This study was aimed to determine the prevalence of
,
spp., and
spp., which occur and are potentially zoonotic to humans in domestic dogs and cats in Moscow (Russia). The fecal flotation method and ...larvae detection by microscopy of a direct feces smear were performed to detect
spp., and
spp. The total parasitic prevalence in dogs was as follows:
spp.: 10.2 % (226/2208),
spp.: 2.7 % (60/2208),
: 2 % (45/2208),
larvae: 1.1 % (25/2208). The younger animals under were infected more than those over 12 months of age (p<0.001). The preva lence rates were along these lines:
spp. (18.2 %),
spp. (5.7 %),
(3 %),
larvae (2.3 %). The overall prevalence in cats was as follows:
spp. - 5.2 % (71/1350),
spp. - 4.8 % (65/1350),
- 4.1 % (56/1350). Similarly to dogs, the infection rates were higher in cats under 12 months of age
spp. (8.2 %),
spp. (8.6 %),
(7.5 %. Analysis of combined infections in dogs revealed the following combinations:
spp. and
spp. (35.5 %) larvae of
sp. and
spp. (32.3 %),
and
spp. (22.6 %),
and
spp. (6.6 %),
and
and (3.2 %), respectively. In cats, only two coinfections by
spp. and
spp. (58.3 %), and
spp. (41.7 %) were noticed. Further research is needed to study the spread of parasitic diseases in pet animals. The data will improve countermeasures to prevent these diseases’ spread among animals and humans.
The results of investigations of the porosity of heat-efficient ceramic materials based on clays with different mineralogical composition with a porous glass component (PGC) and their impact on the ...frost resistance and thermal conductivity are reported. It was found that the content of the illite and montmorillonite subgroup of clay minerals in compositions with PGC determines the optimal quantitative ratio of meso-, macro-, and also ‘dangerous’, reserve, and ‘safe’ pores, which promotes high frost resistance and reduction of the thermal conductivity of the materials.
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DOBA, EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, IZUM, KILJ, KISLJ, MFDPS, NLZOH, NUK, OBVAL, OILJ, PILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UILJ, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
We present the results of developing the architecture of the distributed information data system with virtual-integration elements, which ensures retrieval of the temperature and humidity profiles of ...the atmosphere from the satellite microwave radiometric sensing data. The developed approach features introduction of the priorities of the data sources and routine control of availability of these sources, which ensures the highest level of quality of the initial data and a priori (auxiliary) information used to retrieve the temperature and humidity profiles of the atmosphere. In addition, for the first time, we propose a method which allows one to minimize the stoppage threat when the system addresses the inaccessible remote sources of the a priori data. The non-stop operation of the entire distributed information system with specified quality parameters is ensured by using the results of model forecasting. We present the general functioning scheme using the virtualintegration procedures, whose functional-unit efficiency is confirmed by the results of testing on a special software bench.
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DOBA, EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, IZUM, KILJ, KISLJ, MFDPS, NLZOH, NUK, OILJ, PILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UILJ, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
Parasitological studies are an important part of veterinary control when keeping wild and endangered species of animals in captive breeding. For three years we watched felines (Felidae) in zoos In ...49.2% of feces samples, nematodes were found: Toxascaris leonina and Toxocara cati. Infection with toxascaris in half of the snow leopard (Uncia uncia), all cheetahs (Acinonyx jubatus) and one puma (Puma concolor) was recorded regularly during 3 years of research, T. leonina eggs were found in the soil of the enclosures of these animals. This allows to talk about a stable area of invasion. The most probable way of introducing T. cati nematode into the animal population of the zoo with an animal brought from the wild was noted. Measures for the complete rescue of the territory of zoos and animals from ascaridids require an integrated approach and further improvement.
The results of studies of the influence of dust from electrostatic precipitators of cement kilns on the synthesis of a binder containing mainly dicalcium silicate are demonstrated. The presence of ...alkali potassium and sodium oxides, as well as sulfate ions in the dust of electrostatic precipitators during annealing of a carbonate-siliceous mixture, promotes the formation of a solid solution based on the structure of β-modification 2СаО‧SiO
2
, an increase the defectiveness of its crystal lattice, maintaining a metastable state during cooling and a rise in activity under hydrothermal conditions of hardening.
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OBVAL, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
The 2019 coronavirus disease (COVID-19) outbreak has become global. The unprecedented socioeconomic impact of the pandemic has highlighted the need to improve the existing diagnostic methods and ...develop new methods to control the spread of the disease. Traditional technologies such as quantitative real-time polymerase chain reaction (qRT-PCR) have been considered the gold standard for testing for COVID-19 since the SARS-CoV-2 genome sequence was published. However, they are time-consuming, labor-intensive, and do not guarantee the absence of false results. Electrochemical biosensors present alternative approaches to detect viral nucleic acids or viral antigens. The sensitivity and relatively low cost of the sensors and equipment, convenient management, rapid analysis, and suitability for miniaturization may contribute to the development of point-of-care (POC) testing for COVID-19. This review examines and critically discusses modern electrochemical biosensors for detecting SARS-CoV-2 and related technologies.
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
The purpose of the research is to conduct a sanitary and parasitological examination of soil biotopes on the territory of Moscow. In addition to traditional soil studies, we conducted coproscopic ...analyzes of samples of dog feces collected from the soil surface in Spring. Materials and methods. 83 combined soil samples were taken in 9 administrative districts of Moscow using the envelope method at a depth of up to 10 cm. From each combined sample, 4 samples were taken and examined using the Romanenko method according to MUK 4.2.2661-10 “Methods of sanitary and parasitological research”. From the same areas where soil was collected, 365 dog fecal samples were collected. Feces were studied using a combined flotation method. Soil and fecal samples were taken in Spring of 2023 during a period of positive temperatures immediately after the snow melted. Microscopy was performed using a Motic BA410T microscope. Identification of the detected objects was carried out on the basis of morphometric data. Species differentiation of Toxocara canis and T. cati eggs was carried out based on differences in the size of the eggs and the structure of the outer shell. Results and discussion. The city's soil is contaminated with pathogens of parasitic diseases in 9.3% of samples. Toxocara eggs were found (5.7%), of which T. canis in 3.9% of samples, and T. cati in 1.8% of samples. Eggs of Capillaria sp. detected in 1.5%, eggs of Trichuris sp. at 0.9%. Eggs of Hymenolepis sp. and coccidia were detected in 0.6% of samples. In dog feces, pathogens of parasitic diseases were detected in 3.3% of samples. Toxocara sp. eggs were found in 1.4% of samples, isospores in 0.8%, sarcocystis in 0.8%, Toxascaris leonina eggs in 0.3%. Toxocara sp. eggs are the leaders in the frequency of detection in the soil; these are mainly viable eggs with larvae. This is consistent with the data that T. canis eggs are most often recorded in anonymized dog feces. Eggs of Trichuris sp. and Capillaria sp. found in soil with formed viable larvae. The findings show the potential of urban soils as a parasite transmission factor for humans and susceptible animals, and dogs play a leading role in the contamination of urban soils with Toxocara sp. eggs.
Abstract Study Objective To identify social and behavioral factors associated with unintended pregnancy among adolescents in Russia. Design Cross-sectional. Setting and Participants The investigation ...group consisted of 145 adolescents aged 15-19 years admitted to a youth-friendly clinic for induced abortion. The control group consisted of 77 sexually active never pregnant adolescent girls of similar age admitted for other reasons. Interventions Both groups completed a self-administered questionnaire about their occupation, educational level of their mother, family structure and socioeconomic status, relationship with their mother, sexual behavior, and substance use. Main Outcome Measures Factors associated with unintended pregnancy. Results In the bivariate analysis pregnant adolescents tended to have a lower educational level, to live in a nonintact family, to prefer stronger alcohol drinks, and to have a younger age at sexual debut and more frequent sexual intercourse. In the log-linear model six factors appeared to be directly linked to pregnancy: mother's lower education, alcohol consumption, nonintact family structure, low academic grades, higher frequency of sexual intercourse, and lower age at sexual debut. Conclusion Although the issue of unwanted pregnancy and possible ways to prevent it should be kept in mind in the psychosocial assessment of any adolescent, the results of our study suggest that some adolescents are at increased risk of unwanted pregnancy. This group includes adolescent girls with low educational attainment, living in a disrupted family, and reporting other risk behaviors. These adolescents might specially benefit from specific preventive programs to reduce the number of adverse outcomes.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UL, UM, UPCLJ, UPUK, ZRSKP
A theoretical justification for the influence of a coal–alkaline additive which not only changes the surface properties of the disperse particles, but also intensifies the processes of hydration of ...clay minerals and the formation of dicalcium silicate and calcium aluminate, is given. A thermodynamic analysis of the interaction between the products of clay decomposition and calcium oxide in presence or absence of the additive is performed. The thermodynamic calculations of the probability of the formation of the products of decomposition of clay and clinker minerals at the temperatures up to 1400 K are presented. The introduction of the coal–alkaline reagent into the carbonate/clay mixture allows significantly decreasing the temperature of clay-minerals dehydration; the processes of interaction of the substances in a solid phase followed by the formation of dicalcium silicate and calcium aluminate can occur at temperatures which are 20–102°C lower than the ones carried out in the absence of the additive. Using thermodynamic calculations makes it possible to theoretically prove the efficiency of using such an additive.
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DOBA, EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, IZUM, KILJ, KISLJ, MFDPS, NLZOH, NUK, OBVAL, OILJ, PILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UILJ, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
An approach for identification of objects without specified shape using multispectral satellite data is developed. The approach is based on the orthogonalization procedure in extended ...multidimensional spectral space in which filters that are orthogonal to the hypotheses of desired and similar objects are calculated and, then, scalarly multiplied by the spectra under study. It is shown that normalized rather than original spectra must be used, which leads to a significant decrease in variability of spectra that results in worse recognition of objects and specific calibration must be employed for suppression of atmospheric distortions. It is shown that such a method provides significantly higher recognizability in comparison with the least-squares method that is used in most recognition techniques.
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OBVAL, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
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