bluuebunny/crossref_metadata_2025_split huggingface dataset:
The effects of income and food safety perception on vegetable expenditure in the Tamale Metropolis, Ghana
Authors: Amfo Bismark , Ansah Isaac Gershon Kodwo , Donkoh Samuel A. 
Published: April 2019

Purpose
The purpose of this paper is to examine how consumers’ concern for food safety and income levels influence vegetable consumption patterns and expenditure in Tamale, Ghana.

Design/methodology/approach
Using data from a survey of 300 urban consumers, quantile regression analyses are used to examine how food safety consciousness, income and other factors influence vegetable expenditure across different quantiles.

Findings
Whereas protein-rich foods take smaller proportion, vegetables and cereals take more than half of the household food budget. Poor households spend greater proportion of income on food relative to wealthier households, although absolute amounts spent on food takes the opposite direction. Engel’s law applies to composite food expenditure and individual food classes. Bennett’s law applies to various food groups, with high-income households showing high dietary diversity than middle- and low-income households. Food safety consciousness and income groupings significantly influence vegetable expenditure at various quantiles. Expenditure of food safety conscious and high-income consumers are positioned on higher quantiles.

Research limitations/implications
The findings suggest a potential for agribusiness investors to develop safer vegetable niche markets in the study area.

Originality/value
The study is the first to analyze vegetable consumption in Ghana with a focus on food safety consciousness, income levels and consumers’ location.
Investigating the effects of psychological empowerment and interpersonal conflicts on employees’ knowledge sharing intentions
Authors: Wang Wei-Tsong , Wang Yi-Shun , Chang Wan-Ting 
Published: April 2019

PurposeThe purpose of this paper is to investigate how different forms of interpersonal conflicts and employees’ psychological empowerment may affect knowledge sharing intentions directly or indirectly via interpersonal trust in the workplace.Design/methodology/approachSurvey data collected from 249 employees of 37 of the top 500 corporations in the manufacturing industry in Taiwan were used for the data analysis. The research model was analyzed using the component-based structural equation modeling technique, namely, the partial least squares (PLS) approach.FindingsThe results indicate that both relationship and task conflicts have significant indirect effects on employees’ knowledge sharing intentions via psychological empowerment and trust. Additionally, psychological empowerment significantly influences employees’ knowledge sharing intentions both directly and indirectly via trust.Research limitations/implicationsThe primary theoretical implication is an advancement in the understanding of the critical antecedents of and their different effects on employees’ knowledge sharing intentions from the perspectives of conflict management and individual psychological empowerment. Future research may concentrate on investigating the bidirectional interactions among trust, relationship conflicts and task conflicts in different knowledge-sharing contexts.Practical implicationsThis study provides practical insights into conflict resolution intended to facilitate psychological empowerment and interpersonal trust that encourage knowledge sharing in the workplace.Originality/valueTo the best of the authors’ knowledge, this study is the first knowledge sharing study that empirically examines how task and relationship conflicts affect employees’ knowledge sharing intentions differently via the mediation of their perceived psychological empowerment and interpersonal trust in one another in the workplace.
Control of fraud on mobile money services in Ghana: an exploratory study
Authors: Akomea-Frimpong Isaac , Andoh Charles , Akomea-Frimpong Agnes , Dwomoh-Okudzeto Yvonne 
Published: April 2019

Purpose
Fraud is a global economic menace which threatens the survival of individuals, firms, industries and economies, and the mobile money service is no exception. This paper aims to explore the main causes of fraud in the mobile money services in Ghana and the measures to combat the menace by the key stakeholders connected to the mobile money services. The paper is motivated by recent reports of numerous fraudulent transactions on the mobile money platform, and the need to clamp down these nefarious transactions with effective and practical measures to sustain the service.

Design/methodology/approach
A thorough review of existing studies on fraud risk relating to mobile money services was done revealing a paucity of literature on the subject. Primary data were gathered using an interview guide to explore the magnitude of the problem based on the views of employees of mobile money operators, mobile money agents, banking supervisors from Bank of Ghana, employees of partnering banks, employees of National Communications Authority and mobile money subscribers.

Findings
The study revealed that fraud in mobile money services is caused by weak internal controls and systems, lack of sophisticated information technology tools to detect the menace, inadequate education and training and the poor remuneration of employees. These factors disrupt the growth, and the smooth-running of the services. To curb this menace, a detailed legal code and internal fraud policy should be developed and used by mobile money operators and partner banks. Adequate training for mobile money agents should be encouraged coupled with public awareness campaigns to educate stakeholders especially the mobile money subscribers on the tricks of the fraudsters.

Research limitations/implications
With the chosen research methodology and limited sample size, the findings may not reflect the views of all the stakeholders connected to the mobile money services. Therefore, future studies on this subject are entreated to use research methods which embrace larger samples to get more details about this menace.

Practical implications
The study will assist in tackling the mobile money fraud to sustain the service in the foreseeable future.

Originality/value
This paper contributes to scanty literature on fraud relating to the mobile money services by drawing lessons from a middle-income country.
Unearthing money laundering at Brazilian oil giant Petrobras
Authors: Maragno Lucas , Borba José Alonso 
Published: April 2019

Purpose
This paper aims to provide an overview of key points pertaining to financial crimes taking place during the single largest fraud scandal in Brazilian history. The authors provide details on how the historic fraud was carried out at Petrobras, as well as an overview of recent anti-money laundering regulation in Brazil.

Design/methodology/approach
The paper is based on an analysis of the scandal and on legal ramifications enacted by the prevailing Public Ministry taking place through the “Lava Jato” operation.

Findings
Fraud perpetrators continue to find new ways to move laundered money into campaign finance. The authors provide details on how the scheme was perpetrated at the placement, layering and integration stages.

Research limitations/implications
This study comprehends the first stage of the Federal Police’s operation, comprising 14 allegations of financial crimes.

Practical implications
A disconnect between regulations in effect and the reality of money laundering in Brazil over several years has failed to impede numerous cases of fraud. However, changes in legislation have allowed state agents to discover cases of fraud, with more and more wrongdoings being investigated.

Originality/value
The Petrobras fraud, individual experiences of organized financial crime and a widespread lack of understanding of how to detect and prevent fraud on this scale.
How organizational green culture influences green performance and competitive advantage
Authors: Wang Chao-Hung 
Published: April 2019

PurposeGrowing public concern about the natural environment is rapidly transforming the competitive landscape and forcing firms to adopt green innovation strategies. Many manufacturing firms have recognized the concept of green innovation, though there has been relatively little research on considerations of its driver and effect. The purpose of this paper is to empirically develop and test a theoretical model that analyzes how organizational green culture (OGC) influences green performance and competitive advantage. Specifically, this model explains how green innovation mediates these relationships.Design/methodology/approachThe paper collected data from 327 manufacturing firms of different industry sectors in Taiwan. Structural equation modeling with AMOS 11 software was applied to analyze the data. Data on specific environmental innovation issues at the firm level are not usually available from published sources, so this paper uses a questionnaire. The questionnaire is developed based on the literature.FindingsThe findings of this paper suggest that OGC significantly predicted green performance and competitive advantage, respectively. Moreover, the results show that both green innovation completely mediates between OGC and green performance, and that it has a partially mediating effect on the relationship between organization green culture and competitive advantage under environmental pressure.Research limitations/implicationsThis study has some limitations that point to the future lines of research. Perhaps, the biggest limitation of the study is that the data are from a single country, which may hamper generalization. This study is also limited in that it is based on cross-sectional data. A final limitation is the origin of organizational culture vs employee attitude culture.Originality/valueThis study contributes to the existing literature on organizational culture and innovation by considering green environmental concerns, which have not been empirically explored. This study also offers a unique theoretical argument describing the relationships by considering the mediating effect of green innovation strategy.
Investigating the influence of knowledge management on organizational innovation in higher educational institutions
Authors: Sadeghi Boroujerdi Saeed , Hasani Kaveh , Delshab Vahid 
Published: April 2019

PurposeThis study aims to investigate the relationship between knowledge management (KM) and organizational innovation (OI) in higher educational institutions.Design/methodology/approachThe research method in the study was the descriptive – correlative type and was applied research based on the target. The study population consisted of managers and staff members of 63 Iranian higher educational institutions. In this research, descriptive and inferential statistics were used. To analyse research data, descriptive statistics, and for inferential statistics, the Pearson correlation coefficient test, the simple linear regression test and multiple regression tests were used. For data analysis, SPSS software was used.FindingsThe results of the study demonstrated that there was a significant relationship between KM and OI, and all alternative hypotheses were confirmed. In addition, KM predicted the aspects of organizational innovation in higher educational institutions.Originality/valueThis study supported the members of higher educational institutions to understand how to increase OIbetter and to improve the knowledge and experience of the employees through KM.
Association of OSR‐1 With Vascular Dysfunction and Hypertension in Polycystic Kidney Disease
Authors: Kocyigit Ismail , Taheri Serpil , Eroglu Eray , Zararsiz Gokmen , Sener Elif Funda , Uzun Ilknur , Imamoglu Hakan , Mehmetbeyoglu Ecmel , Unal Aydin , Korkmaz Keziban , Sipahioglu Murat Hayri , Oymak Oktay , Tokgoz Bulent 
Published: April 2019

AbstractAutosomal‐dominant polycystic kidney disease (ADPKD) is associated with oxidative stress and hypertension development before renal function decline and cardiovascular disease development. Oxidative stress‐responsive kinase‐1 (OSR‐1) participates in the signaling regulating Na+ transport during oxidative stress and also plays a role in the regulation of cell volume and blood pressure. Therefore, we aimed to investigate the potential role of OSR‐1 in ADPKD patients. Eighty ADPKD patients, 80 healthy controls, and 80 non‐ADPKD patients with hypertension were enrolled in this cross‐sectional study. Twenty‐four‐hour ambulatory blood pressure monitoring was conducted in all participants. Blood samples were taken after 12‐h fasting for the measurement of biochemical parameters and OSR‐1 gene expression. Vascular dysfunction was assessed using ischemia‐induced forearm flow‐mediated vasodilation (FMD). Briefly, of the 80 ADPKD patients, 41(51%) were male, and 53(66%) of them were hypertensive. The mean age of the 80 controls was 35.3 ± 12.6 years, and 37(46%) of them were male. The mean age of the 80 non‐ADPKD patients with hypertension was 44.6 ± 11.9 years, and 38(47.5) of them were male. There were significant differences in serum OSR‐1 gene expression between the ADPKD patients and the control subjects. Serum OSR‐1 gene expression was also significantly increased in hypertensive ADPKD patients in comparison with both normotensive ADPKD counterparts and non‐ADPKD hypertensive subjects. Serum OSR‐1 gene expression was increased in patients with ADPKD than healthy subjects. Low estimated glomerular filtration rate (eGFR), OSR‐1 gene expression, total kidney volume (TKV), and high‐density lipoprotein (HDL) were also independently associated with hypertension in ADPKD patients.
Safety and efficacy of thermal ablation for subpleural lung cancers
Authors: Cao Fei , Xie Lin , Qi Han , Chen Shuanggang , Shen Lujun , Song Ze , Fan Weijun 
Published: April 2019

BackgroundThe study was conducted to assess the safety and efficacy of thermal ablation for the treatment of subpleural lung cancer.MethodsEighty‐nine patients with 101 subpleural lung cancers were identified between January 2012 and July 2018 in our database and included in this study. Tumors were classified as adhering to cervical, costal, diaphragmatic, and mediastinal pleurae. Lesions were categorized based on their relationship to the pleura: close to the pleura, causing pleural indentation, and involving the pleura. The complete ablation rate, local progression‐free survival, complications, and associated factors were analyzed.ResultsSubpleural lung cancers included lesions located under costal (n = 69), mediastinal (n = 17), cervical (n = 8), and diaphragmatic (n = 7) pleurae. The rate of complete ablation was 87.1% and the local progression‐free survival rates at 3, 6, 12, and 24 months were 86%, 77%, 75%, and 64%, respectively. Tumor size was the most important factor influencing technique efficacy (P < 0.05), with a complete ablation rate of only 55.6% in lung cancers measuring > 30 mm. There were nine (10.11%) major complications, including one chest abscess, five cases of pneumothorax, and three cases of hemothorax. The occurrence of major complications was associated with increased levels of pain within 48 hours post‐procedure (P < 0.05).ConclusionLocal thermal ablation is a safe and effective treatment for subpleural lung cancers. Tumor size was the most significant factor affecting technique efficacy. Post‐procedure pain indicated the possibility of major complications.
Integrated population models: Model assumptions and inference
Authors: Riecke Thomas V. , Williams Perry J. , Behnke Tessa L. , Gibson Daniel , Leach Alan G. , Sedinger Benjamin S. , Street Phillip A. , Sedinger James S. 
Published: April 2019

Abstract

Integrated population models (IPMs) have become increasingly popular for the modelling of populations, as investigators seek to combine survey and demographic data to understand processes governing population dynamics. These models are particularly useful for identifying and exploring knowledge gaps within life histories, because they allow investigators to estimate biologically meaningful parameters, such as immigration or reproduction, that were previously unidentifiable without additional data. As IPMs have been developed relatively recently, there is much to learn about model behaviour. Behaviour of parameters, such as estimates near boundaries, and the consequences of varying degrees of dependency among datasets, has been explored. However, the reliability of parameter estimates remains underexamined, particularly when models include parameters that are not identifiable from one data source, but are indirectly identifiable from multiple datasets and a presumed model structure, such as the estimation of immigration using capture‐recapture, fecundity and count data, combined with a life‐history model.

To examine the behaviour of model parameter estimates, we simulated stable populations closed to immigration and emigration. We simulated two scenarios that might induce error into survival estimates: marker induced bias in the capture–mark–recapture data and heterogeneity in the mortality process. We subsequently fit capture–mark–recapture, state‐space and fecundity models, as well as IPMs that estimated additional parameters.

Simulation results suggested that when model assumptions are violated, estimation of additional, previously unidentifiable, parameters using IPMs may be extremely sensitive to these violations of model assumption. For example, when annual marker loss was simulated, estimates of survival rates were low and estimates of immigration rate from an IPM were high. When heterogeneity in the mortality process was induced, there were substantial relative differences between the medians of posterior distributions and truth for juvenile survival and fecundity.

Our results have important implications for biological inference when using IPMs, as well as future model development and implementation. Specifically, using multiple datasets to identify additional parameters resulted in the posterior distributions of additional parameters directly reflecting the effects of the violations of model assumptions in integrated modelling frameworks. We suggest that investigators interpret posterior distributions of these parameters as a combination of biological process and systematic error.
Accounting for automated identification errors in acoustic surveys
Authors: Barré Kévin , Le Viol Isabelle , Julliard Romain , Pauwels Julie , Newson Stuart E. , Julien Jean‐François , Claireau Fabien , Kerbiriou Christian , Bas Yves 
Published: April 2019

Abstract

Assessing the state and trend of biodiversity in the face of anthropogenic threats requires large‐scale and long‐time monitoring, for which new recording methods offer interesting possibilities. Reduced costs and a huge increase in storage capacity of acoustic recorders have resulted in an exponential use of passive acoustic monitoring (PAM) on a wide range of animal groups in recent years. PAM has led to a rapid growth in the quantity of acoustic data, making manual identification increasingly time‐consuming. Therefore, software detecting sound events, extracting numerous features and automatically identifying species have been developed. However, automated identification generates identification errors, which could influence analyses which look at the ecological response of species. Taking the case of bats for which PAM constitutes an efficient tool, we propose a cautious method to account for errors in acoustic identifications of any taxa without excessive manual checking of recordings.

We propose to check a representative sample of the outputs of a software commonly used in acoustic surveys (Tadarida), to model the identification success probability of 10 species and two species groups as a function of the confidence score provided for each automated identification. Using this relationship, we then investigated the effect of setting different false positive tolerances (FPTs), from a 50% to 10% false positive rate, above which data are discarded, by repeating a large‐scale analysis of bat response to environmental variables and checking for consistency in the results.

Considering estimates, standard errors and significance of species response to environmental variables, the main changes occurred between the naive (i.e. raw data) and robust analyses (i.e. using FPTs). Responses were highly stable between FPTs.

We conclude it was essential to, at least, remove data above 50% FPT to minimize false positives. We recommend systematically checking the consistency of responses for at least two contrasting FPTs (e.g. 50% and 10%), in order to ensure robustness, and only going on to conclusive interpretation when these are consistent. This study provides a huge saving of time for manual checking, which will facilitate the improvement in large‐scale monitoring, and ultimately our understanding of ecological responses.
Compliance with screening for and recommended management of maternal group B streptococcus carriage in pregnancy
Authors: Moorhead Rebecca , Daley Andrew J. , Lee Lai‐yang , Gorelik Alexandra , Garland Suzanne M. 
Published: April 2019

BackgroundUniversal screening of pregnant women at 35–37 weeks gestation is recommended for detection of anogenital group B streptococcus carriage. Intrapartum chemoprophylaxis is prescribed to carriers to prevent transmission to babies, reducing early‐onset neonatal group B streptococcal sepsis.AimsTo review compliance with, and the effects of education on group B streptococcus screening and intrapartum chemoprophylaxis practices at The Royal Women's Hospital, Melbourne, Australia.Materials and MethodsA retrospective audit of women delivering in February 2016 and February–March 2017 was conducted. In February 2017, updated early‐onset group B streptococcal disease prevention guidelines were released and promoted with targeted education of clinical staff. Compliance was considered appropriate if practices followed up‐to‐date local protocols.ResultsScreening rate for group B streptococcus was 84.4% (599/710) and carriage rate 19.5% (109/558), while intrapartum antibiotic prophylaxis was optimal in 83% of those labouring greater than four hours (39/47). There was no significant difference in compliance between 2016 and 2017. Of 113 women with unknown group B streptococcal status at delivery, only five of 33 (15%) with clinical risk factors for early‐onset neonatal disease received intrapartum prophylaxis.ConclusionsCompliance remained stable, with no change during or after implementation of new protocols. Compliance with protocols was low for cases with unknown group B streptococcal status at delivery but with the presence of one or more clinical risk factors for early‐onset group B streptococcal sepsis.