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Passive safety systems are integrated into the latest generation of Light Water Reactors (LWRs), including small modular reactors. This paper employs the US-NRC TRACE thermal hydraulic code to examine the performance of a passive safety condenser known as SACO, designed to serve as the ultimate heat sink for dissipating decay heat during accident scenarios. The TRACE model is constructed with reference to the PKL/SACO test facility. The safety condenser (SACO) is interconnected with the PKL facility via the secondary side of steam generator 1, effectively serving as a third natural circulation cooling loop during accident scenarios. In the present research, the thermal-hydraulic behavior of the PKL facility is investigated in the presence of the SACO passive safety system during an extended SBO with Loss of AC Power accident scenario. This SBO can be categorized into three distinct phases depending on the activation of the SACO system and the refilling process of the SACO pool. The first phase is depressurizing using primary and secondary relief valves, the second phase is cooling down using SACO system, and the third phase is the refilling of SACO pool. The findings indicate that the SACO system effectively manages to dissipate all decay heat, even though there is temporary evaporation of the SACO water pool. Furthermore, this study provides sensitivity analysis for the assessments of system codes on the selection of maximum time step.

High-quality seeds provide valuable nutrients to human society and ensure successful seedling establishment. During maturation, seeds accumulate storage compounds that are required to sustain seedling growth during germination. This review focuses on the epigenetic repression of the embryonic and seed maturation programs in seedlings. We begin with an extensive overview of mutants affecting these processes, illustrating the roles of core proteins and accessory components in the epigenetic machinery by comparing mutants at both phenotypic and molecular levels. We highlight how omics assays help uncover target-specific functional specialization and coordination among various epigenetic mechanisms. Furthermore, we provide an in-depth discussion on the Seed dormancy 4 (Sdr4) transcriptional corepressor family, comparing and contrasting their regulation of seed germination in the dicotyledonous species Arabidopsis and two monocotyledonous crops, rice and wheat. Finally, we compare the similarities in the activation and repression of the embryonic and seed maturation programs through a shared set of cis-regulatory elements and discuss the challenges in applying knowledge largely gained in model species to crops. [ABSTRACT FROM AUTHOR]

The 2003 National Education System Law outlines the purpose of national education, emphasizing vocational education as secondary education aimed at preparing students for specific fields of work. However, the COVID-19 pandemic has created challenges in achieving these goals, prompting a need for evaluation and solutions. To address this, a program evaluation is proposed, focusing on analyzing the Industrial Work Program (PKL) in terms of design, implementation, process, and outcomes. The evaluation aims to assess the alignment between program objectives and actual results, considering factors such as program design, HR requirements, implementation scope, street vendors' involvement, and outcomes for schools, students, and industry partners. The Discrepancy Evaluation Model (DEM) by Malcom Provus is chosen for its ability to compare expectations with reality. The evaluation will employ both quantitative and qualitative methods, utilizing questionnaires, observations, interviews, and document analysis. Qualitative data analysis involves activities such as data reduction, display, validation (triangulation), and conclusion drawing, while quantitative analysis utilizes descriptive percentage analysis. The research seeks to generate recommendations that improve education quality and program evaluation practices, particularly in ICT-based competency development during the pandemic transition. By providing a detailed evaluation, the study aims to offer actionable insights for enhancing the PKL program's effectiveness and contributing to educational advancement. [ABSTRACT FROM AUTHOR]

Internship (INTERNSHIP) is an important part of the vocational education curriculum in vocational high schools, including SMK Negeri 1 Gesi. However, its implementation often faces various obstacles, such as inefficient communication, delayed reporting, and difficulties in monitoring student progress. To address these issues, an Internship monitoring system has been developed with the aim of optimizing the learning process. Therefore, this research aims to develop a internship monitoring system that is suitable for use by vocational high school students to support their activities. The research method applied in this study is research and development adopting the Alessi & Trollip model. The research subjects include software/media experts, content experts, and teachers. Data collection is carried out using observation, interviews, and questionnaires. The data obtained from the research is then analyzed qualitatively descriptively and quantitatively in terms of percentage. The research results show that in the alpha testing phase, the internship monitoring system product received a High Validity qualification from experts. Based on these results, it can be concluded that the internship monitoring system product deserves the category of high feasibility to use as an application or system to support a series of internship activities, both for teachers and students.

The objectives of this study are: (1) to find out the policy of the Surakarta City Government in organizing street vendors in Laweyan, (2) to find out the extent of the Surakarta City Government's policy in improving the welfare of street vendors. The approach used in this study is a qualitative approach. The research location is in Laweyan, Trade Office in the field of PKL Management and Satpol PP Surakarta City. The focus of this research is the policy of the Surakarta City Government in organizing street vendors in Laweyan, the extent of the Surakarta City Government's policy in improving the welfare of street vendors. The primary data sources in this study are street vendors in Laweyan, officers of the Trade Office of the PKL Management section, officers of Satpol PP Surakarta City. The results showed that to overcome the problem of mushrooming street vendors, the Surakarta City Government issued Regional Regulation Number 3 of 2008. In its implementation, the Regional Regulation is assisted by the existence of Guardian Number 17B of 2012 and also Mayor Decree Number 510 of 2012. The policy issued by the Surakarta City Government empowers street vendors in the form of providing cart assistance, capital assistance, counseling and also cart and umbrella assistance. [ABSTRACT FROM AUTHOR]

High-quality seeds provide valuable nutrients to human society and ensure successful seedling establishment. During maturation, seeds accumulate storage compounds that are required to sustain seedling growth during germination. This review focuses on the epigenetic repression of the embryonic and seed maturation programs in seedlings. We begin with an extensive overview of mutants affecting these processes, illustrating the roles of core proteins and accessory components in the epigenetic machinery by comparing mutants at both phenotypic and molecular levels. We highlight how omics assays help uncover target-specific functional specialization and coordination among various epigenetic mechanisms. Furthermore, we provide an in-depth discussion on the Seed dormancy 4 (Sdr4) transcriptional corepressor family, comparing and contrasting their regulation of seed germination in the dicotyledonous species Arabidopsis and two monocotyledonous crops, rice and wheat. Finally, we compare the similarities in the activation and repression of the embryonic and seed maturation programs through a shared set of cis -regulatory elements and discuss the challenges in applying knowledge largely gained in model species to crops., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2024 Go, Lu, Alizadeh, Gazzarrini and Song.)