Digits and Digit Identity

2014 ◽  
Author(s):  
Günter P. Wagner
Keyword(s):  
Developmental Biology ◽  
Index Finger ◽  
The Other ◽  
Developmental Genetics ◽  
Dynamic Evolution ◽  
Morphological Heterogeneity ◽  
Character Identity ◽  
Evolutionary And Developmental Biology ◽  
Digit Identity

This chapter investigates the evolutionary and developmental biology of digits, focusing on what these appendages can teach us about character identity and character origination. The idea that digits have individuality and that it is meaningful to distinguish between the thumb, the index finger, and all the other digits is both intuitive and controversial. With it arise questions regarding how digits evolved, how they were gained, lost, and then possibly regained, and whether or not they had changed place in the limb. The chapter first considers the origin of digits, with emphasis on the issue of the nature of the pentadactyl limb, before discussing the developmental and morphological heterogeneity of the tetrapod hand. It also examines digit loss and re-evolution in amniotes, the pentadactyl autopodium type, and developmental developmental genetics of digit identity. It suggests that the “tetrapod limb” is likely the result of a dynamic evolution of character identities.

Evolutionary Biology and Evolutionary Economics

1997 ◽  
Vol 8 (4) ◽  
pp. 221-244 ◽  
Author(s):  
Elias L. Khalil
Keyword(s):  
Economic Theory ◽  
Developmental Biology ◽  
Evolutionary Biology ◽  
Evolutionary Economics ◽  
Learning By Doing ◽  
Evolutionary Change ◽  
The Other ◽  
Evolutionary Economic ◽  
The Subject ◽  
Evolutionary And Developmental Biology

The paper identifies two major conceptual challenges facing evolutionary economics and shows how they parallel similar challenges facing evolutionary and developmental biology. One issue is the differentiation between learning-by-doing, on one hand, and habit formation, on the other. Another issue is the distinction between the cause or origin of evolutionary mutation/innovation, on one side, and the relevant unit which is the subject of evolutionary change, on the other. The failure to identify these two sets of distinction may hinder the articulation of an apropos evolutionary economic theory.

Pointing, Rainbows, and the Archaeology of Mind

Anthropos ◽  
2021 ◽  
Vol 116 (1) ◽  
pp. 145-162
Author(s):  
Robert Blust
Keyword(s):  
Index Finger ◽  
The Other ◽  
Geographical Region ◽  
Cultural Backgrounds ◽  
Human Interactions ◽  
Normal Human ◽  
Other World

For over a century anthropologists and folklorists have sporadically recorded a belief that one should not point at a rainbow, lest the offending finger become permanently bent, rot, be supernaturally severed, fall off, etc. In each case the belief was reported for a particular geographical region without apparent awareness of its presence elsewhere, and in no case was an explanation for this curious idea proposed. This paper documents what is called the “Rainbow Taboo” as a global phenomenon, found among peoples of quite varied cultural backgrounds, and it argues that the universality of the belief is a product of the interaction of two independent cognitive elements: an apparently innate sense that the rainbow is associated with the “other world,” and, secondly, a similar sense that pointing with the index finger is aggressive, and should not be used either in normal human interactions or more particularly against the supernatural.

Hölderlins Homburger Folioheft in diachroner Darstellung

2021 ◽  
Vol 35 (1) ◽  
pp. 99-119
Author(s):  
Hans Gerhard Steimer
Keyword(s):  
Genetic Analysis ◽  
Dynamic Process ◽  
Print Media ◽  
Writing Process ◽  
Spatial Arrangement ◽  
The Other ◽  
Dynamic Evolution ◽  
Late Work ◽  
Gradual Process ◽  
Topographic Representation

Abstract Literary compositional drafts and working manuscripts preserve traces of the gradual process of writing and its different stages. In the static medium of print, genetic editions are confronted with the problem of depicting the dynamic evolution of texts. Presenting the variants in line-by-line synoptic display disregards the spatial arrangement on the manuscript pages. On the other hand, giving a topographic representation of the writing in diplomatic transcripts might stratify it into a few chronological layers but is unable to sufficiently reproduce the dynamic process to an elaborate degree. Consequently, the screen is better suited to visualise the writing process. The digital presentation of the ‘Homburg Folio’, the most important manuscript of Friedrich Hölderlin’s late work, offers not only the transcriptional record as known from print media but displays the process of writing and revision on each of the facsimile’s pages itself (https://homburgfolio.wlb-stuttgart.de). Thus, it is possible to visualise writing both as an act in time and its graphic result on the space of a page. It confines itself to the presentation of the genesis without any constitution of a text. The combination of these different operations has often led to errors. Decoupling the genetic analysis from the extrapolation of text reveals its potential.

Evolutionary developmental biology

2018 ◽  
Author(s):  
Ron Amundson
Keyword(s):  
Developmental Biology ◽  
Evolutionary Developmental Biology ◽  
Developmental Genetics ◽  
Comparative Biology ◽  
Embryological Development ◽  
Adult Form ◽  
The Core ◽  
Almost All ◽  
Evo Devo ◽  
Year 2000

Evolutionary developmental biology is the study of evolutionary change (called phylogeny) as it is revealed through the embryological development of individual organisms (called ontogeny). On this approach, the understanding of ontogeny contributes to our understanding of phylogeny, and vice versa. Evolutionary thinkers of the nineteenth century almost all held what may be called the core doctrine of evolutionary developmental biology: that in order to achieve a modification in the adult form, evolution must modify the embryological processes responsible for that form, so that an understanding of evolution requires an understanding of development. Evolutionary theory has no theoretical need for developmental views of evolution. Beginning around 1990 a series of discoveries and theoretical innovations in developmental genetics led to the reinvigoration of developmental approaches to evolution. Evolutionary developmental biology (‘evo-devo’ as it is now called) was inaugurated as a Division of the Society for Integrative and Comparative Biology in the year 2000.

The Sea Lamprey Petromyzon marinus: A Model for Evolutionary and Developmental Biology

2009 ◽  
Vol 2009 (1) ◽  
pp. pdb.emo113-pdb.emo113 ◽  
Author(s):  
N. Nikitina ◽  
M. Bronner-Fraser ◽  
T. Sauka-Spengler
Keyword(s):  
Developmental Biology ◽  
Petromyzon Marinus ◽  
Sea Lamprey ◽  
Evolutionary And Developmental Biology

An evolutionary and developmental biology approach to gastroschisis

2019 ◽  
Vol 111 (6) ◽  
pp. 294-311 ◽  
Author(s):  
John M. Opitz ◽  
Marcia L. Feldkamp ◽  
Lorenzo D. Botto
Keyword(s):  
Developmental Biology ◽  
Evolutionary And Developmental Biology

Comparative intelligence and intelligent comparisons

2008 ◽  
Vol 31 (2) ◽  
pp. 135-136 ◽  
Author(s):  
R. Allen Gardner
Keyword(s):  
Developmental Biology ◽  
Comparative Psychology ◽  
Genetic Endowment ◽  
Developmental Conditions ◽  
Evolutionary And Developmental Biology

AbstractSound comparative psychology and modern evolutionary and developmental biology emphasize powerful effects of developmental conditions on the expression of genetic endowment. Both demand that evolutionary theorists recognize these effects. Sound comparative psychology also demands experimental procedures that prevent experimenters from shaping the responses of human and nonhuman beings to conform to theoretical expectations.

Sign in / Sign up

Export Citation Format

Share Document