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All Journal BERKALA FISIKA Sainstek SEMIRATA 2015 Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Ilmiah Pendidikan Fisika Spektra: Jurnal Fisika dan Aplikasinya JURNAL EKSAKTA PENDIDIKAN (JEP) Jurnal Teori dan Aplikasi Fisika Abdi Dosen : Jurnal Pengabdian Pada Masyarakat Pelita Eksakta Jurnal Humanities Pengabdian Kepada Masyarakat Pillar of Physics Education : Jurnal Berkala Ilmiah Pendidikan Fisika Pillar of Physics: Jurnal Berkala Ilmiah Fisika Journal of Climate Change Society

Yenni Darvina

Universitas Negeri Padang

Author-ID : 2523034

Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Environmental Science Materials Science & Nanotechnology Mathematics Physics Public Health Social Sciences Other

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IMPLEMENTASI BUKU AJAR FISIKA BERMUATAN NILAI-NILAI KARAKTER PADA KELAS XI SEMESTER 1 DI SMA KOTA PADANG Darvina, Yenni; Masril, Masril; Murtiani, Murtiani
SEMIRATA 2015 Prosiding Bidang Fisika
Publisher : SEMIRATA 2015

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (191.118 KB)

Implementasi pendidikan karakter di sekolah dilaksanakan secara terintegrasi melalui proses pembelajaran. Agar pelaksanaannya lebih optimal, harus ditunjang oleh perangkat pembelajaran bermuatan nilai-nilai karakter.Â Namun kenyataannya di sekolah perangkat pembelajaran yang ada belum optimal, terutama dalam bentuk buku ajar yang bermuatan nilai-nilai karakter. Oleh sebab itu perlu adanya buku ajar bermuatan nilai-nilai karakter yang valid, praktis dan efektif untuk digunakan. Untuk menghasilkan buku ajar yang berkualitasÂ makaÂ dilakukan penelitian Pengembangan model 4-D dengan tahapan pendefinisian (define), perancangan (design), pengembangan (development), dan penyebaran (dessiminate). Sebelum dilaksanakan tahap akhir berupa penyebaran, terlebih dahulu dilakukan uji validitas oleh validator. Setelah diperoleh Buku ajar yang valid selanjutnya dilakukan uji terbatas terhadap produk Buku ajar bermuatan nilai-nilai karakter yang dibuat, sehingga diperoleh efektifitas dan praktikalitasnya. Uji terbatas dilakukan dengan statistik one group pretest-postest design. Untuk mengetahuiÂ efektifitasnya digunakan tes Hasil Belajar yang diberikan 2 kali yaitu sebelum uji terbatas (pretest) dan setelah uji terbatas (Postest). Praktikalitas buku ajar diperoleh dari angket yang disebarkan pada guru yang terpilih sebagai sampel. Dari penelitian yang telah dilakukan diperoleh rata-rata nilai praktikalitas 86,1 (kategori sangat baik) dan rata-rata nilai efektifitasnya 61,74 % (kategori berpengaruh kuat). Katakunci: nilai karakter, bahan ajar, penelitian pengembangan

Rancangan Laboratorum Virtual untuk Pembelajaran Fisika SMA Masril, Masril; Hidayati, Hidayati; Darvina, Yenni
JURNAL EKSAKTA PENDIDIKAN (JEP) Vol 2 No 1 (2018): JEP : Jurnal Eksakta Pendidikan
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

One of the problems found in the implementation of the curriculum of 2013 is not all competency skills can be performed well. Therefore, to overcome these problems, virtual laboratory designed to competencies skill  of physics. One of the design objectives virtual laboratory is to improve the quality of education and learning in physics in high school. The method used in this study is a research method development four D model with the definition phase , design phase , development phase, and dissemination phase.  Research has reached the stage of development and has been tested valid specialist. The instrument used in the research is a questionnaire consisting of: 1) the material substance; 2) The display of visual communication; 3) instructional design; 4) the use of software;  and 5) Linguistic. The results obtained to test the validity in general has been very good category (85.6), so that the design of virtual labs designed can already be used in high school.  

Efektivitas Lembar Kerja Siswa Virtual Laboratory pada Materi Gerak Lengkung di Kelas X SMAN Hidayati, Hidayati; Masril, Masril; Darvina, Yenni; Zakiya, Zara
JURNAL EKSAKTA PENDIDIKAN (JEP) Vol 3 No 1 (2019): JEP : Jurnal Eksakta Pendidikan
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

The purpose of this study was to determine the effectiveness of virtual laboratory worksheets on parabolic motion material and circular motion in class X of SMAN 5 Padang. To achieve the research objectives, quasi   experiments were used and one group of pretest-posttest was research design. The population is students of class X MIPA at SMAN 5 Padang who are registered in the 2018/2019 Academic Year. Simple random sampling technique is used for sampling and obtained by class X MIPA 1 as a sample. The research data includes data on attitudes, knowledge and skills competencies. Attitude competency data is obtained through attitude assessment observation sheets, then described and analyzed in graphical form. Knowledge competency data was obtained through pretest and posttest. Skills competency data are obtained through performance assessment sheets. Knowledge and skills competency data were analyzed using correlated t-test. Based on data analysis, it can be concluded that virtual laboratory worksheets on parabolic motion material and circular motion are effectively used in learning which can be seen from increasing student learning competencies in aspects of knowledge and skills after using virtual laboratory worksheets. As well as attitudinal competence shows students have done a very good attitude during learning, marked by an increase in the average value of student attitudes at each  meeting

Efek konsentrasi Prekursor Terhadap SIFAT FISIK Film Tipis BASRTIO3 (BST) SRUKRUR MFM DAN MFS yang Ditumbuhkan dengan SPIN COATING Darvina, Yenni
Sainstek Vol 11, No 1 (2008): Vol. XI No. 1, September 2008
Publisher : Lembaga Penelitian Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (276.715 KB)

An BST precursor was synthesized by mixing Barium acetate 99,9%, Strontium acetate 99,99% , Titanium isopropoxide 99,999% in 2-methoxyethanol 99,9% and acetic acid glasia 100% at 120oC along 3 hours. The BST precursor concentration were 0.1 M and 0.5 M.Â By employing CSD method, the BST precursor was spin coated on p-type Si (100) substrate at 3000 rpm for 30 seconds and pyrolyzed at 130oC at 10 minutes to obtain BST thin films. The BST thin films were annealed for 15 hours at 1000oC. The BST thin films structure were MFM and MFS, characterized their physical properties. It was found that grain size and thickness for the MFM structure at the BST 0,1 M were < 0.3Î¼m and 0.6 Î¼m., AndÂ the BST 0.5 M were 0.5â€“1.0 Î¼m and 0.9 Î¼m. Grain size and thickness for the MFM structure at the BST 0.1 M were < 0.3Î¼m and 0.6 Î¼m, for BST 0.5M were 0.5â€“1Î¼m and 0.8 Î¼m .Latis constant 3.936 Çº. Composition of BST thin films wasÂ same as BST precursor. Key words : Ferroelektrik, BST, Spin Coating.

RANCANG BANGUN SISTEM PENGUKURAN SUHU DAN KELEMBABAN UDARA MENGGUNAKAN SENSOR SHT75 BERBASIS INTERNET OF THINGS DENGAN DISPLAY SMARTPHONE Iqbal, Muhammad; Yulkifli, Yulkifli; Darvina, Yenni
BERKALA FISIKA Vol 22, No 3 (2019): Berkala Fisika Vol. 22 No. 3 Tahun 2019
Publisher : BERKALA FISIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (463.171 KB)

Temperature and humidity are important weather parameters for large purposes, such as agriculture, aviation, tourism, etc. The Indonesia's Meteorology, Climatology and Geophysics Agency is converting from conventional measuring instruments into digital systems. This research aims to determine the performance and design specifications of the internet of things for measuring the air temperature and humidity using the SHT75 sensor with a smartphone display. The system was built from SHT75 module sensor as temperature and humidity sensors with NodeMCU ESP8266 microcontrollers that can access the internet network so that data can be sent to the ThingSpeak. Data server from ThingSpeak appeared on smartphones using AppInventor. The instrument builder circuit was in a 5x5x10 cm3 box containing the SHT75 sensor,the NodeMCU ESP8266, the ON/OFF switch, the RESET button, and the adapter to connect to the source. It was found that results of the design specifications of the measuring instrument has a high accuracy and precision. The accuracy of measuring instruments for air temperature is 98.89% and for air humidity is 99.41%. The precision of measuring instruments for airtemperature and humidity are 99.73% and 99.08%, respectively.Keyword : SHT75, NodeMCU ESP8266, Internet of Things, ThingSpeak, App Inventor

Rancang Bangun Sistem Pengukuran Tekanan Udara Menggunakan DT-Sense Barometric Pressure Berbasis Internet of Things dengan Display Smartphone Indah Tri Handini; Yulkifi Yulkifi; Yenni Darvina
Jurnal Teori dan Aplikasi Fisika Vol 8, No 1 (2020): Jurnal Teori dan Aplikasi Fisika
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtaf.v8i1.2257

Weather be a very important thing to observe. One of the weather paramaters is air pressure. The air pressure on a surface is the force given to a surface or area by the air column above the surface. This research designed an air pressure gauge using DT-Sense Barometric Pressure which used to measure the value of the air pressure based of Internet Of Things with measurement result displayed on a smartphone. For data retrieval techniques were done by directly and indirectly. The amount that carried out directly is air pressure, while the indirect amount is the precision and the accuracy of air pressure measurements. The result of this research was the system performance specifications consist of mechanical systems that were supported by electronic systems. The precision measurements were done by comparing the results from Digital Barometer with the air pressure gauge that has been made. The percentage of average erros that obtained was 0.02965%, the relative precision average on the system was 0.99955, and the precision percentage of the tool was very good at 99.995%. The accuracy measurements were done by measuring the air pressure under the same conditions. The measurements were done by 10 times with reading on a constant standard measuring tools. The average accuracy of the system was 0.99 with an average standard deviation of 0.7 and relative errors average 0.0098%.

Photography Workshop for School Dropout Youth in Nagari Batu Bulek, North Lintau Buo District, Tanah Datar Regency Yenni Darvina Yulidar
Pelita Eksakta Vol 5 No 1 (2022): Pelita Eksakta Vol. 5 No. 1
Publisher : Fakultas MIPA Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/pelitaeksakta/vol5-iss1/165

Tourism in the era of the COVID-19 pandemic could be suspended if entrepreneurs, institutions, ormanagers do not immediately switch to using digital technology. Promotion of tourism, offers,destinations, hotels, culinary, souvenirs, and everything related to tourism requires digital technology.Through this technology, photos or videos related to tourism promotion can be presented. Photos orvideos that are made professionally and presented briefly, concisely, and precisely, are the mainattraction for tourists. Therefore, the presence of a professional photographer is needed. Puncak Pato isthe second most favored destination in Tanah Datar Regency, after the Pagaruyung Traditional House.This tourist location is located in Nagari Batu Bulek, North Lintau Buo District, Tanah Datar Regency,West Sumatra. In this village there is a group of out of school youth. They don't have permanent jobs.This youth group has a strong interest in photography, but does not yet have sufficient competence.Through the Community Partnership Program, the Community Service Group of the Faculty ofMathematics and Natural Sciences UNP provides workshops to improve their competence inphotography. The results of the pre-test and post-test for the knowledge and skills of the participants,which consisted of 7 people, showed that there had been an increase in the competence of theparticipants. It is hoped that they can become professional photographers who are the spearhead of thepromotion of Puncak Pato and other tours in Tanah Datar Regency throughout the world.

Problem-Based Workshop For Improving Product Diversification Of The Kolang-Kaling Process Desnita Desnita; Iryani Iryani; Yenni Darvina
Jurnal Humanities Pengabdian Kepada Masyarakat Vol 1 No 2 (2020): Journal Humanities : Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Negeri Padang Press, Pusat Kajian Pendidikan Olahraga, Kesehatan dan Rekreasi, Fakultas Ilmu Keolahragaan, Univeristas Negeri Padang.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jha.0102.2020.10

Tanah Datar Regency is known as one of the abundant fruit-producing areas of Kolang-Kaling. According to an interview by the PKM team with one of the heads of the women farmer groups, it was revealed that every week as many as 3 tons of Kolang-kaling fruit can be harvested. However, they only process 10% traditionally (boiled, peeled, and sold). The community does not have sufficient competence to apply technology in processing these plantation products into ready-to-eat food. As a result of the agreement with the two Cempaka Mekar and Teratai Women's Farmer Groups, also with the approval of the village head , a community partnership activity was agreed upon for these two farmer groups. With the aim of increasing the competence of women who are the target of activities in the application of technology for processing kolang-kaling fruit . Increasing competence is expected to have an impact on the welfare of the target community. In order to achieve the objectives, a problem-based workshop model was chosen, where the workshop activities were conducted based on partner problems, with an andragogical approach

Analisis miskonsepsi peserta didik dalam memahami materi gerak lurus dan gerak parabola pada kelas X SMAN 1 Padang Aifah Fauziah; Yenni Darvina
PILLAR OF PHYSICS EDUCATION Vol 12, No 1 (2019)
Publisher : Universitas Negeri Padang

The purpose of research analyzes misconceptions of students in understanding the material stairght motion and parabolic motion in class X SMAN 1 Padang. This type of research was descriptive with a quantitative approach. The population this research was all students class X SMAN 1 Padang who were enrolled in the 2018/2019 school year. The sampling in this research taken with purposive sampling technique. The sample in this research consisted of five classes. The research instrument was a multipe choice FCI test question with open reasons accompanied by CRI. The result of anlyziz data gotten that avrage of misconceptions was 67,5%, unknowing was 22,86%, knowing was 8,42%, knowing but not sure was 1,29%. The froms of misconception experienced by students are: 1) heavy bals faster than light balls, 2) the greater the gravitational force if it approaches the ground or the surface of the earth, 3) the acceleration of the beam b is greater than the beam a because when beam a was on the five line beam B was on seven line. The causes of misconceptions are associative thinking, humanistic thinking, wrong intuisi, incomplete/ wrong reasoning, cognitive development, students abilities, and student experience.

Analisis uji validitas LKS berorientasi HOTS dalam model inkuiri terbimbing pada materi fluida statik di kelas XI fisika SMA/MA Nurhijjah Tiur S; Silvi Yulia Sari; Yenni Darvina
PILLAR OF PHYSICS EDUCATION Vol 12, No 4 (2019)
Publisher : Universitas Negeri Padang

Learning physics cannot be carried out simply by memorizing, listening, and seeing without experiencing. Physics learning requires students to be able to think critically, creatively, have problem solving skills, and be able to make decisions. In order for students to get meaningful lessons in physics, they need to find their own concepts to be understood. This can be achieved by using an appropriate learning model. One learning model that can be used is guided inquiry. This study aimed to determine the validity of HOTS-oriented worksheets in the guided inquiry model of static fluid learning material. This type of research was Research and Development (R&D). The development steps carried out by Borg and Gall. The instrument used in the study was the validity test sheet. The data analysis technique used is descriptive statistical analysis.Based on the data analysis, the results show that the HOTS-oriented worksheet in the guided inquiry model on static fluid learning material has a high validity value of 86.65. It means, the learning materials are ready to use in learning process.

Co-Authors - Rahmi - Ramli - Ramli - Ramli - Ramli - Syakbaniah - Yulkifli - Yulkifli . Murtiani . Murtiani Abdul Azis Ade Aprilia Ade Usra Berli Afdatul Zikri Ahmad Fauzi Aifah Fauziah Akmam Akmam Alif Yulanda Putri Amali Putra Amali Putra Ambran Hartono amira tiara wulandari Andari Oktafiani Anisa Meysi Wardi Anofa Liona Aprilia Cahaya Ari Arfandi arifaldi arifaldi Asrad Hafizah Asrizal Asrizal Asrizal Atika Dwi Maharani Zuler Azura Carolina Harsani Bella Salsa Bella Sukma Putri Cici Ramayanti Dara Putri Pratama Desnita Desnita Desra Yarsina Dicko Maulana Syahdan Diffa Azilia Dila Alhumaira Dola Afriyenti Edi Sanjaya Elsa Imelda Elsa Okta Memori Elsa Rahmayuni everly aberta Fadhila Ulfa Jhora Fadillah Ulfah Fakhrur Rhozy Fanni Rahmatina Rahim Fanny Rahmatina Rahim Fatni Mutfit Febrian Syah Festiyed Firda Annisa Fitrah Ayu fitri rahmi Fitria Murti Fran Surya Andi Fredy Pratama Frima Suci Agustia Gina Fadilah NST Gusnedi Gusnedi Gusnedi Gusnedi Hamdi Rifai Hasya Syahmi Hazrati Ashel Hersha Hanifa Hidayati Hidayati Hidayati Hidayati Hidayati Hidayati Hilmi Rizki Anjani Hufri Hufri Indah Septia Ningsih Indah Tri Handini Indri Syukra Innes Andriani Iryani Iryani Ismathul Dinny Kasih Syirpia Khairunnisa Khairunnisa Letmi Dwiridal Lucya Sinurat Lusi Oktavia Masril Masril Masril Masril Masril Masril Masril Masril masril masril Mawardi Mawardi Melani Alvino Muhammad Ikmal Muhammad Rivai Murtiani Murtiani Murtiani Murtiani mutia faizah apriani Mutia Risma Mutia Yussavel Navis Nadia Ardianti Nadia Ramadhanty Nadila Putri Bungsu Nadya Aztifa Nadya Yunestika Naurah Nazifah Nia Nursurila Nidya Yulfriska Nidya Yulfriska novelia prima Nur Sahfitri Nurhasanah Nurhasanah Nurhijjah Tiur S Nurmala Sari Lubis Onny Gustira Pakhrur Razi Pratiwi Mailisa Prima Nora Ananda Puput Mulya Sari Pusri Mela Putra Adil Putri Diana Putri Dwi Sundari Putri Rasti Ramadhani Radha Firaina Rahma Tilla Dwi Lestari Rahma Yeni Rahmat Hidayat Rahmi Zulva Ramli Ramli Ramli Ramli Ramli Ramli Rara Nur Rida M.Y Ratnawulan . Renol Afrizon Resti Novela Revi Febrina Sari Ria Monica Rima Melani Putri Rio Anshari Riolin Putri Artiwi Riri Jonuarti Riri Raihannil Jannah rizka fauziah Rizki Rizki Romizah Marta Salma Amalia As Shidiq Shinta Kumala Silmi Hidayatullah03 Silvi Trisna Silvi Yulia Sari Siti Riva Darwata Slivi Yulia Sari Sonia Nur Riza Sovia Yulianti Srisa Oktaweri Suci Wahyuni Suryani Fadhilah Syafriani - - Syafriani Syafriani Syafriani Syafriani Syafriani Syafriani Syafrinaldi Syafrinaldi Tiwi Novalia Syahari Tri Agunaisy Tria Sukma Sandi Trio Junira Fernando Ully Nuraidina Ummiatul Fitri Vanessa Febta Sindani Varadila Sahanaya wahyu dilla abdullah Wahyudil Hayat wahyuni hafnisyah Wahyuni Satria Dewi Windri Suci Gaitari Yeni Mustika Sari Yogi Putra Yohandri Yolvi Oktaviani Yona Sri Mantia Yosi Febriani Yulkifi Yulkifi Yulkifli Yulkifli Yulkifli Yulkifli Yulkifli Yunita Ela Saputri Yuri Yanti Yurnetti Yurnetti Yurnetti Yurnetti Zakiya, Zara Zara Zakiya Zulhendri Kamus

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