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151 articles for “Microorganism”
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Review ArticleOpen accessIn the keywordsAbout the Cyanobacteria and StromatolitesFlorian Ion Tiberiu Petrescu, Liviu Marian UngureanuStromatolites are layered biochemical accretionary structures formed in shallow water by the trapping, binding and cementation of sedimentary grains in biofilms (specifically microbial mats), especially cyanobacteria. Stromatolites occur widely in the fossil record of the Precambrian but are rare today. Life on Earth was born at least 3.7 billion years ago, but since then the number of living things has … …OnLine Journal of Biological Sciences, Vol. 22, Issue 1 · 17 Feb 2022 · 8,230 accessesView PDFCite
Research ArticleOpen accessIn the keywordsImpact Assessment of Soil Contamination with Antibiotics (for Example, an Ordinary Chernozem)Yuliya Viktorovna Akimenko, Kamil Shagidullovich Kazeev, Sergey Ilyich KolesnikovThe environmental behavior of antibiotics is not well known and the precise environmental risk assessment is not practical. We studied the impact antibiotics (benzylpenicillin, pharmasin and nystatin) at different concentrations (100 and 600 mg kg-1) on population densities of microorganisms and enzymatic activity of ordinary chernozems in model experiments. The applied doses of antibiotics had definite suppressing effects on population … …American Journal of Applied Sciences, Vol. 12, Issue 2 · 29 Apr 2015 · 7,852 accessesView PDFCite
Research ArticleOpen accessIn the keywordsAssociated Health Effects among Residences Near Jeleeb Al-Shuyoukh LandfillK. Schrapp, N. Al-MutairiProblem statement: There is growing concern about landfill adverse health effects from exposure to landfill emissions. Approach: Airborne dust samples from houses near Jeleeb Al-Shuyoukh landfill and control residences were analyzed for molds and bacteria and Volatile Organic Compounds (VOCs) each month for one year. Results: The number of mold species was greater in the residences close to Jeleeb Al-Shuyoukh … …American Journal of Environmental Sciences, Vol. 6, Issue 2 · 16 Jun 2010 · 7,619 accessesView PDFCite
Research ArticleOpen accessIn the keywordsPossibilities of Stabilizing Soil Biological Activity by Treating Seeds With a Biological Preparation Based on Phosphate Mobilizing Bacteria in the Conditions of the Aral Sea Region of KazakhstanZhanar Zhumadilova, Laura Tokhetova, Shorabayev Yerik et al.This study examined the effect of Phosphate-Mobilizing Bacteria (PMB) as a pre-sowing treatment for forage crop seeds. The objective was to assess the potential of these bacterial biopreparations to improve both crop productivity and soil fertility. Research methods included agrochemical, microbiological, and conventional field analyses. The findings revealed that pre-sowing seed treatment with PMB increased crop yields by 7.4% to … …OnLine Journal of Biological Sciences, Vol. 26, Issue 4 · 24 Sep 2026 · 642 accessesView PDFCite
Research ArticleOpen accessIn the keywordsOptimization of Temperature and pH for Protease Production from Some Bacterial Isolates of Mangrove WatersFeskaharny Alamsjah, Yorasakhi Ananta, Anthoni AgustienProtease enzymes are widely used in biotechnology to produce amino acids and peptides from high molecular substrates, as well as in the leather industry for wastewater treatment, textiles, pharmaceuticals, cosmetics, leather processing, and poultry industry. Indonesia's demand for protease enzymes is increasing. This study aims to optimize the temperature and pH for the production of protease from certain bacterial isolates … …OnLine Journal of Biological Sciences, Vol. 24, Issue 4 · 11 Sep 2024 · 4,425 accessesView PDFCite
Research ArticleOpen accessIn the keywordsAn Effect of the World Health Organization's "My Five Moments for Hand Hygiene": An Initiative on Hand-Hygiene Knowledge, Beliefs, Attitudes and Compliance Among Certified Nursing Assistants Working in A Health Care FacilityCatherine Turkett KamaraAccording to the CDC, an estimated four million Americans reside in long-term care facilities in the United States, among which one to three million life-threatening infections occur every year. These infections at long-term care facilities are a major cause of hospitalizations and death. The purpose of this research project was to provide a nonrandomized pretest/posttest on knowledge, belief, attitudes and … …International Journal of Research in Nursing, Vol. 11, Issue 1 · 5 May 2020 · 23,638 accessesView PDFCite
Research ArticleOpen accessIn the keywordsBiosorption of Textile Dye Using Immobilized Bacterial (Pseudomonas aeruginosa) and Fungal (Phanerochate chrysosporium) CellsNatarajan Saravanan, Tiruvenkadam Kannadasan, Chiya Ahmed Basha, Veerasamy ManivasaganWastewater containing dyes presents a serious problem due to its high toxicity which leads to creating enormous environmental pollution and ecological hazards. Therefore the removal of the high stable dyes from the textile effluents is of major importance. The purpose of this study is to remove the reactive dye Procion Blue 2G from textile dye solution by biosorption process using … …American Journal of Environmental Sciences, Vol. 9, Issue 4 · 16 Sep 2013 · 7,350 accessesView PDFCite
Research ArticleOpen accessIn the keywordsIncreasing Immunity in Young Cattle Through the Use of the Probiotic Preparation Lactobact-ARZMyktybaeva Raya, Alpeisov Shokhan, Kozhakhmetova Zubaira, Kyrgyzbay NazymAccording to the Kazakhstan national animal health monitoring system, the mortality rate of young farm animals ranges from 4.2% to 7.8%, with gastrointestinal diseases being the main registered condition. This study aimed to create a locally produced probiotic, formulated using a consortium of lactic acid bacteria, to enhance the immune function of young farm animals. The study utilized a newly … …American Journal of Animal and Veterinary Sciences, Vol. 20, Issue 3 · 3 Dec 2025 · 2,272 accessesView PDFCite
Literature ReviewOpen accessIn the keywordsControl of Contamination of Tissue Plant Cultures During in Vitro Clonal MicropropagationIrina Anikina, Nursultan Kaynidenov, Dora Dayu Rahma Turista et al.Plant micropropagation is currently an important method for modern large-scale propagation of valuable plant crops. Among the risks limiting the success of this method is the contamination of cultured plants. Conventional surface sterilization methods are not always effective against internal infection of plant tissues, and secondary contamination of tissue cultures during replication is also a major problem. This causes scientific … …OnLine Journal of Biological Sciences, Vol. 25, Issue 2 · 8 Apr 2025 · 8,693 accessesView PDFCite
InvestigationOpen accessIn the keywordsMicrobiocenosis of the Intestinal Tract of Honey Bees and its CorrectionIrina Vladimirovna Serdyuchenko, Andrey Georgievich Koshchaev, Nino Nodarievna Guguchvili et al.We have studied microbiota of the intestinal tract of honey bees and the effect of various preparations and feed additives, in particular hydrohemol. It was established that feeding of hydrohemol in a mixture with candy caused a decrease in the pathogenic microbiota of the digestive tract of bees. This creates the most favorable conditions for the further development of the … …OnLine Journal of Biological Sciences, Vol. 18, Issue 1 · 27 Feb 2018 · 7,786 accessesView PDFCite