bluuebunny/crossref_metadata_2025 huggingface dataset:
Improving Traffic Safety in Existing and New Road Tunnels with the Novel NDBA Concrete Safety Barrier
Authors: Guerrieri Marco , Dinnella Nicola
Published: June 2024

Two main elements are essential in terms of road traffic safety. The first element is accident prevention and the second is the minimization of accident severity once a crash has occurred. Concrete safety barriers have very good anti-collision performance against roadside obstacles, relatively modest construction and maintenance costs, and low dynamic deflection and therefore are widely used in tunnels. Thanks to their characteristic redirective profile these barriers can redirect errant vehicles into their original lane after collisions. However insufficient research has been done for increasing the performance of concrete barriers purposely designed for tunnel installations. This research presents the new “NDBA Tunnel” concrete safety barrier designed and constructed by the Italian Road Operator ANAS indicated to be installed in road tunnel sections for safety improvements. In Europe, road safety barriers must be designed in compliance with the European Standard EN 1317. Therefore, the barrier “NDBA Tunnel” was subject to the TB11 and TB81 full-scale crash tests according to the European EN 1317 regulation. The results prove the barrier's ability to absorb impact loads of light and heavy vehicles with a working width W2. Therefore, the NDBA concrete barrier can be installed on existing or new tunnels at a distance less than or equal to 70 cm from the facing of the tunnel wall.
Algorithmization and Hardware Implementation of Polar Coding for 5G Telecommunications
Authors: Pyatin Ilya , Boiko Juliy , Eromenko Oleksander
Published: June 2024

The article explores a recursive algorithm for determining Bhattacharyya parameters, which is a measure of the degree of channel polarization for telecommunications with polar coding. A method is given for determining the positions of information and fixed bits in a polar code. The principles of constructing a polar encoder and a polar decoder successive cancellation are considered. The Field-Programmable Gate Array implementation of the successive cancellation list decoder is considered. Experimental studies of the construction of a polar code using Gaussian approximation have been carried out. The influence of the design signal-to-noise ratio on the bit error rate of telecommunications with polar codes has been studied. The use of multi-position modulation in telecommunications with polar codes has been studied. It is expected that the results obtained will be useful in hardware and software implementation of 5G telecommunications with polar coding.
Accuracy Low-Cost “Handshake” Two-Way Ranging Protocol Applied to Road Traffic Communications
Authors: Miasse Herman Olivier , Kombe Timothee , Bossou Olivier Videme , Ele Pierre
Published: June 2024

The densification of the vehicle fleet leads to numerous challenges in road safety management. Wireless Sensor Networks (WSN) helps to manage vehicle-vehicle-infrastructure interactivity, in particular to predict dangers and avoid accidents, detect and penalize traffic violations. This requires a massive deployment of communicating nodes embedded in vehicles and in road infrastructure. The reliability of the systems built on these nodes lies in the accuracy of the ranging. In order to improve the factors that impact accuracy, various ranging protocols have been developed, but their implementations most often involve the use of expensive and specialized transceivers, which incorporate a dedicated IEEE 802.15.4a ranging layer. Our approach implements the basic and advanced functions integrated into low-cost transceivers and microcontrollers. As result, in two or three links according to the case, our protocol performs simultaneously the ranging and the data exchange, against a specific ranging session with a minimum of three exchanges for the other protocols. Moreover, each node knows the ranging data and has its clock frequency adapted to the controlled process. So, we meet the challenges of large-scale low-cost node deployment, while ensuring high reliability and performance of ranging.
Technology Trends Revolutionizing the World of Work- Auto Industry Perspective
Authors: Poorani S. , Krishnan L. R. K.
Published: June 2024

Aim/Purpose: Disruptive technologies impact business cycles and work practices, paving the way for new-generation manufacturing trends. Organizations are constantly working to introduce products with a higher degree of innovation, catering to customer demands in the market.
 
Background: The automobile industry plays a significant role in applying disruptive technologies while proving value to all stakeholders. The technological disruptions in the auto sector can potentially change the relationship between consumers and the automobile while impacting business trends and work practices.
 
Methodology: Various scholarly research material was reviewed to understand the impact of technology disruptions on manufacturing methods, work practices, employee engagement, and skill development. Secondary data analysis was conducted for this qualitative and descriptive study.
 
Contribution: This paper helps to understand the impact created by various technologies in the auto sector on employee retention—the role of man- Machine collaboration in creating job satisfaction among employees.
Findings: Besides automation and digitalization, AI, Robotics, and Mechatronics play a crucial role in the sector's evolution. The study findings help us understand the impact of technology on manufacturing and business practices.
 
Recommendation for Practitioners: Investment in training the workforce and embracing collaboration helps employees to benefit from the real world of work.
 
Recommendation for Researcher: To ensure the relevance of research studies, practitioners and researchers should maintain a collaborative approach, using research insights to inform business strategies.
 
Impact on Society : Analyze how technologies like collaborative robots (cobots) are integrated into manufacturing processes and their impact on job roles and efficiency.  Technology continues to evolve, so societies shall proactively address challenges and leverage opportunities to take advantage of these innovations. It is the role of government policymakers, industry stakeholders, and educators to shape the auto industry's future in a way that maximizes the benefits to society from technological innovation.
 
Future Research : The study's scope is to be done quantitatively by covering OEMs all over India. It discussed disruptive technology in general. Specific technological advancements can be analysed to dive deep into the phenomenon. A similar study could be undertaken in another industry besides the automobile.
Using Analysis of Variance and Tukey's Test to Compare Four Brands of Industrial Paint
Authors: Deus Daniel Marques de , Carvalho Cleginaldo Pereira de , Mazza Felipe Cury , Siqueira Sílvio Sérgio Silveira de , Miranda Junior João Ercio , Sampaio Nilo Antonio de Souza
Published: June 2024

Objective: The aim of this paper is to show the application of Analysis of Variance and Tukey's Test to compare four brands of paint used in a company's production.
 
Theoretical framework: Analysis of Variance, or ANOVA, is a statistical method used to determine whether there are significant differences between the means of three or more independent groups. This technique was developed by the British statistician and geneticist Ronald Fisher at the beginning of the 20th century (Bosco v & Bispo, 2010).
 
Method: Data was taken from a company in the South of Rio de Janeiro and a case study was carried out using Analysis of Variance and Tukey's test.
 
Final Considerations: This result indicates that the hardness of the paint mixtures differs significantly. Some of the group averages are known to be different. Tukey's comparison results were used to formally test whether the difference between a pair of groups is statistically significant. It was found that Paint 4 has a higher hardness than the others.
 
Implications of the research: The use cases of Analysis of Variance and Tukey's Test are multiplying in the scientific literature and are proving to be highly effective for processing data in a wide variety of areas.
 
Originality/value: Despite being well-known statistical tools, Analysis of Variance and Tukey's Tests are only valid in cases where there are more than two types of samples in which the statistical assumptions have been confirmed.
Confiabilidade e Simples Probabilidade de Ruína de Blocos de Concreto Armado sobre duas Estacas:
Authors: Damasceno Inácio Nayara Talassa , Barros Rodrigo , Silva Filho José Neres da , Nascimento Neto Joel Araújo do
Published: June 2024

As normas de projeto brasileiras atuais indicam o dimensionamento de estruturas de concreto armado de acordo com o Método dos Estados Limites, utilizando fatores parciais e globais de segurança, sem especificar um estudo de confiabilidade e cálculo da probabilidade de ruína. Diversos autores indicam que o estudo de confiabilidade é necessário para avaliar a segurança das estruturas, e alguns desses conceitos já foram incorporados por normas estrangeiras. A engenharia é uma atividade de risco, e usar estatística para tratar a aleatoriedade das variáveis é a tendência moderna. Esse trabalho tem como objetivo fazer análises de confiabilidade de blocos de concreto armado sobre duas estacas de forma simples e prática, utilizando duas grandezas aleatórias: solicitação e resistência. Foram propostas formas de montar as curvas das solicitações e resistências. A confiabilidade e probabilidade de ruína de cada caso foram calculadas. Observou-se que a confiabilidade e a probabilidade de ruína são dependentes da resistência característica do concreto e do seu rigor na condição de preparo.
Lipid Quality of Amazonian’s Native Fish, Overview and Market Outlook of Brazilian Fish Farming
Authors: Pandolfo Marmentini Regiane , Vieira Dantas Filho Jerônimo , Brito dos Santos Raphael , Amaringo Cortegano Carlos Andre , Cavali Jucilene
Published: June 2024

The aimed of this study was to carry out a bibliometric survey on the lipid composition Amazonian’s native fish and the international aquaculture overview, Brazilian aquaculture overview, native farmed fish production, characteristics of Brazilian fish meat, nutritional aspects and benefits of native fish consumption and market outlook of Brazilian fish farming. This is a data collection study that is characterized as being of an exploratory descriptive, with a qualitative character, aiming to analyze, systematize, compare and cross data between different scientific literatures related to the theme. The searches in Web, storage and data analysis were carried out from March to August 2021. The bibliographic bases for carrying out the searches were Scopus, Web Science, Elsevier, Hindawi, Scielo, Wiley, CAPES/Brasil Journals and institutional repositories. Searched for descriptors in Portuguese and English language, with words and terms separated by the Boolean operators 'AND' and 'OR'. In addition to being sustainable, consuming native farmed fish is a healthy choice from a nutritional point of view, because they contain monounsaturated and polyunsaturated fatty acids that are related to an anti-inflammatory effect and a lower propensity for cardiovascular diseases in consumers. Regarding the production chain problems, market studies must be carried out for each region of Brazil. In addition, more investment in integrated crop systems is needed. In other words, quality certification is needed to universalize native Brazilian fish. Therefore, the future of Brazilian fish will depend on better dissemination to attract different market niches
Motor a combustão via ciclo Otto: teorias e análise do desempenho
Authors: Alves André Luíz , Zancanella Antônio Carlos Barboza
Published: June 2024

O presente trabalho, desenvolvido por um estudante finalista do curso de Física possui caráter interdisciplinar, pois envolve questões econômicas, de engenharia e física.  O principal foco deste estudo foi avaliar o consumo de combustível de um motor via ciclo Otto alimentado com gasolina proveniente de diferentes postos de abastecimento localizados no município de São Mateus, ES. Analisou-se também a vibração e temperatura do sistema durante a operação. Para realização dos testes utilizou-se um motor da marca Renaut com volume da câmara de combustão de 1,6 litros, abastecido com quatro fontes diferentes de gasolinas. Registrou-se o consumo de combustível, temperatura, vibração e teor de álcool. Os resultados mostraram que o consumo de combustível foi maior em gasolinas com maior teor de álcool. Observou-se uma variação máxima de 5°C no regime de funcionamento do motor. Concluiu-se então que o consumo é afetado pelo teor de álcool de cada gasolina e a vibração proveniente do motor altera conforme o teor de álcool.
Jabuticaba (Plinia cauliflora): uma revisão de literatura sobre sua composição química e atividades biológicas
Authors: De Lima Paula Priscila , Benini Andrade Núbia , De Araújo Carvalho Lucas , Lucas da Silva Lima Gustavo , Luiz Fabri Rodrigo
Published: June 2024

O Brasil possui uma rica biodiversidade vegetal e, neste contexto, a Plinia cauliflora (jabuticaba) se destaca como uma espécie nativa com grande potencial farmacológico. A planta é encontrada em várias regiões do país e tem sido estudada por suas diversas atividades biológicas, como antioxidante, anti-inflamatória, vasodilatadora, antitumoral, antiparasitária, leishmanicida, antidiarreica, antiobesidade e fotoprotetora. Estas atividades estão associadas à presença de compostos fenólicos, como antocianinas, flavonoides, procianidinas, ácidos fenólicos e taninos, e estão presentes nas diferentes partes da planta. O uso popular da P. cauliflora inclui o tratamento de diversas doenças, como disenteria, diarreia, inflamações, gripe, bronquite e labirintite. Além disso, os frutos da jabuticaba são consumidos in natura e demonstram benefícios à saúde, incluindo efeitos antioxidantes e a redução dos níveis séricos de glicose e insulina em indivíduos saudáveis. No entanto, apesar do uso tradicional, a pesquisa científica sobre as propriedades farmacológicas das folhas e ramos da P. cauliflora é limitada, o que apresenta uma oportunidade de estudos adicionais e exploração de seu potencial medicinal. Esta revisão descreveu as principais propriedades químicos e biológicas encontradas na literatura sobre P. cauliflora, com foco nas partes vegetais, bem como folhas, ramos e frutos. A metodologia empregada nessa revisão foi a busca de informações nos bancos de dados: Google Acadêmico, Scielo, Science Direct, Scopus, Periódico CAPES e PubMed; usando palavras-chave em inglês e português, como “Plinia cauliflora”, “Jaboticaba”, “Jabuticabeira”, “Myrciaria cauliflora” e sinônimos. Os artigos científicos priorizados para a coleta de dados foram àqueles publicados na última década, entre os anos de 2011 a 2023. A revisão destacou a importância de promover um melhor aproveitamento químico-farmacológico de todas as partes da P. cauliflora, incentivando pesquisas futuras sobre a descoberta de novos compostos e a relação destes fitoconstituintes com as atividades biológicas presentes na espécie.
Brīvība
Authors: Šauers Edijs
Published: June 2024

6.3. Filozofija, reliģija, ētika. Filozofiskās antropoloģijas apakšnozare. Atslēgvārdi: brīvības jēdziens; brīvā griba; cēlonība; morālā atbildība; Dž. S. Mills; eksistenciālisms; nolemtība nāvei; J. Berlins; pozitīvā un negatīvā brīvība.
Filosofiskā antropoloģija II: Rakstu krājums
Authors: Neiders Ivars
Published: June 2024

The collection of papers “Philosophical Anthropology II” is the second volume of papers in philosophical anthropology that contains papers written by members of the Department of Humanities at Rīga Stradiņš University. The collection consists of a foreword and ten chapters. Each chapter addresses its individual topic. The collection is oriented to general reader and does not presume background knowledge of philosophy or philosophical anthropology. / Krājumā “Filosofiskā antropoloģija II” tiek turpināts pirmajā krājumā iesāktais konceptuālais virziens, saskaņā ar kuru filosofiskā antropoloģija “ieņem vidutāja lomu starp dabaszinātnēm un humanitārajām zinātnēm, cenšoties apkopot dažādu zinātņu nozaru atklājumus par cilvēku” (Sīlis, 2015, 14). Tā ir multidisciplināra pieeja, kas izmanto filosofijas metodes, lai interpretētu empīriskus datus (procesus, stāvokļus) un izdarītu vispārinājumus par konkrētiem ar cilvēka eksistenci saistītiem jautājumiem. Tāpat kā iepriekšējā krājumā, arī šī krājuma rakstu struktūra ir saistīta ar nepieciešamību aplūkot pagātnes domātāju veikumu, lai noskaidrotu, cik tas ir aktuāls mūsdienās. Vienlaikus krājuma autori cenšas iekļaut arī mūslaiku problēmas, kas parādās viņu izvēlētās tēmas kontekstā. Atbilstīgi katras tēmas specifikai tiek izskatītas vairākas teorētiskās nostādnes, kritiski analizēti to trūkumi un priekšrocības. Krājums sastāv no desmit rakstiem. 6.3. Filozofija, reliģija, ētika. Filozofiskās antropoloģijas apakšnozare.
Ķermenis un miesa
Authors: Grīnfelde Māra
Published: June 2024

In the first paper “Lived body and object-body”, Māra Grīnfelde explores phenomenological approach to body based on works of a German philo­sopher Edmund Husserl and a French philosopher Maurice Merleau-Ponty. The paper analyses distinction between obect-body (Körper) and lived body (Leib / corps vivant et vécu) developed in phenomenological tradition. / Māras Grīnfeldes rakstā “Ķermenis un miesa” cilvēka ķermeniskuma problēma tiek aplūkota no fenomenoloģijas viedokļa. To raksturo atteikšanās no teorētiskiem uzslāņojumiem jeb priekšstatiem par ķermeņa dabu, lai nodarbotos ar nepastarpinātas, tiešas sajūtu pieredzes pētījumiem. Fenomenoloģiskais skatījums rodas kā reakcija uz priekšstatu par ķermeni kā mašīnu, kas veidojās saskaņā ar jaunlaiku filosofiju, kurā īpaši problemātisks ir jautājums par ķermeņa un gara attiecībām. Tā pamatā ir M. Merlo-Pontī koncepcija par ķermenisko pieredzi – “dzīvoto ķermeni”, kurā ķermenis netiek nošķirts no patības. Tiek iztirzātas ķermeņa shēmas un tādi jēdzieni kā “aktuālais ķermenis”, “ieraduma ķermenis”, kā arī “promesošais ķermenis”. Nobeigumā tiek aplūkotas fenomenoloģiskā skatījuma priekšrocības, kā arī šī skatījuma kritika no sociālā konstrukcionisma pozīcijām. 6.3. Filozofija, reliģija, ētika. Filozofiskās antropoloģijas apakšnozare. Atslēgvārdi: ķermeniskums; fenomenoloģija; M. Merlo-Ponti; ķermeniskā pieredze; miesa; ķermenis kā sociāli valodisks konstrukts.
Datos y reflexiones sobre el sector agrario canario
Authors:   Universidad de La Laguna (España), González González Yurena , García Perdigón Adrián ,   Universidad de La Laguna (España)
Published: June 2024

This article systematises data and analyses on the Canarian agrarian sector. The study of these data suggests a series of reflections framed in the colonial context of the Canary Islands, which has conditioned its history, economy and culture, as well as its agrarian processes. One of the most important milestones for this sector occurred in the 1960s, when the farming sector decline began in the Canary Islands in the face of the huge growth of the service sector, driven by the phenomenon of tourism. The sources consulted and the systematisation carried out place us in the debate that oscillates between dependence and sovereignty, and thus in the agrarian policies developed in this Atlantic archipelago (located approximately 100 km from the African continent and politically and administratively dependent on the Spanish State).
«Love for our kind, too»: la militancia queer de Sylvia Townsend Warner desde la retaguardia durante la Guerra Civil española durante los años treinta
Authors:   Universitat Autònoma de Barcelona (España), Fernández Gallego-Casilda Alicia
Published: June 2024

The outbreak of the Spanish Civil War in 1936 brought about a change of literary paradigm among the Leftist intelligentsia of the country. The experimentation encouraged by Modernism is thus gradually replaced with an increasingly ideological form of writing whose epic zeal and celebration of the virility of soldiers equally nurtured the works of those British poets who became involved by the Spanish antifascist cause. There exists nonetheless another kind of literature of the war in Spain written from the rearguard which examines the reality of the conflict from an intersectional angle. Such is the case of the political poetics of Sylvia Townsend Warner. Through a gender perspective, the contextualised study of the evolution of her poetics during the thirties can allow a revision of the dominant version of the Spanish Civil War imposed by the predominantly male cultural politics of the time.
Cloaked bones in Mucolipidosis II - A periosteal reaction in newborns
Authors: Khan Sana Ashraf , Kale Sunita , Thakkar Hemangini Uday , Alam Zillani
Published: June 2024

On routine, antenatal ultrasound evaluation of a women at 35 weeks gestation showed a fetus (Case 1) with shortening of all the long bones (<5th percentile) with bowing and fuzzy margins. The baby was delivered full term. On physical examination, the baby had a fragile skull, narrow thorax, and short angulated limbs. Postnatal infantogram showed short long bones, periosteal cloaking, fractures, and bell shaped thorax. Another fetus (Case 2) with antenatal ultrasound done elsewhere was suggestive of short and bowed femur. At birth, the baby had angulated limbs. The infantogram shows the periosteal cloaking (thick periosteal reaction) and short long bones similar to the above-mentioned case. Both babies were positive for the I-cell screening test for Mucolipidosis II. Case 1 was confirmed for the same with whole exome sequencing.
Un estudio iconotextual de las estampas de Pedro Perete del libro de Juan Mateos, Origen y dignidad de la caza
Authors: Calvo Portela Juan Isaac
Published: June 2024

En este artículo se abordará el estudio de las estampas que el grabador de origen flamenco Pedro Perete realizó para ilustrar el libro de Juan Mateos, quien fue montero de Felipe IV, Origen y dignidad de la caza, que se imprimió en Madrid en 1634. En ellas se representan algunas de las escenas cinegéticas narradas por Mateos en su libro, poniendo de manifiesto la estrecha relación entre las imágenes y el texto. El protagonista de la mayoría de las escenas como del propio libro no es otro que el monarca hispano Felipe IV, que siempre fue un entusiasta de la caza. A lo largo de este trabajo también se pondrá de relieve el vínculo que tienen estas estampas con algunas pinturas realizadas por artistas flamencos o por Diego Velázquez para el cazadero real de la Torre de la Parada.
Carbon Dioxide Capture: Current Status and Future Prospects
Authors: Ashirov Timur , Coskun Ali
Published: June 2024

The surge in greenhouse gas emissions, predominantly in the form of carbon dioxide (CO2) spurred by the Industrial Revolution, has surpassed the critical threshold of 400 ppm, fueling global warming, ocean acidification, and climate change. To mitigate the adverse effects of these emissions and limit the global temperature rise to below 2 °C, the ambitious target of achieving net zero emissions by 2050 was established in the Paris Agreement. Current state-of-the-art technologies, such as amine scrubbing, remain problematic owing to their high energy requirements, susceptibility to corrosion, and other operational challenges. Owing to the lack of suitable technologies coupled with escalating energy demand, there is still a significant amount of carbon dioxide being released into the atmosphere. Accordingly, there is an urgent need for the development of alternative technologies that offer high efficiency, low energy consumption, cost-effective installation, and operation. In this review, we delve into the emerging technologies poised to address these challenges, evaluating their maturity levels in comparison to existing commercially available solutions. Furthermore, we provide a brief overview of ongoing efforts aimed at commercializing these innovative technologies.
Transformative Natural Product-Drug Combinations Pioneering Techniques for Enhanced Efficacy Against Drug-Resistant Pathogens for drug discovery and development.
Authors: Gideon Mathew
Published: June 2024

This study aims to develop, modify, or optimize potent active compounds by utilizing combinatorial synthetic methods involving phytoconstituents from plant extracts to enhance efficacy and reduce resistance potential. We employed ATR-FTIR, GC-MS, and antibacterial results from related literature to validate these strategies. The methodology involved careful harvesting, pre-treatment, and extraction processes to ensure the quality and efficacy of plant extracts. We used various extraction methods and solvents to isolate specific phytoconstituents, followed by further purification using chromatography. The study proposes three strategies: (1) reacting single or multiple plant extracts with reagents like acids or catalysts, (2) combining plant extracts with ineffective drugs to induce structural changes that enhance antibacterial efficacy, and (3) combining plant extracts with drugs not originally intended for the target disease to explore new structural functionalities. Notable results included the synergistic effects observed in combining Psidium guajava and Calotropis procera extracts with antibiotics, significantly increasing zones of inhibition against resistant bacteria. GC-MS analysis identified numerous bioactive compounds, some with known anticancer properties, suggesting potential applications beyond antibacterial effects. Our findings demonstrate that these innovative combinatorial approaches can yield new compounds with enhanced antimicrobial properties, highlighting the potential of plant extracts in drug discovery and development. This study underscores the promise of harnessing natural products to combat multi-drug resistance, paving the way for advanced research and development in pharmaceutical applications.
Strong metal support interaction in Ru/V2O3 catalyst reduces reactant induced poisoning during succinic acid hydrogenation
Authors: Palai Yayati Naresh , Mahal Eti , Pathak Biswarup , Fukuoka Atsushi , Shrotri Abhijit
Published: June 2024

Hydrogenation of carboxylic acids to lactones and alcohols is an important reaction. However, strong adsorption of carboxylic acid on the catalyst surface leads to poisoning of the active site, demands harsher reaction condition and use of organic solvents. In this study, we demonstrate that the strong metal support interaction (SMSI) and hydrogen spillover on Ru/V2O3 can counter the poisoning effect. The Ru/V2O3 catalysts reduced at 400 C formed a layer of V2O3 over Ru. The catalyst was able to hydrogenate succinic acid to gamma-butyrolactone (GBL) in 77 % yield in the presence of water at mild conditions of 150 C and 6 h. H2-D2 exchange experiment showed that for the Ru/V2O3 without SMSI the H2 dissociation was inhibited due to the adsorption of substrate over Ru surface, whereas catalysts with SMSI effect created a barrier between the substrate and the hydrogen dissociation sites. Spillover of dissociated H2 onto the V2O3 surface was found to enhance the catalytic activity. Thermodynamics calculations using density functional theory showed that transfer of a hydride from Ru and proton from V2O3 to the substrate have a lower reaction free energy compared to that of transfer of two hydrogen atoms from a bare ruthenium surface. Additionally, weaker adsorption of substrates and easier desorption of product from the Ru/V2O3 surface increased catalytic activity compared to that of bare ruthenium surface. We show that the general concept of using SMSI to mitigate poisoning can be applied to catalytic hydrogenation of substrates that adsorb on metal sites.
Hydroboration of Terminal Alkynes Catalyzed by a Mn(I) Alkyl PCP Pincer Complex following Two Diverging Pathways
Authors: Kirchner Karl , Zobernig Daniel , Stoeger Berthold , Veiros Luis
Published: June 2024

A stereo- and regioselective Mn(I)-catalyzed hydroboration of terminal alkynes with pinacolborane (HBPin) is described. The hydroboration reaction is highly Z-selective in the case of aryl alkynes and E-selective in the case of aliphatic alkynes. The reaction requires no additives and proceeds with a catalyst loading of 1 mol % at 50 - 70oC. The most active pre-catalyst is the bench-stable alkyl Mn(I) complex cis-[Mn(PCP-iPr)(CO)2 (CH2CH2CH3)]. The catalytic process is initiated by migratory insertion of a CO ligand into the Mn-alkyl bond to yield an acyl intermediate. This species undergoes C-H and B-H bond cleavage of the alkyne (aromatic alkynes) and HBPin (in the case of aliphatic alkynes) forming the active Mn(I) acetylide and boryl catalysts [Mn(PCP-iPr)(CO)(CCR)] and [Mn(PCP-iPr)(CO)(BPin)], respectively. A broad variety of aromatic and aliphatic alkynes were efficiently and selectively borylated. Mechanistic insights are provided based on experimental data and DFT calculations. The functionalized alkenes can be used for further applications in cross-coupling reactions.
Nanoconfinement geometry of pillared V2O5 determines electrochemical ion intercalation mechanism and diffusion pathway
Authors: Karol Jameela , Ogolla Charles O. , Dillenz Manuel , Sotoudeh Mohsen , Vollmer Ellen , Zarrabeitia Maider , Groß Axel , Butz Benjamin , Fleischmann Simon
Published: June 2024

Improving electrochemical ion intercalation capacity and kinetics in layered host materials is a critical challenge to further develop lithium-ion batteries, as well as emerging cell chemistries based on ions beyond lithium. Modification of the nanoconfined interlayer space within host materials by synthetic pillaring approaches has emerged as a promising strategy, however, the resulting structural properties of host materials, host-pillar interaction, as well as evolving structure-functionality relations remain poorly understood. Herein, a series of bilayered V2O5 host materials pillared with alkyldiamine molecules of different lengths is systematically studied, resulting in tunable nanoconfinement geometry with interlayer spacings in the range of 1.0-1.9 nm. The electrochemical Li+ intercalation capacity is increased from approx. 1 to 1.5 Li+ per V2O5 in expanded host materials, and the intercalation kinetics improve with larger expansion. Operando X-ray diffraction reveals a transition of the charge storage mechanism from solid-solution Li+ intercalation in V2O5 hosts with small and medium interlayer spacings, to cointercalation of Li+ and solvent in V2O5 with the largest interlayer spacing. Density functional theory reveals a transition in Li+ diffusion pathways from 1D to 2D diffusional networks for expanded interlayers. The work reveals the impact of nanoconfinement geometry within bilayered V2O5 on the resulting Li+ intercalation properties, providing insights into both the microstructure and related functionality of pillared materials.
Histological and Histomorphometric illustration the endochondral ossification of the mandibular angle defect repair in rats after oral stimulation with bisphosphonate treatment (an in vivo study)
Authors:   College of Medicine, University of Diyala, Diyala, Iraq, Abd Alrazaq Hassan Manar , Mahdi Khalel Ansam , A. Ajwad Asmaa , hakiem tawfieq Ali
Published: June 2024

Background: Bio-phosphonates can be used to lower the risk of hip and spine fractures. Additionally, they can be used to treat Paget's disease of the bones in a variety of dosages. In the procedure that replace hyaline cartilage to bone, this procedure i.e. called endochondral ossification. It starts when mesenchymal cells from the mesoderm develop into chondrocytes. Chondrocytes multiply quickly and release an extracellular matrix to create the cartilage that serves as the model for bone. Objective: To histomorphometric illustration the endochondral ossification of the mandibular angle defect repair in rats after- oral stimulation with bisphosphonate treatment. Patients and Methods: 20 rats were used in this work and the animals were divided into the following groups: 10 Rats from the control group. The bone defect was healed naturally without medicament and 10 rats were used in the experiment, and taking the biophosphonate medication helped mend the bone defect. Every single group was studied in 7 and 14 day (5 rats for each healing period) and the surgical procedure was performed for histological and Histomorphometrically examination. The data analysis with spss statistic measure & with P vale (P ≤ 0.05). Results: Active effect of the bio-phosphate medicament in the endochondral ossification and the cell that responsible for the cartilage formation and accelerated the healing of the mandibular defect with inhibition of the bone resoption and finally decrease the time that need to full healing. Conclusion: The chemical medicament that represented by bio-phosphonate accelerated the endochondral ossification in a short time and replacement with bone in the site of the defect. Keywords: Bio-phosphonates, Cartilage, Chondrocytes, endochondral ossification.
The influence of green quality of work life, green employee engagement, and green rewards on green employee retention in SME employees
Authors: Wicaksari Putri , Saputra Asep Rokhyadi Permana , Rahmah Aminah Nur
Published: June 2024

One of the biggest challenges for employers is retaining employees, who are crucial for enhancing company performance, especially in SMEs. This research aims to determine the influence of Green Quality of Work Life, Green Employee Engagement, and Green Rewards on Green Employee Retention. The study employs a quantitative approach, sampling 204 SME employees in Indonesia, determined using the Slovin formula with a 7% margin of error. Quota sampling techniques and questionnaires distributed via Google Forms were used for data collection. The analytical tool used is SEM PLS version 4, incorporating validity and reliability testing, Fornell-Larcker Criterion, Heterotrait-Monotrait Ratio, and hypothesis testing, with responses measured on a 5-point Likert scale. The results indicate that Green Quality of Work Life does not significantly affect Green Employee Retention. However, Green Employee Engagement and Green Rewards have a significant impact on Green Employee Retention. The theoretical contribution of this research lies in the application of financial motivation theory, particularly regarding the lowest mean of the first indicator. This theory could be valuable as a moderator in future research models. Practically, the study suggests that increasing salaries and providing knowledge and training as forms of additional expertise can enhance employee retention.
W poszukiwaniu dowodów elektronicznych – europejski nakaz wydania dowodów elektronicznych oraz inne narzędzia międzynarodowego pozyskiwania danych dla potrzeb postępowania karnego
Authors: Tosza Stanisław
Published: June 2024

W lipcu 2023 r., po ponad pięcioletnich negocjacjach przyjęto rozporządzenie w sprawie europejskich nakazów wydania i europejskich nakazów zabezpieczenia dowodów elektronicznych. Rozporządzenie to wprowadza nowy paradygmat współpracy europejskiej w sprawach karnych pozwalający na bezpośrednie wiążące żądanie przez organ jednego państwa członkowskiego wydania danych przez usługodawcę w innym państwie członkowskim, co do zasady bez udziału organów tego ostatniego. Rozwiązanie to, niepozbawione kontrowersji, jest odpowiedzią na coraz bardziej palącą potrzebę efektywnych sposobów na zdobywanie danych elektronicznych na potrzeby postępowania karnego. Celem niniejszego artykułu jest przedstawienie, dlaczego zbieranie dowodów elektronicznych nastręcza wielu prawnych i praktycznych problemów, a także jak próbowano sobie z nimi radzić. Ponadto w opracowaniu przeanalizowano zapisy nowego rozporządzenia i omówiono jego najważniejsze konsekwencje.
Влияние длительности импульса воды на стехиометрию пленок HfOx, получаемых из тетракис(диметиламино)гафния
Authors: Литвинова К.И. , Поломских В.С. , Горячев А.В. , Шибалова А.А. , Рудаков Г.А.
Published: June 2024

Представлены результаты исследования слоев HfOx, получаемых из тетракис(диметиламино)гафния с различными длительностями импульсов подачи воды. С помощью методов спектральной эллипсометрии и Оже-электронной спектроскопии (ОЭС) была проведена оценка стехиометрии полученных образцов. Показано, что увеличение длительности импульса подачи воды способствует росту значения х в слое HfOx. Для длительностей импульсов подачи воды в диапазоне от 10 мс до 1000 мс получены значения х от 1.76 до 1.84. Предложен метод оценки стехиометрии слоев HfOx основанный на анализе показателя преломления.
THERMAL HISTORY OF THE PERMAFROST FORMATION IN THE SEDIMENTARY SECTION OF THE TYUMEN SUPERDEEP SG-6 WELL
Authors:   Lomonosov Moscow State University, Galushkin Yuriy
Published: June 2024

The thermal evolution of the permafrost in the sedimentary section of the Tyumen superdeep SG-6 well has been numerically reconstructed using the ICE2020 software package, which is part of the GALO flat basin modeling system. The thermal evolution of the sedimentary strata in the last 3.5 My is considered as the final stage of the basin modeling, whose formation began with continental rifting in the Late Permian. Abrupt climate changes in the late Pliocene-Holocene led to a decrease in the rock temperature by 15-20°C in the upper 1-1.5 km of the SG-6 sedimentary section. The maximum thickness of the permafrost in the study area was about 711 m, reached 2.6 Mya. The maximum thickness of the permafrost for the last ice age (23-18 thous and years ago) was 412 m, reached about 14.5 thousand years ago. According to our modeling, the modern base of the permafrost is at the depth of 311 m and is degrading with the rate about 13 m/1000 y. The results of our calculations with a database of climatic data limited to the last 50 and 100 thousand years differ markedly from the modeling results with the complete database for the last 3.5 My.
Соціологічна дефініція поняття «інтернет-мем»: подалі від «мему»
Authors: Дурнєв Олександр , Литовченко Артем
Published: June 2024

The article is devoted to the development of a sociological definition of the іnternet-meme. The emergence of the Internet as a special space of communication has provoked the emergence of new phenomena in society, which should be studied by sociology. One of these phenomena is the Internet meme, the study of which is not only practically promising in the context of digitalization and internetization of Ukrainian society, but also important for determining the possibilities of influencing social phenomena. The purpose of the article is to develop a sociological definition of the іnternet-meme based on the systematization of existing approaches and generalization of the main properties of the Internet meme. The development of a sociological definition is only the first but necessary step in the study of Internet memes and the possibilities of their impact on social reality. To achieve this goal, the article distinguishes between the concepts of «meme» and «internet-meme», taking into account the metaphorical nature of the term «meme» (coined by R. Dawkins), which is a product of the theory of Social Darwinism, and the derivative origin of the word «internet-meme». The analysis of the literature allowed the authors to distinguish the following areas of consideration of Internet memes: 1. as special information; 2. as a certain action or situation; 3. as an information capacity capable of carrying certain information units and constructs. Based on the results of the analysis, the authors have identified such properties of the іnternet-meme phenomenon as contextuality (dependence of content on form and situation), intertextuality (ability of an Internet meme to make references to other texts and templates) and schematism (transmission of concise images, meanings and information that affects the simplicity and speed of consumption of Internet memes). Based on the identified areas of consideration of Internet memes and their distinguished properties, the article offers the author's definition of an іnternet-meme as a schematic means of storing and reproducing information used on Internet platforms and discursively combining the artifacts of the sign system with the actual context of the environment or its individual elements in a template way.
Освітньо-професійні самовизначення абітурієнтів: розробка дизайну дослідження на основі угрунтованої теорії
Authors: Савченко Михайло
Published: June 2024

This paper presents the process and rationale behind decision-making during the development of a research design based on grounded theory methodology. It formulates the object, substantive area, and method of investigating the process and content of educational-vocational self-assignations by prospective students in Ukraine, defining the practical and scientific context of such research.
Grounded theory is presented as a methodological framework constituting principles such as iterativeness, inductiveness, creation of new theoretical knowledge, theoretical sampling, and more. Implementation of these principles in research needs some methodological tools to be chosen, according to the research goals, object and substantive area. Divergent approaches to grounded theory are interpreted as ways of better understanding and practical application of the aforementioned principles. So the first decision to be made by the researcher is to choose one of the approaches, the factors of which are discussed.
Proceeding to the choice of other research tools, possible factors to consider when selecting data collection and analysis methods, as well as participant selection methods, are described. In the discussion section, some potential limitations of the described study are explored, alongside ways in which classic grounded theory proposes to overcome these limitations.
Culture and Food Habits of Kharkiv Schoolchildren in the Context of a Full- Scale War (Based on the Online Survey Results)
Authors: Borysov Roman , Golikov Alexander , Sokuryanska Liudmyla
Published: June 2024

The article analyses the results of a sociological study of Kharkiv schoolchildren's food habits, conducted by the staff of the School of Sociology of V. N. Karazin Kharkiv National University as part of the FUSILLI project in March-April 2024. The study involved more than 300 high school students studying offline in Kharkiv metro school. The article describes the research methodology and presents the regulatory documents of state and local authorities on schoolchildren's nutrition. Particular attention is paid to how their food practices are reproduced and changed in the context of the full-scale Russian-Ukrainian war. The article provides data on the attitudes of Kharkiv schoolchildren towards their own health, healthy eating (including awareness of it), the influence of family and school on this; consumption of junk food and alcohol by high school students; attitudes towards collective food practices with friends, classmates, etc.; their skills and abilities to prepare food, to observe hygiene rules when eating it; and the perception of changes in nutrition (diet, regularity, cost, etc.) during a full-scale war at home and at school. The article analyses the life, including educational, plans of schoolchildren for the near future. Prospects for further research on the selected issues are determined.
Популярні маніпуляції із соціологічними даними: критичний аналіз
Authors: Гульбаршин Чепурко , Клименко Олена
Published: June 2024

This article delves into the prevalent forms of manipulation employed in quantitative sociological data. The authors highlight how the burgeoning volume of Big Data and the advancement of data processing technologies in the contemporary world have opened up new avenues for information manipulation. This manipulation often involves the active use of propaganda, disinformation, phishing, and other techniques, which exert a significant impact on society. It leads to the distortion of information through the dissemination of false and misleading data, eroding trust in authoritative sources and media outlets. Moreover, it directly impinges upon social stability, misrepresents the true picture of events, and triggers conflicts, social tensions, and mass unrest. The article expounds on the notion that manipulated data obtained from sociological research can be instrumental in crafting a fabricated reality, influencing people's thoughts and behaviors, and consequently, warping public opinion. The study of manipulative technologies has gained particular urgency in the context of Russia's armed aggression against Ukraine, which has ignited an accompanying information war. The article also devotes considerable attention to a detailed analysis of sociological theories that comprehensively illuminate the issue of the implementation of data manipulation technologies, including «doublethink», «manufacturing consent», the «spiral of silence», «reality packaging», and the «nudge».
Hospitalidade e Religião: um olhar contemporâneo
Authors: Valduga Manoela Carrillo , Oliveira Romário Loffredo de , Mattos Lydia Vilela
Published: June 2024

Este trabalho é resultado de uma atividade realizada junto aos discentes da disciplina de Hospitalidade de uma Instituição de Ensino Superior pública, localizada na Região Sudeste do Brasil. Com o objetivo de promover a reflexão sobre os impactos da hospitalidade presentes nas diversas religiões na sociedade contemporânea, solicitou-se aos alunos que questionassem amigos ou familiares que fossem fiéis ou adeptos de alguma religião, quais seriam os rituais ou normas de hospitalidade praticados nas suas respectivas religiões. Como resultado, obteve-se 105 postagens compartilhadas analisadas, de forma qualitativa, valendo-se da análise de conteúdo, com cada uma das onze religiões identificadas, além de treze respostas onde não foi possível perceber a religião. As categorias emergentes identificadas no estudo foram recepção, acolhimento, caridade, rito, comensalidade e hospedagem, termos identificados nos estudos que se referem aos valores originais da hospitalidade relativos à sacralidade do hóspede, à caridade como prática redentora dos pecados, à obrigação moral de alimentar o forasteiro, além da oferta de abrigo e descanso e do bem-receber. Cumpriu-se, assim, com o objetivo de identificar e analisar as categorias da hospitalidade presentes nas práticas religiosas relacionando o resultado empírico com os estudos teóricos sobre o tema.
Práticas de inovações na área de hotelaria hospitalar: uma revisão sistemática da literatura
Authors: Paz de Oliveira Verônica , Oneide Sausen Jorge , Charão Ferreira Gloria
Published: June 2024

O presente artigo buscou apresentar uma revisão sistemática da literatura sobre as práticas de inovação na área de hotelaria hospitalar, a partir das publicações das últimas duas décadas. Para isso, foi analisada a produção científica de 2000 a 2022, por meio da aplicação da Methodi Ordinatio. A Methodi Ordinatio é uma metodologia utilizada para a elaboração de revisão sistemática a partir de três critérios de análise, que são o número de citações do artigo, o fator de impacto da revista e o ano de publicação do artigo. Para atingir o objetivo desse estudo, foi realizada a busca efetiva nas bases de dados Biblioteca Virtual em Saúde – BVS, Scopus, Web of Science e Speell, resultando em 304 artigos. Após identificar os artigos, foi aplicada a etapa 5 da Methodi Ordinatio. Essa etapa foi realizada com o objetivo de avaliar quais dos 304 artigos abordam o tema práticas de inovação na área de hotelaria hospitalar. Os resultados corroboram com a existência de um gap teórico, mesmo sendo a inovação e a hotelaria hospitalar, temas pertinentes e de interesse de estudiosos de diversas áreas do conhecimento.