ДОЦІЛЬНІСТЬ ЗАСТОСУВАННЯ СТЕРИЧНО УСКЛАДНЕНИХ АЦЕНАФТЕНОВИХ СПОЛУК У СКЛАДІ ПРОТИКОРОЗІЙНОЇ КОМПОЗИЦІЇ

Technologies and Engineering ◽

10.30857/2786-5371.2021.5.3 ◽

2022 ◽

pp. 26-36

Author(s):

TATYANA DOROSHENKO ◽

NATALIYA КАCHALOVA

Keyword(s):

Dominant Role ◽

Coal Tar ◽

Coke Production ◽

Corrosion Properties ◽

Protective Composition ◽

Metal Products ◽

Inhibitory Components ◽

New Formulation ◽

Ratio Of Components

Goal. Synthesis and study of the effect of the inhibitory component – sterically complicated acenaphthene compounds – on the effectiveness of the protective composition to prevent corrosion of metal products during the period of temporary preservation.Method. Coke-chemical acenaphthylene was isolated from the absorbing and anthracene fractions of coal tar, the bromination of which led to 1,2-dibromocenaphthene. Subsequent alkylation of azine bases with 1,2-dibromacenaphthene yielded a number of sterically complex acenaphthene compounds. In the conditions of simulation aggressiveness of NSS environment the influence of synthesized additives on efficiency of anticorrosive composition is investigated (ISO 9227:2017). Research methods: chromatography, synthesis, elemental analysis, IR spectroscopy, corrosion tests.Results. On the basis of low-demand, available and inexpensive components of coke production, a number of substances with high anti-corrosion properties were synthesized – Quaternary azine salts with acenaphthene fragment. It was determined that the greatest resistance to the destructive effects of corrosive NSS environment according to the results of accelerated atmospheric corrosion tests was demonstrated by a composite coating containing an inhibitory additive – 1-(2-bromo-1,2-dihydroacenaphthylen-1-yl) quinoline bromide. The dominant role of the structure of the inhibitory additive on the manifestation of anticorrosive properties of the protective composition is shown. The influence of the ratio of components of paints and varnishes on their technological and anti-corrosion properties has been studied. The obtained results allow to create a new formulation of the domestic competitive protective composition to prevent corrosion of the metal for the period of temporary preservation.Scientific novelty. The role of 1,2-dibromacenaphthene as a promising alkylating agent in the synthesis of inhibitory additives - sterically complicated acenaphthene compounds has been determined.Practical significance. The optimal content of inhibitory components – Quaternary azine salts with acenaphthene fragment – for the development of a formulation of an effective anti-corrosion composition for the period of temporary preservation of metal products.

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Chronic Pain: Fundamental Scientific Considerations, Specifically for Legal Claims

Guides Newsletter ◽

10.1001/amaguidesnewsletters.2013.janfeb01 ◽

2013 ◽

Vol 18 (1) ◽

pp. 1-18 ◽

Cited By ~ 1

Author(s):

Robert J. Barth

Keyword(s):

Health Outcomes ◽

Pain Perception ◽

Driving Forces ◽

Psychological Treatment ◽

Dominant Role ◽

Meta Analysis ◽

General Medicine ◽

Pain Syndrome ◽

Problematic Relationship

Abstract Scientific findings have indicated that psychological and social factors are the driving forces behind most chronic benign pain presentations, especially in a claim context, and are relevant to at least three of the AMA Guides publications: AMA Guides to Evaluation of Disease and Injury Causation, AMA Guides to Work Ability and Return to Work, and AMA Guides to the Evaluation of Permanent Impairment. The author reviews and summarizes studies that have identified the dominant role of financial, psychological, and other non–general medicine factors in patients who report low back pain. For example, one meta-analysis found that compensation results in an increase in pain perception and a reduction in the ability to benefit from medical and psychological treatment. Other studies have found a correlation between the level of compensation and health outcomes (greater compensation is associated with worse outcomes), and legal systems that discourage compensation for pain produce better health outcomes. One study found that, among persons with carpal tunnel syndrome, claimants had worse outcomes than nonclaimants despite receiving more treatment; another examined the problematic relationship between complex regional pain syndrome (CRPS) and compensation and found that cases of CRPS are dominated by legal claims, a disparity that highlights the dominant role of compensation. Workers’ compensation claimants are almost never evaluated for personality disorders or mental illness. The article concludes with recommendations that evaluators can consider in individual cases.

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Faculty Opinions recommendation of Carbon cycle. The dominant role of semi-arid ecosystems in the trend and variability of the land CO₂ sink.

Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature ◽

10.3410/f.725509014.793523368 ◽

2016 ◽

Author(s):

Dennis Baldocchi

Keyword(s):

Carbon Cycle ◽

Dominant Role ◽

Arid Ecosystems ◽

Semi Arid

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НЕКОТОРЫЕ ОСОБЕННОСТИ РАСПРОСТРАНЕННОСТИ РЕСПИРАТОРНОЙ АЛЛЕРГИИ НА ЮГЕ РОССИИ

Rossiiskii Allergologicheskii ZHurnal ◽

10.36691/raj.2019.1-1.53219 ◽

2019 ◽

Author(s):

D.Sh. Macharadze

Keyword(s):

Dominant Role ◽

Pollen Allergy ◽

Respiratory Allergy ◽

House Dust Mites ◽

Dust Mites ◽

The Past ◽

Regional Features ◽

Respiratory Allergies ◽

Southern Russia

В обзорной статье приведены данные по распространенности респираторной аллергии - аллергического ринита и бронхиальной астмы на юге России, опубликованные за последние десятилетия. Показана доминирующая роль пыльцевой аллергии практически во всем южном регионе России. В Чеченской Республике у больных респираторной аллергией обнаружена сходная частота встречаемости сенсибилизации к клещам домашней пыли и пыльце злаковых трав (51,1 и 52,5 соответственно), тогда как сенсибилизация к пыльце амброзии и полыни встречалась в 3 раза реже (26,6 и 20,7 соответственно) по сравнению с соседними регионами юга России. Эти данные демонстрируют климатогеографические, экологические и другие региональные особенности в распространении респираторной аллергии.The review article presents data on the prevalence of respiratory allergy - allergic rhinitis and bronchial asthma in southern Russia, published over the past decades. The dominant role of pollen allergy is shown in almost the entire southern region of Russia. In the Chechen Republic, sensitization to house dust mites and grass pollen was found in patients with respiratory allergy equally (51.1 and 52.5, respectively), whereas ragweed and mugwort sensitization was 3 times less (26.6 and 20.7, respectively) compared with the neighboring regions of southern Russia. These data demonstrate climate-geographical, environmental and other regional features in the prevalence of respiratory allergies.

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KEGAGALAN PRIVATISASI BUMN DI ERA REZIM ORDE BARU DALAM PERSPEKTIF EKONOMI POLITIK

Wacana Publik ◽

10.37295/wp.v12i02.16 ◽

2019 ◽

Vol 12 (02) ◽

Author(s):

Syamsul Ma'arif

Keyword(s):

Market Economy ◽

Free Market ◽

Dominant Role ◽

The State ◽

Early Years ◽

New Order ◽

Free Market Economy ◽

Economic Sectors ◽

Role Of The State

After had being carried out nationalization and hostility against west countries, the New Order regime made important decision to change Indonesia economic direction from etatism system to free market economy. A set of policies were taken in order private sector could play major role in economic. However, when another economic sectors were reformed substantially, effords to reform the State Owned Enterprises had failed. The State Owned Enterprise, in fact, remained to play dominant role like early years of guided democracy era. Role of the State Owned Enterprises was more and more powerfull). The main problem of reforms finally lied on reality that vested interest of bureaucrats (civil or military) was so large that could’nt been overcome.

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Conclusion

10.1093/oso/9780198815013.003.0011 ◽

2018 ◽

Author(s):

Ildar Garipzanov

Keyword(s):

Cultural History ◽

Middle Ages ◽

Late Antiquity ◽

Western Europe ◽

Dominant Role ◽

Ninth Century ◽

Sources Of Authority ◽

History Of ◽

Historical Periods

The concluding chapter highlights how the cultural history of graphic signs of authority in late antiquity and the early Middle Ages encapsulated the profound transformation of political culture in the Mediterranean and Europe from approximately the fourth to ninth centuries. It also reflects on the transcendent sources of authority in these historical periods, and the role of graphic signs in highlighting this connection. Finally, it warns that, despite the apparent dominant role of the sign of the cross and cruciform graphic devices in providing access to transcendent protection and support in ninth-century Western Europe, some people could still employ alternative graphic signs deriving from older occult traditions in their recourse to transcendent powers.

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Multihormonal regulation of phosphoenolpyruvate carboxykinase gene transcription. The dominant role of insulin

Journal of Biological Chemistry ◽

10.1016/s0021-9258(19)83707-9 ◽

1985 ◽

Vol 260 (6) ◽

pp. 3882

Keyword(s):

Gene Transcription ◽

Phosphoenolpyruvate Carboxykinase ◽

Dominant Role ◽

Phosphoenolpyruvate Carboxykinase Gene

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Key Influencers in Public Diplomacy 2.0: A Country-Based Social Network Analysis

Social Media + Society ◽

10.1177/2056305120981053 ◽

2021 ◽

Vol 7 (1) ◽

pp. 205630512098105

Author(s):

Diana Ingenhoff ◽

Giada Calamai ◽

Efe Sevin

Keyword(s):

New Media ◽

Public Diplomacy ◽

Qualitative Content Analysis ◽

Dominant Role ◽

Opinion Leaders ◽

Centrality Measures ◽

Political Actors ◽

Step Flow ◽

Twitter Users

This article presents a study of Twitter-based communication in order to identify key influencers and to assess the role of their communication in shaping country images. The analysis is based on a 2-month dataset comprised of all tweets including hashtags of the three countries selected for this study: Austria, Switzerland, and the Netherlands. Following a two-step flow model of communication, we initially identified the influential Twitter users in all three countries based on their centrality measures. Subsequently, we carried out a qualitative content analysis of tweets posted by these influential users. Finally, we assessed the similarities and differences across the three country cases. This article offers new insights into public diplomacy 2.0 activities by discussing influence within the context of country images and demonstrating how opinion leaders can play a more dominant role than states or other political actors in creating and disseminating content related to country image. The findings also provide practical insights in the production of a country’s image and its representation on new media platforms.

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