Societal fragilities and resilience: The emergence of peoplehood in Belarus

Petrova Irina,Korosteleva Elena 한양대학교 아태지역연구센터 2021 Journal of Eurasian Studies Vol.12 No.2

The article examines societal fragilities and local resilience strategies in Belarus with a particular focus on the notion of peoplehood. Premised on the idea of evolving forms of agency under the Anthropocene, and the emergent complexity-thinking in International Relations, the article draws on these approaches to societal fragilities and community resilience to understand and explain the unprecedented levels of mobilization occurring in Belarus since the disputed presidential election in August 2020. To this end, the article zooms onto the local communities to provide an analytical perspective on the study of resilience as self-organization. In line with complexity-thinking, it argues in favor of history-specific processual identities, shaped by the aspirations of a “good life,” and realized via local support infrastructures which lie at the heart of societal resilience in Belarus. Yet, the potential of all these elements to actualize into a sweeping transformative force, referred to as “peoplehood” in this article, is rare, and comes at a time of unprecedented crises and existential threats to the life of a community. The Belarusian society seems to be undergoing such a moment that not only makes it more resilient and adaptive to change; it also transforms it into a new form of societal being, self-aware of its worth, self-organized, and self-reliant on its inner capabilities to fight for a life of excellence. The article traces these moments of becoming with, and societal being, via a critical discussion of fragilities and the elements of resilience, actualized into peoplehood.

Organ-specific lymphatic vasculature: From development to pathophysiology

Petrova, Tatiana V.,Koh, Gou Young The Rockefeller University Press 2018 The Journal of experimental medicine Vol.215 No.1

<P>Recent discoveries of novel functions and diverse origins of lymphatic vessels have drastically changed our view of lymphatic vasculature. Traditionally regarded as passive conduits for fluid and immune cells, lymphatic vessels now emerge as active, tissue-specific players in major physiological and pathophysiological processes. Lymphatic vessels show remarkable plasticity and heterogeneity, reflecting their functional specialization to control the tissue microenvironment. Moreover, alternative developmental origins of lymphatic endothelial cells in some organs may contribute to the diversity of their functions in adult tissues. This review aims to summarize the most recent findings of organotypic differentiation of lymphatic endothelial cells in terms of their distinct (patho)physiological functions in skin, lymph nodes, small intestine, brain, and eye. We discuss recent advances in our understanding of the heterogeneity of lymphatic vessels with respect to the organ-specific functional and molecular specialization of lymphatic endothelium, such as the hybrid blood-lymphatic identity of Schlemm’s canal, functions of intestinal lymphatics in dietary fat uptake, and discovery of meningeal lymphatic vasculature and perivascular brain lymphatic endothelial cells.</P>

Ponyo Fish

( Petrova Nina ) 한국기초조형학회 2019 한국기초조형학회 작품집 Vol.2019 No.2

Geochemical Model of the Distribution of Metals in the Surface Layer of the Supergene Zone (Soils )

Ludmsla Petrova 한국토양비료학회 2014 한국토양비료학회 학술발표회 초록집 Vol.2014 No.6

Antiswelling and Frost-resistant Properties of a Zeolite-modified Rubber Mechanical Seal at Low Temperature

N. N. Petrova,이정근,V. V. Portnyagina,정대용,조진호 대한화학회 2015 Bulletin of the Korean Chemical Society Vol.36 No.2

The blending of an activated zeolite with a butadiene nitrile-based rubber was investigated as a potential means of achieving mechanical seals suitable for low-temperature operation. Through this, it was discovered that zeolite addition increases the oil and frost resistance of the rubber, as well as improves the climatic stability of the elastomer in a hydrocarbon medium. These improvements are attributed to both physical and chemical interactions, with the presence of zeolite inducing strong crosslinking during vulcanization and increasing the absorption of additives such as plasticizers. Rubber modified in this way is therefore recommended for use with hydrocarbon liquids exposed to cold climates. Swelling test was conducted over 2 years in the ambient atmosphere. Zeolites induced the strong crosslinking during vulcanization of rubbers and the adsorption of plasticizers or other ingredients of rubber blends onto zeolites were also strengthened.

A new crack size prediction method using damaged beam mode shape

Dimitrina D. Kindova-Petrova 국제구조공학회 2021 Structural Engineering and Mechanics, An Int'l Jou Vol.80 No.4

There are many mode shape damage localization methods but a few of them assess damage severity. In this paper a crack size prediction method using damaged beam mode shape is presented. The beam damaged sections are modelled by massless rotational springs, whose constants are calculated by the first and the second derivate of the mode shape using numerical differentiation. The method utilizes the relationship between the rotational spring constant and the size of an open single-sided crack with uniform depth in a rectangular cross section beam. The predicted crack depths are compared with the actual data from finite element models. The results obtained demonstrate that the proposed method correctly predicts the crack size in beam structures with single or multiple damages.

Study of Polyethylene Glycol-Fluorophore Complex Formation by Fluorescence Correlation Spectroscopy

Yasaman Chehreghanianzabi,Silviya Petrova Zustiak 한국고분자학회 2016 Macromolecular Research Vol.24 No.11

Fluorescent labelling and detection has become a powerful tool in many life sciences applications. Fluorescently- tagged molecules are reliably demarcated from their surroundings allowing for the interrogation of various structural or dynamic molecular or system properties. For reliable data acquisition or to harvest the potential of noncovalent labelling, it is important that there is a good understanding of potential interactions between the fluorophore and the environment. Here, for the first time we report a complexation between Atto fluorophores and a polyethylene glycol (PEG) polymer. Atto fluorophores have long life times, high quantum yield and high sensitivity and are thus utilized in applications such as live cell imaging, spectroscopy and super resolution microscopy. PEG, on the other hand, is one of the most widely utilized polymers in many biomedical fields such as drug delivery and tissue engineering. Here, we used fluorescence correlation spectroscopy to study the specificity and the mechanism of the complexation. We determined that it was specific to the fluorophore-polymer-solvent system studied and that it was caused by a hydrogen bonding between the carboxyl group of the Atto fluorophores and the ether oxygen of PEG.

Hemorheological changes and hematometric erythrocyte characteristics in rats after sodium nitrite intoxication

Ivanov, Ivan,Gluhcheva, Yordanka,Petrova, Emilia,Antonova, Nadia 한국유변학회 2014 Korea-Australia rheology journal Vol.26 No.2

Sodium nitrite ($NaNO_2$) is a precursor to a variety of organic compounds (pharmaceuticals, dyes and pesticides), but it is best known as a food additive. The aim of the study is to investigate the influence of acute (i.p.) treatment of Wistar rats with $NaNO_2$ (at the dose of 50 mg/kg b.w.) on the blood rheological properties and erythrocyte hematometric indices (Hb, HCT, RBC, MCV, RDW, MCH, MCHC). The significant differences were not found in the whole blood viscosity (WBV) values of the control and $NaNO_2$-treated groups. The changes in the erythrocyte hematometric indices were statistically significant for RDW, MCHC and MCH at the $1^{st}$ hour, five- and ten days after $NaNO_2$ administration. Interestingly, at the day $5^{th}$ of the $NaNO_2$ treatment we obtained statistically significant lower values for the RBC count, Hb, HCT, RDW, as well as elevated indices MCV (no statistically significant), MCH, MCHC. The results obtained indicate that hemorheological and hematometric parameters examined should be monitored in cases of acute exposure to nitrites - for the purposes of clinical toxicology. The quantitative values of hematometric indices reported in our experimental model could be suitable for predicting $NaNO_2$ intoxication and methemoglobinemia in animals and humans.

Ultrasonication-Induced Changes in Physicomechanical and Tribotechnical Properties of PTFE Composites

Argunova, Anastasiia G.,Petrova, Pavlina N.,Okhlopkova, Aitalina A.,Shadrinov, Nikolay V.,Gogoleva, Olga V.,Cho, Jin-Ho Korean Chemical Society 2015 대한화학회지 Vol.59 No.3

The effect of ultrasonication on PTFE and its composites with zeolite and fluoroplast F-4NTD-2 was studied. Ultrasonication was found to cause changes in the supramolecular structure, and consequently, the tensile strength, relative elongation, and mass wear rate. Changes in the topology of the materials following ultrasonication were investigated by scanning electron microscopy. The optimum enhancement of the desired properties was found in the PTFE composite containing 2% activated zeolite.

Hemorheological changes and hematometric erythrocyte characteristics in rats after sodium nitrite intoxication

Ivan Ivanov,Yordanka Gluhcheva,Emilia Petrova,Nadia Antonova 한국유변학회 2014 Korea-Australia rheology journal Vol.26 No.2

Sodium nitrite (NaNO2) is a precursor to a variety of organic compounds (pharmaceuticals, dyes and pesticides),but it is best known as a food additive. The aim of the study is to investigate the influence of acute(i.p.) treatment of Wistar rats with NaNO2 (at the dose of 50 mg/kg b.w.) on the blood rheological propertiesand erythrocyte hematometric indices (Hb, HCT, RBC, MCV, RDW, MCH, MCHC). The significant differenceswere not found in the whole blood viscosity (WBV) values of the control and NaNO2-treatedgroups. The changes in the erythrocyte hematometric indices were statistically significant for RDW, MCHCand MCH at the 1st hour, five- and ten days after NaNO2 administration. Interestingly, at the day 5th of theNaNO2 treatment we obtained statistically significant lower values for the RBC count, Hb, HCT, RDW, aswell as elevated indices MCV (no statistically significant), MCH, MCHC. The results obtained indicate thathemorheological and hematometric parameters examined should be monitored in cases of acute exposureto nitrites - for the purposes of clinical toxicology. The quantitative values of hematometric indices reportedin our experimental model could be suitable for predicting NaNO2 intoxication and methemoglobinemia inanimals and humans.