bluuebunny/crossref_metadata_2025 huggingface dataset:
Influence of Additives of Carbon Nanotubes and Oxide Nanofibers on Mechanical Properties of Aluminum Composite
Authors: Alekseev Artem V. , Esikov Maxim A. , Mali Vyacheslav I. , Khassin Alexander A. , Predtechenskiy Michael R.
Published: November 2019

Composite material with aluminum matrix reinforced by carbon nanotubes (CNT) and oxide nanofibers (NF) was made by powder metallurgy method. Powder mixtures were made by low energy milling on drum ball mill. Composite samples were manufactured by spark plasma sintering system. Microstructure analysis showed agglomeration of CNT and NF in composite materials. Correlation between flexural strength and unit mass of composites was revealed. Nevertheless, the use of low energy milling allows minimizing the damage of carbon nanotubes and oxide nanofibers during the preparation of mixtures. From this point of view it is suitable for making composites with high elastic modulus. It was shown that addition of 5-12%wt of CNT can increase flexural modulus by 30-189%. Also was shown that addition of 5%wt of oxide nanofibers increase flexural modulus by 78%
Modernization of the Cavitation Stand for the Investigation of Two-Phase Flow Regimes
Authors: Radzyuk Alexander Yu. , Kulagin Vladimir A. , Istyagina Elena B. , Pianykh Tatyana A.
Published: November 2019

Experimental methods are the most obvious and reliable in cavitation studies. The number of bubbles of insoluble oxygen in a flow influences cavitation hrocesses. In order to reduce the amount of dissolved gases in the experimental setup, it is proposed to use a resorber. The flow regimes of fluid flow around a solid with the formation of a cavitation zone in the flow are investigated. The type of cavitation flow is determined. A comparison is made of the experimental results of the formation of cavitation conditions before and after the installation of the resorber. The experiments were carried out with technical tap water, the reliability of the results is confirmed by comparing them with the literature data
(Self-)Reflecting on International Recruitment: Views on the Role of Recruiting Agencies in Bulgaria and Romania
Authors: Kovacheva Siyka , Popivanov Boris , Burcea Marin
Published: November 2019

This article focuses on the recruiting practices of public and private agencies dealing with international labour mediation in Bulgaria and Romania. Based on interpretative analysis of 20 in-depth interviews with professionals working in migrant recruiting agencies in the two countries, we aim to understand their views on the advantages and disadvantages of their services in comparison with other mobility channels: such as informal networks, direct contacts with employers, or unofficial Internet sites. The article examines the ways in which international labour mediation practitioners construct their target group—migrants—in terms of motivation, human capital, and/or challenges of their adaptation to the new context. We then look at intermediaries’ perceptions of employers’ needs and expectations. We finish with uncovering recruiters’ underlying assessment of the national and European mobility policies and the outcomes they see for individual migrants, employers and the countries of departure and destination.
Oxidative modification of proteins in serum of rats under conditions of carrageenan-induced inflammation of a back limb and prolonged prophylactic administration of chondroitin sulfate
Authors: Blokhina O. , Korotkiy O. , Kot L. , Negray D. , Dvorshchenko K.
Published: November 2019

The aim of the work was to investigate the preventive effect of Chondroitin Sulfate on the content of products of oxidative modification of proteins and the level of sulfhydryl groups in blood serum of rats at local inflammation of the hind limb. The studies were conducted on white non-linear, sexually mature male rats weighing 180–240 g, in compliance with the general ethical principles of experiments on animals. All animals were divided into four experimental groups. The first group – control: animals sub-planar injected 0,1 ml of 0,9 % NaCl solution into the posterior right limb. The second group – animals received a therapeutic dose of 3 mg x kg-1 chondroitin sulfate daily for 28 days daily. The third group – animals were infused intramuscularly with 0,1 ml of 0,9 % NaCl solution in the posterior right limb for 28 days and for 29 days inflammatory edema of the limb was stimulated (animals were sub-planar injected with 0,1 ml of 1 % carrageenan solution to the posterior right limb ) The fourth group – for 28 days rats were daily intramuscularly injected with a therapeutic dose of 3 mg x kg-1 chondroitin sulfate, after which on 29th day, inflammatory edema of the limb was stimulated. Animals were killed 3 hours after injection of carrageenan solution according to the protocol of the ethical committee, and then blood sampling for further research was quickly taken. The total number of animals involved in experimental studies was 40 individuals. The content of the products of oxidative modification of proteins (OMP) and oligopeptides was determined by the level of carbonyl derivatives that were detected in reaction with 2,4-dinitrophenylhydrazine. The level of total, protein-bound and non-protein sulfhydryl (SH) -groups was measured by the Elman method. It has been established that with carrageenan-induced inflammation of the posterior limb, the content of the products of oxidative modification of proteins increases and the content of sulfhydryl groups decreases in the serum. It was shown that the prophylactic administration of chondroitin sulfate based drug on animals with carrageenan-induced inflammation restored the abovementioned parameters.
REAT: A Regional Economic Analysis Toolbox for R
Authors: Wieland Thomas
Published: November 2019

Methods of regional economic analysis are widely used in regional and urban economics as well as in economic geography. This paper introduces the REAT (Regional Economic Analysis Toolbox) package for the programming environment R, which provides a collection of mathematical regional analysis methods in a user-friendly way. The focus is on the identification of regional inequality, beta and sigma convergence, measurement of agglomerations, point-based measures of clustering and accessibility as well as regional growth. The theoretical basics of the applications are briefly introduced, while the usage of the most important functions is presented and explained using real data.
Rockefeller Bureaucracy and Circumknowing Science in the Mid-Twentieth Century
Authors: Barany Michael J.
Published: November 2019

This article examines evaluation principles and techniques and their associated bureaucratic practices from the early decades of Rockefeller science philanthropy. I characterize the distinctive kinds of expertise about science that such philanthropy presumed and cultivated based on analyses of, first, documents connected to interventions in European and South American mathematics and, second, a 1946 handbook prepared by Warren Weaver to guide new programme officers. Rockefeller officers developed elaborate infrastructures for understanding and intervening in the personal and institutional conditions of scientific investigation, while deliberately diverting attention away from the particulars of the science they supported. Their approach, indicative of operating strategies and assumptions for scientific funding bodies in this period, shaped access and authority across the major enterprises of late modern science, defining both what science and which scientists could benefit from new resources and opportunities.
Efeito alelopático de Libidibia ferrea Mart. sobre o vigor das sementes de feijão-caupi
Authors: Alves Rafael Mateus , Silva Monalisa Alves Diniz da , Silva Joyce Naiara da , Costa Rosemeire Santos , Santos Bruna Kaline de Lima , Lima Edjane Da Silva
Published: November 2019

O feijão-caupi é uma das principais culturas de importância para a região Nordeste, sendo cultivada em áreas da Caatinga, considerando isso é necessário o estudo da interação entre culturas agrícolas e espécies florestais nesse Bioma. Logo, o presente trabalho teve como objetivo avaliar uma possível influência alelopática de folhas secas em processo de decomposição de Libidibia ferrea Mart. sobre o desenvolvimento de plântulas de feijão-caupi, cv. Canapu. As folhas da espécie florestal foram coletadas no horário da manhã, e secas à 40 ºC, durante 24 horas em estufa, seguidamente foram manualmente fragmentadas e adicionadas em areia formando o substrato, adotou-se as seguinte proporções de folhas secas e areia: 1:0 (controle); 1:1/2; 1:1 e 1:2 (v:v). Os substratos ficaram decompondo por 15; 30; 45 e 60 dias, o tratamento controle sem decomposição, assim subsequentemente realizou-se a semeadura das sementes de feijão-caupi. Foi avaliado a altura de plântula e comprimento da raiz, massa seca da parte aérea, do sistema radicular e total de plântulas normais. Foi utilizado o delineamento inteiramente casualizado em esquema fatorial 4x5 (proporções de areia: folhas secas x períodos de decomposição). O período de 30 dias de decomposição ocasiona uma redução no comprimento da parte aérea, na massa seca da parte aérea, do sistema radicular e total das plântulas, o aumento das proporções de folhas secas de pau ferro afeta a massa seca da parte aérea e total de plântulas. Diante disso, o cultivo de feijão-caupi, cv. Canapu, e pau ferro em um sistema agroflorestal não é viável.
Nodulação em plantas de soja (Glycine max L. Merril) submetidas a diferentes adubações
Authors: Silva Diego Ferreira , Raimundo Erikson Kadoshe Morais , Forti Victor Augusto
Published: November 2019

Devido a sua capacidade de fixação biológica de nitrogênio, a cultura da soja tem apresentando maiores produtividades com a inoculação de bactérias do gênero Rhizobium. Entretanto, a inoculação pode ser influenciada por diversos fatores, inclusive pelo tipo de adubação realizada. Este trabalho teve por objetivo avaliar a influência de diferentes adubações na nodulação e no desenvolvimento de plantas de soja. Para isso, testaram-se as adubações orgânicas, com base em esterco bovino e cama de frango, a adubação química e um tratamento testemunha, sendo eles com ou sem inoculação de Bradyrhizobium japonicum. Foram avaliadas as variáveis de altura de planta, número de folhas, massa da matéria seca de planta, número de nódulos e massa da matéria seca dos nódulos. Os tratamentos com adubação de esterco bovino apresentaram os melhores resultados em todas as variáveis analisadas, com ou sem a inoculação de sementes. O esterco bovino se apresenta como uma excelente escolha para a adubação de soja, uma vez que possibilita um maior desenvolvimento de parte aérea, sistema radicular e número de nódulos, evidenciando que poderá contribuir para um maior rendimento no final do ciclo da cultura.
Análise da dinâmica no uso da terra maranhense na Amazônia Legal
Authors: Silva Carlos Augusto Alves Cardoso , Oliveira Kamilla Andrade de , Castro Maria Patrícia Pereira , Oliveira Ana Karla Da Silva , Sousa Washington Da Silva , Almeida Edmilson Igor Bernardo
Published: November 2019

Por muitos anos as produções agropecuárias foram as principais causas do desmatamento na Amazônia Legal, principalmente após as políticas desenvolvimentistas para região amazônica, a partir da década 60. Neste contexto, objetivou-se analisar no período de 2002 a 2017, a dinâmica espaço-temporal do uso e cobertura do solo nos municípios maranhenses situados na Amazônia Legal. O estudo aconteceu em 170 municípios que fazem parte do território da Amazônia Legal. Utilizou-se para aplicação do coeficiente de correlação, os dados referentes às áreas desmatadas, área total utilizada na agricultura e quantidade de bovinos. Empregou-se também os dados de área territorial e estimativa populacional dos municípios de maior área desmatada. Observou-se que o desmatamento na Amazônia Legal, no Maranhão, teve expressiva redução de 131.428 hectares, entre os anos de 2002 a 2017. Em contraste a isso, o número de bovinos e a área utilizada na agricultura aumentaram de 4,33 para 7,098 milhões e 1,052 para 1,573 milhões de hectares, respectivamente. O desmatamento da Amazônia Legal no Maranhão, em 16 anos, esteve amplamente (70%) concentrado em 25 municípios, principalmente os localizados próximos a importantes rodovias federais ou com fácil acesso a outros estados, como o Pará. Embora, os indicadores de desmatamento na Amazônia Legal situada no Maranhão, indiquem que há redução em 16 anos, é necessário atentar ao desenvolvimento sustentável na agropecuária, ou seja, equilíbrio entre o econômico, ecológico e social, pois há muito que pode ser preservado, ainda. Também é importante a adequada fiscalização ambiental em áreas de divisa do estado, que demonstram uma forte tendência a impactos ambientais, associados ao desmatamento.
A REVIEW ON THE CHARACTERISTICS OF A GOOD QUALITY LEADERSHIP STYLE
Authors: Ibrahim Alsarrani Wael , Jusoh Ahmad
Published: November 2019

Purpose: Leadership is an interactive concept that influences our daily lives. A quality concept is an approach and philosophy that leaders use to incorporate the leadership process into the organization successfully. Both concepts have an incremental history, correlation, and discussion. However, the two concepts have not yet been theoretically and empirically integrated. This paper attempts to integrate and discuss leadership and quality to create a single quality leadership style based on the definition of quality gurus and the leadership styles which relate more towards the quality of leadership.

Methodology: The study used a systematic literature review to review the past literature related to the field of leadership and quality management. This study provides the constructs from definitions proposed by experts in this field. Each leadership styles have many constructs that may or may not be related to quality.

Results: The study proposed a conceptual framework which combined the definitions of quality gurus and the different leadership styles. The finding of this study has contributed to the expansion of theoretical knowledge in the field of quality leadership style.

Implications: This paper indicated that the review of the literature regarding what quality gurus define as important relating to leadership. This paper provides the constructs from quality gurus definitions.

Novelty: Each leadership styles have many constructs that may or may not be related to quality. Therefore, future studies need to consider what the constructs from those leadership styles are considered effective to quality.
Cardiopulmonary Resuscitation with Extracorporeal Membrane Oxygenation for Cardiotomy Cardiogenic Shock: Case Report
Authors: ÇAKIR Habib , EYGİ Börteçin , YÜREKLİ İsmail , AŞKIN Meryem
Published: November 2019

Extracorporeal membrane oxygenation is a life-saving method when it is used with appropriate indications in cases of combined failure where cardiovascular system failure, respiratory system failure or each two system has failed with different proportions. Extracorporeal membrane oxygenation was successfully used in 1972 in a group of patients with lung failure. Today, it is widely used in patients with postoperative resistant low-flow rates. Extracorporeal membrane oxygenation may be used in cases of post-cardiotomy, resistant cardiogenic shock, or with some limited indications, in cardiopulmonary resuscitation. Extracorporeal membrane oxygenation implantation is rare with indications of both conditions. In this case report, we aimed to present a 47-year-old female patient who underwent successful extracorporeal cardiopulmonary resuscitation rather than entering cardiopulmonary bypass for the third time after sudden cardiac arrest resistant to medical therapy.
Internet, o la lógica de la seducción
Authors: Amado Suárez Adriana
Published: November 2019

La autora focaliza la problemática de Internet desde las facetas que ubican a la red en sus interaccionessociales. Desde los ejes de análisis, que ubican a la red como objeto de prácticas del mercado, tales comola publicidad y el consumo, los servicios culturales, informativos y científicos, realiza un diagnósticocrítico en torno a las barreras de acceso a la red.En continuidad con la vertiente crítica puntualiza los desafíos de la red en torno al problema de lasidentidades nacionales y regionales, en tensión con la globalización y el carácter cualitativo de lainformación disponible.
De las incertezas al tiempo subjetivo
Authors: López Neglia Claudia
Published: November 2019

La búsqueda del lugar de la posición subjetiva, constituye el núcleo que interroga sobre la educación en elcampo de la comunicación y el valor del lenguaje en la construcción del sujeto. Cuestiones tales como la desaparición de certezas, el sustento del pensar el hacer o el hacer el pensar, el desmembramiento del arte, la ciencia, la ética y la aparición de una nueva herida narcisista, que hace presente la ausencia de emancipación e igualdad, organizan un anclaje en la visión dilemática de la realidad. Desde una óptica que destaca las barreras para las elecciones del sujeto, y exalta a la escritura como práctica constitutiva que puede permitirse burlar las reglas de la retórica, la autora reflexiona sobre los nuevos modelos culturales de juventud apoyados en el individualismo. Focaliza los modos que posibilitan establecer vínculos  transferenciales para la construcción de un nuevo lazo, proponiendo al lenguaje, la nominación, la interpretación de signos, como oportunidad de producir una realidad, desde una dimensión simbólica, capaz de cohesionar y relacionar mejor el conjunto social.
Historietar
Authors: Ferrari Héctor
Published: November 2019

La historieta, como arte colectivo, construye sus sentidos desde la convergencia de varias racionalidades ydinámicas creativas. Una encuesta a un grupo de guionistas y el análisis del desarrollo histórico de losequipos de dibujantes, en Argentina, apunta a la posibilidad de que la racionalidad de los primeros seaprincipalmente artística, mientras que la de los segundos sufra, debido a presiones del mercado, undeslizamiento desde lo artístico a lo artesanal. En el curso de la investigación surgió, de los propiosguionistas, la aseveración de las limitaciones del universo creativo a un conjunto de temas limitado yrestringido.
Funciones formales y discurso creativo
Authors: Valdés Sylvia
Published: November 2019

El sujeto creador y su discurso obtienen, a lo largo del siglo XX un estatuto epistemológico nuevo: a través delos manifiestos y los textos pre- surrealistas y surrealistas que vinculan el campo de la plástica y el de la poesía,analizados por Maurice Blanchot, a través de los escritos teóricos de Roland Barthes, en torno al Grado cerode la escritura, a partir de los conceptos de diseminación y de deconstrucción planteados por Derrida. Lasideas acerca de la creatividad abandonan, ya en las primeras décadas del siglo, los laberintos especulativos delespíritu absoluto y de la contemplación para alcanzar el discurso mítico, político, periodístico. Los ejesteóricos del nuevo discurso creativo están trazados por la reformulación marxista de la dialéctica hegeliana,por el descubrimiento freudiano del inconsciente y por los textos llamados modernos que se inscriben en unalógica otra, desde Lautréamont a Mallarmé. Una concepción proveniente del formalismo ruso, en especial deJackobson: la función poética, recorre tanto este discurso como la nueva crítica.
Memoria y experimentación en el cine argentino contemporáneo
Authors: Page Joanna
Published: November 2019

Este artículo analiza dos películas argentinas que son de las más innovadoras de los últimos años, en cuantoa estética y también a su potencial para abrir nuevos espacios de debate cultural y político. En Los rubios(Albertina Carri, 2003) y Potestad (Luis Cesar DAngiolillo, 2003), la subversión deliberada de procesosconvencionales de la cinematografía es fundamental en su examen de la crisis de memoria, identidad yrepresentación en la Argentina de hoy. El artículo recurre a distintos teorías cinematográficos y culturalespara indagar sobre la compleja relación que trazan estas películas entre el cine y la política, así como suaporte importante al debate actual sobre la memoria.
Microbial communities in regions of arctic settlements
Authors: Kirtsideli Irina Yu. , Abakumov E. V. , Teshebaev Sh. B. , Zelenskaya M. S. , Vlasov D. Yu. , Krylenkov V. A. , Ryabusheva Yu. V. , Sokolov V. T. , Barantsevich E. P.
Published: November 2019

The composition and the structure of microbial communities in areas of Arctic settlements were studied. The main attention has been given to microscopic fungi. As result of observation of 5 Arctic regions 117 species of microscopic fungi are revealed in soils and anthropogenic substrates. The identification was carried out with the use ofmycological and molecular genetic methods. Most ofspecies belong to the Ascomycotina. Genus Penicillium is characterized by the most species diversity (24 species). Most offungi are destructors of various materials and potential human pathogens. Dominant species are revealed. The distribution of microorganisms in the living and working areas of polar stations, as well as the adjacent areas are described. Black-colored fungi adapted to unfavorable environment are often the dominated group of microorganisms on soils and anthropogenic substrates. The shaping of soil microbiota was shown to be related to the anthropogenic impact. Considerable similarity of microbial communities composition in the soil and man-made substrates is fixed. As result of mycological analysis of contaminated soils 76 species of microscopic fungi were observed, but 41 species of them (53.9%) were identified in the areas of Arctic polar stations on the man-made materials. These species include the representatives of the genera Alternaria, Aspergillus, Aureobasidium, Chaetomium, Cladosporium, Exophiala, Geomyces, Humicola, Penicillium, Mucor, Phoma, Rhodotorula, Trichoderma and Ulocladium. The obtained data show a significant similarity in species composition of contaminated soils and anthropogenic substrates. Human activity contributes to the distribution of cosmopolitan species, including opportunistic fungi, in the Arctic region. The high numbers of organotrophic bacteria were revealed in soil samples. Some species of microorganisms produce the organic acids in an external environment that promotes the erosion of materials.
The importance of sanitary microbiological indices in the evaluation of epidemiological safety of water use in conditions of chemical contamination of water
Authors: Rakhmanin Yu. A. , Ivanova L. V. , Artemova T. Z. , Gipp E. K. , Zagainova Anzhelika V. , Maksimkina T. N. , Krasnyak A. V. , Schustova S. A. , Kuznetsova K. Y. , Aslanova M. M. , Malysheva A. G. , Abramov E. G. , Vodyanova M. A. , Kamenetsky D. B. , Aleshnya V. V.
Published: November 2019

The increasing chemicalization of production and life leads to the pollution of water bodies by chemicals, the effect of which on the micro - and macro - organisms is poorly understood. This section of the study in sanitary bacteriology is becoming ever more topical and is an important task of modern hygienic science. One of complicacies of the study of the problem is related with the fact that the presence of only experimental data fails to be sufficient, as the impact of any given chemical substance on different bacteria in the experiment does not mean that under natural conditions, similar results will be obtained. One reason for this may be the inhibitory effect of the given chemical on biological properties of bacteria, while in field conditions in the water several chemicals interacting with each other can exist. In this regard, the aim of the work was to assess the indicator value of sanitary and microbiological indices of epidemic hazard of water use in conditions of chemical pollution of surface water bodies.
Trends of change in demographic indices of population in the area of oil and gas deposits of the republic of Kazakhstan
Authors: Kenessaryiev Usen I. , Yerzhanova A. E. , Kenessary D. U. , Kenessary A. U.
Published: November 2019

According to assured resources of hydrocarbons the Republic of Kazakhstan (RK) is among ten largest oil countries in the world, trailing only some states of the Middle East, Latin America, as well Russia and the USA. Public health state is the one of most important indices of social development, the manifestation of the economic and sanitaryhygienic welfare, as well as national defense capability and cultural potential of the state. In relation with the intensive development of oil and gas fields the problems of environmental protection and healthcare of the population in these regions occur critically. Therefore, it causes keen interest both from the side of researches and practical health care workers. Rapid development of the oil and gas industry leads to changes in a medical and demographic situation of given regions that is related both with the natural migration of the population and other migratory processes. According to data of the Ministry of Energetics and natural resources of RK, the Karachaganak oil-gas condensate deposit is considered to be the one of the largest in the world. For the next 40 years, the field is becoming the stable financial donor of the country. Currently Karachaganak field is considered to be the one of the largest investment projects in Kazakhstan. The studied oil and gas condensate field is located in the Burlin district of West Kazakhstan region, which is 140 km far from the city of Uralsk and 160 km far from the city of Orenburg. The field was discovered in 1984.
Quantitative spatio-temporal assessment of pollutants in atmospheric air in the combustion of the fuel of road transport
Authors: Rakhmanin Yu. A. , Levanchuk Aleksandr V.
Published: November 2019

In the paper there are presented results of the study of the number of compounds of metals and polycyclic aromatic hydrocarbons (PAH) emitted into the environment with exhaust gases of road transport. In the composition of the exhaust gases 11000 tons of heavy metal compounds and 49.8 tons of highly toxic of PAHs in the soil were established to annually be emitted into the ambient air of St. Petersburg. There was justified the application of the method of the emission inventory of pollutants into the atmosphere from the combustion of the fuel of vehicles. There was established the quantity of PAH and metals emitted to the environment in dependence on the intensity of the traffic flow. The implementation of results of the study will allow to improve the quality of the sanitary and epidemiological surveillance in the territories of the cities with the developed road transport industry.
Regional problems of the provision of hygienic reliability of drinking water consumption
Authors: Tulakin Andrey V. , Tsyplakova G. V. , Ampleeva G. P. , Kozyreva O. N. , Pivneva O. S. , Trukhina G. M.
Published: November 2019

Problems of hygienic reliability of the drinking water use in regions of the Russian Federation are observed in the article. The optimization of the water use was shown must be based on the bearing in mind of regional peculiarities of the shaping of water quality of groundwater and surface sources of the water use, taking into account of the effectiveness of regional water protection programs, programs for water treatment, coordination of the activity of economic entities and oversight bodies in the management of water quality on the basis of socio-hygienic monitoring. Regional problems requiring hygienic justification and accounting, include such issues as complex hydrological, hydrogeological, climatic and geographical conditions, pronouncement of the severity of anthropogenic pollution of sources of water supply, natural conditions of the shaping of water quality, efficiency of the water treatment. There is need in the improvement of the problems of the water quality monitoring, including with the use of computer technology, which allows to realize regional hygienic monitoring and spatial-temporal analysis of the water quality, to model the water quality management, to predict conditions of the water use by population in regions taking into account peculiarities of the current health situation. In the article there is shown the practicability of the so-called complex concept of multiple barriers suggesting the combined use of chemical oxidation and physical methods of the preparation of drinking water. It is required the further development of legislation for the protection of water bodies from pollution with the bigging up the status of sanitary protection zones; timely revision of the regulatory framework, establishing sanitary-epidemiological requirements to potable water and drinking water supply. The problem of the provision of the population with safe drinking water requires complex solution within the framework of the implementation of target programs adopted at the Federal and regional levels.
Retrospective analysis of primary disability among employees of enterprises for the production of technical ceramics
Authors: Serebryakov Pavel V. , Khoshtariya N. V. , Mustafina I. Z.
Published: November 2019

On the example of588 disability cases registered in employees of the plant for the production of technical ceramics during the 1975-2014 the analysis of the dynamics of illness, gender and age structure of disability indices on the main Origlnarartlcie and auxiliary units of the enterprise was executed for the interval of 10 years periods. There were followed trends in the alteration of the structure of the disability caused by the socio-economic, hygienic and demographic factors.
Hygienic aspects of the occurrence of ecology-dependent diseases in children and adolescents of the Primorsky Krai
Authors: Izmaylova Oksana A. , Kiku P. F. , Yarygina M. V. , Moreva V. G. , Ananev V. Yu. , Kosolapov A. B.
Published: November 2019

With the use of the methodology of the system approach there were obtained results of the evaluation of the occurrence of ecology-dependent diseases in children and adolescents in bioclimatic zones of the Primorsky Krai. Analysis of the prevalence of the main classes of ecologically dependent diseases according to the appealability (diseases of the respiratory system, diseases of digestive organs, diseases of blood and blood-forming organs, diseases of the circulatory system, diseases of the skin and subcutaneous tissue, diseases of the genitourinary system, neoplasms, congenital anomalies, infectious diseases) was performed with the use of official statistical report forms No. 12 (ICD-10) over the period of2000-2014. Informational Database of parameters of the environment was represented by the factor modules: 6 - sanitary, and 5-environmental ones). By means of the method of the regression analysis there was established the relationship between environmental factors and the prevalence of ecological-dependent diseases, there were calculated values of the factor loads influencing on the indices of the morbidity rate in children and adolescents. The analysis of morbidity according to classes showed that during the study period, in the total there was a gain in the indicator ecologically dependent morbidity rate in children by 33.3%, in adolescents - by 35.3%. In the children and adolescent population there are prevalent diseases of the respiratory system - 67.3% and 52.45%, respectively; further in children and adolescent groups diseases of the digestive system - 9.45% and 17.08% take place; then in the children cohort are infectious diseases, and in adolescents - diseases of the genitourinary system. The level of ecologically dependent morbidity rate is determined by the complex impact of environmental and hygienic factors, with a predominance of sanitary-hygienic component and related with it parameters of the environment of habitation, such as chemical pollution of urban areas (soil, air, water sources), nevertheless biotropic factors (temperature, humidity, fog, number of days with biologically active solar radiation) make a significant contribution. The revealed various degree of the response of children and adolescents through the prevalence rate level to the exposure of ecological and hygienic factors of environment should be taken into account in the development and carrying out medical-preventive measures.
The method of multicomponent determination of herbicides of various chemical classes in water
Authors: Bragina I. V. , Fedorova Natalia E. , Volkova V. N. , Egorchenkova O. E. , Mukhina L. P. , Larkina M. V.
Published: November 2019

In the work there are considered results of the development of the multicomponent method of measurement of concentration of herbicides of various chemical nature under their joint presence in the water. There was justified the optimality of application of HPLC-DAD (the working wavelength of 240 nm) for the determination of levels of 10 active ingredients of herbicides of class of sulfonylurea (metsulfuron-methyl, nikosulfuron, sulfometuron-methyl, thifensulfuron-methyl, triflusulfuron-methyl), imidazolinone (imazapyr, imazethapyr), 2,6-Bis[(4,6-dimethoxy-2- pyrimidinyl)oxy]benzoic acid (bispyribac acid), triazol-pyrimidines (Penoxsulam), a benzoylpyrazole compound (Topramenzone). For the concentrating and cleaning of samples of water there were used cartridges for solid-phase extraction of Oasis HLB - the macro porous copolymer made on the basis of the balanced ratio of 2 monomers - lipophilic divinylbenzene and hydrophilic N-vinylpirrolidone. The range of the detected concentrations in water was volatile between 0.0005 and 0.005 mg/L, values of standard deviation vary in the range of 1.8-3.9%. Chlorine-containing acidic herbicides were analyzed by the method of GC-ECD and GC-MS (IE) after preliminary converting of compounds into flying derivatives with the use of diazomethane. Satisfactory extraction of substances from a water sample may be achieved by classical extraction in the system “liquid-liquid” with the application of Methyl tert-butyl ester. For cleaning of the derivatized sample there were used cartridges for solid-phase extraction on the basis of silica gel. The range of the determination of 9 active ingredients referring to classes of phenoxy-acetic acid (2,4- D, MCPA), pyridinecarboxylic (aminopyiralid, picloram, clopyralid), benzoic acids (dicamba), benzothiadiazinone (bentazone), biphenyl ester (acifluorfen) and a chloroacetamide (acetochlor) - 0.0001-0.001 mg/L, SD values vary in the range of 1.8-33%.
Clinical, biochemical and allergological indices characterizing occupational diseases of the bronchial and pulmonary system in employees at aluminium production
Authors: Kudaeva Irina V. , Dyakovich O. A. , Beygel E. A. , Masnavieva L. B. , Naumova O. V. , Budarina L. A.
Published: November 2019

There are many harmful factors that possess a damaging impact on the body of employees at aluminum production. It leads to the development of bronchial asthma (BA), chronic nonobstructive bronchitis (CNB) and chronic obstructive pulmonary disease (COPD). The pathogenesis of these disorders, as well as sensitizing effect offluorine in the aluminum production is not fully understood. The purpose of this work was to study the characteristics of laboratory indices in patients with occupational diseases of the respiratory system. In workers of aluminum production with the diagnosis of occupational diseases of respiratory system (15 patients with a diagnosis of asthma, 30 CNB cases, 20 COPD patients) we evaluated the content of total protein, total cholesterol, high density lipoprotein cholesterol (HDLC), total calcium, phosphorus, ceruloplasmin, hematological indices and performed emigration of leukocytes braking test (TTEEL). Clinical and biochemical profile ofpersons with occupational asthma was characterized by a low level of total calcium and ceruloplasmin, a high concentration of phosphorus in the blood serum and inhibition of leukocyte emigration in the test with sodium fluoride. For aluminum production CNB workers characteristic active proatherogenic process was pronounced by a decrease in the HDLC level and an increase in atherogenic index; higher hematocrit value and concentration of erythrocytes, and more than 50% of cases of sensitization to the presence of sodium fluoride. COPD cases had occupational lower average concentration of hemoglobin in the erythrocyte, total protein in serum, as well as polymorphic variant response to sodium fluoride in the form of a depression and activation of leucocytes emigration.
Psychophysiological state of children in conditions of informatization of their life activity and intensification of education
Authors: Kuchma V. R. , Tkachuk Elena A. , Tarmaeva I. Yu.
Published: November 2019

The transition to a new stage of the development - the information society is an objective reality and has an influence on all areas of the activity of the society, including the establishment of a child as an object of the hygienic research. In conditions of the general informatization of the society, the appearance of so-called “clip thinking,” explains the maladjustment of educational technologies to mechanisms of children ’ and teenagers ’perception and is confirmed by the growth of the school pathology and the gain in the morbidity rate. In the investigation on the example of the educational institutions of Irkutsk it was executed the evaluation of the impact of the intensification of informatization of education and personal development. For the investigation there were formed 2 groups ofpreschools with different levels of informatization in the same preschool institution of the central district of the city of Irkutsk but in different periods of time. In total there were observed 211 children aged of 5.5 to 6.5 years. For the study the influence of the intensification (and informatization of training there were formed 2 groups of small schoolchildren with different levels of intensification (and informatization) of education. The total number of cases accountedfor 465 children aged of 7-9 years. There were suggested methodical approaches to the estimation of the health status of the children, with taking into account the inevitable influence offactors of informatization and the intensification of education. The performed investigations have allowed to reveal the following tendencies in the shaping of the psychophysical state of health and development of children: an increase of level of informatization of education and personal and accomplishment; intensification of learning working; reduction of the attention level; imagination and visual divergence; capability to the linear differentiation and construction of inferences; fear to fail to meet the expectations of surrounding people and low resistance to stress; the increase speed of data processing along with fall in quality; the gain in hyperactivity.
Features of the lipid exchange in workers employed in aluminium productions
Authors: Kudaeva Irina V. , Dyakovich O. A. , Masnavieva L. B. , Popkova O. V. , Abramatets E. A.
Published: November 2019

Aluminum production can be referred to the category of industries of the increased health hazard for the workers. During technological process of receiving aluminum the air of a working zone is polluted by a large number of harmful substances. Workers are exposed to the complex of toxicants possessing a polytropic impact on the body. The most significant consequences are violations of different types of metabolism in the organism, including lipid metabolism. The purpose of the study is the investigation of the state of lipid metabolism in persons working in the production of aluminum. The object of research was 108 male workers of aluminum production suffering from occupational pathology of airways. The group of comparison was consisted of 103 men, apparently healthy, not exposed to toxicants. There was determined the content of the total cholesterol (TC), high and low density lipoprotein cholesterol (HDLC and LDLC), triglycerides (TG), phospholipids (PL), atherogenic index (AI). Statistical processing was performed with the use of software «Statistica 6.0». There were established statistically significant differences of indices of lipid exchange in the persons occupied in aluminum production when related to the group of comparison. IA values in persons from the study group proved to be higher than in the comparison group, due to elevated levels of TC and LDLC. The TG and PL level was also higher. The values of IA, TC and TG in workers of aluminum production in more than 50% cases exceeded the reference values. The average concentration of HDL cholesterol in both groups did not differ, and was above the lower reference boundary. Established features of lipid metabolism in workers of aluminum allow us to suggest the distinction in mechanisms of developing proatherogenic disorders from previously established ones for workers exposed to other chemicals. One of the causes of the shaping of these disorders can be oxidative stress, which in turn serves as a response to the exposure of complex of toxic substances to workers.
Socio-economic aspects of epidemiology of helicobateriosis
Authors: Fedichkina Tatiana P. , Solenova L. G. , Zykova I. E. , German S. V. , Modestova A. V. , Kislitsyn V. A. , Rakhmanin Yu. A. , Bobrovnitsky I. P.
Published: November 2019

There are considered special social and economic aspects of the epidemiology of Helicobacter pylori. These aspects acquired the particular importance for the last time due to the fact that the provision of the people with pure water has been becoming the focus of the attention of geopolitical and socio-economic interests in a number of countries. The availability ofpure drinking water serves a marker of the socio-economic state of the territory and the population living there. In Russia where different climatic conditions are deposited by considerable regional differences in the conditions of communal services caused both by various level of the socio-economic development of the territory, the supplementation with pure drinking water serves as the social determinant of the ecological conditions of the population’s life. This particularly has impact on the unfeasible technical state of the water distribution systems, microorganism ecology of which can substantially affect public health. The performed by authors a specialized screening ofpresented at the official web site of the joint-stock company «Mosvodokanal» current data concerning the quality of drinking water consumed by 2500 Moscovites, tested for the Helicobacter pylori infection revealed no deviations from the sanitary standards in the water received by the consumers. Along with that, the comparison of the map documents of the distribution of the Helicobacter pylori infection in Moscow with the distribution of citizens’ complaints of the decline of the quality of tap water has revealed a territorial fastening of the high values of the population infection rate of n^ylori and the urban sites with the greatest number of complaints. In the microbial ecology of water-distribution systems there are tightly aligned problems of their epidemiological safety, technical state and economic damage caused by corrosion as a result of microbiotic activity. In contrast to acute bacterial and viral infections which are deemed of the greatest importance when assessing the sanitary condition of water sources and water-distribution systems, the consequences of infection with H. pylori may not be manifestedfor a long time but some years later they may be manifested as serious chronic diseases (from gastritis to adenocarcinoma of the stomach and a wide range of extraintestinal pathologies), which causes great social and economic losses. Thus, the socio-economic aspect of the epidemiology of helicobacteriosis includes at least two components: the technic - the maintenance of the feasible technic and sanitary state of the water distribution systems and the medico-social - expenditures for screening and treatment of infected patients. In total they are an inseparable part of the prevention of socially-important diseases in the public health system.
Microscopic soil fungi - bioindicators organisms contaminated soil
Authors: Donerian Larisa G. , Vodianova M. A. , Tarasova Zh. E.
Published: November 2019

In the paper there are considered methodological issues for the evaluation of soil biota in terms of oil pollution. Experimental studies have shown that under the exposure of a various levels of oil pollution meeting certain gradations of the state and optimal alteration in microbocenosis in sod-podzolic soils, there is occurred a transformation of structure of the complex of micromycetes and the accumulation of toxic species, hardly typical for podzolic soils - primarily represantatives of the genus Aspergillus (A.niger and A. versicolor), Paecilomyces (P.variotii Bainer), Trichoderma (T.hamatum), the genus of phytopathogens Fusarium (F.oxysporum), dermatophytes of genus Sporothrix (S. schenckii) and dark-colored melanin containing fungi of Dematiaceae family. Besides that there are presented data on the study of microbiocenosis of the urban soil, the urban soil differed from the zone soil, but shaped in similar landscape and climatic conditions, and therefore having a tendency to a similar response from the side of microorganisms inhabiting the soil. Isolated complex of soil microscopic fungi is described by many authors as a complex, characteristic for soils of megalopolises. This allowed authors of this work to suggest that in urban soils the gain in the occurrence of pathogenic species micromycetes also increases against a background of chronic, continuously renewed inflow of petroleum hydrocarbons from various sources of pollution. Because changes in the species composition of micromycetes occurred in accordance with the increasing load of oil, so far as microscopic soil fungi can be recommended as a bioindicator organisms for oil. In the article there is also provided information about the distinctive features of modern DNA identification method of soil microscopic fungi and accepted in our country methodology of isolation of micromycetes with the use of a nutrient Czapek medium.
De la arquitectura a la prospectiva
Authors: Martinez-Corral Aurora Maria , Cuéllar Domingo
Published: November 2019

El presente trabajo realiza un análisis arquitectónico conjunto y comparado de los principales edificios de viajeros construidos por la Compañía de los Caminos de Hierro del Norte de España (1856-1941) desde la premisa de que perviva todo o al menos parte del edificio original o reformado por parte de la propia compañía. Así, el análisis realizado se estructura en los tres niveles fijados en la clásica tríada vitruviana: histórico-constructivo (firmitas), funcional (utilitas) y compositivo-estilístico (venustas). De las conclusiones extraídas se realiza una prospectiva sobre cómo se están protegiendo estos elementos, qué es lo que debemos proteger y cuál es la tendencia de usos en los mismos. En la base subyace la necesidad de establecer valores y definiciones claras y concretas sobre este patrimonio que permitan la unificación de criterios y la discusión sobre el patrimonio ferroviario para uso general, así como huir del catálogo o inventario estereotipado y estático extrapolado de otras arquitecturas y que, quizá, no se ajuste a la realidad de estos edificios.