Bakgrund: Syftet med denna studie var att undersöka effekten av sju dagars tillskott av betain (2,5 gram/dag) på prestationsförmågan i idrottsspecifika tester för manliga vältränade cykelatleter.Metod: Sex (n=6) manliga testpersoner (genomsnitt ± standardavvikelse ålder, 31,7 ± 10,2 år; längd, 188,2 ± 3,6 cm; kroppsvikt; 82,5 ± 7,6 kg; fettfri massa, 71,6 ± 7,3 kg) genomförde förtester bestående av fem counter movement jumps, fyra stycken 12 s wingate-sprinter med 2,5 minuters aktiv vila följt av fem ytterligare counter movement jumps. De blev sedan indelade slumpmässigt i betain- eller placebogrupper. Första testet etablerade basvärden och eftertest ?1? samt ?2? föregicks med antingen sju dagars tillskott med placebo (2,5 g maltodextrin plus 12,5 mg riboflavin) eller betain (2,5 g trimetylglycin plus 12,5 mg riboflavin). Riboflavin användes för att undanröja den fiskliknande doften som kan uppstå vid tillskott av betain.

Background: Practical blood flow restriction (pBFR) combined with resistance training has been proven to facilitate muscle strength despite training at low intensity. However, research investigating the effects of long-term pBFR-training and its periodization with strength training (ST) at a higher intensity is lacking, as well as the effects of occlusion training on blood lactate levels (BLL) over time.Purpose: To compare the effects of 2 weeks of pBFR training followed by 2 weeks of ST (BFR-ST) with 2 weeks of ST followed by 2 weeks of pBFR training (ST-BFR) on anaerobic performace and BLL.Method: 5 adults (age 23 ± 2 years) with a minimum of 1 year of ST experience were recruited and randomized into BFR-ST (n=2) or ST-BFR (n=3). Anaerobic performance was measured using a 30-s Wingate-test and BLL samples were collected <1 and 5 minutes post-Wingate. Data and samples were collected before the intervention and after the 2 protocols.Results: No differences were seen between groups in anaerobic output or BLL after 4 weeks of training (p>0,1 for all values). A decrease in time to peak power (tPP) were seen in both groups with an advantage for BFR-ST (-37 ± 8 %) over ST-BFR (-27 ± 22 %).

How to motivate yourself to learn has always been an area of interest, gamification has become a way of capturing and enhancing ones motivation. But how should the learning applications be designded to maximize the users motivation? This paper adresses wether Yu-Kai Chous framework Octalysis, is applicable on learning applications. The study is conducted by using a modified set of heuristics that are applied to the evaluated applications to gather data that is then used to evaluate the framework. The paper concludes that the framework can be used to evaluate learning applications but it should be modified to improve the results.

Purpose: The purposes of the current study were to investigate whether there were any differences in the perceptual ability between professional and non-professional ice-hockey players and whether professional players are better at distinguishing, paying attention to and concentrating on what is important during intense physical activity. Method: Twenty male ice-hockey players (10 from both the Swedish first and third divisions) participated in the study. Wingate test were used for physiological measurements while three psychological tests were presented in front of the participants. Stroop, Flanker and Fast counting tests were used to measure perceptual and coping abilities during intense physical activity and the differences between the two groups. Results: Fast counting and Flanker word 2 tests showed a significant difference between the two groups, whereby the professional groups was faster and more accurate than the non-professional group in answering.

Syfte: Syftet var att mäta och utvärdera effekten på prestationen efter intag av träningsdryck (dryck som ska kunna öka din prestation) under anaerob wingate cykeltest.Metod: Sju medeltränade män agerade testpersoner och utförde två stycken wingate cykeltest med olika drycker på Gymnastik- och Idrottshögskolan. Vid det ena tillfället var det träningsdrycken NOCCO BCAA och vid det andra en placebodryck som innehöll Sprite/Coca Cola Zero. Testpersoner fick innan testerna direktiv angående dryck och kost innan utförande. Målet var att undersöka om det fanns några skillnader i den upplevda ansträngningen efter intag av träningsdrycken jämfört med placebodrycken, men också för att se om det fanns ett samband mellan den upplevda ansträngningen och den registrerade pulsen. Den upplevda ansträngningen mättes med hjälp utav Borgskalan.

Yahtzee is a game based on luck. Yet there are algorithms designed to give an optimal result and succeeds in doing so. This report compares the end result of an optimal algorithm to an algorithm that has been modified for the multiplayer scenario. The modified algorithm tries to win over the optimal algorithm through taking greater risks in its decisions when falling behind in points. The results show that it is not favorable to do so.

Is there such a thing as unadulterated nature? All that surrounds us is culturally modified by man somewhere along our past. But culture is only a fictitious conception itself, created in an attempt to break the world into controllable objects.So in what do we find culture? In everything? In the objects or the stories they embrace? Who chooses what?s worth saving and how to save? Choosing what is culture is made from personal, ingrained dichotomies of what?s important and what is not. A selective eye creates a distorted truth, which could have unintentional long-term effects.This thesis will give a historical account of the archaeological discipline?s development in tending to our cultural heritage.

Syfte och frågeställningar: Syftet med studien var att undersöka hos vältränade om det fanns något samband mellan maximal styrka, effektutveckling och snabbhet, dvs tester som till stor del speglar anaerob kapacitet. Syftet var också att undersöka om det här fanns någon skillnad och/eller likhet mellan kvinnor och män.(1) Hur ser det eventuella sambandet ut mellan effektutveckling och maximal styrka? (2) Hur ser det eventuella sambandet ut mellan effektutveckling och snabbhet? (3) Hur ser det eventuella sambandet ut mellan maximal styrka och snabbhet? (4) Hur ser det eventuella sambandet ut, på ovanstående frågeställningar, hos kvinnor och män?Metod: Metoden var kvantitativ och laborativ, utformad för att undersöka det eventuella sambandet mellan snabbhet, maximal styrka och effektutveckling ? Detta testades genom tre olika fysiologiska tester. Testerna genomfördes på en grupp bestående av 10 män (ålder 24,4±2,8 år, kroppsvikt 78,9±9,7 kg och längd 175,6±7,5 cm) och 10 kvinnor (ålder 24,1±1,7 år, kroppsvikt 65±8,0 kg och längd 167±5,7 cm) som var vältränade men hade olika idrottsbakgrund. Målet var att, utifrån den undersökta gruppen, kunna göra uttalanden om en större population.

Syndecan-1 is a cell surface proteoglycan which participates in cell adhesion, differentiation, motility, morphogenesis and intracellular signaling. The two glycosaminoglycans heparan sulfate and chondroitin sulfate are covalently attached to the ectodomain of syndecan-1 via a tetra saccharide linkage sequence. However, the ectodomain can be modified having only one or neither of the glycosaminglycans attached. The glycosaminoglycans are capable of binding ligands such as fibroblast growth factors (FGFs) and support activation of receptors. The ectodomain is proteolytically cleaved from the cell surface by metalloproteinases in a process known as shedding.

Randomness is a complex area of computer science, where only pseudo random numbers are possible to generate algorithmically.This report presents established algorithms for random number generation by conducting a basic study of relevant literature, while testing distribution and speed of the algorithms contained within the C++11 Random library. The results are compared to the algorithm XORShift and a modified version of it. The study shows that the modified algorithm passes all tests in Small Crush, andthat the run time is shorter than for those in the Random library. The conclusion is that it is possible to, with simple means, modify an algorithm to outperform the algorithms of the C++11 Random library..

The purpose of this study was to examine earnings quality and earnings management in U.S. ex-post failed firms. A quantitative study was made, using the Modified Jones Model, to identify abnormal accruals up to six years before bankruptcy. 9 003 continuing firms and 187 bankrupt firms, active sometime between 1990 and 2010, were examined. The study concludes that U.S.

For better understanding of how users interact with the video on demand service Netflix a study was conducted in 10 Swedish households. This study is based on the well-established heuristic evaluation method of Jacob Nielsen, which we modified slightly by letting the users to act as ?evaluation experts? and informing them about the heuristic rules of thumb during the evaluation process. The purpose of this study was to identify usability problems when people interact with Netflix? interface.

The purpose of this thesis was to investigate whether accounting quality is a priced factor by investors. The event studied is the release of year-end result and the release of the annual report. To assess accounting quality a sample of 30 companies listed on the Stockholm Stock Exchange during 2003 to 2007 are studied. We assess accounting quality by the absolute size of discretionary accruals using the modified Jones model developed by Dechow et al. (1995).

The purpose of this paper is to understand the climate of the street and how it can be modified to better meet the needs of the street and the user groups. At the same time the conditions of the street and its surroundings also has to be taken into account. To accomplish this it is necessary to have a broad knowledge of the climate conditions in the city. Therefore an overview of the climate elements and how these are modified in the built-up areas are given. The part of the paper which deals with the city climate has a global approach to be able to give an as complete picture as possible.

Syftet med denna studie var att undersöka om vistelse på hög höjd påverkar den anaeroba arbetsförmågan. Sex aktiva universitetsstudenter, fyra män och två kvinnor, deltog frivilligt i studien. Expeditionen till Nepal varade i 40 dagar och under den perioden sov och vandrade försökspersonerna mellan 1400 och 5100 meter över havet. Före och efter expeditionen genomförde försökspersonerna ett anaerobt wingatetest där peak power, average power, minimum power and power drop uppmättes. Resultatet visade en signifikant sänkning av average power efter den genomförda expeditionen på hög höjd, med ett medelvärde på 8.44 ± 0,84 w/kg före expeditionen och 7.81 ± 0,87 w/kg efter expeditionen.