Dictionary » R » Respirator



A divice of gauze or wire, covering the mouth or nose, to prevent the inhalation of noxious substances, as dust or smoke. Being warmed by the breath, it tempers cold air passing through it, and may also be used for the inhalation of medicated vapors.

Origin: Cf. F. Respirateur.

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The Most Primitive Respiratory System

I would take it phylogeneticaly. Hardly can some insect have more developed respiratory system then mammal, can it? This should probably help http://en.wikipedia.org/wiki/Respiratory_system#Comparative_anatomy_and_physiology

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by JackBean
Fri Feb 24, 2012 2:24 pm
Forum: Evolution
Topic: The Most Primitive Respiratory System
Replies: 11
Views: 7827

Properties of Cellulose?

I'm doing a project which is related to design a face mask for breathing (respirator). As the material selection is very limited , i'm thinking use "cellulose" to be my material of face mask. izzit work ? is it enough hardness to be a mask ? thanks

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by tgl84
Wed May 14, 2008 10:59 am
Forum: Botany Discussion
Topic: Properties of Cellulose?
Replies: 4
Views: 3932

Marine Biology And/or Fish Ecology

Suit with heater :shock: http://www.taicarbon.com.tw/active-carbon-face-mask-respirator.jpg Heater, Activated Carbon Fiber You will look like this :lol:

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by sachin
Tue Nov 21, 2006 10:38 am
Forum: General Discussion
Topic: Marine Biology And/or Fish Ecology
Replies: 16
Views: 5109

totalRNA extraction from infected protoplast

do you have a special space for RNA operation? do you use RNAase-free EP tubes? do you use respirator? carefully,i think you must be successful. hope this helps.

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by seaseasea
Tue May 16, 2006 4:20 am
Forum: Molecular Biology
Topic: totalRNA extraction from infected protoplast
Replies: 1
Views: 1690

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