It is likely that internal factors play an important role in restricting the possible avenues of evolutionary change from any starting point. Internal selective processes operating on premutational disturbances, on mutations, and on developmental phases may usefully be separated from the adaptive selection of phenotypes. The precise structural and morphological consequences of internal factors should soon become an isolable problem owing to a) the observational correlation of definite changes in hereditary specificity with particular developmental consequences; and b) the progressive theoretical (...) identification of the coordinative conditions in organisms. Increasing clarity regarding the coordinative conditions should throw light on the “mutational selection rules” and on the differentiative mutations which led to the most important steps in the past history of evolution.Die Wege der Evolution können sowohl durch innere Auslese der Genotypen wÄhrend der Entwicklung als auch durch die Äussere Darwinische Auslese der Phenotypen bestimmt werden. Seit 1949 haben sich zumindest fünf Forscher mit dieser Möglichkeit befasst. Es ist zur Zeit möglich, zwischen den beiden Arten von Zuchtwahl theoretisch und experimentell zu unterscheiden.Les chemins de l'évolution peuvent Être déterminés non seulement par la sélection extérieure Darwinienne des phénotypes mais aussi par la sélection intérieure des genotypes pendant le développement. Depuis 1949 aux moins cinq investigateurs en ont considéré la possibilité. Il est possible à présent de faire la distinction entre les deux types de sélection dans la théorie comme dans l'expérience. (shrink)

"This work springs from a conviction of the unity of nature, expressed here in a single principle. In its earliest form this conviction was merely the sense of a hidden unity of form in nature, which the intellect had not yet identified. At that stage it had little value, except in creating the need to find a rational justification for the a-rational feeling. Soon I realised that the discovery of a universal form of process was hindered by the intellectual separation (...) of the processes of subjective experience from those of the external world. It was necessary to bring into closer relation the scientific conception of the forms of external nature and the subjective sense of the forms of experience. This in turn led to the recognition that the methods of exact science had paid inadequate attention to the irreversible or one-way character of process, which is unmistakable in the subjective realm, but is also evident in many inorganic and organic processes, such as those do which form is developed. I expressed this view in a sketch of the outlook of the sciences, entitled Archimedes, or the Future of Physics (1927). The next step was the observation that one principle only could account for the development of regular spatial forms: the principle that asymmetry decreases in isolable processes. This concept of one-way process appeared to me to be the most general conception of spatial process conceivable at the present time, so that all other types of process should be capable of being represented as special cases. I called it the Unitary Principle and determined to use it as the basis of a comprehensive scientific method."--The preface. (shrink)

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Cette bande dessine prsente par le Haut Commissariat des Nations Unies aux droits de l'homme (HCDH) le Programme commun des Nations Unies sur le VIH/SIDA (ONUSIDA) et l'Organisation mondiale de la Sant (OMS) a t conue pour donner aux jeunes les moyens de dfendre les droits de l'homme en relation avec le VIH/SIDA pour sensibiliser aux liens cruciaux existant entre le VIH/SIDA et les droits de l'homme pour faire mieux connatre la maladie et pour lutter contre les ides fausses et (...) les tabous qui s'y associent. (shrink)

Whyte chooses nine thinkers to illustrate this historical and evolutionary movement, including Heraclitus, Marx, and Freud, and the resulting vignettes are a synthesis of knowledge that suggest, as well, a reorientation of thought, feeling, and action for the future."--BOOK JACKET.

Avoiding the seductive trap of utopianism, Whyte approaches this challenge by defining the terms of a potentially worldwide consensus of heart, mind, and will ...