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Despite many economic and state reforms in South America, no comparable changes have taken place with regard to civil-military relations: Neither do the armed forces have a clearly defined mission of their own nor are they adequately democratically controlled. The article looks at the present civil-military relations from various angles and explicitly deals with examples from Argentina, Bolivia, Chile and Peru. It presents the reasons for the lack of civilian control over the military and discusses the resulting consequences for domestic and foreign politics.

In this paper, I invoke a sociolinguistic approach to complement the historical record in order to examine the use of the word utumwa itself as it has changed to reveal distinct class and gender connotations especially in northem Swahili communities. To explore utumwa is difficult. There is no consensus with regard to what the word and its derivatives mean that applies consistently, yet it is clear that there has been a meaning shift since the nineteenth century. This paper examines the construction and transformation of a non-Westem-molded form of service in Africa. Oral traditions and terminological variation will be brought to bear on an analysis of utumwa `slavery, service` as an important concept of social change in East Africa and, in particular, on the northern Kenya coast What this term, its derivatives, and other terms associated with it have come to mean to Swahili speakers and culture bearers will be seen to mirror aspects of the history of Swahili-speaking people fi-om the 1Oth-11th century to the present.

The dynamic element of Xhosa oral poetry has clearly changed and is continuing to change with changes in the Nguni society. The aim of this paper is to investigate the changes that have intruded into Xhosa praise poetry during 1990s.

Zielsetzung: Die Gültigkeit des Modells der Stadien der Veränderung von Prochaska und DiClemente für die stationäre Alkoholentwöhnungstherapie empirisch zu prüfen. Methoden: Reliabilität, Faktorstruktur und Konstruktvalidität der Veränderungsstadienskala (VSS) wurden an Alkoholpatienten querschnittlich (N = 265) und längsschnittlich (N = 108) untersucht. Ergebnisse: Die Reliabilität der VSS fiel befriedigend aus mit Ausnahme der Skala «Precontemplation», die sich auf nicht motivierte Patienten bezieht. Die faktorielle Validität war insbesondere für die Skalen «Contemplation» und «Maintenance» unzureichend. Clusteranalysen ergaben eine nicht modellkonforme Drei-Cluster-Lösung einschließlich «uninvolvierter » Patienten. VSS-Werte waren durchgängig mit der Therapiemotivation korreliert. Prädiktive Validität (Behandlungsdauer, Rückfallvorhersage) konnte nicht belegt werden. Schlussfolgerungen: Der Ansatz bestätigt seinen heuristischen Wert, kann aber noch nicht valide für praktische Entscheidungen in der Alkoholentwöhnungsbehandlung herangezogen werden. Spezifische Modelle für verschiedene Behandlungsgruppen und -settings scheinen Erfolg versprechender. / Aim: The validity of the ”Stages of Change” approach was tested in alcohol inpatient long-term treatment. Methods: Reliability, factor structure, and construct validity of the University of Rhode Island Change Assessment Scale (URICA, German version) was examined using cross-sectional (N = 265) and longitudinal data (N = 108). Results: Scale reliability proved to be satisfying, except for the precontemplation scale. Factorial validity was insufficient for the contemplation and the maintenance scale. Cluster analyses revealed a threecluster solution not in accordance with the model and included a cluster of ”uninvolved patients”. URICA-scores were correlated with therapy motivation, but predictive validity with respect to duration of treatment and prediction of relapse was not confirmed. Conclusions: The model proved to be of heuristic value but is not yet a valid basis for practical decisions. Models which are directed more specifically towards a particular treatment group or setting are expected to be more successful. / Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich.

In this paper, I invoke a sociolinguistic approach to complement the historical record in order to examine the use of the word utumwa itself as it has changed to reveal distinct class and gender connotations especially in northem Swahili communities. To explore utumwa is difficult. There is no consensus with regard to what the word and its derivatives mean that applies consistently, yet it is clear that there has been a meaning shift since the nineteenth century. This paper examines the construction and transformation of a non-Westem-molded form of service in Africa. Oral traditions and terminological variation will be brought to bear on an analysis of utumwa `slavery, service` as an important concept of social change in East Africa and, in particular, on the northern Kenya coast What this term, its derivatives, and other terms associated with it have come to mean to Swahili speakers and culture bearers will be seen to mirror aspects of the history of Swahili-speaking people fi-om the 1Oth-11th century to the present.

Wir betrachten die Detektion und Lokalisation von plötzlichen Änderungen in der Kovarianzstruktur hochdimensionaler zufälliger Daten. Diese Arbeit schlägt zwei neuartige Ansätze für dieses Problem vor. Die Vorgehensweise beinhaltet im Wesentlichen Verfahren zum Test von Hypothesen, welche ihrerseits die Wahl geeigneter kritischer Werte erfordern. Dafür werden Kalibrierungsschemata vorgeschlagen, die auf unterschiedlichen Nichtstandard-Bootstrap-Verfahren beruhen. Der eine der beiden Ansätze verwendet Techniken zum Schätzen inverser Kovarianzmatrizen und ist durch Anwendungen in der neurowissenschaftlichen Bildgebung motiviert. Eine Beschränkung dieses Ansatzes besteht in der für die Schätzung der „Precision matrix“ wesentlichen Voraussetzung ihrer schwachen Besetztheit. Diese Bedingung ist im zweiten Ansatz nicht erforderlich. Die Beschreibung beider Ansätze wird gefolgt durch ihre theoretische Untersuchung, welche unter schwachen Voraussetzungen die vorgeschlagenen Kalibrierungsschemata rechtfertigt und die Detektion von Änderungen der Kovarianzstruktur gewährleistet. Die theoretischen Resultate für den ersten Ansatz basieren auf den Eigenschaften der Verfahren zum Schätzen der Präzisionsmatrix. Wir können daher die adaptiven Schätzverfahren für die Präzisionsmatrix streng rechtfertigen. Alle Resultate beziehen sich auf eine echt hochdimensionale Situation (Dimensionalität p >> n) mit endlichem Stichprobenumfang. Die theoretischen Ergebnisse werden durch Simulationsstudien untermauert, die durch reale Daten aus den Neurowissenschaften oder dem Finanzwesen inspiriert sind. / We consider the detection and localization of an abrupt break in the covariance structure of high-dimensional random data. The study proposes two novel approaches for this problem. The approaches are essentially hypothesis testing procedures which requires a proper choice of a critical level. In that regard calibration schemes, which are in turn different non-standard bootstrap procedures, are proposed. One of the approaches relies on techniques of inverse covariance matrix estimation, which is motivated by applications in neuroimaging. A limitation of the approach is a sparsity assumption crucial for precision matrix estimation which the second approach does not rely on. The description of the approaches are followed by a formal theoretical study justifying the proposed calibration schemes under mild assumptions and providing the guaranties for the break detection. Theoretical results for the first approach rely on the guaranties for inference of precision matrix procedures. Therefore, we rigorously justify adaptive inference procedures for precision matrices. All the results are obtained in a truly high-dimensional (dimensionality p >> n) finite-sample setting. The theoretical results are supported by simulation studies, most of which are inspired by either real-world neuroimaging or financial data.

In der vorliegenden Arbeit wurden die Sedativa und Sedativa-induzierte Komplikationen bei gastroenterologischen endoskopischen Untersuchungen an der Universitätsmedizin Göttingen in den Jahren 2008-2009 retrospektiv untersucht. Es wurden 2456 endoskopi-sche Untersuchungen eingeschlossen, davon 983 Ösophagogastroduodenoskopien (ÖGD), 978 Ileokoloskopien und 495 retrograde endoskopische Cholangiopankreaticographien (ERCP). Als Datenquellen dienten die Sedierungsprotokolle und die Befundberichte. Zur Sedierung wurden standardmäßig Midazolam und Propofol verwendet, teilweise wur-de ergänzend Piritramid appliziert. Die mittleren Propofoldosierungen betrugen bei ÖGDs 58,5 mg, bei Koloskopien 78,1 mg und bei ERCPs 157,0 mg. Höhere Propofoldo-sierungen waren signifikant mit jüngerem Patientenalter, ambulanten Untersuchungen und therapeutischen Endoskopien assoziiert. Die Sicherheit der Sedierung wurde anhand der Sauerstoffsättigung und der Herzfrequenz untersucht. Insgesamt kam es in 2,8% der Untersuchungen zu einer Hypoxie (Sauerstoffsättigungsabfall unter 90%). Patienten, die eine Hypoxie erlitten, waren jeweils signifikant älter. In 7,5% der Untersuchungen veränderte sich die Herzfrequenz um mehr als 20% vom Ausgangswert. Großteils kam es zu einem Anstieg der Herzfrequenz. Bradykardien waren selten (2,4% aller endoskopischen Untersuchungen). Innerhalb der ÖGDs bestand ein signifikanter Zusammenhang zwischen dem Anstieg der Herzfrequenz und einer höheren Propofoldosis. Außerdem stieg die Herzfrequenz bei therapeutischen ÖGDs signifikant häufiger an. Zusammengefasst konnte bei gastroenterologischen endoskopischen Untersuchungen mit einem Kombinationsregime aus Midazolam und Propofol mit niedrigen Dosierungen und wenigen Komplikationen sediert werden.

Das Potential evolutionärer Veränderungen von lebensgeschichtlichen Merkmalen durch kommerzielle Fischerei fand in den vergangenen Jahren große Beachtung, wohingegen das evolutionäre Potential selektiver anglerischer Fischentnahme kaum berücksichtigt wurde. Durch intensive Beschreibung individueller Merkmale wie Verhalten, Lebensgeschichte, Morphologie und Physiologie der Fische habe ich die phänotypischen Korrelate der individuellen Angelfangbarkeit entflechtet. Anhand benthivorer und piscivorer Modellarten konnte ich so die Stärke und die Richtung anglerischer Selektion bestimmen. Zudem habe ich die Überlebenswahrscheinlichkeit und den Reproduktionserfolg dieser Fische gemessen, um das evolutionäre Potential anglerischer Fischereisterblichkeit abschätzen zu können. Ich konnte zeigen, dass die Risikofreude im Zusammenhang mit der Nahrungsaufnahme bei benthivoren Fischen dem stärksten Selektionsdruck ausgesetzt ist, während bei piscivoren Arten Aggression die bestimmende Eigenschaft war. Zudem waren Risikofreude und Wachstum positiv korreliert. Die intrinsische Fraßaktivität- und Geschwindigkeit erklärte, warum risikofreudige Fische selbst in Gruppen die höchste Hakwahrscheinlichkeit aufwiesen. Diese besonders leicht fangbaren Individuen wurden zudem mit höherer Wahrscheinlichkeit von Räubern in Teichen und in einem 25 ha großen Natursee gefressen, sodass anglerisch induzierte und natürliche Selektion bei juvenilen Fischen in die gleiche Richtung wiesen. Bei adulten, nestbewachenden Fischen konnte ich zudem zeigen, dass Eigenschaften, die zu einer erhöhten Fangbarkeit führen, auch den Laicherfolg steigern, sodass anglerische Selektion negative Auswirkungen auf den Reproduktionserfolg haben kann. Folglich kann bei hohem Fischereidruck ein anglerisch-induziertes Schüchternheitssyndrom entstehen, wodurch die Fangraten von der Fischbestandsdichte entkoppelt werden. Meine Ergebnisse deuten auf eine hohe Schutzwürdigkeit individueller Verhaltensdiversität hin. / The potential for fishing-induced evolution has been intensively discussed in recent years, but most studies have focused on life-history traits that directly or indirectly determine body size in the context of commercial fisheries. Much less is known about potential evolutionary changes in the context of passive angling fisheries. Using comprehensive phenotypic descriptions covering several behavioral, life-history, morphological, and physiological traits, I disentangled the phenotypic correlates of individual vulnerability to angling gear. Using both, benthivorous and piscivorous model species I identified the strength and direction of selection. I then compared survival and reproductive fitness of vulnerable and invulnerable individuals to predict the evolutionary potential of angling-induced selection. My research showed that boldness in the context of foraging is the most important trait under selection in passive fisheries targeting benthivorous species whereas aggression determines selection in piscivorous species. In addition, growth and boldness were positively correlated. Intrinsically high foraging activity- and speed likely explained why explicitly bold fish were caught more often. These highly vulnerable individuals also faced higher natural mortality at the juvenile stage in ponds and within a 25 ha natural lake. Thus, angling-induced selection and natural selection point into the same direction at the juvenile stage. However, using adult, nest-guarding fish, I also showed that angling-induced selection can severely impact reproductive fitness when behavioral patterns that determine fitness also affect vulnerability to angling gear. As a consequence, an exploitation-induced timidity syndrome can be assumed in highly exploited fish stocks leading to increasing shyness and reduced vulnerability of individual fish. My findings call for a promotion of behavioral diversity within natural fish populations.

This research set out to explore how a group of nine educators from a Catholic Church school in Malta, who have attended the Let Me Learn professional Learning process (LMLpLp), experienced personal and professional transformation. This study investigates those factors influencing participants in their transformative learning journey. It also explores the dynamics of transformative learning and whether individual transformation affects the school’s transformative learning experience. More specifically this study set out to explore how teachers who participated in the Let Me Learn professional Learning process have experienced transformative learning. This study takes a qualitative phenomenological approach. It seeks to identify phenomena of personal and professional transformative learning through the perceptions of the educators participating in this study. Through the use of the semi-structured interview it seeks to gather ‘deep’ data. This data represents the voices of these educators in narrative, thus emphasising the importance of the personal perspective and interpretation. This allowed this research to understand the subjective experience, motivation and actions of the participants. The Literature review informs the questions asked during the interview. The interview was used as a tool for gathering information regarding values, attitudes and beliefs of participants. Each interview was transcribed, translated (when response was given in Maltese) and categorised according to Mezirow’s ten stages. Excerpts from each stage were further processed to generate themes. The themes were later streamlined and an acceptable interpretive framework was created. Each interview excerpt was then analysed through the framework. Once all interviews were coded, detailed narratives were written. These narratives are meant to help the reader reflect on the process of transformative learning. It underscores those factors highlighted by the participants, which helped bring about both personal and professional transformative learning. This research has identified that individual constructs are strongly determined by an individual’s personal learning characteristics. Awareness of these personal learning characteristics (self-knowledge) helped educators assess their practice and understand how their personal characteristics were determining their approach to teaching and affecting their interpersonal relationships with students and colleagues. This research showed that transformative learning is a mutually interdependent experience. Individual transformation amounts to, and is influenced by, the collective transformation. This study highlighted the role of the school community in the pursuit of personal transformation. Yet another important finding of this research is the importance of a shared language of possibility. Through a shared language, a learning community can create a dialogic environment through which intentions, beliefs and interventions can be shared among the professional community. This research accentuates the importance of a shared language as a means of articulating a change in perspective. The study identified three main agents of change. The Let Me Learn team, as promoters and experts of this particular learning process; the teachers, who internalised the process and applied it to their practice; and the school’s senior management team, who internalised the Process, positioned it into the larger vision of the school and created a conducive environment through which the whole school community was empowered to take responsibility to bring about change in practice. A number of implications emerge from this study that could inform policy on teacher professional learning. A major implication concerns the importance of a shared language – a language that reflects the shared values and ideological position of the community. Such language frames the learning process, makes learning visible for teachers to be able to respond effectively with strategies that respect each learner’s learning preference and makes learning visible to the learner himself. Another implication from this study arises from the finding that the transformative learning process of any individual educator and effectively of the whole school community, goes beyond the effectiveness and limitations of any one professional development programme. True and deep-seated transformative learning comes from within the individual educator. This statement has serious repercussions on any professional development programme that aims to aid participants in their quest to transform their practice. This study also emphasised the importance that any professional development needs to be seated in the local experience and needs of the school community. Any attempts at developing comprehensive, nation-wide projects with pre-packaged approaches, are doomed to fail. What this research has shown is that for effective professional development, the identified outcomes need to correspond to the local needs of the school, rather than the national guidelines, detached from the realities of the particular school. Finally, this study accentuated the importance of incorporating mentoring support in any professional development proposal. Delivery of information and skills without follow-up tend to lead to superficial application. Transformative learning presupposes a period of shared reflection on practice and collegial mediation of ideas through contact between teachers and their leaders and on-the-job support from their professional development mentors.