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All Journal Jurnal Online Mahasiswa (JOM) Bidang Ilmu Sosial dan Ilmu Politik Jurnal Elementer (Elektro dan Mesin Terapan) JURNAL ILMU KEFARMASIAN INDONESIA Dielektrika : Jurnal Ilmiah Kajian Teori dan Aplikasi Teknik Elektro Journal of Educational Administration and Leadership (JEAL)

Ryan Pratama

Unknown Affiliation

Author-ID : 2783478

Computer Science & IT Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Mechanical Engineering Medicine & Pharmacology Social Sciences Other

Published : 5 Documents Claim Missing Document

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Articles

PENGAPLIKASIAN METODE INTERPOLASI DAN EKSTRAPOLASI LAGRANGE, CHEBYSHEV DAN SPLINE KUBIK UNTUK MEMPREDIKSI ANGKA PENGANGGURAN DI INDONESIA Ryan Pratama; R.H Sianipar; I Ketut Wiryajati
DIELEKTRIKA Vol 1 No 2 (2014): DIELEKTRIKA
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Mataram

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Interpolasi adalah taksiran harga-harga diantara titik-titik diskrit didalam bentangan data benar-benar tepat dan pendekatannya adalah mencari kurva tunggal atau sederetan kurva yang tepat melalui titik-titik tersebut. Jenis interpolasi yang digunakan adalah Interpolasi Lagrange, Chebyshev, dan Spline Kubik. Metode ini di implementasikan pada peramalan data time series untuk memprediksi angka pengangguran di Indonesia. Proses pengujian menghasilkan nilai rata-rata RMSE yang paling kecil pada Interpolasi Chebyshev yaitu 159.786. Secara visual untuk Interpolasi Spline kubik menunjukan gambar yang paling baik dalam mengikuti dinamika data yang ada.

Persepsi dan Harpan Guru terhadap Iklim Sekolah Menengah Kejuruan Negeri (SMKN) 2 Padang Ryan Pratama; Hadiyanto Hadiyanto; Ermita Ermita; Nelfia Adi
Journal of Educational Administration and Leadership Vol 1 No 3 (2021): Volume 1 No 3 Tahun 2021
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jeal.v1i3.63

The purpose of this study was to find data and information regarding teachers' perceptions and expectations of the school climate in terms of 1) support to students, 2) leadership, 3) student participation, 4) encouragement, 5) clarity of rules, 6) cooperation, 7) care for students, 8) completeness of resources. This research is a descriptive study. The population of this study were all teachers in Vocational High School 5 Padang with a total population of 100 people. This research is a population research, that is, if the subject is more than 100, it is better to use Stratified Proportional Random Sampling, namely the technique of determining the sample using the Slovin formula with the sum of 50 teachers. The research instrument is a questionnaire with a Likert scale model that has been tested for validity and reliability. The collected data were analyzed using the mean (average) formula. Teachers' perceptions and expectations of the school climate in Vocational High School 2 Padang are in the category of good enough perception with an average score of 3.4 while expectations are in the good category with an average score of 4.1.

Formulasi dan Evaluasi Larutan Pencuci Mulut dengan Bahan Antimikroba Senyawa 1,5-Bis (3’-Etoksi-4’-Hidroksifenil)-1,4-Pentadien-3-on Esti Mumpuni; Agus Purwanggana; Esti Mulatsari; Ryan Pratama
JURNAL ILMU KEFARMASIAN INDONESIA Vol 17 No 1 (2019): JIFI
Publisher : Fakultas Farmasi Universitas Pancasila

1,5-bis (3-ethoxy-4-hydroxyphenyl) -1,4-pentadien-3-one (EHP) compound is an analogous compound of curcumin which has antimicrobial activity. In this study, the formulation and evaluation of mouthwash was carried out with EHP as an antimicrobial ingredient. The formulation of mouthwash was made with various concentrations of EHP 3, 6, 12, 16 and 18 ppm. Evaluation of mouthwash included organoleptic test, pH, clarity, density and antimicrobial activity against Staphylococcus aureus, Steptococcus mutans, and Candida albicans. Antimicrobial test was done by agar diffusion method. The results of organoleptic test obtained mouthwash was clear blue liquid, the aroma of mint, and fresh cold taste; pH range of 6.15 - 6.74; density of 1.0419 - 1.0561 g/cm3. The evaluation of mouthwash showed that the mouthwash was stable in storage for 1 month at 40 °C. Antimicrobial tests showed the diameter of inhibitory zone against Staphylococcus aureus (ATCC 6538); Streptococcus mutans (ATCC 31987) and Candida albicans (ATCC 10231) ranged from 6.2 to 8.4 mm at the concentration of EHP 18 bpj. The results showed that EHP compound was potential as antimicrobial ingredient in moutwash formula.

Sistem Pengontrolan dan Monitoring Budidaya Sarang Burung Walet Berbasis Android Cyntia Widiasari; Ryan Pratama; Wiwin Styorini
Jurnal Elektro dan Mesin Terapan Vol. 7 No. 2 (2021): Jurnal Elektro dan Mesin Terapan (ELEMENTER)
Publisher : Politeknik Caltex Riau

In the cultivation of swallow nests, swallow breeders experience problems, especially in maintaining the temperature and humidity of the room in the wallet bird house. Swallow breeders must be able to maintain a stable temperature and humidity and maintain the safety of the swallow from owl pests. When the temperature is hot, the swallow room will become dry so that the nest becomes damaged and the swallow feels uncomfortable living in the nest. Based on this, a control and monitoring system for swallow nest cultivation based on Android was created. This system can help reduce the temperature and humidity in the swallow nest room using a dew machine that works automatically and the swallow room door can open/close automatically using an application on a smartphone. This system can work well if given a supply voltage of AC220V and DC12V. The dew machine will work (ON) if the temperature is above 29°C or the humidity is less than 70%. The sensor read data will be sent by the NodeMCU to the blynk server and displayed on the smartphone. The swallow room door can be opened or closed based on the light intensity value measured on the LDR sensor which is then sent to the NodeMCU to drive the motor driver and stepper motor. With this system, farmers are expected to be able to monitor and control the condition of swallow’s nests using the blynk application on smartphones in real time. Key words: Swallow's nest, temperature, humidity, swallow room door, dew machine, blynk application

PELAKSANAAN TUGAS POKOK DAN FUNGSI KANTOR WILAYAH HUKUM DAN HAM RIAU DALAM PEMBINAAN WARGA BINAAN LEMBAGA PEMASYARAKATAN KELAS IIA BENGKALIS Ryan Pratama; Erman M
Jurnal Online Mahasiswa (JOM) Bidang Ilmu Sosial dan Ilmu Politik Vol. 10: Edisi II Juli - Desember 2023
Publisher : Fakultas Ilmu Sosial dan Ilmu Politik Universitas Riau

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The increase in crimes that often occur in the community has caused prison sentences to soar, resulting in overcapacity. The Riau Province Regional Office of Law and Human Rights has the main tasks and functions in carrying out legal services throughout the territory of Riau Province. One of them is coaching inmates at the Bengkalis Class IIA Penitentiary. Less than optimal coaching can result in prisoners not getting the purpose of the correctional system so that they have the potential to recidivate after being released from their punishment period. There are several obstacles that result in the coaching carried out at the Bengkalis Class IIA Penitentiary not running smoothly. There needs to be an effort by the Riau Regional Office of Law and Human Rights in coaching activities and overcoming the problem of overcapacity at the Bengkalis Class IIA Penitentiary. This study aims to determine the implementation of the main tasks and functions carried out by the Riau Regional Office of Law and Human Rights in providing guidance to prisoners at the Bengkalis Class IIA Penitentiary. This research method uses a qualitative approach with descriptive research type. The research location was at the Riau Regional Office of Law and Human Rights and the Bengkalis Class IIA Penitentiary. The data collection techniques used were interviews and documentation. The results showed that implementation of the Mandate and Function of Riau Regional Office of Law and Human Rights in rehabilitating is monitoring and evaluation. It aims to analyze all coaching activities at the Bengkalis Class IIA Penitentiary which is given the freedom to plan and carry out rehabilitation according the talents and interests of inmates. Development activities are carried out based on indicators of the success of improving the quality of individual prisoners. However, the implementation of coaching has not optimally because several obstacles. Obstacles such as overcapacity, quality and quantity of officers, limited facilities and limited participation in the rehabilitation activity. Keywords: Mandate and Functions, Rehabilitation, Inmates

Co-Authors Agus Purwanggana Andrian Dektisa Hagijanto Cyntia Widiasari Erman M Ermita Ermita Esti Mulatsari Esti Mumpuni Goey Stefany Gunawan I Ketut Wiryajati Nelfia Adi R.H Sianipar TATI NURHAYATI Wiwin Styorini

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