Der Videocampus Sachsen (VCS) ist eines von fünf strategischen Handlungsfeldern der Landesinitiative Bildungsportal Sachsen (vgl. AKeL 2015, S. 2). Es handelt sich um ein ebenen- und fachbereichsübergreifendes Verbundprojekt von acht sächsischen Hochschulen zum Aufbau/Betrieb einer gemeinsamen Videoplattform. Gefördert durch das SMWK entsteht aktuell eine Machbarkeitsstudie, die u.a. aktuelle Nutzungsbedarfe, technische Möglichkeiten, Geschäftsmodelle wie auch didaktische Potentiale in den Blick nimmt. Im Beitrag werden Idee, Notwendigkeit und Nutzenerwartung des VCS ausgeführt. Ein Schwerpunkt liegt auf der Integration medienrechtlicher Überlegungen. Es werden einerseits exemplarisch die Ergebnisse der juristischen Expertise vorgestellt, andererseits anhand konkreter Einsatzszenarien sogenannte rechtliche Fallstricke identifiziert und diskutiert.

Annually, road accidents cause more than 1.2 million deaths, 50 million injuries, and US$ 518 billion of economic cost globally. About 90% of the accidents occur due to human errors such as bad awareness, distraction, drowsiness, low training, fatigue etc. These human errors can be minimized by using advanced driver assistance system (ADAS) which actively monitors the driving environment and alerts a driver to the forthcoming danger, for example adaptive cruise control, blind spot detection, parking assistance, forward collision warning, lane departure warning, driver drowsiness detection, and traffic sign recognition etc. Unfortunately, these systems are provided only with modern luxury cars because they are very expensive due to numerous sensors employed. Therefore, camera-based ADAS are being seen as an alternative because a camera has much lower cost, higher availability, can be used for multiple applications and ability to integrate with other systems. Aiming at developing a camera-based ADAS, we have performed an ethnographic study of drivers in order to find what information about the surroundings could be helpful for drivers to avoid accidents. Our study shows that information on speed, distance, relative position, direction, and size & type of the nearby vehicles & other objects would be useful for drivers, and sufficient for implementing most of the ADAS functions. After considering available technologies such as radar, sonar, lidar, GPS, and video-based analysis, we conclude that video-based analysis is the fittest technology that provides all the essential support required for implementing ADAS functions at very low cost. Finally, we have proposed a Smart-Dashboard system that puts technologies – such as camera, digital image processor, and thin display – into a smart system to offer all advanced driver assistance functions. A basic prototype, demonstrating three functions only, is implemented in order to show that a full-fledged camera-based ADAS can be implemented using MATLAB. / Phone# 00966-56-00-56-471

Der Videocampus Sachsen (VCS) ist eines von fünf strategischen Handlungsfeldern der Landesinitiative Bildungsportal Sachsen (vgl. AKeL 2015, S. 2). Es handelt sich um ein ebenen- und fachbereichsübergreifendes Verbundprojekt von acht sächsischen Hochschulen zum Aufbau/Betrieb einer gemeinsamen Videoplattform. Gefördert durch das SMWK entsteht aktuell eine Machbarkeitsstudie, die u.a. aktuelle Nutzungsbedarfe, technische Möglichkeiten, Geschäftsmodelle wie auch didaktische Potentiale in den Blick nimmt. Im Beitrag werden Idee, Notwendigkeit und Nutzenerwartung des VCS ausgeführt. Ein Schwerpunkt liegt auf der Integration medienrechtlicher Überlegungen. Es werden einerseits exemplarisch die Ergebnisse der juristischen Expertise vorgestellt, andererseits anhand konkreter Einsatzszenarien sogenannte rechtliche Fallstricke identifiziert und diskutiert.

The purpose of this study was to determine the effects of QR code (quick reference) linked video-based instruction (VBI) on daily vocational skills for students with moderate to severe disabilities (MSD). A multiple probe across participants was used to evaluate the effectiveness of VBI accessed through scanning a QR code. During technology training a system of least prompts was used to teach students to unlock the iPod, scan the QR code, press play, and press pause between each step of the task; after reaching mastery, students entered into the intervention condition (VBI). During VBI an immediate change in level was observed across three particpants. This study found a functional relationship between VBI and the completion of vocational tasks.

Writing is essential to human interaction. When handwriting is illegible, communication may be negatively impacted. A severe deficit in handwriting is known as dysgraphia, a problem frequently associated with autism spectrum disorders (ASD). Video self-modeling (VSM) has been proven effective for children with ASD in the strengthening of social skills, verbalizations, and daily living skills. However, there remains a significant gap in the literature regarding the use of VSM for the treatment of dysgraphia in children with ASD. Because VSM has demonstrated success in the acquisition of many types of skills, it may prove similarly effective for remediating dysgraphia in children with ASD. Utilizing a behavioral perspective, this study seeks to determine if VSM is an effective treatment for improving handwriting legibility and proficiency. This study analyzes secondary data collected by a day treatment center (DTC) specializing in the care of children with ASD. Data indicated that after establishing a baseline level of behavior for writing simple words, the DTC staff administered the VSM treatment and rated the legibility of the participants' responses based on the Woodcock-Johnson III Tests of Achievement (WJ-III) Handwriting Legibility Scale. Raw score differences between baseline and treatment phases were recorded and analyzed. A pretest/ posttest evaluation based on scores obtained from the Handwriting Proficiency Screening Questionnaire (HPSQ) and Handwriting Proficiency Screening Questionnaire for Children (HPSQ-C) determined changes in handwriting proficiency. Effectively analyzing this data would be an important contribution to the existing literature, and would enhance social change initiatives through strengthening the communication skills of individuals with ASD.

As a method of building relationships with the public, some police forces have integrated community members into the candidate assessment and selection process. The purpose of this quantitative correlational study was to determine the effect of integrating community evaluators as a new method in the assessment and selection process for police officers in a city police force. Media richness theory and general mental ability were used as a framework, and archival data from a large Midwest department of public safety were collected by filing two public records requests. Data from 2,510 police candidates were included. Quantitative data analysis was conducted using correlational and regression tests to examine rater agreement, subgroup differences (gender or race/ethnicity) in selection outcomes, and the predictive validity of a testing method as measured by academy performance with and without the integration of community evaluators. There was no evidence to suggest that integrating community evaluators into the assessment and selection process for entry-level police officers affected rater agreement or subgroup differences in selection outcomes. The findings from this study support positive social change by indicating that integrating the community into a structured assessment process did not impact selection outcomes as measured by gender, race/ethnicity, or academy performance, which may encourage public safety departments to build community relationships by inviting local residents to participate in the assessment and selection process for police officers. Other social change may include the effect that the integration of community members could have on applicant and community perceptions of the assessment and selection process for police officers.

Un développement rapide et une densification du trafic aérien ont conduit à l'introduction de nouvelles opérations d'approches et d'atterrissage utilisant des trajectoires plus flexibles et des minimas plus exigeants. La plupart des opérations de navigation aérienne sont actuellement réalisées grâce au GNSS, augmenté par les systèmes GBAS, SBAS et ABAS qui permettent d'atteindre des opérations d'approches de précision (pour GBAS et SBAS). Cependant ces systèmes nécessitent la mise en place d'un réseau de station de référence relativement couteux et des diffusions constantes de messages aux utilisateurs de l'espace aérien. Afin de surmonter ces contraintes, le système ABAS intègre à bord des informations fournies par les systèmes de navigation inertielle (INS) ainsi améliorant les performances de navigation. Dans cette logique, les avions commerciaux actuels utilisent une solution de couplage des deux systèmes appelée hybridation GPS/baro-INS. Cette solution permet d'atteindre des niveaux de performance en termes de précision, intégrité, disponibilité et continuité supérieurs aux deux systèmes pris séparément. Malheureusement, les niveaux d'exigences requis par les opérations de précision ou les atterrissages automatiques ne peuvent pas encore être totalement couverts par les solutions d'hybridation actuelles. L'idée principale de cette thèse a été d'étendre le processus d'hybridation en incluant d'autres capteurs ou systèmes actuellement disponibles ou non à bord et d'évaluer les niveaux de performance atteints par cette solution de filtre d'hybridation global. L'objectif ciblé est de pouvoir fournir la plupart des paramètres de navigations pour les opérations les plus critiques avec le niveau de performance requis par les exigences OACI. Les opérations ciblées pendant l'étude étaient les approches de précision (en particulier les approches CAT III) et le roulage sur la piste. L'étude des systèmes vidéo a fait l'objet d'une attention particulière pendant la thèse. La navigation basée sur la vidéo est une solution autonome de navigation de plus en plus utilisée de nos jours axée sur des capteurs qui mesurent le mouvement du véhicule et observent l'environnement. Que cela soit pour compenser la perte ou la dégradation d'un des systèmes de navigation ou pour améliorer la solution existante, les intérêts de l'utilisation de la vidéo sont nombreux. / The quick development of air traffic has led to the improvement of approach and landing operations by using flexible flight paths and by decreasing the minima required to perform these operations. Most of the aircraft operations are supported by the GNSS augmented with GBAS, SBAS and ABAS. SBAS or GBAS allow supporting navigation operations down to precision approaches. However, these augmentations do require an expensive network of reference receivers and real-time broadcast to the airborne user. To overcome, the ABAS system integrates on-board information provided by an INS so as to enhance the performance of the navigation system. In that scheme, INS is coupled with a GPS receiver in a GPS/baro-INS hybridization solution that is already performed on current commercial aircraft. This solution allows reaching better performance in terms of accuracy, integrity, availability and continuity than the two separated solutions. However the most stringent requirements for precision approaches or automatic landings cannot be fulfilled with the current hybridization. The main idea of this PhD study is then to extend the hybridization process by including other sensors already available on commercial aircraft or not and, to assess the performance reached by a global hybridization architecture. It aims at providing most of the navigation parameters in all operations with the required level of performance. The operations targeted by this hybridization are precision approaches, with a particular focus on CAT III precision approach and roll out on the runway. The study of video sensor has been particularly focused on in the thesis. Indeed video based navigation is a complete autonomous navigation opportunity only based on sensors that provide information from the dynamic of the vehicle and from the observation of the scenery. Moreover, from a possible compensation of any loss or degradation of a navigation system to the improvement of the navigation solution during the most critical operations, the interests of video are numerous.

abstract: The problem under investigation was to determine if a specific outline-style learning guide, called a Learning Agenda (LA), can improve a college algebra learning environment and if learner control can reduce the cognitive effort associated with note-taking in this instance. The 192 participants were volunteers from 47 different college algebra and pre-calculus classes at a community college in the southwestern United States. The approximate demographics of this college as of the academic year 2016 – 2017 are as follows: 53% women, 47% men; 61% ages 24 and under, 39% 25 and over; 43% Hispanic/Latino, 40% White, 7% other. Participants listened to an approximately 9-minute video lecture on solving a logarithmic equation. There were four dependent variables: encoding as measured by a posttest – pretest difference, perceived cognitive effort, attitude, and notes-quality/quantity. The perceived cognitive effort was measured by a self-reported questionnaire. The attitude was measured by an attitude survey. The note-quality/quantity measure included three sub-measures: expected mathematical expressions, expected phrases, and a total word count. There were two independent factors: note-taking method and learner control. The note-taking method had three levels: the Learning Agenda (LA), unguided note-taking (Usual), and no notes taken. The learner control factor had two levels: pausing allowed and pausing not allowed. The LA resulted in significantly improved notes on all three sub-measures (adjusted R2 = .298). There was a significant main effect of learner control on perceived cognitive effort with higher perceived cognitive effort occurring when pausing was not allowed and notes were taken. There was a significant interaction effect of the two factors on the attitude survey measure. The trend toward an improved attitude in both of the note-taking levels of the note-taking factor when pause was allowed was reversed in the no notes level when pausing was allowed. While significant encoding did occur as measured by the posttest – pretest difference (Cohen’s d = 1.81), this measure did not reliably vary across the levels of either the note-taking method factor or the learner control factor in this study. Interpretations were in terms of cognitive load management, split-attention, instructional design, and note-taking as a sense-making opportunity. / Dissertation/Thesis / Doctoral Dissertation Educational Technology 2018

Submitted by Almir Azevedo (barbio1313@gmail.com) on 2015-08-24T17:42:07Z No. of bitstreams: 1 CARLOS ALEXANDRE F. JORGE D.pdf: 11356748 bytes, checksum: 59927b7a303fb41d249f403942824b9a (MD5) / Made available in DSpace on 2015-08-24T17:42:07Z (GMT). No. of bitstreams: 1 CARLOS ALEXANDRE F. JORGE D.pdf: 11356748 bytes, checksum: 59927b7a303fb41d249f403942824b9a (MD5) Previous issue date: 2015-07 / This work proposes the development of a system to evaluate received radiation dose for nuclear plants personnel. The system is conceived to operate in a complementary form to the existing approaches for radiological protection, thus o ering redundancy, what is desirable for critical plants operation. The proposed system must operate in an independent form on the actions to be performed by the operators under evaluation. Therefore, it was decided it would be based on methods used for video surveillance. The nuclear plant used as example is Argonauta Nuclear Research Reactor, belonging to Instituto de Engenharia Nuclear, Comiss~ao Nacional de Energia Nuclear (Nuclear Engineering Institute, National Nuclear Energy Commission). During this thesis research, both radiation dose rate distribution and video databases were obtained. Methods available in the literature, for targets detection and/or tracking, were evaluated for this database. From these results, a new system was proposed, with the purpose of meeting the requisites for this particular application. Given the tracked positions of each worker, the radiation dose received by each one during tasks execution is estimated, and may serve as part of a decision support system.

Aims The purpose of this study is to explore the possibilities for video-based learning of computer systems in the field of medical education in rural sub-Saharan Africa. Background Low-income countries are forced to perform healthcare services with resources already spread too thin. The use of electronic medical records can increase the cost-effectiveness of delivering healthcare services, but the low computer literacy in sub-Saharan Africa is an obstacle necessary to overcome. E-learning and video-based learning has the potential to partially solve this problem. Methods User observations were conducted on five healthcare workers in rural Uganda. The users watched an instruction video, after which they performed an assessment test of an electronic medical record system. Results Some effectiveness was perceived – but it was slight, and varied greatly between the test subjects. Computer experience is an important prerequisite for the success of e-learning initiatives. Effectiveness was higher for more simple tasks. Conclusion This paper does not propose video-based learning as the only source of training for the target group. However, there is a possibility to envision video-based learning as a building block in a blended-learning strategy – utilising video-based learning for easier tasks and knowledge retention for users who are already familiar with the system.