bluuebunny/crossref_metadata_2025 huggingface dataset:
The Burr X Exponentiated Weibull Model: Characterizations,Mathematical Properties and Applications to Failure and Survival Times Data
Authors: Khalil Mohamed G. , Hamedani G. G. , Yousof Haitham M.
Published: March 2019

In this article, we introduce a new three-parameter lifetime model called the Burr X exponentiated Weibull model. The major justification for the practicality of the new lifetime model is based on the wider use of the exponentiated Weibull and Weibull models. We are motivated to propose this new lifetime model because it exhibits increasing, decreasing, bathtub, J shaped and constant hazard rates. The new lifetime model can be viewed as a mixture of the exponentiated Weibull distribution. It can also be viewed as a suitable model for fitting the right skewed, symmetric, left skewed and unimodal data. We provide a comprehensive account of some of its statistical properties. Some useful characterization results are presented. The maximum likelihood method is used to estimate the model parameters. We prove empirically the importance and flexibility of the new model in modeling two types of lifetime data. The proposed model is a better fit than the Poisson Topp Leone-Weibull, the Marshall Olkin extended-Weibull, gamma-Weibull , Kumaraswamy-Weibull , Weibull-Fréchet, beta-Weibull, transmuted modified-Weibull, Kumaraswamy transmuted- Weibull, modified beta-Weibull, Mcdonald-Weibull and transmuted exponentiated generalized-Weibull models so it is a good alternative to these models in modeling aircraft windshield data as well as the new lifetime model is much better than the Weibull-Weibull, odd Weibull-Weibull, Weibull Log-Weibull, the gamma exponentiated-exponential and exponential exponential-geometric models so it is a good alternative to these models in modeling the survival times of Guinea pigs. We hope that the new distribution will attract wider applications in reliability, engineering and other areas of research.
Novas Tecnologias Terapêutico-Religiosas: notas sobre a apometria como técnica e campo de expressões religiosas híbridas
Authors: Da Silveira Emerson José Sena , Mendonça Izabela Matos Floriano
Published: March 2019

Utilização de terapias religiosas no tratamento de doenças, sempre foi alvo de discussões e conflitos dentro e fora do campo religioso brasileiro. Ampliando as polêmicas sobre as terapias de cura espíritas kardecistas, em 1965, surge dentro de um hospital espírita em Porto Alegre, a apometria, técnica de cura espiritual aberta ao sincretismo, hibridismo e bricolagem, vista por kardecistas tradicionais como não pertencente ao kardecismo. Contudo, aderida tanto pelas novas configurações do campo espírita quanto por terapeutas diversos que reinterpretando sua bases religiosas atualizam cada qual a sua maneira, fazendo que ela se configure como uma terapia espiritual alternativa.
A Compreensão da Realidade Social dos Idosos à Luz da Fenemenologia Social de Alfred Schutz
Authors: Peretti Clélia , Sturba Rosangela
Published: March 2019

O presente artigo trata do fenômeno do envelhecimento na sociedade contemporânea e apresenta as contribuições do método fenomenológico de Alfred Schutz na compreensão da realidade social do idoso no Brasil. Particular ênfase é dada a categoria “mundo da vida”, ou seja, o mundo dos conhecimentos para interpretar o mundo de relações, das vivências e os significados que estas adquirem para a vida presente e futura.
As Obras de Misericórdia e Piedade em John Wesley e no Metodismo Contemporâneo: base para uma Teologia Pública?
Authors: Renders Helmut
Published: March 2019

Este artigo investiga as misericordiae et pietatis opera da época medieval, as works of mercy and piety em John Wesley e os atos de piedade e obras misericórdia no Metodismo contemporâneo como uma continua releitura e ampliação de significados e funções. Lembra-se, primeiro, da criação do conceito na época medieval, em superação de modelos dicotômicos da fé e em busca da ampliação do ideal de um misticismo enclausurado como forma superior da vida cristã. Resgate-se, segundo, a compreensão originária wesleyana das obras de misericórdia como meios prudenciais da graça, em superação de dinâmicas unilaterais de processos sociais e em busca de dinâmicas mais participativas e solidárias; propõe-se falar, terceiro, de obras de misericórdias políticas como terceira categoria ao lado e não desvinculado das obras de misericórdia físicas e espirituais, na tentativa de integrar as demandas dos séculos 20 e 21 como século do social e da ecologia.
Introduction to NJWLS 2019-1
Authors: Buch Anders
Published: March 2019

In this issue, we present four articles that illuminate working life in the Nordic coun- tries. These articles span a diverse area of work practices and accentuate different aspects of regulative mechanisms and policies that structure the unfolding of contemporary work in Norway, Sweden, Finland, and Denmark. The research examines the minute and subtle practices and narratives of human resource experts in Sweden that are active in organizational recruitment processes, and it explores pension schemes in Norwegian companies. In the articles, we learn about the temporary liminal spaces of professionals in Finland, and we get a review of the literature on employer strategies for preventing mental health related work disabilities (...)
Which Norwegian Enterprises Offer the Poorest and the Best Pension Entitlements?
Authors: Midtsundstad Tove
Published: March 2019

The National Insurance Scheme (NIS) remains the cornerstone of the Norwegian pension system. The introduction of a mandatory occupational pension in 2006, and the restructuring of the contractual pension (AFP) in 2008, have, however, significantly increased the importance of labor market based pensions. Entitlement to AFP and contributions to occupational pensions are largely determined by individual employers, thus resulting in significant different future pension benefits and opportunities to retire early among employees. This article investigates what characterizes private sector enterprises that offer their employees both entitlement to AFP and a ‘good’ occupational pension, compared with enterprises that only offer a minimum pension. Analyzing data from a survey carried out in 2012 among 1107 private sector companies, I find that companies who offered an occupational pension before such schemes became mandatory in 2006 and companies where the social partners had conducted negotiations concerning pensions, were more likely to offer ‘good’ labor market based pensions. Both of these factors are linked to union strength and strong social partner relations.
The Challenge of Recruiting Underrepresented Groups – Exploring Organizational Recruitment Practices in Sweden
Authors: Osman Ali , Thunborg Camilla
Published: March 2019

The aim of this article is to explore organisational recruitment practices from human resources (HR) experts’ narratives and discuss the challenges of recruiting underrepresented groups in relation to these practices. From the HR experts’ narratives, we identify four organisational recruitment practices: the informal, the pragmatic, the standardised and the strategic. These practices consist of, for example, ‘subjective’ judgements versus ‘objective’ criteria and are construed in relation to different rationalities, which also give rise to various dilemmas in relation to underrepresented groups. From our analysis, there seems to be a paradox between enhancing diversity and counteracting discrimination. Organisational recruitment practices that are counteracting discrimination do not necessarily enhance diversity and recruitment practices that radically work with enhancing diversity can be seen as discriminatory. We thereby draw the conclusion that there is no effective practice for the recruitment of underrepresented groups in the labour market. This is a dilemma for HR experts and a challenge for the Swedish labour market in general.
The protective effects of Crocin on testopathy in fat-fed and streptozotocin-treated diabetic rats: An experimental study
Authors: Mirzaee Saeed , Bayatpoor Mohammad Ehsan , Shahyad Shima , Mohammadi Mohammad Taghi , Bahari Zahra
Published: March 2019

Background: Male hypogonadism is associated with type II diabetes mellitus due to testicular dysfunction. Medicinal plants have received considerable attention for the management of diabetes and its complications.
Objective: The aim of present study was to evaluate the anti-diabetic and protective influence of Crocin on testopathy in diabetic rats.
Materials and Methods: In this experimental study, type II of diabetes mellitus was induced by high-fat diet and low dose of streptozotocin. Male Wistar rats (8 weeks,150–200 gr, 18 rats; n= 6 per group) were divided into a control group (standard diet), diabetic group (streptozotocin+high-fat diet), and treatment group (High fat diet+streptozotocin+Crocin at 20 mg/kg/day, i.p. for 60 days). After 60 days, animals were euthanized, testis and epididymis were dissected, and weights of testes and sperm count were analyzed. Hematoxylin-eosin-stained was done for histopathological examination. Blood samples were collected for the assessment of serum glucose and cholesterol.
Results: High-fat diet and streptozotocin significantly increased the serum glucose and cholesterol levels as compared to the control group (p≤ 0. 001). Moreover, there was a significant decrease in the weight of right (p= 0.008) and left testes (p≤ 0.001) and also the total sperm count (p= 0.023) in the diabetic group compared with the control group. Current results also identified that type II diabetes mellitus induced degeneration in the morphology of seminiferous tubules. Application of Crocin could significantly decrease serum glucose and cholesterol levels (p= 0.003). Furthermore, Crocin treatment significantly increased the weight of the right (p= 0.026) and left (p= 0.014) testes and total sperm count (p= 0.000). Also, Crocin could attenuate the pathological changes of the testes in the treatment group.
Conclusion: Present findings concluded that Crocin treatment improved diabetic testopathy and impairment of seminiferous tubules induced by high-fat diet and streptozotocin.
Key words: Crocin, Reproductive system, Blood glucose, Streptozotocin, Diabetes.
Trans-arterial embolization of acquired uterine arteriovenous malformation after Cesarean section: A case series
Authors: Harzif Achmad Kemal , Haloho Agrifa , Silvia Melisa , Pratama Gita , Purwosunu Yuditiya , Wibawa Aria , Sidipratomo Prijo , Pandelaki Jacub
Published: March 2019

Background: Acquired uterine arteriovenous malformation (AVM) is a rare condition due to traumatic episodes in cesarean section. The patient can suffer from life-threatening hemorrhage or recurrent vaginal bleeding. Establishing this diagnosis is difficult, often misdiagnosed due to lack of information and number of cases. Trans-Arterial Embolization (TAE) procedure is rarely performed in our center. All of the cases were found with history of massive bleeding and diagnosed lately after recurrent bleeding history. Even though promising, one of our cases failed to be managed with TAE. It is important to diagnose early symptoms of AVM in order to prevent the life-threatening event.
Case presentation: In this case series, four cases of AVMs after cesarean procedures will be reviewed. One could be diagnosed in less than a month but the other three took several months. The symptom of vaginal bleeding might occur a few weeks after the procedure is done, and most patients need transfusion and hospitalization. Three out of four patients were initially sent to the hospital in order to recover from shock condition, and one patient was sent for a diagnostic procedure. AVMs diagnostic was established with ultrasound with or without angiography. Three of our cases were succeeded by performing TAE procedure without further severe vaginal bleeding. One case failed to be treated with embolization and had to proceed with hysterectomy.
Conclusion: AVM should be considered early-on in patient with abnormal uterine bleeding and history of cesarean section. Embolization is still the first-choice treatment of AVMs, otherwise, definitive treatment is hysterectomy in a patient without fertility need, or impossible to perform TAE.
Key words: Trans-arterial embolization, Acquired uterine arteriovenous malformation, Cesarean section.
MALIGNANT NEOPLASMS IN THE REPUBLIC OF BURYATIA: A RETROSPECTIVE ANALYSIS
Authors: Efimova Natalia V. , Motorov V. R. , Mylnikova I. V. , Blokhin A. A.
Published: March 2019

Introduction. The problem of the carcinogenic danger of the gain in cancer incidence in large cities and industrial centers is under consideration, but there are no studies on the epidemiological and hygienic aspects of the prevalence of cancer pathology in the regions of Siberia. Material and methods. Incidence and mortality rates of malignant tumors were studied as in general as corresponding to the leading localizations in accordance with the International Classification of Diseases for 1991-2015. To reduce the uncertainties of the analysis associated with the small population of the rural areas of the Republic of Buryatia (RB), the average value for five-year periods was calculated. Results. The epidemiological analysis of the long-term morbidity and mortality rate in cancer cases indicates negative trends. The gain in cancer prevalence was revealed to be 1.5 times higher in the RB. The increase of the index value is especially pronounced in the following localizations: blood and hemopoietic organs by 2.8 times, genitourinary system - 2.8 times, endocrine system - 2 times, digestive organs - 1.5 times. Malignant neoplasms of the lungs (33.3 ‰00 of the population) and the stomach (28.1 ‰00) are most often recorded. Using repeated georeferenced measurements of oncological pathology from the general population in the RB, we identified clusters highlighting a particular structure in the spatial distribution of high and low values of the mortality and incidence rate. Conclusion. The further direction of research is discussed: a detailed study of the impact of carcinogenic risk factors (industrial, natural and climatic origin, lifestyle) and the organization of medical care for the population in identified areas of risk.
CHANGE OF SOME BIOCHEMICAL INDICES DEPENDING ON EXPOSURE LOAD IN STAFF WORKERS IN CONTACT WITH VINYL CHLORIDE
Authors: Katamanova Elena V. , Eshchina I. M. , Kudaeva I. V. , Masnavieva L. B. , Dyakovich M. P.
Published: March 2019

Introduction. The paper presents the results of a survey of 42 experienced workers of a chemical enterprise exposed to vinyl chloride (VC). The purpose of the study is to establish the characteristics of changes in some biochemical indices in workers exposed to vinyl chloride, depending on the exposure load. Material and methods. A neurological, general therapeutic, ultrasound examination, biochemical studies with the determination of lipid profile, lipid peroxidation, and antioxidant protection, neurotransmitters was executed. The toxic exposure load (TEL) for the entire period of internship has been determined. Non-parametric methods of statistical analysis with the determination of the Mann-Whitney U-test were used. Results. Clinical manifestations of employees working in contact with VC included asthenic disorder with cognitive impairment and autonomic dysfunction syndrome, arterial hypertension, and gastrointestinal diseases. The prevalence of cognitive impairments and hypertension has been established to increases with an extremely high level of exposure load. In individuals with an extremely high level of exposure, higher concentrations of LDL cholesterol, atherogenic index (AI) and serotonin levels, and a decrease in the level of ceruloplasmin were noted. An ultrasound examination of the liver revealed an increase in the anteroposterior size of the right lobe in the group of experienced workers who were in contact with VC, compared with the control (p = 0.03). Discussion. Among the indices of lipid metabolism, pro-atherogenic cholesterol fractions are a more sensitive marker, reflecting the degree of exposure to VC. A decrease in the concentration of ceruloplasmin is probably associated with a weakening of the antioxidant defense mechanisms with an increase in the level of TEL. Increased serotonin levels in individuals with extremely high levels of TEL, confirms the prevalence of cognitive impairment in this group. In the group of individuals with extremely high levels of TEL, a statistically significant increase in LDL cholesterol, IA, a decrease in ceruloplasmin concentration, an increase in serotonin serum levels due to impaired metabolic and protective functions of the liver as a result of prolonged contact with VC were noted.
DYNAMICS OF CHANGES IN LEVELS OF CYTOKINES AND NEURONAL ANTIBODIES IN VINYL CHLORIDE WORKERS IN THE MANUFACTURE
Authors: Bodienkova Galina M. , Kurchevenko S. I. , Boklazhenko E. V.
Published: March 2019

Introduction. Vinyl chloride, which has a polytropic effect on the human body is the main harmful substance in the production of vinyl chloride and polyvinyl chloride. The aim of the study was to analyze the dynamics (after 5 years) of the cytokine profile and autoimmune response against the proteins of the nervous tissue in workers with continued chronic exposure to toxicants. Material and methods. The paper presents the results of a laboratory immunological examination of those working in the production of vinyl chloride with an average level of occupational risk caused by exposure to vinyl chloride and 1,2-dichloroethane. Results. The character of cytokine regulation disorders in a primary examination in healthy workers and persons with initial manifestations of neurointoxication with vinyl chloride is characterized by a rise in proinflammatory IL-1β and IL-4 with a simultaneous decrease in IL-2 and TNFα, and a more pronounced hyperproduction IL-1β against the background of a decline in IL-4 and IL-2. At repeated examination 5 years after the increase of immunity intensity in healthy workers and disbalance in the system of pro - antiinflammatory cytokines in persons with initial manifestations of neurointoxication was registered, which determines the different degree of the manifestation of compensatory and protective responses that do not allow the full implementation of protective mechanisms in the case of chronic exposure. Discussion. A more pronounced decrease in immunoreactivity relative to the proteins of the nervous tissue in workers with initial manifestations of neurointoxication in the dynamics of chronic effects of production factors is shown. The results obtained made it possible to identify informative biomarkers (IL-1β, TNFα, INFγ, IL-4, S-100, NF-200, TMP) that allow us evaluating the degree of the expression of compensatory-protective responses of the immune response and can be used to monitor the development of the pathological process. Conclusion. Identification of the leading immunopathogenetic factors of neurological deficiency can be the basis for elaborating a method for predicting the individual risk of developing professional neurointoxication.
ALTERATION OF THE BRAIN AND LIVER TISSUE OF ALBINO RATS WITH LEAD INTOXICATION IN THE DYNAMICS OF THE EXPERIMENT
Authors: Titov Evgeny A. , Yakimova N. L. , Novikov M. A.
Published: March 2019

Introduction. Lead intoxication is one of the most common intoxications with heavy metals. Lead is a global anthropogenic pollutant. The widespread use of lead in human production activities is the main cause of lead pollution of the environment. Lead is capable of the accumulation in the environment and organisms. Central nervous system, detoxification, and excretion systems and hematopoietic system are the most sensitive to lead exposure. The results of experimental modeling of the toxic effect of lead acetate on the organism of albino rats are presented in this paper. Material and methods. Animals with an average mass of 200 g received lead acetate in a dose of 70.5 mg/kg with water. Structural disorders in the brain and liver tissues were determined by methods of review histology. The examination was carried out in two terms - immediately after the end of the exposure and after 9 weeks in a remote post-contact period. Results. The disorder of blood circulation in blood vessels, an increase in the number of stellate macrophages in the Kupffer cells and polynuclear hepatocytes in the liver, and a decrease in the total number of neurons in the brain tissue, development of perivascular edema in the brain tissue and diapedesis of formed blood elements in the perivascular space were revealed as a result of an experiment. There is an increase in the number of neuronophagy acts. In this case, the number of degenerately altered neurons did not differ from the control values. Discussion. Thus, the effect of lead on the body is characterized by a violation of the functions of the circulatory system, the development of a pronounced macrophage response in the liver tissue and death of neurons in the cerebral cortex. Conclusion. The obtained data indicate compensatory processes in the liver tissue of experimental animals to arise under the influence of high doses of lead acetate and persist in a remote post-contact period.
EVALUATION OF THE QUALITY OF LIFE IN THE POPULATION OF THE REGION BY THE MULTI-DIMENSIONAL ANALYSIS
Authors: Leshchenko Yaroslav A. , Lisovtsov A. A.
Published: March 2019

Introduction. The methodology of studying the quality of life is one of the intensively developed scientific directions. The aim of the work is to assess the quality of life in the population of the region on the basis of multidimensional mathematical analysis of a wide range of environmental factors and living conditions. Material and methods. The study was conducted on the example of the Irkutsk region. In order to establish the features of the formation of the quality of life under the influence of a wide range of environmental factors, methods of multivariate factor analysis have been used. At the first stage, the principal components analysis was applied. At the next stage, the analysis of the relationship between the eigenvalues of the main components and the index of the average life expectancy was carried out with the correlation-regression analysis. Results. The most significant indices were established to positively characterize the improvement of the quality of life in the population of the region as follows: housing security and accessibility of housing, income, marriage and fertility rates, the level of pensions, the health system’s supply of human resources. Indices mostly reflecting the negative impact of the habitat on the quality of life are: the prevalence of syphilis, alcoholism, tuberculosis; number of abortions; the score of the migration outflow of the population; levels of poverty and unemployment; the level of water pollution; the score of social environment criminality; provision of the population with a bed fund, etc. There was an increase in the quality of life in the population of the region, accompanied by an increase in the average life expectancy of men and women in 1999-2014. Discussion. The applied methodology is used in epidemiological and ecological studies by domestic and foreign authors. In studies with similar objects and subject of research, but using other methods of factor analysis, similar results were obtained. Conclusion. The main vector of changes in the quality of life in the population of the region was the strongest clear correlation with individual socio-economic and demographic indices; the strongest inverse correlation was noted with the incidence rates of socially conditioned diseases, criminality, poverty, health system resources, etc.
APPLICATION OF MATHEMATICAL PLANNING OF THE EXPERIMENT IN THE CHOOSING THE OPTIMUM CONDITIONS OF THE VAPOR-PHASE GAS-CHROMATOGRAPHIC DETERMINATION OF FORMALDEHYDE IN THE URINE
Authors: Alekseenko Аnton N. , Zhurba O. M.
Published: March 2019

Introduction. There was substantiated a method for the determination of formaldehyde by vapor-phase gas chromatography by the use of derivatizing reagent o-(2,3,4,5,6-pentafluorbenzyl)hydroxylamine. Material and methods. Formaldehyde in urine was derivatized to o-pentafluorobenzyloxime and recovered to the vapor phase by heating the urine sample with o-(2,3,4,5,6-pentafluorbenzyl)hydroxylamine in a sealed vial. Gas-chromatographic analysis of the vapor-air phase was performed in a mode of the temperature gradient on a capillary column HP-5 with a flame ionization detector. Identification of the analyte in the form of the derivative-o- pentafluorobenzyloxime of formaldehyde was carried out according to the absolute retention time, which was established by comparing the chromatograms of model formaldehyde mixtures in the urine of different concentrations. Results. The optimal conditions for gas extraction are selected using mathematical experimental planning. The most important factors of gas extraction in the vapor-phase analysis are the temperature and time of the establishment of the interphase equilibrium with heating. From the experimentally obtained curves of the analytical signal on the temperature and the heating time, the zero level and the interval of variation of these factors are chosen. A matrix for planning a 2-factor experiment was constructed. The coefficients of the mathematical model are determined. There was carried out statistical processing of the experimental data, which was reduced to the estimation of the reproducibility of the optimization parameter and to the evaluation of the significance of the coefficient of the mathematical model. The adequacy of the mathematical model was evaluated, its interpretation was carried out. Discussion. The peak area of the analyte increases with the elevating the temperature and heating time, due to an increase in the analyte concentration in the vapor phase. Moreover, the heating time makes a greater contribution to the formation of the analytical signal than the temperature. The step of motion along the gradient was calculated and the experiments of steep ascent were carried out. Conclusion. According to the results of the steep ascent experiments, the optimal conditions for the gas extraction of formaldehyde in the form of a derivative were chosen.
A SYSTEMATIC ANALYSIS OF RELATIONSHIPS BETWEEN BIOCHEMICAL INDICES IN PERSONS EXPOSED TO MERCURY
Authors: Kudaeva Irina V. , Masnavieva L. B. , Naumova O. V. , Dyakovich O. A.
Published: March 2019

Introduction. Changes in biochemical indices characterizing the state of lipid peroxidation processes - antioxidant protection and lipid metabolism are observed during the occupational contact with mercury. These changes play a certain pathogenic role in the formation of disorders in the nervous system during mercury intoxication. In this regard, the aim was to study the relationship between biochemical indices at different stages of the development of mercury intoxication to justify approaches to therapeutic and preventive measures. Material and methods. A prospective cohort examination of persons exposed to the mercury vapor with signs of disorders in the nervous system, patients with chronic mercury intoxication and working in contact with mercury more than 5 years without signs of pathology was carried out. To study the relationship of features between biochemical indices, the sum of the square of correlation relations between the indices was calculated, the ranks of the influence of the system components on other factors and their dependencies were determined. Results. The decline in the level of nitric oxide metabolites was found to be one of the initial, long-term persisting in the pathogenesis of biochemical abnormalities, formed due to the contact with mercury. The development of the nervous system pathology under the mercury influence is accompanied by a change in the ratio of pro- and anti- oxidative processes, lipid metabolism disorders have an independent pathogenic significance. The long-term period of the chronic mercury intoxication is characterized by the formation of complex relationships in the biochemical system, the presence of several closed subsystems, which include nitrogen oxide metabolites. Conclusion. Given peculiarities of systemic interactions between biochemical indices, determining the role of certain factors in the overall system, as well as the presence/absence and composition of subsystems, pathogenic approaches to the correction of metabolic disorders at various stages of the mercury intoxication formation should be different.
RAPID METHODS OF THE DETECTION OF BACTERIA OF THE GENUS CAMPYLOBACTER IN FOOD PRODUCTS
Authors: Sheveleva S. A. , Efimochkina Natalya R. , Pichugina T. V. , Bykova I. B. , Stetsenko V. V. , Markova Yu. M. , Minaeva L. P.
Published: March 2019

Introduction. Campylobacteriosis is an acute intestinal disease caused by Campylobacter spp., which manifests with symptoms of enterocolitis and gastroenteritis. The causative agents of campylobacteriosis are C. jejuni, C. coli, C. lari, C. upsaliensis, and C. helveticus. The incidence of campylobacteriosis is recorded worldwide as sporadic cases and foodborne or waterborne outbreaks. The industrialization of poultry production has led both to the acceleration of the evolution of commensal pathogens from the genus of Campylobacter, increased contamination of raw products and importance Campylobacter as foodborne pathogens. Material and methods. The main objects were raw poultry products and swabs from the environment of poultry processing enterprises. Cultural, biochemical, immunological methods, methods for the detection of the sensitivity of microorganisms to antibiotics, PCR analysis were used. Results and discussion. The methods of rapid detection of thermophilic campylobacters using combined schemes of bacteriological and molecular genetic analysis are developed. Because C. jejuni makes 85-90% of food isolates of campylobacters, for the purposes of production control the detection of thermophilic Сampylobacter with a minimum set of cultural and biochemical tests of identification is allowed. This will reduce the duration of analyses up to 3-4 days and decrease their labor-cost. The control critical points of production of poultry products in which it is necessary to control the presence of thermophilic campylobacters are indicated. These are the stages of slaughter, scalding, washing, and processing on the conveyor of carcasses, contact cooling baths, the areas of semi-finished products manufacturing and the packaging. Conclusion. The obtained results were used to develop Guidelines “Methods of rapid determination of bacteria of the genus Campylobacter in food products and evaluation of their antibiotic resistance”.
ORGANIZATION OF AN INTERREGIONAL MONITORING SYSTEM USING GIS TECHNOLOGIES BY THE EXAMPLE OF RUSSIAN FEDERATION ARCTIC ZONE
Authors: Gorbanev S. A. , Kulichenko A. N. , Fedorov Vladimir N. , Dubyansky V. M. , Novikova Yu. A. , Kovshov A. A. , Tikhonova N. A. , Shayahmetov O. H.
Published: March 2019

Development of social and hygienic monitoring (SHM) system as a means of ensuring sanitary-epidemiological wellbeing of the population of Russian Federation is one of the main activities of the Federal Service for Supervision in Protection of the Rights of Consumer and Man Wellbeing. The authors analyzed the current state of organization of SHM: lists of control points of human-environment factors and laboratory test findings; information collection techniques and systematization; procedural approaches to automation of data collection, processing and visualization.SHM is legally assigned to control measures, during which the interaction of state and municipal control bodies with legal entities and individual entrepreneurs is not required. The further SHM development is reported to be restrained by a number of organizational -technologic and financial- economic problems: analysis of sanitary-epidemiological wellbeing state among population has shown that according to SHM, interregional aspects are not taken into account; procedural approaches to the choice of control points and formation of environmental pollution indices lists, as well as the assessment procedure of social and economic efficiency of SHM, have not been properly worked out; the number of departments and experts specialized in SHM and responsible for it is decreasing, and etc. A model of interregional social-hygienic monitoring as a way of SHM improvement is suggested. Its aims include the quality increase of expert-and-analytical SHM data processing within the entire RF Arctic zone; consideration of factors affecting population health and having interregional character. Departments and Federal State Healthcare agencies named “Centers of Hygiene and Epidemiology” in various subjects of the Russian Arctic and the Federal Service for Supervision in Protection of the Rights of Consumer and Man Wellbeing research institutions will participate in the interregional SHM. A concept of GIS portal of the Russian Arctic based on geo-information system and aimed to improve SHM is developed. It can be a comprehensive electronic database of human-environment factors and population health state, as well as an effective instrument with spatial analysis function for the assessment of sanitary and epidemiological wellbeing of the population.
DETERMINATION OF ADDITIONAL HEALTH RISK DUE TO POLLUTANTS IN AMBIENT AIR DURING OPERATION OF ROAD-VEHICLES COMPLEX
Authors: Rakhmanin Yu. A. , Levanchuk A. V. , Kopytenkova Olga I. , Frolova N. M. , Sazonova A. M.
Published: March 2019

Introduction. According to the materials of the World Health Organization, air pollutants are one of the most significant factors affecting the health of the population. The main urban air pollution source is road transport. The determination of air pollutants amount during the operation of the road-vehicles complex (RVC) with suspended substances is an important procedure for monitoring the risk to human health, planning, and evaluation of measures for the protection of residential areas ambient air. The existing methodical documents and regulations do not fully regulate important aspects of air pollution monitoring and assessment by-products caused by exhaust gases of the vehicle and emissions associated with the operation of the RVC. Thus, the purpose of this study is to determine the additional population health risks due to pollutants reaching the air of residential areas during the RVC operation. Material and methods. The method of emissions measurement reaching the air during the operation of the RVC is based on existing methodical documents and regulations. To assess the pollution, the data of observations of the intensity of traffic flow in different time periods in the experimental territories are used. The calculation of pollutants amount released into the air during the operational wear of the RVC is determined separately for the tire treads, brake system, and road pavement. Results. Guided by the constructed nomogram, taking into account distribution zone of the air pollution, it is possible to determine population health risk during the RVC operation in the city based on the calculation of the hazard coefficient. Discussion. On the basis of the calculations, data on the number of pollutants reaching the air during the RVC operation (wear of tire treads, brake system, road pavement) and from vehicles of various types for 1 year are presented. The data on the pollutants quantities generating on the road on a per 1 km car run basis, reaching the ambient air for various periods of time (hours, days) with the aim of the derivation of the spatial-temporal characteristics of the pollutants. On the basis of the obtained data, approximate calculations of the number of pollutants reaching the air during the operation of the RVC from all vehicles registered by St. Petersburg traffic police at the moment and the forecast for the period 2020 were carried out. Сonclusions. The given data on the hazard coefficient calculation of suspended solids emissions of RVC allow summarizing the risk from all the compartmental RVC sources. On the basis of the distance from the road to residential buildings presented in the nomogram, it is possible to determine an additional population health risk due to pollutants reaching the air during the RVC operation using a mathematical model of dispersion.
EVALUATION OF AGE AND SENIORITY DYNAMICS OF THE RISK OF HEALTH DISTURBANCES IN MINERS OF THE ARCTIC ZONE OF RUSSIA
Authors: Syurin S. A. , Sorokin Gennadiy A.
Published: March 2019

Introduction. Despite the improvement of technologies used in mining enterprises, most miners of the Arctic zone of Russia has harmful working conditions. However, miners’ health status is affected not only by harmful production factors, but also by severe climatic conditions of the Arctic, harmful behavioral factors (e.g. smoking), and the processes of natural aging of the organism. The aim of the study was to differentiate and hygienically assess the professional and non-professional fractions of the annual increase in risk (AIR) of chronic health disorders of miners and their comparison with officially approved hazard classes of working conditions. Material and methods. The results of a targeted periodic medical examination of 700 miners of the underground apatite-nepheline and copper-nickel mines were analyzed. 301 cases out of them, according to the developed method, were included in the studies. Two age groups and four seniority groups of workers have been formed. Results. The results of the study showed the possibility of using the criterion of AIR of chronic diseases for assessing the degree of harmfulness of working conditions based on health indices for miners in the Arctic zone of Russia, Miners have professional AIR of diseases of the musculoskeletal system, digestive organs, respiratory organs and nervous system exceeding the control levels by 2.3, 7.0, 5.0 7.0 times, respectively. Conclusion. The values of professional and non- professional factors for the risk of diseases of the musculoskeletal system and respiratory organs were drawn to almost coincide, which indicates a pronounced adverse effect of environmental factors on the health of miners in the Arctic zone of the Russian Federation.
ANALYSIS OF THE STATE OF THE CURRENT ELECTROMAGNETIC SAFETY FOR CREWS OF THE ICEBREAKING FLEET VESSEL
Authors: Nikitina Valentina N. , Lyashko G. G. , Kalinina N. I.
Published: March 2019

Introduction. The article presents results of a study on the hygienic evaluation of the impact of levels of electromagnetic fields (EMF) from electrical equipment, communications and navigational aids on modern automated ice-breaking vessels to the electromagnetic safety of the crew. Material and methods. The instrumental measurement of EMF levels from power equipment, electronic equipment, computers, were conducted in places of a permanent and temporary stay of the crew watches in parked icebreakers in the port and during sea trials. The assessment of the levels of electromagnetic radiation from the antennas of radio relay stations (radar) was conducted using the forecasting parameters of the EMF. Results. Onboard computers, marine electrical, communications and radar transmitters do not create electromagnetic fields exceeding the RC in crew workplaces of ship premises. Levels of EMF SHF range generated by RADAR antennas on the open deck, also do not exceed RC. Electromagnetic fields exceeding the RC are registered at work communications transmitters VHF, MF/HF on the decks of the installation of antennas transmitting devices. Discussion. There is a relevant matter of the protection of the crew from the EMF generated by the antennas of modern radars. Evaluation of the EMF RADAR intensity is only possible on the basis of data on forecasting levels of the electromagnetic radiation. To protect the crew from the EMF generated by antennas means the marine radio and RADAR on open decks should implement measures to limit exposure time to install warning signs and placards. Conclusions. There is required the improvement of normative-methodical documents in the field of the protection of the crew from the EMF. You must create a measurement technique for recording the intensity of electromagnetic radiation from the radar. Research data can be used for the development of science-based sanitary-epidemiological requirements for electromagnetic safety of the crew.
HYGIENIC ASSESSMENT OF WORKING CONDITIONS IN RADIO-ELECTRONIC COMPONENT PRODUCTION
Authors: Kiryanova Marina N. , Markova O. L. , Ivanova E. V.
Published: March 2019

Findings on the hygienic assessment of working conditions in radio-electronic component development and production at a modern enterprise producing capacitors, microcircuits, resistors and semiconductor devices are reported. Working conditions of employees engaged in radio-electronic component development (developers, designers) and production (photolithographers, wiremen, radio-electronic component and semiconductor device assemblers, adjusters and quality control inspectors) were studied. Hygienic studies of the working environment and working process factors were carried out to assess working conditions: workplace noise and magnetic field levels, microclimatic parameters, illuminance, the air pollution by chemicals. Time studies were performed to evaluate the heaviness and intensity of the work process. As a result of our studies, the main adverse factors were identified to assess worker health risks. Working conditions in job groups engaged in radio electronic component design were evaluated as harmful of 3 class, 1 degree. Working process intensity caused by sensory and mental load was found to be the major adverse factor. Working conditions in the job group engaged in experimental and small-scale production are characterized by exposure to “low-intensity factors”. Visual strain and fixed working posture are common for such jobs as radio electronic device wireman and quality control inspector using optical equipment in their work, which rates the heaviness of their working process as harmful working conditions. Our findings are intended to be used to define main harmful factors for the health risk assessment of radio component production workers, to carry out a comprehensive occupational health risk assessment, identifying job and long-term employment duration risk groups, to develop risk management measures. Our findings can provide a scientific rationale and contribute to the development of a complex of hygienic and preventive medical measures to be introduced into the practice of health protection service.
THE EXPERIENCE OF JOINT WORK OF THE CLINIC OF OCCUPATIONAL PATHOLOGY (CENTER OF OCCUPATIONAL PATHOLOGY) AND THE DEPARTMENT OF THE SCIENTIFIC SUPPORT OF SANITARY AND EPIDEMIOLOGICAL SURVEILLANCE AND EXPERTISE TO ESTABLISH THE CONNECTION OF DISEASES WITH THE OCCUPATION
Authors: Boiko Ivan V. , Andreenko O. N. , Grebenkov S. V. , Shalukha A. S. , Fedorov V. N. , Orlova G. P.
Published: March 2019

Introduction. The sanitary and hygienic characteristics of the patient’s working conditions made in accordance with the current regulatory documents do not contain an unambiguous conclusion about the adequacy of the occupational risk’s degree for an unambiguous justification of the relation of the disease with the occupation. In this situation a search for new methods which could help to recognize the risk degree is urgent. Material and methods. As an example of a solution of this problem, two expert examinations are given: two patients, diagnosed adenocarcinoma of the lung and exogenous allergic alveolitis were observed in the Clinic of Occupational Pathology of North-West Public Health Research Center. The key aspect of this work was a refinement of the professional risk based on data specified in sanitary and hygienic characteristics of working conditions. The methods from the R 2.2.2006 - 05. “Guidance on hygienic assessment of working environment factors and working process. Criteria and classification of working conditions” were used. Discussion. The use of the described methodology was suggested in cases when it’s necessary to estimate the effect of the combination of unidirectional substances and carcinogens in low-dose rates by the long-term exposure. The participation of the occupational hygiene’s specialists in the expertise of the connection of the disease with the profession seems to be promisingly.
SANITARY AND PROTECTIVE LARIX SUKACZEWII DYL. STAND IN THE POLLUTION CONDITIONS OF THE STERLITAMAK INDUSTRIAL CENTER: STATUS AND PECULIARITIES OF ACCUMULATION OF HEAVY METAL
Authors: Giniyatullin Rafak Kh. , Kulagin A. A. , Zaitsev G. A. , Baktybaeva Z. B.
Published: March 2019

Introduction. Materials on the distribution of heavy metals in the organs of Larix sukaczewii Dyl are presented in the conditions of the pollution of the industrial center of Sterlitamak. Material and methods. Using the atomic absorption method, the content of copper, lead, and cadmium in the soil cover, needles, branches, and roots was determined in healthy and weakened larch trees. Results. Under conditions of the industrial pollution, the relative life condition of larch stands is estimated as «weakened» (LN = 74.25%), in the control zone as «healthy» (LN = 84.75%). Weakened trees with increasing metal concentrations in soils and roots show an increase in the concentration of metals in the aerial organs, and in healthy trees, it is more deposited in the roots. Discussion. The high content of heavy metals in the soil leads to a redistribution of the root-saturation of the soil with absorbing roots, which is manifested in a decrease in the biomass of the roots in the upper, most contaminated soil layers, and also negatively affects the vital state of the trees by decreasing the density of the tree crown and increasing the share of dead and dying branches on the trunks. Conclusion. Under conditions of contamination, larch is able to actively absorb and deposit a significant amount of Cu, Cd, and Pb, thereby limiting their distribution in the environment.
Teachers' Website Design Experiences and Usability Test: The Case of weebly.com
Authors: Bayraktar Duygu Mutlu , Bayram Servet
Published: March 2019

This study was conducted in order to examine the process that the teachers designed the website. For this purpose, www.weebly.com, which is used as a web site building tool, was selected and teachers were given tasks for web designing. In this process, eye and mouse movements of teachers were recorded and analyzed via eye tracking devices. Comparative Static Group Pattern was determined as the research model. The participants were divided into groups formed by random assignment as experiment (N=15) and control group (N=15). This study was carried out in the Human-Computer Interaction Laboratory. Experiments were designed differently for experiment and control groups. Before performing the tasks, an introduction video was shown to the experiment group. All participants were instructed about the tasks to complete in order and expected to perform them. Then, interview questions about the contribution of introduction videos and usability of website were asked. According to the results, weebly.com web site is very useful for building an educational web site for teachers. The group that watched the introduction video completed the tasks in a shorter time than the group who did not watch the videos. At the same time, the group who watched introduction videos before using the site was able to complete more tasks than the group that did not watch the videos. These results show that the use of introduction videos as a navigation facilitator enhances the usability. Keywords: Website design experience, teacher education, usability, eye tracking