bluuebunny/crossref_metadata_2025_split huggingface dataset:
Pengaruh Strategi Inkuiri Terhadap Hasil Belajar Ditinjau Dari Perbedaan Motivasi Belajar IPA Kelas V SD
Authors: Suprianti Dhia , Munzil Munzil , Dasna I Wayan 
Published: September 2021

<p><strong>Abstract:</strong> This research was conducted with the aim of testing the influence of guided inkuiri strategies assisted by interactive multimedia and learning motivation on the learning outcomes of elementary school students. This research uses quasi experimental design. Research subjects of 60 elementary school students. The instruments used were questionnaires to measure the difference in student learning motivation with a reliability level of Croanbach's alpha 0.891 and a multiple choice assessment instrument with cronbach's alpha reliability level of 0.872. The research data was analyzed using the two way ANOVA method. The results of this study (1) there is an influence of student learning outcomes in the experimental class that get the treatment of interactive multimedia-assisted inkuiri strategies with control classes that get conventional treatment, (2) there is an influence between students in the experimental class and controls that have excellent different learning motivation, and (3) there is an interaction between guided and conventional inkuiri strategies with differences in student learning motivation.</p><strong>Abstrak:</strong> Penelitian ini dilakukan dengan tujuan menguji pengaruh strategi inkuiri terbimbing berbantuan multimedia interaktif dan motivasi belajar terhadap hasil belajar siswa SD. Menggunakan desain quasi eksperimen. Subjek 60 siswa SD. Instrumen yang digunakan yaitu kuesioner untuk mengukur tingkat perbedaan motivasi belajar siswa dengan tingkat <em>reliability croanbach’s alpha</em> 0,891 dan instrumen penilaian hasil belajar berupa pilihan ganda dengan tingkat <em>reliability cronbach’s alpha</em> 0,872. Data penelitian dianalisis menggunakan metode <em>two way</em> ANOVA. Hasil penelitian ini (1) terdapat pengaruh hasil belajar siswa pada kelas eksperimen yang mendapatkan perlakuan strategi inkuiri terbimbing berbantuan multimedia interaktif dengan kelas kontrol mendapatkan perlakuan secara konvensional, (2) terdapat pengaruh antara siswa pada kelas eksperimen dan kontrol yang memiliki motivasi berbeda, dan (3) terdapat interaksi antara strategi inkuiri terbimbing dan konvensional dengan perbedaan motivasi belajar siswa.
Beban Kognitif Siswa Dalam Pembelajaran Matematika Berorientasi Pada Higher Order Thinking Skills (HOTS)
Authors: Puspa Riya Dwi , As’ari Abdur Rahman , Sukoriyanto Sukoriyanto 
Published: September 2021

<p><strong>Abstract:</strong> This research is research that have purpose to describe students’ cognitive loads in mathematic learning oriented to <em>Higher Order Thinking Skills</em> (HOTS). Research method that is used in this research is descriptive qualitative. The results showed that the intrinsic cognitive loads were caused by students’ difficulties in finding concept of integral, students’ difficulties in doing operation of algebraic form, students’ difficulties in solving HOTS problems at level of analyzing, evaluating and creating. Extraneous cognitive loads were caused by using local language that is used by teacher for giving information, time alocation for doing discussion was too short, noise during the discussion and teacher give explanation fastly. Germane cognitive loads were caused by the use of technology in learning such as PowerPoint slides, Google for Education and the internet for accessing to online learning resources, and the existence of asking questions that stimulate students’ HOTS and group discussion.</p><strong>Abstrak:</strong><em> </em>Penelitian ini merupakan penelitian yang bertujuan untuk mendeskripsikan beban kognitif siswa dalam pembelajaran matematika yang berorientasi pada <em>Higher Order Thinking Skills</em> (HOTS). Metode penelitian yang digunakan dalam penelitian ini adalah kualitatif deskriptif. Hasil penelitian menunjukkan bahwa beban kognitif intrinsik disebabkan oleh kesulitan siswa dalam menemukan konsep integral, kesulitan siswa dalam melakukan operasi bentuk aljabar, kesulitan siswa dalam menyelesaikan soal HOTS pada level menganalisis, mengevaluasi, dan mengkreasi. Beban kognitif <em>extraneous </em>disebabkan oleh penggunaan bahasa daerah yang digunakan guru dalam menyampaikan informasi, alokasi waktu untuk berdiskusi yang cukup singkat, kegaduhan saat diskusi berlangsung, dan guru memberikan penjelasan dengan cepat. Beban kognitif <em>germane</em> disebabkan penggunaan teknologi dalam pembelajaran, misalnya <em>slide powerpoint,</em> <em>Google for Education </em>dan internet untuk akses sumber belajar <em>online</em>, serta adanya pengajuan pertanyaan yang menstimulasi HOTS siswa dan diskusi kelompok.
Pengembangan Media Kobaki pada Materi Perkalian dan Pembagian untuk Siswa Kelas II Sekolah Dasar
Authors: Asmara Dwi Virgo Mulia , Kuswandi Dedi , As’ari Abdur Rahman 
Published: September 2021

<pre><strong>Abstract: </strong>The type of research used is R&amp;D adaptation from Dick and Carey. The aim is to determine the level of feasibility, attractiveness, and effectiveness of product development. The product is the kobaki media for second grade elementary school learning for multiplication and distribution materials. The subjects involved in the research were students from grades 2A and 2B of the Muhammadiyah 4 Elementary School in Batu City. The procedures and steps used for the study used the procedures and steps of the Puslitjaknov Team which consisted of five activity steps. From the data obtained from research for the kobaki media, the criteria are quite decent. very interesting, and very effective to use. </pre><strong>Abstrak:</strong> Jenis penelitian yang digunakan yaitu R &amp; D adaptasi dari Dick and Carey. Tujuannya untuk mengetahui tingkat kelayakan, kemenarikan, dan keefektifan produk pengembangan. Produk tersebut adalah media kobaki untuk pembelajaran kelas dua sekolah dasar untuk materi perkalian dan pembagian. Untuk subjek yang terlibat dalam penelitian tersebut merupakan siswa dari kelas 2A dan 2B Sekolah Dasar Muhammadiyah 4 Kota Batu. Prosedur dan langkah yang digunakan untuk penelitian tersebut menggunakan prosedur dan langkah dari Tim Puslitjaknov yang terdiri dari lima langkah kegiatan. Dari data yang diperoleh dari penelitian untuk media kobaki mendapatkan kriteria cukup layak. sangat menarik, dan sangat efektif untuk digunakan.
Membentuk Karakter Anak Usia Dini melalui Permainan Tradisional
Authors: Srikandi Sardiah , Suardana I Made , Sulthoni Sulthoni 
Published: September 2021

<p><strong>Abstract:</strong> Forming characters in early childhood is very important to do through various ways, one of which is to carry out traditional games. The focus of this research is how to shape the character of early childhood through the traditional play of Engklek and Umpet Plots in PAUD Omah Bocah An-Na'afi Malang, East Java. This study uses qualitative methods, this type of research is descriptive research that describes the actual events that are supported by data in the form of observations, and interviews. The results of this study indicate that the traditional play activities of the Engklek and Umpet Plots are carried out for 30 minutes from 10.30 to 11.05, and the activities are carried out routinely from Monday to Thursday. The traditional play activities of Engklek and Umpet Plots can form early childhood characters starting from honesty, responsibility, discipline, mutual cooperation, self-reliance, and religious character.</p><strong>Abstrak:</strong><em> </em>Membentuk karakter pada anak usia dini sangat penting untuk dilakukan melalui berbagai cara, salah satunya adalah dengan melaksanakan permainan tradisional. Fokus penelitian ini adalah bagaimana membentuk karakter anak usia dini melalui permainan tradisional Engklek dan Petak Umpet di PAUD Omah Bocah An-Na’afi Malang Jawa Timur. Penelitian ini menggunakan metode kualitatif. Jenis penelitian ini yaitu penelitian deskriptif yang menggambarkan kejadian yang sebernarnya yang didukung oleh data berupa observasi dan wawancara. Hasil penelitian ini menunjukkan bahwa kegiatan permainan tradisional Engklek dan Petak Umpet yang dilaksanakan selama 30 menit dari jam 10.30 sampai dengan 11.05, dan kegiatannya dilakukan secara rutin pada hari Senin—Kamis. Kegiatan permainan tradisional Engklek dan Petak Umpet ini dapat membentuk karakter anak usia dini mulai dari karakter kejujuran, karakter tanggungjawab, karakter disiplin, karakter gotong-royong, karakter mandiri, dan karakter religius.
Using Instagram in Teaching Writing for University Freshmen
Authors: Husna Rosyida Asma’ul , Anugerahwati Mirjam , Furaidah Furaidah 
Published: September 2021

<p><strong>Abstract:</strong> This study aimed at elaborating the use of Instagram in teaching writing for university freshmen. This current study contained a reflection from a lecturer who had used Instagram to improve students’ writing skill through process-genre based approach. The data were taken from a reflective daily journal. Further, the journal specifically informed what worked well and what did not from the use of Instagram for writing skill improvement. The result showed that Instagram could significantly improve students’ writing skill, especially to help them find that writing was part of social activities and create a good composition that had been perfectly finalized.</p><strong>Abstrak:</strong><em> </em>Penelitian ini membahas tentang penggunaan Instagram dalam pengajaran <em>writing skill</em> (keterampilan menulis) pada mahasiswa tahun pertama. Penelitian tersebut berisi tentang sebuah refleksi dari seorang pengajar yang telah menggunakan Instagram sebagai media pendukung pembelajaran <em>writing skill </em>melalui pendekatan proses-genre. Data penelitian berasal dari jurnal harian yang sekaligus digunakan untuk mencatat serangkaian kegiatan yang dilalui pada proses pengajaran. Hasil dari penelitian ini menunjukkan bahwa penggunaan Instagram mampu meningkatkan keterampilan menulis mahasiswa sehingga mereka menyadari bahwa menulis merupakan bagian daripada kegiatan sosial serta, serta membantu mereka untuk bisa membuat sebuah karangan atau tulisan yang sempurna. <em> </em>
Palmer Amaranth (Amaranthaceae) and At-Plant Insecticide Impacts on Tarnished Plant Bug (Hemiptera: Miridae) and Injury to Seedling Cotton Terminals
Authors: Randell Taylor M. , Roberts Phillip M. , Culpepper A. Stanley 
Published: September 2021

Abstract
The direct effect of Palmer amaranth, Amaranthus palmeri Watson, on cotton growth and development is well documented, but its indirect effect through harboring feeding insects is less understood. Palmer amaranth emerged with cotton and remaining in the field for 30 days increased tarnished plant bug, Lygus lineolaris (Palisot de Beauvois), populations compared with a weed-free system. Weedy systems noted up to 49% more damaged terminals than weed-free systems, with cotton yield decreasing as damaged terminals increased at one of two locations. Thrips (Thysanoptera: Thripidae) populations were effectively controlled with Aeris® (Bayer, St. Louis, MO) seed treatment (imidacloprid + thiodicarb at 0.375 mg active ingredient per seed), but there was no correlation between thrips infestations and increasing damaged cotton terminals. However, Aeris seed treatment significantly reduced the occurrence of damaged cotton terminals. In a second experiment, Palmer amaranth infesting an area adjacent to a weed-free cotton field had maximum damaged terminals of 51% on the cotton row proximal to the weedy area, with the distal cotton row (44 m away) having 8% terminal damage. Cotton yield significantly decreased as damaged terminals increased. A final bioassay experiment further evaluated the influence of seed treatment on tarnished plant bug feeding impacting cotton seedlings. With Aeris seed treatment, tarnished plant bug mortality was 97%, compared with 37% for nontreated seed. Results suggest tarnished plant bug infestations increased where Palmer amaranth was present in cotton fields. Additionally, greater Palmer amaranth infestations led to an increase in damaged cotton terminals and lower yields.
Efficiency of Three Egg Parasitoid Species on Fall Armyworm (Lepidoptera: Noctuidae) in Laboratory and Field Cages
Authors: Jaraleño-Teniente Jannet , Lomeli-Flores J. Refugio , Rodríguez-Leyva Esteban , Bujanos-Muñiz Rafael , Rodríguez-Rodríguez Susana E. 
Published: September 2021

Abstract
Egg parasitoids are the most used natural enemies in biological control of Spodoptera frugiperda (J.E. Smith), a pest of gramineous plants native to the Americas that recently invaded Africa and some countries of Asia. Although Trichogramma pretiosum (Riley) is one of the main species used against this pest, there are other species with equal or greater parasitism potential. The objective of this work was to compare, in laboratory and in field cages, the parasitism of Telenomus remus Nixon, Trichogramma atopovirilia (Oatman and Platner), and T. pretiosum on S. frugiperda eggs. Telenomus remus and T. atopovirilia reached the highest percentages of parasitism in laboratory (&gt;70%) which did not differ statistically from each other. Trichogramma pretiosum had the lowest percentage of parasitism (29%) of the three. In the field cage assays, Te. remus parasitized 30% of the S. frugiperda egg masses, and T. pretiosum parasitized about 7.5% of the egg masses. These results underscore the importance of adequate selection of egg parasitoids for their use in biological control programs by augmentation against S. frugiperda.
The Necessity to Keep Taking Health Protocols in People Receiving the Covid-19 Vaccine
Authors: Aghaei Mina , Yunesian Masud 
Published: September 2021

Although the vaccination has begun in many countries around the world, experts declare that there is a long way to go in coronavirus battle, and it will take a long time for the vaccine to have a significant effect. Therefore many questions have arisen about “the necessity to keep taking health protocols” and “how long does it take for people to return to normal activities and reduce or even abandon health protocols after receiving the Covid-19 vaccine”. According to CDC (Centers for Disease Control and prevention) reports, significant immunity is expected to occur approximately 2 weeks after receiving the second dose of the vaccine, however getting the vaccine does not mean the end of public health and preventive measures, and all full vaccinated people need to keep taking all health protocols and precautions for the reasons discussed in this letter to editor.
Investigating learning outcome based on a model of English teaching of Indonesian elementary students
Authors: Syatriana Eny , Erwin Akib 
Published: September 2021

This research aim of this study is to develop a model of teaching English for Indonesian elementary students. This developmental research consisted of five key procedures: analysis of need, model design, development, implementation, and evaluation. In the model development, two treatments were conducted to test the model. In the evaluation, a pre-test and post-test were administered to see the effectiveness of the model and the instructional materials in enhancing the English achievement of the students. The subject consisted of three school headmasters, three English teachers, and the fourth graders of three elementary schools in Makassar city. The teaching model consisting of four main stages: pre-activity, presentation, practice, and evaluation considers three main aspect: the language skill, language performance, and pedagogic aspects. The result indicates that the English teaching model is successful in enhancing the students’ achievement in English and learning interest. In its form, the teaching model is flexible; it helps teacher write instructional materials, write lesson plans, teach, and analyze the teaching and learning process. The standards in thefieldsupportthe model and the teaching of students.
Development of a Fracturing Nanofluid with Dual Purpose: Increasing Heavy Oil Mobility and Reducing the Reservoir Damage Associated at the Remaining Fracture Fluid
Authors: Giraldo Maria Alejandra , Zabala Richard , Bahamon Jorge Ítalo , Mazo Camilo , Guzmán Juan David , Franco Camilo Andrés , Cortés Farid Bernardo 
Published: September 2021

Abstract
This work aims to develop a fracturing nanofluid with a dual purpose: i) to increase heavy crude oil mobility and ii) to reduce formation damage caused by the remaining fluid. Three commercial nanoparticles were evaluated: two fumed silica of different sizes and one type of alumina. They were acidified and basified, obtaining nine nanoparticles (NPs) by the surface modification, characterized by TEM, DLS, Z Potential and Total Acidity. The effect of adding nanoparticles at different concentrations onto the linear gel and heavy crude oil was determined by their rheological behavior. Also, there was assessed the alteration of the rock wettability by contact angle for all NPs and concentrations. Based on these results, the nanoparticle with better performance was the neutral fumed silica of 7 nm at 1000 mg/L. These were used to make a fracturing nanofluid from a commercial fracturing fluid (FF). Both of them were evaluated through their rheological behavior overtime at high pressure following the API RP39 test and quantitative measurements of the rock sample wettability changes. Displacement tests also were performed on proppant and rock samples at reservoir conditions: pressure and temperature. Finally, there was evaluated the rheological behavior of the crude oil recovered in the displacement test. It was possible to conclude that the inclusion of nanoparticles allowed obtaining a reduction of 10 and 20% in the two breakers used in the commercial fracture fluid formulation. An alteration of the rock wettability was achieved, where the rock sample became up to 50% more wettable to water. Moreover, there was a diminution of 53% in the damage caused by the remaining fracturing fluid to the oil effective permeability in the proppant medium. In the rock sample, a decrease of 31% of this kind of damage was observed. Increases of 28 and 18 % in the crude oil recovery were noticed in the proppant and the rock sample, respectively. Finally, there was a reduction of 40% in the crude oil viscosity, showing the effectiveness of adding nanoparticles to fracturing fluids for increasing oil mobility and reducing the formation damage.
A New Condition Monitoring System Improves the Reliability of the RCD Element During the MPD Jobs
Authors: Machocki Krzysztof Karol , Marhoon Zahrah , Shaarawi Amjad , Sehsah Ossama , Dixon Tom , Muhammad Jamal uddin 
Published: September 2021

Abstract
Managed pressure drilling (MPD) is a technology that allows for precise wellbore pressure control, especially in formations of uncertain geomechanical properties (in specific: Fracture pressure and pore pressure gradients). The rotating control device (RCD) is the backbone to the MPD equipment. A new condition monitoring system was developed to improve the reliability of the RCD elements and to eliminate its catastrophic failures during MPD jobs.
The new method to increase the reliability of an RCD is based on understanding and quantifying the factors affecting the lifetime of the RCD components. The condition monitoring system was designed to be attached onto the RCD and collect data from an array of sensors during the MPD jobs.
Sensors are measuring: vibrations, acoustic emissions, rotation, pipe movement, temperatures and contamination level in the coolant fluid.
System is capable to display the measurements in the real time to the operator, giving early warnings to take actions in order to prevent catastrophic failures of the RCD during the job. Data is also recorded to allow further processing and analysis using ML and AI techniques.
The authors will discuss in detail the background and rationale to the new technology, including a review of the condition monitoring system, its elements, and functionality. The system design and intended operation will be explained including, sensors and data collection points in the condition monitoring process.
No catastrophic failures of the RCD were encountered when the RCD condition monitoring system was installed and running in the field up to date. The measurements collected from the array of sensors and presented in the real time to the MPD operators, allows to monitor changes in condition of the critical RCD elements. From the system design, sensor type, and frequency of data inputs, it was concluded that the quantification of some parameters affecting the lifetime of RCD could be successfully performed in post analysis, using advanced AI techniques.
This condition monitoring system can optimize the MPD operations, making MPD jobs safer and reducing the Non Productive Time.
The novelty of this condition monitoring system is in the approach of measuring and displaying critical values to the operator during the job and possibility to quantification of the factors affecting the RCD elements lifetime.
A Novel Multiphysics Multiscale Multiporosity Shale Gas Transport Model for Geomechanics/Flow Coupling in Steady and Transient States
Authors: Li Zihao , Teng Yuntian , Fan Ming , Ripepi Nino , Chen Cheng 
Published: September 2021

Summary
A novel multiphysics multiscale multiporosity shale gas transport (M3ST) model was developed to investigate shale gas transport in both transient and steady states. The microscale model component contains a kerogen domain and an inorganic matrix domain, and each domain has its own geomechanical and gas transport properties. Permeabilities of various shale cores were measured in the laboratory using a pulse decay permeameter (PDP) with different pore pressure and confining stress combinations. The PDP-measured apparent permeability as a function of pore pressure under two effective stresses was fitted using the microscale M3ST model component based on nonlinear least squares fitting (NLSF), and the fitted model parameters were able to provide accurate model predictions for another effective stress. The parameters and petrophysical properties determined in the steady state were then used in the transient-state, continuum-scale M3ST model component, which performed history matching of the evolutions of the upstream and downstream gas pressures. In addition, a double-exponential empirical model was developed as a powerful alternative to the M3ST model to fit laboratory-measured apparent permeability under various effective stresses and pore pressures. The developed M3ST model and the research findings in this study provided critical insights into the role of the multiphysics mechanisms, including geomechanics, fluid dynamics and transport, and the Klinkenberg effect on shale gas transport across different spatial scales in both steady and transient states.