bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Impact of Spatial Normalization for Functional Magnetic Resonance Imaging Data Analyses Revisited
Authors: Smith Jason F. , Hur Juyoen , Kaplan Claire M. , Shackman Alexander J. 
Published: February 2018

ABSTRACTSpatial normalization—the process of aligning anatomical or functional data acquired from different individuals to a common stereotaxic atlas—is routinely used in the vast majority of functional neuroimaging studies, with important consequences for scientific inference and reproducibility. Although several approaches exist, multi-step techniques that leverage the superior contrast and spatial resolution afforded by T1-weighted anatomical images to normalize echo planar imaging (EPI) functional data acquired from the same individuals (T1EPI) is now standard. Yet, recent work suggests that direct alignment of functional data to a T2*-weighted template without recourse to an anatomical image—an EPI only (EPIO) approach—enhances normalization precision. This counterintuitive claim is intriguing, suggesting that a change in standard practices may be warranted. Here, we re-visit these conclusions, extending prior work to encompass newly developed measures of normalization precision, accuracy, and ‘real-world’ statistical performance for the standard EPIO and T1EPI pipelines implemented in SPM12, a recently developed variant of the EPIO pipeline, and a novel T1EPI pipeline incorporating ‘best practice’ tools from multiple software packages. The multi-tool T1EPI pipeline was consistently the most precise, most accurate, and resulted in the largest t values at the group level, in some cases dramatically so. The three SPM-based pipelines exhibited more modest and variable differences in performance relative to each another, with the widely used T1EPI pipeline showing the second best overall precision and accuracy, and the recently developed EPIO pipeline generally showing the poorest overall performance. The results demonstrate that standard pipelines can be easily improved and we encourage researchers to invest the resources necessary to do so. The multi-tool pipeline presented here provides a framework for doing so. In addition, the novel performance metrics described here should prove useful for reporting and validating future methods for pre-processing functional neuroimaging data.
Trusting the local: opening up the script with response-able talk practices
Authors: Boyd Maureen P. , Tynan Elizabeth A. , Potteiger Lori 
Published: February 2018

PurposeThe purpose of this paper is to deflate some of the pressure-orienting teachers toward following a curricular script.Design/methodology/approachThe authors connect effective classroom teaching and learning practices to a dialogic instructional stance that values local resources and student perspectives and contributions. The authors argue that effective teachers have agency to make decisions about content and pacing adjustments (they call this agentive flow) and that they practice response-able talk. Response-able talk practices are responsive to what is happening in the classroom, responsibly nurture joint purposes and multiple perspectives, and cultivate longer exchanges of student exploratory talk. These talk practices are not easily scripted.FindingsThe authors show what these effective, local and dialogic instructional practices look like in a second-grade urban classroom.Practical implicationsThe authors call upon every teacher to robustly find their local ways of working.Originality/valueIn this paper, the authors argue that harnessing the local is an essential aspect of dialogic instruction and a critical component of a dialogic instructional stance.
Internal heat generation/or absorption phenomena in three-dimensional natural convection flow within enclosure filled with different working fluids
Authors: Hdhiri Najib , Ben Beya Brahim 
Published: February 2018

Purpose
The purpose of this study is to investigate the effects of heat generation or absorption on heat transfer and fluid flow within two- and three-dimensional enclosure for homogeneous medium filled with different metal liquid. Numerical results are presented and analyzed in terms of fluid flow, thermal field structures, as well as average Nusselt number profiles over a wide range of dimensionless quantities, Grashof number (Gr) (104 and 105), SQ (varied between −500 to 500) and Prandtl number (Pr = 0.015, 0.024 and 0.0321). The results indicate that when the conductive regime is established for a Grashof number Gr = 104, the 2D model is valid and predicts all three-dimensional results with negligible difference. This was not the case in the convective regime (Gr = 105) where the effect of the third direction becomes important, where a 2D-3D difference was seen with about 37 per cent. Also, in most cases, the authors find that the heat absorption phenomena have the opposite effect with respect to the heat generation.

Design/methodology/approach
Numerical results are presented and analyzed in terms of fluid flow, thermal field structures, as well as average Nusselt number profiles over a wide range of dimensionless quantities.

Findings
Grashof number (Gr) (104 and 105), SQ (varied between −500 to 500) and Prandtl number (Pr = 0.015, 0.024 and 0.0321).

Originality/value
The results indicate that when the conductive regime is established for a Grashof number Gr = 104, the 2D model is valid and predicts all three-dimensional results with negligible difference.
Two-dimensional simulation of fluid flow and forced convection heat transfer from a circular cylinder with control rods
Authors: Harimi Somayeh , Marjani Azam , Moradi Sadegh 
Published: February 2018

Purpose
This paper aims to study the fluid flow and forced convection heat transfer from an isothermal circular cylinder with control rods in the laminar unsteady flow regime.

Design/methodology/approach
The overset grid method was used for accurate simulation of the unsteady flows around different arrangements of the cylinders. Grid generation for overset grids was performed using a general orthogonal boundary fitted coordinate system. The method of solution was based on a finite volume discretization of the Navier-Stokes equations. Simulations were carried out for the Prandtl numbers of 0.7 and 7.0 with the Reynolds numbers ranging from 60 to 300.

Findings
The results indicate that the performance of multiple control rods depends strongly on the spacing ratio. Furthermore, in a manner similar to the flow patterns, four different thermal regimes were recognized based on the variations of mean Nusselt number versus G/D, as the thermal regimes follow the categories of flow regimes at different diameter ratios. However, for different Prandtl numbers, no single trend of heat transfer variation versus the spacing ratio exists for same regime.

Originality/value
Few studies have been conducted to investigate the heat transfer characteristics from control rods. The results of this study provide a comprehensive knowledge on the dynamical and thermal behavior of the flow around multiple cylinders.
Combined effects of the velocity and the aspect ratios on the bifurcation phenomena in a two-sided lid-driven cavity flow
Authors: Hammami Faicel , Ben-Cheikh Nader , Ben-Beya Brahim , Souayeh Basma 
Published: February 2018

Purpose
This paper aims to analyze the effect of aspect ratio A and aspect velocity ratio a on the bifurcation occurrence phenomena in lid-driven cavity by using finite volume method (FVM) and multigrid acceleration. This study has been performed for certain pertinent parameters; a wide range of the Reynolds number values has been adopted, and aspect ratios ranging from 0.25 to 1 and various velocity ratios from 0.25 to 0.825 have been considered in this investigation. Results show that the transition to the unsteady regime follows the classical scheme of Hopf bifurcation, giving rise to a perfectly periodic state. Flow periodicity has been verified through time history plots for the velocity component and phase-space trajectories as a function of Reynolds number. Velocity profile for special case of a square cavity (A = 1) was found to be in good agreement between current numerical results and published ones. Flow characteristics inside the cavity have been presented and discussed in terms of streamlines and vorticity contours at a fixed Reynolds number (Re = 5,000) for various aspect ratios (a = 0).

Design/methodology/approach
The numerical method is based on the FVM and multigrid acceleration.

Findings
Computations have been investigated for several Reynolds numbers and aspect ratios A (0.25, 0.5, 0.75, 0.825 and 1). Besides, various velocity ratios (a = 0.25, 0.5, 0.75 and 0.825) at fixed aspect ratios (A = 0.25, 0.5 and 0.75) were considered. It is observed that the transition to the unsteady regime follows the classical scheme of Hopf bifurcation, giving rise to a perfectly periodic state. Flow periodicity is verified through time history plots for velocity components and phase-space trajectories.

Originality/value
The bifurcations between steady and unsteady states are investigated.
Modeling of coal combustion in the CFB by the EDC model with the global reaction mechanism
Authors: Kang Zhizhong , Ding Shixing , Shuai Zhi-ang , Sun Baomin 
Published: February 2018

Purpose
This paper aims to shows the ability of the EDC model with a global reaction mechanism to describe reactions in the Eulerian simulation of a circulating fluidized bed (CFB).

Design/methodology/approach
The eddy dissipation concept (EDC) model is embedded in an Eulerian-Eulerian approach to simulate homogeneous reactions.

Findings
EDC_G is better than ED_FR in describing chemical reactions. The reaction of CH4 with O2 is faster than that of CO with O2, and NH3 is more liable to be converted than HCN. The combustion rate is higher than the Boudouard reaction rate of coal particles.N2O is mainly reduced by carbon, and NO is mainly converted by carbon into N2 and CO2.

Originality/value
The EDC model with a global reaction mechanism is embedded in a multi-fluid Eulerian approach to simulate the homogeneous reactions in the coal combustion in a CFB, including combustion of volatile gases, desulfurizing reactions and NOx reactions.
The drivers of corporate governance disclosure: the case of Nifty 500 Index
Authors: Katarachia Androniki , Pitoska Electra , Giannarakis Grigoris , Poutoglidou Elpida 
Published: February 2018

PurposeBased on agency theory, the purpose of this paper is to investigate the determinants on the dissemination level of corporate governance disclosure (CGD).Design/methodology/approachThe sample of the study incorporates listed companies in Nifty 500 Index for the period 2009-2014. The Governance Disclosure Score calculated by Bloomberg is used as a proxy for the dissemination level of corporate governance information. In total, eight explanatory variables are uses, namely, board’s size, number of board meetings, CEO duality, presence of women on the board, company’s size, financial performance, Tobin’s Q ratio and financial leverage.FindingsThe results of study suggest a need for improvement in CGDs by Indian companies, as they fail to comply the majority of the proposed disclosure items. Furthermore, it is revealed that the number of board director, the value of company, the financial leverage and the presence of women affect negatively the dissemination level of corporate governance information. While, the size of company is the only determinant that positively affects the extent of CGD.Practical implicationsThe results are valuable because they reveal the attributes that determines which companies needs less or extra monitoring by shareholders and investors regarding the applied corporate governance practices. In addition, the study can be valuable to policy makers responsible for the regulation of company’s accountability in relation to corporate governance practices.Originality/valueThe study extents previous studies by incorporating for the first time Bloomberg’s rating approach regarding the dissemination level of CGD in Indian context.
Mapping critical success factors in efficient court management: two case studies from India
Authors: Pattnaik Pinaki Nandan , Pandey Satyendra C. , Shukla Mahendra Kumar 
Published: February 2018

Purpose
The purpose of this study is to identify and develop an understanding of various success factors in implementing an efficient court management system by the court managers employed at the trial courts and high courts in India. Court management implies using a professional approach using managerial tools and techniques in managing courts.

Design/methodology/approach
This study is based on a case study with two Indian states demonstrating efficiency in judicial operation with the adoption of court management techniques. Semi-structured interviews with the court registry, court managers, document studies, court visits, along with observation are the main data sources.

Findings
It was observed that managerial practices of job autonomy, regular feedback, clear job expectations and support from the supervisor/reporting officer act as critical success factors for court management efficiency.

Originality/value
This paper adds empirical insight from the Indian viewpoint on existing literature concerning management of courts.
The accounting value relevance of earnings and book value: Tunisian banks and financial institutions
Authors: Ahmadi Ali , Bouri Abdelfettah 
Published: February 2018

Purpose
As an increasing number of business organizations around the world are engaged in the value relevance of accounting information, this study aims to assess the field of the accounting value relevance of book value and earnings in share prices of banks and financial institutions listed in the Tunisian stock exchange.

Design/methodology/approach
Using a sample of available banks and financial institutions listed in the Tunisian Stock Exchange from 2010 to 2015, this paper accommodates the documented accounting information in an emergent market context by using stock price of three months after year-end as a dependent variable. This study uses the panel regression technique on 24 banks and financial institutions during the study period.

Findings
The authors find that earnings and book value are statistically significantly associated with firm value. Also, using these variables together is positively related to the firm stock price share. Comparatively, these obtain evidence that book value is statistically more value-relevant than earning per share models; expectedly, the earnings explain a higher proportion of the stock price for the group of financial institutions than the group of banks.

Originality/value
A Web-based search is performed during the second quarter of 2016, locating the corporate websites of the sample firms, and the official site of the Datastream (worldscope) is identified. The sample period is 2010-2015 (144 firm-year observations).
Sectoral choices and wage differences among Nigerian public, private and self-employees
Authors: Guven-Lisaniler Fatma , Tuna Gulcay , Nwaka Ikechukwu Darlington 
Published: February 2018

Purpose
How does wage employment differ from self-employment in Nigeria? The purpose of this paper is to explore the determinants of participation and the resulting wage differentials with respect to individual employees in self-employment, public-wage employment and private-wage employment in the Nigerian labour market.

Design/methodology/approach
Using the most recent cross-sectional data from the general household survey (GHS) panel for 2012/2013 wave (Nigeria National Bureau of Statistics (NBS), 2012), this paper applies the multinomial logit estimation for the sectoral choice and selectivity-corrected wage equation where appropriate.

Findings
Consistent with other studies in Africa, the findings confirm that the Nigerian labour market is heterogeneous. Factors affecting sectoral choices differ greatly across the analysed sectors. Education, age and geopolitical zones are observed to be the major determinants of sectoral participation. On the basis of BFG estimates, the authors find evidence of downward bias only in the public sector wages that is due to the (Bourguignon, Fournier & Gurgand) allocation of individuals with better unobservable characteristics out of the public employment into the self-employment. Consequently, the human capital variables become no longer significant in the public wage equation after correcting for selectivity bias. However, education and gender are found to be significant determinants of wages in the private and self-employment sectors. The magnitude of the gender coefficient is more negative in self-employment, which may imply a possible gender wage gap in that sector. While the North-East, North-West and South-South zones are highly statistically significantly different from zero in the public sector, only the South-South and South-West zones appear to be significant in self-employment. Hence, such zonal variables are a reflection of differences in economic incentives in Nigeria.

Research limitations/implications
Given the unregulated and precarious nature of employment in self-employment, adequate policies that address gender bias orientations are suggested.

Originality/value
This paper is one of the first that addresses sectoral choices and wage differentials among public, private and self-employment using the most recent GHS data for Nigeria.
Visionary leadership and employee creativity in China
Authors: Zhou Lulu , Zhao Shuming , Tian Feng , Zhang Xufan , Chen Stephen 
Published: February 2018

PurposeThe purpose of this paper is to explore how visionary leadership influences employees’ creativity in R&D teams in China, and the role of employee knowledge sharing and goal orientation.Design/methodology/approachA survey was conducted on 331 professional technical engineers in R&D departments of 62 high-tech corporations in China. Hierarchical regression was used to model the relationships between visionary leadership style, employee goal orientations, knowledge sharing and employee creativity.FindingsThe results show that visionary leadership is positively associated with employee creativity in Chinese organizations and the relationship is positively mediated by employee knowledge sharing. Furthermore, employee “learning goal” orientation strengthens the relationship between visionary leadership and employee knowledge sharing, whereas employee “performance-avoid goal” orientation weakens the relationship between visionary leadership and employee knowledge sharing.Originality/valueThis study contributes to the literature on the effects of leadership on employee creativity by showing that, contrary to western organizations, where a less directive leadership style is generally recommended to enhance employee creativity, in Chinese organizations, visionary leadership is positively associated with employee creativity, but the effect is contingent on employees’ goal orientations and knowledge sharing.
Making a market for Mexican food in Australia
Authors: Sinclair John , Carr Barry 
Published: February 2018

Purpose
The purpose of this paper is to account for the remarkable proliferation of Mexican restaurants and tequila bars in contemporary urban Australia, in the absence of any geographical contiguity, historical connection or cultural proximity between Australia and Mexico.

Design/methodology/approach
The paper traces how the particularities of direct cultural contact, interpersonal networks and grass-roots entrepreneurism can open up new markets, and how the ground is, thus, prepared for subsequent large-scale international corporate entry to those markets. This research is based on interviews with key figures in the development of the Mexican food industry in Australia, interpreted in terms of the extant literature on cultural globalisation. The first-hand accounts of these participants have been interpreted in the light of available secondary sources and relevant theory.

Findings
The most striking theme to emerge in the study is the relative absence of Mexicans, or even Mexico-experienced Australians, in the making of a market for Mexican food in Australia. Rather, initially, Americans were prominent, as entrepreneurs and in forming a consumer market, while in later decades, entrepreneurs and consumers alike have been Australians whose experience of Mexican food has been formed in the United States, not Mexico. The role of hipster subculture and travel is seen as instrumental. Also of interest is the manner in which the personal experiences and interrelationships of the Americans and Australians have shaped the development of the Mexican food industry. This is not to ignore the much more recent participation of a new wave of immigrants from Mexico.

Research limitations/implications
While the scope of the study is national, the sharper focus is on the experience of Melbourne; it would be useful for future researchers to investigate other major cities, even if Melbourne has been the most pivotal of Australian cities in the history of Mexican food in Australia. The study has conceptual and theoretical implications for debates around cultural globalisation and “Americanisation”.

Originality/value
The paper provides a close-grained and suitably theorised account of how a particular consumer trend has become extended on a global basis, with particular attention to both individual experience and agency, and corporate activity.
Geography of corporate innovation
Authors: Ervits Irina 
Published: February 2018

Purpose
The purpose of this paper is to identify major developments in corporate innovation. The author focuses on the behavioral differences between MNEs from developed and emerging markets in the way they locate their R&D activities.

Design/methodology/approach
With the help of descriptive statistics, the paper identifies major trends in the global distribution of innovative activity. The novel source of patent statistics, Patent Cooperation Treaty (PCT) applications, is used as a proxy for innovative effort by leading MNEs. This paper is among the first attempts to analyze the global geography of innovation based on PCT statistics.

Findings
The analysis underscores differences in the patenting activities of MNEs from emerging and advanced markets. It confirms that innovative activity by major MNEs remains largely home-based, which contradicts the premise of the global nature of corporate innovation. At the same time, the growing importance of China as a research center attracts MNEs from a variety of developed markets. Emerging MNEs also file patent applications domestically. Most Chinese R&D subsidiaries of MNEs from advanced economies in our sample do not pursue technological specialization, as they produce patents in the same technological areas as the corporate headquarters or other subsidiaries.

Originality/value
A number of assumptions about the innovation geography of major MNEs were empirically tested. An attempt was made to fill the gaps in our understanding of innovation strategies pursued by MNEs in emerging markets. The author uses the concept of MNEs as meta-integrators to explain the observed dynamics. Its explanatory power is more convincing as applied to our data than the concept of national systems of innovation.