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This project delves into the concepts of electromagnetic waves of light and introduces the concepts of wavelength and polarization, these concepts are related to the ability of bees to perceive ultraviolet light and polarized light. This causal chain of physical phenomena is studied through a detailed description of light sources and the ways in which it can be polarized in the environment in which bees live. In addition, the anatomical mechanisms in which the perception of bees is possible are studied. It is proposed that the different types of light exposure studied are an important part in the experience, interaction, communication and feeding of these insects., Comment: 10 pages, in Spanish, 12 figures, is a optics project, send me an email for infomation

In this work, we combine a new form of the cell survival fraction developed in [29] with the Gompertz cell growth model. The result is an equation that models the cell growth/death under a radiation dose and can be applied in a conventional radiation treatment (we chose conventional fractionation and hypofractionation). Later we optimize this equation in order to obtain the optimal doses that reduce the tumor's size or the number of cancer cells. We applied our results to breast cancer data: invasive ductal carcinoma (IDC) and ductal carcinoma in situ (DCIS), Comment: in Spanish, PhD thesis (2017)

In this work we to develop a general statistical mechanic formalism to study systems restricted to surfaces of revolution, these are a very well model to study the termodinamical properties of microbiological systems and macromolecules lies on biological membranes such as cellular well., Comment: in Spanish

It is investigated how biofriendly is the Milky Way for photosynthetic life. Special attention is dedicated to the role of the photobiological regime in the emergence and evolution of this kind of life in terrestrial planets. Following this line, it is investigated the potential role of stellar explosions as a potential environmental perturbation in planets, emphasizing on Earth. The difficulties in modelling the behaviour of stressed biological systems and the robustness of life leads us to conclude the relative arbitrariness of defining a galactic habitable zone with today's limited knowledge on the very possible diverse sets of living creatures., Comment: PhD thesis of Osmel Mart\'in, in Spanish