Research subjects and hot topics of foil bearings performance in recent twenty years: analysis and prediction

Author(s):  
Quan Zhou ◽  
Yi Zhang ◽  
Yu Hou
2010 ◽  
Author(s):  
Marisa Topping ◽  
Abir Mullick ◽  
Sarah Endicott ◽  
Wooyoung Sung ◽  
Gourab Kar

2019 ◽  
Vol 3 (1) ◽  
pp. 70-80
Author(s):  
Sri Ayu Harani Tanjung ◽  
Yuli Amalia

Bahan ajar dikembangkan berdasarkan karakteristik siswa, sehingga kompetensi yang ditetapkan dapat dicapai. Secara umum kemampuan pemecahan masalah siswa masih sangat rendah, siswa belum bisa memahami soal, sehingga terkendala dalam menentukan model penyelesaian soal matematika. Penelitian ini bertujuan untuk mendeskripsikan kevalidan, keefektifan, dan respon siswa terhadap bahan ajar berbasis Problem Based Learning berkemampuan pemecahan masalah yang dikembangkan. Penelitian ini merupakan penelitian pengembangan dengan menggunakan model ADDIE yaitu Analysis, Design, Development, Implementation, dan Evaluation. Subjek Penelitan dalam penelitian ini adalah siswa SMA Negeri 1 Meureubo kelas X Mia2 sebanyak 23 siswa. Instrumen penelitian berupa lembar validasi, angket respon siswa, dan tes. Dari hasil uji coba, pada uji coba I dan II diperoleh bahan ajar berbasis Problem Based Learning yang dikembangkan efektif ditinjau dari 70% siswa yang mengikuti tes kemampuan pemecahan masalah memperoleh nilai minimal 75 dan tercapainya ketuntasan belajar tes kemampuan pemecahan masalah  75% dan respon positif siswa terhadap bahan ajar berbasis Problem Based Learning untuk kemampuan pemecahan masalah yang dikembangkan. Teaching materials are developed based on the characteristics of students, so that the specified competencies can be achieved. In general, students' problem solving abilities are still very low, students have not been able to understand the problem, so it is constrained in determining the mathematical problem solving model. This study aims to describe the validity, effectiveness, and response of students to Problem Based Learning-based teaching materials that are problem-solving skills developed. This research is a development research using ADDIE models namely Analysis, Design, Development, Implementation, and Evaluation. The research subjects in this study were 23 students of Meureubo High School 1 in class Mia2 as many as 23 students. The research instruments were validation sheets, student response questionnaires, and tests. From the results of the trials, in the first and second trials obtained teaching materials based on Problem Based Learning that were developed effectively in terms of 70% of students taking the test of problem solving skills obtained a minimum score of 75 and achievement of learning completeness 75% problem solving ability tests and positive responses for Problem Based Learning based teaching materials for problem solving abilities developed.


Author(s):  
Sofnidar ◽  
Hartina ◽  
Kamid ◽  
Khairul Anwar

Prilaku belajar adalah suatu sikap y ang muncul dari diri siswa dalam menanggapi dan meresponi setiap kegiatan belajar mengajar yang terjadi. salah satu wujud dari prilaku adalah motivasi belajar. Menurut teori behavioristik, belajar adalah perubahan tingkah laku sebagai akibat adanya interaksi antara stimulus (rangsangan) dan respon (tanggapan). Stimulus yang diberikan guru dalam pembelajaran tertuang dalam rancangan aktifitas pembelajaran. Aktivitas pembelajaran merupakan kegiatan yang dirancang guru untuk mewujudkan dan atau menciptkan kondisi belajar siswa (stimulus). Pemilihan aktivitas belajar yang sesuai memungkinkan untuk terjadinya efektivitas pedagogis dalam mencapai tujuan pembelajaran, maupun dapat membentuk prilaku positif siswa (respon) dalam belajar. Desain pembelajaran berbasis outdoor-medelling mathematics memuat serangkain aktivitas kegiatan pembelajaran yang berbassis investigasi konteks masalah outdoor (masalah real life) dengan muatan konten materi modeling mathematics. Pada makalah ini akan membahas prilaku belajar dan bagaimana motivasi terbentuk melaui aktifitas kegiatan pebelajaran outdoor-medelling mathematics yang diklasifikasikan menjadi motoractivities mentalactivities, visualactivities, emotionalactivities, motoractivitie.Melalui metode kulitatif deskriptif, dengan mengambil 20 siswa kelas IX-B SMP N 1 Muaro Jambi yang mempunyai gaya belajar visual, auditorial, dan kinestetik. Setelah pelaksanaan pembelajaran, pengambilan data dilakukan melalui angket, dan lembar pengamatan beserta wawancara ke subjek penelitian. Hasil penelitian menunjukan bahwa aktivitas belajar dalam pembelajaran yang dapat memotivasi siswa belajar matematika adalah visualactivities sebesar 74,16%; motoractivities sebesar 96,67%; mentalactivities sebesar 71,66%; dan emotionalactivities sebesar 73,33%. Berdasarkan hasil analisis yang dilakukan aktivitas belajar dalam pembelajaran outdoor-medelling mathematics matematika yang paling dominan dapat memotivasi siswa belajar adalah motoractivities dengan persentasi 96,67% dengan kriteria sangat baik dan sangat memotivasi siswa belajar matematika dalam pembelajaran luar kelas. Indikatornya adalah melakukan percobaan. Kelebihan aktivitas belajar dalam pembelajaran outdoor-medelling mathematics adalah, aktivitas belajar lebih membuat siswa termotivasi untuk belajar matematika. Siswa menjadi lebih aktif dan interaksi dengan teman sesamanya semakin meningkat juga. Adapun kelemahan aktivitas belajar dalam pembelajaran luar kelas adalah sulit untuk siswa terfokus dalam aktivitas belajar yang sedang dilakukan.   Learning behavior is an attitude that arises from students in responding and responding to each teaching and learning activity that occurs. one form of behavior is learning motivation. According to behavioristic theory, learning is a change in behavior as a result of an interaction between stimulus (stimulus) and response (response). The stimulus given by the teacher in learning is contained in the design of learning activities. Learning activities are activities designed by the teacher to realize and or create the conditions for student learning (stimulus). Selection of appropriate learning activities allows for the occurrence of pedagogical effectiveness in achieving learning goals, and can form positive student behavior (response) in learning. Outdoor-based learning mathematics learning design contains a series of learning activities based on the context of outdoor problems (real life problems) with the content of modeling mathematics material. In this paper will discuss learning behavior and how motivation is formed through the activities of learning activities outdoor-modeling mathematics which are classified into mental activities, visual activities, emotional activities, motor activities. Through the descriptive qualitative method, taking 20 students of class IX-B Muaro Jambi Middle School 1 who have visual, auditory, and kinesthetic learning styles. after the implementation of learning, data retrieval was carried out through questionnaires, and observation sheets and interviews to the research subjects. The results showed that learning activities in learning that could motivate students to learn mathematics were visual activities at 74.16%, motor activities at 96.67%, mental activities at 71.66%, and emotional activities at 73.33 %%. Based on the results of the analysis carried out learning activities in mathematics outdoor-modeling mathematics learning the most dominant motivating students to learn is motor activities with a percentage of 96.67% with very good criteria and very motivating students to learn mathematics in learning outside the classroom. The indicator is to experiment. The advantages of learning activities in outdoor-modeling mathematics learning are that learning activities make students more motivated to learn mathematics. Students become more active and interactions with their peers also increase. The weaknesses of learning activities in learning outside the classroom is difficult for students to focus on the learning activities that are being done.


Author(s):  
Nazom Murio ◽  
Roseli Theis

Geometri adalah bagian matematika yang sangat dekat dari siswa, karena hampir semua objek visual yang ada di sekitar siswa adalah objek geometri, tetapi tidak semua siswa menyukai pembelajaran yang menyertakan gambar, sehingga memungkinkan siswa mengalami kesulitan dalam belajar geometri. Tujuan dari penelitian ini adalah untuk menggambarkan kesulitan belajar siswa berdasarkan karakteristik Lerner dalam menyelesaikan pertanyaan geometri. Jenis penelitian ini adalah penelitian deskriptif kualitatif. Subjek penelitian adalah siswa dengan kepribadian wali yang mengalami kesulitan belajar di kelas IX A SMP N 30 Muaro Jambi. Instrumen yang digunakan dalam penelitian ini adalah penulis sendiri, lembar tes klasifikasi kepribadian, lembar tes kesulitan belajar, dan pedoman wawancara. Hasil penelitian menunjukkan siswa dengan kepribadian wali yang mengalami kesulitan belajar, 100% mengalami kelainan persepsi visual, di mana siswa mengalami kesulitan dalam menentukan seperti apa bangun datar pada masalah tersebut. 60% mengalami kesulitan mengenali dan memahami simbol, di mana siswa melihat simbol "//" sebagai simbol untuk kesesuaian. Serta 40% mengalami kesulitan dalam bahasa dan membaca, di mana siswa kesulitan dalam memahami pertanyaan yang diberikan.   Geometry is a very close mathematical part of the student, because almost all visual objects that exist around the students are objects of geometry, but not all students like learning that includes images, thus allowing students to have difficulty in learning geometry. The purpose of this research is to describe students' learning difficulties based on Lerner's characteristic in solving the geometry question. This type of research is descriptive qualitative research. Research subjects were students with guardian personality who had difficulty studying in class IX A SMP N 30 Muaro Jambi. Instruments used in this study are the authors themselves, personality classification test sheets, learning difficulties test sheets, and interview guidelines. The results showed students with guardian personality who experienced learning difficulties, 100% experienced visual perception abnormalities, where students have difficulty in determining what kind of flat wake on the matter. 60% have difficulty recognizing and understanding symbols, where students see the symbol "//" as a symbol for conformity. As well as 40% have difficulty in language and reading, where students difficulty in understanding the given question.


2020 ◽  
Vol 1 (2) ◽  
pp. 9
Author(s):  
Yunita Mansyah Lestari ◽  
Suzy Yusna Dewi ◽  
Aulia Chairani

ABSTRAK   Alexithymia ditandai dengan ketidakmampuan dalam mengenali dan mengekpresikan emosi serta pemikiran yang berorientasi eksternal sehingga mereka memiliki hubungan interpersonal yang buruk. Remaja dengan alexithymia cenderung menjadi kecanduan media sosial.Penelitian ini bertujuan untuk mengetahui hubungan antara Alexithymia terhadap kecanduan media sosial pada remaja di Jakarta Selatan. Subjek penelitian adalah remaja yang berusia 13-19 tahun dan tinggal di Jakarta selatan. Pengambilan data menggunakan metode consecutive sampling dan snowball sampling dengan menyebar kuesioner menggunakan link googleform. Jumlah subjek penelitian sebanyak 207 orang (41 = laki-laki, 166 = perempuan). Skala yang digunakan adalah Toronto Alexithymia Scale (TAS-20) dan Social Media Disorder (SMD). Analisa data menggunakan metode chi-square pada SPSS 25. Hasil penelitian didapatkan 85 orang mengalami alexithymia, 88 mengalami kecanduan dan 62 orang mengalami alexithymia dan kecanduan media sosial. p-value didapatkan 0,000. Hal ini berarti terdapat hubungan antara Alexithymia dengan Kecanduan Media Sosial pada remaja di Jakarta Selatan. Kata Kunci :Alexithymia, Kecanduan Media Sosial, Remaja     ABSTRACT   Alexithymia is characterized by an inability to recognize and express emotions and have external oriented thoughts so that they have poor interpersonal relationships. Teenagers with alexithymial tend to become addicted to social media. This study aims to determine the relationship between Alexithymia towards social media addiction in adolescents in South Jakarta. The research subjects were adolescents aged 13-19 years and lived in south Jakarta. Retrieval of the data was using consecutive sampling and snowball sampling method by distributing questionnaires using the googleform link. The number of research subjects was 207 people (41 = men, 166 = women). The scale was used is the Toronto Alexithymia Scale (TAS-20) and Social Media Disorder (SMD). Data analysis using the chi-square method in SPSS 25. The results showed that 85 people had alexithymia, 88 were addicted and 62 people had alexithymia and were addicted to social media. p-value obtained is 0,000. This means that there is a relationship between Alexithymia and Social Media Addiction in adolescents in South Jakarta. Keyword : Adolescents, Alexithymia, Social Media Addiction


2019 ◽  
Vol 5 (2) ◽  
pp. 104-111
Author(s):  
Dian Puspita Eka Putri

This study aims to review  the effectiveness of using android-based multimedia learning  to improve achievement cognitive learning outcome of students. The research method is the analysis of field studies. The focus in this research is Multimedia which can influence cognitive learning outcomes of students. data obtained in this study from the literature and direct field observations. The research subjects were high school students in Yogyakarta. The result of analysis and discussion of research indicate that there is the influence of multimedia learning to increase student achievement, which is indicated by increasing post-test result  than before  not using multimedia learning. Posttest value is greater than pretest.


EDUKASI ◽  
2016 ◽  
Vol 14 (2) ◽  
Author(s):  
Hery Suharna ◽  
Agung Lukito Nusantara ◽  
I Ketut Budayasa

The research reveals a profile of reflective thinking of elementary school students in problem solving fractions based on his mathematical abilities. The instruments used in data collection is Test Problem Solving (TPM), interview. Selection of research subjects in a way given test is based on the ability of mathematics, namely mathematical skills of high, medium and low and further categorized and taken at least 2 people to serve as subjects. The research objective is: describe the profile of reflective thinking that math skills of elementary school students High, medium, and low. Based on the results of the study found reflective thinking profile and high ability students were as follows: (a) the step to understand the problems students have information/knowledge or data that is used to respond, comes from inside (internal) and can explain what has been done; (B) the planned step problem solving students have information/knowledge or data that is used to respond, comes from inside (internal) and can explain what has been done; (C) on measures to implement the plan in terms of information/knowledge or data used by students to respond, comes from inside (internal), could explain what has been done, realized the error and fix it, and communicate ideas with a symbol or image, and (d) the checking step back, namely information/knowledge or data that is used by students to respond, comes from inside (internal) and can explain what has been done. Profile of reflective thinking ability students lowly mathematics, namely: (a) at the stage of understanding the problem, students can determine known and asked in the problem, but the students' difficulties to explain the identification of the facts that have been done, the students explained the understanding vocabulary, and feel of existing data the matter is enough; (B) at the stage of implementing the plan, the students explained, organize and represent data on the issue, describes how to select the operation in solving a problem though students are not sure, and students' difficulty in explaining what he had done; (C) at the stage of implementing the plan, the student has information on calculation skills although the answer is not correct. Students difficulty in explaining about the skills calculations have been done, trying to communicate their ideas in the form of symbols or images, even if students rather difficult to describe, and realized there was an error when using a calculation skills and improve it; (D) at the stage of check, students' difficulties in explaining whether obtained estimates it approached, it makes senseKeywords: reflective thinking, problem solving, fractions, and math skills.


Author(s):  
Antonius Prasetyo Hadi

: The use of learning media is one of the critical success factors in higher education, therefore an educator must have innovation to use of learning media. The purpose of this research is to develop learning media based on the Inspiring Suit 8 on arbitration material courses of theoretical and practice for Volleyball 1 academic year 2018/2019 at IKIP Budi Utomo Malang. The existence of media will be a big successful support in learning process, so that students do not feel boredom because of the weaknesses of the lecturers, in which they are unable to provided good learning variation or even have difficulty in conveying or transferring knowledge. The research was descriptive qualitative design. The research subjects were students of Physical Education, Health, and Recreation Study Program who took volleyball theory and practice courses in the even semester academic year 2018/2019. The instruments used were the media expert review questionnaire, the learning expert questionnaire, and the trial analysis questionnaire. The questionnaire will be analyzed to see the feasibility of the developed media. Based on the data results review by media expert volleyball, media learning expert and field trials, it can be concluded that media developed is useful in learning process. In addition, it is used to provide independent motivation, which can be used in lesson for students.


2020 ◽  
Vol 14 (1) ◽  
pp. 45-60
Author(s):  
Yashinta Yashinta ◽  
Dwi Hurriyati

This study aims to determine the relationship of loneliness with problematic internet use on boarding students on Silaberanti street in Siantan jaya Opposite Ulu 1 Palembang city. Research subjects numbered 220 people using random sampling methods. Data was collected using a 60 item problematic internet use scale and a 60 item loneliness. Realibility is generated on scale of problematic internet use of 0,955 and loneliness of 0,946.Hypothesis testing uses product moment correlation analysis techniques. Hypothesis test results showed a positive relationshif between loneliness with problematic internet use on boarding students on Silaberanti street in Siantan jaya Opposite Ulu 1 Palembang city r= 0,684 with a significance level of 0,000 (p<0,01). Loneliness in this study made an effective contribution of 46,8% to problematic internet use which can be seen from the coefficient of determination (r²) that is equel to 0,468.


2016 ◽  
Vol 5 (2) ◽  
pp. 320
Author(s):  
Siwi Enggar Makarti

The background of this study is the low learning outcomes IPS. It is characterized by the acquisition of the average value of social studies students at 59.10 with the percentage of students learning completeness amounted to 50.00% from 20 students. This research is a classroom action research (PTK) which aims to improve student learning outcomes through the implementation of strategies IPS Contextual Teaching and Learning (CTL). This study was conducted in 010 primary schools Silikuan Ukui Hulu subdistrict, with research subjects fifth grade students with a number of 20 students. This study was conducted by two cycles. The data used in this study are the activities of teachers, student activities, and learning outcomes are collected using the observation technique teacher and student activities and written tests, while the analytical techniques used in this research is descriptive analysis. The study states that the acquisition of the activities of teachers and students and learning outcomes in each cycle has increased. This is supported by: (1) the percentage of activity the teachers in the first cycle of the first meeting by 45%, in the first cycle of meetings II percentage teacher activity by 52%, the percentage of teacher activity in the second cycle of the first meeting by 65%, the percentage of teacher activity in the second cycle meeting II by 75%; (2) the percentage of student activity in the first cycle of the first meeting by 49%, in the first cycle of meetings II percentage of student activity by 60%, the percentage of the activity of students in the second cycle the first meeting by 63%, the percentage of student activity on the second cycle of meeting II by 79% ; (3) learning outcomes in basic score of 59,10.Dan which reached KKM 65 only 10 students or (50%). The first cycle of the average value obtained by the students reached 63.6. Students who achieve KKM there are 13 students or 65 (65%). Cycle II average value obtained students achieve value above 67 means the KKM. Students who reached the last 16 students or (80%).


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