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All Journal Perfecting a Video Game with Game Metrics Jurnal Respirologi Indonesia
Dodi Sudiana
University of Indonesia
Computer Science & IT Health Professions Medicine & Pharmacology

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Switch Configuration Effect on Stray Capacitance in Electrical Capacitance Volume Tomography Hardware Arba’i Yusuf; Harry Sudibyo S; Dodi Sudiana; Agus Santoso Tamsir; Imamul Muttakin; Wahyu Widada; Warsito P. Taruno
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 14, No 2: June 2016
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v14i2.3328

Abstract

Electrical capacitance volume tomography (ECVT) system uses six switches in one channel with configuration resembling “T” letter, so it is called “T-switch”. The working scheme of the switch can be explained in four different modes of operation, i.e. excitation mode, detection mode, ground mode, and floating mode. This research describes the effect of switch configuration to stray capacitance in ECVT hardware. Stray capacitance introduces parasitic signal from other sources; one of them is signal from another electrode at floating mode when the signal is still flowing to detection circuit. One channel, two channels, three channels, so on until thirty-two channels are connected to single detection circuit sequentially to investigate the effect of stray capacitance. Both simulation and experiment show the stray capacitance increases along with addition of channel corresponds to 0.046pF for each channel.
Accuracy of Inhaler Use in COPD Patients and Factors Affecting It Indah Kusumawati Susanti; Rani Sauriasari; Anna Rozaliyani; Dodi Sudiana
Jurnal Respirologi Indonesia Vol 43, No 4 (2023)
Publisher : Perhimpunan Dokter Paru Indonesia (PDPI)/The Indonesian Society of Respirology (ISR)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36497/jri.v43i4.508

Abstract

Background: An inhaler is a type of dosage form used in the treatment of chronic obstructive pulmonary disease (COPD). The inhaler has a unique technique for use; however, the percentage of accuracy in inhaler use is still low. Proper inhaler use is expected to improve quality of life and decrease the occurrence of exacerbations. This study aimed to observe the percentage of accuracy in using inhalers and the factors that influence it.Method: This study was conducted with a cross-sectional design on COPD patients in two different hospitals. Primary data were collected using a questionnaire. The accuracy of inhaler use was assessed using a checklist.Results: The total number of patients in this study was 110, with an average age of 62 years. Patients were given single inhaler therapy, which included Dry Powder Inhalers (DPI) for 34 patients with 70.7% accuracy, Pressurized Metered-Dose Inhalers (pMDI) for 9 persons with 45.74% accuracy, and Soft Mist Inhalers (SMI) for one person with 66.67% accuracy. Furthermore, patients who used a combination of pMDI and DPI inhalers had an accuracy value of 68.53%, while a combination of pMDI and SMI had an accuracy value of 72.72%. The stage with the lowest level of accuracy in the pMDI-type inhaler used alone was exhaling before the inhaler was supplied.Conclusion:  According to the findings, the accuracy of inhaler use in COPD patients is still relatively low. Furthermore, gender is a factor that has a statistically significant relationship with inhaler accuracy.
Co-Authors Agus Santoso Tamsir Anna Rozaliyani Arba’i Yusuf Harry Sudibyo Imamul Muttakin Indah Kusumawati Susanti Rani Sauriasari Wahyu Widada Warsito P. Taruno