14 research outputs found

    Study of Biological Properties of Effective Pesticides Destructor Pseudomonas Putida P2

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    A promising approach for remediation of contaminated soils is the use of biological products based on microorganisms-destructors. Of particular interest are the strains that can decompose several types of pollutants. Potential strains-destructors should be not only effective but also adapted for certain soil and climatic conditions. In addition, when introducing a significant amount of biological agents into the ecosystem, the lack of toxicological and pathogenic effects on plants, animals, and humans is particularly important. The object of the study is the destructor strain of sim-triazine herbicide of prometrin Pseudomonas putida P2. The study explores the ability of strain to use various pesticides as the only carbon source, the effect of bacterial culture on seed germination, biotesting of strain on toxicity using earthworms. Besides, the study presents the phytopathogenic factors and enzymes causing bacteria invasiveness into animals and humans. The determination of dehydrogenase activity of prometrin destructor strain shows that this strain can also use active ingredients of pesticide malathion, HCH, and 4,4-DDT as only sole carbon source. It is also established that the studied strain Pseudomonas putida P2 increases the germination of seeds of the variety Saratovskaya 70 and carrots of the variety Samson and does not possess pathogenicity factors. The strain biotesting on the earthworms revealed no acute toxicity of the culture. The analysis of data obtained from the model pollution shows that the introduction of the destructor of Prometrium Pseudomonas putida P2 into the soil can create favorable conditions for vital activity and reproduction of earthworms

    Comparative evaluation of the influence of no-till and traditional treatment on the biological activity of agricultural chernozem of the Stavropol region

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    Using the method of inoculation on elective nutrient media, the abundance and activity of taxonomic (bacteria, actinomycetes, micromycetes) and functional (nitrogen fixers, ammonifiers, denitrifiers of amylolytic, cellulolytic) groups of microorganisms in agrochernozems of the Stavropol region under the influence of various tillage systems – direct seeding (no-till) and moldboard plowing with the turnover of soil horizon (traditional treatment). Analyzes were carried out for such crops as winter wheat, corn, sunflower and soybean with/without application of mineral fertilizers. Traditional tillage for the majority of crops leads to increased activity of aerobic ammonifiers, cellulolytics, denitrifiers, actinomycetes and micromycetes. No-till technology, in its turn, increases the intensity of anaerobic cellulolytics and nitrogen fixers, aerobic diazotrophs and amylolytics activity. The most responsive crop, under which the biological activity of almost all groups of microorganisms increased in the no-till variant, was corn, while winter wheat contributed to the increase in the number of microorganisms in the moldboard plowing variant. The use of mineral fertilizers provoked the growth of soil biological activity under sunflower sown directly in the soil, while conventional tillage resulted in higher soil biological activity without application of mineral fertilizers

    Creation of multimedia presentations — effective form of educational technologies in independent work of students

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    The article is devoted to the such a special kind of student's activity as PowerРoint multimedia presentations. The authors analysis the role of this kind of activity at the medical students' education and it's contribution to the training a lot of professional and personal's features.В статье рассматривается создание мультимедийных презентаций в Powerpoint в качестве эффективной формы организации самостоятельной работы студента. Авторы анализируют роль этого вида деятельности в образовании студентов лечебно-профилактического факультета и его вклад в развитие многих профессиональных и личностных качеств

    Study of Biological Properties of Effective Pesticides Destructor Pseudomonas Putida P2

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    A promising approach for remediation of contaminated soils is the use of biological products based on microorganisms-destructors. Of particular interest are the strains that can decompose several types of pollutants. Potential strains-destructors should be not only effective but also adapted for certain soil and climatic conditions. In addition, when introducing a significant amount of biological agents into the ecosystem, the lack of toxicological and pathogenic effects on plants, animals, and humans is particularly important. The object of the study is the destructor strain of sim-triazine herbicide of prometrin Pseudomonas putida P2. The study explores the ability of strain to use various pesticides as the only carbon source, the effect of bacterial culture on seed germination, biotesting of strain on toxicity using earthworms. Besides, the study presents the phytopathogenic factors and enzymes causing bacteria invasiveness into animals and humans. The determination of dehydrogenase activity of prometrin destructor strain shows that this strain can also use active ingredients of pesticide malathion, HCH, and 4,4-DDT as only sole carbon source. It is also established that the studied strain Pseudomonas putida P2 increases the germination of seeds of the variety Saratovskaya 70 and carrots of the variety Samson and does not possess pathogenicity factors. The strain biotesting on the earthworms revealed no acute toxicity of the culture. The analysis of data obtained from the model pollution shows that the introduction of the destructor of Prometrium Pseudomonas putida P2 into the soil can create favorable conditions for vital activity and reproduction of earthworms

    Обоснование включения общих ванн с биолонгом в лечебно-реабилитационный комплекс больных хронической обструктивной болезнью легких и бронхиальной астмой

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    Summary. Clinical and functional investigations demonstrated a benefit from inclusion of total bath with Biolong in a therapeutic and rehabilitation programme for patients with COPD and asthma. The advantages of administering the hydropathical factor with anti-hypoxic and anti-oxidant effects to patients with bronchial asthma were demonstrated.Резюме. В работе представлены результаты клинико-функциональных исследований, обосновывающих целесообразность включения в лечебно-реабилитационный комплекс больных хронической обструктивной патологией органов дыхания общих ванн с биолонгом. Установлено преимущество применения бальнеофактора, обладающего свойствами антигипоксанта-антиоксиданта, у больных бронхиальной астмой

    The assessment of neurocognitive functions in premature infants in the first year of life using Bayley Scales

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    AIM: To reveal the differences in neurocognitive development in premature infants and full-term infants in the first year of life. MATERIAL AND METHODS: The participants were 17 premature infants and 16 sex- and age-matched healthy full-term infants. The gestational age of preterm infants was between 28 and 36 weeks. The Bayley Scales of Infant Development 3rd Edition were used to evaluate neurocognitive abilities in infants. ANCOVA with age as a covariate was used. RESULTS AND CONCLUSION: Preterm infants performed significantly (p≤0.05) worse than the full-term infants on cognitive scale, receptive language, gross motor and fine motor scales. No significant differences were found between preterm and full-term infants on the expressive language scale. Two-way ANOVA revealed no significant (p≤0.05) differences between female premature infants and full-term female infants on the gross motor scale in comparison to male infants. It has been proposed that the prematurity has a specific, but not a global, negative effect on the neurocognitive development in the first year of life with the gender effect on the development of gross motor skills. SY, OA, T, NI, EV, KI, DA, OL, S
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