Development of a GUI for automating quality control of dose calibrators using Python

Quality control of dose calibrators is essential to evaluate the accuracy of the instrument response. In this work, a GUI (Graphical User Interface) has been developed to facilitate performing and recording quality control tests of dose calibrators. The interface is capable to automate several tests which include routine checks, accuracy test, linearity test, reproducibility test, repeatability test, concordance MBq/mCi test, and geometry test. In principle, the program computes correction factors that should be applied to minimize the uncertainty of measurements and the determining factors for success or failure of each test, then visualizes the results as tables and curves into a pdf file. Therefore, this interface can be considered as an efficient tool for performing quality control tests of dose calibrators thought it is still unable to offer the correction factors for the geometry test without experiment which will be achieved by integrating Monte Carlo simulation into the GUI.

EKSPLORASI ETNOMATEMATIKA PADA KERAJINAN KAYU DI DESA TUTUL KECAMATAN BALUNG SEBAGAI BAHAN AJAR GEOMETRI

This study aims to explore anything ethnomatematics related to woodwork in Tutul Village, Jember. Woodcraft is a craft made from wood. This type of research is a study using a qualitative approach with ethnographic design. Research subjects in this study were craftsmen and owners of "Ara Collections" wood production houses. In this study the object is focused on bracelets, necklaces, and keeping. Based on the results of the study, it can be seen that wood crafts have mathematical elements. The mathematical elements found are ball, tube, cube, integrated cone, rectangular flat, circle, parabolic, ellipsoid, hyperbole, hyperbole, geometric patterns, reflection, dilation, and congruence and concordance. The teaching material made is in the form of a geometry test package related to ethnomatematics in wood crafts in Tutul Village, Balung Sub-District, Jember. Keywords: Ethnomatematics; Woodcraft; Geometry; Teaching Materials

Newman’s Error Analysis Dalam Geometri Ruang Ditinjau dari Kecerdasan Visual Siswa SMA

In solid geometry needed the ability to visualize space that cannot be seen so differences in visual intelligence can trigger errors in solving geometry problems. Therefore, this study aimed to determine the types of errors made by students and the factors that cause errors in working on geometry problems based on Newman's Error Analysis (NEA) in terms of visual intelligence. This research chose the subjects of class XII high school who had studied the material distance points to lines in space with different levels of visual intelligence, namely high and low. The process of collecting data used visual intelligence test questions, geometry test questions, and interviews. The results of this study indicated that the level of students' visual intelligence affects the difference in location and the factor that causes errors in the stage of transformation especially on determining the distance in dimension 3. Students with high visual intelligence made mistakes at the stage of transformation and encoding that caused by the students’ carelessness. However, students with low visual intelligence made mistakes at the stage of comprehension, transformation, process skills, and encoding due to the concept of the point distance to the line and the concept of the Pythagorean theorem.