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Showing papers by "DePaul University published in 2007"


Book ChapterDOI
Robin Burke1
01 Jan 2007
TL;DR: This chapter surveys the space of two-part hybrid recommender systems, comparing four different recommendation techniques and seven different hybridization strategies and finds that cascade and augmented hybrids work well, especially when combining two components of differing strengths.
Abstract: Adaptive web sites may offer automated recommendations generated through any number of well-studied techniques including collaborative, content-based and knowledge-based recommendation. Each of these techniques has its own strengths and weaknesses. In search of better performance, researchers have combined recommendation techniques to build hybrid recommender systems. This chapter surveys the space of two-part hybrid recommender systems, comparing four different recommendation techniques and seven different hybridization strategies. Implementations of 41 hybrids including some novel combinations are examined and compared. The study finds that cascade and augmented hybrids work well, especially when combining two components of differing strengths.

1,104 citations


Journal ArticleDOI
TL;DR: Team minimum agreeableness and team mean conscientiousness, openness to experience, collectivism, and preference for teamwork emerged as strong predictors of team performance in field studies.
Abstract: This study sought to unify the team composition literature by using meta-analytic techniques to estimate the relationships between specified deep-level team composition variables (i.e., personality factors, values, abilities) and team performance. The strength of the team composition variable and team performance relationships was moderated by the study setting (lab or field) and the operationalization of the team composition variable. In lab settings, team minimum and maximum general mental ability and team mean emotional intelligence were related to team performance. Only negligible effects were observed in lab settings for the personality factor and team performance relationships, as well as the value and team performance relationships. In contrast, team minimum agreeableness and team mean conscientiousness, openness to experience, collectivism, and preference for teamwork emerged as strong predictors of team performance in field studies. Results can be used to effectively compose teams in organizations and guide future team composition research.

901 citations


Posted Content
TL;DR: In this article, the authors focus on the competition for investor attention between a firm's earnings announcements and the earnings announcements of other firms and find that the immediate stock price and volume reaction to a firms earnings surprise is weaker, and post-earnings announcement drift is stronger, when a greater number of earnings announcements by other firms are made on the same day.
Abstract: Psychological evidence indicates that it is hard to process multiple stimuli and perform multiple tasks at the same time. This paper tests the INVESTOR DISTRACTION HYPOTHESIS, which holds that the arrival of extraneous news causes trading and market prices to react sluggishly to relevant news about a firm. Our test focuses on the competition for investor attention between a firm's earnings announcements and the earnings announcements of other firms. We find that the immediate stock price and volume reaction to a firm's earnings surprise is weaker, and post-earnings announcement drift is stronger, when a greater number of earnings announcements by other firms are made on the same day. Distracting news has a stronger effect on firms that receive positive than negative earnings surprises. Industry-unrelated news has a stronger distracting effect than related news. A trading strategy that exploits post-earnings announcement drift is unprofitable for announcements made on days with little competing news.

850 citations


Reference EntryDOI
01 Jun 2007
TL;DR: In this article, the authors discuss the importance of emotion communication as evidenced in infants through their emotional signaling to caregivers, their social referencing to significant others, and their growing skills at affective sharing with others.
Abstract: The chapter begins by addressing the theoretical platform endorsed by the authors that consists of an integration of functionalist perspectives with dynamic systems and social contextualism. This integrated perspective entails a flexible approach to emotional behavior: Expressive behavior, action tendencies, and cultural influence on emotion meaning all have their place in understanding emotional development. The chapter goes on to examine early emotional development, highlighting the importance of emotion communication as evidenced in infants through their emotional signaling to caregivers, their social referencing to significant others, and their growing skills at affective sharing with others. The final half of the chapter examines the development of eight specific skills of emotional competence, emphasizing their social effectiveness and individual adaptiveness. We conclude with a discussion of future research directions, including what may be the relational limits of emotion, individual differences in emotional responsiveness to contextual cues, attention processes, and emotion-related goals, some of which may become interiorized with development. Keywords: adolescent development; childhood development; emotion; emotional competence; functionalism; infanct development; social context; social effectiveness

536 citations


Journal ArticleDOI
TL;DR: It is proposed that one or more large, low-density ET objects exploded over northern North America, partially destabilizing the Laurentide Ice Sheet and triggering YD cooling, which contributed to end-Pleistocene megafaunal extinctions and adaptive shifts among PaleoAmericans in North America.
Abstract: A carbon-rich black layer, dating to ≈12.9 ka, has been previously identified at ≈50 Clovis-age sites across North America and appears contemporaneous with the abrupt onset of Younger Dryas (YD) cooling. The in situ bones of extinct Pleistocene megafauna, along with Clovis tool assemblages, occur below this black layer but not within or above it. Causes for the extinctions, YD cooling, and termination of Clovis culture have long been controversial. In this paper, we provide evidence for an extraterrestrial (ET) impact event at ≅12.9 ka, which we hypothesize caused abrupt environmental changes that contributed to YD cooling, major ecological reorganization, broad-scale extinctions, and rapid human behavioral shifts at the end of the Clovis Period. Clovis-age sites in North American are overlain by a thin, discrete layer with varying peak abundances of (i) magnetic grains with iridium, (ii) magnetic microspherules, (iii) charcoal, (iv) soot, (v) carbon spherules, (vi) glass-like carbon containing nanodiamonds, and (vii) fullerenes with ET helium, all of which are evidence for an ET impact and associated biomass burning at ≈12.9 ka. This layer also extends throughout at least 15 Carolina Bays, which are unique, elliptical depressions, oriented to the northwest across the Atlantic Coastal Plain. We propose that one or more large, low-density ET objects exploded over northern North America, partially destabilizing the Laurentide Ice Sheet and triggering YD cooling. The shock wave, thermal pulse, and event-related environmental effects (e.g., extensive biomass burning and food limitations) contributed to end-Pleistocene megafaunal extinctions and adaptive shifts among PaleoAmericans in North America.

480 citations


Journal ArticleDOI
TL;DR: This study shows that both user-based and item-based algorithms are highly vulnerable to specific attack models, but that hybrid algorithms may provide a higher degree of robustness.
Abstract: Publicly accessible adaptive systems such as collaborative recommender systems present a security problem. Attackers, who cannot be readily distinguished from ordinary users, may inject biased profiles in an attempt to force a system to “adapt” in a manner advantageous to them. Such attacks may lead to a degradation of user trust in the objectivity and accuracy of the system. Recent research has begun to examine the vulnerabilities and robustness of different collaborative recommendation techniques in the face of “profile injection” attacks. In this article, we outline some of the major issues in building secure recommender systems, concentrating in particular on the modeling of attacks and their impact on various recommendation algorithms. We introduce several new attack models and perform extensive simulation-based evaluations to show which attacks are most successful and practical against common recommendation techniques. Our study shows that both user-based and item-based algorithms are highly vulnerable to specific attack models, but that hybrid algorithms may provide a higher degree of robustness. Using our formal characterization of attack models, we also introduce a novel classification-based approach for detecting attack profiles and evaluate its effectiveness in neutralizing attacks.

460 citations


Journal ArticleDOI
TL;DR: This article investigated how deans and directors at the top 50 global MBA programs responded to questions about the inclusion and coverage of the topics of ethics, corporate social responsibility, and sustainability at their respective institutions.
Abstract: This paper investigates how deans and directors at the top 50 global MBA programs (as rated by the Financial Times in their 2006 Global MBA rankings) respond to questions about the inclusion and coverage of the topics of ethics, corporate social responsibility, and sustainability at their respective institutions. This work purposely investigates each of the three topics separately. Our findings reveal that: (1) a majority of the schools require that one or more of these topics be covered in their MBA curriculum and one-third of the schools require coverage of all three topics as part of the MBA curriculum, (2) there is a trend toward the inclusion of sustainability-related courses, (3) there is a higher percentage of student interest in these topics (as measured by the presence of a Net Impact club) in the top 10 schools, and (4) several schools are teaching these topics using experiential learning and immersion techniques. We note a fivefold increase in the number of stand-alone ethics courses since a 1988 investigation on ethics, and we include other findings about institutional support of centers or special programs; as well as a discussion of integration, teaching techniques, and notable practices in relation to all three topics.

457 citations


Journal ArticleDOI
Mojdeh Bayat1
TL;DR: Evidence is presented that a considerable number of families of children with autism display factors of resilience--reporting having become stronger as a result of disability in the family.
Abstract: Background Family resilience is a growing field of inquiry, investigating factors that contribute to a family’s becoming stronger in spite of dealing with adversity. Despite the growing interest in studying family resilience, the topic has not been explored in families with children who have disabilities.This report, a part of a larger study ‐ using both quantitative and qualitative methodologies ‐ is an examination of factors of family resilience in the families of children with autism. Evidence of family resilience such as family connectedness and closeness, positive meaning-making of the disability, and spiritual and personal growth were identified and examined in this part of the study. Method The study uses a survey methodology, analysing responses to several rating scales and written responses to three open-ended questions. Survey respondents consisted of !"# parents and other primary caregivers of a child with autism ‐ ages between $ and !% years. Results Results suggest identification of specific resilience processes, such as: making positive meaning of disability, mobilization of resources, and becoming united and closer as a family; finding greater appreciation of life in general, and other people in specific; and gaining spiritual strength. Conclusions This study presents evidence that a considerable number of families of children with autism display factors of resilience ‐ reporting having become stronger as a result of disability in the family.

442 citations


Proceedings ArticleDOI
06 Nov 2007
TL;DR: This work presents an approach to personalized search that involves building models of user context as ontological profiles by assigning implicitly derived interest scores to existing concepts in a domain ontology.
Abstract: Every user has a distinct background and a specific goal when searching for information on the Web. The goal of Web search personalization is to tailor search results to a particular user based on that user's interests and preferences. Effective personalization of information access involves two important challenges: accurately identifying the user context and organizing the information in such a way that matches the particular context. We present an approach to personalized search that involves building models of user context as ontological profiles by assigning implicitly derived interest scores to existing concepts in a domain ontology. A spreading activation algorithm is used to maintain the interest scores based on the user's ongoing behavior. Our experiments show that re-ranking the search results based on the interest scores and the semantic evidence in an ontological user profile is effective in presenting the most relevant results to the user.

382 citations


Journal ArticleDOI
TL;DR: In this paper, the authors test the investor distraction hypothesis, which holds that the arrival of extraneous news causes trading and market prices to react sluggishly to relevant news about a firm, and find that the immediate stock price and volume reaction to a firm's earnings surprise is weaker, and post-earnings announcement drift is stronger, when a greater number of earnings announcements by other firms are made on the same day.
Abstract: Psychological evidence indicates that it is hard to process multiple stimuli and perform multiple tasks at the same time. This paper tests the investor distraction hypothesis, which holds that the arrival of extraneous news causes trading and market prices to react sluggishly to relevant news about a firm. Our test focuses on the competition for investor attention between a firm's earnings announcements and the earnings announcements of other firms. We find that the immediate stock price and volume reaction to a firm's earnings surprise is weaker, and post-earnings announcement drift is stronger, when a greater number of earnings announcements by other firms are made on the same day. Distracting news has a stronger effect on firms that receive positive than negative earnings surprises. Industry-unrelated news has a stronger distracting effect than related news. A trading strategy that exploits post-earnings announcement drift is unprofitable for announcements made on days with little competing news.

365 citations


Book ChapterDOI
01 Jan 2007
TL;DR: An overview of Web personalization process viewed as an application of data mining requiring support for all the phases of a typical data mining cycle, including data collection and pre-processing, pattern discovery and evaluation, and finally applying the discovered knowledge in real-time to mediate between the user and the Web.
Abstract: In this chapter we present an overview of Web personalization process viewed as an application of data mining requiring support for all the phases of a typical data mining cycle. These phases include data collection and pre-processing, pattern discovery and evaluation, and finally applying the discovered knowledge in real-time to mediate between the user and the Web. This view of the personalization process provides added flexibility in leveraging multiple data sources and in effectively using the discovered models in an automatic personalization system. The chapter provides a detailed discussion of a host of activities and techniques used at different stages of this cycle, including the preprocessing and integration of data from multiple sources, as well as pattern discovery techniques that are typically applied to this data. We consider a number of classes of data mining algorithms used particularly forWeb personalization, including techniques based on clustering, association rule discovery, sequential pattern mining, Markov models, and probabilistic mixture and hidden (latent) variable models. Finally, we discuss hybrid data mining frameworks that leverage data from a variety of channels to provide more effective personalization solutions.

Journal ArticleDOI
01 Apr 2007
TL;DR: Flow, social contract, social cognitive, resource allocation, and trust theories are discussed in the paper to support the proposed hypotheses and theoretical and practical implications of these findings are discussed.
Abstract: Trust (integrity, benevolence, and ability) is the central dimension of e-commerce systems adoption. Based on customer self-service systems and human-computer interaction logics, affective variables are important research issues to fully understand the relationship between information systems development and e-trust. In this paper, the effects of the perceived Web quality with service contents on e-trust, mediated by the website user's affective variables (enjoyment and anxiety), are tested and discussed (n=325). Flow, social contract, social cognitive, resource allocation, and trust theories are discussed in the paper to support the proposed hypotheses. Theoretical and practical implications of these findings are also discussed.

Journal ArticleDOI
TL;DR: The best model was one in which only response criteria and the nondecisional components of processing changed between the 2 variants, supporting the view that the core information on which decisions are based is not different between them.
Abstract: In this article, the first explicit, theory-based comparison of 2-choice and go/no-go variants of 3 experimental tasks is presented. Prior research has questioned whether the underlying core-information processing is different for the 2 variants of a task or whether they differ mostly in response demands. The authors examined 4 different diffusion models for the go/no-go variant of each task along with a standard diffusion model for the 2-choice variant (R. Ratcliff, 1978). The 2-choice and the go/no-go models were fit to data from 4 lexical decision experiments, 1 numerosity discrimination experiment, and 1 recognition memory experiment, each with 2-choice and go/no-go variants. The models that assumed an implicit decision criterion for no-go responses produced better fits than models that did not. The best model was one in which only response criteria and the nondecisional components of processing changed between the 2 variants, supporting the view that the core information on which decisions are based is not different between them.

Journal ArticleDOI
TL;DR: In this article, the authors focus on the importance of decoupling recurrent supply risk and disruption risk when planning appropriate mitigation strategies and show that bundling the two uncertainties leads a manager to underutilize a reliable source while over utilizing a cheaper but less reliable supplier.
Abstract: This paper focuses on the importance of decoupling recurrent supply risk and disruption risk when planning appropriate mitigation strategies. We show that bundling the two uncertainties leads a manager to underutilize a reliable source while over utilizing a cheaper but less reliable supplier. As in Dada et al. (working paper, University of Illinois, Champaign, IL, 2003), we show that increasing quantity from a cheaper but less reliable source is an effective risk mitigation strategy if most of the supply risk growth comes from an increase in recurrent uncertainty. In contrast, we show that a firm should order more from a reliable source and less from a cheaper but less reliable source if most of the supply risk growth comes from an increase in disruption probability.

Posted Content
TL;DR: It is shown how many innovations can be better understood by deploying a S-D logic perspective and argued that discontinuous innovation can arise by changing any of the customers’ roles of users, buyers and payers on the first dimension.
Abstract: The service-dominant logic (S-D logic) provides a novel and valuable theoretical perspective that necessitates a rethinking and reevaluation of the conventional literature on innovation. This literature is built upon a goods-dominant logic and has resulted in a restricted and out-moded perspective that overlooks many major discontinuous innovations. In this article, we show how many innovations can be better understood by deploying a S-D logic perspective. We present six S-D logic categories of discontinuous innovation positing that they can help scholars and managers analyze, design and implement breakthrough advances in resource use. We argue that discontinuous innovation can arise by changing any of the customers’ roles of users, buyers and payers on the first dimension. On the second dimension, the firm changes its value creation by embedding operant resources into objects, by changing the integrators of resources, and by reconfiguring value constellations. Finally, we offer some managerial and research implications of this expanded and strategic view of discontinuous innovation.

Journal ArticleDOI
Yo-An Lee1
TL;DR: This article examined and specified the local contingencies that surround the teacher's third turn in order to bring into view the unforeseen range of the method of actions that teachers display in the third turn.

Journal ArticleDOI
TL;DR: In this paper, the authors examined the role played by nonprofits in cross-sector collaborative efforts for post-Katrina and Rita relief, recovery, and rebuilding in three affected areas, New Orleans, southwest Louisiana, and central Texas.
Abstract: In this study, nonprofit involvement in cross-sector collaborative efforts for post-Katrina and Rita relief, recovery, and rebuilding are examined. Using Bryson, Crosby, and Stone’s model as a framework, the collaborative and intermediary roles played by nonprofits in three affected areas, New Orleans, southwest Louisiana, and central Texas, are analyzed. Extensions of the model are introduced to include aspects of organizational capacity and individual and prosocial behaviors resultant of cross-sector collaboration during extreme events. Implications of the findings for nonprofit practice and policy as well as future research in emergency management are discussed.

Journal ArticleDOI
TL;DR: The results uncover that nativity may be a less important independent risk factor for current psychiatric morbidity than originally thought and suggest that successful adaptation into the US is a multidimensional process that includes maintenance of family harmony, integration in advantageous US neighborhoods, and positive perceptions of social standing.

Journal ArticleDOI
TL;DR: In this article, a cross-cultural analysis of communication of CSR activities in a total of 16 U.S. and European corporations was conducted, and it was found that U. S. companies tend to communicate about and justify CSR using economic or bottom-line terms and arguments whereas European companies would rely more heavily on language or theories of citizenship, corporate accountability, or moral commitment.
Abstract: This study explores corporate social responsibility (CSR) by conducting a cross-cultural analysis of communication of CSR activities in a total of 16 U.S. and European corporations. Drawing on previous research contrasting two major approaches to CSR initiatives, it was proposed that U.S. companies would tend to communicate about and justify CSR using economic or bottom-line terms and arguments whereas European companies would rely more heavily on language or theories of citizenship, corporate accountability, or moral commitment. Results supported this expectation of difference, with some modification. Specifically, results indicated that EU companies do not value sustainability to the exclusion of financial elements, but instead project sustainability commitments in addition to financial commitments. Further, U.S.-based companies focused more heavily on financial justifications whereas EU-based companies incorporated both financial and sustainability elements in justifying their CSR activities. In addition, wide variance was found in both the prevalence and use of specific CSR-related terminology. Cross-cultural distinctions in this use create implications with regard to measurability and evidence of both strategic and bottom-line impact. Directions for further research are discussed.

Journal ArticleDOI
TL;DR: Meta-analysis was used to summarize the results of 50 studies of practice effects for tests of cognitive ability and revealed that effects were larger when practice was accompanied by test coaching and when identical forms were used.
Abstract: Previous studies have indicated that as many as 25% to 50% of applicants in organizational and educational settings are retested with measures of cognitive ability. Researchers have shown that practice effects are found across measurement occasions such that scores improve when these applicants retest. In this study, the authors used meta-analysis to summarize the results of 50 studies of practice effects for tests of cognitive ability. Results from 107 samples and 134,436 participants revealed an adjusted overall effect size of .26. Moderator analyses indicated that effects were larger when practice was accompanied by test coaching and when identical forms were used. Additional research is needed to understand the impact of retesting on the validity inferences drawn from test scores.

Journal ArticleDOI
TL;DR: The approach is used to detect and classify stakeholders’ quality concerns across requirements specifications containing scattered and non-categorized requirements, and also across freeform documents such as meeting minutes, interview notes, and memos.
Abstract: This paper describes a technique for automating the detection and classification of non-functional requirements related to properties such as security, performance, and usability. Early detection of non-functional requirements enables them to be incorporated into the initial architectural design instead of being refactored in at a later date. The approach is used to detect and classify stakeholders’ quality concerns across requirements specifications containing scattered and non-categorized requirements, and also across freeform documents such as meeting minutes, interview notes, and memos. This paper first describes the classification algorithm and then evaluates its effectiveness through reporting a series of experiments based on 30 requirements specifications developed as term projects by MS students at DePaul University. A new and iterative approach is then introduced for training or retraining a classifier to detect and classify non-functional requirements (NFR) in datasets dissimilar to the initial training sets. This approach is evaluated against a large free-form requirements document obtained from Siemens Logistics and Automotive Organization. Although to the NFR classifier is unable to detect all of the NFRs, it is useful for supporting an analyst in the error-prone task of manually discovering NFRs, and furthermore can be used to quickly analyse large and complex documents in order to search for NFRs.

Journal ArticleDOI
TL;DR: In this article, the authors examined the school enrollment of migrant children who resided in cities of Guangdong province in 1995, using data from the 1995 China 1% Population Sample Survey, and applied a research strategy that incorporates both migration origin as well as destination.

Journal ArticleDOI
TL;DR: The authors describe nine best practices for implementing effective automated traceability, sharply reducing the effort of manual approaches to build and maintain a requirements trace matrix.
Abstract: Automated traceability applies information-retrieval techniques to generate candidate links, sharply reducing the effort of manual approaches to build and maintain a requirements trace matrix as well as providing after-the-fact traceability in legacy documents.The authors describe nine best practices for implementing effective automated traceability.

Journal ArticleDOI
TL;DR: This article examined the construction of an author's discursive identity by peer reviewers in a simulated blind manuscript review process for an academic journal in the field of rhetoric and composition, and found that reviewers' constructions of the author's voice are related to their stance toward the author.

Journal ArticleDOI
TL;DR: Results suggest that receiving abstinence support, guidance, and information from recovery home members committed to the goal of long-term sobriety may enhance residents' abstinence self-efficacy and enable persons recovering from alcohol and other drug addiction to reduce the probability of a relapse.

Journal ArticleDOI
TL;DR: The authors identified eight attributes that affect government public relations: politics, focus on serving the public, legal constraints, extreme media and public scrutiny, lack of managerial support for public relations practitioners, poor public perception of government communication, lagging professional development, and federalism.
Abstract: We argue that the existing public relations and communication models do not adequately account for the unique environmental characteristics of the public sector. By reviewing the public sector environment literature, we identify 8 attributes that affect government public relations: politics, focus on serving the public, legal constraints, extreme media and public scrutiny, lack of managerial support for public relations practitioners, poor public perception of government communication, lagging professional development, and federalism. We then review 5 existing public relations models, arguing that none of these models fully incorporates the unique environmental characteristics of the public sector. We conclude by proposing a new model: the government communication decision wheel.

Journal ArticleDOI
TL;DR: This article found that recruiters' perceptions of job applicant employability will be associated with varying levels of job applicants' academic qualifications, work experience, and extracurricular activities as reported on applicants' resumes.
Abstract: Despite resumes being evaluated as an initial step in most employment decisions for professional-level job openings, researchers have not adequately examined the influence that applicants’ resume qualifications may have on recruiters’ initial impressions of applicants’ employability. Based on prior research, we hypothesised that recruiters’ perceptions of job applicant employability will be associated with varying levels of job applicants’ academic qualifications, work experience, and extracurricular activities as reported on applicants’ resumes. Experienced recruiters (N= 244) evaluated 122 actual applicant resumes of recent or soon-to-be college graduates. Results supported our hypotheses, indicating that recruiters’ perceptions of applicants’ academic qualifications, work experience, and extracurricular activities interacted to predict recruiters’ perceptions of applicants’ employability. Alors que les curriculum vitae sont evalues lors de l’etape initiale de la plupart des procedures de recrutement pour pourvoir des nouveaux emplois d’un niveau professionnel eleve, les chercheurs n’ont pas suffisamment etudie l’influence des qualifications inscrites dans le curriculum vitae sur les premieres impressions des recruteurs quant a l’employabilite des candidats. Basee sur une recherche anterieure, notre hypothese pose que les perceptions des recruteurs de l’employabilite des candidats a un emploi varieraient selon les qualifications academiques du candidat, l’experience professionnelle et les activites extra-professionnelles telles qu’elles sont presentees dans le curriculum vitae. Des recruteurs experimentes (N= 244) ont evalue 122 curriculum vitae de candidats reels recemment ou sur le point d’etre diplomes de l’universite. Les resultats confirment nos hypotheses. Les perceptions des recruteurs quant aux qualifications universitaires des candidats, leur experience professionnelle et leurs autres activites interagissent et permettent de predire les perceptions que les recruteurs ont de l’employabilite des candidats.

Journal ArticleDOI
TL;DR: It is found that consensus systematically decreased as work role requirements ranged from molecular tasks to responsibilities to molar traits, and was significantly influenced by the amount of interdependence, autonomy, and routinization present in the surrounding task and social contexts.
Abstract: Although role theory has long described how expectations shape role behavior, little empirical research has examined differences among work role requirements and how features of the discrete occupational context may influence the extent to which role expectations are shared among role holders. The authors examined consensus in work role requirements from a sample of over 20,000 incumbents across 98 occupations. They found that consensus systematically decreased as work role requirements ranged from molecular tasks to responsibilities to molar traits. In addition, they found that consensus in these work role requirements was significantly influenced by the amount of interdependence, autonomy, and routinization present in the surrounding task and social contexts.

Journal ArticleDOI
TL;DR: The authors examined the direct and moderated effects of an ability-based measure of emotional intelligence (MSCEIT© V2.0) on individual performance in a sample of business undergraduates.
Abstract: We examined the direct and moderated effects of an ability-based measure of emotional intelligence (MSCEIT© V2.0) on individual performance in a sample of business undergraduates. Controlling for general mental ability and personality, emotional intelligence explained unique incremental variance in performance ratings on only one of two measures of interpersonal effectiveness (public speaking effectiveness). However, the interaction of emotional intelligence with conscientiousness explained unique incremental variance both in public speaking and group behavior effectiveness, as well as academic performance (cumulative GPA). We conclude that the effects of emotional intelligence on performance are more indirect than direct in nature. Individuals must not only have emotional intelligence, but also must be motivated to use it. Copyright © 2006 John Wiley & Sons, Ltd.

Journal ArticleDOI
TL;DR: Tests indicate that using curvelet-based texture features significantly improves the classification of normal tissues in CT scans, and the algorithms are extensively tested and results are compared with standard texture classification algorithms.