50 research outputs found
LEADERSHIP STYLE, POLICING AND PERCEPTION OF CORRUPTION: A COMPARATIVE PRELIMINARY STUDY WITHIN THE NIGERIA POLICE FORCE
The connection between leadership style, on the one hand, policing and
perception of corruption, on the other hand, has received little attention in the literature on leadership theory and organizational processes. Hence, the aim of this study is to examine the relationship between transformational leadership and perception of corruption within the police institution, especially in this instance, the Nigeria Police Force. Based on a sampling process of cross sectional approach, the data were collected by administering questionnaires on 156 respondents in Alausa police district in Lagos State. The descriptive result shows that while transformational leadership is practiced in the Nigeria Police Force, the perceived level of corruption remains high. Though
in varying degree, the results indicate a positive correlation between the attributes of transformational leadership (charisma, individualized consideration and intellectual stimulation) and the dimensions of corruption. While charisma consistently has a positive influence on the facets of corruption, individualized consideration and charisma
influence the dimension of transparency within the police force. In addition, individualized consideration influences the facet of crime. Thus, transformational leadership seems to play an important, but complex role in the reduction of corrupt practices within the police institution. The findings were discussed in the specific contexts of
transformational leadership theory, organizational practices and police corruption. The practical implications for organizational development, police reform and crusade against police deviances were also underscored
Influence of shoot inclination on irradiance and morphophysiological leaf traits along shoots in cerrado trees with distinct leaf deciduousness
Calcification in vitro of biomineralizated nanohydroxyapatite/superydrophilic vertically aligned multiwalled carbon nanotube scaffolds
Measurements of differential cross-sections in top-quark pair events with a high transverse momentum top quark and limits on beyond the Standard Model contributions to top-quark pair production with the ATLAS detector at âs = 13 TeV
Cross-section measurements of top-quark pair production where the hadronically decaying top quark has transverse momentum greater than 355 GeV and the other top quark decays into âÎœb are presented using 139 fbâ1 of data collected by the ATLAS experiment during proton-proton collisions at the LHC. The fiducial cross-section at s = 13 TeV is measured to be Ï = 1.267 ± 0.005 ± 0.053 pb, where the uncertainties reflect the limited number of data events and the systematic uncertainties, giving a total uncertainty of 4.2%. The cross-section is measured differentially as a function of variables characterising the ttÂŻ system and additional radiation in the events. The results are compared with various Monte Carlo generators, including comparisons where the generators are reweighted to match a parton-level calculation at next-to-next-to-leading order. The reweighting improves the agreement between data and theory. The measured distribution of the top-quark transverse momentum is used to search for new physics in the context of the effective field theory framework. No significant deviation from the Standard Model is observed and limits are set on the Wilson coefficients of the dimension-six operators OtG and Otq(8), where the limits on the latter are the most stringent to date. [Figure not available: see fulltext.]
Evidence of higher photosynthetic plasticity in the early successional Guazuma ulmifolia Lam. compared to the late successional Hymenaea courbaril L. grown in contrasting light environments
Principais alteraçÔes fĂsico-quĂmicas em Ăłleos e gorduras submetidos ao processo de fritura por imersĂŁo: regulamentação e efeitos na saĂșde
Direct constraint on the Higgsâcharm coupling from a search for Higgs boson decays into charm quarks with the ATLAS detector
A search for the Higgs boson decaying into a pair of charm quarks is presented. The analysis uses protonâproton collisions to target the production of a Higgs boson in association with a leptonically decaying W or Z boson. The dataset delivered by the LHC at a centre-of-mass energy of and recorded by the ATLAS detector corresponds to an integrated luminosity of 139 fbâ1. Flavour-tagging algorithms are used to identify jets originating from the hadronisation of charm quarks. The analysis method is validated with the simultaneous measurement of WW, WZ and ZZ production, with observed (expected) significances of 2.6 (2.2) standard deviations above the background-only prediction for the (W/Z)Z(âccÂŻ) process and 3.8 (4.6) standard deviations for the (W/Z)W(âcq) process. The (W/Z)H(âccÂŻ) search yields an observed (expected) upper limit of 26 (31) times the predicted Standard Model cross-section times branching fraction for a Higgs boson with a mass of , corresponding to an observed (expected) constraint on the charm Yukawa coupling modifier |Îșc|<8.5 (12.4), at the 95% confidence level. A combination with the ATLAS (W/Z)H,HâbbÂŻ analysis is performed, allowing the ratio Îșc/Îșb to be constrained to less than 4.5 at the 95% confidence level, smaller than the ratio of the b- and c-quark masses, and therefore determines the Higgs-charm coupling to be weaker than the Higgs-bottom coupling at the 95% confidence level
Evidence of higher photosynthetic plasticity in the early successional Guazuma ulmifolia Lam. compared to the late successional Hymenaea courbaril L. grown in contrasting light environments
The present study investigated changes in photosynthetic characteristics of Guazuma ulmifolia Lam. (early successional species) and Hymenaea courbaril L. (late successional species) grown in contrasting light conditions as a way of assessing photosynthetic plasticity. Early successional species typically inhabit gap environments being exposed to variability in multiple resources, hence it is expected that these species would show higher photosynthetic plasticity than late successional ones. In order to test this hypothesis, light and CO(2) response curves and chlorophyl1 content (Ch1) were measured in plants grown in high and low light environments. G. ulmifolia presented the highest amounts of both Ch1 a and b, especially in the low light, and both species presented higher Ch1 a than b in both light conditions. The Ch1 a/b ratio was higher in high light leaves of both species and greater in G. ulmifolia. Taken together, these results evidence the acclimation potential of both species, reflecting the capacity to modulate light harvesting complexes according to the light environment. However, G. ulmifolia showed evidence of higher photosynthetic plasticity, as indicated by the greater amplitude of variation on photosynthetic characteristics between environments shown by more significant shade adjusted parameters (SAC) and principal component analysis (PCA). Thus, the results obtained were coherent with the hypothesis that the early successional species G. ulmifolia exhibits higher photosynthetic plasticity than the late successional species H. courbaril