bluuebunny/crossref_metadata_2025 huggingface dataset:
Rules for selecting orders from the precedence in production systems
Authors:   Zagidullin R.R.
Published: March 2023

Analytical rules for selecting orders from the precedence by using heuristic scheduling algorithms in MES and APS class systems are considered. The proposed sampling rules are presented for single-stage and multistage planning systems, subjected to the intensity of orders.

Keywords
heuristic scheduling algorithm, order intensity coefficient, one-stage systems, multi-stage systems, slack time, directive due dates
ANALYSIS OF REACTIVE POWER COMPENSATION WITH PASSIVE CIRCUIT ELEMENTS FOR GRID-CONNECTED PHOTOVOLTAIC PLANTS
Authors:   ", GROȘANU Dan -Valeriu ,   University POLITEHNICA of Bucharest Faculty of Electrical Engineering", CAZACU Emil ,   "University POLITEHNICA of Bucharest Faculty of Electrical Engineering", PETRESCU Lucian ,   "University POLITEHNICA of Bucharest Faculty of Electrical Engineering"
Published: March 2023

The work represents the optimized solution for the selection of the reactive power compensation system for an on-grid photovoltaic plant with an installed power of 8 MW. The reactive power, of significant values, is mainly due to the length of the medium voltage cable that connects the photovoltaic plant to the connection station located at a distance of 10 km. Thus, a critical analysis is presented, with a technical-economic foundation of power factor correction solutions. The operation of the power plant's correction system was monitored both during the day (while the panels were lit) and at night (without the panels lit). Special attention was paid to the influence of the energy quality parameters regarding the additional consumptions of the plant in the two situations. It was also considered to find an optimal solution for the maximum safety of the equipment in order to avoid reaching the critical operating temperature of the transformers in the plant. In addition, a detailed economic study was also carried out to justify the choice of the adopted solution (compensation with passive circuit elements - reactance coils) over the classic ones (adjusting the ignition angle of the inverters in the plant so that they work in inductive mode ).
Joint approximation of analytic functions by shifts of the Riemann zeta-function twisted by the Gram function
Authors:   ", KOROLEV MAXIM ,   STEKLOV MATHEMATICAL INSTITUTE OF RUSSIAN ACADEMY OF SCIENCES DEPARTMENT OF ALGEBRA AND NUMBER THEORY GUBKINA STR., 8, 11999 MOSCOW, RUSSIA", LAURINČIKAS ANTANAS ,   "VILNIUS UNIVERSITY INSTITUTE OF MATHEMATICS, FACULTY OF MATHEMATICS AND INFORMATICS NAUGARDUKO STR. 24, LT-03225 VILNIUS, LITUANIA"
Published: March 2023

In the paper, we consider the simultaneous approximation of a collection of analytic functions by a collection of shifts of the Riemann zeta-function $(\zeta(s+it_\tau^{\alpha_1}), \dots, \zeta(s+it_\tau^{\alpha_r}))$, where $t_\tau$ is the Gram function and $\alpha_1, \dots, \alpha_r$ are different positive numbers. It is obtained that the set of such shifts has a positive lower density.
Aspects Regarding Knowledge-based Engineering
Authors: Ghelase Daniela , Daschievici Luiza
Published: March 2023

Knowledge management (KM) has become an effective way of managing organization’s intellectual capital or, in other words, organization’s full experience, skills and knowledge that is relevant for more effective performance in future. The paper proposes a knowledge management to achieve a competitive control of the machining systems. Then an application of Knowledge Management in engineering has been attempted to explain. The model can be used by the manager for the choosing of competitive orders.
The Modeling of Jakarta Composite Index Data Before and During COVID-19 Pandemic and its Alignment into Government Policy in Energy Sector
Authors: Kurniasari Florentina , Endarto Eko , Dewi Helena , Dewi Cynthia Sari , Nizar Nurhuda
Published: March 2023

The COVID-19 pandemic brings significant effects to the global stock market, including Indonesia. This study investigates the behavior and fluctuation of Jakarta Composite Index (JKSE) before the COVID-19 pandemic arises (2018–2019) and 2 years during the COVID-19 pandemic (2020–2021) and its alignment with the government policy in the energy sector. This study will use the JKSE data before and during the Covid-19 pandemic. The study showed that before COVID-19 pandemic, the JKSE was in normal conditions and showed an increasing trend. However, the study found anomalies in the JKSE volatility when COVID-19 pandemic was officially announced in Indonesia during 1st quarter 2020. This study is able to find the forecasted next 30 days best models that can describe the pattern of JKSE data are AR (2)–GARCH (1,1) models for the closing price of JKSE data before the COVID-19 pandemic and AR (5)–GARCH (1,1) models for the closing price of JKSE data during the COVID-19 pandemic. With the government economic recovery program related to the energy sector, this study was able to forecast the next 30 days for the closing price of JKSE during COVID-19, which showed the improvement of JKSE into the small increasing trend. These findings are expected to increase public investor trust, especially foreign investors investing their money in the JKSE. The positive trend in JKSE will ensure the government continues its economic policy recovery plan.
The Influence of Organizational Culture and Internal Control on Corporate Performance Mediated by Corporate Governance in PT Medco E&P Malaka
Authors: Helmi  , Adam Muhammad , Amri
Published: March 2023

This study examines the influence of an organization’s culture, internal control, and corporate governance on corporate performance in a national private company. To collect data used a survey technique with a saturated sample of all the employees on PT Medco E&P Malaka (Medco) located in East Aceh Region, Indonesia, with 161 respondents. The data were analyzed using Structural Equation Modelling (SEM). The result shows that in Medco, Significantly, culture affects corporate governance, Internal control affects governance, culture affects corporate performance, Internal control affects corporate performance, governance affects corporate performance, culture affects corporate performance thru governance, and Internal control affects corporate performance thru governance. The findings also prove from the results of direct effect and indirect effect tests, the corporate governance variable in the model functions as a partial mediator. These findings explain that the corporate performance improvement model at Medco is a function of cultural adjustment, and strengthening of internal controls within the company, which can have an impact on strengthening corporate governance.
Perception of Environmental Sanitation and Communication Practice in Port Harcourt Rivers State, Nigeria
Authors: Nwaerema P , Ikoro J. N. , Fred-Nwagwu W. F. , Jiya S. N. , Oye I. , Dangana K. , Adama C.K.
Published: March 2023

This study examined perception of environmental sanitation and communication practice in Port Harcourt, Rivers State, Nigeria. The study used multi-stage cluster sampling technique and respondents’ participatory interview. The study administered 400 questionnaires in the study area. The respondents’ participatory interview and questionnaires were administered in three clusters of the Diobu area, Government Residential Area (GRA) and other residential areas.  Findings of the study showed that the respondents understood that environmental sanitation is a practice of keeping the surrounding of man clean (34% agree and 61.5% strongly agree). The stakeholders’ response showed that their level of communicating environmental sanitation was majorly through radio, television and print media. The highest communication medium for environmental sanitation in the Port Harcourt was by radio (38.25% agree and 54.5% strongly agree). The television was adequately utilized to communicate environmental sanitation (38.75% agree and 50.75% strongly agree). The stakeholders were of the perception that government participated more in communicating environmental sanitation (34.5% agree and 35.5% strongly agreed). On the relationship of environmental sanitation occurrence and communication to stakeholders, the Chi-square test showed a table value of 37.12 and calculated value of 1.6962 indicating that the calculated value was lesser than the table value. This proved that environmental sanitation was not significantly communicated to the Port Harcourt city dwellers. This study, therefore, recommended that the government and policy makers should actively utilize the local and national media to communicate environmental sanitation in Port Harcourt, Rivers State of Nigeria.
DESEMPENHO DO REL DE DIST NCIA EM LINHAS DE TRANSMISSÃO COMPENSADAS COM TCSC
Authors: Ferreira Mateus Andrade , Gonzaga da silveira Eduardo , Luiz Alex-Sander Amável
Published: March 2023

Objetivo: Este artigo apresenta o desenvolvimento e testes com enfoque na proteção de distância de um sistema elétrico em tensão reduzida composto por uma linha de transmissão trifásica com compensação série promovida por Thyristor controlled series capacitor (TCSC) controlado em malha aberta. Métodos: São detalhados os procedimentos adotados para construção do experimento, visão geral do sistema proposto, sistema de medição e aquisição de dados de tensão e de corrente, processamento dos sinais pelo relé de distância proposto, seleção dos componentes para construção do TCSC. Resultados: São apresentados diversos cenários de faltas no sistema proposto. Todos eles são simulados por meio de software e executados em testes práticos. Os resultados são analisados e comparados entre si. Conclusão: A principal contribuição deste trabalho foi o desenvolvimento da representação em escala de um sistema elétrico compensado por TCSC. Abordagens práticas não são usuais neste tipo de estudo, mas apresentam algumas vantagens interessantes em relação aos trabalhos que envolvem apenas simulações.
ANÁLISE DA CERTIFICAÇÃO DO ETANOL PELA RENOVABIO SOB ASPECTOS REGIONAIS NO BRASIL
Authors: da Silva Ubirajara Souza , Silva Marcelo Santana , Martins Luís Oscar Silva , Hocevar Luciano Sérgio , Rocha Ângela Machado , Torres Ednildo Andrade
Published: March 2023

Objetivo: A certificação ambiental é um processo que envolve um conjunto múltiplo de informações e orientações de manejo de produção que influenciam na estratégia comercial de um projeto, pode ser definido com uma certificação ambiental. A RenovaBio, estabeleceu a sua certificação de biocombustíveis, de um modo energético e ambiental, que são métodos e princípios de procedimento em que uma certificadora analisa a correção de questões referentes à produção ou à importação de biocombustíveis avaliando todo o seu processo de produção e comercialização e analisando o desempenho de sua eficiência energética e das emissões de GEE com base em uma ACV . Métodos: O trabalho respondeu, a partir dos resultados apresentados pela ANP sobre o resultado da certificação, quais seriam as diferenças e similaridades do etanol brasileiro, produzido sob o ponto de vista da eficiência energética e ambiental sob uma análise regional. Para esta análise, além da segregação por regiões foi utilizada a ferramenta diagrama de caixa para uma análise estatística dos resultados. Resultados: As diferenças regionais indicaram que, apenas para a região Nordeste existe uma diferença considerada mais discrepante ante as demais regiões. Conclusão: Os resultados obtidos são importantes para futuros estudos de melhoria para o planejamento da produção de etanol no Brasil.
CONSIDERAÇÕES ACERCA DA APLICAÇÃO DE SENSORES IOT NO PROCESSO DE MANUTENÇÃO 4.0 DO SETOR DE AVIAÇÃO
Authors: GONÇALVES L. C. , GIORDANO C. V. , PEREIRA J. M. , CASTANHA P. T.
Published: March 2023

As empresas com um largo histórico de excelência têm sido desafiadas a se adaptarem a mais nova revolução, conhecida como Indústria 4.0, quebrando paradigmas, mudando rotinas e demandando a busca por novas tecnologias, uma delas é a Internet das Coisas (Internet of Things, ou IoT). Esta investigação aborda a IoT, e como essa tecnologia auxilia os processos de manutenção de aeronaves, mais especificamente o Boeing 737-800, a fim, também, de avaliar como o contribui para a tomada de decisão, otimização nos processos e planejamento futuro. A tecnologia aplicada na manutenção utilizando pilares da Indústria 4.0, possibilita traçar estratégias capazes de garantir a confiabilidade e disponibilidade dos ativos, mostrando além disso, como é facilitada a manutenção 4.0, detentora de papel fundamental no envio de dados aos componentes eletrônicos, em que se realizam pesquisas de panes para identificação e resolução de problemas. Identificando as barreiras no processo de manutenção preventiva e corretiva em que as tarefas precisam se realizar por profissionais homologados pelo órgão fiscalizador ANAC (Agência Nacional de Aviação Civil). Considera-se ao final, que esse novo momento tecnológico favorece maior integridade dos processos contribuindo para o retorno da aeronave ao serviço com segurança e qualidade.
CONVERSOR MATRICIAL PARA INTERLIGAÇÃO DE GERADORES EÓLICOS RESIDENCIAIS
Authors: Santana Caique Nunes Maria , Ledebuhr Roberson Adriel Bergmann , Tomm Fabio Luis
Published: March 2023

Os processos industriais que, alimentados por corrente alternada, necessitam de níveis específicos de tensão e fase para acionamento e controle, o que pode ser provido por conversores estáticos de potência CA/CA. A geração de energia elétrica também é um processo industrial, portanto há a necessidade da modulação de potência para entrega à rede. A energia eólica é uma das fontes de energia com amplo crescimento. Uma das razões para isso se deve a grandes melhorias na tecnologia de conversão, levando a custos mais baixos. O uso dos geradores síncronos têm apresentado crescimento nas turbinas eólicas desde o final do século XX, esta máquina gera tensão e corrente com frequências variáveis de acordo com a variação da velocidade do vento. Devido à intermitência dos ventos, faz-se necessário o controle da potência despachada à rede, convencionalmente, mediante ao conversor back-to-back. Esses conversores possuem um barramento CC, munido de um capacitor, pesado e volumoso que é substituído regularmente e isto implica em custos de manutenção. Pelas características modulares, quando um capacitor de barramento apresenta defeito, há a necessidade de substituição do conversor estático por completo. Em contrapartida, o conversor matricial (CM), como conversor CA/CA direto, sem a necessidade de capacitor de barramento, modulado por largura de pulso (PWM – PulseWidth Modulation), possui potencial para substituir a estrutura do conversor back-to-back. A ausência de um barramento CC entre a conversão CA/CA aumenta consideravelmente o tempo de vida do sistema e diminui a manutenção. Graças a este fator, apresenta-se neste trabalho uma alternativa de melhor custo-benefício, em aerogeradores residenciais. Aplicada a modulação por largura de pulso senoidal ao conversor matricial, este buscará o menor nível de tensão sobre os interruptores, visto que seu algoritmo prevê a condição de buscar o próximo pulso da entrada trifásica, acionador do driver do MOSFET para que isto se suceda. Em virtude disto, é mostrado que o conversor matricial atua de forma eficiente na modulação da potência de saída de um gerador síncrono, provendo menores perdas por chaveamento e consequentemente uma vida útil maior em comparação ao conversor back-to-back.
IMPÁCTOS DE INCENTIVOS PÚBLICOS NO CUSTO DE GERAÇÃO DE UM SISTEMA DE CONCENTRAÇÃO SOLAR (HELIOTÉRMICO)
Authors: Carvalho Renan de Souza , Bezerra Pedro Henrique Silva , Collaço Alcir Monteiro , Oliveira Celso Eduardo Lins de
Published: March 2023

Mediante a necessidade de diversificação da matriz elétrica nacional, as buscas por novas tecnologias capazes de auxiliar a suprir a demanda nacional são imprescindíveis. Neste escopo, a chamada energia solar concentrada, ou heliotérmica, se mostra como uma possibilidade aprazível, devido a sua possibilidade de modulagem do despache através do armazenamento de calor, porém um dos principais empasses desta tecnologia se encontra no alto custo inicial de investimento. O Brasil possui um alto potencial para a inserção da tecnologia heliotérmica em seu território, porém ainda não existem usinas em funcionamento. Neste âmbito, o presente trabalho teve como objetivo aplicar políticas públicas de incentivo a geração verde, voltadas atualmente para sistemas fotovoltaicos na ferramenta de simulação SAM, utilizando-se como base meteorológica os valores de radiação solar da cidade de Pirassununga – SP, através de um cenário base de incentivos federais, estaduais e de financiamento proposto. Outros cenários alternativos, com incentivos ainda mais atraentes também foram conjecturados. O sistema foi configurado com tecnologia de calhas parabólicas, com capacidade instalada de geração 30MWel e 3 horas de armazenamento térmico. Os resultados demonstraram viabilidade econômica em todos os cenários, com uma maior influência de incentivos federais, seguida de incentivos estaduais e financiamento. De mesma maneira, os incentivos federais e estaduais geraram maiores valores de PPA e também LCoE, o que aumentou o VPL nos cenários analisados. No entanto, a ocorrência de leilões específicos se mostrou uma estratégia primordial na obtenção dos melhores custos da energia gerada e na estratégia de financiamento adotado.
Merging scalar magnetometer and fluxgate gradiometer data - an alternative method
Authors: Hahn Sandra , Fassbinder Jörg W. E.
Published: March 2023

Combining the records of different types of magnetometers to one magnetogram can be onerous. We introduce an alternative way to merge magnetograms of diverse magnetometers. The application of a high-pass filter on scalar magnetometer data resembles gradiometer data. This can be a fast and easy way to merge scalar magnetometer and fluxgate gradiometer data.
Structure aware noise reduction of multi-channel ground penetrating radar data using Principal Component Analysis
Authors: Linford Neil
Published: March 2023

Multi-channel ground penetrating radar (GPR) may contain interference and decoupling noise. Principal Components Analysis (PCA) is applied to adjacent GPR data channels to reduce noise. Structure aware image fusion only replaces areas of isolated noise.
ASYMPTOTIC ANALYSIS OF STURM-LIOUVILLE PROBLEM WITH DIRICHLET AND NONLOCAL TWO-POINT BOUNDARY CONDITIONS
Authors: Štikonas Artūras , Şen Erdoğan
Published: March 2023

In this study, we obtain asymptotic expansions for eigenvalues and eigenfunctions of the one–dimensional Sturm–Liouville equation with one classical Dirichlet type boundary condition and two-point nonlocal boundary condition. We analyze the characteristic equation of the boundary value problem for eigenvalues and derive asymptotic expansions of arbitrary order. We apply the obtained results to the problem with two-point nonlocal boundary condition.
Efficient Energy Conversion through Vortex Arrays in the Turbulent Magnetosheath
Authors: Hou Chuanpeng , He Jiansen , Duan Die , Zhu Xingyu , Li Wenya , Verscharen Daniel , Liu Terry , Wang Tieyan
Published: March 2023

Turbulence is often enhanced when transmitted through a collisionless plasma shock. We investigate how the enhanced turbulent energy in the Earth's magnetosheath effectively dissipates via vortex arrays. This research topic is of great importance as it relates to particle energization at astrophysical shocks across the universe. Wave modes and intermittent coherent structures are the key candidate mechanisms for energy conversion in turbulent plasmas. Here, by comparing in-situ measurements in the Earth's magnetosheath with a theoretical model, we find the existence of vortex arrays at the transition between the downstream regions of the Earth's bow shock. Vortex arrays consist of quasi-orthogonal kinetic waves and exhibit both high volumetric filling factors and strong local energy conversion, thereby showing a greater dissipative energization than traditional waves and coherent structures. Therefore, we propose that vortex arrays are a promising mechanism for efficient energy conversion in the sheath regions downstream of astrophysical shocks.
Prospects of Detecting Nonthermal Protons in Solar Flares via Lyman Line Spectroscopy: Revisiting the Orrall–Zirker Effect
Authors: Kerr Graham S. , Allred Joel C. , Kowalski Adam F. , Milligan Ryan O. , Hudson Hugh S. , Prado Natalia Zambrana , Kucera Therese A. , Brosius Jeffrey W.
Published: March 2023

Solar flares are efficient particle accelerators, with a substantial fraction of the energy released manifesting as nonthermal particles. While the role that nonthermal electrons play in transporting flare energy is well studied, the properties and importance of nonthermal protons are rather less well understood. This is in large part due to the paucity of diagnostics, particularly at the lower-energy (deka-keV) range of nonthermal proton distributions in flares. One means to identify the presence of deka-keV protons is by an effect originally described by Orrall & Zirker. In the Orrall–Zirker effect, nonthermal protons interact with ambient neutral hydrogen, and via charge exchange produce a population of energetic neutral atoms (ENAs) in the chromosphere. These ENAs subsequently produce an extremely redshifted photon in the red wings of hydrogen spectral lines. We revisit predictions of the strength of this effect using modern interaction cross sections, and numerical models capable of self-consistently simulating the flaring nonequilibrium ionization stratification, and the nonthermal proton distribution (and, crucially, their feedback on each other). We synthesize both the thermal and nonthermal emission from Ly α and Ly β, the most promising lines that may exhibit a detectable signal. These new predictions are weaker and more transient than prior estimates, but the effects should be detectable in fortuitous circumstances. We degrade the Ly β emission to the resolution of the Spectral Imaging of the Coronal Environment (SPICE) instrument on board Solar Orbiter, demonstrating that though likely difficult, it should be possible to detect the presence of nonthermal protons in flares observed by SPICE.
New and little-known bees of the genus Colletes Latreille, 1802 (Hymenoptera, Colletidae) from Siberia
Authors: Proshchalykin Maxim Yu. , Kuhlmann Michael
Published: March 2023

An annotated list of seven species of rarely collected and little-known bees of the genus Colletes from Siberia is given, including five species whose ranges within the region are enlarged. Colletes ravuloides Kuhlmann & Proshchalykin, sp. nov. is described from Tyva Republic (Russia). An updated checklist of the 27 species of Colletes so far known from Siberia is provided.
Nest characteristics and associates of Dolichovespula (Hymenoptera, Vespidae) in Central Finland
Authors: Komonen Atte
Published: March 2023

In social vespine wasps, the nest characteristics and associates vary intra- and interspecifically. I studied the nest characteristics and nest associates of three Dolichovespula wasp species in boreal Finland. The average number of combs and cells per nest was similar among D. media, D. saxonica and D. norwegica, and similar to Dolichovespula in the temperate zone. Most D. media and D. saxonica colonies produced both gynes and males, whereas D. norwegica produced mainly either one. The average colony lifespan of D. saxonica was a bit over two months, i.e. shorter than documented for Dolichovespula in the temperate zone. The proportion of nests parasitised by the ichneumonid wasp Sphecophaga vesparum was 36% in D. saxonica and 50% in D. media; S. vesparum has not been recorded from D. media before. The proportion of parasitized cells was 0.6–11% for D. saxonica and 0.2–22% for D. media. The proportion yellow, overwintering cocoons of S. vesparum was highly variable among the nests. The proportion of nests parasitised by the moth Aphomia sociella was 36% in D. saxonica and 13% in D. media. Sphecophaga and Aphomia were not recorded from D. norwegica colonies, which supports studies in the temperate zone. The study adds up to the previous research on the nest structure and nest associates of vespines, and together they indicate that there is geographical variation within Europe and globally in the host use of Sphecophaga.
Habitat use, non-breeding groupings and chromatic pattern in Johngarthia lagostoma (H. Milne Edwards, 1837) (Decapoda, Gecarcinidae) in Trindade Island, South Atlantic Ocean
Authors: Entringer Jr Hilton , Srbek-Araujo Ana Carolina
Published: March 2023

The land crab Johngarthia lagostoma is endemic to Trindade Island, Atol das Rocas, Fernando de Noronha and Ascension Islands. The natural history of the species in non-breeding periods is little known. Therefore, here we reported the formation of non-breeding groups and evaluated the chromatic populational pattern of J. lagostoma in Trindade Island. Records were obtained between April and June 2015. The groups were characterized according to their location, terrain elevation, environmental characteristics and specimens’ behavior. The chromatic pattern was defined by the classification of individuals between yellow and purple, and the proportion of each color was compared between populational units (previously defined based on genetic differences). Non-breeding groups were recorded in four locations in Trindade Island, at altitudes < 40 m, and all of them were in locations with food resources and sediment suitable for the construction of shelters. Isolated individuals or the absence of the species were observed in the most inhospitable places, indicating that the maintenance of the species depends on portions of suitable habitat amid the currently arid matrix. Yellow individuals (96.4%) were predominant on Trindade Island and the chromatic pattern differed from the other populations. Color patterns seem to follow genetic differences between populations, and the founder effect may account for current patterns. From the data obtained, we emphasize that the maintenance of the species may depend on food, sediment suitable for shelters construction, humidity and shade. Due to the significant population decline in other regions, the need to define guidelines for the conservation of the species on Trindade Island is highlighted. In this context, the regeneration of insular vegetation and prohibiting the known anthropic consumption of individuals may represent important strategies for the maintenance of the species.
Development and characterization of clove oil microemulsion
Authors: Kiromah Naelaz Zukhruf Wakhidatul , Sugihartini Nining , Nurani Laela Hayu
Published: March 2023

Clove oil is one type of essential oil from clove flower buds (Syzygium aromaticum) which contains eugenol compounds. Clove oil is volatile in nature and highly affected by heat, thus incorporating it in a microemulsion system can increase its shelf life of the oils. This study aimed to formulate and characterize microemulsion preparations with clove flower essential oil. The microemulsion existence region was determined by constructing a pseudo-ternary phase diagrams and prepared with four components, i.e. isopropyl myristate, tween-80 as a surfactant, polyethylene glycol 400 (PEG 400) as a co-surfactant, and water as the aqueous phase. The optimized clove oil microemulsion formulation was subjected to an evaluation of various parameters, such as organoleptic properties, %transmittance, pH, viscosity, stability, particle size, zeta potential, and polydispersity index (IP). Based on the results of the study, the highest compound component in clove oil was eugenol with a % area of ​​63.79%. The results revealed that the construction of a phase diagram and the use of the phase titration method constituted a suitable technique for the preparation of microemulsions as most of the formulations were transparent. It was found that the tween-80:PEG 400 ratio of 2:1 with an oil:S-mix ratio of 1:9 generated an optimum results. The clove oil microemulsion had a globule size of 17.69±0.025nm, a polydispersity index value of 0.057±0.0043, zeta potential of-5.36±0.23mV, and a pH value of 7.3±0.1, a viscosity value of 466.7±9.06., and %transmittance of 99.9±0.1. According to these findings, the microemulsion formulation might serve as a suitable drug delivery system.
Aspidistra daibuensis var. longkiauensis, a new variety of Aspidistra (Asparagaceae) from Taiwan, identified through morphological and genetic analyses
Authors: Lu Chang-Tse , Yang Ming-Jen , Luo Min-Xin , Wang Jenn-Che
Published: March 2023

Aspidistra Ker Gawl. is one of the the most diverse and fastest-growing genera of angiosperm. Most Aspidistra species have been discovered in a limited area or a single site through morphological comparison. Because of the lack of population studies, morphological variation within species and the boundaries of some species remain unclear. In recent years, combining genetic and morphological markers has become a powerful approach for species delimitation. In this study, we performed population sampling and integrated morphometrics and microsatellite genetic diversity analyses to determine the species diversity of Aspidistra in Taiwan. We identified three species, namely Aspidistra attenuata Hayata; A. daibuensis Hayata var. daibuensis; A. mushaensis Hayata var. mushaensis; and reduced A. longiconnectiva C.T.Lu, K.C.Chuang & J.C.Wang to the variety level, and described a new variety, A. daibuensis Hayata var. longkiauensis. The description, diagnosis, distribution, and photographs of this new variety as well as a key to the known Taiwanese Aspidistra are provided.
Transdisciplinarité « forte » en Anthropocène : retour d’expérience d’un dialogue croisé entre sciences sociales et modélisation
Authors: Delannoy Louis , Palle Angélique , Rebière Noémie , Andrieu Baptiste
Published: March 2023

En établissant une causalité entre les activités des sociétés humaines et la transformation des phénomènes biophysiques globaux, la notion d’Anthropocène a imposé des approches systémiques et transdisciplinaires, seules à même de saisir l’ampleur des enjeux soulevés. Le dialogue proposé par cet article s’inscrit dans la lignée de ces travaux récents. Il rassemble deux collectifs de jeunes chercheurs, l’un en sciences sociales, l’autre en sciences de la modélisation qui, à travers une interaction croisée, explorent les défis pratiques de l’analyse des risques systémiques globaux. Les échanges tenus soulignent les apports mutuels des sciences dures et sociales et illustrent la pertinence de la modélisation pour tester ou valider des trajectoires de transition écologique, tout en exposant ses propres limites épistémologiques et méthodologiques. Enfin, ce dialogue étend la notion de transdisciplinarité « forte », dans laquelle les interactions entre disciplines auraient lieu à chaque étape du processus de création scientifique, en opposition à une transdisciplinarité « faible », où les échanges seraient cloisonnés à certains temps précis.
Las casas cuartel de la Guardia Civil del franquismo: limitaciones y potencialidades de un patrimonio marginal
Authors: Pinzón-Ayala Daniel
Published: March 2023

La promoción de casas cuartel efectuada por el franquismo entre 1940 y 1975 permitió consolidar la estatalización del parque de acuartelamientos de la Guardia Civil, hasta entonces dependiente del alquiler de inmuebles. Si bien esto supuso un salto cualitativo para los espacios laborales y residenciales de estos complejos militares, las limitaciones económicas, técnicas, materiales y humanas condicionaron su calidad. El análisis de 298 proyectos desvela que las casas cuartel evolucionaron, en tres etapas diferentes, por los avances en las soluciones constructivas, las normativas y la idea cambiante de acuartelamiento, pero con una constante precariedad. Esta realidad, junto con el desconocimiento y los prejuicios asociados, está provocando que actualmente muchos acuartelamientos sean demolidos, con la significativa pérdida patrimonial que esto supone. Con este artículo se pretende poner en valor estas arquitecturas demostrando con ejemplos que pueden ser útiles bajos nuevos usos, especialmente en ámbitos rurales, a pesar de sus limitaciones constructivas.
Fundamentals of Integrated Management
Authors: Krylov Sergey
Published: March 2023

The article is dedicated to the problem of improving information and analytical support of innovation management. For that, the author proposes a conceptual and methodological framework of integrated management analysis of innovation which constitutes an absolutely new kind of management analysis aimed at providing the company's management and owners with full, accurate, and quality information about the effectiveness of its operation on the principles of innovation and about untapped resources and opportunities for their mobilization. The article shows that integrated management analysis of innovation implies an overall study of the entire set of processes of formation of relevant resources, costs, and results obtained in the course of innovation as well as the most important processes taking place on the consumer market and among the company's competitors. Its system of indicators includes the indicators of innovation, investment, and competitive and market analysis, which may be used for the study of innovation performance in its operational, tactical, and strategic aspects.
Duck Pack Optimization With Deep Transfer Learning-Enabled Oral Squamous Cell Carcinoma Classification on Histopathological Images
Authors: Shetty Savita K. , Patil Annapurna P.
Published: March 2023

Earlier detection and classification of squamous cell carcinoma (OSCC) is a widespread issue for efficient treatment, enhancing survival rate, and reducing the death rate. Thus, it becomes necessary to design effective diagnosis models for assisting pathologists in the OSCC examination process. In recent times, deep learning (DL) models have exhibited considerable improvement in the design of effective computer-aided diagnosis models for OSCC using histopathological images. In this view, this paper develops a novel duck pack optimization with deep transfer learning enabled oral squamous cell carcinoma classification (DPODTL-OSC3) model using histopathological images. The goal of the DPODTL-OSC3 model is to improve the classifier outcomes of OSCC using histopathological images into normal and cancerous class labels. Finally, the variational autoencoder (VAE) model is utilized for the detection and classification of OSCC. The performance validation and comparative result analysis for the DPODTL-OSC3 model are tested using a histopathological imaging database.
Do ChatGPT and Other AI Chatbots Pose a Cybersecurity Risk?
Authors: Sebastian Glorin
Published: March 2023

The rise of artificial intelligence (AI) has opened up new frontiers in various fields, including natural language processing. One of the most significant advancements in this area is the development of conversational agents (i.e., chatbots), which are computer programs designed to interact with humans through messaging interfaces. The emergence of large language models, such as ChatGPT, has enabled the creation of highly sophisticated chatbots that can mimic human conversations with impressive accuracy. However, the use of these chatbots also poses significant cyber risks that must be addressed. This research paper seeks to investigate the cyber risks associated with the use of ChatGPT and other similar AI-based chatbots, including potential vulnerabilities that could be exploited by malicious actors. As part of this research, a survey was conducted to explore the cybersecurity risks associated with AI-based chatbots like ChatGPT. Further, the paper also suggests mitigation methods that can be used to mitigate these cyber risks and vulnerabilities.
A querela moderna acerca do “escudo de Aquiles”: sobre um capítulo da questão homérica no Século de Luís XIV
Authors: Silva Neto Sertório de Amorim e
Published: March 2023

Situada no décimo oitavo livro da Ilíada, a descrição do escudo de Aquiles alcançou a imortalidade pelos versos dos poetas épicos que se seguiram a Homero e se notabilizou também como um argumento privilegiado nas disputas literárias da França do dezessete. Neste artigo, logo após algumas considerações gerais sobre o lugar do “escudo” no processo de formalização da écfrase como dispositivo retórico, expomos de que modo ele foi apropriado pelos literatos franceses do Século de Luís XIV e transformado em cavalo-de-batalha da moderna Questão Homérica. Para essa exposição, analisamos as considerações feitas por Charles Perrault e Houdar de La Motte ao escudo de Aquiles, que sobre certos aspectos seguem e se opõem à sua aparição nas páginas das Vite de Giorgio Vasari.
O mito das Sereias e as derivas do imaginário
Authors: Dravet Florence , Sousa Brandão Thiago de
Published: March 2023

Este artigo se propõe a descrever e interpretar obras das artes plásticas em torno do mito das sereias, partindo da narrativa homérica e observando suas estéticas. Trata-se de perceber o efeito da reverberação da sonosfera original (o canto das sereias em Homero) no imaginário moderno dos séculos XIX, XX e XXI. A pesquisa parte da concepção junguiana de mito em seus aspectos constitutivos da psique, da noção de “efeito sereia” proposta por Sloterdijk (2016) e da crítica de Cavarero (2011) sobre o silenciamento das sereias. Propõe uma compreensão sonosférica do mito das sereias da qual as várias interpretações visuais da modernidade derivaram. Conclui-se sobre a perda de sentido mítico na sociedade moderna e aponta-se para a música como possível reencontro das origens perdidas.
O mito e a paisagem do encantado Ataíde na conservação da biodiversidade em Bragança-PA
Authors: Amaral Ricardo Costa , Ely Martins Cordeiro Yvens
Published: March 2023

Esse artigo analisa as relações de historicidade e expressividade cultural do mito do encantado Ataíde e do seu papel na conservação da biodiversidade em comunidades tradicionais de pescadores do município de Bragança, estado do Pará, e, também, os conhecimentos ecológicos tradicionais e seus nexos com a paisagem. Nessa intenção, usa-se como fundamento teórico e metodológico para o constructo epistemológico a fenomenologia sociológica de Alfred Schutz, que busca o significado subjetivo da conduta social; em adição, busca-se compreender a realidade socioambiental da experiência vivida dos sujeitos dessas comunidades na multidimensionalidade da realidade.
Mitologias e história: entre antigos e modernos
Authors: Cavallini Marco Cícero
Published: March 2023

Os artigos aqui reunidos para esse dossiê desenvolvem questões e reflexões pertinentes às relações entre mitologias e histórias, entre antigos e modernos. Contemplam uma diversidade de temas e perspectivas e abrem possibilidades de análises, debates e diálogos transdisciplinares.
Efeito de uma intervenção remota de atividade física no risco cardiovascular e na aptidão física
Authors: Terashima Lincoln Fernando Akira , Campos Ana Carolina Mendes de Lara , Souza Marcelo Alves de , Jacob Renan Vegas , Paracatu Tayna , Bartholomeu Teresa , Modesto Bruno Temoteo , Forjaz Cláudia Lúcia de Moraes
Published: March 2023

Devido à pandemia da COVID-19, os projetos de orientação de atividade física (AF) tiveram que adaptar suas atuações para o formato remoto. O objetivo deste estudo foi avaliar os efeitos de uma intervenção remota de AF no risco cardiovascular e na aptidão física em participantes desses projetos. Para isso, 29 participantes do Projeto Exercício e Coração (66±5 anos) foram orientados a realizar, 2 caminhadas, 1 videoaula de exercícios aeróbicos e 2 videoaulas de exercícios de força muscular por semana, sendo cada atividade realizada por 30 min e em intensidade moderada. No início e após 8 semanas, foram medidos marcadores de risco cardiovascular e de aptidão física, que foram comparados por testes t-student ou Wilcoxon, considerando-se p≤0,05. Comparando-se as avaliações pré e pós-intervenção, houve redução da circunferência da cintura (95,9±11,3 vs. 94,7±11,3 cm, p=0,013) e aumento da capacidade cardiorrespiratória (117±21 vs. 123±23 passos, p=0,019), da força dos membros superiores (23±6 vs. 25±6 repetições, p=0,003), da resistência abdominal (20±9 vs. 22±10 repetições, p=0,002) e da aptidão física geral (-0,04±3,55 vs. 1,30±4,10, p=0,000). Em conclusão, a intervenção remota aumentou a aptidão física geral, aumentando a capacidade cardiorrespiratória, a força e a resistência muscular, além de reduzir a obesidade central.
Voleibol escolar: caracterização das escolas/municípios participantes dos jogos escolares de Santa Catarina
Authors: Marcelino Anderson , Collet Carine , Cardoso Alencar Allana Alexandre , Bobato Tozetto Alexandre Vinicius , Backes Ana Flávia , Nascimento Juarez Vieira do
Published: March 2023

O ambiente escolar tem contribuído no processo de desenvolvimento esportivo, especialmente pela oferta diversificada de atividades nas aulas de Educação Física e em projetos extracurriculares voltados às modalidades esportivas. O trabalho realizado com as equipes escolares de voleibol no estado de Santa Catarina tem sido altamente reconhecido ao longo dos anos, porém há poucas evidências sobre as escolas que têm contribuído na formação de jogadores de voleibol no cenário catarinense. Assim, o objetivo do estudo foi caracterizar as escolas participantes dos Jogos Escolares de Santa Catarina (JESC) de voleibol. Realizou-se a análise documental dos boletins dos JESC disponibilizados pela Fundação Catarinense de Esporte (FESPORTE). As evidências revelaram que os estabelecimentos de ensino com maiores participações e conquistas, em ambas as categorias investigadas, são escolas de educação básica da rede estadual, seguidas pelas instituições de ensino da rede privada e, em menor número, por escolas municipais. Enquanto na categoria feminina as escolas estão localizadas em sua grande maioria nas regiões Leste-Norte e Sul, na categoria masculina concentram-se na região Centro-oeste, especialmente em cidades de pequeno e médio porte, com elevado Índice de Desenvolvimento Humano (IDH).
Regulation and Immunotherapeutic Targeting of the Epigenome in Exhausted CD8 T Cell Responses
Authors: Ford B Rhodes , Poholek Amanda C
Published: March 2023

Exhaustion is a state of CD8 T cell differentiation that occurs in settings of chronic Ag such as tumors, chronic viral infection, and autoimmunity. Cellular differentiation is driven by a series of environmental signals that promote epigenetic landscapes that set transcriptomes needed for function. For CD8 T cells, the epigenome that underlies exhaustion is distinct from effector and memory cell differentiation, suggesting that signals early on set in motion a process where the epigenome is modified to promote a trajectory toward a dysfunctional state. Although we know many signals that promote exhaustion, putting this in the context of the epigenetic changes that occur during differentiation has been less clear. In this review, we aim to summarize the epigenetic changes associated with exhaustion in the context of signals that promote it, highlighting immunotherapeutic studies that support these observations or areas for future therapeutic opportunities.
Validation and Refinement of Two Interpretable Models for Coronavirus Disease 2019 Prognosis Prediction
Authors: Chang Kai , Jia Ting , Zhou Ya-Na , Shu Zi-Xin , Liu Ji-Fen , Sun Jing , Zheng Qi-Guang , Tian Hao-Yu , Xia Jia-Nan , Yang Kuo , Wang Ning , Sun Hai-Long , Wang Xin-Yan , Yan Deng-Ying , Clark Taane G , Liu Bao-Yan , Li Xiao-Dong , Peng Yong-Hong , Zhou Xue-Zhong
Published: March 2023

Objective:

To validate two proposed coronavirus disease 2019 (COVID-19) prognosis models, analyze the characteristics of different models, consider the performance of models in predicting different outcomes, and provide new insights into the development and use of artificial intelligence (AI) predictive models in clinical decision-making for COVID-19 and other diseases.

Materials and Methods:

We compared two proposed prediction models for COVID-19 prognosis that use a decision tree and logistic regression modeling. We evaluated the effectiveness of different model-building strategies using laboratory tests and/or clinical record data, their sensitivity and robustness to the timings of records used and the presence of missing data, and their predictive performance and capabilities in single-site and multicenter settings.

Results:

The predictive accuracies of the two models after retraining were improved to 93.2% and 93.9%, compared with that of the models directly used, with accuracies of 84.3% and 87.9%, indicating that the prediction models could not be used directly and require retraining based on actual data. In addition, based on the prediction model, new features obtained by model comparison and literature evidence were transferred to integrate the new models with better performance.

Conclusions:

Comparing the characteristics and differences of datasets used in model training, effective model verification, and a fusion of models is necessary in improving the performance of AI models.
Effectiveness of repetitive transcranial magnetic stimulation on post-stroke unilateral spatial neglect
Authors: Li Xiao-Lin , Liu Xiao-Dan , Chen Bo , Zhou Zhi-Xing , Shan Chunlei
Published: March 2023

Post-stroke cognitive impairment refers to the cognitive impairment caused by stroke. Unilateral spatial neglect is the main symptom and results in remarkably lower independence in activities of daily living and participation. Recent studies suggested that repetitive transcranial magnetic stimulation (rTMS) may have a positive effect on post-stroke cognitive impairment, but no relevant systematic review has been conducted on post-stroke cognitive impairment, especially unilateral spatial neglect. Therefore, relevant studies on rTMS in the treatment of post-stroke were collected and analyzed by systematic review and meta-analysis to determine whether rTMS can improve the cognitive function of patients, especially post-stroke unilateral spatial neglect, to provide reliable evidence for rTMS intervention. PubMed, Cochrane Central Register of Controlled Trials, Embase, PsycINFO databases, Web of Science and CINAHL were searched up to February 3, 2021. Three authors screened the reviews and independently assessed their methodological quality using the Jadad scale. The number of studies finally pooled was 28, and the sample size was 819. In the overall cognition function, the efficacy of the intervention group was superior to that of the control group. This meta-analysis result indicated that rTMS influences unilateral spatial neglect. rTMS was effective in improving patients’ activities of daily living. Subgroup analysis showed the preferred items in selecting frequency pulses and session. Furthermore, rTMS could not improve unilateral spatial neglect with an onset time of less than 1 month and over 1 month. This meta-analysis shows that rTMS intervention may be a promising way to treat post-stroke cognitive impairment.
A novel loss-of-function variant in PNLDC1 inducing oligo-astheno-teratozoospermia and male infertility
Authors: Zhao Si-Yi , Meng Lan-Lan , Du Zhao-Li , Tan Yue-Qiu , He Wen-Bin , Wang Xiong
Published: March 2023

Male infertility is a major reproductive disorder, which is clinically characterized by highly heterogeneous phenotypes of abnormal sperm count or quality. To date, five male patients with biallelic loss-of-function (LOF) variants of PARN-like ribonuclease domain-containing exonuclease 1 (PNLDC1) have been reported to experience infertility with nonobstructive azoospermia. The aim of this study was to identify the genetic cause of male infertility with oligo-astheno-teratozoospermia (OAT) in a patient from a Chinese Han family. Whole-exome and Sanger sequencing analyses identified a homozygous LOF variant (NM_173516.2, c.142C>T, p.Gln48Ter) in PNLDC1. Hematoxylin and eosin staining revealed that the spermatozoa of the patient with OAT had an irregular head phenotype, including microcephaly, head tapering, and globozoospermia. Consistently, peanut agglutinin staining of the spermatozoa revealed a complete or partial loss of the acrosome. Furthermore, the disomy rate of chromosomes in the patient’s spermatozoa was significantly increased compared with that of a fertile control sample. We reported an LOF variant of the PNLDC1 gene responsible for OAT.