From a traditional academic library to a modern learning environment : Dalarna University Library - expectations and results

This report describes the ideas and vision behind Dalarna University's award-winning library in Falun. A description of the planning and construction processes and an evaluation of the final outcome are presented together with experiences and observations drawn from the project.

Det ideella tränaruppdraget : En studie om ideella tränares ledarskap inom gymnastik.

Volunteer coaches are critical for the existence of youth sports organizations. They are both leading the activity and are expected to develop the athletes in a technical, psychological, social and cultural way. The mission as a coach requires skills and knowledge from a wide range of fields and the mission as a coach appears complex. Stakeholders like Riksidrottsförbundet, Gymnastikförbundet and the sport organization have certain requirements on how to design the activities. Coaches have to follow those guidelines and implement them in practice. The social context is one important factor for understanding the driving force. It affects how coaches perceive their assignment as a volunteer coach. This study aims to contribute to increased understanding of the fenomen volunteer coach mission and increase understanding for the drivers of volunteer coaches in gymnastics. In order to clarify this, 6 interviews with volunteer coaches from gymnastics organizations linked to Riksidrottsförbundet were conducted. This study indicates that the motive behind the coaching mission is grounded in an intrinsic value of being a coach. The coaching mission itself appears partly contradictory when trying to combine the sport related and the social dimensions. Seeing progress from practice and to follow the development of gymnasts are aspects that drives coaches. That combined with the social interaction is important for understanding the drivers of being a coach.

Independent Domain of Symmetric Encryption using Least SignificantBit : Computer Vision, Steganography and Cryptography Techniques

The rapid development of data transfer through internet made it easier to send the data accurate and faster to the destination. There are many transmission media to transfer the data to destination like e-mails; at the same time it is may be easier to modify and misuse the valuable information through hacking. So, in order to transfer the data securely to the destination without any modifications, there are many approaches like cryptography and steganography. This paper deals with the image steganography as well as with the different security issues, general overview of cryptography, steganography and digital watermarking approaches.  The problem of copyright violation of multimedia data has increased due to the enormous growth of computer networks that provides fast and error free transmission of any unauthorized duplicate and possibly manipulated copy of multimedia information. In order to be effective for copyright protection, digital watermark must be robust which are difficult to remove from the object in which they are embedded despite a variety of possible attacks. The message to be send safe and secure, we use watermarking. We use invisible watermarking to embed the message using LSB (Least Significant Bit) steganographic technique. The standard LSB technique embed the message in every pixel, but my contribution for this proposed watermarking, works with the hint for embedding the message only on the image edges alone. If the hacker knows that the system uses LSB technique also, it cannot decrypt correct message. To make my system robust and secure, we added cryptography algorithm as Vigenere square. Whereas the message is transmitted in cipher text and its added advantage to the proposed system. The standard Vigenere square algorithm works with either lower case or upper case. The proposed cryptography algorithm is Vigenere square with extension of numbers also. We can keep the crypto key with combination of characters and numbers. So by using these modifications and updating in this existing algorithm and combination of cryptography and steganography method we develop a secure and strong watermarking method. Performance of this watermarking scheme has been analyzed by evaluating the robustness of the algorithm with PSNR (Peak Signal to Noise Ratio) and MSE (Mean Square Error) against the quality of the image for large amount of data. While coming to see results of the proposed encryption, higher value of 89dB of PSNR with small value of MSE is 0.0017. Then it seems the proposed watermarking system is secure and robust for hiding secure information in any digital system, because this system collect the properties of both steganography and cryptography sciences.