highlight discussion of the current views and emerging proposals on the neural representation of odorants in the olfactory bulb.
Claudin‐15 forms a water channel through the tight junction with distinct function compared to claudin‐2
Authors: Rosenthal Rita , Günzel Dorothee , Piontek Jörg , Krug Susanne M. , Ayala‐Torres Carlos , Hempel Caroline , Theune Dian , Fromm Michael 
Published: June 2019

AbstractAimClaudin‐15 is mainly expressed in the small intestine and indirectly involved in glucose absorption. Similar to claudin‐2 and ‐10b, claudin‐15 is known to form a paracellular channel for small cations. Claudin‐2, but not claudin‐10b, also forms water channels. Here we experimentally tested whether claudin‐15 also mediates water transport and if yes, whether water transport is Na+‐coupled, as seen for claudin‐2.MethodsMDCK C7 cells were stably transfected with claudin‐15. Ion and water permeability were investigated in confluent monolayers of control and claudin‐15‐expressing cells. Water flux was induced by an osmotic or ionic gradient.ResultsExpression of claudin‐15 in MDCK cells strongly increased cation permeability. The permeability ratios for monovalent cations indicated a passage of partially hydrated ions through the claudin‐15 pore. Accordingly, its pore diameter was determined to be larger than that of claudin‐2 and claudin‐10b. Mannitol‐induced water flux was elevated in claudin‐15‐expressing cells compared to control cells. In contrast to the Na+‐coupled water flux of claudin‐2 channels, claudin‐15‐mediated water flux was inhibited by Na+ flux. Consequently, water flux was increased in Na+‐free solution. Likewise, Na+ flux was decreased after induction of water flux through claudin‐15.ConclusionClaudin‐15, similar to claudin‐2, forms a paracellular cation and water channel. In functional contrast to claudin‐2, water and Na+ fluxes through claudin‐15 inhibit each other. Claudin‐15 allows Na+ to retain part of its hydration shell within the pore. This then reduces the simultaneous passage of additional water through the pore.
DNA methylation is associated with inhaled corticosteroid response in persistent childhood asthmatics
Authors: Wang Alberta L. , Gruzieva Olena , Qiu Weiliang , Kebede Merid Simon , Celedón Juan C. , Raby Benjamin A. , Söderhäll Cilla , DeMeo Dawn L. , Weiss Scott T. , Melén Erik , Tantisira Kelan G. 
Published: June 2019

AbstractBackgroundResponse to inhaled corticosteroids is highly variable, and the association between DNA methylation and treatment response is not known.ObjectiveTo examine the association between peripheral blood DNA methylation and inhaled corticosteroid response in children with persistent asthma.MethodsEpigenome‐wide DNA methylation was analysed in individuals on inhaled corticosteroids in three independent and ethnically diverse cohorts—Childhood Asthma Management Program (CAMP); Children, Allergy, Milieu, Stockholm, Epidemiology (BAMSE); and Genetic Epidemiology of Asthma in Costa Rica Study (GACRS). Treatment response was evaluated using two definitions, the absence of emergency department visits and/or hospitalizations and the absence oral corticosteroid use while on inhaled corticosteroid therapy. CpG sites meeting nominal significance (P < 0.05) for each outcome were combined in a three‐cohort meta‐analysis with adjustment for multiple testing. DNA methylation was correlated with gene expression using Pearson and partial correlations.ResultsIn 154 subjects from CAMP, 72 from BAMSE, and 168 from GACRS, relative hypomethylation of cg00066816 (171 bases upstream ofIL12B) was associated with the absence of emergency department visits and/or hospitalizations (Q = 0.03) in all cohorts and lowerIL12Bexpression (ρ = 0.34,P = 0.01) in BAMSE. Relative hypermethylation of cg04256470 (688 bases upstream ofCORT) was associated with the absence of oral corticosteroid use (Q = 0.04) in all cohorts and higherCORTexpression (ρ = 0.20,P = 0.045) in CAMP.Conclusion and Clinical RelevanceDifferential DNA methylation ofIL12BandCORTare associated with inhaled corticosteroid treatment response in persistent childhood asthmatics. Pharmaco‐methylation can identify novel markers of treatment sensitivity in asthma.