Anhand von gesellschaftspolitischen, demographischen und kulturellen Entwicklungen werden in Anlehnung an Michel Foucault die konstituierenden Regeln eines innerjüdischen Diskurses beschrieben, welcher vor zwei Jahrzehnten in der Bundesrepublik Deutschland und der DDR entstanden ist. Innerhalb dieses Diskurses wird die junge jüdische Gegenwartsliteratur verortet, die durch signifikante Korrespondenzen zur gesellschaftlichen Wirklichkeit gekennzeichnet ist. Mithilfe einer methodenpluralistischen Vorgehensweise, die neben literatur-wissenschaftlichen Ansätzen auch solche der geschichtsphilosophischen, sozio-psychologischen, kunst- und kulturhistorischen Forschung einbezieht, wird die Konstruktion junger jüdischer Identität in ausgewählten Texten exemplarisch untersucht. Wiederkehrende Konstanten der Identitätskonstruktionen werden genauso herausgearbeitet wie Divergenzen der ästhetischen Verfahren, durch die subversive, oftmals geschlechtsspezifisch konnotierte Deutungsebenen eröffnet werden. Dem übergeordneten Interesse der Arbeit folgend, werden die Ergebnisse der Textanalysen innerhalb des diskursiven Aussagekontextes betrachtet. / Following Michel Foucault, the author uses socio-political, demographic, and cultural developments to define a set of rules organizing the inner-Jewish discourse that emerged approximately two decades ago in the Federal Republic of Germany and the former GDR. Within that discourse, the author locates a body of contemporary German-Jewish literature characterized by strong resemblances to socio-historical reality. The dissertation examines the construction of contemporary Jewish identity within selected works of literature, using a variety of methodological approaches from the fields of literary criticism, history of art, culture and philosophy as well as socio-psychology. Recurring identity traits within those constructions are emphasized as well as differences in the aesthetic scheme which often bear subversive, gender specific connotations. Consistent with the overall aim of the dissertation, the results of the literary analyses are transferred to the discursive level.

Technology has become part of society’s everyday functions, changing rapidly and providing widespread mobility. In South Africa alone, the amount of internet users grew from 8,5 million to 24,9 million in only three years (2011-2014). Currently 90% of these users access this facility from their mobile devices. This statistic illustrates the trend that South Africans are moving towards a continually connected lifestyle, a situation in which information and communication technology (ICT) seems to have become omnipresent. Due the rapid growth of ICT technology and its adoption into people’s lives (both personally and professionally) the influence of such a phenomenon needed to be investigated to understand its impact on individuals and society. Thus, the objective of the present research was to explore the role ICT plays in employees’ work and family domain. The research followed a qualitative research approach and made use of snowball sampling. The sample of participants (N=25) were mostly employees from a professional organisation. Semi-structured interviews were conducted to collect data and the interviews were recorded, transcribed and processed through thematic analyses. The analyses revealed the following four main themes with sub-themes flowing from it: 1) the usage of ICT; 2) the role of ICT usage; 3) the challenges relating to ICT usage; and 4) managing work-life interaction by using ICT. Theme 2 lend itself to be sub-divided into four minor subthemes namely: 1) the positive role of ICT usage; 2) the negative role of ICT usage; 3) the role ICT plays in relationships; and 4) the increased expectations brought about by ICT usage. The current research was not without certain limitations, which should be noted. The researcher only investigated the employees themselves and did not extend the unit of analysis to include the household of employees (esp. the partner or spouse). In addition, the majority of the participants were Afrikaans-speaking males, which is not a true reflection of the multicultural society of South Africa promoting gender equality in the work place. Based on the findings of the present research, various recommendations could be made. Future research could firstly enlarge the sample to be more representative of South Africa’s multicultural and diverse society, and secondly, to include the partner or spouse of employees. Organisations should also consider the implementation of various policies on ICT usage. These directives could include the following: a policy to ensure across the board ICT implementation; an after-work hours policy to ensure as little as possible infringement on employees work-life interaction; and a hierarchical policy ensuring the correct communication channels are followed. Lastly, future research could also do multiple comparative studies on the differences between the degree of ICT adoption, or the amount of ICT devices employees utilise and the impact this has on their work-life interaction. Such research can also investigate how the decrease in face-to-face communication impacts social interaction in both the work and nonwork domains and thereby affects employees’ work-life interaction. / MCom (Industrial Psychology), North-West University, Potchefstroom Campus, 2015

Technology has become part of society’s everyday functions, changing rapidly and providing widespread mobility. In South Africa alone, the amount of internet users grew from 8,5 million to 24,9 million in only three years (2011-2014). Currently 90% of these users access this facility from their mobile devices. This statistic illustrates the trend that South Africans are moving towards a continually connected lifestyle, a situation in which information and communication technology (ICT) seems to have become omnipresent. Due the rapid growth of ICT technology and its adoption into people’s lives (both personally and professionally) the influence of such a phenomenon needed to be investigated to understand its impact on individuals and society. Thus, the objective of the present research was to explore the role ICT plays in employees’ work and family domain. The research followed a qualitative research approach and made use of snowball sampling. The sample of participants (N=25) were mostly employees from a professional organisation. Semi-structured interviews were conducted to collect data and the interviews were recorded, transcribed and processed through thematic analyses. The analyses revealed the following four main themes with sub-themes flowing from it: 1) the usage of ICT; 2) the role of ICT usage; 3) the challenges relating to ICT usage; and 4) managing work-life interaction by using ICT. Theme 2 lend itself to be sub-divided into four minor subthemes namely: 1) the positive role of ICT usage; 2) the negative role of ICT usage; 3) the role ICT plays in relationships; and 4) the increased expectations brought about by ICT usage. The current research was not without certain limitations, which should be noted. The researcher only investigated the employees themselves and did not extend the unit of analysis to include the household of employees (esp. the partner or spouse). In addition, the majority of the participants were Afrikaans-speaking males, which is not a true reflection of the multicultural society of South Africa promoting gender equality in the work place. Based on the findings of the present research, various recommendations could be made. Future research could firstly enlarge the sample to be more representative of South Africa’s multicultural and diverse society, and secondly, to include the partner or spouse of employees. Organisations should also consider the implementation of various policies on ICT usage. These directives could include the following: a policy to ensure across the board ICT implementation; an after-work hours policy to ensure as little as possible infringement on employees work-life interaction; and a hierarchical policy ensuring the correct communication channels are followed. Lastly, future research could also do multiple comparative studies on the differences between the degree of ICT adoption, or the amount of ICT devices employees utilise and the impact this has on their work-life interaction. Such research can also investigate how the decrease in face-to-face communication impacts social interaction in both the work and nonwork domains and thereby affects employees’ work-life interaction. / MCom (Industrial Psychology), North-West University, Potchefstroom Campus, 2015

With increasing scrutiny over standards of financial statement transparency, this paper attempts to resolve misconceptions about effects of negative special items on future earnings. Value investor Benjamin Graham advises students to avoid firms that consistently post special items, because it is indicative of the volatility of the business. Using panel data from 2003 to 2014 and a regression structure used by Burghstaler et al. (2002), I find in contrast to Graham’s warning, that negative special items significantly increase earnings in the four quarters following its occurrence. Furthermore, I analyze results by sector and find that negative special items in the Information Technology sector have the most dramatic positive effects on future earnings. This study gives investors more insight as to what negative special items mean for future earnings of a company.

This thesis portrays new information concerning the cloud-to-ground (CG) lightning flashes or ground flashes produced by thunderclouds. It emphasizes the importance of characterizing lightning studies as the relationship between lightning mechanisms, and of incorporating the influence of geographical location, latitude and storm type. Sweden, Malaysia and USA were chosen as the main locations for field experiments in 2009 to 2011 to gather a significant number of negative and positive CG flashes. This work provided data on a total of 1792 CG lightning flashes (1685 negative and 107 positive ones) from a total of 53 thunderstorms by monitoring both the slow and the fast electric field and the narrowband radiation field at 3 and 30 MHz signals simultaneously. This thesis is comprised of: (i) the relationship of the Low Positive Charge Region (LPCR) and Preliminary Breakdown Pulse (PBP) trains to the occurrence of negative CG, (ii) slow field changes generated by preliminary breakdown processes in positive and negative ground flashes, and (iii) the occurrence of positive and negative ground flashes. It was revealed that the PBP train appeared have a higher strength in the in Sweden. The strength of the PBP train was caused by the LPCR; in contrast,  weak PBP trains were characteristic in tropical countries constituting insignificant LPCR and needing little energy to break the “blocking” agent to allow the flash to propagate downward to the ground. The second contribution concerns the characteristics of the PBP train mentioned; this includes novel information for Malaysia. Further, it is stated that there are some different characteristics in the PBP trains in Johor, Malaysia and Florida, USA. The studies of slow field changes generated by preliminary breakdown processes clarifies unclear features concerning the starting position of slow field changes generated by preliminary breakdown processes in positive and negative ground flashes. It was found that the slow field changes did not occur before the initial process of the commencement of preliminary breakdown. Single-station electric field measurements incorporating narrowband radiation field measurement and high resolution transient recording (12 bits) with an accuracy of several nanoseconds, allows one to distinguish between the intracloud activities and the preceding processes of ground flashes. The results for the interstroke intervals, amplitude distribution of subsequent return-stroke (SRS) and the number of strokes per flash in the tropics, subtropics and northern regions were similar. Finally, a significant number of positive return-stroke (RS) electric fields provided statistically significant information on the characteristics of these strokes.

En så kallad hållbarhetsredovisning har blivit allt mer vanligt att använda sig av hos företag då intressenternas krav på hållbar medvetenhet ökar. Samtidigt har företag en tendens till att försköna verksamheten genom att redovisa för de positiva aspekterna i sina hållbarhetsredovisningar medan negativ information uteblir. Det gör att hållbarhetsredovisningarna framställs mer som ett kommersiellt verktyg för att förbättra företagets rykte och legitimitet, istället för att uppvisa företagets verkliga bild. Av den anledningen har den internationella organisationen Global Reporting Initiative (GRI) utmanat företag med en redovisningsprincip om balans i sina riktlinjer. Principen innebär att det ska finnas en balans mellan positiv och negativ information i hållbarhetsredovisningen. Syftet med uppsatsen har varit att ta reda på hur svenska banker kommunicerar ut sina negativa avslöjanden i sina hållbarhetsredovisningar. En kvalitativ dokumentanalys har använts som metod för att granska åtta svenska bankers hållbarhetsredovisningar. De åtta bankerna upprättar sina hållbarhetsredovisningar i enlighet med GRI:s riktlinjer. I studiens empiriska material har sex strategier kunnat identifieras vid bankernas kommunikation av negativ information. Strategierna som kunnat identifieras tyder på att de svenska bankerna strategiskt kommunicerar ut sina negativa avslöjanden i sina hållbarhetsredovisningar för att behålla eller skapa legitimitet. Med hjälp av den här studien har tidigare forskning stärkts och studien bevisar att flertalet av de identifierade strategier som de svenska bankerna använder, har även tidigare identifierats hos internationella företag i olika branscher. Studiens empiriska material har även kunnat bidra med tillägg till tidigare forskning och en ytterligare strategi som svenska banker använder sig av vid kommunikation av negativa avslöjanden i sina hållbarhetsredovisningar. Trots att tidigare forskning har stärkts tyder det på att de legitimitetsstrategier som tidigare identifierats inte kan generaliseras till samtliga branscher. Den här studiens bidrag till den svenska bankbranschen har således visat att bankerna använder andra sätt att legitimera sina negativa avslöjanden än vad tidigare forskning kunnat visa. / A, so called, sustainability report has become increasingly common to use for companies, in lined with the increased stakeholder demand for sustainable awareness. At the same time, companies tend to beautify the business by reporting positive aspects, while the negative information exclude. This leads to that the sustainability reports appear to be used as a commercial tool, to improve real image. For this reason the international organisation Global Reporting Initiative (GRI) has challenged the companies with an accounting principle of balance in their guidelines. According to the principle, it should be a balance between positive and negative information in the sustainability reports. The aim of this study was to find out how the Swedish banks communicate their negative disclosures in their sustainability reports. A qualitative document analysis has been used as a method to examine the eight Swedish banks sustainability reports. The eight banks create the sustainability reports according to GRI’s guidelines. In the empirical material, six strategies where identified in banks communication of negative information. The identified strategies indicate that the Swedish banks strategically communicate their negative disclosures in their sustainability reports, to maintain or create legitimacy. This study has strengthened previous research, and the study proves that most of the identified strategies that the Swedish banks use have previously been identified in international companies in different industries. The empirical material has also been able to contribute addition to previous research and an additional strategy that Swedish banks use when communicating negative disclosures in their sustainability reports. Although previous research has been strengthened, it means that the previously identified legitimacy strategies cannot be generalized to all industries. This study’s contribution to the Swedish banking industry has shown that banks use other ways to legitimize their negative disclosures, than previous research did not afford to do.

This dissertation is divided up into two parts, each examining a distinct theme. The rst part of our work concerns itself with open quantum systems and the relaxation phenomena arising from the repeated application of an interaction Hamiltonian on systems composed of quantum harmonic oscillators. For the second part of our work, we shift gears and investigate the wave propagation in left-handed media, or materials with simultaneously negative electric permeability and magnetic permeability . Each of these two parts is complete within its own context. In the rst part of this dissertation, we introduce a relaxation-generating model which we use to study the process by which quantum correlations are created when an interaction Hamiltonian is repeatedly applied to bipartite harmonic oscillator systems for some characteristic time interval . The two important time scales which enter our results are discussed in detail. We show that the relaxation time obtained by the application of this repeated interaction scheme is proportional to both the strength of interaction and to the characteristic time interval . Through discussing the implications of our model, we show that, for the case where the oscillator frequencies are equal, the initial Maxwell-Boltzmann distributions of the uncoupled parts evolve to a new Maxwell-Boltzmann distribution through a series of transient Maxwell-Boltzmann distributions, or quasi-stationary, non-equilibrium states. We further analyze the case in which the two oscillator frequencies are unequal and show how the application of the same model leads to a non-thermal steady state. The calculations are exact and the results are obtained through an iterative process, without using perturbation theory. In the second part of this dissertation, we examine the response of a plane wave incident on a at surface of a left-handed material, a medium characterized by simultaneously negative electric permittivity and magnetic permeability . We do this by solving Maxwell's equations explicitly. In the literature up to date, it has been assumed that negative refractive materials are necessarily frequency dispersive. We propose an alternative to this assumption by suggesting that the requirement of positive energy density can be relaxed, and discuss the implications of such a proposal. More speci cally, we show that once negative energy solutions are accepted, the requirement for frequency dispersion is no longer needed. We further argue that, for the purposes of discussing left-handed materials, the use of group velocity as the physically signi cant quantity is misleading, and suggest that any discussion involving it should be carefully reconsidered. / text

Constrained negative stiffness elements in volume concentrations (1% to 2%) embedded within viscoelastic materials have been shown to provide greater energy absorption than conventional materials [Lakes et al., Nature (London) 410, 565–567 (2001)]. This class of composite materials, called meta-materials, could be utilized in a variety of applications including noise reduction, anechoic coatings and transducer backings. The mechanism underlying the meta-material's behavior relies on the ability of the negative stiffness element to locally deform the viscoelastic material, dissipating energy in the process. The work presented here focuses specifically on the design of the negative stiffness elements, which take the form of buckled beams. By constraining the beam in an unstable, S-shaped configuration, the strain energy density of the beam will be at a maximum and the beam will accordingly display negative stiffness. To date, physical realization of these structures has been limited due to geometries that are difficult to construct and refine with conventional manufacturing materials and methods. By utilizing the geometric freedoms allowed by the Selective Laser Sintering (SLS) machines, these structures can be built and tuned for specific dynamic properties. The objective of this research was to investigate the dynamic behavior of SLS-constructed meso-scale negative stiffness elements with the future intention of miniaturizing the elements to create highly absorptive meta-materials. This objective was accomplished first through the development and analysis of a mathematical model of the buckled beam system. A characterization of the Nylon 11 material was performed to obtain the material properties for the parts that were created using SLS. Applying the mathematical model and material properties, a tuned meso-scale negative stiffness structure was fabricated. Transmissibility tests of the meso-scale structure revealed that the constrained negative stiffness system was able to achieve overall higher damping and vibration isolation than an unconstrained system. Quasistatic behavior of the system indicated that these elements would be ideal for implementation within meta-materials. Based on the results of the meso-scale system, a method to test a representative volume element for a negative stiffness meta-material was developed for future completion. / text

Previous research has suggested that individuals differ in their accuracy of perceptions of the social environment, and some research suggests that powerful individuals in particular tend to be lazy, disinterested observers of the social world. A handful of field studies and lab experiments linking power with individuals’ perceptions of others’ social networks have generally supported this view. However, recent theory addressing the psychological consequences of power for the power-holder claim that in certain circumstances and for some kinds of social information, power is linked to increased accuracy of social information. This dissertation tests this idea by drawing on social network theory and the situated focus theory of power. I examine the relationship between individuals’ formal power and their perceptual accuracy of social network relationships. I propose that individuals’ perceptual accuracy is affected by 1) their formal power in the organization 2) the type of relationship being perceived (expressive/instrumental, positive/negative), and 3) the dependence relationship with the target of perception (whether the perceiver is dependent on the perceived to get their work done). Predictions were tested using cognitive social network data collected from a call center within a division of a large corporation in the US. Results showed that formal power was linked to increased accuracy for some relationship content (particularly negative expressive relationships), and managers tend to be more accurate when perceiving their own incoming relationships than non-managers.

<p>This study explores older adolescents’ positive and negative beliefs about illicit drug use from a preventive perspective. By positive beliefs is meant positive expectancies and benefit perceptions. By negative beliefs is meant negative expectancies and risk perceptions. The choice of studying beliefs originates from the assumption that there is much to gain for prevention in considering the target audience’s starting point. An appraisal of the extent to which positive and negative beliefs are held suggests the margins for change.</p><p>The data used for the study derive from a survey conducted among a sample of third-year students in upper secondary school in the greater Stockholm area (n=2104). Overall, findings demonstrate that high negative beliefs are held and that positive beliefs to some extent are held. While this being the general trend, marked differences emerge between individuals who have used illicit drugs and individuals who have not. By and large, experienced individuals rate the negative sides as lower and the positive sides as higher than the other group. Substantial differences are found among lifetime users of illicit drugs as well. Those who have used illicit drugs more frequently during the last 12 months differ in particular from those who have refrained during this period. The differences are dramatic in some cases. In addition, consistent differences are documented between the sexes. Males are found to hold lower negative beliefs and higher positive beliefs across most measures employed. Few systematic relationships are found between other variables and outcomes.</p><p>Plausible explanations for the findings are discussed theoretically and potential implications for drug prevention are highlighted. A saturation hypothesis is introduced in order to accentuate that the overall room for change in negative beliefs probably is limited. Conversely, the fact that positive beliefs are held to a certain degree suggests a belief domain with change potential.</p>