bluuebunny/crossref_metadata_2025 huggingface dataset:
The research of clinical temporal knowledge graph based on deep learning
Authors: Diao Lijuan , Yang Wei , Zhu Penghua , Cao Gaofang , Song Shoujun , Kong Yang
Published: January 2021

Temporal knowledge base exists on various fields. Take medical medicine field as example, diabetes is a typical chronic disease which evolves slowly. This paper starts from actual EMR data of hospitals by combination of experience and knowledge of clinical doctors. Link prediction on clinical knowledge base such as diabetic complication requires the analysis on temporal characteristic of temporal knowledge base, which is a great challenge for traditional link prediction models. This paper proposes temporal knowledge graph link prediction model based on deep learning. This model selects the TransR transformation model suitable for big data and makes entity projection in relation space containing different semantic meanings, so as to vector the entities and complex semantic relations in graph. Then it adopts LSTM recursive neural network and adds the top-bottom relational information of the graph for sequential learning. Finally it constantly carries out deep learning through incremental calculation and LSTM recursive network to improve the accuracy of prediction. The incremental LSTM model highlights the hidden semantic and clinical temporal information and effectively utilizes sequential learning to mining forward-backward dependent information. It compensates the deficiency of lower prediction accuracy on timely knowledge graph caused by the traditional link prediction models. Finally, it is proved that the new model has better performance over temporal knowledge graph link prediction.
An improved intelligent bionic optimization algorithm based on the growth characteristics of tree branches
Authors: Tang Fei
Published: January 2021

To improve the optimization efficiency of the intelligent bionic optimization algorithm, this paper proposes intelligent bionic optimization algorithm based on the growth characteristics of tree branches. Firstly, the growth organ of the tree is mapped into the coding of the tree growth algorithm (intelligent bionic optimization algorithm). Secondly, the entire tree, that is the growing tree, is formed by selecting the individual that grows fast to generate the next level of shoot population. Lastly, if the growing tree reaches a certain level, the individual coding of the shoots is added to enhance the searching ability of the individuals of current generation in the growth tree growth space, so that the algorithm approaches the optimal solution. The experimental results were compared with the optimization results of the genetic algorithm and the ant colony algorithm using the classic optimization function and showed that this algorithm has fewer iterations, a faster convergence speed, higher precision, and a better optimization ability than the genetic algorithm and the ant colony algorithm.
Strengthen credit scoring system of small and micro businesses with soft information: Analysis and comparison based on neural network models
Authors: Li Bing , Xiao Binqing , Yang Yang
Published: January 2021

This study identifies credit risk sources, credit scoring index classification modes and modelling methods, and constructs a credit scoring system for small and micro businesses (SMBs) with soft information. Through the analysis and comparison of neural network models, this study demonstrates the superiority of the back-propagation neural network (BPNN) models for loan classification prediction. There are three contributions and innovations as follows. (1) Based on the actual demands and default characteristics of SMBs, this study adds the behavioural variables of loan managers to strengthen the role of soft information in credit scoring model. (2) It develops a hybrid analysis and comparison framework based on the BPNN model. It identifies that the BPNN model is more suitable for approving SMB loans, as it can precisely identify the second type of error. (3) Using the precious ledger data of SMB loans from a rural commercial bank in Jiangsu province, China, this study compares the prediction accuracy of the credit scoring model based on BPNN using two-level and five-level loan classifications. Further, it illustrates the applicability of the BPNN model. By connecting the practical operations of credit scoring and quantitative models, this paper supports commercial bank examination and approval work of SMB loans.
An efficient particle swarm optimization with homotopy strategy for global numerical optimization
Authors: Zhang Zhaojun , Li Xuanyu , Luan Shengyang , Xu Zhaoxiong
Published: January 2021

Particle swarm optimization (PSO) as a successful optimization algorithm is widely used in many practical applications due to its advantages in fast convergence speed and convenient implementation. As a population optimization algorithm, the quality of initial population plays an important role in the performance of PSO. However, random initialization is used in population initialization for PSO. Using the solution of the solved problem as prior knowledge will help to improve the quality of the initial population solution. In this paper, we use homotopy analysis method (HAM) to build a bridge between the solved problems and the problems to be solved. Therefore, an improved PSO framework based on HAM, called HAM-PSO, is proposed. The framework of HAM-PSO includes four main processes. It contains obtaining the prior knowledge, constructing homotopy function, generating initial solution and solving the to be solved by PSO. In fact, the framework does not change the PSO, but replaces the random population initialization. The basic PSO algorithm and three others typical PSO algorithms are used to verify the feasibility and effectiveness of this framework. The experimental results show that the four PSO using this framework are better than those without this framework.
Cost-benefit analyses of employment services for individuals with intellectual and developmental disabilities: A scoping review
Authors: Taylor Joshua , Avellone Lauren , Cimera Rob , Brooke Valerie , Lambert Aliza , Iwanaga Kanako
Published: January 2021

BACKGROUND: Understanding the cost-benefit of vocational rehabilitation services is critical to improve competitive integrated employment outcomes for individuals with intellectual and developmental disabilities (IDD). OBJECTIVE: The purpose of this scoping review was to analyze and synthesize micro and macroeconomic analyses of various types of vocational services which promote the employment outcomes of individuals with IDD. METHODS: This scoping review searched peer-reviewed and grey literature sources published between 2000 and 2020, examining both micro and macroeconomic analyses. RESULTS: A total of 26 studies met inclusion criteria. The majority of studies reported positive effects for the cost-benefit of integrated service approaches such as supported and customized employment. Conversely, our findings show no cost-benefit for sheltered workshops, and in some cases, negative effects. CONCLUSION: Limitations to the included studies as well as implications and recommendations for practice, policy, and future research are discussed.
An empirical evaluation of cost-based federated SPARQL query processing engines
Authors: Qudus Umair , Saleem Muhammad , Ngonga Ngomo Axel-Cyrille , Lee Young-Koo
Published: January 2021

Finding a good query plan is key to the optimization of query runtime. This holds in particular for cost-based federation engines, which make use of cardinality estimations to achieve this goal. A number of studies compare SPARQL federation engines across different performance metrics, including query runtime, result set completeness and correctness, number of sources selected and number of requests sent. Albeit informative, these metrics are generic and unable to quantify and evaluate the accuracy of the cardinality estimators of cost-based federation engines. To thoroughly evaluate cost-based federation engines, the effect of estimated cardinality errors on the overall query runtime performance must be measured. In this paper, we address this challenge by presenting novel evaluation metrics targeted at a fine-grained benchmarking of cost-based federated SPARQL query engines. We evaluate five cost-based federated SPARQL query engines using existing as well as novel evaluation metrics by using LargeRDFBench queries. Our results provide a detailed analysis of the experimental outcomes that reveal novel insights, useful for the development of future cost-based federated SPARQL query processing engines.
Well-being in open space offices: The role of office features and psychosocial working conditions
Authors: Lütke Lanfer Sarah S. , Becker Cathrin , Göritz Anja S.
Published: January 2021

BACKGROUND: There has been a trend to implement open space offices: wide-spread office floors with modern and colourful furniture. However, there is limited scientific knowledge on the effects of Open Space Offices (OSO). Studies are scarce and show heterogeneous results. OBJECTIVE: By using the Job Demands-Resources model as a conceptual framework, the present study aimed at investigating the influence of subjective and objective features of the OSO (i.e., office size, desk-sharing, openness) next to classical psychosocial working conditions (i.e., demands, resources) on irritation and subjective well-being. METHODS: Cross-sectional and longitudinal data out of four different organisations (490 participants, 43.73 years of age, SD = 12.02) were used. RESULTS: Results showed that both features of the OSO and working conditions play a role in well-being at work. In line with current studies, job demands and resources contributed more to irritation and subjective well-being than features of the OSO. CONCLUSION: The influence of traditional psychosocial working conditions has so far been neglected in research on OSOs. However, their contribution to employees’ well-being next to features of the OSO could explain the heterogeneous findings of the existing research on well-being in OSOs. Thus, when implementing OSOs, employees’ well-being can only be enhanced if working conditions are targeted in parallel.
Evaluation of vestibular functions and balance in Edirne Band musicians
Authors: Selçuk Halit , Özdinç Sevgi , Karahan Menekşe , Kayatekin Ayşe Zeynep Yılmazer , Uluçam Enis
Published: January 2021

BACKGROUND: It has been found that intense noise may affect the peripheral vestibular system and consequently causes problems in balance mechanisms. OBJECTIVE: The aim of this study was to investigate the effects of exposure to chronic noise on vestibular functions and balance in Edirne Band musicians. METHODS: Twenty-two individuals working in the Edirne Band for at least 5 years and a control group of 22 individuals working at Trakya University with similar sociodemographic characteristics were included. The socio-demographic questionnaire was used to inquire about the demographic characteristics of individuals, the ABC Scale to assess how they felt about the balance, and the DHI to determine the quality of life related to dizziness. A 3D ultrasonic system was used to assess the static and dynamic balance of the individuals. RESULTS: There was a statistically significant difference between the band and the control group in terms of longitudinal deviation and self-spin parameters of the Unterberger test, dizziness handicap inventory scores, functional balance according to activity-specific balance confidence scale (p < 0.05). CONCLUSIONS: As a result of our study, it has been shown that the balance, quality of life and vestibular system functions are negatively affected in the band exposed to noise for a long time.
Perbedaan Pemahaman Mahasiswa Akuntansi Syariah Dan Manajemen Haji dan Umrah terhadap Mata Kuliah Kewirausahaan
Authors: Fahlevi Muhammad Ryan
Published: January 2021

Abstrak : Penelitian ini bertujuan untuk mengetahui apakah terdapat perbedaan pemahaman antara mahasiswa Akuntansi Syariah dan Manajemen Haji dan Umrah terhadap mata kuliah Kewirausahan di Fakultas Ekonomi dan Bisnis Islam (FEBI) IAIN Metro. Data ipada ipenelitian iini imenggunakan ikuisioner iyang idisebarkan ilangsung ikepada i158 imahasiswa iAkuntansi idan iManajemen iHaji idan iUmrah isemester i4 iyang imasih iaktif isampai idengan itahun iajaran i2019/2020 idan itelah imenyelesaikan imata ikuliah iKewirusahaan. iMetode ianalisis idata idalam ipengujian ipenelitian iini imenggunakan iuji iMann-Whitney. iPendekatan iyang idigunakan idalam ipenelitian iini iadalah ipendekatan ikuantitatif. iHipotesis idalam ipenelitian iini imenyimpulkan ibahwa ipemahaman imenunjukan ibahwa inilai iAsymp.Sig i0.394 i> i0.05 yang berarti tidak terdapat perbedaan pemahaman mata kuliah Kewirausahaan antara Mahasiswa Akuntansi Syariah dan Manajemen Haji dan Umrah.Kata Kunci : Kewirausahaan, Pemahaman, Perencanaan, Produksi, Manajemn pemasaran
ECOSSISTEMAS COSTEIROS DA ILHA SNOW, ANTÁRTICA: FÍSICA, QUÍMICA E MINERALOGIA
Authors: Do Vale Lopes Davi , Soares de Oliveira Fábio , Ernesto G. R. Schaefer Carlos , Pereira Luís Flávio
Published: January 2021

A maior parte das áreas livres de gelo da Antártica ocorre próximo à zona costeira, locais relevantes pelas transferências de nutrientes realizadas pela fauna. O objetivo deste trabalho foi analisar amostras superficiais de solos dos ecossistemas costeiros da Ilha Snow, na Antártica Marítima, a partir das suas propriedades físicas, químicas e mineralógicas. Foram coletadas cinco amostras nos terraços marinhos. Nutrientes trocáveis, pH e textura foram determinados em amostras de TFSA. Determinaram-se teores de Al, Ca, Fe, K, Mg, Na, Si, Co, Cu, Mn, P, Pb e Zr por EDX. Identificou-se a mineralogia por DRX. Registraram-seecossistemas costeiros predominantemente arenosos, ácidos e com distrofismo generalizado.Transferências de nutrientes são essenciais para a adubação desses ambientes. O aporte nutricional pode ser identificado pelos valores elevados de P e C orgânico. Indícios de crioclastia e alterações químicas com ocorrência de esmectita, caulinita e goethita foram registrados. O monitoramento dos solos de ecossistemas costeiros fornece importantes subsídios para a identificação de alterações climáticas na Antártica.
Palavras-chave: crioclastia, fosfatização, fauna, ciclagem de nutrientes, terraços marinhos.
PROPOSTA METODOLÓGICAPARA O MAPEAMENTO DOS DANOS CAUSADOS POR EVENTOS EXTREMOS EM PRAIAS DENSAMENTE URBANIZADAS
Authors: Vargas Furtado Thales , Bonetti Jarbas
Published: January 2021

A repercussão dos efeitos de eventos extremos na zona costeira, sobretudo nos processos de erosão, tem estimulado a proposição de diferentes alternativas metodológicas para a análise de sua vulnerabilidade. A identificação das áreas mais suscetíveis à erosão representa um elemento de apoio à gestão e prevenção de desastres naturais, mas pouca atenção tem sido dada ao desenvolvimento de estratégias de mapeamento dos impactos efetivamente sofridos. Este estudo tem como objetivo propor uma metodologia para o mapeamento de danos baseada no emprego de indicadores de eventos erosivos na Praia dos Ingleses, SC. Após a ocorrência de fortes eventos erosivos na área de estudo foram realizados levantamentos de campo para identificar feições pontuais que caracterizassem distintos estágios erosionais no pós-praia, tendo os mesmos servido de base para a elaboração de um esquema de classificação contínuo ao longo da área. O mapeamento dos níveis de danos mostrou que existe uma variabilidade importante na exposição da praia estudada, havendo uma relação direta entre a proximidade da urbanização à linha de costa e a supressão duna frontal e com as maiores intensidades dos danos sofridos.
EROSÃO COSTEIRA NO MUNICÍPIO DE BARRA DE SANTO ANTÔNIO, LITORAL NORTE DE ALAGOAS
Authors: José Ferreira dos Santos Junior  , Ferreira Bruno , Machado Menezes Araujo Eduardo
Published: January 2021

Os ambientes costeiros configuram mosaicos bastante dinâmicos em constante transformação, com equilíbrio muito tênue em relação a modificações. De um modo geral, a ocupação do pós-praia e a retirada da vegetação rasteira acarretam mudanças na morfodinâmica, processos que foram identificados no município de Barra de Santo Antônio, no litoral norte de Alagoas. Para analisar esses processos foram utilizados geoindicadores, identificados em campo, o que possibilitou a caracterização e setorização dos processos mapeados. Foram delimitados oito setores, classificados segundo a tendência erosiva e/ouintensidade de processos já iniciados. A metodologia mostrou-se promissora, fornecendo dados que poderão ser refinados em estudos futuros. Dessa forma, o presente estudo visou à oferta de dados que possam auxiliar os gestores e órgãos competentes na tomada de decisão, bem como chamar a atenção para esse tema no município, estimulando ações e discussões sobre o planejamento territorial no processo de ocupação e uso das terras
Palavras-chave: linha de costa, Barra de Santo Antônio, dinâmica costeira, morfodinâmica praial.
MAPEAMENTO DA LINHA DE COSTA E AVALIAÇÃO DA VULNERABILIDADE E SUSCEPTIBILIDADE À EROSÃO COSTEIRA ENTRE A FOZ DO RIO SÃO JOÃO E A FOZ DO RIO UNA – CABO FRIO/RJ
Authors: Quintanilha de Castro Leonardo , Baptista da Rocha Thaís , Vieira Rosemary
Published: January 2021

O presente trabalho trata de uma avaliação da vulnerabilidade e susceptibilidade à erosão costeira através do uso de geoindicadores e do mapeamento da linha de costa entre a foz do rio São João e a do rio Una no município de Cabo Frio (RJ). Devido à ocorrência de eventos com ondas de alta energia, foram identificadas características erosivas em parte do arco praial, mesmo que tal praia não possua um quadro de erosão costeira constatada. A metodologia adotada envolve o uso de geoindicadores para a análise de dois pontos no arco praial, através do uso de uma série temporal de fotografias aéreas e imagens de alta resolução(anos 1970, 2005 e 2018) para a classificação do uso do solo da orla marítima e vetorização da linha de costa em ambiente SIG. Os resultados mostram que o ponto localizado mais ao norte do arco praial possui uma alta vulnerabilidade e susceptibilidade à erosão costeira, enquanto no ponto mais ao sul há uma baixa vulnerabilidade e susceptibilidade. Havendo um alto crescimento urbano e a intensificação da ocupação na orla marítima, com construções próximas ao perfil dinâmico praial, esta passa a sofrer ataque direto das ondas de alta energia. Em meio às possíveis alterações no clima, projetadas em estudos recentes, com elevação no nível médio do mar, maior frequência de eventos extremos, aumento da potência das ondas e ocupação massiva dos ambientes costeiros, estudos que embasem o planejamento de ocupação e gestão da orla marítima fazem-se necessários.
Palavras-chave: geoindicadores, praias arenosas, linha de costa, erosão costeira.
EDITORIAL
Authors: De Souza Pinheiro Lidriana , Gomes de Oliveira Sousa Paulo Henrique
Published: January 2021

A pressão humana nas zonas costeiras tem crescido exponencialmente nas últimas décadas devido aos usos derivados de diferentes atividades econômicas e sociais. A compreensão dos fatores que afetam a costa é essencial para fortalecer uma gestão sustentável e rigorosa desse tipo de espaço de fronteira entre a terra e o mar. Diversos grupos de trabalho se juntaram nesta edição especial para poder dar uma visão ampla e multicriterial desse tipo de transformação.
Attitudinal Implications and Behavioral Preferences to Electricity Consumption and Conservation in Putrajaya, Malaysia
Authors: CAMARA MORIKEN
Published: January 2021

The future demand of energy, mostly electricity, has been anticipated to escalate consequently as a result of the driving forces such as population growth, construction of buildings, endless appetites for economic growth and infrastructural developments. Therefore, this study assessed the influence of attitudes and behavioural preferences to electricity consumption and conservation among the civil service employees of the various ministries in Putrajaya, Malaysia. This study also attempted to relate attitudinal influence and actions of the civil service employees to the trends of electricity consumption in Putrajaya. The information derived from questionnaire survey conducted among the civil service workers of the ministries revealed that: (i) the civil service employees have positive attitudes towards electricity consumption and they practice favourable actions which promote green policy through electricity conservation; (ii) majority of the civil service employees have negative perceptions about population growth control; (iii) yearly electricity consumption trend in Putrajaya shows persistence increase in electricity consumption which affirms the predictions about future increase in electricity demand; (iv) annual increase in electricity consumption trend in Putrajaya after the implementation of green growth policy indicates that this policy is gradually working.
The INVESTIGATION OF THE DYNAMIC CHARACTERISTICS OF TURBINE IMPELLER DISC OF GAS TURBINE ENGINE USING ANSYS SOFTWARE
Authors: HUYNH THANH NGOC , TRẦN TOẢN QUỐC , PHẠM QUYẾT THÀNH
Published: January 2021

The rotating blades of a compressor or turbine in a gas turbine engine are made up of blades installed on the impeller disc. In particular, the impeller disc needs to be designed, manufactured, and installed to ensure its reliability and safety regarding the strict standards. If damage occurs during the operating process of the impeller disc, it will not only damage the motor but also endanger operators and other equipment. To increase the service time of the engine as well as shorten the production cost, gas turbine manufacturers around the globe are constantly improving technology. In which the monolithic casting impeller is an advanced technology that helps bring down the impeller mass, increasing its life by reducing the shock force on the connection the blades to the rotating disc. Nevertheless, this type of monolithic casting impeller disc reduces its damping effectiveness, which causes the oscillation force to increase significantly. In order to resolve this problem, it is necessary to look into these factors affecting the oscillation of the impeller disc. This paper presents the factors that affect the oscillation of the impeller disc through the study of the dynamic properties of its constituent components. The specific oscillation of the impeller disc, its own oscillation, as well as the impact of factors occurring during the operating of the disc was calculated by using ANSYS simulation software. By creating a three-dimensional model of the turbine blades in gas turbine engine ДP76, the individual oscillation values in a variety of engine operation modes were calculated to compare with the actual value while the engine is operating. The results have good agreement with the measured values. This affirms the advantages and prospects in applying ANSYS software to the design and manufacture of the turbine impeller disc.
Statistical analysis on length of stay in hospital
Authors: Nguyen Dung Tien , Ho Phuc Dang , Nguyen Thien Chi , Nguyen Van Thi Cam
Published: January 2021

The rising financial problems of healthcare institutions make studies of resource distribution more and more important and valuable. Among these studies, identification of length of stay of hospital patients (LOS) has attracted many scientists recently since it contributes to better knowledge of hospital costs and helps these institutions control the costs. This paper is devoted to study the length of stay of inpatients in hospital. Although predicting the length of stay is difficul, it is actually useful and benificial if some key factors that have influence on patient length of stay could be determined. This paper will be the basis for a running example that illustrates alternative models of the length of stay of hospital pentients. A total of 1189 episodes, which contains patient records, were analyzed by using some parametric and nonparametric statistical methods. In this study, several factors are first considered and investigated, including date of admission, medical admission unit, dianogsis result, international classification of diseases (icd), age, province, profession, recovery status when discharged, ethnic, and etc. Multiple regression analysis was also carried out for modeling length of stay as a function of several independent variables. Since the number of inpatient hospital stays is concerned, the family of Poisson distributions is used in this study. This approach is also supported by the corresponding histogram. Furthermore, univariate analyses showed that age, province, profession, admission quarter, recovery status when discharged, and diseases significantly influence on LOS. Finally, multivariate analysis of multiple regression model emphasized that type of disease, admission quarter, age group, and profession are the key factors that influence the LOS. These results may have some economic and clinical implications for not only patients but also hospitals.
Designing a test rig for structural static-load testing of small horizontal axis wind turbine rotor blades
Authors: Ngo Khanh Hieu , Pham Quoc Hung , Tran Trung Tien
Published: January 2021

This paper presents a design of a test rig for structural static load testing of small horizontal wind turbine blades. It is a next step after the success of the DeVie project, a join-research project to boost the wind energy knowhow between Germany and Vietnam. According to the IEC-61400-23 standard for full scale structural testing of rotor blades, and based on existing facilities of HCMUT, especially the aerospace engineering lab. and the engineering mechanics lab., we propose a prototype of a test-rig for structural static load testing of rotor blades. A rotor blade of 4 meters in length, manufactured by China, is used in the case study of our structural static-load test-rig. This paper used the reverse engineering method to determine the blade geometry and performance, since the blade was provided and not designed from scratch. Detailed steps to determine the test load for the rig are the most important, based on the blade design and the wind condition of Vietnam, a study case was set to start the process. Since that required a lot of experience and know-how, beside the work and research from our university, other critically important information was kindly provided by the German's experts in the field. Result of the blade tip displacement are wildly used in this industry to validate the blade design. Our test rig result in 0.289 meters were compared to the reverse engineering and simulation result of 0.28 meter with QBlade/FAST in the same blade loading shown well similarity, this result validated our work process. Future revision of the test rig is promised to provide more function such as fatigue test mode, higher load capacity, faster testing time as well as more accurate result, aiding the domestic market of composite wind turbine blade manufacturing which is still in its infancy.
A RARE CASE OF LEFT SIDED UNCOMPLICATED MORGAGNI HERNIA IN AN ADULT
Authors: Lahiri Raja , Dutta Santanu
Published: January 2021

Diaphragmatic hernias of Morgagni are anatomical defects in the anterior diaphragm that allow herniation of abdominal viscera into the thorax. They are the rarest of congenital diaphragmatic hernias and usually present in childhood with respiratory symptomatology. Adults are often asymptomatic or present with strangulation of visceral contents. We describe the case of a 60-year female presenting with chronic chest pain and diagnosed with a left sided Morgagni hernia, with stomach and greater omentum as its contents. She underwent thoracotomy repair of the hernia and the defect was repaired using polypropylene mesh.
Keyword: Morgagni Hernia, Adult, Thoracotomy, Mesh Repair
The Cult of Itonia Athena and the Human Conscience
Authors: Goula Eleni G.
Published: January 2021

The cult of Athena as Itonia is today almost completely unknown. Even in antiquity it was limited to specific areas as a local cult of the Aeolian tribe of the Boeotians, where, however, it had universal currency. Known places of her cult are in Thessaly, Boeotia and the island of Amorgos. At the Boeotian city of Koroneia, although the sanctuary of Itonia Athena is referring by the ancient writers (Pausanias and Strabo), its location has not been securely identified and the character of her cult is not well known. The available evidence (literary testimonies, mythological reports and archaeological data) suggest that her worship in Koroneia was a peculiar kind of mystery cult, which had accepted the influence of Orphism. This article highlights the properties of the forms involved in this secret cult and interpret the content of her worship in a philosophical context, with reference mainly to Aristotle’s work “On Memory and Remembrance”. The view supported by the present article is that her worship was oriented towards the achievement of self-awareness, to the Delphic oracular maxim “know thyself” (γνώθι σαυτόν). That was considered essential for the formation of the cultural consciousness of the societies of ancient Greece. This is a parameter of knowledge that in our modern societies has been forgotten, leading consequently to the misinterpretation of cultural development and a completely different perception of cultural memory and consciousness.
Intracellular Acidification Suppresses Synaptic Vesicle Mobilization in the Motor Nerve Terminals
Authors: Zefirov A. L. , Mukhametzyanov R. D. , Zakharov A. V. , Mukhutdinova K. A. , Odnoshivkina U. O. , Petrov A. M.
Published: January 2021

Intracellular protons play a special role in the regulation of presynaptic processes, since the functioning of synaptic vesicles and endosomes depends on their acidification by the H+-pump. Furthermore, transient acidification of the intraterminal space occurs during synaptic activity. Using microelectrode recording of postsynaptic responses (an indicator of neurotransmitter release) and exo-endocytic marker FM1-43, we studied the effects of intracellular acidification with propionate on the presynaptic events underlying neurotransmitter release. Cytoplasmic acidification led to a marked decrease in neurotransmitter release during the first minute of a 20-Hz stimulation in the neuromuscular junctions of mouse diaphragm and frog cutaneous pectoris muscle. This was accompanied by a reduction in the FM1-43 loss during synaptic vesicle exocytosis in response to the stimulation. Estimation of the endocytic uptake of FM1-43 showed no disruption in synaptic vesicle endocytosis. Acidification completely prevented the action of the cell-membrane permeable compound 24-hydroxycholesterol, which can enhance synaptic vesicle mobilization. Thus, the obtained results suggest that an increase in [H+]in negatively regulates neurotransmission due to the suppression of synaptic vesicle delivery to the sites of exocytosis at high activity. This mechanism can be a part of the negative feedback loop in regulating neurotransmitter release.
Deep Learning and Autoregressive Approach for Prediction of Time Series Data
Authors: Rather Akhter Mohiuddin
Published: January 2021

A deep neural network based approach for prediction of non-stationary data has been proposed in this work. A new

regression scheme has been used in the proposed model. Any non-stationary data can be used to test the efficiency of

the proposed model, however in this work stock data has been used due to the fact that stock data has a property

of being nonlinear or non-stationary in nature. Beside using proposed model, predictions were also obtained using some

statistical models and artificial neural networks. Traditional statistical models did not yield any expected results;

artificial neural networks resulted into high time complexity. Therefore, deep learning approach seemed to be the best

method as of today in dealing with such problems wherein time complexity and excellent predictions are of concern.
Características dos Pacientes com Leucemia Infantil no Âmbito Hospitalar e a Contribuição da Fisioterapia: um Estudo Retrospectivo
Authors: Ferreira Gabriella , Santos Emanuelle Gouveia dos , Pinto Isabelle Alves , Riceto Isabelle , Israel Vera Lúcia , Cavalieri Edneia Amancio de Souza Ramos
Published: January 2021

Introdução: As leucemias são caracterizadas pela presença de células imaturas na corrente sanguínea, provenientes das células tumorais na medula óssea, que substituem as células sanguíneas saudáveis. Em crianças com leucemia, é possível visualizar alterações fisicomotoras e respiratórias, como fraqueza muscular, fadiga e redução da função pulmonar. A fisioterapia previne as complicações oriundas do câncer, com uma abordagem biopsicossocial prevista na Classificação Internacional de Funcionalidade, Incapacidade e Saúde (CIF). Objetivo: Avaliar as características de crianças com diagnóstico de leucemia, a contribuição da fisioterapia e investigar o uso da CIF. Método: Trata-se de um levantamento descritivo retrospectivo de prontuários de 76 crianças com diagnóstico de leucemia linfoide aguda (LLA) e/ou leucemia mieloide aguda (LMA), em Hospital Terciário de Curitiba, com diagnóstico entre 2015 e 2018. Resultados: A média de idade dos pacientes foi de 6,75 ± 4,17 anos; 89,5% (n=68) dos diagnósticos eram LLA, 5,3% (n=4), LMA e 5,3% (n=4), de ambas. A maioria, 67,1% (n=51), residia em Curitiba-PR e Região Metropolitana; 63,2% (n=48) utilizaram o sistema de saúde pública como meio de acesso ao hospital e 36,8% (n=28) usaram outros. Dos 76 prontuários analisados, apenas 14,4% (n=11) registraram atendimento fisioterapêutico e o modelo biopsicossocial proposto pela CIF esteve ausente. Conclusão: Apesar da disponibilidade do serviço de fisioterapia no hospital, não foi identificado um padrão de avaliação, diagnóstico e prescrição fisioterapêutica, assim como os principais acometimentos neuropsicomotores de crianças com leucemia.
Qualidade e satisfação no atendimento ao cliente: Desafios para a administração pública
Authors: Moraes Heliel Barros
Published: January 2021

A Administração Pública tem muitos desafios que vão desde as instâncias decisórias até a dificuldade de gerir com poucos recursos. Aspectos estes, muito relevantes cujo caminho perpassa pela satisfação do cliente, que é o foco de qualquer organização. Desse modo, neste artigo, os objetivos propostos são demonstrar que a satisfação no atendimento ao cliente é fundamental para que este se sinta satisfeito e tenha suas expectativas superadas; apresentar sugestões de aprimoramento dos métodos empregados no atendimento e, por fim, discorrer proposições para responder aos questionamentos dos clientes. Como campo de pesquisa, o ambiente analisado passa-se em um setor de atendimento ao público de uma Organização Militar da Marinha do Brasil, em que foram levantados os principais problemas encontrados no atendimento. O estudo debruça-se com o intuito de demonstrar possíveis ações que poderão contribuir para que o público-alvo possa sentir-se atendido dentro das suas expectativas se e sintam satisfeitos com o trabalho prestado. Para tanto, buscou-se analisar como a organização implementa a cultura, no âmbito de sua estrutura, a influência do bom atendimento, observando os objetivos do accountability, na prestação das informações solicitadas com máxima transparências das ações, além da compliance, que norteia a aplicação de como o trabalho é realizado na prestação do serviço. Como há outras organizações públicas que atendem ao público e que possuem dinâmicas parecidas, os apontamentos aqui apresentados servirão de contribuição para outras entidades.
Supressão de corrente parasita em rolamentos de Motor Brushless DC acionados por inversor
Authors: Parigi Filho Éder Aparecido , Riehl Rudolf Ribeiro , Ulson José Alfredo Covolan
Published: January 2021

O acionamento e controle de um motor de corrente contínua sem escovas (Brushless DC motor), é realizado através da utilização de um Inversor de Frequência com Modulação por Largura de Pulso (PWM). Devido à alta frequência deste inversor, capacitâncias parasitas são estabelecidas nas partes metálicas do motor, permitindo a circulação de correntes de alta frequência. Estas correntes que passam pelos rolamentos do motor podem causar erosão eletrostática nas pistas do rolamento, gerando vibrações indesejadas e reduzindo substancialmente a vida útil do mesmo. O objetivo deste trabalho é o estudo de abordagens para a mitigação das correntes parasitas em motores de corrente contínua sem escova, comumente designados de motores BLDC. Mais especificamente, a partir do estudo das abordagens para a mitigação disponíveis na literatura, bem como o estudo e ensaio de um motor BLDC de pequena potência, abordagens para a mitigação da corrente parasita são estudadas levando em consideração suas vantagens e desvantagens num cenário industrial. Através de testes em laboratório, são determinados os valores das suas capacitâncias parasitas, utilizando uma Ponte RLC e, realizados os cálculos destas capacitâncias por meio de equações características, para posterior comparação, permitindo assim a correta especificação de uma nova capacitância interna, de forma a gerar uma alta reatância entre o eixo e carcaça, reduzindo substancialmente os valores das correntes circulantes de modo comum nos rolamento do motor. São apresentados resultados de simulações utilizando as capacitâncias medidas, com e sem a introdução desta nova capacitância entre o eixo e a carcaça do motor, através das curvas da tensão de eixo e corrente de eixo, mostrando que há a mitigação desta corrente de eixo, atendendo as referências citadas no texto. Pode-se concluir que tal abordagem apresenta as seguintes contribuições: mitiga a corrente de descarga nos rolamentos de motores BLDC com grande eficiência; contribui de forma direta para o aumento da vida útil dos motores BLDC; dispensa o uso de abordagens que apresentam a necessidade de manutenção periódica como, por exemplo, as escovas no eixo e/ou graxas condutivas nos rolamentos. Como desvantagem dessa abordagem pode-se citar o aumento de uma etapa no processo de produção do motor.
Prospects for chemical reclamation of acidic soils
Authors: Baybyekov Ravil , Gulyuk Georgiy , Akanova Natal'y
Published: January 2021

The presented materials are prepared on the basis of the results of long-term field experiments of domestic and foreign research institutions, results of agrochemical monitoring in the system of agrochemical service of the Russian Federation in various soil and climatic zones of Russia. The materials substantiate the importance and role of lime acidic soils, presented analysis of the state and dynamics of acidity of soils of agricultural land, the features of the use of different forms of limecontaining materials. The main functions of soil lime are indicated and the consequences in case of weakening of soil acidity are predicted. It has been established that the effect of the reclamation on the acidity of the soil is divided into two periods. The maximum displacement of pHKCl is observed 3…5 years after the introduction of the reclamation. The prevailing doses of lime in the materials given were doses of Saso3 4…6 t/ha, i.e. the most commonly used in the Non-Black Earth area. The quantitative parameters of changes in the level of acidity of the environment with the systematic use of physiologically acidic mineral fertilizers, especially nitrogen and potassium, which have an increasing effect on calcium loss from the soil. The growing negative effect of nitrogen-potassium fertilizers on the physical and chemical properties of the soil can lead first to their partial, and then to complete inefficiency on turf-sub-golden soils. The quantitative parameters of changes in the level of soil response in flood conditions during rice cultivation have been established. The results of the effect of different doses of lime on crop yields are presented. It is noted that soil lime is the main environmental measure to ensure the stabilization of the environmental safety of agro-censors and obtain products that meet sanitary standards. The need to restore the practice of lime in the right volumes in the near future is emphasized.
Adaptive landscape diagnostics and assessment of the state of the soil cover structure of reclaimed territories by transectcatenation method
Authors: Ustinov Mihail , Glistin Mihail
Published: January 2021

The basis of adaptive landscape diagnostics and assessment of the structure of the soil cover of the reclaimed territories is based on the basin principle, since the drainage basin is the prevailing geosystem that forms the landscape everywhere, the fundamental concept of which is based on the idea of the interrelation and interdependence of all natural phenomena of the earth’s surface. The key geosystem unit for mapping the soil cover structure and its diagnostics in the catchment area is the transect-catena. In the transect-catena, as a natural body, not torn out of the space and time of regional development of the territory and being its full-scale model, and an information key, the areal «geometric shape» (cartography) of the soil cover is combined with catenary (geochemical conjugation) and with structural functionally organization of geosystems.
Hydrological and gas regime of swamps in the conditions of forest reclamation
Authors: Inisheva Lidiya , Shaydak Leh , Babikov Boris
Published: January 2021

The effective of forest reclamation in oligotrophic and eutrophic swamps in the southern taiga and forest-steppe zones of Western Siberia are described. The state of the hydrological and gas regime of peat deposits is analyzed. It is concluded that forest reclamation 60 years ago on oligotrophic and eutrophic swamps has little effect on the hydrological and gas regime of the reclaimed territory at this moment. These regimes are approaching to their natural state, which indicates that the area is re-waterlogged in the absence of operation of the drainage system.
Arnoldo Puello Benedetti
Authors: Editorial Comité
Published: January 2021

El profesor Arnold Puello Benedetti nació en la población de Turbaco, al norte del departamentode Bolívar-Colombia el 19 de marzo de 1926. Muy joven, con solo 18 años de edad, ingresó a la Universidad de Cartagena para cursar estudios médicos, de los cuales obtuvo la respectiva titulación en el año 1949. Al año siguiente cumplió con el requisito legal de la medicaturarural, la cual adelantó en el Sanatorio del Lazareto de Agua de Dios en el departamentode Cundinamarca. Entre los años 1951 y 1952 permaneció en la ciudad de Bogotá y estuvo vinculado como subdirector al Instituto Lleras Acosta.
Enclavijamiento cefalomedular en el manejo de fracturas inestables de cadera
Authors: Fonseca Caro John Fredy , Matson Carballo Gustavo , Pereira Betancourt Carlos , Rivera Martínez Edgardo
Published: January 2021

Introducción: las fracturas inestables intertrocantéricas de cadera en el adulto mayor son problemas de salud pública. Su manejo se realiza con osteosíntesis con clavos cefalomedulares, de los cuales existen varios diseños.Objetivos: determinar si hay diferencias en los resultados clínicos con el uso de clavosTargon-PF y hoja espiral TFN.Metodología: se realizó estudio por conveniencia, prospectivo, en 69 pacientes adultos que presentaron fractura intertrocantérica inestable. Los pacientes fueron llevados a cirugía para osteosíntesis con clavo cefalomedular. Fueron divididos en dos grupos: [A] implante de dos tornillos a cuello (Targon-PF) y [B] Hoja espiral (TFN). Para ambos grupos se realizó técnica quirúrgica convencional y se evaluó el tiempo quirúrgico, sangrado, complicaciones intraoperatorias, resultados de funcionalidad y consolidación clínica y radiológica.Resultados: se realizó seguimiento promedio de 23 meses. Con el uso de uno u otro implante, no se observaron diferencias estadísticamente significativas en el retorno de la funcionalidad. Fueron más frecuentes las complicaciones Cut Out y mal posición en el grupo Targon-PF, sin diferencia significativa. Fue menor el tiempo quirúrgico con el TFN, 62.4 ± 15.7 minutos mientras que con Targon-PF fue 86.5 ± 31.7 minutos, p<0.0002.Conclusión: no se observaron diferencias significativas en los resultados clínicos con el uso de clavos Targon-PF y hoja espiral TFN. Rev.cienc.biomed. 2015; 6(2):265-271
Manejo analgésico en pacientes con fracturas de extremidades
Authors: Miranda Rodríguez Byron A , Carmona Lorduys Carlos , Matson Carballo Gustavo , Montes Cabarcas Gustavo , Herrera Banquez Karen M
Published: January 2021

Introducción: el dolor resultante de una fractura es de difícil control y requiere intervención analgésica así como la inmovilización de la extremidad. No existe en la literatura actual un estudio que compare la intensidad del dolor percibido por el paciente con los diferentes tipos de fracturas, tampoco que especifique qué tipo de manejo inicial se debe realizar para los pacientes con fracturas en extremidades según el tipo de fractura o su clasificación.Objetivo: determinar la efectividad del manejo analgésico inicial realizado a los pacientes con diagnóstico de fracturas en extremidades, y determinar si existe relación entre el dolor percibido por el paciente, el tipo de fractura y la respuesta analgésica.Materiales y métodos: estudio observacional, descriptivo y prospectivo para analizar a los pacientes con diagnóstico de fracturas en extremidades atendidos en el Hospital Universitario del Caribe entre los meses de mayo y junio del 2014, se excluyeron pacientes con más de 24 horas de evolución de la fractura, utilización previa a la atención de analgésicos o sustancias psicoactivas, alteración del estado de conciencia, antecedentes de patología neuromuscular o tratamiento analgésico crónico, se utilizó la clasificación AO-ASIF de las fracturas para determinar la localización y tipo de fractura, también se usó la escala verbal del dolor para valorar su intensidad al ingreso y unahora después de postanalgesia. La efectividad de la analgesia fue determinada tomando como efectiva una reducción en 50% o más del dolor al ingreso.Resultados: en el período de estudio se identificaron 88 pacientes, de los cuales 21 fueron excluidos por los criterios, en total se analizaron 67 pacientes. Se encontraron diferencias estadísticamente significativas en la percepción del dolor según la evaluación con la escala verbal del dolor en todos los grupos de observación, con medianas de dolor más altas al ingreso y disminución luego de una hora de aplicación del manejoanalgésico inicial; sin embargo, solo en el 54.7% de los pacientes se consideró efectiva la intervención. No se encontró diferencia estadísticamente significativa entre el dolor percibido al ingreso al comparar localización y segmento óseo fracturado, pero si hubodiferencia al comparar la intensidad del dolor según la complejidad del trazo de fractura, siendo mayor el grado de dolor en los trazos de alta complejidad.Conclusiones: los analgésicos utilizados para el manejo del dolor en la muestra de pacientes estudiados disminuyeron significativamente el dolor, sin embargo, no lograron una adecuada “efectividad” en el manejo inicial del dolor en los diferentes grupos de fracturas de extremidades. Rev.cienc. biomed.2015;6(2)290-297