Ökologische Regeln und Erfahrungen von August Thienemann

AUGUST THIENEMANN (1882-1960), Leiter der Plöner Hydrobiologischen Anstalt, später Max-Planck-Institut, hatte seine Arbeiten darauf ausgerichtet, Gesetzmäßigkeiten zu finden, die das Zusammenleben von Organismen regeln. Die Grundlagen dieser Arbeiten waren "die Großexperimente der freien Natur", wobei er nicht verzichtete auf Kontrollversuche im Laboratorium. Jahre-, sogar jahrzehntelange Beobachtungen und Versuche im Freiland waren keine Seltenheit. Vieles wurde von ihm unter verschiedenen Milieu-Bedingungen nachgeprüft, wie in Lappland und in den Tropen. Nachfolgende Notizen gehen auf jahrelangen engen Kontakt zurück und beinhalten manches, was A. THIENEMANN nicht zusammenhängend publizierte

Das Oberoligozän von Pohlkotte bei Osnabrück und seine Mikrofauna

Aus einer verlassenen Mergelgrube am Rubbenbrucher See westlich von Osnabrück werden 61 Foraminiferen-, 10 Bryozoen- und 22 Ostrakoden-Arten namhaft gemacht. Diese Funde, zusammen mit den Resten anderer Organismen, ergeben als Biotop ein ufernahes Litoral des Oberoligozän-Meeres, vergleichbar mit den klassischen Vorkommen von Astrup und Bünde

Friedrich Hamm zum Gedenken : 12.4.1891 - 4.7.1972

Dr. phil. nat. FRIEDRICH HAMM wurde in Osnabrück, Krahnstraße 1, als Sohn des Sanitätsrates Dr. med. et Dr. phil. HERMANN HAMM und seiner Frau MARIA BRINKMANN-TO BROXEN am 12. April 1891 - einem Sonntag - geboren. Er überlebte seine 5 Geschwister, die alle vor dem Erreichen des 1. Lebensjahres starben

Matthias Brinkmann (31.3.1879 - 21.9.1969) : eine Würdigung

Diese Einleitung zu der Biographie in dem 1970 erschienenen Sonderheft zum "Journal für Ornithologie", Bd. 111, der Deutschen Ornithologischen Gesellschaft, Berlin, umreißt klar die Persönlichkeit von MATIHIAS BRINKMANN, der uns 1969 im Alter von 90 Jahren verlassen hat. Er veröffentlichte 26 Bücher und selbständige Schriften, 669 Beiträge in Zeitschriften und Jahrbüchern und ungezählte Zeitungsartikel. Es werden darin von ihm die verschiedensten Gebiete behandelt, angefangen von der Pädagogik, Psychologie und Didaktik über Zoologie, Botanik, Geographie, Klimatologie und Naturschutz bis zu Wanderführern und Themen der Orts-, Heimat- und Volkskunde

Wilhelm Haack, der Pionier der Osnabrücker Geologie

Die 100. Wiederkehr des Geburtstages (8. Juli 1882) von WILHELM HAACK ist der Anlaß, in dem Freundeskreise des ihm besonders nahe stehenden Osnabrücker Naturwissenschaftlichen Vereins seines Lebenswerkes und seines erschütternden Endes zu gedenken

Das Alter der Sinterkalke vom Solbad Laer i.T.W.

Aus 4 Profilen durch den Laerer Sinterkalk wurden 33 Proben pollenanalytisch untersucht. Zwei Zähltabellen geben für jede einzelne dieser Proben den Gehalt an Pollen und Sporen. Zwei Diagramme stellen die Ergebnisse dieser qualitativen und quantitativen Analysen graphisch dar. Neben den Pollenkörnern der gebräuchlichen 11 Baumarten wurden 24 verschiedene Nichtbaumpollen-Gruppen ausgewertet. Als ältester Zeitabschnitt ließ sich die mindestens 10000 Jahre alte sog. "Jüngste Dryaszeit" feststellen, gekennzeichnet durch eine subarktische Tundra. Die darauf folgenden Zeitabschnitte Präboreal, Boreal, Atlantikum, Subboreal und Subatlantikum konnten in einem oder mehreren der Profile gefaßt werden. In günstig gelagerten Fällen wurden darüber hinaus Beziehungen angedeutet, die zwischen der Bildung dieses Sinterkalklagers und der Besiedlung durch den Menschen bestehen

“Blackboxing Whiteness”: A study of the networked home in middle-class South Africa

This paper examines the home as networked and relational. These arrangements of spaceand place were investigated through a digital ethnography and critical discourse analysis ofdomestically focused posts by 50 Facebook users. This data was supplemented by interviews,and in-situ observations drawn from the broader sample. Facebook has opened up the privatespace of the home, allowing domestic space, place, and practice to gain visibility, which, whenanalysed in conjunction with Actor-Network Theory (ANT), illustrates the networked and relationalquality of the home. The home, and the relationships between actants, reflects discoursesand hierarchy. Women remain tightly bound to the home, and to postfeminist discourses ofdomesticity and domestopia. This paper reveals that whiteness, and in particular madamhood,is blackboxed within middle-class homes. Domestic workers employed by these households,on the other hand, were largely absent from such narratives and conversations, and weremarginalised within networks

Make yourself at home: networked domestic space, place and narrative in middle class South African everyday life

Domestic space and place, as well as how we conceptualise the home, are shifting in response to changes in digital and SNS technologies, and our relationships with such technologies. The home is not only the building in which we live, but a networked assemblage of material and digitally mediated space and place. This study examines predominantly white middle class arrangements of domestic space and place in South Africa, which provides insight into a relatively unexplored aspect of digital culture: the performance of domesticity via SNS, particularly Facebook. Furthermore gendered and racialised power dynamics and privilege in everyday life were investigated through a digital ethnography and critical discourse analysis of posts by 50 Facebook users. This data was supplemented by interviews and in-situ observations of five couples drawn from the broader sample. In combination, these methods revealed how space, place, and domestic responsibilities are secured through narrative practice. Through this study I show how Facebook has emerged as a collaborative platform where storytelling practices are influenced by the site architecture and algorithm. Facebook has opened up the private space of the home allowing domestic space, place, and practice to steadily gain visibility. This visibility, analysed in conjunction with Actor-Network Theory, revealed that homes, and narratives about the homes, are networked and dependent on relationships between actants. The home, and the relationships that stabilise it, are also reflective of discourses and power relations. Human actors negotiated territory and network roles, and these negotiations reveal power and hierarchy. Women remain more tightly bound to the home because of cultural and historical gendered discourses, and as a result the white women participants in this study continue to create place and ascribe space in digitally mediated and material versions of their homes. Furthermore, the resurgence of middle class postfeminist accounts of domesticity have promoted domestic idealism and many women have migrated back to the home spurred on by popular media, and economic privilege that has allowed them to forego paid employment. This study also shows that white, middle class women participants were offered choices to construct their own postfeminist narratives of domesticity. On the other hand, the black women employed as domestic workers by these middle class couples, were largely absent from such narratives and conversations. Findings further suggest that domestic space and place remained the domain of white women participants, and that white men were able to renegotiate their domestic responsibilities because they remained distant from domestic narratives and conversations, where they were largely associated with domestic inadequacy

Perioperative detection of circulating tumour cells in patients with lung cancer

© 2017 Chudasama et al. Lung cancer is a leading cause of mortality and despite surgical resection a proportion of patients may develop metastatic spread. The detection of circulating tumour cells (CTCs) may allow for improved prediction of metastatic spread and survival. The current study evaluates the efficacy of the ScreenCell® filtration device, to capture, isolate and propagate CTCs in patients with primary lung cancer. Prior to assessment of CTCs, the present study detected cancer cells in a proof-of-principle- experiment using A549 human lung carcinoma cells as a model. Ten patients (five males and five females) with pathologically diagnosed primary non-small cell lung cancer undergoing surgical resection, had their blood tested for CTCs. Samples were taken from a peripheral vessel at the baseline, from the pulmonary vein draining the lobe containing the tumour immediately prior to division, a further central sample was taken following completion of the resection, and a final peripheral sample was taken three days post‑resection. A significant increase in CTCs was observed from baseline levels following lung manipulation. No association was able to be made between increased levels of circulating tumour cells and survival or the development of metastatic deposits. Manipulation of the lung during surgical resection for non-small cell lung carcinoma results in a temporarily increased level of CTCs; however, no clinical impact for this increase was observed. Overall, the study suggests the ScreenCell® device has the potential to be used as a CTC isolation tool, following further work, adaptations and improvements to the technology and validation of results