Results 111 to 120 of about 5,053,828 (347)
Generalization of Optimal Control Saturation Pulse Design for Robust and High CEST Contrast
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose Optimal control (OC) chemical exchange saturation transfer (CEST) pulse design for singular pulses that can be used flexibly and robustly with high saturation at different duty cycles, saturation durations, and magnetic field strengths. Theory and Methods An OC framework was developed to design a single‐pulse shape that can be flexibly
Clemens Stilianu +3 more
wiley +1 more source
El concepto de “inmanencia práctica” en Deleuze
Ideas y Valores, 2017 El artículo presenta la “inmanencia práctica” como clave de la ética que G. Deleuze elabora a partir de B. Spinoza y F. Nietzsche. La noción involucra tres tesis que manifiestan la reivindicación incondicional de la inmanencia y la crítica a toda ...
Marcelo Sebastián Antonelli-Marangi
doaj +1 more source
Physiology of echolocation in bats [PDF]
, 2009 Svi šišmiši skupine Microchiroptera i samo jedan rod skupine Megachiroptera evolucijom su razvili složeni sustav eholokacije koji im služi pri hvatanju plijena, pri snalaženju u prostoru te za komunikaciju i navigaciju.
Zrnčić, Vida
core +2 more sources
On the reliability of measuring differential rotation of spotted stars
, 2013 Cross-correlation of consecutive Doppler images is one of the most common techniques used to detect surface differential rotation (hereafter DR) on spotted stars.
Bartus, János +4 more
core +1 more source
Temperature Mapping During MR‐Guided Cryoablation Using a FLORET UTE Sequence
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose To implement a three‐dimensional FLORET‐UTE sequence for rapid MR thermometry during cryoablation and to validate voxel‐wise temperature maps against fiber‐optic probes in ex vivo bovine liver. Methods A FLORET‐UTE trajectory (TE 50 μs, 1.6 mm isotropic, 18 s/volume) was executed on a 3 T scanner while dry‐ice cryoablation was applied ...
Moritz Gutt +6 more
wiley +1 more source
Qualidade de vida no trabalho: controle e escondimento do mal-estar do trabalhador [PDF]
, 2009 José Newton Garcia de Araújo
openalex +1 more source
The Effect of Voxel Volume and Voxel Shape on Cardiac Diffusion Tensor Imaging Metrics
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose Cardiac diffusion tensor imaging (cDTI) is signal‐to‐noise ratio (SNR)‐limited due to diffusion signal attenuation, long echo times from gradient moment nulling, and moderate myocardial T2$$ {}_2 $$. Increasing voxel volume improves SNR but reduces spatial sensitivity and introduces physiological bias.
Ariel J. Hannum +3 more
wiley +1 more source
Platón desde Ortega: La interpretación tragicómica de la vida
Differenz, 2017 Al final del Banquete Sócrates afirma, misteriosamente, que el poeta de la tragedia y el de la comedia son el mismo. Para Ortega, en esta frase se encuentra la simiente de la novela moderna, y la primera fue el Quijote de Cervantes.
David Antonio Yáñez Baptista
doaj +1 more source
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose This work proposes a method for the simultaneous estimation of the exchange‐dependent relaxation rate Rex$$ {R}_{ex} $$ and the longitudinal relaxation time T1$$ {T}_1 $$ from a single acquisition. Methods A novel acquisition scheme was developed that combines CEST saturation with an inversion pulse and a Look‐Locker readout to capture
Markus Huemer +6 more
wiley +1 more source