Decorrelation theory has recently been proposed in order to address the security of block ciphers and other cryptographic primitives over a nite domain. We show here how to extend it to in nite domains, which can be used in the Message Authentication Code (MAC) case. In 1994, Bellare, Kilian and Rogaway proved that CBC-MAC is secure when the input length is xed. This has been extended by Petran...

BACKGROUND Delirium is an acute change in cognition and concentration that complicates the postoperative course. Patients who suffer delirium after surgery have an increased risk of persistent cognitive impairment, functional decline, and death. Postoperative delirium is also associated with an increased length of hospital stay and higher costs. With the goal of preventing delirium in postopera...

K e y w o r d s Bacterial endocarditis, Echocardiography, Heart, Mitral diseases, Mitral ring calcification, Sepsis A b b r e v i a t i o n s u s e d AML, anterior mitral leaflet; LA, left atrium; LV, left ventricle; MAC, mitral annular calcification; PML, posterior mitral leaflet; TEE, transesophageal echocardiography; TTE, transthoracic echocardiography; V, vegetation; IE, infective endocarditis

OBJECTIVE The angle of the C-MAC D-Blade® videolaryngoscope, which is used for difficult airway interventions, is not compatible with routinely used endotracheal tubes. METHODS A prospective randomized crossover study was performed comparing five intubation methods for use with standardized airways, including using different stylets or no stylet: Group HS, hockey-stick stylet; Group DS, D-bla...

Neural stem/progenitor cells (NSPCs) are the stem cell of the adult central nervous system (CNS). These cells are able to differentiate into the major cell types found in the CNS (neurons, oligodendrocytes, astrocytes), thus NSPCs are the mechanism by which the adult CNS could potentially regenerate after injury or disorder. Microenviromental factors are critical for guiding NSPC differentiatio...