A new class of biobased composites with tailorable mechanical properties made natural fibers, polylactic acid, and ferulic acid derivatives (FAD) is studied. FAD was used to develop elastomeric like improved elongation at break highly reversible deformation upon elongation. Composites were prepared using raw enzymatically treated hemp fibers. The fibers defibrillated due the enzymatic treatment...

REVERSE LEFT ATRIAL REMODELING ASSESSMENT AFTER PAROXYSMAL ATRIAL FIBRILLATION ABLATION: OUR FIRST EXPERIENCE (Abstract) We aimed to assess reverse left atrial (LA) remodeling at 6 months after ablation of paroxysmal atrial fibrillation (AF), and to identify the most relevant parameter of reverse LA remodeling. Material and methods: Left atrial size was assessed by echocardiography: antero-post...

The Rayleigh-Taylor (RT) instability with material ablation through the unstable interface is the key physics that determines success or failure of inertial fusion energy (IFE) generation, as the RT instability potentially quenches ignition and burn by disintegrating the IFE target. We present two suppression schemes of the RT growth without significant degradation of the target density. The fi...

The cy-naphthol (Molisch) reaction for sugars has been neglected as a possible basis for a quantitative method. As a ring test, the only form in which it is ever described, it is very crude. The violet colors produced at the surface of contact of concentrated sulfuric acid and a sugar solution containing cr-naphthol are often obscured by charring. The lack of control of the concentration of sug...

In laser material removal using a continuous wave or long-pulsed laser, the primary material removal mechanism is melting with molten metal often ejected by an assist oxygen jet. Interactions between heat transfer, oxygen diffusion and gas dynamics have been studied. In laser machining using a Q-switched solid-state laser with pulse width in the order of nanosecond, the primary material removal...

In laser material removal using a continuous wave or long-pulsed laser, the primary material removal mechanism melts with molten metal often ejected by an assisting oxygen jet. Interactions between heat transfer, oxygen diffusion, and gas dynamics have been studied. In laser machining using a Q-switched solid state laser with pulse width on the order of nanoseconds, the primary material removal...

Supraglacial deposits are known for their influence on glacier ablation. The magnitude of this influence depends on the thickness and the type of the deposited material. The effects of thin layers of atmospheric black carbon and of thick moraine debris have been intensively studied. Studies related to regional-scale deposits of volcanic tephra with thicknesses varying between millimetres and me...

INTRODUCTION Left atrial catheter ablation is useful as symptomatic treatment in selected patients with atrial fibrillation (AF). Evaluation requires measurement of arrhythmia-related symptoms. Many of the published protocols have drawbacks and have been used in AF only, with no possible comparison to other ablations that compete for the same resources. U22 is a published protocol that quantifi...

Gold-tip electrodes. Radiofrequency (RF) catheter ablation is widely used to induce focal myocardial necrosis using the effect of resistive heating through high-frequency current delivery. It is current standard to limit the target tissue-electrode interface temperature to a maximum of 60-70 degrees C to avoid char formation. Gold (Au) exhibits a thermal conductivity of nearly four times greate...

background: the rationale was to develop an ablation approach to destroy regions of tumor resistant to radiation and thus reduce the time required for whole tumor ablation, while improving overall tumor control after radiotherapy. materials and methods: the system is composed of a micro positron emission tomography (mpet), 7t magnetic resonance imaging (mri), and a customized mri-compatible foc...