bluuebunny/crossref_metadata_2025 huggingface dataset:
Massagem nas psicoterapias corporais: Um contato terapêutico que humaniza - Massage in body psychotherapies: A therapeutic touch that humanizes
Authors: Cavalcanti Caio Lucas Félix
Published: November 2023

Caio Lucas Féfix Cavalcanti 1 1 Psicólogo Terapeuta de Família, especialista em Análise Bioenergética. Massoterapeuta desde 2004. Contato: saculoiac@gmail.com.    Resumo: Na mudança fisiológica causada pela neurose, a capacidade para amar e trabalhar é diminuída na proporção em que evitamos contato para não sentirmos dor. A cronificação de um padrão muscular é a forma que o organismo encontra para lidar com a ansiedade derivada do medo, da raiva ou da tristeza, limitando a percepção e consciência corporal e emocional, blindando contra a vivência de sentimentos e sensações desagradáveis, limitando o sujeito a um isolamento cada vez mais abrangente. Na psicoterapia a massagem revela disposições cognitivas, comportamentais e afetivas, permite a ressignificação do toque e do contato interpessoal, cria a possibilidade de um holdig corporal único, que pode se desdobrar em material analítico, em transferência positiva, em comunicação não verbal. Palavras chave: Contato. Estresse. Couraça muscular. Doença mental. Massagem. Abstract: In the physiological change caused by neurosis, the ability to love and work is diminished in proportion to which we avoid contact so as not to feel pain. The chronicity of a muscular pattern is the way that the organism finds to deal with the anxiety derived from fear, anger or sadness, limiting the perception and corporal and emotional conscience, shielding against the experience of unpleasant feelings and sensations, limiting the subject to an increasingly widespread isolation. In psychotherapy, massage reveals cognitive, behavioral and affective dispositions, allows the re-signification of touch and interpersonal contact, creates the possibility of a unique body holdig, which can unfold in analytical material, in positive transference, in non-verbal communication. Keywords: Touch. Stress. Muscle armor. Mental disease. Massage.
Pancasila, Islam, and Harmonising Socio-Cultural Conflict in Indonesia
Authors: Badrun Badrun , Sujadi Sujadi , Warsah Idi , Muttaqin Imron , Morganna Ruly
Published: November 2023

The compatibility of Islam and Pancasila, the Indonesia’s national philosophy, is still interesting to elaborate even though there have been numerous discussions on the theme. Notably, this paper addresses the harmony of Pancasila and Islam as the umbrella for nationhood and statehood in Indonesia. The writers argue that Pancasila and Islam coexist harmoniously in Indonesia, and this kind of harmony is a valuable esteem to reinforce unity, diversity, and cultural heritage within the society. The acculturation of Pancasila is an effort to integrate its values into daily life through traditions and practices involving various stakeholders. This acculturation will encourage acceptance of diversity and prevent religious extremism. On the other hand, conflicts between political Islam and nationalist groups in Indonesia affect cultural-religious expressions and disrupt harmony. Pancasila is vital in addressing these conflicts and promoting diversity and ongoing dialogues.
Entre una ética hiperbólica y un principio político: la incondicionalidad del perdón en Jacques Derrida
Authors: Quintana Domínguez Idoia
Published: November 2023

Jacques Derrida afirma que el perdón está envuelto en una aporía según la cual solo se puede perdonar lo que es imperdonable. Perdonar lo perdonable sería tan solo un modo de excusar o de saldar una deuda. Si entonces únicamente hay perdón de lo imperdonable, el perdón debe hacer lo imposible y atravesar su propia imposibilidad. Esta manera de aproximarse al perdón cuestiona la lógica de las condiciones que determinan cuándo algo es perdonable, pero también toda certeza en cuanto a su tener lugar, a la posibilidad de su teorización, objetivación o presentación. En este artículo expondré algunos de los aspectos en los que Derrida se separa tanto de Hannah Arendt como de Vladimir Jankélévitch en torno al límite entre el perdón y lo imperdonable. A partir de esto abordaré el «si lo hay» que acompaña al perdón derridiano, no tanto como una duda sobre su existencia, sino como la marca de un «indecidible», una instancia secreta, irreductible e inapropiable a toda forma de determinación. Se llega así a plantear que Derrida no aspira a elaborar una teoría sobre el perdón y sus posibilidades, sino que más bien lo inscribe en una reflexión sobre la justicia, heterogénea al derecho o a la ley, pero no obstante indisociable de sus formas. Este desajuste abre un amplio campo de interrogación sobre lo que pueda implicar tornar posible la imposibilidad del perdón.
El académico y pragmático Carnéades: el arte de tomar decisiones probables sin asentir a ellas
Authors: Román Alcalá Ramón
Published: November 2023

Carnéades es un escéptico académico y un pragmático que quiere fundamentar la ética no en la idea de Bien o Valor, sino en la noción de bien útil, convincente y conveniente. Una noción basada no tanto en hacer algo grande que merezca la admiración o el elogio de las personas, sino en no hacer mal a nadie y extender el bienestar personal a la mayoría. Para ello creó una norma o guía, una regla de conducta probable o persuasiva que invitaba a actuar sin pretensiones ni orgullo, decidiendo en cada momento lo que parece más probable o persuasivo en cada ocasión para evitar la apraxia en la acción moral. Además, fue el primero en distinguir entre seguir una acción moral con la pauta de la probabilidad, y la imposibilidad de asentir a ella con seguridad de no equivocarnos.
Sufrimiento y tortura ante el espacio público
Authors: Neira Hernán
Published: November 2023

Ricœur propone que la clínica médica y la fenomenología se entrecruzan en la semiología de los signos del sufrir. Ello solo se manifiesta si se alcanza alguna las características fundamentales del sufrimiento, que habrá que determinar. Este camino permite descifrar el lugar del sufrimiento en la ciudad por medio de su vínculo con una estética de lo sublime. Siendo el sufrimiento una experiencia, la consideración de su relación con una teoría de lo sublime no solo es legítima, sino ineludible. Eso obliga a entenderlo como algo más que un hecho individual y a definirlo como de interés público. Nos detendremos en algunos escalones del sufrimiento, como son: el sufrimiento prolongado en un contexto médico, el sufrimiento animal, la tortura y el suicidio, cuando su sentido es conmover a la ciudad. Lo público puede recomponerse si se admite el sufrimiento como uno de sus intereses.
La conquête du confort - L’histoire des Parisiens nés entre 1920 et 1950
Authors: Bonvalet Catherine , Bringé Arnaud , Le Roux Guiillaume
Published: November 2023

The history of comfort in France has mainly been approached through censuses and remains relatively unknown. The INED’s biographical surveys of Parisians born between 1925 and 1950 make it possible to trace the spread of comfort over the course of the 20th century within generations and social classes. The generations born at the beginning of the century lived in narrow dwellings,  most often without sanitary facilities, and benefited from improved comfort very late. The generations born between 1925 and 1940, who experienced these same very difficult conditions during their childhood and early marriage, were able to gain access to comfort thanks to home ownership and social housing starting in the 1960s. The baby-boom generations grew up mostly in small dwellings without bathrooms but saw their housing conditions improve as their parents gained access to comfort. In addition to this generational effect, there is also a social class effect that prioritizes access to the comfort elements of inhabited housing. However, the post-war housing crisis was not an obstacle to the arrival of the baby boom.
Résumé
L’histoire du confort en France a surtout été abordée à partir des recensements et reste relativement peu connue. Les enquêtes biographiques de l’INED menées auprès des Parisiens nés entre 1925 et 1950 permettent de retracer la diffusion du confort qui s’est produite au cours du XXe siècle au sein des générations et des classes sociales. Les générations nées au début du siècle ont vécu dans des logements étroits le plus souvent sans sanitaires et profiteront très tard de l’amélioration du confort. Les générations nées entre 1925 et 1940 qui ont connu, durant leur enfance et le début de leur mariage, ces mêmes conditions très difficiles, ont pu accéder au confort grâce à la propriété et aux logements HLM à partir des années 1960. Les générations du baby-boom ont grandi pour la plupart dans des petits logements ne disposant pas de salle de bain mais ont vu leurs conditions de logement s’améliorer au fur et à mesure que leurs parents accédaient au confort. A cet effet de génération s’ajoute un effet de classe sociale qui hiérarchise l’accès aux éléments de confort des logements habités. Pour autant la crise du logement d’après-guerre n’a pas été un obstacle à l’arrivée du baby-boom.
Engenharia de métodos no tratamento dos dados de indicadores de qualidade
Authors: Silva Ana Claudia Brandão da , Oliveira Janaina da Costa Pereira Torres de , Bubnoff Sirlei Aparecida de Oliveira , Lima Byanca Porto de
Published: November 2023

A competitividade é um fator preponderante para o sucesso das organizações, em que se faz necessário reduzir os custos de produção para garantir o aumento da produtividade. Neste sentido, a aplicação da Engenharia de Métodos é indispensável visto que, continuamente as empresas precisam promover melhorias em seus processos. Visto isso, o presente estudo tem como objetivo, simplificar o processo de tratamento dos dados referentes aos indicadores de qualidade de uma empresa do setor automobilístico. O estudo de caso, busca diminuir o tempo empreendido para a realização do trabalho, para isso, ele teve início com a elaboração do fluxograma de processo, a fim de compreender o funcionamento de cada uma de suas etapas, em seguida realizou-se o estudo de tempos visando identificar o tempo padrão total da operação. Em discussões realizadas com os colaboradores do setor foram identificadas dificuldades no processo, logo foi realizada a programação em planilha do Excel de etapas efetuadas manualmente. Finalmente, elaborou-se um novo fluxograma e realizou-se novamente o estudo de tempos após a melhoria implementada, resultando em uma redução de 74% da quantidade de etapas que compõem o processo, e uma redução de 55% no tempo padrão total da atividade. Dessa forma, a partir da aplicação das ferramentas da Engenharia de Métodos foi possível reduzir o nível de complexidade do processo significativamente, permitindo que o tempo necessário para a execução da atividade também viesse a diminuir.
Impact of ethical leadership in HRM on employee's turnover intention post Covid-19
Authors: Singh Rashmi , Tarkar Preeti
Published: November 2023

Goal: The paper aims to identify ethical leadership's efficacy in HRM and differentiate it from negative HRM leadership. Pandemic and post-pandemic challenges are evident, which can destabilize an organization, so we need to develop a business-ethics perspective on leadership for HRM.
Method: For the study, the data of 120 manufacturing companies' employees from Uttar Pradesh has been collected. The analysis of data has been done with the help of simple linear regression and T-test through SPSS.
Results: The research on the concerned issue and critically reflects on negative leadership issues that arise post-Covid-19. The analysis results have concluded that there is a positive impact of ethical leadership on employee turnover intention post-covid-19 in Uttar Pradesh, and there is no significant difference in the perception of male and female respondents towards turnover intentions post-covid-19.
Limitations: The study is a small-scale study consisting of 120 employees from manufacturing companies; for future research, the data can be collected for conducting a large-scale study.
Pratical implication: The study will be helpful for organizations to know about the impact of covid-19 on HRM and will lead to creating an understanding of the need of developing ethical leadership in HRM to deal with the turnover intentions of employees at the time of crisis.
Originility: There has been various previous studies which talk about the employees turnover intentions during covid-19, while there is no previous literature available which states about the turnover intentions of employees post covid-19 in Uttar Pradesh, India. Moreover, the study is discussing the situation from an ethical perspective which is an addition to the existing literature.
Synthesis and Crystal Structure of Alkyltriphenylphosphonium Arenesulfonates [Ph3PR][OSO2Ar]
Authors:   South Ural State University, Chelyabinsk, Russian Federation, Mekhanoshina E.
Published: November 2023

The reaction of equimolar amounts of alkyltriphenylphosphonium bromides with mesitylenesulfonic, 1-hydroxy-2,4-dinitro-7-naphthalenesulfonic, 2-carboxybenzenesulfonic and sulfosalicylic acids in water leads to the formation of ionic alkyltriphenylphosphonium arenesulfonates [Ph3PR][OSO2Ar], R = CH2Ph, Ar = С6H2Me3-2,4,6 (1), R = CH2ОMe, Ar = C10H4(OH-1)(NO2)2-2,4 (2), R = (CH2)4Br, Ar = C6H4(COOH-2) (3), R = CH2ОН, Ar = C6H3(COOH-3)(OH-4) (4). Structures of complexes 1‒4 have been established by X-ray diffraction analysis. Crystals 1 [C34H35O4PS, M 570.65; monoclinic syngony, space group P21/c; сell parameters: a = 11.083(12), b = 21.520(16), c = 12.768(10) Å;  = 90.00, β = 92.62(4),  = 90.00 deg.; V = 3042(5) Å3, Z = 4; calc = 1.246 g/cm3], 2 [C30H25N2O9PS, M 620.55; triclinic syngony, space group P–1; сell parameters: a = 8.998(5), b = 12.347(5), c = 13.204(6) Å;  = 82.92(2), β = 81.90(3),  = 83.92(2) deg.; V = 1435.2(12) Å3, Z = 2; calc = 1.436 g/cm3], 3 [C29H28O5PSBr, M 599.45; monoclinic syngony, space group P21/n; сell parameters: a = 12.685(11), b = 16.178(13), c = 13.743(13) Å;  = 90.00, β = 90.39(3),  = 90.00 deg.; V = 2820(4) Å3, Z = 4; calc = 1.412 g/cm3], and 4 [C26H27O9PS, M 546.50; monoclinic syngony, space group P21/n; сell parameters: a = 9.201(4), b = 10.113(15), c = 28.77(4) Å;  = 90.00, β = 90.51(6),  = 90.00 deg.; V = 2677(7) Å3, Z = 4; calc = 1.356 g/cm3] consist of tetrahedral alkyltriphenylphosphonium cations and arenesulfonate anions with a tetrahedral sulfur atom. The P–C bond lengths vary within the range 1.717(3)−1.931(3) Å. The СРС valence angles take values 101.87(14)−122.99(13) deg. The S−C distances are close to each other and vary in range of values 1.752(5)−1.798(6) Å; the S−O bond lengths are 1.303(2)‒1.53(2) Å. Compounds 1 and 4 crystallize as hydrates. Cations and anions in complexes 1–4 are linked by weak hydrogen bonds of the S=O∙∙∙Н(Рh) [2.25‒2.67 Å] and S=O∙∙∙Н(C) [2.23–2.63 Å] type. Crystal structures 1, 2, 4 contain the CH∙∙∙π interactions. The spatial structure of crystals 1, 2 is formed with the participation of the π–π interactions. Complete tables of atomic coordinates, bond lengths and bond angles for structures have been deposited at the Cambridge Crystallographic Data Centre (no. 2164931 (1), no. 2168826 (2), no. 2163921 (3), no. 2168621 (4), deposit@ccdc.cam.ac.uk; https://www.ccdc.cam.ac.uk).
Tetra(para-tolyl)antimony carboxylates p-Tol4SbOC(O)Ar, Ar = C6H3(NO2)2-3,5, C6H4Br-3, C6H4I-4. Synthesis and structural features
Authors:   South Ural State University, Chelyabinsk, Russian Federation, Sharutin V. , Galiullina D. , Golovin M.
Published: November 2023

Tetra(para-tolyl)antimony carboxylates p-Tol4SbOC(O)Ar, Ar = C6H3(NO2)2-3.5 (1), C6H4Br-3 (2), C6H4I-4 (3) were synthesized from equimolar amounts of penta(para-tolyl)antimony and carboxylic acid in benzene at room temperature. According to X-ray diffraction analysis performed at 293 K on a D8 Quest Bruker automatic four-circle diffractometer (two-coordinate CCD detector, Мо Кα-radiation, λ = 0,71073 Å, graphite monochromator), antimony atoms in crystals of 1 [C35H31N2O6Sb, M 697,38; monoclinic syngony, symmetry group Р21/n; cell parameters: a = 10,248(7), b = 10,801(7), c = 29,10(2) Å;  = 90, β = 92,60(3),  = 90 degrees; V = 3218(2) Å3; crystal size 0,4×0,31×0,07 mm; reflection index intervals –13 ≤ h ≤ 13, –13 ≤ k ≤ 13, –37 ≤ l ≤ 37; total reflections 105827; independent reflections 7128; Rint 0,0415; GOOF 1,061; R1 = 0,0250, wR2 = 0,0564; residual electron density 0,41/0,61 e/Å3], 2 [C35H32O2BrSb, M 686,27; triclinic syngony, symmetry group P1 ̅; cell parameters: a = 10,114(7), b = 11,548(6), c = 13,889(9) Å;  = 99,16(3), β = 94,63(3),  = 107,97(3) degrees; V = 1508,7(17) Å3; crystal size 0,48×0,4×0,32 mm; reflection index intervals –17 ≤ h ≤ 17, –19 ≤ k ≤ 19, –23 ≤ l ≤ 23; total reflections 97427; independent reflections 15399; Rint 0,0506; GOOF 1,015; R1 = 0,0454, wR2 = 0,0936; residual electron density 0,89/1.55 e/Å3], 3 [C35H32O2SbI, M 733,26; triclinic syngony, symmetry group P1 ̅; cell parameters: a = 10,008(6), b = 11,472(7), c = 15,534(9) Å;  = 68,92(3), β = 85,72(3),  = 70,37(2) degrees; V = 1565,4(15) Å3; crystal size 0,43×0,28×0,09 mm; reflection index intervals –14 ≤ h ≤ 13, –16 ≤ k ≤ 16, –22 ≤ l ≤ 22; total reflections 85719; independent reflections 10417; Rint 0,0295; GOOF 1,036; R1 = 0,0366, wR2 = 0,0933; residual electron density 1,18/2,19 e/Å3], have distorted trigonal bipyramidal coordination with carbon and oxygen atoms in axial positions (axial angles are 174,83(6) for 1, 174,44(6)° for 2, 178,86(8)° for 3). The SbO distances are 2,3469(17) Å for 1, 2,2984(18) Å for 2 and 2,277(2) Å for 3. The SbC bond lengths vary in a narrow range of values (2,113(2)2,152(2) Å for 1, 2,104(2)2,171(2) Å for 2, 2,111(2)2,161(3) Å for 3). The structural organization in crystal 1 is due to weak intermolecular contacts C=O•••H (2,58 Å), NO•••H (2,58–2,63 Å). Crystal 2 contains intermolecular contacts Br•••Н (2,95 Å) and С=О•••Sb (3,080 Å). In crystal 3 the carbonyl oxygen atom is weakly coordinated with the metal atom (С=О•••Sb 3,470 Å). Complete tables of atomic coordinates, bond lengths, and bond angles for the structures were deposited at the Cambridge Crystallographic Data Center (no. 2213730 for 1, no. 2221986 for 2, no. 2222094 for 3; deposit@ccdc.cam.ac.uk; https://www. ccdc.cam.ac.uk).
Influence of the chemical prehistory of the sorbent-mineralizer on the process of its carbonization in aqueous environments
Authors:   South Ural State University, Chelyabinsk, Russian Federation, Morozova A. , Lonzinger T. , Skotnikov V. , Sudarikov M. , Lonzinger P. , Morozov A.
Published: November 2023

The ability of a sorbent-mineralizer to irreversibly bind carbon dioxide in both fresh and sea water by forming chemically and thermally stable carbonate structural forms based on melilite Ca2[Al2Mg,Si]Si2O7 has been discovered. The influence of the chemical prehistory of the sorbent-mineralizer on the process of its carbonization in aqueous media has been revealed. It has been shown that the CO32– groups in the composition of the original sorbent-mineralizer are the primary active centers in the surface phase formation of carbonized calcium and magnesium aluminosilicates in aqueous media. It has been established that the thermal stability of the struc-ture of carbonized calcium and magnesium aluminosilicates is retained after heating to 1000 °C. The formation of carbonized calcium and magnesium hydroaluminosilicates in sea water is ac-companied by an increase in pH, which characterizes the ability of the sorbent-mineralizer to regulate the acid-base balance and maintain the carbonate balance in the hydrosphere. In addition to irreversible binding of CO2, in sea water the sorbent-mineralizer exhibits the ability to irreversibly adsorb the impurity cations, such as Pb2+, Cu2+, Zn2+, as well as phosphorus
Thermal properties of dipicolinic acid and dipicolinic acid sodium salt NaH(COO)2C5H3N•H2(COO)2C5H3N•3H2O
Authors:   South Ural State University, Chelyabinsk, Russian Federation, Rajakumar K. , Sharutin V. , Zherebtsov D. , Osipov A. , Lutsenko A.
Published: November 2023

Pyridine-2,6-dicarboxylic acid (dipicolinic acid) are actively studied by scientists. Dicarboxylic acid can be used as a special biomarker of anthrax. The crystal structure of NaH(COO)2C5H3N•H2(COO)2C5H3N•3H2O (1) was redetermined from single crystal. In the structure of the sodium salt of dipicolinic acid, sodium is the central atom having two molecules of dipicolinic acid and three molecules of water as ligands. The dipicolinic anion coordinate sodium cation by both oxygens and one nitrogen atom. A network of hydrogen bonds connects water and dipicolinic acid molecules. Hydrogen bonds take part in the formation of building blocks and arranging them into chains which, in their turn, make up layers. The sodium salt of dipicolinic acid as well as its precursor – dipicolinic acid were studied by IR spectroscopy and simultaneous thermal analysis. According to thermal analysis dipicolinic acid is anhydrous substance, that decompose on melting at 252 °C forming only gaseous products, presumably CO2 and pyridine. Opposite to that, thermolysis of its sodium salt follow much more complicated way. According to thermogram the 1 has first stage of three water molecules removal at 105 °C. The measured mass loss is very close to expected mass loss. Heat of dehydratation reaction is 151 kJ/mole. On a further heating the sodium salt of dipicolinic acid was melted at 256 °C with large mass loss. The nature of products at 268 and 315 °C is hard to state. EDX elemental analysis of black residue after 700 °C state brutto-formula of “NaNC5O2” – Na cyanate or carbonate in glassy carbon matrix.
On using a Netzsch 449 Jupiter synchronous thermal analyzer to determine the boiling point of substances
Authors:   South Ural State University, Chelyabinsk, Russian Federation, Zherebtsov D. , Tolstoguzov D. , Bulanova A. , Avdin V.
Published: November 2023

The influence of the mass of water, p-xylene, ethylene glycol, and naphthalene on the measured values of temperature and heat of their transformations has been studied. It has been shown that a synchronous thermal analyzer Netzsch 449F1 Jupiter can be successfully used to determine boiling points of substances. The final temperatures of their evaporation monotonously increase together with an increase in the mass of a substance. It has been shown that with the achievement of a certain mass, the boiling process becomes stationary, accompanied by the formation of a linear front of the boiling peak, close in slope to the slope of the front of the melting peaks of various pure substances. A modified technique of differential scanning calorimetry data processing has been proposed and tested to solve this problem, giving an uncertainty in determining the boiling point of ± 4 °C in the case of water, ethylene glycol, and p-xylene, as well as ±6 °С in the case of naphthalene. The error in determining the boiling heats by the data of a synchronous thermal analyzer is ±5 % in the case of water and naphthalene; however, in the case of ethylene glycol and p-xylene, the error reaches 10 % and 40 %, respectively, which makes this method not quantitative, but only semi-quantitative or qualitative in regard to determination of the transformation heat. Using the example of anthranilic acid and diiodoparaxylene, the method has been tested, and the obtained data on temperatures and heats of transformations for these compounds; notably, the transformation heats were not previously known from the literature. For example, anthranilic acid, according to our data, has a previously undescribed polymorphic transformation at 91 °C with the heat of 28.5 J/g, melting at 145.5 °C with the heat of 150 J/g, and boiling at 230 °C with the heat of 310 J/g. According to our data, diiodoparaxylene melts at 102 °C with the heat of 60 J/g and boils at 310 °C with the heat of 95 J/g.
Organic platinum compounds containing two or more platinum–carbon bonds. Synthesis, structure, possibilities of practical application
Authors:   South Ural State University, Chelyabinsk, Russian Federation, Sharutin V. , Rybakova A.
Published: November 2023

Methods of obtaining together with some reactions, and structural features of organic platinum compounds containing two or more platinum-carbon bonds, as well as examples of their possible use, have been systematized and described based on the analysis of the literature published mainly from 2020 to 2023, In discussion of the synthesis methods, the attention is mainly paid to the most efficient approach to obtain them. Formation reactions of organic platinum compounds are considered and information about their biological and catalytic activity is given.
Adducts of antimony and bismuth aryl compounds with carboxylic acids, phenols, and oximes
Authors:   South Ural State University, Sharutina O. , Sharutin V.
Published: November 2023

When the reaction products of triarylantimony or -bismuth with carboxylic acids, phenol, or oxime in the presence of tertiary butyl hydroperoxide (molar ratio 1:2:1, diethyl ether, 24 °C, 24 h) were recrystallized brom benzene or toluene, the adducts of antimony or bismuth aryl compounds with carboxylic acids, phenol, and oxime of the Ar3MX2 type were isolated as minor products. According to X-ray structural analysis performed at 293 K on a D8 Quest Bruker automatic four-circle diffractometer (two-coordinate CCD detector, Mo Kα radiation, λ = 0.71073 Å, graphite monochromator), metal atoms in crystals m-Tol3Sb[OC(O)C6H3F2-2,5]2 ∙ HOC(O)C6H3F2-2,5 (1) [C42H31O6F6Sb, M 867.42; triclinic syngony, symmetry group P1 ̅; cell parameters: a = 8.78(5), b = 13.10(6), c = 16.64(8) Å;  = 102.86(19), β = 99.3(2),  = 98.0(3) degrees; V = 1813(16) Å3; Z 2; reflection index intervals –7 ≤ h ≤ 7, –11 ≤ k ≤ 11, –14 ≤ l ≤ 14; total reflections 14149; independent reflections 2603; Rint 0.0284; GOOF 1.049; R1 = 0.0348, wR2 = 0.0938; residual electron density 0.55/0.42 e/Å3]; p-Tol3Bi[OC(O)C6HF4]2∙HOC(O)C6HF4 (2) [C42H25O6F12Bi, M 1062.60; triclinic syngony, symmetry group P1 ̅; cell parameters: a = 12.246(11), b = 12.976(18), c = 14.391(13) Å;  = 68.27(4), β = 69.89(3),  = 86.11(5) degrees; V = 1990(4) Å3; Z 2; reflection index intervals –15 ≤ h ≤ 15, –16 ≤ k ≤ 16, –18 ≤ l ≤ 18; total reflections 48542; independent reflections 9207; Rint 0.0321; GOOF 1,136; R1 = 0.0322, wR2 = 0.0648; residual electron density 1.81/1.08 e/Å3]; [(2-MeO-5-BrC6H3)3SbOC6H4Br-4]2O∙2HOC6H4Br-4 (3) [C66H54Br10O11Sb2, M 2065.69; monoclinic syngony, symmetry group C21/c; cell parameters: a = 12.017(14), b = 25.54(3), c = 13.181(18) Å; β = 116.71(5) degrees; V = 3613(8) Å3; Z 2; reflection index intervals –13 ≤ h ≤ 13, –27 ≤ k ≤ 27, –12 ≤ l ≤ 12; total reflections 29461; independent reflections 4545; Rint 0.0656; GOOF 1.062; R1 = 0.0565 wR2 = 0.1200; residual electron density 1.59/1.31 e/Å3]; [(2-MeO)C6H4]3Sb[ON=CHC4H2O(NO2-2)]2 ∙ 2HON=CHC4H2O(NO2-2) ∙ ½PhH (4) [C44H38N8O19Sb, M 1104.57; triclinic syngony, symmetry group P1 ̅; cell parameters: a = 10.240(5), b = 14.480(8), c = 18.093(11) Å;  = 103.43(3), β = 104.50(2),  = 98.876(17) degrees; V = 2461(2) Å3; Z 2; reflection index intervals –13 ≤ h ≤ 13, –18 ≤ k ≤ 18, –23 ≤ l ≤ 23; total reflections 58643; independent reflections 10886; Rint 0.0558; GOOF 1.061; R1 = 0.0429, wR2 = 0.1095; residual electron density 1.91/0.51 e/Å3] have a distorted trigonal-bipyramidal coordination with the oxygen atoms in axial positions. Complete tables of atomic coordinates, bond lengths, and bond angles for the structures were deposited at the Cambridge Crystallographic Data Center (no. 2050322 for 1, no. 2045173 for 2, no. 2070387 for 3, no. 2119790 for 4; deposit@ccdc.cam.ac.uk; https www.ccdc.cam.ac.uk).
Theoretical evaluation of phenyl-substituted aziridines, azirines and epoxides reactivity
Authors:   South Ural State University, Chelyabinsk, Russian Federation, Borodina O. , Novikov A. , Zyryanov G. , Bartashevich E.
Published: November 2023

The reactivity of three-membered heterocycles such as phenyl-substituted aziridines, azirines, epoxides was studied in comparison with styrenes, azomethines and carbonyl com-pounds which are most often used in organic synthesis in nucleophilic and electrophilic reactions. In accordance with electronic reactivity indices of nucleophilicity and electrophilicity calculated on the base of DFT approach, the substituted molecules of azirines, aziridines, and epoxides ex-hibit the similar reactivity to aldehydes and styrenes. In all cases, our predictions were checked against the experimental observations given in literature. All considered compounds mainly characterizes by the properties of medium-strength electrophiles. Aziridines, azirines, epoxides with two aryl groups show the best electrophilic properties. This observation can be used in predictions of reactivity for these classes of compounds. Among three-membered heterocycles, the best nucleophilic properties were observed for substituted epoxy cycles. We have found that the dual descriptor based on Fukui functions cannot be recommended for predictions the reactivity of aziridines and epoxides. The values of the dual descriptor on both carbon atoms in three-membered ring significantly differ, while the experimental data on nucleophilic addition indicate that the reaction proceeds at both carbon atoms. Nevertheless, for phenyl-substituted azirines, the descriptor based on Fukui functions shows its effectiveness quite well.
STUDYING THE COSTCRITICAL DEFORMATIONS OF SHUTTER SPHERICAL PANELS OF CONSTANT THICKNESS
Authors:   Ural Federal University, Ekaterinburg, Russian Federation, Chupin V.V. , Chernogubov D.E.
Published: November 2023

An algorithm for studying the stress-strain state of elastic thin-walled shell systems consisting of shells of revolution has been developed. To solve the nonlinear problem of strong bending of a thin isotropic shell of revolution, in which no restrictions are imposed on the angles of rotation of the normal to the original coordinate surface and the relative linear deformation is small compared to unity, we used the Newton-Kantorovich, which reduces the nonlinear boundary value problem to an iterative sequence of linear boundary value problems. A method was applied to reduce the linear boundary problems to several Cauchy problems, which were integrated numerically using the Runge- Kutta method. To ensure the stability of the solution of stiff Cauchy problems, S.K. Godunov’s method of discrete orthogonalization was applied. Based on this algorithm, a computer program was written to determine the parameters of the stress-strain state of shells with a wide range of changes in geometric, physical, and force parameters and boundary conditions. The stress-strain state of sloping spherical panels of constant thickness with pinching on the outer contour under uniform external pressure has been studied. The process of the formation of loops on the deformation curve depending on the height of the shell has been investigated. Changes in the height of the shell with a constant support contour radius simulates the initial irregularity in its manufacture.
THE MODELING OF SURFACE PLASMON POLARITONS EXCITATION IN A RECTANGULAR GOLD-BASED NANORESONATOR
Authors:   Chelyabinsk State University, Chelyabinsk, Russian Federation, Bychkov I.V. , Kuzmin D.A. , Zagrebina M.A.
Published: November 2023

This paper considers the modeling of surface plasmon polaritons excitation in a limited nanostructure on the basis of a two-dimensional area discrete model, the area interacts with the oscillator. The nanostructure is a rectangle defined on the metal surface at the interface of the gold–silicon oxide, the surface plasmon–polaritons are excited by an electromagnetic radiation point source located above the metal surface. The dynamics of radiation point source is described by a discrete version of the Van der Pol equation with a small nonlinearity of the source parameters. The parameters of the goldsilicon oxide structure (the wave phase speed, the radiation source frequency, the characteristic time in the system, etc.) will be received from the dispersion relation for surface plasmon–polaritons at a single metal–dielectric interface. The distributions of the wave field in the structure will be analyzed at different positions of the point oscillator and different coupling coefficients of the wave field with the oscillators. The resonant wave field mode composition at different positions of the point oscillator and different coupling coefficients will be found using the two-dimensional Fourier transform of the wave field, the time evolution of excited modes of the wave field amplitudes will be also analyzed. In conclusion, the paper gives applicability limits of the considered model for studying the surface plasmon polaritons excitation in a limited nanostructure.
MEASURING THE SPECIFIC HEAT CAPACITY OF GLASS BASED ON 2B2O3+Bi2O3 IN A WIDE TEMPERATURE INTERVAL
Authors:   S.U. Umarov Physical-Technical Institute, of the National Academy of Sciences of Tajikistan, Dushanbe, Republic of Tajikistan, Kuchakshoev D.S. , Dzhabarov A.G. , Kholov A.
Published: November 2023

In this work, we used cooling to experimentally determine the temperature dependence of the specific heat capacity of glass made with the compound 2B2O3 + Bi2O3 (2:1) with the addition of 0,01, 0,02, 0,04, 0,08, 0,12, and 0,5 mol NaOH to 1 mol of the initial mixture. It has been experimentally determined that with an increase in the Na content in the initial mixture, the temperature dependences of the specific heat capacity of glasses from the melt to close to room temperature are complex. Their physical interpretation is given based on the features of molecular mobility in the temperature range up to and above the glass transition temperatures.
THE ASYMPTOTIC BEHAVIOR OF THE APPROXIMATE SOLUTION OF A ONE-DIMENSIONAL SINGULARLY PERTURBED GOLDSHTIK PROBLEM
Authors:   Chelyabinsk State University, Chelyabinsk, Russian Federation, Pavlenko V.N. , Derkunova E.A. ,   South Ural State University, Chelyabinsk, Russian Federation
Published: November 2023

The Cauchy problem is considered for an ordinary differential equation with discontinuous phase- variable nonlinearity, in the right part of which a small parameter is included. The same parameter occurs in the initial conditions, leading to the problem going from classical to singularly perturbed. It seems possible to solve the problem in such a formulation, firstly based on the concept of an exact solution, by means of the theory of equations with discontinuous nonlinearities; and secondly, being singularly perturbed, by the method of constructing asymptotics of the boundary layer type. Since the exact solution suffers a discontinuity at the starting point, which is not justified in the physical sense, the equation is approximated in order to obtain an approximate smoothed solution. It requires a convergence to the exact solution when the small parameter tends to zero. An equation with a smoothed righthand side gives a solution in quadratures. Then the proximity of its asymptotic to the exact solution is proved. From the exponential proximity of the asymptotic to the approximate solution, the required behavior follows for the latter.
A NON-INVASIVE METHOD FOR MEASURING LIQUID AND GAS FLOW RATES THROUGH A PIPELINE WALL
Authors:   South Ural State University, Chelyabinsk, Russian Federation, Krivonogov A.A. , Gontarev K.A. ,   K-Omega, LLC, Chelyabinsk, Russian Federation
Published: November 2023

In connection to methods developed for determining “liquid-gas” volume-mass parameters, carried out at South Ural State University, this article presents a new method for measuring liquid and gas flow rates. The method makes it possible to measure a turbulent flow’s convective velocity through a pipeline wall and the volumetric flow rate of a liquid or gas. A brief description of Taylor's “frozen turbulence” hypothesis, which forms the basis of the method, is given, and the main problems associated with its proof in relation to the problem of determining the convection velocity of turbulence are identified. A mathematical signal processing method is presented based on two-dimensional frequency-wave number spectral processing and spatiotemporal signal filtering. A functional scheme and the input signal processing algorithm of the proposed device is presented. Mathematical modeling was performed in the ANSYS CFD computational fluid dynamics package using the hybrid eddy-resolving turbulence model SBES to determine the optimal configuration of the experimental setup. A brief description is given of the non-invasive sonar flow meter “K-Omega P1” prototype based on method presented and of numerical simulation results. Tests were performed on the METRAN-UPA-2000 flow test workbench which is a secondary standard. Full-scale test results on the flow test workbench for five flow rates are presented. Conclusions are drawn about the research results to date and further steps to improve the measurement method using the k-omega beamforming processing method.
A COMPUTATIONAL AND EXPERIMENTAL STUDY INTO THE INFLUENCE OF STRUCTURAL DAMPING ON A STRUCTURE’S DURABILITY UNDER RANDOM LOADING
Authors:   South Ural State University, Chelyabinsk, Russian Federation, Khoroshevskii K.A. , Erpalov A.V. , Gadolina I.V. ,   Mechanical Engineering Research Institute of the Russian Academy of Sciences, Moscow, Russian Federation
Published: November 2023

Mechanical engineering products are often subjected to dynamic impact during operation. The analysis of the durability of structures functioning under random multi-frequency loading requires taking into account their dynamic parameters (natural frequencies and vibration forms, damping, etc.). This paper analyzes the influence of the damping coefficient on the durability of a structurally similar specimen using a method for the narrow-band process and the Dirlik method. A computational scheme based on a finite element model determines the stress spectral density. The study defines the range of the damping coefficient variation by experiment and calculates the durability of the damping coefficient. The influence of damping on durability is analyzed by different methods. The calculations are experimentally verified.
THE COMPARATIVE RESULTS OF THE THERMODYNAMIC AND FIRST-PRINCIPLE MODELING OF DISORDERED SOLUTIONS OF THE Fe–V SYSTEM
Authors:   South Ural State University, Chelyabinsk, Russian Federation, Mirzoev A.A. , Verkhovykh A.V.
Published: November 2023

This paper considers the concentration dependences of the average magnetic moment of the Fe–V system and solution enthalpy as a function of the vanadium concentration from 1 to 10 at% for a disordered Fe–V solid solution in an orderly magnetic state using first-principle calculations of the electronic structure in the WIEN2k software package. The results are compared with data obtained using CALPHAD-models in previous studies. A conclusion about the prospects of finding a possible inversion of the short-range order in Fe–V alloys similar to the inversion in Fe–Cr systems has been made on this basis.
TRANSFER OF PULSES ALONG A LIQUID METAL FLOW
Authors:   Institute of Continuous Media Mechanics UB RAS, Perm, Russian Federation, Kolesnichenko I.V. , Ozernykh V.S. , Golbraikh E. ,   Ben-Gurion University of the Negev, Beersheba, Israel
Published: November 2023

This work develops a method for measuring the speed of an isothermal flow of liquid metal in a cylindrical channel. The method does not require calibration, is non-contact and is based on a correlation technique. The generation of pulses is carried out using rotating magnetic field inductors. Pulses of the axial velocity component are recorded by recording the electromagnetic response of local velocity meters. It is shown that with a small number of pulses, the value of the correlation function is small, which does not allow the velocity to be reliably measured, even with increasing pulse intensity. Conversely, a high degree of correlation for this technique is achieved with a significant increase in the number of pulses, which entails an increase in the duration of measurements.
Analisis Stabilitas Lereng Pada Perencenaan Seawall di Pantai Slamaran, Pekalongan
Authors: Sopyan Syakirah Nadhifah Rizqi , Widada Sugeng , Suryoputro Agus Anugroho Dwi , Ismanto Aris
Published: November 2023

Perencanaan pembangunan seawall yang dilakukan pada Pantai Slamaran dilakukan agar dapat mengurangi dampak erosi yang terjadi Pantai Slamaran. Dalam proses perencanaannya, perlu dilakukan analisis stabilitas lereng agar mengetahui potensi longsoran rotasi pada bangunan seawall. Tujuan dilakukan penelitian ini adalah menganalisis nilai faktor keamanan yang akan menunjukkan keadaan lereng yang akan direncanakan. Pada penelitian ini, analisis dilakukan pada dua rancangan kemiringan yang berbeda, yaitu perbandingan kemiringan 1:1,5 dan perbandingan kemiringan 1:2 di keadaan Highest High Water Level (HHWL) dan Lowest Low Water Level (LLWL). Berdasarkan hasil analisis, rancangan seawall dengan perbandingan kemiringan 1:1,5 menunjukkan kedaan lereng kritis. Hal ini dibuktikan dengan hasil nilai faktor keamanan sebesar 1,332 pada keadaan HHWL dan 1,368 pada keadaan LLWL. Sementara itu, rancangan seawall dengan perbandingan kemiringan 1:2 menunjukkan lereng stabil. Hal ini dibuktikan dengan nilai faktor keamanan lereng sebesar 1,906 pada keadaan HHWL dan 1,921 pada keadaan LLWL. Dari hasil tersebut, dapat disimpulkan bahwa rancangan seawall dengan perbandingan kemiringan 1:2 memiliki potensi longsoran rotasi yang lebih kecil dibandingkan rancangan seawall dengan perbandingan 1:1,5.Kata kunci: Seawall, Faktor Keamanan, Stabilitas Lereng, Slamaran, Pekalongan Analysis of Slope Stability in Seawall Planning at Slamaran Beach, Pekalongan The seawall development planning carried out on Slamaran Beach was carried out in order to reduce the impact of erosion that occurred on Slamaran Beach. In the planning process, it is necessary to analyze slope stability in order to determine the potential for rotational avalanches in seawall buildings. The purpose of this research is to analyze the value of the safety factor, which will indicate the state of the slope that will be planned. In this study, the analysis was carried out on two different slope designs, namely a slope ratio of 1:1,5 and a slope ratio of 1:2 in the states of the Highest High Water Level (HHWL) and the lowest low water level (LLWL). Based on the results of the analysis, the seawall design with a slope ratio of 1:1,5 indicates a critical slope. This is evidenced by the results of the safety factor values of 1,332 at the HHWL and 1,368 at the LLWL. Meanwhile, the seawall design with a slope ratio of 1:2 shows a stable slope. This is evidenced by the value of the slope safety factor of 1,906 at the HHWL and 1,921 at the LLWL. From these results, it can be concluded that the seawall design with a slope ratio of 1:2 has a smaller potential for rotational landslides than the seawall design with a ratio of 1:1,5. Keywords: Seawall, safety factor, slope stability, Slamaran, Pekalongan
Penentuan Daerah Upwelling Berdasarkan Indikator Suhu Permukaan Laut dan Klorofil-a di Perairan Selat Sunda Tahun 2010 - 2019
Authors: Ramadlanie Fie'ulya Yusro , Indrayanti Elis , Handoyo Gentur
Published: November 2023

berdasarkan indikator klorofil-a dan suhu permukaan laut (SPL). Data yang digunakan meliputi data SPL dari citra Aqua MODIS, data klorofil-a dari OC-CCI, dan data kecepatan angin dari ASCAT. Pengolahan data dengan metode komposit menggunakan bahasa pemograman IDL. Hasil penelitian menunjukan bahwa puncak peristiwa upwelling terjadi di Selat Sunda bagian selatan dengan intensitas medium pada musim peralihan 2 dengan nilai klorofil-a sebesar 0,77 mg/m3 dan SPL 28,5 ̊C dikarenakan adanya arus yang bergerak ke arah barat sampai pada Selat Sunda yang didorong oleh kencangnya angina muson tenggara. Sedangkan pada perairan Selat Sunda bagian utara yang berbatasan langsung dengan Laut Jawa dan dikelilingi oleh pulau-pulau kecil memiliki nilai konsentrasi klorofil-a yang cenderung konstan berkisar 0,3 – 0,5 mg/m3dengan nilai SPL tinggi berkisar 29º C – 30º C. Kata kunci: Klorofil-a, Selat Sunda, SPL, Upwelling Abstract Identification of Upwelling Areas Based on Indicators of Sea Surface Temperature and Chlorophyll-a in Sunda Strait Waters in 2010–2019 The Sunda Strait is a strait that connects the Java Sea with the Indian Ocean. The mixing of the two water masses in the Sunda Strait will affect seawater productivity. One phenomenon that is closely related to seawater productivity is upwelling. This study aims to determine areas indicated for upwelling in the Sunda Strait based on chlorophyll-a indicators and sea surface temperature (SST). The data used includes SST data from Aqua MODIS, chlorophyll-a data from OC-CCI, and wind speed data from ASCAT. Data processing with the composite method using the IDL programming language. The results showed that the peak of upwelling occurred in the southern part of the Sunda Strait with medium intensity during transitional season 2 with a chlorophyll-a value of 0.77 mg/m3 and an SST of 28.5º C due to currents moving westward to the Sunda Strait. driven by strong southeast monsoon winds. Whereas in the northern part of the Sunda Strait, which is directly adjacent to the Java Sea and surrounded by small islands, the concentration of chlorophyll-a tends to be constant, ranging from 0.3–0.5 mg/m3 with high SST values ranging from 29–30º C.Keywords: Chlorophyll-a, Sunda Strait, SST, Upwelling
Simulasi Pola Arus Permukaan 2 Dimensi di Perairan Pulau Nyamuk Taman Nasional Karimunjawa Pada Musim Peralihan II
Authors: Alam Mikala Faza , Indrayanti Elis , Yusuf Muh
Published: November 2023

Pulau Nyamuk adalah salah satu gugusan kepulauan yang berada di Kawasan Taman Nasional Karimunjawa, Kabupaten Jepara, Provisi Jawa Tengah. Pulau Karimunjawa ini memiliki karakteristik yang spesifik baik secara geografis maupun ekologissebagai kawasan perairan tipe semi tertutup. Pulau ini dikelilingi oleh gugusan pulau-pulau besar dan kecil. Lokasi yang spesifik ini akan mempengaruhi arah, kecepatan dan pola arus serta karakteristik gelombang. Tujuan dari penelitian ini akan mengkaji pola pergerakan arus permukaan melalui pendekatan model dua dimensi di Perairan Karimunjawa, khususnya di perairan Pulau Nyamuk. Pola pergerakan arus diperoleh berdasarkan model pendekatan hidrodinamika 2D. Verifikasi kesesuaian model dilakukan dengan membandingkan terhadap hasil pengukuran lapangan tanggal 23-26 Oktober 2021. Pengukuran arus menggunakan metode deskriptif kuantitatif. Penelitian menunjukkan bahwa kecepatan arus maksimum 0,056 m/s ke arah 66° dan arus minimum 0,001 ke arah 38° dengan karakteristik arus pasut sebesar 51,44%. Pasang surut perairan Nyamuk, Karimunjawa bertipe pasang surut tunggal. Hasil simulasi model menggunakan pendekatan hidrodinamika 2D menggambarkan arah pergerakan arus yang terjadi cenderung bersifat bolak–balik akibat adanya dominasi arus pasut dengan kecepatan rata–rata 0,013 m/s.AbstractNyamuk Island is one of the island groups in the Karimunjawa National Park area of Karimunjawa, Jepara Regency, Central Java Province. Karimunjawa has specific characteristics both geographically and ecologically, namely the water area is a semi-closed type, because it is surrounded by a group of islands, both large and small islands. Karimunjawa waters will be greatly influenced by the direction, speed, and pattern of currents and the characteristics of the waves that occur at that time. This study aims to determine the pattern of surface current movement with a two-dimensional model approach in Nyamuk Waters, Karimunjawa. The current movement pattern is obtained based on the 2D hydrodynamic approach model. Verification of the suitability of the model is carried out by comparing the results of field measurements carried out on October 23-26 October 2021. The current is carried out using a quantitative descriptive method. The results showed that the maximum current velocity was 0.056 m/s in the direction of 66° and the minimum current was 0.001 in the direction of 38° with a tidal current characteristic of 51.44%. Tides Nyamuk waters, Karimunjawa single tidal type. The simulation results using a 2D hydrodynamics approach describe the direction of current movement that tends to be alternating due to the dominance of tidal currents with an average speed of 0.013 m/s.