Study of the oil geopermeation patterns: A case study of ANSYS CFX software application for computer modeling.

Mathematical simulation of oil permeation through the porous media is the crucial topical problem in the framework of localization and liquidation of emergency oil spills. The main objective of this study was to establish the oil contamination level and oil contamination depth for different soil types which is of particular relevance from the standpoint of environmental safety. Four types of soils were taken for investigation as follows Cambisol with sand texture (No.

Benchmark Thermodynamic Properties of Methyl- and Methoxybenzamides: Comprehensive Experimental and Theoretical Study.

The enthalpies of formation of 2-, 3-, and 4-CH-benzamide, as well as for 2-CHO-benzamide, were measured by using combustion calorimetry. Vapor pressures of the isomeric CH- and CHO-benzamides were measured by using the transpiration method. The enthalpies of sublimation/vaporization of these compounds at 298 K were obtained from temperature dependencies of vapor pressures.

[Perception features of emotional intonation of short pseudowords].

Reaction time and recognition accuracy of speech emotional intonations in short meaningless words that differed only in one phoneme with background noise and without it were studied in 49 adults of 20-79 years old. The results were compared with the same parameters of emotional intonations in intelligent speech utterances under similar conditions. Perception of emotional intonations at different linguistic levels (phonological and lexico-semantic) was found to have both common features and certain peculiarities.

[Influence of new neurohypophyseal hormone analogs on sodium and water reabsorption in rat kidney].

New analogs of some neurohypophyseal hormones (oxypressin, hydrin, glumitocin, vasotocin) have been synthesized. Experiments with injection of these peptides to rats showed that substitution of C-terminal glycinamide on beta-ethanolamine (glycinol) or ethylamine in 1-deamino-arginine vasotocin resulted in loss of natriuretic but not antidiuretic activity. Analogs of oxypressin and hydrin exhibited neither natriuretic activity nor ability to affect water reabsorption.

[Influence of human personal features on acoustic correlates of speech emotional intonation characteristics].

Comparative study of acoustic correlates of emotional intonation was conducted on two types of speech material: sensible speech utterances and short meaningless words. The corpus of speech signals of different emotional intonations (happy, angry, frightened, sad and neutral) was created using the actor's method of simulation of emotions. Native Russian 20-70-year-old speakers (both professional actors and non-actors) participated in the study.

[Determination of cefixime blood plasma levels by HPLC].

For comparative study of the pharmacokinetics of Cemidexor (capsules of 100 mg) and Suprax (capsules of 400 mg), a method of HPLC with quantitative determination of cefixime (the active substance in the drugs) in the blood plasma of patients with UV detection was developed. The data teproducibility with an account of the admissibility criterion was observed within the interval of all the concentrations (0.06-10 mcg/ml).

[Comparative analysis of 1-desamino-arginine-vasotocin, 1-desamino-1-monocarba-arginine-vasotocin and desmopressin antidiuretic effect in rats].

This study was carried out to investigate the antidiuretic efficacy of 1-desamino-arginine-vasotocin (1-dAVT), 1-desamino-1-monocarba-arginine-vasotocin (1-dlmcAVT) in comparison with desmopressin in Wistar rats. Intramuscular injection of 0.0001 nmole/100 g body weight of desmopressin or synthesized analogues of arginine-vasotocin 5 % in the water loading resulted in significant reduction of urinary flow (p < 0.

[Recognition of classes of noise-like signals by dolphins Tursiops truncatus].

The ability of the auditory system to perceive and to classify the noise-like signals imitating natural sea noises has been studied in dolphins Tursiops truncatus. Results of the studies carried out in a sea bay at free movement of the animals have shown that dolphins are able to determine noise-like signals and to ascribe them to a certain class by using invariant characters, such as rhythmical sequence of impulses, regardless of the frequency-time scale of the signal presentation.

Age-related features of the interaction of learning success and characteristics of auditory operative memory.

The characteristics of the interaction between learning success and measures of auditory operative memory were studied by psychoacoustic testing of 42 medical workers aged 20-65 years trained to work in areas new to them (information science). Three age groups were identified: 20-35 years, 36-50 years, and 51-65 years. The acoustic test consisted of a single presentation via headphones of 12 sequential target words from information science with subsequent presentation of 12 target and 12 masking words in random order.

[Age-related changes in the relationship between learning progress and auditory working memory characteristics].

In order to explore the relationship between learning progress and working memory characteristics, the psychoacoustic testing of 42 persons (20-65 years old) of medical staff taught a novel science (informatics) was carried out. The subjects were divided into three age groups: 20-35, 36-50, and 51-65-year-olds. Acoustical test consisted of a set of 12 target words (professional informatics terms) presented through headphones and subsequent presentation of a random succession of 12 target and 12 masking words (all of them being professional informatics terms).

Mechanisms by which dolphins identify target movement characteristics and their technical use in hydrolocation and radiolocation.

The ability of the localizing system of the dolphin Tursiops truncatus to discriminate the dynamic characteristics of an object being located (a radially moving target) was studied. Measurements were made of the thresholds of the animals' sensitivity to the target speed (2.6 cm/sec) and acceleration (0.

Ontogenetic features of the psychophysiological mechanisms of perception of the emotional component of speech in musically gifted children.

The cerebral mechanisms underlying musical-artistic ability were addressed by studying psychophysical measures of the perception of emotional information contained in speech in musically gifted children. Studies involved 46 schoolchildren and 48 young musicians, in three age groups: 7-10, 11-13, and 14-17 years. A test sentence was presented with three emotional intonations (joy, anger, and unemotional) via headphones; subjects' responses identifying the type of emotion were recorded.

[Mechanisms of determining target locator velocity by dolphins and technical applications in hydrolocation and radiolocation].

Dolphin's (Tursiops truncatus) capacity to discriminate between dynamic characteristics of the object location (the target moving radially) was studied. The dolphin sensitivity thresholds for target velocity (2.6 cm/s) and for target acceleration (0.

[Ontogenetic features of psychophysiological mechanisms of perception of speech emotional component in musically gifted children].

Cerebral mechanisms of musical abilities were explored in musically gifted children. For this purpose, psychophysiological characteristics of perception of emotional speech information were experimentally studied in samples of gifted and ordinary children. Forty six schoolchildren and forty eight musicians of three age groups (7-10, 11-13 and 14-17 years old) participated in the study.

[Ontogeny-specific interaction of psychophysiological mechanisms of emotional perception and educational achievement in students].

In order to explore the process of adaptation of children to school environment psychophysiological characteristics of perception of emotional speech information and school progress were experimentally studied. Forty-six schoolchildren of three age groups (7-10, 11-13, and 14-17 years old) participated in the study. In experimental session, a test sentence was presented to a subject through headphones with two emotional intonations (joy and anger) and without emotional expression.