Memristor Load Current Mirror Circuit

Simple current mirrors with semiconductor resistive loads suffer from large on-chip area, leakage currents and thermal effects. In this paper, we report the feasibility of using memristive loads as a replacement of semiconductor resistors in simplistic current mirror configuration. We report power, area and total harmonic distribution, and report the corner conditions on resistance tolerances.Comment: 4th International Conference on Advances in Computing, Communications and Informaticst, IEEE, August, 201

К вопросу об апокрифах в Хождении игумена Даниила

The abundance of apocryphal material in the text of the Pilgrimage by Daniel the Traveler has become the subject of several special studies in the past, by Ya. I. Gorozhansky, M. A. Venevitinov, P. A. Zabolotsky, V. P. Adrianova-Peretts, and M. Garzaniti. All of these studies, however, were based on the text of the First Redaction of the Pilgrimage (according to Venevitinov’s classification) and they did not consider the work’s literary history. The present study reveals the various ways in which the reproduction of apocryphal subjects appears in different redactions of the Pilgrimage (both full-text and abridged) and its later adaptations made in the 16th and 17th centuries. One of the examples is the description of Nazareth, which is accompanied by an apocryphal version of the Annunciation in the Pilgrimage. This version differs from the Bible text (Mt 1:18–25, Lk 1:26–28) in that it tells about the events directly preceding the Annunciation: the pre-Annunciation at the well, where Mary comes to draw water, and the appearance of the Archangel Gabriel to her in a cave. In the group of abridged copies of the 16th century from the Kirillo-Belozersky Monastery, this information is missing, and the only thing said about Nazareth is that “Archangel Gabriel announced to Her [Mary] there.” Thus, the complete story appearing in the full-text redactions of Daniel’s Pilgrimage  was replaced by a compact report consistent with the Bible narrative.The nature of the variant readings presented in this paper remains to be interpreted, as these variants may be later interpolations in the text made by redactors or they may represent traces of the earlier period of the history of the text. At the same time, any reconstruction of the literary history of the Pilgrimage has to take into account the peculiarities of the reproduction of apocryphal subjects in different redactions of the text.Богатство апокрифического материала, содержащегося в Хождении игумена Даниила, не раз становилось предметом специального рассмотрения. Однако существующие в этой области исследования специалистов опираются на текст Первой редакции памятника и не учитывают его литературную историю. В статье показано, как апокрифические сюжеты могут быть по-разному переданы редакциями Хождения игумена Даниила (полнотекстовыми и сокращенными) и его переделками XVI–XVII вв. Отметим, к примеру, рассказ о Назарете, описание которого в Хождении сопровождает апокрифическая версия Благовещения, где, в отличие от евангельского текста (Мф 1:18–25, Лк 1:26–28), рассказывается о пред-Благовещении у колодца, куда Мария пришла за водой, а затем о явлении ей архангела Гавриила в пещере. В группе сокращенных списков XVI в., происходящих из Кирилло-Белозерской обители, это сообщение опущено, а о Назарете сказано только, что “ту благовѣсти ей архагг(е)лъ Гавриилъ”. Таким образом, полноценное предание, читающееся в полнотекстовых редакциях Хождения игумена Даниила, оказалось вытеснено лаконичным сообщением, согласным с евангельским повествованием.Природу рассмотренных в статье разночтений еще предстоит осмыслить, т. к. они могут быть как поздней вставкой в текст, выполненной редакторами, так и отражением более раннего периода истории памятника. Однако особенности передачи апокрифических сюжетов списками Хождения игумена Даниила необходимо учитывать, реконструируя литературную историю этого произведения

The study of spectral and luminescent properties of humic acids and their impact on the photodegradation process of 2,6-bis(hydroxymethyl)-4-methylphenol

UV photolysis (KrCl excilamp, λ rad ~ 222 nm) of aqueous humic acids (HAs) samples was carried out without and in the presence of 2,6-bis(hydroxymethyl)-4-methylphenol. The samples of HAs fractions were obtained from Aldrich Chemical Co and prepared from peat of Arkhangelsk region. The presence of Aldrich humic acid in the solution has a essential effect on the processes of phenolic compound photochemical degradation under the action of light from the excilam

Health saving strategy as a factor of "society wellness"

The article deals with the problem of reducing the motor activity of a modern man, especially a young man, in connection with scientific and technological progress. The results of the presented study confirm these fears: inactive lifestyle is becoming the norm. The importance of promoting the health saving strategy as one of the factors of successful social and economic development of the society is justified.publishersversionPeer reviewe

Methane dynamics in three different Siberian water bodies under winter and summer conditions

Arctic regions and their water bodies are affected by a rapidly warming climate. Arctic lakes and small ponds are known to act as an important source of atmospheric methane. However, not much is known about other types of water bodies in permafrost regions, which include major rivers and coastal bays as a transition type between freshwater and marine environments. We monitored dissolved methane concentrations in three different water bodies (Lena River, Tiksi Bay, and Lake Golzovoye, Siberia, Russia) over a period of 2 years. Sampling was carried out under ice cover (April) and in open water (July-August). The methane oxidation (MOX) rate and the fractional turnover rate (k') in water and melted ice samples from the late winter of 2017 was determined with the radiotracer method. In the Lena River winter methane concentrations were a quarter of the summer concentrations (8 nmol L-1 vs. 31 nmol L-1), and mean winter MOX rate was low (0.023 nmol L-1 d(-1)). In contrast, Tiksi Bay winter methane concentrations were 10 times higher than in summer (103 nmol L-1 vs. 13 nmol L-1). Winter MOX rates showed a median of 0.305 nmol L-1 d(-1). In Lake Golzovoye, median methane concentrations in winter were 40 times higher than in summer (1957 nmol L-1 vs. 49 nmol L-1). However, MOX was much higher in the lake (2.95 nmol L-1 d(-1)) than in either the river or bay. The temperature had a strong influence on the MOX (Q(10) = 2.72 +/- 0.69). In summer water temperatures ranged from 7-14 degrees C and in winter from -0.7 to 1.3 degrees C. In the ice cores a median methane concentration of 9 nM was observed, with no gradient between the ice surface and the bottom layer at the ice-water interface. MOX in the (melted) ice cores was mostly below the detection limit. Comparing methane concentrations in the ice with the underlaying water column revealed methane concentration in the water column 100-1000 times higher. The winter situation seemed to favor a methane accumulation under ice, especially in the lake with a stagnant water body. While on the other hand, in the Lena River with its flowing water, no methane accumulation under ice was observed. In a changing, warming Arctic, a shorter ice cover period is predicted. With respect to our study this would imply a shortened time for methane to accumulate below the ice and a shorter time for the less efficient winter MOX. Especially for lakes, an extended time of ice-free conditions could reduce the methane flux from the Arctic water bodies

POLITICAL INSTITUTE OF THE STATE IN THE CONTEXT OF THE HISTORICAL AND TYPOLOGICAL ANALYSIS

Abstract. Article is devoted to problems of structuring state created history taking into account variety social, political, forms, various speed of a political genesis. Problems of allocation of development stages of the political organizations (statehood) taking into account uncertainty of the general units of the analysis, terms and concepts of rather various paradigms of structuring and a periodization of history are considered. It is shown that the decisive force causing transformation of all other public sectors is growth, distribution and deduction of a dominant position of the most effective in the conditions of this period of a political regime.Key words: historical, typological analysis, potestarny structures, historicism, Kondratiyev’s paradigm,political regime

Future Teachers Forming Professional Expectations in Modern Educational Conditions

The relevance of the present study lies in improving the training of future teachers, an issue of particular importance during a pandemic. The authors aim to identify the level of professional expectations of future teachers and determine the necessary conditions for them to be upgraded. Study objective: The study was focused on evaluating the level of professional expectations of future teachers (PEFT) and revealing conditions catering for its improvement. Methodology: Both theoretical and empirical methods were used in the study: based on literature review the authors compiled PEFT components (motivational, emotional, cognitive, and value-semantic) and the substantial characteristics of these components were listed. In accordance with the selected components, a questionnaire was designed to identify the actual level of professional expectations among students. The experiment results were analyzed both qualitatively and quantitatively. Experiment results: The study reveals the role of professional expectations in raising the efficiency of teachers’ professional activities. PEFT components and substantial features have been established. Recommendations are provided to elicit positive PEFT formation using the University educational environment.  The practical implications of the study: The nuances of professional expectations development among future teachers have been identified. When organizing professional education, these nuances should be considered for increased effectiveness and for greater success of graduates in their professional activities