Results 121 to 130 of about 1,991,503 (333)

Extinction of the human species: What could cause it and how likely is it to occur?

open access: yesCambridge Prisms: Extinction
The possibility of human extinction has received growing academic attention over the last several decades. Research has analysed possible pathways to human extinction, as well as ethical considerations relating to human survival.
Sean ÓhÉigeartaigh
doaj   +1 more source

Modeling the within-host dynamics of cholera: bacterial–viral interaction

open access: yesJournal of Biological Dynamics, 2017
Novel deterministic and stochastic models are proposed in this paper for the within-host dynamics of cholera, with a focus on the bacterial–viral interaction.
Xueying Wang, Jin Wang
doaj   +1 more source

RE-IGNITION OF MULTI-SPECIES SOOT CLOUDS IN BUILDING FIRES [PDF]

open access: yes, 2007
The re-ignition potential of multi-species soot clouds in building fires were investigated based on their extinction characteristics. The investigation was carried out theoretically using an adaptation of Semenov’s thermal explosion theory.
Moghtaderi, B., Poespowati, T.
core  

An unusual titanosaur axis from the Upper Cretaceous of Brazil and its significance for sauropod anatomy and systematics

open access: yesThe Anatomical Record, EarlyView.
Abstract The Upper Cretaceous São José do Rio Preto Formation (Bauru Group, southeastern Brazil) has yielded a fragmentary but taxonomically diverse record of titanosaur sauropods, although elements from cervical series remain scarce. Here, we describe a nearly complete sauropod axis from the Vila Ventura Paleontological Area, representing an uncommon ...
Bruno A. Navarro   +7 more
wiley   +1 more source

Quasi-probability Approach for Modelling Local Extinction and Counter-gradient in Turbulent Premixed Combustion [PDF]

open access: yes, 2018
In opposition to standard probability distributions, quasi-probability distributions can have negative values which highlight nonclassical properties of the corresponding system.
Pagnini, G., Trucchia, A.
core  

Probability of extinction for the Western population under the inbreeding scenario.

open access: yes, 2013
Releasing several females drastically reduces the probability of extinction.
Pierre-Yves Quenette (369648)   +3 more
core   +1 more source

A second species of non‐crocodyliform crocodylomorph from the Late Triassic fissure deposits of southwestern UK: Implications for locomotory ecological diversity in Saltoposuchidae

open access: yesThe Anatomical Record, EarlyView.
Abstract The Late Triassic–Early Jurassic fissures of the Bristol Channel area (southwest England and south Wales) are renowned for their diverse vertebrate faunas. These assemblages have yielded an array of predominantly small‐bodied forms that are crucial to our understanding of the early evolution of several major tetrapod clades.
Ewan H. Bodenham   +4 more
wiley   +1 more source

The probability of extinction of a dynamic epidemic model

open access: yes, 2012
We consider the spread of an epidemic through a population divided into n sub-populations, in which individuals move between populations according to a Markov transition matrix Σ and infectives can only make infectious contacts with members of their ...
Neal, Peter John
core  

Working with laws, regularities and singularities in biology: The evolution of mammalian red blood cell size as a case study

open access: yesThe Anatomical Record, EarlyView.
Abstract Phylogenetic comparative methods have been used in recent literature to work with laws and test for regularities (evolutionary associations of quantitative features) and evolutionary singularities (features that evolved in a single taxon). We analyzed these uses epistemologically, taking the evolution of red‐blood‐cell mean corpuscular volume (
Jorge Cubo   +3 more
wiley   +1 more source

Postcranial anatomy and osteohistology of an early prozostrodont cynodont from the Upper Triassic of Brazil

open access: yesThe Anatomical Record, EarlyView.
Abstract Prozostrodon brasiliensis, a probainognathian cynodont of the clade Prozostrodontia, is recognized as a key taxon for understanding the origin of Mammaliaformes and mammals. Despite detailed investigations of its cranial anatomy, the postcranial skeleton has received comparatively less attention.
Iasmim M. Michelotti   +4 more
wiley   +1 more source

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