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Research ArticleOpen accessIn the keywordsMonitoring of Vegetation Degradation in various Landscapes of the Moyinkum Desert, KazakhstanOmirzhan Taukebayev, Bektemir Osmonali, Salavat Duisenbayev et al.This study is devoted to assessing the degree of vegetation degradation in various landscapes of the Moyinkum Desert, taking into account the taxonomic diversity of flora, the structure of phytocenoses, and the agrochemical condition of soils. The aim of the work was to identify areas with signs of disturbance and to analyse the factors determining degradation processes. It was established … …OnLine Journal of Biological Sciences, Vol. 26, Issue 2 · 17 Jul 2026 · 857 accessesView PDFCite
Research ArticleOpen accessIn the keywordsDynamics of Mobile Phosphorus and Potassium in the Soils of Agricultural Lands of Kostanay RegionAlmabek Nugmanov, Aliya Yskak, Tatiana Paramonova et al.Soil phosphorus deficiency is a growing constraint on crop productivity in the agricultural lands of the Kostanay Region, Republic of Kazakhstan, yet systematic data on the spatial dynamics of mobile phosphorus and potassium across soil types remain limited. This study assessed the availability of mobile forms of phosphorus and potassium, alongside key physicochemical properties, including soil pH and cation exchange … …OnLine Journal of Biological Sciences, Vol. 26, Issue 1 · 14 Apr 2026 · 1,603 accessesView PDFCite
Research ArticleOpen accessIn the keywordsEvaluation of the Water Quality of Dakhla Bay (South Morocco): Qualification and Classification According to the European MethodologyZohra Saad, Orbi Abdellatif, El Khattat Mahmoud, Oudra BrahimDakhlabay has become a center of socio-economic interest in southern Morocco due toits geographical location and its biological richness. During the last decade,several projects have been installed and the exploitation of this ecologicalniche has increased. Faced with this situation, it was necessary to assess thequality of the waters of Dakhla bay and determine its current ecologicalstatus. To do this, the … …American Journal of Environmental Sciences, Vol. 18, Issue 4 · 28 Sep 2022 · 6,813 accessesView PDFCite
Research ArticleOpen accessIn the keywordsForecasting the Diffuse Solar Radiation by using a New Modeling over Saudi ArabiaSamy A. KhalilWithin the arranging and execution assessment of solar energy projects, particularly within the planning and estimation of solar photovoltaic sources as elective energy sources within the future, exact evaluation of Diffuse Solar Radiation (DSR) is one of the essential and basic issues. The target of this article is to use the new model to predict DSR in four different locations … …American Journal of Applied Sciences, Vol. 18, Issue 1 · 5 May 2021 · 7,354 accessesView PDFCite
Research ArticleOpen accessIn the keywordsDevelopment and Implementation of the HACCP System on the Production Line of Kefir from Goat's MilkGaukhar Yussupova, Dina Kurmangaliyeva, Zhazira Shadyarova et al.The purpose of this work is to develop a HACCP plan with the subsequent implementation of the HACCP system to ensure the safety of production of kefir from goat's milk produced in the "Breeding farm" Zerenda "LLP in the Akmola region. When implementing HACCP defined policy and security of products, the scope of the HACCP system, the appointment of working … …OnLine Journal of Biological Sciences, Vol. 20, Issue 3 · 9 Oct 2020 · 8,366 accessesView PDFCite
Research ArticleOpen accessIn the keywordsEstimation and Reliability for a Special Type of Semi-Markov ProcessVlad Stefan Barbu, Alex Karagrigoriou, Andreas MakridesThis work deals with multi-state systems modelled by means of semi-Markov processes. The sojourn times are seen to be independent not identically distributed random variables and assumed to belong to one of two different general classes of distributions so that the first class is closed under maxima and the second one is closed under minima. We obtain maximum likelihood estimators … …Journal of Mathematics and Statistics, Vol. 15, Issue 1 · 20 Oct 2019 · 7,049 accessesView PDFCite
Research ArticleOpen accessIn the keywordsModeling and Forecasting of International Tourism Demand in ASEAN CountriesAsrin Karimi, Pouya Faroughi, Khalid Abdul RahimThis study attempts to find the best model to forecast international tourism demand using a series of key macroeconomic variables in ASEAN countries. Generally, we find that generalized Poisson regression model is the best one for estimating long-run international tourism demand. In addition, we find that inflation and real exchange rate have negative relationship with international tourism demand. On the … …American Journal of Applied Sciences, Vol. 12, Issue 7 · 8 Aug 2015 · 7,944 accessesView PDFCite
Research ArticleOpen accessIn the abstractMonitoring of the Saiga Population: Balancing Nature and AgricultureZhanbolat Ibraibekov, Saule Atshabarova, Ermek Gabdullin et al.The rapid recovery of the Saiga population (Saiga tatarica) in Kazakhstan represents a significant conservation success; however, it has simultaneously generated complex ecological and socio-economic challenges in steppe ecosystems. This study evaluates the relationships between Saiga population density and pasture ecosystem condition and identifies ecological thresholds relevant to balancing biodiversity conservation and sustainable agricultural land use. The research is based … …OnLine Journal of Biological Sciences, Vol. 26, Issue 4 · 27 Oct 2026 · 50 accessesView PDFCite
Research ArticleOpen accessIn the abstractIntegrated Assessment of Water Resource Sustainability in the Upper Amojú River Basin, Northern Peruvian AndesJuan Eduardo Suarez-Rivadeneira, Freddy A. Manayay, Mayra Pamela Musayón Diaz et al.This study presents a comprehensive, statistically robust assessment of water resource sustainability in the upper section of the Amojú River Basin, Province of Jaén northern Peruvian Andes, using the Sarandón multi-cirteria methodology. A stratified convenience sample of n = 887 households distributed across 22 localities was surveyed, achieving a margin of error of ±2.61% at the 95% confidence level (finite-population … …OnLine Journal of Biological Sciences, Vol. 26, Issue 4 · 26 Sep 2026 · 731 accessesView PDFCite
Research ArticleOpen accessIn the abstractCoupling Analysis of Thermodynamic Equilibrium of Mass Transfer and Microbial Community Succession in Multiphase System of Dark Tea Solid-State FermentationZhanjun Liu, Jiawei Sun, Taotao Li et al.During the solid-state fermentation of dark tea, the limited material migration, the dynamic evolution of the thermodynamic equilibrium state, and the highly dynamic succession of the microbial community make it difficult to analyze the quality formation mechanism systematically. Traditional research has focused on microbial diversity or sensory quality analysis, lacking a systematic discussion on the regulatory effects of material migration … …American Journal of Biochemistry and Biotechnology, Vol. 22, Issue 3 · 10 Aug 2026 · 1,017 accessesView PDFCite