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159 results for “Morphological Study”
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Research ArticleOpen accessIn the abstractFirst Morphoanatomical and Cytogenetic Characterization of Picria fel-terrae Lour.: A Local Accession from Dairi Regency, IndonesiaElimasni, Deny Supriharti, HaryatiPoguntano (Picria fel-terrae Lour.) plant has been widely recognized for its medicinal properties due to its bioactive compounds. However, fundamental biological studies, particularly on its phenological and cytogenetic characteristics, remain limited. This study aimed to characterize the vegetative morphology and karyotypic features of P. fel-terrae from Dairi Regency, North Sumatra, to provide a comprehensive cytogenetic database for future study and … …OnLine Journal of Biological Sciences, Vol. 26, Issue 2 · 17 Jul 2026 · 759 accessesView PDFCite
Research ArticleOpen accessIn the abstractTesticular Development in Holstein, F1 Crossbred Holstein-Gyr, Gyr, and Nellore Bulls During Puberty and Sexual Maturity in Tropical ConditionsGustavo Eduardo Freneau, Jose Domingos Guimaraes, Vicente Ribeiro Vale Filho, Arnhold EmmanuelContext: Puberty and sexual maturity are very important economic aspects in the beef industry and bull production. The aim of this study was to characterize and determine the sexual development of Bos taurus, Bos indicus, and F1 crossbreeds of these two subspecies of bulls and their testicular growth and shape. We observed the evolution of testicular development characteristics and seminal … …American Journal of Animal and Veterinary Sciences, Vol. 21, Issue 2 · 9 Jul 2026 · 1,204 accessesView PDFCite
Research ArticleOpen accessIn the abstractArabic Fake News Detection Across Generational Text Representations: From Traditional Models to Transformer-Based MethodologiesNoor M. AlkudahThe rapid proliferation of fake news on Arabic social media has amplified societal and political risks, yet research on automatic detection in Arabic remains limited due to scarce datasets, morphological complexity, and underexplored preprocessing strategies. This study presents a comprehensive benchmark for Arabic fake news detection, unifying seven Machine Learning (ML) algorithms, three Deep Learning (DL) models, and a transformer-based … …Journal of Computer Science, Vol. 22, Issue 4 · 17 Apr 2026 · 1,877 accessesView PDFCite
Research ArticleOpen accessIn the abstractUltrastructural Morphology of the Muscle System Organization in the Trematode Typhlocoelium cucumerinumIrina Yurievna Chidunchi, Ainagul Balgauovna Kaliyeva, Natalya Petrovna Korogod et al.Trematodes, also known as flatworms, are a diverse group of parasitic organisms that live in a variety of ecosystems, from freshwater to marine habitats. Their complex life cycle often involves intermediate and definitive hosts and multiple developmental stages. Trematodes have unique morphological features that allow them to adapt, move and parasitize within host tissues and organs. The parasitic lifestyle of … …OnLine Journal of Biological Sciences, Vol. 24, Issue 4 · 1 Jun 2024 · 5,116 accessesView PDFCite
Research ArticleOpen accessIn the abstractRespondent’s Perception on Anthropogenic Determinants of Gully Erosion in Upper Imo River Basin (UIRB), Southeastern NigeriaChibo Christian Nnamdi, Oluoyin Adeola FashaeGully erosion has been acknowledged as one of the global environmental issues that affect the region's economy. It is caused by man in his quest to make a living through different economic activities. This research was carried out to investigate the perception of the people in gully-prone areas on the anthropogenic determinants of gully erosion within a headwater. Various economic … …American Journal of Environmental Sciences, Vol. 19, Issue 4 · 21 Feb 2024 · 5,547 accessesView PDFCite
Research ArticleOpen accessIn the abstractPrincipal Component Analysis of the Female Pengging Soloan Duck Based on Morphometric TraitsRini Nur Hayati, Subiharta, Yudi Adinata et al.The Pengging Soloan duck is an emerging indigenous genetic resource from Central Java, Indonesia, recognized for its adaptability and egg-laying potential. However, its phenotypic characterization remains limited compared with established Indonesian duck breeds such as Mojosari, Tegal, and Magelang ducks. This study aimed to characterize 70 adult female Pengging Soloan ducks aged 5 6.5 months using Principal Component Analysis (PCA) … …American Journal of Animal and Veterinary Sciences, Vol. 21, Issue 3 · 10 Sep 2026 · 952 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of Granulated Sudan Grass Feed on the Fattening Performance and Meat Quality of Young CattleIlmaliyev Zhanserik, Аlpeisov ShokhanThe aim of the study was to examine the effectiveness of various methods of Sudan grass forage preparation and their impact on the meat productivity of young cattle. The scientific and economic experiment was conducted at the “Tulpar” peasant farm in the Almaty region in 2023–2024. Forty Aulie-Ata breed bulls were selected for the experiment and divided into a control … …American Journal of Animal and Veterinary Sciences, Vol. 21, Issue 2 · 6 Jul 2026 · 1,206 accessesView PDFCite
Research ArticleOpen accessIn the abstractBarcode of Life Data Systems (BOLD) Versus GenBank Molecular Identification of a Dragonfly from the UAE in Comparison to the Morphological IdentificationNoora Almansoori, Mohamed Rizk Enan, Mohammad Ali Al-DeebDragonflies are insects in the order Odonata. They inhabit freshwater ecosystems and are found in the UAE. To date, few checklists have been published for the local dragonflies and the used identification keys are not comprehensive of Arabia. The aim of this study was to provide a molecular identification of a dragonfly based on the mitochondrial Cytochrome c Oxidase subunit … …OnLine Journal of Biological Sciences, Vol. 19, Issue 4 · 30 Nov 2019 · 8,221 accessesView PDFCite
Research ArticleOpen accessIn the abstractAutomatic Counting for Live and Dead Cells from Trypan Blue-Stained Images by Image Analysis Based on Adaptive K-Means ClusteringSu Mon Aung, Kanyanatt Kanokwiroon, Tonghathai Phairatana, Surapong ChatpunComputer-assisted image analysis can be employed to reduce the time consumed in the routine task such as cell counting. This study aimed to establish a method to perform this routine task based on an image analysis to automatically count live and dead cells after staining with trypan blue dye. Gray scale conversion and morphological operation were applied to the input … …Journal of Computer Science, Vol. 15, Issue 2 · 1 Mar 2019 · 8,571 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of Slum Water on Physiology of Heteropneustes fossilis Collected from Silchar, AssamRubina Roy, Bijoy Brahma, Satabdi Bhattacharjee, Soumitra NathPoverty and overpopulation are not just prevailing in big cities, but have also become a matter of concern in small towns. Safe drinking water is considered a basic human need, yet millions of people do not have access to an adequate and safe water supply. The present study is focused on the quality assessment of water bodies of slum areas … …American Journal of Animal and Veterinary Sciences, Vol. 14, Issue 1 · 11 Feb 2019 · 7,917 accessesView PDFCite