The game of rugby has been played for over a century and yet its intricacies are still not fully understood. The key ingredient coaches are seeking is what can be added to a team’s make-up that will result in an increase in that teams level of playing success. The objective of this study is the exploration of the biomechanical aspects of movement in a rugby context specifically looking at the stages before, during and after contact. The hypothesis is that the optimal use of running lines in rugby union will lead to more successful breaches in the opposition’s defensive lines thus an increase in linebreaks will occur. In order to make a comparison based on scientific research principles, nine matches played during the 2001 season was compared with nine matches played during the 2002 season. For each match played in the 2001 and 2002 seasons the total number of linebreaks achieved in a match was calculated. In addition the total number of linebreaks achieved in the 2002 season was further subdivided into the specific categories of intervention in order to determine which intervention had the biggest impact on the total number of linebreaks achieved. By means of video footage of the matches played notational analysis was performed and information was gathered in order to gain data for further evaluation. The actions regarding the execution of the linebreaks were evaluated manually in respect of the intervention that was imposed during the coaching of the team during the 2002 season. Without exception a comparison between similar teams played during both seasons indicated that the total number of linebreaks achieved during the 2002 season was much higher than when the team competed against similar opposition during the 2001 season. The aggregate numbers indicated a significant increase in linebreaks from the 2001 to 2002 season. This conclusion was achieved by means of a simple T-test. Firstly an applied F-test test was done to determine whether the two samples had equal variances or not. Under the null hypothesis we assume that the variances of the two samples are equal, while the alternative states that the two samples have different variances. A value for the test statistic that is greater than the critical value will lead to a rejection of the null hypothesis. The test statistic was calculated and evaluated against the F (8,8) = 2.59 critical value on a 5% level of significance. The value of 15.921 is greater than the critical value of 2.95 and therefore the null hypothesis cannot be accepted, concluding that the two samples do not have equal variances. We then proceeded to test whether the 2002 average linebreaks are significantly higher than the average linebreaks achieved in the 2001 season. Under the null hypothesis the two sample averages are equal. Under the alternative, the 2002 average is higher than the 2001 average. In contrast to normal T-tests this specific test was a one-sided upper or right hand test due to the fact that we are testing whether the one average is greater and not equal to the other. Therefore, we would only reject the null hypothesis of equal sample averages if the test statistic were greater than the appropriate critical value. The calculated test statistic is 4.4827 and was evaluated against the t 0.05,9 = 1.833 critical value. Once again we cannot accept the null hypothesis. Therefore we can conclude that the average of the total linebreaks made during the 2002 season is statistically greater than the average of the total linebreaks made during the 2001 season. The results of this study therefore indicate that the new techniques incorporated into the coaching of the team in 2002 did positively influence the number of linebreaks when compared to the 2001 season. / Dissertation (MA (Human Movement Science))--University of Pretoria, 2005. / Biokinetics, Sport and Leisure Sciences / unrestricted

The goal of this study is to gain a better understanding of the factors that play a role in dominant collisions in rugby as well as the relative significance of dominant collisions as an indicator of success. By means of video footage of matches played during the 2003-2005 Super 12 competitions, notational analysis was performed and information was gathered in order to gain the relative data. The hypothesis stands that if a team is aware of the factors that lead to a dominant collision, are able to execute them in a match situation, that team should be more successful. The following key performance measurements were evaluated in order to indicate how each factor affected the level of success of a team. They are as follows: average total number of collisions for a try to be scored, average total number of forced missed tackles for a try to be scored, ratio of dominant collisions versus passes executed when a try is scored and average positive velocity change of dominant collisions resulting in a try being scored. In order to prove the hypotheses a k-sample case will be used. The samples are related, thus the data used is interval and ratio. Therefore, the test used will be the repeated measures ANOVA test, a special form of n-way analysis of variance. The statistical evaluation is the critical test value where the d.f values are as following: Key Measurement (3,8), Year Rating (2,8), Year Rating by Key Measurement (3,8). When comparing these with a statistical table for critical values of the F distribution for Ą = 0.05, the critical values are as following: (3,8): 4.07, (2,8): 4.46, and (3,8): 4.07. Thus, the statistical results are grounds for accepting all three null hypotheses and concluding that there is a statistical significance of at least 95% with an alpha of 0.05 between the means in all three instances. This shows that the data captured for the twelve teams for all tries scored by these teams over a period of three years and for the four key measurements, have a statistical significance of 95% for the readings respectively. After evaluation of the data and making use of regression analysis and multiple regressions in order to establish the correlation between log position and the four key measurements there can be no doubt that the teams that finished higher on the log did indeed perform better according to the identified key performance measurements. / Thesis (DPhil (Human Movement Science))--University of Pretoria, 2006. / Biokinetics, Sport and Leisure Sciences / unrestricted

Significant research has investigated Jack Gibb’s model of defensive and supportive communication, but little has explored the influence of the type of talk -- defensive or supportive -- on perceptions of communication climate and the role that verbal aggressiveness may play in influencing both the types of talk and these perceptions. This thesis explored the relationship between defensive and supportive talk, verbal aggressiveness and communication climate using a mixed-method approach. Specifically, the Verbal Aggressiveness Scale was used to group participants for a dyadic problem solving exercise which generated conversational data that was analyzed qualitatively. Then, the Communication Climate Inventory was used to measure participants’ perceptions of the communication climate that emerged in their problem-solving dyad. The findings highlight factors that may influence the perception of communication climate. Examples of supportive talk that builds positive communication climates and limits the effects of verbal aggressiveness and examples of defensive talk that leads to negative communication climates are provided. This research demonstrates that language has an influence on communication climate through the words that shape the complex ways people perceive and understand each other and, interestingly, that the negative impact of defensive communication overrides the positive impact of supportive communication on the emergent communication climate.

Hur stress och oro hanteras är avgörande för hälsan. För att utveckla kunskapen om stresshantering syftar denna studie till att undersöka skillnader i förekomst och samband mellan problemfokuserad, emotionsfokuserad och undvikandeorienterad coping samt defensiv pessimism. En kvantitativ enkätundersökning genomfördes med 62 KBT-studenter och 87 övriga studenter från olika utbildningar. Resultaten visade att KBT-studenter använder problemfokuserad coping mer än övriga studenter, att övriga studenter använder emotionsfokuserad coping mer än KBT-studenter, samt att äldre KBT-studenter använder defensiv pessimism mindre än yngre KBT-studenter. Dessutom hittades ett negativt samband mellan problemfokuserad och emotionsfokuserad coping och ett positivt samband mellan emotionsfokuserad coping och defensiv pessimism. Sammanfattningsvis visar studien att det finns samband mellan, samt ålder- och utbildningsskillnader i användande av olika copingstrategier. / How stress and anxiety are handled is vital to health. To develop knowledge about coping this study aims to investigate differences in the prevalence and correlation between problemfocused, emotionfocused and avoidanceoriented coping and also in defensive pessimism. A quantitative survey was conducted with 62 CBT-students and 87 other students from different courses. The results showed that CBT students use problemfocused coping more than other students, that other students use emotionfocused coping more than CBT-students and that older CBT-students use defensive pessimism less than younger CBT-students. A negative correlation was also found between problemfocused and emotionfocused coping and a positive correlation between emotionfocused coping and defensive pessimism. In summary, the study shows that there are correlations between, as well as age- and educational differences in the use of different coping strategies.

In the form of a theory testing case study based upon the seminal works of Kenneth Waltz and Stephen Walt, this thesis seeks to uncover whether defensive realism can be applied with focus on Israeli international conduct. This is defined by their wartime actions as well as their peacekeeping efforts. The paper analyses two major historical events; namely the six-day-war and the recent Israeli-Arab peace treaties. Thereafter it delves into the preexisting conditions of each combattant in the war, then reviews the events unfolding during the conflict in the first part of the analysis, followed by the second part examining the contents of the Abraham Accords, as well as the official statements of Bahrain and Sudan regarding peace with Israel.  Following this, the thesis examines the details and terms of the Abraham Accords and treaties between Israel, Bahrain and Sudan. A hypothesis is presented predicting that both tenets of defensive realism will be applicable to their respective parts of Israeli history. It is subsequently found that the first tenet of defensive realism has explanatory value with regards to the six-day-war, the second tenet of defensive realism that follows also proves to hold significant merit, and the thesis concludes that the given hypothesis therefore is correct. Both tenets of defensive realism are applicable to respective units of analysis on Israel, which therefore suggests that the theory of defensive realism offers a good framework for explaining the actions of the Israeli state.

This thesis investigates and compares the performance and characteristics of defensive and cyclical sectors on the Swedish stock market during 2003-2020 and the financial crisis in2007-2008, taking monthly price developments from nine sectors. The purpose is to examine the differences in sector performances based on the estimations of systematic risk. Using the relationship between risk and return, we aim to find the most beneficial investment strategy for investors with a long-term investment horizon and provide knowledge to investors who may want to change investment schemes during stock market crises to protect their portfolios from risk. To determine the sectors' classifications, the beta coefficient from CAPM is used. Moreover, alpha and Sharpe ratios are used as performance measures with the aim to find evidence of differences in performance between the classifications. The results show that beta is inconstant over time, and sectors behave differently depending on their dependence to business conditions, demonstrated by different patterns in beta for the two different classifications when comparing the crisis to the full period. The empirical evidence indicates that a defensive investment strategy is beneficial when considering the relationship between risk and return.

Increased competition by new market entries has long been studied with defensive marketing strategies (DMS) being identified as one of the ways of combating a new competitor. There is limited research concerning the Swedish eCommerce business landscape and its competitive environment and adding the fact that Amazon, in late 2020, launched in Sweden this study aims to outline what DMS Swedish eCommerce businesses have implemented as a result of Amazon’s entry. Qualitative semi-structured interviews were held with respondents in key positions of firms, where the individual either was working with or consulting eCommerce businesses. The findings suggested that, in its generality, that no new DMS has been implemented as a result of the market entry. Amazon is expressed to have a weak position and lack in several aspects compared to Swedish eCommerce. The biggest fear lies in Amazon’s future with many potential “strong cards” left to play in their sleeve. However, the entry of Amazon increased the focus of some areas, as they were seen to become more important for survival and competing.

For a graph G = (V, E), a non-empty set S ⊆ V is a defensive alliance if for every vertex v in S, v has at most one more neighbor in V - S than it has in S, and S is an offensive alliance if for every v ∈ V - S that has a neighbor in S, v has more neighbors in S than in V - S. A powerful alliance is both defensive and offensive. We initiate the study of powerful alliances in graphs.

Companies have always had to adapt to external changes by innovation and reorganisation, in order to stay competitive and survive. For many industries, such as the automotive industry for example the need to quickly adapt to new conditions is expected to increase. In the automotive industry this is due to amongst other factors the globalised value chains and megatrends such as decarbonisation, autonomous vehicles and shared mobility. The megatrends could possibly be disruptive for the industry. Therefore, the ability to successfully implement necessary changes is a key ability. Defense mechanisms are psychological strategies that are unconsciously used to protect a person from anxiety arising from unacceptable thoughts or feelings. While protecting the individual from anxiety, they often result in a resistance to changes and is therefore problematic for organisations in need of implementing change. Emotional contagion is a subconscious process that can make people emotionally converge.  The authors propose that within a business context, emotional contagion enables stable organizational groups to converge with regard to which defense mechanisms that are employed. Within a case study of the automotive supplier Swedish Electro Magnets a quantitative analysis of defense styles was conducted based on the Defense Style Questionnaire on groups in the organisation. Three defense style categories were analysed Mature, Neurotic and Immature defense styles.  For Mature defense styles significant findings confirmed that stable groups do converge with regard to what mechanisms are employed. Neurotic defense styles were not found significant, however these results are rather uncertain with a power of 15 %. Immature defense styles could not be analysed because of inhomogeneity of variance between the groups on this variable.  The study shows that the two theories of Emotional contagion and Defence mechanism are interacting within the organisation of Swedish Electro Magnets with regard to Mature defense styles. The study also finds a large effect size, that suggests that the differences in the defense styles are visible to the naked eye of a careful observer. The large effect size makes the findings a promising field for further research to ultimately reduce the resistance to change in organisations. / Företag har alltid behövt anpassa sig till yttre omständigheter genom innovation och omorganisering för att bevara sin konkurrenskraft och överleva. För många branscher som exempelvis fordonsindustrin, förväntas behovet av att snabbt kunna anpassa sig till nya omständigheter öka. Bland annat på grund av globaliserade värdekedjor och megatrender såsom koldioxidneutralitet, självkörande fordon och delad mobilitet. Potentiellt kan megatrender verka disruptivt för industrin. Därför är förmågan att framgångsrikt implementera förändring en nyckelfaktor Defense mechanisms är undermedvetna psykologiska strategier använda för att skydda en person från ångest som uppkommer från oacceptabla tankar eller känslor. Medan individen skyddas från ångest, leder ofta också Defense mechanisms till motstånd till förändring och är därför problematiskt för företag som är i behov av att implementera förändring. Emotional contagion är en undermedveten process som kan få personer att känslomässigt konvergera.  Författarna föreslår att i företagssammanhang kan Emotional contagion få stabila grupper att konvergera med avseende på vilka Defense mechanisms som används av medlemmarna i gruppen. I en fallstudie på fordonsindustri underleverantören Swedish Electro Magnets har en kvantitativ studie genomförts baserat på självskattningsformuläret defense style Questionnaire på grupper i organisationen. Tre defense style kategorier undersöktes Mature, Neurotic och Immature.  För Mature defense styles fanns signifikanta resultat vilka konfirmerade att stabila grupper konvergerar för vilka Defense mechanisms som används. Neurotic defense styles gav inte signifikanta resultat. Dessa resultat är dock osäkra då analysens styrka endast var 15 %. Immature defense styles kunde inte analyseras på grund av inhomogenitet i variansen mellan grupperna för denna variabel.  Studien visar att de två teorierna Emotional contagion och Defense mechanisms interagerar i organisationen Swedish Electro Magnets med avseende på Mature defense styles. Studien fastslår också att det föreligger en stor effektstorlek, vilket tyder på att skillnader i defense styles är synlig för blotta ögat för en uppmärksam observatör. Den stora effektstorleken medför att fynden utgör ett lovande fält för fortsatt forskning vilket slutligen kan leda till att motstånd till förändring i organisationer kan reduceras.

The criminal law has been critiqued as an unsuitable system to regulate adverse medical events (AME) because the unintentional nature of AME renders it incompatible with the penal objectives of the criminal law. This project uses an interpretivist approach to examine how blameworthiness is constructed in criminal cases involving AME. Situated within a contextual constructionist paradigm, and utilizing a theoretical framework that draws on legal pragmatism, symbolic interactionism, Habermasian thought, and Goffmanian frame analysis, this project employs a case study approach to explore how appellate courts construct AME as a product of fate or agency. The British case of Bawa-Garba v. R. (2016) and the Canadian case of R. v. Javanmardi (2019) are analysed using thematic analysis. It is concluded that the majority of the Supreme Court of Canada in Javanmardi constructed the AME within the realm of fate, contrasting the minority in Javanmardi and full panel of the England and Wales Court of Appeal in Bawa-Garba which constructed the AME within the realm of agency. It is also concluded that the majority in Javanmardi utilised pragmatic adjudication to determine blameworthiness. It is suggested that these findings could reduce fear of criminal liability among Canadian health care professionals. Future research is suggested to examine the legal cultures underlying this variation, critically explore the intersection of race and criminal prosecution of AME, and apply structural violence as a theoretical frame to further interrogate AME as a systemic failure.