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  • 1
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    Excavations on the Palatine (1917)
    London : Periodicals Archive Online (PAO)
    The Contemporary Review. 111 (1917:Jan./June) 203 
    Details
    ISSN: 0010-7565
    Topics: General, Interdisciplinary
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:0274-1917-111-00-000028
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  • 2
    Electronic Resource
    Electronic Resource
    Trocar site tumor recurrences (1998)
    Springer
    Surgical endoscopy and other interventional techniques 12 (1998), S. 1294-1296 
    Details
    ISSN: 1432-2218
    Keywords: Key words: Laparoscopic surgery — Port site metastasis — Abdominal cancer
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: Port site metastasis following laparoscopy for cancer is reported with increasing frequency and represents one of the most important limitations of the technique. Methods: A scintigraphic model was utilized to evaluate a possible role of pneumoperitoneum in tumor cell dissemination. Labeled red blood cells (RBC) were injected at the level of the gallbladder bed during laparoscopic cholecystectomy (LC) performed for symptomatic cholecystolithiasis. LC was performed in two groups with standard CO2 pneumoperitoneum: in one group an endobag for retrieval of the specimen was utilized. In one group a gasless LC with endobag was performed. Results: Radioactivity in the area of the trocar introduction was observed in almost all the patients who underwent standard (CO2) LC but represented a rare event in patients treated with the gasless method. The utilization of a protective bag for the extraction of the surgical specimen did not modify significantly the results. Moreover all patients treated with pneumoperitoneum demonstrated a wide intraperitoneal diffusion of the tracer not observed in gasless patients. Conclusions: The results of this study confirm that pneumoperitoneum may play an important role in the evolution of port site metastasis after laparoscopy for gastrointestinal cancer.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004649900843
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    The role of cloud tracking and passive microwave techniques in the short-term prediction of flood hazard on a regional scale (1996)
    Springer
    Meccanica 31 (1996), S. 3-14 
    Details
    ISSN: 1572-9648
    Keywords: Remote sensing ; Rainfall ; Flood forecasting ; Hydrometeorology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Description / Table of Contents: Sommario Il ruolo delle tecniche di monitoraggio da sensori remoti nell'incrementare le potenzialità di previsione a breve termine del rischio di inondazione a scala regionale è analizzato nel presente lavoro attraverso l'applicazione di tecniche di identificazione ed inseguimento dei corpi nuvolosi ad alcuni casi di studio in cui le immagini satellitarie nella banda dell'infrarosso termico sono utilizzate come principale strumento di monitoraggio. In letteratura viene inoltre proposta l'utilizzazione, in applicazioni operative di previsione delle inondazioni, di sensori alle microonde passive montati su satelliti ad orbita polare: l'accuratezza di tali tecniche è tuttavia accettabile solo quando le stime di precipitazione vengono integrate su ampie scale spaziali e temporali. Mentre l'uso di tali tecniche per studi climatologici è di notevole utilità, la misura della precipitazione alle piccole scale spazio-temporali necessita ancora di un adeguato processo di validazione. Nel presente lavoro viene proposto un approccio teorico per la stima dell'affidabilità di tali stime di precipitazione alle scale tipiche della risoluzione spaziale del sensore.
    Notes: Abstract The role of remote sensing in enhancing the monitoring capabilities and the short-term prediction of the risk of flooding on a regional scale is addressed in this paper by means of the application of storm identification and cloud tracking techniques to a few case studies where cluster analysis based on infrared satellite imagery is used as the primary source of information. Polar satellite sensors, which provide passive microwave images, were also proposed in the literature for application in flood forecasting operational problems, though the accuracy of passive microwave techniques is only acceptable when rainfall estimates are integrated over quite large spatial and temporal scales. Climatological studies are well suited to make use of such data while the measure of instantaneous rainfall is still lacking of an adequate validation. A theoretical and numerical framework for the assessment of the reliability of passive microwave estimates of instantaneous rainfall within the typical resolution scales of polar satellite sensors is provided in the paper.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00444151
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  • 4
    Electronic Resource
    Electronic Resource
    Simultaneous dobutamine stress echocardiography and dobutamine scintigraphy (99mTc-MIBI-SPET) for assessment of coronary artery disease (1996)
    Springer
    The international journal of cardiovascular imaging 12 (1996), S. 185-190 
    Details
    ISSN: 1573-0743
    Keywords: dobutamine stress echocardiography ; myocardial scintigraphy ; SPET ; Sestamibi ; pharmacological stress testing ; coronary artery disease
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: Simultaneous dobutamine stress echocardiography (DSE) and99mTc-MIBI-SPET (DMS) for the evaluation of the presence and the extent of coronary artery disease (CAD) were assessed for a head to head comparison regarding the diagnostic accuracy of the two tests. Methods and Results: Forty-five consecutive patients (33 males and 12 females: 53±6.8 yr.) underwent exercise electrocardiography and simultaneous dobutamine stress echocardiography and MIBI-SPET imaging. Coronary angiography was performed in all patients (significant coronary stenosis 〉 50%). On the basis of the results of exercise electrocardiogram the pre-test probability for coronary artery disease (Diamond's algorithm) was low (45.6±12.7 %). The overall specificity, sensitivity and predictive accuracy of Echo-dobutamine stress test for diagnosis of the presence or absence of CAD were: specificity 82%, sensitivity 76%, diagnostic accuracy 80%, positive predictive value 90%, negative predictive value 40%. The overall specificity, sensitivity and predictive accuracy of MIBI-SPET-dobutamine test for diagnosis of the presence or absence of CAD were: specificity 86%, sensitivity 87%, diagnostic accuracy 84%, positive predictive value 97%, negative predictive value 54%. MIBI-SPET-dobutamine test showed a significantly higher sensitivity in comparison with ECHO-dobutamine test (P〈0.05). Conclusion: Both noninvasive methods for the detection of CAD showed a good diagnostic accuracy. Nevertheless the SPET model showed an higher sensitivity in comparison with DSE model, essentially in the presence of a lower extent of CAD and during submaximal test.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01806221
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