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All Journal Buletin Udayana Mengabdi Jurnal Biologi Udayana Bumi Lestari Jurnal Keselamatan Radiasi dan Lingkungan Jurnal Fisika FLUX Jurnal Penelitian Pendidikan IPA (JPPIPA) Indonesian Physical Review Kappa Journal

I Gde Antha Kasmawan

Department Of Physics, Faculty Of Mathematics And Natural Sciences, Udayana University, Indonesia

Author-ID : 598180

Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Education Energy Environmental Science Materials Science & Nanotechnology Physics Other

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PEMBUATAN PUPUK ORGANIK CAIR MENGGUNAKAN TEKNOLOGI KOMPOSTING SEDERHANA I.G.A. Kasmawan; G.N. Sutapa; I.M. Yuliara
Buletin Udayana Mengabdi Vol 17 No 1 (2018): Buletin Udayana Mengabdi
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Plants in growth and development require two types of nutrients, namely macro and micro nutrients.However, only N, P, and K elements are needed plants for larger amount. The purpose of this research is toprovide liquid organic fertilizer as balancing fertilizer considering the increasing price of fertilizer in themarket. Research on the use of simple composting technology in the manufacture of liquid organic fertilizeris done by involving participants from the elderly group, which is light and can be done alone. The composterused is a 25 L gallon with an outer connecting hose. The end of the hose is immersed in a bottle of water toensure the sustainability of the composting process in an anaerobic atmosphere. Production of liquid organicfertilizer using main ingredient in the form of foliage (5 kg) and livestock waste (1kg), with additivessuchshrimp paste (100 g) and brown sugar (200 g), and 200 mL EM4 as bioactivator. Five successful liquidorganic fertilizer products have the highest nitrogen (N), phosphorus (P), and potassium (K) content of0.16%, 153,75 mg/L and 663,98 mg/L, respectively.

PENGELOLAAN LABORATORIUM DAN PENGETAHUAN GURU IPA DALAM MEMBUAT MODUL PRAKTIKUM DI SMP TAMAN SASTRA JIMBARAN G. N. Sutapa; N. N. Ratini; I. M. Yuliara; I. G. A. Kasmawan
Buletin Udayana Mengabdi Vol 19 No 1 (2020): Buletin Udayana Mengabdi
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Hasil identifikasi keberadaan tenaga laboratorium IPA di SMP Taman Sastra Jimbaran Kuta Selatan, Badung adalah sekolah swasta yang menunjukkan bahwa umumnya kualifikasi pendidikan tenaga yang ditugaskan di laboratorium IPA belum memenuhi persyaratan standar tenaga laboratorium sekolah. Data yang diperoleh dari interview dengan guru IPA di SMP Taman Sastra Jimbaran, menyatakan bahwa sebagian besar guru IPA masih mengalami masalah untuk melakukan praktikum tentang topik-topik tertentu, tidak semua konsep-konsep IPA eksperimental dapat diajarkan dengan praktikum karena keterbatasan alat-alat dan bahan yang tersedia. Salah satu kendala yang menghambat kelancaran pelaksanaan pembelajaran IPA di laboratorium adalah terbatasnya jumlah dan/atau jenis alat yang tersedia dan belum memiliki petunjuk praktikum yang tersusun secara permanen (dalam bentuk Modul). Hasil pengabdian ini telah mengasilkan beberapa alat praktikum sederhana dan dilengkapi dengan modul praktikum yang telah tersusun dengan baik. Diakhir kegiatan alat praktikum dan modul prkatikum diserahkan kepada SMP Taman Sastra Jimbaran. . Kata kunci : Laboratorium, alat praktikum, modul praktikum

ANALISIS WAKTU PEMUPUKAN TANAMAN SAWI HIJAU (Brassica rapa var. parachinensis) DENGAN TEKNIK PERUNUT RADIOAKTIF Gusti Ngurah Sutapa; Ni Nyoman Ratini; Gde Antha Kasmawan
Jurnal Biologi Udayana Vol 20 No 1 (2016): Jurnal Biologi
Publisher : Program Studi Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (624.481 KB)

Telah dilakukan penelitian analisis waktu pemupukan pada tanaman sawi hijau (Brassica rapa var. parachinensis)dengan teknik perunut radioaktif. Untuk menuju sistem pertanian berkelanjutan perlu adanya perbaikan pertanian(intensifikasi) selama beberapa tahun yang lalu masih signifikan, karena ketersediaan sumber daya alam danteknologi pertanian cukup memadai dan berimbang dengan ketersediaan lahan dan peningkatan jumlah penduduk.Keadaan ini sulit untuk dipertahankan dimasa yang akan datang, kecuali ada pendekatan baru yang menawarkan ide dan teknik untuk meningkatkan produktifitas pertanian. Efesiensi pemupukan tanaman dengan teknik perunut (tracer) radioisotop adalah salah satu potensi menujusistem pertanian berkelanjutan. Teknik perunut dapat digunakan antara lain untuk mempelajari hubungan antaratanah dan tanaman, menentukan kondisi optimal dalam penggunaan pupuk (waktu pemupukan, pola perakaranaktif tanaman, jenis dan takaran pupuk), mempelajari proses dekomposisi dan mineralisasi bahan organik, sertamempelajari proses fotosintesis tanaman,baik dengan metoda langsung maupun tidak langsung.Waktu pemupukanyang lebih tepat dapat ditentukan dengan teknik perunut tersebut, sehingga optimalisasi pemupukan dapat dicapai,tanpa pemborosan yang tidak berguna.Dari penelitian dengan menggunakan radioisotop P, ternyata waktupemupukan pada tanaman sawi hijau (Brassica rapa var. parachinensis) yang paling signifikan adalah padapukul 9.00 pagi. Waktu siang hari mulai pukul 11.00 sampai pukul 15.00 adalah waktu pemupukan yang sangatburuk. Sedangkan waktu sore hari yaitu pukul 15.00 sampai 17.00 menunjukkan waktu pemupukan yang semakinbaik namun tidak signifikan.32

Pemberdayaan Kelompok Lanjut Usia melalui Pengenalan Teknologi Pembuatan Pupuk Organik Cair (POC) sebagai Upaya Bentuk Kepedulian terhadap Lingkungan I Gde Antha Kasmawan; Gusti Ngurah Sutapa; I Made Yuliara
Bumi Lestari Journal of Environment Vol 17 No 2 (2017)
Publisher : Environmental Research Center (PPLH) of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/blje.2017.v17.i02.p01

In order to avoid post power syndrome, the elderly who have a hobby of farming / gardening can be empowered through the introduction of LOF (liquid organic fertilizer) making technology and its application. The aim is for the elderly to understand the technology of making organic fertilizers that are lightweight, useful and entertaining as well as for them to feel contribute in maintaining the environment. The training method applied is a combination of interactive lecture and practice methods. Based on these methods, have succeeded in growing their creativity in making LOF and feel comforted on the results obtained. Successful LOF products contained nitrogen, phosphorus and potassium (NPK) of 146,701 mg / L, 0.741 mg / L, and 0.035 mg / L, respectively, and magnesium (Mg) and calcium (Ca) of 86.332 mg / L and 1.970 mg / L. The application of LOF products has been done on the orchid plants (Phalaenopsis amabilis) with satisfactory results. Thus, the mastery of LOF making technology and its application will reduce the dependence of chemical fertilizer use and replace it with homemade organic fertilizer so it can contribute in maintaining health and environmental sustainability.

Efek Induksi Mutasi Radiasi Gamma 60Co Pada Pertumbuhan Fisiologis Tanaman Tomat (Lycopersicon esculentum L.) Gusti Ngurah Sutapa; I Gde Antha Kasmawan
Jurnal Keselamatan Radiasi dan Lingkungan Vol 1, No 2 (2016): Desember 2016
Publisher : Pusat Teknologi Keselamatan dan Metrologi Radisasi - BATAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (451.402 KB)

Hampir seluruh jenis masakan di Indonesia menggunakan tomat (Lycopersicon esculentum L.) sebagai bahan dasar pembuatannya. Nilai gizi yang terkandung dalam tomat juga cukup tinggi, karena terdapat sejumlah kandungan vitamin yang diperlukan oleh tubuh manusia. Selain itu, tomat menjadi tanaman unggulan nasional komoditas hortikultura dan prioritas utama pada sejumlah provinsi di Indonesia. Demikian banyak manfaat dari tomat mengindikasikan bahwa produktivitas tomat harus segera ditingkatkan. Salah satu peningkatan dari segi kualitas dapat dilakukan dengan cara induksi mutasi dengan radiasi gamma Co-60. Induksi mutasi adalah perubahan genetik yang disebabkan oleh usaha manusia, salah satu caranya yaitu dengan bahan radioaktif. Radiasi gamma Co-60 dari pesawat IRPASENA dipaparkan pada biji tomat dengan perlakuan dosis 50, 100, 150, 200 dan 250 Gy. Selanjutnya dilakukan pengukuran terhadap pertumbuhan fisiologis meliputi lebar daun, tinggi tanaman, jumlah buah dan berat basah buah tomat dari minggu-1 hingga panen. Hasil penelitian menunjukan kurva pertumbuhan fisiologi tanaman tomat sesuai dengan kurva sigmoidal pertumbuhan tanaman. Pertumbuhan fisiologis tanaman tomat optimal pada dosis radiasi gama Co-60 100 Gy. Pada dosis optimal tersebut pertumbuhan fisiologis tanaman tomat diketahui yang terbaik (unggul) dibandingkan pada dosis di bawah dan di atas 100 Gy maupun kontrol. Almost all types of cuisine in Indonesia are using tomatoes as the base material of manufacture. The nutritional value contained in tomatoes is also quite high, because there is a number of vitamin content required by the human body. In addition, the tomatoes in plants featured national horticultural commodity and priority on a number of provinces in Indonesia. So many benefits of tomatoes indicates that the productivity of tomatoes should be improved. One improvement in terms of quality can be done by means of mutation induction with gamma radiation of Co-60. Induction of mutations are genetic changes caused by human effort, one of them is by using radioactive materials. Gamma rays of Co-60 from the IRPASENA facility was exposed to tomato seeds at doses of 50, 100, 150, 200 and 250 Gy. And then measurements were conducted on the physiological growth of leaf width, plant height, number of fruit and wet weight of tomatoes from week 1 until harvest. The results showed a growth curve of tomato is in accordance with sigmoidal plant physiological growth curve. Optimal physiological growth of tomato plants was obtained at dose of gamma radiation of 100 Gy. At this optimal dose physiological growth of tomato plants is the best (superior) than in doses below and above 100 Gy and control.

PENGENALAN TEKNOLOGI PENGERINGAN CABAI UNTUK KELOMPOK TANI DI SEKARTAJI TABANAN I.G.A. Kasmawan; G. N. Sutapa; I. M. Yuliara; N. N. Ratini; W. T. Baskoro; N. L. P. Trisnawati
Buletin Udayana Mengabdi Vol 20 No 3 (2021): Buletin Udayana Mengabdi
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Harga cabai yang turun saat panen melimpah tentu sangat merugikan petani. Hal tersebut perlu segera ditangani dengan cara memperlama masa simpan cabai menggunakan tekonologi tepat guna melalui program pengabdian kepada mayarakat. Tujuan program tersebut adalah memperkenalkan teknik pengeringan cabai menggunakan alat pengering cabai. Metode pelaksanaan pengabdian menggunakan metode ceramah interaksif dan praktek tentang teknologi pengolahan produk cabai mentah hingga menjadi cabai kering menggunakan alat pengering cabai. Hasil yang diperoleh adalah terciptanya alat pengering cabai sederhana berbahan bakar gas. Alat tersebut dibangun menggunakan kombinasi bahan logam (90%) dan kayu (10%) berukuran 80 x 50 x 120 cm3, dengan daya tampung hingga ± 7 kg cabai rawit mentah. Cabai rawit merah dan cabai rawit hijau mengalami penyusutan berat masing-masing sekitar 80% dan 90% dengan warna produk sangat kontas. Proses pengeringan dengan alat pengering lebih cepat (6 jam) dibandingkan dengan cara konvensional (7-10 hari). Berdasarkan hasil kuisioner, tingkat keberhasilan pelaksanaan program pengabdian tersebut di atas 90%.

Determination of Critical Organ Effective Dose in Head CT Scan Examination at Bali Mandara Hospital Sutapa, Gusti Ngurah; Winer Johan Bora; I Gde Antha Kasmawan; Ni Kadek Nova Anggarani; I Ketut Putra; Ni Putu Yuni Nurmalasari
Kappa Journal Vol 9 No 1 (2025): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v9i1.28471

The study aims to determine the effective dose to critical organs in head CT scans at RSUD Bali Mandara and analyse the difference in effective dose between male and female patients and compare it with BAPETEN's normal threshold. Secondary data including current, voltage, CTDIvol, and DLP were collected and grouped by gender. The effective dose was calculated by multiplying DLP by the conversion factor K and CTDIvol by the organ weight factor (WT). The mean effective dose of male patients was 4.35 ± 0.68 mGy, while that of female patients was 4.00 ± 0.53 mGy. The effective dose of critical organs for males was 0.642 mGy and for females 0.613 mGy, with higher doses for males. Statistical analysis using t-test shows the value of tcount < ttable, which indicates that the effective dose in head CT scan examination at RSUD Bali Mandara is still within normal limits according to the BAPETEN DRL standard Number: 1211/K/V/2021.

Penyelesaian Persamaan Schrodinger Tidak Bergantung Waktu Dengan Metode Finite Difference Widagda, I Gusti Agung; Artawan, I Nengah; Suharta, Wayan Gede; Antha Kasmawan, I Gde
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 21, No 3 (2024): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v21i3.19289

The solution of time-independent Schrodinger equation (TISE) has been studied by several researchers. In this research, a TISE solution is found by using the finite difference method which is implemented in computer program code by using the Python language. TISE in the form of a second order differential equation is solved by using the finite difference method. In order to normalize the resulting wave function it is necessary to divide it by square root of the integral of the squared wave function. The integral method used is the Riemann method. In order to prove quantitatively that the TISE solution of the finite difference method is the same as or close to that of the analytical method, it is carried out by using linear regression and the z test. The research results show that the linear regression results from the two methods are nearly close. This is able to be seen from the values of gradient (m), intercept (c) and coefficient of determination (R2) which are close to ideal values, namely, 1, 0 and 1, respectively. In addition, from the z test it is concluded that the null hypothesis H0 is accepted, which means the solution of finite difference method is equal to analytical solution by a confidence level of 95 percent.

Uji Kesesuaian Generator Tabung Sinar-X dan Automatic Exposure Control (AEC) pada Mamografi Digital di RSD Mangusada Badung Silalahi, Johanes J.; Sutapa, Gusti Ngurah; Pranditayana, I Nyoman; Sandi, I Nengah; Kasmawan, I Gde Antha; Nurmalasari, Ni Putu Yuni
Kappa Journal Vol 8 No 2 (2024): Agustus
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v8i2.24341

This study focuses on evaluating the quality and performance of the digital mammography system at Mangusada Badung Regional Hospital (RSD) in an effort to prevent and early detect breast cancer. With the prevalence and mortality rate of breast cancer continuing to increase, early detection is important. Digital mammography has an important role in this early detection. This study aims to evaluate the performance of digital mammography at Radiology Installation Mangusada Badung through a series of tests. generator and x-ray tube suitability test and automatic exposure control (AEC). The results showed conformity tests on voltage accuracy (maximum error 0.8%), linearity (CL 0.01), reproducibility (radiation output CV 0.001, peak voltage CV 0.003), emergency timer (stops at 0 mAs), tracking (% patient thickness % exposure index error 7.9%, voltage exposure index error 6%), AEC (voltage CV 0.000, current time CV 0.000), exposure time (large focus t 0.87 seconds, small focus t 1.21 seconds). The test results show that the digital mammography system meets the conformity test criteria in accordance with PERKA BAPETEN no. 2 of 2022. This provides confidence that the device meets the established quality standards. With this fulfillment, it is expected that the accuracy of diagnosis can be improved and the risk of errors in early detection of breast cancer can be reduced. Therefore, the digital mammography system at RSD Mangusada Badung is expected to be.

PERANCANGAN ALAT UKUR KELEMBABAN TANAH MENGGUNAKAN CAPACITIVE SOIL MOISTURE SENSOR BERBASIS ANDROID Tri Jaya Maghuna, Komang; Wibawa, I Made Satriya; Suardana, Putu; Widagda, I. G. A; Trisnawati, Ni Luh Putu; Kasmawan, I Gde Antha
Kappa Journal Vol 8 No 2 (2024): Agustus
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v8i2.25122

A soil moisture measuring instrument has been designed and created using an Android-based capacitive soil moisture sensor. The design of a soil moisture measuring instrument was made to understand how to design, how it works, and the results of calibration. The process of calibrating and applying the design tool is carried out by comparing the results of soil moisture measurements between the design tool and the reference tool. The calibration itself was carried out using black sand soil into which 0 ml, 10 ml, 30 ml, 50 ml and 70 ml of water were poured periodically. The reference tool used is the soil moisture meter pH tester VT05 with type ZD-05. Data collection is carried out by inserting a capacitive soil moisture sensor into the soil. There are five types of soil used during application, namely white sand soil, black sand soil, limestone soil, clay soil and humus soil. The results of calibration using linear regression between the design tool and the reference tool obtained a gradient value m of 0.9643, close to 1. The coefficient of determination value obtained during calibration was 0.9983, so the level oflinearity between the design tool and the reference tool was 99.83%. The results of applying linear regression between the design tool and the reference tool obtained a gradient value m of 1.0041, close to 1. The coefficient of determination () obtained when applying was 0.9982, so the level of linearity between the design tool and the reference tool was 99.82%. From the results of the calibration and application of the tool, it shows that the tool design has good validity (precise accuracy).

Co-Authors Adnyana, I Gusti Agung Putra Anandika Putra, I Made Raditya Artawan, I Nengah Baskoro, Winardi Tjahyo Cory Amelia Dali Sinaga, Ade Nisa Daniel Happy Putra Dedy Pratama, I Putu Djoko Hadi Prajitno Efrensiana Ana Melti Fahik, Gracia Paula Gusti Ngurah Sutapa Gusti Ngurah, Sutapa Hadi Apriandi I G. A. Widagda I Gusti Agung Ayu Ratnawati I Gusti Agung Ngurah Ari Kusuma Putra I Ketut Putra I Ketut putra, I Ketut I Made Satriya Wibawa I Made Yuliara I Nengah Sandi I Nengah Sandi I Nengah Simpen I NYOMAN WIJAYA I Putu Wahyu Pranata Kusuma Jaya I Wayan Supardi I. M. Yuliara I. M. Yuliara I.M. Yuliara Ida Ayu Dwi Giriantari Ida Bagus Made Suryatika Ida Bagus Made Suryatika Ida Bagus Putu Priastana Bawa Irhas, Rozi Kelo, Febriyanti Jia M. Zully Amrul Hadi Made Sumadiyasa Made Suryatika, Ida Bagus Mas Janudinata, Gde Ari Mberato, Anastasia Jessing Gamalita Murzid, Jihan Qothrunada N. L. P. Trisnawati Ni Kadek Nova Anggarani Ni Kadek Nova Anggarani Ni Luh Putu Trisnawati Ni Made Wedayani Ni Nyoman Rupiasih Ni Nyoman, Ratini Ni Putu Yuni Nurmalasari Nurmalasari, Ni Putu Yuni Nyoman Wendri Pranditayana, I Nyoman Prawistya Putra, I Made Gede Mas Prayuda, I Made Ardi Putra Adnyana, I Gusti Agung Rosvita Hilbrida Sulastri Rozi Irhas Sari, Kamelin Diah Satriya Wibawa, I Made Setiawan, Yohanes Agus Silalahi, Dio Carpry Gunawan Silalahi, Johanes J. Sismanto Spardi, I Wayan Suandayani, Ni Komang Tri Sukarasa, I Ketut Tri Jaya Maghuna, Komang Trisnawati, Ni Luh Putu Umi Hariyani Wayan Balik Sudarsana Wayan Gede Suharta Widagda, I Gusti Agung Widagda, I. G. A Widiana, I Komang Widianingsih, Ni Kadek Indah Winardi Tjahjo Baskoro Winardi Tjahyo Baskoro Windaryoto Windaryoto Winer Johan Bora Yuliara, I Made Yuliara, Made

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