Articles
Low-dose computed tomography image denoising using graph wavelet transform with optimal base
Setiawan, Iwan;
Hidayat, Rachmat;
Najar, Abdul Mahatir;
Jaya, Agus Indra;
Rosiyadi, Didi
International Journal of Electrical and Computer Engineering (IJECE) Vol 15, No 2: April 2025
Publisher : Institute of Advanced Engineering and Science
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DOI: 10.11591/ijece.v15i2.pp1696-1708
Noise in electronic components of computed tomography (CT) detectors behaves like a virus that infects visual quality of CT scans and might distort clinical diagnosis. Modern CT detector technology incorporates high-quality electronic components in conjunction with signal and image processing to ensure optimal image quality while retaining benign doses of x-rays. In this study, a new strategy in signal and image processing directions is proposed by finding the most optimal wavelet base for denoising low-dose CT scan data. The process begins by selecting the appropriate wavelet bases for CT image denoising, followed by a wavelet decomposition, thresholding, and reconstruction. Other methods, such as graph wavelet and learning-based, are used to assess the consistency of the outcomes. The wavelet base of biorthogonal 5.5 achieves the highest optimum performance for CT image denoising. Meanwhile, the Daubechies wavelet base is inconsistent and performs poorly compared to the optimum base. This research highlights the importance of wavelet properties such as orthogonality, regularity, and the number of vanishing moments in selecting an appropriate wavelet basis for noise reduction in CT images.
Kebugaran Jasmani: Permainan Tradisional Sebagai Warisan Budaya
Alif Tunru, Andi;
Hidayat, Rachmat;
Syarif Burhan, Ahmad
Pendas Mahakam : Jurnal Pendidikan dan Pembelajaran Sekolah Dasar Vol. 9 No. 3 (2024): December
Publisher : Teacher Training and Education Faculty, Widya Gama Mahakam Samarinda University
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Traditional games are forms of play or sports activities that possess unique regional characteristics and are adapted to local cultural traditions. The study aims to determine whether traditional games, as a cultural heritage, influence the improvement of physical fitness among students aged 10-12 years at SDN 024 Samarinda Utara. The research results indicate a significant influence of the traditional game gobak sodor on improving physical fitness among students aged 10-12 years at SDN 024 Samarinda Utara. The conclusion is that incorporating traditional games into the physical education curriculum can serve as an effective strategy for enhancing students' overall health and physical fitness.
Analysis of Main Facilities Utilization in Lambada Fishery Port, Aceh Besar
Kurnia, Kurnia;
Syahputra, Faisal;
Hidayat, Rachmat;
Rahayu, Rosi
Jurnal Perikanan Terpadu Vol 5, No 2 (2024): Jurnal Perikanan Terpadu Volume 5 Nomor 2
Publisher : Universitas Teuku Umar
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DOI: 10.35308/jpterpadu.v5i2.10322
The purpose of this study was to determine the level of utilization of basic facilities at the Lambada Fishing Port, Aceh Besar. This study was located at the Lambada Fishing Port, Aceh Besar. The data taken in this study were secondary data, this data was taken directly at the Lambada Fishing Port management office, namely data on fishing gear, catches, fishing fleets and facilities at the port. While primary data was taken directly at the Lambada Fishing Port using questionnaires, observations and interviews. The interview method used was the purposive sampling method. Analysis of basic facilities at the Lambada Fishing Port was carried out by calculating the level of facility utilization. The results showed that the Lambada Fishing Port has an area of 1 Ha. The pier which is 400m long, the utilization rate only reached 70,75%. The area of the port pool is 3 Ha, but the utilization rate is only 3%. The depth of the port pool is also not optimal when viewed from the number of fishing boat fleets that have run aground when anchored at the Lambada Fishing Port. The strategy that can be suggested is to improve the facilities and infrastructure according to the needs and provisions to support good fisheries activities
Pengaruh Latihan Berpasangan Terhadap Keterampilan Passing Bawah Pada Siswa Ekstrakurikuler Bola Voli di SMK Negeri 1 Palopo
Sepang, Rosa Marten;
Hidayat, Rachmat;
Pribadi, Imam
Jurnal Porkes Vol 8 No 1 (2025): PORKES
Publisher : Universitas Hamzanwadi
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DOI: 10.29408/porkes.v8i1.27485
The purpose of this study was to examine the effect of paired training on lower passing skills in volleyball extracurricular students. This type of research is quantitative, using the pretest-posttest design experiment method. The subjects were all 12 volleyball extracurricular students at SMK Negeri 1 Palopo. The research instrument used a lower passing skill test. The data analysis technique used descriptive analysis, data normality test, homogeneity test, and paired sample t-test according to the significant level α = 0.05. The results showed that there was a significant effect in paired training on volleyball lower passing skills with a t value of 7.137 > t table 2.179 and sig. (2-tailed) is 0.000 < 0.05. The average value of the lower passing pretest is 2.108 and the average value of the lower passing posttest is 2.542 there is a difference between groups of -434. The conclusion is that there is a significant effect on paired training on volleyball extracurricular students at SMK Negeri 1 Palopo.
Pengaruh Sarana & Prasarana Mata Pelajaran Pendidikan Jasmani Terhadap Minat Belajar Siswa Kelas X SMK NEGERI 2 LUWU UTARA
Samsuri, Fhadil Hidayat;
Hidayat, Rachmat;
Saman, Saman;
Riswanto, Andi Heri;
Jalil, Rasyidah
Jurnal Porkes Vol 8 No 1 (2025): PORKES
Publisher : Universitas Hamzanwadi
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DOI: 10.29408/porkes.v8i1.27547
This study aims to measure the extent to which physical education facilities and infrastructure affect class X students' interest in learning at SMKN 2 North Luwu. Using a quantitative descriptive method with a correlational approach, this study involved 226 students as a population and 33 students as a sample, selected through purposive random sampling technique. Data were collected through observation, questionnaire, and documentation. The results of the analysis show that 36% of facilities and infrastructure are in the medium category, while 43% of interest in learning is in the low category. The regression test resulted in an F value of 23.418 and a significance value of 0.000, indicating a significant influence between facilities and infrastructure and interest in learning. The R value of 0.612 indicates that facilities and infrastructure have a strong relationship in influencing interest in learning.
Keterampilan Smash Bola Voli Ekstrakurikuler SMPN 2 Bua Ponrang : Peran Kondisi Fisik
Tanjung, Enha Syahrul;
Hidayat, Rachmat;
Nasriandi, Nasriandi
Jurnal Porkes Vol 8 No 1 (2025): PORKES
Publisher : Universitas Hamzanwadi
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DOI: 10.29408/porkes.v8i1.27560
The purpose of this study was to determine the role of physical condition on volleyball smash skills. This research method uses quantitative methods with descriptive correlational research design. The number of samples used in this study were 14 students at SMPN 2 Bua Ponrang. The population in this study were all extracurricular students of SMPN 2 Bua Ponrang. The results of statistical analysis of the prerequisite test (normality test) obtained a physical condition value of 0.989 with a significant level of 0.999 or 0.999> 0.05 and a smash skill value of 0.946 with a significant level of 0.498 or 0.498> 0.05, so it can be said that the physical condition value and smash skill value are normally distributed. The results of the linearity test of physical condition data on smash skills with an F value of 2.670 and a significant level of 0.447 are greater than α 0.05, so it is said to be linear. From the results of the regression test data analysis, the F value is 22.324 and the significance value is 0.000. Because the calculated F value (22.324)> (4.725) and the significance value is smaller than 0.05 (0.000 <0.05), then H1 is accepted which indicates that physical condition has a significant influence on students' extracurricular smash skills. It is concluded that physical condition has a significant role in students' volleyball smash skills at SMPN 2 Bua Ponrang.
Peningkatan Hasil Belajar Passing Kaki Bagian Dalam dengan Menggunakan Modifikasi Permainan Sepak Bola pada Siswa SD Negeri 375 Lalong Selatan
Rety, Alghazali;
Ahmad, Ahmad;
Riswanto, A. Heri;
Hidayat, Rachmat;
Nur, Suaib
Jurnal Porkes Vol 8 No 1 (2025): PORKES
Publisher : Universitas Hamzanwadi
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DOI: 10.29408/porkes.v8i1.27616
This study aims to improve the learning outcomes of passing using the inner foot with modified soccer games. This research uses the PTK method. The population of this study were all IVa students of SDN 375 Lalong Selatan totaling 25 students divided into two classes. The sample used was all fourth grade students of SDN 375 South Lalong. Data collection techniques carried out tests of inner leg passing ability. The results of this study indicate that in cycle I there were 5 students who were complete, meaning that the classical completeness reached (20%) in the knowledge aspect, there were 9 students who were complete, meaning that the classical completeness reached (36%) in the attitude aspect and there were 10 students who were complete, meaning that the classical completeness reached (40%) in the skill aspect. while in the results of cycle II there were 25 students who were complete, while in the results of cycle II there were 25 students who were complete, meaning that the classical completeness reached (100%) in the knowledge aspect, there were 23 students who were complete, meaning that the classical completeness reached (92%) in the attitude aspect, there were 24 students who were complete, meaning that the classical completeness reached (96%) in the skill aspect. This shows that there is a significant increase between cycle I and cycle II. Thus the modification of soccer games can improve the learning outcomes of inner leg passing.
Analisis Kondisi Fisik dan Psikis Terhadap Kemampuan Smash Kedeng Sepak Takraw
Bemba, Tonia;
Riswanto, Heri;
Saman, Saman;
Hidayat, Rachmat;
Ainun, Nur;
Muallin, Muallin
Jurnal Porkes Vol 8 No 1 (2025): PORKES
Publisher : Universitas Hamzanwadi
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DOI: 10.29408/porkes.v8i1.29302
This study aims to examine the relationship between physical and psychological conditions on the ability to smash kedeng sepak takraw. This method uses descriptive quantitative. The population of this study was sepak takraw extracurricular students of SMAN 5 Palopo, a sample of 12 students. Research instruments and data collection techniques using leg muscle strength tests, leg explosive power tests, flexibility tests, motivation tests, self-confidence tests, kedeng smash accuracy tests. Data processing using SPSS. The results of the research F value of physical condition of smash kedeng 48.132, a significant value of 0.000 then H1 is accepted which shows X1 has a significant influence on Y, the R value of 0.910 indicates that the ability of the dependent variable is strong. The F value of psychic smash kedeng 25.424 and a significant value of 0.001 then H2 is accepted which shows X2 has a significant effect on Y, the R value of 0.847 indicates that the ability of the dependent variable is strong. While the F value of physical and psychological conditions for kedeng smash is 39.852 and a significant value of 0.000, H3 is accepted which shows X1-X2 have a significant effect on variable Y, the R value of 0.948 indicates that the ability of the dependent variable is strong. It is concluded that the regression test shows a positive relationship between physical and psychological conditions with the ability to smash kedeng.
Strategi Komunikasi Politik dalam Resolusi Konflik Pemindahan Ibu Kota Negara Indonesia: Pendekatan Konstruktif dan Kolaboratif
Hidayat, Rachmat;
Rahmat Saleh;
Herman Paninggiran;
Yusnaini;
Jamalullail
Jurnal Spektrum Komunikasi Vol 13 No 1 (2025): Jurnal Spektrum Komunikasi : March 2025
Publisher : LPPM Stikosa - AWS
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DOI: 10.37826/spektrum.v13i1.867
The relocation of the capital city of Indonesia from Jakarta to East Kalimantan is a strategic policy that presents various challenges, including complex political conflicts. This conflict involves the rejection by indigenous communities regarding land rights, concerns about environmental impacts, and the lack of public participation in the decision-making process. This research aims to examine the role of communication in managing the political conflicts arising from this policy. Through the application of Conflict Theory by Littlejohn, Constructive Controversy by Peter T. Coleman, and the Theory of Cooperation and Competition by Morton Deutsch, this research analyzes the role of communication in alleviating conflicts, building cooperation, and achieving consensus among stakeholders. This research applies the Systematic Literature Review (SLR) method to identify studies related to political communication and conflict resolution in the context of public policy during the period 2022–2024. The research findings indicate that public resistance can be attributed to the inadequacy of inclusive narratives and the lack of participatory dialogue. A communication approach that prioritizes collaboration through constructive dialogue and narratives reflecting shared interests has the potential to transform destructive conflicts into more productive negotiation processes. The conclusion drawn from this study is a recommendation for the implementation of clearer communication strategies, involving all parties, and focusing on collaboration to create agreements among stakeholders.
The Relationship between Feeding Patterns and Stunting Incidence in Toddlers Aged 12-59 Months in the Working Area of Pembina Health Center, Plaju, Palembang, Indonesia
Hidayat, Rachmat
Scientific Journal of Pediatrics Vol. 1 No. 1 (2023): Scientific Journal of Pediatrics
Publisher : Phlox Institute: Indonesian Medical Research Organization
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DOI: 10.59345/sjped.v1i1.196
Introduction: Stunting is a linear growth disorder caused by malnutrition and chronic infectious diseases. The food intake of a child is very highly influenced by parental feeding patterns. The more optimal the feeding of a child, of course, the more optimal the growth and development of the child, where the factor of nutrition greatly affects the growth of a child's body. This study aimed to determine the relationship between feeding patterns and the incidence of stunting in toddlers aged 12-59 months in the working area of Pembina Health Center, Plaju, Palembang, Indonesia. Methods: This study is a cross-sectional analytic observational study. A total of 100 research subjects participated in this study. Analysis of sociodemographic data and feeding patterns was carried out using SPSS software univariate and bivariate. Results: The study results show that the majority of the subject with poor feeding patterns have a greater proportion of stunting events. Meanwhile, research subjects with good feeding patterns had a smaller proportion of stunting events. The results of this study indicate that the pattern of feeding in children is related to the incidence of stunting, p<0.05. Conclusion: The pattern of feeding children is related to the incidence of stunting in toddlers aged 12-59 months in the working area of Pembina Health Center, Plaju, Palembang, Indonesia.