bluuebunny/crossref_metadata_2025 huggingface dataset:
The role of the United Nations in protecting the right to development in occupied Palestine
Authors: Alasttal Abdelrahman , Magassing Abdul Maasba , Maskun Maskun , Sakharina Iin Karita
Published: May 2023

Talking about human rights in the absence of development is nonsense. Therefore, Palestinian human rights are deficient due to the disruption of development in the occupied Palestinian territories. The purpose of this study is principally to analyze the obstacles to the development process in Palestine, examine the scope of the role of the United Nations in supporting development in Palestine under Israeli occupation, and compare that with its role in Rakhine. The methodology refers to a comparative analytical study and a statutory and conceptual approach, revealing that the existence of the Israeli occupation is considered the main obstacle to development in Palestine; and the role of the United Nations has been ineffective to date in ending this occupation; therefore, the role of the United Nations in protecting the Palestinians' right to development is very limited, as the realization of the right to development is linked to the realization of the right to self-determination for the Palestinian people. Development requires the unification of regions and the optimal exploitation of natural resources, but this is not possible in Palestine because of the policies of the Israeli occupation in building settlements, imposing a complete blockade on the Gaza Strip and separating it from the West Bank, and dividing the West Bank into areas of influence, as well as imposing complete control over the natural resources and preventing the Palestinians from benefiting from them, with the aim of keeping the Palestinian economy weak and under Israeli control, thereby keeping the Palestinian decision under the influence of Israel. In conclusion, the role of the United Nations is ineffective in supporting development in Palestine and Rakhine, due to the inability of the Security Council to take any effective action due to the disagreement of the permanent members.
Women about Women: Genderlect Manifestations through Positive and Negative Self-Stereotypes in Contemporary Fiction
Authors: Bohovyk Oksana , Bezrukov Andrii , Yashkina Victoriia
Published: May 2023

The article re-actualises genderlect as one of the key points of male-female differentiation and a  relevant object in the humanities, not merely from the perspective of gender studies but linguistic and literary ones. Self-stereotypes in the speech of one or another gender may be considered the result of the complex interaction of collective identity and the subconscious. The excerpts from the selected novels by Salman Rushdie, Jennifer Crusie, Lisa Kleypas, Aleksandar Hemon, Zadie Smith and Candace Bushnell have provided a wide range of patterns of expressing self-stereotypes in the dimension of ‘women about women’. To emphasise the multicultural nature of genderlect self-stereotypes, the writers of different ethnic affiliations are represented. The article also classifies the criteria of self-stereotype polarisation in characters’ speech to explicate the strategies of women’s verbal behaviour. These criteria include marital status, maternal experience, professional activity, ageism and harassment. The impact of gender on verbal behaviour, observed in real life and adapted to fiction through literary representation, is manifested in communication stereotypes. This serves to illuminate the most representative speech self-stereotypes, which make certain images or ideas easier to interpret. The application of an interdisciplinary approach with a set of appropriate methods to theorising and practising genderlect reveals its role as a significant tool for reconstructing a linguistic worldview and contextualises both positive and negative self-stereotypes for the expressive evaluation of speech in fictional discourse.
Implementing Project-Based Learning in English Language Classes – a Case of Kosovar Lower Secondary Schools
Authors: Latifaj Donjetë , Xhaferi Brikena
Published: May 2023

Project-based learning (PBL) is a contemporary educational approach in which students engage in authentic tasks and scenarios while working on various projects. Throughout the process, students are encouraged to participate actively in their learning. Since this methodology is not commonly used in Kosovo, the current study aimed to assess the extent to which information and communication technology (ICT) is utilized during the implementation of PBL in lower secondary English classes in Kosovo. Furthermore, the study aimed to investigate the effectiveness of PBL in enhancing students’ ability to acquire English as a foreign language. The study focused on analyzing teachers’ perspectives on the use of ICT when implementing PBL in English classes. The findings from an online survey show that teachers use ICT to a certain degree when implementing PBL and that a considerable number of teachers are interested in receiving specialized training to enhance their use of technology in future classes. Generally, teachers prefer project-based methods, but PBL is not widely utilized in the Kosovar education system. Finally, teachers and students with a positive attitude towards ICT and PBL are willing to implement them in their school settings.
Culpeper’s Impoliteness Strategies in Neil Simon’s ‘Biloxi Blues’
Authors: Şekerci Ömer
Published: May 2023

Impoliteness has recently been of interest to scholars as a linguistic study in the field of pragmatics. It has emerged as the opposite orientation to politeness strategy, theory and studies. This paper explores how the impoliteness strategies mapped out by Jonathan Culpeper (1996) are employed in dramatic texts. It examines Culpeper’s impoliteness strategies designed to investigate face in the dramatic text. This paper tests the strategies through Neil Simon’s Biloxi Blues (1985). This dramatic comedy is used for three reasons: (1) as a drama, it is a mirror of life and real-life speech events; (2) impoliteness strategies provide a resource to analyse impolite interactions between the characters in dialogic discourse; (3) dramatic texts provide a rich context to interpret and analyse verbal and non-verbal impoliteness strategies. Impoliteness strategies can cause disharmony and conflict between characters in a dramatic text. The interactions exchanged by the characters in Biloxi Blues are analysed according to Culpeper’s five impoliteness strategies: bald on record impoliteness, positive impoliteness, negative impoliteness, sarcasm or mock politeness, and withhold politeness. This study employs a descriptive qualitative method to determine how face-threatening acts are incorporated into the play in line with Culpeper’s impoliteness strategies propounded in his article entitled Towards an Anatomy of Impoliteness (1996). The paper also examines how the characters react to face-threatening acts. In the twelve selected dramatic extracts, seventeen cases of positive impoliteness, ten cases of bald on record impoliteness, eight cases of sarcasm or mock politeness, and four cases of negative impoliteness have been observed. Moreover, it has also been observed that the characters use taboo words and abusive and strong language. The bald on record impolite acts are aggravated mainly by abuses, sexual insults and name-calling strategies. Racial slurs have also been identified as a part of positive impoliteness.
Wpływ zastosowania koncepcji marketingu relacji w przedsiębiorstwie sportowym na poziom wyników sprzedaży jego produktów
Authors:   Uniwersytet Gdański, Polska, Biesiada Michał
Published: May 2023

Koncepcja marketingu relacji polega na budowaniu długotrwałych relacji przedsiębiorstwa ze swoimi klientami na podstawie lojalności klientów i ich satysfakcji z nabywanych przez nich produktów. Przedsiębiorstwo sportowe, które w niniejszym artykule jest rozumiane jako komercyjny klub sportowy, powinno uwzględniać tę kon- cepcję w strategii swojego rozwoju ze względu na to, że istotna część klientów przedsię- biorstwa sportowego – kibiców sportowych – charakteryzuje się emocjonalnym przywią- zaniem do danego przedsiębiorstwa sportowego i wykazuje wobec niego wysoki poziom lojalności oraz chęć nawiązywania z nim długotrwałych i intensywnych relacji. Przed- siębiorstwa sportowe powinny uwzględniać te specyficzne cechy swoich klientów i dzięki wykorzystaniu podstawowego narzędzia marketingu relacji – systemu CRM − powinny kształtować właściwe relacje ze swoimi klientami, co będzie sprzyjać maksymalizacji zysków przedsiębiorstw sportowych ze sprzedaży swoich produktów. Niniejszy artykuł porusza problem badawczy polegający na określeniu wpływu zastosowania koncepcji marketingu relacji w przedsiębiorstwie sportowym na poziom wyników sprzedaży pro- duktów przedsiębiorstwa sportowego. Celem artykułu jest ukazanie wpływu, jaki ma zastosowanie koncepcji marketingu relacji w przedsiębiorstwie sportowym na poziom wyników sprzedaży produktów przedsiębiorstwa sportowego. Metodą badawczą zasto- sowaną w badaniach opisanych w niniejszym opracowaniu jest analiza studium przy- padku. Przedmiotem analizy są działania klubów sportowych w obszarze zarządzania relacjami z klientami klubu sportowego wykorzystujące podstawowe narządzie marke- tingu relacji – system CRM − i wpływ tych działań na uzyskane poziomy wyników sprze- daży produktów analizowanych klubów sportowych. W wyniku przeprowadzonych badań stwierdzono, że zastosowanie koncepcji marketingu relacji w przedsiębiorstwie sportowym w istotnym stopniu wpływa na poziom wyników sprzedaży produktów przedsiębiorstwa sportowego i sprzyja osiąganiu przez przedsiębiorstwo sportowe wysokiego poziomu wy- ników sprzedaży swoich produktów. Słowa kluczowe: marketing relacji, system CRM, zarządzanie relacjami z klientem, przed- siębiorstwo sportowe, klub sportowy, kibic sportowy. Kod JEL: M310, Z21
The human factor in digital marketing: not all so digital
Authors:   Deree – The American College of Greece, Toulis Ioannis
Published: May 2023

This paper investigates how the use of social media has influenced the mar- keting sector globally. By highlighting the human factor-related risks and caveats inhe- rent in digital marketing, this paper suggests the strategy that firms and multinational corporations can apply to mitigate them, and thus cautiously make use of the myriad of benefits ‘hidden’ behind the unexploited potential of digital marketing. This paper is a research project that draws from secondary data gathered in a manner enabling a criti- cal examination and insight into issues and processes specific to digital marketing today. A nested analysis of selected case studies complements the discussion. Apart from its academic merit, this research will be of great value to practitioners as it will help them understand the potential risks and threats posed by the facilitation of social media at the corporate level. It will offer a presentation of the plethora of benefits that it entails, and consequently suggest a strategy that will help corporations get the most out of these versatile platforms. Keywords: digital marketing, marketing strategy, customer relationship. JEL Classification: M310
Problems of Improving the Efficiency of State Programs and National Projects on the Example of the Health Sector
Authors: Shalimov M. B.
Published: May 2023

The article deals with the issues of the effectiveness of the implementation of state programs and national projects. The requirements for the development and implementation of programs and projects, the structure and changes in the amount of funding are considered. The analysis of the results was carried out and the problems of the implementation of programs and projects were identified. The features of the implementation of state programs and national projects in the field of healthcare are considered. Comparisons were made of the goals of state policy and adjustments in the work of authorities in the field of healthcare. Proposals have been developed to improve the efficiency of financing state programs and national projects.
The Formation of Surveillance Capitalism. Review of the book of Sh. Zuboff “The Age of Surveillance Capitalism: The Fight for a Human Future at the New Frontier of Power”
Authors: Karnauh V. K.
Published: May 2023

Зубофф Ш. Эпоха надзорного капитализма : битва за человеческое будущее на новых рубежах власти / Шошана Зубофф ; перевод с английского А. Ф. Васильева ; под научной редакцией Я. Охонько, А. Смирнова. Москва : Издательство Института Гайдара, 2022. 781, [1] с.
Innovative Practice in the Work of Multimedia Journalists
Authors: Kim M. N.
Published: May 2023

In the article the author summarizes innovative practices related to the creation of a multimedia product. For this goal there were studied various parameters of a multimedia text, hypertext and multimedia tools in the transmission of information were identified. Also, the main trends in the transformation of genre forms and formats of multimedia content were spesified, and finally, the main methods of communication between a journalist and their audience were studied. For our research we interviewed journalists of new media, who told about the impact of innovative practice on changing basic professional competencies and methods of their work on multimedia content.
THE EFFECT OF ADDITION GREEN INHIBITOR D-GALACTOSE ON CORROSION RATE OF ALUMINUM ALLOY 5052 IN SULFURIC ACID (H2SO4) MEDIA
Authors: Muhajirin Muhajirin , Arwati I. G. A. , Hartati S. , Hakim H. , Noviyanto Alfian , Arramel Arramel , Zakly T.
Published: May 2023

Aluminum alloy 5052 (Al 5052) is one of the metals used as a bipolar plate in a Proton Exchange Membrane Fuel Cell (PEMFC) due to has its light mass and being easy to form, and, has high conductivity and resistivity properties. This material is prone to corrosion and current knowledge to protect its surface is currently lacking. The product of PEMFC produces electrical energy, hot steam (313 – 353 K), and water. These conditions have an impact on the degraded bipolar plate caused by the acidic nafion membrane. This increases the risk of corrosion on the cathode side of the bipolar plate. Coating with a green inhibitor using the electrophoretic deposition technique (EPD) is one way to deal with the corrosion that occurs. The analysis method used electrochemical with potentiodynamic polarization techniques, electrochemistry impedance spectroscopy (EIS), Fourier-transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). In this study, green inhibitor D-galactose was used with a concentration of 0.5 – 1.5 g and an, EPD time of 15 – 45 minutes in 0.5 M sulfuric acid (H2SO4) media pH 1-4. Potentiodynamic polarization analysis at the lowest corrosion current value (Icorr) at demonstrates (the inhibitor concentration of 1.5 g with an and EPD time of 45 minutes) resulted corrosion rate of Al5052 before EPD was 0.0075 mmPY while the corrosion rate of Al5052 after EPD was 0.0041 mmPY with (inhibitors efficiency 45.2%). The FTIR spectrum, broad peak appeared in the range of 3000-3600 cm-1, which refers to the formation of hydrogen bonding of hydroxyl group. Methyl group of D-galactose also appear on 2918 cm-1 and 2850 cm-1 which attributed to =CH2 asymmetric stretch and −CH3 symmetric stretch, respectively. Carbonyl group on 1500 – 1700 cm-1 represent C=O bond of amide, and aldehyde. Peak 1097 – 1035 cm-1 which attributed to C-O were connected to the secondary and primary alcohols. The resistance value for Al5052 before and after EPD are 1.2 kΩ/cm2 after and 2.2 kΩ/cm2, respectively. Here we find that the resistance increases with the increasing concentration and time of EPD. The results cross section Al5052 within average 29.8 μm, and morphology with SEM Al5052 before EPD showed pitting corrosion. On the other hand, the image of Al5052 inhibitor coating 1.5 gr with EPD of 45 minutes shows a smooth surface and visible black lumps, suggesting Al5052 is successfully reduced a corrosion rate by the D-galactose. Our simple and robust method inferred a protection route towards a viable and physically stable green inhibitors.
COMPARATIVE STUDY USING LOW COST ACETIC AND SULFURIC ACIDS ON ROASTING AND PEROXIDE FOR LEACHING PROCESS TO EXTRACT PB FROM GALENA
Authors: Dahani Wiwik , Sundari Rita , Somali Subandrio , Marwanza Irfan , Ivetta Ivetta
Published: May 2023

This article aims to present the application of acetic acid and sulfuric acid for lead (Pb) extraction from galena concentrate applying roasting (600oC and 60 min.) and peroxide oxidant (0.5 M) for 60 min. leaching process. Nowadays, lead has been broadly applied for batteries, besides for PVC tubes, chemicals, paint color, and alloys for joint.  The peroxide increases the percentage of Pb extraction. This study shows the effect of acid concentrations (1.0 M, 1.5 M, and 2.0 M), temperatures (30, 50, and 70oC), and stirring speed (200, 400, and 600 rpm) on Pb extraction from galena. A particle size of galena ≤ 200 mesh after roasting has been used for leaching process. AAS has been used to determine Pb concentration in solution after leaching process. This study shows that acetic acid is a better leaching agent rather than sulfuric acid due to lead sulfate precipitation. Optimization result shows leaching with acetic acid achieved 35.64 ppm Pb extraction using 2.0 M acetic acid, 50oC, and stirring speed of 200 rpm. The beneficiation of low cost acids as leaching agent is a potential technique for Pb leaching that will be developed for industrial purpose due to its economic reason, simplicity, and fast process.
Um crime monstruozo: o duplo homicídio do Café S. José, em São Luiz, pelo olhar do jornal Pacotilha (1913)
Authors: Jesus Paulo Henrique Matos de
Published: May 2023

Desde a década de 1980, pesquisadores brasileiros – do campo historiográfico ou não – têm se debruçado com afinco sobre fontes criminais, judiciais e policiais, esquadrinhando, a princípio, aspectos da realidade política e sociocultural implícitos nesse conteúdo e, em seguida, investigando as circunstâncias, organismos e os indivíduos que as produziram. Tomando o crime como algo socialmente construído e as fontes como como objeto para a investigação histórica, este artigo busca realizar uma síntese analítico-descritiva, a partir do olhar do jornal Pacotilha e do inquérito policial do “Crime Monstruozo”, ocorrido em São Luís do Maranhão, em 10 de novembro de 1913.
Juventude e ensino de História: desafios metodológicos
Authors: Aguiar Edinalva Padre , Aquino Maria Alessandra dos Santos , Pina Maria Cristina Dantas
Published: May 2023

O presente texto resulta de nossas pesquisas, que tiveram como principais sujeitos alunos que se encontram na condição de adolescentes/jovens e visou refletir sobre sua relação com o conhecimento histórico. Apresentamos algumas considerações acerca dessas etapas da vida e sobre como, geralmente, eles são concebidos pela sociedade e pesquisas acadêmicas. Entendemos tratar-se de categorias polifônicas e, aqui, pretendemos expressar e explorar essa polifonia problematizando-as, apresentando uma discussão do seu percurso histórico no Brasil e relacionando-as com os estudos realizados. Defendemos que pensar nessas categorias e nos sujeitos que as compõem não pode se dar em bloco, desprovido de características peculiares. Assim, junto com autores que estudam a temática, concordamos que abordar adolescências/juventudes no plural é o mais adequado por se tratar de fenômeno construído em bases sociais, econômicas, culturais, psicológicas e emocionais complexas, que impactam diretamente na forma como esses sujeitos vivenciam a aprendizagem histórica.
Os limites da democracia sob o capitalismo neoliberal: intersecções entre o centro e a periferia à luz do pensamento de Wolfang Streeck
Authors: Torelli Leandro Salman
Published: May 2023

O objetivo deste artigo é analisar as relações entre democracia e capitalismo a partir da obra do sociólogo alemão Wolfgang Streeck. Nos valendo de sua ideia de que o capitalismo vem comprando tempo, desde os anos 1970, para legitimar um sistema neoliberal que não consegue mais compatibilizar os interesses do mercado com as demandas sociais por democratização, nos propomos a comparar os processos ocorridos no centro capitalista e no Brasil entre 1970 e 2016.
Formação inicial de pedagogos: incorporação dos Estudos Surdos e das produções acadêmicas de pesquisadores surdos nos planos de ensino da disciplina de LIBRAS
Authors: Gonçalo Sheila Ferreira
Published: May 2023

Os Estudos Surdos configuram-se como uma corrente teórica cujas análises deslocam a discussão sobre a surdez do âmbito da deficiência e da educação especial, alocando-a em uma nova territorialidade educacional que reivindica o reconhecimento político da identidade e da cultura surdas. O crescente número de pesquisas e de pesquisadores, surdos e ouvintes, ligados a esta perspectiva teórica fornece a dimensão da expansão e relevância dos Estudos Surdos para as discussões acadêmicas a respeito da escolarização dos surdos em instituições regulares ou especializadas, emergindo como uma temática relevante para a formação docente. Assim, esta pesquisa analisa a incorporação das produções acadêmico-científicas ligadas aos Estudos Surdos, especialmente aquelas publicadas por pesquisadores surdos, na formação inicial de pedagogos, tomando como base os planos de ensino da disciplina de LIBRAS, presentes nos projetos pedagógicos de cursos de licenciatura em pedagogia de instituições federais de ensino do estado de São Paulo. Os dados analisados, ao mesmo tempo em que apontam a presença de temas vinculados aos Estudos Surdos no currículo dos cursos analisados, não encontraram uma correlação nominal entre esses temas e o termo “Estudos Surdos”. Além disso, evidenciou-se uma reduzida incorporação das produções científicas de pesquisadores surdos na formação inicial de pedagogos.
Análise discursiva das percepções de licenciandos em Pedagogia sobre a construção de letramento acadêmico-científico
Authors: Oliveira Dedilene Alves de Jesus , Ribeiro Júnior Paulo César
Published: May 2023

Estudos sobre práticas de letramento acadêmico no ensino superior têm demonstrado que há uma concepção de que tais processos se manifestam de forma complexa, tanto na escrita e leitura quanto na oralidade (MUSSIO, 2017; FIAD, 2011; MOTTA-ROTH, 2010; FISCHER, 2010), exigindo um olhar mais atento no que diz respeito às formas de recepção e produção dos textos acadêmico-científicos. Diante desse cenário, nosso objetivo de pesquisa foi analisar as percepções dos licenciandos de Pedagogia de uma instituição de ensino superior estadual mineira acerca das suas vivências nas práticas de letramento acadêmico-científicos. Como metodologia, fizemos um questionário individual para os ingressantes no curso e os licenciandos do último período, com 12 questões. Para este trabalho, selecionamos 4 questões discursivas, que apresentaram justificativas e comentários dos licenciandos sobre suas experiências com esse tipo de letramento. Como metodologia de análise, utilizamos os pressupostos da Análise de Conteúdo (BARDIN, 2007). Os resultados demonstraram que há necessidade de uma mediação mais aprofundada por parte dos professores do ensino superior, para que as práticas de letramento acadêmico-científico sejam mobilizadas não somente em momentos esparsos do curso ou para grupos específicos, mas façam parte da cultura acadêmica de forma mais proveitosa e sejam verdadeiramente ensinadas.
The market competition of intention to revisit nature tourism destinations
Authors: Suliyanto Suliyanto , Setyanto Refius Pradipta , Fauzi Daffa Redika
Published: May 2023

Market competition in various industries is indirectly one of the causes of changing consumer behavior. The tourism industry is one of the business industries that pay attention to the competence of every aspect so that it can provide the best value to its visitors. The research discusses the intention to return, based on the competitive advantage of tourist destinations. This study aims to examine the effect of destination image (DI), destination attractiveness (DA), and experiential tourism (ET), on intention to revisit (IR) by placing tourist satisfaction (TS) as a mediating variable. This empirical study was conducted at the tourist destinations nature of Baturraden in Banyumas, Central Java, Indonesia. This study used a purposive sampling method involving at least 110 tourists who had visited Baturraden in the last 3 months. This study showed different results, whereas DI and DA indirectly affect IR, this influence is shown through TS. This research is different from previous studies because the discussion of DI on interest in returning (RI) through TS has not been carried out in natural tourism destinations, so this research is a development of previous research, especially on natural tourism.
ESG performance and firm value: The moderating role of ownership concentration
Authors: Srivastava Anjali , Anand Anand
Published: May 2023

The shift towards sustainability has resulted in more disclosures regarding environmental, social, and governance (ESG) issues. This study explores how ESG scores impact firm value in the presence of concentrated ownership. The sample consists of 15,640 firm year observations across 46 countries from 2011–2020. The results of this study show that the ESG score has a positive association with the firm value, supporting the stakeholder theory. Further results indicate that ownership concentration (OC) has a negative moderation effect on the association between ESG and firm value, supporting the entrenchment effect. The results are consistent with the alternative measures of OC The results hold for the two-stage least squares (2SLS) model used to address any endogeneity issue between ESG score and firm value.
Multi-branch temperature balance control strategy for tubular furnace based on GSA-MPIDNN
Authors: Yang Guotao , Jiang Wenqiang , Hu Shaolin
Published: May 2023

The tubular furnace is one of the main production equipment in
petrochemical industry, the main functions of which is to heat the
liquid oil in multiple branch tubes in the furnace to the target
temperature. Since the temperature of each branch furnace tube is
affected by the feed composition, the distribution position of the
furnace tube and the uneven distribution of the furnace temperature,
these factors may result in the deviation of the oil outlet temperature
of each branch, and the serious temperature deviation may lead to the
coking of the furnace tube and even cause accidents. In order to
overcome the problem of unbalanced outlet temperature of each branch
tube in the tubular furnace, this paper proposes a temperature control
method GSA-MPIDNN, which is based on genetic simulated annealing (GSA)
algorithm to optimize multi-input multi-output
proportion-integration-differentiation neural network(MPIDNN). The GSA
algorithm is used to find out the optimal initial weights of the MPIDNN,
to overcome the deficiency of the algorithm by manually setting the
initial weights, and to improve the control performance of the MPIDNN
controller on the outlet temperature of the tubular furnace. The Matlab
software is used to build the mathematical model of GSA-MPIDNN
controller and tubular furnace, and the results are compared and
analyzed with the traditional methods such as MPIDNN, PID and fuzzy PID,
etc. The results show that the convergence time and error of GSA-MPIDNN
are better than the traditional methods, which verifies the
effectiveness of the method.
SARS-CoV-2 Omicron variants BA.4 and BA.5 dominated the fifth COVID-19 epidemiological wave in Mexico
Authors: Taboada Blanca , Zarate Selene , García-López Rodrigo , Muñoz-Medina José , Gómez-Gil Bruno , Herrera-Estrella Alfredo , Sanchez-Flores Alejandro , Lais Angel Gustavo Salas , Roche Benjamin , Martínez-Morales Gabriela , Zárate Hermilo Domínguez , Molina Célida Duque , Hernández Ricardo Avilés , López Susana , Arias Carlos F.
Published: May 2023

In Mexico, the BA.4 and BA.5 Omicron variants dominated the fifth
epidemic wave (summer 2022), superseding BA.2, which had circulated
during the inter-wave period. The present study uses genome sequencing
and statistical and phylogenetic analyses to examine these variants’
prevalence, distribution, and genetic diversity in Mexico from April to
August 2022. Over 35% of the sequenced genomes in this period
corresponded to the BA.2 variant, 8% to the BA.4, and 56% to the BA.5
variant. Multiple subvariants were identified, but only BA.2.9,
BA.2.12.1, BA.5.1, BA.5.2, BA.5.2.1, and BA.4.1 circulated throughout
the fifth wave across the entire country, not forming geographical
clusters. Contrastingly, other subvariants exhibited a geographically
restricted distribution, most notably in the Southeast region, which
showed a distinct subvariant dynamic. This study supports previous
results showing that this region may be a major entry point and may have
contributed to the introduction and evolution of novel variants in
Mexico. Furthermore, a differential distribution was observed for
certain subvariants among specific States throughout time, which may
have contributed to the overall increased diversity observed during this
wave compared to the previous one. This study highlights the importance
of sustaining genomic surveillance to identify novel variants that may
impact public health.
Research progress on predicting atrial fibrillation recurrence after radiofrequency ablation based on electrocardiogram-related parameters
Authors: Niu Jiayin , Zhang Min , Liu Pengfei , Hua Cuncun , Zhong Guangzhen
Published: May 2023

Atrial fibrillation (AF) is the most common arrhythmia. It is associated
with increased stroke risks, thromboembolism, and other complications,
which are great life and economic burdens for patients. In recent years,
with the maturity of percutaneous catheter radiofrequency ablation (RFA)
technology, it has become a first-line therapy for AF. However, some
patients still experience AF recurrence (AFR) after RFA, which can cause
serious consequences. Therefore, it is crucial to identify appropriate
parameters that can predict the prognosis. Here, we reviewed possible
predicting indicators for AFR, focusing on all the electrocardiogram
indicators, such as P wave duration, PR interval and so on. It may
provide valuable information for guiding clinical works.
Structural insights into the role of deleterious mutations at the dimeric interface of TRAM protein
Authors: Sowdhamini Ramanathan , Verma Shailya , Menon Revathy
Published: May 2023

Toll-like receptors (TLRs) are major players of the innate immune system
– recognizing pathogens and differentiating self/non-self components of
immunity. These proteins are present either on the plasma membrane or
endosome and recognise pathogens at their extracellular domains. They
are also characterised by a single transmembrane helix and an
intracellular TIR domain. Few TIRs directly invoke downstream
signalling, while others require other TIR domains of adaptors like TRAM
and TRIF. On recognizing pathogenic lipopolysaccharides (LPS), TLR4
dimerises and interacts with the intracellular TRAM dimer through the
TIR domain to further recruit TRIF molecules. We have performed an
in-depth study of the effect of two mutations, P116H and C117H, at the
dimeric region of the adaptor TRAM, which are known to abrogate
downstream signalling. We modelled the structure and performed molecular
dynamics studies to infer the structural changes occurring across the
trajectory due to the point mutations in order to decipher the
structural basis of this dramatic effect. We observed that these
mutations led to increased RoG (Radius of Gyration) of the complex and
resulted in several changes to the interaction energy values when
compared against the wild type and few positive control mutants. We
identified highly interacting residues as hubs and few such hubs that
were lost in the mutant dimers. Further, changes in the protein residue
path, hampering the information flow between the crucial AEDD and TS
sites, happen for the mutants. Overall, we show that such residue
changes can have subtle but long-distance effects, impacting the
signaling path allosterically.
Electron Transport through Hydrogen Bonded Single-Molecule Junctions
Authors: Fang Jiu-Hong , Zhao Zhi-Hao , Li Ang-Xuan , Wang Lin
Published: May 2023

Hydrogen bonding is a vital driving force for organizing the hierarchy
molecular structure, especially in biologic field. Due to its
directionality, selectivity and moderate strength, hydrogen bonding has
been extensively introduced into the molecular recognition, sensing and
electronic devices. Electric meas-urements at single-molecule level
facilitate the investigation of hydrogen bonds and provide a
comprehensive understanding of the electron transport properties
governed by the hydrogen bonding, which is essential for the development
of self-assembled electronic systems. This review provides a de-tailed
overview of recent advancements in constructing single-molecule
junctions utilizing intramolecular and intermolecular hydrogen bonding.
We first introduce the methods utilized for characterizing the electric
and dynamic properties of non-covalent interactions. Next, we discuss
the mechanisms of electron transport, relevant influencing factors, and
typical applications utilizing electrical signals based on
single-molecule junctions. Finally, we propose our perspective on the
existing challenges and prospective opportunities in utilizing hydrogen
bonding for electronic device applications.
Thermodynamics and symmetry of Human Catabiosis- the present understanding
Authors: Çatak Jale , Dutta Abhijit , Chattopadhyay Himadri
Published: May 2023

In this paper, human catabiosis has been observed from the vantage of
thermodynamics. The nature of human catabiosis, its origin and future
evolution are addressed. Research works on human catabiosis based on
non-equilibrium thermodynamics are summarized. The origin of the human
species, reproduction, growth and ageing are reviewed from the
perspective of thermodynamics, and finally, the future trend of
catabiosis is discussed. Works of the literature suggest that in the
human body, thermodynamic entropy generation increases with the increase
in age. It is valid for organs as well. Human catabiosis can be thought
of as a continuous degradation of Gibbs free energy, which brings to the
thermodynamic equilibrium i.e. death. The choice of dietary patterns and
geographical locations also influences the ageing process. The
low-calorie diet delayed human ageing. However, literature exhibits that
the colder region on the earth (Oceania, Europe and North America)
extend life expectancy. The future trend of longevity depends on how the
entropy production will be compensated with introduction of futuristic
medical aids.
Don’t Play with Gas: Relating Metrics with Smart Contract Deployment Costs
Authors: Melas George , Chatzigeorgiou Alexandros , Ampatzoglou Apostolos
Published: May 2023

Smart Contracts (SC) are computer programs that run on blockchains and
can be executed automatically in a deterministic way, when
pre-determined conditions are met. Currently, Ethereum is the biggest
blockchain network with more than 200,000 SCs deployed every
month[1](#fn-0002). The main mechanism for financially managing and
securing such networks is “ Gas Consumption”. In particular, a
gas cost is assigned to each operation that alters the blockchain state,
based on the SC size and complexity. Thus, the cost that a SC incurs to
its owner and users is related to the internal structure of the SC. By
considering that the average cost for deploying a Smart Contract can
reach up to thousands of euros, it becomes obvious that internal quality
of SCs is of great importance. To this end, in this article we present a
comprehensive analysis of the correlation of a set of code metrics
(e.g., size, complexity) with the actual gas required to deploy Smart
Contracts. The empirical evidence that we provide rely on the analysis
of over 90,000 SCs. In addition to the produced empirical knowledge, in
most of the cases validating the theoretical expectation, we have
implemented a web-based application (Smart Contracts Quality Analysis
Platform—SCQAP) that visualizes the findings, enabling the on-demand
creation of correlation diagrams, and offers access to a public
repository of our data (metrics and deployment gas consumption) via a
REST API. To the best of our knowledge this is the biggest empirical
study on SCs, which: (a) sets up the scene for further large-scale
studies on Smart Contracts (through tooling and public dataset); and (b)
provides guidance to software practitioners on parameters that can
inflate deployment costs.
Experimental Analysis of Portable Thermal Energy Storage (TES) to Generate Water from Ice for High Altitude Regions
Authors: M Chandrashekara , Ramdin Yadav Dheerajkumar , Mehla Neeraj
Published: May 2023

A portable thermal energy storage (TES) system that can melt ice to
generate water has been developed and tested. The core of the experiment
was a PCM-filled TES container, with an Icebox placed inside. Stearic
acid was used as the PCM, and its melting and solidification
characteristics matched those of other research. Five trials were
conducted to assess the effectiveness of the system. Each trial lasted
22, 88, 104, 188, and 78 minutes, with trials 1 and 2 having a high heat
transmission rate. Trial 5 was terminated due to a lack of heat. The PCM
required 408.34 KJ/kg of heat to melt, and it absorbed a total of 1226
KJ of heat. For each trial, 230 KJ of heat were needed to heat the water
from -60°C to 250°C, and 450 KJ of heat were needed to heat one
kilogram. The PCM had a charging efficiency of 34.05%, a discharging
efficiency of 95.61%, and a total system efficiency of 32.56%.
Modifying the charging procedure could increase the system’s overall
efficiency.
Epidemic model of Covid-19 with public health interventions consideration: a review
Authors: Zhang Yin , Xiong Jianwu , Mao Ning
Published: May 2023

：Since the Covid-19 outbreak and widely spread, global attentions have
been increasingly drawn to the epidemic spread and pandemic development.
Many researchers focus on the modelling of the development of the
COVID-19 and the effect of intervention on containment of the spread. We
systematically reviewed the epidemic models of COVID-19 transmission and
its public health interventions: a) COVID-19 epidemic models, including
its hypothesis, key input epidemiological parameters, asymptomatic
proportion and mortality; b) the impact of public health interventions,
including social isolation, contact tracking, improving quarantine rate
and reporting rate, travel restrictions, etc. To help the modelling
researchers to calibrate the epidemiological model accurately based on
the actual situation, the public health authorities should work out
accurate epidemiology data. Different countries should take appropriate
public health interventions to control the development of the epidemic.
Although strict travel restrictions can significantly suppress the
spread of COVID-19, while contact tracking, isolation and other measures
can identify and control the infection source timely and effectively,
which can cut off the transmission, but protective face mask is the
intervention measure with the lowest economic cost and social cost.
After the recession of the epidemic in Wuhan, the result of centralized
nucleic acid detection on 9.97 million people showed that the
asymptomatic infection ratio was very low and asymptomatic infection was
not infectious, suggesting that the existing Covid-19 epidemiological
models may overestimate the risk of epidemic. Excessive public
preventive measures may do more harm than good, and hinder the recovery
of normal economic life order.
Cosine families of operators have the SVEP
Authors: Boua Hamid
Published: May 2023

Let (C(t))t?R be a strongly continuous cosine function of operators on a
Banach space X with infinitesimal generator A. In this paper, we prouve that
A has the SVEP if and only if C(t) has the SVEP for all t ? R if and only if
C(t0) has the SVEP for some t0 ? R.
Sharp estimates for the unique solution for a class of fractional differential equations
Authors: Laadjal Zaid
Published: May 2023

In this paper, we investigated the sharp estimate for the condition of the
given interval which guarantees for the unique solution of a
Reimman-Liouville-type fractional differential equations with boundary
conditions. The method of analysis is obtained by the principle of
contraction mapping through using the maximum value of the integral of the
Green?s function. Besides, we also concluded a sharper lower bound of the
eigenvalues for an eigenvalue problem. Finally, two examples are presented
to clarify the principle results.
Representation of essentially semi regular linear relations and perturbations
Authors: Keskes Sonia , Mnif Maher
Published: May 2023

In the case of linear operator the property P(B, k) was introduced by
M.A. Kaashoek. In this paper, we characterize the essentially semi regular
linear relation in terms of the property P(B, k). After that and as an
application of this result we give some connection between essentially semi
regular and semi regular linear relations. Further, we will give some
supplementary conditions on essentially semi regular linear relation to be
semi Fredholm. Then, we analyze the stability of the class of essentially
semi regular linear relations under small perturbations and Riesz operators.
Finally, we study some properties of the essentially semi regular spectrum
of a linear relation and we establish a spectral mapping theorem.
Bounds on Ricci curvature for doubly warped products pointwise bi-slant submanifolds and applications to physics
Authors: Aquib Mohd , Aslam Mohd , Shahid Mohammad
Published: May 2023

In this article, we obtain bounds for Ricci curvature for doubly warped
products pointwise bi-slant submanifolds in generalized complex space forms
and discuss the equality case of the inequality. We also derive the
non-existence of such immersions. Finally, we construct some applications of
the result in terms of the Harmonic function, Hessian tensor, and Dirchilet
energy function.
Microstructural and mechanical properties of hot deformed AISI 4340 steel produced by powder metallurgy
Authors: Yirik Ayşe , Gündüz Süleyman , Taştemür Demet , Erden Mehmet
Published: May 2023

In this work, AISI 4340 steel was produced by powder metallurgy. Samples were
sintered at 1150?C for 90 min. and then cooled in the furnace. Except to
those in the as-sintered condition, one of the produced samples was
homogenized at 1150?C for 1 h and then cooled in air. Other samples were
deformed at the temperature range of 1150-930?C and deformation rate of 30
and 60% followed by cooling in sand, air and water mediums. The grain size
gradually decreased depending on the deformation rate or cooling rate in
AISI 4340 steel. Small grains occurred due to completely recrystallization
at 60% deformation rate. Density and hardness also increased by the increase
in deformation rate. The results showed that hot deformation is a process
that is capable of improving the properties of AISI 4340 steel produced by
powder metallurgy without rising the addition of alloying elements.
Skeptical fideism in Hume's Dialogues concerning natural religion
Authors: Bogdanovski Masan
Published: May 2023

Despite the fact that Hume is rightfully considered to be an antireligious writer, the concluding Filo's speech in the Dialogues Concerning Natural Religion contains one of the most striking proclamations of Christian fideism in the history of religious thought. In this paper, by investigating Hume's account of the relationship between religious faith and pyrrhonism, and the principal affinities between fideism and philosophical skepticism, I attempt to explain how could this happen. Hume's personal standpoint, which is different than Filo's, may be reconstructed by careful examination of the so called parity argument.
The most important sugar beet pests in Ukraine and integral measures for their control
Authors: Fedorenko Vitaly
Published: May 2023

The report delivers the origins of the insect complex formation on sugar beet fields in Ukraine. Biological, ethological and ecological peculiarities of the most numerous pest species have been shown. Regularities of many-year dynamics of pests, the problems of phytosanitary state of agrocenosis of sugar beet fields and conceptual grounds of pest control in contemporary conditions have been substantiated.
Study of sugar beet viruses transmitted by Polymyxa betae in the Czech Republic
Authors: Rysanek Pavel , Homa Ihmed , Zouhar Miloslav
Published: May 2023

Sugar beet viruses transmitted by Polymyxa betae are very widespread in the Czech Republic. Beet soil-borne virus (BSBV) is present in almost all fields used for sugar beet growing, beet virus Q (BVQ) is present in about 50% of fields but beet necrotic yellow vein virus (BNYVV) is present in some limited regions only. It means that mixed infections of sugar beet by at least two viruses are quite common in the field. P. betae also occurs in almost all fields where sugar beet is now grown. Only two populations of P. betae not transmitting any virus were found. Cystosori of P. betae can harbour viruses without loosing infectivity for a very long time. We were able to detect these viruses in plants grown in soil stored dry for 12 years. BNYVV can cause serious yield losses under mideuropean conditions reaching up to 50% of sugar yield, whereas harmfulness BSBV and BVQ is questionable, because they also occur in fields with no problems concerning sugar beet growing. The host range of these viruses was studied. Both infect all types of beet (sugar fodder, red beet, mangold) and spinach and usually are detectable in root system only. Other chenopodiaceous plants are infected only by some virus strains. These strains are also able to spread into above-ground parts of plants.
The most important pathogens transmitted by sugar beet
Authors: Milosevic Mirjana , Ignjatov Maja , Medic-Pap Sladjana
Published: May 2023

Pathogenic fungi and viruses transmitted by sugar beet seed represent a complex group of organisms. Detection of these pathogens is an important issue in sugar beet protection. Their identification is a difficult task because the most available methods rely on the growth characteristics morphological and biochemical criteria. Three domestic and eight foreign sugar beet varieties, from Germany, Italy and Greece were included in the investigation. Seed health testing was performed in laboratory and in field conditions. During the trials, the following methods were used: blotter method, agar plate method and ELISA test for viruses. Seeds were incubated in "Conviron" aparatus at 22?C which is suitable for sporulation of different kind of fungi (light and temperature were adjustable). The appereance of following fungi was noted during incubation: Pleospora bjoerlingii (Phoma betae), Fusarium spp., Pythium spp. Aphanomyces cochlioides and Cercospora beticola. Viruses tested by ELISA test were beet necrotic yellow vein virus (BNYVV) and beet yellows virus (BYV). Viruses were tested in sugar beet seedlings grown in laboratory conditions and on leaves of individual plants from the field. The disease index was calculated on the basis of intensity of infection of plants for Cercospora beticola and Phoma betae according to Mc Kinney's formula. Results were presented by graphs, tables and original photos.