Biology

THE HUMAN CONDITION AND THE 21st CENTURY

The phrase “the human condition” has come to mean many things to different people, but here it simply refers to what history has shown to be the inescapable features of being human.  In this essay we take a look at current trends, what they foretell for the remainder of this century, and how the characteristics that make us human might affect the evolution of those trends.

PDF:  THE HUMAN CONDITION

Biology
General Interest
Politics

Permalink

The Challenge to the Enlightenment

USA Today Magazine (November 2012)

“. . . The conflict here and abroad really is between two fundamentally different and mutually exclusive world views; one based on science, reason, and observation; the other on an interpretation of Scripture that dates back to past periods of religious intolerance.”

CHALLENGE TO ENLIGHTENMENT.pdf

Biology
Essays in Science
General Interest
USA Today Magazine

Permalink

The Problem of the “Prebiotic and Never Born Proteins”

International Journal of Astrobiology / FirstView Article / October 2012, pp 1- 5
DOI: 10.1017/S1473550412000468, Published online.

International Journal of Astrobiology 12 (1): 94–98 (2013)

It has been argued that the limited set of proteins used by life as we know could not have arisen by the process of Darwinian selection from all possible proteins. This probabilistic argument has a number of implicit assumptions that may not be warranted. A variety of considerations are presented to show that the number of amino acid sequences that need to have been sampled during the evolution of proteins is far smaller than assumed by the argument.

NeverBornProteins-IJAB

Published version: Int.J.Astrobiology12(1)94-98(2013)

How to cite this article:
Gerald E. Marsh The problem of the ‘prebiotic and never born proteins’. International Journal of Astrobiology, Available on
CJO doi:10.1017/S1473550412000468

Biology
Essays in Science
General Interest

Permalink

The Demystification of Emergent Behavior

Emergent behavior that appears at a given level of organization
may be characterized as arising from an organizationally lower level in
such a way that it transcends a mere increase in the behavioral degree of
complexity. It is therefore to be distinguished from systems exhibiting
chaotic behavior, for example, which are deterministic but unpredictable
because of an exponential dependence on initial conditions. In emergent
phenomena, higher-levels of organization are not determined by lowerlevels
of organization; or, more colloquially, emergent behavior is often
said to be “greater than the sum of the parts”. The concept plays an
especially important but contentious role in the biological sciences. This
essay is intended to demystify at least some aspects of the mystery of
emergence.

(This is an updated and expanded version of the original post with some portions rewritten to enhance clarity.)

EMERGENT BEHAVIOR

Biology
Essays in Science
General Interest
Physics

Permalink

When the Stars Begin to Fall: The Waning of the Enlightenment

Essays in the Philosophy of Humanism Vol. 17 (1), Spring-Summer 2009
Creationism and Science

As fundamentalist religious thought strengthens its hold on U.S. politics, and increases its role in politics around the world, enlightened values that form the very foundation of modern society are coming under attack. In the United States the wedge issue being used by fundamentalists is a pseudo-debate over creationism and Darwin’s theory of the descent of man.

(PDF)

Biology
General Interest
Politics

Permalink