bluuebunny/crossref_metadata_2025 huggingface dataset:
Vinhos em Portugal antes das regioes demarcadas
Authors: De Oliveira Aurélio
Published: September 2020

Com o presente estudo pretende-se verificar e circum-escrever no tempo as raízes das “modernas” delimitações das grandes regiões vinhateiras portuguesas, ordenadas a partir do Poder Central, indagando das razões históricas e económicas dessas mesmas delimitações (ora precoce, ora tardiamente ordenadas). A História dos Vinhos (ou de determinado vinho) é hoje uma componente importante na estratégia quer da sua venda, quer das regiões produtoras que também se tornaram destinos turísticos, só por si, escolhidos por uma fatia bem considerável de quem viaja. Os vinhos têm a sua história, e essa história (mais ou menos longa mais ou menos recuada) ajuda, sem dúvida, a sua venda a sua promoção e o seu consumo).
Atributos e imaginarios sociales elaborados por los turistas sobre los espacios rurales
Authors: Andrade Suárez María José , Caamaño Franco Iria
Published: September 2020

Está teniendo lugar desde hace ya más de una década una redefinición del papel de los espacios rurales, los cuales han pasado a diversificar sus usos, entre los que cabe destacar el turístico. A través de una aproximación teórica a la formación del imaginario turístico, se presenta en este trabajo otra manera de concebir la percepción de los espacios-destinos rurales, es decir, como práctica social de los propios turistas, como conjunto de imágenes mentales que cada uno se va creando y que genera un relato previo, una mirada o unas expectativas que el turista reproduce durante toda su experiencia vacacional. Se planteará, pues, el imaginario colectivo en el que se basa el turismo en el espacio rural, un territorio en crisis pero, sin embargo, revalorizado como espacio turístico, una vez creadas unas condiciones de oferta.
Retorno rural turístico en la provincia de Zaragoza. El modelo de ciudad podría estar favoreciendo el fenómeno
Authors: Gracia Bernal Amparo
Published: September 2020

El turismo de segunda residencia o el de retorno en el medio rural zaragozano, es especialmente relevante. Podría estar siendo ejercido en mayor medida, que en la mayoría del territorio nacional, si lo comparamos con el resto de turismo de interior y con territorios de similares características. La concentración urbana de la ciudad de Zaragoza y su singular relación con su Área Metropolitana, podría haber contribuido decisivamente a ello.
El turismo: nuevo escenario post-crisis
Authors: Puertas Cañaveral Inmaculada , Paniza Prados José Luis
Published: September 2020

Impulsado por la mejora de las condiciones económicas a escala global el turismo internacional se ha recuperado más rápido de lo esperado de los efectos de la crisis financiera mundial y de la recesión económica de finales de 2008. En un contexto de crisis internacional muestra unas cifras más optimistas que las de otros sectores productivos considerados tradicionalmente como motores de las economías occidentales. Esta situación descrita es precisamente la que motiva el presente artículo, que analiza la evolución y situación actual del turismo como sector productivo destacado de la sociedad española. En este sentido analizaremos en primer lugar la evolución en cifras del turismo internacional y nacional, antes de la crisis y durante la misma. En segundo término se ofrecen y analizan los datos macro económicos del turismo español, según las distintas visiones que el sector tiene sobre su futuro. En tercer lugar se reflexiona sobre la trascendencia real que el turismo tiene en las sociedades y economías occidentales. En este sentido se profundizará sobre la realidad socioeconómica del turismo nacional y los retos que deben ser afrontados en un futuro inmediato por parte de las empresas, la administración y los ciudadanos.
A Discrete Event Simulation Analysis of the Bullwhip Effect in a Multi-Product and Multi-Echelon Supply Chain of Fast Moving Consumer Goods
Authors: Ali Ramsha , Khalid Ruzelan , Qaiser Shahzad
Published: September 2020

Timely delivery is the major issue in Fast Moving Consumer Good (FMCG) since it depends on the lead time which is stochastic and long due to several reasons; e.g., delay in processing orders and transportation. Stochastic lead time can cause inventory inaccuracy where echelons have to keep high product stocks. Such performance inefficiency reflects the existence of the bullwhip effect (BWE), which is a common challenge in supply chain networks. Thus, this paper studies the impact of stochastic lead time on the BWE in a multi-product and multi-echelon supply chain of FMCG industries under two information-sharing strategies; i.e., decentralized and centralized. The impact was measured using a discrete event simulation approach, where a simulation model of a four-tier supply chain whose echelons adopt the same lead time distribution and continuous review inventory policy was developed and simulated. Different lead time cases under the information-sharing strategies were experimented and the BWE was measured using the standard deviation of demand ratios between echelons. The results show that the BWE cannot be eliminated but can be reduced under centralized information sharing. All the research analyses help the practitioners in FMCG industries get insight into the impact of sharing demand information on the performance of a supply chain when lead time is stochastic.
Pessoas Idosas em Cidades Rurais: Estilo de Vida e Vulnerabilidades às IST`S/Aids
Authors: Da Silva Josevânia , Leite Késia De Macedo Reinaldo Farias
Published: September 2020

O estudo teve por objetivo analisar as vulnerabilidades em saúde em relação ao estilo de vida e às práticas sexuais e preventivas de pessoas idosas residentes em cidades rurais do Estado da Paraíba, Brasil. Participaram 202 pessoas idosas com idades variando de 60 a 92 anos (M=68,57; DP=6,52), a maioria do sexo feminino (67,8%). Como instrumentos: Questionário sociodemográfico; Questionário Temático sobre vulnerabilidades em saúde; e o Questionário de Autorrelato (Self-Reporting Questionnaire, SRQ-20). Os dados foram analisados por meio de estatística descritiva e bivariada. As vulnerabilidades em saúde das pessoas idosas estiveram associadas às dimensões individual, social e programática. Na dimensão individual, destaca-se o uso de álcool e tabaco; práticas sexuais e preventivas caracterizada pela reduzida percepção de risco às Infecções Sexualmente Transmissíveis (IST`s) e baixo uso de preservativo. Na dimensão social, é possível citar a baixa renda e escolaridade; a vivência de estresse; a presença de Transtornos Mentais Comuns (TMC) e crenças sociais sobre Aids na velhice e sexualidade. Por último, na dimensão programática, destaca-se a baixa solicitação do teste para HIV/Aids e as poucas campanhas direcionadas a este público etário.
Educação Infantil: Um Estudo de Caso Sobre o Ofício Docente
Authors: Pinheiro Francisco Pablo Huascar Aragão , Costa Maria de Fátima Vasconcelos da , Reis Adriana Alcântara dos , Camelo Elysne , Holanda Andressa Fernandes , Vieria Emanuel Meireles , Aquino Cássio Adriano Braz de
Published: September 2020

A educação primária no Brasil, em seu nascedouro no século XIX, foi concebida como uma atividade feminina. Em relação às creches e pré-escolas estabeleceu-se uma associação entre a identidade do profissional de Educação Infantil e a maternidade. O objetivo da investigação ora apresentada é analisar como práticas de cuidado comuns à lida com crianças pequenas, associadas a um papel materno, repercutem sobre o ofício de professoras de Educação Infantil. A Clínica da Atividade foi tomada como referencial teórico. Realizou-se um estudo de caso a partir de dados provenientes de uma intervenção da qual participaram seis professoras que atuavam em um Centro de Educação Infantil. Os registros produzidos durante a intervenção foram submetidos à análise contrustritivo-interpretativa. Os resultados indicaram que as docentes de Educação Infantil, a partir da relação afetiva estabelecida com os alunos, parecem recuperar a autoridade que se deteriora com a violência que atinge a escola em outros níveis de ensino. Quanto à referência materna, esta se transforma em saber docente construído por um aprendizado cotidiano junto às crianças e incorpora-se à cultura profissional.
La inversión monetaria e intelectual en la formación docente: ¿necesidad o gasto?
Authors: Hoyos Hernández Mauricio
Published: September 2020

Esta ponencia, presentada a manera de artículo de reflexión, invita a todos los miembros de las comunidades educativas a reflexionar sobre la formación docente y lo que la constituye –la práctica y el saber pedagógicos–, y a repensar dicha formación como un factor incidente en la calidad de la educación en Colombia. Adicionalmente, plantea la necesidad de definir los parámetros con los cuales debe entenderse, analizarse y evaluarse la calidad de la educación, para que esta se traduzca en ese “anhelado ideal” que representa para el tipo de sociedad que se quiere construir. Por último, se presenta la contradicción entre lo que se les ofrece a los profesores en sus procesos formativos y lo que se les exige, seguida de una serie de digresiones acerca de la formación del profesorado y la inversión que se hace en ella.
Weighted L1-norm Logistic Regression for Gene Selection of Microarray Gene Expression Classification
Authors: Alharthi Aiedh Mrisi , Lee Muhammad Hisyam , Algamal Zakariya Yahya
Published: September 2020

The classification of cancer is a significant application of the DNA microarray data. Gene selection methods are ordinarily used handle the issue of high-dimensionality of microarray data to enable experts to diagnose and classify cancer with high accuracy. The penalized logistic regression (PLR) technique is usually used in the dimensionality reduction of the high-dimensional gene expression data sets to remove irrelevant and redundant predictors from the binary logistic regression model. One of the regularization techniques used to achieve this goal is the least absolute shrinkage and selection operator (Lasso). However, this technique has been criticized for being biased in the selection of genes. The adaptive Lasso was usually proposed by assigning an initial weight to each gene to address the selection bias. This paper is concerned with adapting PLR to improve its capability in classiï¬cation and gene selection, in the sense of accuracy, by introducing the one-dimensional weighted Mahalanobis distance (1-DWM) for each gene as an initial weight inside L1-norm. By experiments, this proposed method, denoted by adaptive penalized logistic regression (APLR), gives more accurate results compared with other famous methods in this regard.  The proposed method is applied to some real high-dimensional gene expression data sets in order to demonstrate its eï¬ƒciency in terms of classification accuracy and selection of gene. Therefore, the proposed method could be utilized in other studies implementing gene selection in the area of classification of high dimensional cancer data sets.
Physical Properties and Glycemic Index of Organic and Conventional Black Rice Grown in Bali Indonesia
Authors: Andriani Sagung Putri Risa , Hamid Mohamad Hasnul Naim Abd , Sahrom Mohamad Sazuan , M Yusof Mohd Syukri , Yamin Bohari M
Published: September 2020

Similar variety of black rice was grown by organic and conventional methods in Jatiluweh and Penatih districts of West Bali, respectively, separated by 46 km distance. Both rice are very similar having black pericarp and white rice inside. In this study we found that the degree of crystallinity of the two rice is about 24%. The Bragg parameters of the conventional rice are very close to Î±-amylose dehydrate, whereas the organic rice exists in polymorphic form. The crystallites in the endosperm area are dominated by polyhedral shape in contact with each other at the edges and formed a cyclic geometric environment. The size of the crystallites was between three and six microns. On the whole the crystallites are packed in rectangular blocks connected with one another radially from the centre towards the pericarp. XRF experiments show both rice contain P, K, S, Si, Mg, Cl, Al, Zn, Fe, Cu and Rb. However, ruthenium and manganese were detected in the organic rice. Both organic and conventional black rice possess low glycemic index of about 31±5.0 compared to 50±5.8 for commercial Basmati rice. Thermogravimetric investigation showed that the black rice was stable up to about 300°C and the gradual mass loss between 80 and 210°C is due to   water molecules and additional components presence in the rice. After the major decomposition at 310°C the mass gradually decreased and reached 18% residual at 600°C.
Using Multivariate Analysis to Study the Spread of Transitional Diseases in Iraq
Authors: Rasheed Aseel Abdul Razzak , Al-saffar Rawaa Salh , Rasheed Husam A.
Published: September 2020

Medical and technological development has achieved continuous successes during the last period. However, the statistics received from the World Health Organization (WHO) show the suffering that millions of people are subjected to daily as a result of their exposure to transitional diseases.  The most prevalent transitional disease in the Iraqi provinces and for all age groups for both genders is water pox disease, followed by cutaneous leishmaniosis and then mumps. The most affected governorate with transitional diseases is Baghdad Governorate (Rusafa Sector), followed by Dhi Qar Governorate and Baghdad (Al Karkh Sector). The most age-groups affected with transition diseases are the categories (5-9) years for males, followed by (5-9) years for females. The highest total contribution to the first axis was for cutaneous leishmaniasis, followed by mumps, then Basil dysentery, as for the absolute contribution in the first axis, it was Dhi Qar Governorate, followed by Baghdad. There are more than 14,000,000 people who die each year because of these diseases, and most infections are concentrated in developing countries, including Iraq. Hence, this research is vital to examine the extent of transitional diseases in Iraq for different age groups, both male and female gender. The use of the multivariate method, which is the correspondence analyses, it was found through the research that Baghdad (Rusafa Sector) has a high incidence of transitional diseases and the largest age group at risk of transitional diseases is (5-9) years form male gender.
Wavelet Estimation of Semi-parametric Regression Model
Authors: Tahir Ahmed Shaker Mohammed , Jassim Firas Monther
Published: September 2020

The semi-parametric regression model combines parametric and nonparametric regression. However, non-parametric estimation may provide flexible solutions to the problems suffers by the regression model, but the problem of dimensionality that this estimator suffers, which occurs due to the increasing number of explanatory variables, still remain, this, in turn, may reduce the accuracy of the estimation process. Estimate the non-parametric part of the semi-parametric models that can be studied using conventional non-parametric methods such as the Spline Smoothing and Kernel Smoothing. However, there are other non-parametric methods that can be used, therefore, in this paper, the semi-parametric regression model was estimated by employing the wavelet estimate for the soft threshold, according to the "Speckman" method, and then comparing it with the two methods, Nadaraya-Watson and Local Linear, through the implementation of simulation experiments that included different sample sizes and threshold values. The parametric part estimation of the partially linear model according to the least-squares method was not identical to those estimates using the Speckman method, that is because the least-squares method was not appropriate for the uneven nature of the number of weekly work hours. Simulation experiments have demonstrated the efficiency of the wavelet estimation method and its superiority over other methods. The above estimation methods were applied to real data related to the study of the production value for the public industrial sector in Iraq, and some factors affect it, such as the value of industrial supplies, the total wages of workers, and the number of workers.
E- Bayesian Estimation of System Reliability (Series, Parallel) and Failure Rate Functions with Kumaraswamy Distribution based on Type II Censoring Data
Authors: Hussain Wafaa J. , Akka Ahmed A. , Hamza Rehab K.
Published: September 2020

In this paper, the failure rate function and the shape parameter for the kumaraswamy distribution and reliability function of a system with a number (m) of independent compounds associated with a system (serial, parallel) were estimated, by relying on observational data of the second type, knowing that the survival time of the compounds are independent. Based on the findings the graphical predictor of the failure rate and parameter - and the reliability function of the serial and parallel system is smaller than the Standard Bayesian estimator (MLE) in simulation and real data. Thus, a decreasing in AMPE with an increase in the sample size n and an increase in the size of the failure sample r as the physical prediction capabilities have a high efficiency. The using of the Bayesian prediction method to estimate the reliability of different production systems for other failure distributions such as the Burr family distributions and various other failure distributions. Based on the output he results are reasonably consistent with simulation and real data. The E-Bayesian method was used for estimating with three primary distribution functions for the above parameters and comparing them with the standard Bayesian method with a squared loss function and the maximum likelihood method where simulation experiments were employed to compare the estimation results and the results showed the advantage of the E-Bayesian method in estimating through comparison statistics (MAPE).
A Fast AES Hardware Security Module for Internet of Things Applications
Authors: Lee Minyoung , Lim HyunSeo , Yang Yoojeong , Kim Sunhee
Published: September 2020

As the Internet of Things is used in various fields, Internet of Things security has become important. Since most Internet of Things devices is implemented as embedded systems, they provide a software-implemented encryption algorithm. Most embedded systems use relatively low-performance CPUs and the software processes data serially, making it difficult to process complex security algorithms in real-time. Therefore, it is necessary to have a stable encryption module with less impact on system performance. In this paper, we designed an AES hardware security module. Because it is implemented with dedicated hardware, it can process a strong encryption algorithm in real time without affecting the performance of the system. The proposed AES hardware module is designed using Verilog-HDL, tested in ModelSim and implemented in Altera FPGA Cycloneâ…£. The designed AES hardware adopts parallel processing technique and pipeline structure considering the computational complexity and processing order of the algorithm. As a result, it is faster than AES modules implemented in software. In addition, its latency was reduced to about 280 ns, which is about 16 % of the latency of the previous AES hardware module. Not only did the performance improve, but the number of logic elements and registers also decreased to 83.6% and 92.8%, respectively. The proposed AES hardware module is verified by applying it to a door lock system and is expected to be applied to various Internet of Things devices.
A Development of Embedded Anomaly Behavior Packet Detection System for IoT Environment using Machine Learning Techniques
Authors: Lim Youngchan , Choi Gicheol , Lee Kwangjae
Published: September 2020

Despite the growth of IoT technology and related markets, aspect of the IoT security in the IoT field is not handled correctly due to several factors such as indiscreet participation in the market, poor optimization for the various specifications. In this paper, an embedded anomaly packet detection system using machine learning technology for an IoT environment is proposed and evaluated. The suggesting system is composed of two main devices—the packet collection device and the packet analysis device. The packet collection device collects network packets from the IoT devices that are connected to the system. The packet analysis device detects anomalies from the packet data by using the machine learning model. Detected anomalies, which are mostly considered as intrusions such as new or bypassing HTTP attacks as well as existing attacks, are responded in real-time. For conformity assessment in a real-time environment, TPR, FPR, accuracy, and detection speed was measured, and the measured values of the target embedded board are 100%, 0.56%, 99.5, and 2.4 to 13.4 seconds, respectively. The results of TPR, FPR, and accuracy indicate the model itself has an excellent ability to discriminate between anomalies, but it is challenging to apply it to an embedded system in terms of detection speed. Future studies need to apply anomaly detection models that are more suitable for embedded devices and unique hardware accelerators for computing artificial neural networks.
A Study on the Perception and Improvement of Creative-Design Course by Level
Authors: Jo Jaechoon , Kim Sunhee , Lee Kwangjae , Park Hyunjoo , Jeong Seongdo
Published: September 2020

In the absence of concrete support plans for extra curriculum programs since the PRIME project has started, the College of Engineering has established regular courses to efficiently operate design programs. It links and operates creative-design curriculum by level: IT-engineering for freshman, basic creative design for sophomore, major creative design for junior, and integrated capstone design for senior. This study aims to find efficient operation and improvement plan for creative-design courses through the questionnaire survey and focused group interview (FGI) on the satisfaction of creative-design courses and the composition of the curriculum for students taking project-oriented creative-design courses. To this end, a survey and group interviews were conducted for 176 students taking creative-design courses, and the survey results and group interview results were analysed. As a result of the analysis, the absolute evaluation method was preferred, and a curriculum that could be done consequently rather than a short-term project. Satisfaction with the creative-design courses was higher in the upper grades than in the lower grades. In addition, when satisfaction for the creative-design courses is high, it showed positive recognition of the satisfaction for the curriculum of creative-design courses. In this paper, I propose four suggestions for efficient operation and improvement for creative-design courses; different goal-setting of creative-design courses at each level, an appropriate form of feedback, the fairness of team setting and evaluation methods, and the grade linkage for creative-design courses. Keywords— Engineering Curriculum; PBL; Higher Education; FGI; Survey.
Efficient Mechanism for Data Gathering and Transmission in Multihop Wireless Sensor Networks
Authors: Jeon Junheon
Published: September 2020

In this paper, we propose an efficient mechanism for data gathering and transmission in multi-hop wireless sensor networks.  In wireless sensor networks, data packets are transferred to the sink node. So many packets are gathered around the sink, resulting in significant delay and collision. To solve this problem, the proposed mechanism used a two-way method; one method works between 1-hop nodes from the sink node and the sink node. In this method, the data packet is transmitted in predefined time to reduce collision and delay. The other method works between nodes except the sink node. In this method, receiver nodes use BRN (backup receiver node) mechanism to reduce energy consumption, thereby increasing the lifetime of the entire networks. In the BRN mechanism, a receiver node that has received a data packet once does not participate in receiving data packets twice in succession by changing its status value. The reason that the receiver node participating in the data packet transmission once does not participate in receiving the second consecutive data packet is to solve the hot spot problem in which two receiver nodes alternately receive the data packet. Also, we propose an enhanced method for data gathering. The proposed method is used for the intensity and direction of the signal in order to increase the reliability of the duplicate data packet. Our simulation and numerical analysis results show that our mechanism outperforms X-MAC in terms of transmission delay and energy consumption.
Sensitivity Analysis of Rainfall-Runoff Model in Malino Sub-Watershed
Authors: Arlimasita A , Lasminto U
Published: September 2020

Overtime, science has been developing and trying to use modelling system in the management of hydrology. In this paper, we present a sensitivity analysis for the HEC-HMS rainfall-runoff model. Sensitivity analysis is used to determine the parameter which most influences the result of the model. The main objective of this research is to investigate the sensitivity of parameter in model and to analyze the influence of the graph types used for unit hydrograph. In addition, we also compare the result of lumped and semi-distributed models based on stream order to analyse a common watershed issue. This study will make a model of rainfall-runoff using a sub-catchment distribution method based on stream order. ArcGIS and HEC-HMS were used as softwares to process data. The data needed in this study come from secondary data sourced from various sources. The data that will be processed first is DEM (Digital Elevation Model). DEM used in this study was sourced from the Geospatial Information Agency or commonly referred to as DEMNAS (The National DEM). ArcGIS will process geospatial data in the form of DEM which data results can be used directly to make model in HEC-HMS. Then, the results of the rainfall-runoff model will be calibrated using observed unit hydrograph.  From the result of sensitivity analysis, it was concluded that impervious is the most sensitive parameter. Moreover, this paper also can be used as guidelines for use in rainfall-runoff modelling on HEC-HMS.
Kinetic Study of Pyrolysis of Ulin Wood Residue using Thermogravimetric Analysis
Authors: Widiyannita Aitia Mulyawati , Pradana Yano Surya , Cahyono Rochim Bakti , Sutijan - , Akiyama Tomohiro , Budiman Arief
Published: September 2020

Biomass as a renewable and sustainable energy source is expected to solve the energy crisis problem. Ulin wood residues as a biomass source could be converted into bioenergy utilizing the pyrolysis process since its primary component is a hydrocarbon. Pyrolysis process has received many interests for bioenergy production from biomass, elevating the importance of the kinetic study of pyrolysis. The kinetic study of pyrolysis is related to the beginning stage behavior of gasification and combustion process. The kinetic mechanism of pyrolysis is analyzed using Thermogravimetry Analysis (TGA), by estimating the mass decomposition at solid-state that shows TG and DTG curve. The TG and DTG curves were analyzed to see the effect of heating rate on decomposition temperature. This experiment was performed by heating 10 mg of Ulin wood sawdust from ambient temperature to 1473 K utilizing 100 mL/min of nitrogen (N2) gas as carrier gas at various heating rate: 5, 10, 20, and 50 K/min. The kinetic parameters were determined by applying the iso-conversional methods, the Kissinger-Akahira-Sunose (KAS) and Flynn-Wall-Ozawa (FWO) methods, and then compared the results with the non iso-conversional method, using Kissinger method. The average value of activation energy calculated using the KAS and FWO methods are 253.5514 and 245.2512 kJ/mol, with the average value of constant coefficient square (R2) of 0.9848 and 0.9859, respectively, whereas the calculated activation energy and R2 using the Kissinger method are 237.4478 kJ/mol and 0.8520, respectively.
Quality of Enriched Liquid Organic Fertilizer from Dairy Cattle Wastes on Closed Agriculture System
Authors: Muktamar Zainal , Fahrurrozi Fahrurrozi , Sudjatmiko Sigit , Chozin Mohammad , Setyowati Nanik
Published: September 2020

Liquid organic fertilizer (LOF) supplementation for solid organic fertilizer can accelerate the availability of plant nutrients. However, the nutrient content of LOF is highly dependent on its sources. The objective of the experiment was to examine the nutrient content of enriched liquid organic fertilizer from dairy cattle wastes. The experiment was conducted at Closed Agriculture Production System Research Station located in Air Duku Village, Bengkulu, Indonesia, at 1054 m above sea level. The experiment was laid out in a Completely Randomized Design with ten treatments and three replications. The treatments consisted of LOF from dairy cattle wastes enriched with Tithonia diversifolia, Ageratum conyzoides, Leucaena leucocephala, and Gliricidia sepium, their combination with phosphate rock, the combination of Tithonia diversifolia, and Ageratum conyzoides, and control. The LOF solution was anaerobically incubated for six weeks. The experiment indicated that during the incubation, solution pH declined for the first two weeks, gradually increased up to week 6. At the end of incubation, control exhibited the highest pH as compared to those with enrichment, indicating that decomposition of green biomass released a considerable amount of hydrogen. Enrichment of LOF considerably increased the contents of C, N, P, K, Ca, and Mg. The addition of phosphate rock to biomasses did not contribute a prominent increase in phosphorus content, possibly due to its low solubility at high pH. LOF enrichment with Tithonia diversifolia and Ageratum conyzoides had the highest N, P, and Mg contents. Therefore, the enrichment is the most potential for LOF production in closed agriculture system.
New Constants of Fracture Angle on Quartz Sandstone
Authors: Supandi - , Zakaria Zufialdi , Sukiyah Emi , Sudradjat Adjat
Published: September 2020

Calculation of fracture angle based on the Mohr-Coulomb concept has been generalized to all lithologies, whereas each lithology has a heterogeneous characteristic that is not the same as one another. This research aims to determine constants that calculating the fracture angle based on the Mohr-Coulomb concept for quartz sandstone. The fracture angle based on the results of calculations using mathematical formulas and measurement results in the laboratory is compared. The empirical result for analysis was obtained from direct measurement under the uniaxial test with a single fracture and compared them based on mathematical calculation. Laboratory testing was applied to 50 mm-sized core samples of sandstone. The value of the fracture angle was obtained after taking uniaxial testing with fracture angle measurement against the plane directly. The determination of the friction angle was performed using an undrained-unconsolidated triaxial method. The determination of the correlation constants was conducted by plotting the scatter graph between the friction angle and fracture angle. The correlation shows that the fracture angle has a very strong relationship with rock characteristics. The constants based on the laboratory test are higher than that of the Mohr-Coulomb concept. The increasing constants depend on several factors: mineralogy, cohesion, internal friction angle, density, void ratio, and Poisson’s ratio. The constants of the fracture angle for the quartz sandstone should be changed from 45 to 53.705. This result may be proof that generalizing the formula of fracture angle to all lithologies may not be applied due to the differences of their characteristics in defining the fracture angle.
Detecting Lesion Characteristics of Diabetic Retinopathy Using Machine Learning and Computer Vision
Authors: Bustamam Alhadi , Sarwinda Devvi , Abdillah Bariqi , Kaloka Tesdiq Prigel
Published: September 2020

One indicator of the severity of diabetic retinopathy is the existence of lesion characteristics in the eyes such as microaneurysm, hemorrhages, exudates, and neovascularization. Without proper early medical attention, this lesion could lead to blindness. Considering its importance, a system that could detect such lesions will be beneficial. This paper investigates the lesion characteristics of diabetic retinopathy from fundus images such as microaneurysm (redsmalldots), exudates, hemorrhages, and neovascularization. In this study, we present three of feature extraction methods, i.e., Local Binary Pattern (LBP), Gray Level Co-Occurrence Matrix (GLCM) and Segmentation Fractal Texture Analysis (SFTA). K-Nearest Neighbor (KNN) and Support Vector Machine (SVM) chosen as classifiers for classifying five classes (redsmalldots, hemorrhages, hard exudates, soft exudates, and neovascularization). The data used in this research obtained from DiaretDB0 database. The experimental results show that our proposed method can detect the lesion characteristics of diabetic retinopathy with higher accuracy of 86,84% and 96% for SVM and KNN, respectively.
A Comparative investigation on Viscosity Reduction of Heavy Crude Oil Using Organic Solvents
Authors: Azeez Rana Abbas , AL-Zuhairi Firas K. , Al-Adili Aqeel
Published: September 2020

The transport of heavy crude oil from the head-well to the refinery plants is an attractive factor as its production is currently increasing around the world. Though the higher viscosity increases trouble in the piping transportation and production from the reservoir, for these reasons, this study focuses on the dilution method to reduce its viscosity using toluene, dimethyl ketone (DMK) and a mixture of (50/50 vol. %) toluene/dimethyl ketone as a dilutes solvents with different weight fraction (0, 5, 10 and 15 wt. %) at 298.15 K. The heavy oil used collected from Amara oil field, south of Iraq. The viscosity was measured by Brookfield viscometer over a range of shear rates (0 - 42s-1). On another way to understand the effect of temperature, the better result for weight fraction of solvents in viscosity reduction of heavy oil was investigated under different temperatures (298.15, 308.15 and 318.15 K). The obtained results showed dilution of heavy oil samples with toluene, DMK and a mixture of (50/50 vol. %) toluene and DMK is an effective method for reducing the viscosity. Moreover, the temperature has a significant effect on the degree of viscosity reduction in the presence of the diluents. However, the higher DVR was noticed about 87.17 % at 15 wt.% of the mixture (50/50 vol. %) toluene + DMK at 318.15 K and shear rate 42 s-1. Tthe relevant results attribute to an aromatic characteristic of toluene which allows interferes in the asphaltene aggregation.
O dialogismo: sequencialidade, posicionamento, pluralidade e historicidade na análise da prática educativa
Authors: Galvão Janaína Aguiar Mendes
Published: September 2020

Partindo das ideias seminais de Bakhtin e Volochinov, neste artigo descrevemos a construção de uma postura dialógica para pesquisar práticas educativas, como também a possibilidade de criar um modelo pedagógico que privilegie quatro aspectos chave que fazem parte do dialogismo: sequencialidade, posicionamento, pluralidade e historicidade. Sequencialidade: o significado é produto da negociação sequencial do que projeta cada turno de fala em interação. Posicionamento: toda participação social constrói uma posição própria e em relação com a dos demais participantes de uma conversa. Pluralidade: o diálogo envolve reconhecer outras lógicas, outras vozes. Historicidade: o currículo escolar invoca uma história de desenvolvimento de uma conversa disciplinar. Para cada caso, explicamos, com exemplos, a maneira pela qual os conceitos descritos são utilizados para pesquisa e análise das práticas educativas. Finalmente, argumentamos que é necessário considerar estes quatro aspectos na construção de qualquer modelo pedagógico que invoque o dialogismo como fundamento epistemológico de sua proposta.
Metaphors of the prospective teachers regarding the concept of music
Authors: Yuksel Gozde
Published: September 2020

How teachers perceive concepts and facts is very important because teaching is a profession capable of shaping the cognitive, affective and behavioural behaviours of society through education. This research aims to determine the perceptions of prospective teachers studying at teacher education programmes of different fields regarding the concept of music. The main purpose here is to determine how music, which has an important place in human life with its individual, social, cultural, economic and educational functions, is perceived by prospective teachers. This research was conducted according to the descriptive survey model. The participants of the research consisted of three categories and a total of 186 people: prospective teachers attending departments whose curriculums do not include music lessons (PT, n = 57), prospective teachers attending departments whose curriculums include music lessons (preschool teaching, classroom teaching) (PTM, n = 66) and prospective music teachers (PMT, n = 63). The data were obtained through a form asking the participants to complete the statement â€˜Music is like ... because ...â€™. The analysis of the produced metaphors was carried out in five steps: (1) coding and extracting, (2) collecting sample metaphors, (3) developing categories, (4) ensuring validity and reliability and (5) transferring data to Statistical Package for the Social Sciences for quantitative data analysis. As a result of the research, based on 83 different metaphors produced by prospective teachers, these metaphors were divided into seven categories. When the distribution of perceptual categories by participant type was examined, it was observed that the perceptions of the participants changed according to whether they took music lessons and how often they took them.

Keywords: Metaphor, music, perception of music, teacher education.
Students’ technological awareness at the College of Education, Qatar University
Authors: Hendawi Manal , Nosair Mohammad Rajab
Published: September 2020

"Technology at the level of university education has become an important basis for designing educational curricula, and it is considered one of the most essential elements of teaching in our time, especially creative teaching based on employing critical thinking skills and problem-solving method. The use of technological applications and their use in managing the educational process and organizing it within institutions Is considered one of the most critical foundations of quality standards. Still, instead, it is a component of the quality of the educational process. This study seeks to confirm the extent of the technological awareness of students at the College of Education at Qatar University before going on to training in the field by adopting a descriptive method to measure the students' technological awareness levels .The study was applied to all students of the College of Education at Qatar University distributed on eight specializations. The number of students in the college for the academic year 2020/2020, in which the questionnaire was, applied 2063, 17.9 % responded to the study instrument, equivalent to 371 students .The results of the study showed that the general level of both the emotional and cognitive fields of technological awareness is high, and the level of awareness of the skill field was average. The results revealed that there are no differences in all dimensions of Technology about sex, specialization, or nationality. While the study found technological awareness increases with the number of years of study and the level of academic performance. A set of recommendations was proposed in light of the study results, Such as the College of Education holding workshops and seminars specializing in Technology, adding a course in educational technology for students in the secondary education program in particular, and providing courses in Technology first-year students.
Keywords: Technology; teaching; learning; awareness; Qatari students
Cidades educadoras e educação em humanidades
Authors: Ketzer Patricia , Scheffer Ana Paula
Published: September 2020

O presente trabalho tem por objetivo investigar como o movimento Cidades Educadoras pode contribuir para a educação em humanidades, a qual vem sendo, a cada reforma educacional, mais escamoteada. Pretende-se demonstrar a possibilidade da educação em humanidades nos espaços não formais e informais de ensino, como é o caso da cidade. Trata-se de uma pesquisa bibliográfica na qual serão abordados, na primeira parte o conceito de cidade e democracia. Posteriormente, apresenta-se uma análise da importância da educação em humanidades no contexto democrático. E, por fim, identifica-se as contribuições do movimento Cidades Educadoras para a educação em humanidades, concluindo.
Do espanto ao sublime
Authors: Machado Felipe Tuller Moreira
Published: September 2020

Este artigo tem por objetivo propor um diálogo entre o conceito de “thaumázein”, partindo do diálogo Teeteto de Platão, e a noção de “sublime” de Friedrich Schiller, aproximando-os a partir da noção de “páthos”. A função deste debate será pensar as associações entre os termos e sua função dentro da iniciação à filosofia. Em um primeiro momento, será discutido o contexto no qual “thaumázein” aparece em Platão para, em seguida, apresentar brevemente a noção de “sublime” de Schiller a modo de ampliá-lo e localizar sua função dentro de uma perspectiva educacional do filósofo.
Quando a justiça entra na escola
Authors: Pereira Ana Carolina Reis
Published: September 2020

Este artigo procura analisar a introdução da justiça restaurativa no contexto educacional, na cidade de Campinas-SP. Desenvolvida sob o enfoque qualitativo, foi realizada com base em entrevistas analisadas a partir do referencial metodológico da história oral de vida. As estatísticas no Estado de São Paulo apontam um crescimento dos registros de violência nas unidades escolares. O objetivo de investigar a justiça restaurativa deve-se ao fato de que esta proposta tem sido executada tendo em vista o arrefecimento da violência e das situações de conflito nas escolas. Nossa expectativa é compreender o que mobiliza o professor a introduzir a justiça restaurativa em sua prática pedagógica.
Educação emancipatória e atualidade do pensamento ético-político de Paulo Freire
Authors: Polli José Renato
Published: September 2020

Este trabalho tem como propósito contribuir para a desmistificação das atribuições pejorativas sugeridas por diferentes atores do campo não progressista, sustentadas em desinformação e falta de referenciais sólidos de análise, sobre o sentido emancipatório da obra de Paulo Freire e suas incidências sobre a educação em direitos humanos. Também tem o objetivo de analisar as sugestões teóricas de Freire como caminhos para a construção de mecanismos de consolidação de uma radicalidade democrática no seio da sociedade brasileira. Setores da sociedade sugerem que Paulo Freire seria um autor de vertente marxista, postulador de doutrinas ortodoxas “esquerdistas” nos processos de educação formal, justificando propostas cujo teor têm como objetivo a contraposição a esta suposta doutrinação, como o projeto denominado “Escola sem partido”. Buscamos demonstrar que Paulo Freire tem como preocupação primeira o de caráter ontológico nos processos educativos, a formação humana,  indicando meios educacionais para o aprimoramento da reflexão e da ação intimamente relacionadas, que levem ao aprimoramento do ser humano e que, no bojo desta preocupação, existe um objetivo maior, emancipatório, comportando todas as ordens deste aprimoramento: a promoção da justiça, o caráter laico e universal da escola pública, o direito à livre manifestação de ideias, o respeito às realidades culturais de cada estudante, a construção coletiva do conhecimento e a defesa dos direitos humanos.
Paulo Freire e os direitos humanos
Authors: Gerbasi Luciana Barbosa
Published: September 2020

Com base na pesquisa sobre a presença de Paulo Freire na produção da Pós-graduação Brasileira este artigo tem o objetivo de destacar as categorias antropológico-filosóficas que embasam a concepção de Educação do autor e que são reveladas nessas produções. Essas concepções estão presentes em forma direta (palavras-chave) em 233 dissertações e 138 teses localizadas em 32 universidades onde foram defendidas as teses que pesquisaram sobre esse autor. Os resultados revelam que as categorias filosóficas de “ser no mundo”, “ser com outros”, “ser inconcluso” e antropológicas de “realidade concreta”, “diálogo” e “liberdade/libertação” tem relações diretas com a problemática dos direitos humanos. Essas categorias fundamentam a base conceitual para a compreensão da educação como direito humano.
“CREIO NO ESPÍRITO SANTO, SENHOR QUE DÁ A VIDA”
Authors: Adão Francys Silvestrini , De Mori Geraldo Luiz
Published: September 2020

Esta foi a oração com que o Papa Francisco concluiu sua homilia na solenidade de Pentecostes, no dia 21 de maio deste ano. Graças à sua profunda inspiração evangélica, esta prece articula sete dimensões que devem perpassar a reflexão teológica sobre o Espírito de Santidade (...)
L’ESPRIT SAINT SELON LES PERES DE L’ÉGLISE: DE LA THEOLOGIE PRENICEENNE AUX PREMIERES CONTROVERSES SUR LE FILIOQUE (2E – 8E SIECLES)
Authors: Fédou Michel
Published: September 2020

L’article montre les développements de la pneumatologie à l’époque patristique. Ces développements ont été déjà importants aux 2e et 3e siècles. Mais la réflexion s’est surtout intensifiée au 4e siècle, dans le cadre des controverses avec ceux qui niaient la divinité du Saint Esprit. Athanase et les Pères cappadociens ont ici apporté une contribution majeure, et les formulations du concile de Cons­tantinople en sont le fruit. Plus tard encore, la doctrine sur l’Esprit a donné lieu à de nouvelles précisions, tant du côté latin (surtout avec Augustin) que du côté grec. Les divergences sur le « Filioque » depuis le Moyen Age devraient inciter à recueillir les témoignages des Pères qui, malgré des expressions parfois différentes, partageaient fondamentalement la même foi en l’Esprit.
THE EFFECT OF COBALT CONTENT ON MAGNETIC PROPERTIES OF CoFe ALLOYS
Authors: Nursiyanto Widia , Rohman L. , Alfatun N. M. , Purwandari E.
Published: September 2020

Hard Disk Drive (HDD) as a data storage device when operated with high temperatures (around 66oC), its function will be constrained. The CoFe alloys have a large coercivity field and can be patterned in very small sizes that are suitable for HDD devices. In this study, Co1-x Fex cube alloy was used (x = 0.25; 0.30; 0.50; 0.75). Samples were treated with temperature changes to get the Curie temperature. The coercivity field value is obtained by giving the external field and temperature below Curie temperature and also above Curie temperature to the samples. The VAMPIRE software is a micromagnetic simulation program based on atomistic models. The results showed that Curie’s temperature decreased when Co content increased. The composition of Co0.25 Fe0.75 has the highest Curie temperature that is equal to 1075 K. The temperature Curie is not affected by the size of the cube. When the sample is given a temperature rise below the Curie temperature, the value of the coercivity field decreases.  The value of the coercivity field is very difficult to determine when the temperature used is above the Curie temperature. The percentage of composition does not affect the coercivity field value. Therefore, cube-shaped CoFe material is very suitable for use as a material data storage device operated at temperatures below the Curie.