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PENGEMBANGAN MODEL PEMBELAJARAN MALCOLM’S MODELING UNTUK MENINGKATKAN KETERAMPILAN BERPIKIR KRITIS DAN MOTIVASI BELAJAR SISWA Syarifah, Syarifah; Sumardi, Yosaphat
Jurnal Inovasi Pendidikan IPA Vol 1, No 2: Oktober 2015
Publisher : Program Pascasarjana, Universitas Negeri Yogyakarta (UNY)

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Abstract

Penelitian ini bertujuan untuk: (1) menghasilkan model pembelajaran fisika berbasis Malcom’s Modeling Method yang layak digunakan di sekolah, dan (2) mengetahui apakah model pembelajaran fisika berbasis Malcom’s Modeling Method dapat meningkatkan keterampilan berpikir kritis dan motivasi belajar siswa. Penelitian ini termasuk dalam ranah penelitian dan pengembangan (R&D). Prosedur pengembangan mengadaptasi dari prosedur pengembangan yang dikembangkan oleh Borg & Gall dengan langkah-langkah meliputi (1) penelitian dan pengumpulan data, (2) perencanaan, (3) pengembangan bentuk awal produk, (4) uji coba lapangan awal, (5) revisi hasil uji coba lapangan awal, (6) uji coba lapangan, (7) revisi hasil uji coba lapangan dan (8) diseminasi. Subjek uji coba lapangan awal terdiri atas 36 siswa kelas X MIA 6 di SMA N 7 Yogyakarta. Subjek uji coba lapangan pada kelas ekperimen terdiri atas 36 orang siswa kelas X MIA 1 dan pada kelas kontrol terdiri atas 34 orang siswa kelas X MIA 5 di SMA N 7 Yogyakarta. Instrumen pengumpulan data menggunakan soal untuk mengukur keterampilan berpikir kritis, angket untuk mengukur motivasi belajar, angket respon siswa dan lembar observasi keterlaksanaan pembelajaran. Teknik analisis data menggunakan uji MANOVA dengan taraf signifikansi 5%. Hasil penelitian menunjukkan bahwa model Malcom’s Modeling Method ditinjau dari sintaks, sistem sosial, prinsip reaksi, sistem pendukung dan dampak instruksional dan pengiring layak digunakan di sekolah dengan kategori sangat baik. Hasil uji MANOVA menunjukkan model Malcom’s Modeling Method dapat meningkatkan keterampilan berpikir kritis dan motivasi belajar siswa pada taraf signifikansi 5 %. Kata Kunci: Malcom’s Modeling Method, keterampilan berpikir kritis, motivasi belajar.   DEVELOPING A PHYSICS INSTRUCTION MODEL BASED ON MALCOLM’S MODELING TO IMPROVE CRITICAL THINKING SKILLS AND LEARNING MOTIVATION Abstract This research aims to (1) develop a physics instruction model based on Malcolm’s modeling method, which is eligible for school and (2) reveal if the physics instruction model based on Malcolm’s modeling method can develop the critical thinking skills and learning motivation of students. This research is research and development (R& D) adapting the developmental procedure of Borg and Gall consisting, of (1) research and information collecting, (2) planning, (3) developing preliminary form of product, (4) preliminary field testing, (5) main product revision, (6) main field testing, (7) operasional product revision, and (8) disseminating. The subjects of the preliminary field testing were 36 students of class X MIA 6, SMA N 7 Yogyakarta. The subjects of main field testing were 36 students of class X MIA1 as the  experiment class and 34 students of class X MIA 5 as the control class in SMA N 7 Yogyakarta. The data were collected using a test to measure the critical thinking, questionnaires to measure the learning motivation of the students, student response questionnaires and observation sheet. The data were analyzed using MANOVA with the significance level of 5%.The result of this research shows that the physics instruction model based on Malcolm’s modeling method in terms of syntax, social system, principles of reaction, support system, instructio-nal and nurturant effect is eligible for the school which is in a very good category according to the validator. The result of MANOVA shows that the model can be used to develop critical thinking skills and learning motivation Keywords: Malcolm’s Modeling Method, critical thinking skills and learning motivation
VISUALISASI ALlRAN UDARA DI SEKITAR SAYAP PESAWAT TERBANG Sumardi, Yosaphat
Jurnal Penelitian Saintek Vol 8, No 2 (2003): Oktober 2003
Publisher : Jurnal Penelitian Saintek

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Abstract

This research is performed with objectives: (I) to show the patterns of velocity field  contour of airflow around the wings of subsonic plane, (2) to show factors  that influence these patterns,  and (3)  to explain their application in flight  engineering. The patterns  of velocity field contour  of  airflow  are  visualized  by  using  numerical  method  in Femlab software. Varying the velocity of airflow, the angle of attack, and the cross section form  of wings shows the visualization of these patterns.  The results of research show that the patterns  of velocity field  contour of airflow around the wings of subsonic plane may be circulation form.  Factors that influence these patterns of contour are the velocity of airflow, the attack angle of wings, and the cross section form  of wings. These three factors  determine lift coefficient and dragcoefficient.  In  commercial flight   it  is  used  airfoil  wings  that  areequipped by rear flaps on the trail edge of wings. These rear flaps canbe lowered of raised to adjust the cross section of airfoil. The slotsetting in the leading edge of wings can reduce the drag coefficient.Accordingly.fuel  efficiency andflight safety can be controlled.Key words: visualization, airflow, wings of plane.
PENGGUNAAN MICROSOFT EXCEL DALAM ANALISIS DATA EKSPERIMEN PADA PEMBELAJARAN FISIKA Sumardi, Yosaphat
Jurnal Cakrawala Pendidikan No 2 (2002): Cakrawala Pendidikan edisi Juni 2002, Th. XXI, No. 2
Publisher : LPPMP Universitas Negeri Yogyakarta

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Abstract

Microsoft Excel is one of the application programs calledspreadsheets, which enable users to supply data and instructionsin the form of commands and formulas to make the desired computationsA spreadsheet is nbt a computer langage used to writea program, it is an application program with which a user canorganize procedures for making calculations in a tabular formMicrosoft Excel is a powerhl program that can be used toanalyze data of an experiment in physics This applicationprogram is quite easy lu use and it is supported by adequate internalutilities for making calculations and graphs.Many kinds of data from experiments in physics can be analyzedwith the help of the application program Microsoft Excel.Various calculations can be done rapidly and easily by putting touse the internal hnctions in this application program An analysisfitting a curve to batches of experimental data can also bedone by using the graph utility
Penerapan Model Pembelajaran OPEK Fisika pada Materi Suhu dan Kalor dan Pengaruhnya terhadap Practical Skill Siswa SMA Afriyanti, Afriyanti; Sumardi, Yosaphat
Prosiding SNFA (Seminar Nasional Fisika dan Aplikasinya) Prosiding SNFA (Seminar Nasional Fisika dan Aplikasinya) 2017
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (700.393 KB) | DOI: 10.20961/prosidingsnfa.v2i0.16348

Abstract

Abstract:. The contribution of physics instruction in the schools to face the ASEAN Economic Community can be realized by applying the instruction model that focus on the theoretical approach and practical approach. OPEK Physics instruction model is the instruction model based on  practical approach by stimulating the practical skills of students. This study aims to examine the effect of the use of OPEK Physics instruction model on temperature and heat material to increase practical skill of the high school students. This study was conducted at SMAN 7 Yogyakarta by using pretest-posttest control group design. Practical skill  of students are measured by tests and observations sheet. The results of this study is that there is a significant difference in the improvement of practical skill of the students who are taught by using OPEK Physics instruction model those who are taught not by using this intruction model.   Abstrak: Kontribusi pembelajaran fisika di sekolah dalam menghadapi Masyarakat Ekonomi ASEAN dapat diwujudkan dengan menerapkan model pembelajaran yang mengedepankan pendekatan teoritis dan pendekatan praktik. Model pembelajaran OPEK Fisika merupakan model pembelajaran yang berbasis pendekatan praktik dengan menstimulus practical skill siswa. Penelitian ini bertujuan untuk menguji pengaruh penggunaan model pembelajaran OPEK Fisika pada materi suhu dan kalor terhadap peningkatan practical skill siswa SMA. Penelitian ini dilakukan di SMAN 7 Yogyakarta dengan menggunakan desain penelitian pretest-posttest control group design. Practical skill  siswa diukur dengan tes dan observasi. Hasil penelitian menunjukkan bahwa terdapat perbedaan peningkatan practical skill yang signifikan antara siswa yang dibimbing dengan model pembelajaran OPEK Fisika dan siswa yang tidak menggunakan model tersebut.
DOSE ANALYZE OF BORON NEUTRON CAPTURE THERAPY (BNCT) AT SKIN CANCER MELANOMA USING MCNPX WITH NEUTRON SOURCE FROM THERMAL COLUMN OF KARTINI REACTOR Rosidah, Siti; Sardjono, Yohannes; Sumardi, Yosaphat
Indonesian Journal of Physics and Nuclear Applications Vol 2 No 3 (2017)
Publisher : Fakultas Sains dan Matematika Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (629.875 KB) | DOI: 10.24246/ijpna.v2i3.111-123

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This research aims to determine the amount of radiation dose rate that can be accepted and the irradiation time that is required from Boron Neutron Capture Therapy (BNCT) cancer therapy to treat melanoma skin cancer. This research used the simulation program, MCNPX by defining the geometric dimensions of the tissue component, and describing the radiation source that were used. The outputs obtained from the MCNPX simulation were the neutron flux and the neutron scattering dose that came out from the collimator. The value of neutron flux was used to calculate the dose which comes from the interaction between the neutron and the material in the cancer tissue. Based on the results of the research, the dose rate to treat cancer tissue for boron is 10 μg/g of tumor, which translates to about 0.019241 Gy/second and  requires 25.98 minutes of irradiation time, 15 μg/g of tumor translates to 0.021854 Gy/second and requires 2.,87 minutes, 20 μg/g of tumor translates to 0.022902 Gy/second and requires 21,83 minutes, 25 μg/g of tumor translates to 0.0271275 Gy/second and requires 18.43 minutes, 30 μg/g of tumor translates to 0.0297658 Gy/second and requires 16.79 minutes, and 35 μg/g of tumor translates to 0.0343472 Gy/second and requires 14.55 minutes . The irradiation time needed for cancer tissue is shorter when boron concentration greater at the cancerous tissue.
Interpretasi Struktur Bawah Tanah pada Sistem Sungai Bribin dengan Metode Geo Aziz, Khafidh Nur; Sumardi, Yosaphat; Darmawan, Denny; Wibowo, Nugroho Budi
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 6, No 01 (2016): IJAP VOLUME 06 ISSUE 01 YEAR 2016
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v6i01.1796

Abstract

This research was aimed to determine the distribution pattern of magnetic field anomaly and to identify the lithology of underground structure in Bribin Karst using geomagnetic method. Research location was Semanu Sub-district, Gunungkidul Regency at UTM coordinate of 464061 mT-464929 mT and 9111097 mU-9111970 mU. The data were taken using G-5 Proton Precession Magnetometer (PPM) by looping method. The result showed that the distribution pattern of the magnetic field anomaly in Karst Bribin has value of 330 nT - 530 nT and anomaly values reflecting the system of Bribin River has value of 400 nT-460 nT. The lithology of underground structure in Karst Bribin has susceptibility value of -0.069 (in SI) - 0.0661 (in SI) with depth 200 m associated with limestone, tuff, gypsum, rock salt, and minerals calcite and anhydrite and the lithology associated with the system of Bribin River has susceptibility value -0.069 (in SI) associated with gypsum, rock salt, and minerals anhydrite.
DESAIN TERAS DAN BAHAN BAKAR PLTN JENIS HTR-PBMR PADA DAYA 50 MWe DENGAN MENGGUNAKAN PROGRAM SRAC2006 Caraka Putra, Bima; Sumardi, Yosaphat; Sardjono, Yohannes
Jurnal Pengembangan Energi Nuklir Vol 16, No 1 (2014): Juni 2014
Publisher : Pusat Kajian Sistem Energi Nuklir, Badan Tenaga Nuklir Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (286.82 KB) | DOI: 10.17146/jpen.2014.16.1.2559

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ABSTRAK DESAIN TERAS DAN BAHAN BAKAR PLTN JENIS HTR-PBMR PADA DAYA 50 MWe DENGAN MENGGUNAKAN PROGRAM SRAC2006. Penelitian ini bertujuan untuk mengkaji desain teras dan bahan bakar PLTN jenis HTR-PBMR (HIGH TEMPERATURE REACTOR - PEBBLE BED MODULAR REACTOR) 50 MWe dari keadaan Beginning of Life (BOL) sampai Ending of Life (EOL) dengan masa operasi 8 tahun. Parameter yang dianalisis dalam penelitian ini adalah distribusi suhu di dalam teras, persen pengkayaan U235, komposisi bahan bakar, kekritisan, dan koefisien reaktivitas suhu teras. Penelitian dilakukan dengan menyiapkan data parameter desain teras antara lain densitas nuklida, dimensi bahan bakar dan teras, dan distribusi suhu aksial teras. Paket program SRAC2006 digunakan untuk mendapatkan nilai faktor multiplikasi effektif (keff) teras dari data input yang telah disiapkan. Hasil penelitian menunjukkan nilai kekritisan teras berbanding lurus dengan penambahan pengkayaan U235. Pengayaan optimum tanpa penggunaan burnable poison didapatkan pada nilai 10,125% dengan reaktifitas lebih sebesar 3,12% pada BOL. Penambahan burnable poison Gd2O3 didapat nilai optimumnya sebesar 12 ppm dengan nilai reaktifitas lebih pada BOL sebesar 0,38%. Untuk penggunaan Er2O3 nilai optimumnya adalah 290 ppm dengan reaktifitas lebih 1,24% pada saat BOL. Koefisien reaktivitas suhu teras tanpa burnable poison dan penggunaan Gd2O3 dan Er2O3 bernilai negatif yang menunjukkan sifat inherent safety-nya. Kata kunci: desain, teras, bahan bakar, PLTN, SRAC2006. ABSTRACT DESIGN OF 50 MWe HTR-PBMR REACTOR CORE AND NUCLEAR POWER PLANT FUEL USING SRAC2006 PROGRAMME. This research aims to assess the design of core and fuel of nuclear power plant type High Temperature Reactor-Pebble Bed Modular Reactor 50 MWe from the Beginning of Life (BOL) to Ending of life (EOL) with eight years operating life. The parameters that need to be analyzed in this research are the temperature distribution inside the core, quantity enrichment of U235 , fuel composition, criticality, and temperature reactivity coefficient of the core. The research was conducted with a data set of core design parameters such as nuclides density, core and fuel dimensions, and the axial temperature distribution inside the core. Using SRAC2006 program package, the effective multiplication factor (keff) values obtained from the input data that has been prepared. The results show the value of the criticality of core is proportional to the addition of U235 enrichment. The optimum enrichment obtained at 10.125% without the use of burnable poison with an excess reactivity of 3.12% at BOL. The addition Gd2O3 obtained an optimum value of 12 ppm burnable poison with an excess reactivity 0.38 %. The use of Er2O3 with an optimum value 290 ppm has an excess reactivity 1.24% at BOL. The core temperature reactivity coefficient with and without the use of burnable poison has a negative values that indicates the nature of its inherent safety. Keywords: design, fuel, nuclear power plant, SRAC2006.
THE DOSE ANALYSIS OF BORON NEUTRON CAPTURE THERAPY (BNCT) TO THE BRAIN CANCER (GLIOBLASTOMA MULTIFORM) USING MCNPX-CODE WITH NEUTRON SOURCE FROM COLLIMATED THERMAL COLUMN KARTINI RESEARCH NUCLEAR Hasyim, Kholidah; Sardjono, Yohannes; Sumardi, Yosaphat
Indonesian Journal of Physics and Nuclear Applications Vol 3 No 3 (2018)
Publisher : Fakultas Sains dan Matematika Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (683.433 KB) | DOI: 10.24246/ijpna.v3i3.95-101

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This research was aimed at discovering the optimum concentration of Boron-10 in concentrations range 20 µgram/gram until 35 µgram/gram with Boron Neutron Capture Therapy (BNCT) methods and the shortest time irradiation for cancer therapy. The research about dose analysis of Boron Neutron Capture Therapy (BNCT) to the brain cancer (Glioblastoma Multiform) using MCNPX-Code with a neutron source from Collimated Thermal Column Kartini Research Nuclear has been conducted. This research was a simulation-based experiment using MCNPX, and the data was arranged on a graph using OriginPro 8. The modelling was performed with the brain that contains cancer tissue as a target and the reactor as a radiation source. The variations of Boron concentrations in this research was on 20, 25, 30 and 35 μg/gram tumours. The outputs of MCNP were neutron scattering dose, gamma ray dose and neutron flux from the reactor. Neutron flux was used to calculate the doses of alpha, proton and gamma rays produced by the interaction of tissue material and thermal neutrons. Based on the calculations, the optimum concentration of Boron-10 in tumour tissue was for a 30 µg/gram tumour with the radiation dose in skin at less than 3 Gy. The irradiation times required were 2.79 hours for concentration 20 μg/gram ; 2.78 hours for concentration 25 μg/gram ; 2.77 hours for concentration 30 μg/gram ; 2.8 hours for concentration 35 μg/gram.
PERANAN PERANGKAT PEMBELAJARAN FISIKA BERBASIS ELABORATION LEARNING UNTUK SISWA SMA Kusumawati, Asti Dwi; Sumardi, Yosaphat
UPEJ Unnes Physics Education Journal Vol 5 No 2 (2016)
Publisher : UPEJ Unnes Physics Education Journal

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (796.243 KB) | DOI: 10.15294/upej.v5i2.13619

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      Kurikulum KTSP dan kurikulum 2013 adalah kurikulum yang berpusat pada siswa (student centered). Pemahaman konsep dalam pembelajaran fisika adalah hal utama tetapi siswa masih mengalami kebingungan dengan konsep yang diajarkan. Materi gerak harmonik sederhana  menjadi salah satu materi yang dipilih dalam pembelajaran berbasis Elaboration Learning (EL). Selain pemahaman konsep aspek sikap ilmiah juga ingin di munculkan dalam proses pembelajaran dengan perangkat berbasis EL. Strategi EL menekankan pada proses pembelajaran yang terdiri dari 7 sintak. Proses pembelajaran menjadi lebih bermakna dengan penambahan rincian dan penyampaian informasi yang baru yang diberikan kepada siswa. Persiapan yang baik dan sarana belajar yang tepat dapat mendukung keberhasilan proses pembelajaran. Alat pembelajaran fisika yang dapat digunakan untuk melaksanakan pembelajaran berbasis EL berupa Silabus, RPP, handout, LKS dan tes pemahaman konsep. Peningkatan aspek pemahaman konsep dan sikap ilmiah pada siswa SMA menjadi tujuan yang ingin dicapai dalam proses pembelajaran ini.
PERANAN PERANGKAT PEMBELAJARAN FISIKA BERBASIS DESAIN UNTUK MENINGKATKAN PEMAHAMAN KONSEP DAN KETERAMPILAN PROSES SISWA SMA Oktaviani, Nurmala Safitri; Sumardi, Yosaphat
UPEJ Unnes Physics Education Journal Vol 5 No 3 (2016)
Publisher : UPEJ Unnes Physics Education Journal

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (835.254 KB) | DOI: 10.15294/upej.v5i3.13728

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Tujuan dari artikel ini untuk mengetahui peranan perangkat pembelajaran fisika berbasis desain untuk siswa SMA. Pembelajaran fisika merupakan bagian dari kurikulum 2013 yang diharapkan mampu mengembangkan potensi siswa sehingga siswa memiliki kecerdasan dalam berpikir dan keterampilan sebagai bekal siswa untuk hidup dalam bermasyarakat. Pembelajaran fisika pada kurikulum 2013 dapat diterapkan dengan pembelajaran berbasis desain sebagai salah satu model pembelajaran yang dapat menjadikan siswa sebagai pelaku utama dalam proses pembelajaran. Penerapan pembelajaran berbasis desain dapat terlaksana dengan baik apabila rangkaian kegiatan pembelajaran telah dipersiapkan dan disusun dengan baik dalam bentuk perangkat pembelajaran. Perangkat pembelajaran fisika yang dapat digunakan untuk membantu terlaksananya proses pembelajaran berbasis desain antara lain berupa Rencana Pelaksanaan Pembelajaran (RPP), Lembar Kegiatan Siswa (LKS), handout, dan Tes Hasil Belajar (THB). Penerapan perangkat pembelajaran berbasis desain diharapkan mampu meningkatkan pemahaman konsep dan keterampilan proses sains siswa.