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коллекция "otherreferats"
Главная Коллекция "Otherreferats" Биология и естествознание
  • 91. Dose-dependent effect of electron acceptor and donor on dissimilatory sulfate reduction by bacteria Desulfovibrio Piger VIB-7 of human intestine

    The growth of bacteria Desulfovibrio Piger of the human intestine at different concentrations of acceptor and donor of electrons. The increase in the intensity of bacterial growth and production of hydrogen sulfide in the environment of cultivation.

    статья (2,6 M)
  • 92. Dragonflies (Odonata) of some small anthropogenic water bodies in Cracow City

    Materials and methods of research data dragonflies detachment of prey flying insects in the small man-made bodies of water are located in the southern part of Krakow in the period 2001-2004. Number and distribution of dragonflies in different areas.

    статья (215,1 K)
  • 93. Dynamics of the phenolic constituents and antioxidant activity in submerged cultures of Xylaria species

    A comprehensive study of the dynamics of the accumulation of phenolic compounds by representatives of the genus Xylaria. Correlation between the content of phenols and antioxidant properties found in biomass and culture liquid during their cultivation.

    статья (1,2 M)
  • 94. Effect of Avandamet on conditioned food reflex in rats of different age groups

    Causal relationship between Alzheimer's disease and diabetes mellitus (non-insulin-dependent diabetes mellitus). Testing of Avandamet, an antidiabetic drug used to treat diabetes mellitus, on temporal parameters of the conditioned eating reflex in rats.

    статья (140,5 K)
  • 95. Effect of bacterization with Aeromonas media GS4 and Pseudomonas extremorientalis PhS1 on wheat seedlings under different abiotic conditions

    Еffect of soft wheat seed treatment (Triticum aestivum L.) with two bacterial strains (Aeromonas media GS4, Pseudomonas extremorientalis PhS1) isolatedfrom earthworm coprolites on the growth and development of wheat seedlings in a laboratory experiment.

    статья (467,4 K)
  • 96. Effect of cultural practices on turfgrass diseases

    The that application of nitrogen fertilizer contributes to an increase in powdery mildew, septoria leaf blotch and yellow rust infection. As mowing, verticutting contribute to the reduction of severity of all diseases. The application of spring aeration.

    статья (21,0 K)
  • 97. Effect of magnetic field and environmental PH on the adsorption efficiency of cells of the genus Lactobacillus

    Review of the effect of magnetic field and medium pH on the efficiency of cellular adsorption of Lactobacillus probiotic strains. Adsorption of probiotic cultures of Lactobacillus acidophilus, Lactobacillus plantarum, on highly dispersed silica.

    статья (349,7 K)
  • 98. Effect of methyl violet to mulberry silkworm some breeds eggs

    Establishment of physiological responses in different phases of development after treating local and introduced mulberry silkworm breeds of with aqueous solutions of methyl violet. Exogenous influence of eggs on the formation of a negative reaction.

    статья (1,1 M)
  • 99. Effect of Zinc Deficiency and Excess on the Antioxidant Enzymes Activity in Barley Seedling Leaves

    Determining the importance of zinc for plants. Establishing a relationship between excess oxidative stress and inhibition of shoot growth. Substantiation of the absence of disturbances in the redox balance of cells to stun plant growth in zinc deficiency.

    статья (49,5 K)
  • 100. Elements of Molecular Neurobiology

    Outline of Nervous Systems. Organisation of Synapses, Neurons in the Brain. The Conformation of Informational Macromolecules. Primary, secondary, tertiary, quaternary structure. Molecular Chaperones. Nucleic Acids. Antisense and triplex oligonucleotides.

    книга (14,2 M)
  • 101. Endangered species of animals in Ukraine

    Description of the reasons for the disappearance of types of illegal hunting, deforestation, pollution of water bodies. Statistics reduce some species of animals in Ukraine. The red book as a collection of endangered species of animals and plants.

    презентация (555,6 K)
  • 102. Endoplasmic Reticulum

    Functions of the endoplasmic reticulum, consists of an extensive network of tubes and pockets, surrounded by membrane. Spherical or slightly ellipsoidal shape of ribosomes, their location in eukaryotic cells on the membranes of the endoplasmic reticulum.

    презентация (6,1 M)
  • 103. Enterobacteria как возбудители кишечных заболеваний сельскохозяйственных животных

    Семейство энтеробактерий — Enterobacteriaceae, порядок Eubacteriales — собственно бактерии, классификация, роды, патогенные, условно-патогенные и сапрофитные виды. Значение родов Escherichia, Salmonella, Proteus, lersinia в патологии домашних животных.

    курсовая работа (74,8 K)
  • 104. Estimation of inter-oscillatory coherence in the electroencephalograms by use of their mathematical modeling

    Analysis of the relationship between different areas of the brain according to the coherence of their electroencephalogram rhythms. Determination of decrements and frequencies based on the EEG model. Neural ensemble of brain membrane potentials.

    статья (497,8 K)
  • 105. Estimation of the genetic activity of heavy metals salts on changing of recombination parameters in drosophila

    The effect of various concentrations of heavy metals salts (lead and mercury nitrates) on recombination parameters in drosophila. These compounds have genetic activity and increase the crossing-over frequency in zone y-v of chromosome 1 (X) of drosophila.

    статья (293,6 K)
  • 106. Evolution of the Individual

    Viewing organisms as the sole unit of selection. Individuality as an issue of central concern for all the sciences. Difference between multilevel model of the organism and more standard group selection models. Recurrence equations. Covariance methods.

    статья (1,5 M)
  • 107. Exclusion of polyvalent T7-like phages by prophage elements

    The new insights into the process of interaction of T7-like bacteriophages FE44 and BA14 with lysogenic cells. The single and double lysogens possess Abi-phenotype regardless of genera and strain of bacteria that initially had normal phage sensitivity.

    статья (805,1 K)
  • 108. Famous microbiologists

    Review and analysis of the biography and particular activity of Edward Jenner, who created vaccine for smallpox created from cowpox. Research and characterization of contributions to microbiology Louis Pasteur, Robert Koch and Alexander Fleming.

    презентация (325,2 K)
  • 109. Fauna of metacercariaes (trematodes) in cyprinid fish of the Seversky Donets river and its tributaries

    The peculiarity of the study of metacercariae of trematodes, among which there are species that are potentially dangerous epizootologically and epidemiologically. Bivalves and gastropods are widespread. Conducting research to establish interim hosts.

    статья (2,6 M)
  • 110. Features of Grass and Subshrub Reproduction in Forest Phytocoenoses

    Study of model species of herbaceous and shrubby plants. Determination of the main indicators of generative reproduction of clonal-forming plants of the grass and shrub layer and their dependence on the plant species and ecological and cenotic factors.

    статья (31,9 K)
  • 111. Flora current state of Rosaceae woody species in mountain xerophytic and steppe vegetation of ordubad district

    Investigation of the unique plant communities of Ordubadsky district. Classification of structures of the mountain-xerophytic and steppe flora of the region. Identification of the taxonomic composition and classes of tree species of the Rosaceae family.

    статья (225,0 K)
  • 112. Foliar Content of Phenolic Compoundsin Platantherabifolia from Natural and Transformed Ecosystems at Different Stages of Orchid Development

    General geobotanical characteristics of the study sites. The individuals of P. bifolia at the flowering stage, consideration of representatives of the OrchidaceaeJuss family. As a source of natural antioxidants. The content of flavonoids in orchid leaves.

    статья (1,5 M)
  • 113. Formation of multicellular aggregates under different conditions of microenvironment

    Exemplary systems for studying of three-dimensional growth and differentiation in vitro. Spheroid formation in spinner flasks. Spheroid formation on agar overlay. Formation of multicellular aggregates under different conditions of microenvironment.

    статья (147,3 K)
  • 114. Frege on Extensions of Concepts, from 1884 to 1903

    Remarkable passages in the Foundations of arithmetic. Frege on extensions of concepts, from 1884 to 1903. Conceptual uncertainty and frege's rationalism. Contextual definition, concept and object of ontological options, incomplete understanding.

    научная работа (2,6 M)
  • 115. Frustule functions and functional morphologe of Bacillariophyta

    A multifunctional role of most frustule structural elements and their taking part in many vital functions of the diatom single-cell organism. Some structures of frustule as velum, areola, stria are considered in the light of function morphology.

    статья (784,7 K)
  • 116. Functional morphology of horseshoe spot in frustule of Planothidium species (Bacillariophyta)

    Investigation of the morphology of the horseshoe spot (HHS) with the cavity in details in several species of Planothidium Round et Bukht. The model of the HSS longitudinal section and light rays tracing.

    статья (202,7 K)
  • 117. General characteristics, classification of rodents, modern approaches and history of their study

    Common biological signs for all rodents when they are United in one group. Classification of rodents according to their ecological characteristics. Comparative characteristics of wild and trained domestic rats. Biology and ecology of mouse-like rodents.

    статья (305,3 K)
  • 118. Genotoxic effect of the influence of folic acid on hibrid and mutant strains of drosophila melanogaster

    The effect of folic acid on the processes viability, organogenesis, development of the whole organism flies. Morphometric analysis of its impact on first generation hybrids in damage to the wing type "cutting" and the changes of embryonic mortality.

    статья (1,1 M)
  • 119. Gentle blood sampling from tortoises (Testudines) to detect blood parasites

    An alternative method for obtaining high-quality blood samples from tortoises of the genus Testudo for the detection of blood parasites by blood extraction using a medicinal leech Hirudo medicinalis. Microscopic specimens prepared from blood samples.

    статья (154,1 K)
  • 120. Globorotalia menardii (D’orbigny, 1826) Parker, Jones & Brady, 1865 (планктонні форамініфери, міоцен, поділля): історія та сучасний стан (коментарі до таксономії, номенклатури і філогенії)

    Монографічний опис одного з біомаркерів еко-зони Globorotalia menardii-Anomalinoides dividens--Spirolina austriaca, її таксономічне положення і філогенетичні зв’язки. Виявлення події зміни морфологічних ознак Globorotalia menardii на глобальному рівні.

    статья (1,3 M)

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