The mechanisms behind CSF flow in humans are still not fully known. circulates from its primary production sites at the choroid plexus through brain ventricles to reach outer surface of subarachnoid spaces where it drains into venous bloodstream and cervical lymphatics. According a recent concept fluid transport, established rodents, also enters tissue along para-arterial routes exits paravenous again compartments. This unidirectional is mainly driven by arterial pulsation. To investigate...

CSF flux is involved in the pathophysiology of neurodegenerative diseases and cognitive impairment after traumatic brain injury, all hallmarked by accumulation cellular metabolic waste. Its effective disposal via various routes has been demonstrated animal models. In contrast, dynamics humans are still poorly understood. Using novel real-time MRI, forced inspiration identified recently as a main driving force flow human brain. Exploiting technical advances toward phase-contrast current work...

Respiration-induced pressure changes represent a powerful driving force of CSF dynamics as previously demonstrated using flow-sensitive real-time magnetic resonance imaging (MRI). The purpose the present study was to elucidate sensitivity flow along spinal canal forced thoracic versus abdominal respiration. Eighteen subjects without known illness were studied phase-contrast MRI at 3 T in aqueduct and levels C3, Th1, Th8 L3. Subjects performed protocol breathing comprising four cycles 2.5 s...

Velum movement signals generated from real-time magnetic resonance imaging videos of thirty-five German speakers were used to investigate the physiological conditions that might promote sound change involving development contrastive vowel nasality.The results suggest that, in comparison when a nasal consonant precedes voiced obstruent, velum gesture associated with preceding voiceless obstruent undergoes gestural rescaling and temporal rephasing.This further suggests diachronic nasality...

We present a method of using generalized additive mixed models (GAMMs) to analyze midsagittal vocal tract data obtained from real-time magnetic resonance imaging (rt-MRI) video speech production. Applied rt-MRI data, GAMMs allow for observation factor effects on shape throughout two key dimensions: time (vocal change over the temporal course segment) and space (location within tract). Examples this are provided collected at resolution 20 ms spatial 1.41 mm, 36 native speakers German. The...

Secure Multi-Party Computation (MPC) with small number of parties is an interesting area research, primarily due to its ability model most real-life MPC applications and the simplicity efficiency resulting protocols. In this work, we present efficient, constant-round 3-party (3PC) 4-party (4PC) protocols in honest-majority setting that achieve strong security notions fairness (corrupted receive their output only if all honest output) guaranteed delivery cannot prevent from receiving output)....

Purpose To develop and evaluate a practical phase unwrapping method for real‐time phase‐contrast flow MRI using temporal spatial continuity. Methods Real‐time of through‐plane was performed highly undersampled radial FLASH with phase‐sensitive reconstructions by regularized nonlinear inversion. Experiments involved in phantom the human aorta (10 healthy subjects) without wrapping velocity encodings 100 cm·s −1 200 . Phase each individual cardiac cycle restricted to region interest...

The Intel Security Guard Extensions (SGX) architecture enables the abstraction of enclaved execution, using which an application can protect its code and data from powerful adversaries, including system software that executes with highest processor privilege. While SGX exports ISA low-level instructions enable applications to create enclaves, task writing this has been left community.

Predictive analysis of post fault system dynamic behavior can be a vital resource for better control and reliability improvement the overall system. This article presents methods predictive Fault Induced Dynamic Voltage Recovery (FIDVR) event using faster than real-time digital replica power The proposed include use quick algorithms detection FIDVR events metrics predicting impacted by detected event. We show that, replica, in required time that transient voltage deviation index (TVDI)...

The purpose of this work was to develop an acquisition and reconstruction technique for two‐ three‐directional (2d 3d) phase‐contrast flow MRI in real time. A previous real‐time one‐directional (1d) through‐plane extended 2d 3d by introducing in‐plane sensitivity. method employs highly undersampled radial FLASH sequences with sequential acquisitions two or three flow‐encoding datasets one flow‐compensated dataset. Echo times are minimized merging the waveforms imaging gradients. For each...

We introduce a method for predicting midsagittal contours of orofacial articulators from real-time MRI data.A corpus about 26 minutes speech has been recorded French speaker at rate 55 images / s using highly undersampled radial gradient-echo with image reconstruction by nonlinear inversion.The each articulator have manually traced set 60 selectedby hierarchical clustering -to optimally represent the diversity articulations.The data serve to build -specific Principal Component Analysis (PCA)...

Echo planar imaging is an important MR technique used for different applications in both structural and functional imaging. It typically with fat suppression to avoid phase inconsistencies induced by the chemical shift of signal. pTx pulses are mitigate B1 + bias field occurring at higher fields strengths; typical do however not suppress In this work, we designed a frequency-selective water excitation pulse be 3D EPI acquisitions, enabling homogenous, high-resolution whole-brain fat-free 7T.

Technologies, such as real-time magnetic resonance (RT-MRI), can provide valuable information to evolve our understanding of the static and dynamic aspects speech by contributing determination which articulators are essential (critical) in producing specific sounds how (gestures). While a visual analysis comparison imaging data or vocal tract profiles already relevant findings, sheer amount available demands strongly profit from unsupervised data-driven approaches. Recent work, this regard,...

A substantial increase in renewable energy in-feed to the primary grid as well demand growth poses a challenge for transmission system operators (TSOs) perform maintenance activities while addressing security of supply. computationally efficient outage scheduling algorithm which is customizable terms area and time selection proposed this paper. Benders decomposition approach under different wind scenarios, spanning two-stage stochastic programming used. An accurate schedule fulfilling both...

True software-defined radio cellular base stations require extremely fast data converters, which can not currently be implemented in semiconductor technology. Superconductor niobium-based delta ADCs have shown to able perform this task. The problem of testing these devices is a severe task, as very little known about possible defects This paper shows an approach for gaining information on and illustrates how BIST solution detecting under extreme conditions.