Exploring the impact of diversity climate on individual work role performance: A novel approach

Drawing upon theoretical lenses of social cognitive theory, this study explores whether, when, why, and how the helping behaviors of team leaders influence individual work role performance of team members (in terms of individual task proficiency, task adaptivity, and task proactivity) through self-efficacy of team members. The consequences of different types of help of leaders are uncovered in this study. By proposing a cross-level moderated mediation model and using multisource and multistage data from 303 team members in 39 work teams, autonomy-oriented help of leaders was found to have a differential effect on individual work role performance of members via the self-efficacy of the latter when controlling for dependency-oriented help of leaders. Moreover, the multilevel analysis of moderation uncovered that leader–member exchange relationship at the team level engendered a boundary condition for the mediating role of member self-efficacy in the relationship between autonomy-oriented help of leaders and individual work role performance of members in this model.

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Brain drain and brain gain in Russia: Analyzing international migration of researchers by discipline using Scopus bibliometric data 1996–2020

Scientometrics ◽

10.1007/s11192-021-04091-x ◽

2021 ◽

Author(s):

Alexander Subbotin ◽

Samin Aref

Keyword(s):

Brain Drain ◽

Policy Development ◽

Donor Country ◽

International Mobility ◽

Science System ◽

Migration Rates ◽

Net Migration ◽

Novel Approach ◽

Five Disciplines ◽

The Impact

AbstractWe study international mobility in academia, with a focus on the migration of published researchers to and from Russia. Using an exhaustive set of over 2.4 million Scopus publications, we analyze all researchers who have published with a Russian affiliation address in Scopus-indexed sources in 1996–2020. The migration of researchers is observed through the changes in their affiliation addresses, which altered their mode countries of affiliation across different years. While only 5.2% of these researchers were internationally mobile, they accounted for a substantial proportion of citations. Our estimates of net migration rates indicate that while Russia was a donor country in the late 1990s and early 2000s, it has experienced a relatively balanced circulation of researchers in more recent years. These findings suggest that the current trends in scholarly migration in Russia could be better framed as brain circulation, rather than as brain drain. Overall, researchers emigrating from Russia outnumbered and outperformed researchers immigrating to Russia. Our analysis on the subject categories of publication venues shows that in the past 25 years, Russia has, overall, suffered a net loss in most disciplines, and most notably in the five disciplines of neuroscience, decision sciences, mathematics, biochemistry, and pharmacology. We demonstrate the robustness of our main findings under random exclusion of data and changes in numeric parameters. Our substantive results shed light on new aspects of international mobility in academia, and on the impact of this mobility on a national science system, which have direct implications for policy development. Methodologically, our novel approach to handling big data can be adopted as a framework of analysis for studying scholarly migration in other countries.

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Analysis of High-Friction Surface Texture with Respect to Friction and Wear

Coatings ◽

10.3390/coatings11070758 ◽

2021 ◽

Vol 11 (7) ◽

pp. 758

Author(s):

Cibi Pranav ◽

Minh-Tan Do ◽

Yi-Chang Tsai

Keyword(s):

Friction Coefficient ◽

Surface Texture ◽

Safety Concern ◽

Future Research ◽

Scanning System ◽

Novel Approach ◽

Texture Parameters ◽

Aggregate Loss ◽

Friction Surfaces ◽

The Impact

High Friction Surfaces (HFS) are applied to increase friction capacity on critical roadway sections, such as horizontal curves. HFS friction deterioration on these sections is a safety concern. This study deals with characterization of the aggregate loss, one of the main failure mechanisms of HFS, using texture parameters to study its relationship with friction. Tests are conducted on selected HFS spots with different aggregate loss severity levels at the National Center for Asphalt Technology (NCAT) Test Track. Friction tests are performed using a Dynamic Friction Tester (DFT). The surface texture is measured by means of a high-resolution 3D pavement scanning system (0.025 mm vertical resolution). Texture data are processed and analyzed by means of the MountainsMap software. The correlations between the DFT friction coefficient and the texture parameters confirm the impact of change in aggregates’ characteristics (including height, shape, and material volume) on friction. A novel approach to detect the HFS friction coefficient transition based on aggregate loss, inspired by previous works on the tribology of coatings, is proposed. Using the proposed approach, preliminary outcomes show it is possible to observe the rapid friction coefficient transition, similar to observations at NCAT. Perspectives for future research are presented and discussed.

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Reservoir-Induced Land Deformation: Case Study from the Grand Ethiopian Renaissance Dam

Remote Sensing ◽

10.3390/rs13050874 ◽

2021 ◽

Vol 13 (5) ◽

pp. 874

Author(s):

Yu Chen ◽

Mohamed Ahmed ◽

Natthachet Tangdamrongsub ◽

Dorina Murgulet

Keyword(s):

Land Surface ◽

Large Scale ◽

Surface Deformation ◽

Vertical Displacement ◽

Nile River ◽

Reservoir Volume ◽

Novel Approach ◽

Land Deformation ◽

Large Scale Land ◽

The Impact

The Nile River stretches from south to north throughout the Nile River Basin (NRB) in Northeast Africa. Ethiopia, where the Blue Nile originates, has begun the construction of the Grand Ethiopian Renaissance Dam (GERD), which will be used to generate electricity. However, the impact of the GERD on land deformation caused by significant water relocation has not been rigorously considered in the scientific research. In this study, we develop a novel approach for predicting large-scale land deformation induced by the construction of the GERD reservoir. We also investigate the limitations of using the Gravity Recovery and Climate Experiment Follow On (GRACE-FO) mission to detect GERD-induced land deformation. We simulated three land deformation scenarios related to filling the expected reservoir volume, 70 km3, using 5-, 10-, and 15-year filling scenarios. The results indicated: (i) trends in downward vertical displacement estimated at −17.79 ± 0.02, −8.90 ± 0.09, and −5.94 ± 0.05 mm/year, for the 5-, 10-, and 15-year filling scenarios, respectively; (ii) the western (eastern) parts of the GERD reservoir are estimated to move toward the reservoir’s center by +0.98 ± 0.01 (−0.98 ± 0.01), +0.48 ± 0.00 (−0.48 ± 0.00), and +0.33 ± 0.00 (−0.33 ± 0.00) mm/year, under the 5-, 10- and 15-year filling strategies, respectively; (iii) the northern part of the GERD reservoir is moving southward by +1.28 ± 0.02, +0.64 ± 0.01, and +0.43 ± 0.00 mm/year, while the southern part is moving northward by −3.75 ± 0.04, −1.87 ± 0.02, and −1.25 ± 0.01 mm/year, during the three examined scenarios, respectively; and (iv) the GRACE-FO mission can only detect 15% of the large-scale land deformation produced by the GERD reservoir. Methods and results demonstrated in this study provide insights into possible impacts of reservoir impoundment on land surface deformation, which can be adopted into the GERD project or similar future dam construction plans.

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Racial dissimilarity and diversity climate effect organizational identification

Equality Diversity and Inclusion An International Journal ◽

10.1108/edi-09-2015-0072 ◽

2016 ◽

Vol 35 (5/6) ◽

pp. 314-327 ◽

Cited By ~ 5

Author(s):

Brooklyn Cole ◽

Raymond J. Jones ◽

Lisa M. Russell

Keyword(s):

Organizational Identification ◽

Turnover Intentions ◽

Ordinary Least Squares ◽

Important Variable ◽

Hierarchical Regression ◽

Diversity Climate ◽

Climate Effect ◽

Content Type ◽

The Impact ◽

The Relationship

Purpose The purpose of this paper is to empirically examine the relationship between psychological diversity climate (PDC) and organizational identification (OID) when influenced by racial dissimilarity between the subordinate and supervisor. Design/methodology/approach Ordinary least squares hierarchical regression analysis was run for hypotheses testing. Findings Three of the four hypothesized relationships were supported. Support was found for the direct relationship between PDC and OID. The moderator race was significant thus also supported. The moderator of dissimilarity was not supported. Finally the three-way interaction with race and dissimilarity was supported. Practical implications OID is an important variable for overall organizational success. OID influences a wealth of organizationally relevant outcomes including turnover intentions. Considering higher turnover exists for minority employees, understanding how diversity climate perceptions vary by employee race and therefore impact OID differently, helps managers when making decisions about various initiatives. Originality/value This study is the first the authors know of to investigate the impact of dissimilarity on the PDC-OID relationship.

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Towards a better understanding of the origins, chemical composition and aging of oxygenated organic aerosols: case study of a Mediterranean industrialized environment, Marseille

Atmospheric Chemistry and Physics ◽

10.5194/acp-13-7875-2013 ◽

2013 ◽

Vol 13 (15) ◽

pp. 7875-7894 ◽

Cited By ~ 54

Author(s):

I. El Haddad ◽

B. D'Anna ◽

B. Temime-Roussel ◽

M. Nicolas ◽

A. Boreave ◽

...

Keyword(s):

Chemical Composition ◽

Organic Aerosols ◽

Industrial Emissions ◽

Aerosol Mass Spectrometer ◽

Statistical Confidence ◽

Aerosol Mass ◽

Novel Approach ◽

Organic Markers ◽

The Impact ◽

First Time

Abstract. As part of the FORMES summer 2008 experiment, an Aerodyne compact time-of-flight aerosol mass spectrometer (cToF-AMS) was deployed at an urban background site in Marseille to investigate the sources and aging of organic aerosols (OA). France's second largest city and the largest port in the Mediterranean, Marseille, provides a locale that is influenced by significant urban industrialized emissions and an active photochemistry with very high ozone concentrations. Particle mass spectra were analyzed by positive matrix factorization (PMF2) and the results were in very good agreement with previous apportionments obtained using a chemical mass balance (CMB) approach coupled to organic markers and metals (El Haddad et al., 2011a). AMS/PMF2 was able to identify for the first time, to the best of our knowledge, the organic aerosol emitted by industrial processes. Even with significant industries in the region, industrial OA was estimated to contribute only ~ 5% of the total OA mass. Both source apportionment techniques suggest that oxygenated OA (OOA) constitutes the major fraction, contributing ~ 80% of OA mass. A novel approach combining AMS/PMF2 data with 14C measurements was applied to identify and quantify the fossil and non-fossil precursors of this fraction and to explicitly assess the related uncertainties. Results show with high statistical confidence that, despite extensive urban and industrial emissions, OOA is overwhelmingly non-fossil, formed via the oxidation of biogenic precursors, including monoterpenes. AMS/PMF2 results strongly suggest that the variability observed in the OOA chemical composition is mainly driven in our case by the aerosol photochemical age. This paper presents the impact of photochemistry on the increase of OOA oxygenation levels, formation of humic-like substances (HULIS) and the evolution of α-pinene SOA (secondary OA) components.

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A New Perspective for Understanding School Managers’ Roles: The Impact of Principals’ Boundary Activities on the Effectiveness of School Management Teams

Teachers College Record ◽

10.1177/016146811812000301 ◽

2018 ◽

Vol 120 (3) ◽

pp. 1-40

Author(s):

Pascale Benoliel ◽

Anit Somech

Keyword(s):

Public Schools ◽

School Leadership ◽

Structural Equation ◽

Equation Model ◽

Management Teams ◽

Role Performance ◽

New Perspective ◽

Mean Differences ◽

The Impact

Background/Context Increasingly, educational leadership research has stressed that leadership is not solely embedded in formal roles but often emerges from relationships between individuals. Senior management teams (SMTs) are an important expression of a formal management structure based on the principle of distributed leadership. Such structures may require a reconceptualization of school leadership and the role of the principal in such a way as to better meet new challenges and enable principals to manage SMTs more effectively. Accordingly, it is proposed that to improve effectiveness, principals engage in boundary activities, the principals’ internal activities directed toward the SMT aimed at dealing with internal team matters and the principals’ external activities directed toward external agents in the team's focal environment to acquire resources and protect the team. Purpose/Objective The present study attempts to advance a theoretical model of principals’ internal and external activities toward their SMTs. This study's purpose is twofold: First, the study tries to determine which of the internal and external activities principals engage in more frequently and less frequently and to what extent. Second, the study attempts to determine how these activities are related to the SMT effectiveness outcomes: in-role performance and innovation. Taking on a distributive perspective to school leadership, our goal is to extend our knowledge about the activities that might facilitate SMT effectiveness, by highlighting the principal boundary activities as fundamental. Research Design Quantitative study. Data Collection and Analysis Data were collected from two sources to minimize problems associated with same source bias: 92 SMTs and their principals from 92 public schools in Israel. Principals evaluated the SMTs’ effectiveness through validated surveys of team in-role performance and team innovation, and SMT members evaluated the internal and external activities of the principal. Findings/Results ANOVA analyses indicate significant mean differences between the principal's internal and external activities. Results from Structural Equation Model indicate that internal activities were related to SMT performance, whereas external activities were related to SMT innovation. Conclusions/Recommendations Principals who manage both the internal SMT dynamic by promoting SMT identity and building team trust, while also promoting a common mission, serve the role of coordinator between SMT members and constituencies external to the SMT, enhancing SMT effectiveness. It may be, then, that studying new models of school leadership and management, including the relationship of the principal and the SMT, may deepen our understanding of the increasingly complex role of principals today.

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More Than Medals

10.7591/cornell/9781501753084.001.0001 ◽

2021 ◽

Author(s):

Dennis J. Frost

Keyword(s):

Japanese Society ◽

Sporting Events ◽

Individuals With Disabilities ◽

Postwar Japan ◽

Disability Sports ◽

Southern Japan ◽

Provincial City ◽

Novel Approach ◽

The Impact ◽

Historical Nature

How does a small provincial city in southern Japan become the site of a world-famous wheelchair marathon that has been attracting the best international athletes since 1981? This book answers the question and addresses the histories of individuals, institutions, and events — the 1964 Paralympics, the FESPIC Games, the Ōita International Wheelchair Marathon, the Nagano Winter Paralympics, and the 2021 Tokyo Summer Games that played important roles in the development of disability sports in Japan. Sporting events in the postwar era, the book shows, have repeatedly served as forums for addressing the concerns of individuals with disabilities. The book provides new insights on the cultural and historical nature of disability and demonstrates how sporting events have challenged some stigmas associated with disability, while reinforcing or generating others. The book analyzes institutional materials and uses close readings of media, biographical sources, and interviews with Japanese athletes to highlight the profound — though often ambiguous — ways in which sports have shaped how postwar Japan has perceived and addressed disability. The book's novel approach highlights the importance of the Paralympics and the impact that disability sports have had on Japanese society.

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Wetting transition of ionic liquids at metal surfaces: A computational molecular approach to electronic screening using a virtual Thomas-Fermi fluid

10.21203/rs.3.rs-83084/v1 ◽

2020 ◽

Author(s):

Alexander Schlaich ◽

Dongliang Jin ◽

Lyderic Bocquet ◽

Benoit Coasne

Keyword(s):

Ionic Liquids ◽

Energy Storage ◽

Electrostatic Interactions ◽

Debye Length ◽

Wetting Transition ◽

Molecular Fluids ◽

Thomas Fermi ◽

Electronic Screening ◽

Novel Approach ◽

The Impact

Abstract Of particular relevance to energy storage, electrochemistry and catalysis, ionic and dipolar liquids display a wealth of unexpected fundamental behaviors – in particular in confinement. Beyond now well-documented adsorption, overscreening and crowding effects1,2,3, recent experiments have highlighted novel phenomena such as unconventional screening4 and the impact of the electronic nature – metallic versus insulating – of the confining surface on wetting/phase transitions5,6. Such behaviors, which challenge existing theoretical and numerical modeling frameworks, point to the need for new powerful tools to embrace the properties of confined ionic/dipolar liquids. Here, we introduce a novel atom-scale approach which allows for a versatile description of electronic screening while capturing all molecular aspects inherent to molecular fluids in nanoconfined/interfacial environments. While state of the art molecular simulation strategies only consider perfect metal or insulator surfaces, we build on the Thomas-Fermi formalism for electronic screening to develop an effective approach that allows dealing with any imperfect metal between these asymptotes. The core of our approach is to describe electrostatic interactions within the metal through the behavior of a `virtual' Thomas-Fermi fluid of charged particles, whose Debye length sets the Thomas-Fermi screening length λ in the metal. This easy-to-implement molecular method captures the electrostatic interaction decay upon varying λ from insulator to perfect metal conditions, while describing very accurately the capacitance behavior – and hence the electrochemical properties – of the metallic confining medium. By applying this strategy to a nanoconfined ionic liquid, we demonstrate an unprecedented wetting transition upon switching the confining medium from insulating to metallic. This novel approach provides a powerful framework to predict the unsual behavior of ionic liquids, in particular inside nanoporous metallic structures, with direct applications for energy storage and electrochemistry.

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Novel approach to delivering pro-environmental messages significantly shifts norms and motivation, but children are not more effective spokespeople than adults

PLoS ONE ◽

10.1371/journal.pone.0255457 ◽

2021 ◽

Vol 16 (9) ◽

pp. e0255457

Author(s):

Cynthia McPherson Frantz ◽

John Petersen ◽

Kathryn Lucaites

Keyword(s):

Cultural Change ◽

Local Population ◽

National Sample ◽

Message Content ◽

Novel Approach ◽

Significant Difference ◽

Personal Connections ◽

Norm Perception ◽

Non Local ◽

The Impact

Three studies provided initial laboratory tests of the effectiveness of a novel form of community-based environmental messaging intended to be deployed on public digital signs. In all studies, adult participants watched a slideshow of “Community Voices,” a display that combines community images and quotes to celebrate and empower pro-environmental and pro-community thought and action. In addition to assessing the general efficacy of the approach, a central goal was to assess the impact of alternative messengers by comparing identical text associated with either adult or child messengers (Studies 1, 2, and 3). We also assessed the impact of alternative framing of the message itself by comparing: injunctive vs non-injunctive wording (Study 1), political vs non-political content (Study 1), and future vs. present-oriented framing (Study 2). Studies 1 and 2 were conducted on a national sample. In addition, to assess the impact of local vs. non-local messengers, Study 3 compared the response of a non-local sample to a local population in which subjects had personal connections with the people and places featured in the message content. Exposure to Community Voices messages resulted in significant increases in social norm perception, concern about environmental issues, commitment to action, and optimism, suggesting that this approach to messaging is potentially valuable for stimulating cultural change. However, messages attributed to child messengers were generally not more effective, and in some cases were less effective than the same message attributed to adults. We also found no significant difference in the impact of the alternative message frames studied.

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