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Showing 1 - 4 of 4 matches in All Departments
The second volume of Frontiers in European Radiology covers two very promising techniques in diagnostic radiology, namely digital radiography and nuclear mag netic resonance imaging. Leading experts in both fields from Europe and the Unit ed States were invited to give a critical overview; digital fluoroscopy is reported on mainly by American scientists since this technique has been developed primarily in the United States, while the results of nuclear magnetic resonance imaging are pre sented by British groups currently at the forefront of research in this field. The pa pers reflect the state of the art at mid-1981, when the contributors gathered for the yearly symposium on Current Topics in Diagnostic Radiology in Berne, Switzer land. Nuclear magnetic resonance imaging, also known as spin imaging or zeugmato graphy, has produced striking progress within the past few years - even within the past few months - as described in three papers of this volume. The images generally reflect the distribution of mobile protons contained within water and fats, and pro vide remarkable discrimination between different tissues. Malignant tissue might be identified with this technique, and a wide range of disorders associated with water concentration, diffusion, and flow would be amenable to study; the measurement of blood flow could be particularly interesting."
1m Rahmen einer zusammeruassenden Darstellung fiir das Handbuch der inneren Medizin (lnfektions-Band) hatten zwei von uns die Brucellose des Men- schen bearbeitet. Dabei ergaben sich einige sehr interessante Forschungsaufgaben, von denen eine durch enge Zusammenarbeit der Medizinischen Universitatsklinik sowie des Veterinar-Bakteriologischen Universitats-lnstitutes in Ziirich sehr weit vorwarts getrieben werden konnte und zu bedeutsamen Ergebnissen in der Diagnostik fiihrte. Wir meinen: die Frage der inkompletten Antikorper bei der Brucellose und ihre Erkennung durch den Blocking-Test und durch den von uns verwendeten modifizierten "Brucella-Ooombs( -Antiglobulin) -Test" . Ermutigt einerseits durch diese gliickliche Zusammenarbeit von Human- medizin und Veterinarmedizin, verpflichtet andererseits durch den Charakter der Brucellose als Anthropo-Zoonose, entschlossen wir uns zur Herausgabe des vor- liegenden Buches als erweiterte, unseren eigenen neuen Ergebnissen Rechnung tragende Darstellung mit EinschlufJ einer umfassenden Bearbeitung der Brucellose der Tiere durch einen Vertreter der Veterinarmedizin, zumal bis heute in der deutschsprachigen und auch anderssprachigen Literatur ein derartiges Gemein- schaftswerk uber die Brucellose nicht bestand. Epidemiologisch interessierte die Frage besonders, in welchem AusmaBe die Konsumentenmischmilch einer groBen Stadt Brucellen enthalt. Mehrjahrige sero- bakteriologische Kontrolluntersuchungen der Milch der Stadt Ziirich zeigten, daB die Euterbrucellose der Kuhe im Kanton Ziirich 30fach hOher ist als die heute bei uns selten gewordene Eutertuberkulose. Die Brucellosesanierung der Rinderbestande -zum Schutze der Mischmilchverbraucher wird zu einer dringenden Notwendigkeit. Die wissenschaftlichen Unterlagen hierzu solI unter anderem das vorliegende Buch liefern.
Tropical cyclone intensity techniques developed by Dvorak have thus far been regarded by tropical meteorologists as the best identification and forecast schemes available using satellite imagery. However, in recent years, several ideologies have arisen which discuss alternative means of determining typhoon rapid intensification or weakening in the Pacific. These theories include examining channel outflow patterns, potential vorticity superposition and anomalies, tropical upper tropospheric trough interactions, environmental influences, and upper tropospheric flow transitions. It is now possible to data mine these atmospheric parameters thought partly responsible for typhoon rapid intensification and weakening to validate their usefulness in the forecast process. Using the latest data mining software tools, this study used components of NOGAPS analyses along with selected atmospheric and climatological predictors in classification analyses to create conditional forecast decision trees. The results of the classification model show an approximate R2 of 0.68 with percent error misclassifications of 13.5% for rapidly weakening typhoon events and 21.8% for rapidly intensifying typhoon events. In addition, a merged set of suggested forecast splitting rules was developed. By using the three most accurate predictors from both intensifying and weakening storms, the results validate the notion that multiple parameters are responsible for rapid changes in typhoon development.
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