Results 31 to 40 of about 1,924 (156)

Anatomy and morphometric aspects of the trachea of Saimiri sciureus Linnaeus, 1758: knowledge for emergency procedures

open access: yesAnais da Academia Brasileira de Ciências, 2012
The aim of this work is to study the morphological characteristics of the trachea of Saimiri sciureus through quantification and measurement of the cartilaginous rings, providing information to facilitate the election of more appropriate endotracheal ...
Luane L. Pinheiro   +7 more
doaj   +1 more source

Disseminated Histiocytic Sarcoma in a Japanese Macaque (Macaca fuscata). [PDF]

open access: yesJ Med Primatol
ABSTRACT Histiocytic sarcomas are rare in humans and primates. Particularly, only a few examples in nonhuman primates have been reported. This is the first report of histiocytic sarcoma in Macaca fuscata. The final diagnosis was made using immunohistochemical analysis.
Sato M   +4 more
europepmc   +2 more sources

Morphological Characterization of Diaphragm in Common Squirrel Monkey (Saimiri sciureus)

open access: yesAnais da Academia Brasileira de Ciências, 2018
The wall of the diaphragm can be affected by congenital or acquired alterations which allow the passage of viscera between the abdominal and chest cavities, allowing the formation of a diaphragmatic hernia.
JOSÉ RICARDO N. DE SOUZA NETO   +3 more
doaj   +1 more source

Diversidad y abundancia de primates en hábitats del área de influencia de la carretera Iquitos–Nauta, Amazonía Peruana

open access: yesCiencia Amazónica (Iquitos), 2014
En este artículo se proporciona información sobre la diversidad, tamaño de grupo y densidad poblacional de primates para cada hábitat diferenciado en el área de estudio.
Rolando Aquino   +2 more
doaj   +3 more sources

Hemodynamic molecular imaging of tumor-associated enzyme activity in the living brain

open access: yeseLife, 2021
Molecular imaging could have great utility for detecting, classifying, and guiding treatment of brain disorders, but existing probes offer limited capability for assessing relevant physiological parameters.
Mitul Desai   +7 more
doaj   +1 more source

Visual acuity of “Saimiri sciureus” [PDF]

open access: yesPsychonomic Science, 1965
The visual acuity of the squirrel monkey was studied by the method of least separable lines. Five animals were studied in two different apparatuses by two different experimenters. Thresholds of 75% correct were established at 0.84 min. of visual angle. Decline in correct responses was well coordinated with increasing latency of response.
openaire   +2 more sources

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

Patterns of interspecific variation in labial microarchitecture among anthropoid primates and the evolution of the hominin lips

open access: yesThe Anatomical Record, EarlyView.
Comparative histological and semi‐automated image analysis of primate lips: Masson's trichrome‐stained sagittal sections were segmented to quantify the connective tissue, adipose, and muscular components, enabling interspecific comparisons of labial architecture.
Liat Rotenstreich   +5 more
wiley   +1 more source

Molecular data highlight hybridization in squirrel monkeys (Saimiri, Cebidae)

open access: yesGenetics and Molecular Biology
Hybridization has been reported increasingly frequently in recent years, fueling the debate on its role in the evolutionary history of species. Some studies have shown that hybridization is very common in captive New World primates, and hybrid offspring ...
Jeferson Carneiro   +3 more
doaj   +3 more sources

Study of humoral immune response in mammals immunized with Plasmodium falciparum antigenic preparations

open access: yesMemorias do Instituto Oswaldo Cruz, 1992
Six Plasmodium falciparum protein fractions, isolated under reducing conditions, were used to immunize mice, rabbits and the squirrel monkey Saimiri sciureus. Five or seven subcutaneous injections of each antigenic preparation, in conjunction with Freund'
Antonio B. Cruz Cubas   +7 more
doaj   +1 more source

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