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Affordable housing subsidised by the government in Indonesia often poses many problems, including an uncomfortable internal environment that leads to the massive use of mechanical ventilation. Designing an affordable house undoubtedly faces challenges due to the very small building lots, while it should provide many spatial needs and functions for the occupants' daily activities. Because of limited funding provided by the government, affordable house design is often based only on basic needs, thus scarcely considering thermal comfort for the occupants. This study evaluates the thermal performance of affordable houses built for the 2018 great earthquake, tsunami, and liquefaction victims in Palu's coastal area. Field measurements were conducted in an affordable housing complex, and a sample house was selected, representing a raised floor house design prototype. External and internal climate conditions were recorded for nine days to establish the hourly thermal trend. Hobo Onset H21 microclimate stations were used to record external climate conditions, whereas Onset Hobo U12-012 T-RH-Light was employed to record internal thermal conditions. The result showed that the thermal condition in the sample house was intolerably hot. The main cause of these conditions is the design of the roof and building envelope. The selected materials with a high U-value also worsen the thermal conditions in the sample house. [ABSTRACT FROM AUTHOR]

Public services in government administration must be realized immediately in order to create good governance. E-procurement as a website is an auction system for the procurement of goods and services by the government using internet-based technology, information and communication tools, but the problems that occur with this system are not yet running effectively in terms of timeliness, cost accuracy, choice accuracy and precision. targets and problems of lack of human resource capacity and supporting infrastructure, the grand theory used is timeliness, cost accuracy, choice accuracy and target accuracy. This research uses descriptive qualitative research methods using techniques to obtain data through observation, interviews and documentation. This research used 13 informants who were determined purposively, consisting of the Head of the Goods and Services Procurement Section of the Gayo Lues Regency Government and his staff, e-procurement operators, some participants in the goods/services procurement auction and some residents of the Gayo Lues Regency community. To overcome the various weaknesses that exist in the conventional goods/services procurement process, the government has introduced an innovation in the procurement of goods/services in the public sector, namely eprocurement. E-procurement is a website which is an auction system for the procurement of goods and services by the government using internet-based technology, information and communication tools. The results of the research explain that the effectiveness of the EProcurement System in Procurement of Goods and Services in the Gayo Lues Regency Government is not yet effective because there are still constraints in infrastructure and human resources which are still lacking, which affects effectiveness in procuring goods and services. The conclusion of this research is the Effectiveness of the E-Procurement System in Procurement of goods and services at the Gayo Lues Regency Government has not been effective, this can be seen from four indicators of effectiveness, namely timeliness, cost accuracy, choice accuracy and target accuracy, as well as obstacles for the Gayo Lues Regency Government in implementing the e-procurement system in the procurement of goods and services. two, namely Human Resource Barriers and Infrastructure Barriers. [ABSTRACT FROM AUTHOR]

This study aims to evaluate cognitive conflict in constructing mathematical concepts, based on thinking errors. The data were collected through observations of words or sentences, leading to the derivation of qualitative outputs. Furthermore, the results showed that the two selected subjects experienced cognitive conflicts regarding thinking errors in mathematical concept construction. This selection process was conducted through the provision of the questions obtained in the first semester of mathematics, at Universitas Negeri Makassar, Indonesia. These questions consisted of several indicators, with each of them having three components, namely the main, tracking, and supporting items. Based on the results, two subjects experienced thinking errors in constructing the concept of algebraic root form addition. This emphasized the errors in placing concepts (misplaced), pseudothinking, and misanalogy. A conflict was also observed between the initial concept knowledge of using variables in algebraic addition and the new principles understood through the root summation in algebra. Furthermore, there was also a conflict between the concept understanding he had in terms of the addition operation of the root form and a new understanding of the addition operation of the root form in algebra. [ABSTRACT FROM AUTHOR]

Augmented reality incorporates two-dimensional or three-dimensional virtual objects into a virtual reality environment, projecting these virtual objects in real time. This research aimed to increase the knowledge and skills of Hidayah Vocational High School students' understanding of the various types of network devices with an augmented reality application and developed tutorial videos on steps for creating a new atmosphere. This research model used the waterfall method. The android app that was developed went through product feasibility test stages carried out by lecturers and teachers and was declared fit for use. Then the product was tested on SMK Hidayah class XI students and declared "good." Based on the data above, it can be concluded that the android-based application in the form of a 3D Visualization Design of a Computer Network can be used to understand computer introduction material. [ABSTRACT FROM AUTHOR]

Purpose: This study investigated the factors associated with Adverse Event Following Immunization (AEFI) for Coronavirus Disease 2019 (COVID-19) in selected areas in Indonesia. Methods: We used a cross-sectional approach with a correlational research design; a total of 2,730 samples were collected using accidental sampling. The instrument was an online questionnaire. The AEFI questionnaire was a modified version of the survey instrument of the Ministry of Health, Republic of Indonesia. χ² and Fisher's exact tests were used for statistical analysis. Results: The most common AEFI were pain at the injection site (81.2%), drowsiness (77.2%), hunger (77.0%), headache (70.3%), and weakness (58.4%). Bivariate testing revealed that gender, age, disease history, vaccine type, and anxiety had statistically significant relationships with the incidence of weakness, pain at the injection site, and headache (p<.050). Age and vaccine type were significantly related to the incidence of fever, swelling at the injection site, and hunger. Gender, vaccine type, and anxiety were found to have statistically significant relationships with the incidence of nausea. Vaccine type and anxiety were significantly related to vomiting. Conclusion: The study found that gender, age, history of disease, vaccine type, and level of anxiety were associated with several adverse events following COVID-19 immunization. These findings provide data to nurses and other health workers to help them offer additional interventions to prevent or reduce adverse events in at-risk groups following COVID-19 vaccination. [ABSTRACT FROM AUTHOR]

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Tangkuban Parahu Volcano is one of the most active volcanoes in West Java, Indonesia, although most of the recent eruptions were relatively mild (e.g. 2013 eruption). However, there is still little information from the volcanic products in the proximal area. Here, a new documentation from the proximal volcanic succession is provided, including tephra-stratigraphy, componentry analysis, and petrography of volcanic products. Detailed mapping of the proximal area shows that the volcanic products are predominantly composed of alternating fine-clay and coarse ash, lapilli tuff, and pyroclastic breccia within ten tephra units. Componentry of ash particles revealed the presence of five components, associated with hydrothermally altered lithics, oxidized lithics, coherent crystalline lithics, magmatic juvenile, and free crystal in entire eruptive products. These indicate that the subvolcanic hydrothermal system has been developed since the Holocene and associated with a continual introduction of magmatic intrusion. Petrographic observation shows the presence of hydrothermal minerals of quartz or silica accompanied by alunite and kaolinite, representing acidic alteration within the crater-conduit. The existence of a silicified zone indicates that the subvolcanic hydrothermal system played an essential role as a cap-rock of pressurized gas and steam at depth (200-500 m), whereas magmatic injection caused the vapour plume expansion. The observation concluded that the proximal volcanic succession captured the evidence of coupled phreatic and phreatomagmatic activities during the latest development of Mount Tangkuban Parahu. [ABSTRACT FROM AUTHOR]