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Fluoropolymers in Membrane Applications
Bertasa, A. M.,Besana, G.,Ghielmi, A.,Arcella, V. 한국막학회 2007 멤브레인 Vol.17 No.2
Performances of fluoropolymers related to membranes manufacturing for different purposes are reviewed in the present article. In particular the main physical, mechanical and chemical properties of PVDF, ECTFE and PFSA ionomers are described in their specific applications. The excellent chemical resistance and suitable electrochemical properties make fluoropolymers an especially good choice in membranes manufacturing.
이의석,박동석,장현석,김현준,Besana,임호경 대한통합치과학회 2017 대한통합치과학회지 Vol.6 No.2
Lemierre’s syndrome is caused by preexisting oropharyngeal infection and characterized by internal jugular vein (IJV) thrombophlebitis. Frequently, this syndrome involves metastatic infection in areas such as the peritoneum, muscles, and spleen. The most common etiologic organism is Fusobacterium necrophorum. In this case, a masticatory space abscess that originated from a tooth caused the IJV thrombophlebitis. The patient had preexisting hypertension, diabetes mellitus, hyperlipidemia, and Parkinson’s disease. Blood culture revealed Streptococcus sanguinis, and the patient received antibiotics that were highly sensitive to mentioned bacterium; additionally, an anticoagulant was used. With the widespread use of antibiotics, Lemierre’s syndrome has become uncommon, and related mortality rates have noticeably decreased. This has led the public to forget about the disease, but it can still be potentially fatal without early diagnosis and appropriate antibiotic treatment.
History of Migraine and Volume of Brain Infarcts: The Italian Project on Stroke at Young Age (IPSYS)
Valeria De Giuli,Michele Besana,Mario Grassi,Marialuisa Zedde,Andrea Zini,Corrado Lodigiani,Simona Marcheselli,Anna Cavallini,Giuseppe Micieli,Maurizia Rasura,Maria Luisa DeLodovici,Giampaolo Tomeller 대한뇌졸중학회 2019 Journal of stroke Vol.21 No.3
Background and Purpose Migraine has been shown to increase cerebral excitability, promote rapid infarct expansion into tissue with perfusion deficits, and result in larger infarcts in animal models of focal cerebral ischemia. Whether these effects occur in humans has never been properly investigated. Methods In a series of consecutive patients with acute ischemic stroke, enrolled in the setting of the Italian Project on Stroke at Young Age, we assessed acute as well as chronic infarct volumes by volumetric magnetic resonance imaging, and compared these among different subgroups identified by migraine status. Results A cohort of 591 patients (male, 53.8%; mean age, 37.5±6.4 years) qualified for the analysis. Migraineurs had larger acute infarcts than non-migraineurs (median, 5.9 cm3 [interquartile range (IQR), 1.4 to 15.5] vs. 2.6 cm3 [IQR, 0.8 to 10.1], P<0.001), and the largest volumes were observed in patients with migraine with aura (median, 9.0 cm3 [IQR, 3.4 to 16.6]). In a linear regression model, migraine was an independent predictor of increased log (acute infarct volumes) (median ratio [MR], 1.64; 95% confidence interval [CI], 1.22 to 2.20), an effect that was more prominent for migraine with aura (MR, 2.92; 95% CI, 1.88 to 4.54). Conclusions These findings reinforce the experimental observation of larger acute cerebral infarcts in migraineurs, extend animal data to human disease, and support the hypothesis of increased vulnerability to ischemic brain injury in people suffering migraine.
Fluoropolymers in Membrane Applications
A. M. Bertasa,,G. Besana,A. Ghielmi,V. Arcella 한국막학회 2007 멤브레인 Vol.17 No.2
Performances of fluoropolymers related to membranes manufacturing for different purposes are reviewed in the present article. In particular the main physical, mechanical and chemical properties of PVDF, ECTFE and PFSA ionomers are described in their specific applications. The excellent chemical resistance and suitable electrochemical properties make fluoropolymers an especially good choice in membranes manufacturing.