In Sinaloa, labor force employed in tasks related to vegetable production is mostly from migrants. These people come from the states of Guerrero, Oaxaca and Veracruz. They are, however, economically, socially, politically and laborally excluded both as migrants and as indigenous people. In order to face these problems, in Sinaloa,...
Dos elementos que han contribuido a modificar de manera radical nuestra visión del universo son la Mecánica Cuántica y la Teoría General de la Relatividad. La primera surgió como consecuencia de explicar fenómenos que la mecánica newtoniana no podía. La segunda, para unificar en forma consistente la relatividad especial y...
In the present work, titanium dioxide materials doped with transition metal cations (Cr, Cu and Mo) were synthesized by the sol-gel method. To analyze the photocatalytic activity the dop ing content was vary to 0.1, 0.5, 1.0 and 5.0 wt.%. The synthesized materials were characterized by Fourier transform infrared, Ultraviolet-...
En el estudio de los sistemas lineales Filippov en tres dimensiones, se tienen muchos trabajos en el escenario genérico donde la variedad de conmutación contiene dos líneas de tangencia, las cuales se cruzan transversalmente en un punto llamado singularidad de doble tangencia. En este trabajo de tesis, estamos interesados en...
Diabetes mellitus (DM) is one of the main chronic diseases at the present time and it is widespread throughout the world. It is defined as a set of metabolic disorders whose main characteristic is a persistent high blood glucose concentration (hyperglycemia), abnormal until reaching concentrations harmful to the physiological systems,...
