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Abstrak :
Latar Belakang: Ameloblastoma merupakan tumor jinak yang berkembang lambat, bertambah besar dan bersifat invasif secara lokal pada rahang. Angka rekurensi setelah tindakan pembedahan definitif dapat mencapat 50-90% dengan tatalaksana bedah konservatif dan 17% dengan tatalaksana bedah radikal. Penelitian dilakukan menggunakan machine learning Random Forest algorithm untuk memprediksi rekurensi ameloblastoma. Tujuan Penelitian: Menganalisis faktor risiko terjadinya rekurensi ameloblastoma pasca tatalaksana bedah. Metode Penelitian: Studi retrospektif Januari 2015 – Juni 2022 pada subjek yang memenuhi kriteria inklusi. Data diambil dari rekam medis pasien baik tertulis maupun digital. Analisis variabel kategorik dengan Uji Chi-Square dan Random Forest Classification and Regression menggunakan software R dalam menentukan faktor risiko terjadinya rekurensi ameloblastoma. Faktor risiko yang paling berperan dinilai dengan Mean Decrese Gini value (MDG). Hasil: Dari 97 subjek penelitian, 36 subyek (37%) mengalami rekurensi. Hasil uji Chi-square menunjukkan 4 faktor risiko memiliki hubungan secara signifikan secara statistik, antara lain faktor risiko usia, gambaran radiografis ameloblastoma, ukuran dan perluasan ameloblastoma serta modalitas perawatan terhadap ameloblastoma. Analisis multivariat menggunakan Random Forest Algorithm dengan akurasi sebesar 90,72%. Kesimpulan: Modalitas perawatan merupakan faktor risiko dominan rekurensi ameloblastoma pada penelitian ini, diikuti oleh faktor risiko ukuran dan perluasan ameloblastoma yang disimpulkan dari nilai Mean Decrese Gini (MDG). ......Background : Ameloblastoma is one of benign tumor of jaw, slow growing characteristic, able to gain enermous size of tumor and locally invasive. Considering high rate ameloblastoma recurrance 50-90% in conservative and 17% radical surgery, research conducted to predict risk factors of ameloblastoma recurrence using Random Forest algorithm, a machine learning. Objective: To evaluate risk factors for recurrence of ameloblastoma after jaw surgical treatment. Methods: Retrospective study conducted on subjects who met the inclusion criteria in term of January 2015 - June 2022. Data collected from medical record both written and digital. Cathegorical variables taken to be analyzed using Chi-Square, Random Forest to reach the risk factors of ameloblastoma recurrence. The importance of value was defined by means Mean Decrese Gini value (MDG). Result: Subjects were 97 with 36 respondents (37%) experienced recurrence. Significant correlation between the four risk factors and recurrence of ameloblastoma analyzed using Chi-Square The risk factors were age, radiographic characteristic of ameloblastoma, size and invasion of ameloblastoma to cortical bone and soft tissue, and treatment modalities. Random Forest algorithm used to evaluate multivariate analysis with 90.72% accuracy. Conclusion: This research using Mean Decrease Gini (MDG) showed the dominant importance of treatment modality as risk factor in ameloblastoma recurrence, followed by size and its invasiveness to soft tissue surrounding.

Abstrak :
Klien ketergantungan heroin yang menjalani Program Terapi Rumatan Metadon (PTRM) beresiko terjadinya masalah kekambuhan dan ketidakpatuhan, sehingga diperlukan upaya pencegahan untuk meningkatkan keterampilan strategi koping untuk mengatasi faktor dan situasi beresiko terjadi ketidakpatuhan dan kekambuhan. Penelitian quasi experimental dengan pendekatan pre-post test with control group ini ditujukan untuk mengidentifikasi pengaruh relapse prevention training (RPT) terhadap kekambuhan dan kepatuhan klien ketergantungan heroin yangmenjalani program terapi rumatan metadon di DKI Jakarta. Hasil penelitian terhadap 56 responden yang terdiri dari 28 orang kelompok kontrol dan 28 orang kelompok intervensi menunjukan peningkatan kepatuhan secara bermakna (p=0,000) pada kelompok intervensi sebelum dan sesudah dilakukan RPT. Kejadian kekambuhan terjadi 3,75 % pada kelornpok kontrol. Relapse prevention training ini direkomendasikan untuk dikembangkan sebagai bentuk pelayanan kesehatan/keperawatan jiwa bagi klien ketergantungan heroin- yang menjalani PTRM.

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Clients heroin addiction who undergo maintenance therapy Methadone Program (MMP) incompliance and relapse risk, so that prevention efforts are needed to improve the skills of coping strategies to remain obedient and recurrence can be prevented. The _research aims to find out the effect of relapse Relapse prevention training and compliance with heroin dependency clients who are undergoing methadone maintenance therapy program in Jakarta. Quasi-experimental research design approach with pre-post test control group. The results showed a significant increase in compliance in the group that conducted the RPT of S6 respondents consisted of 28 men and 28 control group the intervention group showed a significant increase in adherence (P = 0.000) in the intervention group before and after RPT. 3.75% incidence of recurrence occurred in the control group. Relapse prevention training is recommended to be developed as a form of health care I nursing soul for clients who undergo MMP heroin dependence.

Abstrak :
This paper is aimed towards analyzing and modeling earthquake interoccurence times in the Lesser Sunda Islands region using Weibull distribution. The data were classified into three categories, based on their magnitude; i.e. weak, medium, and strong earthquakes. Cumulative distribution functions and hazard rates are also explored in order to obtain the characteristics of earthquake inter-occurrences time data. Empirical results indicate the probability and rate of an earthquake recurrence time with a certain magnitude and in a certain time. Medium and weaker earthquakes have a higher chance of occurrence, reaching up to a 100% probability for the following 60 months. Meanwhile, the stronger earthquake has a 75.80% probability of occurrence. It can be seen that the earthquake occurrence probability increases together with the time increment factor.