João Sanchez

In contemporary industrial times, the success of a company is largely dependent on having effective leadership. Additionally, a leader's capacity for change management is essential when confronted with novel difficulties and shifts. Effective leadership styles are important, as many studies have shown, but not all companies have been able to implement them successfully and witness increases in employee loyalty and performance. The positivist paradigm is applied in this study through empirical research, wherein hypotheses are tested using an empirical model that demonstrates the causal relationship between the model's components. The study's conclusions show how green leadership, digital leadership, and servant leadership improve and have notable effects on the performance of the industrial sector. This research implies that the industrial sector has benefited greatly from the three types of leadership in terms of increased productivity and creativity. In particular, it has been shown that digital leadership, green leadership, and servant leadership all improve an organization's performance as a whole. The study's findings add to the body of knowledge on leadership, support future research with empirical evidence, and have significant theoretical and practical implications for the administrative science community.

Supplemental zinc in fattening lambs improves their health, performance, and meat quality. However, the Zn effect on grazing animals combined with different levels of concentrate should be known unknown. The objective was to evaluate the Zn-organic effect in the diet of grazing lambs supplemented with two levels of concentrate on growth, dry matter (DM) intake, carcass traits, body composition, meat quality, and fatty acid profile in Longissimus dorsi muscle. Twenty-eight lambs were used in a factorial arrangement of two levels of concentrate (C) feed intake (C-0.75 and C-1.5% of live weight) and two Zn-Met levels (0 and 80 ppm Zn kg−1 DM) on the grazing of Lolium perenne L. Digestibility and dry matter intake, weight gain, and productive performance were measured. At the end of the fattening period (90 d), the lambs were slaughtered and the carcass traits, body composition, instrumental quality, and lipid profile of meat were evaluated. The effect of treatment (T), measurement period (P), and T × P interaction was observed (p < 0.05) for dry matter intake (DMI). For the final live weight (FLW) and daily weight gain (DWG), there was an effect (p < 0.05) of T and P, with Zn-80 ppm + C-1.5% treatment being greater. The live weight at slaughter (LWS) and leg length (LL) showed an effect (p < 0.05) of C × Zn. Zn-80 ppm + C-1.5% treatment was higher in the kidney fat, empty body weight, carcass fat, fat and retained energy but lower in protein content (p < 0.05). The physicochemical characteristics and fatty acid content of meat were not affected (p > 0.05). It can be concluded that the concentrated-organic zinc synergy in grazing lambs improved the performance, weight gain, and body composition, which resulted in heavier carcasses with greater amounts of fat, protein, and energy deposited. Furthermore, the physical and chemical meat traits were not affected, but the n-3 fatty acid content and n-3/n-6 ratio in Longissimus dorsi was affected by the Zn level supplemented.

In a previous essay we demonstrated that quantum mechanical formalism is incompatible with some necessary principles of the mechanism conception still dominant in the physicist’s community. In this paper we show, based on recent empirical evidence in quantum physics, the inevitability of abandoning the old mechanism conception and to construct a new one in which physical reality is seen as a representation which refers to relations established through operations made by us in a world that we are determining. This change is profound and radical, with immediate consequences on both Ontology and Epistemology. This work is our contribution to try to make more concrete how this new conception of the world might be

The traditional “realist” conception of physics, according to which human concepts, laws and theories can grasp the essence of a reality in our absence , seems incompatible with quantum formalism and it most fruitful interpretation. The proof rests on the violation by quantum mechanical formalism of some fundamental principles of the classical ontology. We discuss if the conception behind Einstein’s idea of a reality in our absence, could be still maintained and at which price. We conclude that quantum mechanical formalism is not formulated on those terms, leaving for a separated paper the discussion about the terms in which it could be formulated and the onto-epistemological implications it might have

El Trabajo por Proyectos es una metodología muy apropiada para utilizarla en la enseñanza superior, por su carácter investigador. El aprendizaje es activo, involucra al alumno y trabaja otras capacidades cognitivas distintas a las que se desarrollan con la clase magistral. Con la implantación, este curso, del llamado Plan Bolonia, algunos profesores pertenecientes al Grupo de Innovación Educativa Didáctica de las Matemáticas de la UPM, nos planteamos introducir en la asignatura de primer curso del Grado de Arquitectura, denominada Geometría Euclídea, Afín y Proyectiva algunos cambios dirigidos a este tipo de aprendizaje.