Results 91 to 100 of about 410,984 (326)

Ontogenetic changes and sexual dimorphism in the cranium and mandible of the Atlantic walrus (Odobenus rosmarus rosmarus L.)

The Anatomical Record, EarlyView.
Abstract Walruses have been an important subsistence and cultural resource for humans and have been exploited for millennia across their distribution. This exploitation has contributed to severe declines in several populations and local extirpations.
Katrien Dierickx, Oliver Kersten, Youri van den Hurk, Brenna A. Frasier, Richard Sabin, Bastiaan Star, James H. Barrett   +6 more
wiley   +1 more source

Emergence of Primary Teeth in Children of Sunsari District of Eastern Nepal

McGill Journal of Medicine, 2020
: This study assessed the timing and eruption sequence of primary teeth in children of Sunsari district of Eastern Nepal and compared the eruption pattern of males & females between various, ethnic groups.
Anita Gupta, SS Hiremath, SK Singh, S Poudyal, SR Niraula, DD Baral, RK Singh   +6 more
doaj   +1 more source

Evolution of V838 Monocerotis during and after the 2002 eruption

, 2005
By fitting the available photometric data on V838 Mon with standard supergiant spectra we have derived principal stellar parameters, i.e. effective temperature, radius and luminosity, and followed the evolution of the object since its discovery in early ...
Tylenda, R.
core   +1 more source

Revisiting a long‐overlooked skull: Implications for the distribution of Dinodontosaurus brevirostris (Kannemeyeriiformes) in the Brazilian Triassic

The Anatomical Record, EarlyView.
Abstract Dicynodonts (Anomodontia: Dicynodontia) were one of the main groups of terrestrial tetrapods in Permian and Triassic faunas. In Brazil, the genus Dinodontosaurus is one of the most common tetrapod taxon in the Triassic Santa Maria Supersequence. This genus has a complex taxonomic history and is represented in the Triassic of both Argentina and
Julia Lara Rodrigues de Souza, João Lucas Da Silva, Voltaire D. P. Neto, Arielli Fabrício Machado, Juan A. Escobar, Felipe L. Pinheiro   +5 more
wiley   +1 more source

Light echoes reveal an unexpectedly cool Eta Carinae during its 19th-century Great Eruption

, 2011
Eta Carinae (Eta Car) is one of the most massive binary stars in the Milky Way. It became the second-brightest star in the sky during its mid-19th century "Great Eruption," but then faded from view (with only naked-eye estimates of brightness).
A Damineli, A Kashi, A Le Sueur, A Le Sueur, A Rest, A Rest, A Rest, A. Rest, AJ Cenarro, B. Sinnott, D. A. Howell, D. L. Welch, D. Minniti, DJ Frew, F. B. Bianco, H. E. Bond, I. Toledo, J. L. Prieto, K Davidson, K Davidson, K. Mandel, M. E. Huber, N Smith, N Smith, N Smith, N Smith, N Smith, N Smith, N Smith, N Smith, N. R. Walborn, N. Smith, NR Walborn, R. C. Smith, R. Chornock, R. J. Foley, RJ Foley, RM Humphreys, RM Humphreys, RM Humphreys, RW Goodrich, S Bagnulo, SD Van Dyk, W. Fong   +43 more
core   +1 more source

A detailed redescription of a skeletally immature ‘Redondasaurus’ suggests ontogenetic transformations in the taxon mirror phytosaurian morphological evolution

The Anatomical Record, EarlyView.
Abstract The study of morphological evolution is fundamentally tied to ontogeny, yet studies of these heterochronic processes in the fossil record are rare. Fossils belonging to an ontogenetic series are difficult to assign to an ontogenetic stage due to inconsistent proxies for skeletal ages, challenging to taxonomically assign due to morphological ...
Erika R. Goldsmith, Michelle R. Stocker
wiley   +1 more source

Impacts of a Pinatubo‐size volcanic eruption on ENSO

, 2017
Observations and model simulations of the climate responses to strong explosive low‐latitude volcanic eruptions suggest a significant increase in the likelihood of El Niño during the eruption and posteruption years, though model results have been ...
E. Predybaylo, G. Stenchikov, A. Wittenberg, F. Zeng   +3 more
semanticscholar   +1 more source

Skeletal pathologies in extant crocodilians as a window into the paleopathology of fossil archosaurs

The Anatomical Record, EarlyView.
Abstract Crocodilians, together with birds, are the only extant relatives to many extinct archosaur groups, making them highly important for interpreting paleopathological conditions in a phylogenetic disease bracketing model. Despite this, comprehensive data on osteopathologies in crocodilians remain scarce.
Alexis Cornille, Kyla Beguesse, Ewan Wolff, Clemens Zinner, Patrick Asbach, François Clarac, Florian Witzmann   +6 more
wiley   +1 more source

Supernumerary teeth in the premaxillary region: its effects on the eruption and occlusion of the permanent incisors

Australasian Orthodontic Journal, 1990
The presence of supernumerary teeth in the premaxillary region may cause a variety of pathological effects. This study was carried out to determine the various aspects of supernumerary teeth in the premaxillary region, particularly the effects of the ...
Nik-Hussein Nik Noriah
doaj   +1 more source

Eruption times and patterns of permanent teeth in school children of India

Indian Journal of Dental Research, 2011
Aim: To study the eruption pattern of permanent teeth excluding third molars in school children of Mysore, South India. Objectives: To compare the eruption times determined with previous studies.
Ambika Lakshmappa, Mahima Veeranna Guledgud, Karthikeya Patil   +2 more
doaj   +1 more source