7 research outputs found

    The spider fauna (Arachnida: Araneae) of abandoned sites in a quarry in Bad Deutsch-Altenburg (Austria: Lower Austria)

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    In einem teilweise stillgelegten Steinbruch in Bad Deutsch-Altenburg nahe Hainburg/Donau (NÖ) wurde die epigäische Spinnenfauna auf sechs Untersuchungsflächen unterschiedlichen Sukzessionsalters mittels Barberfallen in der Zeit von 27. März bis 29. Oktober 2006 untersucht. Es wurden 79 Arten mit 845 adulten Individuen aus 18 Familien gefangen. Sieben Arten kamen auf allen Untersuchungsflächen vor. 28 Arten werden in den Roten Listen Tschechiens und/oder der Slowakei in einer der Gefährdungskategorie eingestuft. Die wenig bekannte Arten Thanatus pictus L. Koch, 1881 und Xysticus embriki Kolosváry, 1935 werden genauer vorgestellt. Der Vergleich der sechs Spinnengemeinschaften des untersuchten Steinbruchs mit 16 geographisch benachbarten Spinnengemeinschaften aus dem Gebiet der Parndorfer Platte zeigt einen kontinuierlichen Sukzessionsverlauf innerhalb der Ruderalfluren von den jüngsten zur ältesten Fläche und weiter zu intakten gepflegten Trockenrasen, und über verbrachende und verbuschende Trockenrasen sowie Hecken und Gebüsch-Standorten zu natürlichenWäldern der Region.The epigeic spider fauna in a partially abandoned quarry in Bad Deutsch-Altenburg/Donau (Austria: Lower Austria) was examined. Six study sites at different stages of abandonment were sampled using pitfall traps in a period from 27 March to 29 October 2006. In total, 79 species were caught comprising 845 adult individuals from 18 families. Twenty-eight species were classified as Red list taxa according to the Red lists of the Czech Republic and/or Slovakia. The poorly-known spider species Thanatus pictus L. Koch, 1881 and Xysticus embriki Kolosváry, 1935 are presented in more detail. Comparison of the six spider assemblages in the quarry with 16 geographically adjacent spider assemblages in the area of the “Parndorfer Platte” shows a clear succession within the ruderal study sites. These begin with the most recent to the oldest site, and continue to well-managed dry grasslands, further developing to scrub grasslands and hedges, and eventually to natural forests in the region

    Evaluation and extension of dicom compatible imaging software for the implementation of an imaging system with dicom server integration

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    Abweichender Titel laut Übersetzung der Verfasserin/des VerfassersIn dieser Arbeit wurde ein Vergleich zwischen 3 bekannten Bildverabeitunsprogrammen (OPsirix, analyze, Slicer3d ) angestrebt. Für jedes der Programme wurde ein Plugin zum Multy Freuency Processing entwickelt, welches den Kontrast von Bildern nicht in einem globalen Maßstab, sondern in einem lokalen, abhängig von der größe der Bildstrukturen verändert.This works aims to make a comparison between 3 different Imaging Softwares (Osirix, Analyze, Slicer3d), commonly used in medical Imaging Contexts. For each program a Plugin for multy frequency processing was written, which is able to enhance Image contrast, not in a global, but in a local scale, depending on the size of the structures.13

    Application of BI-RADS Descriptors in Contrast-Enhanced Dual-Energy Mammography: Comparison with MRI

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    &lt;b&gt;&lt;i&gt;Background:&lt;/i&gt;&lt;/b&gt; Contrast-enhanced (CE) magnetic resonance imaging (MRI) BI-RADS descriptors are used in the evaluation of contrast-enhanced dual-energy mammography (CEDEM) images of mass lesions and are assumed to be applicable. &lt;b&gt;&lt;i&gt;Patients and Methods:&lt;/i&gt;&lt;/b&gt; Patients with suspicious mass lesions on mammography (BI-RADS 4 or 5) were included. CEDEM examinations were performed using a modified prototype unit. CE-MRI was performed using a high temporal and high spatial resolution imaging protocol. 2 blinded breast radiologists evaluated all images using criteria related to contrast enhancement intensity and morphology according to the BI-RADS lexicon (5th edition) in 2 sessions. Histopathology was used as the standard of reference. &lt;b&gt;&lt;i&gt;Results:&lt;/i&gt;&lt;/b&gt; 11 patients with 5 benign and 6 malignant index lesions were included. Enhancement characteristics were similar in the malignant cases. Enhancement of the benign lesions was moderate on CEDEM and strong on MRI. Discrepancies in the BI-RADS descriptors did not influence the final BI-RADS score. Overall, the BI-RADS assessment was almost identical in all cases. 1 malignant lesion was rated BI-RADS 4 with CEDEM and BI-RADS 5 with MRI, and 1 benign was rated BI-RADS 2 and BI-RADS 1, respectively. &lt;b&gt;&lt;i&gt;Conclusion:&lt;/i&gt;&lt;/b&gt; MRI BI-RADS descriptors of contrast-enhancing lesions can be applied for the morphologic analysis of mass lesions on CEDEM.</jats:p

    Insecta

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