Le double

The relationship with the other one, with one’s double — real or imaginary — is, for the human being, an issue that crosses philosophy, art, and also psychopathology. From examples taken in these various fields, I propose to discuss what the relationship with the double condenses. I distinguish three main axes. The first one attempts to describe the double as participant in the construction of oneself, in the feeling of identity, in the construction of the system of «same.» The second concerns the double as the relationship with oneself, with the other one, and with the time which passes. To this respect, the double also ask the question of the transmission. The last axis tries to show how the double also comes to join in certain cases as fate of the desire of eternity, or immortality, as track left after death, the witness of a search for god or other forms of spirituality.     

Le transit epididymo-deferentiel

The epididymis and vas deferens constitute not only a simple conduit for sperm transport but also play an important physiological role in the development of sperm fertilizing ability. The epithelial compartment plays a major functional role in determining the biochemical composition of the luminal fluid in which the spermatozoa undergo a series of structural, biochemical and metabolic changes. During epididymal transit spermatozoa acquire their capacity for motility and also their ability to attach and bind to the zona pellucida and fertilize the oocyte. In man, sperm maturation may occur in the extreme proximal region of the epididymis. The regulation of epididymal and vasa deferential function, as well as sperm maturation, are under androgenic control