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47 articles for “Peru”
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Research ArticleOpen accessEvery word in the titleWater Quality in Small-Scale Coffee Production Units, Amazonas, PeruEli Morales Rojas, Segundo Chávez Quintana, Magali García et al.The objective of this research was to determine water quality in small-scale coffee production units in the Amazon Region, Peru. The characterization of the factors associated with coffee farmers was collected through surveys. The Standard Methods for the Examination of Water and Wastewater (APHA) method was used to determine the physicochemical and microbiological parameters of the incoming water (AE) (water … …OnLine Journal of Biological Sciences, Vol. 22, Issue 4 · 11 Oct 2022 · 6,496 accessesView PDFCite
Review ArticleOpen accessEvery word in the titleSustainable Development from a Zootechnical Perspective in PeruJosé Américo Saucedo-Uriarte, Hurley Abel Quispe-Ccasa, Ilse Silvia Cayo-Colca, Manuel Emilio Milla PinoSustainable Development term was born in 1987 and referred to the satisfaction of human needs while preserving the planet resources. There are different interpretations of this definition, but generally, all agree that a Sustainable Development model must be economically viable, socially acceptable and environmentally benign. This manuscript proposes strategies from a zoo technical approach and their contribution to the path … …OnLine Journal of Biological Sciences, Vol. 21, Issue 4 · 3 Dec 2021 · 6,863 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEffect of Bacterial Inoculants on Agronomic Performance of Three Genotypes of Potato (Solanum tuberosum L.) in Coastal Areas of PeruSergio Eduardo Contreras Liza, Juan Carlos Custodio Laura, Doris Elizabeth Zúñiga Dávila, Sady García BendezúTo study the effect of interaction of plant genotypes and populations of microorganisms in the rhizosphere may be an important factor to assess the effectiveness of PGPRs on crop production. The objective of this research was to determine the effect of inoculation of four bacterial strains on the agronomic performance of three commercial cultivars of potato in the province of … …American Journal of Agricultural and Biological Sciences, Vol. 12, Issue 3 · 6 Nov 2017 · 8,275 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleAssessing the Environmental Impacts of Urban Growth Using Land Use/Land Cover, Water Quality and Health Indicators: A Case Study of Arequipa, PeruOswaldo Villena Carpio, Brian D. FathProblem statement: This research assesses the direct effects of urban expansion on land cover/use, river flow, water quality and the indirect effects of these variables in the rate of gastrointestinal disease in people in Arequipa, Peru through the combined use of satellite remote sensing and geographic information systems. Approach: It also uses information about demographic changes, hydrologic data and land … …American Journal of Environmental Sciences, Vol. 7, Issue 2 · 26 May 2011 · 8,741 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleSustainable Technology for Agriculture at Extreme Altitudes: Design and Evaluation of a Sprinkler Irrigation System in a Peruvian High Andean CommunityJuan Eduardo Suarez Rivadeneira, Freddy A. Manayay, Daniel Olivier Carranza Lizana et al.In high-altitude agroecosystems, erratic rainfall patterns and steep topography severely constrain crop productivity by exposing plants to soil water deficits during critical phenological stages. This study aimed to enhance the productivity of eleven staple and horticultural crops corn (Zea mays), tomato (Solanum lycopersicum), cucumber (Cucumis sativus), eggplant (Solanum melongena), lettuce (Lactuca sativa), carrot (Daucus carota), barley (Hordeum vulgare), celery (Apium … …OnLine Journal of Biological Sciences, Vol. 26, Issue 4 · 2 Oct 2026 · 645 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleWastewater Treatment Using Organic By-Products from Agroindustry: A Case Study in the District of Valera, Amazonas Region, Northern PeruEli Morales-Rojas, Sayda Karina García Caro et al.This research evaluates the use of two types of coagulants based on organic by-products (orange and passion fruit) in wastewater (RA) treatment. The system was composed of glass tanks installed in parallel. The coagulants were elaborated and applied in aqueous solution and in powder form, and 7 physicochemical and microbiological parameters were also analyzed. Data analysis was performed using a … …OnLine Journal of Biological Sciences, Vol. 26, Issue 2 · 2 Jul 2026 · 1,172 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleYield and Nutritional Value of Oats Associated With Vicia in High Andean Conditions of Puno, PeruMarcial Enciso Altamirano, Jimny Nuñez Delgado, Alexandrina Sotelo Méndez et al.The objective of the study was to determine the yield (Kg/ha) and nutritional value of the associated cultivation of oats (Avena sativa) and vicia (Vicia sativa) using different varieties and sowing proportions in high Andean conditions in the Puno region. Three oat varieties were selected: Tayko, Africana and Vilcanota I, and were sown in association with vicia in two proportions: … …OnLine Journal of Biological Sciences, Vol. 25, Issue 3 · 1 Sep 2025 · 5,471 accessesView PDFCite
Research ArticleOpen accessIn the keywordsA Mother Plant and Somatic Embryo Registry for the Propagation and Conservation of Artificial Seeds of the Orchid Phragmipedium kovachiiOsber Cunia, Manuel Oliva, Segundo G. Chavez et al.Phragmipedium kovachii, is an endemic orchid that naturally inhabits the humid zones of the Amazonas region in Peru. Currently, it has been extracted from its natural habitat, listed as critically endangered by CITES, suggesting searching for conservation strategies in vitro and in situ. Therefore, this research established an in vitro protocol to obtain and conserve artificial seed, through four events: … …OnLine Journal of Biological Sciences, Vol. 24, Issue 4 · 8 Jul 2024 · 5,302 accessesView PDFCite
Research ArticleOpen accessIn the author namesA Deep Learning Approach for Telugu Domain Identification with Multichannel LSTM-CNNBuddha Hari Kumar, Chitra Perumal, Inakoti Ramesh Raja et al.The vast growth of textual data has ushered into the limelight, a plethora of applications in information retrieval and natural language processing (NLP). Proper extraction of information from text is heavily dependent on recognizing the thematic content, which becomes crucial in the tasks of document summarization, information extraction, question answering, machine translation, and sentiment analysis. The great complexity of this … …Journal of Computer Science, Vol. 21, Issue 9 · 26 Nov 2025 · 2,395 accessesView PDFCite
Research ArticleOpen accessIn the author namesComparative Analysis of Binary Patterns Pyramid and Gabor Filters for Machine Learning-Based Nail Disease DetectionJagadeeswari Boopalan, Maruthu Perumal SabtharishiNail diseases, including Onychomycosis and Psoriasis, are common conditions that pose diagnostic challenges due to subtle clinical presentations and reliance on invasive methods. This study investigates the effectiveness of Binary Patterns Pyramid Filter (BPPF) and Gabor Filter (GF) as feature extraction techniques for machine learning-based nail disease detection, addressing three categories: Healthy, Onychomycosis, and Psoriasis. Using a dataset of 1,466 … …Journal of Computer Science, Vol. 21, Issue 8 · 2 Oct 2025 · 2,178 accessesView PDFCite