Typhula Juncea in Iowa

So far as is known, no species of Typhula has heretofore been reported from Iowa. It is of interest, therefore, to record the occurrence of a striking species of this genus. On the rainy afternoon of October 4, 1941, it was discovered fruiting in great abundance on fallen oak leaves in a wooded ravine between North Liberty and Lake Macbride. The pale yellow clubs, 10-12 cm. tall, were developing over an area a hundred feet or more in length and twenty or thirty feet in width in such profusion that in places they suggested patches of yellow grass blades

Postfeminist stylistics, work femininities and coaching: a multimodal study of a website

The aim of this paper is to examine representations of work femininities on a British website offering coaching specifically aimed at women. It builds on and contributes to studies of postfeminist representations but with a specific focus on work femininities and coaching webpages. Although studies on postfeminist representation have analysed the way young women’s, embodied and sexualised femininities are depicted across a wide variety of mainstream media, there has not been a study that focuses on the representation of work femininities on coaching websites. My approach matter because feminist authors critique popular psychology and link it to postfeminism and neoliberalism but as yet studies have focused on self-help books and magazines and not new media. Furthermore, coaching websites are an important medium for circulating postfeminist work femininities and psychological advice, produced through the digital labour of women entrepreneurs. Through my analysis of one website, influenced by feminist social semiotic multimodality literature, the paper contributes to postfeminist theory and organisation studies by explaining how ‘postfeminist stylistics’ reproduce postfeminist tropes and depictions of relational and individualised entrepreneurial femininities visually and textually (Lewis, 2014)

Automatisierte, Ontologie-basierte Sensorintegration für das Internet der Dinge

Das Internet der Dinge (IoT) bezeichnet im Allgemeinen die Vernetzung von technischen Geräten. Diese Geräte, auch intelligente Objekte genannt, enthalten dabei meist Sensoren, die Informationen über ein Objekt und dessen Umgebung bereitstellen. Derartige vernetzte Umgebungen werden als intelligente Umgebungen bezeichnet. Die „Industrie 4.0“-Initiative greift diese technologische Entwicklung auf und wendet sie auf Produktions- und Logistiksysteme an. Die vernetzten Daten ermöglichen es beispielsweise Prozesse und Workflows situationsbedingt zu adaptieren. Das DFG-Forschungsprojekt SitOPT entwickelt ein System zur Optimierung und Adaption situationsbezogener Anwendungen basierend auf Workflow-Fragmenten. Teil dieses Systems ist eine Situationserkennung. Sie leitet aus Sensorwerten Situationen ab. Um dies zu ermöglichen, müssen Sensoren in das System integriert werden. In dieser Arbeit wird ein Konzept zur automatisierten ad-hoc Sensorintegration entworfen und entwickelt. Dazu wird eine Ontologie als semantische Wissensbasis entworfen, die Objekte, Sensoren und ihre Eigenschaften semantisch verknüpft. Über einen REST-basierten Service wird die Ontologie bedient und eine Sensorintegration initiiert. Adapter fungieren als Schnittstelle zwischen Sensoren und der Situationserkennung und werden im Prozess der Sensorintegration auf das Objekt übertragen

Selected metal ions protect Bacillus subtilis biofilms from erosion

Many problems caused by bacterial biofilms can be traced back to their high resilience towards chemical perturbations and their extraordinary sturdiness towards mechanical forces. However, the molecular mechanisms that link the mechanical properties of a biofilm with the ability of bacteria to survive in different chemical environments remain enigmatic. Here, we study the erosion stability of Bacillus subtilis (B. subtilis) biofilms in the presence of different chemical environments. We find that these biofilms can utilize the absorption of certain metal ions such as Cu2+, Zn2+, Fe2+, Fe3+ and Al3+ into the biofilm matrix to avoid erosion by shear forces. Interestingly, many of these metal ions are toxic for planktonic B. subtilis bacteria. However, their toxic activity is suppressed when the ions are absorbed into the biofilm matrix. Our experiments clearly demonstrate that the biofilm matrix has to fulfill a dual function, i.e. regulating both the mechanical properties of the biofilm and providing a selective barrier towards toxic chemicals

Selected metal ions protect Bacillus subtilis biofilms from erosion

Many problems caused by bacterial biofilms can be traced back to their high resilience towards chemical perturbations and their extraordinary sturdiness towards mechanical forces. However, the molecular mechanisms that link the mechanical properties of a biofilm with the ability of bacteria to survive in different chemical environments remain enigmatic. Here, we study the erosion stability of Bacillus subtilis (B. subtilis) biofilms in the presence of different chemical environments. We find that these biofilms can utilize the absorption of certain metal ions such as Cu2+, Zn2+, Fe2+, Fe3+ and Al3+ into the biofilm matrix to avoid erosion by shear forces. Interestingly, many of these metal ions are toxic for planktonic B. subtilis bacteria. However, their toxic activity is suppressed when the ions are absorbed into the biofilm matrix. Our experiments clearly demonstrate that the biofilm matrix has to fulfill a dual function, i.e. regulating both the mechanical properties of the biofilm and providing a selective barrier towards toxic chemicals