119,969 research outputs found
COMPOSITION OF ESSENTIAL OIL OF TANACETUM VULGARE L. FROM SAMARA REGION
No full textAim - to analyze the essential oil isolated from the tansy (Tanacetum vulgare L.) flowers harvested from the spontaneous flora of Samara region. Materials and methods. The analysis was made on head flowers of Tanacetum vulgare harvested from the spontaneous flora of Samara region during the flowering stage (July), in 2016. The isolation of the essential oil was made in accordance with the Pharmacopeia of the Russian Federation XIIIth Edition. The essential oil was analyzed using a gas chromatograph coupled with mass-spectrometer apparatus. GCMS analysis was performed using an Agilent Technologies 7820F gas-chromatograph, series MSD, Agilent 5975. Results. It was determined that the major compounds of essential oil are represented by 2 isomers of thujone, eucalyptole (1,8-cineole) and yomogi-alcohol. According to the results of headspace analysis, the main identified components were artemisia alcohol, sabinene, eucalyptole (1,8-cineole). Conclusion. The knowledge of phytochemical characteristics of Tanacetum vulgare L. is important for the correct identification of the plant material for medical purposes
Studying of the history of the Samara Region from the XVI to the early XX century: a historiographical review
No full textThe purpose of the article is to summarize the intermediate historiographic results of the study of the history of the Samara Region (pre-revolutionary period). The study is based on the historiographic sources, i.e. monographs, collective works, scholarly articles, conference materials, as well as textbooks and popular science publications on the history of the Samara region. On the base of the historiographic analysis of these works, the authors distinguish several stages of studying the history of the Samara region, characterize the main trends in the development of regional history studies, and identify the changes in thematic priorities and methodological approaches to studying regional history at each of these stages. The history of studying the Samara Region is reviewed in the context of formation of historical education system and research institutions in Samara, the development of the local history movement, the appearance of periodicals on local history, and the organization of scholarly conferences on regional history. The authors prove that, at present, the development of new research methodology has allowed regional science to reach a qualitatively new level, to proceed with the creation of generalizing works and encyclopedic publications on the history of the region; a significant role in coordinating this work belongs to the historians of Samara University. Studying the history of the Samara Region has become interdisciplinary in its character; the cooperation of representatives of various humanitarian specialties, historians, and local history experts is an important condition for inspiring the readers with interest and love for the history of their homeland. In the final part of the article the authors outline possible prospects for the further development of regional history
Investigation of materials for use in high-temperature, thin-film heaters and temperature sensors
No full textThesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1997.Includes bibliographical references (p. 79-83).by Samara L. Firebaugh.M.S
Samara, patrimoine naturel !
No full textLe parc archéologique Samara propose un ensemble de manifestations pour les journées européennes du Patrimoine les 17 et 18 septembre 2016. Cette année, les journées européennes du patrimoine sont l'occasion de rencontrer celles et ceux qui œuvrent au quotidien pour préserver les espaces naturels de la Somme dont Samara fait partie : partenaires associatifs et acteurs de l'environnement. Les visites et animations proposées permettent de se réapproprier le patrimoine samarien et de découvrir l..
Samara, patrimoine naturel !
No full textLe parc archéologique Samara propose un ensemble de manifestations pour les journées européennes du Patrimoine les 17 et 18 septembre 2016. Cette année, les journées européennes du patrimoine sont l'occasion de rencontrer celles et ceux qui œuvrent au quotidien pour préserver les espaces naturels de la Somme dont Samara fait partie : partenaires associatifs et acteurs de l'environnement. Les visites et animations proposées permettent de se réapproprier le patrimoine samarien et de découvrir l..
CLINICAL AND EPIDEMIOLOGICAL CHARACTERISTICS OF HEMORRHAGIC FEVER WITH RENAL SYNDROME IN THE SAMARA REGION
No full textAim - to study clinical and epidemiological characteristics features of hemorrhagic fever with renal syndrome. Materials and methods. A retrospective comparative analysis of the results of clinical and epidemiological examination of HFRS patients was carried out in two groups: with moderate (n=106) and severe (n=22) forms of the disease, who were hospitalized in the clinic of infectious diseases of Samara State Medical University in 2017. Results. A significant predominance of the air-dust pathway of infection in severe forms of the disease was revealed. Most patients were young men in both groups. Clinical features of the current course of HFRS was the presence of subfebrile temperature in the polyuric period; absence of hemorrhagic syndrome in the majority of patients with HFRS, presence of severe asthenovegetative syndrome in the period of convalescence with severe headache, especially in severe form of the disease
Survival of Civilian and Prisoner Drug-Sensitive, Multi- and Extensive Drug- Resistant Tuberculosis Cohorts Prospectively Followed in Russia
No full textThis is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited
Iris pumila L. and the State of Its Populations in the Samara Region (Southeast of the European Part of Russia)
No full textThe current state of the coenotic populations of Iris pumila L. (Iridaceae) were studied in the southeast of the European part of Russia (Samara Region). The phytocenotic confinement and population structure of the species were assessed. I. pumila preferred growing in steppe zonal communities. In total, 118 species of vascular plants were found in the communities, where I. pumila has been registered, and of which 34 (28.8%) were included into the Red List of the Samara Region and 8 species into the Red List of the Russian Federation. In the study area, populations of I. pumila were represented by a significant number of individuals and were in a stable state. According to the “delta-omega” criterion, the populations were mature (47.0%), transitional (23.5%), maturing (17.6%), and aging (11.9%), which testified to the diversity of population structure and thus to a satisfactory state of the species in the Samara Region. The populations recovered mainly due to individuals of vegetative origin, but this process was rather slow. Under unfavorable conditions, I. pumila populations were characterized by a vegetative settled way of life. Fires, grazing, and destruction of habitats had a significant impact on the population structure and absolute abundance in the Samara Region
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
PREVALENCE OF ANXIETY AND DEPRESSION SYNDROMES IN CORRELATION WITH MAJOR RISK FACTORS FOR CHRONIC NONINFECTIOUS DISEASES AMONG PATIENTS OF THE SAMARA REGION
No full textAim - to study the prevalence of syndromes of anxiety and depression in correlation with major risk factors (RF) of chronic noninfectious diseases among patients of the Samara region considering themselves healthy. Materials and methods. A comparative population-based cross-sectional study was based on a representative selection of patients (95 people) from the Samara region (rural and urban population) at the age of 19-68 years. Results. The study revealed a significant increase in the rates of fatigue, anxiety and depression in outpatients. The syndrome of anxiety of subclinical level was detected in 35.7% of patients, clinical level - in 23.2% of patients; the syndrome of subclinical depression was revealed in 21.0% of patients, and 4.2% had the clinical level. We discovered the correlation between the syndromes of anxiety and depression and the major RF of chronic noninfectious diseases and patient’s satisfaction with quality of medical care in the clinic. High levels of anxiety were more frequent in men, at older age, and were associated with physical inactivity. Severe depression more often occurred at older age and in the presence of hypercholesterolemia. The income level of the patient correlated with the level of stress exposure, physical activity and satisfaction with the work of the policlinics. We did not reveal the relationship between the syndromes of anxiety and/or depression and the level of income, degree of hypertension, social activity, smoking, alcohol consumption, and body mass index. Conclusion. The results indicate that the presence of the syndromes of anxiety and depression increases the risk of occurrence of other independent risk factors of chronic noninfectious diseases. The identified trends can serve as the basis for targeted screening programs for diagnostics and prevention of chronic noninfectious diseases
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