Results 81 to 90 of about 7,228 (241)

Tooth morphology of the maned sloth (Bradypus torquatus) [PDF]

open access: yesBiotemas, 2006
The sloths are exclusively herbivores, feeding from leaves, flowers, sprouts, green stalks and fruits, just from two types of tree. The aim of this research was to explore the anatomy of the teeth comparing them with those of other mammals, besides those
Edson Benetti   +6 more
doaj  

Seleção das estruturas calcificadas para determinação da idade da piracatinga Calophysus macropterus Lichtenstein (Siluriformes: Pimelodidae) na Amazônia Central, Brasil Selection of calcificated structure for aging of the piracatinga, Calophysus macropterus Lichtenstein (Siluriformes: Pimelodidae) in the Central Amazon, Brazil

open access: yesActa Amazonica, 2003
O objetivo deste trabalho foi identificar a estrutura calcificada mais adequada para a determinação da idade da piracatinga (Calophysus macropterus). Foram analisados 440 indivíduos procedentes da pesca comercial e experimental do Baixo Solimões.
Alfredo Pérez, Nidia Noemi Fabré
doaj   +1 more source

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

Ocular morphology and morphometry of the great egret (Ardea alba): A comprehensive anatomical description

open access: yesThe Anatomical Record, EarlyView.
Abstract Ardea alba (Linnaeus, 1758) is widely distributed, yet knowledge of its ocular morphology remains limited. This study described the morphometry and morphology of the eyeball and its accessory glands in six specimens using radiography, morphometry, light and scanning electron microscopy, and 3D scanning.
Julia Vaz Feio   +6 more
wiley   +1 more source

Caveolin‐1 enriched apoptotic bodies derived from oral hard palate orchestrate bone remodeling to treat heterotopic ossification

open access: yesBMEMat, EarlyView.
Downregulated CAV1 in HO is restored via apoptotic bodies from PMSCs, which reprogram bone remodeling by delivering CAV1 to target cells, highlighting the therapeutic role of EV subtypes in heterotopic ossification. Abstract Heterotopic ossification (HO) is a pathological process characterized by ectopic bone formation in non‐osseous tissues, with an ...
Yuchen Wang   +13 more
wiley   +1 more source

Quantifying attributes of boring bivalve populations in corals using micro-computed tomography

open access: yesFrontiers in Marine Science
Bioerosion plays a crucial factor in shaping the structure and function of coral reef ecosystems, with bioeroders actively altering both the physical and ecological dynamics of coral substrates.
Netanel Kramer   +8 more
doaj   +1 more source

Mechanism study of an articular cartilage repair material and its forward‐looking test for space medicine

open access: yesBMEMat, EarlyView.
The regeneration process following dLhCG engraftment progressed through four distinct and interconnected stages. dLhCG maintained its regenerative efficacy after 6 months of cosmic exposure, supporting its potential application in space medicine.
Xu Hu   +8 more
wiley   +1 more source

Substrate stiffness regulates cell fate and its applications in the repair of motor system: From two dimensions to three dimensions

open access: yesBMEMat, EarlyView.
Substrate stiffness with different dimensions (2D and 3D) exerts a regulatory role in cellular behaviors, thereby governing cell fate decisions. Biomaterials with tunable stiffness exhibit substantial functional potential for the repair and regeneration of the motor system.
Zhiyuan Lu   +6 more
wiley   +1 more source

Restoring joint homeostasis: A dynamically adaptive meniscal scaffold prevents osteoarthritis by replicating native biomechanics

open access: yesBMEMat, EarlyView.
This work establishes a paradigm shift from static structural mimicry to dynamic functional replication. By restoring the native “compression‐to‐tension” mechanism, the scaffold ensures robust mechanical stability and superior chondroprotection.
Wan Li   +10 more
wiley   +1 more source

Regulation of early accelerated carbonation behavior in nano-modified cementitious materials under low concentration CO2

open access: yesJournal of Materials Research and Technology
Accelerated carbonation has emerged as a promising curing technique for cementitious materials, attracting increasing attention. However, the efficient utilization of low concentration CO2 sources in cementitious systems remains a significant challenge ...
Xu Chen   +8 more
doaj   +1 more source

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