bluuebunny/crossref_metadata_2025 huggingface dataset:
Optimization of Machining Parameters in Drilling of Glass/Hemp/Bamboo Fibres Based Hybrid Polymer Composites
Authors: Bijjam Ramgopal Reddy , Chandanam Srinivas , Nandipati Govind , Dhoria Sneha H.
Published: July 2022

Significance of composite materials is increasing enormously in the progress of modern science and technology. The composites can be transformed into suitable components with high precision by machining, which can be used for present day applications. Drilling is crucial operation that is often used in the assembly of composite parts to obtain finished product. But the drilling induced damage may affect the performance of the composite. The present work is focused on the impact of various parameters in drilling like feed rate, spindle speed and drill diameter on surface roughness and delamination of glass/hemp/bamboo fibers embedded polymer hybrid composites. The composite is prepared by hand layup method. The drilling on composite is done on a CNC drilling machine and the maximum diameter due to delamination is measured using profile projector. To optimize drilling parameters for the sake of reducing the surface roughness and delamination factor, Taguchi method applied. The measured results are analyzed using commercially available software package Minitab19. The analysis is carried out using ANOVA (Analysis of Variance). In order to obtain best optimal conditions GRA (Grey Relational Analysis) is adopted. The results show that among all important parameters, feed rate and drill diameter are more crucial for surface roughness, whereas delamination is impacted by feed rate and speed of spindle.
Using ontological content patterns in knowledge base engineering for maintenance and repair of aviation equipment
Authors:   Matrosov Institute for System Dynamics and Control Theory (ISDCT) of Siberian Branch of RAS, Irkutsk, Russia, Dorodnykh N.O. , Nikolaychuk O.A. ,   Matrosov Institute for System Dynamics and Control Theory (ISDCT) of Siberian Branch of RAS, Irkutsk, Russia, Yurin A.Yu. ,   Matrosov Institute for System Dynamics and Control Theory (ISDCT) of Siberian Branch of RAS, Irkutsk, Russia
Published: July 2022

The article presents a method for creating knowledge base prototypes based on ontological design patterns and decision tables. The method contains the following steps: building an ontology of the subject area based on the ontological template of the content; formation of a production knowledge base based on the transformation of elements of the ontology of the subject area; filling the rule base using decision tables, as well as their interpretation and debugging. An ontological content template has been developed that describes the maintenance and repair process in accordance with current standards. The transformation of the ontology into a production model and the generation of decision tables were carried out using a programming system for production knowledge bases. In order to involve non-programming end users in the process of filling knowledge base structures with specific rules, a spreadsheet editor was used. A meaningful assessment of the obtained knowledge base was carried out using the author's shell program. The method and template proposed in the paper were tested in solving the problem of finding the causes of malfunctions and forming a sequenceof maintenance and repair of the power supply system of the Sukhoi Superjet 100 aircraft.
Additive regularization for topic modeling of social media communities
Authors:   Institute for Informatics and Mathematical Modeling, Kola Science Centre of the Russian Academy of Sciences, Apatity, Russia, Datyev I.O. , Fedorov A.M. ,   Institute for Informatics and Mathematical Modeling, Kola Science Centre of the Russian Academy of Sciences, Apatity, Russia
Published: July 2022

The task of modeling communities (groups) of users in social media is relevant in the framework of information support for decision-making at different levels of government. For automated extraction of the meaning of textual and related information, topic modeling methods are used. This article presents the experience of improving the results of social networks communities topic modeling using the Additive Regularization for Topic Modeling (ARTM). The improvement of the results is achieved through the use of basic regularizers available in the open-source software BigARTM. Topic models obtained using regularized ARTM are compared with topic models obtained by Latent Dirichlet Allocation and Probabilistic Latent Semantic Analysis. The experiments were carried out on a dataset, containing preprocessed texts of posts from communities of an online social network. In particular, the quality of topic models in terms of coherence, the purity of topics, and the sparsity of the distribution matrices are compared. Disadvantages of coherence metrics for assessing the quality of topic models obtained using the ARTM method are discussed. Additional metrics are proposed that can be used for assessing the quality of topic models. Conclusions are drawn about the suitability of the ARTM approach for modeling communities of online social networks. The results of this work can be applied in the development of information and analytical systems for supporting the management of regional development.
La militarización low profile de Estados Unidos en el Perú
Authors: Lajtman Bereicoa Tamara
Published: July 2022

Este trabajo propone dar cuenta, a partir de la sistematización y presentación de datos concretos, de la dimensión real de la presencia militar de Estados Unidos en Perú y su impacto geopolítico. Más allá de los cambios de gobierno y las profundas crisis políticas internas en el país andino, se analizaron los vínculos militares entre Perú y Estados Unidos, desde de la transición democrática en el 2001, con una perspectiva crítica orientada a identificar los intereses que mantienen esta dinámica. Se trata de una investigación cualitativa que triangula datos sobre la asistencia militar con información proveniente de entrevistas y de documentos de organismos oficiales. Como aporte, además de la sistematización de datos (ausente en la mayoría de los trabajos sobre el tema), se da cuenta de las estrategias que buscan legitimar o justificar el incremento y renovación de la presencia militar estadounidense en Perú.
A Guerra da Geórgia de 2008 e o processo de transformação do Exército Russo
Authors: Botafogo de Oliveira Fernando
Published: July 2022

a campanha realizada em 2008 pelo Exército Russo nas regiões da Abecásia e da Ossétia do Sul, na Geórgia, visavam anexar essas duas regiões com o intuito estratégico de formar uma zona de contenção ao envolvimento da Organização do Tratado do Atlântico Norte (Otan) em questões do Oriente Médio. A avaliação que as autoridades russas fizeram após o conflito apontava para uma possibilidade de transformar as capacidades militares do Exército Russo. Foram identificados três quesitos-chaves: tecnologia de armamentos, tecnologias de informação e comunicação, e estrutura de força empregada na campanha da Geórgia. Dessa forma, este artigo concentra-se em uma análise desses quesitos-chave bem como dos antecedentes que fizeram as autoridades russas perceberem as necessidades de transformação do seu exército. Para tanto, utiliza-se de uma pesquisa qualitativa alicerçada em uma revisão bibliográfica entre 2008 e 2014, além da consulta de documentos primários relacionados à defesa e segurança da Rússia durante esses anos.
Early Diagnosis and Prognosis of Surgical Sepsis with Simple Laboratory Criteria in the Elderly Patients: Clinical and Laboratory Substantiation
Authors: Ykovenko Taras  Vasilyevich , Movchan Konstantin Nikolaevich , Tkachenko Alexandr Nikolaevich , Yakovenko Olga Igorevna
Published: July 2022

Introduction. Clinical and laboratory criteria of the 2nd Consensus on Sepsis do not consider manifestations of the organ dysfunction and compensatory anti-inflammatory response in septic complications.

The aim of study was to develop laboratory parameters that reflect presence of sepsis at different stages of its course based on a detailed complete blood count; take into account the degree of pro-inflammatory response to infection, an anti-inflammatory component, presence of a particular sign of the multiple organ failure.

Materials and methods. This was a statistical study involving 152 patients with clinical and laboratory manifestations of surgical sepsis who underwent inpatient treatment at the surgical department of the NWSMU clinical hospital. In patients with signs of edogenic intoxication, whose diagnosis sepsis was not confirmed, septicopyemia was verified on autopsy in every 4 cases. The patterns of the score assessment of the sepsis process were determined in accordance with the complete blood count parameters.

Results. The degree of correlation between the level of procalcitonin and the scores" was noted at the level of 0.5019309, the degree of correlation between the level of blood lactate and the scores did not exceed 0.542726115.

Conclusions. If the total score is more than 7, the diagnosis of severe sepsis is highly probable. If the total score is less than 4 - presence of severe sepsis including the development of septicopiemia is improbable. If the total score is at the level of 5 -6 combined with long-term disease, the search for distant foci of septicopiemia and assessment of the prognosis of secondary sepsis is a priority.

In our opinion, the score assessment of simple laboratory parameters (detailed complete blood count), reflects, though indirectly, presence and stages of septic complications. The use of the score assessment in practical health care can improve screening of patients with surgical infection complicated by the sepsis development at all stages of medical care.
Atlanta 2012 Classification: Terminology and Definitions in the Diagnosis
of Acute Pancreatitis
Authors: Ektov Vladimir Nikolaevich , Khodorkovsky Mark Anatolievich , Skorynin Oleg Sergeevich , Minakov Oleg Evgenievich
Published: July 2022

The progress achieved in recent years in the treatment of acute pancreatitis (AP) is largely associated with the general views on understanding the key mechanisms of the disease development. The development of modern diagnostic and treatment technologies are based on the Atlanta 2012 classification of acute pancreatitis, which has received a global reach and widespread professional support. The review presents the key provisions of the Atlanta - 2012 classification according to the principles of AP diagnosis, classification of the disease, peculiarities of the radiation methods of examination in determining local complications and their morphological features. The publication emphasized the importance of timely stratification of the severity of AP based on the assessment of organ failure using a modified Marshall scale. Currently, the Atlanta 2012 classification has become a generally accepted international standard for assessing acute pancreatitis, which allows for effective multidisciplinary interaction of various specialists to optimize the results of treatment of this disease.
gobiernos locales y la construcción de perfiles productivos territoriales. Un estudio de casos (Córdoba, Argentina)
Authors: Valinotti Maria Florencia
Published: July 2022

Este trabajo analiza cómo los gobiernos locales se acoplan a los actores socioeconómicos del territorio para la construcción de perfiles productivos territoriales. A partir de un estudio de casos, se indagó en un conjunto de políticas públicas orientadas al desarrollo económico de dos municipios del centro-sur de la provincia de Córdoba, Argentina. Así, fue posible identificar que las formas de gobierno de la ciudad difieren según la relevancia de los activos “extraeconómicos” territoriales para las propias lógicas de acumulación empresarial. Se concluye que los estudios empíricos de pequeñas localidades constituyen un insumo central para dar cuenta de las especificidades que adquieren los gobiernos locales en función de las variadas articulaciones  entre los distintos agentes que conforman el territorio.
POROUS SILICON NANOSYSTEMS FOR ETHANOL SENSOR
Authors: Olenych I. B. , Monastyrskii L. S.
Published: July 2022

Sensory elements based on hybrid films containing porous silicon and reduced graphene oxide nanostructures have been created. A decrease in electrical resistance and an increase in the capacitance of sensor elements in the AC mode due to the adsorption of ethanol molecules have been registered. To assess the sensory properties of hybrid films, the concentration dependences of the adsorption ability in the 0–4.5% range were determined and the dynamic characteristics of ethanol sensors based on them were studied. It was found that sensor films with different ratios of porous silicon and reduced graphene oxide nanoparticles have the maximum sensitivity to ethanol in different concentration ranges. The functional properties of hybrid films can be controlled by changing the proportions of their components. The reaction time of sensory elements to changes in the concentration of ethanol molecules is 40–50 s. The obtained results expand the perspective of the application of nanosystems based on porous silicon in sensor devices.
FUNDAMENTAL LIMITS FOR THE LENGTH OF CONDUCTION CHANNEL IN THE FET ON TRANSITION METALS DICHALCOGENIDE SINGLE LAYER BASE
Authors: Strikha М. V. , Коrzh К. O.
Published: July 2022

The modeling of the limits of functionality for the FET with conduction channel on transition metals dichalcogenide single layer base and with different source/drain contacts material was performed in this article. The quantum mechanical transparency of the channel barrier was calculated with allowance for the realistic form of the barrier potential. It is demonstrated, that the FET with 4-nm channel of n-MoS2 and MoS2 (metallic modification) source/drain contacts retains high level of functionality for the range of comparatively low gate and drain voltages (the barrier transparency is lower than ½). The similar FET with Pt source/drain contacts, when Schottky barrier is essentially higher and the barrier transparency is essentially lower, keep it’s functionality for the 2 nm channel as well for all the realistic values of gate and drain voltages. The similar result was obtained for the FET with p-WSe2 channel and Pd contacts as well. The obtained estimations confirm the possibility of the complementary inverter on MoS2 n-type FET and WSe2 p-type FET with ultra-short channels in 2–4 nm range.
DANÇA NA EDUCAÇÃO INFANTIL: PERSPECTIVAS DE PROFESSORAS DE ARTE, EDUCAÇÃO FÍSICA E PEDAGOGIA
Authors: Drago Ana Julia , Rossi Fernanda
Published: July 2022

RESUMO: Este artigo tem como objetivo identificar e analisar a dança no contexto da Educação Infantil do município de Jaú/SP, na perspectiva de seis professoras, sendo duas Pedagogas, duas professoras de Arte e duas de Educação Física. Trata-se de pesquisa qualitativa, com coleta de dados por entrevistas semiestruturadas. Os resultados evidenciaram variadas concepções de dança das participantes, sendo predominante o significado da dança como forma de expressão. As professoras consideram que os cursos de formação inicial e de formação continuada não preparam para as práticas pedagógicas com a dança na escola. Há uma lacuna no planejamento e ausência de fundamentação em referenciais teóricos para o processo pedagógico com a dança, embora tenha sido elencada como relevante para a formação da criança. Evidenciou-se que as escolas costumam ter eventos festivos em que a dança está presente, mas que não contam com a participação ativa das crianças na construção coreográfica. Conclui-se que é fundamental atribuir significância para a dança na formação docente e nas propostas pedagógicas da Educação Infantil, para que essa linguagem se efetive como parte do processo educativo nesta primeira etapa da educação básica. PALAVRAS-CHAVE: Infância. Dança. Ensino e aprendizagem.
A BNC-FORMAÇÃO E SUAS IMPLICAÇÕES PARA OS CURSOS DE PEDAGOGIA
Authors: Gonçalves Amanda Caroline dos Santos , Mueller Rafael Rodrigo
Published: July 2022

RESUMO: O presente artigo tem como objetivo analisar quais as implicações da uma das recentes políticas públicas educacionais para os cursos de Pedagogia: a Base Nacional Comum-Formação (BNC-Formação). Buscando uma melhor compreensão do documento, o aprofundamento dos estudos aconteceu através da análise documental da própria resolução homologada em dezembro de 2019. Para isso, o conceito do que são políticas públicas educacionais é brevemente abordado e logo em seguida apresenta-se um pequeno histórico da Base Nacional Comum Curricular (BNCC) da Educação Básica. Sabendo que é a partir dela que a BNC-Formação vai se construir, uma breve introdução sobre as leis para o ensino superior e para os cursos de pedagogia é traçada, destacados por Saviani (2020), a fim de dar subsídios para a análise de dados. Em um terceiro momento é apresentado a análise da própria BNC-Formação, com as mudanças propostas por ela e quais os impactos que isso traz para os cursos de pedagogia e para a formação inicial do docente. Por fim, apresenta-se os resultados obtidos ao longo da pesquisa, destacando os possíveis regressos que a educação brasileira vem sofrendo com a aprovação de tais documentos. PALAVRAS-CHAVE: Políticas Públicas Educacionais. Base Nacional Comum Curricular. Base Nacional Comum Formação. Cursos de Pedagogia.
VIOLÊNCIA SIMBÓLICA E CAPITAL CULTURAL: UM ESTUDO SOBRE OS SENTIMENTOS E PERCEPÇÕES DE ESTUDANTES BOLSISTAS EM UMA ESCOLA PRIVADA
Authors: Savaris Ana Paula Elias , Volpato Gildo
Published: July 2022

RESUMO: As escolas da rede privada concedem bolsas de estudos para um determinado grupo social e, nesse contexto, há diferenças entre os estudantes que nelas estão inseridas. Alguns estudantes são detentores de um capital e de habitus que herdaram no âmbito da família, já outros, não tiveram esse privilégio e, muitas vezes, têm dificuldades de se reconhecerem no sistema escolar, o que gera uma violência simbólica. Nesse sentido, o objetivo geral da presente pesquisa foi compreender como a violência simbólica e as diferenças de capital cultural impactam os estudantes bolsistas de uma escola privada, localizada em Criciúma, SC. Quanto aos objetivos específicos, buscou-se analisar a renda familiar e o nível de escolaridade dos pais, bem como, identificar os sinais de violência simbólica sentidos ou percebidos pelos estudantes, e como a diferença de capital cultural se manifesta nesse espaço escolar. A abordagem da pesquisa foi de natureza qualitativa. Como técnica de coleta de dados, foi utilizado o questionário aplicado aos pais dos estudantes bolsistas, para obter dados sobre a renda e o nível de escolaridade, e aos estudantes bolsistas, para identificar a violência simbólica e impactos da diferença de capital cultural. Para a interpretação dos dados, foram utilizados os princípios da Análise de Conteúdo de Bardin (2011). O estudo teve como aporte teórico a sociologia da educação na perspectiva de Pierre (1930 – 2002) e autores que nele embasaram suas produções acadêmicas. O estudo apontou, conforme a teoria de Bourdieu, que quanto menor o capital cultural herdado, maiores são as chances de os estudantes sofrerem o que o autor denominou de violência simbólica; evidenciou também, a relação entre a renda familiar e o capital cultural e que os estudantes bolsistas, por possuírem um capital cultural herdado menor, podem sofrer com a violência simbólica, pois o próprio colégio, muitas vezes, colabora para a existência de atos de violência simbólica. 1Graduada em Pedagogia pela Universidade do Extremo Sul Catarinense – UNESC. E-mail paulinha.e@unesc.net 2Doutor em Educação pela Universidade do Rio dos Sinos (UNISINOS). Professor Permanente do Programa de Pós-Graduação em Educação – PPGE, e nos cursos de graduação em Pedagogia e Educação Física da Universidade do Extremo Sul Catarinense – UNESC. E-mail giv@unesc.net. Saberes Pedagógicos, Criciúma, v. 6, nº1, janeiro/abril 2022.– Curso de Pedagogia– UNESC 141 Palavras-chave: Violência simbólica; capital cultural; habitus; estudantes bolsistas.
ESTRATÉGIAS PEDAGÓGICAS DOS PROFESSORES DA EDUCAÇÃO INFANTIL DURANTE A PANDEMIA DO COVID-19 (SARS-COV2): UMA ANÁLISE A PARTIR DAS VIVÊNCIAS DAS EDUCADORAS
Authors: Ely Ingrid Domingos Marcolino , Giacomazzo Graziela Fátima
Published: July 2022

RESUMO: O presente artigo revela uma pesquisa que procurou investigar a respeito das estratégias pedagógicas dos professores durante a pandemia do Covid-19, especificamente da etapa da Educação Infantil na modalidade Pré-escola. Tendo como objetivo geral da pesquisa analisar as estratégias pedagógicas dos professores da Educação Infantil durante a pandemia do Covid-19 (SARS-CoV2) na rede pública do município de Sombrio/SC. Dessa forma, foi determinado os objetivos específicos: Conhecer o contexto da Educação Infantil, sua história e currículo; identificar as estratégias pedagógicas utilizadas pelos professores nos processos de ensino e aprendizagem da Educação Infantil; avaliar o processo de adaptação dos professores em relação aos dispositivos tecnológicos da cultura digital. A coleta de dados deu-se por meio de uma pesquisa de campo que aconteceu de forma totalmente remota, usando uma técnica denominada Grupo Focal, em que foi possível a participação de cinco professoras da Educação Infantil. A análise de dados está dividida em blocos: período de isolamento; retorno das atividades presenciais e pensamento pós pandemia. Em virtude dos aspectos abordados, conclui-se que as estratégias pedagógicas das professoras demonstraram resiliência, conhecimento e criatividade.
Prediction of Censored Weibull Lifetimes in a Simple Step-Stress Plan With Khamis-Higgins Model
Authors: Amleh M. , Raqab M
Published: July 2022

In this paper, we discuss the prediction of the lifetimes to failure of censored units from Weibull distribution for a simple step-stress plan under Khamis-Higgins model. Different methods of prediction are considered including maximum likelihood predictor, modifified maximum likelihood predictor, conditional median predictor, and best unbiased predictor. Another aspect of prediction is constructing prediction limits for future lifetimes of the censored units. The pivotal quantity, highest conditional density, and shortest-length based methods are discussed in this paper. Monte Carlo simulations are performed to compare all the prediction methods developed here and one real data set is analyzed for illustrative purposes.
A Novel Two-parameter Nadarajah-Haghighi Extension: Properties, Copulas, Modeling Real Data and Different Estimation Methods
Authors: Shehata Wahid , Yousof Haitham
Published: July 2022

A new two-parameter lifetime distribution is proposed and numerically studied. The new model has a flflexible failure rate shapes such as “monotonically increasing” , “monotonically decreasing” , “bathtub” , “constant” , “upside down” and “J-shape” . Various of its statistical properties are derived. A numerical analysis of skewness and kurtosis are presented. Many bivariate and multivariate extensions are also presented via Farlie Gumbel Morgenstern copula, Renyi entropy copula, modifified Farlie Gumbel Morgenstern copula and Clayton copula. Several estimation methods such as the maximum likelihood, Cramer-von-Mises, L-moment estimation, Anderson Darling, right Tail-Anderson Darling estimation and left tail-Anderson Darling are presented and considered. Numerical simulations are performed to assess the performance of estimation methods. An environmental data set is employed to measure flflexibility of the new model also to compare the estimation methods.
Detection Model With a Maximum Discounted Effort Reward Search to Maintenance a Best Decision Under the Quality Control Process
Authors: El-Hadidy Mohamed , Fakharany M.
Published: July 2022

This paper aims to get a needed service by making the best decision of choosing one suitable company (queue) from K − independent Markovian queues (companies). The customers arrive at each queue according to a Poisson process. The service time of each customer has an exponential distribution. In a steady-state, the best decision depends on the minimum cost of detecting the suitable company which provides the best service with high speed (maximum service rate). To minimize the detection cost and maximize the probability of detection, we consider the search effort bounded by a Gaussian distribution as a function with a discounted parameter. The effectiveness of this model appears in a simulation study and the comparison with other models.
A Weighted-path Following Interior-point Algorithm for Convex Quadratic Optimization Based on Modified Search Directions
Authors: Moussaoui Nouha , Achache Mohamed
Published: July 2022

Getting a perfectly centered initial point for feasible path-following interior-point algorithms is a hard practical task. Therefore, it is worth to analyze other cases when the starting point is not necessarily centered. In this paper, we propose a short-step weighted-path following interior-point algorithm (IPA) for solving convex quadratic optimization (CQO). The latter is based on a modified search direction which is obtained by the technique of algebraically equivalent transformation (AET) introduced by a new univariate function to the Newton system which defines the weighted-path. At each iteration, the algorithm uses only full-Newton steps and the strategy of the central-path for tracing approximately the weighted-path. We show that the algorithm is well-defined and converges locally quadratically to an optimal solution of CQO. Moreover, we obtain the currently best known iteration bound, namely, $\mathcal{O}\left(\sqrt{n}\log \dfrac{n}{\epsilon}\right)$ which is as good as the bound for linear optimization analogue. Some numerical results are given to evaluate the efffficiency of the algorithm.
Do Estado Vegetativo à Participação: A Amantadina Como Potenciadora do Programa de Reabilitação
Authors: Zão Ana , Almeida Ana Filipe , Beça Gustavo , Nunes Renato
Published: July 2022

A utilização da amantadina na prática clínica ainda parece pouco difundida, apesar da evidência crescente na emergência de alterações do estado de consciência após traumatismo cranioencefálico. Descrevemos o caso de um adolescente com traumatismo cranioencefálico grave por atropelamento. Após quatro meses de internamento num hospital central onde se manteve em estado vegetativo foi transferido para um centro de reabilitação. Iniciou um programa de reabilitação integral liderado por equipa médica, incluindo estimulação multissensorial e intervenção no meio envolvente. Iniciou amantadina, 50 mg/dia, titulada até 200 mg/dia, verificando-se melhoria clínica e funcional significativas, com emergência para estado de consciência mínima à terceira semana e recuperação da consciência à sexta semana de amantadina. Manteve melhoria progressiva mesmo após suspensão do fármaco. O caso descrito salienta a importância da intervenção holística e corrobora a literatura ao demonstrar a eficácia e segurança da amantadina na emergência do estado vegetativo.
Typical Imaging of Acquired Hepatocerebral Degeneration in a Paucisymptomatic Patient
Authors: Rocha Ana Luísa , Ruas Rogério , Sampaio Luísa , Abreu Pedro
Published: July 2022

N/a.
Diferenças entre os Doentes Submetidos a Colecistectomia Laparoscópica com Alta ao Final do Dia Versus Pernoita: Um Estudo Retrospectivo
Authors: Macedo-Alves Daniela , Monteiro Joana Mafalda , Freire Lígia , Guerreiro Emanuel
Published: July 2022

Introdução: Apesar da colecistectomia laparoscópica ser uma técnica cada vez mais realizada em regime de ambulatório, não é praticada em algumas unidades por ausência de pernoita. São objetivos deste estudo identificar as diferenças entre os doentes com alta ao final do dia versus pernoita e os fatores preditores de pernoita.Material e Métodos: Realizámos uma análise retrospetiva dos dados pré, peri e pós-operatório dos doentes operados entre janeiro de 2014 e dezembro de 2017, tendo-se procedido à análise estatística das variáveis.Resultados: Foram incluídos 311 doentes, sendo que apenas 33,4% pernoitaram. Destes, 81,7% foram operados depois das 14 horas. Como fatores preditores de pernoita foram identificados a idade (p = 0,001) no grupo da manhã, havendo a partir dos 61,50 anos (Younden index = 0,396) uma maior possibilidade de pernoita (15,3%) e a hora de início da cirurgia (p < 0,0001) no grupo da tarde, sendo que os doentes operados após as 16 horas e trinta minutos (Younden index = 0,492) têm maior possibilidade de pernoita (77,1%).Discussão: Grande parte dos doentes pernoitou devido à hora em que completou o recobro, uma vez que não se identificou uma causa para tal (84,7%). Caso a nossa Unidade não dispusesse de pernoita teríamos uma taxa global de internamento de 8,4%, que corresponde aos doentes com causa identificada para a pernoita e os doentes internados.Conclusão: A colecistectomia em ambulatório pode ser realizada em unidades que não disponham de pernoita, desde que as cirurgias decorram no período da manhã, os doentes sejam selecionados de forma criteriosa e exista a possibilidade de internamento.
SINAS: Effective Impact in the Quality Improvement of Ambulatory Surgery at an Ambulatory Centre
Authors: Alves Eurico Castro , Correia Teresa , Brandão Pedro , Teixeira Laetitia , Povo Ana
Published: July 2022

Introduction: The National Health Assessment System is a system designed by the Portuguese Health Regulatory Entity in order to evaluate the overall quality of the health care institutions. One of the key areas evaluated by the National Health Assessment System is ambulatory surgery. The aim of this study is to demonstrate that the introduction of the National Health Assessment System evaluation at our ambulatory centre not only improved the overall quality of ambulatory surgery but also the quality of the clinical record entries.Material and Methods: A retrospective analysis was performed from the hospital’s clinical database. The study was carried out at the ambulatory centre of the Hospital and University Centre of Porto, and included 100 consecutive surgical procedures, across all surgical specialties, previously selected by the National Health Assessment System audit performed in 2015 in our ambulatory surgery centre and other 46 surgical procedures performed in 2008 at our hospital, before the National Health Assessment System was implemented. The main outcome measure was the validation and record of the seven indicators of National Health Assessment System for ambulatory surgery.Results: We have seen an improvement in all indicators after the National Health Assessment System implementation, except for criterion 4.Discussion: Our study demonstrates that the introduction of the National Health Assessment System in our ambulatory centre resulted in the improvement in the quality of both of clinical practice, and clinical record keepingConclusion: We can conclude that the application of evaluation of quality indicators and benchmarking practices can be used to enhance healthcare outcomes.
Intervenção Precoce na Psicose em Portugal: Onde Estamos Nós?
Authors: Coentre Ricardo , Levy Pedro
Published: July 2022

N/a.
Obstáculos à Utilização Adequada das Urgências Pediátricas em Portugal
Authors: Rebelo Catarina Calheno , Sousa Tiago
Published: July 2022

N/a.
Impacto do Uso do Computador na Medicina Centrada na Pessoa em Medicina Geral e Familiar
Authors: Bernardo Marta
Published: July 2022

N/a.
Importwaren in die Hansestadt Stralsund 1250 - 1450 : Untersuchungen am archäologischen Material
Authors:   , Sloan Margret
Published: July 2022

This thesis categorizes archaeological finds from within a specific Hanseatic town into trade goods and local goods. The focus is on trade goods, where they were manufactured and how they arrived in the Hanseatic trading hub of Stralsund. The thesis looks at and contrasts the written and archaeological evidence for trade and discusses trade routes. All is presented utilising the philosophical approach formulated by the Swedish archaeologist Anders Andrén of correspondence, association and contrast.
Evaluation of growth performance of three strains of Nile tilapia Orechromis niloticus (L., 1758) and relation with water physico-chemical parameters reared in brackishwater ponds, Bangladesh
Authors: Washim Md. Mizanur Rahman , Rubel A.K.M. Shafiqul Alam , Mondal Debashish Kumar , Ahmmed Shawon , Sakib Md. Hashmi , Rahman Syed Lutfar , Islam Md. Latiful
Published: July 2022

This study was executed to resolve the argument on the growth superiority of three Nile tilapia strain such as, existing strain of Nile tilapia (ESNT), genetically improved farmed tilapia (GIFT) and sex reversed Monosex cultured in brackishwater pond and to comprehend the relationship of water physico-chemical parameters with the growth. Analogous age group of fish each weighing about 0.62±0.09 g with iso-stocking density (5ind./m2) and a culture tenure of 120 days was considered. The physico-chemical variables were at their optimal level over the entire time span of culture. However, all physico-chemical variable beyond alkalinity and ammonia showed strong positive correlation with mean fish weight. The study revealed that, weight gain by GIFT strain was nearly 25.9% and 5.10% higher than Monosex and ESNT strain, respectively. The highest final mean body weight was achieved in the GIFT strain (223±8.60 g) and there was significant difference among the strains. The highest apparent SGR of 16.85%/day was attained in the GIFT strain without significant variation across the strain. GIFT strain gave significantly (p<0.05) higher gross fish yield (9789.70 Kg ha-1) along with best feed conversion ratio (FCR) and survival, whereas they differed significantly among the three strains. The GIFT strain showed closest isomeric growth while the rest two had allotropic growth pattern. Thereby the results established that, strain difference significantly (p<0.05) impacted the growth parameters and GIFT was the best strain. Overall results greatly minimizes the controversy on growth pattern of different strains of Nile tilapia reared in brackishwater ponds, Bangladesh.
Automated Redox Monitoring System (ARMS): An Instrument for Measuring Dissolved Oxygen Levels Using a Potential Redox Sensor (ORP) in a Prototype of Shrimp Farming Pond with an Internet-Based Monitoring System
Authors: Siskandar Ridwan , Wiyoto Wiyoto , Hendriana Andri , Ekasari Julie , Kusumah Billi Rifa , Halim Glenaldi , Nugraha Indi Jaka
Published: July 2022

A data acquisition system for measuring and storing dissolved oxygen levels has been implemented to monitor water quality levels in shrimp culture media using an internet-based potential redox sensor (ORP). The purpose of this study is to apply ARMS, an instrument for monitoring internet-based potential redox data (dissolved oxygen levels) in shrimp culture media in real-time to determine the condition of water quality. This system is designed using an ORP sensor that uses WIFI communication. In principle, when the ORP sensor is placed in the water in the shrimp culture media, the potential redox data will be detected by the sensor connected to the ESP8266 which processes and transmits data which is then displayed and analyzed on the smartphone interface. In this study, 9 units of shrimp culture media prototype ponds were used for observational tests. The object of observation in the pond is water quality data in the form of sediment potential redox values. At this stage of research, two processes of observation of data collection were conducted. The first process is to monitor water quality conditions on the user's smartphone display, in the form of the potential redox value of each pool measured by the ARMS instrument for 12 weeks. The second process is to compare the potential redox observation data measured by the ARMS instrument and the ORP Meter in each pool. Observation of comparative data took place during the 6th week. The sediment potential redox values for treatments 1, 2, and 3 were 69 mV, 151 mV, and 210 mV respectively. The average redox potentials in the water are in the range of 90.56 mV to -263 mV for treatment 1; 90.75 mV to -62,934 mV for treatment 2; 90.65 mV to 60.73 mV for treatment 3. This range is the measurement range from week 0 (shrimp seed stocking) to week 4. The results of the comparison of the two tools show that the accuracy of the ARMS tool is more than 95%.
Qluster: An Easy-to-Implement Generic Workflow for Robust Clustering of Health Data
Authors: Esnault Cyril , Rollot Melissa , Guilmin Pauline , Zucker Jean-Daniel
Published: July 2022

The exploration of heath data by clustering algorithms allows to better describe the populations of interest by seeking the sub-profiles that compose it. This therefore reinforces medical knowledge, whether it is about a disease or a targeted population in real life. Nevertheless, contrary to the so-called conventional biostatistical methods where numerous guidelines exist, the standardization of data science approaches in clinical research remains a little discussed subject. This results in a significant diversity in the execution of data science projects, whether in terms of algorithms used, reliability and credibility of the designed approach. Taking the path of parsimonious and judicious choice of both algorithms and implementations at each stage, this paper proposes Qluster, a practical workflow for performing clustering tasks. Indeed, this workflow makes a compromise between (1) genericity, as it is suitable regardless of the data volume (small/big) and regardless of the nature of the variables (continuous/qualitative/mixed), (2) ease of implementation, as it is based on few easy-to-use software packages, and (3) robustness, through the stability evaluation of the final clusters and through recognized algorithms and implementations. This workflow can be easily automated and/or routinely applied on a wide range of clustering projects. A synthesis of the literature on data clustering as well as the scientific rationale supporting the proposed workflow is also provided. Finally, a detailed application of the workflow on a concrete use case is provided, along with a practical discussion for data scientists. An implementation on the Dataiku platform is available upon request to the authors.
Quantum Non-Locality and the CMB: what Experiments say
Authors: Consoli Maurizio , Pluchino Alessandro , Zizzi Paola
Published: July 2022

“Non-Locality is most naturally incorporated into a theory in which there is a special frame of reference. One possible candidate for this special frame of reference is the one in which the Cosmic Microwave Background (CMB) is isotropic. However, other than the fact that a realistic interpretation of quantum mechanics requires a preferred frame and the CMB provides us with one, there is no readily apparent reason why the two should be linked” (L. Hardy). Starting from this remark we first argue that, given the present view of the vacuum, the basic tenets of Quantum Field Theory cannot guarantee that Einstein Special Relativity, with no preferred frame, is the physically realized version of relativity. Then, to try to understand the nature of the hypothetical preferred Σ−frame, we consider the so called ether-drift experiments, those precise optical measurements that try to detect in laboratory a small angular dependence of the two-way velocity of light and then to correlate this angular dependence with the direct CMB observations with satellites in space. By considering all experiments performed so far, from Michelson-Morley to the present experiments with optical resonators, and analyzing the small observed residuals in a modern theoretical framework, the long sought Σ− frame tight to the CMB naturally emerges. Finally, if quantum non-locality reflects some effect propagating at vastly superluminal speed vQI→∞, its ultimate origin could be hidden somewhere in the infinite speed cs→∞ of vacuum density fluctuations.
Application of Artificial Intelligence Models for Aeolian Dust Prediction at Different Temporal Scales: A Case with Limited Climatic Data
Authors: Aryal Yog
Published: July 2022

Accurately predicting ambient dust plays a crucial role in air quality management and hazard mitigation. This study explores the accuracy of Artificial Intelligence (AI) models: adaptive-network-based fuzzy inference system (ANFIS) and multi-layered perceptron artificial neural network (mlp-NN) over the southwestern United States (SWUS) based on the observed dust data from IMPROVE stations. The ambient fine dust (PM2.5) and coarse dust (PM10) concentrations at monthly and seasonal timescale from 1990-2020 are modeled using average daily maximum wind speed (W), average precipitation (P), and average air temperature (T) available from North American Regional Reanalysis (NARR). The model’s performance is measured using correlation (r), root mean square error (RMSE), and percentage bias (% BISA). ANFIS model generally performs better than mlp-NN model in predicting regional dustiness over the SWUS region with r of 0.77 and 0.83 for monthly and seasonal fine dust respectively. AI models perform better in predicting regional dustiness at a seasonal timescale than the monthly timescale for both fine dust and coarse dust. AI models better predict fine dust than coarse dust at both monthly and seasonal timescales. Compared to precipitation, the near-surface average temperature is the more important predictor of the regional dustiness at both monthly and seasonal timescale. However, compared to the monthly timescale, air temperature is less more important predictor than precipitation at the seasonal timescale for PM2.5 and vice versa for PM10. The findings of this study demonstrate that the AI models have a good potential to predict monthly and seasonal fine and coarse dust at acceptable accuracy based on basic climatic data.
Impulsive Control and Synchronization for Fractional-Order Hyper-Chaotic Financial System
Authors: Li Xinggui , Rao Ruofeng , Zhong Shouming , Yang Xinsong , Li Hu , Zhang Yulin , Huang Jialin
Published: July 2022

This paper reports a new global Mittag-Leffler synchronization criterion with regard to fractional-order hyper-chaotic financial systems by designing the suitable impulsive control and the state feedback controller. The significance of this impulsive synchronization lies in the fact that the backward economic system can synchronize asymptotically with the advanced economic system under the effective impulse macroeconomic management means. Matlab LMI-toolbox is utilized to deduce the feasible solution in numerical example, which shows the effectiveness of the proposed methods. It is worth mentioning that the LMI-based criterion usually requires the activation function of the system to be Lipschitz, but the activation function in this paper is fixed and truly nonlinear, which cannot be assumed to be Lipschitz continuous. This is another mathematical difficulty overcome in this paper.
Approximate Analytical Solution of Unstable Ordinary Differential Equation Using Differential Evolution Algorithm
Authors: Wusu Ashiribo , Olabanjo Olusola
Published: July 2022

The application of evolutionary optimization algorithms in problem solving is currently gaining wide popularity. Use of Differential Evolution (DE) algorithm in obtaining analytically approximate solution of unstable second order initial value Ordinary Differential Equation (ODE) is presented in this work. The methodology involves solving an associated problem of optimization with con-strains to get an analytically approximate solution for the ODE under consider-ation. Three test cases were used to demonstrate the efficiency of our method. In comparison with other methods discussed in the literature, our method gave significant improvement on the accuracy of the obtained results.
Discontinuity in the Electronic Structure and Magnetic Order of β-Co1+xGa1-x
Authors: Fecher Gerhard H.
Published: July 2022

The present work reports on the calculated electronic and magnetic structure of the binary Co-Ga system at high Co content. β-CoGa adopts a simple cubic CsCl type structure. Well-ordered CoGa does not exhibit collective magnetism but is a paramagnetic, metallic compound. Neither Co nor Ga deficiency induces magnetic order, however, ferromagnetism is observed for Co-Ga anti-site disorder. The magnetic moment per cell increases up to about 1.2 μB in the completely disordered body centered cubic structure. With increasing Co content, Co1+xGa1−x maintains the CsCl type structure and becomes ferromagnetic. Most important, a discontinuity of the magnetic order with composition is observed at about 10% excess Co, where a change from a low magnetic moment state to a high moment state is observed. This is accompanied by a change in the electronic structure and transport properties. The discontinuity is forced by the increasing exchange splitting related to the localized moment of the additional Co atoms that replace Ga. Subsequently, the magnetic moment increases continuously up to 2.5 μB for x=0.6. For x≳0.6, the structure changes to face centered cubic with random site occupation and the magnetic moment further increases. Above the magnetic discontinuity, the Curie temperature increases linearly with the Co content from the onset of ferromagnetism, until it reaches its maximum in pure Co.
Spectroscopic and Voltammetric Study of Recycled and Cooper-Manganese-Doped Electrode Materials
Authors: Rada S , Unguresan Mihaela , Zhang J , Culea E
Published: July 2022

The novelty of this study consists in: i) synthesis and characterization of electrode materials recycled from a spent car battery and doped with MnO2 and CuO by the analysis of X-ray diffraction (XRD), Infrared (IR) and Electron Paramagnetic Resonance (EPR) data and ii) the investigation of electrochemical properties of prepared materials in view of new applications as electrode materials for battery. Electron Paramagnetic Resonance (EPR) data indicate that the intensity of the resonance line corresponding to the Cu+2 ion was modified with the increase of the dopant content. The analysis of X-ray Absorption Spectroscopy (XAS) data indicates that by increasing the dopant content there is a process of ordering the oxygen atoms around the lead similar to the PbO2 theoretical model. The electrochemical performances of the recycled and manganese-copper-doped materials are optimized for applications as new anodic electrode for the car battery.