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Las células satélites (CSs), son progenitores miogénicos quiescentes responsables de la regeneración muscular durante la adultez. Ante un daño muscular, las CSs se activan, proliferan y finalmente se diferencian. Este proceso es sostenido por la expresión secuencial de factores reguladores de mús...

Satellite cells (SCs) are quiescent myogenic progenitors responsible for skeletal muscle regeneration during adult life. Upon muscle damage, SCs activate, proliferate and finally differentiate; a process supported by the sequential expression of muscle regulatory factors (MRFs) and the down-regul...

In this thesis, the vulnerability and capacity of acclimation to environmental stress related to Climate change mainly in Cystoseira tamariscifolia and other species as Ellisolandia elongata, Cystoseira compressa and Padina pavonica are evaluated. The effects of physical stressors as elevated irr...

En la presente tesis desarrollo una cronología de cambios en la vegetación y paleofuegos que abarca los últimos 17.000 años a partir de testigos de sedimentos lacustres obtenido de Laguna Churrasco (45°41’S, 71°49’O, 798 msnm), región de Aysén. El objetivo es documentar la historia de la vegetaci...

In this thesis I present a record of changes in vegetation and paleofires over the last 17,000 years from sediment cores obtained from Laguna Churrasco (45 ° 41'S, 71 ° 49'W, 798 masl), Aysén region. The objective is to document the history of vegetation and paleofires, their reciprocal relations...

Viruses are ubiquitous in all environments and hot-springs are not the exception even though its extreme conditions. Phototrophic mats of terrestrial hot-springs have been used for decades as models for understanding the composition, structure, and function of microbial communities in nature. The...

Los virus son ubicuos en todos los entornos y las fuentes termales no son la excepción a pesar de sus condiciones extremas. Los tapetes fototróficoss de las fuentes termales terrestres se han utilizado durante décadas como modelos para comprender la composición, estructura y función de las comuni...

Discarding Antarctic and sub Antarctic regions, the Andes concentrate almost 90% of glacier cover in the Southern Hemisphere. Large data gaps exist here, preventing detailed knowledge on how climate determines glacier behavior. As Andean glaciers are distributed in a latitudinal transect spanning...

Heap bioleaching technology has been successfully applied at an industrial scale for over 30 years, and is generally considered to be the most effective engineering option to bio-process low-grade copper sulfide ores. Heap bioleaching was established at the Escondida mine in Chile in 2006, and cu...

Reptile adaptation to desert environments is a relevant topic in evolutionary biology. Aridity could constitute a strong selective pressure on organisms that colonize these habitats which can develop morphological, physiological and behavioral features that confer better survival in this extreme ...