Results 71 to 80 of about 1,381,338 (248)
Abstract This study investigated the physiological and morphological adaptations of the liver of the carnivorous fish Pygocentrus nattereri (piranha) in response to seasonal variations (dry and rainy seasons) in the Brazilian Pantanal. The objective was to describe how the liver, a central organ in metabolic regulation, responds to environmental ...
Maria Eduarda Corona Garcia +9 more
wiley +1 more source
The purpose of this study was to determine the characteristics of the effect of different levels of electromagnetic radiation on biometric indicators and yields of major agricultural crops, such as wheat, corn, and soybeans.
A. Stavinskiy +4 more
doaj +1 more source
Abstract The preauricular sulcus has long been debated as a pelvic feature variably attributed to obstetric stress, ligamentous traction, and broader biomechanical processes. To clarify its determinants, we analyzed 409 adult individuals from three archeological and one early modern skeletal collection from the Iberian Peninsula, integrating graded ...
Rebeca García‐González +5 more
wiley +1 more source
Dental anomalies in Pleistocene African hippopotamuses from Olduvai Bed II
Abstract Hippopotamuses are key palaeoenvironmental indicators in African Pleistocene ecosystems due to their ecological dependence on permanent water bodies and their frequent representation in the fossil record. This study examines dental anomalies in Hippopotamus cf. gorgops from several localities in Bed II of Olduvai Gorge (Tanzania), dated to ca.
Darío Fidalgo +4 more
wiley +1 more source
Japanese red pine (Pinus densiflora Siebold et Zucc.) is a rare and endangered species found in the south of Primorsky Krai, having significant economic importance.
Valentina Y. Ostroshenko
doaj +1 more source
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
State and ameliorative properties of old original oak stands
The ameliorative properties of forest stands are essential for developing effective measures for environmental protection and sustainable use of forest resources.
V. Maliuha +4 more
doaj +1 more source
Missing data estimation in multi-biometric identification and verification
S.41-45In the practical use of multi-biometric solutions, biometric sources involved in producing the verification or identification decision do occasionally fail to produce results. This work discusses solutions for missing data in multi-biometric score-
Damer, Naser +2 more
core +1 more source
Abstract The organization and function of reptilian excurrent ducts remain poorly characterized, particularly in Neotropical snakes. We provide the first integrative morphological, histochemical, immunohistochemical, and ultrastructural analysis of the proximal post‐testicular ducts of Crotalus durissus across reproductive stages.
Flávia Cappuccio de Resende +9 more
wiley +1 more source
The article considers the prospects of using microbiological preparations for growing planting material of valuable and rare juniper species whose natural regeneration is difficult.
A. I. Degtyarev, G. V. Barayshchuk
doaj +1 more source

