scholarly journals Dynamics of the Regional Climatic Conditions over the Past 2000 Years on the Basis of Lithogeochemical Analysis of the Bottom Sediments of Lake Karakyol (Western Caucasus)

Author(s):  
M. Yu. Alexandrin ◽  
A. V. Darin ◽  
A. M. Grachev ◽  
O. N. Solomina

Reference section of the bottom sediments of Lake Karakyol (Caucasus) is built based on the cores obtained during the 2010 and 2014 field works, taking into account radiocarbon dating and the data of analytical microstratigraphy. Using the methods of scanning micro-XRF, solid preparations of bottom sediments were scanned in 1 mm increments with simultaneous determination of the content of more than 25 rock-forming and microelements. When building the master-core, the profiles of changes in the content of terrigenous elements were taken into account. This made it possible to precisely combine the two cores and remove from the section the sediment intervals corresponding to the “one-time” events – terrigenous material injections. Comparison of instrumental data of regional meteorological observations in the period 1927–2010 with the time series of geochemical indicators showed the presence of a stable relationship of the composition of bottom sediments with the average 11-year temperatures. Approximation of transfer functions to the depth of core testing allowed constructing a paleoclimatic reconstruction of regional temperature for the last 2 millennia with a time resolution of 5–10 years.

Ars Adriatica ◽  
2016 ◽  
pp. 253
Author(s):  
Nataša Lah

Taking into account the fact that, throughout history, certain artworks have been considered as “worth of watching” (according to the Greek etymon ἀξιοϑέατος / aksioteatos), preservation, or theorizing, while others were not, one is led to investigate the various types of evaluative descriptions. Those artworks that are more valuable than others, or simply valuable in themselves on the basis of rather specific features, have always represented the paradigmatic model for the evaluator, thus revealing the identitary nature of value as different from one epoch to another. Our aim has been to discern, with regard to this starting point, the way in which the process of evaluating artworks fits the general matrix of the universal theory of value, with its clearly distinguished levels of evaluation, beginning with value descriptions, continuing through the features of evaluation or abstract qualities of values extracted from these descriptions, and ending with value norms or systems of accepted generalizations in evaluation. Value standpoints in such an evaluation matrix represent dispositions or preferences in procedures, which reflect the norms or signifying concepts of the time. Corresponding procedures, or applications of the hierarchicized signification of artworks, are manifested in all known forms of artwork assessment: attribution, institutionalization, and setting of priorities in terms of exhibition, conservation, acquisition, restoration, and so on. Research in the history of European art-historical ideas has corroborated the hypothesis that, prior to the late 18th century, clear normative patterns were applied when it came to the evaluation of artworks. However, with the emergence of early Romanticism, this could no longer be done in the traditional way. Before the period in question, visual art was created (regardless of some stylistic discrepancies between individual authors) and classified according to well-defined thematic areas and functions. Such qualifications made it possible to distinguish clearly between major stylistic periods, creating the impression of development regardless of the later evaluative classifications of individual cycles in historical production thus understood. A comparison between the axiological matrix and the features of individual historical periods has revealed, on the one hand, a stable relationship between the functionally nomological features of artistic productions and the cultural instrumentalizations of art, and on the other a stable relationship between the overtly semantic conceptualizations in the epoch of modernism and the ostensibly structural mode of artistic expression. In the postmodern period, all that was once understood as the stylistic language of form, or the autonomy of the artefact, has been transformed in the evasive media multiplication of the postindustrial epoch into a whole series of reproductive languages, replicas, transfers, copies, or simulacra, and forced into a relationship of permanent detachment with regard to the “original” (source). Thus, instead of an artwork in context, the context itself is now presented as an artwork, structured all over again according to some of the possible principles in the theoretical choice of interpretation. The impossibility of defining precisely the boundaries of the medium, and its increasing dematerialization, have made it more difficult to apply universal evaluative criteria to a particular artwork, which has led to a conflict between cultural evaluation and the subjection of experience to the semantic functions of evaluations. Nevertheless, recent research on perception in the field of neuroscience has indicated that the sensory perception of the external world and the assignation of meaning to those perceptions indeed happen simultaneously, and that these processes cannot take place separated from one another. The conclusion shows that the modern evaluation conflicts are largely a consequence of an irreversible and entropic state of culture in the 21st century. We should therefore aim at a revision, not so much of the hitherto accepted and standardized values, but rather of the present systems of evaluation and the ensuing evaluative descriptions of art.


2020 ◽  
Vol 14 (3) ◽  
pp. 7109-7124
Author(s):  
Nasreddine Sakhri ◽  
Younes Menni ◽  
Houari Ameur ◽  
Ali J. Chamkha ◽  
Noureddine Kaid ◽  
...  

The wind catcher or wind tower is a natural ventilation technique that has been employed in the Middle East region and still until nowadays. The present paper aims to study the effect of the one-sided position of a wind catcher device against the ventilated space or building geometry and its natural ventilation performance. Four models based on the traditional design of a one-sided wind catcher are studied and compared. The study is achieved under the climatic conditions of the South-west of Algeria (arid region). The obtained results showed that the front and Takhtabush’s models were able to create the maximum pressure difference (ΔP) between the windward and leeward of the tower-house system. Internal airflow velocities increased with the increase of wind speed in all studied models. For example, at Vwind = 2 m/s, the internal flow velocities were 1.7, 1.8, 1.3, and 2.5 m/s for model 1, 2, 3, and 4, respectively. However, at Vwind = 6 m/s, the internal flow velocities were 5.6, 5.5, 2.5, and 7 m/s for model 1, 2, 3, and 4, respectively. The higher internal airflow velocities are given by Takhtabush, traditional, front and middle tower models, respectively, with a reduction rate between the tower outlet and occupied space by 72, 42, 36, and 33% for the middle tower, Takhtabush, traditional tower, and the front model tower, respectively. This reduction is due to the due to internal flow resistance. The third part of the study investigates the effect of window (exist opening) position on the opposite wall. The upper, middle and lower window positions are studied and compared. The air stagnation or recirculation zone inside the ventilated space reduced from 55% with the lower window to 46% for the middle window and reached 35% for the upper window position. The Front and Takhtabush models for the one-sided wind catcher with an upper window position are highly recommended for the wind-driven natural ventilation in residential houses that are located in arid regions.


2019 ◽  
pp. 42-44
Author(s):  
I.V. GUSAROV ◽  
V.A. OSTAPENKO ◽  
T.V. NOVIKOVА

Впервые в мире создана популяция зубров на территории 60 градусов северной широты. В новых климатических условиях разведения и сохранения зубров определены и проанализированы факторы существования вида на севере Европейской части РФ. Выявлены признаки, динамика численности, которые являются составной частью системы, предназначенной для управления биоразнообразием. Интродукция, являясь процессом введения в экосистему нехарактерных для нее видов, может усиливать изменения биоценозов как положительно, так и отрицательно. Насколько быстро и успешно проходит процесс адаптации заселенного вида, и усматривается его влияние на окружающую среду зависит дальнейшее существование зубров и в целом биоразнообразия. В статье обсуждаются вопросы взаимоотношения зубров с другими видами копытных и хозяйственной деятельностью человека, а также дальнейшим использованием зубров в сельскохозяйственном производстве. Пластичность зубров, выявление изменений и их анализ при вселении видов в новые условия обитания необходимы не только для определения развития или деградации биоценозов и в целом экосистемы, но и прогноза социально-экономических последствий интродукции как одного из методов сохранения редких и исчезающих видов фауны.For the first time in the world, a bison population has been created in an area of 60 degrees north latitude. In the new climatic conditions of breeding and preservation of bison, the factors of the species existence in the north of the European part of the Russian Federation are identified and analyzed. The signs, dynamics of abundance, which are an integral part of the system designed to manage biodiversity are identified, since the preservation of biological diversity on the planet is one of the main problems of our time. Introduction, being the process of introducing non-typical species into an ecosystem, can enhance changes in biocenoses, both positively and negatively. The question posing sounds especially when it comes to such a large hoofed animal as the European bison. How quickly and successfully the process of adaptation of the universe takes place and its environmental impact is seen depends on the continued existence of bison and biodiversity in general. The article discusses the relationship of bison with other types of ungulates and human activities, as well as the further use of bison in agricultural production. How these issues will be resolved positively depends on the future of these animals. Thus, the plasticity of bison, the identification of changes and their analysis, with the introduction of species into new habitat conditions is necessary not only to determine the development or degradation of biocenoses and the ecosystem as a whole, but also to predict the socio-economic consequences due to the introduction as one of the methods of preserving rare and endangered species of fauna.


Elenchos ◽  
2020 ◽  
Vol 41 (1) ◽  
pp. 181-194
Author(s):  
Angela Longo

AbstractThe following work features elements to ponder and an in-depth explanation taken on the Anca Vasiliu’s study about the possibilities and ways of thinking of God by a rational entity, such as the human being. This is an ever relevant topic that, however, takes place in relation to Platonic authors and texts, especially in Late Antiquity. The common thread is that the human being is a God’s creature who resembles him and who is image of. Nevertheless, this also applies within the Christian Trinity according to which, not without problems, the Son is the image of the Father. Lastly, also the relationship of the Spirit with the Father and the Son, always within the Trinity, can be considered as a relationship of similarity, but again not without critical issues between the similarity of attributes, on the one hand, and the identity of nature, on the other.


2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Feng Huang ◽  
Jianguo Lyu ◽  
Guihe Wang ◽  
Hongyan Liu

Vacuum tube dewatering method and light well point method have been widely used in engineering dewatering and foundation treatment. However, there is little research on the calculation method of unsaturated seepage under the effect of vacuum pressure which is generated by the vacuum well. In view of this, the one-dimensional (1D) steady seepage law of unsaturated soil in vacuum field has been analyzed based on Darcy’s law, basic equations, and finite difference method. First, the gravity drainage ability is analyzed. The analysis presents that much unsaturated water can not be drained off only by gravity effect because of surface tension. Second, the unsaturated vacuum seepage equations are built up in conditions of flux boundary and waterhead boundary. Finally, two examples are analyzed based on the relationship of matric suction and permeability coefficient after boundary conditions are determined. The results show that vacuum pressure will significantly enhance the drainage ability of unsaturated water by improving the hydraulic gradient of unsaturated water.


2009 ◽  
Vol 5 (3) ◽  
pp. 243-261 ◽  
Author(s):  
Melanie L. Williams

This paper was delivered as a plenary lecture, designed to respond to the one-day special conference focus upon links between socio-legal studies and the humanities.1 The paper focuses in particular upon the relationship between law and the humanities. It may be argued that the role of empirically sourced socio-legal research is well accepted, given its tangible utility in terms of producing hard data which can inform and transform policy perspectives. However, scholarly speculation about the relationship between law and the humanities ranges from the indulgent to the hostile. In particular, legal scholars aligning themselves as ‘black letter’ commentators express strong opinions about such links, suggesting that scholarship purporting to establish links between the two fields is essentially spurious, bearing in mind the purposive role of law as a problem-solving mechanism. The paper sets out to challenge such assertions, indicating the natural connections between the two fields and the philosophical necessity of continued interaction, given the fact that certain aspects of human experience and nature cannot be plumbed by doctrine or empiricism or even by combinations of the two. Law must be understood to stand at the nexus of human experience, in a relationship of integrity, where the word is understood to mean both morally principled and culturally integrated. In particular, the development of human qualities, of character and moral sensibility informing normative values – and, ultimately, engagement with the world of law – is a process of subtle cultural as well as psychological significance, and may benefit from interrogation deriving from the wider fields of human discourse.


1937 ◽  
Vol 33 (1) ◽  
pp. 84-86
Author(s):  
V. A. Petrovykh

The harsh climatic conditions of the coast of the Tatar Strait make explainable the large number of patients with frostbite who passed under our supervision during the winter of 1935-36 and amounted to 2.8% (26 people) of the total contingent of inpatients. The variety of recommended methods for treating frostbite, on the one hand, and the relatively long recovery period for all of them, on the other hand, made us take a critical approach to the proposed methods of treatment. All currently existing methods are reduced to the treatment of frostbite areas with bandages; and on the locus morbi apply indifferent or slightly disinfecting ointments, or a similar property of a powder, or wipes moistened with slightly disinfecting solutions, for example, Sol. kalii hyperm. 1: 1000. The apparent similarity of the external manifestations of frostbite and burns inspired us with the idea of ​​conducting frostbite therapy in an "open way", which has long occupied a well-deserved place in the treatment of burns.


2002 ◽  
Vol 19 (2) ◽  
pp. 264-305
Author(s):  
Beverly Stein

The question of 17th-century tonality has intrigued scholars for years: how to make sense of a repertoire in which modal concepts appear to coexist with elements of common-practice tonality. Although the system of modes and that of modern tonality are different constructions, the aspect of functional tonality that allows for the presence of major and minor keys at all 12 levels of transposition developed in part from an extension of a technique carried over from modal practice, that of transposition of mode. Nowhere is this process of tonal expansion based on the concept of transposition of mode as clear or as well structured as in the music of Giacomo Carissimi (1605-1674), the Roman composer of oratorios, cantatas, and motets whose output spans the central 40 years of the 17th century. A close examination of Carissimi's music provides us with a snapshot of the expansion of tonality via transposition and, in addition, offers important suggestions for understanding the tonal practices of contemporaries such as Monteverdi and Cavalli. In Carissimi's music, four basic tonalities are still clearly distinguishable, recognizable through unique and predictable cadence patterns. They appear at transposition levels ranging from the three-flat to the three-sharp systems, with the one-flat system conspicuous in its absence. As shown, the core of eight central keys demonstrates key pairing in a way that models the traditional authentic-plagal relationship of modes. An overview of Carissimi's tonal system demonstrates how the ap- parent coexistence of functional tonality and much older concepts of mode and hexachord can be understood to be part of a rational and organized system. This study explores Carissimi's tonal scheme through an examination of his cantatas, the repertoire displaying the widest tonal range. Based on characteristic cadence frequencies, opening transpositions, and previously unrecognized standard cadence patterns, it is possible to determine the nature of the four primary tonalities and their relationships to one another. These cadence patterns also appear as organizing principles in works of several other 17th-century composers and suggest future avenues of research. The final section summarizes the conservative and progressive features of Carissimi's tonal system, relates his practice to discussion of transposition in two popular treatises of the time, Giovanni Maria Bononcini's Musica prattico and Lorenzo Penna's Li primi albori musicali, and compares Carissimi's practice to the system of church keys (based on common transpositions of the psalm tones) prevalent in the 17th century. A study of Carissimi's cantatas thus reveals the existence of a truly distinct 17th-century tonal practice which functions on its own terms at the same time as it exhibits concepts derived from traditional modal and hexachordal theory, as well as contemporary practices of psalmody and small-scale functional tonality.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Loukas Samaras ◽  
Miguel-Angel Sicilia ◽  
Elena García-Barriocanal

Abstract Background In recent years new forms of syndromic surveillance that use data from the Internet have been proposed. These have been developed to assist the early prediction of epidemics in various cases and diseases. It has been found that these systems are accurate in monitoring and predicting outbreaks before these are observed in population and, therefore, they can be used as a complement to other methods. In this research, our aim is to examine a highly infectious disease, measles, as there is no extensive literature on forecasting measles using Internet data, Methods This research has been conducted with official data on measles for 5 years (2013–2018) from the competent authority of the European Union (European Center of Disease and Prevention - ECDC) and data obtained from Google Trends by using scripts coded in Python. We compared regression models forecasting the development of measles in the five countries. Results Results show that measles can be estimated and predicted through Google Trends in terms of time, volume and the overall spread. The combined results reveal a strong relationship of measles cases with the predicted cases (correlation coefficient R= 0.779 in two-tailed significance p< 0.01). The mean standard error was relatively low 45.2 (12.19%) for the combined results. However, major differences and deviations were observed for countries with a relatively low impact of measles, such as the United Kingdom and Spain. For these countries, alternative models were tested in an attempt to improve the results. Conclusions The estimation of measles cases from Google Trends produces acceptable results and can help predict outbreaks in a robust and sound manner, at least 2 months in advance. Python scripts can be used individually or within the framework of an integrated Internet surveillance system for tracking epidemics as the one addressed here.


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