Personality and Trust: A Qualitative Study on the Personality Styles/Traits of Leaders and Employees and the Impact on Culture of Trust within Organizations

Trust among coworkers and workplace leaders are related to key outcomes such as helping behavior, relationship building, and team effectiveness. The personality style of the individuals who must trust each other is an integral part of developing that trust. This study examines the relationship among three trust constructs (trust, trustworthiness, and propensity to trust) and two personality scales (Big Five and Insights). Approximately 900 individuals from 18 different U.S. organizations participated in this research. These analyses examined the relationship between personality and trust in both managers and direct reports and reviewed personality styles as an antecedent of trust between managers and direct reports. The findings showed that agreeableness was found to be a significant predictor of propensity to trust; the higher an individual’s agreeableness and emotional stability, the higher their propensity to trust. No significant relationships existed between propensity to trust and conscientiousness, extraversion, or intellect/imagination. Perceptions of extraversion were not significant in predicting ratings of trustworthiness and the overall model of control variables and perceptions of each of the Big Five traits was well-fitted to the prediction of ratings of leader trustworthiness. Those leading with red energy (extraverted – thinking) tended to have significantly lower propensity to trust then those leading with green energy (introverted – feeling) and was the only significant difference at the .01 level. Employees who perceived their leaders as having a yellow (extraverted - feeling) personality style rated them as less trustworthy than leaders who were perceived as having blue (introverted – thinking) or green (introverted - feeling personality styles. Finally, there were no significant differences in the levels of trust experienced when looking at the interaction of personality styles between employees and leaders

Evaluation of Genetic Diversity by DNA Barcoding of Local Tomato Populations from North-Western Romania

Tomato is one of the most important crops worldwide. DNA barcoding is a molecular based method that has been successfully used for species identification, but a few studies have used this method for cultivated varieties identification. The aim of this study was to test the utility of DNA barcoding for the identification of five local salt tolerant tomato varieties and two commercial varieties. To assess the genetic diversity of tomato varieties, the non-coding plastid trnH-psbA intergenic spacer and three plastid regions (rbcL, rpoC1, rpoB) were used. Based on the sequence variation of the trnH-psbA barcode, three haplotypes were detected among the seven tomato varieties. A neighbor-joining tree was generated and separated the local tomato varieties from the commercial varieties into two distinct clusters. We found very low levels of variation in the chosen plastial markers, but additional markers could be tested in order to assess the utility of DNA barcodes in tomato varieties identification

INFLUENCE OF HIGH LIGHT INTENSITY ON THE CELLS OF CYANOBACTERIA ANABAENA VARIABILIS SP. ATCC 29413

In this article is presented the result of research regardind the effect of high light intensity on the cells of Anabaena variabilis sp. ATCC 29413, the main objective is to study the adaptation of photosynthetic apparatus to light stress. Samples were analyzed in the present of herbicide diuron (DCMU) which blocks electron flow from photosystem II and without diuron. During treatment maximum fluorescence and photosystems efficiency are significantly reduced, reaching very low values compared with the blank, as a result of photoinhibition installation. Also by this treatment is shown the importance of the mechanisms by which cells detect the presence of light stress and react accordingly

IL SERVIZIO SOCIALE TRA QUALITA' DELLA FORMAZIONE PERMANENTE, RIFLESSIVITA' E COMPETENZE PROFESSIONALI

2002/2003XVI Ciclo1966Versione digitalizzata della tesi di dottorato cartacea

Cyanobacterial psbA gene family: optimization of oxygenic photosynthesis

The D1 protein of Photosystem II (PSII), encoded by the psbA genes, is an indispensable component of oxygenic photosynthesis. Due to strongly oxidative chemistry of PSII water splitting, the D1 protein is prone to constant photodamage requiring its replacement, whereas most of the other PSII subunits remain ordinarily undamaged. In cyanobacteria, the D1 protein is encoded by a psbA gene family, whose members are differentially expressed according to environmental cues. Here, the regulation of the psbA gene expression is first discussed with emphasis on the model organisms Synechococcus sp. and Synechocystis sp. Then, a general classification of cyanobacterial D1 isoforms in various cyanobacterial species into D1m, D1:1, D1:2, and D1′ forms depending on their expression pattern under acclimated growth conditions and upon stress is discussed, taking into consideration the phototolerance of different D1 forms and the expression conditions of respective members of the psbA gene family