770 research outputs found
Development of laboratory information management system
Results of the actual direction of work of Scientific Research Institute of HV on development of the program complex LIS/LIMS «Chemist - analysts» for automatization of activity of analytical laboratories are presented. Functions of the complex and methodological principles of its development are considered, comparison with foreign analogues is carried out. The model of the industrial analytical control with use of concepts of a life cycle of a laboratory, technique and test is described
Change in the state of an exploited fish population: From individual indicators to integral assessment
We adapted the approach used for the integral assessment of the status of ecosystems in order to assess population status. Classic theoretical concepts of fish population dynamics are the basis of this approach. The convolution of information about changes in several structural and functional characteristics into one integral index was performed using the analytical function of desirability. The index varied 0 to 1 and quantitatively characterizes the state of the population. This approach was tested on the example of the European grayling Thymallus thymallus (Linnaeus, 1758), inhabiting the Vym River (basin of the Northern Dvina River, North of the European part of Russia). The materials were collected during the environmental monitoring carried out by the Institute of Biology of Komi Science Centre of the Ural Branch of the Russian Academy of Sciences (IB FRC Komi SC UB RAS) in 2002, 2005–2019. The population parameters used in the calculations (relative abundance; average and maximum age of fish; the proportion of matured individuals in the 4+ age group; average specific growth rate of fish at the age of 6+; body weight of fish in the age group 6+) were characterized on the basis of the control net catches. Compared with the period 2005–2006, the value of the integral index in 2015–2018 decreased by almost two times. This indicates deterioration in the condition of the grayling group in the study area. There were no serious disturbances in the fish habitat in this area. The main hydrochemical and hydrobiological indicators have not changed significantly. The main reason for the observed changes is likely the significant increase in the impact of recreational anglers. The proposed integral index may be useful both for assessing the state of fish populations and for developing measures for the rational management of fish stocks
THE FORMS OF EDUCATIONAL COOPERATION IN SCHOOL UNDER THE CONDITIONS OF IMPLEMENTATION OF THE FEDERAL STATE EDUCATIONAL STANDARDS
The aim of the publication is to show possibilities of implementation of requirements of the federal state educational standard (FSES) for formati on of the universal educational activities (UEA) during group work at lessons at comprehensive school.Methods. Theoretical methods involve analysis, comparison and generalizationmethods; empirical method of interview.Results. The main components of learning technology in cooperation and stages of technological process of group work are presented. The features of the formation of small groups are described due to the criteria of duration of a group work and the age of pupils. The possible options for the role structure of discussion groups and ways of distribution of social roles in groups are found out. The authors show the main steps of the process of group work process and organization techniques of group work of students at different stages of the lesson that allow purposefully organize the situation of communication and reflective activities. Scientific novelty. The essence of an educational cooperation as forms of group interaction of the teacher and pupils at a lesson is considered in the context of FSES of the last generation. The emergent problems in the course of the group activities organization at school are disclosed. The authors propose their own opinion on the implementation of the basic stages of group work, which are defined as a technological lesson plan. In addition, the components of a technological lesson plan include the universal learning activities forming during groupactivities which are important for the implementation of FSES requirements.Practical significance. The proposed techniques for organizing group work of pupils at different stages of the lesson and a technological lesson plan describing the universal learning activities allow teachers to effectively use technology of cooperation in education, aimed at the formation of pupils’ communicative learning activities.Цель статьи – показать возможности реализации требований федерального государственного образовательного стандарта (ФГОС) по формированию универсальных учебных действий (УУД) в ходе групповой деятельности на уроках в общеобразовательной школе. Методология и методы исследования – теоретические методы анализа, сравнения и обобщения, а также эмпирический метод опроса. Результаты. Представлены основные компоненты технологии обучения в сотрудничестве и этапы технологического процесса групповой работы. Подробно описаны особенности формирования малых групп в зависимости от критериев длительности работы и возраста обучающихся. Определены возможные варианты ролевой структуры дискуссионных групп и способы распределения социальных ролей в них. Отобраны и продемонстрированы приемы организации групповой работы учащихся на разных стадиях урока. Выделенные приемы позволяют целенаправленно организовывать коммуникацию и рефлексивную деятельность школьников. Научная новизна. Применительно к содержанию ФГОС последнего поколения рассмотрена сущность учебного сотрудничества как формы группового взаимодействия учителя и учащихся на уроке. Вскрыты проблемы, возникающие у педагогов при организации групповой деятельности школьников. Предложен авторский метод осуществления такой работы на уроке, разработанный в виде технологической карты, компоненты которой отражают содержание действий учителя и учеников и формируемые УУД на разных этапах группового учебного сотрудничества. Практическая значимость. Даны развернутые рекомендации по освоению и внедрению в учебный процесс технологии учебного сотрудничества, на основе которой школьники приобретают универсальные коммуникативные умения и навыки
Periodization of the naturalization process of kilka (Clupeonella cultriventris) in Dneprodzerzhinsk and Kremenchug reservoirs
В двух водохранилищах Днепровского каскада выявлены периоды прохождения фаз натурализации массового вида рыб, что важно для изучения данного процесса у различных видов в разных регионах и для понимания роли чужеродных видов в их рыбном населении. Натурализация тюльки в рядом расположенных водоемах протекала по-разному. В акватории будущего Днепродзержинского водохранилища этот вид проник за два года до строительства плотины, а в Кременчугское он вселился через четыре года после его создания. Детализация начала фаз натурализации основана на анализе динамических фазовых портретов уловов тюльки исследовательским траломВ двух водохранилищах Днепровского каскада выявлены периоды прохождения фаз натурализации массового вида рыб, что важно для изучения данного процесса у различных видов в разных регионах и для понимания роли чужеродных видов в их рыбном населении. Натурализация тюльки в рядом расположенных водоемах протекала по-разному. В акватории будущего Днепродзержинского водохра- нилища этот вид проник за два года до строительства плотины, а в Кременчугское он вселился через четыре года после его создания. Детализация начала фаз натурализации основана на анализе динамических фазовых портретов уловов тюльки исследовательским тралом.Any species in new life conditions passes through several phases or stages of naturalization. Information about time of these phases is important for analysis of changes in invader population and understanding of the role of alien species in analysed water bodies. The aim of this work is to detect the time of occurrence of naturalization phases for the kilka in the Dniprodzerzhinsk and Kremenchug reservoirs. The analysed material includes the own data, archives of the Institute of Fisheries of the NAAS, commercial fishery statistics and literature sources. A dynamic phase portrait method was applied for detailing the time of beginning of different phases. It was established that kilka had been already present in the Dniprodzerzhinsk reservoir at the phase of II (reproduction) before its construction, and after 1967 it became the predominant pelagic species. As for the Kremenchug reservoir, kilka invaded that water body 4–5 years after its construction. It quickly passed phases I and II and by 1968 became abundant commercial species. Thus, it was found that kilka’s naturalization phases occurred differently in these nearby water bodies: in the future Dniprodzerzhinsk reservoir area, this species penetrated two years before impoundment; while in the Kremenchug reservoir it penetrated four years after the construction. Four to five years were needed for passing first three phases of kilka naturalization in the studied reservoirs. Faster progression of the phases I and II of its naturalization in the Kremenchug reservoir compared to the Dniprodzerzhinsk one indicates on better life conditions in the first water body at the moment of invasion. Currently, the studied kilka populations pass the phase IV of naturalization, which is characterized by fluctuation of population abundance
Myth in the structure of national consciousness
In the context of globalization processes, the problem of nations and national selfconsciousness has become one of the most widely discussed in the modern social sciences and humanities. Within the framework of globalization approaches, a nation is viewed as a transitional formation between traditional locality and planetary interdependence. According to modern theories, the model of a nation is built on the basis of Western European developmental patterns. From such viewpoint, the characterization of ethnicity is rejected, as a feature of “primitive”, “pre-political” societies as marginal groups doomed to assimilation into the existing structures. The central problem of ethnical belonging is the issue of origin, the restoration of cultural and historical memory and the construction of the “appropriate past”, which would assist in solving the problems of the present. The core of any national culture is national-ethnic self-consciousness which is the key factor in the national identity formation. It is pointed out that certain types of myths are inseparable from the ethnic identity. Today, researchers speak of the process of “remythologization”. For Russia, which has always been a multiethnic state, the problem of scientific definition of nations, ethnic groups, national and ethnic consciousness has a special practical significance. In Russia and the post-Soviet space, the activation of mythological thinking has its own specifics.Keywords: Nations, Ethnicity, National consciousness, Myth, Globalizatio
Attainment grouping in English secondary schools: A national survey of current practices
Attainment grouping is a prevalent yet controversial practice, used in most English schools and on the rise internationally, despite evidence that it is detrimental to the majority of pupils. In England, no data is routinely recorded regarding these practices, and most research on student outcomes depends on a simplistic dichotomy between pupils grouped and ungrouped by attainment. We present the findings of a survey of attainment grouping practices in English secondary schools, providing an updated picture of the profile of attainment grouping in English and mathematics for students aged 11–16. Grouping in sets is dominant for mathematics and, while variants on mixed attainment grouping are frequently used for students aged 11–14 in English, the frequency of setting increases as students progress through secondary school. Schools with disadvantaged intakes are more likely to group by attainment. We also find that grouping practices are much more complex and dynamic in enactment than is implied by much of the literature and that teachers report that many schools adapt grouping strategies to meet the perceived needs of different cohorts. We provide an updated conceptualisation of grouping practices as a continuum and discuss its implications for current and future research.Education Endowment Foundation. Gabriel Gutiérrez is supported by Associative Research Programme, grant number ANID PIA CIE160007; Education Endowment Foundation [-]; Associative Research Programme [ANID PIA CIE160007]
Electron Bernstein waves emission in the TJ-II Stellarator
Taking advantage of the electron Bernstein waves heating (EBWH) system of the
TJ-II stellarator, an electron Bernstein emission (EBE) diagnostic was
installed. Its purpose is to investigate the B-X-O radiation properties in the
zone where optimum theoretical EBW coupling is predicted. An internal movable
mirror shared by both systems allows us to collect the EBE radiation along the
same line of sight that is used for EBW heating. The theoretical EBE has been
calculated for different orientations of the internal mirror using the TRUBA
code as ray tracer. A comparison with experimental data obtained in NBI
discharges is carried out. The results provide a valuable information regarding
the experimental O-X mode conversion window expected in the EBW heating
experiments. Furthermore, the characterization of the radiation polarization
shows evidence of the underlying B-X-O conversion process.Comment: 21 pages, 14 figure
"Design of a Suspension Lever Mechanism in Biomedical Robotic System"
The article discusses the design of a suspended lever mechanism with elastic elements, which is used as a safety device in a robotic system for the rehabilitation of the lower limbs. The article analyzes the existing mechanical structures of devices for rehabilitation, identifies the problems of operation, design, and safety systems and suggests a new design of the device. The process of reverse development of a lever mechanism scheme to ensure safety during rehabilitation of the lower limbs is presented. The design of the lever mechanism consists of movable levers connected by elastic elements. The device allows you to dampen the force during active rehabilitation. The power calculation of the lever mechanism in the rehabilitation system was carried out. The article addresses the issues present in the current mechanical designs with a brief discussion on the system architecture
Energy and time resolution for a LYSO matrix prototype of the Mu2e experiment
We have measured the performances of a LYSO crystal matrix prototype tested
with electron and photon beams in the energy range 60450 MeV. This study has
been carried out to determine the achievable energy and time resolutions for
the calorimeter of the Mu2e experiment.Comment: 2 pages, 3 figures, 13th Pisa Meeting on Advanced Detector
A NEW APPROACH TO THE DOSING DEGREE OF ANTERIOR TRANSPOSITION OF THE INFERIOR OBLIQUE MUSCLE SURGERY FOR VERTICAL STRABISMUS
Introduction. Strabismus is the deviation of one eye from a common fixation point, associated with impaired of binocular vision. The eye’s position in horizontal and vertical directions looking straight determines the t ype of strabismus. Despite numerous reports of surgical interventions on the vertical action muscles, there is no a differentiated approach to the treatment of patients with this pathology. The search for the optimal methods and principles of surgical treatment of vertical strabismus caused by hyperfunction of the inferior oblique muscle, testifies to the relevance of developing new approaches to eliminate hypertropia depending on its severit y.The purpose — to develop a method of dosing the degree of anterior transposition of the inferior oblique muscle in the surgical treatment of vertical strabismus caused by hyperfunction of the inferior oblique muscle depending on severit y, and to evaluate its clinical efficacy.Patients And Methods. In the period from January 2013 to October 2015 60 children (96 eyes) aged from 3 to 17 years with a vertical strabismus caused by hyperfunction of the inferior oblique muscle were followed-up. All patients underwent a complete pre — and postoperative examinations. All patients received surgical treatment — weakening of the inferior oblique muscle through its anterior dosed transposition.Results. There were no intraoperative complications and specific complications t ypical for weakening surgeries on the inferior oblique muscle. Overcorrection wasn’t registered neither in the case of surgical treatment of large vertical angles of strabismus, no small vertical deviations. Restriction of mobilit y of the eyeballs wasn’t recorded throughout the observation period in any patient. Residual hyperfunction of the inferior oblique muscle was in 3 patients (5%). It did not exceed the value of the vertical, with the fusion and did not require additional surgical treatment.Conclusion. The technology will significantly improve the efficiency and safet y of treatment, reduce the risk of complications and the duration of surgery and anesthesia, the number of surgical treatment stages, to create optimal conditions for the rehabilitation of visual functions in children
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