The impact of transformational leadership on team performance

This study was developed to increase the understanding of the extent to which the transformational leadership construct can contribute or determine team-level performance by observing the characteristics of a real work environment in a research and development (R&D) department of a company from the automotive industry in Mexico. This was done by counterposing the assessment of the presence of transformational leadership behaviors demonstrated by the leaders from the point of view of their own team and the team-level performance as a subjective measurement from the leaders’ point of view and checking for a potential causality relation between both. Transformational leadership was assessed from the scope of its five constitutive elements – 1) inspirational motivation, 2) idealized influence – attributes, 3) idealized influence – behaviors, 4) individual consideration, and 5) intellectual stimulation – and was used to quantitatively measure the level of transformational leadership perceived by team members associated with their leader. Team performance was measured under a subjective perception by the leader of the collective achievements of his/her teams. The research covered a sampling universe of 64 teams composed of at least one leader and four team members, having reached the participation of 477 individuals among leaders and team members from the same company. The data collected was statistically analyzed in other to check for the adherence of the proposed causal model taken as the initial premise. Finally, the outcomes of this study aim to provide insights about the predictors influencing the performance of the teams in the automotive industry in Mexico and serve as a reference for driving the efforts of companies on measures to maintain or improve outcomes from teamwork under the influence of leadership behaviors.ITESO, A.C

Never Too Old to Lead: Activating Leadership among Maine\u27s Older Adults

As Maine’s population ages, there will be a growing need to mobilize older Mainers to effect change in their local communities. There are few models available nationally that illustrate how to effectively train and engage baby boomers and older adults as leaders within community contexts. This article examines what is known about leadership development generally and highlights how one program in Maine is training and supporting older leaders who are using volunteer work to improve the health and well-being of their local communities

CONJUGATE MIXED CONVECTION IN AIR-COOLED HEAT SINKS USING A NON-BOUSSINESQ APPROACH

This work reports a numerical study of the mixed convection in finned duct flow that occurs in heat sinks devices. The laminar flow is considered fully developed and the convection-conduction coupling is treated by a conjugated approach. The mathematical formulation of this problem is constituted by the mass, momentum and energy equations. The partial differential equations system is solved by the Galerkin finite element method, adopting a pressure Poisson equation to establish the pressure-velocity coupling and to obtain a mass conserving flow. The results using the classical Boussinesq approximation (density varies linearly with the temperature in the buoyancy-term) are compared with the non-Boussinesq approach (density variation in all terms of the governing equations) showing that both the heat transfer and friction factor are affected by the new considerations. The duct aspect ratio and the solid to fluid thermal conductivity ratio influences on the heat transfer rate are also analyzed. This analysis tool was also shown appropriate for the optimization of electronic components air-cooled heat sinks

SUSCEPTIBILITY OF POPULATION OF SIMULIUM (CHIROSTILBIA) PERTINAX KOLLAR, 1832 (CULICOMORPHA, SIMULIIDAE) TO TEMEPHOS AND BACILLUS-THURINGIENSIS VAR ISRAELENSIS FORMULATION

The use of wooden troughs on stream beds, artificially colonized by blackfly larvae, is proposed for larvicide evaluations. Mortality was recorded 3 or 4 hours after treatment. Larval susceptibility was also evaluated utilizing the LT50 criterion. In there field assays Simulium (C.) pertinax populations from the litoral of S. Paulo and Rio de Janeiro States were shown to be resistant to temephos, even when subjected to high concentrations. Vectobac 12 AS, a Bacillus thuringiensis var. israelensis product, was shown to be more potent against late instar larvae and efficient in concentrations higher than 7,200 ITU/l (10 min). The LT50 to 3,744 ITU/l (10 min) was calculated as 70.9 min.25536737

ONLINE OXIDATION OF CR(III) TO CR(VI) FOR USE WITH THE FLOW-INJECTION ANALYSIS TECHNIQUE

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SPECTROPHOTOMETRIC DETERMINATION OF BORON IN PLANTS USING MONOSEGMENTED CONTINUOUS-FLOW ANALYSIS

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Desenvolvimento e evidências de validade da Bateria de Autoconsciência Corporal e Saúde Ergonômica para Músicos/Development and validity evidence of a Battery of Evaluation of Body Self-awareness and Ergonomic Health in Musicians

Introdução: Considerando evidências de estudos anteriores que indicam uma relação entre a representação multisensorial do corpo e a percepção da dor, sugere-se que a autoconsciência corporal seja uma variável relevante na avaliação da saúde desses indivíduos. Objetivo: desenvolver e levantar evidências de validade de uma bateria de escalas psicométricas que avaliam a autoconsciência corporal relacionada aos aspectos ergonômicos e saúde da atividade musical. Método: 415 estudantes universitários de música participaram da pesquisa. A partir de um estudo transversal com delineamento de survey foram levantadas evidências da validade do tipo conceitual, dos itens e construto. Resultados: a versão final da bateria apresenta três escalas: 1) Escala de Autoconsciência Corporal de Músicos; 2) Escala de Autopercepção de Dor e Performance e; 3) Escala de Aspectos Preventivos. Aspectos relacionados à teorização do construto autoconsciência corporal com foco nas possibilidades de avaliação dos fatores psicossociais, associados à prevenção da dor são discutidos. Conclusão: a estruturação das três escalas desenvolvidas fornecem evidências de que os aspectos ergonômicos em saúde do músico, incluindo as dimensões física, cognitiva e organizacional devem fazer parte de medidas psicométricas destinadas às avaliações clínicas dessa população. Abstract Introduction: Considering the evidence of the relationship between the multisensory representation of the body and the perception of pain, it is suggested that body self-consciousness is a relevant variable in the evaluation of the health of musicians. Objective: to develop and to raise evidences of the conceptual, item and construct validity of a psychometric scale that evaluates the body self-consciousness and the ergonomic / health aspects of the musicians. Method: A crosssectional quantitative study with a survey design for the development of a psychometric instrument. 415 university students of music participated. The data were analyzed with the aid of the Statistical Package for the Social Sciences, R software and by factor analysis. Results: the final version of the instrument presents three scales: 1) Body Self-Awereness Scale of Musicians; 2) Self-perception of Pain and Performance Scale; 3) Scale of Preventive Aspects. The structuring of the three scales reinforces the hypothesis that the ergonomic aspects of the musician's health, including the physical, cognitive and organizational dimensions, should be part of the psychometric measures for this occupational task. Conclusion: the Body Self-Consciousness and Musician's Health Battery proved to be a suitable psychometric measure for the clinical evaluation of this population.  Keywords: ergonomics; body self-consciousness; musculoskeletal pain; health of the musician

Specific Heat of Ce(1-x)La(x)RhIn(5) in Zero and Applied Magnetic Field: A Very Rich Phase Diagram

Specific heat and magnetization results as a function of field on single- and poly-crystalline samples of Ce(1-x)La(x)RhIn(5) show 1.) a specific heat gamma of about 100 mJ/moleK^2 (in agreement with recent dHvA results of Alvers et al.); 2.) upturns at low temperatures in C/T and chi that fit a power law behavior ( Griffiths phase non-Fermi liquid behavior); 3.) a field induced anomaly in C/T as well as M vs H behavior in good agreement with the recent Griffiths phase theory of Castro Neto and Jones, where M~H at low field, M ~ H^lambda above a crossover field, C/T ~ T^(-1+lambda) at low field, and C/T ~ (H^(2+lambda/2)/T^(3-lambda/2))*exp(-mu(eff)H/T) above the same crossover field as determined in the magnetization and where lambda is independently determined from the temperature dependence of chi at low temperatures, chi ~ T^(-1+lambda) and low fields.Comment: 13 pages, 9 figures, to be published in Physical Review