bluuebunny/crossref_metadata_2025 huggingface dataset:
Mortality of elite football players in Portugal and spain
Authors: Simões  , Simões Onofre , Marques Inês
Published: November 2022

The health benefits of physical activity have been demonstrated. However, there is a growing debate over the potential adverse effects of strenuous physical activity, particularly at a professional level. The goal of this work is to investigate whether elite athletes live longer than general populations, by a comprehensive survival analysis of two populations of professional foot- ball players. Lifespan data of Portuguese and Spanish football players, who have represented the national teams, were collected. The mortality of each cohort is then compared to that of the respective standard population, using data available in the Human Mortality Database and four different approaches. At the end, a comparison between the mortality of Portuguese and Spanish football players is also carried out.
Tarificación analítica avanzada para cálculo de escenarios post-covid19 en los seguros de automóviles
Authors: Guillen  , Vidal-Llana Xenxo , Guillen Montserrat
Published: November 2022

La reducción de la movilidad durante la pandemia COVID19 ha supuesto una disminución de la siniestralidad en el seguro de automóviles. Las entidades necesitarán realizar escenarios de tarificación para posibles cambios en los hábitos de transporte, usando los datos del ejercicio 2020. Mostramos cómo utilizar métodos de Machine Learning (árboles de decisión y gradient boosting) para evaluar dichos escenarios y proponemos una estrategia para corregir las circunstancias de exposición al riesgo que se han dado durante la pandemia. Se concluye que es posible utilizar la información existente durante el periodo de confinamiento siempre que se puedan identificar y corregir los cambios en las carteras, viendo si el impacto es homogéneo por grupos de riesgo.
A Computational Map of the Probe CO Molecule Adsorption and Dissociation on Transition Metal Low Miller Indices Surfaces
Authors: Vázquez Parga David , Jurado Anabel , Roldan Alberto , Viñes Francesc
Published: November 2022

The adsorption and dissociation of carbon monoxide (CO) have been studied on 81 Transition Metal (TM) surfaces, with TMs having body centred cubic (bcc), face centred cubic (fcc), or hexagonal close-packed (hcp) crystalline structures. For each surface, CO, C, and O adsorptions, and C+O co-adsorptions were studied by density functional theory calculations on suited slab models, using Perdew-Burke-Ernzerhof functional with Grimme’s D3 correction for dispersive forces. CO dissociation activation and reaction energies, ΔE, were determined. The values, including zero point energy, were used to capture chemical trends along groups, d-series, and crystallographic phases concerning CO adsorption and dissociation, while simulated infrared (IR) spectroscopies and thermodynamic phase diagrams are provided. Late fcc TMs are found to adsorb CO weakly, perpendicularly, and are IR-visible, opposite to early bcc TMs, while hcp cases are distributed along these two extremes. The d-band centre, εd, is found to be the best descriptor for CO adsorptions and C+O co-adsorptions, ΔE, and activation energies. The implications of the found trends and descriptors are discussed on processes requiring CO dissociation, such as Fischer-Tropsch.
Localized surface plasmon resonance inducing cooperative Jahn–Teller effect for ultrafast crystal phase change in a nanocrystal
Authors: Sakamoto Masanori , Hada Masaki , Uesugi Fumihiko , Ota Wataru , Sato Thoru
Published: November 2022

The Jahn–Teller effect, a phase transition phenomenon involving spontaneous breakdown of symmetry in molecules and crystals, causes important physical and chemical changes that impact various fields of science, from the natural photosystem II to superconductors. In this study, we discovered that localised surface plasmon resonance (LSPR) induced the cooperative Jahn–Teller effect in covellite CuS nanocrystals (NCs), causing metastable displacive ion movements. Although light–matter interaction of plasmonic metal NCs has been widely investigated, the scope has been limited to collective mode stimulation. Electron diffraction measurements under photo illumination, ultrafast time-resolved electron diffraction analyses, and theoretical calculations of semiconductive plasmonic CuS NCs showed that metastable displacive ion movements due to the LSPR-induced cooperative Jahn–Teller effect caused a delay in the relaxation of LSPR in the microsecond region. Furthermore, the displacive ion movements caused photo-switching of conductivity in CuS NCs films used in room temperature ranges such as in transparent variable resistance infrared sensors. This study pushes the limits of plasmonics from the increase in tentative collective oscillation to metastable crystal structure manipulation, thereby expanding on Faraday's discovery.
DETERMINATION OF RACE PERFORMANCE’S FACTORS OF ARABIAN THOROUGHBRED TUNISIAN HORSES AND THE IMPACT OF INTRODUCTION OF OCCIDENTAL THOROUGHBRED HORSES INTUNISIA
Authors: Bensouf Ikram , Mhamdi Naceur , Ahmed Hatem Ouled , Lasfar Faten , Aoun Belgacem Ben , Trimeche Abdessalem
Published: November 2022

The aim of the study is to investigate the effects of age, sex, running distance and origin of horse on racing speed for Thoroughbred Arabian horse in Tunisia. Although the occidental type is known to be more successful in racing than the Tunisian type, we undertook this study to try to confirm or deny this supremacy for a sample of racehorses born in Tunisia from occidental father. A total of 333 racing records were considered for race performance. The effects of environmental factors on (sex, age, father’s origin, race distance, number of race seasons) race performance were analyzed using the least-squares method(LSM).The racehorses studied were all Arabian Thoroughbred horses in operation at the racecourse of Ksar Said from 2010 to 2020. They are 180 horses, 90 horses born of a Tunisian father, and 90 horses born in Tunisia ofthe occidentalfather. These horses are the best and most successful in their category. The study revealed that the gender and age effectswere statistically insignificant onracingperformance. Race performance was significantly influenced by the distance and the origin of the father which affirms the improving role of the occidentalhorse in the Tunisian population.
RESPONSES OF CORN SILAGE TO SOWING PATTERN UNDER SUBSURFACE DRIP IRRIGATION IN A SANDY SOIL
Authors: Hassane Sidikou Abdel Aziz , Drissi Saad , Bouaziz Ahmed , Bamouh Ahmed , Dhassi Khalid , El-Mejjaouy Yousra , El Hajli Hicham , Houssa Abdelhadi Ait
Published: November 2022

The subsurface drip irrigation technique is introduced in many agricultural areas of Morocco, particularly in the forage production systems. This study aims to determine the optimal sowing pattern of forage corn equipped with a subsurface drip irrigation system. A field experiment was carried out on sandy soil. Five rows spacing were evaluated: 40 cm, 55 cm, 70 cm, 85 cm, and 100 cm. The sowing rate was around 120000 plants ha-1. The subsurface irrigation system consisted of drip lines buried at 30 cm and separated by 100 cm with 1 L h-1 emitters and 50 cm as emitters spacing. The results revealed that the fraction of PARi and the accumulated PARi were not influenced by the sowing pattern. The highest corn dry biomass was recorded at 40 cm, 70 cm, and 85 cm row spacing. The biomass increase was mainly attributed to grain yield. The lowest irrigation water use efficiency was recorded at 100 cm row spacing (4.3 kg m-3). Concerning the forage quality, the sowing pattern did not influence the net energy for lactation and other forage quality parameters.
ALPHA-MANGOSTIN QUALITY AND QUANTITY ANALYSIS IN NAKHON SI THAMMARAT MANGOSTEEN PERICARP USING THIN-LAYER CHROMATOGRAPHY
Authors: Sintupachee Siriluk , Rattanachoo Puttisan , Promproa Suppawan
Published: November 2022

TLC (thin-layer chromatography) is a standard technique for simultaneously screening and monitoring chemical character in a large number of samples. The goal of this study was to explore if alpha-mangostin (a common secondary metabolite) could be detected in mangosteen pericarp phytochemical fingerprints and how much of it could be represented using a standard calibration curve. The antioxidant activity has been touted as a primary active ingredient in many commercial goods, including cosmetics and food supplements. To test for the antioxidant reaction to the DPPH onto the TLC plate, mangosteen pericarps were obtained from 12 orchards that were grown without pesticides in Cha-Uat (CU), Lan Saka (LS), and Phrom Khiri (PK) districts of Nakhon Si Thammarat. The samples were dried and powdered before being extracted with methanol using the reflux technique. After that, the TLC was utilized to determine the phytochemical fingerprint. The quality of phytochemicals from the LS orchards was found to differ from CU and PK samples, with different bands of compounds at RF 0.2, 0.25, and 0.57. The average amount of alpha-mangostin in the 12 samples was not statistically different, according to a one-way analysis of variance with a p-value of 0.05. The average range of interest (ROI) intensity area of the antioxidant was investigated using a one-way analysis of variance with a p-value of 0.05 and repeated comparisons across the sample groups by Tukeys multiple comparison test. The average antioxidant reaction between the CU and PS group and the CU and PK group was significantly different.
SPECIES IDENTIFICATION OF ECONOMIC IMPORTANT ADULT FRUIT FLIES BASED ON DNA BARCODING (MT DNA COI) AND LARVAE BASED ON SPECIES SPECIFIC PRIMERS FROM CENTRAL AND SOUTH PARTS OF BANGLADESH
Authors: Afroz Sultana , Noman Md Shibly , Zhang Yue , Ali Md Yousuf , Mahmud Md Rubel , Li Zhihong
Published: November 2022

Bangladesh is an agro-based country. Several vegetables and fruits contribute greatly to the national economy. Fruit fly species (Diptera: Tephritidae) have been a serious threat to agriculture in Bangladesh as well as worldwide. Morphological identification sometimes creates misidentification in adult stages, while in eggs, larvae and pupal stages are totally difficult. Nowadays, molecular identification based on DNA barcoding is an effective and rapid identification tool. However, this technique is very limited use in Bangladesh. In this study, adult samples were collected (trapping with ME and CUE) from three different geographic locations (Dhaka, Chittagong and Barisal) of Bangladesh. Adult flies were identified based on DNA barcoding (amplify the sequences with COI gene), and larvae were identified based on species-specific primers. Bactrocera dorsalis (Hendel), Zeugodacus tau (Walker) and Zeugodacus cucurbitae (Coquillett) were identified adult species found in all the locations, whereas B. dorsalis was found in a higher number. In case of host fly identification on the basis of larvae, B. dorsalis was identified from guava in three locations, indicating guava fruit is the suitable host in Bangladesh. Proper management should be taken to control these pest species; otherwise, they will become a great threat to the agriculture of Bangladesh.
SURVIVAL AND MORPHOMETRICS OF THE BLACK SOLDIER FLY, Hermetia illucens (DIPTERA: STRATIOMYIDAE) REARED ON COMMON MARKET FOOD WASTES IN NIGERIA
Authors: Ojumoola Olusegun Adebayo , Owa Ayokanmi Samson , Akin-Boaz Oluwatobi Samuel , Adeagbo Ridwan Adetomiwa
Published: November 2022

Purpose: This study investigated the suitability of nine common market food wastes in Nigeria for rearing Hermetia illucens. Methods: Substrate suitability was determined through periodic assessment for survival, and measurement of body length, width and weight of H. illucens on each substrate in the laboratory. Results: Survival of H. illucens larvae and pre-pupae on maize flour, cowpea flour, over-ripe banana peels, amaranth leaves, watermelon peels, and bread was comparable to the control substrate (chicken feed). In contrast, survival of larvae to pre-pupae on cabbage and pineapple flesh was significantly lower than on the control. Generally, larvae and adults reared on chicken feed had significantly higher body size and weight compared to those on pineapple flesh or pineapple peels. Conclusion: Due to their inherently high moisture, low protein and low carbohydrate contents, pineapple flesh and pineapple peels are the least suitable substrates for H. illucens survival and growth in the study.
Comparative analysis of geochemical signatures for sources of Cenozoic sedimentary deposits laterally to South Baikal
Authors:   Irkutsk State University, Hamud A. Al ,   Alfurat Universit, Rasskazov S.V. ,   Irkutsk State University,   Institute of the Earth's Crust SB RAS, Chuvashova I.S. ,   Irkutsk State University,   Institute of the Earth's Crust SB RAS, Yasnygina T.A. ,   Institute of the Earth's Crust SB RAS, Hassan A. ,   Irkutsk State University,   Institute of the Earth's Crust SB RAS,   Al Bass University
Published: November 2022

Geochemical signatures of Oligocene and Miocene sedimentary deposits from the Khoygot Paleovalley of Vitim Plateau changed successively over time that reflected change in sources of terrigenic material in the context of the migratory nature of the development of the river network. Geochemical signatures of Eocene-Miocene sedimentary deposits from the eastern (Mishikha-Klyuevka) and western (Osinovka) paleovalleys of the Tankhoy tectonic step of South Baikal were uniform that indicates long-term intake of sedimentary material from a common source. Composition of sedimentary material from paleovalleys of the Tankhoy step was controlled by a limited catchment. After the early Pliocene structural reorganization, geochemical signatures of sedimentary deposits from the eastern part of the Tankhoy tectonic step became similar to those of the Pliocene-Quaternary alluvium frpm the Proto-Manzurka valley of the opposite (north-western) coast of Lake Baikal. It is assumed that the common source of Pliocene-Quaternary sedimentary material was located in Jurassic (Pra-Manzurka) and Upper Jurassic-Lower Cretaceous (eastern part of the Tankhoy tectonic step) sedimentary rocks, disintegrated and eroded on the uplifts of the Primorsky and Khamar-Daban ranges.
Underwater volcanic eruptions at the beginning of formation Lakes Baikal and Khubsugul
Authors:   Irkutsk State University, Shoidonov Ch. , Rasskazov S. V. ,   Irkutsk State University,   Institute of the Earth's Crust SB RAS
Published: November 2022

Terrestrial volcanism was widely distributed in the Tunka Valley of the Baikal Rift Zone. Underwater eruptions were characteristic only of the areas of connection of the eastern and western ends of the valley, respectively, with basins of lakes Baikal and Khubsugul. The Kultuk volcano erupted in underwater conditions in the early Miocene, about 18 Ma and the Hulugaisha and Gorkhonka ones – in the middle of the Miocene, about 15–14 Ma. Underwater volcanic eruptions, along with the accumulation of fine-grained sediments show existence in the early and middle Miocene of water reserviors that could belong to lakes Baikal and Khubsugul that were formed at that time.
Stone glaciers of the Munku-Sardyk mountain range
Authors:   Irkutsk State University, Kovalenko S.N. , Akulova Yu.V. ,   Irkutsk State University
Published: November 2022

From field research and analysis of space images, we describe the most spectacular and widespread glacial patterns of the Munku-Sardyk (Eastern Sayan) area, stone glaciers, provide space images, give their quantitative and qualitative characteristics. These data can be used to assess modern glaciation and calculate the volume of cold reserves of the Munku-Sardyk mountain range.
History of discovery of the Botogol graphite deposit. Myths and facts
Authors:   Irkutsk State University, Snopkov S.V. , Khobta A.V. ,   Museum of the History of the All-Russian Railways, Bogdanova I.A. ,   Irkutsk State University
Published: November 2022

The Botogol graphite mine, located in the Oka district of the Republic of Buryatia, was one of the first mining enterprises of the Baikal region. History of the discovery and development of the Botogol graphite deposit has not only many "white spots", but also widespread myths. The article provides data on discovery and initial stage of development of a high-quality graphite deposit.
Expeditions of the Portulan Club to the Munku-Sardyk area in 2017
Authors:   Irkutsk State University, Kovalenko S.N. ,   Pedagogical Institute of the Irkutsk State University, Kitov A.D. ,   Institute of Geography named after V.B. Sochava SB RAS, Serebryakov E.V. ,   Institute of the Earth's Crust SB RAS, Afonkin A.M. ,   Institute of the Earth's Crust SB RAS, Ivanov E.N. ,   Institute of Geography named after V.B. Sochava SB RAS
Published: November 2022

The results of the expeditions of 2017 of students and teachers of the "Portulan" club together with the staff of the Institute of Geography of the Siberian Branch of the Russian Academy of Sciences and the Institute of the Earth's Crust of the Russian Academy of Sciences to the area of Munku-Sardyk mount are presented, within the framework of which field scientific studies of nival-glacial formations, river and sloped aufeis, sloped landforms and their processes forming along the valleys of the White Irkut, Bugovek, Muguvek rivers: regime surveys of high-altitude aufeis, georadar studies of the Peretolchin glacier. For the first time, a study of the last "white spot" was carried out – the open part of the Radde glacier, with a description of its structure and GPS-metering of the boundaries, as well as traditional weather monitoring, the study of the active stone stream and the Big Muguvek aufeis.
Computer modeling of physicochemical processes of oil formation
Authors:   Irkutsk State University, Isaev V.P. , Tetiali Y.B. ,   Irkutsk State University
Published: November 2022

A multicomponent heterogeneous system was modeled. As a carbon-containing component, the average composition of sapropel organic matter of the Mesozoic deposits of the West Siberian NGP (according to I.I. Nesterov) was introduced into the multisystem. Solid phases of the multisystem are represented by minerals of sandstones, clay rocks, and limestones.
Assessment of cadets'leadership qualities
Authors: Babych А. , Yandola K.
Published: November 2022

The essence of leadership qualities of cadets is considered in the article, the necessity and importance of their formation during higher military education are emphasizes. The analysis of the scientific literature showed disagreements both in the interpretation of the essence of the concept of "leadership qualities" and in the list of the most important leadership qualities. The authors came to the conclusion that nowdays due to a number of objective factors the leadership qualities of cadets should be considered as an important component of hard-skills.The processes of formation and development of leadership qualities must be comprehensive and systematic. An obligatory component is the availability of an objective system for assessing the level of manifestation and dynamics of leadership qualities. In the modern literature there are a number of psychological tests and complex methods of assessment of leadership qualities. However, the authors are convinced that in each case (meaning the specialty and specialization) changes as the list of the most important leadership qualities as the methods and procedures for their evaluation. The results of a sociological survey conducted to form a list of leadership qualities of future specialists in the structures of moral and psychological support of the AFU are presented. The authors developed and conducted training aimed at the formation of certain qualities. The training involves the use of various methods to assess the level of emergence of leadership qualities. The results of the training allowed to make a comparative analysis of such assessment methods as: psychological tests, sociomeria, case-study, expert assessment. The results of pedagogical observation of cadets during the training confirmed the fact that the methods of assessing leadership qualities cannot be the same in different conditions. However, it is possible to create a system of comprehensive assessment of leadership qualities of cadets, based on qualimetric models. The authors present a fragment for constructing a basic qualimetric model.
Immersion in a foreign environment as an effective way of development of communicative competence in the process of learning foreign languages
Authors: Nalyvaiko О. , Nuralieva L. , Syvolotska L.
Published: November 2022

The article considers the characteristics and analysis of the influence of a foreign language environment on a person in the process of learning foreign languages. The relevance of this research is connected to the fact that in recent years immersion in a foreign language environment has become increasingly popular all over the world due to the development of information and communication technologies. The article highlighted such concepts as "immersion in a foreign language environment", "sociocultural approach", "psychological aspects", "sociocultural adaptation", "language barrier", and also considered the effectiveness of immersion in a foreign language environment as a way of developing communicative competence. This article highlights the results of interviewing participants who at different time intervals and under different circumstances were in a foreign language environment and they had to answer ten questions regarding their experience, inner experiences and psychological difficulties that they encountered being in a foreign language environment. The respondents shared their impressions and expressed their view on the effectiveness of immersion in a foreign language environment as a way of developing communicative competence. Based on the results of the interviewing, the authors of the research highlighted important points that should be paid attention to and analyzed in detail.
Kesejahteraan Subjektif dan Burnout pada Perawat Ruang Isolasi Rumah Sakit selama Masa Pandemi COVID-19
Authors: Morel Edward Jonathan , Kusumiati Ratriana Yuliastuti Endang
Published: November 2022

Abstract

This study aims to uncover the relationship between subjective well-being and burnout in nurses working in the COVID-19 isolation room of dr. Doris Sylvanus Hospital. This research is quantitative research by examining the relationship between two variables or correlational. The sample in this study was 53 nurses who worked in the COVID-19 isolation room and was taken with total sampling techniques. The data collection technique consists of three psychological scales that measure burnout, namely MBI-HSS and two separate scales that measure subjective well-being such as SWLS and SPANE. Pearson's correlation test results show r = -0.620 (p < 0.05), which means that there is a significant negative relationship between subjective well-being and burnout, where the higher subjective well-being the lower the burnout in nurses working in the COVID-19 isolation room, and vice versa. An effective contribution of subjective well-being 38.5% affected burnout and 61.5% was the effect of other variables.

Abstrak

Penelitian ini bertujuan untuk mengungkap hubungan antara subjective well-being dengan burnout pada perawat yang bekerja pada ruang isolasi COVID-19 RSUD dr. Doris Sylvanus. Penelitian ini merupakan penelitian kuantitatif dengan menguji hubungan di antara dua variabel atau korelasional. Sampel dalam penelitian ini merupakan 53 perawat yang bekerja pada ruang isolasi COVID-19 serta diambil dengan teknik sampling total. Teknik pengumpulan data terdiri dari tiga skala psikologi yang mengukur burnout yaitu MBI-HSS serta dua skala terpisah yang mengukur subjective well-being seperti SWLS dan SPANE. Hasil uji korelasi pearson menunjukan r = -0,620 (p < 0,05), yang memiliki arti bahwa terdapat hubungan negatif yang signifikan antara subjective well-being dengan burnout, dimana semakin tinggi subjective well-being maka semakin rendah burnout pada perawat yang bekerja pada ruang isolasi COVID-19, begitu pula dengan sebaliknya. Sumbangan efektif subjective well-being sebesar 38,5% memengaruhi burnout serta 61,5% merupakan pengaruh dari variabel-variabel lain.
Edukasi Literasi Digital untuk Meningkatkan Self Regulated Learning pada Mahasiswa
Authors: Sestiani Rida Ayu , Septiana Amida Cindy , Putri Setiawan Xena Puspita , Muhid Abdul
Published: November 2022

Self regulated learning adalah kemampuan individu untuk secara aktif menetapkan tujuan, mengawasi, mengatur, dan mengontrol strategi berpikir, motivasi, serta perilaku yang dimiliki agar sesuai dengan tujuan dan konteks belajar selama proses pembelajaran. Pentingnya SRL dalam proses pembelajaran dapat membantu mahasiswa membangun kebiasaan belajar yang lebih baik dan meningkatkan kemampuan belajar mereka untuk menilai kemajuan akademiknya. Kemampuan dalam mengatur pembelajarannya dengan banyaknya informasi di internet membutuhkan skill khusus untuk memilah informasi dengan membutuhkan literasi digital. Dengan adanya literasi digital dapat berguna untuk meningkatkan kemampuan menggunakan self regulated learning mahasiswa dalam bidang teknologi digital, seperti membuat konten digital, dan internet secara sehat serta memberikan pengetahuan dalam membangun kesadaran mahasiswa untuk mengoptimalkan penggunaan teknologi untuk kegiatan yang produktif dan edukatif
Bank operational training to improve the competence of teachers of Islamic banking expertise
Authors: Trisanty Aidha , Feriyanto Nur , Wijayanti Diana , Aiyubbi Dityawarman El
Published: November 2022

The development of sharia banking in Indonesia makes the need for competent human resources continues to increase. It is an opportunity for vocational high schools (SMK) to produce graduates with sharia banking competencies, such as SMK Muhammadiyah Dukun in Magelang. However, the relatively new sharia banking department is one of the obstacles to producing competent graduates. SMK has problems in the competence of teachers and learning facilities. This service carries out several activities to deal with these problems, organizing basic training in sharia banking, carrying out practical field activities (in collaboration with practitioners and the sharia finance industry), internships in sharia financial institutions, create modules for teaching materials for the teaching and learning process) and assist in solving competency test case questions. The output of this activity is the availability of modules and certified teachers by the National Professional Certification Agency (BNSP), which are indicators of mastery of related competencies.
Influence of Earthquake Parameters on the Bi-directional Behavior of Base Isolation Systems
Authors: Abed Dana , Al Thawabteh Jafar , Alzubi Yazan , Assbeihat Jamal , Al-Sahawneh Eid
Published: November 2022

The introduction and development of the base isolation systems, especially the friction isolator device, were done recently to improve the capacity of adaptive behavior. The efficiency of multi-phase friction pendulums comes from their complexity, which helps reduce the structural responses and enhance structures' energy dissipation under lateral loads. Nevertheless, the influence of various earthquakes' properties on the behavior of base-isolation systems subjected to bi-directional seismic loading is still unclear. Hence, further research and studies regarding the behavior and capability of these systems under bi-directional loading are still necessary before incorporating this device in real-life practical applications. Therefore, this paper is intended to investigate the bi-directional behavior of the friction isolator subjected to various ground motion records. In order to do so, different versions of the friction pendulum system are selected and compared within the study context. Generally, the study's results have shown that the behavior of the friction isolator is highly dependent on low values of the PGA/PGV ratio. Besides, pulse-like earthquakes considerably impact the response of the isolator compared to non-pulse-like ones. Doi: 10.28991/CEJ-2022-08-10-02 Full Text: PDF
EFFECT OF COBALT FERRITE MAGNETIC NANOPARTICLES IN HYDROPHILIC COATING ON THE CONDUCTIVITY OF BILAYER LIPID MEMBRANES
Authors: Borisova E. , Kozhemova B. , Konstantinov O. , Korepanova E. , Mikheev V. , Mikhnich A. , Sukhova V. , Astanina P. , Koplak O. , Anosov A.
Published: November 2022

Magnetic nanoparticles are widely used in medical applications, for example, as contrast agents for magnetic resonance imaging, to enhance hyperthermia, for targeted drug delivery, theranostics (therapy + diagnostics). When used in vivo, magnetic nanoparticles require a special coating that promotes biocompatibility and minimizes potential toxicity under physiological conditions. Human serum albumin or polyethylene glycol can be used as a coating. In this work, the interactions of magnetic cobalt ferrite nanoparticles (12 and 27 nm size) with diphitanoylphosphatidylcholine bilayer lipid membranes were investigated. The conductivity of membranes varied over a wide range – two groups of membranes can be distinguished – membranes, the conductivity of which (after the addition of nanoparticles) remained practically unchanged compared to the control, and membranes, the conductivity of which, upon the addition of nanoparticles, changed abruptly and increased in a wide range by 0.5–2 orders of magnitude. Significant differences between the conductivities upon the addition of the same volume of 12 and 27 nm nanoparticles surrounded by human serum albumin were not found. When adding nanoparticles with a coating of polyethylene glycol, the conductivity increased much weaker than when adding nanoparticles with a coating of human serum albumin. The results suggest that hydrophilic coated magnetic nanoparticles interact with the membranes, which can lead to the appearance of metastable conducting pores, which, in turn, increase the integral conductivity of the membranes.
DIMERIZATION OF ALUMINUM PHTHALOCYANINE CHLORIDE IN ORGANIC AND AQUA-ORGANIC MEDIUM
Authors: Klimenko I. , Astakhova T. , Timokhina E. , Lobanov A.
Published: November 2022

Aluminum phthalocyanine chloride (AlClPc) is a photoactive macroheterocyclic compound, which, in its monomeric form, is used as a photosensitizer (PS) in photodynamic therapy and diagnostics. In this paper, its physicochemical properties were studied in organic (N, N-dimethylformamide, DMF) and aqua-organic (DMF-aqua) media. It has been shown that the hydrophobic properties of AlClPc prevent its widespread use in various pharmacological compositions due to its tendency to aggregate in aqueous solutions, which leads to the formation of non-fluorescent aggregates and a decrease in its photodynamic activity. The geometry and electronic structure of AlClPc in the monomeric and dimerized (H- and

J-aggregates) states were studied using quantum-chemical calculations with the help of the electron density functional theory (DFT) method. Different types of orientation during the dimerization of AlClPc molecules are presented: “back to back”, “head to head”, “head to back”, as well as mixed-oriented types. It has been proven that both in DMF and DMF-aqua media, the preferred orientation is “back to back”, without sacrificing the monomeric geometry of the constituent molecules in the dimer. It is shown that in an aqueous organic solvent the AlClPc molecule is easily hydrated with the formation of a coordination bond between the Al atom of the AlClPc molecule and the O atom of the aqua molecule. The bond length is 2.23 Å, and the hydration energy is 16.84 kcal/mol. Hydration promotes the formation of dimers, in which two aqua molecules play the role of "bridges" between two AlClPc molecules. In such dimer, each aqua molecule has two bonds: one coordination bond between its O atom and the Al atom of one of the AlClPc molecules and one hydrogen bond between its H atom and the N atom of another AlClPc molecule. Based on the calculated data obtained, the AlClPc dimers in the DMF medium were assigned to H-aggregates, and in the DMF-water medium, to J-aggregates, respectively.
THE EFFECT OF WATER-SOLUBLE DERIVATIVES OF FULLENE C60 ON THE LEVEL OF OXIDATIVE STRESS AND ON THE TRANSCRIPTIONAL ACTIVITY OF GENES REGULATING PRO- AND ANTIOXIDANT ACTIVITY OF HUMAN EMBRYONIC FIBROBLAST CELLS (HELFs) IN VITRO
Authors: Malinovskaya E. , Savinova E. , Sergeeva V. , Ershova E. , Proskurnina E. , Kameneva L. , Dolgikh O. , Veiko N. , Kraevaya O. , Zhilenkov A. , Troshin P. , Kostyuk S.
Published: November 2022

The paper considers the effect of two water-soluble C60 fullerene derivatives modified with amino acid residues on the level of reactive oxygen species (ROS) in cultured human cells and on the transcriptional activity of genes that regulate pro- and antioxidant activity of cells. C60 fullerene derivatives with attached serine and phenibut amino acid residues were synthesized from C60Cl6 chlorofullerenes. Human embryonic lung fibroblast cultures were used in in vitro experiments. Various concentrations of fullerene derivatives were added to the culture medium, the cells were cultured in the presence of compounds from 1 to 72 hours. The level of ROS was determined using the dye 2,7-dichlorodihydrofluorescein diacetate (DCFH-DA), which is oxidized by free radicals to form fluorescent 2,7-dichlorofluorescein (DCF), by fluorescence microscopy, flow cytometry, and using a plate reader. The level of protein expression was determined by flow cytometry using specific antibodies. The level of gene expression was assessed by real-time polymerase chain reaction. It was shown that when the studied compounds are introduced into the cellular environment, they intensively absorb reactive oxygen species due to double conjugated bonds in the framework. At the same time, fullerene derivatives contribute to the development of secondary oxidative stress in cells 24 hours after administration. This effect occurs due to the activation of the NOX4 enzyme. In the cells of human embryonic lung fibroblasts, which were injected with the studied C60 fullerene derivatives, a correlation was found between the average value of the NOX4 enzyme protein and the level of reactive oxygen species. The lack of activation of the antioxidant transcription factor NRF2 upon incubation of human embryonic lung fibroblasts in the presence of C60 fullerene derivatives contributes to the development of secondary oxidative stress in cells.
LYMPHOCYTES APOPTOSIS UNDER THE ACTION OF PHYSICAL FACTORS COMBINATION
Authors: Nikanorova E. , Varganova I. , Medvedev Ya. , Nagiba V.
Published: November 2022

The article presents the comparative study results of the bioeffects of 30-minute exposure session to electromagnetic radiation with 1000 MHz frequency and 10 mW/cm2 EFD; of 30-minute exposure session to low-frequency pulsed magnetic field with 4 mT magnetic induction, as well as their combination, on rat’s lymphocytes apoptosis level in vivo. The apoptosis level was assessed morphologically with fluorescent microscope after 24-hours of cell suspension cultivation at immunological plates at 37 0C in nutrient medium without loading. The percentage of cells with morphological signs of apoptosis (margination, condensation and fragmentation of chromatin in nucleus) was quantitatively determined. It was found that electromagnetic irradiation had no significant impact on apoptosis level, but magnetic field action resulted in reducing the apoptosis cells number by 16% (p≤0,01) compared to the control group. The combination of electromagnetic radiation and low intensity magnetic field increased the apoptotic cells number by 28% (p ≤0.01) compared to the control. Thus, the mediated effect of electromagnetic radiation on blood cells genome leads to disruption of its normal functioning. It has been shown that low-frequency magnetic field can influence on intracellular processes in different directions; in combination with electromagnetic radiation it can intensify pathological reactions, and thus launching the apoptosis massive program.
مفاوضة الاعتراف ما بين الواقع في الأنظمة القانونية والتطبيق في فلسطين وقطر: دراسة تحليلية مقارنة
Authors: عبد الباقي مصطفى , مريزيق لمى
Published: November 2022

نشأت الحاجة إلى إيجاد نظام بديل للدعوى الجزائية، باعتبارها الوسيلة التقليدية في حل النزاعات، تمثلت فيما يعرف بمفاوضة الاعتراف، التي تقوم على مصالح متبادلة بين طرفي الدعوى؛ حيث يقوم المتهم بالاعتراف بالتهمة، وفي هذا تتحقق مصلحة للنيابة العامة في التخفيف عنها عناء البحث عن الأدلة، وفي المقابل يستفيد المتهم بالتخفيف من العقوبة، أو بتعديل تكييف التهمة؛ لتصبح أقل جسامة. وفي المحصلة تعود مفاوضة الاعتراف على نظام العدالة الجزائية بالفائدة الكبيرة، المتمثلة في تخفيف اختناق المحاكم، وسرعة الفصل في الدعاوى، واختصار الجهد والنفقات. تهدف الدراسة إلى معرفة مدى فعالية مفاوضة الاعتراف في القيام كبديل للدعوى الجزائية، ومدى قدرتها على حل أزمة العدالة الجزائية المتمثلة جزئيًا في الاختناق القضائي. وتقوم إشكالية الدراسة على مدى مراعاتها للمعايير القانونية للمحاكمة العادلة، كما تتمثل في قياس مدى نجاعة تطبيقها عمليًا في الدول العربية، بما فيها فلسطين وقطر، بما يراعي تحقيق العدالة الجزائية. وقد قسمت الدراسة إلى مبحثين؛ يتناول المبحث الأوّل ماهية مفاوضة الاعتراف والتطور التاريخي لها في بريطانيا وغيرها من البلدان، فيما يتناول المبحث الثاني مفاوضة الاعتراف في الأنظمة القانونية المختلفة التي تنتمي إلى كلٍّ من النظامين القانونيين الأنجلوسكسوني واللاتيني، كما تتناول الدراسة البحث في مدى ملاءمة تطبيق مفاوضة الاعتراف في كل من فلسطين وقطر
Lessons according to Shansky: the potential of N. M. Shansky’s legacy to overcome the challenges posed to the modern Russian language teacher
Authors: Bondarenko M. A.
Published: November 2022

The paper considers N. M. Shansky’s scientific and popular scientific writings as a resource available to a modern teacher of the Russian language. Teachers can use these materials to spark students’ interest in studying Russian, to enhance their research skills and their ability to identify patterns and discrepancies between the phenomena under consideration, including the development of project research assignments. The study analysed scientific, educational, scientific reference, and popular scientific sources. It also employed observation, search, and descriptive methods as well as  comparative analysis and scientific modelling. The paper presents those tasks whose content is based on the ideas and information reflected in N. M. Shansky’s works. I propose using such tasks in studying lexicology and phraseology, word formation and spelling, in mastering the functional varieties of the Russian language, and in characterising the stylistic features of texts of different types. The paper describes a variety of techniques for working with etymological, explanatory (defining), phraseological dictionaries, and literary sources. It also includes tasks for comparing entries in dictionaries of the same type as well as scientific reference and popular scientific texts. The paper provides materials for language warmups, entertaining tasks, topics for research papers. Additionally, I show the feasibility of using groupwork and referring to Internet resources. The paper concludes by arguing for the enduring value of the ideas suggested in the scientist’s works. Moreover, I highlight the potential of these materials for developing modern students’ crucial competencies as well as achieving personal, subject, and meta-subject learning outcomes formulated in the federal state educational standards.
On an interdisciplinary approach to studying concepts at school
Authors: Shutan M. I.
Published: November 2022

The paper uses the example of a learning session which focused on working with the concept of ‘syllable’ to reveal the essence of the interdisciplinary approach. The method involves blurring or even obliterating the boundaries between subjects within the framework of the educational process. This concept creates conditions for the implementation of the principle of interdisciplinarity, since, firstly, it belongs to the terminological systems of both linguistics and literary criticism. Secondly, it is impossible to apply this principle without updating the linguo-stylistic concepts common to both philological sciences. Students of the 11th form completing the tasks assigned by the teacher approach the comprehension of philology as a global system. This development is determined by their attention not only to the lexical meaning of the lexical concept, but also to the meanings that it expresses in different contexts, including literary and artistic ones. The paper characterises the stages of schoolchildren’s activity which involves lexical work aimed at the differentiation of homonyms, completing the tasks of analysing and constructing phrases and sentences, commenting on aphorisms, analysing fragments from A. S. Pushkin’s and B. A. Akhmadullina’s works. Additionally, students have to do the assignment of identifying the offered microtexts written by poets of the Silver Age, understand the philological text as a way of generalisation, perform a creative task. At the same time, attention is focused on those types of students’ activity that are common Russian language and literature lessons.
Philological analysis of a literary text as science and art in Academician N. M. Shansky’s works
Authors: Bobylev B. G.
Published: November 2022

The article characterises the conception of philological analysis of a literary text which was substantiated and developed in Academician N. M. Shansky’s works. The goal is to show the connection between this conception and the spiritual origins of philology as well as the traditions of Russian philological science. The research highlights the decisive role of the scientist’s ideas in the formation and development of the philological analysis of a literary text as science and art in Russian linguistics, literary criticism, and didactics. Additionally, the paper provides an extensive list of the academician’s writings focusing on the addressed problem.
The life cycles of the suffix -ost’- in Russian
Authors: Zelenin A. V.
Published: November 2022

The research summarises the general framework of N. M. Shansky’s PhD thesis which initiated a range of historical lexicological and synchronic linguistic studies. The paper provides arguments and examples showing the development of the scientist’s ideas on the lexical material of the 19th century. An example is N. M. Shansky’s concept of "semantic centres" in the process of filling in important socio-cultural lacunae. Involving a range of lexemes in structuring the concept "Social Environment" through the formation of relevant connotative components in them (kazarmennost’ – salonnost’ – kabinetnost’ – berlozhnost’ – keleinost’ / Engl. barrackness – salonness – cabinetness or officeness – denness – secrecy) provides a good illustration of the scientist’s idea. The average (relative) number of derivatives with ­ost’­ in the modern language is 3 500 – 4 000 lexemes. The paper examines the lexical and word-formation innovations that expand the field of derivational bases (foreign vocabulary, calques or loan translations, and semi-calques as well as low colloquial vocabulary). Additionally, the study analyses the mechanisms of interaction between the formal and the semantic criteria with the supremacy of the latter as it contributes to the removal of the previous morphonological limitations (derivation from relative adjectives ending in ­skiy). Deriving lexemes with the double ­ost’ suffix has become possible within the word-formation pattern ending in ­ost’: one suffix is in the derivational base, the other – in the stem of the derived word (skorostnost’, lichnostnost’ / Engl. high­speedness, personhood). The paper also outlines the chronological dissonance in the formation of adjectival nouns ending in ­skost’ in Russian abroad half a century ahead of the time they appeared in the language of the metropole. The ­skost’ pattern expands the nominative field by means of including surname derivatives (dostoevskost’, chekhovskost’, stalinskost’, khrushchevskost’, and others). The semantic-motivational stimulus is the "semantic increment" formed in relative adjectives due to the strong pragmatic connotation of particular precedent surnames. Thus, lexemes with the derivational suffix ­ost’­ in the modern language show ample opportunities for development both on the basis of intralingual potentials and as a result of fo reign language influence. The research employed critical-analytical, constructive-synthetic methods, definitional analy sis, the method of distinguishing between synchronic and diachronic word-formation, multiple motivation, the method of analysing usual and occasional words.
Scientist, enlightener, innovator... (to the 100th anniversary of the birth of N. M. Shansky)
Authors: Priemysheva M. N.
Published: November 2022

The paper concerns the centenary of M. N. Shansky’s birth and provides a brief overview of those aspects of the scholar’s scientific and creative activity which he was involved in as an initiator of traditions and an innovator. For instance, he authored the first higher education textbook "Phraseology of Modern Russian". Moreover, the structure and content of the textbook "Lexicology of Modern Russian" became models for the authors of other vocabulary textbooks for many decades. The popular science genre of "history of words" targeted at teachers and schoolchildren was developed in N. M. Shansky’s papers and books. The popularisation of the genre in the pages of the "Russian Language at School" journal (N. M. Shansky was its editor-in-chief for over 40 years) made the "history of words" an integral part of the Russian language teaching process. N. M. Shansky played a significant role in the development of Russian phraseology and phraseography. He not only created an expanded, in comparison with V. V. Vinogradov’s, typology of phraseological units of the Russian language, but also authored and co-authored many phraseological dictionaries, including the first etymological dictionary of Russian phraseological units. N. M. Shansky also occupied a special place in the history of Russian lexicography: he authored and co-authored a host of Russian language dictionaries, including the multi-volume "Etymological Dictionary of the Russian Language", and several typologically new dictionaries. Moreover, as the author of the lexicography section in a textbook on lexicology, he laid the foundations for the tradition of typologic al characterisation of Russian dictionaries. The content of his essays about dictionaries is also valuable. I prove this thesis in more detail using N. M. Shansky’s essay on the "Shakhmatov’s" academic dictionary of the Russian language. This paper attempts not only to comprehensively characterise the legacy of N. M. Shansky as a lexicologist, phraseologist, lexicographer, and methodologist, but also to emphasise his innovation and the invaluable contribution he made to the development of national science and education.
Review of the monograph: L. Yu. Astakhina. Sources on Russian historical lexicology. Voronezh: Science-Unipress, 2021. 492 p.
Authors: Nikitin O. V.
Published: November 2022

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International scientific seminar "Slavistics at the crossroads of history: from A. Kh. Vostokov and A. F. Gilferding to A. A. Shakhmatov and O. Broch"
Authors: Nikitin O. V.
Published: November 2022

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