Results 141 to 150 of about 25,862 (299)
Loss, persistence and reversal of phenotypic traits
Biological Reviews, EarlyView.ABSTRACT The irreversibility of complex trait loss has long been a tenet of evolutionary biology. However, this idea is increasingly at odds with the numerous documented exceptions across the Tree of Life. We synthesise this growing body of evidence across a diverse array of taxa and traits, exploring the evolutionary conditions that enable ...
Giobbe Forni +4 more
wiley +1 more source
, 2014 The Lapita expansion took Austronesian seafaring peoples with distinctive pottery eastward from the Bismarck Archipelago to western Polynesia during the late second millennium BC, marking the first stage in the settlement of Oceania.
David, Bruno O. +4 more
core
Flight of the dragons: a global review of migration in Odonata
Biological Reviews, EarlyView.ABSTRACT Insects are the most abundant and ecologically important animal migrants. Yet, we know relatively little about the patterns and processes underlying insect migration. Dragonflies (Anisoptera) and damselflies (Zygoptera) comprise the ancient insect order Odonata, whose ancestors were the first organisms to fly on Earth.
Johanna S.U. Hedlund +3 more
wiley +1 more source
Clinical experience in late antiquity: Alexander of Tralles and the therapy of epilepsy. [PDF]
Med Hist, 2014 Bouras-Vallianatos P.
europepmc +1 more source
Humans are not unique: difficult birth is common in placental mammals
Biological Reviews, EarlyView.ABSTRACT Human childbirth is widely presumed to be uniquely difficult and dangerous compared to birth in other mammals. Tight fetopelvic proportions can result in obstructed labour and contribute to high rates of maternal and neonatal mortality. Ideas summarised under the ‘obstetrical dilemma’ have contributed to this assumption by explaining difficult
Nicole D. S. Grunstra
wiley +1 more source
Business Strategy and the Environment, EarlyView.ABSTRACT This paper examines how organizations in the automotive sector respond to the internal communication challenges posed by the transition to electric vehicle production. Unlike typical organizational change, electrification is driven not only by market forces but also by sociopolitical and regulatory pressures to reduce carbon emissions and ...
Tobias Hein +2 more
wiley +1 more source
Discovery of an Atypical Arp2/3 Complex in Malaria Parasites Sheds New Light on Nuclear Actin
Cytoskeleton, EarlyView.ABSTRACT The Arp2/3 complex is a key actin nucleator essential for cytoskeletal dynamics in eukaryotes. Previously believed absent in apicomplexan parasites, we recently identified an atypical Arp2/3 complex in malaria parasites consisting of five divergent subunits and a putative kinetochore‐associated factor.
Franziska Hentzschel +2 more
wiley +1 more source
Late antiquity: the twilight of mouldmade lamps
, 2020 The article examines clay lamp evolution in late antiquity and explores the probable reasons for the dominance of mouldmade lamps during the first Christian centuries and the possible causes which led to their disappearance at the close of late ...
Motsianos, Ioannis
core
Front Propagation Through a Perforated Wall
Communications on Pure and Applied Mathematics, EarlyView.ABSTRACT We consider a bistable reaction– diffusion equation ut=Δu+f(u)$u_t=\Delta u +f(u)$ on RN${\mathbb {R}}^N$ in the presence of an obstacle K$K$, which is a wall of infinite span with many holes. More precisely, K$K$ is a closed subset of RN${\mathbb {R}}^N$ with smooth boundary such that its projection onto the x1$x_1$‐axis is bounded and that ...
Henri Berestycki +2 more
wiley +1 more source
Parenthood in Late Antiquity: The Evidence of Chrysostom
Greek, Roman, and Byzantine Studies, 2005 [site under construction]
Douglas O'Roark
doaj