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All Journal SAINS MEDIKA : JURNAL KEDOKTERAN DAN KESEHATAN RADIASI: Jurnal Berkala Pendidikan Fisika ILMU KELAUTAN: Indonesian Journal of Marine Sciences BERKALA FISIKA Jurnal Sains dan Pendidikan Fisika Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Jurnal Sains Dasar Jurnal Pendidikan Fisika Indonesia Jurnal Teknosains Prosiding Semnastek JFA (Jurnal Fisika dan Aplikasinya) Majalah Obat Tradisional Jurnal Fisika FLUX Indonesian Journal of Science and Education Unnes Science Education Journal Titian Ilmu: Jurnal Ilmiah Multi Sciences JPPPF (Jurnal Penelitian dan Pengembangan Pendidikan Fisika) Jurnal Penelitian Pendidikan IPA (JPPIPA) JPF (Jurnal Pendidikan Fisika) Universitas Islam Negeri Alauddin Makassar Biosfer: Jurnal Pendidikan Biologi Indonesian Journal of Chemistry UPEJ Unnes Physics Education Journal Jurnal Teori dan Aplikasi Fisika Jurnal Sains dan Edukasi Sains Journal of Science and Science Education Jurnal Kependidikan: Jurnal Hasil Penelitian dan Kajian Kepustakaan di Bidang Pendidikan, Pengajaran dan Pembelajaran Journal of Fundamental Mathematics and Applications (JFMA) Prosiding SNPBS (Seminar Nasional Pendidikan Biologi dan Saintek) Magistrorum et Scholarium: Jurnal Pengabdian Masyarakat Jurnal Riset Multidisiplin dan Inovasi Teknologi Science Technology and Management Journal (STMJ) Biodiversitas Journal of Biological Diversity
Ferdy Semuel Rondonuwu
Universitas Kristen Satya Wacana
Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Other

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ANALYSIS OF CAROTENOID CONTENT OF CRUDE EXTRACT OF TONGKAT LANGIT BANANA FRUIT (Musa troglodytarum) USING NIR SPECTROSCOPY (NEAR INFRARED) Samson, Efraim; Semangun, Haryono; Rondonuwu, Ferdy S.
Majalah Obat Tradisional Vol 18, No 1 (2013)
Publisher : Faculty of Pharmacy, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (512.684 KB) | DOI: 10.14499/mot-TradMedJ18iss1pp%p

Abstract

Carotenoids found in fruits and vegetables, plays an important role in preventing human diseases, including cardiovascular disease, cancer and other chronic diseases. However, many of the methods used in the determination of the chemical composition in particular for food takes a long time and the cost is quite expensive. Currently a number of instrumentation techniques have been developed to determine chemical content quickly. One example is the technique of measurement using NIR spectroscopy. In this study, NIR spectroscopy is used for the analysis of estimation of carotenoids crude extract of long and short “tongkat langit” bananas (Musa troglodytarum). The results obtained show that this fruit contains β-carotene, because the area of wave numbers 5000 to 5500cm-1 is similar between the pattern of β-carotene spectrum marker and the pattern of carotenoid pigment tongkat langit banana spectrum.
Studi Awal Pengaruh Pemberian Asam Boron dan Penembakan Neutron terhadap cell fibroblast dan cell lineKanker Payudara Maslebu, Giner; Muninggar, Jodelin; S. Rondonuwu, Ferdy; Trihandaru, Suryasatriya; Widarto, Widarto; Sardjono, Yohannes
Jurnal Fisika FLUX Vol 14, No 2 (2017): Jurnal Fisika FLUX Edisi Agustus 2017
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v14i2.4191

Abstract

Kanker merupakan salah satu penyakit mematikan yang mendapatkan perhatian serius oleh peneliti dan praktisi di bidang kesehatan. Penyakit kanker adalah penyakit yang timbul akibat pertumbuhan tidak normal sel jaringan tubuh yang berubah menjadi sel kanker.Dari berbagai jenis kanker, kasus yang paling banyak terjadi pada kaum perempuan adalah kanker payudara. Teknik pengobatan kanker terus dikembangkan sehingga mampu secara selektif membunuh target sel kanker (cell targeting) dan memberikan efek yang minimal bagi sel sehat di sekitar target. Salah satu teknik pengobatan yang menjanjikan adalah Boron Neutron Captured Teraphy (BNCT). Dalam penelitian ini, sel fibroblast dan sel kanker payudara T47D dipanen pada sumuran setelah diinkubasi selama 16 jam, kemudian diberikan perlakuan  asam boron dengan dosis asam boron berjenjang 100 µM, 200 µM, 400 µM.Penembakan neutron diberikan dengan flux sebesar 1010 neutron/cm2s mengggunakan sumber neutron pada fasilitas reaktor Kartini PSTA-Batan terhadap kultur selselama 30 menit. Pada sel fibroblast tingkat kematian sel berkisar antara 2,5-21,212 % setelah pemberian asam Boron dan meningkat menjadi 24,242-71,424 % setelah penembakan neutron. Pada sel kanker payudara T47D tingkat kematian sel berkisar antara 26,761-48,76 % setelah pemberian asam Boron dan meningkat menjadi 36,585-56,25 % setelah penembakan neutron. Hasil penelitian ini menunjukkan ada pengaruh pemberian asam Boron dan penembakan Neutron terhadap tingkat kematian sel.
THICKNESS DEPENDENCE OF MAGNETIC SWITCHING DYNAMICS OF BARIUM-FERRITE AS A HIGH-DENSITY PERPENDICULAR MAGNETIC STORAGE MEDIA Aji, P. P.; Rondonuwu, F. S.; Wibowo, N. A.
Jurnal Pendidikan Fisika Indonesia Vol 13, No 2 (2017)
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpfi.v13i2.8499

Abstract

Micromagnetic study of material thickness dependence of Barium-ferrite nano-dot magnetization dynamics has been performed. The used materials characteristics in this research represent the properties of Barium-ferrite. Barium-ferrite was modeled as a nano-dot with a surface area of 50 × 50 nm2 and its thickness varies from 5 nm to 100 nm. This nano-dot was simulated using micromagnetic simulator software by solving Landau-Lifshitz-Gilbert equation. According to this study, obtained that the Barium-ferrite nano-dot has excellent thermal stability. Magnetization rate of this nano-dot decreases exponentially with the increase of thickness. The fastest magnetization rate observed in 5 nm of nano-dot thickness, meanwhile 45 nm for the slowest rate. Magnetization reversal mode of this Barium-ferrite nano-dot is dominated by domain wall nucleation and propagation. During the propagation of the domain wall, the exchange interaction becomes the main aspect compared to the other contributed energies.
PEMANFAATAN KAMERA SMARTPHONE DAN EYETRACKING ANALYSIS PADA PERCOBAAN KINEMATIKA DI ATAS LANDASAN UDARA DUA DIMENSI Wantoro, Kris; Sudjito, Debora N.; Rondonuwu, Ferdy S.
UPEJ Unnes Physics Education Journal Vol 5 No 1 (2016)
Publisher : UPEJ Unnes Physics Education Journal

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (970.828 KB) | DOI: 10.15294/upej.v5i1.12705

Abstract

Smartphone semakin menjadi piranti umum yang dimiliki oleh hampir semua guru dan siswa di sekolah menengah. Smartphone memiliki fitur standar berupa video yang sangat membantu perolehan data yang kemudian diolah menggunakan program Tracker sebagai software analisis. Penelitian ini melaporkan desain percobaan gerak satu dan dua dimensi di atas bidang landasan udara 2D dengan gaya gesek yang kecil. Percobaan gerak linier, tumbukan dua dimensi, dan gerak getaran teredam yang dilakukan di atas landasan udara tersebut direkam menggunakan kamera smartphone dan dianalisis dengan Tracker. Melalui percobaan tersebut dapat dihitung kecepatan rata-rata maupun kecepatan sesaat benda yang bergerak. Pada percobaan gerak linier, penentuan point mass pada Tracker menghasilkan data posisi x, posisi y, dan grafik gerak linier. Pada percobaan tumbukan dua dimensi, hukum kekekalan momentum dapat diperiksa dengan ketelitian yang cukup baik. Pada percobaan getaran teredam, dinamika gerak benda yang direkam dengan kamera dan dianalisis dengan Tracker mampu menampilkan grafik getaran teredam dengan baik. Simulasi persamaan getaran teredam cocok dengan analisis pada video. Dengan demikian penggunaan smartphone dan program Tracker pada analisis gerak mampu memberikan hasil yang akurat sehingga memungkinkan untuk digunakan dalam merancang berbagai percobaan kinematika di sekolah menengah. Smartphone has been a common device that is mostly owned by teachers and high school students. Smartphone has standard fitures such as video that is very helpful on obtained data, and then they are processed using Tracker programme as software analysis. This research reports the experiment design of one and two dimension motions on air bench with minimum friction. Linear motion experiment, two dimension collision and damped oscilation on air bench were recorded using smartphone camera and were analyzed with Tracker. Through those experiments, average velocity and instantaneous velocity of an object in motion could be calculated. In linear motion experiment, the placement of the point mass results the data of x-position, y-position, and linear motion graphs. In two dimension collision experiment, law of perpetual momentum was able to be investigated in a good precision. In damped oscilation experiment, dynamic motion of the object that was recorded by camera and analized with Tracker showed a good damped oscilation graph. Simulation of damped oscilator’s equation similar to the video analysis. Thus, using smartphone and Tracker in motion analysis were able to give accurate result so it is enabled to use it in designing various kinematic experiments in high school.
Development of Motion Learning Media and Energy Conservation Law Through Coaster Tracks Based on Logger Pro Analysis Setiyani, A.; Kristiyanto, W. H.; Rondonuwu, F. S.
Jurnal Pendidikan Fisika Indonesia Vol 15, No 1 (2019)
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpfi.v15i1.17253

Abstract

Research has been conducted to find out relation position and speed to time, for objects that glide on a magnetic foundation by applying the Research and Development method. Data retrieval is done by using video train motion recordings which are analyzed using Logger Pro. The results of the analysis are represented in the form of data and graphics. Based on the data analysis and fitting using the Logger Pro, the following values are obtained: vtrain 0.027 m/s, atrain 0.034 m/s2, average train velocity 0.02572 m/s and average train acceleration 0.03662 m/s2 with RMSE (Root Mean Square Error) value of 0.013 m. The acceleration value obtained is very small and almost close to zero, so it can be said that objects that experience irregular straight motion. The graph representation of velocity over time shows an increase in speed that is not constant. This is because there is still friction between the train and the runway and friction between magnets along the track with friction forces 4,566 N. The value of kinetic energy, potential energy, and mechanical energy can be determined by using the results of Logger Pro analysis.Telah dilakukan penelitian untuk mengetahui grafik keterkaitan posisi dan kecepatan terhadap waktu, untuk benda yang meluncur di atas landasan magnetik dengan menerapkan metode Research and Development. Pengambilan data dilakukan dengan menggunakan video rekaman gerak kereta yang dianalisis menggunakan Logger Pro. Hasil analisis direpresentasikan dalam bentuk data dan grafik. Berdasarkan analisis dan fitting data menggunakan Logger Pro diperoleh nilai sebagai berikut   vkereta 0,027 m/s, akereta 0,034 m/s2, v rata-rata kereta 0,02572 m/s dan arata-rata kereta 0,03662 m/s2 dengan nilai RMSE (Root Mean Square Eror) sebesar 0,013 m. Nilai percepatan yang diperoleh sangat kecil dan hampir mendekati nol, sehingga dapat dikatakan bahwa benda mengalami gerak lurus beraturan. Representasi grafik kecepatan terhadap waktu memperlihatkan pertambahan kecepatan yang tidak konstan. Hal ini dikarenakan masih terdapat gesekan yang terjadi antara kereta dengan landasan maupun gesekan antar magnet di sepanjang lintasan dengan gaya gesek 4,566 N. Nilai energi kinetik, energi potensial, dan energi mekanik dapat ditentukan besarnya menggunakan data hasil analisis Logger Pro.
IDENTIFIKASI TELUR AYAM DARI INDUK MUDA DAN TUA MENGGUNAKAN SPEKTROSKOPI INFRAMERAH DEKAT Amalia, Riana; Trihandaru, Suryasatriya; Rondonuwu, Ferdy S
BERKALA FISIKA Vol 16, No 4 (2013): Berkala Fisika
Publisher : BERKALA FISIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (181.181 KB)

Abstract

One important factor in the hatching chicken eggs industry is hatchability of  the eggs. Conventionally, hatchability of the eggs is determined by the age of the hen. It is estimated thateggs which have high hatchability will produced from the hen which is aged between 25 to 55weeks. However, the age of the eggs hen is difficult to recognize from the egg itself, in particular ifthe identification needs to be done quickly and involving eggs in large quantities. This paperreports the identification of chicken egg from young and old hen using Near Infrared Spectroscopy(NIRS), followed by Principal Component Analysis (PCA). A total of 120 eggs with the amount of 60 eggs  that was taken from young hen (aged around 26 weeks) and the remaining 60 eggs thatwas taken from  old hen (aged arround 66 weeks) can be clearly distinguished by clusteringthrough PC1-PC2 diagram. Thus, this method can be used to identify  chicken eggs based on agehen.Keywords : Chicken Eggs, NIRS, PCA.
Karakterisasi Dinamika Tingkat Tenaga Eksitasi 2Ag- Pada Karotenoid Spheroidene Menggunakan Spektroskopi Ultra Cepat Pisah Waktu Novita, Mega; Mangimbulude, Jubhar; S. Rondonuwu, Ferdy
BERKALA FISIKA Vol 13, No 2 (2010): Berkala Fisika, Edisi Khusus
Publisher : BERKALA FISIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (311.264 KB)

Abstract

Poliena adalah rantai karbon dengan ikatan rangkap dan tunggal yang saling berutan. PPP-MRD-CI mempredikasikan bahwa rantai-rantai pendek poliena memiliki struktur energi dengan tingkatan 1Ag- > 2Ag- > 1Bu+.  Waktu hidup tingkat tenaga eksitasi 2Ag- dan 1Bu+  pada poliena berada pada orde pikodetik – nanodetik tergantung pada panjang rantainya. Karotenoid sering dimodelkan sebagai rantai poliena dengan struktur energi yang sama. Paper ini membahas dinamika tingkat tenaga 2Ag- karotenoid spheroidene dalam pelarut n-hexane menggunakan spektroskopi ultra cepat pisah waktu. Didapati bahwa waktu hidup tingkat tenaga 2Ag- karotenoid spheroidene sekitar 9 pikodetik, dan sedikit bervariasi tergantung tingkat vibrasinya. Kata kunci: spheroidene, struktur energi, waktu hidup, spektroskopi
UNDERSTANDING BY DESIGN (UBD) FOR THE PHYSICS LEARNING ABOUT PARABOLIC MOTION Kuntari, Fransiska Retno; Rondonuwu, Ferdy Semuel; Sudjito, Debora Natalia
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol 9, No 1 (2019)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v9n1.p32-43

Abstract

In general, in preparing the lesson, teachers determine some components namely learning objectives, procedures, and evaluation and assessment instruments. Several problems in Physics learning on Parabolic Motion indicate possible flaws from the three components in designing the lesson. Understanding by Design (UbD) is applied as one of the alternative strategies to improve the lesson quality by considering the learning objectives, procedures, and evaluation by reversing the design, namely proposing the objectives first, evaluations as the second, and lesson steps as the last step. This is a qualitative research intended to construct an alternative design of Physics learning on Parabolic Motion using UbD. The initial Physics learning design was reviewed and analyzed by experts and revised until the final design. Understanding by Design (UbD) could be used as an alternative design construction as it helps teachers to relate the three main components, namely learning objectives, evaluations, and steps so it eased the students understand the materials comprehensively and obtain maximum score. Despite the development of current materials needs more improvement, Understanding by Design (UbD) can applied for many materials.
UNDERSTANDING BY DESIGN (UBD) FOR THE PHYSICS LEARNING ABOUT PARABOLIC MOTION Kuntari, Fransiska Retno; Rondonuwu, Ferdy Semuel; Sudjito, Debora Natalia
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol 9, No 1 (2019)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v9n1.p32-43

Abstract

In general, in preparing the lesson, teachers determine some components namely learning objectives, procedures, and evaluation and assessment instruments. Several problems in Physics learning on Parabolic Motion indicate possible flaws from the three components in designing the lesson. Understanding by Design (UbD) is applied as one of the alternative strategies to improve the lesson quality by considering the learning objectives, procedures, and evaluation by reversing the design, namely proposing the objectives first, evaluations as the second, and lesson steps as the last step. This is a qualitative research intended to construct an alternative design of Physics learning on Parabolic Motion using UbD. The initial Physics learning design was reviewed and analyzed by experts and revised until the final design. Understanding by Design (UbD) could be used as an alternative design construction as it helps teachers to relate the three main components, namely learning objectives, evaluations, and steps so it eased the students understand the materials comprehensively and obtain maximum score. Despite the development of current materials needs more improvement, Understanding by Design (UbD) can applied for many materials.
UNDERSTANDING BY DESIGN (UBD) FOR THE PHYSICS LEARNING ABOUT PARABOLIC MOTION Kuntari, Fransiska Retno; Rondonuwu, Ferdy Semuel; Sudjito, Debora Natalia
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol 9, No 1 (2019)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v9n1.p32-43

Abstract

In general, in preparing the lesson, teachers determine some components namely learning objectives, procedures, and evaluation and assessment instruments. Several problems in Physics learning on Parabolic Motion indicate possible flaws from the three components in designing the lesson. Understanding by Design (UbD) is applied as one of the alternative strategies to improve the lesson quality by considering the learning objectives, procedures, and evaluation by reversing the design, namely proposing the objectives first, evaluations as the second, and lesson steps as the last step. This is a qualitative research intended to construct an alternative design of Physics learning on Parabolic Motion using UbD. The initial Physics learning design was reviewed and analyzed by experts and revised until the final design. Understanding by Design (UbD) could be used as an alternative design construction as it helps teachers to relate the three main components, namely learning objectives, evaluations, and steps so it eased the students understand the materials comprehensively and obtain maximum score. Despite the development of current materials needs more improvement, Understanding by Design (UbD) can applied for many materials.
Co-Authors A B Susanto Adita Sutresno Aditya Toraismaya Aji, P. P. Aktivia Ismi Lestari Aldovina Kristin Muniarti Alvama Pattiserlihun Andreas Setiawan Andriyani Rosita Sari Anggara Mahardika Anjela M. Jitmau Antonius Budi Susanto Bambang Ismanto Binerd Anthon Im Toy Chatarina Umbul Wahyuni Chrisli Elfri Sahuleka Chrisli Elfri Sahuleka Debora Natalia Sudjito Dhanang Puspita Efraim Samson, Efraim Elizabeth Betty Elok Kristiani Eskelon Kalvin Sanggemi Felix Marcellino Henrikus Ferry Fredy Karwur Fransisca Indra Dewi Galuh K Wardhani Galuh K. Wardhani Gian Kirana Efruan Gian Kirana Efruan, Gian Kirana Giner Maslebu Hafidz Bahtiar Haryono Semangun Haryono Semangun Helti Lygia Mampouw Ida Kristiani James Ngginak Jerry F Langkun Jessica R. Setyanto Jodelin Muninggar Jodelin Muninggar Jodelin Muninggar, Jodelin Jouis Nieldy Otemusu Jubhar C Mangibulude Jubhar C. Mangimbulude Jubhar Ch. Mangimbulude Jubhar Mangimbulude Julianto Patawaran Junet F. da Costa Kabul Eko Wiyono Kris Wantoro, Kris Leopoldus Ricky Sasongko Lestari, Aktivia Ismi Lusiawati Dewi Mardon Limena Maria Marina Herawati Marmi Sudarmi Martanto Martosupono Martanto Martosupono Martanto Martosupono Martha Febryana Marthen Billy Jesajas Mayasari, Anisa Mega Novita Menik Gustinasari Mochamad Choirul Misbachudin Monika Rahardjo Nur Aji Wibowo Ocky K. Radjasa Ocky K. Radjasa Ocky Karna Radjasa Paulus D. B. Murti Paulus Damar Bayu Murti Pratiwi, Indri D Putri, Dera Anastasya Ria Budi Astuti Riana Amalia Rizki E. Agustin Rizki E. Agustin Rony, Zahara Tussoleha Sabrina Aprilisa Martha Samalukang, Dina N Sepriyanti Manialoka, Sepriyanti Setiyani, A. Sri Kasmiyati Sulistiyani, Nur Suryasatriya Trihandaru Wahyu Hari Kristiyanto Welmince Bota Wiwik Astuti Wiwik Astuti Yafeth S. Wetipo Yari Dwikurnaningsih Yayi Suryo Prabandari Yerika P. Rosanti Yohanes Martono Yohannes Sardjono Yohannes Sardjono Yosaphat Haris Nusarastriya