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Kappa Journal
Published by Universitas Hamzanwadi
ISSN : -     EISSN : 25492950     DOI : -
Core Subject : Science, Education,
Astronomy Physics Other
Kappa Journal (e-ISSN 2549-2950) mempublikasikan artikel hasil-hasil penelitian fisika, inovasi pembelajaran fisika, dan pemikiran-pemikiran kritis tentang fisika maupun pendidikan fisika. Kappa Journal diterbitkan oleh Universitas Hamzanwadi dua kali setahun yakni setiap bulan Juni dan Desember.
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Articles 21 Documents
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Search results for , issue "Vol 7 No 1 (2023): April" : 21 Documents clear
Metode Resitasi dengan konteks Kearifan Lokal untuk Menuntaskan Hasil Belajar Mahasiswa Calon Guru Fisika Hikmawati, Hikmawati; Verawati, Ni Nyoman Sri Putu
Kappa Journal Vol 7 No 1 (2023): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v7i1.13327

Abstract

Penelitian ini bertujuan untuk menuntaskan hasil belajar mahasiswa calon guru fisika melalui penerapan metode resitasi dengan konteks kearifan lokal. Jenis penelitian yang digunakan adalah deskriptif kuantitatif. Subyek penelitian meliputi semua mahasiswa kelas 2B yang mengikuti perkuliahan Pengantar Pendidikan pada semester genap tahun 2023 di Program Studi Pendidikan Fisika, FKIP, Universitas Mataram sebanyak 26 orang. Penelitian dilakukan sebanyak 6 kali pertemuan, sejak 13 Februari sampai dengan 20 Maret 2023. Adapun pemberian tugas dengan konteks kearifan lokal dilakukan sebanyak 2 kali. Instrumen penelitian berupa tes essay sebanyak 5 soal yang diberikan pada pertemuan ke-7. Ketuntasan hasil belajar mahasiswa dinyatakan dalam bentuk persentase. Mahasiswa dikatakan tuntas belajar secara individual bila mahasiswa tersebut memperoleh nilai minimal 75 (nilai B). Ketuntasan klasikal diperoleh bila 80% mahasiswa tuntas belajar secara individual. Hasil penelitian menunjukkan bahwa ketuntasan klasikal diperoleh sebesar 100% dengan nilai rata-rata sebesar 82.69 (nilai B+). Oleh karena itu, dapat disimpulkan bahwa semua mahasiswa kelas IIB telah tuntas belajar melalui penerapan metode resitasi dengan konteks kearifan lokal.
Aplikasi Senyawa Antosianin dari Daun Jati (Tectona Grandis) Sebagai Pigmen Warna Alami pada Kain Katun Rahayu, Susi; sasabila, sasabila; Wirawan, Rahadi; Kurniawidi, Dian W
Kappa Journal Vol 7 No 1 (2023): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v7i1.7877

Abstract

Kain tenun dari desa Sade merupakan salah satu produk tenun yang masih memegang teguh warisan leluhur dalam proses pembuatannya. Mulai dari proses pemintalan benang, sizing benang, hingga proses pewarnaan benang masih memanfaatkan metode tradisional dan bahan alami. Penggunaan serbuk pewarna alami sebagai pewarna kain katun dapat meningkatkan kualitas benang. Salah satu caranya melalui modifikasi ukuran partikel serbuk pigmen warna. Sehingga perlu dilakukan penelitian untuk mengidentifikasi pengaruh penambahan filler maltodiekstrin terhadap karakteristik serbuk senyawa antosianin. Adapun tujuan lain yaitu untuk mengidentifikasi pengaruh penambahan filler maltodiekstrin terhadap karakteristik warna kain. Pembuatan senyawa antosianin menggunakan metode maserasi dan evaporasi. Dimana karakteristik serbuk yang diperoleh diukur kadar air nya dengan pengujian proximate. Sedangkan pengukuran indeks polidispersitas dan ukuran partikel menggunakan particle size analizer  (PSA). Untuk karakteristik warna menggunakan software berbasis android  yaitu analisis nama warna dengan colorpedia, nilai ∆E dan RGB dengan color tool dan  color grab. Hasil identifikasi karakteristik serbuk menunjukkan bahwa penambahan filler mempengaruhi kadar air, ukuran, dan indeks polidispersitas serbuk senyawa antosianin. Serbuk dengan penambahan filler 15% menghasilkan kadar air terendah 10,39 %, ukuran terkecil 521,9 nm, dan indeks polidispersi terkecil 0,429. Selain itu, karakteristik warna yang dihasilkan dari penambahan filler memiliki warna dasar yang tidak jauh berbeda yaitu merah kecokelatan. Namun, hal yang berbeda adalah tingkat kelunturannya. Dari nilai ∆E, penambahan filler 15% menghasilkan kelunturan yang paling rendah. Sehingga, serbuk senyawa antosianin hasil ekstraksi dapat diaplikasikan sebagai pewarna pada kain katun. penambahan filler maltodiekstrin 15% direkomendasikan sebagai alternatif pembuatan serbuk pewarna yang diaplikasin pada kain katun.
Pengembangan Media Pembelajaran Fisika Berbasis Videoscribe Pada Materi Momentum dan Impuls Untuk Meningkatkan Berpikir Kritis Peserta Didik Doyan, Aris; Listari, Ayu; Ayub, Syahrial
Kappa Journal Vol 7 No 1 (2023): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v7i1.10116

Abstract

Learning media is a container for messages that educators want to convey to students, which aims to achieve an effective and efficient learning process. Along with the development of learning media technology, it is necessary to continue to develop so that the quality of education can get better. One of the media that can be used in learning is videoscribe. This study aims to determine the feasibility, practicality and effectiveness of videoscribe-based physics learning media that have been developed to improve students' critical thinking. This study uses the Research and Development (R&D) research method with a development model consisting of define, design, develop, and disseminate stages. Feasibility was reviewed by 6 validators consisting of 3 expert validators and 3 practitioner validators. Practicality is seen from the results of student responses and the implementation of learning. Effectiveness is seen from the results of the trial limited to 1 class at SMAN 1 Alas Barat. The research instruments consisted of videographs, validation sheets, student response questionnaires, and observation sheets of learning implementation and concept understanding tests. Data analysis techniques consist of quantitative descriptive and N-gain test. The results of the study show that learning media is feasible to use with an average of 3.4 with very good categories and research reliability reaches > 75% with reliable criteria. This research is also effective because there is an increase in students' critical thinking with an average N-gain score of 60.24 with moderate criteria. The conclusion is that videoscribe-based physics learning media is feasible, practical, and effective for increasing students' critical thinking theory of momentum and impulse
Pengaruh Model Pembelajaran Inkuiri Terbimbing Menggunakan Alat Laboratorium Terhadap Hasil Belajar Peserta Didik Silviana, Baiq Dara; Ayub, Syahrial; Wahyudi, Wahyudi
Kappa Journal Vol 7 No 1 (2023): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v7i1.8660

Abstract

The purpose of this research is to find out whether there is an influence of the guided inquiry learning model using laboratory tools on student learning outcomes.  This type of research uses an experimental type with a pretest-posttest control group design.  The sampling technique used the Cluster Random Sampling method and obtained class XI MIPA 2 with 29 students as the experimental class, and class XI MIPA 3 with 27 students as the control class.  The experimental class was given a learning treatment using a guided inquiry model using laboratory equipment, while the control class used conventional learning.  The instrument used to measure student learning outcomes is an objective test in the form of multiple choice of 25 questions.  The learning outcomes test instrument used has been tested for validity, reliability test, level of difficulty test, and differential power test.  The data analysis technique was carried out by polled variance t-test.  The results of the t-test pre-test and post-test values are (t-count) greater than (t-tables) at a significant level of 5% categorized ( ) rejected and ( ) accepted.  So it can be concluded that there is an influence of the guided inquiry learning model using laboratory tools on student learning outcomes.
Analisis Pengaruh Radiasi Elektromagnetik Pada Telepon Genggam Terhadap Kesehatan Manusia Dalam Kehidupan Sehari hari Prameswari, Abigel Dhesantia; Sudarti, Sudarti; Yushardi, Yushardi
Kappa Journal Vol 7 No 1 (2023): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v7i1.7068

Abstract

Exposure to electromagnetic radiation to humans is unavoidable due to advances in technology. Electromagnetic radiation from cell phones has many side effects that can interfere with human health. The purpose of this study is to ascertain the detrimental effects of electromagnetic radiation from cell phones on human health, which are considered in daily life. A narrative-style evaluation of the literature from several national and international periodicals. This writing is based on search results conducted online with a search engine in the form of Google Scholar literature sources with inclusion criteria of research conducted with a time limit of 10 years back with a time span of 2012-2022. This type of research is library research. The data collection technique of this research used secondary data. Cell phone use for 10 years or more significantly increases the risk of developing an acoustic neuroma. Cell phone use for one hour per day increases the risk of developing a brain tumor after 10 years or more. The effects caused by electromagnetic wave radiation from cell phones are Physiological Effects and Psychological Effects. There are efforts to minimize the effect of cell phone radiation on health.
Pemetaan Peak Ground Acceleration di Daerah Nangroe Aceh Darussalam Menggunakan Data Hasil Rekaman Sinyal Seismik Hafidzi, Aldyan; Suarbawa, Komang Ngurah; Astra, Made Kris Adi
Kappa Journal Vol 7 No 1 (2023): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v7i1.12241

Abstract

The region of Nangroe Aceh Darussalam is a region with a high frequency of earthquake due to the location where the two biggest tectonic plates meet which is the Eurasia and Indo-Australia. This research is done to map the PGA using the digital signal processing method from seismic wave recording of the earthquake that happened in Beureun County on 7th of December 2016. The result is the highest PGA is from Banda Aceh Station with the value of 0,258 gal while the lowest PGA measured is from Sinabang island station with 0,014 gal
The Relationship between Progressivism Educational Philosophy and Science and Its Relevance in the Era of the Industrial Revolution 4.0 (Society 5.0) Syahidi, Khaerus; Sarjan, Muhammad; Rokhmat, Joni; A, Syahrial; Mertha, I Gde; Arizona, Kurniawan; Syamsuddin, Syamsuddin; Sucilestari, Ramdhani
Kappa Journal Vol 7 No 1 (2023): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v7i1.7658

Abstract

Philosophy and science are human efforts to understand the concepts and methods of a scientific discipline. Changing times and developments have ushered in a philosophy of configuration by showing how the "tree of knowledge" thrives and branches out from the respective disciplines. This study aims to examine philosophy and science and their relevance in the Industrial Revolution 4.0 era. This research method uses the hermeneutic method in explaining the reality that occurs with elements of interpretation and description. The results of the research can be described that the study of the relationship between philosophy and science has developed so rapidly. Philosophy and science are indispensable in the development of science and technology which is marked by sharpening of scientific specialization, because by studying philosophy scientists are expected to be aware of its limitations so as not to get caught up in intellectual arrogance. It is impossible to fight against the discourse on the development of science and technology, but rather to reduce the negative impact of technology itself. In the era of the Industrial Revolution 4.0 and Society 5.0, community groups are heterogeneous, so that very complex problems arise related to technological developments and can change the mindset of human life to patterns of life that are more sophisticated with the power of technology. like robots and the internet. Thus, science which is used as an axiological milestone in directing and controlling the development of science and technology in a positive way for the benefit of humanity and its environment is philosophy and science.
Pengaruh Sinar Ultraviolet Terhadap Jamur Aspergillus Niger Ayu Ratnawati, I Gusti Agung; Putra, I Ketut; Suryatika, Ida Bagus Made; Sutapa, Gusti Ngurah; Trisnawati, Ni Luh Putu
Kappa Journal Vol 7 No 1 (2023): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v7i1.12252

Abstract

Along with the development of science and technology, some researchers try to apply knowledge to several biological systems to obtain benefits that can be used. One of them is the use of ultraviolet light to kill the fungus Aspergillus niger. In addition, ultraviolet rays are also used in various fields of the drinking water industry, food, and also for sterilizing operating rooms in hospitals. A method used in this problem is the cork borer method. Data were obtained by measuring the diameter of the inhibition zone of the Aspergillus niger fungus. The results of this study were obtained at the intensity of 12.30 lux and at a distance of 15cm, within 15 minutes of irradiation time, the maximum death of the fungus Aspergillus niger was 40.74%.
Pengaruh Multi Leaf Collimator (MLC) Terhadap Besar Dosis Yang Diterima Bagian Kepala Pasien Kanker Otak Huki, Pascalia Agno Marina; Sutapa, Gusti Ngurah; Sudarsana, I Wayan Balik
Kappa Journal Vol 7 No 1 (2023): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v7i1.6633

Abstract

Research has been conducted on the effect of Multi Leaf Collimator (MLC) on the dose received by the head of brain cancer patients at Sanglah Hospital, Denpasar. This analysis aims to determine the effect of using MLC on dosing to brain cancer patients using Cobalt 60 (Co-60) teletheraphy. The dose given at TPS was 200 cGy but after using MLC the dose was received because MLC protects healthy organs around the irradiation field. If the dose given is still within the range of -5  % and +7  %, it is still acceptable. The amount of radiation dose that can be reduced by using MLC in this study was 1,35 % for brain cases and 0,12 % for Glioblastoma cases. 
Potensi Kanker Usus Besar dan Kandung Kemih Akibat Penyinaran CT Scan Abdomen Merek Siemens Somatom 128 Slice di RSUP Sanglah Denpasar Galingging, Sari Intan; Sandi, I Nengah; Sudarsana, I Wayan Balik
Kappa Journal Vol 7 No 1 (2023): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v7i1.7047

Abstract

Research has been carried out on the potential for colon and urinery bladder cancer as a result of irradiating a 128 slice Siemens Somatom abdominal CT Scan at Sanglah Hospital, Denpasar. The data used in this study are secondary data from abdominal CT Scan medical records from January 2021 to June 2022, namely, CTDIvol and DLP adult patients who are female and male with an exposure factor of 110 kV X-ray tube voltage and current. Irradiation time starts from 600 mAs to 1200 mAs. This study aims to determine the potential risk of cancer  of the colon and urinery bladder from the results of the CT Scan examination brand Siemens Somatom 128 Slice and to compare the potential risks of colon and bladder cancer in men. and women. The magnitude of is done by calculating the estimated dose equivalent of yang diterima pasien dikalikan dengan faktor risiko kanker organ kritis pada pasien dewasa, sedangkan analisis komparatif dilakukan dengan menggunakan Independent Sample T Test. Hasil perhitungan rata-rata usus besar pada wanita dan pria masing-masing adalah 0,0044 ± 0,00062% dan 0,0045 ± 0,00079% sedangkan rata-rata  kandung kemih pada wanita dan pria masing-masing adalah -0,0034±0,00049% dan 0,0035±0,00061%. Terdapat perbedaan yang bermakna potensi kanker usus besar dan kandung kemih antara wanita dan pria dengan nilai P<0,050 pada usus besar dan kandung kemih yaitu masing-masing 0,026 dan 0,025. Perbedaan rata-rata kanker usus besar dan kandung kemih antara wanita dan pria adalah masing-masing 0,0001±0,00017% dan 0,0001±0,00012%, dimana potensi terjadinya kanker baru pada pasien pria lebih besar dibandingkan pasien wanita.

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