Uljanik (Croatia)

Student retention in introductory programming courses remains a persistent challenge in higher education, with high failure and dropout rates impacting both learners and institutions. This article presents a novel, behavior-based approach to addressing this issue through Educational Data Mining (EDM) and a custom-built learning validation framework called AssessMe. Developed by the authors in collaboration with SmoothSoft Ltd., AssessMe is an advanced software tool that monitors the real-time development of programming assignments. It captures detailed behavioral data—including active coding time, code changes (added, modified, removed lines), and submission timelines—to generate learning indicators reflecting how students approach problem-solving tasks. Unlike traditional assessment methods that focus solely on final code correctness, AssessMe emphasizes the coding process, offering deeper insights into student engagement, effort, and learning strategies. This study focuses on Programming I and II courses within the Web & Mobile Computing program at RIT Croatia. The dataset includes 3,537 student submissions from the 2024/2025 academic year, covering homework, practicals, and in-class activities, all enriched with AssessMe indicators. We apply traditional machine learning models combined with the TSFRESH library to extract meaningful time-series features from students’ coding activity. This enables the identification of temporal learning patterns and supports early prediction of academic outcomes. Our models achieve over 93% accuracy in forecasting pass/fail status by the fifth week of a 15-week semester, demonstrating a strong correlation between AssessMe indicators and final grades. This behavior-based assessment approach enhances early intervention strategies and provides actionable insights for improving student retention and learning outcomes.

Abstract This paper presents a novel Regenerative Brake Blending (RBB) strategy for an electric hypercar, framing it as a multi-objective problem. These include thermal and lifespan management of various components plus maximizing energy recovery. We begin by mathematically modelling each subsystem of the RBB layout. Then, we define an acausal offline optimal control problem to establish a benchmark solution; subsequently we propose a causal real-time control strategy inspired by the Equivalent Consumption Minimization Strategy (ECMS). The proposed real-time strategy shows a performance loss of 1.6% compared to the benchmark underscoring the efficacy of the proposed RBB strategy in maximizing energy recuperation while considering for brake temperatures.

Integration of ship design and ship production is necessary for an efficient shipbuilding process, although it requires very complex documentation planning in particular regarding its level of information and the completion scheduling. Optimally organized documentation planning could largely influence the shipbuilding total cost and lead time. Drawings finished with higher level of unreliability are shortening design phase but could result with major repair and rework activities that could increase production time and cost. On the other hand, insisting on fully completed drawings will increase design-stage time and will minimize repair and rework activities, but not necessarily the shipbuilding cost and lead time. This study researches drawing designing sequence and its unreliability due to designing with unknown, incomplete, or unreliable information. Therefore, analysis of documentation planning is performed based on their interdependence, production requirements, production technology level, and labor costs. Finally, a new approach for ship's drawings planning based on the drawing's reliability is proposed with support of developed computer application. Such approach calculates unreliability of interdependent drawings and proposes optimal documentation package regarding its level of information and lunching sequence toward production process.

In 2017 Tican Observatory started the sky survey program with aim to discover potentially hazardous asteroids and provide a follow-up observations for large sky surveys. As they started producing significant amount of data, the idea was to use their imagery for supernova search. During the Visnjan School of Astronomy 2018, group of high school students and their mentors started developing a pipeline for transient object search. Pipeline consists of 2 main parts: backend and frontend. Backend part is performing image acquisition, calibration and processing. The frontend part is used for visualization and classification of detected objects and events. The next step is to expand the search on other transient objects and to start citizen science project for transient object detection and classification.

Nýlega birtist vefsíða með gögnum Donalds Rumsfelds, varnarmálaráðherra Bandaríkjanna frá 20. janúar 2001 til 18. desember 2006. Gögnin á síðunni staðfestu þá skoðun mína að Rumsfeld hefði ráðið úrslitum um lokun Keflavíkurstöðvarinnar. Rumsfeld segir í ævisögu sinni Known and Unknown sem kom út í febrúar 2011: "Iceland was a wake-up call for me. If it was that hard to change our posture there changes elsewhere in the world would even be more difficult (bls. 304)." Af þessum orðum má draga þá ályktun að reynsla Rumsfelds af því að loka Keflavíkurstöðinni hafi ráðið miklu um framgöngu hans annars staðar. Sagan um brottför varnarliðsins er öðrum þræði lýsing á stjórnarháttum í Washington. Hvað eftir annað erum við minnt á að stóru ríkin ráða að lokum. Viðfangsefni stjórnenda annarra ríkja er að laga sig að aðstæðum án þess að fórna megin hagsmunum þjóða sinna. Þegar Ásta Möller mæltist til þess að ég ritaði þessa grein óskaði hún þess sérstaklega að ég lýsti þætti mínum í umræðum um varnarmálin undanfarin 20 ár. Í greininni leitast ég við að verða við þeirri ósk.

Shaft generators, which are inserted in the shafting between the main propulsion engine and propeller, are important source of power on ships. Detailed knowledge of electromagnetic characteristics of shaft generator is necessary for design complex ship's power system. Such knowledge is obtainable only by numerical simulations. In this paper we simulate no-load and rated load electromagnetic state in low-speed ship's generator and present methodology for calculation of reactances from field solutions. Another important problem in design of shaft generator is dimensioning of cooling system because of limited space for the generator. Therefore, we present results of numerical fluid-flow analysis of ventilator as well