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Extinction and morphospace occupation: A critical review

open access: yesCambridge Prisms: Extinction, 2023
Processes of extinction, especially selectivity, can be studied using the distribution of species in morphospace. Random extinction reduces the number of species but has little effect on the range of morphologies or ecological roles in a fauna or flora ...
P. David Polly
doaj   +1 more source

The Infrared Extinction Law in the Ophiuchus Molecular Cloud Based on the UKIDSS and Spitzer c2d Surveys

open access: yesUniverse, 2023
Investigating the extinction properties in dense molecular clouds is of significant importance for understanding the behavior of interstellar dust and its impact on observations.
Jun Li, Xi Chen
doaj   +1 more source

Prefrontal Dopamine in Flexible Adaptation to Environmental Changes: A Game for Two Players

open access: yesBiomedicines, 2023
Deficits in cognitive flexibility have been characterized in affective, anxiety, and neurodegenerative disorders. This paper reviews data, mainly from studies on animal models, that support the existence of a cortical–striatal brain circuit modulated by ...
Emanuele Claudio Latagliata   +5 more
doaj   +1 more source

Erasing the extinct: the hunt for Caribbean monk seals and museum collection practices [PDF]

open access: yesHistória, Ciências, Saúde: Manguinhos, 2022
The Caribbean monk seal (Monachus tropicalis), the only seal species native to Central America, was declared extinct in 2008, with the last confirmed sighting in 1952. This species historically had a broad range throughout the gulf of Mexico.
Dolly Jørgensen
doaj   +1 more source

Are extinction opinions extinct? [PDF]

open access: yesPeerJ, 2017
Extinction models vary in the information they require, the simplest considering the rate of certain sightings only. More complicated methods include uncertain sightings and allow for variation in the reliability of uncertain sightings. Generally extinction models require expert opinion, either as a prior belief that a species is extinct, or to ...
Lee, TE, Bowman, C, Roberts, DL
openaire   +4 more sources

Threshold dynamics of stochastic cholera epidemic model with direct transmission

open access: yesAIMS Mathematics, 2023
This paper extends the cholera human-to-human direct transmission model from a deterministic to a stochastic framework. This is expressed as mixed system of stochastic and deterministic differential equations.
Roshan Ara   +3 more
doaj   +1 more source

Population Synthesis Models for Normal Galaxies with Dusty Disks [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2003
To investigate the SEDs of galaxies considering the dust extinction processes in the galactic disks, we present the population synthesis models for normal galaxies with dusty disks. We use PEGASE (Fioc & Rocca-Volmerange 1997) to model them with standard
Kyung-Won Suh, Mi-Ryang Kim
doaj   +1 more source

The Birefringence and Extinction Coefficient of Ferroelectric Liquid Crystals in the Terahertz Range

open access: yesPhotonics, 2023
In this paper, the refractive index and extinction coefficient of ferroelectric liquid crystals have been examined by the terahertz time-domain spectroscopy system.
Ying Ma   +5 more
doaj   +1 more source

After the Fall: The Demographic Destiny of a Gorgonian Population Stricken by Catastrophic Mortality

open access: yesOceans, 2021
In recent years, the frequency of mass mortality events in marine ecosystems has increased, and several populations of benthic organism have been affected, reducing their density and changing their size and age structure.
Simona Ruffaldi Santori   +6 more
doaj   +1 more source

Rethinking Extinction [PDF]

open access: yesNeuron, 2015
Extinction serves as the leading theoretical framework and experimental model to describe how learned behaviors diminish through absence of anticipated reinforcement. In the past decade, extinction has moved beyond the realm of associative learning theory and behavioral experimentation in animals and has become a topic of considerable interest in the ...
Dunsmoor, Joseph E.   +3 more
openaire   +2 more sources

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