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The light photoresponse, the separation of photogenerated charge carriers and the specific surface area are of great importance for the development of semiconductor-based photocatalysts. We report the anchorage of small-sized ZnO nanorods with a length of ca. 38 nm at the surface of graphitic carbon nitride (gCN) sheets. The gCN loading in the ZnO/gCN composites was varied and the materials characterized by TEM, XRD, XPS, BET and UV-vis diffuse reflectance spectroscopy. The ZnO/gCN (10 %) composite exhibits a high photocatalytic activity for the degradation of dyes (Orange II, Resazurin and Reactive Black 5) under visible light irradiation of low intensity (2.5 mW/cm 2 ) and for salicylic acid under simulated sunlight irradiation (5 mW/cm 2 ). These results are supported by photoluminescence, photocurrent and electrochemical impedance spectroscopy measurements. The photocatalytic activity originates from synergistic effects in ZnO/gCN composites including a high specific surface area (60.4 m 2 /g), an enhanced visible light absorption capacity and the charge carriers separation. The ZnO/gCN photocatalyst exhibits a high stability and could be reused up to ten times with no loss of efficiency. A mechanism is proposed for the degradation of dyes using the ZnO/gCN composites.

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Subclavian hemodialysis (HD) catheter placement under fluoroscopy with perforation of the superior vena cava (SVC) is a rare complication that needs to be recognized and treated appropriately. We report the case of a 47-year-old black woman under treatment for end-stage renal disease secondary to HIV-associated nephropathy who sustained an extravascular insertion of fluoroscopy-guided subclavian catheterization for HD. Subsequent successful removal of the extravascularly placed catheter along with repair of the lacerated SVC were effected by open thoracic surgery.

Background:There is increasing evidence on the exponential use of technology-based social media in medical field that has led to a proliferation of unprofessional behaviors in digital realm. Educating, training, and changing the behaviors of healthcare professionals are essential elements to restrain the rising unprofessional incidents. Therefore, this research was designed to determine the impact of an interventional workshop on the medical and dental students in improving their professional behaviors in the digital world using the newly developed medical Education e-Professionalism (MEeP) framework.MethodsWe adopted the Theory of Planned Behavior (TPB) as a benchmark reference which explores constructs intertwined with the mission-based MEeP framework; values (whistleblowing-raising concerns), behaviors (being responsible in the digital world) and identity (reflective practice in the digital world). A multicentre 3-phased mixed-method study was conducted using a pre-workshop survey, an online interventional workshop, and a post-workshop survey. SPSS and NVivo were the tools used for the data analysis.ResultsA total of 130 students registered for workshop out of which 120 completed the pre-workshop survey, 62 joined the workshop and 59 completed the workshop and post-workshop survey. From the whistleblowing – raising concern perspective, we found that attitudes and perceived behavioral control had a significant relationship. While for responsible in digital world category, attitude and perceived behavioral control had a significant bearing on the intentions. Third, for reflective practice, attitude and subjective norms significantly enhanced the intention of participants. A multi layered thematic analysis yielded four overarching themes of attitudes, subjective norms, perceived behavioral control and intentions. Most students showed positive attitudes of being reflective, self-directed, and humane. Students realized the subjective norms had made them conscientious, self-aware and conformative. While perceived behavioural control manifested as identity and Intentions were heavily reliant on self-actualization.ConclusionOur mixed method study found that the interventional workshop using MEeP framework significantly improved attitudes, subjective norms, perceived behavioral control, and intentions. This study provides valuable evidence of MEeP framework evaluation using the theoretical underpinning of TPB by reporting positive changes in professional values, behaviors, and identities of undergraduate medical and dental students.