19 research outputs found

    Efficiency of Application of Mineral Fertilizers for Winter Wheat on Leached Black Chernozem

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    The article considers the issue of productivity and economic efficiency of the use of slow-acting nitrogen fertilizers obtained using the ”Si” technology of winter wheat. The studies were carried out in 2014–2017 in the northern forest-steppe zone of the Tyumen region on the experimental field of the Agrotechnological Institute of the GAU of the Northern Trans-Urals. increased winter wheat grain yield. Winter wheat productivity according to the studied options on average over the years of research ranged from 3.36–3.41 t/ha, which is higher than the control about the option of 0.27–0.32 t/ha. The economic efficiency of the fertilizers used was determined by the cost of increasing the crop and the cost of obtaining it. Analysis of economic efficiency showed that when sowing the nitrogen fertilizer, urea encapsulated by Si technology (30 kg/ha d.v.) received the highest profitability – 81.68 %. The resulting conditionally net income in this option amounted to 1663.4 rub/ha. In the sixth version of the experiment (encapsulated urea according to the ”Si” technology (60 kg/ha a.v.) + KCl (30 kg/ha a.a.) + P2O5 (40 kg/ha a.a.)) profitability – 76.0 %. Obtained conditionally net income in this embodiment amounted to 1222 rubles/ha. The return on fertilizer use ranged from 4 to 85 %

    Using modern ICT for semi-automatic data collection of activity-travel patterns in the spatio-temporal context of ubiquitous urban environments: Experiences with tracing and data imputation

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    The activity-based approach views the city as a collection of individual activities, actions, reaction and interactions in the spatiotemporal context of a large-scale environment. For understanding the choice behaviour of individuals and describing urban place in terms what is going on data on daily activity patterns of individuals should be collected. Advanced tracking technologies could facilitate and improve empirical research on human special behaviour. They provide researchers a far more accurate database than traditional means of data collection of a much higher degree of temporal and spatial resolution. Thus the purpose of this paper is twofold: first it aims to report an overview and experiences on data collection with advanced tracking technologies; secondly, it presents the theoretical background of the activity based approach and illustrates how resulting data obtained with GPS technologies can be used to represent the human activities in a spatiotemporal context according to the concepts of the activity-based approach. In addition, this paper presents a system TraceAnnotator for imputing different facets of activity-travel patterns from GPS tracers by using Bayesian belief networks. Activities and movement/travel patterns are represented using a GIS environment at the aggregated and individual levels.</p

    Using modern ICT for semi-automatic data collection of activity-travel patterns in the spatio-temporal context of ubiquitous urban environments: Experiences with tracing and data imputation

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    The activity-based approach views the city as a collection of individual activities, actions, reaction and interactions in the spatiotemporal context of a large-scale environment. For understanding the choice behaviour of individuals and describing urban place in terms what is going on data on daily activity patterns of individuals should be collected. Advanced tracking technologies could facilitate and improve empirical research on human special behaviour. They provide researchers a far more accurate database than traditional means of data collection of a much higher degree of temporal and spatial resolution. Thus the purpose of this paper is twofold: first it aims to report an overview and experiences on data collection with advanced tracking technologies; secondly, it presents the theoretical background of the activity based approach and illustrates how resulting data obtained with GPS technologies can be used to represent the human activities in a spatiotemporal context according to the concepts of the activity-based approach. In addition, this paper presents a system TraceAnnotator for imputing different facets of activity-travel patterns from GPS tracers by using Bayesian belief networks. Activities and movement/travel patterns are represented using a GIS environment at the aggregated and individual levels.</p

    Methodological bases for assessing socio-demographic and migration consequences of man-made disasters

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    The purpose of the research is to develop methodological bases and principles for assessing the socio-demographic (including migration) consequences of man-made disasters. A method of rapid assessment of possible outgoing migration flows that may occur in the event of a man-made emergency of various scales is proposed. The initial data for this method are quantitative statistical register data on housing stock and population, as well as operational data on the scale of destruction obtained using contactless methods of information collection. The author summarizes the legal acts regulating the work on prevention and elimination of consequences of man-made and other emergencies in Russia, as well as establishing the principles for assessing their consequences. The author proposes a rearrangement of the set of consequences of man-made disasters, including three main directions of the impact of emergency situations on various spheres: demographic (including damage to life and health, as well as the migration component), socio-economic, and natural and environmental. Indicators reflecting the consequences of the disaster have been developed for each of th

    ТЕОРЕТИЧЕСКИЕ, МЕТОДОЛОГИЧЕСКИЕ И СТАТИСТИЧЕСКИЕ ПРОБЛЕМЫ ИЗУЧЕНИЯ ЭКОЛОГИЧЕСКОЙ МИГРАЦИИ

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    The increase in the number of natural disasters that has been observed in recent decades around the world under the influence of increasing anthropogenic impact on the environment, not only often causes significant damage to the economy and infrastructure of the territories, but also causes people to die and their mass migrations. In the light of these trends, the environmental situation is increasingly becoming the subject of scientific interest of researchers of various specialties: not only climatologists, but also economists and demographers. However, despite the increasing publication activity, in particular, on problems of population migration caused by climate change and environmental problems, there are significant gaps in the theoretical and methodological aspect. Our analysis of the scientific discourse (mostly English-speaking) showed that the discrepancies concern not only the question of which immigrants should be classified as environmental or climate migrants, but also the very term “environmental migrants”, as well as the legal issue of the necessity and legality of providing such persons of refugee status. It has been established that at the moment “environmental&nbsp;refugees” do not actually have and never had refugee status, either in accordance with the relevant UN Convention or in accordance with the national legislation of any country. The article attempts to systematize and analyze the existing theoretical and methodological approaches to this problem and, on its basis, gives recommendations regarding their application. The features of statistical accounting for environmental migrants are established. The main difficulties of identifying and identifying those migration processes that resulted from changes in the environment are identified, since along with natural factors, a combination of other socio-economic factors, such as low living standards or poverty, often influence decision-making on resettlement. The principles that should be followed when organizing environmental migration statistics at the national level are given. Two groups of existing international sources of quantitative data on environmental migration are described: a bibliographic database containing materials and publications on environmental migration, as well as a database of quantitative data that provide information on the number of displaced persons. The relationship between climate change and the impact on the quality of life of the population has been identified. The negative impact of climate change on the level and quality of life of the population was identified primarily in rural areas, which led to an increase in the scale and deepening of poverty, and also caused the migration of the rural population.El aumento en el número de desastres naturales que se ha observado en las últimas décadas en todo el mundo bajo la influencia del creciente impacto antropogénico en el medio ambiente, no solo a menudo causa daños significativos a la economía y la infraestructura de los territorios, sino que también causa la muerte de personas. y sus migraciones masivas. A la luz de estas tendencias, la situación ambiental se está convirtiendo cada vez más en tema de interés científico de investigadores de diversas especialidades: no solo climatólogos, sino también economistas y demógrafos. Sin embargo, a pesar de la creciente actividad de publicación, en particular sobre los problemas de migración de la población causados por el cambio climático y los problemas ambientales, existen importantes lagunas en el aspecto teórico y metodológico. Nuestro análisis del discurso científico (en su mayoría de habla inglesa) mostró que las discrepancias se refieren no solo a la cuestión de qué inmigrantes deben clasificarse como migrantes ambientales o climáticos, sino también al término “migrantes ambientales”, así como a la cuestión legal de la necesidad y legalidad de proporcionar a tales&nbsp;personas con estatus de refugiado. Se ha establecido que en este momento los "refugiados ambientales" en realidad no tienen y nunca han tenido el estatus de refugiado, ya sea de acuerdo con la Convención de la ONU pertinente o de acuerdo con la legislación nacional de cualquier país. El artículo intenta sistematizar y analizar los enfoques teóricos y metodológicos existentes para este problema y, sobre su base, ofrece recomendaciones sobre su aplicación. Se establecen las características de la contabilidad estadística de los migrantes ambientales. Las principales dificultades para identificar e identificar aquellos procesos de migración que resultaron de cambios en el medio ambiente se identifican, ya que junto con factores naturales, una combinación de otros factores socioeconómicos, como bajos niveles de vida o pobreza, a menudo influyen en la toma de decisiones sobre el reasentamiento. . Se dan los principios que deben seguirse cuando se organizan estadísticas de migración ambiental a nivel nacional. Se describen dos grupos de fuentes internacionales existentes de datos cuantitativos sobre migración ambiental: una base de datos bibliográfica que contiene materiales y publicaciones sobre migración ambiental, así como una base de datos de datos cuantitativos que proporcionan información sobre el número de personas desplazadas. Se ha identificado la relación entre el cambio climático y el impacto en la calidad de vida de la población. El impacto negativo del cambio climático en el nivel y la calidad de vida de la población se identificó principalmente en las áreas rurales, lo que llevó a un aumento en la escala y la profundización de la pobreza, y también causó la migración de la población rural.O aumento do número de desastres naturais que tem sido observado nas últimas décadas em todo o mundo sob a influência do crescente impacto antrópico sobre o meio ambiente, não só causa danos significativos à economia e infra-estrutura dos territórios, mas também faz com que as pessoas morram e suas migrações em massa. À luz dessas tendências, a situação ambiental é cada vez mais tema de interesse científico de pesquisadores de várias especialidades: não apenas climatologistas, mas também economistas e demógrafos. No entanto, apesar da crescente atividade de publicação, em particular, nos problemas de migração populacional causados pelas mudanças climáticas e problemas ambientais, existem lacunas significativas no aspecto teórico e metodológico. Nossa análise do discurso científico (principalmente em inglês) mostrou que as discrepâncias dizem respeito não apenas à questão de quais imigrantes devem ser classificados como migrantes ambientais ou climáticos, mas também ao próprio termo “migrantes ambientais”, bem como à questão legal de migrantes. a necessidade e a legalidade de fornecer a essas pessoas o status de refugiado. Ficou estabelecido que, no momento, os “refugiados ambientais” não têm e nunca tiveram status de refugiado, seja de acordo com a Convenção da ONU ou de acordo com a legislação nacional de qualquer país. O artigo procura sistematizar e analisar as abordagens teóricas e metodológicas existentes para esse problema e, com base nisso, dá recomendações sobre sua aplicação. As características da contabilidade estatística para os migrantes ambientais são estabelecidas. As principais dificuldades de identificar e identificar os processos de migração que resultaram de mudanças no meio ambiente são identificadas, pois juntamente com fatores naturais, uma combinação de outros fatores socioeconômicos, como baixos padrões de vida ou pobreza, muitas vezes influenciam a tomada de decisões sobre o reassentamento. . Os princípios que devem ser seguidos ao organizar as estatísticas de migração ambiental em nível nacional são fornecidos. Dois grupos de fontes internacionais existentes de dados quantitativos sobre a migração ambiental são descritos: uma base de dados bibliográfica contendo materiais e publicações sobre migração ambiental, bem como uma base de dados quantitativos que fornecem informações sobre o número de pessoas deslocadas. A relação entre as mudanças climáticas e o impacto na qualidade de vida da população foi identificada. O impacto negativo da mudança climática no nível e na qualidade de vida da população foi identificado principalmente nas áreas rurais, o que levou a um aumento na escala e aprofundamento da pobreza, e também causou a migração da população rural.Увеличение числа стихийных бедствий, которое наблюдается в последние десятилетия во всем мире под влиянием усиливающегося антропогенного воздействия на окружающую среду, не только часто наносит значительный ущерб экономике и инфраструктуре территорий, но и приводит к гибели людей и их массовой миграции. В свете этих тенденций, экологическая ситуация все чаще становится предметом научного интереса исследователей различных специальностей: не только климатологи, но и экономистов и демографов. Однако, несмотря на растущую публикационную активность, в частности, по проблемам миграции населения, вызванной изменением климата и экологическими проблемами, в теоретико-методологическом аспекте имеются значительные пробелы. Проведенный нами анализ научного дискурса (в основном англоязычного) показал, что расхождения касаются не только вопроса о том, какие иммигранты должны быть классифицированы как экологические или климатические мигранты, но и самого термина “экологические мигранты”, а также юридического вопроса о необходимости и законности предоставления таким лицам статуса беженцев. Установлено, что в настоящее время “экологические беженцы” фактически не имеют и никогда не имели статуса беженца ни в&nbsp;соответствии с соответствующей конвенцией ООН, ни в соответствии с национальным законодательством какой-либо страны. В статье предпринята попытка систематизации и анализа существующих теоретико-методологических подходов к данной проблеме и на ее основе даны рекомендации по их применению. Установлены особенности статистического учета экологических мигрантов. Выявлены основные трудности выявления и идентификации тех миграционных процессов, которые обусловлены изменениями в окружающей среде, поскольку наряду с природными факторами на принятие решений о переселении зачастую влияет сочетание других социально-экономических факторов, таких как низкий уровень жизни или нищета. Принципы, которые следует соблюдать при организации статистики экологической миграции на национальном уровне. Описаны две группы существующих международных источников количественных данных об экологической миграции: библиографическая база данных, содержащая материалы и публикации по экологической миграции, а также база количественных данных, содержащая информацию о числе перемещенных лиц. Выявлена взаимосвязь между изменением климата и воздействием на качество жизни населения. Негативное влияние изменения климата на уровень и качество жизни населения было выявлено прежде всего в сельской местности, что привело к увеличению масштабов и углублению бедности, а также вызвало миграцию сельского населения

    Provision of economic security by creating innovation network of transnational cluster initiatives

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    The article is devoted to the study of perspectives of creating innovational network of transnational cluster initiatives for provision of economic security of modern economic systems. The authors determine the notion of transnational cluster initiatives and allocate their peculiar features as compared to traditional clusters. The authors analyze statistical information about economic security of developed and developing countries of the world and build a model of economic security of modern economic system before and after creation of innovational network of transnational cluster initiatives. The advantage of forming transnational clusters for national economy consists in expansion of international innovational and technological cooperation and use of world practice of commercialization of technologies which covers the whole innovational cycle – from fundamental research to realization of final products in the world market, including marketing of science-intensive goods and services.peer-reviewe

    Multi-service resource queue with the multy-component Poisson arrivals

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    In many papers devoted to telecommunication systems, multiservice queueing models with heterogeneous customer arrivals are given. As a rule, there is streaming traffic, corresponding to the audio and video conference, and elastic traffic, corresponding to the data and file transmission. Different types of traffic require different quality of service, therefore the multi-service systems are also differentiated service systems. Such papers are aimed at developing a framework for estimating the quality of service indicators in new generation multi-service networks. This paper considers a multiservice resource queueing system with three Poisson arrivals, one of which is splitting. The equation for the probabilities distribution of the total resource amounts on the system blocks is compiling by the dynamic screening method, and using the characteristic function of the stationary distribution, the solution is obtaining. The numerical characteristics of the system performance are obtained by the method of moments using characteristic function. A numerical example shows that arrivals intensity growing increases optimal total resource amounts on system blocks in the system with limited resources, and the splitting arrivals affect the correlation between total resource amounts

    Size Matters. Effects of Relative Distance on the Acceptability of Spatial Prepositions

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    Kluth T, Burigo M, Schultheis H, Knoeferle P. Size Matters. Effects of Relative Distance on the Acceptability of Spatial Prepositions. In: Shestakova A, Moiseeva V, Myachykov A, et al., eds. The 10th Annual Embodied and Situated Language Processing. Moscow, Russia: Centre for Cognition and Decision Making, Higher School of Economics; 2017: 26

    Efficacy of targeted screening for familial hypercholesterolemia in children and adults aged <44 years: retrospective, prospective observational study

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    BACKGROUND: Considering the high cardiovascular risk in patients with familial hypercholesterolemia (FH), early diagnosis and treatment are the basis for the prevention of vascular accidents. In the absence of universal screening, the results of more targeted diagnostics are of interest — the search for lipid metabolism disorders in young relatives of patients with atherosclerotic vascular diseases. OBJECTIVE: To determine the effectiveness of targeted screening for identifying patients with FH, which will justify its widespread use in clinical practice. MATERIALS AND METHODS: At the start of the observational study, 584 patients were identified from the vascular centers of the Krasnoyarsk Regional Hospital, Krasnoyarsk Interdistrict Clinical Hospital No. 20 named after. I.S. Berzon, who had lipid profile data and early cardiovascular events (all forms of coronary heart diseases), including reconstructive vascular interventions up to 55 years in men and up to 60 years in women in the case of first-degree relatives and up to 50 years in second-degree relatives. The study examined patients’ relatives aged 44 years. To diagnose FH in participants aged 16 years, the scale developed by a network of Dutch lipid clinics was used; in participants aged 16 years, the S. Broome criteria were used. Targeted screening and lipid parameters in individuals with probable, possible, and definite FH were analyzed. Data processing was performed using Microsoft Excel and Statistica v. 12.0 (USA). Parametric (calculation of the median and 25th and 75th quartiles) and nonparametric (statistical significance of differences was determined using the Mann–Whitney and χ2 tests) methods were used. RESULTS: The study examined 70 children and 104 adults aged 44 years whose first- and/or second-degree relatives suffered premature vascular events. In the general group of participants, 42 (24.14%) patients had FH (of which 18 were 17 years old) and 37 (21.2%) had hyperlipoproteinemia (a). Definite FH was documented in 16 (9.1%) patients, probable in another 16, and possible in 9. Hyperlipoproteinemia (a) was found in 37 (21.2% of general group) patients, including 12 children (17.1% of pediatric group). CONCLUSION: Not more than 30% of the population are aware of the hereditary nature of lipid metabolism disorders and atherosclerotic diseases. Targeted screening is the least expensive and most effective tool for identifying patients with FH and hyperdipoproteinemia (a)
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