Results 101 to 110 of about 391,158 (311)

Inside a duck‐billed dinosaur: Vertebral bone microstructure of Huallasaurus (Hadrosauridae), Upper Cretaceous of Patagonia

open access: yesThe Anatomical Record, EarlyView.
Abstract Dinosaurs evolved a unique respiratory system with air sacs that contributed to their evolutionary success. Postcranial skeletal pneumaticity (PSP) has been used to infer the presence of air sac systems in some fossil archosaurs. While unambiguous evidence of PSP is well documented in pterosaurs and post‐Carnian saurischians, it remains absent
Tito Aureliano   +3 more
wiley   +1 more source

New and additional records of Salmoneus Holthuis, 1955 (Decapoda, Caridea, Alpheidae) from Brazil, with a key to the southern Atlantic species

open access: yesPapéis Avulsos de Zoologia, 2013
Two species of the alpheid shrimp genus Salmoneus Holthuis, 1955, are reported from shallow waters of São Sebastião (SP), southeastern Brazil. Salmoneus depressus Anker, 2011 is recorded for the first time in Brazil and the southwestern Atlantic; this ...
Arthur Anker   +3 more
doaj   +1 more source

Canine Leishmaniasis in a Recent Endemic Region in Southern Brazil

open access: yes
Leishmania infantum is an hemopathogen of importance for the health of domestic dogs (Canis lupus familiaris), causing canine leishmaniasis (CanL), as well as it is the etiological agent of human visceral leishmaniasis (HVL). This parasite was not reported in southern Brazil until the early 2000s, but CanL and HVL were increasingly reported in the last
Aline Padilha de Fraga   +9 more
openaire   +1 more source

Depression in the elderly of a rural region in Southern Brazil.

open access: yesCiencia & saude coletiva, 2021
The aim of this study is to estimate the prevalence of depression and its associated factors in elderly residents of the rural area of Rio Grande/RS. In this cross-sectional population-based study performed with 994 elderly (≥ 60 years), whose sampling was based on the 2010 Demographic Census, the Patient Health Questionnaire 9 (PHQ-9) was used for ...
Mariana Lima, Corrêa   +3 more
openaire   +1 more source

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

open access: yesThe 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   +5 more
wiley   +1 more source

A key to the known larvae of south american Elmidae (Coleoptera: Byrrhoidea), with a description of the mature larva of Macrelmis saltensis Manzo. [PDF]

open access: yes, 2008
A key to identify the known mature larvae of the South American genera of the family Elmidae is provided. The key includes seven genera presently assigned to the subfamily Larainae and 15 genera assigned to the subfamily Elminae.
Archangelsky, Miguel   +1 more
core   +1 more source

From armadillos to sloths: Patterns and variations in xenarthran coronary anatomy

open access: yesThe Anatomical Record, EarlyView.
Abstract Species of the superorder Xenarthra play a vital ecological role in the Neotropics. Despite their evolutionary significance, anatomical studies on their coronary circulation remain scarce. This study investigated the coronary anatomy of 82 hearts from nine Xenarthra species across the Dasypodidae, Myrmecophagidae, and Bradypodidae.
Wilson Viotto‐Souza   +5 more
wiley   +1 more source

AN OVERVIEW OF DENGUE IN THE SOUTHERN REGION OF BRAZIL FROM 2001 TO 2017

open access: yesCogitare Enfermagem, 2018
Objective:To record cases reported as classical dengue fever and deaths in the southern region of Brazil between 2001 and 2017. Method:Descriptive-retrospective study using secondary data from DATASUS/ SINAN and State Departments, analyzed through ...
Andréia Dalla Vecchia   +2 more
doaj   +1 more source

Multiple introductions and gene flow in subtropical South American populations of the fireweed, Senecio madagascariensis(Asteraceae)

open access: yesGenetics and Molecular Biology, 2016
Non-indigenous plants exhibit different attributes that make them aggressive competitors with indigenous plants and serious threats to biodiversity.Senecio madagascariensis (fireweed, Asteraceae), a native from southern Africa, is a strong competitor in ...
Geraldo Mäder   +3 more
doaj   +1 more source

Do the recent severe droughts in the Amazonia have the same period of length? [PDF]

open access: yes, 2015
We propose a new measure based on drought period length to assess the temporal difference between the recent two severe droughts of 2005 and 2010 in the Amazonia.
Kurths, Jürgen   +4 more
core   +3 more sources

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