bluuebunny/crossref_metadata_2025 huggingface dataset:
Application of convolution neural networks for critical frequency fₒF2 prediction
Authors: Salimov Boris , Berngardt Oleg , Hmelnov Aleksey , Ratovsky Konstantin , Kusonsky Oleg
Published: March 2023

Ionosphere has an important impact on the quality of radio communication, radar, and global positioning. One of the essential characteristics describing the state of the ionosphere is its critical frequency fₒF2. Its prediction provides effective modes of operation of technical radio equipment as well as enables calculation of the corrections needed to improve the accuracy of its functioning. Different physical and empirical models are generally used for fₒF2 prediction. This paper proposes an empirical prediction technique based on machine learning methods and observational history. It relies on a regression approach to the prediction based on the known daily quasi-periodicity of ionospheric parameters related to solar illumination. Algorithmically, this approach is implemented in the form of convolutional neural networks with two-dimensional convolution. The input data for the analysis is presented as two-dimensional solar time — date matrices. The model was trained on data from the mid-latitude ionosonde in Irkutsk (RF) and tested using data from several mid-latitude ionosondes: Arti (RF), Warsaw (Poland), Mohe (China). It is shown that the main contribution to the prediction value of fₒF2 is made by the data on the nearest few days before the prediction; the contribution of the remaining days strongly decreases. This model has the following forecast quality metrics (Pearson correlation coefficient 0.928, root mean square error 0.598 MHz, mean absolute error in percent 10.45 %, coefficient of determination 0.861) and can be applied to fₒF2 forecast in middle latitudes.
Current status of the temperature and humidity regime of the troposphere in the Siberian sector in different circulation periods
Authors: Belousova Elena , Latysheva Inna , Loschenko Kristina , Olemskoy Sergey
Published: March 2023

The paper studies the long-term dynamics of air temperature and relative humidity anomaly indices in the surface layer and at different levels of the troposphere in Siberia and neighboring regions (European and Far Eastern sectors). As the main cause of the observed variations in climatic parameters we considered circulation factors, which were taken into account using the typification of macrocirculation processes proposed by B.L. Dzerdzeevsky. Seasonal differences were revealed in the distribution of anomaly indices and the area occupied by anomalies of different signs of annual and monthly mean temperature and relative air humidity, which are most pronounced during circulation periods of increased duration of meridional northern processes in the Siberian sector and in the Northern Hemisphere as a whole. The highest rates of change in the temperature regime in the Siberian sector over recent decades have been observed at the level of the isobaric surface AT–700 hPa (3 km), which affects the advective-dynamic factors of surface cyclo- and frontogenesis, as well as the processes of cloud formation and precipitation. In general, an increase in the heat content of the lower and middle troposphere and a decrease in the relative moisture content near the tropopause can be accompanied by an increase in the amount of the potential energy and convective instability energy reserves and can lead to an increase in climate risks in the Siberian sector.
Digital self-help for mental health
Authors: Haddad Mark , Gournay Kevin , Clough Isobel
Published: March 2023

The prevalence of mental health problems is increasing in the UK, with GPs reporting a rise in patients seeking help and support. This article looks at the evidence base for the use of digital platforms as a therapeutic tool
Events That Were Not Declared a PHEIC
Authors: Eccleston-Turner Mark , Wenham Clare
Published: March 2023

This chapter analyses the empirical examples of those events for which EC meetings were called but a PHEIC was not declared, or those for which EC meetings were never convened, but the outbreaks warranted further consideration. This starts with MERS-CoV, Yellow Fever, Cholera in Zimbabwe and Haiti, chemical weapons in Syria and the Fukushima disaster. In each of these we consider the further inconsistencies apparent in the decision making by the EC or WHO.
Lasing features of the ultra-short Fabry–Perot cavity on the basis of a photosensitive Er/Yb-doped multimaterial fiber with a silicophosphate core
Authors: Rybaltovsky A. A. , Bazakutsa A. P. , Denker B. I. , Egorova O. N. , Sverchkov S. E. , Velmiskin V. V.
Published: March 2023

The lasing properties of a short-cavity laser based on the Er/Yb composite fiber with a silicophosphate core in a silica cladding were investigated in detail. A Fabry–Perot cavity was manufactured on a 25 mm long fiber segment using the ultraviolet (UV) (λ=193nm) excimer laser radiation and phase-mask technique of Bragg grating inscription. The laser with an effective cavity length of 11 mm generated single-frequency radiation centered at 1554.45 nm. This laser demonstrated strictly continuous-wave operation under 974 nm pumping but self-Q-switched operation under 1485 nm pumping. Under 974 nm pumping, the slope efficiency was as high as 4%, and the output power reached 17 mW—a level comparable with the characteristics of commercial single-frequency laser diodes.
Receiver sensitivity of type-I return-to-zero signals having finite extinction ratios
Authors: Lee Jihoon , Kim Hoon
Published: March 2023

In this two-part paper, we develop expressions describing the receiver sensitivity of return-to-zero (RZ) signals having finite extinction ratios (ERs) and arbitrary duty cycles. Between the two known ways of modeling RZ signals, this work focuses on the RZ signal composed of strong and weak pulses, which represent marks and spaces, respectively (hereinafter referred to as Type I). Using our derived expressions, we show that the receiver sensitivity of a Type-I RZ signal is independent of the duty cycle if the system performance is limited by signal-dependent noise. Otherwise, there exists an optimum duty cycle for receiver sensitivity. We also quantitatively discuss the varying impact of finite ER on the receiver sensitivity for different duty cycles. We present the experimental results supporting our theoretical analysis.
3D Quantum Ghost Imaging
Authors: Pitsch Carsten , Walter Dominik , Gasparini Leonardo , Bürsing Helge , Eichhorn Marc
Published: March 2023

We present current results of a novel type of setup for quantum ghost imaging based on asynchronous single-photon timing using SPAD detectors, first presented in [1]. The scheme enables photon pairing without fixed delays and thus overcomes some limitations of the widely used heralded setups for quantum ghost imaging [2]. It especially allows 3-dimensional imaging by direct Time of Flight methods, the first demonstration of which will be shown here. To our knowledge it is also the first demonstration of 3-dimensional Quantum Ghost Imaging at all.
Comment on “Reducing the refractive index by replacing a [AlPO4]° unit with [BPO4]° in fused silica”
Authors: Ballato John , Dragic Peter , Meehan Bailey , Hawkins Thomas
Published: March 2023

Recent computational models led to the conclusion that replacing AlPO₄ with BPO₄ when doped into SiO₂, results in a lower refractive index of the subsequent glass [Opt. Mater. Express 13, 935 (2023)]. This finding is conceptually important since there is always value in having a greater diversity of dopant systems by which to tailor the refractive index profile of silica fibers, not to mention their spectroscopic and other properties. This is especially the case for high energy laser fibers, which are quite highly modified from a compositional perspective relative to telecom fibers. However, as this Comment shows, experimental results on the BPO₄-SiO₂ join, dating back nearly 75 years, clearly refute the theoretical predictions. Also refuted are the computed values and trends along the AlPO₄-SiO₂ join, a very important material system for laser fibers.
Impact of Sars-Cov-2 on access to healthcare by person with disabilities
Authors: Botha Nkosi Nkosi , Atsu Fortune Selase , Ansah Edward Wilson , Segbedzi Cynthia Esinam , Annim Sarah
Published: March 2023

The Sars-Cov-2 pandemic has ravaged societies at their very core and deepened pre-existing inequalities. Meanwhile, persons with disabilities (PwDs), the most oppressed group in Ghana that live in poor and deplorable conditions are most like to be negatively impacted by the Sars-Cov-2 crisis. Therefore, the aim of this study is to explore how the Sars-Cov-2 pandemic is influencing access to healthcare by PwDs in the Sekondi-Takoradi Metropolis (STM). We collected data from 17 participants, nine from the Ghana Blind Union (GBU), five from Ghana Society for the Physically Challenged (GSPC), and three from the Ghana National Association of the Deaf (GNAD). An interview guide containing 25 items was used to gather data from the participants and we employed Phenomenological Analysis (PA) approach in making sense of the data. PWDs encounter many different barriers like; i) stigma and discrimination, ii) cost and availability of transport, iii) poor attitude of healthcare staff, iv) poor communication, v) hospital environment and equipment, vi) handwashing and sanitizing facilities, vii) unsuitable washrooms, viii) cost of healthcare, ix) registration and renewal of NHIS cards, and x) loss of income as they attempt to seek healthcare during this Covid-19 era in the STM. Covid-19 pandemic has widened the disproportionate and inequality gaps against PWDs in the STM when they attempt to seek healthcare. in the face of this, STM may lead Ghana to lag in achieving the Sustainable Development Goal (SDG) 3.8, which entreats nations to provide quality healthcare for all persons including PWDs. PWDs need education and empowerment to enable them demand for their rights when accessing healthcare. The findings highlight existing gaps in the implementation of the disability law by healthcare facilities in STM and, re-focus the attention of hospital managers in STM to the healthcare needs of PWDs in STM.
MALDI-TOF: A new tool for the identification of Schistosoma cercariae and detection of hybrids
Authors: Huguenin Antoine , Kincaid-Smith Julien , Depaquit Jérôme , Boissier Jérôme , Ferté Hubert
Published: March 2023

Schistosomiasis is a neglected water-born parasitic disease caused by Schistosoma affecting more than 200 million people. Introgressive hybridization is common among these parasites and raises issues concerning their zoonotic transmission. Morphological identification of Schistosoma cercariae is difficult and does not permit hybrids detection. Our objective was to assess the performance of MALDI-TOF (Matrix Assistated Laser Desorption-Ionization–Time Of Flight) mass spectrometry for the specific identification of cercariae in human and non-human Schistosoma and for the detection of hybridization between S. bovis and S. haematobium. Spectra were collected from laboratory reared molluscs infested with strains of S. haematobium, S. mansoni, S. bovis, S. rodhaini and S. bovis x S. haematobium natural (Corsican hybrid) and artificial hybrids. Cluster analysis showed a clear separation between S. haematobium, S. bovis, S. mansoni and S. rodhaini. Corsican hybrids are classified with those of the parental strain of S. haematobium whereas other hybrids formed a distinct cluster. In blind test analysis the developed MALDI-TOF spectral database permits identification of Schistosoma cercariae with high accuracy (94%) and good specificity (S. bovis: 99.59%, S. haematobium 99.56%, S. mansoni and S. rodhaini: 100%). Most misidentifications were between S. haematobium and the Corsican hybrids. The use of machine learning permits to improve the discrimination between these last two taxa, with accuracy, F1 score and Sensitivity/Specificity > 97%. In multivariate analysis the factors associated with obtaining a valid identification score (> 1.7) were absence of ethanol preservation (p < 0.001) and a number of 2–3 cercariae deposited per well (p < 0.001). Also, spectra acquired from S. mansoni cercariae are more likely to obtain a valid identification score than those acquired from S. haematobium (p<0.001). MALDI-TOF is a reliable technique for high-throughput identification of Schistosoma cercariae of medical and veterinary importance and could be useful for field survey in endemic areas.
Volumetric imaging of human mesenchymal stem cells (hMSCs) for non-destructive quantification of 3D cell culture growth
Authors: Benavides Oscar R. , Gibbs Holly C. , White Berkley P. , Kaunas Roland , Gregory Carl A. , Walsh Alex J. , Maitland Kristen C.
Published: March 2023

The adoption of cell-based therapies into the clinic will require tremendous large-scale expansion to satisfy future demand, and bioreactor-microcarrier cultures are best suited to meet this challenge. The use of spherical microcarriers, however, precludes in-process visualization and monitoring of cell number, morphology, and culture health. The development of novel expansion methods also motivates the advancement of analytical methods used to characterize these microcarrier cultures. A robust optical imaging and image-analysis assay to non-destructively quantify cell number and cell volume was developed. This method preserves 3D cell morphology and does not require membrane lysing, cellular detachment, or exogenous labeling. Complex cellular networks formed in microcarrier aggregates were imaged and analyzedin toto. Direct cell enumeration of large aggregates was performedin totofor the first time. This assay was successfully applied to monitor cellular growth of mesenchymal stem cells attached to spherical hydrogel microcarriers over time. Elastic scattering and fluorescence lightsheet microscopy were used to quantify cell volume and cell number at varying spatial scales. The presented study motivates the development of on-line optical imaging and image analysis systems for robust, automated, and non-destructive monitoring of bioreactor-microcarrier cell cultures.
Validation of web-based audiometry version of HEARZAP
Authors: P. Pandi Renganath , Ramkumar Vidya
Published: March 2023

Aim

The purpose of this study was to verify the accuracy of the web-based audiometer HEARZAP in determining hearing thresholds for both air and bone conduction.

Method

Using a cross-sectional validation design, the web-based audiometer was compared to a gold standard audiometer. Participants in the study totaled 50 (100 ears), of which 25 (50 ears) had normal hearing sensitivity and 25 (50 ears) had various types and degrees of hearing loss. All subjects underwent pure tone audiometry, including air and bone conduction thresholds, using the web-based and gold standard audiometers in a random order. A pause between the two tests was allowed if the patient felt comfortable. The testing for the web-based audiometer and gold standard audiometer was done by two different audiologists with similar qualifications in order to eliminate tester bias. Both the procedures were performed in a sound treated room.

Results

For air conduction thresholds and bone conduction thresholds, respectively, the mean discrepancies between the web-based audiometer and the gold standard audiometer were 1.22 dB HL (SD = 4.61) and 0.8 dB HL (SD = 4.1). The ICC for air conduction thresholds between the two techniques was 0.94 and for the bone conduction thresholds was 0.91. The Bland Altman plots likewise indicated excellent reliability between the two measurements, with the mean difference between the HEARZAP and the gold standard audiometry falling within the top and lower limits of agreement.

Conclusion

The web-based audiometry version of HEARZAP produced precise findings for hearing thresholds that were comparable to those obtained from an established gold standard audiometer. HEARZAP, has the potential to support multi-clinic functionality and enhance service access.
Nuevas aportaciones al conocimiento de Norba Caesarina. Excavaciones en la Calle Adarve del Cristo nº 10 (Cáceres, Extremadura)
Authors: Menéndez Menéndez Andrea , Bustamante-Álvarez Macarena
Published: March 2023

En el año 2015 se realizó una intervención arqueológica de urgencia en el solar nº 10 de la calle Adarve del Cristo (Cáceres, Extremadura, España). A pesar de que la extensión total de solar intervenido era muy reducida, el interés de esta publicación radica en que se trata de uno de los pocos solares analizados en el casco histórico de la ciudad de Cáceres, concretamente, dentro del recinto amurallado. Esto hace que estemos ante una oportunidad ideal para conocer las distintas etapas cronológicas por las que ha pasado la ciudad. En este trabajo se analiza, desde el punto de vista arqueológico, las distintas facies intervenidas y se realiza una primera autopsia de los materiales arqueológicos allí exhumados.
E da noite se fez dia... Alumiar em período islâmico
Authors: Cavaco Sandra , Covaneiro Jaquelina , Catarina Coelho Maria , Sofia Gomes Ana , Inácio Isabel , Bugalhão Jacinta , Cristina Fernandes Isabel , Gómez Susana , José Gonçalves Maria , Liberato Marco , Dos Santos Constança , Catarino Helena
Published: March 2023

Os últimos anos foram decisivos nos estudos sobre a cerâmica islâmica em Portugal, não apenas pelo volume de materiais descobertos como pela quantidade de publicações disponíveis. Embora as lacunas ainda sejam significativas, em especial no que diz respeito aos períodos mais recuados, o tema adquiriu uma grande abrangência territorial, com um considerável número de sítios a permitir um enquadramento cronológico fiável. Neste artigo, tratamos os objectos de iluminação, propondo um ensaio de abordagem crono-tipológica para estas formas no actual território português.
Uma olaria quatrocentista de Serpa (Rua da Barbacã 29-33)
Authors: Sofia Antunes Ana
Published: March 2023

Nas escavações arqueológicas realizadas na Rua da Barbacã 29-33 (Serpa, Alentejo), junto ao Castelo, adossado à barbacã tardo-medieval da Alcáçova, identificou-se um compartimento com um forno que corresponderá a uma olaria. Esta funcionou no século XV e terá sido desactivada em torno a 1510, no âmbito do processo de reformulação urbanística e de consolidação do sistema defensivo desenvolvido naquele ponto do espaço urbano, onde seria edificada uma nova barbacã, que substituiria a barbacã medieval da Vila Velha.
POLÍTICAS PÚBLICAS Y AGUA: EL MARCO JURÍDICO E INSTITUCIONAL DE LOS SERVICIOS URBANOS DEL AGUA EN ESPAÑA
Authors: Ortega Asencio Navarro
Published: March 2023

El presente texto recoge la ponencia presentada en el II Congreso Internacional de Políticas públicas para América Latina celebrado en la Universidad do Vaje da Itajaí (Univali), el 25 de octubre de 2019. En la misma, expuse el marco jurídico e institucional básico de los servicios urbanos del agua en España con el fin de compararlo con el régimen de los servicios urbanos del agua en el Estado de Santa Catarina y de Brasil, en su conjunto. El texto presenta los contenidos de una manera divulgativa, evitando cualquier ornamento y referencia formal, sin utilizar referencias bibliográficas ni datos técnicos que dificulten su lectura.
ANALISE DA DESIGUALDADE SOCIOECONÔMICA SOBRE OS CASOS DE COVID-19 NO TOCANTINS
Authors: Ribeiro Milena Luiza , Paixão Adriano Nascimento da
Published: March 2023

O presente artigo apresenta contribuições preliminares a respeito dos fatores socioeconômicos associados à propagação dos casos de infecção e morte por Covid-19 nos municípios do Tocantins até o dia 28 de dezembro de 2020. Para tanto, utilizou-se uma metodologia baseada no uso de técnicas econométricas, a do modelo de regressão linear com o estimador de Mínimos Quadrados Ordinários com dados transversais coletados do Instituto Brasileiro de Geografia e Estatística (IBGE) e do SUS-Analítico. Os resultados demonstram que as variáveis de desigualdade, gênero, renda e raça são significantes para a explicação da quantidade de casos confirmados da doença em cada cidade e alertam para a necessidade de respostas que amenizem os impactos da pandemia para os grupos mais vulneráveis, principalmente neste momento de sobrecarregar no sistema de saúde.
ADOECIMENTO MENTAL EM ENFERMEIROS ATUANTES NA ASSISTÊNCIA AOS PACIENTES COM COVID-19
Authors: Silva Williane de Oliveira , Symara Abrantes  Albuquerque de Oliveira Cabral
Published: March 2023

Resumo: Introdução: Em março de 2020, foi declarada, pela Organização Mundial de Saúde, a pandemia pelo vírus SARS-Cov-2, causador da doença Covid-19. O vírus apresenta alta taxa de transmissão, e é responsável por uma infecção viral, pela qual uma porcentagem importante de indivíduos acometidos irão necessitar de uma assistência hospitalar especializada. Objetivos: Analisar através de uma revisão sistemática, o impacto da pandemia por COVID-19 na saúde mental dos profissionais enfermeiros atuantes nos serviços assistenciais de saúde. Metodologia: Trata-se de uma revisão integrativa da literatura, método que apresenta uma abordagem ampla de sistematização de evidências, na qual é possível incluir uma diversidade maior de estudos, envolvendo pesquisas e revisões. Resultados: após análise dos dados foram selecionados 16 artigos para o estudo final. Conclusões: Muitos fatores influenciaram para o adoecimento mental dos enfermeiros. Diante disso, é claro que os profissionais que exercem o cuidar de outros indivíduos também necessitam de cuidados e estratégias que prezem pela sua saúde mental e física, pois muitos profissionais encontram-se esgotados, com quadros depressivos, de ansiedade e medo em escala mundial, em decorrência da sobrecarga em decorrência da pandemia pelo novo coronavírus.

 

Palavras-Chave: Saúde Mental, Profissionais de Enfermagem, Covid-19
A SATISFAÇÃO DE ATLETAS USUÁRIOS DE CADEIRA DE RODAS MANUAIS QUANTO AO DISPOSITIVO E AO RECURSO
Authors: Tavares Camila Cristine , Rode Isabel Cristine , Hermes Chesani Fabíola , Nunes Bossardi Carina
Published: March 2023

Este trabalho objetiva analisar o nível de satisfação de atletas com deficiência física, usuários de cadeira de rodas manuais quanto ao dispositivo. O tipo de pesquisa realizado foi de caráter quantitativo e exploratório. Participaram da pesquisa 39 atletas usuários de cadeira de rodas, residentes da região do Vale do Itajaí. A coleta de dados aconteceu na clínica de fisioterapia de uma universidade comunitária, no Centro Especializado de Reabilitação Física e Intelectual (CERII), Associação de Tiro com Arco Itajaí (ATAI) e entre atletas de Handebol Paraolímpico Feminino de Balneário Camboriú. O instrumento de coleta de dados foi o teste chamado Quebec User Evaluation of Satisfaction with Assistive Technology (QUEST 2.0) (Avaliação da Satisfação do Usuário com a Tecnologia Assistiva de Quebec) que consiste em 12 itens relacionados à satisfação quanto ao uso da tecnologia assistiva. A média geral do recurso foi de 3,53. A satisfação quanto as dimensões (tamanho altura, comprimento, largura) foi a melhor média (3,61), facilidade de ajuste e a segurança obtiveram a mesma média (3,53). Contudo, o item com menor avaliação refere-se ao peso da TA (média de 3,3). A média geral do serviço foi de 3,07. A satisação quanto à qualidade dos serviços profissionais (inormações, atenção) foi a melhor média (3,38). Contudo, o com menor avaliação refere-se ao processo de entrega da TA (média de 2,92). Logo, os atletas mostram-se muito mais satisfeitos com as dimensões do que com o peso da tecnologia assistiva. A satisfação quanto à durabilidade de suas tecnologias assistivas teve média de 3,41, já para o conforto proporcionado pelas cadeiras a média foi de 3,48. A facilidade de uso foi o segundo critério mais bem avaliado (3,66) e a eficácia de uso da TA possui a média mais alta de todos os pontos referentes ao recurso (3,69). Os atletas com deficiência física estão mais satisfeitos com sua cadeira de rodas manual do que com a eficácia (o quanto seu recurso atende às suas necessidades) e menos satisfeitos com o peso. De acordo com resultados, os usuários mostram-se mais satisfeitos com o recurso (média de 3,53) do que com os serviços prestados (média de 3,07) e insatisfeitos quanto ao processo de entrega (procedimentos, tempo de espera) da CRM.
AVALIAÇÃO DO CONHECIMENTO DOS ESTUDANTES DE GASTRONOMIA SOBRE O GLÚTEN
Authors: Appel Suphiatti Isadora , Barretta La Bella Claiza
Published: March 2023

A doença celíaca é uma doença autoimune, que afeta pessoas geneticamente predispostas e na presença contínua do glúten, a doença autoperpetua-se, iniciando no intestino delgado e podendo acometer outros sistemas do organismo. O glúten é uma proteína encontrada no trigo, no centeio e na cevada, que são compostos por um grupo de proteínas chamadas prolaminas, podendo estar presente em alimentos naturalmente isentos de glúten por meio da contaminação cruzada. Logo, o conhecimento insuficiente dos profissionais da área de alimentos pode favorecer com a transgressão involuntária da dieta. Em vista disto, o seguinte trabalho possui o objetivo de avaliar o conhecimento dos estudantes de gastronomia sobre o glúten, a contaminação cruzada e a doença celíaca. Trata-se de um estudo descritivo, transversal e quantitativo, realizado a partir de questionário on-line e presencial no período de agosto e setembro de 2021. Após aplicação dos critérios de inclusão e exclusão participaram 60 estudantes que estavam cursando Gastronomia, em uma Universidade Comunitária de Santa Catarina. Dos 60 estudantes avaliados, 95% já ouviram falar sobre doença celíaca, porém somente 43,3% souberam defini-la corretamente. Assim como, em torno dos cereais que apresentam glúten, apesar de 100% dos estudantes relatarem o trigo, somente 36,7% marcaram corretamente os três cereais contendo glúten. Diante do exposto, é possível concluir que os entrevistados possuem conhecimento sobre alguns aspectos relacionados ao glúten, porém, sugere-se a implantação de mais disciplinas e conteúdos referentes a esse tema para atender os novos nichos do mercado de trabalho atual.Palavras-chave: dieta livre de glúten, glúten, Doença Celíaca, estudantes.
PROGRAMA UM MILHÃO DE CISTERNAS: UMA INOVAÇÃO SOCIAL INSTITUCIONALIZADA
Authors: Beltrão de Medeiros Carolina , Kelner Silveira Sergio
Published: March 2023

O semiárido brasileiro tem sofrido mudanças desde os anos 1990 com o Programa Um Milhão de Cisternas (P1MC), onde famílias selecionadas pela comunidade aprendem a construir e manter cisternas de placa (tecnologia social). Após sua difusão na região semiárida, o P1MC tornou-se uma política pública e o programa tem sido executado em parceria com atores organizacionais locais. A partir deste contexto, o objetivo do estudo é, a partir dos impactos esperados para uma iniciativa de inovação social em termos das dimensões de processo e resultado, segundo as categorias analíticas do quadro teórico de expansão de iniciativas de inovação social desenvolvido por Medeiros (2018), apresentar o P1MC como uma iniciativa de inovação social institucionalizada. O método utilizado foi estudo de caso em profundidade, com evidências qualitativas. Conclui-se que o P1MC se caracteriza como uma programa de inovação social institucionalizada, em que há a participação efetiva de atores sociais, organizacionais e institucionais. Porém, se não houver o esperado engajamento entre estes atores, não será possível dar continuidade a esta inovação social, mudando o seu movimento de expansão e involuindo na consolidação de seus principais resultados.
Simulating the Selection of Unique Industrial Equipment with Computer Models
Authors: Kurushbayeva D.T. , Oskorbin N.M.
Published: March 2023

This paper explores the optimal number of unique jobs for an industrial enterprise by using computer simulations to reduce overall costs of creating and operating these jobs through staff remuneration optimization. The study utilizes the author's mathematical models of workers' behavior in a stimulating environment and optimization of the number of similar jobs used in industrial enterprises. The paper employs computational mathematics and computer modeling to analyze potential solutions for organizing unique workplaces. The study demonstrates that the estimated number of unique jobs can be reduced by increasing work shifts, hiring qualified workers, and offering incentive wage rates. The paper presents the results of model computational experiments on the optimal number of jobs for performing a given amount of work in two shifts under three scenarios: attracting workers with average market qualifications, attracting more qualified workers with wages under average market conditions, and attracting more qualified workers with wages at increased rates.
A környezettudatos fogyasztói magatartás turisztikai aspektusai
Authors: Hegedüs Sára , Kiss Kornélia , Kovács Edina
Published: March 2023

A környezettudatosság és az egyéni cselekedetek környezeti hatásai napjaink egyre égetőbb kérdései. A turizmus környezeti fenntarthatósága – az ágazat jellegénél fogva – vitatott kérdés, a jellemző megközelítés alapján azonban normatív orientációként jelenhet meg, amelynek szükségessége mind a szolgáltatói, mind a fogyasztói oldalon meg kell mutatkozzon. Jelen cikk szakirodalmi áttekintést nyújt a környezettudatos turisztikai fogyasztói magatartást fókuszba állító kutatások eredményeiről, és bemutatja az arra ható legfontosabb egyéni és egyénen kívüli tényezőket. Az eredmények rendszerbe foglalásával a cikk aktuális kutatási irányokat jelöl ki: a környezettudatos turisztikai magatartás szereplők általi értelmezésének, illetve a társadalmi normák és a kulturális környezet hatásának vizsgálata további lehetőségeket tartogat.
Enseigner la lecture au primaire et au secondaire au primaire et au secondaire : quelles opérations de lecture, quels types de textes et quels gestes professionnels ?
Authors: Libion Morgane , Mahieu Luc , Pénillon Élodie
Published: March 2023

Le présent article vise à revenir sur les neuf séances d’analyse collaborative de pratiques d’enseignement de la lecture aux différents niveaux de la scolarité menées par le groupe de recherche CRIPEDIS (Centre de recherche interdisciplinaire sur les pratiques enseignantes et les disciplines scolaires) français dirigé par Jean-Louis Dufays et rassemblant des chercheurs et enseignants de différentes institutions en Fédération Wallonie-Bruxelles. Ce travail vise à valider et affiner l’usage de  trois grilles d’analyse  (les gestes professionnels, les schèmes et les opérations de lecture) en vue d’en faire des instruments d'(auto)évaluation des pratiques à destinations des formateurs et des enseignants. Ainsi, nous souhaitons observer dans quelle mesure il est  possible d’en dégager d’une part une typologie des objectifs des leçons en termes d’opérations de lecture et de choix de texte, et d’autre part une distribution signifiante des gestes professionnels  et didactiques, et des schèmes d’action transversaux mis en œuvre dans les différents cas de figure et selon les niveaux d’âge. Au terme de notre analyse, nous mettons en évidence une typologie des objectifs des leçons en termes d’opérations de lecture et de choix de texte, avec une progressivité de la compréhension vers l’interprétation et l’absence de l’appréciation. Concernant les gestes professionnels, des spécificités liées aux niveaux d’âge n’ont pu être observées au sein de notre corpus, ce qui indique peut-être qu’il existe une couverture généralisée des 21 gestes indépendamment des niveaux d’âge établissant alors le caractère curriculaire de la grille d’analyse.
éveil aux langues en Belgique francophone
Authors: Herbinaux Nadège , Van de Vyver Julie , Anckaert Philippe , Meunier Fanny
Published: March 2023

Dans le cadre des travaux du Pacte pour un enseignement d’excellence en Fédération Wallonie-Bruxelles (FWB), l'éveil aux langues (EAL) a été ajouté au programme des élèves en maternelle depuis septembre 2020. Selon les « Balises de progression de l’éveil aux langues » (Fédération Wallonie-Bruxelles, 2020), les objectifs de sensibilisation et de prise de conscience de phénomènes langagiers impliquent de développer des attitudes d’ouverture à la diversité linguistique et culturelle, de renforcer l’intérêt pour les langues et d’assurer le développement de savoirs relatifs aux langues. Divers projets de recherche de grande ampleur abordant l’EAL ont été menés en Europe, mais la situation en FWB n’a pas encore fait l’objet d’études spécifiques.

Notre recherche met en perspective les visées théoriques de l’EAL (inspirées de Candelier, 2008) et les pratiques enseignantes observées dans quatre classes de maternelle via deux questions de recherche : (1) Les pratiques observées rencontrent-elles les objectifs poursuivis par le document de référence Balises ? (2) Quels sont les freins et difficultés rencontrés dans la mise en œuvre de l’EAL en FWB ? 

Les pratiques déclarées récoltées lors d’entretiens semi-dirigés et l’observation des pratiques en classe ont permis l’analyse de la mise en œuvre de l'EAL. En nous basant sur le modèle ouvert de l’analyse de contenu qualitative (L'Écuyer,1990), nous avons identifié des catégories d’informations à partir des données brutes. La grille d’analyse nous permet de dresser une classification finale des freins et difficultés et ainsi de dégager des pistes d’amélioration de l’accompagnement des nouveaux acteurs de l’EAL.
Optimum and late sowing of mustard varieties show similar seed yield
Authors: Chowhan Sushan , Islam Majharul , Rana Md. Shohel , Sultana Mst. Rokeya , Ghosh Shampa Rani , Ahmmed Foysal , Ferdous Hossain Md. , Ali Md. Ibrahim , Khan Nazmul Alam , Rahman Md. Moshiur
Published: March 2023

Appropriate planting time of mustard (Brassica sp.) during winter determines the growth yield and quality of a particular cultivar. Since the shift of winter period over the last few years driven by climate change, a transformation in mustard cultivation is also observed. Thus, to study the extent of these variations we studied 6 mustard varieties (V1- Binasarisha-4, V2- Binasarisha-9, V3- Binasarisha-10, V4- BARI Sarisha-14, V5- BARI Sarisha-16 and V6- BARI Sarisha-17) under 3 different planting dates (D1-31st October, D2-10th November and D3-20th November) in the Magura district of Bangladesh to evaluate yield differences over sowing times. Field experimentation was set followed RCB (Randomized complete block) design. Data on growth and yield parameters were collected at various days after sowing. Outcomes noted that, most number of siliqua/plant was obtained with treatment combination D3 × V5 (190.33), siliqua length with D3 × V2 (7.95 cm), number of seeds per siliqua by D3 × V6 (36.30), thousand grain weight by D1 × V1 (3.90 g). Hence, correlation study suggested that, seed yield was positively related to number of siliqua/plant, siliqua length and number of seeds/siliqua. Though, BARI Sarisha-16 (V5) delivered top seed and stover yield in all sowing dates. But interaction effects depicted that planting on 10th (2.00 t/ha) and 20th November (1.99, 1.94 t/ha) gave similar seed yield like 31st October planting (2.31 t/ha); in addition, stover yield (6.70, 6.83 t/ha) also remained at peak with the later plantings (D2, D3). An increase in the tendency of life duration was noticed when sown on 20th November for most treatment combination. Overall, delayed sowing of mustard didn’t affect the yield and related attributes rather it accelerated to some attributes. Hence, rescheduling of optimum sowing time for mustard is now a time demanding concern with regard to weather change.
Pomiędzy Sherlockiem Holmesem a Eberhardem Mockiem: Hotel „Wielkie Prusy” Bohdana Kołomijczuka
Authors: Zywert Aleksandra
Published: March 2023

The subject of the analysis in this paper is the novel by Bohdan Kolomiichuk entitled The Great Prussia Hotel. From the genre point of view, the piece fits seamlessly into the so-called retro detective story with elements of the noir novel. The author’s variant of the retro detective story is clearly inspired by the classics of the genre, such as Artur Conan Doyle or Agata Christie (also contemporary ones, already containing further original modifications, such as Marek Krajewski or Konrad Lewandowski). This translates, for example, into the construction of the main character. Thus, a hybrid character is created, which appears to be a conglomerate of the features of Sherlock Holmes and Eberhard Mock. One should also pay attention to the construction of the novel space. Mapping activates various cultural and historical codes, it is not only an element accompanying the development of the plot but an expression of counter-hegemonic practice - the opposition to superficial top-down unification, anonymization and denationalization. Kolomiichuk’s novel can therefore be considered a borderland work in some places due to its multi-address character and a certain historical verve. In this context, at times drifting somewhat towards postmodernism, the Hotel smoothly fits into the trend of opening up popular literature to hybridity, borderline and multi-genre, visible since the turn of the 20th and 21st century, while taking into account national archetypes, images and motifs, and correlating them with the global (also contemporary) classics of the genre.
Uniwersytet, jazz i ironia: Uładzimir Karatkiewicz w kręgu ukraińskich sześćdziesiątników
Authors: Łewicki Wiaczesław
Published: March 2023

Artykuł poświęcony jest interakcji Uładzimira Karatkiewicza z młodymi ukraiński- mi poetami połowy XX wieku, studiującymi w Kijowie. Kwestię tę zbadano w kontekście ówczesnego życia literackiego, a także przez pryzmat przeglądowego i porównawczo-typologicznego odczytania ich dzieł. Jak wynika z przeprowadzonej analizy, autor białoruski zintegrował się ze środowiskiem, w którym ukształtował się jako pisarz zainteresowany tematyką historyczną i nietuzinkowy czytelnik. Podobnie jak Wasyl Symonenko i Mykoła Som przyczynił się do utrwalenia obrazu społeczności studenckiej owych lat, w szczególności do wzmocnienia atmosfery twórczej. Z pomocą ironii, a także gry z codziennymi szczegółami literaci tego pokolenia starali się odciąć od socrealistycznego obrazu świata i stereotypowych interpretacji ogólnej rzeczywistości. Z kolei dzięki intensywnemu polilogowi początku lat sześćdziesiątych mit uniwersytecki znalazł swoje odzwierciedlenie w strukturze tekstu kijowskiego.
Assessing strategies for enhancing the integration of cultural practices in teaching and learning of chemistry in secondary schools
Authors: Achimugu Lawrence , Fasanya Ayodele Gabriel , Abdulwaheed Ibrahim Opeyemi , Joshua Abel Okpanachi , Ibrahim Samuel , Shaibu Abimaje Etimane
Published: March 2023

The purpose of the study was to assess strategies for enhancing the integration of cultural practices into the teaching and learning of chemistry in secondary schools. The study adopted a descriptive survey research design and the population of the study comprised 19,920 respondents. Two research questions and two hypotheses guided the study. The instrument used for data collection was “Strategies Enhancing Integrating Cultural Practices Questionnaire (SEICPQ)” developed by the researchers. Mean and standard deviation were used to answer the research questions and t-test statistic was used to test the null hypotheses at 0.05 significance. The result revealed that incorporation of cultural practices into the chemistry curriculum content and adequate training of teachers on the integration of cultural practices in teaching chemistry and among others were identified as strategies that could enhance the integration of cultural practices. Non-incorporation of cultural practices into the chemistry curriculum content among others were identified as factors affecting the integration of cultural practices. The results also revealed that teachers and students do not significantly differ on their responses on strategies enhancing as well as the factors militating against the integration of cultural knowledge and practices into teaching of chemistry. Necessary conclusions were made.
Development, physiochemical and sensory evaluation of a new effervescent tablet formulation based on Moringa oleifera leaves extract
Authors: Iwansyah Ade Chandra , Fauzi Hilman , Cahyadi Wisnu , Hariadi Hari , Indriati Ashri , Wardhani Riuh , Abd Hamid Hazrulrizawati
Published: March 2023

New product development of Moringa oleifera effervescent tablet was optimization of the acid-base in the formula by using the D-optimal mix design. Chemical profiling and antioxidant activity of Moringa oleifera extract was evaluated. The physicochemical and sensory characteristics of Moringa oleifera effervescent tablet was measured. The results shows that chemical compounds of aqueous and ethanol extracts of Moringa oleifera extracts were hydrocarbons, esters, alcohols, and fatty acids. Both extracts exhibited high antioxidant by the IC50 value at 240.27 μg/mL and 301.21 μg/mL respectively. The quadratic model was found to be the best fitted for evaluating the solubility time, colour, taste and aroma; meanwhile, the special cubic model appeared to be the best fitting model for assessing the hardness response. The optimization process suggested that citric acid (22.19% w/w), tartaric acid (11.17% w/w), and sodium bicarbonate (33.64% w/w) was the best solution for this combination of variables, with a desirability value of 0.798.
Text World Theory and situation-model research: enhancing validity and tracking world-retrievals
Authors: Gibbons Alison
Published: March 2023

When Paul Werth invented the concept of ‘text-worlds’ (1999), he drew on existing psychological accounts of how the mind processes stimuli, such as the idea of the ‘situation model’ (van Dijk and Kintsch 1983). Yet despite the important advancements to Werth’s approach that have been made in stylistics over the years, situation-model research is rarely, if ever, referenced in what is now called Text World Theory (Gavins 2007). In this article, I consult empirical research on situation models, consequently making two significant contributions: I show how empirical situation-model research bolsters the validity of Text World Theory; I propose a new concept for Text World Theory—‘world-retrieval’—to account for how readers trace the interconnections between text-worlds and attempt to resolve processing difficulties. An analysis of the opening to Ray Loriga’s (2003) novel Tokyo Doesn’t Love Us Anymore demonstrates the value of the ‘world-retrieval’ concept.
A perfect match? A semiotic analysis of the wife figure in four early picaresque novels
Authors: Gussago Luigi
Published: March 2023

Picaresque fiction, or the so-called tale of roguery, focuses mainly on the adventures of a male protagonist. Although women characters rarely take the lead, they mark significant transitions in the narrative syntax. Mothers, wives, and lovers reject stereotypical role models and are invested with the potential of initiating the picaro to his life stages. This study will concentrate on the wife as a catalyst of semiotic value beyond her appointed role, exploring a corpus of four works published between 1554 and 1626: Lazarillo de Tormes, The Unfortunate Traveller, Guzmán de Alfarache, and El Buscón. In these narratives, wives oppose their fate of pure Objects in a conjugal contract, and become Subjects, Antagonists or Destinators, assertive “actants” (Greimas) in the semiotic grammar of narrative. My purpose is to re-evaluate, in deep-structure narrative terms, the significance of women characters in the largely male-centred, misogynist picaresque.
Possible alternatives for using kraft lignin as activated carbon in pulp mills – a review
Authors: Condezo Castro Tatiana Aurora , Cardoso Marcelo , Passos Rezende Ana Augusta , Oliveira Carneiro Angélica de Cássia , Quartaroli Larissa , Mudadu Silva Cláudio
Published: March 2023

The uses of kraft lignin (KL), obtained from the black liquor (BL) in the pulping process, allow the production of activated carbon (AC), a product with high added value in the pulp mill. The AC can be used in three different sectors in a cellulose pulp mill: sectorial treatment of the cellulosic pulp bleaching filtrates; wastewater treatment; and in the treatment of water received by the mill. Thus, this article considers the steps in the production of AC, their types, and the advantages and challenges of its use in the kraft cellulose pulp mill as well as in other industries.
Role of fiber density of amine functionalized dendritic fibrous nanosilica on CO2 capture capacity and kinetics
Authors: Singh Baljeet , Polshettiwar Vivek
Published: March 2023

Textural properties of the solid sorbents are critical to tuning their CO2 capture performance. In this work, we studied the effect of fiber density (in turn, pore size, distribution, and accessibility) on CO2 capture capacity and kinetics. CO2 solid sorbents were prepared by physisorption of tetraethylenepentamine (TEPA) molecules on dendritic fibrous nanosilica (DFNS) with varying fiber density. Among the various DFNS, the DFNS with moderate fiber density [DFNS-3] showed the best CO2 capture capacity under the flue gas condition. The maximum CO2 capture capacity achieved was 24.3 wt % (5.53 mmol/g) at 75 °C for DFNS-3 under humid gas conditions. Fiber density also played a role in the kinetics of CO2 capture. DFNS-1 with dense fiber density needed ∼10.4 min to reach 90 % capture capacity, while DFNS-3 (moderate fiber density) needed only 6.4 min, which further decreased to 5.9 min for DFNS-5 with lightly dense fibers. The DFNS-impregnated TEPA also showed good recyclability during 21 adsorption and desorption cycles under humid and dry conditions. The total CO2 capture capacity of DFNS-3 (14.7) in 21 cycles was 108.9 and 105.0 mmol/g under humid and dry conditions, respectively. Adsorption lifetime calculation and recyclability confirmed the fiber density-dependent CO2 capture performance.
Effects of nano-silica on the crystallization, structure, and mechanical properties of crosslinked ethylene-octene copolymer/nano-silica composites
Authors: Bai Nan , Shi Ying , Wang Yuan-Xia , Liu Li-Zhi , Song Li-Xin , Wang Chen-Chen , Song Li-Fu
Published: March 2023

Nano-silica (SiO2) has been widely used to fill rubbers (crosslinked) and usual polyolefin elastomers (POEs). SiO2 filled POE with crystalline structure can also be crosslinked. Crystallization, structure, and mechanical properties of crosslinked POE/SiO2 composites can be affected by SiO2. In this paper, crosslinked POE/SiO2 composites were obtained through two different methods: dynamic crosslinking in molten state and static crosslinking. For the non-crosslinked and static crosslinked composites, SiO2 had a more significant effect on the nucleation in non-crosslinked POE than in static crosslinked POE. For the dynamic crosslinked composite, SiO2 and crosslinking points hindered the mobility of POE chains and suppressed the POE crystallization, resulting in smaller and fewer crystals. Dynamic mechanical analysis showed that the SiO2 and POE were compatible, as evidenced by the lower tan(δ) value in SiO2-filled samples. The latter was more consistent with the higher tensile strength and elongation at break for the non-crosslinked and static crosslinked composites than for the non-filled samples. However, the dynamic crosslinked composite exhibited the worst elongation at break, resulting from the lowest number of crystals and shortened molecular chains due to the shearing that occurred during crosslinking process. The SiO2 had no observable effect on the permanent deformation of samples.