Results 41 to 50 of about 1,146,667 (380)
Extinction risk and conservation of the world’s sharks and rays [PDF]
eLife, 2013 The rapid expansion of human activities threatens ocean-wide biodiversity. Numerous marine animal populations have declined, yet it remains unclear whether these trends are symptomatic of a chronic accumulation of global marine extinction risk.
N. Dulvy +22 more
semanticscholar +1 more source
Genes, 2018 De-extinction projects for species such as the woolly mammoth and passenger pigeon have greatly stimulated public and scientific interest, producing a large body of literature and much debate. To date, there has been little consistency in descriptions of de-extinction technologies and purposes.
openaire +2 more sources
Impaired contextual modulation of memories in PTSD: an fMRI and psychophysiological study of extinction retention and fear renewal [PDF]
, 2014 Post-traumatic stress disorder (PTSD) patients display pervasive fear memories, expressed indiscriminately. Proposed mechanisms include enhanced fear learning and impaired extinction or extinction recall. Documented extinction recall deficits and failure
Abelson, James L +6 more
core +1 more source
The strange history of atmospheric oxygen
Physiological Reports, 2022 Many of us think a lot about oxygen. This includes how the normal body handles oxygen in health, but particularly how this is complicated by lung disease. Few of us are aware that as human inhabitants of the earth, we have a unique privilege.
John B. West
doaj +1 more source
A Quantitative Comparison of SMC, LMC, and Milky Way UV to NIR Extinction Curves
, 2003 We present an exhaustive, quantitative comparison of all of the known extinction curves in the Small and Large Magellanic Clouds (SMC and LMC) with our understanding of the general behavior of Milky Way extinction curves.
Aiello S. +12 more
core +1 more source
Behavioral and Neurobiological Mechanisms of Pavlovian and Instrumental Extinction Learning.
Physiological Reviews, 2020 This article reviews the behavioral neuroscience of extinction, the phenomenon in which a behavior that has been acquired through Pavlovian or instrumental (operant) learning decreases in strength when the outcome that reinforced it is removed ...
M. Bouton, Stephen Maren, G. McNally
semanticscholar +1 more source
Hurst Coefficient in long time series of population size: Model for two plant populations with different reproductive strategies [PDF]
, 2010 Can the fractal dimension of fluctuations in population size be used to estimate extinction risk? The problem with estimating this fractal dimension is that the lengths of the time series are usually too short for conclusive results.
ADELA SALVADOR +10 more
core +2 more sources
Current Biology, 2005 Factors influencing the evolution of complex traits such as body size are notoriously difficult to study but a new review of work on marine iguanas in the Galapagos islands suggests an answer may lie in the interplay of natural and sexual selection.
openaire +2 more sources
Data Science JournalResearch data management (RDM) is key to fast and effective cooperation in collaborative research projects, especially when several scientific disciplines are involved.
Marlene Pacharra +2 more
doaj +1 more source
Three-fold way to extinction in populations of cyclically competing species [PDF]
, 2010 Species extinction occurs regularly and unavoidably in ecological systems. The time scales for extinction can broadly vary and inform on the ecosystem's stability.
Cremer J +6 more
core +2 more sources