Results 61 to 70 of about 1,404 (177)

Evo-SETI: A Mathematical Tool for Cladistics, Evolution, and SETI

open access: yesLife, 2017
The discovery of new exoplanets makes us wonder where each new exoplanet stands along its way to develop life as we know it on Earth. Our Evo-SETI Theory is a mathematical way to face this problem.
Claudio Maccone
doaj   +1 more source

The phylogeny of Simulium (Chirostilbia) (Diptera: Simuliidae) and perspectives on the systematics of the genus in the Neotropical Region

open access: yesMemorias do Instituto Oswaldo Cruz, 2012
Recently, knowledge of Neotropical Simuliidae has been accumulating quickly. However, information about supra-specific relationships is scarce and diagnoses of Simulium subgenera are unsatisfactory.
Leonardo Henrique Gil-Azevedo   +2 more
doaj   +1 more source

A Briefly Argued Case That Asgard Archaea Are Part of the Eukaryote Tree

open access: yesFrontiers in Microbiology, 2018
The recent discovery of the Lokiarchaeota and other members of the Asgard superphylum suggests that closer analysis of the cell biology and evolution of these groups may help shed light on the origin of the eukaryote cell. Asgard lineages often appear in
Gregory P. Fournier, Anthony M. Poole
doaj   +1 more source

Towards a methodology for identifying path dependence in the evolution of human resources practices

open access: yesWPOM : Working Papers on Operations Management, 2010
The path dependence approach seems to be well suited for analyzing certain decisions in human resources management. Within this paper, we will try to establish a framework for the application of an evolution model in human resources practices by using ...
M. Rosario Perello-Marin
doaj   +1 more source

Essays on the Binary Representations of the DNA Data

open access: yesDNA
The advancement of modern genomics has led to the large-scale industrial production of molecular data and scientific outcomes. Simultaneously, conventional DNA character alignments (sequence alignments) are utilized for DNA-based phylogenetic analyses ...
Evgeny V. Mavrodiev   +1 more
doaj   +1 more source

Phylogenetic Analyses of Quasars and Galaxies

open access: yesFrontiers in Astronomy and Space Sciences, 2017
Phylogenetic approaches have proven to be useful in astrophysics. We have recently published a Maximum Parsimony (or cladistics) analysis on two samples of 215 and 85 low-z quasars (z < 0.7) which offer a satisfactory coverage of the Eigenvector 1 ...
Didier Fraix-Burnet   +2 more
doaj   +1 more source

Systematic relations among Philornis Meinert, Passeromyia Rodhain & Villeneuve and allied genera (Diptera, Muscidae)

open access: yesBrazilian Journal of Biology, 2003
Passeromyia Rodhain & Villeneuve and Philornis Meinert are the only known Muscidae whose larvae are parasites of birds. Passeromyia is known from the Old World and Philornis from the New World. Opinions on the relations between these two genera and their
Couri M. S., Carvalho C. J. B.
doaj  

A new species of Aulacigaster from Zurquí de Moravia, a Costa Rican cloud forest (Diptera: Aulacigastridae)

open access: yesZoologia (Curitiba), 2018
A new species of Aulacigaster Macquart, 1835 A. zurqui sp. nov., is described from Costa Rica. The new species, which is classified in the plesiomorphica species group following a cladistics analysis, can be separated from all congeners by having a ...
Alessandra Rung
doaj   +1 more source

Essai d’analyse critique des principales hypothèses concernant la phylogénie des Malacostracés (Crustacea, Malacostraca)

open access: yesTravaux de l'Institut de Speologie Emile Racovitza, 2011
Malacostraca, as a Class, represents the largest taxonomic group within the Subphylum Crustacea. This essay is a contribution to the perennial debate of the way to classify the more than 40,000 malacostracan species.
IONEL TABACARU, DAN L. DANIELOPOL
doaj  

Paleobotany in cladistics and cladistics in paleobotany: enlightenment and uncertainty

open access: yesReview of Palaeobotany and Palynology, 1996
Abstract Data on fossil taxa can, and should, be incorporated into cladistic analyses. Potential problems with such analyses include large amounts of missing data, and uncertainty about homology of parts that are present. Ambiguity of character data may also occur with extant taxa, but rarely to the extent that it occurs in fossil data.
openaire   +1 more source

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