Voice over IP (VoIP) is a relatively new technology that enables voice calls over data networks.With VoIP it is possible to lower expenses, and increase functionality and flexibility. FromSwedish Armed Forces point of view, the security issue is of great importance, why the focus inthis report is on the security aspect of the two most common open-source VoIP-protocols H.323and SIP, some of the most common attacks, and counter-measures for those attacks.Because of the level of complexity with a network running H.323 or SIP, and the fact that it hasyet to stand the same level of trial as of traditional telephony, a VoIP-system includes manyknown security-issues, and probably at present many unknown security flaws.The conclusion is that it takes great knowledge and insight about a VoIP-network based onH.323 or SIP to make the network satisfyingly safe as it is today, and is therefore perhaps not asuitable solution for the Swedish Armed Forces today for their more sensitive communications..

AbstractTitle: Serial recall of two-voice lists: Words are not perceptually organized by voice.The present study examined how voice affects the perceptual grouping of words in short-term memory that are auditory presented. Three different voice-lists were used: single-voice, alternating-voice and split-voice. In single-voice lists all words were presented in the same voice. In alternating-voice lists words were presented alternately in a male and a female voice. Finally, in split-voice lists words were presented grouped four and four in a male and a female voice.

Our time is characterized by the development of new technologies that facilitate communication between people. The need for Video Mediated Communication (VMC) is increasing because people move to other locations due to migration and global mobility. VMC provides the opportunity for millions of people around the world to ?hang out? and see each other despite the distance in between. The world is "shrinking" because of the Internet and our perception of distance is changing.VMC is becoming increasingly available, in the form of applications like Skype and MSN for mobile phones and computers, and in addition, it?s practically free.The purpose of this thesis is to render a picture of the way in which people use Skype in the private sphere.

In many earlier investigations a recall advantage of auditory lists spoken in a single voice has been found over recall of lists spoken in two alternating voices. One explanation proposed is an organization strategy which makes recall of alternating-voice lists so difficult. The strategy implies sorting same-voice words into same-voice groups at encoding. Based on this proposition, it was assumed that voice-by-voice recall would be better than recall in order of presentation, as then the recall instruction and the organization of items in memory would be in concordance. The present experiment tested and was unable to support this hypothesis.

In many earlier investigations a recall advantage of auditory lists spoken in a single voice has been found over recall of lists spoken in two alternating voices. One explanation proposed is an organization strategy which makes recall of alternating-voice lists so difficult. The strategy implies sorting same-voice words into same-voice groups at encoding. Based on this proposition, it was assumed that voice-by-voice recall would be better than recall in order of presentation, as then the recall instruction and the organization of items in memory would be in concordance. The present experiment tested and was unable to support this hypothesis.

Title: Music video: Twelvestep ? DownInside Made by: Benjamin Bondesson Christian Edgren Tutor: Silvio Ocasic Course admin: Peter Ekdahl Purpose: To create a music video that we can stand, that challenges us in the creative process. And to help a struggling band with another medium to spread their music. Goal:We intend to create a great product that is demanding and educational to us. Especially when it comes to cooperation and editing/post production.

Title: Music video: Twelvestep ? DownInside Made by: Benjamin Bondesson Christian Edgren Tutor: Silvio Ocasic Course admin: Peter Ekdahl Purpose: To create a music video that we can stand, that challenges us in the creative process. And to help a struggling band with another medium to spread their music. Goal:We intend to create a great product that is demanding and educational to us. Especially when it comes to cooperation and editing/post production. Keywords:Music video, digital video, film.

Undersökningen vill visa om vald sökmotoroptimering påverkar en webbsidas SERP- placering1 för sidor med video. I arbetet undersöks bland annat video-sitemap och schema.orgs uppmärkning för video.En empirisk undersökning har utförts med tre testdomäner där olika sökmotoroptimeringstekniker implementerats på de olika webbsidorna. En webbsida sökmotoroptimerad för video, en sida med sökmotoroptimering för textinnehåll och en sida sökmotoroptimerad med båda teknikerna. På sidorna har kontinuerligt videor laddats upp och sidornas SERP-placering i sökmotorn Google noterats på en förbestämd sökterm.Resultatet visar att schema.orgs uppmärkning för video och video-sitemap har en viss positiv effekt vad gäller sökmotoroptimering..

The goal with this project was to achieve real-time synchronized video playback over the Internet, or in other words, that multiple clients play the same part of a video at the same time.The result shows how it is possible to build such a protocol, that gives a user experience that the video is synchronized between computers when playing a locally stored file, stream or video delivered using progressive download. This was achieved by designing, then role playing to find weaknesses, and at last implementing the protocols to see how they work in practice. By using such a protocol, it is possible to navigate and discuss around a video in for example a telephone conference, and be sure that everybody is looking on the same picture..

Undersökningens syfte är att studera video som inslag på matematiklektioner genom att titta på elevers kunskapsutveckling, åsikter och lärares åsikter.En video om Pythagoras sats har producerats och visats i klassrummet och det har sedan gjorts diagnostiska prov i experiment- och en kontrollgrupper. Det har även gjorts en elevenkät och lärarintervju. Resultatet visade att eleverna var ganska positiva till video men att filmen inte hjälpte något märkbart. Lärarna ansåg det vara svårt att få in video i matematiken eftersom det går så fort. Slutsatsen är att video kan användas som tillsats till undervisningen ibland, men inte som ensam ersättning till annan undervisning..

This document?s content is the final report of the master´s dissertation Magnus Hällström did during springtime of year 2013. The dissertation?s subject is 802.11s wireless mesh networks with streaming video as a focus point.  During the dissertation a wireless mesh network was set up with different attached cameras for streaming video. A sun panel solution was also tested with the goal of creating a package with a self-configuring network node streaming video, powered by nothing but solar energy. .

ABSTRACTTitle: Violence and women representation in video games (Vålds? och kvinnoskildringar i TV?spel)Number of pages: 42Author: Karolin BodlingTutor: Göran SvenssonCourse: Media and Communication Studies DPeriod: Autumn 2005University: Division of Media and Communication, Department of Information Science, Uppsala University.Purpose/Aim: The aim is to investigate how violence and women are presented in video games and in game reviews.Material/Method: The study includes theories that consider violence and gender in media and video games. The material of the essay exists of two games and five reviews. The method that is being used is a content analysis. The games that are being analysed are Jade Empire and Grand Theft Auto ? San Andreas.Main results: The video games are often connected to brutal violence but the analysis of the game Jade Empire shows that it is possible to hve control of the violence in the games and that the player has a possibility to choose the outcome of violence.

The population over 65 years of age is increasing and health in elderly has been a subject of research for decades but voice function and vocal health has not been prioritized. The purpose of this study is to obtain reference value for the Swedish version of Voice Handicap Index (RHI) and the Throat Scale among people over 65 years of age and assess voice function and vocal health for this age group. The questions were as followed:1) What is the reference value of RHI for people over 65 years of age? 2) What is the reference value of the Throat Scale for people over 65 years of age? 3) Is there a correlation between a self-rated VA-scale on the perceived degree of voice problems, and the self-rated RHI-/Throat Scale result? 4) Does age, gender or previous profession matter for the self-perceived voice?In total 100 individuals participated in the study, 50 women and 50 men, between 65 and 92 years old. The reference value of RHI for people over 65 years of age was 13,4 points and the reference value for the Throat Scale was 7,7 points.

Användningen av strömmande media ökar explosionsartat och är nära knu- tet till utbyggnaden av bredband. Intresset för direktuppspelande video bland kommuner, stat och landsting har ökat på senare år. I dag sänder bl.a. Region Skåne, Uddevalla-, Sigtuna- och Bollnäs kommun direktupp- spelande video från sina kommunfullmäktige.Den här rapporten handlar om Umeå kommuns förutsättningar att sända direktuppspelande video från sin webbplats. Min uppgift blev att undersöka vilka krav kan ställas på en myndighet som sänder video både när det gäller teknik och tillgänglighet.En fördjupning om multicasting görs, då det är en teknik för att drastiskt minska behovet av bandbredd för direktsänd video.

This essay focuses on four different aspects of readability: voice, causality, advanced words and the LIX-value of words. Each of these four facilitates or aggravates reading comprehension for students, which is further defined in the paper. The study is an analysis of textbooks in history for 8th grade from a second language perspective. In terms of voice, causality, advanced words and the LIX-value of words, the study shows that books with higher grades of causality and voice and lower grades of advanced words as well as a low degree of LIX-value are better for students to work with..