Calcified plaque has a major effect on increasing plaque volume which can increase the risk of Coronary Artery Disease (CAD). The use of Filtered Back Projection (FBP) on CT-scans still has flaws in terms of image quality that can result in errors in the calculation of plaque volume. Intelli IP Advanced is hitachi CT-scan’s Iterative Reconstruction (IR) type and can improve image quality compared to FBP. The purpose of this study is to find out the comparison of calcified plaque volume in coronary arteries using FBP and Intelli IP Advanced. This study used 38 samples of coronary artery blood vessels that had calcified plaque and reconstructed using the reconstruction of FBP and Intelli IP Advanced algorithms (Levels 1-3). Plaque calculation is done automatically using aquarius intuition edition application on CT-scan Hitachi SCENARIA 128 Slice. The results in this study found significant differences (p < 0.05) in calcified plaque volume results with the use of FBP and Intelli IP Advanced algorithm reconstruction (Levels 1-3). However, significant differences are found only in algorithm reconstruction pairs (Intelli IP Advanced Level 1 and Level 3) that have a p < 0.05. The conclusion is that IR affects the volume value of calcified plaque.

English plays a vital role in the tourism field since it supports tourism workers and business owners to provide excellent services. Numerous tourism destinations in Indonesia including the ones in Blitar Regency have become the center of attention for foreign tourists. Located in Blitar, East Java, Kampung Coklat and Karanganyar Coffee Plantation have also been continuously preparing their workers and business owners to provide efficient services for both domestic and foreign visitors. In accordance with providing excellent services to foreign tourists, tourism workers and business owners are expected to have good English mastery. Objectives: This community service aims to provide a support for the tourism workers and business owners under the supervision of the Department of Tourism, Culture, Youth, and Sports and the Department of Tourism Promotion of Blitar Regency in terms of improving their English mastery, especially their communication skills in English. Methods: The activity was carried out in three stages, namely two material sessions, speaking activities, and feedback. Results: This activity gave the participants an opportunity to practice serving a customer in English. Even though it was quite challenging for some of the participants, they felt encouraged to actively participate in the speaking activities and get familiar with expressions used in tourism and hospitality services. Conclusion: The supervision and training sessions in speaking English was very enlightening for the participants to improve their English mastery in tourism services. It needs a continuation to provide greater impact to the targeted participants.