scholarly journals Mineralogy and Geochemistry of Ultramafic Rocks from Rachoni Magnesite Mine, Gerakini (Chalkidiki, Northern Greece)

Minerals ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 934
Author(s):  
Evangelos Tzamos ◽  
Micol Bussolesi ◽  
Giovanni Grieco ◽  
Pietro Marescotti ◽  
Laura Crispini ◽  
...  
Keyword(s):  
Raw Materials ◽  
Mining Area ◽  
Ultramafic Rocks ◽  
Northern Greece ◽  
Icp Ms ◽  
Time In Literature ◽  
History Of ◽  
First Time ◽  
The Eu

The importance of magnesite for the EU economy and industry is very high, making the understanding of their genesis for the exploration for new deposits a priority for the raw materials scientific community. In this direction, the study of the magnesite-hosting ultramafic rocks can be proved very useful. For the present study, ultramafic rock samples were collected from the magnesite ore-hosting ophiolite of the Gerakini mining area (Chalkidiki, Greece) to investigate the consecutive alteration events of the rocks which led to the metallogenesis of the significant magnesite ores of the area. All samples were subjected to a series of analytical methods for the determination of their mineralogical and geochemical characteristics: optical microscopy, XRD, SEM, EMPA, ICP–MS/OES and CIPW normalization. The results of these analyses revealed that the ultramafic rocks of the area have not only all been subjected to serpentinization, but these rocks have also undergone carbonation, silification and clay alteration. The latter events are attributed to the circulation of CO2-rich fluids responsible for the formation of the magnesite ores and locally, the further alteration of the serpentinites into listvenites. The current mineralogy of these rocks was found to be linked to one or more alteration event that took place, thus a significant contribution to the metallo- and petrogenetic history of the Gerakini ophiolite has been made. Furthermore, for the first time in literature, Fe inclusions in olivines from Greece were reported.

Sorption of As (III) and Se (IV) from aqueous solutions for subsequent determination by total reflection X-ray fluorescence

2021 ◽  
Vol 87 (8) ◽  
pp. 19-22
Author(s):  
D. G. Filatova ◽  
A. A. Arkhipenko ◽  
M. A. Statkus ◽  
I. V. Mikheev ◽  
V. B. Baranovskaya ◽  
...  
Keyword(s):  
Raw Materials ◽  
Total Reflection ◽  
Phase Contact Time ◽  
Sorbent Phase ◽  
X Ray ◽  
Icp Ms ◽  
Subsequent Determination ◽  
Processed Products ◽  
Branched Structure

An approach to the simultaneous isolation of As (III) and Se (IV) from solutions on a new S,N-containing sorbent followed by determination of the analyte in the sorbent phase using total reflection X-ray fluorescence (TXRF) has been proposed. To match the goal, a sorbent with a branched structure was synthesized on the base of polyacrylamide modified with formaldehyde and hydrogen sulfide. This is a heteroatomic copolymer containing sulfide bridges in the chain and crosslinking by a tertiary amine. Conditions for the quantitative co-extraction of As (III) and Se (IV), i.e., sorption in solutions of 1 M HNO3 with calcium ions present, heating to 60°C and phase contact time of 1 h were determined. The mechanism of sorption interaction of the analytes under specified conditions is discussed. It is shown that a 100-fold excess of iron, zinc and copper does not interfere with the extraction of analytes, thus providing the possibility of As (III) and Se (IV) isolation from different types of raw materials and processed products using the synthesized sorbent. A method for the direct XRF quantification of arsenic and selenium with sr 0.09 and 0.08, respectively, in the sorbent phase has been developed. The correctness of the results was confirmed by the ICP-MS method in analysis of aqueous reference solution after dissolution of the sorbate in HNO3 (1:1).

scholarly journals Women's Institutes in Imperial Russia in the wording of the normative documents (1764 – early XX century): terms, typology, dates

2021 ◽  
pp. 110-129
Author(s):  
Varvara Vital'evna Ponomareva
Keyword(s):  
Normative Documents ◽  
The Past ◽  
Imperial Russia ◽  
Class Composition ◽  
History Of ◽  
The Subject ◽  
The Russian Empire ◽  
First Time ◽  
Departmental Affiliation

The subject of this research is the foundation of women’s education system in the Russian Empire, namely of the Office of the Institutions of Empress Maria, which totaled up to three dozen by the early XX century. Actualization of the knowledge about the best examples of the Russian school in the past is determined by the fundamental importance of education in the context of ongoing modernization of the country. The topic of Women's institutes of Imperial Russia, which existed for over 150 years, is poorly studied. Despite the extensive source base, in the historical literature one can often come across improper names of the institutes, determination of their departmental affiliation, class composition of the students, as well as incorrect dating and topography. Using the historical-systemic and typological analysis, the author determines and clarifies the conceptual framework of the problematic as a necessary research toolset. The author's contribution to selected topic consists in discovery of a wide variety of sources, including those introduced into the scientific discourse for the first time, accurate names of the institutes and variations in the official documents and everyday practice., their renaming and the causes. The article also traces the dynamics of changes in the class and confessional composition of students since the establishment of the institutes until the beginning of the XX century. Subordination and departmental affiliation at different stages of the history of these institutes is clarified.

scholarly journals INSTITUTE OF EMISSARIES

2021 ◽  
Vol 69 (2) ◽  
Author(s):  
M. Koigeldiev ◽  
Keyword(s):  
Power System ◽  
Management System ◽  
Raw Materials ◽  
Historical Analysis ◽  
Point Of View ◽  
Soviet Period ◽  
Administrative Management ◽  
History Of ◽  
The Republic ◽  
First Time

The 20-30 years of the XX-th century in the history of Kazakhstan are characterized by the formation of such a form of governance of the republic from the center as the institute of emissaries. This form of management remained unchanged until the end of the Soviet period. The system of administrative management has acquired a new character, consolidating the former imperial positions based on the search for sources of raw materials and sales markets. The history of the formation and activity of the Institute of emissaries as a management system in Kazakhstan was not considered as an object of historical analysis. For the first time in the Kazakh historiography in the context of the 20-30s, the author analyzes the origins of the formation of this institute of management. The article highlights the beginning of a new stage in the Kazakh history, which implies a generalization of the activities of the power system and its nature from the point of view of modern realities.

scholarly journals The Essence of the Fundamental Rights to Privacy and Data Protection: Finding the Way Through the Maze of the CJEU’s Constitutional Reasoning

2019 ◽  
Vol 20 (6) ◽  
pp. 864-883
Author(s):  
Maja Brkan
Keyword(s):  
Data Protection ◽  
Personal Data ◽  
Case Law ◽  
Fundamental Rights ◽  
Fine Tuning ◽  
Charter Of Fundamental Rights ◽  
Considerable Impact ◽  
First Time ◽  
The Eu

AbstractIn the constitutional shaping of the concept of essence of fundamental rights, the case law of the Court of Justice of the EU (“CJEU” or “the Court”) in the field of privacy and data protection plays a crucial role. The Court’s interpretation of this notion had a considerable impact not only jon perception of the essence in other fields of law, but also on the constitutional doctrine more generally. This Article focuses on specificities of the notion of essence of fundamental rights to privacy and the protection of personal data from Articles 7 and 8 of the Charter of Fundamental Rights of the EU. After a general analysis, situating this notion into the framework of multi-level protection of fundamental rights in Europe, the Article addresses further interpretative challenges relating to the essence in the Court’s case law. At the core of the analysis are the Schrems and Digital Rights Ireland cases, where the CJEU developed, for the first time, the modalities of the breach of essence of fundamental rights to privacy and data protection and laid down constitutional foundations for interpretation of this notion. Further jurisprudence, including the Tele2 Sverige and Opinion 1/15 cases, is analyzed as an example of fine-tuning of the CJEU’s approach towards the normative understanding of this concept. Against this backdrop, the Article elaborates on the importance of insights in the fields of privacy and data protection for the general constitutional understanding of the concept of essence and proposes a generalized method for determination of infringement of essence in fundamental rights jurisprudence.

How to Tame the Elusive: Lessons from the Revision of the EU Flexibility Clause

2010 ◽  
Vol 7 (2) ◽  
pp. 343-373 ◽  
Author(s):  
Viljam Engström
Keyword(s):  
European Union ◽  
The European Union ◽  
Treaty Of Lisbon ◽  
History Of ◽  
Basic Purpose ◽  
Treaty Of Rome ◽  
First Time ◽  
The Eu

AbstractThe mechanism established in what has now become Article 352 of the Treaty on the Functioning of the European Union (formerly known as Article 235 and 308) has many names. One of the more common is to refer to the mechanism as the 'flexibility clause'. As the notion indicates, the basic purpose of the mechanism is to provide the European Union with a possibility of (flexibly) adjusting legislative powers to arising needs. Since the very purpose of the flexibility clause is to provide for the exercise of legal powers where none is to be found in the EU Treaties, the clause hereby defines the ultimate reach of EU competence. Remarkably, although use of the clause has often been contentious, the wording of the clause has remained unchanged ever since the Treaty of Rome. The aim of the article is to outline the function and development of the flexibility clause especially in light of the Treaty of Lisbon, which for the first time in the history of the EC/EU rewrites the flexibility clause.

scholarly journals Novyi Mishor – first country-style resort on the South Coast of Crimea (1898-1920): reconstruction of sociocultural history

2020 ◽  
pp. 103-127
Author(s):  
Andrey Vasil'evich Karagodin ◽  
Mariya Mikhailovna Petrova
Keyword(s):  
The Body ◽  
South Coast ◽  
Russian Society ◽  
The South ◽  
Historical Sources ◽  
Starting Point ◽  
History Of ◽  
The Subject ◽  
First Time

The subject of this research is the history of the first of country-style resort appeared on the South Coast of Crimea at the turn of the XIX – XX centuries on the lands of country estates of New Mishor belonged to Shuvalov-Dolgorukov family. The phenomenon of country-style construction on the South Coast of Crimes, which starting point was the foundation of the Novyi Mishor, is viewed in the context of the processes of economic and sociocultural modernization of Russian society, formation of self-identification mechanisms of the emerging “middle class”, and new urban culture. Special attention is given to the period from 1917 to 1920, when the cultural figures left the capital and resided in the villages of Novyi Mishor. Based on examination the body of historical sources, many of which introduced to the scientific discourse for the first time, the author formed the database of villages and countryside residents of Novyi Mishor. A vast array of archival funds, reference literature, sources of personal provenance (memoirs, correspondence), and visual sources was attracted in the course of research. The novelty of consists in establishment of identities and social status of the residents of country resort of Novyi Mishor, determination of a range of sources for its further research, reconstruction of chronology of the development of this resort, details of everyday life and mentality traits of the residents, among which were the prominent figures of culture and art of Russia of that time – writers, actors, painters, scholars, and philanthropists.

scholarly journals ARTICLE 7 PROCESS AND DEMOCRATIC BACKSLIDING OF HUNGARY AND POLAND. DEMOCRACY AND THE RULE OF LAW

2020 ◽  
pp. 57-85
Author(s):  
Łukasz ZAMĘCKI ◽  
Viktor GLIED
Keyword(s):  
Rule Of Law ◽  
The Political ◽  
Eastern European ◽  
Council Of Europe ◽  
Checks And Balances ◽  
The Rule Of Law ◽  
History Of ◽  
Eastern European Countries ◽  
First Time ◽  
The Eu

This paper examines developments in Poland following the 2015 elections and in Hungary since 2010, which included the gradual destruction of democratic institutions, challenges to the rule of law, as well as to the system of checks and balances. The authors consider the Ziblatt–Levitsky model (2018) as a meaningful framework for the analysis of the way in which the power structure was reshaped and have based their research on the classification set out in this model. Our objective is to present the political changes that took place in the two Central-Eastern-European countries during the last decade that resulted in the process under Article 7 being used for the first time in the history of the EU. The paper conclusion is that the path of de-democratization of Hungary and Poland is seen from the perspective of the EU and Council of Europe, as similar one. In actions taken toward both countries, the EU concerns mostly the principle of the rule of law.

scholarly journals Political Self-Identification of Russian Military Personnel in Finland in Spring 1917

2021 ◽  
pp. 289-308
Author(s):  
E. Yu. Dubrovskaya
Keyword(s):  
Initial Period ◽  
Moral Norms ◽  
Social Transformations ◽  
Party Organizations ◽  
History Of ◽  
Russian Military ◽  
The Military ◽  
First Time

The socio-psychological characteristics of the behavior of the Russian military in Finland in the initial period of the 1917 revolution were revealed, including the formation of behavioral stereotypes, new “images of the enemy”, a change in their ideas about “friends” and “foes”, and the transformation of social and moral norms. The relevance of the study is due to the need to apply a relatively new historical and anthropological approach to the study of the role of the military factor in the history of Russia and Finland. Based on the materials of the revolutionary Helsingfors and non-capital garrisons, the process of ideological and organizational self-determination of the supporters of the Socialist-Revolutionary and Bolshevik parties is considered, information about the number and the beginning of the activities of these party organizations is systematized and analyzed. The novelty of the research is seen in the fact that addressing the problem of “Revolution and man” and studying the images of “Friends”, “Foes”, “Other” in the perception of participants and eyewitnesses of events in connection with their participation in social transformations of a revolutionary time allows for the first time to get an idea of the mentality of privates and officers — the most active part of the Russian population of Finland. The author comes to the conclusion that the role of the Russian military in the events of the spring of 1917 is much more significant than was previously assumed.

Determination of europium isotope ratios in natural waters by MC-ICP-MS

2017 ◽  
Vol 32 (5) ◽  
pp. 987-995 ◽  
Author(s):  
Gabriel Gustinelli Arantes de Carvalho ◽  
Pedro Vitoriano Oliveira ◽  
Lu Yang
Keyword(s):  
Inductively Coupled Plasma ◽  
Natural Waters ◽  
Precise Determination ◽  
Single Step ◽  
Inductively Coupled ◽  
Analytical Protocol ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
First Time

An analytical protocol for the accurate and precise determination of the europium isotope ratio in low level natural waters is presented for the first time by using multi-collector inductively coupled plasma mass spectrometry (MC-ICP-MS) with a single-step column separation with di(2-ethylhexyl) orthophosphoric acid (HDEHP) resin.

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