Results 201 to 210 of about 152,666 (314)

Influence of kinematic parameters and tooth geometry on gear tooth root load capacity

open access: yes, 2017
Spur gear load carrying capacity and mass are primarily dependent of the tooth root stress. Geometric and kinematic parameters of gear teeth pairs produce multiple effects on the tooth root stress: through tooth root critical section location and root ...
Ristivojević, Mileta, Lazović, Tatjana
core  

Placental crises: disruptive selection and maternal under‐investment as the foundations of mammalian placental evolution and dysfunction

open access: yesBiological Reviews, EarlyView.
ABSTRACT Among the vertebrates, mammals are notable for the dominance of live birth and placental nutrition. The structural diversity of the mammalian placenta is remarkable, despite sharing a single common ancestor and conserved physiological functions.
Davis Laundon   +5 more
wiley   +1 more source

A potential role of p75NTR in the regulation of circadian rhythm and incremental growth lines during tooth development. [PDF]

open access: yesFront Physiol, 2022
Yuan H   +9 more
europepmc   +1 more source

Diet of bird‐like troodontid dinosaurs: synthesis of a contentious clade

open access: yesBiological Reviews, EarlyView.
ABSTRACT Troodontidae is a clade of small‐to medium‐sized maniraptoran theropods that mainly lived in Laurasia (modern Asia, North America and Europe) during the Jurassic and Cretaceous periods and are believed to have had a variety of diets. The uniqueness of troodontid teeth suggests that they diverged from the typical flesh‐based diet of non‐avian ...
Yui Chi Fan   +2 more
wiley   +1 more source

Profiling and functional characterization of long noncoding RNAs during human tooth development. [PDF]

open access: yesInt J Oral Sci
Gu X   +13 more
europepmc   +1 more source

Loss, persistence and reversal of phenotypic traits

open access: yesBiological 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

Localizations of Laminin Chains Suggest Their Multifaceted Functions in Mouse Tooth Development. [PDF]

open access: yesInt J Mol Sci
Liang T   +8 more
europepmc   +1 more source

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