Publications by authors named "M R Porreca"

Purpose: Research role-emerging placements (RREPs) have been integrated into placement offerings in Canadian physiotherapy programmes. The purpose of the present study is to describe the experiences and impacts of RREPs completed by graduates of Canadian physiotherapy programmes.

Methods: Participants were recruited by purposive sampling and completed semi-structured interviews to explore their RREP experiences.

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Large magnitude earthquakes produce complex surface deformations, which are typically mapped by field geologists within the months following the mainshock. We present detailed maps of the surface deformation pattern produced by the M. Vettore Fault System during the October 2016 earthquakes in central Italy, derived from ALOS-2 SAR data, via DInSAR technique.

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Central Italy was affected by a long seismic sequence in 2016 and 2017, characterized by five main-shocks with Mw>5.0. The Mw 6.

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We present new evidence that shows magma mingling can be a key process during highly explosive eruptions. Using fractal analysis of the size distribution of trachybasaltic fragments found on the inner walls of bubbles in trachytic pumices, we show that the more mafic component underwent fracturing during quenching against the trachyte. We propose a new mechanism for how this magmatic interaction at depth triggered rapid heterogeneous bubble nucleation and growth and could have enhanced eruption explosivity.

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Article Synopsis
  • The study aimed to evaluate how effective hysteroscopy is at diagnosing endometrial hyperplasia in women with irregular bleeding.
  • From 1993 to 1995, 980 women underwent hysteroscopy, which involved examining the uterus and taking biopsies if abnormalities were seen.
  • The results showed that hysteroscopy had a high sensitivity (98%) and specificity (95%), with 99% of cases accurately ruling out endometrial hyperplasia, making it a reliable method for diagnosis and management.
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