Results 71 to 80 of about 410,633 (280)

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

The 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, Grazyelle Sebrenski da Silva, Maria Inês Braga de Oliveira, Jaydione Luiz Marcon, Ruben Dario Morales Gamba   +4 more
wiley   +1 more source

Sferolites from the Banská Štiavnica rhyolite [PDF]

Acta Montanistica Slovaca, 1998
Besides accessory minerals from the Banská Štiavnica rhyolite we found 0.12-0.09 mm sferolites in the heavy fraction. The sferolites are of different sizes, colours and compositions.
Jakabská Katarína
doaj  

Integrated microanatomy and microstructure of the maxillary tooth plate reveal a reinforced feeding system and tougher diet in Late Triassic Hyperodapedontinae (Rhynchosauria, Archosauromorpha)

The Anatomical Record, EarlyView.
Abstract Hyperodapedontine rhynchosaurs possessed a unique oral apparatus, long interpreted as an adaptation for processing abrasive and resistant plant material. However, the microanatomical and histological evidence supporting this interpretation remains poorly documented.
Caio A. Scartezini, Pedro L. B. Pruciano, Brodsky D. M. Farias, Marina B. Soares   +3 more
wiley   +1 more source

Hydrothermal alteration processes in monzogranite: a case study from the Eastern Desert of Egypt: implications from remote sensing, geochemistry and mineralogy

Geochemical Transactions
The South Eastern Desert (SED) of Egypt is one of the most promising areas in Egypt; it is widely explored for exploring the rare earth elements (REEs) and uranium-bearing ores. It is a main part of the Arabian-Nubian Shield (ANS). Therefore, the present
Amira M. El Tohamy
doaj   +1 more source

Tooth histotype and enameloid microstructure of Priohybodus arambourgi d'Erasmo, 1960 (Elasmobranchii: Hybodontiformes) from the Late Jurassic of northeastern Brazil

The Anatomical Record, EarlyView.
Abstract Sharks possess varied diets and different prey capture mechanisms. As a result, the group exhibits a significant diversity in dental morphology, also reflecting the internal structures of the teeth. Internal dental anatomy points to the existence of three histotypes in elasmobranch phylogeny: orthodont, osteodont, and pseudoosteodont ...
Kelly Roberta da Silva, Valéria Gallo, Estevan Eltink   +2 more
wiley   +1 more source

Exotic accessory minerals in layered chromities of the Campo Formoso complex (Brazil)

Geologica Acta, 2006
The Campo Formoso stratiform intrusive complex, in Bahia State, Brazil, considered to be of Paleoproterozoic age, consists of a tabular body of ultramafic rocks about 40 km long and 100-1100 m wide.
F. ZACCARINI, G. GARUTI, R. MARTIN
doaj   +1 more source

Orthobiologic Injections Adjunctive to Cartilage‐Preserving Surgery May Improve Outcomes for Focal Knee Chondral Defects: A Systematic Review of Randomized Controlled Trials With Subgroup Meta‐analyses

Arthroscopy, EarlyView.
Purpose To perform a systematic review evaluating the efficacy of orthobiologic injections as adjuncts to cartilage‐preserving surgery in improving clinical, radiographic, and histologic outcomes in adults with focal knee cartilage defects. Methods Four databases (PubMed, MEDLINE, EMBASE, and Scopus) were searched through September 2025 for randomized ...
Benjamin Blackman, Alexandru Pulbere, Seth Ybema, Marc Daniel Bouchard, Prushoth Vivekanantha, Praveen Sritharan, Darren de SA, Olufemi R. Ayeni, Jeffrey Kay   +8 more
wiley   +1 more source

Integration of Nutrition and Organic Agriculture Framework in Managing Gastrointestinal Nematodes in Ruminants

Animal Research and One Health, EarlyView.
Gastrointestinal nematode infections damage the gastrointestinal epithelial tissues of ruminants, affecting nutrient utilization and overall production performance. This review outlines host‐gastrointestinal nematode interactions and discusses integrated control strategies, including nutritional supplementation, grazing management, vaccines, and ...
Wenxun Chen, Xiangfang Tang, Yimin Zhuang, Shengjun Zhao, Ying Ren, Xiaokang Lv   +5 more
wiley   +1 more source

Arthroscopic Supraspinatus Repair With Bioinductive and Mechanical Reinforcement Using a Biocomposite Scaffold

Arthroscopy Techniques, EarlyView.
Abstract Rotator cuff repair failure remains a major challenge, particularly in large, chronic, and revision supraspinatus tears. Structural failure is multifactorial and involves both mechanical insufficiency and compromised biologic healing capacity. Retear rates in large and massive tears have been reported between 20% and 70%.
Gonzalo Gomez, Myriam Capasso, Geiner M. Gomez, Diego Bourlot, Pablo Colombo, Kennet Fabricio Aguirre Trujillo   +5 more
wiley   +1 more source

Manganese mineralization on Belyaevsky Seamount, the Sea of Japan: Literature review and new data

Вестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле, 2019
The paper gives systematized and generalized information on manganese formations from the northern and southern summits of Belyaevsky Seamount in the Sea of Japan. This information shows that low-temperature hydrothermal fast-growing crusts are spread on
Kolesnik O.N., Yaroshchuk E.I.
doaj   +1 more source