Results 121 to 130 of about 127,253 (313)

Histology and fossil diagenesis of a pterosaur tooth from the Crato Formation (Lower Cretaceous of Brazil)

open access: yesThe Anatomical Record, EarlyView.
Abstract Pterosaur dental biology remains poorly understood despite its importance for comprehending feeding strategies and flight adaptations. Here, we present the first comprehensive histological analysis of an ornithocheiriform pterosaur tooth from the Lower Cretaceous Crato Formation (Santana Group, Northeast Brazil).
Tito Aureliano   +3 more
wiley   +1 more source

Influenza-associated excess mortality in southern Brazil, 1980–2008

open access: yes, 2012
In order to estimate influenza-associated excess mortality in southern Brazil, we applied Serfling regression models to monthly mortality data from 1980 to 2008 for pneumonia/influenza- and respiratory/circulatory-coded deaths for all ages and for those ...
FREITAS, F. T. M.   +8 more
core   +1 more source

Cesarean birth and the nutritional development in childhood: results from a cohort in Southern Brazil

open access: yesRevista Brasileira de Obesidade, Nutrição e Emagrecimento, 2019
Background and aim: The cesarean births have increased, just like observed for obesity and overweight in childhood. This study aims to report the association between cesarean birth and the nutritional development status of 6/7-year-old.
Rodrigo Dias Nunes   +3 more
doaj  

Relation Between Major Climatic Indices and Subseasonal Precipitation in Rio Grande do Sul State, Brazil

open access: yesMeteorology
This study analyzed the correlation between climate indices—El Niño–Southern Oscillation (NINO34), Southern Oscillation Index (SOI), Antarctic Oscillation (AOC), Sea Surface Temperature in the southwestern Atlantic (ISSTRG2 + RG3), South Atlantic ...
Angela Maria de Arruda   +2 more
doaj   +1 more source

Neuroanatomical diversity in Teleocichla with new volumetric and histological insights into the encephalon of Teleocichla monogramma Kullander 1988

open access: yesThe Anatomical Record, EarlyView.
Abstract Teleocichla comprises small cichlids that inhabit the rapid streams of Amazonian rivers; however, there has been limited research on their encephalon morphology. This study examined the neuroanatomy of four species, focusing on volumetric measurements of their encephalon subregions, and providing a histological description of the encephalon of
Renan Leão‐Reis   +4 more
wiley   +1 more source

The skeleton of the green Iguana iguana (Squamata: Iguanidae) and its intraspecific morphological variation

open access: yesThe Anatomical Record, EarlyView.
Abstract The green iguana (Iguana iguana) is an iguanine lizard with herbivorous and arboreal habits, whose distribution spans through South America, Central America to the south of North America. Although the genus Iguana is well‐known, the species still lacks a comprehensive and up‐to‐date anatomical study, particularly addressing the axial skeleton,
Vieno Rosa   +2 more
wiley   +1 more source

Studies on Wrightoporia (Basidiomycota) from southern Brazil

open access: yes, 2014
Westphalen, Mauro C., Reck, Mateus A., Silveira, Rosa Mara Borges Da (2014): Studies on Wrightoporia (Basidiomycota) from southern Brazil. Phytotaxa 166 (1): 94-100, DOI: 10.11646/phytotaxa.166.1.7, URL: http://dx.doi.org/10.11646/phytotaxa.166.1.
Westphalen, Mauro C.   +2 more
core   +1 more source

Growth dynamics, skeletochronology, and histovariability of the theropod dinosaur Berthasaura leopoldinae

open access: yesThe Anatomical Record, EarlyView.
Osteohistological sampling on different bones of theropod dinosaur documents discrepant age record, growth, and metabolism. This could result unprecise paleobiological inferences if samplings are based on single bones. However, multi‐bone sampling can attenuate these discrepancies, helping to infer growth dynamics and physiology of these extinct ...
Geovane Alves de Souza   +3 more
wiley   +1 more source

Geographic location of study sites in central-southern Brazil.

open access: yes, 2016
Geographic location of study sites in central-southern Brazil.
Douglas L. Karlen (2552749)   +6 more
core   +1 more source

Dental crown morphological variation and heterodonty in carcharhiniform sharks

open access: yesThe Anatomical Record, EarlyView.
Abstract Elasmobranch teeth are highly mineralized structures that constitute the majority of the fossil record for this group. Despite their taxonomic and evolutionary significance, detailed descriptions of dental morphology remain scarce. The order Carcharhiniformes, the most diverse among sharks, comprises 304 valid species that display remarkable ...
Flávia Zanini, Karla D. A. Soares
wiley   +1 more source

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