Izvestiya of Saratov University.
ISSN 1816-9775 (Print)
ISSN 2541-8971 (Online)


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From Extraction of Oysters to Sustainable Development (Chronology of the Basic Events)

The chronology and periodization of the basic events (with 1839 for 2005), led mankind to representations about «sustainable development» are considered.

Ecological Features and Abundance Dynamics of Wild Ungulates in Volgograd Reservoir Flood-Lands

The dynamics of the quantitative parameters of wild ungulates has been estimated over a part (36.6 thousand ha) of the Volgograd reservoir flood-lands within Engels and Marx districts of the Saratov region during 2003–2007. The number of all the wild ungulates (except wild boars) at the present stage is subject to significant recession.

Sex Differences to the Biochemical Characteristics by the Blood of Laboratory Animals

It is made study of sex influence to the most important enzymes of animal metabolism and parameters of protein, carbohydrate and lipid parts of metabolism for different species of laboratory animals. Shown true sex differences for many biochemical parameters of blood for white rats, for rabbits are founded differences for some enzyme activities and also some indexes.

A Comparative Analysis of Spectral Properties of Coleoptil and Epicotyl Tissues

Spectral properties of coleoptiles and epicotyles of wheat was investigated by cytophotometry. In this organs where found several different photosystems, that have no common absorption spectral areas. Coleoptil in dark growth have the largest lightpiping. Growth in light environment make coleoptil as optical filter.

Collection of Early Sedge (Carex praecox Schreb., Cyperaceae, Magnoliophyta) in Herbarium of Saratov State University

List of herbarium papers of early sedge Carex praecox Schreb., stored in Herbarium of Saratov State University had been made in number of 82 specimens from Russia (Volgograd, Saratov, Ulyanovsk regions, Bashkiria and Kalmykia). Information of labels had been indicated.

Development of Immunochemical Tests for Mycotoxin Detection in Foodstuffs

The article is devoted to the development of rapid test methods for mycotoxin screening in foodstuffs. The method is based on the column with detection immunolayer. As the immunolayer gel on the base on CN-activated Sepharose 4B was used. The method used visual detection. The developed method was used for ochratoxin A detection in beer with cut-off level at 0,2 ng/ml and for aflatoxin M1 detection in milk with cut-off level at 0,05 ng/ml.

A Study of the Activity of Commercial Catalysts in Gas Purification Processes

Industrial metal-cement catalyst NKO-2-3, GTT, NTK-10-2 is investigated. Catalytic activity of metal-cement catalysts for flue gases neutralization under oxidation and reduction activation at 350°C is studied.

Realization of the Cubic LC Phase in the Binary System CCl₄ + an LC Third-Generation Dendrimer

A lyotropic cubic LC phase stable in wide ranges of temperature (0–90°C) and dendrimer concentration (1.7–36.5 wt %) was detected in the binary system CCl₄ + an LC third-generation dendrimer with cyanobiphenyl mesogenic groups. A concentration phase transition from an isotropic solution to an LC state was observed by means of viscometry.

A Polythermal Study of Sailing-out in the Ternary System Potassium Nitrate – Water – Methyldiethylamine

Phase equilibria and critical phenomena in the ternary system potassium nitrate – water – methyldiethylamine, where a constituent binary liquid system is characterized by phase separation with a lower critical solution temperature (LCST), were studied by means of the visual-polythermal method within 25–55°C.

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