Urban domestic wastewater: how to reduce individual injection?

The present paper aims to identify ways to reduce pollution injected by residents in the urban wastewater network system. Two approaches are considered. The first one uses flow and pollutant calculation to test whether a polluter can easily be identified in a neighborhood.

[Criteria of brain death].

Authors have previously published April 1988 a lecture where they criticize the bad denomination "passed coma" full of ambiguity for public mind, to which "brain death" ought to be preferred. In the present communication, they remark that this last denomination is not absolutely exact because the real site of responsibility of death is the "brain stem", or to say better the medulla. They discuss of some explorative tests of this part of the encephalon.

[The beginnings, development and decline of a technique: controlled deep arterial hypotension].

Everything started with hypovolemic hypotension (bleeding). But that was the stone age. Later, postural and drug induced normovolemic methods were used.

[Neurostimulation--endorphins. Personal opinion in the guise of an introduction].

Up until 1974 & 1975, Anesthesiologie observed with a certain reserve progress, which was nevertheless spectacular, in the physiological aspects of pain. The fundamental theory of the inhibition of small algophoric fibres by large fibres (NOOR-DENBOS, 1959), the striking theory of spinal control (WALL and MELZACK, 1965) and even the detection of morphine receptors at the same time paradoxically were associated with little enthusiasm here with only a minimum of mention in the journals. Why this lack of enthusiasm? Undoubtedly because new theories remain speculative when viewed from our own standpoint.