To understand the mechanism of a pressure-induced structural phase transition, it is important to know which bonding changes lead to the stabilization of the new structure. A useful approach in this regard is the quantum chemical topology, which provides a large variety of indicators for the characterization of interatomic interactions. In this work, a number of topological indicators are used to analyze the bonding changes during the pressure-induced phase transition from the cubic diamond (cd) to the β-Sn-type structure of the elements of the 14th group of the periodic table. The ability of these indicators to reflect the presence of the cd → β-Sn transition in experiment for Si, Ge and Sn and its absence for carbon is investigated. Furthermore, the effect of pressure on the interatomic interactions in the cd- and β-Sn-type structures is examined. It is observed that the energy change along the cd → β-Sn transformation pathway correlates with the evolution of certain parameters of the electron density and the electron localizability indicator (ELI-D). Accordingly, criteria of structural stability were formulated based on characteristics of interatomic interactions. These results can serve as guidelines for the investigation of other solid-state phase transformations by the topological methods.

To understand the mechanism of a pressure-induced structural phase transition, it is important to know which bonding changes lead to the stabilization of the new structure. A useful approach in this regard is the quantum chemical topology, which provides a large variety of indicators for the characterization of interatomic interactions. In this work, a number of topological indicators are used to analyze the bonding changes during the pressure-induced phase transition from the cubic diamond (cd) to the β-Sn-type structure of the elements of the 14th group of the periodic table. The ability of these indicators to reflect the presence of the cd → β-Sn transition in experiment for Si, Ge and Sn and its absence for carbon is investigated. Furthermore, the effect of pressure on the interatomic interactions in the cd- and β-Sn-type structures is examined. It is observed that the energy change along the cd → β-Sn transformation pathway correlates with the evolution of certain parameters of the electron density and the electron localizability indicator (ELI-D). Accordingly, criteria of structural stability were formulated based on characteristics of interatomic interactions. These results can serve as guidelines for the investigation of other solid-state phase transformations by the topological methods.

Det övergripande syftet med denna studie är att undersöka viktiga faktorer till att individer lyckas lämna en kriminell livsstil. Detta är av intresse att undersöka då politiker och andra aktörer i samhället som arbetar med att bekämpa kriminalitet får kunskap om dessa faktorer och kan arbeta utifrån det. Tillvägagångssättet för studien har varit en kvalitativ innehållsanalys baserat på semistrukturerade intervjuer. Studiens syfte har besvarats genom intervjuer med fyra personer från föreningen KRIS - Kriminellas revansch i samhället. Samtliga intervjupersoner har tidigare suttit i fängelse och haft en kriminell livsstil som de har lämnat. I resultatet pekades sju faktorer ut som viktiga för att kunna lämna en kriminell livsstil - individens spiritualitet, att individen varit med om vändpunkter som gett en tankeställare, individens inre övertygelse, gemenskap,ett adekvat myndighetsstöd, identifikation och nykterhet. Faktorerna har varit viktiga både enskilt och tillsammans med varandra. Denna studie visar även på ett varierande och delvis bristfälligt stöd från myndigheter i individers process av att lämna en kriminell livsstil. Resultatet har analyserats med hjälp av de teoretiska perspektiven: kontrollteori, stämplingsteori, Parks meningsskapande teori och resiliens. / The overall purpose of this study is to investigate important factors for individuals' criminal desistance process. This is of interest to investigate in order for politicians and other actors in society who work to combat criminality to gain knowledge of these factors so they can work based on that knowledge. The approach in the study has been a qualitative content analysis based on semi-structured interviews. The purpose of the study has been answered through interviews with four people from the association KRIS - Kriminellas revansch i samhället. All of the interviewed persons are former prisoners and have in the past lived a criminal lifestyle which they now have left. In the results, seven factors were identified as important for being able to leave a criminal lifestyle - the individuals connection to spirituality and religion, that the individual experienced turning points which contributed to the person having an eye-opener, possessing an inner conviction, the access to a prosocial community, an adequate support from authorities, identification and sobriety. These factors have been important both individually and combined with each other. This study also shows a varying and a partly inadequate support from authorities during individuals' desistance process. The result has been analyzed with help from several theoretical perspectives: control theory, labeling theory, Parks theory of meaning making and the theory of resilience.

This study aims to examine the effect of organisational commitment and employee’s pro-environmental behaviour at home on their intention to adopt green practices at the workplace in the context of hotel industry, by taking the theory of planned behaviour as a conceptual framework. Hotel employees play a critical role that affects customers' experiences, which then affects the overall hotel performance. However, the mechanism that affects their behavioural intention has yet to be investigated properly. Thus, a survey was conducted to collect the data from employees working in green and non-green hotels in Malaysia. Overall, there were 407 responses received, which represented a response rate of 55.75 percent. Then, a set of hypotheses was tested using the structural equation modelling. The empirical results indicate that organisational commitments have a positive effect on the attitude for engaging in a green behaviour and subjective norm, which in turn influenced employees’ intention to adopt green practices at work. Meanwhile, employees’ pro environmental behaviour at home has an indirect impact on employee’s intention to adopt green practices in the workplace through their attitude for engaging in a green behaviour, subjective norms, and perceived behavioural control. The findings lead to a theoretical contribution by incorporating another theory into the theory of planned behaviour, which is the social bond theory through organisational commitment and spill-over effect through pro environmental behaviour at home. Subsequently, a practical recommendation from this research is attainable to policy makers and hotel providers in order for them to understand and increase employees’ willingness to adopt green practices at the workplace. / The full text will be available at the end of the embargo: 15th Dec 2026

Les réactions de type Ugi sont connues depuis une cinquantaine d’années. Ces réactions multicomposants mettent en jeu un aldéhyde, une amine, un isonitrile ainsi qu’un dérivé acide (acide carboxylique ou phénol activé). Dans ces travaux, la structure électronique des isonitriles, composé au coeur de ces réactions a été étudiée. La forme carbénique RN=C s’est révélée majoritaire contrairement à toute attente. La linéarité de la molécule a pu être interprétée grâce aux contributions des formes minoritaires. La seconde partie s’est focalisée sur l’étude théorique et expérimentale des couplages de type Ugi. Contrairement à la réaction de Ugi-Smiles, le réarrangement final de la réaction de Ugi, un réarrangement de Mumm, s’est révélé non cinétiquement déterminant. L’importance du rôle de l’environnement a été étudiée par le biais d’une microsolvatation. La compréhension accrue de la réaction de Ugi-Smiles a fait émerger deux nouveaux partenaires acides : les trichlorophenols et les nitrosophenols. Les premiers ont permis d’isoler pour la première fois desaryl-imidates de phénol. Les seconds ont été utilisés pour développer une nouvelle voie de synthèse debenzimidazoles à partir des adduits de Ugi-Smiles correspondants. Enfin, les adduits de type Ugi ont été mis à profit pour développer une nouvelle réaction palladocatalysée d’ouverture d’aminocyclopropanes. Cette ouverture conduit à l’accès rapide de produits hétérocycliques dont des tétracycles complexes suite à une réaction tandem impliquant un couplagede Heck. / Ugi type reactions are well known for decades. These multicomponent reactions involve an aldehyde,an amine, an isocyanide and an acid compound (carboxylic acid or activated phenol). Herein, electronicstructure of isocyanides, as key compounds of these reactions, was studied. Surprisingly, thecarbenic form RN=C was found to be the major one. Contribution of minor mesomeric structureexplains the linearity of the molecule. Then, Ugi and Ugi-Smiles couplings were studied theoreticallyand experimentally. Contrary to the Ugi-Smiles reaction, the final rearrangement of the Ugi coupling,a Mumm one, was not found to be a rate determining step. Importance of microsolvation was investigated.The comprehension of the mechanism of Ugi-Smiles reaction prompted us to investigatetheoretically new acidic partners. Trichlorophenols permitted to isolate the aryl-imidate for the firsttime with a phenol. Nitrosophenols were also considered. Confirmed experimentally, these new adductswere used to propose a new synthesis of benzimidazole. Finally, Ugi type adducts have been used todevelop a new palladium-catalyzed ring-opening of aminocyclopropanes. Rapid access to heterocycliccompounds, such as complex tetracycle with a tandem Heck coupling, can be obtained by this strategy.

對偏差行為的解釋有多種理論，不過以後天的角度詮釋偏差行為，則社會控制理論、自我控制理論是最有力的解釋理論。本研究亦欲圖驗證此兩種理論在多變量潛在成長模型的效用。因此，研究者採用臺灣教育長期追蹤資料庫之資料，以自我控制信念、親子關係、同儕關係、學校依附感、教育抱負、學業成就預測偏差行為之變化。此外，並探究性別對潛在成長模型之影響。茲將研究成果陳述如下。 1、偏差行為隨著年級逐漸增加，日益增加，變異數亦逐漸擴大。 2、整體多變量潛在成長模型中，整體模式適配度良好。 3、自變項對偏差行為截距、斜率解釋量分別為.19、.32，顯示模式的解釋量仍有改善空間，其中對截距之預測達顯著者，分別為同儕關係截距、學校依附感截距、學業成就截距、親子關係截距。對斜率之預測力達顯著者，分別為學校依附感斜率、學校依附感截距、同儕關係斜率、同儕關係截距、教育抱負截距。 4、運用多群組分析，發現男女生並無測量不變性。 5、性別對偏差行為有重要影響。 6、預測女生的斜率主要考量其學校依附感和同儕關係，但預測男生偏差行為的斜率除了與學校、同儕的關係外，還要考量其教育抱負。 最後，根據上述的結論，研究者分別提出實務、研究方法、未來偏差行為研究之建議，以作為參考。 / The cause of deviation behavior is explained by many theories. However, social control theory and self control theory are the most famous and important theories. Research would like to confirm the theories which are applied in multivariable latent growth curve model. Therefore, TEPS data are analyzed to investigate the model, and the results are as follows: (1)Deviation behavior gradually increases with time and variety of it also rises. (2)The fit of model is good. (3)The intercept is explained 19% by independent variables and the slope is explained 32%. In addition, it is significant for the intercept of the relation of peer group, attachment feeling of school, parental relation and academic achievement in the regression which is employed to anticipate the intercept. It is significant that the intercept of the relation of peer group, attachment feeling of school, and educational ambition and the slope of peer group, and attachment feeling of school can anticipate slope of deviation behavior effectively. (4)Employing multi-group analysis, there exist gender differences in the model. (5)Sex has influence on deviation behavior. (6)For girls, the slope of deviation behavior is anticipated by social relations, but for boys, besides the peer relationship, it is also included the educational ambition. According the results, some suggestions are proposed for future researches and the administration authority.

Youth crime is a continuously growing social problem, where professionals face the complexity of the phenomenon. To manage and prevent youth crime, it is essential to implement measures and preventive interventions where field workers play a crucial role. Therefore, it is interesting to examine how field workers experience and actively implement crime prevention measures for children and youth in Sweden. This is a qualitative study based on two semi-structured group interviews with field workers. The analysis of the empirical material was conducted using a qualitative methodology, previous research, and two selected theories relevant to the study's purpose. The results of the analysis generated various themes describing the field workers' experiences and insights.  The results section of the study is divided into different parts related to the three research questions we aim to investigate. Additionally, the results section outlines the difficulties field workers face in their professional roles, where resources, time, and collaboration have proven to be lacking. Finally, it has emerged that relationship building, and early interventions are effective methods for preventing youth crime in Sweden. / Ungdomskriminalitet är ett ständigt växande samhällsproblem där yrkesverksamma står inför fenomenets komplexitet. För att kunna hantera och förebygga ungdomsbrottsligheten är det av vikt att genomföra åtgärder och förebyggande insatser där fältarbetare utgör en viktig insats. Det blir därför intressant att undersöka hur fältarbetare upplever och aktivt genomför brottsförebyggande åtgärder för barn och unga i Sverige. Detta är en kvalitativ studie som grundar sig på två semistrukturerade gruppintervjuer med fältarbetare. Analysen av det empiriska materialet genomfördes genom en kvalitativ metodik, tidigare forskning och två valda teorier som är av relevans för studiens ändamål. Resultaten från analysen genererade i olika teman som beskriver fältarbetarnas upplevelser och erfarenheter.Studiens resultatdel är fördelad i olika delar relaterat till de tre frågeställningar som vi ämnar undersöka. Utöver detta redogör resultatdelen för fältarbetarnas svårigheter i deras yrkesroll där resurser, tid och samverkan har visat sig vara bristfällig. Slutligen har det framkommit att relationsskapande och tidiga åtgärder är effektiva metoder för att förebygga ungdomsbrottslighet i Sverige.

This Master thesis explores delinquency of juvenile Czechs and Germans from seventh to ninth grade based on quantitative data. The data comes from an International Self-Report Delinquency study (ISRD-2), which is anchored primarily in the Social control theory (Hirschi, 1969/2002) and the General theory of crime (Gottfredson, Hirschi, 1990). Therefore, in the first section, attention is paid to these and other selected criminological theories; the other theories are mainly the strain theories and the cultural deviance theories. In the second section, the thesis deals briefly with the socio- cultural differences and similarities between the Czech Republic and Germany. The core of the thesis is the third, analytical section, which presents the findings of statistical analysis. A conclusion is reached that the theories studied are by far less contradictory than what the authors of the social control theory and the general theory of crime claimed them to be. It rather seems that the individual theories are complementary and often lead to the same predictions. Hypotheses are confirmed that some characteristics of the pupils` relation to their school are related to delinquency: Pupils who like going to school are somewhat less delinquent than pupils who do not. Pupils who play truant are substantially...