bluuebunny/crossref_metadata_2025_split huggingface dataset:
Divulging diazotrophic bacterial community structure in Kuwait desert ecosystems and their N2-fixation potential
Authors: Suleiman M. K. , Quoreshi A. M. , Bhat N. R. , Manuvel A. J. , Sivadasan M. T. 
Published: July 2019

AbstractKuwait is a semi-arid region with harsh climatic conditions with poor available soil nutrient essential for the growth of plants. Kuwait’s ecosystem is relatively N-poor ecosystem when compared to the other ecosystems. Biological nitrogen fixation (BNF) is a spontaneous process in which diazotrophic bacteria fixes the atmospheric nitrogen directly in to the bionetwork. At present, there is limited information on free-living and root associated nitrogen-fixing bacteria, their potential to fix nitrogen to aid natural plant communities in the desert of Kuwait. In this study, free-living N2-fixing bacteria were enriched and isolated from the rhizospheric soil of three keystone native plant species of Kuwait; such asRhanterium epapposum, Farsetia aegyptia, andHaloxylon salicornicum. Root associated bacteria were directly isolated from the root nodules ofVachellia pachyceras. In this study, a number of free-living and root associated dizotrophs were isolated from various rhizospheric soils of three native shrubs and root nodules from one tree species. The screened isolates were assessed for nitrogen-fixing ability and identified using Acetylene Reduction Assay (ARA) and 16s rRNA gene sequencing, respectively. Our study successfully identified all the 50 nitrogen-fixers isolated initially and out of that, 78% were confirmed as nitrogen-fixers using ARA. Among the identified nitrogen fixers, the genusRhizobiumis dominant in rhizospheric soil ofRhanterium epapposum, whereasPseudomonasandRhizobiumare dominant in the rhizospheric soil ofFarsetia aegyptia, andHaloxylon salicornicumrespectively. The speciesAgrobacterium tumefaciensis found dominant in the root nodules ofV. pachyceras. The current results indicate that plant species and their rhizospheric effects are important drivers for specificity of microbial diversity in arid soils. To our knowledge, this study is the first investigation of culture-based isolation, molecular identification, and evaluation of N2-fixing ability of diazotrophs from Kuwait desert environment.
Cardiovascular parameters in capitive blue-fronted amazon parrots (Amazona aestiva, Linnaeus, 1758) with varying body condition scores
Authors: dos Santos Gisele Junqueira , Aleixo Amanda Sarita Cruz , Silva Jeana Pereira Da , Hippólito Alícia Giolo , Ferro Bárbara Sardela , Oliveira Elton Luis Ritir , Okamoto Priscylla Tatiana Chalfun Guimarães , Lourenço Maria Lucia Gomes , de Vasconcelos Machado Vania Maria , Melchert Alessandra 
Published: July 2019

AbstractThis study aims at determining the echocardiographic, radiographic and tomographic parameters of blue-fronted Amazon parrots (Amazona aestiva) with varying body condition scores. Thirty-five birds grown in captivity were included in the study and allocated into groups according to their respective body condition scores: Lean, Ideal and Obese. The echocardiographic evaluation revealed that obese parrots presented lower right ventricle dimensions in diastole than lean parrots. The fractional shortening was considerably lower in obese parrots than in parrots with lean and ideal body condition scores, but without statistical significance. The flow rate and the aortic pressure gradient were lower in the lean group than in the ideal group. No differences were observed between the groups when comparing the radiographic and tomographic measurements. Therefore, as is the case in mammals, we can conclude that alterations in the nutritional state of blue-fronted amazon parrots lead to cardiovascular dysfunctions detected only through an echocardiographic evaluation, which represents an important diagnostic tool for these animals. Computed tomography scans allowed a better identification of the structures of the cardiovascular system without the overlaying structures of the celomatic cavity observed in radiographic images. However, radiographic examinations should still be considered the standard screening examination to identify cardiac alterations such as increased or reduced organ dimensions. Standardizing the technique and describing the measurements obtained in this study may serve as a basis for further research.
Olaparib and Enzalutamide synergistically suppress HCC progression via the AR-mediated miR-146a-5p/BRCA1 signaling
Authors: Zhao Jie , Sun Yin , Lin Hui , Chou Fuju , Xiao Yao , Jin Ren’an , Cai Xiujun , Chang Chawnshang 
Published: July 2019

AbstractHepatocellular carcinoma (HCC) is one of most common malignant tumors worldwide, however, the treatment for advanced HCC remains unsatisfactory. Here we found that Olaparib, a FDA approved PARP inhibitor, could enhance the cytotoxicity in HCC cells with a lower BRCA1 expression, and suppressing the AR with either Enz or AR-shRNA could further increase the Olaparib sensitivity to better suppress the HCC cell growth via a synergistic mechanism that may involve suppressing the expression of BRCA1 and other DNA damage response (DDR) genes. Mechanism studies revealed that Enz/AR signaling might transcriptional regulting the miR-146a-5p expression via binding to the AREs on its 5’ promoter region, which could then lead to suppress the homologous recombination-related BRCA1 expression via direct binding to its 3’ UTR of mRNA. Preclinical study using an in vivo mouse model also proved that combined Enz plus Olaparib led to better suppression of the HCC progression. Together, these in vitro/in vivo data suggest that combining Enz and Olaparib may help in the development of a novel therapy to better suppress the HCC progression.
Does extreme rainfall lead to heavy losses in the food industry?
Authors: Lucas Edimilson Costa , Mendes-Da-Silva Wesley , Araujo Gustavo Silva 
Published: July 2019

PurposeManaging the risks associated to world food production is an important challenge for governments. A range of factors, among them extreme weather events, has threatened food production in recent years. The purpose of this paper is to analyse the impact of extreme rainfall events on the food industry in Brazil, a prominent player in this industry.Design/methodology/approachThe authors use the AR-GARCH-GPD hybrid methodology to identify whether extreme rainfall affects the stock price of food companies. To do so, the authors collected the daily closing price of the 16 food industry companies listed on the Brazilian stock exchange (B3), in January 2015.FindingsThe results indicate that these events have a significant impact on stock returns: on more than half of the days immediately following the heavy rain that fell between 28 February 2005 and 30 December 2014, returns were significantly low, leading to average daily losses of 1.97 per cent. These results point to the relevance of the need for instruments to hedge against weather risk, particularly in the food industry.Originality/valueGiven that extreme weather events have been occurring more and more frequently, financial literature has documented attempts at assessing the economic impacts of weather changes. There is little research, however, into assessing the impacts of these events at corporate level.
Understanding the cultural concerns of libraries based on automatic image analysis
Authors: Ding Heng , Lu Wei , Jiang Tingting 
Published: July 2019

Purpose
Photographs are a kind of cultural heritage and very useful for cultural and historical studies. However, traditional or manual research methods are costly and cannot be applied on a large scale. This paper aims to present an exploratory study for understanding the cultural concerns of libraries based on the automatic analysis of large-scale image collections.

Design/methodology/approach
In this work, an image dataset including 85,023 images preserved and shared by 28 libraries is collected from the Flickr Commons project. Then, a method is proposed for representing the culture with a distribution of visual semantic concepts using a state-of-the-art deep learning technique and measuring the cultural concerns of image collections using two metrics. Case studies on this dataset demonstrated the great potential and promise of the method for understanding large-scale image collections from the perspective of cultural concerns.

Findings
The proposed method has the ability to discover important cultural units from large-scale image collections. The proposed two metrics are able to quantify the cultural concerns of libraries from different perspectives.

Originality/value
To the best of the authors’ knowledge, this is the first automatic analysis of images for the purpose of understanding cultural concerns of libraries. The significance of this study mainly consists in the proposed method of understanding the cultural concerns of libraries based on the automatic analysis of the visual semantic concepts in image collections. Moreover, this paper has examined the cultural concerns (e.g. important cultural units, cultural focus, trends and volatility of cultural concerns) of 28 libraries.
Strategic talent management scholarship: a review of current foci and future directions
Authors: Anlesinya Alex , Dartey-Baah Kwasi , Amponsah-Tawiah Kwesi 
Published: July 2019

PurposeThe purpose of this paper is to review strategic talent management (STM) research with the aim of providing major insights into the under-explored themes, issues, theories and methods.Design/methodology/approachThe method included a systematic review of studies from 2007 to 2019 in five reputable academic databases. In total, 51 studies met the inclusion criteria and were analysed.FindingsSTM can be leveraged to achieve several positive employee, organisational and macro-level outcomes. However, the realisation of these positive outcomes can be threatened by several challenges, which need to be addressed through the creation of conditions critical for the success of talent management strategies. Moreover, effective talent management strategy regime does not lie on the shoulders of just one individual but a collective responsibility of multiple stakeholders. The study also highlighted the digitalisation of STM, integration of ethical and responsible management principles into talent management strategies, and strategic management of unconventional of talent pools as key trends. Finally, several major weaknesses in the current STM scholarship from theoretical, content, context and methodological perspectives are discussed.Research limitations/implicationsAlthough the studies included in the analysis may not include all studies published during the study period, it is assumed that they provide a good representation of such studies.Originality/valueSince no systematic study was conducted specifically on STM, this study contributes to the talent management literature by identifying several research issues and gaps while defining future directions of the field. It can, therefore, enrich STM debates, practices and policy making.
A full comparison study of service discovery approaches for internet of things
Authors: Aziez Meriem , Benharzallah Saber , Bennoui Hammadi 
Published: July 2019

Purpose
The purpose of this paper is to address the Internet of Things (IoT) service discovery problem and investigate the existing solutions to tackle this problem in many aspects.

Design/methodology/approach
This paper presents an overview of IoT services aiming at providing a clear understanding about their features because this term is still ambiguous for the IoT service discovery approaches. Besides, a full comparison study of the most representative service discovery approaches in the literature is presented over four perspectives: the IoT information model, the mechanism of IoT service discovery, the adopted architecture and the context awareness. These perspectives allow classifying, comparing and giving a deeper understanding of the existing IoT service discovery solutions.

Findings
This paper presents a new definition and a new classification of IoT services and citation of their features comparing with the traditional Web services. This paper discusses the existing solutions, as well as the main challenges, that face the service discovery issue in the IoT domain. Besides, two classifications of the approaches are adopted on the basis of their service description model and their mechanism of discovery, and a set of requirements that need to be considered when defining an IoT service are proposed.

Originality/value
There are few number works that survey the service discovery approaches in the IoT domain, but none of these surveys discuss the service description models in the IoT or the impact of the context awareness aspect in the service discovery solution. There are also few works that give a comprehensive overview of IoT services to understand their nature to facilitate their description and discovery. This paper fills this gap by performing a full comparison study of multi-category and recent approaches for service discovery in the IoT over many aspects and also by performing a comprehensive study of the IoT service features.
Advertising music: an alternative atmospheric stimulus to retail music
Authors: Raja Md Washim , Anand Sandip , Allan David 
Published: July 2019

Purpose
Studying the role of advertising music (ad music) in a retail context can be an emergence of new marketing practices. The purpose of this paper is to identify the potential usage and utility of ad music as an atmospheric stimulus in contrast to music (retail music) as an atmospheric stimulus. This paper also aims to provide a model, which depicts how ad music could be an alternative to retail music in retail settings with regard to consumers’ attitudinal influence and its optimistic correlation with related marketing outcomes.

Design/methodology/approach
The paper reviewed the literature related to the role of retail music as an atmospheric stimulus and studies related to the role of music in the ad.

Findings
Advertising music as an atmospheric stimulus is more likely to influence consumers’ attitude towards advertising music, towards advertising and towards the advertised brand. Contrary to retail music, advertising music as an atmospheric stimulus may help a consumer for ad recall, ad message/brand information recall, brand recall, brand identification and brand recognition. Consequently, advertising music may always have an advantage over retail music with regard to purchase intent, brand choice and financial return.

Practical implications
This work may encourage the advertisers for the proper usage of ad music as an atmospheric stimulus that may holistically magnify the saliency of advertising theoretically and practically.

Originality/value
This study is a novel attempt to conceptualise the potential scope of utilisation of ad music in the retail context.
Why do online grocery shoppers switch or stay? An exploratory analysis of consumers’ response to online grocery shopping experience
Authors: Singh Reema 
Published: July 2019

PurposeThe purpose of this paper is to add to current knowledge of online customer experience (OCE) by examining various drivers and outcomes of online grocery shopping experience that can help researchers and retailers answer the pressing question: “Why do online grocery customers stay or switch?”Design/methodology/approachThis study applied netnography and critical incident analysis to a pool of 1,004 reviews captured from forum and review sites dedicated to online grocery shopping.FindingsTwo broad dimensions of OCE, four attributes and 13 factors corresponding to shoppers’ psychological states and their utilitarian and hedonic orientations emerged from the data analysis. The proposed framework, containing these four attributes and corresponding 13 factors, captures the consumers’ intention to stay with the current retailer or switch.Research limitations/implicationsThe study contributes to existing knowledge of OCE by providing a dynamic and yet holistic framework that encompasses experiential states and utilitarian or hedonic orientations in an online grocery context. Although its contributions are valuable to both researchers and practitioners, further quantitative analysis is needed to validate the findings.Practical implicationsIn addition to providing superior customer experience by implementing the various drivers of OCE identified here, online grocery retailers can use the study findings as a strategic guide toward building a frictionless and pleasurable shopping experience.Originality/valueThe study employs netnography and critical incident technique to identify experiential attributes such as reliability, responsiveness, return and refund, which are unique OCE attributes in online grocery, a relatively unexamined field of retailing.
Social entrepreneurship for sustainable heritage management – the case of open-air museums
Authors: Olinsson Sascha Bjarnø , Fouseki Kalliopi 
Published: July 2019

Purpose
The purpose of this paper is to identify the specific potentials of open-air museum and heritage crafts cooperation by using social entrepreneurial approaches as a sustainable growth enabler.

Design/methodology/approach
The study utilised literature, reports, questionnaires, interviews and two in-depth case studies to examine the extent and success of current cooperation and the barriers to success affecting both fields on their own. Finally, the study utilised the recently developed social entrepreneurial tool the “modified Social Entrepreneurial Problem and Objective tree (mSEPOT)” in order to test the models ability to analyse a real-world case and demonstrate solutions and improvement to future cooperation in a heritage context.

Findings
While the tool has not been validated in practice, the study offers the first conceptualization of utilising the tool arguing that innovative future approaches to sustainable heritage development are possible and that heritage managers in the mSEPOT have a tool enabling them to engage with social entrepreneurial approaches, ensuring sustainability of development projects in culture and heritage.

Originality/value
While the tool has not been validated in practice, the study offers the first conceptualization of utilising the tool arguing that innovative future approaches to sustainable heritage development are possible and that heritage managers in the mSEPOT have a tool enabling them to engage with social entrepreneurial approaches, ensuring sustainability of development projects in culture and heritage.
Conceptualizing human resource management in the gig economy
Authors: Meijerink Jeroen , Keegan Anne 
Published: July 2019

Purpose
Although it is transforming the meaning of employment for many people, little is known about the implications of the gig economy for human resource management (HRM) theory and practice. The purpose of this paper is to conceptually explore the notion of HRM in the gig economy, where intermediary platform firms design and implement HRM activities while simultaneously trying to avoid the establishment of employment relationships with gig workers.

Design/methodology/approach
To conceptualize HRM in the gig economy, the authors offer a novel ecosystem perspective to develop propositions on the role and implementation of HRM activities in the gig economy.

Findings
The authors show that HRM activities in the gig economy are designed to govern platform ecosystems by aligning the multilateral exchanges of three key gig economy actors: gig workers, requesters and intermediary platform firms, for ensuring value co-creation. The authors argue that the implementation of HRM activities in the gig economy is contingent on the involvement and activities of these gig economy actors. This means that they are not mere recipients of HRM but also actively engaged in, and needed for, the execution of HRM activities.

Originality/value
The study contributes to research by proposing a theoretical framework for studying the design of HRM activities, and their implementation, in the gig economy. From this framework, the authors derive directions for future research on HRM in the gig economy.
A failure to supervise: the SEC casts a shadow over internal investigations
Authors: Nowak John P. , Zaccaro Thomas A. , Solomon Katherine K. 
Published: July 2019

Purpose
The purpose of this article is to highlight a recent settlement by the United States Securities and Exchange Commission (the “SEC”) in which it alleged that a regulated entity failed to supervise a representative principally because the entity did not establish clear guidance as to how its personnel should investigate red flags of a representative’s potential misconduct (e.g., how to follow up on the red flags and define the scope of any inquiry).

Design/methodology/approach
This article provides an overview of failure-to-supervise liability for broker-dealers and investment advisers, and highlights key takeaways from the SEC’s recent enforcement resolution that may be applied in establishing compliance procedures relating to internal investigations going forward.

Findings
The article concludes that the SEC appears to expect regulated entities to implement procedures guiding employees on “how to investigate” suspicious activity. Companies, however, should define such procedures in general terms to allow for flexibility in investigations, which can present unique or unforeseen situations. Internal procedures must also account for and preserve attorney-client privilege and attorney work product protections.

Originality/value
This article provides expert analysis and practical guidance from experienced lawyers in the Investigations and White Collar Defense and Securities Enforcement practices
Using analytic geometry to quantify the period-to-period changes in an array of values
Authors: Nigrini Mark J. , Karstens William 
Published: July 2019

Purpose
This paper develops a vector variation score that quantifies the change in an array of data points from period-to-period. The array could be the amounts reported on an income tax return, the closing stock prices for a set of listed companies, the monthly sales amounts for retail locations or the monthly balances in general ledger accounts.

Design/methodology/approach
The score is grounded in analytic geometry. The angle θ measures whether the changes were uniformly spread across the line items. The item(s) with the largest contribution(s) to the score can be identified. Line items can be weighted such that they contribute less than fully to the score.

Findings
The method can identify tax returns with large year-on-year changes. The method can identify the fact that the price movements during earnings season are less dependent than is usually the case. The method can identify anomalies in reported sales amounts. The method should be able to identify ledger accounts’ large abnormal changes.

Research limitations/implications
Auditors will need to be trained to interpret the results and to reduce the number of false positives.

Practical implications
The score could be used in both external and internal audit applications where auditors want to quantify and rank period-on-period changes in a search for outliers.

Originality/value
The change score is normalized to the [0, 1] range. The results can be plotted as a polar plot for display on an auditing dashboard. The contribution of a single line item can be calculated and line items can be weighted to prevent them from having an undue influence on the results.