Personality and team performance: a meta-analysis

Using a meta-analytical procedure, the relationship between team composition in terms of the Big-Five personality traits (trait elevation and variability) and team performance were researched. The number of teams upon which analyses were performed ranged from 106 to 527. For the total sample, significant effects were found for elevation in agreeableness ( = 0.24) and conscientiousness ( = 0.20), and for variability in agreeableness ( = -0.12) and conscientiousness ( = -0.24). Moderation by type of team was tested for professional teams versus student teams. Moderation results for agreeableness and conscientiousness were in line with the total sample results. However, student and professional teams differed in effects for emotional stability and openness to experience. Based on these results, suggestions for future team composition research are presented

Measuring the influence of concept detection on video retrieval

There is an increasing emphasis on including semantic concept detection as part of video retrieval. This represents a modality for retrieval quite different from metadata-based and keyframe similarity-based approaches. One of the premises on which the success of this is based, is that good quality detection is available in order to guarantee retrieval quality. But how good does the feature detection actually need to be? Is it possible to achieve good retrieval quality, even with poor quality concept detection and if so then what is the 'tipping point' below which detection accuracy proves not to be beneficial? In this paper we explore this question using a collection of rushes video where we artificially vary the quality of detection of semantic features and we study the impact on the resulting retrieval. Our results show that the impact of improving or degrading performance of concept detectors is not directly reflected as retrieval performance and this raises interesting questions about how accurate concept detection really needs to be

Service Guidelines of Public Meeting’s Webcasts: An Experience

International audienceIn Italy, public meeting webcasts are frequently adopted by local public administrations to support the "information provision" process. This is supposed to increase the citizens' awareness and participation to public life. In the paper, the experience gathered from the design of both the architecture of a webcasting system and the "webcast's production and distribution process" is presented. The system implementation is discussed referring to a large Italian Public Agency

Exome sequencing and functional analyses suggest that SIX6 is a gene involved in an altered proliferation-differentiation balance early in life and optic nerve degeneration at old age

Primary open-angle glaucoma (POAG) is a hereditary neurodegenerative disease, characterized by optic nerve changes including increased excavation, notching and optic disc hemorrhages. The excavation can be described by the vertical cup-disc ratio (VCDR). Previously, genome-wide significant evidence for the association of rs10483727 in SIX1-SIX6 locus with VCDR and subsequent POAG was found. Using 1000 genomes-based imputation of four independent population-based cohorts in the Netherlands, we identified a missense variant rs33912345 (His141Asn) in SIX6 associated with VCDR (Pmeta = 7.74 × 10-7, n = 11 473) and POAG (Pmeta = 6.09 × 10-3, n = 292). Exome sequencing analysis revealed another missense variant rs146737847 (Glu129Lys) also in SIX6 associated with VCDR (P = 5.09 × 10-3, n = 1208). These two findings point to SIX6 as the responsible gene for the previously reported association signal. Functional characterization of SIX6 in zebrafish revealed that knockdown of six6b led to a small eye phenotype. Histological analysis showed retinal lamination, implying an apparent normal development of the eye, but an underdeveloped lens, and reduced optic nerve diameter. Expression analysis of morphants at 3 dpf showed a 5.5-fold up-regulation of cdkn2b, a cyclin-dependent kinase inhibitor, involved in cell cycle regulation and previously associated with VCDR and POAG in genome-wide association studies (GWASs). Since both six6b and cdkn2b play a key role in cell proliferation, we assessed the proliferative activity in the eye of morphants and found an alteration in the proliferative pattern of retinal cells. Our findings in humans and zebrafish suggest a functional involvement of six6b in early eye development, and open new insights into the genetic architecture of POAG

Integrated analysis of environmental and genetic influences on cord blood DNA methylation in new-borns

Epigenetic processes, including DNA methylation (DNAm), are among the mechanisms allowing integration of genetic and environmental factors to shape cellular function. While many studies have investigated either environmental or genetic contributions to DNAm, few have assessed their integrated effects. Here we examine the relative contributions of prenatal environmental factors and genotype on DNA methylation in neonatal blood at variably methylated regions (VMRs) in 4 independent cohorts (overall n = 2365). We use Akaike’s information criterion to test which factors best explain variability of methylation in the cohort-specific VMRs: several prenatal environmental factors (E), genotypes in cis (G), or their additive (G + E) or interaction (GxE) effects. Genetic and environmental factors in combination best explain DNAm at the majority of VMRs. The CpGs best explained by either G, G + E or GxE are functionally distinct. The enrichment of genetic variants from GxE models in GWAS for complex disorders supports their importance for disease risk

Mining Novice User Activity with TRECVID Interactive Retrieval Tasks

Abstract. This paper investigates the applicability of Informedia shot-based interface features for video retrieval in the hands of novice users, noted in past work as being too reliant on text search. The Informedia interface was redesigned to better promote the availability of additional video access mechanisms, and tested with TRECVID 2005 interactive search tasks. A transaction log analysis from 24 novice users shows a dramatic increase in the use of color search and shot-browsing mechanisms beyond traditional text search. In addition, a within-subjects study examined the employment of user activity mining to suppress shots previously seen. This strategy did not have the expected positive effect on performance. User activity mining and shot suppression did produce a broader shot space to be explored and resulted in more unique answer shots being discovered. Implications for shot suppression in video retrieval information exploration interfaces are discussed.

Development tax and territorial planning in tourism

Includes bibliographical referencesAvailable from British Library Document Supply Centre- DSC:3597. 12575(2003/1) / BLDSC - British Library Document Supply CentreSIGLEGBUnited Kingdo

Designing in teams : does personality matter?

Twenty-six multidisciplinary student design teams (n = 128) each built a robot that had to perform a specific task in a design contest. For these teams, an input—process—output framework of team member personality (input), generic and specific design behaviors (process), and contest result and supervisor and team member ratings of the design (output) was researched using correlations. Agreeableness and conscientiousness were positively related to generic design behaviors in both the concept and elaboration phase of the design process. Generic design behaviors were positively related to contest result and team member ratings of the design's technical realization. The conclusions hold implications for design research (multiple process and outcome measures are needed) and practice (attention for personality differences in teams and particular design behaviors in specific design phases foster design outcomes)

Associations Between Borderline Personality Disorder Symptoms and Online Self-Disclosure in Clinically Referred Youth

Communicating online via social media has proven to facilitate disclosure of intimate topics and can therefore be helpful in the development of intimate relationships. However, for youth with borderline personality disorder (BPD) symptoms, it may be more difficult to know when, what, and to whom to disclose (i.e., effective disclosure) in online contacts. The authors examine associations between BPD symptoms, online self-disclosure, and ineffective online self-disclosure (e.g., regretting sharing something online). The sample consisted of 235 clinically referred youth (66.4% female), aged 12-25 years (M = 17.82, SD = 2.96). Structural equation modeling revealed that BPD symptoms were related to higher levels of same- and cross-sex online self-disclosure as well as to more ineffective online self-disclosure. There was no moderation by sex or age. This study suggests that youth with BPD symptoms are at risk for oversharing personal information, which could affect forming and maintaining intimate relationships and increases online risks