Accurate measurements of longitudinal relaxation time constants (T1) in solid-state nuclear magnetic resonance (SSNMR) experiments are important for the study molecular-level structure and dynamics. Such often made under magic-angle spinning conditions; however, there numerous instances where they must be on stationary samples, which give rise to broad powder patterns arising from large anisotr...

Contractile properties of skeletal muscle are studied for various purposes and mainly by means of force or torque twitch responses. This study compared contractile properties estimated from isometric longitudinal and transversal vastus lateralis twitch mechanical actions using torque and tensiomyography (TMG) as assessment methods, respectively. We calculated delay, contraction, sustain, half r...

List of Papers This thesis is based on the following papers, which are referred to in the text by their Roman numerals. Abbreviations ADC Apparent diffusion coefficient AIF Arterial input function ASL Arterial spin labeling CBF Cerebral blood flow CBV Cerebral blood volume CPB Cardio pulmonary bypass DSC-MRI Dynamic susceptibility contrast MRI MRI Magnetic resonance imaging MRS Magnetic resonan...

We discuss the effect of zero-temperature attenuation, which has been recently observed in spin dynamics of spin-polarized Fermi liquids, on other Fermi-liquid processes. The transfer of" this attenuation mechanism J?om transverse spin dynamics to longitudinal processes can be caused by the magnetic dipole interaction, namely, by the direct dipole processes and the dipole coupling between the t...

A model-free theoretical framework for a phenomenological description of spinlattice relaxation by anomalous translational diffusion in inhomogeneous systems based on the fractional diffusion equation is developed. The dependence of the spinlattice relaxation time on the size of the pores in porous glass Vycor is experimentally obtained and found to agree well with our theoretical predictions. ...

Ligament viscoelasticity controls viscous dissipation of energy and thus the potential for injury or catastrophic failure. Viscoelasticity under different loading conditions is likely related to the organization and anisotropy of the tissue. The objective of this study was to quantify the strain- and frequency-dependent viscoelastic behavior of the human medial collateral ligament (MCL) in tens...