Search found 9 matches

by NMLevesque
Sat Nov 23, 2013 6:47 pm
Forum: General Discussion
Topic: Effects of variation in Flicker Fusion Thresholds (vision)
Replies: 0
Views: 3202

Effects of variation in Flicker Fusion Thresholds (vision)

P r i m e r Time is relative to the observer, and apparently even differs from place to place in the universe. Part of this relativity is apparently a matter of perception as anyone who has experienced different states of consciousness can attest; or as the adages go, time flies when you're having ...
by NMLevesque
Fri Nov 22, 2013 7:03 pm
Forum: Evolution
Topic: Refutation of Evolution theory
Replies: 13
Views: 22705

Re: Refutation of Evolution theory

In short, this precludes any intermediate steps. Before there was life there was proto-life, something that isn't quite living but has some of the qualities of life, which itself spawned from an organic "soup" (figuratively speaking). As these qualities develop the boundary between life an...
by NMLevesque
Fri Nov 22, 2013 6:51 pm
Forum: Evolution
Topic: Beneficial mutations vs harmful
Replies: 12
Views: 28753

Re: Beneficial mutations vs harmful

Natural selection; survival to reproduce. Collections of genes (or more accurately a given gene variant) with better fitness, tend to survive to reproduce more often than those without. Basically harmful mutations tend to lower fitness, whereas beneficial mutations tend to increase it. Or rather tec...
by NMLevesque
Fri Nov 22, 2013 6:24 pm
Forum: Evolution
Topic: God vs Evolution
Replies: 274
Views: 337057

Re: God vs Evolution

I believe God created the universe and everything in it. And that evolution is an incorrect 'THEORY' made by the human race to neglect God. I want your argument about why you believe that human existence is a freak accident or if we were created for a purpose. Which god? What or who created this go...
by NMLevesque
Fri Nov 22, 2013 6:03 pm
Forum: Evolution
Topic: Species Perfection?
Replies: 3
Views: 4799

Re: Species Perfection?

I suppose that depends on what you mean by perfection. Survival or reproductive success, survivability, becoming an apex predator, perfection is kind of nebulous concept when it comes to life.
by NMLevesque
Fri Nov 22, 2013 6:01 pm
Forum: Evolution
Topic: Out of Africa Vs. Multiregional theory
Replies: 2
Views: 6422

Re: Out of Africa Vs. Multiregional theory

I'm not certain that the 'Out of Africa' theory precludes multiregional migration, in fact I think it's predicated on it. The qualifier is that it started in Africa. Of course as a species from an extant line which probably underwent adaptive radiation, it gets a bit complicated with the other, now ...
by NMLevesque
Fri Nov 22, 2013 5:54 pm
Forum: Microbiology
Topic: Mechanism behind Cyanobacterial Cryptobiosis?
Replies: 0
Views: 3078

Mechanism behind Cyanobacterial Cryptobiosis?

Cyanobacteria seem able to, as a colony at least, undergo some form of cryptobiosis (well enough to survive 553 days in the vacuum of space). The only information I can find on the mechanism(s) behind this feet are that they form something called microbial mats which include coatings that protect ag...
by NMLevesque
Wed Nov 20, 2013 10:10 pm
Forum: General Discussion
Topic: Are bidirectional lungs essential for human speech?
Replies: 3
Views: 5383

Re:

1) sound is made in vocal cords, not in lungs Yes sound is made in the vocal cords, which are parts of the larynx...by vibrating air expelled from the lungs. Sound can also be made by the esophagus, which is known as esophageal speech, which is an alternative to using an electrolarynx for person's ...
by NMLevesque
Tue Nov 19, 2013 10:53 pm
Forum: General Discussion
Topic: Are bidirectional lungs essential for human speech?
Replies: 3
Views: 5383

Are bidirectional lungs essential for human speech?

I've been doing some research on avian respiration and their fancy unidirectional lungs (air flows in one direction through the lungs, thanks in part to supplementary air sacs), and wondered what effect having a similar system, or really any sort of unidirectional lungs, would have on human speech. ...