544 research outputs found
A broadband radio study of the average profile and giant pulses from PSR B1821-24A
We present the results of wide-band (720-2400 MHz) study of PSR B1821-24A
(J1824-2452A, M28A), an energetic millisecond pulsar visible in radio, X-rays
and gamma-rays. In radio, the pulsar has a complex average profile which spans
>85% of the spin period and exhibits strong evolution with observing frequency.
For the first time we measure phase-resolved polarization properties and
spectral indices of radio emission throughout almost all of the on-pulse
window. We combine this knowledge with the high-energy information to compare
M28A to other known gamma-ray millisecond pulsars and to speculate that M28A's
radio emission originates in multiple regions within its magnetosphere (i.e.
both in the slot or outer gaps near the light cylinder and at lower altitudes
above the polar cap). M28A is one of the handful of pulsars which are known to
emit Giant Pulses (GPs) -- short, bright radio pulses of unknown nature. We
report a drop in the linear polarization of the average profile in both windows
of GP generation and also a `W'-shaped absorption feature (resembling a double
notch), partly overlapping with one of the GP windows. The GPs themselves have
broadband spectra consisting of multiple patches with fractional spectral width
() of about 0.07. Although our time resolution was not
sufficient to resolve the GP structure on the microsecond scale, we argue that
GPs from this pulsar most closely resemble the GPs from the main pulse of the
Crab pulsar, which consist of a series of narrowband nanoshots.Comment: 16 pages, 8 figures, accepted to Ap
“DEUTSCHE WELLE” AS A MASS MEDIA LANGUAGE FOR SPECIALIST PURPOSES: PRAGMATICS, ANALYSIS, AND TRANSLATION
Purpose: Within the framework of the translation studies, the results of research on mass media texts were presented only by individual examples in the professional literature. While, for example, literary texts have developed a variety of guidelines, strategies, and models of translation. There were almost no studies on the TV news translation. We have found only a few references to this topic in scientific works dealing with mass media texts translation in general. There is still no comprehensive analysis of the German mass media translation in Ukrainian.
Methodology: However the language for specialist purposes is a special style, which creates and presents to the viewer the news texts for television. Typically, the TV news services set their own requirements for the TV news language, but there are common rules followed by all TV news editors. The linguistic designing defines the light in which the events are presented and what opinion the recipient will form.
Result: However, in recent years the demand for mass media texts translation has significantly increased. It was influenced by the distribution of audiovisual international information channels such as Euronews, BBC, France 24, DW. Deutsche Welle TV news which is currently being translated into thirty languages of the world, including Ukrainian. To some degree the translation of Deutsche Welle TV news into Ukrainian influences the level of Ukrainian integration into the European space. Due to a well-executed translation Ukrainians can learn about current political and economic events that take place in Europe and in the world, about the latest achievements in medicine, technology, ecology, sociology, etc.
Applications: This research can be used for universities, teachers, and students.
Novelty/Originality: In this research, the model of “Deutsche Welle” as a Mass Media Language for Specialist Purposes: Pragmatics, Analysis and Translation is presented in a comprehensive and complete manner
Review of overall parameters of giant radio pulses from the Crab pulsar and B1937+21
We present a review of observed parameters of giant radio pulses, based on
the observations conducted by our group during recent years. The observations
cover a broad frequency range of about 3 octaves, concentrating between 600 and
4850 MHz. Giant pulses of both the Crab pulsar and the millisecond pulsar
B1937+21 were studied with the 70-m Tidbinbilla, the 100-m GBT, 64-m Kalyazin
and Westerbork radio telescopes. We discuss pulse energy distribution,
dependence of peak flux density from the pulse width, peculiarities of radio
spectra, and polarization properties of giant radio pulses.Comment: 3 pages, 4 figures, to be published in the Proceedings of the
conference "40 Years of Pulsars: Millisecond Pulsars, Magnetars, and More"
held on August 12-17, 2007, McGill University, Montreal, Canad
Pulsar Science with the Green Bank 43m Telescope
The 43m telescope at the NRAO site in Green Bank, WV has recently been
outfitted with a clone of the Green Bank Ultimate Pulsar Processing Instrument
(GUPPI \cite{Ransom:2009}) backend, making it very useful for a number of
pulsar related studies in frequency ranges 800-1600 MHz and 220-440 MHz. Some
of the recent science being done with it include: monitoring of the Crab
pulsar, a blind search for transient sources, pulsar searches of targets of
opportunity, and an all-sky mapping project. For the Crab monitoring project,
regular observations are searched for giant pulses (GPs), which are then
correlated with -ray photons from the \emph{Fermi} spacecraft. Data
from the all-sky mapping project are first run through a pipeline that does a
blind transient search, looking for single pulses over a DM range of 0-500
pc~cm. These projects are made possible by MIT Lincoln Labs.Comment: 2 pages, 1 figure, to appear in AIP Conference Proceedings of Pulsar
Conference 2010 "Radio Pulsars: a key to unlock the secrets of the Universe",
Sardinia, October 201
Marketing support of competitiveness of agricultural enterprises
The article examines the system of agricultural marketing with the aim of meeting the needs of consumers and achieving the competitiveness of agricultural producers in the context of determining the characteristics of agricultural activity. It is substantiated that the sustainable development of agricultural production contributes to the strengthening of the economic and social security of the state, the formation of a positive image of the country, the growth of the quality of life of the urban and rural population, the increase of export potential, the maintenance of ecological balance in rural areas, the rational use, protection and reproduction of natural resources. According to the results of the assessment of the state of agricultural production in Ukraine, a change in the assortment of agricultural products was revealed in the direction of increasing the amount of cultivation of more profitable types of crop and livestock products. It was found that agricultural products occupy a leading place in Ukrainian exports. Attention is focused on the peculiarities of agricultural production, compared to other branches of the economy, which determine the specifics of the organization of marketing at agricultural enterprises. It was revealed that marketing research in the agricultural sector is mainly carried out by intermediaries, as a result of which the largest part of the profit is concentrated in intermediary structures. The stages of the process of implementation of marketing activities at enterprises producing agricultural products are characterized. It is substantiated that for the successful conduct of competition and the introduction of niche products, it is advisable to conduct marketing research and analyze the competitiveness of agricultural enterprises in the course of financial and economic activity, which will contribute to timely decision-making regarding changes in the product range, sales markets, and the enterprise management system. It has been proven that the use of marketing tools to increase the competitiveness of agricultural enterprises is important because it will contribute to taking into account external factors of influence and internal reserves of increasing efficiency. Attention is drawn to the need to select effective methods of competition and create the basis for the identification of the enterprise, which is determined by its marketing concept
Indices of exhaled breath condensate in children with eosinophilic phenotype of bronchial asthma
Кластерний аналіз у розробленні пріоритетних напрямів інформатизації логістичних процесів у системі медичного постачання Збройних Сил України
Aim. To conduct the cluster analysis of the results of an expert survey for the development of priority directions of informatization of logistics processes in the medical supply system of the Armed Forces of Ukraine.
Materials and methods. To achieve the goal of the study, the analysis of foreign and domestic scientific sources and the current legal documents was conducted. The methods of information retrieval, systematization, content analysis and the technology of hierarchical agglomeration cluster analysis were used.
Results and discussion. By clustering the results of an expert survey on informatization of logistic processes in the medical supply system of the Armed Forces of Ukraine the distribution into seven clusters formed due to similar answers to the questionnaire was obtained. The number of clusters was determined by the dendrogram construction program without any researcher’s assumptions. The cluster analysis showed stable cluster groupings with a certain level of tightness of relations between features both within a cluster and among several clusters. This corresponds to the vision of the experts who outlined the problem on the research topic and determine the ways to solve it.
Conclusions. Based on the results of the analysis of the personal composition of each cluster, a sufficiently high level of consistency of the conclusions of experts of the medical supply system of the Armed Forces of Ukraine to the need for the introduction of informatization of logistics processes has been determined. Priority directions of informatization of logistic processes in the medical supply system of the Armed Forces of Ukraine have been developed; a decisive place in these directions belongs to the implementation of a program for automatic accounting of medical supplies in the Armed Forces of Ukraine. The need for the introduction of modern software for decision-making support in the management of flow processes of providing medical supplies and equipment of the Armed Forces of Ukraine, as well as information analytical tools for the needs of the Medical Supply Directorate of the Medical Forces Command of the Armed Forces of Ukraine has been substantiated.Цель работы заключается в кластерном анализе результатов экспертного опроса для разработки приоритетных направлений информатизации логистических процессов в системе медицинского снабжения Вооружённых Сил (ВС) Украины.
Материалы и методы. Для достижения цели исследования проведен анализ отечественной и зарубежной научной литературы, действующей нормативно-правовой базы Украины, результатов экспертного опроса. В ходе выполнения исследования использованы методы информационного поиска, систематизации, контент-анализа и метод иерархического агломеративного кластерного анализа.
Результаты и их обсуждение. Кластеризацией результатов экспертного опроса по информатизации системы медицинского снабжения ВС Украины получено распределение на семь кластеров, образованных благодаря подобным ответам на вопросы анкеты. Количество кластеров определено программой построения дендрограммы без каких-либо предположений исследователя. Кластерный анализ показал устойчивые кластерныегруппировки с определённым уровнем связи между признаками как внутри кластера, так и между несколькими кластерами, что соответствует видению экспертов, которые очертили проблему по теме исследования и определяют пути её решения.
Выводы. На основе полученных результатов анализа персонального состава каждого кластера установлен высокий уровень согласованности ответов экспертов в отношении необходимости внедрения информатизации логистических процессов в систему медицинского снабжения ВС Украины. Разработаны приоритетные направления информатизации логистических процессов в системе медицинского снабжения ВС Украины, определяющее место среди которых принадлежит внедрению программы для автоматического ведения учёта медицинского имущества в ВС Украины. Обоснована необходимость внедрения современного программного обеспечения поддержки принятия решений в управлении потоковыми процессами снабжения медицинской техникой и имуществом ВС Украины, а также информационных аналитических инструментов для нужд Управления медицинского снабжения Командования Медицинских сил ВС Украины.Мета роботи полягає у кластерному аналізі результатів експертного опитування для опрацювання пріоритетних напрямів інформатизації логістичних процесів у системі медичного постачання Збройних Сил (ЗС) України.
Матеріали та методи. Для досягнення мети дослідження проведено аналіз вітчизняної та зарубіжної наукової літератури, чинної нормативно-правової бази України, результатів експертного опитування. Під час виконання дослідження використано методи інформаційного пошуку, систематизації, контент-аналізу та метод ієрархічного агломеративного кластерного аналізу.
Результати та їх обговорення. Кластеризацією результатів експертного опитування щодо інформатизації системи медичного постачання ЗС України отримано розподіл на сім кластерів, утворених завдяки подібним відповідям на питання анкети. Кількість кластерів визначено програмою побудови дендрограми без будь-якихприпущень дослідника. Кластерний аналіз засвідчив наявність стійких кластерних угруповань з певним рівнем зв’язку між ознаками як всередині кластера, так і між декількома кластерами, що відповідає баченню експертів, які окреслили проблему з теми дослідження і визначають шляхи її розв’язання.
Висновки. На основі отриманих результатів аналізу персонального складу кожного кластера визначено високий рівень узгодженості відповідей експертів щодо необхідності впровадження інформатизації логістичних процесів у систему медичного постачання ЗС України. Розроблено пріоритетні напрями інформатизації логістичних процесів у системі медичного постачання ЗС України, визначальне місце з-поміж яких належить впровадженню програми для автоматичного обліку медичного майна в ЗС України. Обґрунтовано необхідністьвпровадження сучасного програмного забезпечення підтримки прийняття рішень в управлінні потоковими процесами постачання медичної техніки і майна ЗС України та інформаційних аналітичних інструментів для потреб Управління медичного постачання Командування Медичних сил ЗС України
Depression of administrative-territorial units of Chernivtsi oblast: social-geographical assessment
Problem Statement and Purpose. The world economy has always developed and continues to develop cyclically, which affects the economic development of individual countries and their regions. As a result of cyclical economic development, regions are formed that maintain a progressive or stagnant type of economic development, and some of them, especially during periods of economic crisis, develop a regressive type. Thus, depressed regions or their separate territories appear, the study of which aims to identify in time the territorial disparities and polarizations of different types of the social formation of administrative units and to establish the level of their depression. It should be noted that most of the available scientific achievements concern the study of the territory of Ukraine at the regional level, and not at the subregional (raion) level. Therefore, our research allows us to shed more light on the depression of administrative-territorial units of Chernivtsi oblast, which differs from other regions of Ukraine by its natural-geographical, demographic, ethnic contrast, as well as cross-border and border position, which certainly has a significant impact on depression of regions and cities of regional significance.The purpose of this study is to conduct a socio-geographical assessment of the depression of administrative-territorial units of Chernivtsi oblast, which allows us to learn about the current state of the oblast and its raions in terms of depression, as well as identify possible steps to solve this problem.Data & Methods. To study the depression of administrative-territorial units of Chernivtsi oblast, the following main types were chosen: economic, social, and demographic. For each of these blocks, the main indicators of indicators were determined, according to which a socio-geographical assessment of the level of depression in administrative regions and cities of regional significance was conducted.Having established the rating places for each administrative-territorial unit according to the selected indicators, or their relative values, it was possible to establish the average place of each unit and, accordingly, the level of depression for each of the studied blocks. It was also established the common place of administrative units in the region by all indicators and thus identified different, according to the level of depression, regions.Results. With the help of rating research, the typification of administrative-territorial units of the oblast according to the level of economic, social, demographic, and integral depression was carried out. The most depressed were the agricultural raions of the oblast – Khotyn, and Sokyriany. However, it should be noted that Khotyn raion has the same types of depression in all its components, and in Sokyriany raion the worst is the demographic situation, and the best ‒ the economic one. The lowest level of depression is characteristic of Storozhynets raion, which is explained by its favorable geographical location relative to the oblast center, which contributes to economic and social development, as well as polyethnicity, which strengthens the demographic component
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