scholarly journals CLASSIFICATION OF SPECIES OF EBOLA- VIRUS, BASED ON THE PHYSICO-CHEMICAL- PROPERTIES, CONSERVED AMINO-ACIDS, GENE-STRUCTURAL INFORMATION AND INTERPRETING ITS SIGNIFICANCE

2020 ◽  
Vol 04 (09) ◽  
pp. 241-271
Author(s):  
Divya Peddapalyam ◽  
Reetika Mishra ◽  
Dr. Madhu Malleshappa
Keyword(s):  
Amino Acids ◽  
Ebola Virus ◽  
Structural Information ◽  
Chemical Properties ◽  
Physico Chemical ◽  
Conserved Amino Acids

scholarly journals Porin from Marine Bacterium Marinomonas primoryensis KMM 3633T: Isolation, Physico-Chemical Properties, and Functional Activity

Molecules ◽  
2020 ◽  
Vol 25 (14) ◽  
pp. 3131
Author(s):  
Olga D. Novikova ◽  
Valentina A. Khomenko ◽  
Natalia Yu. Kim ◽  
Galina N. Likhatskaya ◽  
Lyudmila A. Romanenko ◽  
...  
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Lipid Membranes ◽  
Marine Bacterium ◽  
Chemical Properties ◽  
Cell Permeability ◽  
Oligomeric Structure ◽  
Black Lipid Membranes ◽  
Physico Chemical ◽  
Coastal Sea

Marinomonas primoryensis KMM 3633T, extreme living marine bacterium was isolated from a sample of coastal sea ice in the Amursky Bay near Vladivostok, Russia. The goal of our investigation is to study outer membrane channels determining cell permeability. Porin from M. primoryensis KMM 3633T (MpOmp) has been isolated and characterized. Amino acid analysis and whole genome sequencing were the sources of amino acid data of porin, identified as Porin_4 according to the conservative domain searching. The amino acid composition of MpOmp distinguished by high content of acidic amino acids and low content of sulfur-containing amino acids, but there are no tryptophan residues in its molecule. The native MpOmp existed as a trimer. The reconstitution of MpOmp into black lipid membranes demonstrated its ability to form ion channels whose conductivity depends on the electrolyte concentration. The spatial structure of MpOmp had features typical for the classical gram-negative porins. However, the oligomeric structure of isolated MpOmp was distinguished by very low stability: heat-modified monomer was already observed at 30 °C. The data obtained suggest the stabilizing role of lipids in the natural membrane of marine bacteria in the formation of the oligomeric structure of porin.

scholarly journals Soil Heterogeneity Reflected in Biogeography of Beech Forests in the Borderland Between the Bohemian Massif and the Outer Western Carpathians

2014 ◽  
Vol 33 (4) ◽  
Author(s):  
Pavel Samec ◽  
Aleš Kučera ◽  
Klement Rejšek
Keyword(s):  
Bohemian Massif ◽  
Chemical Properties ◽  
Specific Weight ◽  
Soil Heterogeneity ◽  
Western Carpathians ◽  
Volume Weight ◽  
Physico Chemical ◽  
Outer Western Carpathians ◽  
Chemical Properties Of Soils

AbstractSoil environment characteristics naturally affect the biogeographical classification of forests in central Europe. However, even on the same localities, different systems of vegetation classification de-scribe the forest types according to the naturally dominant tree species with different accuracy. A set of 20 representative natural beech stands in the borderland between the Bohemian Massif (Hercyni-an biogeographical subprovince) and the Outer Western Carpathians (Westcarpathian subprovince) was selected in order to compare textural, hydrostatic, physico-chemical and chemical properties of soils between the included geomorphological regions, bioregions and biotopes. Differences in the soils of the surveyed beech stands were mainly due to volume weight and specific weight, maximum capillary capacity (MCC), porosity, base saturation (BS), total soil nitrogen (N

Soil Morphology, Physico - Chemical Properties and Classification of Typical Soils of Mwala District, Kenya

2015 ◽  
Vol 4 (2) ◽  
pp. 156-170 ◽  
Author(s):  
Anne Karuma ◽  
Charles Gachene ◽  
Balthazar Msanya ◽  
Peter Mtakwa ◽  
Nyambilila Amuri ◽  
...  
Keyword(s):  
Chemical Properties ◽  
Soil Morphology ◽  
Physico Chemical

Classification of Natural and Thermo-Modified Peat by Class-Modeling Techniques

2016 ◽  
Vol 683 ◽  
pp. 596-600
Author(s):  
Aleksey Zarubin ◽  
Natalia Chukhareva
Keyword(s):  
Latent Variables ◽  
Chemical Properties ◽  
Component Composition ◽  
Thermal Modification ◽  
Raw Material ◽  
Data Matrix ◽  
Prediction Errors ◽  
Physico Chemical ◽  
Modeling Techniques

Significant attention is paid to the production of peat-based materials in modern days. The study explores the influence of natural peat thermal modification on its properties by applying class-modeling techniques. Modification of different types of peat is achieved by heating at 250 °C. The set of peat properties such as component composition, g-factor and IR-spectra is used to obtain data matrix. It is shown that class-modeling techniques, such as partial least-squares discriminant analysis (PLS-DA) and simple independent modeling of class analogy (SIMCA), allow estimating peat class (natural or modified) by a set of properties without prediction errors by using three latent variables. According to the results of classification, it is established that thermal modification can be considered as a means of regulating the composition and physico-chemical properties of natural peats as a raw material

scholarly journals Physico Chemical Monitoring Tests of Geothermal Water Production Wells

2019 ◽  
Vol 70 (11) ◽  
pp. 3783-3787
Author(s):  
Mioara Sebesan ◽  
Gabriela Elena Badea ◽  
Radu Sebesan ◽  
Ilona Katalin Fodor ◽  
Simona Bungau ◽  
...  
Keyword(s):  
Chemical Properties ◽  
Geothermal Waters ◽  
Chemical Monitoring ◽  
Geothermal Fluids ◽  
Industrial Buildings ◽  
Physico Chemical ◽  
Production Wells ◽  
Deep Reservoir ◽  
Physical And Chemical

This paper presents a study of the physico-chemical properties of geothermal fluids, coming from some wells in Sacuieni, Bihor County, Romania. The thermal energy of the geothermal waters studied is used for heating some industrial buildings, greenhouses, and administrative buildings. Continuous monitoring of physical and chemical characteristics of geothermal waters is needed. Based on this fact, a classification of these waters has been made according to their chemical composition. Using a silica-enthalpy thermodynamic model, it was possible to estimate the deep reservoir temperature, and compare it with the temperatures at depth, calculated by the silica (quartz and chalcedony) and Na+/K+ geothermometers. The WATCH program is used to estimate the mineral deposits that may accumulate due to boiling and cooling of the geothermal fluid when it is used in heat exchangers The results are confirmed by XRD spectrometric and thermogravimetric analyses.

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