0000000000394393

AUTHOR

Sanna S.

showing 2 related works from this author

Appendectomy during the COVID-19 pandemic in Italy: a multicenter ambispective cohort study by the Italian Society of Endoscopic Surgery and new tech…

2021

AbstractMajor surgical societies advised using non-operative management of appendicitis and suggested against laparoscopy during the COVID-19 pandemic. The hypothesis is that a significant reduction in the number of emergent appendectomies was observed during the pandemic, restricted to complex cases. The study aimed to analyse emergent surgical appendectomies during pandemic on a national basis and compare it to the same period of the previous year. This is a multicentre, retrospective, observational study investigating the outcomes of patients undergoing emergent appendectomy in March–April 2019 vs March–April 2020. The primary outcome was the number of appendectomies performed, classifie…

medicine.medical_specialtyCOVID-19 PandemicCoronavirus disease 2019 (COVID-19)Endoscopic surgeryNOAppendectomy; Appendicitis; COVID-19 Pandemic; Machine learningCohort Studies03 medical and health sciences0302 clinical medicinePostoperative ComplicationsRetrospective StudiePandemicMachine learningmedicineHumansAppendectomyAppendicitiLaparoscopyPandemicsRetrospective Studiesmedicine.diagnostic_testPandemicbusiness.industryCOVID-19 Pandemic Appendicitis Appendicectomy Machine learningSARS-CoV-2COVID-19Length of Staymedicine.diseaseAppendicitisAppendicitisSettore MED/18SurgeryItaly030220 oncology & carcinogenesisAppendectomy; appendicitis; COVID-19 pandemic; machine learning; appendectomy; cohort studies; humans; Italy; length of stay; pandemics; postoperative complications; retrospective studies; SARS-CoV-2; appendicitis; COVID-19; laparoscopy030211 gastroenterology & hepatologySurgeryObservational studyOriginal ArticleLaparoscopyPostoperative ComplicationAppendicectomyCohort StudiebusinessComplicationCohort studyHuman
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NMR and $\mu^{+}$SR detection of unconventional spin dynamics in Er(trensal) and Dy(trensal) molecular magnets

2019

Measurements of proton nuclear magnetic resonance (H1NMR) spectra and relaxation and of muon spin relaxation (μ+SR) have been performed as a function of temperature and external magnetic field on two isostructural lanthanide complexes, Er(trensal) and Dy(trensal) [where H3trensal=2,2′,2′′-tris-(salicylideneimino)triethylamine], featuring crystallographically imposed trigonal symmetry. Both the nuclear 1/T1 and muon λ longitudinal relaxation rates (LRRs) exhibit a peak for temperatures T < 30 K, associated to the slowing down of the spin dynamics, and the width of the NMR absorption spectra starts to increase significantly at T ∼50 K, a temperature sizably higher than the one of the LRR p…

nanomagnetism molecular magnets muon spectroscopy nuclear magnetic resonanceCondensed Matter - Materials ScienceCondensed Matter - Mesoscale and Nanoscale Physics
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