Simultaneous state and input estimation with application to a two-link robotic system

This paper addresses the problem of estimating simultaneously the state and input of a nonlinear system with application to a two link robotic manipulator - the Pendubot. The system nonlinearity comprises a Lipschitz function with respect to the state, and a nonlinear term which is a function of both the state and input. It is shown that under some conditions, an observer can be designed to estimate simultaneously the system&rsquo;s state and input. Simulation and experimental results, obtained around the inverted equilibrium position, are presented to demonstrate the validity of the approach.<br /

Le portail g-INFO pour surveiller la grippe Influenza A

Le portail g-INFO pour surveiller la grippe Influenza

Key drivers and barriers affecting the adoption of electric vehicles in Tampere

The adoption of electric vehicles (EVs) is a critical component of sustainable urban mobility and climate change mitigation efforts. As cities try to reduce greenhouse gas emissions and transition toward cleaner transportation options, understanding the factors influencing EV adoption be comes increasingly important. This study explores the key drivers and barriers affecting the adop tion of EVs in Tampere, Finland, using a survey-based research method administered through Microsoft Forms. The research targets current car owners and potential car buyers, collecting data on perceptions, financial considerations, infrastructure availability, and policy aware ness. The results indicate that financial concerns, particularly the high purchase cost, are the most significant barrier to EV adoption. Environmental motivations and technological improvements serve as strong incentives. The study concludes that policy efforts in Tampere should focus on targeted financial support, improved infrastructure, and enhanced public awareness to encourage a more inclusive and accelerated transition to electric mobilit

DESIGNING A TEACHING PROCESS AND AN ASSESSMENT TOOLKIT FOR FOSTERING LEADERSHIP CAPACITY THROUGH THE "SMART GREENHOUSE" STEM PROJECT IN PHYSICS 11 EDUCATION

The growing demand for 21st-century skills has highlighted the need to foster leadership capacity in high school students, with STEM project-based learning offering a promising environment for this development. However, a significant gap exists between this educational goal and the practical availability of systematically designed teaching processes and specialized tools for intentionally cultivating and assessing leadership in the classroom. This paper addresses this gap by presenting the outputs of a design-based research study: a complete pedagogical model for fostering leadership through a specific STEM project. The model's teaching process for the "Smart Greenhouse" project is structured around the five stages of the Engineering Design Process (EDP), while the corresponding assessment toolkit is grounded in a validated six-component leadership framework (Nguyen Quang Linh &amp; Cao Tien Khoa, 2024). The primary outputs presented are: (1) a detailed, five-stage teaching plan that integrates Physics 11 content with leadership development opportunities , and (2) a multifaceted assessment toolkit comprising a teacher observation rubric, a peer assessment form, and a deep interview protocol, all tailored to the project's activities. This integrated system provides educators with a scientifically-grounded, practical, and replicable model to move beyond aspiration and intentionally foster and evaluate leadership capacity within a high school STEM setting. The alignment between the learning activities and the assessment tools ensures an authentic and effective approach to competency development

Role of Entrepreneurial Competence, Entrepreneurial Education, Family Support and Entrepreneurship Policy in Forming Entrepreneurial Intention and Entrepreneurial Decision

This study proposes specific solutions to promote entrepreneurial intention and encourages converting entrepreneurial intention into entrepreneurial decisions in the future. In recent years in Vietnam, many studies have been conducted to find solutions to promote, encourage, and motivate young people in general and students, in particular, to participate in entrepreneurship to meet up the goal of 2.0 million enterprises by 2030 as a driving force to promote economic development. For the same purpose, the paper uses AMOS software with the SEM structure model and a sample size of 432 graduated students in business, financial and technical universities in Vietnam to clarify the relationship between the factors of entrepreneurial competence and education, family support, and entrepreneurship policy on the process of forming the entrepreneurial intention and entrepreneurial decision. The study concludes that entrepreneurial competence, entrepreneurial education, and family support have positive effect on entrepreneurial intention and finally entrepreneurial intention has a positive effect on entrepreneurial decision

g-INFO portal: a solution to monitor Influenza A on the Grid for non-grid users

International audienceIn this paper, we introduce a portal for monitoring Influenza A on a grid-based system. Influenza A keeps on being a major threat to public health worldwide; especially if one virus can mutate itself so that it acquires the capacity for human to human transmission of H1N1 as well as the high death rate of H5N1. The existing g-INFO (Grid-based Information Network for Flu Observation) project provides a complete system for monitoring flu virus on the Grid. We present here a portal that operates on top of the g-INFO system as a solution for non-grid users to utilize grid services for analyzing molecular biology data of Influenza A

CURRENT SITUATION OF STUDENTS’ PSYCHOLOGICAL STATE BEFORE PRACTICAL COURSES’ FINAL EXAMS

The article aimed to determine the factors influencing students’ psychological state before the final exam of practical courses. The article used conventional scientific research methods in sports and physical training combined with psychological tests studied on fifty students at Ho Chi Minh City University of Physical Education and Sports (UPES). After reviewing related studies and consulting with experts, four tests were employed to assess the psychological state before the test of the research subjects. The results showed that students with a good psychological state to take the exam had good test results. Conversely, students with a feverish or lethargic state will have poor test results. The research results serve as the basis for proposing measures to adjust the psychological state before the exam, contributing to improving the learning results of students.  Article visualizations