In this research work,the problems of connection between various harmful substances emitted into the atmosphere and population morbidity indicators were analyzed in the Navoi region,located in the industrialized and a...In this research work,the problems of connection between various harmful substances emitted into the atmosphere and population morbidity indicators were analyzed in the Navoi region,located in the industrialized and arid climate region of the Republic of Uzbekistan,in the Central Asian region.In today’s globalization process,due to the rapid development of the industry,several problems related to the health of the population are also appearing,so it is more important than ever to pay serious attention to solving these problems.Item 11 of the UN Sustainable Development Goals is also dedicated to the sustainable development of cities,and it is especially emphasized that the people living in the cities of the Asian continent have a very low chance of breathing clean air.Issues such as a very thorough analysis of this situation,improving the environmental situation as much as possible,transitioning to a green economy as soon as possible,and strengthening the health of the population are more important.In the implementation of this study,using methods such as statistical data analysis,sociological survey,and econometric modeling with the help of R Studio software,an attempt was made to determine the correlation between various harmful substances released into the atmosphere and disease groups of the population.This study’s conclusions show a direct relationship between the harmful substances released into the atmosphere and some types of population diseases in the industrialized region of Uzbekistan in Navoi,and their reduction by 2028 forecasts is presented.Decision-making organizations can use these results to prevent this situation from exacerbating.展开更多
Air pollution has emerged as one of the most pressing public health challenges of the twenty-first century.According to the World Health Organization(WHO),more than 7 million premature deaths occur annually as a direc...Air pollution has emerged as one of the most pressing public health challenges of the twenty-first century.According to the World Health Organization(WHO),more than 7 million premature deaths occur annually as a direct consequence of exposure to polluted air,which is estimated to affect over 90%of the global population.Air pollution manifests in two principal forms:outdoor pollution,largely driven by industrial emissions,transportation,and energy production,and indoor pollution,often linked to inadequate ventilation,heating systems,and household fuel use.Both forms contribute significantly to a wide range of health outcomes,including chronic respiratory illnesses,cardiovascular complications,strokes,and various types of cancer.Vulnerable groups—such as children,the elderly,and individuals with pre-existing medical conditions—are disproportionately at risk.Efforts to mitigate the harmful effects of air pollution include stricter emission regulations,adoption of clean and renewable technologies,expansion of sustainable public transportation networks,and public education campaigns aimed at raising awareness of health risks and preventive strategies.Uzbekistan is not exempt from these challenges.In particular,the Navoi region,recognized as one of the country’s most industrialized areas,faces heightened exposure to harmful substances released into the atmosphere.A comparative analysis of air quality indicators in Navoi’s urban centers before and after the COVID-19 pandemic revealed a significant post-pandemic rise in pollution levels,linked to economic recovery,industrial activity,and transport flows.These findings provide valuable insights for policymakers and local authorities in developing targeted environmental and public health interventions.展开更多
The article presents the results of studies of the anatomical structure of the vegetative organs of </span><i><span style="font-family:Verdana;">Allium </span><span style="fon...The article presents the results of studies of the anatomical structure of the vegetative organs of </span><i><span style="font-family:Verdana;">Allium </span><span style="font-family:Verdana;">kysylkumi</span></i><span style="font-family:Verdana;"> of the Amaryllidaceae family, which grows in the conditions of Kyzylkum (Kokchatau outlier mountain). The characteristic diagnostic features have been determined: the outer membrane of epidermal cells is well developed by the outer folded cuticle, cutinized and more thickened;leaves are amphistomatic;stomata are the most submerged, </span><span style="font-family:Verdana;">anomocytic</span><span style="font-family:Verdana;"> type;isolateral-palisade type of leaf mesophyll;the conducting bundles </span><span style="font-family:Verdana;">are closed, collateral and are arranged in two rows, of which the upper side is represented only by small bundles, in the lower row, 3 large bundles alternate with one small bundle;peduncle and peduncle, parenchymal-beam type of structure;the epidermis is single-row, fold</span><span style="font-family:Verdana;">ed cuticle with more thickened and cutinized;the crustal parenchyma is thin-walled, round-oval, chlorophyll-bearing;the presence of lactic acid is in the cow parenchyma;the primary cortex is separated from the central cylinder by a ring of sclerenchyma;the central cylinder is extensive;closed collateral-type conductive bundles.</span><b> </b><span style="font-family:Verdana;">In the vegetative organs of </span><i><span style="font-family:Verdana;">Allium </span><span style="font-family:Verdana;">kysylkumi</span></i><span style="font-family:Verdana;">, especially in the leaf, xeromorphic characters are pronounced, which indicates the fitness of this species in natural habitat. The revealed structural diagnostic signs of vegetative organs are </span><span style="font-family:Verdana;">species-specific,</span><span style="font-family:Verdana;"> and show the adaptation of this species to its natural habitat, these micromorphological signs are taxonomic significance for distinguishing and identifying </span><i><span style="font-family:Verdana;">Allium</span></i><span style="font-family:Verdana;"> species.展开更多
Central Asia is one of the main centers of origin of bulbous geophytes, including the family Amaryllidaceae Juss. The anatomical features of many endemic, red-book bulbous geophytes are still poorly understood. The ar...Central Asia is one of the main centers of origin of bulbous geophytes, including the family Amaryllidaceae Juss. The anatomical features of many endemic, red-book bulbous geophytes are still poorly understood. The article presents the results of a structural study of the inflated part of the stem (fistular), stem and pedicels of an endemic A. praemixtum species grow in two different environmental conditions in the Aktau mountain Nurata Range (Uzbekistan, Province Navoi) and in the conditions of introduction in the Tashkent Botanical Garden (Uzbekistan, Tashkent city). Diagnostic signs of vegetative organs were revealed and various combinations of xeromorphic and mesomorphic signs were determined. Comparative anatomical study of vegetative organs of A. praemixtum is of great theoretical and practical importance in relation to taxonomy and ecology.展开更多
In this article, the lifetime data subjecting to right random censoring is considered. Nonparametric estimation of the distribution function based on the conception of presmoothed estimation of relative-risk function ...In this article, the lifetime data subjecting to right random censoring is considered. Nonparametric estimation of the distribution function based on the conception of presmoothed estimation of relative-risk function and the properties of the estimator by using methods of numerical modeling are discussed. In the model under consideration, the estimates were compared using numerical methods to determine which of the estimates is actually better.展开更多
Chatkal-Kurama region is characterized by igneous complexes of rocks with different composition. According to the existing data magmatism can be referred to 3 types:a) subductional（C<sub>1</sub>-C<sub&...Chatkal-Kurama region is characterized by igneous complexes of rocks with different composition. According to the existing data magmatism can be referred to 3 types:a) subductional（C<sub>1</sub>-C<sub>3</sub>）;b) orogenical（P<sub>1</sub>-T<sub>1</sub>）;and c) dyke（P<sub>2</sub>-T<sub>1</sub>-K）.Different ore deposits occurrences are connected with these rock complexes of Chatkal-Kurama region.展开更多
Currently there have been formed industrial uranium deposits in Kyzylkum province that refer to three types of formations—exogenetic uranium formation in the sediments of Mesozoic-Cenozoic cover,endogenic molybdenum-...Currently there have been formed industrial uranium deposits in Kyzylkum province that refer to three types of formations—exogenetic uranium formation in the sediments of Mesozoic-Cenozoic cover,endogenic molybdenum-uranium formation and polygenic molybdenum-uranium-vanadium formation in carbon-siliceous shale formations ("black-shale"type).Carbon-siliceous shales are展开更多
In the period 2019-2021, two coenotic populations of </span><i><span style="font-family:Verdana;">O. tavernierfolia</span></i><span style="font-family:Verdana;">...In the period 2019-2021, two coenotic populations of </span><i><span style="font-family:Verdana;">O. tavernierfolia</span></i><span style="font-family:Verdana;"> were studied in different ecological and phytocenotic conditions of relic mountain Kuldzhuktau. Very rare species of the Kyzylkum. It is spread at the Kyzylkum: the Kuldzhuktau, near Ayak-Guzhumdy and Churuk (Bukhara region). Inhabits stony and gypseous slopes. There are three small populations can be found. Limiting factors: degradation of habitat as a result of overgrazing. Measures of protection: not protected.</span></span><span style="font-family:""> </span><span style="font-family:""><span style="font-family:Verdana;">The article is devoted to the assessment of the current state of coenotic populations of the rarest southwestern Kyzylkum (Kuldzhuktau) </span><i><span style="font-family:Verdana;">Onobrychis tavernierfolia</span></i><span style="font-family:Verdana;">. It was found that the studied coenopopulations of </span><i><span style="font-family:Verdana;">O. tavernierfolia</span></i><span style="font-family:Verdana;"> are normal and complete.展开更多
The article provides a phytocenotic description </span><i><span style="font-family:Verdana;">of Acanthophyllum cyrtostegium</span></i><span style="font-family:Verdana;&q...The article provides a phytocenotic description </span><i><span style="font-family:Verdana;">of Acanthophyllum cyrtostegium</span></i><span style="font-family:Verdana;">, distributed in the sandy and gypsum soils of Bukhara region (Uzbekistan). During the study, 6 plant communities were studied with the participation of the field work. There were 70 pcs vascular plants in these communities. The area of </span></span><span></span><span style="font-family:Verdana;">this plant, which is rare in the region, is 10 - 12 hectares, and the total number of 750 - 850 pcs. The results obtained from the evaluation of populations are used in carrying out monitoring studies for long years on rare plants. At the same time.he used it as a material for local “Red books”.展开更多
In this paper, the case of the interaction of a flat compression pulse with a layered cylindrical body in an infinite homogeneous and isotropic elastic medium is studied. The problem by the methods of integral Fourier...In this paper, the case of the interaction of a flat compression pulse with a layered cylindrical body in an infinite homogeneous and isotropic elastic medium is studied. The problem by the methods of integral Fourier transforms is solved. The inverse transform numerically by the Romberg method is calculated. With a time of toast and a decrease in momentum, the accuracy is not less than 2%. Taking into account the diffracted waves the results are obtained.展开更多
An infinitely long circular cylinder, consisting generally of a finite number of coaxial viscoelastic layers, surrounded by a deformable medium is considered. The dynamic stress—the deformed state of a piecewise-homo...An infinitely long circular cylinder, consisting generally of a finite number of coaxial viscoelastic layers, surrounded by a deformable medium is considered. The dynamic stress—the deformed state of a piecewise-homogeneous cylindrical layer from a harmonic wave is investigated. The numerical results of stress, depending on the wavelength are obtained.展开更多
文摘In this research work,the problems of connection between various harmful substances emitted into the atmosphere and population morbidity indicators were analyzed in the Navoi region,located in the industrialized and arid climate region of the Republic of Uzbekistan,in the Central Asian region.In today’s globalization process,due to the rapid development of the industry,several problems related to the health of the population are also appearing,so it is more important than ever to pay serious attention to solving these problems.Item 11 of the UN Sustainable Development Goals is also dedicated to the sustainable development of cities,and it is especially emphasized that the people living in the cities of the Asian continent have a very low chance of breathing clean air.Issues such as a very thorough analysis of this situation,improving the environmental situation as much as possible,transitioning to a green economy as soon as possible,and strengthening the health of the population are more important.In the implementation of this study,using methods such as statistical data analysis,sociological survey,and econometric modeling with the help of R Studio software,an attempt was made to determine the correlation between various harmful substances released into the atmosphere and disease groups of the population.This study’s conclusions show a direct relationship between the harmful substances released into the atmosphere and some types of population diseases in the industrialized region of Uzbekistan in Navoi,and their reduction by 2028 forecasts is presented.Decision-making organizations can use these results to prevent this situation from exacerbating.
文摘Air pollution has emerged as one of the most pressing public health challenges of the twenty-first century.According to the World Health Organization(WHO),more than 7 million premature deaths occur annually as a direct consequence of exposure to polluted air,which is estimated to affect over 90%of the global population.Air pollution manifests in two principal forms:outdoor pollution,largely driven by industrial emissions,transportation,and energy production,and indoor pollution,often linked to inadequate ventilation,heating systems,and household fuel use.Both forms contribute significantly to a wide range of health outcomes,including chronic respiratory illnesses,cardiovascular complications,strokes,and various types of cancer.Vulnerable groups—such as children,the elderly,and individuals with pre-existing medical conditions—are disproportionately at risk.Efforts to mitigate the harmful effects of air pollution include stricter emission regulations,adoption of clean and renewable technologies,expansion of sustainable public transportation networks,and public education campaigns aimed at raising awareness of health risks and preventive strategies.Uzbekistan is not exempt from these challenges.In particular,the Navoi region,recognized as one of the country’s most industrialized areas,faces heightened exposure to harmful substances released into the atmosphere.A comparative analysis of air quality indicators in Navoi’s urban centers before and after the COVID-19 pandemic revealed a significant post-pandemic rise in pollution levels,linked to economic recovery,industrial activity,and transport flows.These findings provide valuable insights for policymakers and local authorities in developing targeted environmental and public health interventions.
文摘The article presents the results of studies of the anatomical structure of the vegetative organs of </span><i><span style="font-family:Verdana;">Allium </span><span style="font-family:Verdana;">kysylkumi</span></i><span style="font-family:Verdana;"> of the Amaryllidaceae family, which grows in the conditions of Kyzylkum (Kokchatau outlier mountain). The characteristic diagnostic features have been determined: the outer membrane of epidermal cells is well developed by the outer folded cuticle, cutinized and more thickened;leaves are amphistomatic;stomata are the most submerged, </span><span style="font-family:Verdana;">anomocytic</span><span style="font-family:Verdana;"> type;isolateral-palisade type of leaf mesophyll;the conducting bundles </span><span style="font-family:Verdana;">are closed, collateral and are arranged in two rows, of which the upper side is represented only by small bundles, in the lower row, 3 large bundles alternate with one small bundle;peduncle and peduncle, parenchymal-beam type of structure;the epidermis is single-row, fold</span><span style="font-family:Verdana;">ed cuticle with more thickened and cutinized;the crustal parenchyma is thin-walled, round-oval, chlorophyll-bearing;the presence of lactic acid is in the cow parenchyma;the primary cortex is separated from the central cylinder by a ring of sclerenchyma;the central cylinder is extensive;closed collateral-type conductive bundles.</span><b> </b><span style="font-family:Verdana;">In the vegetative organs of </span><i><span style="font-family:Verdana;">Allium </span><span style="font-family:Verdana;">kysylkumi</span></i><span style="font-family:Verdana;">, especially in the leaf, xeromorphic characters are pronounced, which indicates the fitness of this species in natural habitat. The revealed structural diagnostic signs of vegetative organs are </span><span style="font-family:Verdana;">species-specific,</span><span style="font-family:Verdana;"> and show the adaptation of this species to its natural habitat, these micromorphological signs are taxonomic significance for distinguishing and identifying </span><i><span style="font-family:Verdana;">Allium</span></i><span style="font-family:Verdana;"> species.
文摘Central Asia is one of the main centers of origin of bulbous geophytes, including the family Amaryllidaceae Juss. The anatomical features of many endemic, red-book bulbous geophytes are still poorly understood. The article presents the results of a structural study of the inflated part of the stem (fistular), stem and pedicels of an endemic A. praemixtum species grow in two different environmental conditions in the Aktau mountain Nurata Range (Uzbekistan, Province Navoi) and in the conditions of introduction in the Tashkent Botanical Garden (Uzbekistan, Tashkent city). Diagnostic signs of vegetative organs were revealed and various combinations of xeromorphic and mesomorphic signs were determined. Comparative anatomical study of vegetative organs of A. praemixtum is of great theoretical and practical importance in relation to taxonomy and ecology.
文摘In this article, the lifetime data subjecting to right random censoring is considered. Nonparametric estimation of the distribution function based on the conception of presmoothed estimation of relative-risk function and the properties of the estimator by using methods of numerical modeling are discussed. In the model under consideration, the estimates were compared using numerical methods to determine which of the estimates is actually better.
文摘Chatkal-Kurama region is characterized by igneous complexes of rocks with different composition. According to the existing data magmatism can be referred to 3 types:a) subductional（C<sub>1</sub>-C<sub>3</sub>）;b) orogenical（P<sub>1</sub>-T<sub>1</sub>）;and c) dyke（P<sub>2</sub>-T<sub>1</sub>-K）.Different ore deposits occurrences are connected with these rock complexes of Chatkal-Kurama region.
文摘Currently there have been formed industrial uranium deposits in Kyzylkum province that refer to three types of formations—exogenetic uranium formation in the sediments of Mesozoic-Cenozoic cover,endogenic molybdenum-uranium formation and polygenic molybdenum-uranium-vanadium formation in carbon-siliceous shale formations ("black-shale"type).Carbon-siliceous shales are
文摘In the period 2019-2021, two coenotic populations of </span><i><span style="font-family:Verdana;">O. tavernierfolia</span></i><span style="font-family:Verdana;"> were studied in different ecological and phytocenotic conditions of relic mountain Kuldzhuktau. Very rare species of the Kyzylkum. It is spread at the Kyzylkum: the Kuldzhuktau, near Ayak-Guzhumdy and Churuk (Bukhara region). Inhabits stony and gypseous slopes. There are three small populations can be found. Limiting factors: degradation of habitat as a result of overgrazing. Measures of protection: not protected.</span></span><span style="font-family:""> </span><span style="font-family:""><span style="font-family:Verdana;">The article is devoted to the assessment of the current state of coenotic populations of the rarest southwestern Kyzylkum (Kuldzhuktau) </span><i><span style="font-family:Verdana;">Onobrychis tavernierfolia</span></i><span style="font-family:Verdana;">. It was found that the studied coenopopulations of </span><i><span style="font-family:Verdana;">O. tavernierfolia</span></i><span style="font-family:Verdana;"> are normal and complete.
文摘The article provides a phytocenotic description </span><i><span style="font-family:Verdana;">of Acanthophyllum cyrtostegium</span></i><span style="font-family:Verdana;">, distributed in the sandy and gypsum soils of Bukhara region (Uzbekistan). During the study, 6 plant communities were studied with the participation of the field work. There were 70 pcs vascular plants in these communities. The area of </span></span><span></span><span style="font-family:Verdana;">this plant, which is rare in the region, is 10 - 12 hectares, and the total number of 750 - 850 pcs. The results obtained from the evaluation of populations are used in carrying out monitoring studies for long years on rare plants. At the same time.he used it as a material for local “Red books”.
文摘In this paper, the case of the interaction of a flat compression pulse with a layered cylindrical body in an infinite homogeneous and isotropic elastic medium is studied. The problem by the methods of integral Fourier transforms is solved. The inverse transform numerically by the Romberg method is calculated. With a time of toast and a decrease in momentum, the accuracy is not less than 2%. Taking into account the diffracted waves the results are obtained.
文摘An infinitely long circular cylinder, consisting generally of a finite number of coaxial viscoelastic layers, surrounded by a deformable medium is considered. The dynamic stress—the deformed state of a piecewise-homogeneous cylindrical layer from a harmonic wave is investigated. The numerical results of stress, depending on the wavelength are obtained.
