bluuebunny/crossref_metadata_2025 huggingface dataset:
O Perfil Socioeconômico dos Trabalhadores Migrantes do Sul Global em Porto Alegre/RS - Brasil
Authors: Brandt Grazielle Betina , Corbellini Mariana Dalalana , Mendelski Bruno
Published: September 2024

A proposta deste artigo é a de analisar o perfil socioeconômico dos migrantes do Sul Global em Porto Alegre, capital do estado do Rio Grande do Sul, Brasil.  A partir de uma pesquisa exploratória, com a utilização de dados secundários sobre os migrantes internacionais no Brasil, coletados via Sistema de Registro Nacional Migratório (SISMIGRA)  e as informações contidas na Relação Anual de Informações Sociais (RAIS), buscamos: (i) identificar as principais nacionalidades dos migrantes do Sul-Global; (ii) evidenciar o gênero e raça/cor dos trabalhadores migrantes; (iii) analisar a escolaridade, principais profissões e remuneração média em salários mínimos (SM) dos migrantes. Com base nos dados coletados observamos que Porto Alegre tornou-se território de destino para migrantes do Sul Global – em sua maioria, homens, pretos e/ou pardos, provenientes do Haiti e da Venezuela, chegados ao Brasil em busca de trabalho. A sua escolaridade, em geral, é superior à do nacional, contudo atua em profissões de baixa remuneração, especialmente no setor de serviços gerais. No caso das mulheres, a inserção destas no mercado de trabalho formal é ainda menor em relação aos  homens. A migração Sul-Sul está  envolta em elementos que se articulam em torno das estruturas sociais e econômicas. No caso dos migrantes do Sul Global em Porto Alegre, o olhar mais atento sobre raça e gênero, revela que as tradicionais discriminações laborais recebidas por brasileiros desses grupos, também são observadas nos migrantes internacionais.
Triagem para risco de insegurança alimentar e nutricional de famílias beneficiárias do programa bolsa família de Pantano Grande/RS
Authors: Freitas Eduarda de , Bueno Marilene Cassel , Kirsten Vanessa Ramos , Blümke Adriane Cervi
Published: September 2024

A pobreza e a vulnerabilidade no Brasil originam um cenário no qual a população não é contemplada com seus direitos básicos, incluindo a alimentação. Nesse sentido, a Insegurança Alimentar e Nutricional (IAN) é caracterizada quando uma família não tem acesso aos alimentos, em quantidade e qualidade que supra suas necessidades nutricionais. O estudo tem como objetivo avaliar o risco de Insegurança Alimentar e Nutricional e seus fatores associados em famílias beneficiadas pelo Programa Bolsa Família (PBF), no município de Pantano Grande, RS. A pesquisa foi do tipo transversal com abordagem quantitativa a partir de uma amostra não probabilística, com famílias beneficiadas pelo PBF. Foram aplicados três questionários, sendo um para avaliar os dados socioeconômicos, um de Triagem para Risco de Insegurança Alimentar e outro para avaliar os marcadores de consumo alimentar. Os dados foram analisados no software EpiInfo versão 7.2.5.0. Foram avaliadas 44 famílias e a prevalência de IAN foi de 91%, sendo 75% de IAN grave. Dentre os resultados, a IAN foi mais presente nas famílias chefiadas por mulheres brancas (38,7%; n=17), com idade entre 29 e 50 anos (59,1%; n=26), solteiras (59,1%; n=26), desempregadas (65,9%; n=29), que recebiam menos de um salário mínimo (54,5%; n=24) e com ensino fundamental incompleto (38,7%; n=17), contudo os resultados não apresentaram diferença estatística. Conclui-se que é necessário a implementação de políticas públicas para garantir o direito humano à alimentação adequada e a criação de programas complementares de geração de renda, principalmente para população que já se encontra em situação de vulnerabilidade social.
A arquitetura histórica em Taquari - RS: a herança cultural da colonização açoriana expressa no patrimônio arquitetônico
Authors: Silva André Vanderlei da
Published: September 2024

O presente artigo é resultado de pesquisa desenvolvida sobre o patrimônio cultural de Taquari (RS), com foco em edificações construídas no século XIX. O objetivo principal é diagnosticar e inventariar prédios que apresentem elementos arquitetônicos característicos que remetam aos primeiros povoadores açorianos. Teoricamente, trabalha-se a partir de conceitos de patrimônio cultural e educação patrimonial. O artigo está organizado da seguinte maneira: (a) inicia com análise de literatura básica sobre a história de Taquari-RS, sobre o conceito de patrimônio cultural e Educação Patrimonial e a arquitetura colonial luso-açoriana. (b) Discussão sobre os dados levantados a partir do inventário e diagnóstico das edificações. (c) Considerações Finais.
Psychometric Properties of the Three Dimensional Meaning in Life Scale (3DM) among Turkish-Speaking Adults
Authors: Subaşı Mustafa
Published: September 2024

Previous research supports the tripartite framework of meaning in life (MiL). The Three Dimensional Meaning in Life Scale (3DM) is a self-report measure drawing upon the tripartite framework. 3DM includes coherence, purpose, and significance. The primary goal of the present research was to evaluate the psychometric properties of the Turkish version of the 3DM, and to assess how 3DM and its subscales relate to mental health and psychopathology indicators in a Turkish-speaking adult sample. The present research recruited a sample of 702 participants (Female = 540). Confirmatory factor analysis, measurement invariance analyses, Pearson’s correlation tests, reliability analyses, regression analyses, and independent samples t-tests were utilized. The first-order confirmatory factor analysis confirmed that the Turkish version replicated the 11-item three-factor structure of the 3DM: [(χ2= 181, df =40, p =.00)], CFI = .98, TLI = .97, RMSEA = .071, 90%CI[.060, .081], SRMR = 0.03. Internal consistency coefficients of the subscales and the 3DM total showed strong reliability with strong item-total correlations. The correlation coefficients of the 3DM supported concurrent and divergent validity. The 3DM predicted well-being and psychopathology indicators. Measurement invariance analyses of the subscales demonstrated that coherence, purpose, and significance scales were consistent and equivalent across gender. The results indicate that the Turkish version of the 3DM is a valid and reliable scale when administered among adult Turkish-speaking people.
Construction of balanced functions with high nonlinearity and other cryptographic properties
Authors:   Novosibirsk State University, Shaporenko Alexander S.
Published: September 2024

We present an iterative construction that can be used to construct balanced functions with high nonlinearity. Using this construction, we obtained Boolean functions in an even number n ⩾ 18 of variables which have no linear structures with nonlinearity 2n-1 - (2n/2-1 + 2n/2-3 + 2n/2-5 + 2n/2-7). Additional conditions are given under which the functions obtained using the construction will be correlation immune. We also present results concerning “bent sum decomposition problem”.
Blind signature as a shield against backdoors in smart cards
Authors:   CryptoPro, Akhmetzyanova Lilia R. , Babueva Alexandra A. ,   CryptoPro, Bozhko Andrey A. ,   CryptoPro
Published: September 2024

The problem of signature forgery (including signature key recovery) in the presence of backdoors in the hardware or software of functional key carriers (smart cards) is considered. A new approach to solving the problem based on using blind signature schemes is proposed. It is shown that honest-signer blindness and honest-but-curious unforgeability of the blind signature schemes imply security against backdoors in smart cards. As a concrete example, we consider a blind version of the GOST signature scheme (the blind signature scheme proposed by Camenisch) and show that this scheme is resistant to backdoors under the single assumption that GOST is secure in the standard sense.
Contextual analysis of the bipolar structures connectivity
Authors:   Institute of Applied Mathematics, Far Eastern Branch of the Russian Academy of Sciences, Losev Alexander S.
Published: September 2024

The paper discusses an original approach to the analysis of network structures of various natures, which are represented in the form of graphs. It is assumed that the probability of connectivity of individual edges functionally depends on their physical characteristics (edge length) and tends to zero. The issue of increasing the connectivity probability of the entire graph is being addressed, which is defined as the probability of the existence of a sequential set of edges connecting the selected start and end vertices. A distinctive feature of the proposed method is the move away from the traditional reservation of obviously weak connection points towards a functional impact on individual connections of the structure, changing their physical characteristics. Based on the theory of systems functioning and the theory of dominants, contextual approach is being developed aimed at identifying the dominant connections of the graph, reflecting the functional and meaningful meaning of the connections between the vertices of the original modeled object. As a result, a set of dominants S is identified, consisting of edges whose parameters meet the given criteria. The selection criterion is the length of the edge included in the asymptotic relation, which characterizes the connectivity probability of the entire graph. It has been proven that changing the length of edges from a given set by ε > 0 increases the probability of connectedness of the original graph in the maximum case in h-ε or h-εβ times, where h → 0 and β is a parameter depending on the number of graph paths passing through this edge. Various methods have been proposed to increase the connectivity probability of the graph under consideration: from the point of view of the point effect, by reducing the length of a single edge from the set S; from the position of influencing the maximum set of edges from S, allowing to obtain the overall maximum effect. A comparative analysis of the proposed ways to increase the probability of graph connectivity has been carried out, and the appropriate conditions have been identified to achieve the maximum effect from the selected methods of influence.
Generically undecidable and hard problems
Authors:   Sobolev Institute of Mathematics, Rybalov Alexander N.
Published: September 2024

The generic-case approach to algorithmic problems examines the behavior of an algorithm on typical (almost all) inputs and ignores the rest of the inputs. The method of generic amplification was proposed by A. Myasnikov and author for constructing of generically undecidable problems. The main ingredient of this method is the cloning technique, which combines the input data of a problem into sufficiently large sets of equivalent input data. Equivalence is understood in the sense that the problem is solved in the same way for them. We present a generalization of this method. We also construct a problem that is decidable in the classical sense, but which is not generically decidable in polynomial time. We use a different method to generic amplification, because generic amplification is unlikely to be applicable here.
The normative-stylistic explanatory dictionary as an “instant photograph” of the contemporary language use: Yury S. Sorokin’s theory revisited
Authors:   Institute for Linguistic Studies, Russian Academy of Sciences, Vorontsov Roman I.
Published: September 2024

The article reconsiders Yury S. Sorokin’s theoretical approach (1967) to the type of the normative-stylistic explanatory dictionary of the modern Russian language. The fundamentals of the theory are discussed, together with its genesis and significance for the current Russian lexicographic process. Having been elaborated more than half-century ago, Sorokin’s concept, which is characterized by an in-depth, well-balanced, and consistent approach to the solution of fundamental problems of explanatory lexicography, is now especially relevant and important. The appeal to Sorokin’s theory allows adjusting our way of looking at the development of this lexicographic field, which is evaluated today as quite spontaneous and inconsistent. The idea of a normative-stylistic dictionary as the central type among academic dictionaries (tracing back to Lev V. Shcherba’s classical theory) brings to light such key attributes of a normative description of the Russian literary vocabulary as systematicity and synchronicity. Moreover, thanks to Sorokin’s balanced theoretical approach, lexicographers obtain a well-reasoned opportunity to create a complex description of vocabulary with respect to its functional-stylistic and chronological differentiation. An essential feature of Sorokin’s theory determining its supertemporal nature is the provision for a harmonized combination of various vectors of lexicographic description, which at the same time does not grow into inconsistency and compromise. The article shows that Sorokin’s theory is of prime importance for the typology of Russian explanatory dictionaries as it helps lexicographers to override various radical concepts (from a thesaurus-like dictionary to a prescriptive (or even prohibitive) dictionary) and to come into a medial position that will only allow focusing on the true task of normative explanatory lexicography, i.e. the codification of the literary language norm for the purpose of its conservation in the nation’s cultural background. The author declares no conflict of interests.
Plant names in the Dictionary of the Russian Academy (1789–1794): Sources and lexicographic representation principles
Authors:   European University at St Petersburg, Kovalenko Kira I. ,   Institute for Linguistic Studies of the Russian Academy of Sciences, Kolosova Valeria B. ,   European University at St Petersburg; Institute for Linguistic Studies of the Russian Academy of Sciences
Published: September 2024

The 18th century was the time of dramatic transformations in various life spheres of the Russian Empire. Significant changes occurred in scientific knowledge as well. After founding the Academy of Sciences and creating botanical and apothecary gardens in St. Petersburg, Moscow, Astrakhan, and Tobolsk, scientific botany was being established and botanical terminology was being formed. In 1789-1794, the Dictionary of the Russian Academy (DRA) was published. It was the first academic dictionary, and many famous natural scientists of that time participated in its compilation. The project authors actively used their predecessors’ works. Since DRA was conceived as a normative dictionary, not all phytonyms could be included. A thorough discussion of the materials preceded the work on the explanatory part. The headwords selection was based on analogous tables. They contain approximately 55,000 headwords; more than 1,800 are plant names, names of plant parts (such as apple), and adjectives derived from them. In analogous tables, we find references to the travels by 1.1. Lepekhin, P.S. Pallas, and I.G. Gmelin. Many of these references are confirmed on addressing the sources. Depending on the volume, 30% to 70% phytonyms from the analogous tables were included in DRA. DRA entries describing flora and fauna are notable for their encyclopedic style and include Linnaean Latin taxonomic names. Researchers see the reason in the fact that these entries were taken from a natural science reference work - the Lexicon of Natural History, compiled by 1.1. Lepekhin at that time. DRA also included phytonyms from the works by S.P. Krasheninnikov. Synonymous names with various geographical or stylistic marks could be explained independently of each other in different dictionary entries or through references from one entry to another. In DRA, as in other lexicographic works, there are looped references and so-called “blind links” leading to non-existing dictionary entries. To find the denotation of a phytonym without interpretation, researchers often need to address other texts containing the lexemes of interest. We are especially grateful to the project participants M.M. Pirogovskaya, O.S. Belichenko, and G.A. Molkov for valuable comments. The authors declare no conflicts of interests.
Fish Species Assemblages and Diversity in Water Body Infested by Alien Species
Authors: Mohammad Siti Nur Atikah , Abd Razak Iqbal Harith , Mohd Fauzi Akmal Amalina , Azlan-Hisyam Nurhidayah , Martin Melissa B , Nelson Bryan R. , Borkhanuddin Muhammad Hafiz , Aqmal-Naser Mohamad , Ahmad Amirrudin B.
Published: September 2024

Human is one of the mediators for non-native species invasion, especially in the aquatic ecosystem. Aquaculture and sport fishing activities are the main reasons for non-native fish introduction, especially in man-made habitats. In the present study, we determined the fish community between the invaded as opposed to pristine ecosystems in north Terengganu, Malaysia. The primary data was collected using hook and line, hand-held push net, cast net and gills net while secondary data were also utilised from published and unpublished data. The fish general information including functional traits and prey-predator relationship were obtained from literature and reliable online resources. The data were used to construct hypothetical diagrams and analyzed using taxonomic distinctness index. The fish community between the two habitats differ significantly in which the non-native fish invaded habitat has much lesser fish species richness than that of the pristine habitat. Taxonomic diversity between the two habitats also was markedly different. The non-native Cichla ocellaris added predation pressure to fish community in the lacustrine habitat as the apex predator and were proven to feed on the native fish fauna in the lake. We discuss the community structure in both habitats and explore the further impact of invasion by this invasive alien species on the native fish species. We conclude that the presence of Cichla ocellaris amplify pressure to native fish community in the man-made lake.
Hubungan Kointegrasi dan Kebersebaban Granger antara Sektor-Sektor Utama Indeks Harga Pengeluar di Malaysia
Authors: Masseran Nurulkamal , Halil Nur Atiqa , Ismail ‪Noriszura , Ismail Mohd Sabri
Published: September 2024

Penyesuaian harga adalah salah satu faktor yang boleh digunakan untuk mengawal kecekapan pasaran. Ia merupakan salah satu pendekatan dalam proses pengagihan sumber, kawalan hasil pengeluaran, mahupun pengawalseliaan kerajaan. Bagi tujuan tersebut, Indeks Harga Pengeluar (IHPR) merupakan maklumat penting yang sentiasa dirujuk dalam proses pembuatan keputusan dan polisi berkaitan penyesuaian harga. IHPR adalah indeks berasaskan output yang mengukur perubahan harga komoditi untuk jualan pasaran. Penyelidikan ini mengkaji tingkah laku kointegrasi dan hubungan kebersebaban Granger antara pemboleh ubah dalam IHPR di Malaysia. Data kebangsaan IHPR yang dilaporkan oleh Jabatan Perangkaan Malaysia bagi tempoh Januari 2010 sehingga Disember 2023 telah dianalisis. Objektif kajian ini adalah untuk memahami hubungan dinamik antara pemboleh ubah IHPR dalam konteks ekonomi negara Malaysia menerusi pendekatan ujian punca unit, model vektor autoregresif, analisis penyebab Granger dan kointegrasi Johansen. Hasil kajian mendapati bahawa wujud tiga hubungan satu hala yang signifikan antara pasangan sektor-sektor IHPR iaitu; i) perubahan dalam sektor perlombongan adalah penyebab Granger kepada sektor perubahan dalam sektor pembuatan; ii) perubahan dalam sektor bekalan elektrik merupakan penyebab Granger kepada perubahan dalam sektor perlombongan dan iii) perubahan dalam sektor bekalan air merupakan penyebab Granger kepada perubahan dalam sektor bekalan elektrik. Namun, didapati tiada hubungan kebersebaban dua hala yang signifikan bagi perubahan antara mana-mana pasangan sektor pemboleh ubah IHPR. Selain itu, berdasarkan ujian kointegrasi Johansen, didapati kointegrasi antara pasangan pemboleh ubah IHPR; i) sektor pertanian-perlombongan dan ii) sektor pertanian-pembuatan adalah signifikan. Ini mengimplikasikan bahawa kedua-dua pasangan sektor tersebut menunjukkan tingkah laku kestabilan hubungan jangka panjang dari aspek perubahan nilai indeks antara sektor.
Hubungan Mikroplastik dan Kualiti Air di Sungai Melaka, Melaka, Malaysia
Authors: Abdul Halim Mohamad Hafiz , Ismail Harith Abdul Adzim , Zulkipli Laila Zulaifah , Abdul Manan Shamsuri , Mohd Ali Masni , Jansar Khairiatul Mardiana
Published: September 2024

Sungai Melaka adalah sumber pendapatan utama bagi masyarakat di negeri Melaka telah tercemar oleh mikroplastik. Penyelidikan ini bertujuan untuk mengkaji kelimpahan dan ciri mikroplastik yang dijumpai di dalam sampel air daripada 9 stesen pensampelan di sepanjang Sungai Melaka. Kualiti air dan perhubungan antara mikroplastik dengan sifat fizikokimia kualiti air juga dianalisis dalam kajian ini. Purata kelimpahan mikroplastik di Sungai Melaka adalah 569 zarah L-1. Mikroplastik warna hitam dan bentuk serpihan merupakan ciri-ciri mikroplastik yang dominan. Poliamida (PA) dan polietilena tereftalat (PET) adalah jenis polimer yang banyak dijumpai di dalam semua sampel air. Jumlah pepejal terampai (TSS) ditemui sebagai parameter yang mempunyai pengaruh terhadap mikroplastik gentian di Sungai Melaka. Secara keseluruhan, keputusan ini memberi maklumat terkini mengenai pencemaran mikroplastik di Sungai Melaka dan menyediakan data penting untuk penyelidikan lanjut mengenai mikroplastik dalam ekosistem air tawar.
Peningkatan Pertumbuhan dan Pengumpulan Lipid dalam Biojisim Coelastrellasp. (UKM4) Semasa Fikoremediasi Air Larut Resapan
Authors: Ni Aznan Mohamad Faisal , Mohd Yasin Nazlina Haiza , Anathan Vikesh Varma
Published: September 2024

Mikroalga berpotensi dalam merawat air lesap dan bioijisimnya mampu menghasilkan kandungan lipid yang boleh digunakan untuk menghasilkan biodiesel. Namun, pertumbuhan mikroalga dalam media kompleks seperti air larut resap adalah aspek yang penting untuk dikaji supaya proses ini dapat dikomersialkan. Justeru, kajian ini merangkumi dua objektif iaitu untuk mengkaji model matematik yang sesuai bagi kinetik pertumbuhan Coelastrella sp. (UKM4) dalam air larut lesap dan meneroka potensi mikroalga dalam penyingkiran nutrien serta penghasilan lipid sewaktu fikoremediasi air larut lesap. Dalam kajian ini, air larutlesap yang tinggi dengan kandungan nitrogen dan fosforus digunakan untuk pertumbuhan mikroalga Coelastrella sp. (UKM4). Penilaian model matematik yang terbaik terhadap pertumbuhan Coelastrella sp. (UKM4) yang dikultur dalam air larut lesap dianalisis dengan menggunakan tiga model (Logistik, Logistik terubah suai dan Gompertz terubah suai). Hasil menunjukkan model yang terbaik bagi pertumbuhan Coelastrella sp. (UKM4) adalah model Gompertz terubah suai berdasarkan lengkung suaian yang menghampiri model dengan sisihan piawai yang kecil. Dalam tempoh 15 hari, Coelastrella sp. (UKM4) mampu menurunkan 100% nutrien dalam air larut lesap serta mengumpul kandungan jasad lipid yang tinggi dalam biojisim mikroalga. Kesimpulannya, air larut lesap yang kaya dengan kandungan nutrien merupakan media pengkulturan yang sesuai untuk pertumbuhan Coelastrella sp. (UKM4). Selain itu, penghasilan lipid yang tinggi juga berupaya menjadikan proses fikoremediasi ini lebih mampan.
Methyl Orange Dye Removal by Dimethylamine Functionalized Graphene Oxide
Authors: Sew Hui Juen , Bahrudin Noor Nazihah , Basri Nur Amilah Fadlina , Wahid Mohd Haniff
Published: September 2024

Graphene oxide (GO) functionalized with dimethylamine (DMA) was successfully prepared using a facile technique. GO was first synthesized using the modified Hummers method, followed by chemical functionalization with DMA in the presence of an electrophilic linker, i.e., epichlorohydrin (ECH). FTIR analysis of the end product ascertains the successful synthesis of GO as well as its functionalization with DMA. Typical characteristic peaks attributed to GO and DMA are clearly discernible in the spectrum. The effect of pH, adsorbent dosage, dye concentration, and contact time towards methyl orange (MO) dye removal was studied and reported herein. In summary, enhanced adsorption of methyl orange was observed for DMA functionalized GO compared to GO alone. 90% removal was observed with 10 mg/L of MO concentration, pH = 2 at temperature 25 °C and 5 mg of adsorbent. Modelling study shows that the pseudo-second-order kinetic model and Freundlich isotherm model provide better fitness to the experimental data.
Combined Anti-Diabetic and Wound Healing Effects of Binahung Leaf (Basella rubra L.) and Snakehead Fish (Channa striata) Extracts in Alloxan-Induced High-Fat Diet Rats
Authors: Sasongko Heru , Muslimah Intan , Alvianti Ningsih Sukmania Indra , Sutarno Sutarno
Published: September 2024

Diabetes mellitus is a metabolic disease that continues to increase in the world. Lifestyle factors cause diabetes cases to increase uncontrollably. The development of medicines based on natural ingredients has become a subject of study for researchers throughout the world. Meanwhile, binahong leaf extract contains flavonoids and saponins, which can reduce the absorption of glucose. Snakehead fish extract containing albumin also influences the reduction of diabetic wounds. The combination of binahong and snakehead fish extract is expected to synergistically lower blood glucose levels and cure diabetic wounds. Therefore, this study aimed to determine the anti-diabetic and wound healing activity resulting from the combination of binahong leaf and snakehead fish extract in rat models of diabetes induced with alloxan and fat diet. The test animals were divided into six groups with five per group, namely normal, positive, and negative control, as well as dose 1 (snakehead fish 250 mg/kg and binahong extract 100 mg/kg), dose 2 (snakehead fish 250 mg/kg and binahong extract 300 mg/kg), and a single dose of snakehead fish extract 500 mg/kg. The experiment was conducted for 21 days by administering the test solution once a day. The results showed that administering a combination of binahong extract at a dose of 100 mg/kg and snakehead fish at a dose of 500 mg/kg significantly reduced blood glucose levels in diabetic rats (p≤0.05). Treatment using a combination of the two extracts was more effective in lowering blood sugar levels compared to a single dose of snakehead fish extract.
Mechanism of Damnacanthal Induced Apoptosis in CEM-SS Cell Line
Authors: Gopalsamy Banulata , Latifah Saiful Yazan , Abdul Hamid Hisyam
Published: September 2024

Leukaemia, is cancer of organs that is responsible to produce blood specifically the lymphatic system and bone marrow. Due to the harsh effects of currently used cancer drugs, damnacanthal, an anthraquinone obtained from the roots of Morinda elliptica is tested as a potential anticancer agent. This study reports on the participation of the p53, Bcl-2 and Bax in the apoptosis induced by of damnacanthal, on T-lymphoblastic leukaemia (CEM-SS) cell. Cell viability and morphology was tested with trypan blue assay, flow cytometry analysis detected the apoptotic activity of damnacanthal, caspase colorimetric protease assay tested the Caspase 2, 3, 6, 8, and 9’s involvement and Enzyme-linked Immunosorbent Assay (ELISA) was carried out to quantify the Human p53, Bcl-2, and Bax expression levels. Damnacanthal exhibited cytotoxicity at doses 10 and 30 µg/mL after 72 h of incubation. This study reports that damnacanthal arrested the cell at G2/M phase and initiates the apoptotic activity in the cells treated with 30 µg/mL of damnacanthal for 72 h through caspase 2 and 6 activation and not caspases 3, 8, and 9. Furthermore, this anthraquinone induces apoptosis via p53-independent pathway. Damnacanthal also lowered Bcl-2 and increased Bax activity in CEM-SS cell lines. These anticancer properties of damnacanthal makes it a potential agent to treat T-lymphoblastic leukaemia.
Kinematic Differences between Gradual and Impulsive Coronal Mass Ejections: The Role of Flares
Authors: Hamidi Z.S. , Ansor N. Mohamad , Shariff N.N.M.
Published: September 2024

Coronal Mass Ejections (CMEs) are significant solar events that involve intense explosions of magnetic fields and mass particles out from the corona. These events are known to be the main driver of space weather and other disturbances experienced by the Earth. Generally, there are two types of CMEs – gradual and impulsive, and each type has different properties which is important to be studied on as they have potential to cause breakdowns in our systems. This study is aimed to analyze and differentiate the kinematic behavior of gradual and impulsive CME with the association of weak and strong flares. Data collection is made through SOHO LASCO catalogues and STEREO database which include velocity, acceleration and angular width as well as images. At the end of this study, it can be deduced that impulsive CME (specifically associated with strong flare) is the most prominent event that has greatest angular width and average velocity. The associated flare has contributed more heat energy to speed up the magnetic energy conversion which results to high velocity of plasma discharge. Since fast CME carries huge amount of momentum during the ejection, impulsive CMEs also experience decelerations due to loss of momentum that has been transferred to background solar wind.
Thermosensitive Hydrogel Containing Chinese Herbal Compound Extract and Hyaluronic Acid-Chitosan Quaternary Ammonium Salt Microspheres for Topical Application: Preparation and Characterization
Authors: Li Peiyang , LiZhao Li , Wang Junlin , Nie Hong
Published: September 2024

Allergic contact dermatitis (ACD) is a highly prevalent allergic inflammatory dermatosis with persistent severe pruritus. Zhi-Yang-Fang (ZYF), a topical Chinese herbal compound used in clinical practice for treating ACD, has certain drawbacks such as inconvenience in use and its impact on aesthetics. This research aimed to overcome these shortcomings by developing an F127/F68-based thermosensitive hydrogel containing ZYF aqueous extract and hyaluronic acid-chitosan quaternary ammonium salt (HA-HTCC) microspheres. The 19 major components of ZYF aqueous extract were preliminarily identified using ultra-high-performance liquid chromatography coupled to Quadrupole-Exactive Orbitrap mass spectrometry (UPLC-Q Exactive Orbitrap-MS) analysis. HA-HTCC microspheres and HA-HTCC microspheres containing ZYF aqueous extract were prepared using the physical cross-linking method, and the success of the preparation was confirmed through a series of characterisations. The concentration of F127 and F68 was screened. The proportions of each substance in the final hydrogel formulation were determined, prepared using the cold method, and characterized using scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and a rotational rheometer. These technologies verified the successful preparation, temperature sensitivity, and stability of the hydrogel. The hydrogel developed may be considered a promising approach for the management of ACD.
Credible Delta Gamma (THETA) Normal Value at Risk for Assessing European Call Option Risk
Authors: Sulistianingsih Evy , Rosadi Dedi , Abu Bakar Maharani
Published: September 2024

The current research introduces a novel risk metric called credible delta-gamma (theta)-normal Value-at-Risk (CredDGTN VaR) for the purpose of the option risk assessment. CredDGTN VaR represents an extension of the credible Value-at-Risk (CredVaR) framework, whereby risk assessment is conducted through the integration of CredVaR with delta-gamma(theta)-normal VaR. The present study introduces a novel approach that is deemed suitable for evaluating the risk of a portfolio of European call options. The proposed method takes into account the nonlinear interdependence of the market risk factors determining the value of a European call option, according to the Formula of Black-Scholes. The present methodology is employed to assess simulated financial data that portrays the return of multiple assets throughout ten investment periods. The novel approach is additionally employed to assess the level of risk associated with a portfolio comprised of actively traded stock options. According to Kupiec's backtesting, CredDGTN's efficacy in gauging the risk of an option portfolio is noteworthy, as it accurately measures the risk at 80%, 90%, and 95% confidence levels, even in cases where the profit/loss (P/L) exhibits non-normal distribution. Furthermore, the performance of CredDGTN VaR empirically outperforms credible delta-normal VaR (CredDN VaR) and credible delta-gamma-normal VaR (CredDGN VaR) in similar cases. Moreover, CredDN VaR, CredDGN VaR, and CredDGTN VaR will provide equal VaR when delta and gamma are zero.
Bayesian Approach for Estimating the Parameters of the Time-To-Failure Distribution and Its Percentiles Under Power Degradation Model
Authors: Naji Ba Dakhn Laila , Abu Bakar Mohd Aftar , Mohd Tajuddin Razik Ridzuan , Ibrahim Kamarulzaman
Published: September 2024

The degradation models are often applied on the degradation data for studying time-to-failure distribution. In this study, the Bayesian approach is applied on the power degradation model for estimating the parameters of the time-to-failure distribution and its percentiles. Two different distributions are assumed for the degradation parameter of the model. The degradation parameter is firstly assumed to follow the skew-normal distribution with three jointly independently distributed parameters such that the gamma prior is assumed for the shape parameter, while the scale and the location parameters are assumed uniform. The second distribution assumed for the degradation parameter is the log-logistic distribution with two jointly independent random parameters where the shape parameter is assumed gamma, while the scale parameter is assumed uniform. Based on the Gibbs sampling method carried out under the JAGS platform, the models considered are applied on the simulated data and the NASA turbofan Jet engine dataset and the results found are compared. In modeling the time-to-failure distribution, it is shown that based on the simulated data and real data, the Bayesian approach for the power degradation model with the skew-normal degradation parameter outperformed the Bayesian approach for the power degradation model with the log-logistic degradation parameter.
Enhanced Foreign Exchange Volatility Forecasting Using Ceemdan with Optuna-Optimized Ensemble Deep Learning Model
Authors: Kausar Rehan , Iqbal Farhat , Raziq Abdul , Sheikh Naveed , Rehman Abdul
Published: September 2024

Foreign Exchange (FX) is the largest financial market in the world, with a daily trading volume that significantly exceeds that of stock and futures markets. The prediction of FX volatility is a critical financial concern that has garnered significant attention from researchers and practitioners due to its far-reaching implications in the financial markets. This paper presents a novel hybrid ensemble forecasting model integrating a decomposition strategy and three deep learning (DL) models: Long Short-Term Memory (LSTM), Bidirectional LSTM (BiLSTM), and Convolutional Neural Network (CNN). This combination addresses individual models' limitations and further improves the accuracy and stability of FX volatility forecasting. The proposed approach utilizes the CEEMDAN technique to decompose volatility into multiple distinct intrinsic mode functions (IMFs) and merges these IMFs with GARCH and EGARCH volatilities to form the input dataset for the DL models. In addition, we employed an attention mechanism to improve the effectiveness of the DL techniques. Furthermore, the hyperparameters for the DL models are optimized using the Optuna algorithm. Finally, a hybrid ensemble model for forecasting exchange rate volatility is developed by combining the predictions of three distinct DL models. The proposed approach is evaluated against various benchmark models using evaluation measures such as MSE, MAE, HMSE, HMAE, RMSE, Q-LIKE, and the model confidence set (MCS) approach. The results demonstrate that our proposed approach provides accurate and reliable forecasts of FX volatility under different forecasting regimes, making it a valuable tool for financial practitioners and researchers.
TEMPORAL LINEAR STABILITY OF A CONVECTIVE ATMOSPHERIC PARCEL WITH AN AFFINE VELOCITY FIELD
Authors: Kramoh Yao , Koffi François N’doli , Koffi Stanille Adjoua , Zeze Djédjé Sylvain
Published: September 2024

In this article, we study the temporal linear stability of some class of convective atmospheric parcels, assuming an input affine velocity profile. The purpose is to compare the results to those obtained in our previous studies [1]. The assumption of an affine velocity profile led to the establishment of a satisfying base flow since the pressure is hydrostatic and the vertical gradient of the density is decreasing. Subsequently, the disturbance of our basic flow allowed us to obtain dispersion relations whose resolutions have given eigenfrequencies. Numerical analysis of these eigenfrequencies has shown that apparent gravity is not a destabilizing parameter, unlike the real gravity intensity and the entrainment rate, which are destabilizing parameters for the atmospheric cell in full ascent in the atmospheric boundary layer.
Art Therapy in the Format of Stress-Overcoming Behavior in the Context of Organizing Students’ Creative Work
Authors: Deulin D.V. , Petrov V.E.
Published: September 2024

The authors of a scientific publication in the context of organizing creative work for students, the authors study the influence of art therapy on the consequences of stress. In order to experimentally confirm the influence of elements of fine art on the psycho-emotional well-being of students (reducing stress levels), the authors conducted an empirical study on a sample of students from the Moscow State Psychological and Pedagogical University. A total of 82 subjects took part in the study. As the main methods, the authors use observation, survey, analysis of educational and scientific literature, formalized methods: the PSM25 psychological stress scale (Lemur-Tesier-Fillion psychological stress scale) and the «A. Leonova Subjective Comfort Scale». The mathematical criteria were the nonparametric Mann-Whitney U test and the Wilcoxon T test. As part of the study, the authors come to the conclusion that isotherapy is an effective tool for reducing stress and increasing the subjective comfort of students.
Attachment as a Need for Protection and Safety
Authors: Simonova M.M. , Камнева E.V.
Published: September 2024

The work aims to clarify the concept of “attachment”. The article, based on materials from foreign sources, examines the development of the main provisions of attachment theory. Attachment is based on an evolutionary need for survival. Depending on the connection with security, the following types of attachment are distinguished: secure attachment, avoidant attachment, ambivalent attachment, and disorganized attachment. For a child, attachment is important for safety and survival. However, attachment style can undergo changes and adaptation to varying degrees in light of different life experiences. Attachment theory suggests that the way the bond develops between a child and their mother early in life will influence their sense of security and social, emotional, and mental development later in life. Research on this topic shows that the initial relationships formed at the very beginning of life give rise to the attachment style characteristic of a person in adulthood, which, as a rule, underlies the degree to which a person feels safe and emotionally secure in different relationships throughout their life. The quality of attachment helps shape a child's internal model of behavior regarding the social world, predicting how well children function in their relationships with teachers and friends, as well as their curiosity and motivation to solve problems. Conclusion: For humans, attachment is important for security and survival. At the same time, attachment style may undergo changes and adaptation to varying degrees in light of different life experiences.
Computer-Gaming Addiction among Students
Authors: Stelmakh S.A. , Kerimova Ya.
Published: September 2024

The article addresses the pressing issue of computer gaming addiction in the modern information society. It examines the extent of gambling addiction among students, including identifying the frequency and duration of gaming activity, as well as the manifestation of aggressiveness and depression associated with gambling addiction. The author's “Computer Gaming Addiction” questionnaire, which includes scales of addiction, aggressiveness, and depression, was used as empirical research method. Statistics method: φ* Fisher criterion. The study involved 1st-4th year students of the East Kazakhstan University named after Sarsen Amanzholov, aged 17 to 35 years. A total of 198 people participated, of which 77% were female. The study provides evidence of a connection between computer gaming addiction and aggression, indicating more pronounced aggressiveness among individuals with high levels of gaming addiction. The results suggest that the male sample is more susceptible to gambling addiction, and the associated aggressiveness can manifest in real life.
Grammatical Peculiarities of Russian and Chinese Languages: Comparative Aspect
Authors: Burmistrova T.A.
Published: September 2024

The relevance of this study is connected with its inclusion in the modern paradigm of linguistic research aimed at studying languages in a comparative aspect. Interest in comparative studies is caused by the need to identify universal features of linguistic material, the desire to describe the national picture of the world of speakers of different languages, the need to improve bilingual dictionaries and other reasons. Comparative description is an effective method of studying the interaction and mutual enrichment of languages, allowing to reveal structural differences of languages, national specificity of semantics, linguocultural peculiarities of languages, cognitive differences of peoples' consciousness. The sphere of comparative description includes the whole area of phonetic structure of a language, lexicon, grammar, syntax. In this article we will consider the grammatical features of the Russian and Chinese languages.
Types of Semantic Changes in the Agul Language
Authors: Merdanova S.R.
Published: September 2024

The paper describes various mechanisms of semantic changes in one of the Dagestani languages, Agul. The lexical semantics of Agul is currently an understudied but extremely interesting area of Caucasian linguistics. One of the most interesting ways in which polysemousness and synonymy emerge is the euphemisation of words and expressions due to various socio-cultural, ethical and moral reasons.
Werewolf Women: from Fairy Tale Image to a Plot Motif in Literature
Authors: Man X.
Published: September 2024

The article deals with the phenomenon of female werewolfism in Russian folklore and Russian-language literature. The image of a female werewolf in Russian folklore is divided into three categories: 1. Wonderful wives; 2. Bewitched lovers; 3. Substituted wife or bride. The image of a female werewolf in fairy tales is analyzed, functional diversity is revealed. The mythological origin of the image, connected with the idea of "otherworldliness" and anthropomorphic perception of the world, is studied. In Russian folklore, the female werewolf appears either in the image of a victim, who by nature is a human being, or she is asserted to have the function of salvation and improvement of the surrounding world. The transformation into various animals is not only an expression of totemism of Old Russian ancestors, but also a hidden manifestation of otherworldliness. At the same time, the female werewolf is the companion of the male protagonist, the key to the other world and a test for his marriage. The dual nature of woman in Russian fairy tales is eventually overcome, and the woman finally enters the hero's world. Further written literature transforms the worldview aspect into a metaphor describing the complexity and ambiguity of female behavior. N.V. Gogol again actualizes ideas about werewolves-witches, in Soviet literature the phenomenon of werewolfism will appear in the works of P.P. Bazhov, and in modern literature — in the novels of Victor Pelevin. Female werewolves in modern literature are often portrayed as characters with complex emotions and inner conflicts, as unusual creatures, but with human essence and emotions, or acquire them in the process of communication. The connection between werewolfism and the otherworld has always been maintained.
The Work of Maxim the Greek and the Sermons of Andrei Denisov: towards the Formulation of the Problem
Authors: Zhuravel O.D.
Published: September 2024

The literary school created by the Vyg Old Believers the early 18th century is a unique phenomenon of Russian culture. The Vygovtsy' desire to use the latest rhetorical strategies was organically combined with a reliance on national tradition, represented, in particular, by a system of book authorities. These included the 16th-century Greek-Russian theologian, philosopher, and philologist Maxim the Greek, deeply revered by the Old Believers. The defenders of the Old Rite not only used his writings in ecclesiastical polemics to defend their position. It was the Vyg Old Believers, led by their mentor Andrei Denisov (1676-1730), who continued the manuscript tradition of Maxim' writings, creating a new codex on the basis of his texts — the Pomorian Codex. The article emphasizes that Maxim the Greek influenced the literary work of Andrei Denisov, the leader of the Vyg Old Believers. He was not only the initiator of many years of work on the creation of the Pomorian Codex and not only one of the main compilers of the Pomorian Answers, where the arguments of Maxim the Greek were used. The name of Maxim and references to his writings can be found in Andrei Denisov's sermons, and one of Maxim the Greek's plots, borrowed from the work of Hieronymus Savonarola, formed the basis of Andrei Denisov's popular work in the Old Believer tradition — Slovo plachevno o zlostrafaniyah i skorbeh Tserkvi Christovoy [the Lamenting Tales for the afflictions and sorrows of the Church of Christ]. The author of the article makes assumptions about the influence of some artistic principles of the work of the famous Athonite on the poetics of Andrei Denisov's sermon.
Language Identity Development: Cognitive Aspects of Being a Self-made Bilingual
Authors: Gaivoronskaya S.O.
Published: September 2024

Overall cognitive development of a person might be evaluated through the analysis of their speech. Thus, language reflects the way people process the information coming from the outer world. In this work we look into the problem of how to form language habits that would affect human cognition. In particular, we look into the ways to develop a mindset for associative language structures from the point of lexical semantics. The problem of acquiring new lexical knowledge mostly occurs in second-language learners. Nevertheless, the phenomenon of linguistic intercalation might be observed in adult bilinguals with a high proficiency level in their second language. Processes underlying first language attrition might be a key to mental lexicon development in second-language acquisition. The presented study is aimed to consider the ways to boost learners’ vocabulary through associative learning based on corpus technologies principles. Methodology of the study includes a cohort survey analysis, a set of associative experiments and semantic analysis of target vocabulary represented by slang words derived from English. The comparative analysis of the cohort group (represented by students studying a linguistics degree) survey results and the target words’ semantic meaning proves the considerable difference in associative-relations patterns formed within bilingual mind. Corpus technologies discussed in the article allow reconsidering the usual ways of organizing lexical material in the process of teaching a foreign language. In accordance with the hypothesis put forward by the presented study, models for a self-developing mental lexicon formation are proposed.