Mailing List Archive

Mailing List: techdiver

Message Display

Date: Mon, 8 Jul 1996 07:55:28 -1000 (HST)
From: Richard Pyle <deepreef@bi*.bi*.Ha*.Or*>
To: John 015 <CC015012@BR*.br*.ed*>
Cc: techdiver@terra.net
Subject: Re: Chaos and DCI. Was CCRs and the *right..


> Gas bubbles cause DCI. 

I'm not even sure we know this much - it may be that surfactant 
biomolecules conglomerating around bubbles is what actually causes the 
damage/vascular blockage.  But I do agree that most folks feel that 
bubbles play an extremely important role.

> Gas bubbles can develop well below the point of boiling
> if there are "seeds" present in the liquid.  These "seeds"
> are born through the process of tribonucleation.

The seeds are stable bubbles themselves. Therefore, the issue isn't 
whether or not bubbles "form", but rather whether and to what extent they 
grow (or are eliminated -- years ago there was an hypothesis that the 
reason people who do frequent and repeated deep dives are less prone to 
DCI is that their hyperbaric exposures assisted in the elimination of the 
micronuclei "seeds".  I don't know how widely accepted that hypothesis is 
anymore.)  Just a nit-pick.

Aloha,
Rich

Navigate by Author: [Previous] [Next] [Author Search Index]
Navigate by Subject: [Previous] [Next] [Subject Search Index]

[Send Reply] [Send Message with New Topic]

[Search Selection] [Mailing List Home] [Home]