This thesis deals with speed measuring and speed measurement sensors. It’s designed equipment for the demonstration of the sensors principle. In the next part it’s designed the assignment for BMFV lesson and it’s made the measuring on this equipment.

This thesis deals with speed measuring and speed measurement sensors. It’s designed equipment for the demonstration of the sensors principle. In the next part it’s designed the assignment for BMFV lesson, it’s made the measuring on this equipment and the exemplary protocol is elaborate.

Aim: With particular regard to the traditional media and political participation in Sweden, Iintend to map how and in what way Greta Thunberg protests and the political engagement she expresses. Questions: • How is Greta Thunberg’s protesting framed and how can it be understood based on theprotest paradigm? • How can you understand Greta Thunberg´s political participation on the basis of ideasabout Civic Engagement? Method and material: This report is a qualitative study based on a textual analysis. For collectingthe empirical material, I have chosen to use texts from Swedish news articles. I used 27articles from 2 newspapers which is Aftonbladet and Expressen. Main results: The study shows that media puts greater focus on Greta Thunberg as a personinstead of the factual content and political agenda she stands for. This contributes to GretaThunberg being marginalized and delegitimized, since she is considered a symbol thatchallenges the political power structure. Greta Thunberg feels responsible for the climateissue and it is her duty to be able to contribute to a democratic society by getting involved.Greta Thunberg considers her participation in the media that she feels a moral obligation toengage with the climate.

"In 2001 after the 2000 election in Zanzibar, the Civic United Front (CUF) began planning a series of peaceful demonstrations to protest alleged fraud in the October 2000 presidential elections, calling for a rerun of the elections and constitutional reforms. The CUF notified the police of their intended routes, both the government officials and police immediately responded and announced that the demonstrations were banned. Police were ordered to use all force necessary to break up the demonstrations. The Tanzanian prime minister was recorded as stating that force would be used to break up the demonstration. According to him, "government has prepared itself in every way to confront whatever occurs ... any provocation will be met with all due forces of the state". CUF demonstrations, which were widely supported, took place on 27 January 2001 and as the unarmed demonstrators walked peacefully toward the four designated meeting grounds, security forces intercepted and opened fire without warning. They attacked the civilians, [and]ordered them to disperse [under] firing and beating. ... All these events occurred in the face of the fact that the Constitution of the United Republic of Tanzania (CURT) provides for freedom of assembly. The requirement of permits has been removed and section 40 of the Police Force Ordinance and 11(1) of the Political Parties Act were declared void on grounds that the requirement for a permit to hold an assembly infringed the freedom of peaceful assembly and procession enshrined in article 20(2) of the CURT. However the government limits these rights in practice, police have authority to deny permission to hold an assembly on public safety and security grounds. The relevant provision is section 41 of the Police Force Ordinance which permits any police officer to stop the holding of any assembly. The situation has not improved for opposition parties seeking to hold assemblies because of the way the police apply section 41. Rather than invoking this provision only in extraordinary situations as required, the police, once served with a notice of a planned meeting, issued prohibition orders claiming that they had information that the meeting was likely to cause chaos, but without giving evidence. ... These restrictions on the right to freedom of assembly and the excessive use of force by police officials as depicted in the above recounted incident and others of its kind, violate numerous provisions of international legal istruments to which Tanzania is a party. The Universal Declaration of Human Rights (UDHR) guarantees for the right to freedom of peaceful assembly and association, as does the International Covenant on Civil and Political Rights (ICCPR). The African Charter limits the right to assemble subject to necessary restrictions provided by law, in particular those enacted in the interest of national security and the safety, health, ethics and the rights to freedoms of other. But the African Commission has interpreted these claw back clauses to mean that the limitations must be in accordance with international law and thus the standards developed under the ICCPR, especially, would be relevant in determining when the rights to assemble may be limited. The exercise here is to examine the nature of the Tanzanian laws on the right to peaceful assembly and demonstration in the light of police practice having regards to the nature of the right as guaranteed under international human rights instruments." -- Introduction. / Thesis (LLM (Human Rights and Democratisation in Africa)) -- University of Pretoria, 2004. / Prepared under the supervision of Prof. K. Quashigah at the Faculty of Law, University of Ghana / http://www.chr.up.ac.za/academic_pro/llm1/dissertations.html / Centre for Human Rights / LLM

The study examines the influence of social media during the demonstrations in Hong Kong 2019-2020, focusing on how young political activists make use of social media, what their attitudes are towards the forums and whether the increased use shows some positive and/or negative effects. The study uses a qualitative method where the empirical material is obtained through semi-structured interviews. An interview guide was created and then nine interviews were conducted, eight of which were used in the study. The results are analyzed on the basis of an analytical framework developed from previous research and theories on how media is used. The study uses Jay G. Blumler, Michael Gurevitch and Elihu Katz’s theory Uses and Gratification, as well as Jan Van Dijk’s theory of network and information societies. The results show that the political activists mainly use social media for the sake of information, as a means of communicating mobilization strategies, updating each other on events, and for encouragement and motivation around the importance of the movement. They all have great respect for what they share on social media, but the attitude is partly that they must spread political messages in order to reach a global audience. The study also shows that the increased use of social media brings both negative and positive effects.

Title: Physics demonstrations for upper secondary school students - video study Author: Bc. Alexandr Nikitin Department: Department of Physics Education Supervisor: RNDr. Marie Snětinová, Ph.D., Department of Physics Education Abstract: Experiment is a key element not only for physics as science, but also for physics education. Even though attention has been lately focused more on students' hands-on experiments, demonstration experiments still play an important role in today's education. Department of Physics Education (Charles University, Faculty of Mathematics and Physics) has been performing physics demonstrations for upper secondary school students for more than 30 years. Seven different topics are currently offered by the Department. A survey conducted on a population of est. 5,100 students showed that the perception of these topics by students varies quite significantly, especially considering their intrinsic motivation and subjectively perceived value and usefulness of a given topic. The questions at hand are whether parameters that influence students' perception in negative or positive way do exist and how they are related to the choice of the experiments themselves or the lecturer's work with the audience. Aim of this thesis is to present a video study conducted on video recordings of all seven...

Pendant très longtemps, l'automatisation a été assujettie à l'usage de robots industriels traditionnels placés dans des cages et programmés pour répéter des tâches plus ou moins complexes au maximum de leur vitesse et de leur précision. Cette automatisation, dite rigide, possède deux inconvénients majeurs : elle est chronophage dû aux contraintes contextuelles applicatives et proscrit la présence humaine. Il existe désormais une nouvelle génération de robots avec des systèmes moins encombrants, peu coûteux et plus flexibles. De par leur structure et leurs modes de fonctionnement ils sont intrinsèquement sûrs ce qui leurs permettent de travailler main dans la main avec les humains. Dans ces nouveaux espaces de travail collaboratifs, l'homme peut être inclus dans la boucle comme un agent décisionnel actif. En tant qu'instructeur ou collaborateur il peut influencer le processus décisionnel du robot : on parle de robots collaboratifs (ou cobots). Dans ce nouveau contexte, nous faisons usage de guides virtuels. Ils permettent aux cobots de soulager les efforts physiques et la charge cognitive des opérateurs. Cependant, la définition d'un guide virtuel nécessite souvent une expertise et une modélisation précise de la tâche. Cela restreint leur utilité aux scénarios à contraintes fixes. Pour palier ce problème et améliorer la flexibilité de la programmation du guide virtuel, cette thèse présente une nouvelle approche par démonstration : nous faisons usage de l'apprentissage kinesthésique de façon itérative et construisons le guide virtuel avec une spline 6D. Grâce à cette approche, l'opérateur peut modifier itérativement les guides tout en gardant leur assistance. Cela permet de rendre le processus plus intuitif et naturel ainsi que de réduire la pénibilité. La modification locale d'un guide virtuel en trajectoire est possible par interaction physique avec le robot. L'utilisateur peut déplacer un point clé cartésien ou modifier une portion entière du guide avec une nouvelle démonstration partielle. Nous avons également étendu notre approche aux guides virtuels 6D, où les splines en déplacement sont définies via une interpolation Akima (pour la translation) et une 'interpolation quadratique des quaternions (pour l'orientation). L'opérateur peut initialement définir un guide virtuel en trajectoire, puis utiliser l'assistance en translation pour ne se concentrer que sur la démonstration de l'orientation. Nous avons appliqué notre approche dans deux scénarios industriels utilisant un cobot. Nous avons ainsi démontré l'intérêt de notre méthode qui améliore le confort de l'opérateur lors de la comanipulation. / For a very long time, automation was driven by the use of traditional industrial robots placed in cages, programmed to repeat more or less complex tasks at their highest speed and with maximum accuracy. This robot-oriented solution is heavily dependent on hard automation which requires pre-specified fixtures and time consuming programming, hindering robots from becoming flexible and versatile tools. These robots have evolved towards a new generation of small, inexpensive, inherently safe and flexible systems that work hand in hand with humans. In these new collaborative workspaces the human can be included in the loop as an active agent. As a teacher and as a co-worker he can influence the decision-making process of the robot. In this context, virtual guides are an important tool used to assist the human worker by reducing physical effort and cognitive overload during tasks accomplishment. However, the construction of virtual guides often requires expert knowledge and modeling of the task. These limitations restrict the usefulness of virtual guides to scenarios with unchanging constraints. To overcome these challenges and enhance the flexibility of virtual guides programming, this thesis presents a novel approach that allows the worker to create virtual guides by demonstration through an iterative method based on kinesthetic teaching and displacement splines. Thanks to this approach, the worker is able to iteratively modify the guides while being assisted by them, making the process more intuitive and natural while reducing its painfulness. Our approach allows local refinement of virtual guiding trajectories through physical interaction with the robots. We can modify a specific cartesian keypoint of the guide or re- demonstrate a portion. We also extended our approach to 6D virtual guides, where displacement splines are defined via Akima interpolation (for translation) and quadratic interpolation of quaternions (for orientation). The worker can initially define a virtual guiding trajectory and then use the assistance in translation to only concentrate on defining the orientation along the path. We demonstrated that these innovations provide a novel and intuitive solution to increase the human's comfort during human-robot comanipulation in two industrial scenarios with a collaborative robot (cobot).

Denna studie undersöker hur svensk och brittisk tidningspress rapporterade om ländernas inrikes Black Lives Matter-demonstrationer under sommaren 2020. Syftet är att jämföra ett urval av artiklar från respektive land samt undersöka i vilken utsträckning protestparadigmets karaktärsdrag återfinns i artiklarna. Metodologiskt kombineras kvantitativ innehållsanalys och kvalitativ textanalys. Den kvantitativa delen ger en överblick över rapporteringen i artiklarna, medan den kvalitativa delen bidrar med en mer djupgående analys. Det teoretiska ramverket grundar sig i gestaltningsteorin. Mer specifikt tar uppsatsen avstamp i teorin om protestparadigmet, som föreslår att medier tenderar att vinkla rapporteringen mot våld, konflikt och polisingripanden under demonstrationerna snarare än orsak, syfte och mål med en demonstration. Även teorin om aktivistdilemmat används, en teori som menar att demonstranter ofta tar till våldsamma handlingar för medial uppmärksamhet, vilket i sin tur kan bidra med en risk till att rörelsen framställs ofördelaktigt i medierna. Resultatet av studien visar att paradigmets karaktärsdrag tydligt syns i de svenska artiklarna eftersom de till stor del fokuserar på våldsamheter i samband med demonstrationerna, samtidigt som demonstranternas budskap ofta undermineras. Medan paradigmets karaktärsdrag generellt sett nyanseras eller inte förekommer i de brittiska artiklarna eftersom stort utrymme ges till demonstranterna att uttrycka sitt budskap och mål samtidigt som en tydlig distinktion mellan provokatörer och fredliga demonstranter oftast görs.

Cyber security is a rapidly changing area that contributes to people increasingly being exposed to Internet of Things (IoT). The risks of using IoT do not get enough attention from the users, nor does the supplier of the devices take full responsibility for security. There is a lack of comprehensive standards for secure products and without proper security measures, organizations using IoT are at risk of greater damage. There is a need of educating a diverse range of individuals within the area of cyber security, to reduce the risks of being a future victim. This thesis aims to increase the awareness and knowledge regarding current cyber security threats, by developing educational demonstrations. Two Wi-Fi cameras were penetration tested from an isolated network, where successful experiments showed that it was possible to remotely access the video stream of one camera, and extract the entire content of the SD card, without any requirements of user credentials. It was also shown that motion detection and privacy mode were possible to remotely enable and disable. Successful experiments also showed that a DoS attack could be carried out, by remotely rebooting one of the cameras. Additionally, a qualitative study was conducted, resulting in valuable criteria that a cyber security demonstration should fulfill. The vulnerabilities in both cameras were utilized developing five Proof of Concept demonstrations, presenting attack scenarios of i.a. an attacker breaking in without detection, espionage and blackmail. These demonstrations could be used in education to increase awareness of cyber security.

The problem of this study was an analysis of results obtained by a computer-assisted instructional approach and a lecture-demonstration instructional approach of teaching mathematical concepts in the area of office machines at the community college level. The purposes of this study were as follows: (1) to determine which method, the lecture-demonstration or computer assisted instruction, will produce the better mathematical skill in office machines; (2) to determine the effectiveness of computer-assisted instruction as compared to the lecture demonstration approach on the student’s attitude toward office machines, as measured by the Purdue attitude scale; (3) to compare the correlation between attitude and achievement for the computer-assisted instruction group and the lecture-demonstration group; and (4) to compare the correlation between attitude and achievement for high-ability students and low-ability students, based on scores obtained from the Otis-Lennon Mental Ability Test. The findings in this study indicate that there were no significant differences in mathematical achievement, attitude scores, or the correlation between attitude and achievement between students in the computer-assisted group and students in the lecture-demonstration group. The following conclusions were formulated from an analysis of this study. 1. Based on the mathematical achievement scores and the statistical analysis presented in this study, it is concluded that there are no demonstrated differences between the computer-assisted instructional approach and the lecture demonstration approach for teaching applied mathematical concepts to business machines students. 2. Based on the attitude scores presented in this study, students in both groups appear to have a favorable attitude toward the business machines course. Attitude scores for students in the computer-assisted group were not significantly different from scores for students in the lecture-demonstration group. 3. The integration of business machines and applied mathematics, in addition to developing speed and accuracy on electronic calculators and adding machines, produces increased achievement in mathematics.