bluuebunny/crossref_metadata_2025 huggingface dataset:
Methods of the Earth orientation parameters prediction in the IAA RAS 220
Authors:   Institute of Applied Astronomy of the Russian Academy of Sciences, Gribanova M. S.
Published: October 2024

This paper presents testing and approbation results of the various methods of the Earth orientation parameters prediction used in the IAA RAS. This methods are autoregressive integrated moving average, local approximation, BayesianRidge. A brief overview of theoretical foundation has been given. The results and their accuracy are shown in comparison with the results of IERS. The analysis of the speed and complexity of the methods has been given.
Application of InSAR technology in observing deformations of engineering structures
Authors:   Ural Federal University, Knyazev A. G. , Lyan Lyu ,   Ural Federal University, Zaripova F. Z. ,   Ural Federal University, Kuznetsov E. D. ,   Ural Federal University
Published: October 2024

Interferometric synthetic aperture radar (InSAR) is a unique method used to observe surface deformations of the Earth and building constructions. The method is based on the use of satellite radar systems, which emit radio waves and measure the time needed to travel to the Earth’s surface and back to the satellite. InSAR data allow to measure small displacements of the Earth’s surface and constructions, opening up the possibility for early detection of potential problem areas. This article deals with the application of data given by the Sentinel- 1A and Sentinel-2A satellites (the European Space Agency Copernicus Programme) in 2018 and 2023. This specific area of interest includes an artificial runway with a length of 3.5 km. The study involves comparing and contrasting the results of InSAR observations with the results of deformation employing the automatic total station.
Astronomy in St. Petersburg University in XVIII—XIX centuries
Authors:   Saint Petersburg State University, Krayani H. A. ,   Saint Petersburg Polytechnic University
Published: October 2024

The development of astronomy in the St. Petersburg University from its foundation until the XX century is briefly considered. The most important achievements of University astronomers during those times are outlined.
Numerical MHD simulations of the molecular filament evolution
Authors:   Chelyabinsk State University, Sultanov I. M. , Khaibrakhmanov S. A. ,   Chelyabinsk State University,   Saint-Petersburg State University
Published: October 2024

We study evolution of cylindrical molecular clouds (filaments). We consider clouds without magnetic field and with parallel magnetic field. The cloud rapidly collapses along it’s radius without fragmentation in simulations with mass per unit length equal or great than the critical one. The radial collapse of the cloud is stopped by the pressure gradient in the simulations with linear mass that is less than the critical, and cores with high density form at the cloud’s edges during further evolution. Cores also form in simulations with parallel magnetic field. According to our results, the cores observed at the edges of molecular filaments can be a result of the evolution of the filament with linear mass less than critical or with parallel magnetic field.
Examination of azimuthally-averaged surface brightness profiles of the spiral arms using decomposition
Authors:   The Central Astronomical Observatory of the RAS at Pulkovo, Chugunov I. V. , Marchuk A. A. ,   The Central Astronomical Observatory of the RAS at Pulkovo,   Saint Petersburg State University
Published: October 2024

We analyze the contribution of spiral arms to the azimuthally-averaged surface brightness profiles of galaxies’ using results of the decomposition of 29 galaxies in the infrared. We show that spiral arms contribution to the galaxy luminosity varies strongly with the galac- tocentric distance. We obtain the characteristic values of the “bump” height on the galaxy’s azimuthally-averaged profile which is caused by the spiral arms. Our results can be applied for the rough estimates of axisymmetric components’ share in galaxy’s light, which is important for determination of disk parameters based on azimuthally-averaged profiles, or for analysis of the spectral energy distribution in galaxy.
Search for bright massive stars in the NGC6946 galaxy
Authors:   Special Astrophysical Observatory of the RAS, Sholukhova O. N. , Tikhonov N. A. ,   Special Astrophysical Observatory of the RAS, Solovyeva Yu. N. ,   Special Astrophysical Observatory of the RAS, Sarkisian A. N. ,   Special Astrophysical Observatory of the RAS
Published: October 2024

The results of a search for massive luminous stars in the NGC 6946 galaxy are presented. Using the 6-meter telescope of the SAO RAS, spectra of 8 candidates were obtained. Two stars have the (J203455.57+601055.4 and J203448.52+601054.5) emission line spectra. Object J203455.57+601055.4 exhibits CIII+NIII and HeII lines characteristic of WR clusters, single WR stars or Luminous Blue Variables (LBVs) in a hot state. The star J203448.52+601054.5 was classified as a cool LBV candidate based on observed emission lines of hydrogen, HeI, FeII and (FeII).
Electrochemical sensor for the detection of serine β-lactamase catalytic activity
Authors: Shumyantseva Victoria V. , Bulko Tatiana V. , Presnova Galina V. , Grigorenko Vitaly G. , Rubtsova Maya Yu.
Published: October 2024

A new approach is proposed based on the use of electrodes modified with carbon nanomaterials to determine enzymatic activity and screening for inhibitors of serine β-lactamases such as extended spectrum β-lactamases (ESBLs). These enzymes are responsible for the development of antibiotic resistance of pathogenic bacteria to β-lactam antibiotics. Electrochemical oxidation of cephalosporin antibiotic cefotaxime was effectively registered at a potential E from +596 to +625 mV (relative to Ag/AgCl). This property makes it possible to determine the change in cefotaxime concentration in solution upon interaction with serine β-lactamases. By analyzing the electrochemical characteristics of the cefotaxime oxidation reaction, the kinetic parameters of its hydrolysis catalyzed by the serine β-lactamase CTX-M-116 were determined. The Michaelis constant was KM = 50 µM and the maximum rate of the catalytic reaction was 1.67∙10–6 M/min. A comparative analysis of the electrochemical parameters of the enzyme/substrate cefotaxime and enzyme/substrate cefotaxime/inhibitor sulbactam (SBT) systems was carried out. Inhibition of β-lactamase by sulbactam was characterized by an IC50 value of 2.5 μM. The proposed approach can be used for screening new substrates and inhibitors of β-lactamases.
Non-destructive weight prediction model of spherical fruits and vegetables using U-Net image segmentation and machine learning methods
Authors: Koç Savaş , Kayra Halil
Published: October 2024

Artificial intelligence has become increasingly prominent in agriculture and other fields. Prediction of body weight in animals and plants has been done by humans using many different methods and observations from the past to the present. Although there has been extensive research on predicting the live body weight of animals, weight prediction of vegetables and fruits is not widely. As spherical or round-shaped fruits and vegetables are sold by weighing in the fields, markets and greengrocers, it is important to make weight predictions. Based on this, a model was developed to predict the weight of fruits and vegetables such as watermelons, melons, apples, oranges and tomatoes with the data obtained from their images. The fruit and vegetable weights were predicted by regression models using data obtained from images segmented by the U-net architecture. Machine learning models such as Multi-Layer Perceptron (MLP), Random Forest (RF), Decision Trees (DT), Support Vector Machines (SVM), Linear and Stochastic Gradient Descent (SDG) regression models were used for weight predictions. The most effective regression models are the Random Forest and Decision Trees models. For regression training, the best success rates were calculated as 0.9112 for watermelon, 0.9944 for apple, 0.9989 for tomato and 0.9996 for orange. In addition, the results were evaluated by comparing to the studies of weight prediction. The weight prediction model will help to sell round-shaped fruits and vegetables in the fields, markets and gardens using the weights predictions from the images. It is also a guideline for studies that follow the growth of fruit and vegetables according to their weight.
Characterization and Pathogenicity of Botryosphaeriaceae Species Associated with Gummosis, Dieback, Trunk and Branch Cankers of Almond Trees in Türkiye
Authors: Endes Ali
Published: October 2024

Members of Botryosphaeriaceae family with 25 genera and several species are spread over a wide range of lands and climates worldwide. They cause gummosis, decline, dieback and blight on many woody plants. The purpose of present study was to diagnose the pathogens linked to the aforementioned symptoms on almond trees in seven orchards of Yozgat province (Türkiye) with a DSb type climate (Hot humid continental - Köppen Geiger system of climatic classification).These trees indicated and displayed dieback, gummosis trunk and branch canker symptoms. They were identified by cultural and morphological characteristics, and compared by phylogenetic sequencing of the ITS regions, EF-1α and β-tubulin genes with those of other species in GenBank (NCBI). Diplodia seriata, Lasiodiplodia theobromae, Neofusicoccum parvum and Botryosphaeria dothidea were identified in 72 isolates based on the colony and conidial characteristics. Successful pathogenicity tests were carried out on two-year-old almond seedlings of cv: Ferredual using Koch’s postulates. The results validated the identification According to available literature on the subject, identification of B. dothidea was done for the first time on almond trees in Türkiye. Accurate identification, prevalence and incidence of the pathogens are crucial for developing effective disease management strategies to arrest disease outbreaks in Türkiye.
Correlation between auditory thresholds and the response amplitude of otoacoustic emissions in post-COVID-19 adults
Authors: Poffo Camila , Ribeiro Georgea Espindola , Silva Daniela Polo Camargo da
Published: October 2024

ABSTRACT Purpose: to verify the auditory acuity and correlate auditory thresholds of pure tone audiometry (PTA) with transient-evoked otoacoustic emissions (TEOAE) and distortion-product otoacoustic emissions (DPOAE) in post-COVID-19 adults. Methods: an analytical cross-sectional study, conducted between October 2021 and October 2022, with 63 post-COVID-19 adults (age range 20-53 years old). The following were performed: PTA, TEOAE, and DPOAE. The results were presented descriptively, and Spearman’s correlation test was used. Results: no hearing loss was identified. Most frequency bands were present in both emissions tests. There was a negative and significant correlation between the PTA and TEOAE thresholds in the frequency bands of 500-1500 Hz and 1500-2500 Hz on the left and between the PTA and DPOAE thresholds in the frequency bands of 1000, 2000, and 4000 Hz on the right and 1000, 2000, 3000, 4000, 6000, and 8000 Hz on the left. Conclusion: post-COVID-19 adults presented auditory thresholds within normal limits, with a response to TEOAE and DPOAE. There was a negative correlation between TEOAE and DPOAE and the PTA air threshold, indicating that higher PTA thresholds are associated with lower emission response amplitude.
Desenvolvimento e validação de conteúdo do Instrumento de Rastreio da Comunicação - IRC-36
Authors: Queiroga Camila Arruda Manchester de , Queiroga Bianca Arruda Manchester de , Almeida Dayanne Priscila Rodrigues , Cordeiro Ana Augusta de Andrade
Published: October 2024

RESUMO Objetivo: elaborar e validar o conteúdo do instrumento de rastreio da comunicação de crianças de 0 a 36 meses. Métodos: o instrumento possui nove categorias organizadas em cinco domínios estruturados com base nos marcos do desenvolvimento por faixa etária. A pesquisa foi realizada em duas etapas. A primeira englobou a construção dos itens e a validação teórica do conteúdo por sete juízes com expertise na área de linguagem infantil. A segunda englobou a validação empírica pela população-alvo, consistindo na aplicação do instrumento por três fonoaudiólogas a 30 pais em uma escola de Recife-PE. A análise dos dados da primeira etapa voltou-se prioritariamente à verificação da concordância entre os juízes. Na segunda etapa, as aplicadoras apresentaram sugestões para ajustes em alguns itens e os desempenhos das crianças foram estratificados. Resultados: na primeira etapa, foi observado um alto índice de concordância entre os juízes (IVC > 0,90). Na segunda etapa, a estratificação dos desempenhos em quartis confirmou a viabilidade do instrumento para discriminação de crianças com possível risco ou em atenção para alterações da comunicação, bem como crianças com desenvolvimento normal. Conclusão: o processo assegurou a validade de conteúdo do instrumento, com a recomendação de que novas etapas de validação sejam realizadas.
Progress of error typology and self-correction in schoolchildren’s text reading
Authors: Alves Luciana Mendonça , Martins-Reis Vanessa de Oliveira , Freire Laura de Souza Cardoso , Carvalho Isa Mourão , Ribeiro Gabriela de Lima , Carvalho Cecilia Maria Mourão , Labanca Ludimila , Celeste Leticia Correa
Published: October 2024

ABSTRACT Purpose: to verify the progress of error typology and percentage of self-correction in text reading and their association with reading fluency in second/third graders (group 1) and fifth/sixth graders (group 2) and the influence of education level on the typology of errors and percentage of self-correction. Methods: an observational, analytical, and longitudinal study. Altogether, 41 students were assessed during the COVID-19 pandemic regarding text reading fluency, percentage of self-corrections and errors, and error typology. The Wilcoxon and paired t-tests were used to compare means, and Pearson’s and Spearman’s tests for correlations. The p-value was set at p < 0.05. Results: group 1 had a decrease in the percentage of errors and an increase, followed by a decrease, in self-corrections. Group 2 had an increase in the percentage of self-corrections, with no variation in errors. The association analysis revealed that the higher the reading speed, the lower the percentage of self-corrections. In the second assessment, group 1 had more self-corrections than group 2 and, in the third one, group 2 had more errors than group 1. Conclusion: the increase in reading fluency and the decrease in errors occur progressively - unlike self-correction, which varies throughout the school year. However, there is an inverse relationship between speed and self-correction.
Evolução da tipologia dos erros e autocorreção na leitura textual em escolares
Authors: Alves Luciana Mendonça , Martins-Reis Vanessa de Oliveira , Freire Laura de Souza Cardoso , Carvalho Isa Mourão , Ribeiro Gabriela de Lima , Carvalho Cecilia Maria Mourão , Labanca Ludimila , Celeste Leticia Correa
Published: October 2024

RESUMO Objetivo: verificar a evolução da tipologia de erros e porcentagem de autocorreção na leitura de textos, associação com a fluência de leitura em estudantes do 2º/3º ano (grupo 1) e do 5º/6º ano (grupo 2) e influência da escolaridade na tipologia de erros e na porcentagem de autocorreção. Métodos: estudo observacional, analítico, longitudinal. Participaram 41 estudantes, avaliados durante a pandemia de COVID-19, quanto à fluência de leitura textual, porcentagem de autocorreções, de erros e sua tipologia. Utilizaram-se os testes Wilcoxon e T pareado para comparação das médias, Pearson e Spearman para as correlações. O valor de p adotado foi p < 0,05. Resultados: no grupo 1 observaram-se diminuição na porcentagem de erros aumento, seguido de queda, em autocorreções. No grupo 2 observou-se aumento na porcentagem de autocorreções, sem variação em erros. A análise de associação revelou que quanto maior a velocidade de leitura, menor a porcentagem de autocorreção. Na segunda avaliação o grupo 1 apresentou mais autocorreções que o grupo 2 e, na terceira avalição, o grupo 2 apresentou mais erros que o grupo 1. Conclusão: o aumento da fluência de leitura e a diminuição dos erros ocorrem progressivamente, ao contrário da autocorreção, que tem variações ao longo do ano letivo. Porém, há relação inversa entre velocidade e autocorreção.
LEITURA E CONSTRUÇÃO DE IDENTIDADES NA FORMAÇÃO DOCENTE
Authors: Benevides Araceli Sobreira
Published: October 2024

RESUMO O presente artigo constitui-se da análise de discurso de alunos- professores de um curso de formação de professores em serviço. Com o objetivo de analisar o posicionamento que os alunos-professores assumem diante da leitura, através de suas histórias de vida e da visão particular de suas experiências, optamos por uma pesquisa qualitativa, de base interpretativista para realizarmos as entrevistas com 4 alunos dos cursos de Letras e Pedagogia do Programa Especial de Formação Profissional para Professores de Educação Básica - PROFORMAÇÃO, da Universidade do Estado do Rio Grande do Norte/UERN. Os resultados indicam que, embora não haja uma atividade de leitura reflexiva sobre os conteúdos lidos na formação, os alunos-professores identificam-se e se posicionam como sujeitos- leitores. Baseados nas teorias sobre letramento (BARTON, 1994), na concepção não-essencialista da formação/constituição das identidades (WOODWARD, 2001) e nas teorias sobre formação de leitores docentes (BATISTA, 1998), concluímos que a formação docente precisa ser repensada no sentido de se destacar o papel da reflexão crítica (CLARK, 1995) sobre o processo de formação do qual o aluno- professor faz parte.
TRADUÇÃO AUTOMÁTICA DE ABSTRACTS: AVALIAÇÃO DO POTENCIAL E DAS LIMITAÇÕES DE TRÊS FERRAMENTAS DA WEB
Authors: Araújo José Paulo de
Published: October 2024

RESUMO Este artigo avalia se as ferramentas de tradução automática disponíveis gratuitamente na Word Wide Web podem ser úteis para a tradução de abstracts. O corpus se compõe de nove resumos das áreas biomédica de engenharia e de literatura.
PAUSA EM TEXTOS ORAIS ESPONTÂNEOS E EM TEXTOS FALADOS
Authors: Silva Maria da Conceição Fonseca
Published: October 2024

RESUMO A proposta deste estudo é investigar em que posições as pausas podem ocorrer em textos orais espontâneos e em textos lidos oralmente e quais as funções das pausas. A partir do trabalho de Cruttenden (1986) e de alguns conceitos do campo epistemológico da Análise do Discurso de linha francesa, levantamos a hipótese de que, além de indicarem fronteira de grupos entonacionais e de serem tomadas como fenômeno de hesitação, as pausas são formas materiais da língua que funcionam como “sítios de significância” e de identidade.
VÍTIMAS E VILÃS, “MONSTROS” E “DESESPERADOS”. COMO O DISCURSO JUDICIAL REPRESENTA OS PARTICIPANTES DE UM CRIME DE ESTUPRO
Authors: Figueiredo Débora de Carvalho
Published: October 2024

RESUMO A forma como as mulheres vítimas de estupro são tratadas pelo sistema judiciário é vista por muitas pesquisadoras como dura e discriminatória, chegando a ser comparada com “uma reprodução da violência de gênero” (PIMENTEL e PANDJIARJIAN, 2000), ou com um “estupro duplo” (ADLER, 1987). O presente artigo explora uma dimensão específica deste “estupro duplo”: o discurso usado em decisões de apelação (acórdãos) em julgamentos de estupro. Este estudo investiga como as estruturas lingüísticas e discursivas presentes nas decisões de apelação contribuem para a reprodução da violência de gênero observada em sentenças de julgamentos de estupro. A análise dos dados indica que as decisões de apelação em casos de estupro retratam o evento e seus participantes de formas distintas, dependendo de como a agressão sexual é descrita e categorizada pelos juízes de apelação. Esse sistema de classificação reflete e constrói uma gama de mitos sexuais e pressupostos ideológicos sobre como homens e mulheres se comportam e se relacionam, e determina a distribuição de culpa, disciplina e punição, e quem é escalado para os papéis de “vítima” e de “vilão”. Os resultados desta investigação são relevantes para a grande área da Lingüística Aplicada, particularmente para a área do discurso jurídico, uma área em franco crescimento internacional, mas que ainda apresenta poucos trabalhos de pesquisa e poucas publicações no Brasil.
INFLUÊNCIA DE SUBLINHAS CENTRAIS E PERIFÉRICAS NA PRODUÇÃO DE RESUMOS INFORMATIVOS
Authors: Rauen Fábio José
Published: October 2024

RESUMO Neste artigo, verifica-se a influência da aposição de sublinhas em cópias de quatro artigos de Ciência Hoje na elaboração de vinte resumos informativos produzidos por cinco estudantes de Pedagogia. Os resultados demonstraram que: a) o percentual de utilização das sentenças sublinhadas superou o de utilização das sentenças não - sublinhadas; b) o percentual de utilização das sentenças centrais sublinhadas superou o de utilização das sentenças periféricas sublinhadas; c) os resumos foram escritos predominantemente por estratégias de cópia acrescida ou não de apagamento(s) e paráfrase(s) simples; e, d) os resumos foram influenciados pela forma do sublinhado (integral, clausal e lexical). O artigo, por fim, discute algumas implicações dos resultados para a pesquisa e o ensino com resumos escolares.
DESAFIOS PARA UMA ANÁLISE DO DISCURSO (E PARA O ENSINO?)
Authors: Voese Ingo
Published: October 2024

RESUMO Neste trabalho discutem- se alguns problemas da Análise do Discurso. A análise do texto aqui realizada tem o propósito duplo de expor uma metodologia de AD e de abrir espaço para futuras reflexões sobre a possibilidade de tal tipo de atividade trazer benefícios ao ensino nos níveis fundametal e médio.
UM MERGULHO NO “CORAÇÃO DAS TREVAS”: LEITURA DA CENA DO ENFORCAMENTO, EM QUINCAS BORBA
Authors: KAMEDA ANDRÉ TADAO
Published: October 2024

Resumo: O objetivo deste artigo é analisar o episódio do enforcamento de um escravizado, em Quincas Borba (1891), e oferecer uma possível interpretação de seu papel para a compreensão global do romance. A conjunção de capitalismo e escravidão parece operar na passagem em diversos níveis, tanto na subjetividade das personagens como nos tempos e na voz narrativa.
Contingency plans and state coordination in the COVID-19 pandemic
Authors: Ferreira Ana Cassia Cople , Lima Luciana Dias de
Published: October 2024

ABSTRACT The article analyzes the role of the states in coordinating the response of the Unified Health System (SUS) to the COVID-19 pandemic. This documentary research was based on the 26 state contingency plans published between February 2020 and October 2021. The state governments acted in most dimensions analyzed: health emergency coordination, federative articulation, regulation, technical support, communication, integrated planning, service provision, financing, and cooperation. The results suggest the leading role of state governments in SUS management, emphasizing the search for integration, alignment, and cooperation between the sectors involved, besides decision-making based on scientific guidance and evidence. In a context of polarization and federative dispute, the state experience valued federative autonomy, a cooperative stance, and the institutional capacities in the SUS.
Izrael újabb háborúja Gázában – a Hamász közigazgatási kihívásai
Authors: Tomolya János
Published: October 2024

A gázai 50 napos háború Izrael és a Hamász között tipikusan az aszimmetrikus hadviselés jegyeit viseli magán. A háborút ezúttal a Hamász nemcsak rakétatámadásokkal provokálta ki, hanem három izraeli fiatal megölésével.
A terrorizmus sajátos formája Törökországban
Authors: Szuhai Ilona
Published: October 2024

Törökország több évtizede prioritásként kezeli a terrorizmust. Napjainkban is aktívak a szeparatista és a szélsőséges csoportok az országban. A legjelentősebb szeparatista szervezet a Kurd Munkáspárt (török nevének betűszava: PKK), amelyet terrorszervezetként tart nyilván Törökország mellett az EU és az USA is. A PKK-n kívül több kisebb baloldali terrorcsoport is jelen van az országban. Ezek közül a legfontosabb a Forradalmi Népi Felszabadítási Párt/Front – DHKP-C, amely 2013-ban egy súlyos, halálos áldozatokkal járó öngyilkos robbantást hajtottvégre az ankarai USA nagykövetség ellen, az indokolás szerint a csoport az USA külpolitikája ellen lépett fel a támadással. A vallási alapú terrorszervezetek 2001. szeptember 11. után kerültek a középpontba. Törökországban mintegy 10 ilyen szervezet ismert.
A kiterjesztett valóság és a robotok alkalmazási lehetősége
Authors: Székely Zoltán
Published: October 2024

Napjainkra a kiterjesztett valóság megjelenítésének népszerű módja az okosszemüveg lett. Ugyanakkor nem szabad elfelejtenünk, hogy a kiterjesztett valóság bármilyen okosüvegen, tehát olyan többrétegű felületen alkalmazható, amely részben vagy egészben átlátszóvá tehető elemekből áll (US 20060196613 A1 számú szabadalom). Jelen tanulmány elsősorban a ma divatos okosszemüvegek alapján magyarázza a kiterjesztett valóság alkalmazási lehetőségeit.
Az intergrált határellenőrzési rendszer létrehozására irányuló törekvések Törökországban
Authors: Kovács Gábor
Published: October 2024

2010-ben lehetőségem nyílott „Az integrált határigazgatási rendszer létrehozása” EU-s Twinning program keretében Törökországban tölteni másfél évet. Munkavégzésem során szembesültem a robbantásokkal, a rendőrjárőrök elleni merényletekkel, a sportoló rendőrök elleni támadással, a határőrőrsök megtámadásával és a katonák lemészárlásával. Ezen alatt az idő alatt sikerült tanulmányoznom Törökország államhatárainak őrizetében résztvevő szervezetek feladatrendszerét, amely szervezetek szerepe rendkívül meghatározó az ország biztonsága szempontjából.
Izrael újabb háborúja Gázában
Authors: Tomolya János
Published: October 2024

Az izraeli–palesztin konfliktus-sorozat 2014. augusztus 26-án zárult le. A Hamász, tanulva a korábban elszenvedett vereségeiből, változtatott taktikáján és ezúttal egy, a gázai környezethez jól alkalmazkodó aszimmetrikus hadviselési formát választott. Izrael, kihasználva abszolút légi fölényét, tűzerőben, kiképzettségben és haditechnikában meglevő döntő fölényét, azzal a céllal indította be az Erős Szikla hadműveletet, hogy felkutassa és megsemmisítse a zsidó államra fenyegetést jelentő alagút-rendszert. Még ha a Hamász terrorista erői és a vele szövetséges terrorista csoportok jobban harcoltak, jobb fegyverekkel és felszereléssel rendelkeztek, jobb katonai teljesítményt nyújtottak is, képtelenek voltak elkerülni a vereséget az izraeli elit erőkkel szemben.
Választott a MTA HB köztestületi tagsága
Authors: Kovács László
Published: October 2024

2014 őszén, a korábbi hároméves ciklus lezárása keretében, új összetételű bizottságot választott a Magyar Tudományos Akadémia IX. Gazdaság- és Jogtudományok Osztályának Hadtudományi Bizottsághoz (HB) tartozó köztestületi tagság. A több mint 300 fős köztestületi tagság magas részvétel mellett választott új összetételű bizottságot. A Hadtudományi Bizottság 33 fős, amelynek - a PhD-fokozattal rendelkezők mellett - tagja lett három akadémikus és 15 MTA doktora is.
Az aszimmetrikus hadviselés során alkalmazandó eljárások, eszközök és módszerek
Authors: Padányi József
Published: October 2024

Az Egri csillagok című regény egyik izgalmas jelenete azt írja le, amikor 1541-benvonulnak Budára a török csapatok és Gábor pap kísérletet tesz egy összpontosítotttöltet segítségével a szultán felrobbantására. Mi más ez, ha nem a felszabadító harcegy klasszikus eleme, amikor a honvédők váratlan támadást hajtanak végre. Nincstehát új a nap alatt.
A COIN-műveletek afrikai tapasztalatai
Authors: Besenyő János
Published: October 2024

A nyugat-szaharai konfliktusnak is volt egy aszimmetrikus része, amely 1975-től 1991-ig tartott. Nyugat-Szahara éghajlata száraz, sivatagi. Felszíne jórészt kősivatag, kisebb-nagyobb dombokkal. A világ egyik legszegényebb, de ásványi kincsekben igen gazdag térsége. Az őslakosság mintegy 290 ezer fő, és kb. 155 ezer fő van menekült-táborokban
Az aszimmetrikus hadviselés hadtudományi kérdései
Authors: Háber Péter
Published: October 2024

Az aszimmetrikus hadviselés kapcsán leggyakrabban a felkelés elleni harccal találkozunk, amely addig tart, amíg egyik fél ki nem fárasztja a másikat. Az aszimmetrikus hadviselés tulajdonképpen a hadtudománynak és a hadviselésnek egy sajátos területe, amibe nagyon sok minden beletartozik. A reguláris erők is folytathatnak egymás ellen aszimmetrikus hadviselést, tehát a fogalom nem korlátozható a felkelők vagy a terroristák elleni harcra. A problémával már Szun Ce is foglalkozott időszámításunk előtt 500-ban. 2000 évvel később, egy 20. századi teoretikus az aszimmetrikus hadviselés lényegét 6 pozitív és 2 negatív kijelentésben fogalmazta meg.
Globalizáció és a felkelés elleni műveletek
Authors: Jobbágy Zoltán
Published: October 2024

Az aszimmetrikus hadviselés, mint a háború egyik megjelenési formája, valóság volt Irakban és valóság Afganisztánban, ezért a vonatkozó szakirodalom a reneszánszát éli. A NATO hivatalos terminológiájában jelenlegi megnevezése: felkelés elleni művele-tek (counterinsurgency). Az iraki és afganisztáni fegyveres konfliktusokra válaszul, 2006-ban az Amerikai Egyesült Államok szárazföldi hadereje a tengerészgyalogsággal közösen kiadta az FM 3-24 Counterinsurgency tábori kézikönyvet.
Coleophora texanella Chambers, 1878, a new alien species in Hungary (Lepidoptera: Coleophoridae)
Authors: Tóth Balázs , Dombi Orsolya , Takács Attila
Published: October 2024

Coleophora texanella Chambers, 1878 (Lepidoptera: Coleophoridae), endemic to the Nearctic Region, is reported from Hungary for the first time. Adult habitus, genitalia and larval case are illustrated.
New species and new records of Alophophion Cushman, 1947 from Argentina and Chile (Hymenoptera: Ichneumonidae)
Authors: Vas Zoltán
Published: October 2024

Two new species of the Neotropical genus Alophophion Cushman, 1947 (Hymenoptera: Ichneumonidae: Ophioninae) are described: Alophophion lendli sp. nov. from Argentina, and Alophophion mahunkai sp. nov. from Chile. Additionally, Alophophion mapuche Alvarado, 2014 is reported for the first time from Argentina.
Surgical Approach and Recurrence Risk in Struma Ovarii: A Retrospective and Systematic Analysis
Authors: Ao Miao , Wu You , Huo Zhiping , Zhang He , Mao Wei , Li Bin
Published: October 2024

Struma ovarii (SO) represents a rare subset of ovarian germ cell tumors, with approximately 5% transforming into malignant SO (MSO). This study retrospectively analyzed clinical data from 23 SO patients treated at the Cancer Hospital of the Chinese Academy of Medical Sciences between January 2013 and December 2023, including 17 benign SO and 6 MSO cases. Additionally, a systematic review of 164 cases of MSO confined to the ovary, reported in the literature from 1946 to 2024, was conducted. Data on pathological type, treatment, and prognosis were extracted, and univariate and multivariate Cox regression analyses were performed to identify risk factors for recurrence in stage I MSO. The median age at diagnosis was higher for benign SO compared to MSO (58 vs. 42.5 years), with 70.6% of patients being postmenopausal. Benign SO commonly presented with abdominal distension or mass, with more than half having ascites, while MSO patients were asymptomatic and lacked ascites. Cox regression analyses revealed that ovarian cystectomy was adversely associated with recurrence risk in stage I MSO, likely due to surgically induced capsular rent and potential tumor spillage. Significantly lower recurrence risks were observed in patients who underwent unilateral or bilateral salpingo-oophorectomy (HR = 0.36, P = 0.019; HR = 0.19, P = 0.004, respectively). This study highlights the importance of the surgical approach in the management of stage I MSO. A thorough preoperative discussion of the benefits and risks of different surgical approaches is recommended for patients desiring fertility preservation. Postoperative adjuvant therapy has not been shown to have a significant impact on prognosis. For the treatment of recurrent MSO, selecting appropriate surgical and adjuvant therapeutic strategies is essential to improve the long-term prognosis of MSO patients.
A New General Integral Transform of Modified Laguerre’s Polynomial 𝐿𝐚,𝐛,𝐜,𝐧(𝑡)
Authors:   Assistant Professor, Department of Mathematics, R.B. Narayanrao Borawake College, Shrirampur, Maharashtra, India, Jagtap R R , Andhare P G , Gaikwad S B
Published: October 2024

Objectives: The core objective of this paper is to introduce the explicit Modified Laguerre polynomial 𝐿𝑎,𝑏,𝑐,𝑛 (𝑡) and obtain a new general integral transform of Modified Laguerre’s Polynomial, by using this general transform, some transforms of Laguerre’s Polynomial are identified as special cases. Method: We derive transforms of the polynomials 𝐿𝑎,𝑏,𝑐,𝑛 (𝑡), 𝐿𝑛 (𝑡) by using this new integral transform approach and found the transforms like Laplace, 𝛼-Laplace, Sawi, Elzaki, Sumudu, Natural, Aboodh, Pourreza, Mohand, G_transform, Kamal transforms and their relationship for the same. Findings: A new general integral transform of the Modified Laguerre’s Polynomial 𝐿𝑎,𝑏,𝑐,𝑛 (𝑡) has been obtained, and a special case for the polynomial 𝐿𝑛 (𝑡) has been derived by using this transform. Novelty: This is a novel general integral transform for this polynomial and by applying this transform to the Modified Laguerre’s polynomial as special transform cases like Laplace, 𝛼-Laplace, Sawi, Elzaki, Sumudu, Natural, Aboodh, Pourreza, Mohand, G_, Kamal, Sumudu, Elzaki, Natural, and Pourreza are obtained. Keywords: Modified Laguerre polynomial; Laguerre polynomial; A New Integral Transform; Laplace Transform; Sumudu Transform
Mathematical Modeling of Dengue Disease Transmission Dynamics
Authors:   Research Scholar, Department of Mathematics, Rabindranath Tagore University, Bhopal, Raisen, 464993, Madhya Pradesh, India, Kumar Rakesh , Saxena Bharti , Shrivastava Ritu , Bhardwaj Ramakant
Published: October 2024

Objectives: This study developed a compartmental ordinary differential equation model to investigate dengue transmission dynamics within a human population. The model stratified the population into susceptible, exposed, infected, and recovered classes, incorporating key epidemiological factors. Methods: Model equilibrium analysis was conducted to determine the stability of disease-free and endemic states. The basic reproduction number (R₀) was calculated to quantify the potential for disease spread. Additionally, sensitivity analysis was performed to assess the impact of key parameters on model outcomes. Findings: Results indicate that reducing mosquito biting rates and increasing human recovery rates are effective strategies for controlling dengue transmission. The model exhibits backward bifurcation, suggesting that even when R₀ is less than one, the disease can persist in the population under certain conditions. Novelty: This study presents a novel modeling framework that can inform the development of targeted prevention and management strategies for dengue. Keywords: Dengue, Mathematical Model, Ordinary differential equations, Basic reproduction number, Sensitivity analysis
PV Based Single Stage Cascaded Seven Level Modular Multilevel Converter with ZSV Control for Grid Interfaced System
Authors:   PG Scholar, Department of Electrical and Electronics Engineering, Arasu Engineering College, Affiliated to Anna University, Tamil Nadu, India, Ananiya P , Pazhanimurugan R , Kalpana K , Nivedha M
Published: October 2024

Objectives: Climatic perturbation and environmental factors affect solar power generation. When these solar panels are connected to the grid it causes power quality issues such as voltage harmonics, voltage distortion, etc. These problems are addressed in this paper using a distributed MPPT algorithm. Methods: Multilevel inverters have made remarkable contributions to renewable energy, high voltage, and other high-power applications. Hence, a single-stage Cascaded Seven-Level Modular Multilevel Converter (CSLMMC) is used to address the issues. Zero Sequence Voltage (ZSV) control is proposed for producing balanced power during varying irradiance conditions. The proposed method is simulated using MATLAB SIMULINK software. Partial shading is conquered by using distributed MPPT. Findings: The simulation of the proposed system is performed for a three-phase system. The three-phase Cascaded Modular Multilevel Converter is connected to the grid through two loads which are controlled by a Zero Sequence Voltage Controller. Power quality parameters such as current, harmonics, and power are analyzed for the proposed system. Novelty: THD analysis for a five-level cascaded H bridge converter and the proposed systems are compared and presented. Keywords: Photo voltaic, Cascaded seven-level modular multilevel converter, Zero sequence control, Maximum power point tracking, Voltage Source Converter
To Analyse Energy of the Electric Circuit by Using Neutrosophic Labelling
Authors:   Research Scholar, Department of Mathematics, Mother Teresa Women’s University, Kodaikanal, Tamil Nadu, India, Logasoundarya S T , Vimala S
Published: October 2024

Objectives: Neutrosophic labeling was used in electric circuits for evaluating energy. Methods: Defuzzification method, was applied to the neutrosophic labeling circuit graph which produces crisp values. Findings: The energy of the electric circuit is equal to the energy of the neutrosophic applied electric circuit. Novelty : Neutrosophic Fuzzy Labeling values are converted into crisp values using Defuzzification Graded Mean Integration Method. Keywords: Labeling, Neutrosophic Labeling, Electric circuit, Kirchhoff law, Energy
Effect of Morphology and Concentration of CeO2 Nanoceria on the Thermal Stability of Polyvinyl Alcohol Films
Authors:   Associate Professor, Department of Physics, Maharani’s Science College for Women, Bengaluru, 560001, Karnataka, India, Hemalatha K S , Srikanth Chivukula , Madhavi Karanam , Sriprakash G
Published: October 2024

Objective: To determine the thermal stability of polyvinyl alcohol films under different concentrations of CeO2 nanoceria. Method: Cerium Oxide doped polyvinyl alcohol (PVA) nano-composites were synthesized by the traditional solution casting method for various concentrations of nano CeO2 by solution combustion method. The thermal properties of prepared PVA-2.5 wt% CeO2, PVA-7.5 wt% CeO2 , PVA-12.5 wt% CeO2, and PVA-25 wt% CeO2 composite films were elucidated by using techniques such as Differential Scanning Calorimetry, Thermogravimetry analysis and Differential Thermal analysis. Findings: The glass transition temperature of the pure PVA is found to be 114°C, whereas it varies between 110°C-120°C for composite films. The melting temperature of the composite films is the same as that of pure PVA except in the case of 7.5wt% CeO2 and 25wt% CeO2 composites. The reduced melting point of these composites elicits a decrease in crystallinity. A 12.5 wt % and 25 wt% CeO2-PVA nano-composite films exhibit an increase in the final degradation temperature, a high specific heat capacity, low mass loss, and a larger residual weight, indicating their potential applicability in thermal coating and thermal sensing applications. Polyvinyl alcohol (PVA) films are being used routinely as a dielectric layer for electrical applications due to the good physiochemical and dialectic properties of the material. An incorporation of CeO2 nanoceria improves not only the thermal but also the mechanical properties of PVA and extends its application for electrical and optical operation. Here in the present study, different concentrations of CeO2 were incorporated with the PVA and analysed for the thermal properties. The study showed that 12.5 wt % and 25 wt% CeO2-PVA nano-composite enhanced PVA film thermal stability. Keywords: PVA-CeO2 Nanocomposites; Differential Scanning Calorimetry; Thermogravimetry Analysis and Differential Thermal Analysis; Physical properties and thermal properties
Method Development and Validation of Luliconazole Bulk Drug Using Reverse Phase - HPLC Technique
Authors:   Research Scholar, Department of Pharmacy, Faculty of Engineering and Technology, Annamalai University, Annamalai Nagar, 608002, Tamilnadu, India, Indira S Indira , Devi K , Kalvimoorthi V
Published: October 2024

Objective: To develop and validate the RP- HPLC method for determining Luliconazole in bulk and pharmaceutical formulations. Methods: Following the International Conference on Harmonization (ICH) guidelines, a sensitive, accurate, and specific reversed-phase HPLC technique was created and validated for the detection of Luliconazole. Using high-performance liquid chromatography, this drug was examined. A better separation of the drug was achieved by using Agilent Eclipse XDB C (4.6mm x 250mm, 5µm) with a mobile phase consisting of a mixture of Acetonitrile and Buffer in HPLC water. The ratio of 30:70 v/v (Formic acid and Acetonitrile) at a flow rate of 1.0 ml/ min and the detection was at the wavelength 295 nm using a Photodiode Arrays Detector. The planned method was able to produce good quality separation of the drug and its degradation products with sharp peaks. Findings: Luliconazole had a retention time of 2.38 ± 0.127 minutes. The technique was linear in the range of 10-100 µg/ml, with a correlation (r2) of 0.9995 and a run duration of 4 minutes. The method limit of detection (LOD) and limit of quantification (LOQ) were set at 0.1 and 1 g/ml, respectively. The method accuracy and system precision were estimated, and the findings were calculated as percentage RSD values, which were found to be limitations. Luliconazole recovery was 100% confirming the method's efficiency. Novelty: The presented approach was innovative and successfully fulfilled all validation requirements, including linearity, robustness, accuracy, reduced retention, and run time. This suggests that the method is appropriate for identifying the stability of luliconazole in bulk and pharmaceutical formulations. Keywords: RP-HPLC, Transferosome, ICH guidelines, Validation, Luliconazole
Synthesis, Optical, Electrical, Fluorescence, Dielectric, Thermal, and Mechanical Characterization of 3-Aminopyridine (Scaffold in Drugs) Single Crystal
Authors:   Research Scholar (Reg No: 21111062132003), PG and Research Department of Physics, Kamarajar Government Arts College, (Affiliated to Manonmaniam Sundaranar University), Surandai, Tenkasi Dt, 627859, Tamil Nadu, India, Shubashini I , Jebas S Robinson
Published: October 2024

Objectives: To screen the optical, electrical, fluorescence, dielectric, thermal, and mechanical behavior of the 3-aminopyridine single crystal for its suitability in optoelectronic applications. Methods: A good single crystal of 3-aminopyridine (3-AP) was grown by the slow evaporation method. Findings: The lattice parameters of the grown crystal were determined using a single crystal X-ray diffractometer as, a = 6.184 (4) Å, b = 15.350 (6) Å, c = 5.361 (7) Å and the required functional groups C-N, NH2 bonds of 3-AP were recognized by the FTIR studies. The grown crystal was screened using the UV-Vis-NIR spectrum to understand the transmission and absorption character of the crystal. The various optical constants such as absorption coefficient, optical conductivity, and electrical conductivity of the crystal have been determined from the UV-Vis transmission plot. The lower cut-off wavelength of the 3-AP crystal was observed at 250 nm. The band gap of the grown crystal is found to be 4.5 eV. The emission property of the crystal was studied using fluorescence spectra. Violet, blue, and red emissions are observed from the fluorescence spectra. Thermal screening of the 3-AP crystal was performed using TGA and DTA. The 3-AP crystal remains stable up to 220 ºC and then the crystal begins to decompose up to 260 ºC due to the loss of the -NH2 group of the 3-aminopyridine. The Vickers hardness test revealed the nature of the material as soft type with Meyer’s index (n) of 2. The electronic polarization behavior of the crystal was examined using the dielectric study. Novelty: The lower cut-off wavelength of 250 nm, wide band gap of 4.5 eV, excellent transparency in the entire visible and near-infrared region, violet, blue, and red emission by the material are the distinguishing and mandatory features for optoelectronic applications. These features are good as compared to the 3-AP derivatives reported earlier. Keywords: Unit cell, Absorption, Emission, Conductivity, Strength, Loss
Exploring Mean Cordial Labeling Possible Combination Position of Vertices in Graphs: A Computational Approach
Authors:   Associate Professor, Department of Mathematics, Sri Paramakalyani College, Alwarkurichi, Affiliated to Manonmaniam Sundaranar University, Tirunelveli, 627412, Tamil Nadu, India, Sasikala C Muthulakshmi @ , Nivetha A Akil
Published: October 2024

Objectives: We have developed the Python module of mean cordial labeling for the different types of graphs, like Path, Cycle, and Subdivision of Star graphs. We aim to identify the number of combination positions of vertices that satisfy the mean cordial labeling rules. We have found mathematical equations that describe the labeling behavior in these graphs. Methods: In this paper, a Python program was developed to find the mean cordial labeling of the Path, Cycle, and Subdivision of the Star graph. We have obtained the number of combination positions of vertex obeying the mean cordial labeling condition using this Python module. We have drawn the graph between the number of vertices and the number of combination positions of the vertex. Findings: We have found that the different graph types like Path, Cycle, and Subdivision of Star graph satisfy the mean cordial labeling condition. The result indicates that the number of combination positions of the Path and cycle graph fulfill the power equation Y=a*xb and the Subdivision of the Star graph meets the exponential growth equation Y=a*bx. Novelty: In this paper, a new method has been developed to find the number of combination position of varies graphs using the Python module. This computational approach will be useful to analyze the biological networking and protein-protein interaction study. Keywords: Mean Cordial, Path, Cycle, Subdivision of Star graph, Computational graph theory
Neighborhood Residents in Vulnerable Circumstances: Crisis, Stress, and Coping Mechanisms
Authors: Tuominen Pekka , Smets Peer
Published: October 2024

The editorial introduces the articles in this thematic issue, which provides a multifaceted analyses on how residents of vulnerable neighbourhoods cope with stressful circumstances and various crises. The aim is to understand daily survival at the neighbourhood level amid rapidly changing conditions. The articles present both quantitative and qualitative analyses that make detailed observations of agency, resilience, and community in diverse sociocultural contexts.
Ukrainian Community in Berlin (1991–2015)
Authors:   Ivan Franko National University of Lviv, Lviv, Ukraine, Markhvinskyi Ivan
Published: October 2024

Berlin, which is a separate federal state in Germany, has been considered one of the largest multicultural cities in the world in recent decades: it is home to numerous diasporas from different parts of the world (the Middle East, Asia, Africa, Latin America, and Southern and Eastern Europe), which largely shape its modern face. Since 1991, the Ukrainian community, which had been virtually unrepresented in the city divided after the Second World War, has also gained an important place in Berlin. Ukrainians arrived in the city for various reasons and purposes: repatriation of ethnic Germans and their families, emigration along the Jewish line, family reunification, job search, study, illegal immigration, etc. As a result, Ukrainians now have a number of their own organisations, cultural and religious centres here, and Berlin itself, along with Munich, is considered one of the most important Ukrainian centres in Germany. The purpose of the study is to analyse Ukrainian migration processes in 1991–2015 and the situation of the Ukrainian community in Berlin. Accordingly, the main objectives of the study are to examine the dynamics of the Ukrainian community in the city, to identify the main aspects of the migration movement of the new wave of Ukrainian emigration, its integration into German society, and to highlight the social and cultural life of Ukrainians in the German capital.