bluuebunny/crossref_metadata_2025_split huggingface dataset:
Data assimilation of thermospheric mass density
Authors: Matsuo Tomoko , Fedrizzi Mariangel , Fuller‐Rowell Timothy J. , Codrescu Mihail V. 
Published: April 2012

Accurate modeling of thermospheric mass density variation is of foremost importance to low Earth orbital prediction. The accuracy of empirical neutral density models based on global indices for solar and geomagnetic activity is inherently limited by the resolution of these indices. Assimilative modeling is appealing, as it provides a means to systematically identify and correct the inconsistencies between model specification and observations. In this paper we present a practical assimilative mass density specification methodology that optimally combines the mass density prediction by the Coupled‐Thermosphere‐Ionosphere‐Plasmasphere‐electrodynamics (CTIPe) model with in‐situ observations of neutral mass density by research satellites such as Challenging Minisatellite Payload (CHAMP) and Gravity Recovery and Climate Experiment (GRACE). The methodology yields an analysis of the global density according to Bayes's rule under the assumption of Gaussian prior and observation error distribution (namely, by using the Optimal Interpolation or Kalman Filter update formula). To make best use of under‐sampled global neutral mass density observations, the background (prior) error covariance is built on the principal component analysis to represent the long‐distance correlation effectively, with an adaptive capability by using the maximum‐likelihood method. The neutral mass density specification at 400 km can be improved up to 50% beyond what has been attained by the CTIPe by assimilating CHAMP and GRACE density observations.
Geneious Basic: An integrated and extendable desktop software platform for the organization and analysis of sequence data
Authors: Kearse Matthew , Moir Richard , Wilson Amy , Stones-Havas Steven , Cheung Matthew , Sturrock Shane , Buxton Simon , Cooper Alex , Markowitz Sidney , Duran Chris , Thierer Tobias , Ashton Bruce , Meintjes Peter , Drummond Alexei 
Published: April 2012

Abstract
Summary: The two main functions of bioinformatics are the organization and analysis of biological data using computational resources. Geneious Basic has been designed to be an easy-to-use and flexible desktop software application framework for the organization and analysis of biological data, with a focus on molecular sequences and related data types. It integrates numerous industry-standard discovery analysis tools, with interactive visualizations to generate publication-ready images. One key contribution to researchers in the life sciences is the Geneious public application programming interface (API) that affords the ability to leverage the existing framework of the Geneious Basic software platform for virtually unlimited extension and customization. The result is an increase in the speed and quality of development of computation tools for the life sciences, due to the functionality and graphical user interface available to the developer through the public API. Geneious Basic represents an ideal platform for the bioinformatics community to leverage existing components and to integrate their own specific requirements for the discovery, analysis and visualization of biological data.
Availability and implementation: Binaries and public API freely available for download at http://www.geneious.com/basic, implemented in Java and supported on Linux, Apple OSX and MS Windows. The software is also available from the Bio-Linux package repository at http://nebc.nerc.ac.uk/news/geneiousonbl.
Contact: peter@biomatters.com
Speeding up tandem mass spectral identification using indexes
Authors: Liu Xiaowen , Mammana Alessandro , Bafna Vineet 
Published: April 2012

Abstract
Motivation: Tandem mass spectrometry (MS/MS) has been routinely used in proteomics studies. Post-translational modification (PTM) identification is a challenging problem in tandem mass spectral analysis.
Results: In this article, we define two scoring functions for identifying peptides/proteins with PTMs from MS/MS spectra: match scores and diagonal scores, as well as two spectral identification problems based on the two scores. We propose several index-based algorithms for the two problems. Both theoretical and experimental analyses show that the index-based algorithms significantly improve on speed when compared with existing algorithms.
Contact: xil018@cs.ucsd.edu
DAVID-WS: a stateful web service to facilitate gene/protein list analysis
Authors: Jiao Xiaoli , Sherman Brad T. , Huang Da Wei , Stephens Robert , Baseler Michael W. , Lane H. Clifford , Lempicki Richard A. 
Published: April 2012

Abstract
Summary: The database for annotation, visualization and integrated discovery (DAVID), which can be freely accessed at http://david.abcc.ncifcrf.gov/, is a web-based online bioinformatics resource that aims to provide tools for the functional interpretation of large lists of genes/proteins. It has been used by researchers from more than 5000 institutes worldwide, with a daily submission rate of ∼1200 gene lists from ∼400 unique researchers, and has been cited by more than 6000 scientific publications. However, the current web interface does not support programmatic access to DAVID, and the uniform resource locator (URL)-based application programming interface (API) has a limit on URL size and is stateless in nature as it uses URL request and response messages to communicate with the server, without keeping any state-related details. DAVID-WS (web service) has been developed to automate user tasks by providing stateful web services to access DAVID programmatically without the need for human interactions.
Availability: The web service and sample clients (written in Java, Perl, Python and Matlab) are made freely available under the DAVID License at http://david.abcc.ncifcrf.gov/content.jsp?file=WS.html.
Contact: xiaoli.jiao@nih.gov; rlempicki@nih.gov
Genetic Evidence for the Reduction of Brassinosteroid Levels by a BAHD Acyltransferase-Like Protein in Arabidopsis
Authors: Roh Hyungmin , Jeong Cheol Woong , Fujioka Shozo , Kim Youn Kyung , Lee Sookjin , Ahn Ji Hoon , Do Choi Yang , Lee Jong Seob 
Published: April 2012

Abstract
Brassinosteroids (BRs) are a group of steroidal hormones involved in plant development. Although the BR biosynthesis pathways are well characterized, the BR inactivation process, which contributes to BR homeostasis, is less understood. Here, we show that a member of the BAHD (for benzylalcohol O-acetyltransferase, anthocyanin O-hydroxycinnamoyltransferase, anthranilate N-hydroxycinnamoyl/benzoyltransferase, and deacetylvindoline 4-O-acetyltransferase) acyltransferase family may play a role in BR homeostasis in Arabidopsis (Arabidopsis thaliana). We isolated two gain-of-function mutants, brassinosteroid inactivator1-1Dominant (bia1-1D) and bia1-2D, in which a novel BAHD acyltransferase-like protein was transcriptionally activated. Both mutants exhibited dwarfism, reduced male fertility, and deetiolation in darkness, which are typical phenotypes of plants defective in BR biosynthesis. Exogenous BR treatment rescued the phenotypes of the bia1-1D mutant. Endogenous levels of BRs were reduced in the bia1-1D mutant, demonstrating that BIA1 regulates endogenous BR levels. When grown in darkness, the bia1 loss-of-function mutant showed a longer hypocotyl phenotype and was more responsive to exogenous BR treatment than the wild-type plant. BIA1 expression was predominantly observed in the root, where low levels of BRs were detected. These results indicate that the BAHD acyltransferase family member encoded by BIA1 plays a role in controlling BR levels, particularly in the root and hypocotyl in darkness. Taken together, our study provides new insights into a mechanism that maintains BR homeostasis in Arabidopsis, likely via acyl conjugation of BRs.
The impact of knowledge governance on knowledge sharing
Authors: Cao Yong , Xiang Yang 
Published: April 2012

PurposeKnowledge governance is an organizational mechanism that formally and informally defines how the firm manages the activities related knowledge, thus it has a significant influence on knowledge sharing. The purpose of this study is to analyze the impact of knowledge governance, including formal and informal knowledge governance, on knowledge sharing. Further, the authors examine the mediating role of guanxi effect between knowledge governance and knowledge sharing.Design/methodology/approachBased upon their research, the authors chose to use the logic deduction approach for hypotheses and analytical frameworks. Questionnaires and interviews were used to collect data from 339 employees in 39 Chinese strategic emerging firms. Finally, regression analysis and structure equation models by SPSS AMOS were used for data analysis and hypotheses testing.FindingsThis study points to the impact that knowledge governance bears upon knowledge sharing based on the mediation of guanxi effect in China. The results first show that knowledge governance, including formal and informal knowledge governance, plays a key role in knowledge sharing; second, that guanxi effect partly mediates between informal knowledge governance and knowledge sharing; thirdly, guanxi effect plays a whole mediating role between formal knowledge governance and knowledge sharing.Research limitations/implicationsThis study presents a framework for Chinese strategic emerging industries to better comprehend the impact of knowledge governance upon knowledge sharing and thus enhance their firm's guanxi networks to maximize economic and social benefit. The managerial implications are that firms should strengthen knowledge governance to promote employee knowledge sharing and infuse a more harmonious atmosphere to strengthen the positive effects of guanxi among employees. Ultimately, Chinese firms must consider and encourage the benefits of the guanxi effect. This study only investigated 339 employees in 39 organizations located in central China. It is limited by employees' cognition. In further research, the authors will identify more samples and develop a large‐scale questionnaire to explore these impacts in more detail and thus enhance their current research.Originality/valueIt is the first attempt in China to systematically investigate the impact of knowledge governance on knowledge sharing based on the mediation of guanxi effect. The results provide a theoretical and methodological contribution to the study of knowledge governance and can thus improve managerial practice in an era of knowledge‐based economies.
CEO experience as micro‐level origin of dynamic capabilities
Authors: Rodenbach Marc , Brettel Malte 
Published: April 2012

PurposeThe aim of this paper is to corroborate with empirical validations the theoretical considerations about the influence of chief executive officers (CEOs) and their experience as micro‐level origin of dynamic capabilities in organisations.Design/methodology/approachThe paper empirically analyses the impact of CEO experience (CEO firm experience, CEO age, CEO international experience, CEO functional experience) as a micro‐level origin of dynamic marketing and research and development (R&D) capabilities.FindingsThe results show that CEO experience influences dynamic capabilities and corroborate the theoretical considerations about the influence of micro‐level origins, i.e. CEO firm experience and CEO age influence the development of dynamic capabilities, dependent on environmental conditions.Research limitations/implicationsThe findings encourage more research on the important role of micro‐level origins of dynamic capabilities. With a view to the theoretical background, it would be useful to know whether CEO experience at the individual level and its impact on dynamic capabilities can be transferred to the organisational level.Practical implicationsCEO experience can significantly improve or downgrade dynamic marketing and R&D capabilities, e.g. organisations in turbulent environments have an advantage when their CEO is young, whereas organisations in less turbulent environments benefit from an older CEO.Originality/valueThe paper helps build a better understanding of the role of CEOs and their experience as a micro‐level origin of dynamic capabilities in organisations. It extends the suggestion that micro‐level origins are important in the development of dynamic capabilities.
Measuring HRM and organisational performance: concepts, issues, and framework
Authors: Singh Satwinder , Darwish Tamer K. , Costa Ana Cristina , Anderson Neil 
Published: April 2012

PurposeThe purpose of this paper is to contribute to the understanding of the HRM and organisational performance (OP) nexus by drawing attention to the complex interplay of internal and external factors affecting OP, and to further provide an integrated framework for the testing of this nexus.Design/methodology/approachRelevant literature is reviewed and assessed critically. A theoretical framework is provided with the objective to measure the HRM‐OP nexus.FindingsWhilst the majority of the extant literature on HRM has focused mainly on internal factors, the authors suggest that the domain of the internal factors considered thus far needs to be widened and external factors need to be acknowledged explicitly. They provide a schematic model portraying the intricate nature of internal and external factors. They subsequently provide an integrated framework of factors in order to measure HRM practices' effects on OP.Research limitations/implicationsThe suggested framework is theoretical pending empirical testing. The framework can serve as a template for future research.Practical implicationsThe framework can be put into a universally testable template for use by researchers.Originality/valueThe paper, for the first time, schematically brings together and discusses the elements affecting the HRM‐OP nexus, and further provides a framework in the form of a set of exhaustive factors – which will facilitate this nexus being put to empirical test.
Influencing foreign subsidiary decisions through headquarter performance measurement systems
Authors: Mahlendorf Matthias D. , Rehring Jochen , Schäffer Utz , Wyszomirski Elmar 
Published: April 2012

PurposeThis paper aims to investigate the ability of performance measurement systems (PMS) that were implemented by headquarters at foreign subsidiaries to influence decisions made by the subsidiary. This is important because PMS are important control mechanisms in the relationship between headquarters and subsidiaries within multinational firms.Design/methodology/approachAcknowledging that controlling foreign subsidiaries is particularly challenging when they are geographically distant to headquarters, the authors collect survey‐based data from Chinese subsidiaries of multinational firms. They develop several hypotheses which are tested on a sample of 148 subsidiaries using multiple regression analysis.FindingsThe results suggest that the influence of headquarter‐designed PMS on subsidiary decisions is higher when the compensation of subsidiary management is linked to PMS, when additional formal control is enforced, when PMS are affected by external events, when PMS are comprehensive, and when subsidiaries are embedded into the local business environment. Also, the authors find a negative interaction effect between comprehensive PMS and the extent to which PMS are affected by external events on the decision‐influence of PMS.Research limitations/implicationsLimitations arise from the study setting in China. As management accounting research originates from and has mostly focused on Western countries, it remains somewhat unclear whether the constructs and instruments used in this study are fully transferable to China, despite the statistical and conceptual remedies that were applied.Originality/valueThe study offers new insights into the role of PMS in multinational companies. It extends earlier research by offering empirical evidence from one of the most important emerging economies. As such, the results are relevant for almost every global firm using PMS to control foreign subsidiaries.
“Every man for himself”
Authors: Richards James , Chillas Shiona , Marks Abigail 
Published: April 2012

PurposeThis paper aims to examine the practice of teamwork in an under‐researched, yet growing industrial setting.Design/methodology/approachLongitudinal ethnographic‐styled methods of data collection were used and data was examined using the Team Dimensions Model.FindingsThe findings suggest the Team Dimensions Model, with the addition of a customer service perspective, is of use for identifying managerial objectives and organisational outcomes of teamwork. However, this does not suggest that teamworking is easy to implement in the hospitality setting.Research limitations/implicationsThe findings were obtained using unobtrusive participatory and observational methods and based on a single company.Practical implicationsThe paper allows management practitioners to reflect on realities of implementing teamworking under a corporate customer service initiative.Originality/valueThe paper takes an existing theory on teamworking and develops the theory in an under‐researched and growing industrial sector.
“Virtual teams are literally and metaphorically invisible”
Authors: Au Yee , Marks Abigail 
Published: April 2012

PurposeThis paper aims to examine the impact of perceived cultural differences in forging identity in virtual teams. Whilst there has been a great deal of research on team identification, little has been written about the influences of the virtual context on this process.Design/methodology/approachThe study reported in this paper was conducted in four companies and seven virtual teams operating across the UK, the USA, Brazil, Singapore, Malaysia and Myanmar.FindingsThe results show that perceived differences in national cultures and the way people work within the cultures has a significant impact on identification in virtual teams. This can lead to unhealthy racial and national stereotypes, which cause conflict between team members. The findings of this study highlight the importance of encouraging team members to value and understand differences and that it is necessary to promote a common goal to foster identification in international virtual teams.Originality/valueThe research provides a critical analysis of virtual working across international boundaries, focusing on employees rather than the technology.
The practice of teamwork in health industry call centres
Authors: Valsecchi Raffaella , Wise Sarah , Mueller Frank , Smith Chris 
Published: April 2012

PurposeThis paper aims to explore the introduction of teamwork in two health call centres, NHS Direct and NHS24, and intervenes in the emergent debate over teamwork in call centres. Although within the call centre work environment there is no obvious functional rationale for teamwork, teams can be “accounted for” with reference to other purposes, including performance management, normative control, governmentality and institutional isomorphism/management fads. This research provides additional explanations for the use of teamwork in such an adverse work environment.Design/methodology/approachThe paper is based on qualitative data (interviews and non‐participant observations) from NHS Direct and NHS24, the English and Scottish tele‐nursing organisations in the UK.FindingsIn the two tele‐nursing case studies analysed, teamwork was introduced as an expression of managers' aspirations to emulate private sector practices and to reinforce new public management ideals. However, informal teamwork, which cut across organisationally prescribed forms, provided both emotional support and spontaneous knowledge sharing among nurses.Originality/valueThis is an innovative study because teamwork has not been thoroughly explored in a health call centre environment.
Developing ideas and concepts in teamwork research: where do we go from here?
Authors: Marks Abigail , Richards James 
Published: April 2012

PurposeThis editorial seeks to explore changes in both teamwork and developments in teamwork research over the last decade.Design/methodology/approachThe editorial review importantly focuses on the key debates that emerge from the papers covered in this special issue.FindingsA review of the papers in this special issue, as well as historical analysis of teamwork research, indicate that while traditionally, analysis of teamwork was embedded in a manufacturing archetype, much of the contemporary research on teamwork is centred on service sector work where issues of cultural diversity, customer service, and lack of normative integration or task interdependence are increasingly apparent. This editorial suggests that we need to take account of the expansion of the service sector when attempting to conceptualise teamwork and the challenges that collective forms of working in such an environment bring.Originality/valueThis editorial and the special issue more generally provide an important contribution to the development of understanding of how changes in the workplace have had an impact on organisational and academic interest in teamwork.
Job and work attitudes, engagement and employee performance
Authors: Robertson Ivan T. , Jansen Birch Alex , Cooper Cary L. 
Published: April 2012

PurposeThis article aims to test the hypothesis that employee productivity levels will be better predicted by a combination of positive job and work attitudes (employee engagement) and psychological well‐being than by positive job and work attitudes alone.Design/methodology/approachSurvey data using psychometrically sound measures of the key constructs were collected for a sample of over 9,000 people across 12 organisations.FindingsMultiple regression analyses reveal that psychological well‐being has incremental value over and above that of positive job and work attitudes in predicting self‐reported levels of performance.Research limitations/implicationsThe study design involves cross sectional self‐report data and as such firm conclusions about causality cannot be drawn.Practical implicationsThe results suggest that if employers focus only on job and work attitudes and ignore employee psychological well‐being, they will limit the benefits that can be obtained through initiatives such as programmes designed to improve employee engagement.Originality/valueThe study provides evidence that two previously separate constructs are both important in predicting measures of employee productivity.