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Search: WFRF:(Trivella M)

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1.
  • Carroll, Daire, et al. (author)
  • Non-fatal removal of ground pangolin (Smutsia temminckii Smuts, 1832) tracking devices by predators
  • 2024
  • In: African Journal of Ecology. - 0141-6707. ; 62:1
  • Journal article (peer-reviewed)abstract
    • The ground pangolin (Smutsia temminckii Smuts 1832) is vulnerable to extinction due to poaching and trafficking. Recovery of pangolins from the trade and subsequent rehabilitation and release form a core component of pangolin conservation. Post-release monitoring of rehabilitated pangolins through the attachment of very high frequency (VHF) transmitters and satellite devices is carried out to determine the efficacy of release protocols. We report on 14 confirmed and 19 potential incidents of device removal by predators during non-fatal attacks, which occurred over a 6 year period. During this time, 78 devices were deployed 109 times attached to 36 rehabilitated pangolins. These incidents should be considered during the design of future post-release monitoring protocols.
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3.
  • Rovai, Daniele, et al. (author)
  • Myocardial perfusion abnormalities by intravenous administration of the contrast agent NC100100 in an experimental model of coronary artery occlusion and reperfusion
  • 1998
  • In: Echocardiography. - : Wiley. - 0742-2822 .- 1540-8175. ; 15:8, s. 731-740
  • Journal article (peer-reviewed)abstract
    • The aim of this study was to evaluate a second-generation echo contrast agent (NC100100) for the study of myocardial perfusion. In eight anesthetized open-chest dogs, this agent was injected intravenously under baseline conditions, during acute coronary thrombosis, and after reperfusion, using both fundamental (FI) and harmonic (HI) imaging, both continuous and intermittent imaging, and both ultrasound (US) and integrated backscatter (IBS) imaging. Contrast injections did not modify the hemodynamic parameters. With all imaging modalities, myocardial contrast enhancement (MCE) was higher with intermittent than with continuous imaging (134 vs 82 gray level/pixel using FI, P = 0.02; 62 vs 32 acoustic units using US HI, P = 0.02; and 52 vs 12 dB using IBS, P = 0.05). MCE equally increased using either US or IBS imaging. The accuracy of MCE in detecting perfusion defects during coronary occlusion and myocardial reperfusion after thrombolysis was very good (sensitivity and specificity = 93% and 95% and 89% and 93%, respectively). The extent of myocardial perfusion defects by echo contrast showed a closer correlation with microspheres using HI (r = 0.82) than FI (r = 0.53). Thus, the intravenous administration of NC100100 during intermittent HI allows myocardial perfusion abnormalities to be accurately detected during acute myocardial infarction.
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