Equestrian sports and the interest in horses have existed for hundreds of years. It is only in the last thirty years the technological development have enabled closer studies of equine locomotion. The production of both soft- and Hardware that manages to capture and analyze the fast movement of the horse has resulted in a large increase in locomotion research. Even though the interest in horses and the different disciplines they compete in is great, there is a small understanding in how the rider influences the movement of the horse in different types of training. There are several studies available where horses moving freely without the influence of a rider have been studied. What happens with locomotion and ground reaction forces when a rider and equipment are added is not well studied. The objective of this study was to investigate if there are any differences in the ground reaction forces between sitting and rising trot. The study contained seven horses. Six Grand Prix dressage horses and one dressage horse competing at intermediate level.

The business potential of software defined radio (SDR) technology is studied by evaluating whether or not its characteristics correspond to those particular to a disruptive technology. The maturity of the SDR technology concept is illuminated by analyzing the opinions and perspectives of a selection of representatives for different stakeholders in the wireless communications market. Characteristics as, for example, the degree of consensus about the utility of SDR technology and the awareness of features and limitations are studied by application of the theory of technological frames. This theory helps us understand how and when technology evolution takes place. Finally we describe the value network structures of some potentially viable application areas for SDR and suggest some possible business opportunities based on SDR technology.This thesis is carried out as a case study and the research data is obtained from secondary sources, such as literature and Internet publications as well as interviews with people well experienced in the field of wireless communications.

Studien har utförts på företaget Ericssons avdelning för strategiskt inköp och syftar till att utforma en inköpsportfölj som kan positionera maktbalansen mellan Ericsson och dess leverantörer. Undersökningen utförs på tre olika kategorier inom inköp; Hardware, Logistics och R&D Consultancy Services. Studien ger även förslag på strategier som kan appliceras för att flytta maktbalansen till en mer fördelaktig position. För att kunna utforma en maktpositioneringsmodell undersöker studiens författare vad som orsakar och kännetecknar makt i en kund- och leverantörsrelation, samt vilken påverkan de identifierade faktorerna tycks ha.Ericsson är ett globalt företag som är världsledande inom kommunikationsteknologi. Inköp av produkter och tjänster står för en ansenlig del av organisationens kostnader, varpå inköpsarbetet blir av stor betydelse.