High-resolution (200 x 200 x 1,500 microm3) imaging was performed to derive quantitative cerebral blood flow (CBF) and apparent diffusion coefficient (ADC) maps in stroke rats (permanent occlusion) every 30 minutes up to 3 hours after occlusion onset, followed by histology at 24 hours. An improved automated iterative-self-organizing-data-analysis-algorithm (ISODATA) was developed to dynamically...

Introduction: The liver fibrosis is caused by extracellular accumulation of cluster, glycos amino glycans and proteoglycans, which this extracellular accumulation may limit the penetration and molecular movement of water in the tissue, so the Diffusion weighted imaging(DWI) technique is due to the sensitivity to the movement and release of water molecules Can show this restrict...

rhabdomyosarcoma is a common primary childhood malignancy that rarely metastasizes to the breast. we report a patient with a primary sinonasal rhabdomyosarcoma metastasizing to the breast, with no distant spread. we describe the imaging appearance of rhabdomyosarcoma on magnetic resonance imaging (mri), particularly on diffusion-weighted imaging (dwi) and apparent diffusion coefficient (adc) se...

background: gliomas are the most common primary neoplasms of the central nervous system. relative cerebral blood volume (rcbv) could estimate high-grade gliomas computed with dynamic susceptibility contrast mr imaging which it is artificially lowered by contrast extravasation through a disrupted blood-brain barrier. objectives: our intent was to clarify the usefulness of diffusion-weighted magn...

With the ever-growing demands for sampling rate, conversion resolution, as well lower energy consumption, memristor-based neuromorphic analog-to-digital converters (MN-ADC) becomes one of most potential approaches to break bottleneck traditional ADCs. However, online trainable MN-ADCs are not designed be easily integrated into 1T1R crossbar array, meanwhile suffering from device non-idealities,...

Using a set of oscillator strengths and excited-state dipole moments near full configuration interaction (FCI) quality determined for small compounds, we benchmark the performances several single-reference wave function methods (CC2, CCSD, CC3, CCSDT, ADC(2), ADC(3/2)) time-dependent density-functional theory (TD-DFT) with various functionals (B3LYP, PBE0, M06-2X, CAM-B3LYP, $\omega$B97X-D). We...

Traditional ADCs (Analog-to-Digital Converters) acquire samples at regular intervals TS at a sample rate fS=1/TS and needs to adhere to the Nyquist sampling theorem, i.e., fS>2 × fB, where fB is the signal’s bandwidth [1]. Due to the periodic nature of traditional ADCs, they are sometimes referred to as synchronous ADCs [2,3]. Synchronous ADCs are characterized by a periodicity in time and equi...

IMPORTANCE Alzheimer disease (AD) is a neurodegenerative disorder with no effective therapies. In 1984, the National Institute on Aging created the first 5 AD centers (ADCs) in an effort to coordinate research efforts into the pathology and treatment of the disease. Since that time, the ADC program has expanded to include 27 centers in major medical schools throughout the United States. A major...