0000000001180247
AUTHOR
F. Cacciatore
Experimental investigation of two-side heat transfer in spacer-filled channels
Abstract In Membrane Distillation (MD), spacers support the membranes and promote mixing, thus reducing temperature polarization. Their efficient design requires a knowledge of the distribution of the local heat transfer coefficient h and of its dependence on Reynolds number, spacer geometry and flow-spacer relative orientation. In previous work, we applied Thermochromic Liquid Crystals (TLC) and digital image processing to the measurement of h distributions for different spacer configurations; data were used to validate CFD simulations and select turbulence models. For constructive reasons, the test section allowed only one-side heat transfer, while in most MD configurations (e.g. spiral-w…
SINDROME DA ENCEFALOPATIA POSTERIORE REVERSIBILE: TEMIBILE COMPLICANZA IN CORSO DI MAS DA AIG SISTEMICA
Background: La sindrome da encefalopatia posteriore reversibile (PRES) è un disordine secondario a diverse condizioni cliniche, caratterizzato da cefalea acuta o subacuta, nausea, vertigini, alterazioni della coscienza, convulsioni, disturbi visivi transitori, emorragia retinica ed edema del nervo ottico. Alla RMN si riscontra edema vasogenico nell'emisfero cerebrale posteriore e talvolta aree necrotiche. Riportiamo il caso clinico di una paziente con sindrome da attivazione macrofagica (MAS) secondaria ad AIG sistemica che ha sviluppato una PRES. Caso Clinico: Una adolescente di 11 anni giunge alla nostra osservazione per comparsa di febbre persistente da 10 gg. Durante la degenza è stata …
Multiple hormonal and metabolic deficiency syndrome in chronic heart failure: rationale, design, and demographic characteristics of the T.O.S.CA. Registry.
Recent evidence supports the concept that progression of chronic heart failure (CHF) depends upon an imbalance of catabolic forces over the anabolic drive. In this regard, multiple hormonal deficiency syndrome (MHDS) significantly has impacts upon CHF progression, and is associated with a worse clinical status and increased mortality. The T.O.S.CA. (Trattamento Ormonale nello Scompenso CArdiaco; Hormone Therapy in Heart Failure) Registry (clinicaltrial.gov = NCT02335801) tests the hypothesis that anabolic deficiencies reduce survival in a large population of mild-to-moderate CHF patients. The T.O.S.CA. Registry is a prospective multicenter observational study coordinated by “Federico II” Un…
Associations between cardiac arrhythmia, incident disability in activities of daily living and physical performance: The ilsa study
Background Cardiac arrhythmias are common conditions in older people. Unfortunately, there is limited literature on associations between cardiac arrhythmias and physical performance or disability. We therefore aimed to prospectively investigate associations between cardiac arrhythmias and changes in disability and physical performance during 8 years of follow-up, using data from the Italian Longitudinal Study on Aging (ILSA). Methods Cardiac arrhythmias diagnosis was posed through a screening phase, confirmed by a physician. The onset of disability in activities of daily living (ADL) and the changes in several physical performance tests during follow-up were considered as outcomes. Fully-ad…