1,384 research outputs found
Portrait of Dymphna Cusack, author [picture]
No full textCondition: Good.; Part of collection: Ion Idriess glass plate negative collection.; Title from signature on image.; Also available in an electronic version via the Internet at: http://nla.gov.au/nla.pic-vn3299415. "My love, Dymphna Cusack 1954"--signature on image
Optimizing electron backscatter diffraction of carbonate biominerals—resin type and carbon coating
No full textElectron backscatter diffraction (EBSD) is becoming a widely used technique to determine crystallographic orientation in biogenic carbonates. Despite this use, there is little information available on preparation for the analysis of biogenic carbonates. EBSD data are compared for biogenic aragonite and calcite in the common blue mussel, <i>Mytilus edulis</i>, using different types of resin and thicknesses of carbon coating. Results indicate that carbonate biomineral samples provide better EBSD results if they are embedded in resin, particularly epoxy resin. A uniform layer of carbon of 2.5 nm thickness provides sufficient conductivity for EBSD analyses of such insulators to avoid charging without masking the diffracted signal. Diffraction intensity decreases with carbon coating thickness of 5 nm or more. This study demonstrates the importance of optimizing sample preparation for EBSD analyses of insulators such as carbonate biominerals
Completed Dip. Ed. Prior to 1950 A-D: ABARCAR - AUSTIN, BADCOCK - BUTTLE, CADDY - CUSACK, DAFFEY - DYSTER
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/442598272037
Item: [2018.0034.00004] "Completed Dip. Ed. Prior to 1950 A-D: ABARCAR - AUSTIN, BADCOCK - BUTTLE, CADDY - CUSACK, DAFFEY - DYSTER
Sinking budgets and ballooning prices: Recent developments connected to military spending
No full textMilitary spending in the West generally declined after the Cold War. Given the economic pressures that many of these states confronted, they can be said to have experienced a fortuitous conjunction of lessening security demands with stable if not rising pressures to allocate more resources to social purposes. However, with declining financial resources a good part of military capital in these countries was reduced and most of what remains is growing obsolete. The excessive rise in relative prices associated with major military capital items, a rise only partially associated with an increase in real effectiveness, poses a challenge for many of these states if they are to retain their capacity to provide in some meaningful way for their own military defense. -- Nach Ende des Kalten Krieges sind allgemein in der westlichen Welt die Militärausgaben gesunken. Angesichts des wirtschaftlichen Drucks, dem sich viele dieser Länder ausgesetzt sahen, kann man sagen, dass dies Ergebnis eines zufälligen Zusammentreffens mehrerer Faktoren ist: geringere Sicherheitsanforderungen treffen auf gleich bleibende bzw. sogar zunehmende Forderungen nach alternativer Budgetverwendung, beispielsweise mehr Mittelausgaben für soziale Zwecke. Durch die verringerten Finanzmittel für die Verteidigung wurde jedoch ein großer Teil der militärischen Waffensysteme reduziert, der verbliebene Rest ist zum größten Teil veraltet. Die relativen Preise für Waffensysteme sind jedoch exzessiv gestiegen, ohne dass diese auf einem gleich großen Anstieg der tatsächlichen Effektivität der Waffensysteme beruhen. So stellt es für viele dieser Staaten eine große Herausforderung dar, wenn sie ihre Fähigkeit bewahren wollen, auf sinnvolle Weise für ihre eigene militärische Sicherheit zu sorgen.Military Spending,Weapon Systems,Military Personnel,Inflation,Conscription,East-West-Conflict
Lethal inhalation of Popper
No full text“Popper” is a drug constituted by amylnitrite or isobutylnitrite that has begun gradually to widespread since 60’s years. Nowadays it is usually sold into sexy-shops (somewhere as a room deodorizer) in little plastic bottles or imbued in cotton or other adsorbent materials. Popper is known as a recreational drug traditionally abused in male homosexuals activity because of the induction of a vigorous excitant effect associated to anal muscle relax and anesthetization.
It is most frequently assumpted by inhalation and the effects begin within few seconds and last for a very short period (from 30 seconds to 2 minutes)
Honour and recognition in the German novel of banditry ca 1800
No full textThis article performs a reading informed by Honneth’s theory of recognition of the two best-known German novels of banditry of the 1790s, Johann Heinrich Zschokke’s Abaellino der große Bandit (1794) and Christian August Vulpius’ Rinaldo Rinaldini (1799) in an effort to understand how popular literature participates in and reflects upon the discourse on honour and recognition around 1800. Its status as popular genre makes the novel of banditry (Räuberroman) a potentially interesting source on shifts in the theory and practice of honour as experienced by ordinary Europeans at the turn of the 19th century. The genre was found to relate to the honour discourse not directly, but in the manner of a heterotopia, simultaneously located outside that discourse and referentially connected to it. Taken in isolation, the novel of banditry is not an informative source on the changing role of honour and new patterns of intersubjective recognition in late 18th century Europe. Seen as part of a particular constellation of textual production and reception, however, the genre sheds light on the aporias of honour experienced by those socially marginal ‘new readers’ intent on exploiting literature in the struggle for enhanced social recognition.Peer reviewe
Deutsch-britische Kulturvermittlung in Mary Shelleys Reisebericht Rambles in Germany and Italy (1844)
No full textMary Shelly's travelogue Rambles in Germany and Italy (1844) is usually read as a travelogue of Italy and its significance as the author's political manifesto is emphasized (Moskal 2003). Indeed, Shelly deals with the Italian struggle for freedom and expresses her own political views. This was made possible not least by the genre of the travelogue, which, in its position between fact and fiction, also enabled women of the time to penetrate the otherwise male-dominated political sphere (Butler 2021).
However, Rambles is not only a political book, but also a very personal one, as critics have noted. Around 20 years after the death of her husband, Shelley travels to Italy again for the first time with her adult son and his friends (and again two years later, both trips are described in Rambles), making it an emotionally charged journey. The author also takes an in-depth look at art and life in Italy.
However, the travelogue is not only about Italy, but also, as the title suggests, about Germany and Austria. Shelley does not stay long in the latter country; it is after all one of the oppressors of the Italians striving for freedom and is therefore often mentioned critically in the text. And yet the author records her positive impressions of the Salzkammergut and Tyrol.
In 1842, Shelley took a six-week cure for her persistent headaches in (Bad) Kissingen, and part of her report is devoted to this stay and the other stops in Germany (including Frankfurt, Mainz, Berlin, Weimar and Dresden). The stay at the spa forms the middle piece of the travelogue and thus lies "within the book's trajectory to Rome" (253), as Jeanne Moskal has noted. However, Shelley's chapters on Germany not only offer insights into the world of German spas, whose descriptions, as Beth Dolan Kautz has shown, are characterized by military metaphors. The author also visits museums – in Berlin and Dresden – and reports on the works of art she has seen. She also listens to music and visits the homes of Goethe and Schiller in Weimar. She comments on all this with references to the authors' works and her own assessment of their works.
Although Shelley's primary interest (and apparently also that of her audience) is Italy – even the chapters on Germany are full of comparisons with the bel paese – an entire section of the three-part travelogue is devoted to Germany. In contrast to most analyses of The Rambles, this contribution focuses on this part and asks about Shelley's role as a cultural mediator between Germany and Britain. Both the text and the reception of the report are used for the analysis
Control of crystal polymorph in microfluidics using molluscan 28 kDa Ca2+-binding protein
No full textBiominerals produced by biological systems in physiologically relevant environments possess extraordinary properties that are often difficult to replicate under laboratory conditions. Understanding the mechanism that underlies the process of biomineralisation can lead to novel strategies in the development of advanced materials. Using microfluidics, we have demonstrated for the first time, that an extrapallial (EP) 28 kDa protein, located in the extrapallial compartment between mantle and shell of Mytilus edulis, can influence, at both micro- and nanoscopic levels, the morphology, structure and polymorph that is laid down in the shell ultrastructure. Crucially, this influence is predominantly dependent on the existence of an EP protein concentration gradient and its consecutive interaction with Ca2+ ions. Novel lemon-shaped hollow vaterite structures with a clearly defined nanogranular assembly occur only where particular EP protein and Ca2+ gradients co-exist. Computational fluid dynamics enabled the progress of the reaction to be mapped and the influence of concentration gradients across the device to be calculated. Importantly, these findings could not have been observed using conventional bulk mixing methods. Our findings not only provide direct experimental evidence of the potential influence of EP proteins in crystal formation, but also offer a new biomimetic strategy to develop functional biomaterials for applications such as encapsulation and drug delivery
Effects of ocean acidification on growth, organic tissue and protein profile of the Mediterranean bryozoan Myriapora truncata
No full textThe possible effects of ocean acidification on growth, organic tissue and protein profile in the bryozoan Myriapora truncata (Pallas, 1766) were studied in samples transplanted along a gradient of different pH conditions in an area of natural volcanic CO2 vents at Ischia Island (Tyrrhenian Sea, Italy). Living colonies from normal (mean pH 8.10), intermediate (pH 7.83) and low (pH 7.32) pH sites were investigated after intervals of 34, 57 and 87 d of exposure. M. truncata formed new and complete zooids at the normal site, whereas at the intermediate and low pH sites, neither partial nor complete zooids were produced. After 34 d at intermediate and low pH conditions, the organic cuticle which envelops the skeleton increased in thickness when compared to normal colonies, suggesting a protective role against dissolution of the high-Mg calcite skeleton. Significant changes in the protein profile and expression displayed by samples from intermediate and low pH conditions suggest that M. truncata makes an initial attempt to overcome the decrease in pH by up-regulating protein production but eventually, especially in the lowest pH condition, exhausts biochemical energy to maintain this rate of protein production, leading to eventual death
Hyperspectral cathodoluminescence imaging of modern and fossil carbonate shells
No full textOptical cathodoluminescence (CL) is commonly used to identify diagenetically altered carbonate fossils, yet such an interpretation is problematic as present-day carbonate shells may also luminesce. Hyperspectral CL imaging combines CL microscopy and CL spectroscopy to quantitatively analyze luminescence emission. Cold optical CL and hyperspectral CL imaging were carried out on four modern biominerals, a Rhynchonelliform brachiopod, a Craniid brachiopod, a bivalve, and the eggshell of the domestic fowl. A fossil Craniid brachiopod was analyzed to compare luminescence emission with that from the modern Craniid brachiopod. The beam conditions used for optical CL vary between studies, which hinders the direct comparison of CL analyses. This study assesses the effect of beam current and beam diameter on the intensity of luminescence emission. By characterizing the effect of beam conditions on different CaCO3 biominerals, comparisons can be made between CL studies. Hyperspectral CL imaging can be carried out in combination with WDS element analysis. By comparing hyperspectral CL images with element maps the causes of luminescence can to some extent be determined. The intensity of luminescence emitted from the modern biominerals differs under the same beam conditions. All four modern shells emit blue luminescence. In N. anomala, there is a correlation between Mn2+ concentration and luminescence intensity in the 620- to 630-nm wavelength band, which is apparent in the inner region of the shell. The fossil Craniid also emits blue luminescence, and texture within the shell wall is apparent; however, the luminescence emission between 620 and 630 nm that is evident in N. anomala is absent
- …
