bluuebunny/crossref_metadata_2025 huggingface dataset:
Numerical Research of Fracture Toughness of Aged Ferritic-Martensitic Steel
Authors: Janulionis Remigijus , Dundulis Gintautas , Grybėnas Albertas
Published: December 2020

Generally, material properties such as the modulus of elasticity, yield strength or fracture toughness are determined by conducting an experiment. Sometimes experimental determination cannot be done due to specific experimental conditions, lack of testing material and so on. Also, experiments are time consuming and costly. Therefore, there arises the need for alternative determination methods. A numerical method for the fracture toughness determination of steel P91 is suggested in this paper. For this purpose, the universal finite element software ABAQUS was used. The numerical simulation of the C(T) specimen tension test was carried out using non-linear simulation for a conditional load PQ determination, and linear simulation for fracture toughness value KQ determination. The suggested method is validated by comparing numerical and experimental tests results. The secondary aim of the paper is the evaluation of the ageing effect on the fracture toughness of steel P91. Thermal ageing of the steel was carried out in an electric furnace at 650 °C up to 11,000 h. As the numerical results had a good coincidence with experimental data at room temperature, the prediction of fracture toughness at elevated temperature, i.e., 550 °C, using numerical method was carried out.
Adsorption as a Process for Produced Water Treatment: A Review
Authors: Yousef Roghayeh , Qiblawey Hazim , El-Naas Muftah H.
Published: December 2020

Produced water (PW) is a by-product of oil and gas operations, and its production is foreseen to increase in the upcoming years. Such an increase is justified by various entities through their projection of the expected increase in the demand of oil and gas. The treatment of produced water is a significantly growing challenge for the oil and gas industry that requires serious attention. The first part of this review will present the underlying issue of produced water and relevant practices. With adsorption being defined as the least expensive treatment method, the second part will introduce general adsorption principals. The third part will describe the recent applications of adsorption for the treatment of PW with more focus of categorizing the adsorbents as natural and non-natural adsorbents. The main aim of this review is to shed light on the recent research related to PW treatment using adsorption. This is performed to highlight the shortcomings in PW adsorption research and recommend research pathways that can help in developing the field further.
3D Fast Object Detection Based on Discriminant Images and Dynamic Distance Threshold Clustering
Authors: Chen Baifan , Chen Hong , Yuan Dian , Yu Lingli
Published: December 2020

The object detection algorithm based on vehicle-mounted lidar is a key component of the perception system on autonomous vehicles. It can provide high-precision and highly robust obstacle information for the safe driving of autonomous vehicles. However, most algorithms are often based on a large amount of point cloud data, which makes real-time detection difficult. To solve this problem, this paper proposes a 3D fast object detection method based on three main steps: First, the ground segmentation by discriminant image (GSDI) method is used to convert point cloud data into discriminant images for ground points segmentation, which avoids the direct computing of the point cloud data and improves the efficiency of ground points segmentation. Second, the image detector is used to generate the region of interest of the three-dimensional object, which effectively narrows the search range. Finally, the dynamic distance threshold clustering (DDTC) method is designed for different density of the point cloud data, which improves the detection effect of long-distance objects and avoids the over-segmentation phenomenon generated by the traditional algorithm. Experiments have showed that this algorithm can meet the real-time requirements of autonomous driving while maintaining high accuracy.
Automatic Transportation Mode Recognition on Smartphone Data Based on Deep Neural Networks
Authors: Delli Priscoli Francesco , Giuseppi Alessandro , Lisi Federico
Published: December 2020

In the last few years, with the exponential diffusion of smartphones, services for turn-by-turn navigation have seen a surge in popularity. Current solutions available in the market allow the user to select via an interface the desired transportation mode, for which an optimal route is then computed. Automatically recognizing the transportation system that the user is travelling by allows to dynamically control, and consequently update, the route proposed to the user. Such a dynamic approach is an enabling technology for multi-modal transportation planners, in which the optimal path and its associated transportation solutions are updated in real-time based on data coming from (i) distributed sensors (e.g., smart traffic lights, road congestion sensors, etc.); (ii) service providers (e.g., car-sharing availability, bus waiting time, etc.); and (iii) the user’s own device, in compliance with the development of smart cities envisaged by the 5G architecture. In this paper, we present a series of Machine Learning approaches for real-time Transportation Mode Recognition and we report their performance difference in our field tests. Several Machine Learning-based classifiers, including Deep Neural Networks, built on both statistical feature extraction and raw data analysis are presented and compared in this paper; the result analysis also highlights which features are proven to be the most informative ones for the classification.
Detection of Aircraft Touchdown Using Longitudinal Acceleration and Continuous Wavelet Transformation
Authors: Bakunowicz Jerzy , Rzucidło Paweł
Published: December 2020

The paper presents a methodology enabling the detection of aircraft touchdowns based on data obtained from accelerometers attached to the structural parts of the airframe in the cockpit or passenger compartment. Precise determination of the moment and place of touchdown of the main landing gear is challenging when analysing parameters such as height, flight speed and rate of descent. During the tests of the I-31T aircraft, it turned out that vibrations of the aircraft structure caused by the contact of the front and main landing gear with the ground have a repetitive character. In particular, this applies to longitudinal acceleration. The use of continuous wavelet analysis (CWT) allowed finding unique periodic features of the landing phenomenon that distinguish it from other forms of vibration occurring in individual flight phases. Ground and flight observations of experimental aeroplane MP-02 Czajka verified the proposed method of virtual touchdown detection. The results presented in this paper justify that this method may find broader application, especially for the light aircraft class.
Forecast Model Update Based on a Real-Time Data Processing Lambda Architecture for Estimating Partial Discharges in Hydrogenerator
Authors: Pereira Fabio Henrique , Bezerra Francisco Elânio , Oliva Diego , Souza Gilberto Francisco Martha de , Chabu Ivan Eduardo , Santos Josemir Coelho , Junior Shigueru Nagao , Nabeta Silvio Ikuyo
Published: December 2020

The prediction of partial discharges in hydrogenerators depends on data collected by sensors and prediction models based on artificial intelligence. However, forecasting models are trained with a set of historical data that is not automatically updated due to the high cost to collect sensors’ data and insufficient real-time data analysis. This article proposes a method to update the forecasting model, aiming to improve its accuracy. The method is based on a distributed data platform with the lambda architecture, which combines real-time and batch processing techniques. The results show that the proposed system enables real-time updates to be made to the forecasting model, allowing partial discharge forecasts to be improved with each update with increasing accuracy.
InstanceEasyTL: An Improved Transfer-Learning Method for EEG-Based Cross-Subject Fatigue Detection
Authors: Zeng Hong , Zhang Jiaming , Zakaria Wael , Babiloni Fabio , Gianluca Borghini , Li Xiufeng , Kong Wanzeng
Published: December 2020

Electroencephalogram (EEG) is an effective indicator for the detection of driver fatigue. Due to the significant differences in EEG signals across subjects, and difficulty in collecting sufficient EEG samples for analysis during driving, detecting fatigue across subjects through using EEG signals remains a challenge. EasyTL is a kind of transfer-learning model, which has demonstrated better performance in the field of image recognition, but not yet been applied in cross-subject EEG-based applications. In this paper, we propose an improved EasyTL-based classifier, the InstanceEasyTL, to perform EEG-based analysis for cross-subject fatigue mental-state detection. Experimental results show that InstanceEasyTL not only requires less EEG data, but also obtains better performance in accuracy and robustness than EasyTL, as well as existing machine-learning models such as Support Vector Machine (SVM), Transfer Component Analysis (TCA), Geodesic Flow Kernel (GFK), and Domain-adversarial Neural Networks (DANN), etc.
Advancements in Methods and Camera-Based Sensors for the Quantification of Respiration
Authors: Rehouma Haythem , Noumeir Rita , Essouri Sandrine , Jouvet Philippe
Published: December 2020

Assessment of respiratory function allows early detection of potential disorders in the respiratory system and provides useful information for medical management. There is a wide range of applications for breathing assessment, from measurement systems in a clinical environment to applications involving athletes. Many studies on pulmonary function testing systems and breath monitoring have been conducted over the past few decades, and their results have the potential to broadly impact clinical practice. However, most of these works require physical contact with the patient to produce accurate and reliable measures of the respiratory function. There is still a significant shortcoming of non-contact measuring systems in their ability to fit into the clinical environment. The purpose of this paper is to provide a review of the current advances and systems in respiratory function assessment, particularly camera-based systems. A classification of the applicable research works is presented according to their techniques and recorded/quantified respiration parameters. In addition, the current solutions are discussed with regards to their direct applicability in different settings, such as clinical or home settings, highlighting their specific strengths and limitations in the different environments.
High-Capacity Image Steganography Based on Improved Xception
Authors: Duan Xintao , Gou Mengxiao , Liu Nao , Wang Wenxin , Qin Chuan
Published: December 2020

The traditional cover modification steganography method only has low steganography ability. We propose a steganography method based on the convolutional neural network architecture (Xception) of deep separable convolutional layers in order to solve this problem. The Xception architecture is used for image steganography for the first time, which not only increases the width of the network, but also improves the adaptability of network expansion, and adds different receiving fields to carry out multi-scale information in it. By introducing jump connections, we solved the problems of gradient dissipation and gradient descent in the Xception architecture. After cascading the secret image and the mask image, high-quality images can be reconstructed through the network, which greatly improves the speed of steganography. When hiding, only the secret image and the cover image are cascaded, and then the secret image can be embedded in the cover image through the hidden network in order to obtain the secret image. After extraction, the secret image can be reconstructed by bypassing the secret image through the extraction network. The results show that the results that are obtained by our model have high peak signal-to-noise ratio (PSNR) and structural similarity (SSIM), and the average high load capacity is 23.96 bpp (bit per pixel), thus realizing large-capacity image steganography surgery.
Karakteristik Fisik dan Kimia Beras Indigenous dari Lahan Pasang Surut di Kalimantan Tengah
Authors: Kamsiati Elmi
Published: December 2020

AbstrakBeras merupakan bahan pangan pokok penting bagi penduduk dunia. Lahan pasang surut memiliki potensi untuk menjadi daerah penghasil beras. Varietas padi/beras yang tumbuh dan beradaptasi dengan baik pada lahan pasang surut dapat dikembangkan pada program pemuliaan padi. Penelitian ini bertujuan untuk mengetahui karakteristik beras indigenous yang berasal dari lahan pasang surut di Kalimantan Tengah, terkait dengan sifat fisik dan kimianya. Ada delapan varietas beras yang dikarakterisasi yaitu Karang Dukuh, Siam Jurut, Siam Pandak, Siam Palun, Siam Palas, Bayar Pahit, Rantul dan Siam Unus. Sifat fisik yang dianalisis adalah dimensi, kekerasan dan derajat putih. Sedangkan sifat kimia yang diamati adalah kadar amilosa, lemak dan kadar air. Hasil penelitian menunjukkan bahwa varietas Siam Palas, Siam Pandak, Bayar Pahit, Rantul merupakan beras dengan bentuk medium, sedangkan empat lainnya merupakan beras dengan bentuk ramping (slender). Nilai derajat putih beras berkisar antara 45.3-50.9 yang setara dengan derajat sosoh 83-93%. Beras tersebut memiliki kadar amilosa berkisar antara 26.23-29.17%, yang termasuk beras dengan kadar amilosa tinggi. Sedangkan kadar lemaknya cukup rendah, berkisar antara 0,32-0,62%. Dari penelitian ini diketahui bahwa beras dari lahan pasang surut memiliki kadar amilosa yang tinggi yang memiliki potensi indeks glikemik yang rendah.  AbstractRice is one of important staple food of world’s population. Tidal swamp land have potential resouces to be rice production area. Rice varieties that grows and well adapted in tidal swamp land can be developed in breeding program. The aims of this study was to investigate the physical and chemical characteristics of indigenous rice from tidal swamp land in Central Kalimantan. Paddy got from paddy breeder in Central Kalimantan. There are eight indigenous varieties of rice which is characterized namely Siam Palas, Siam Jurut, Siam Pandak, Siam Palun, Bayar Pahit, Rantul, Karang Dukuh and Siam Unus. The physical properties that observed were dimensions, hardness and whiteness. Amylose, fat and moisture content were the chemical properties that analyses. The result showed that based on shape, Siam Palas, Siam Pandak, Bayar Pahit, Rantul varieties has moderate shape, and the others has slender shape. The whiteness degree of rice ranged between 45.3-50.9 which is equivalent to 83-93% milling degree. The rice had high amylose content ranged between 26.23-29.17. While the fat contents fairly low, ranged between 0.32-0.62%. From this research, rice from tidal swamp land has high amylose content that potential as rice with low glycemic index.
ANALISIS STRUKTUR DAN PERILAKU PADI	PADA PEMASARAN BERAS ORGANIK DI KABUPATEN BOYOLALI
Authors: Yuniarti Dwi
Published: December 2020

Tujuan dari penelitian ini adalah untuk menganalisis struktur dan perilaku pemasaran padi gabah organik di Kabupaten Boyolali. Metode dasar penelitian ini adalah metode penelitian diskriptif analitik. Responden penelitian merupakan lembaga pemasaran yang terdiri dari petani produsen padi organik dan pedagang padi organik. Responden penelitian terdiri dari 50 petani, 6 penggilingan padi umum, 2 pedagang pengumpul desa dan 1 koperasi.  Tujuan ini dapat dicapai dengan menggunakan analisis pangsa pasar, konsentrasi pasar, Herfindahl-Hirschman index (HHI) dan statistik deskriptif. Analisis jumlah penjual dan pembeli di pasar padi organik menunjukkan bahwa banyak penjual dan beberapa pembeli, responden merupakan anggota asosiasi pemasaran, ada kebebasan keluar masuk pasar, ada arus informasi pemasaran di pasar beras organik, penetapan harga beras organik ditentukan oleh pedagang/pembeli dengan dasar pada harga yang berlaku saat ini. Responden memperoleh informasi pemasaran dari perantara/pedagang. Struktur pasar beras organik ditemukan adalah oligopsoni. Perilaku responden antara lain mayoritas responden menjual padi segera setelah panen, responden bergantung pada pendanaan koperasi atau asosiasi pasar, penjual tidak berkolusi untuk menentukan harga, serta tidak mengiklankan hasil panen untuk dijual, dan mayoritas responden rutin menghadiri pelatihan tentang budidaya atau pemasaran padi.
Penerapan Model Pertanian Ramah Lingkungan sebagai Jaminan Perbaikan Kuantitas dan Kualitas Hasil Tanaman Pangan
Authors: Wihardjaka Anicetus
Published: December 2020

Keberhasilan peningkatan produktivitas tanaman pangan yang diikuti dengan kelestarian lingkungan hidup merupakan prinsip penerapan sistem pertanian ramah lingkungan berkelanjutan. Berbagai sistem pertanian ramah lingkungan telah dikembangkan dengan berpedoman pada budidaya pertanian yang baik melalui sinergis antar komponen teknologi, antara lain pengelolaan tanaman terpadu, jajar legowo super, sistem integrasi tanaman-ternak bebas limbah, dan pengendalian organisme pengganggu tanaman secara terpadu. Melalui sinergi komponen teknologi secara terpadu, penerapan sistem pertanian ramah lingkungan memantapkan capaian produktivitas tanaman pangan, kualitas tanah terpelihara, dan emisi gas rumah kaca dapat tereduksi. Beberapa komponen teknologi yang mampu memberikan hasil tanaman tinggi, emisi gas rumah kaca rendah, dan rendah kontaminan antara lain pengairan berselang, penggunaan bahan organik matang (nisbah C/N rendah) dengan bantuan biodekomposer, pemupukan berimbang, pengendalian hama secara terpadu dengan mengandalkan pestisida nabati, jarak tanam legowo, dan varietas padi unggul rendah emisi.  Melalui pengelolaan tanaman terpadu, hasil padi sawah dapat meningkat hingga 47%, pendapatan petani meningkat 29-76%, dan emisi GRK turun sekitar 18-26%.
Efektivitas Kompos Limbah Jagung Menggunakan Dekomposer Bakteri dan Cendawan pada Tanaman Jagung
Authors: Pate Faesal
Published: December 2020

Utilization of maize waste as the organic matter sources in agricultural land couldn’t be directly applied, caused by late decomposition prosess. An effort to accelerate of maize waste decomposting needed bioactivator. The research was conducted in green house and Bajeng Research Intallation from March to August 2015. The research was arranged in randomized block design using isolate bacteria and fungus just one or theier combining ie: three bacteria  (B7.1,E7.7and E7.11), three fungus (M7, O5, P7), and four bacteria-fungus combining(B7.1+O5, B7.1+M7, E7.7+P7, B7.1+E7.7+O5), EM4 and N,P,K fertilizer(200,45,60) ha-1as the check treatment. Just one isolate fertilized by 75 percent N,P,K while combine isolate fertilized by 50 percent N,P,K recommended. The results indicated that just one decomposer E7.7 produced high enouugh grain yield not siqnificantly different by N,P,K (200,45,60) and five other just one treatment (E7.11,B7.1,M7 and O5), however siqnificantly different with combining decomposer (B7.1+O5, E7.11+M7, E7.7+P7, B7.1+E7.7+O5 and EM4). This mean that using stalk plus leaf waste maize compost could be subtitution in organic fertilizer untill 25 percent. Meanwhile combining decomposer was good enough for composting stalk and leaf of maize waste ie. isolate B7.1+O5 and E7.7+P7 although not significntly different with the other combine isolate including EM4. Thise case related by applied 50 percent N,P,K inorganic recommended fertilizer did not sufficient to supporting maize nutrient.Key Words: Decomposer, Bacteria, Fungus, Composting,Maize waste
Children's tourism in Russia: management solutions to existing problems
Authors: Korsakova S.A. , Savinkina L.A.
Published: December 2020

The article identifies the current management problems that hinder the development of the sphere of children's tourism, manifested in the need to develop special measures to support children's tourism; determination of a single department coordinating the organization of children's recreation; improving the conceptual apparatus of children's and youth tourism; provision of tourist services to underage tourists by qualified specialists with special training, as well as recommendations for the further development of children's tourism.
MEDIA QUIZIZZ SEBAGAI APLIKASI EVALUASI PEMBELAJARAN KELAS VI DI SDN GUNTUR KOTA CIREBON
Authors: Pusparani Herlina
Published: December 2020

This study aims to describe quizizz application as a learning evaluation application for 6th grade SDN Guntur Cirebon City and improve learning evaluation results through quizizz as a fun learning application. This classroom action research was conducted in two cycles with two learning meetings in each cycle. Each cycle consists of planning, implementing, observing, and reflecting. Every meeting, students work on learning evaluations through quizziz. The subjects of this study were 32 students of class VI A SDN Guntur, Cirebon City. The results of this study indicate that quizizz is one of the learning media for learning evaluation activities. Quizizz is an online application that can be accessed via a computer, laptop or smartphone. The advantage of this application is that it can use images, sounds, and animations. There is an interaction when students work on learning evaluations, so that students feel motivated to do the evaluation and feel happy. Students can improve their learning outcomes as indicated by the increase in quizizz results. In the first cycle of the first meeting, the number of students who completed was 37.5%. This result increased in the first cycle of the second meeting to 62.5%. In the second cycle of the first meeting, completeness reached 87.5%, and in the second cycle of the second meeting, completeness reached 100%. All students can achieve completeness in the evaluation of learning because students are increasingly motivated to be able to do quizzes, so that students' understanding of the material increases. This causes the learning outcomes of students to increase. Keywords: learning evaluation, media, quizizz
METODE JARITMATIKA UNTUK MELATIH KEMAMPUAN BERHITUNG PENJUMLAHAN DAN PENGURANGAN PESERTA DIDIK KELAS 2 SD
Authors: Thoyyibah Dzurriyatin
Published: December 2020

Kemampuan berhitung peserta didik harus dibangun sejak dini terutama dalam pembelajaran tingkat dasar karena merupakan dasar atau fondasi dalam pengembangan pembelajaran. Namun, realitanya kemampuan peserta didik dalam berhitung masih terbilang rendah terutama materi penjumlahan dan pengurangan pada peserta didik kelas rendah. Hal ini disebabkan oleh stigma peserta didik yang menganggap bahwa pembelajaran matematika itu susah, dan membosankan karena kebanyakan guru masih melakukan pebelajaran konvensional pada pembelajaran matematika. Metode jaritmatika dianggap efektif untuk menangani permasalahan tersebut karena metode jaritmatika ialah metode berhitung yang menggunakan bantuan jari-jari tangan dan melibatkan peserta didik secara langsung. Penelitian ini menggunakan metode studi kepustakaan atau disebut juga studi dokumentasi, pengumpulan data yang dilakukan penulis adalah dengan cara mengumpulkan informasi sebanyak-banyaknya dari berbagai sumber kepustakaan atau dokumentasi yang berhubungan dengan penerapan metode jaritmatika dalam pembelajaran matematika materi penjumlahan dan pengurangan. Hasil penelitian ini menunjukkan bahwa metode jaritmatika dapat digunakan untuk melatih kemampuan berhitung penjumlahan dan pengurangan peserta didik karena pembelajaran dengan metode jaritmatika dikemas secara menyenangkan dalam bentuk permainan yang akan sangat berpengaruh bagi perkembangan peserta didik. Selain itu, metode jaritmatika tidak memberatkan otak karena tidak perlu menghafal. Dengan situasi yang menyenangkan peserta didik tidak akan merasa tertekan sehingga kemampuan berhitung peserta didik dapat meningkat.
Avaliação do gerenciamento dos resíduos sólidos de um hospital em um município de Minas Gerais
Authors: Oliveira Vera Eunice
Published: December 2020

Entre as mais variadas formas de resíduos, temos os resíduos sólidos dos serviços de saúde (RSSS), também denominado lixo hospitalar ou apenas resíduos dos serviços de saúde (RSS). Esses resíduos sólidos, quando não tratados de maneira correta, acarretam muitos prejuízos á sociedade e ao meio ambiente. O objetivo dessa avaliação é contribuir com o correto gerenciamento dos resíduos gerados na unidade de saúde respeitando sempre a legislação. O estudo foi constituído pelo levantamento de dados dos resíduos gerados, bem como a sua classificação de acordo com a NBR 10004/2004 da ABNT e a NBR 12808 que classificou os resíduos de serviços de saúde quanto aos riscos potenciais ao meio ambiente e à saúde pública, para que tenham gerenciamento adequado.
Espaço físico escolar na Educação Ambiental de crianças em prol do futuro sustentável
Authors: Girotto Ana Claudia Mansano , Meira Bianca Ramos , Ribeiro Marla Simone Bueno , Lizama Maria de los Angeles Perez , Grossi-Milani Rute
Published: December 2020

O estudo visa a apresentar ações de criação e implantação de espaços educadores sustentáveis em uma escola municipal no Estado do Mato Grosso com a finalidade de estimular a educação ambiental e a sustentabilidade. Trata-se de uma pesquisa aplicada, pautada no uso de metodologias ativas de ensino e técnicas lúdicas de aprendizado, envolvendo acadêmicos de Arquitetura e Urbanismo e a comunidade escolar. O projeto foi desenvolvido de modo a possibilitar proteção relativa às intempéries climáticas e maior conforto térmico, assim como oportunizar a aplicação de atividades lúdicas direcionadas à educação ambiental e sensibilizar os indivíduos para problemas atuais e futuros na esfera ambiental, intencionando uma sociedade mais consciente e sustentável pós-pandemia.
Escola Sustentável: uma análise das representações de professores da área de Linguagens em Campo Grande (MS)
Authors: Siqueira José Flávio Rodrigues , Vargas Icléia Albuquerque de , Zanon Angela Maria
Published: December 2020

Este trabalho objetiva conhecer a representação de escola sustentável de professoras da área de Linguagens que atuam na educação básica em Campo Grande/MS. Trata-se de uma pesquisa que se apoia na metodologia Kozel para a análise de 8 (oito) mapas mentais sob o tema “escola sustentável”. A busca pela representação da escola sustentável está pautada na disseminação dos princípios propostos no Programa Nacional Escolas Sustentáveis/PNES e nas Diretrizes Curriculares Nacionais para a Educação Ambiental/DCNEA. A discussão foi ancorada em teóricos da percepção ambiental e em documentos nacionais do PNES. Constatou-se uma representação da escola sustentável pautada na inclusão de ecotécnicas.
Biodiversité et maladies émergentes
Authors: Brugère-Picoux Jeanne , Angot Jean-Luc
Published: December 2020

La majorité des maladies émergentes ou résurgentes qui ont été observées ces dernières décennies sont des zoonoses et celles-ci ont été parfois la cause de graves crises sanitaires, la pandémie due à la Covid-19 représentant une crise majeure qui ne connaît pas de précédent. Les facteurs favorisant l’émergence ou la résurgence d’une maladie sont très divers et parfois associés : agents pathogènes importés par des vecteurs (animaux de compagnie, oiseaux migrateurs, commerce international, etc…), modification de l’environnement (déforestation, travaux de terrassement, augmentation des zones éclairées, etc…), engouement pour de nombreuses espèces exotiques modifiant leurs écosystèmes en vue de leur commerce, voire de leur consommation, augmentation de la densité de la faune sauvage urbaine ou rurale, modification de nos relations avec l’animal (visites pédagogiques de fermes, nouveaux animaux de compagnie). L’important est de maintenir un écosystème favorable à tous, animaux sauvages ou domestiques et l’Homme. Il n’y a qu’une seule santé dans un seul monde où interviennent la médecine humaine, la médecine vétérinaire et l’environnement. Mots-clés : Biodiversité, maladies émergentes, modification des écosystèmes, faune sauvage, zoonoses, une seule sant.é
Fuzzy Clustering Based Regression Model Forecasting: Weighted By Gustafson-Kessel Algorithm
Authors: ERİLLİ Necati
Published: December 2020

Regression analysis is one of the well-known methods of multivariate analysis and it is efficiently used in many research fields, especially forecasting problems. In order for the results of regression analysis to be effective, some assumptions must be valid. One of these assumptions is the heterogeneity problem. One of the methods used to solve this problem is the weighted regression method. Weighted regression is a method that you can use when the least squares assumption of constant variance in the residuals is violated (heteroscedasticity). With the correct weight, this procedure minimizes the sum of weighted squared residuals to produce residuals with a constant variance (homoscedasticity). In this study, Gustafson-Kessel(GK) method is used to determine weights for weighted regression analysis. GK method is based on the minimization of the sum of weighted squared distances between the data points and the cluster centers. With the fuzzy clustering method, each observation value is bound to the specified clusters in a specific order of membership. These membership degrees will be calculated as weights in the weighted regression analysis and estimation work will be done. In application, 5 simulated and 1 real time data was estimated by the proposed method. The results were interpreted by comparing with Robust Methods (M and S estimator) and Weighted with FCM Regression analysis.
Keterampilan Kepala Sekolah Sebagai Manajer dalam Perspektif Kepemimpinan Alkitabiah
Authors: Darmawan I Putu Ayub , Diana Ruat
Published: December 2020

Abstract: Skills are part of the competencies that must continue to be built by leaders, including principals. To be a good leader, values are needed in order to be able to hold onto. Christian leadership values ​​based on the Bible need to be presented to enrich the scientific treasures of Christian education. The author conducted a library research to discuss the topic of principals' skills in the perspective of Christian leadership. In carrying out their duties as leaders, principals need to have conceptual skills as seen in the example of leaders in the Bible. Then the principal must also have human skills because based on the value of Christianity, a Christian leader does not carry out his leadership with an iron fist but rather pay attention to human values. Managerial skills are also an important component in the principal's function as a manager. These skills are basic skills that must also be possessed starting from planning, organizing, moving, and controlling.
 
Keywords: Skill, Function, Principal, Manager, Christian Leadership
 
Abstrak: Keterampilan merupakan bagian dari kompetensi yang terus harus dibangun oleh pemimpin, termasuk kepala sekolah. Untuk menjadi pemimpin yang baik diperlukan nilai-nilai yang dianut agar dapat menjadi pegangan. Nilai-nilai kepemimpinan Kristen yang berlandaskan Alkitab perlu disajikan untuk memperkaya khazanah keilmuan pendidikan Kristen. Penulis melakukan penelitian pustaka untuk membahas topik keterampilan kepala sekolah dalam perspektif kepemimpinan Kristen. Dalam menjalankan tugas sebagai pemimpin, kepala sekolah perlu memiliki keterampilan konseptual sebagaimana tampak dalam contoh pemimpin dalam Alkitab. Kemudian kepala sekolah juga harus memiliki keterampilan manusiawi karena berdasarkan nilai kekristenan, seorang pemimpin Kristen tidak menjalankan kepemimpinannya dengan tangan besi melainkan memperhatikan nilai kemanusiaan. Keterampilan manajerial juga merupakan komponen penting dalam  fungsi kepala sekolah sebagai manajer. Keterampilan ini adalah keterampilan dasar yang juga harus dimiliki mulai dari perencanaan, pengorganisasian, pengerakan, dan pengawasan.
 
Kata kunci: Keterampilan, Fungsi, Kepala Sekolah, Manajer, Kepemimpinan Kristen
Crear familia: Diana Bellessi y la traducción
Authors: García Laura
Published: December 2020

El trabajo se propone analizar las figuraciones del erotismo y la naturaleza en la poesía de Diana Bellessi a partir de dos momentos de lectura y traducción. El primero se vincula con las poetas chinas traducidas al inglés por Ling Chung y Kenneth Rexroth en The Orchid Boat. Women Poets of China (1972), que Bellessi retraduce, reescribe y homenajea en la primera parte de Tributo del mudo (1982), y a través de las cuales encuentra una forma renovada de mirar la naturaleza del Delta. El segundo momento, vinculado a la escritura erótica, surge a partir de los poemas de Olga Broumas y Marichiko (heterónimo de Kenneth Rexroth) publicados y traducidos en Diario de poesía. A través de estas lecturas y traducciones, Bellessi procura abrir una senda inexplorada en la literatura argentina que culminará con la publicación Eroica (1988).
A 50 años del servicio de aborto feminista de Jane en Chicago
Authors: Drovetta Raquel Irene
Published: December 2020

Este trabajo se propone recuperar, reunir, y analizar documentos sobre la organización de mujeres de Chicago, conocidas como Jane, quienes llevaron adelante un servicio de aborto clandestino, entre 1969 y 1973.  

Elaboramos una reconstrucción histórica de los aspectos centrales de la experiencia con el objetivo de mostrar las estrategias que desarrollaron para para implementar el servicio, aun sin contar con instrucción formal en medicina.

Se consultaron archivos conformado por materiales producidos por la organización y entrevistas de ex integrantes del grupo, disponibles en el marco del proyecto de archivo documental HerStory de Chicago Women's Liberation Union. Este procedimiento de trabajo con fuentes fue complementado, por datos secundarios obtenidos a partir de artículos de divulgación, periódicos y filmes, y en publicaciones científicas producidas en las últimas cuatro décadas.

Entre las conclusiones centrales destacamos la centralidad que ocupó para la organización Jane la lucha por el aborto libre y la importancia otorgada al modo de atención de las mujeres basado en una praxis feminista. Remarcamos que se trata de demandas con notable vigencia en el contexto latinoamericano actual.
La interseccionalidad, el feminismo socialista y el activismo contemporáneo: reflexiones de una feminista socialista de la segunda ola
Authors: Gordon Linda
Published: December 2020

Título original: ‘‘Intersectionality’, Socialist Feminism and Contemporary Activism: Musings by a Second-Wave Socialist Feminist’. Gender & History, Vol.28 No.2 August 2016, pp. 340–357. Traducción de Lía Diaz.
FEN BİLİMLERİ ÖĞRETMENLERİNİN SOSYO-BİLİMSEL KONULAR HAKKINDAKİ TUTUMLARININ İNCELENMESİ
Authors: CAYMAZ Belkiz
Published: December 2020

Bu araştırmanın amacı, fen bilimleri öğretmenlerinin sosyo-bilimsel konulara yönelik genel tutumlarını ve bunun cinsiyete, yaşa, mesleki kıdeme ve okulun bulunduğu yere göre farklılaşıp farklılaşmadığını tespit etmektir. Araştırmanın çalışma grubunu, Kastamonu’da görev yapan ve çalışmaya gönüllü olarak katılan 124 fen bilimleri öğretmeni oluşturmaktadır. Tarama yönteminin kullanıldığı bu araştırmada, veriler “Sosyobilimsel Konulara Yönelik Tutum Ölçeği” aracılığıyla toplanmıştır. Verilerin analizinde frekans, yüzde, aritmetik ortalama, bağımsız t-testi ve ANOVA kullanılmıştır. Araştırma sonucunda, fen bilimleri öğretmenlerinin sosyo-bilimsel konulara yönelik genel tutumlarının ve alt boyutlarına yönelik tutumlarının olumlu ve yüksek düzeyde olduğu tespit edilmiştir. Yaş ve mesleki kıdem açısından, fen bilimleri öğretmenlerinin sosyo-bilimsel konulara yönelik genel tutumlarının ve alt boyutlarına yönelik tutumlarının anlamlı farklılık gösterdiği, cinsiyet değişkeni açısından ise sadece kaygı alt boyutuna yönelik tutumlarının anlamlı farklılık gösterdiği belirlenmiştir. Okulun bulunduğu yer değişkeni açısından ise, öğretmenlerin sosyo-bilimsel konulara yönelik genel tutumlarında, yarar ve önem alt boyutu ile hoşlanma alt boyutuna yönelik tutumlarında anlamlı farklılık olduğu, kaygı alt boyutuna yönelik tutumlarında ise anlamlı farklılık olmadığı görülmüştür.
Ativação do patrimônio biocultural do cerrado e turismo comunitário: notas metodológicas a partir do caso de Penedo (São Desidério, Bahia, Brasil)
Authors: Baqueiro Brandão Paulo Roberto
Published: December 2020

Este texto parte de um questionamento: quais são os caminhos metodológicos para o desenvolvimento de uma proposta de turismo comunitário em pequenas localidades a partir da ativação do patrimônio biocultural e sob a inspiração do Buen Vivir como filosofia de vida e práxis territorial? Diante dessa indagação, pretende-se apresentar uma proposta metodológica para implantação de iniciativa de turismo comunitário a partir da ativação do patrimônio biocultural do cerrado, considerando a possibilidade da sua realização em Penedo, localidade do município baiano de São Desidério (Brasil). Para tanto, o artigo segue um roteiro que exprime a necessidade de (a) desenvolver um arcabouço teórico-conceitual orientador do trabalho de investigação-intervenção a ser desenvolvido, (b) caracterizar a localidade objeto dessa ação cooperativa e (c) apontar ferramentas de pesquisa para a identificação das territorialidades e temporalidades locais, bem como dos principais problemas e riscos que afetam o povoado de Penedo, suas causas e efeitos.
Investigation of droplet impact on inclined fabric based on CMOS imaging technology and FSI numerical method
Authors: BAI SHUHUA , CHENG HAN
Published: December 2020

In order to study the impact characteristics of droplet on inclined fabric, the relevant experiment was setup in this paper.The process of a single droplet (2.12 mm) impacting inclined fabric (45°) was captured by CMOS (ComplementaryMetal-Oxide Semiconductor) imaging technology. It could be found that there was a second impact phenomenon duringspreading stage, which was very different from impacting horizontal fabric. Then a two-way coupling method was usedto simulate that impacting process. The numerical results were basically consistent with the experimental results. Inaddition, the reaction force and vibration characteristics of fabric which couldn’t be collected by experiments were alsoobtained. Finally, the effect of inclination angle on impact characteristics was analyzed by numerical method. The biggerthe inclination angle was, the longer the stability time of droplet was, and the smaller the reaction force on fabric was.The change law conformed to the momentum theorem. The method and conclusions could provide some references forthe design of parachute system.
Gestures, Embodiment, and Learning the Rate of Change
Authors: Yu Yanning , Uttal David
Published: December 2020

Many researchers have stressed the embodied nature of mathematical understanding. Here we explore how embodied knowledge may evolve as students learn a basic calculus concept: the rate of change. We examined undergraduate students with different levels of calculus knowledge working in pairs to model the rate of change in an everyday phenomenon. Our findings revealed substantial differences between advanced and introductory students in how they represented the rate of change with their speech and gestures. In particular, the advanced students’ embodied representations showed alignment with the formal symbolic process of integration and reflected more advanced ways to coordinate the relation between multiple changing variables. For example, advanced students often made gestures that represented a “disk” when explaining how the rate at which water rose in a bottle was related to the change in height. Thus, both introductory and advanced students demonstrated embodied knowledge through speech and gestures, but the advanced students constructed different concrete representations that reflected an advancement in their embodied knowledge. Our findings are relevant to calculus education and to the study of gestures in mathematics learning.
Da/na palavra e(m) ação, discurso e poder: diálogos filosóficos
Authors: Daróz Elaine Pereira
Published: December 2020

Os embates filosóficos na era antiga se debruçavam sobre as questões acerca do homem e(m) suas relações sociais. Dentre as questões discutidas, a relevância da língua(gem) nesse processo de significação do homem no mundo é um ponto de concordância entre eles. Na esteira dos estudos da língua(gem), a língua surge como algo diferente, incitando a estudiosos a compreendê-la a partir de em vertentes teóricas distintas. Considerando que os discursos são estruturados numa relação entre atualidade e memória, buscamos neste trabalho percorrer os caminhos trilhados por filósofos e estudiosos da língua(gem) ao longo dos tempos – quais sejam Aristóteles, Mikhail Bakhtin e Michel Pêcheux – para melhor compreendermos o processo complexo pelo qual sujeitos e sentidos se constituem mútua e concomitantemente. Em nossa reflexão, levamos em consideração as diferentes condições de produção em que essas reflexões foram desenvolvidas, tomando como elo norteador a dialogicidade inerente à relação entre sujeito e língua, apontada, a seu modo, pelos filósofos aqui apresentados. Ao longo de nossa reflexão, compreendemos que o discurso, enquanto lugar de materialização da ideologia é uma instância de poder na e pela qual se fundam as relações de tensão inerente às práticas entre os sujeitos.
Jogando “Ping Pong” com as palavras
Authors: Clüver Claus
Published: December 2020

Em recente entrevista concedida a Márcia Arbex (UFMG) e Miriam Vieira (UFSJ) para o dossiê intitulado “Imagens legíveis, textos visíveis”, organizado para a Revista Vis[1], Claus Clüver, Professor Emérito de Literatura Comparada pela Universidade de Indiana, Estados Unidos, reconhece a relevância das muitas referências à Poesia Concreta Brasileira em sua vasta investigação acerca de configurações de mídias híbridas. De modo a suplementar os apontamentos feitos em virtude de sua intensa preocupação com esse gênero peculiar da literatura, o professor generosamente compartilhou com as entrevistadoras o relato ensaístico intitulado “Playing ‘Ping Pong’ with Words”. Apesar de dirigido a um público não acadêmico sem conhecimento prévio do gênero, o tom intimista do relato de seu encontro com os poetas concretistas brasileiros e seus poemas merecem visibilidade junto ao público interessado nos estudos da intermidialidade.
STUDENT’S PERCEPTION ON MOBILE LEARNING: THE INFLUENCING FACTORS
Authors: Chelvarayan Anushia , Chee Jia En , Yeo Sook Fern , Hashim Hazlaili
Published: December 2020

Mobile learning has become the most popular way of transporting information and the number of users has been rapidly increasing all over the world. Most importantly, students, these days can be defined as members of the digital native or network generation, born in the digital era while interacting with digital technology since childhood. Mobile devices have gradually become more popular around the world. Due to their popularity, the education sector has considered mobile learning (M-learning) technologies as pedagogical tools for users to be able to use their devices for self-learning anytime and anywhere. Therefore, this study examines the factors affecting students’ perception of mobile learning. Several types of research show University professors are adopting mobile learning for discussion meetings in order to help students in academic learning and through effective connection and collaboration inside and outside the classroom. The theoretical foundations for this study are the Technology Acceptance Model (TAM) and the Unified Theory of Acceptance and Use of Technology (UTAUT). A total of 200 respondents from a private university in Malaysia participated in this research. Samples were selected using convenience sampling and the respondents answered the questionnaire via Google form and paper and pencil method. A nominal scale and Five-point Likert scale was used to design the questions in the questionnaire. Data analysis methods used in this research were Descriptive Analysis, Reliability Analysis, and Multiple Regression Analysis. The data collected and also information in this research are highly beneficial and valuable to students, supervisors, academics, researchers, learning institutions, and the government as we are able to gauge and understand the factors influencing students’ perception of mobile learning. However, there are some limitations as this research does not reflect the actual student population in tertiary education in Malaysia and it only focuses on four variables i.e. performance expectancy, effort expectancy, social influence, and quality of service. There are several possibilities for future researches whereby one can focus more on other influencing factors such as pervasive technology usage, tech-savvy future generations, convenience, and many more.
THE RELEVANCY OF SELF DEVELOPMENT AND ACADEMIC EXPATRIATES’ CAREER IN PUBLIC UNIVERSITIES OF MALAYSIA
Authors: Othman Irma Wani , Yusoff Muhammad Safuan , Esa Mohd Sohaimi , Ibrahim Mohd Azri , Mohd Tamring Budi Anto , Mohd Shah Mohd Kamal
Published: December 2020

The presence of international staff or independent expatriate academicians in the cross border higher education world today is indeed a global issue that brings benefits to the development of higher education worldwide. The decision taken by independent expatriate academicians to come to the host country to pursue a career as an academician will certainly have useful implications on the career they are pursuing. Through in-depth interviews based on a qualitative approach adopted on thirty (30) selected voluntarily respondents in three public universities, the objective of this study was to find out the implications on self-development of careers as independent expatriate academicians serving in the host country. From the findings received as a result of the interviews conducted, the implications for self-development in terms of the career which could be seen were (I) Promotion (II) Lucrative income (III) Security in Malaysia and (IV) Harmony in the workplace. From each finding stated by the respondents involved, it had been proven that the decision was taken by independent expatriate academicians to the host country in pursuing a career as an academician had given the positive implication that indirectly brought benefits to themselves. The implications for self-development on a career as an independent expatriate academician were also able to lead to the retention of human resources of independent expatriate academicians which can reduce the turnover rate in an organisation such as academics in Malaysian Public Institutions of Higher Learning.
THE MEDIATING EFFECT OF ATTITUDE ON THE RELATIONSHIPS BETWEEN WHATSAPP USAGE, KNOWLEDGE, AND BEHAVIORAL IMPACT
Authors: Haque Md Saydul , Wok Saodah
Published: December 2020

With millions of users worldwide, WhatsApp has truly become an outstanding and one of the quickest developing information exchange platforms that the modern world has ever seen. The application offers many useful features to people all around the world. More specifically, its use has remarkably changed how lecturers and students communicate and share information. With this in mind, this study attempts to investigate the effect of WhatsApp usage in a tertiary educational institution in Malaysia. The specific objectives of the study are to determine the level of usage, attitude, knowledge, and behavioral impact of WhatsApp communication; to analyze the relationships between behavioral impact, usage, knowledge, and attitude in using WhatsApp communication; and to test the mediating effect of attitude on the relationships between WhatsApp usage, knowledge, and behavioral impact. The underlying theory used in this study is the media richness theory. The study employed the quantitative research design with the survey method and online questionnaire as the research instrument for data collection. A total of 161 respondents from International Islamic University Malaysia (IIUM) participated in the study. The results revealed a high level of WhatsApp usage, a positive attitude, high knowledge, and a positive behavioral impact of WhatsApp communication among IIUM postgraduate students. Attitude partially mediated the relationships of WhatsApp usage and knowledge with behavioral impact.