Results 31 to 40 of about 57,770 (213)

Developmental morphology of claspers and clasper‐glands during maturation in Potamotrygon wallacei (Chondrichthyes: Potamotrygoninae)

open access: yesThe Anatomical Record, EarlyView.
Abstract The claspers are the copulatory organs in male elasmobranchs, responsible for directing the semen into the female cloaca (C). However, the microscopic morphology of the claspers remains poorly understood. This study describes the morphology of the claspers and clasper glands (CGs) of cururu stingray (Potamotrygon wallacei) at different ...
Matheus Samuel Cunha Braga   +4 more
wiley   +1 more source

Leishmanicidal and Immunomodulatory Effects of Ocellatin-PT4 and Ocellatin-PT6 on Amastigotes of Leishmania amazonensis

open access: yesFuture Pharmacology
Background/Objectives: Leishmaniasis is a neglected parasitic disease with significant global impact and limited therapeutic options due to the toxicity and cost of current treatments.
Mayara G. C. Oliveira   +13 more
doaj   +1 more source

The Renal Function of the Wild Rodent Cerradomys goytaca Reveals Adaptations in the Mechanisms of Urinary Concentration and Solute Excretion

open access: yesJournal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.
Renal adaptations of Cerradomys goytaca associated with survival in its natural habitat. Graphical Abstract of the main renal physiological characteristics identified in C. goytaca. This species exhibits an increased kidney mass index, elevated urine osmolality, and enhanced tubular water reabsorption, indicating a higher capacity for water ...
Luzia Agusta Valeriano‐Monici   +10 more
wiley   +1 more source

10ª Conferência da Rede Lusófona de Morfologia Urbana, Rio de Janeiro, 2022

open access: yes, 2023
Com expectativas renovadas segue o relato das atividades realizadas na 10ª Conferência Internacional da Rede Lusófona de Morfologia Urbana – Portuguese-language Network of Urban Morphology – PNUM 2022 – entre 29 de novembro e 1 de dezembro de 2022 ...
Eneida Maria Souza Mendonça
core  

ANÁLISE DE LÍQUIDO CEFALORRAQUIDIANO EM PACIENTES ONCOLÓGICOS PEDIÁTRICOS: IDENTIFICAÇÃO DE VARIABILIDADE ENTRE CENTROS BRASILEIROS DA ALIANÇA AMARTE E IDEALIZAÇÃO DE UM GUIA DE BOAS PRÁTICAS PARA EQUALIZAR PROCEDIMENTOS

open access: yesHematology, Transfusion and Cell Therapy
O exame de rotina de líquido cefalorraquidiano (LCR) é utilizado como auxiliar no diagnóstico, estratificação de risco e definição terapêutica de neoplasias hematológicas que acometem sistema nervoso central (SNC).
AF Oliveira   +9 more
doaj   +1 more source

Hummingbird interaction niche packing is influenced by species richness and resource availability in the southern tropical Andes

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Niche partitioning is often considered an important mechanism promoting species co‐occurrence in species‐rich communities. As species richness increases, niche partitioning may lead to different niche structures, including increased packing of species niches when the ...
Bryan G. Rojas   +3 more
wiley   +1 more source

Sensory Biology of the Franciscana (Pontoporia blainvillei, Pontoporiidae, Cetartiodactyla): Ontogenetic Modifications of Vibrissae and Vibrissal Crypts

open access: yesIntegrative Zoology, EarlyView.
The transition of cetaceans from a terrestrial to an aquatic environment involved a crucial sensory adaptation to environments with limited visibility. Vibrissae, important mechanoreceptors, undergo an ontogenetic transformation in odontocetes. This research describes the histomorphology of vibrissae and crypts at different developmental stages ...
Cecilia Mariana Krmpotic   +10 more
wiley   +1 more source

Unravelling the skin of the nurse shark: A morphological description of the placoid scales of Ginglymostoma cirratum

open access: yesJournal of Fish Biology, EarlyView.
Abstract Ginglymostoma cirratum, commonly known as the nurse shark, is a nocturnally active benthic shark, often found in western and eastern Atlantic waters. Although this shark has been well explored in many biological aspects, few studies have thoroughly examined the morphology of its dermal denticles (or placoid scales).
Danilo P. Lima   +7 more
wiley   +1 more source

Morfometria dos túbulos seminíferos e ductos epididimários de cães e gatos provenientes de cirurgia de castração

open access: yesBiotemas, 2002
Esta pesquisa teve como objetivo a avaliação morfométrica e comparativa de testículos e epidídimos entre as espécies canina e felina em diferentes idades provenientes de cirurgias de castração, processados histologicamente e incluídos em parafina.
Patrícia Hoshino   +4 more
doaj  

Immunostaining of βA-Activin and Follistatin Is Decreased in HPV(+) Cervical Pre-Neoplastic and Neoplastic Lesions

open access: yesViruses, 2023
The activin–follistatin system regulates several cellular processes, including differentiation and tumorigenesis. We hypothesized that the immunostaining of βA-activin and follistatin varies in neoplastic cervical lesions.
Victor Jesus Huaringa Payano   +7 more
doaj   +1 more source

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