bluuebunny/crossref_metadata_2025 huggingface dataset:
Time History Analyses of a Masonry Structure for a Sustainable Technical Assessment According to Romanian Design Codes
Authors: Venghiac Vasile-Mircea , Neagu Cerasela-Panseluta , Taranu George , Rotaru Ancuta
Published: February 2023

Computer simulations are challenging in terms of modeling the appropriate behavior of brick masonry structures. These numerical simulations are becoming increasingly difficult due to several design code requirements considered for the technical assessment of brick masonry structures for rehabilitation. In Romania, many brick masonry structures have withstood powerful earthquakes during their lifetime and require rehabilitation works. This paper aims to further assess various simulation challenges regarding the boundary conditions of spandrels and masonry structural behavior. This paper presents a comparative numerical study of two different spandrel-piers scenarios: one considers the link between them as unaffected, and the other attempts to simulate the occurrence of damage by replacing the spandrel’s presence in the initial structure. The proposed model follows the “strong pier–weak spandrel model” and is aimed at practicing engineers. Models are computed with ordinary design software such as Robot Structural Analysis with 2D shells finite elements for masonry walls and, in a more complex manner, software such as Ansys with 3D solid finite elements. Time history analyses are carried out for three distinct accelerograms recorded in Romania. A comparison of the results acquired from these two models is presented and discussed. The purpose of this research is to highlight the importance of proper modeling of unreinforced brick masonry structures to optimize operational and maintenance practices.
Multi-Stage Validation of a Solar Irradiance Model Chain: An Application at High Latitudes
Authors: Manni Mattia , Nocente Alessandro , Bellmann Martin , Lobaccaro Gabriele
Published: February 2023

Evaluating how the sources of uncertainty in solar modelling (e.g., input parameters, developed model chain) can influence the results’ accuracy is one of the main challenges when applied at high latitudes. In this study, a multi-stage validation workflow is implemented around five main stages: data acquisition, data quality check, solar radiation modelling, photovoltaic energy modelling, and experimental validation. Different data sources such as satellite observations, numerical reanalysis, and on-site ground measurements are considered as inputs, while the outcomes from each step of the model chain (e.g., decomposition modelling, transposition modelling, photovoltaic energy modelling) are compared against observations recorded from the solar radiation network at the Norwegian University of Science and Technology (NTNU-Solarnet) in Trondheim (Norway). In the first and second validation stages, the decomposition and transposition models with measured input parameters show the best accuracy indicators, but they do not fulfill the validation criteria. Conversely, in the third validation stage, the photovoltaic energy models with on-site ground measurements as inputs are experimentally validated. In conclusion, at high latitudes, the most accurate results are obtained when monitored solar irradiation data are used instead of satellite observations and numerical reanalysis. Furthermore, the shortest model chain is preferred, with equal data sources.
Unleashing the Moderating Influence of Firms’ Life Cycle Stages and National Income on Capital Structure Targeting Behavior: A Roadmap towards Sustainable Development
Authors: Xin Yongrong , Amin Muhammad Sajid , Khan Hashim , Zheng Jiyuan , Quddoos Muhammad Umer
Published: February 2023

Firms adjust their capital structures to avoid financial distress and bankruptcy to sustain in the market. Asian firms have significantly different financial patterns than their USA and European counterparts. The moderation model gains a better understanding of the relationship between the model variables. We tested the moderating roles of life cycle stages and macro-economic factor gross national income per capita to find their moderating impacts on the speed of adjustment towards target capital structures of Asian manufacturing firms from 2010 to 2018. Our sample of manufacturing industries comes from the eleven Asian economies. We used the dynamic GMM model to estimate moderating impacts and applied the pooled OLS and fixed effect estimations to test the validity of the coefficient of lagged leverage. We find that life cycle stages have positive moderating impacts, and different gross national incomes per capita have no significant effects in adjusting the capital structure. We test the combined moderating impacts of the life cycle and gross national income by applying the full model. The results reveal that moderator variables significantly impact adjusting the target capital structure. From the policy perspective, it is recommended that investors should consider the firms’ life cycle stages and per capita income of the economy in making their international investment portfolios. The government should ensure requisite finance for firms at subsidized interest rates to financially support them at critical stages like introduction and decline.
A New Five-Port Energy Router Structure and Common Bus Voltage Stabilization Control Strategy
Authors: Cui Xianyang , Liu Yulong , Yuan Ding , Jin Tao , Mohamed Mohamed A.
Published: February 2023

Multi-port energy routers are a core device that integrates distributed energy sources and enables energy-to-energy interconnections. For the energy routing system, the construction of its topology, the establishment of internal model switching and the control of common bus voltage stability are the key elements of the research. In this paper, a five-port energy router structure is proposed, including a PV port, an energy storage port, a grid-connected port, a DC load port, and an AC load port. Among them, the energy storage port and the grid-connected port involve bidirectional energy flow, which are the core ports of control. For the system state, a model switching strategy is proposed based on the topology and the port energy flow direction. When the external conditions change, the system can be stabilized by means of a quick response from the energy storage port. When the energy storage is saturated, the state is switched, and the grid-connected port works to achieve system stability. The rapid stabilization of the bus voltage and the free flow of energy are achieved by combining the fast response of the model predictive control with the properties of multiple model switching. Finally, the feasibility of this energy router topology and control strategy is verified by building simulations in MATLAB.
Experimental Study on Liquefaction Characteristics of Saturated Sands Mixed with Fly Ash and Tire Crumb Rubber
Authors: Zeybek Abdülhakim , Eyin Murat
Published: February 2023

The liquefaction of saturated sandy soils during dynamic loading can inflict excessive damage on the structures, leading to significant human and economic losses. Recycling and reusing industrial waste materials may offer a sustainable and economic solution to this problem. This study investigates the influence of two waste materials, namely, recycled fly ash and tire crumb rubber, on the liquefaction characteristics of sand. For this purpose, loose and medium-dense triaxial specimens were prepared using sand–fly ash mixtures containing 0–40% of fly ash and sand–tire crumb rubber mixtures containing 0–30% of crumb rubber. The liquefaction characteristics of the specimens were examined through a series of stress-controlled, undrained, dynamic triaxial tests. The tests were conducted at 1 Hz loading frequency and under initial effective confining stresses of 50 and 100 kPa. The experimental results showed that, at a similar relative density, the liquefaction resistance of the sand–fly ash specimens decreased as the fly ash content (FA) increased up to about 20%; then, it slightly increased until FA reached 40%. Sand-only specimens showed greater liquefaction resistance than sand–fly ash specimens. The liquefaction resistance of the sand–tire crumb rubber specimens was enhanced by increasing the rubber content (RC) in the mixtures. It was found that the increasing liquefaction resistance of sand with the addition of tire crumb rubber was more noticeable under higher confining stresses.
Correction: Amaya et al. What Do We Know about the Use of the Walk-Along Method to Identify the Perceived Neighborhood Environment Correlates of Walking Activity in Healthy Older Adults: Methodological Considerations Related to Data Collection—A Systematic Review. Sustainability 2022, 14, 11792
Authors: Amaya Valkiria , Chardon Matthias , Klein Helen , Moulaert Thibauld , Vuillerme Nicolas
Published: February 2023

In the original article [...]
Nano-and Microparticles of Carbon as a Tool for Determining the Uniformity of a Diffuse Discharge Exposure
Authors: Lomaev Mikhail , Tarasenko Victor , Shulepov Mikhail , Beloplotov Dmitry , Sorokin Dmitry
Published: February 2023

At present, a diffuse discharge plasma of air and other gases at atmospheric pressure is widely used for the surface treatment of various materials. However, in many papers it is stated that erosion damages occur on flat anodes (targets) as a result of the discharge plasma action. The shape of these damages depends on the discharge mode. In this study, the exposure uniformity was investigated by using nano- and micro-sized carbon particles deposited on a flat copper anode (a carbon layer). The diffuse discharge was formed in a ‘point-plane’ gap with a non-uniform electric field strength distribution by applying voltage pulses with an amplitude of 18 kV. It has been established that at a gap width of 8–10 mm, an imprint of the discharge plasma on the carbon layer deposited on a copper anode has no traces of local erosion. In order for erosion to occur on the surface of the anode in the form of uniformly distributed microcraters, it is necessary to increase the current density at the anode, for example, by decreasing the gap width. When decreasing the gap width to 6 mm and less, spark channels occur. They damage both the carbon layer and the copper anode in its central part. It has been shown that there are three characteristic zones: a color-changing peripheral part of the carbon layer, a decarbonized central part of the anode, and an annular zone located between the central and peripheral parts and containing individual microcraters.
Recent Advances in Multi-Phase Electric Drives Model Predictive Control in Renewable Energy Application: A State-of-the-Art Review
Authors: Xue Zhiwei , Niu Shuangxia , Chau Aten Man Ho , Luo Yixiao , Lin Hongjian , Li Xianglin
Published: February 2023

Model predictive control (MPC) technology for multi-phase electric drives has received increasing attention in modern industries, especially in electric vehicles, marine electrical propulsion, and wind power generation. However, MPC has several challenges in controlling multi-phase electric drives, including the design of weighting factors, high computational complexity, large harmonic currents, heavy reliance on the system model, fault-tolerant control operation, common-mode voltage, and zero-sequence current hazards. Therefore, this paper gives a comprehensive review of the latest and most effective solutions to the existing major technical challenges and prospects for the future trends of MPC for multi-phase electric drives.
THE MUSEUM OF ILYICH IRON AND STEEL WORKS HISTORY AS A CULTURAL AND EDUCATIONAL PLATFORM OF MARIUPOL AND ITS DISTRICTS
Authors: Badasen Iryna , Badasen Isydor ,   Museum of History of Ilyich Iron and Steel Works,   Mariupol State University
Published: February 2023

The article analyzes the cultural and educational activities of the Museum of History of the Ilyich Iron and Steel Works in Mariupol and its district. For this purpose, extensive material on the history of creation and development of the enterprise is presented. Based on archival documents, the authors of the study investigate its important impact on the social status and cultural life of Mariupol and its districts, which has exceeded one hundred years. A special place in this activity belongs to the Museum of History of Ilyich Iron and Steel Works, which, having begun its activities on April 19, 1968 in a room of only 15 square metres, today has 12 exhibition halls and 2 exhibition galleries. After major repairs and reconstruction in 2017, the museum receives many visitors, including schoolchildren, students, employees of the plant and their families, official and unofficial delegations, business partners and honored guests of Mariupol. Unforgettable impressions and aesthetic pleasure from the modern museum gives visitors the opportunity to become acquainted with both the history of the enterprise and its current realities, get involved in the heroic work of workers of the flagship of Ukrainian metallurgy by means meaningful cultural and educational activities of the museum. This is of particular interest to the youth of Mariupol and its districts, many of whom will come to work in the workshops for the benefit of the Motherland in the future. It is no exception that the museum is constantly approached by newspaper correspondents, journalists of various levels, especially when there is a need to prepare various articles and video reports, because many original exhibits of the museum are unique sources of information on the history of Mariupol and its inhabitants. . And this is quite logical, because the development of the city and its infrastructure, the welfare of various segments of the population and prospects for the future largely (if not decisively) depend on the stable and profitable operation of the Ilyich Iron and Steel Works. Therefore, museum events help to form the cultural and historical environment of Mariupol and its districts. As a result, the residents of the city received a modern cultural and educational centre, which brings them positive emotions and occupies an important place in the leisure industry
UNIFICATION OF RECORDS MANAGEMENT IN THE INFORMATION SPECIALIST PROFESSIONAL CULTURE
Authors: Petrova Iryna ,   Mariupol State University
Published: February 2023

The article defines the relevance of the formation of professional culture of the information specialist, caused by the approval of the specialty «Information, library and archival affairs». This event provoked a discussion on the specification of the content of the information affair, as well as an understanding of the need to create a modern, complex and universal model of an information specialist. Based on the analysis of higher education standards in the specialty 029 Information, library and archival affairs of bachelor’s and master’s level of higher education, scientific publications devoted to the training of higher education applicants in this specialty and the professional culture of records managers, professional competencies that should be appropriate in the professional (information specialist) were established. The features of understanding the concept “unification of records management” were considered, its content, ability to implement and use promote the formation of professional culture of the information specialist within the specialty “Information, library and archival affairs”. The current state of the regulatory framework for the organization of documentation of management information and organizing work with official documents in today’s Ukraine as a factor that determines the level of unification of records management and influences the formation of the professional culture of the information specialist were analyzed. Regulation of office work based on rules specified in regulatory legal acts promotes compliance to the principles of quality, efficiency, lack of duplication of operations in working with official documents that directly affects the efficiency of modern Ukrainian authorities, institutions, enterprises, organizations
Autoviolência por intoxicação exógena em uma Unidade de Pronto Atendimento no sul do Brasil
Authors: De Barros Eduarda Pereira , Tsutsui Luísa Franco , Campese Ibrahin Henrique Balais
Published: February 2023

A autointoxicação exógena é uma causa prevalente de violência autoinfligida. A população jovem, entre 15 e 29 anos, é a que mais sofre dessa problemática, com os casos sendo cada vez mais preocupantes. No serviço de urgência e emergência, muitos pacientes são admitidos devido a autoagressão, per meio de intoxicação exógena com diversas substâncias. Trata-se de um estudo epidemiológico, retrospectivo e analítico, realizado na Unidade de Pronto Atendimento do município de Sarandi-PR, um serviço de referência em urgência e emergência. A amostra será constituída por todas as notificações de intoxicação exógena do SINAN realizados pelos enfermeiros da Unidade no período de 2018-2020. São esperados resultados que apontem as características acerca da epidemiologia da autoviolência por intoxicação exógena, em uma UPA no sul do Brasil, segundo estado com maior incidência de tentativas de suicídio. Além disso, espera-se encontra e apontar os meios exógenos mais utilizados para a intoxicação, para que ações sobre prevenção e promoção possam ser implantadas/efetivadas na região.
Interleukin-6 Gene Polymorphisms Influencing in hematological indices from sickle cell Anemia Patients
Authors: Luciano Monique de Moraes Pinto , Albuquerque Cinthia Cristina Matheus Xerez , De Moura Neto José Pereira
Published: February 2023

The homozygous hemoglobin SS is characterized Sickle Cell Anemia (SCA), altering the original structure of erythrocytes to a sickle shape.  The hemoglobinopathies encompass all genetic diseases of hemoglobin and the SCA is the one that presents the greatest clinical manifestations variability and also the most severe ones, causing chronic hemolysis, vaso-occlusive crises and severe anemia in patients. The present study aimed to investigate the role of rs2069832, rs2069835, rs2069840, rs2069845 and rs2069849 polymorphisms in the Interleukin-6 gene in the hematological values of SCA patients treated at Fundação HEMOAM, Manaus, AM. The inclusion of patients was carried out through outpatient care at HEMOAM. Genomic DNA was extracted using the QIAamp DNA Mini Kit (Qiagen) and molecular analyzes by TaqMan® probes on Applied Biosystems QuantStudio 6 Flex Real-Time PCR System. A total of 277 SCA patients were included in this study, having the female gender having a minimally higher frequency (55.3%). The mean age at diagnosis was approximately three years old, with brown race being the most predominant (77.6%). The rs2069832_AA and rs2069845_AA genotypes showed high values for red blood cell, hemoglobin and hematocrit indices, by having an important role as a protective factor for hemolysis in these patients. While the rs2069835_CC genotype showed decreased values for the same hematimetric indices, demonstrating to be a potential risk factor for increased hemolysis. No significant correlation in hematimetric indices was observed for the rs2069840 and rs2069849 genotypes. There are few studies correlating the genetic variants of the IL-6 gene in SCA in the state of Amazonas, however, it is known that IL-6 is involved in cell proliferation and greater response to inflammatory cytokines, and may modulate the clinical response in these patients, such as chronic hemolysis, vaso-occlusion and infections. Our work demonstrated associations of risk and protective IL-6 genotypes for possible hemolysis in patients with sickle cell anemia. We understand that an investigation with a larger number of patients would be recommended to elucidate the roles of the studied polymorphisms in sickle cell anemia. In addition, elucidating the role of Il-6 in sickle cell anemia may lead to the development of new strategies and therapies to prevent the systemic effects of excessive cytokine production and, consequently, reduce the severity of crises in these patients, providing better prognosis, clinical follow-up and welfare.
Розвиток сервісу «ДІЯ» в умовах війни. Нові можливості пубілчного управління
Authors: Tymchenko Maria
Published: February 2023

У статті досліджується процес діджиталізації та цифровізації публічного управління України на прикладі екосистеми «Дія». Приділяється увага  розвитку сервісу «Дія» під час воєнного стану та викликам і можливостям, що виникли через повномасштабне вторгнення. 

Активна робота в напрямку цифровізації України та державного управління, особливо набула значення в останні роки. Одним із головних напрямків удосконалення українського державного управління є модернізація сфери публічних послуг на засадах реалізації принципу «сервісної держави».

У статті використані загальнонаукові методи: опис, аналіз, синтез, узагальнення, класифікація тощо, а також системний та функціональний підходи. Інформаційною базою дослідження слугували вітчизняні та закордонні видання, матеріали преси та нормативно-правові акти національного та міжнародного рівнів.

Дослідження показало, що у результаті змін у співпраці та комунікації між владою і суспільством створено та вдосконалено інструменти для цієї взаємодії. Також відбулись трансформації цілей та змісту комунікації, що є вкрай необхідною під час повномасштабного вторгнення.

Запропоновано систематизацію нових послуг, доступних на платформах всіх проєктів Дії. Було досліджено тенденцію активного впровадження цифрових трансформацій на державному рівні в Україні на тлі повномасштабного вторгнення. Було визначено, що Дія поглибила та розширила своє значення в соціальному житті українців, ввівши чимало нових, корисних, затребуваних послуг та документів.
РОЛЬ ПІСЕННОГО МИСТЕЦТВА У ФОРМУВАННІ НАЦІОНАЛЬНОЇ САМОСВІДОМОСТІ МОЛОДІ В КНР
Authors: Хрик М. В.
Published: February 2023

Dissertations, monographs, analytical works, publications in periodicals
by German authors are analyzed in the article. It was found that these works
revealed the connection between political culture and political education, defined
the principles and methods of political and civic education, and the features of
civic education for students with special educational needs
ОСОБЛИВОСТІ РОЗВИТКУ ФОРТЕПІАННОЇ ОСВІТИ В КНР НА ПОЧАТКУ ХХІ СТОЛІТТЯ
Authors: Чжан Цзе
Published: February 2023

The article analyzes the current state of development of piano education in
higher education institutions in the People’s Republic of China. The peculiarities
of the development of the studied phenomenon are highlighted — an increase in
the number of institutions providing piano education and those wishing to study
in them, an expansion of the stylistic content of piano education, an increase in
the production capacity of musical instruments and specialists engaged in tuning
them. The existing difficulties and shortcomings in the development of piano
education in the People’s Republic of China at the beginning of the 21st century
have been identified and analyzed
ВИХОВАННЯ ДУХОВНО-МОРАЛЬНИХ ЦІННОСТЕЙ ОСОБИСТОСТІ ЯК СУСПІЛЬНО-ОСВІТНІЙ ПРІОРИТЕТ
Authors: Шулигіна Р. А.
Published: February 2023

in the final version of the article, the problems of educating, the spiritual and
moral values of the individual are actualized; important aspects of construction
are reviled , educational process based on subject-subject relationships of the
teacher and students, parents and children; approaches to the classification of
the moral qualities are considered and attention is focused on the important role
of the family in orientation towards the realization of social and educational
priorities.
Gambaran Citra Tubuh Remaja Perempuan Indonesia
Authors: Nasywa Alfiyyah  , Hari Setyowibowo  , Purba Fredrick Dermawan
Published: February 2023

Ketika remaja mengalami perubahan fisik yang signifikan dalam tubuh mereka selama masa pubertas, mereka cenderung mengalami persepsi yang sangat dinamis terhadap citra tubuh. Perkembangan citra tubuh remaja dipengaruhi oleh beberapa faktor, termasuk di antaranya jenis kelamin perempuan dan pesan media. Pada era ini, pesan media lebih banyak diakses melalui media sosial. Penggunaan media sosial dapat memperkuat fokus pada tubuh sebagai objek sehingga remaja yang mengakses media sosial cenderung mengembangkan citra tubuh yang negatif. Penelitian ini bertujuan untuk melihat gambaran citra tubuh remaja awal perempuan yang mengakses minimal satu jenis media sosial setiap harinya. Populasi dalam penelitian ini adalah remaja awal perempuan yang tinggal di Bandung Raya. Responden dalam penelitian ini berjumlah 242 remaja berusia 12-15 tahun yang tinggal di Bandung Raya yang didapatkan melalui teknik convenience sampling.  Kuesioner yang digunakan dalam penelitian ini adalah Body Appreciation Scale 2 (BAS-2) yang diadaptasi oleh peneliti ke dalam Bahasa Indonesia berdasarkan panduan Beaton. Selain BAS-2, peneliti juga menggunakan data demografi di antaranya durasi penggunaan media sosial dan konten yang diakses. Pengisian kuesioner dilakukan secara daring melalui sekolah-sekolah yang tersebar di Bandung Raya. Data yang terkumpul dianalisis secara deskriptif kuantitatif. Hasil penelitian menunjukkan bahwa sebagian besar responden memiliki citra tubuh pada kategori tinggi. Mayoritas responden mengakses media sosial selama 1-5 jam per hari dengan salah satu konten yang diakses terkait perawatan tubuh dan kecantikan serta fashion.
AUDITORIA EM ENFERMAGEM:IMPORTÂNCIA PARA A QUALIDADE DOS SERVIÇOS DE SAÚDE
Authors: DA SILVA MACHADO BARRADAS ARIEL
Published: February 2023

This work deals with a bibliographic review on auditing in nursing. When the institution has the purpose of efficient management, the audit can be very useful, since it acts in prevention and correction. Therefore, it helps not only for the benefit of the institution, but also for the quality of care, the credibility of the service, among other things. Thus, the problem arises: What is the importance of auditing in nursing for the quality of health services? With the general objective of describing the importance of auditing in nursing for the quality of health services. Specifically, the objective was to conceptualize auditing in health, learn about quality in health. Through this study it was possible to perceive that the audit can be a very useful tool for efficient management in health, due to the mentioned facts it is possible to conclude that the work achieved the proposed objectives.
Pengembangan Media Pembelajaran Bulutangkis Menggunakan Video Based Learning pada Siswa Kelas VIII SMP Negeri 3 Sungailiat
Authors: Igo Igo apriangga
Published: February 2023

The background of this research problem is that students' knowledge about badminton is still lacking, so students find it difficult to do badminton techniques, limited facilities such as rackets and shuttlecocks, lack of use of media that is in accordance with the characteristics of junior high school students. This study aims to determine the process of developing learning media using video based learning to help learning PJOK Badminton material and determine the feasibility of learning media using video based learning This research is an R&D development research with a reference from Dick & Carey, consisting of ten stages. Research from material experts gets a percentage assessment of 84% with the "Very Valid" category, media experts get an assessment of 83% in the "Very Valid" category and teacher assessments get an assessment of 87% in the "Very Valid" category. one-on-one trials received an assessment of 90% in the "Very Good" category, small group trials received an assessment of 88% in the "Very Good" category and large group trials received an assessment of 86% in the "Very Good" category.
How to teach algebra: A suggestion for a curriculum
Authors: Oldenburg Reinhard
Published: February 2023

Both the need for algebra as a gateway to further applications of mathematics as well as the difficulties in teaching algebra are universally acknowledged. After characterizing what algebra is and how its structures can be described in a simply consistent manner, the paper goes on to develop a curriculum including concrete activities that intend to address issues of motivation, correctness, and sustainability.
Vacunas anticovid y trombosis: el miedo en las redes sociales
Authors: Arce Garcia Sergio , Cano Garcinuño María Isabel , Quiles Cano Cristina , Cano Pérez Julia
Published: February 2023

Fundamentos: El presente artículo tiene como objetivo analizar la relación existente en la red social Twitter en español entre trombos y vacunas anticovid. Métodos: Se utilizaron técnicas de machine learning y análisis estadístico masivo para la determinación de redes sociales formadas, sus relaciones, análisis de sentimientos y emociones y discursos principales por minería de texto durante cuatro meses. Para ello se recogieron 915.825 mensajes que hablaran de trombosis a lo largo de los cuatro primeros meses del año 2021. Resultados: Se encontró un aumento muy destacado de mensajes alrededor desde mediados de marzo e incrementándose fuertemente a principios de abril, coincidiendo con los casos detectados y suspensiones temporales de ciertas vacunas en Estados Unidos y Europa. El principal de mensajes procede de España, aunque México centra el debate en Latinoamérica. Conclusiones: Se pudieron determinar un aumento de mensajes de alta carga emocional, principalmente negativa, así como mensajes desinformativos y conspirativos especialmente desde unos grupos sin referentes significativos. Los difusores de noticias de desinformación sobre vacunas son enviados por pequeñas cuentas nano-influencers o cuentas falsas utilizando posibles técnicas astroturfing.
Effectiveness of Cetylpyridinium Chloride in Reducing the Growth of Bacteria that Cause Periodontal Disease
Authors: Setiawatie Ernie M. , Valentina Rizka , Meiliana Rihandhita S.
Published: February 2023

Abstract: Periodontal disease is a common dental and oral health problem in the community which is usually caused by Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis, and Streptococcus mutans. This study aimed to provide information about the cetylpyridinium chloride (CPC) which can inhibit the growth of bacteria that cause periodontal disease. This was a narrative review literature study sourced from Google Scholar, Science Direct, and Pubmed (MEDLINE) databases. The keywords used were CPC inhibition, antimicrobial agent, periodontal pathogen bacteria, periodontal disease, and mouthwash. The results obtained 31 articles with appropriate titles and three review articles. Cetylpyridinium chloride is a mouthwash containing a monocationic quaternary ammonium compound consisting of quaternary nitrogen with a positive charge. with a positive charge. The molecular formula of CPC was C12H38CIN, and the molecular weight was 340g/mol with the IUPAC name 1-hexadecylpyridinium chloride. Cetylpyridinium chloride could inhibit the growth of oral pathogenic bacteria by adsorbing negative charges from bacteria, increasing the permeability of bacterial cell walls, decreasing cell metabolism, damaging cell membranes, and reducing the attachment of bacteria to the tooth surface which could reduce the growth of bacterial cells as the cause of periodontal disease. In conclusion, cetylpyridinium chloride is a potent antibacterial agent suitable used as a mouthwash to prevent periodontal disease.
Keywords: cetylpyridinium chloride inhibition; antimicrobial agent; periodontal pathogen bacteria; periodontal disease; mouthwash
Influence of oxygen vacancy and metal–semiconductor contact on the device performance of amorphous gallium oxide photodetectors
Authors: Hu Shudong , Han Dongyang , Jiang Kemin , Liu Ningtao , Wang Wei , Zhang Jinfu , Liu Kaisen , Zhang Tan , Zhang Wenrui , Ye Jichun
Published: February 2023

Here we investigate the influence of the oxygen vacancy content and the electrode contact on the performance of deep ultraviolet photodetectors based on amorphous Ga2O3 films. The fine-tuning of the oxygen ratio effectively reduces the oxygen vacancy content, which obtains optimized device performance with a responsivity of 5.78 A W−1 and a rise/fall time of 301/89 ms. The metal contact formation and its impact on the device performance are further studied. Compared to the Ohmic-type device using Ti electrodes, the Schottky-type devices using Au and Al electrodes exhibit a shorter rise time and a lower dark current.
Role of impact ionization and self-consistent tunnel injection in Schottky-barrier diodes operating under strong reverse-bias conditions
Authors: González Tomás , Orfao Beatriz , Pérez Susana , Mateos Javier , Vasallo Beatriz G.
Published: February 2023

This work shows that for a correct analysis of Schottky barrier diodes operating under strong reverse-bias conditions, it is necessary to account for the self-consistency between the shape of the energy barrier and carrier concentration in the depletion region since the full-depletion approximation fails to estimate the current. This happens for very high applied voltages, at which impact ionization by electrons and holes must also be considered. Two example GaN diodes with different doping concentrations and barrier heights are analyzed. The results are relevant to regions of the diodes where a very high tunnel injection takes place, like the contact edge or surface inhomogeneities.
Design of a Wavelength-Meter with Measurement Range up to 100nm and 8 pm precision
Authors: Volpini Andrea , Massella Damiano , Zyskowski Marcin , Soares Francisco , Diaz-Otero Francisco J.
Published: February 2023

Hereby, we present a new design for an integrated wavelength meter. The device works by coupling an unknown monochromatic light source to four microring resonators of different free spectral range containing a phase modulator. The output of each ring is coupled to a separate photodiode (PD). The setup relies on modulating the spectral position of ring resonances while monitoring transmitted power with PDs. Thanks to data acquired during calibration, is possible to relate such output powers to a unique wavelength. While state-of the art designs allow for either high precision or broad range, our system does not require any tradeoff between those two characteristic, achieving up to 8 pm precision (for a ring Q factor equal to 2*10^5) and 100 nm of wavelength range. We will discuss how losses influence the measurement speed and the resolution of the device. The structure, although platform independent, will be realized in InP.
Cost-effective Mobile Solution for Autonomous and Continuous Vital Signs Monitoring
Authors: Huang Hen-Wei , Chen Jack , Rupp Philipp , Ehmke Claas , Chai Peter , dhar riya , Ballinger Ian , Traverso Giovanni
Published: February 2023

The Covid-19 Pandemic has renewed interest in contactless vital signs monitoring using state-of-the-art computer vision, which can efficiently screen for symptoms while reducing the risk of disease transmission. Despite the promising perfor- mance, the use of static camera setups requires subjects to remain static inside a field of view (FoV) for a pre-specified duration. Due to inconsistent ambient environmental conditions, the transit of individuals through the FoV, and the time it may take to triage individuals, the widespread adoption of static camera systems to continuously monitor vital signs has had suboptimal uptake. Robotic systems enable autonomous and continuous monitoring, but these require expensive cameras, computers, and robotic platforms, limiting widespread deployment. In response, we propose a cost-effective and scalable robotic solution consisting of a suite of commercial, off-the-shelf wireless cameras for capturing photoplethysmography (PPG) on ambulatory subjects linked to a single computer that supervises the cameras to compute the vital signs of subjects. Throughout a set of careful investigations of each individual step of the wireless machine vision camera and computer, bottlenecks constraining wireless live-streaming of high-quality PPG information are identified and those are addressed by a hybrid centralized/decentralized wireless machine vision protocol. Our results demonstrate that the proposed cost-effective wireless camera achieves equivalent remote-PPG accuracy to its costly, USB3 counterparts (mean error: 5.0 BMP vs. 4.7 BPM) by means of the hybrid camera protocol which boosts the overall frame rate to 17 FPS. In contrast, using the standard method that captures the PPG with the same spatial resolution can only achieve 1 FPS. In addition, this work also elucidates how varying the distance, image pixel density, frame rate, image compression, image downsampling, and color depth affect the rPPG performance. For each of the effects, we also discuss potential solutions for the cost-effective setup.
Hybrid Models for Knowledge Tracing: a Systematic Literature Review
Authors: Zanellati Andrea , Mitri Daniele Di , Gabbrielli maurizio , Levrini Olivia
Published: February 2023

Knowledge Tracing is a well-known problem often tackled through purely data-driven approaches. In recent years, many advances have been made in research with various machine learning and deep learning techniques. Despite their satisfactory performance, they have some pitfalls, e.g. modeling one skill at a time, ignoring the relationships between different skills, or inconsistency for the predictions, i.e. sudden spikes and falls across time steps. For this reason, hybrid machine-learning techniques have also been explored. With this systematic literature review, we aim to illustrate this field's state of the art. Specifically, we want to identify the potential and the frontiers in integrating prior knowledge sources in the traditional machine learning pipeline as a supplement to the normally considered data. We applied a qualitative analysis to distill a taxonomy with three dimensions: knowledge source, knowledge representation, and knowledge integration. Exploiting this taxonomy, we also conducted a quantitative analysis to detect the most common approaches.
Genetic diversity of Siberian bovine coronavirus isolates (Coronaviridae: Coronavirinae: Betacoronavirus-1: Bovine-Like coronaviruses)
Authors: Glotov Alexander G. , Nefedchenko Aleksej V. , Yuzhakov Anton G. , Koteneva Svetlana V. , Glotova Tatyana I. , Komina Alina K. , Krasnikov Nikita Yu.
Published: February 2023

Introduction. Bovine coronaviruses (BCoVs) are causative agents of diarrhea, respiratory diseases in calves and winter cow dysentery. The study of genetic diversity of these viruses is topical issue.
The purpose of the research is studying the genetic diversity of BCoV isolates circulating among dairy cattle in Siberia.
Materials and methods. Specimens used in this study were collected from animals that died or was forcedly slaughtered before the start of the study. The target for amplification were nucleotide sequences of S and N gene regions.
Results. Based on the results of RT-PCR testing, virus genome was present in 16.3% of samples from calves with diarrheal syndrome and in 9.9% with respiratory syndrome. The nucleotide sequences of S gene region were determined for 18 isolates, and N gene sequences - for 12 isolates. Based on S gene, isolates were divided into two clades each containing two subclades. First subclade of first clade (European line) included 11 isolates. Second one included classic strains Quebec and Mebus, strains from Europe, USA and Korea, but none of sequences from this study belonged to this subclade. 6 isolates belonged to first subclade of second clade (American-Asian line). Second subclade (mixed line) included one isolate. N gene sequences formed two clades, one of them included two subclades. First subclade included 3 isolates (American-Asian line), and second subclade (mixed) included one isolate. Second clade (mixed) included 8 sequences. No differences in phylogenetic grouping between intestinal and respiratory isolates, as well as according to their geographic origin were identified.
Conclusion. The studied population of BCoV isolates is heterogeneous. Nucleotide sequence analysis is a useful tool for studying molecular epidemiology of BCoV. It can be beneficial for choice of vaccines to be used in a particular geographic region.
Eco-aesthetics. The art and aesthetics of relations from a post-pandemic perspective
Authors: Fronzi Giacomo
Published: February 2023

«What does art mean in a world where urgency predominates, a world that now exhausts its annual quota of renewable resources in July?» (Bourriaud [2021]: 7; my translation). The climate crisis (which began in the last century, but whose consequences have become increasingly worrying in recent years), the Covid 19 pandemic that struck the planet in 2020 and the recent conflict between Russia and Ukraine in the heart of Europe are epoch-making phenomena that are inevitably reshaping the present and future of human societies. With respect to this situation, is art being called into question or, on the contrary, is it an essential tool for rethinking the world of tomorrow? More specifically, is public art today a lost cause or an opportunity? In this article, I will try to place these questions within the framework of what we might call eco-aesthetics, which has an essential connection to the category of “relations”.
« …Mais, au contraire, seulement une – arabesque ». Autour d’un motif d’Étienne Souriau
Authors: Azzariti Fumaroli Luigi
Published: February 2023

Taking the arabesque as  referent, the article proposes to investigate its meaning in its various meanings, starting with the musical and then continuing with the artistic and literary, in order to highlight how, especially in the literary sphere, Souriau proposes, through this figure, to examine the conditions of possibility of the interweaving of phonetic, semantic and morphological inventions that sustantiate language, but that nevertheless can never reach the threshold of saying. And which indeed seems to testify to how there is always something that remains hidden in language: an intuitive presence, an image that arrives suddenly.
Is Souriau Also Among the Sophists?
Authors: Boyle Casey
Published: February 2023

Whether viewed as unduly complex or necessarily ornate, Étienne Souriau’s written style accents the importance of placing artistic form in conversation with intellectual content. In seeking to better understand Souriau’s advocacy for a philosophy of instauration – the process through which an existence gains in existential formality – this essay examines how aesthetic tropes and devices order ontological meaning. First, it links Barbara Cassin’s case for sophistical practice to Souriau’s advocation for ontological multiplicity. The essay then reads the 1956 essay “Of the Mode of Existence of the Work To-Be-Made” and Souriau’s adjacent work as consciously rhetorical and profoundly aesthetic attempts to recruit others to his philosophical commitments. This account further discerns  an array of rhetorical devices (e.g. chiasmus) in Souriau’s work that function not merely to adorn description but rather to order an experience of the work-to-be-made. Attending to turns of language as contributing to reality necessarily raises questions of responsibility, so the essay’s then reconsiders philosophy’s long-standing charge of sophistic irresponsibility alongside Souriau’s skewing of agency and choice through instauration. The essay concludes by considering the implications of Souriau’s central concepts as filtered through sophistical practice as not incidental to philosophical aesthetics but a charge to philosophy to be responsible for promoting lesser existences in and across multiple modes.
Souriau, Dufrenne and the notion of contemplation
Authors: Saison Maryvonne
Published: February 2023

En 1961, un article de Souriau relevant une difficulté signalée en 1953 par Dufrenne porte sur la juste part à accorder à la contemplation dans la relation à l’art. La zone d’ombre concernant la relation humaine et intellectuelle entre les deux hommes fera l’objet d’un premier examen. L’hypothèse souralienne d’une transmutation de conceptions théologiques dans le domaine de l’art sera ensuite examinée par rapport à Dufrenne sans évacuer la question de sa pertinence par rapport aux études phénoménologiques ultérieures. La question de la relation à l’art, telle que Souriau l’envisage ressurgira dans sa pleine actualité jusque dans le face à face avec les œuvres.
Etienne Souriau and the multiplicity of worlds: an experiment on the threshold of indeterminacy
Authors: Ple Noelie
Published: February 2023

By focusing on the shifts brought about by the formulation of different modes of existence, this article explores the gesture posed by Etienne Souriau’s philosophy. Starting from questions such as: What does it change for the multitude of existences to be named in this way? What difference does it make? The question here will be to address the necessity of such a pluralist ontology with regard to our contemporaneity. The challenge is to understand the necessity of such a formula, to draw the problematic threads that allow us to situate this necessity in a larger set of questions, or rather, ways of asking them.
Popular education before and after covid: Neapolitan experiences
Authors: De Simone Mariarosaria , Papulino Marta
Published: February 2023

In this article, we will try to follow a narrative trajectory that, through the first-person story of Marta as a volunteer educator, introduces some of the territorial educational experiences organized by local commons in the city of Naples. The nature of these spaces tries to put the needs of the common individual at the center and each educational reality narrated, each in its own way, tries to create community through dialogic actions with the people living in the neighborhood, engaging in the promotion of paths of mutual help, built from below starting by sharing practices of community support. In the story of educational experiences, experiences that have abruptly interrupted with the pandemic, we will let ourselves be supported by the theoretical frame of reference of Paulo Freire’s critical pedagogy, just as we will try to reflect, in terms of spaces as horizons of educationally sustainable possibilities, the post-pandemic situation.

 

L’educazione popolare prima e dopo il covid: esperienze partenopee.

In questo articolo cercheremo di percorrere una traiettoria narrativa che, attraverso il racconto in prima persona di Marta in qualità di educatrice volontaria, introduca ad alcune delle esperienze educative territoriali organizzate dai beni comuni presenti nel territorio di Napoli. La natura di questi spazi prova a mettere al centro i bisogni del cittadino ed ogni realtà educativa narrata, ognuna a suo modo, cerca di creare comunità attraverso azioni dialogiche con gli abitanti dei diversi quartieri, impegnandosi nella promozione di percorsi di mutuo aiuto, costruiti dal basso a partire dalla condivisione di pratiche a supporto della comunità. Nel racconto delle esperienze educative, esperienze che si sono interrotte bruscamente con la pandemia, ci lasceremo supportare dalla cornice di riferimento teorico della pedagogia critica di Paulo Freire, così come proveremo a riflettere, in termini di spazi quali orizzonti di possibilità educativamente sostenibili, la situazione post-pandemica.