bluuebunny/crossref_metadata_2025_split huggingface dataset:
Multi-scale analysis of streamflow using the Hilbert-Huang Transform
Authors: Di Chongli , Yang Xiaohua , Zhang Xuejun , He Jun , Mei Ying 
Published: July 2014

Purpose– The purpose of this paper is to simulate and analyze accurately the multi-scale characteristics, variation periods and trends of the annual streamflow series in the Haihe River Basin (HRB) using the Hilbert-Huang Transform (HHT).Design/methodology/approach– The Empirical Mode Decomposition (EMD) approach is adopted to decompose the original signal into intrinsic mode functions (IMFs) in multi-scales. The Hilbert spectrum is applied to each IMF component and the localized time-frequency-energy distribution. The monotonic residues obtained by EMD can be treated as the trend of the original sequence.Findings– The authors apply HHT to 14 hydrological stations in the HRB. The annual streamflow series are decomposed into four IMFs and a residual component, which exhibits the multi-scale characteristics. After the Hilbert transform, the instantaneous frequency, center frequency and mean period of the IMFs are obtained. Common multi-scale periods of the 14 series exist, e.g. 3.3a, 4∼7a, 8∼10a, 11-14a, 24∼25a and 43∼45a. The residues indicate that the annual streamflow series has exhibited a decreasing trend over the past 50 years.Research limitations/implications– The HHT method is still in its early stages of application in hydrology and needs to be further tested.Practical implications– It is helpful for the study of the complex features of streamflow.Social implications– This paper will contribute to the sustainable utilization of water resources.Originality/value– This study represents the first use of the HHT method to analyze the multi-scale characteristics of the streamflow series in the HRB. This paper provides an important theoretical support for water resources management.
Fractional calculus for nanoscale flow and heat transfer
Authors: Liu Hong-Yan , He Ji-Huan , Li Zheng-Biao 
Published: July 2014

Purpose
– Academic and industrial researches on nanoscale flows and heat transfers are an area of increasing global interest, where fascinating phenomena are always observed, e.g. admirable water or air permeation and remarkable thermal conductivity. The purpose of this paper is to reveal the phenomena by the fractional calculus.

Design/methodology/approach
– This paper begins with the continuum assumption in conventional theories, and then the fractional Gauss’ divergence theorems are used to derive fractional differential equations in fractal media. Fractional derivatives are introduced heuristically by the variational iteration method, and fractal derivatives are explained geometrically. Some effective analytical approaches to fractional differential equations, e.g. the variational iteration method, the homotopy perturbation method and the fractional complex transform, are outlined and the main solution processes are given.

Findings
– Heat conduction in silk cocoon and ground water flow are modeled by the local fractional calculus, the solutions can explain well experimental observations.

Originality/value
– Particular attention is paid throughout the paper to giving an intuitive grasp for fractional calculus. Most cited references are within last five years, catching the most frontier of the research. Some ideas on this review paper are first appeared.
Ensuring that older means wiser
Authors: Donoghue Kirstin 
Published: July 2014

Purpose
– The purpose of this study is to illustrate how important it is for older workers to keep up to date with technological and other developments – especially in industries experiencing major changes because of digitization. It also introduces the concept of IT certification and how this can help older workers to demonstrate their skills.

Design/methodology/approach
– The conundrum of unemployed graduates at a time of skill shortages and where this leaves older workers is discussed. The design and engineering industry has been used as a specific example and the kind of changes taking place has been illustrated.

Findings
– Reasons why managers should encourage staff to keep updating their skills and why certification is a good way to do this have been provided.

Social implications
– Reasons why employees who may be at the peak of their careers cannot afford to be complacent and to neglect to update their skills have been explained.

Originality/value
– This study discusses the impact of graduate unemployment and the need for training upon older workers and demonstrates the value of information technology certification for this age group.
Embodying entrepreneurial identity
Authors: Kašperová Eva , Kitching John 
Published: July 2014

Purpose– The purpose of this paper is to propose a novel conception of embodied entrepreneurial identity. Prior studies conceptualise identity primarily in terms of narrative or discourse. Critiquing the limited focus on linguistic practices, the authors build on the literature by highlighting the role of the non-linguistic. The implications for researching one particular group – entrepreneurs with impairments – are considered.Design/methodology/approach– Entrepreneurial identity is conceptualised as a unique constellation of concerns emergent from the embodied practices of agents committed to new venture creation and management. This new conception draws principally on the embodiment literature, Archer's identity framework and Goffman's ideas on the presentation of self, impression management and stigma.Findings– The entrepreneurial identity literature is underpinned by a number of problematic assumptions that limit understanding of the meaning, formation and influence of identity on action. The body is often an absent presence; it is presupposed, implicit or under-theorised as an influence on identity, producing a disembodied notion of the entrepreneur. Consequently, entrepreneurs are treated as an homogeneous group in terms of the embodied properties and powers, rather than as uniquely embodied individuals. Studies typically assume an able-bodied, as opposed to a differently abled, agent. Entrepreneurs with impairments are largely invisible in the literature as a result.Originality/value– The approach highlights the role of the body and embodied non-linguistic practices, such as movement, posture, gestures and facial expressions in the formation of identity. Recognising entrepreneurs as differently abled agents, possessing particular embodied properties and powers, is crucial for understanding identity and action.
Evaluating entrepreneurs’ perception of success
Authors: Fisher Rosemary , Maritz Alex , Lobo Antonio 
Published: July 2014

Purpose– The purpose of this paper is to evaluate the insights of founding entrepreneurs to understand what they consider as indicators for achieving entrepreneurial success. Using this information, the construct entrepreneurial success was conceptualized and a scale developed for use in subsequent testable models.Design/methodology/approach– Through qualitative research, the concept of entrepreneurial success was explored with ten founding entrepreneurs. Themes emerged from this enquiry process which informed the development of nine indicators. The indicators were subjected to exploratory and confirmatory factor analysis in a subsequent study, comprising 213 founding entrepreneurs. The result is an early attempt to produce a measurement scale for entrepreneurial success, as perceived by the entrepreneur.Findings– Entrepreneurs perceive entrepreneurial success as the presence of both personal and macro level variables. This research supports theorizing that suggests entrepreneurial success is a multidimensional construct best captured by more than financial and economic indicators.Research limitations/implications– This research is limited by the size of the sample, the qualitative context of the research that conceptualized the construct, and the self-report nature of the quantitative study that was used to develop the measurement scale.Practical implications– The development of a scale provides researchers with the opportunity to include entrepreneurial success, as perceived by entrepreneurs, in future testable models.Originality/value– This research responds to a call for investigation into entrepreneurial success. It is an early attempt to conceptualize a relevant construct and to develop a scale for use in empirical testing. It is distinguished by using the perceptions of successful entrepreneurs to develop the construct and to validate it.
Qualitative middle-range research in operations management
Authors: Soltani Ebrahim , K. Ahmed Pervaiz , Ying Liao Ying , U. Anosike Paschal 
Published: July 2014

Purpose– The purpose of this paper is to highlight the potential of a qualitative middle-range research approach to contribute to the advancement of operations management (OM) field.Design/methodology/approach–To better signify such contribution, it takes insight from Merton's (1968) notion of middle-range theory as a means to create pathways of propositions that link substantive concepts and practices of OM in both context-specific and context-free operational environments.Findings– The paper brings to the fore the argument that achieving the primary objective of filling the “theory-methods” void in OM can be achieved through adoption of a qualitative middle-range approach.Originality/value– The originality of this paper hinges on the premise that theory-oriented qualitative field research that is able to incorporate experiences of different stakeholders of the OM intervention is highly likely to benefit OM theory advancement as well as OM practice.
Translation rules of SysML state machine diagrams into CSP# toward formal model checking
Authors: Ando Takahiro , Yatsu Hirokazu , Kong Weiqiang , Hisazumi Kenji , Fukuda Akira 
Published: July 2014

Purpose
– This study aims to describe the behavior of blocks in the system under consideration using systems modeling language (SysML) state machine diagrams. In this paper, formalization and model checking for SysML state machine diagrams have been investigated.

Design/methodology/approach
– The work by Zhang and Liu (2010) proposed a formalization of SysML state machine diagrams in which the diagrams were translated into CSP# processes that could be verified by the state-of-the-art model checker PAT. In this paper, several modifications have been made and new rules have been added to the translation described in that work.

Findings
– First, three translation rules were modified, which apparently are inappropriately defined according to the SysML definition of state machine diagrams. Next, we add new translation rules for two components of the diagrams – junction and choice pseudostates – which have not been dealt with previously. Further, we are implementing the automatic translation system on a web-based model-driven development tool, which reflects on our translation rules.

Originality/value
– As the contribution of this work, more reasonable verification results for more general SysML state machine diagrams can be achieved.
Towards a flexible framework to support a generalized extension of XACML for spatio-temporal RBAC model with reasoning ability
Authors: Khanh Dang Tran , Thi Kim Le Tuyen , Tuan Dang Anh , Duc Son Van Ha 
Published: July 2014

Purpose– The paper aims to propose a flexible framework to support X-STROWL model. Extensible access control markup language (XACML) is an international standard used for access control in distributed systems. However, XACML and its existing extensions are not sufficient to fulfill sophisticated security requirements (e.g. access control based on user’s roles, context-aware authorizations and the ability of reasoning). Remarkably, X-STROWL, a generalized extension of XACML for spatiotemporal role-based access control (RBAC) model with reasoning ability, is a comprehensive model that overcomes these shortcomings. It mainly focuses on the architecture design as well as the implementation and evaluation of proposed framework and the comparison with others.Design/methodology/approach– Based on the concept of X-STROWL model, the paper reviewed a large amount of open sources implementing XACML with defined criteria and chose the most suitable framework to be extended for the implementation. The paper also presented a case study used to evaluate the research result.Findings– Holistic enterprise-ready application security framework – architecture framework (HERAS-AF) is chosen as the most suitable framework to be extended to implement X-STROWL model. Extending HERAS-AF to support spatiotemporal aspect and other contextual conditions as well as the way to integrate security in the access request, together with ability of reasoning for hierarchical roles, are striking features that make the proposed framework able to meet more sophisticated security requirements in comparison with others.Research limitations/implications– Due to the research content, the performance of proposed framework is not the focused issue of this work.Originality/value– The proposed framework is a crucial contribution of our research to provide a holistic, extensible and intelligent authorization decision engine.
From global aspirations to regional dominance: the case of Deutsche Telekom
Authors: Whalley Jason , Curwen Peter 
Published: July 2014

Purpose– This paper aims to investigates the argument that the financial case for continued internationalisation by telecommunication companies is unclear with respect to Deutsche Telekom, a leading international telecommunications company.Design/methodology/approach– The international footprint of Deutsche Telekom is mapped over the period 1995-2013 (inclusive). Data are drawn from the annual reports of Deutsche Telekom as well as its principal subsidiaries. After mapping the international footprint, the financial dimension of this internationalisation is investigated to determine whether there are financial returns from continued international expansion.Findings– The results demonstrate the extensive and complex nature of the international footprint of Deutsche Telekom. The company operates in 38 countries through a variety of lines of business, with its systems division being responsible for almost half of these countries. Although international markets now account for a majority of the company’s revenues, the lack of consistent data means that it is not clear whether the financial returns from internationalisation are positive.Research limitations/implications– The paper highlights the challenges of using annual reports as a source of data, as well as the difficulties of mapping the international operations of large multinationals like Deutsche Telekom.Originality/value– The paper uniquely seeks to relate the international footprint of Deutsche Telekom to its financial performance.
Evaluating social media privacy settings for personal and advertising purposes
Authors: Heyman Rob , De Wolf Ralf , Pierson Jo 
Published: July 2014

Purpose
– The purpose of this paper is to define two types of privacy, which are distinct but often reduced to each other. It also investigates which form of privacy is most prominent in privacy settings of online social networks (OSN). Privacy between users is different from privacy between a user and a third party. OSN, and to a lesser extent researchers, often reduce the former to the latter, which results in misleading users and public debate about privacy.

Design/methodology/approach
– The authors define two types of privacy that account for the difference between interpersonal and third-party disclosure. The first definition draws on symbolic interactionist accounts of privacy, wherein users are performing dramaturgically for an intended audience. Third-party privacy is based on the data that represent the user in data mining and knowledge discovery processes, which ultimately manipulate users into audience commodities. This typology was applied to the privacy settings of Facebook, LinkedIn and Twitter. The results are presented as a flowchart.

Findings
– The research indicates that users are granted more options in controlling their interpersonal information flow towards other users than third parties or service providers.

Research limitations/implications
– This distinction needs to be furthered empirically, by comparing user’s privacy expectations in both situations. On more theoretical grounds, this typology could also be linked to Habermas’ system and life-world.

Originality/value
– A typology has been provided to compare the relative autonomy users receive for settings that drive revenue and settings, which are independent from revenue.
Influence processes of implementation effectiveness in challenged information technology projects in Africa
Authors: Muganda Ochara Nixon , Kandiri John , Johnson Roy 
Published: July 2014

Purpose– This research reports on how influence processes (IP) impact on the implementation effectiveness of information technology (IT) projects. Drawing on an innovation perspective that elevate the interplay of factors related to innovations framing, innovations environment and innovation attributes, the study focused on IT projects based in Africa that are generally classified as “challenged” due to the conditions in the environment. The purpose of this paper is to assess how IP related to innovation framing, innovation environment and innovation attributes can be used to determine implementation effectiveness.Design/methodology/approach– Using a interpretive approach, a case study of institutions under a partnership that has been implementing various educational technologies in five African countries formed the sample. In all, 25 interviews of top-management representatives, project leaders and user representatives were conducted between 2012 and 2013 to assess the implementation effectiveness of these projects. Theoretical thematic analysis, based on a deductive approach, was employed to analyse the data.Findings– The results show that a majority of these development-oriented projects are “mandated failures” characterized by high framing, a bad internal environment and typically negative innovation attributes. That typically, the institutions engage symbolically in such innovations initiatives which are regarded as “show” projects. Such behaviour can be construed to be a pattern of cynical technology adoption linked to the appeasement of external stakeholders. In addition, participation in initiatives was largely symbolic and is considered as a mere demonstration of a modern organization that is technologically aware, yet the requisite innovation environment is lacking for effective appropriation of the technology. Third, mandated failures result in low morale of employees, who regard themselves as pawns in the process which make them grudgingly participate in the implementation process.Practical implications– These findings have implications for managing innovations in such challenged environments: the first proposition is that projects in challenged environment for innovation adopting organizations need to be considered as technology transfer projects. Second, the innovation environment and attributes can only be improved during implementation of the conditions related to absorptive capacity of the organization and the individual are addressed.Originality/value– The research reported in this paper, provides an empirical determination of the concept of implementation effectiveness by using three constructs of innovations framing, environment and attributes. On the basis of the empirical findings, an original contribution is claimed, especially in “challenged” IT project environments where the concept of success if fluid and outcomes uncertain.
Exploring the impact of empowering leadership on knowledge sharing, absorptive capacity and team performance in IT service
Authors: Lee Jungwoo , Lee Hyejung , Park Jun-Gi 
Published: July 2014

Purpose– The purpose of this paper is to empirically investigate the mechanism through which empowering leadership of a team leader might influence the team performance in IT service.Design/methodology/approach– The data of 315 individuals collected from 85 different IT projects through online survey is used to empirically test the hypotheses.Findings– The results confirm that team leader′s empowering leadership raises the level of knowledge sharing among team members and increase the absorptive capacity of the team, and lead to better team performance.Research limitations/implications– This research theoretically presented and demonstrated the middle- and long-term impacts of empowering leadership resulting from the development of absorptive capacity as the effects of knowledge sharing in an IT project team are produced through absorptive capacity.Practical implications– The findings indicate that more effective in increasing the performance of IT project teams can be to strengthen empowering leadership than to promote traditional charisma or directive leadership. Knowledge sharing at a team level has the direct effect of improving project performance by providing information and knowledge regarding the related project, but on the other hand it contributes to making stronger the path of associating absorptive capacity with project performance.Originality/value– The impact of empowering leaderships on team performance of IT project has received less research attention. Little prior research has carried out such an integrated analysis in IT service context. This study contributes to knowledge management research by identifying a key antecedent of knowledge sharing.
Effect of quarterly earnings announcement under different market conditions
Authors: Das Santu , Kanta Pattanayak Jamini , Pathak Pramod 
Published: July 2014

Purpose
– The main purpose of this research study is to investigate the impact of quarterly earnings announcements on stock price movement of the firms constituting the SENSEX under two different market conditions – booming followed by recessionary. Analysis of price effect of quarterly earnings announcements during the five-year period prior to trading suspension, which is also characterized by a booming market condition have been made. Similar analysis during the five-year period following the trading suspension and marked by recessionary market condition has also been carried out side by side.

Design/methodology/approach
– Event study methodology using daily returns and market model has been used for the purpose of analyzing the quarterly earnings announcement effects on the security prices of the firms. A sign test has also been used along with the event study.

Findings
– The study reveals that quarterly earnings announcement does not have statistically significant effect on stock returns during the booming as well as the recessionary market conditions. The impact of quarterly earnings announcements on stock price movement of firms constituting the SENSEX has been similar for both periods undertaken in the study.

Research limitations/implications
– The study has been undertaken using the firms listed in BSE SENSEX. The effect of the quarterly earnings announcement with reference to firms listed in other indices, if covered, may provide different sets of results.

Originality/value
– The paper identifies the informational value of quarterly earnings announcement of BSE-SENSEX.