A5040332761- Numerical methods for differential equations
- Sparse and Compressive Sensing Techniques
- Advanced Vision and Imaging
- Advanced Numerical Methods in Computational Mathematics
- Electromagnetic Simulation and Numerical Methods
- Video Surveillance and Tracking Methods
- Photoacoustic and Ultrasonic Imaging
- Image and Signal Denoising Methods
- Computer Graphics and Visualization Techniques
- Advanced Image Processing Techniques
- Differential Equations and Numerical Methods
- Image Enhancement Techniques
- Parallel Computing and Optimization Techniques
- Interconnection Networks and Systems
- Mesenchymal stem cell research
- Nonlinear Waves and Solitons
- Anomaly Detection Techniques and Applications
- Nonlinear Photonic Systems
- Pluripotent Stem Cells Research
- Advanced Data Storage Technologies
- Evacuation and Crowd Dynamics
- Radiology practices and education
- Advanced MRI Techniques and Applications
- Nonlinear Dynamics and Pattern Formation
- Hematopoietic Stem Cell Transplantation
Boston Medical Center
2021-2025
Boston University
2023-2025
University Medical Center
2024
Jet Propulsion Laboratory
2024
University of Central Florida
2009-2021
University of Colorado Anschutz Medical Campus
2017-2021
National Institutes of Health
2020
Jackson Foundation
2020
Henry M. Jackson Foundation
2020
Uniformed Services University of the Health Sciences
2020
A novel method for crowd flow modeling and anomaly detection is proposed both coherent incoherent scenes. The novelty revealed in three aspects. First, it a unique utilization of particle trajectories crowded scenes, which we propose new efficient representative arbitrarily complicated flows. Second, chaotic dynamics are introduced into the context to characterize motions by regulating set invariant features, reliably computed used detecting anomalies. Third, probabilistic framework...
A method is proposed for identifying five crowd behaviors (bottlenecks, fountainheads, lanes, arches, and blocking) in visual scenes. In the algorithm, a scene overlaid by grid of particles initializing dynamical system defined optical flow. Time integration provides particle trajectories that represent motion scene; these are used to locate regions interest scene. Linear approximation behavior classification through Jacobian matrix; eigenvalues determine dynamic stability points flow each...
iWarp is a system architecture for high speed signal, image and scientific computing. The heart of an the component: single chip processor that requires only addition memory chips to form complete building block, called cell. Each component contains both powerful computation engine (20 MFLOPS) throughput (320 MBytes/sec), low latency (100-150 ns) communication interfacing with other cells. Because its strong capabilities, versatile block various performance parallel systems. These systems...
iWarp is a parallel architecture developed jointly by Carnegie Mellon University and Intel Corporation. The communication system supports two widely used interprocessor styles: memory systolic . This paper describes the rationale, architecture, implementation for system. sending or receiving processor of message can perform either communication. In communication, entire buffered in local before it transmitted after received. Therefore begins terminates at memory. For conventional passing...
Research Article5 March 2013Open Access Reactive astrocytes promote the metastatic growth of breast cancer stem-like cells by activating Notch signalling in brain Fei Xing Department Medical Microbiology, Immunology and Cell Biology, Southern Illinois University School Medicine, Springfield, IL, USA Cancer Institute, Mississippi Center, Jackson, MS, Search for more papers this author Aya Kobayashi Hiroshi Okuda Misako Watabe Sudha K. Pai Puspa R. Pandey Shigeru Hirota Internal Iwate...
A description is given of the iWarp architecture and how it supports various communication models system configurations. The heart an component: a single-chip processor that requires only addition memory chips to form complete building block, called cell. Each component contains both powerful computation engine runs at 20 MFLOPS (million floating-point operations per second) high-throughput (320 Mb/s), low-latency (100-150-ns) for interfacing with other cells. Because their strong...
Sparsity-based approaches have been popular in many applications image processing and imaging. Compressed sensing exploits the sparsity of images a transform domain or dictionary to improve recovery from undersampled measurements. In context inverse problems dynamic imaging, recent research has demonstrated promise low-rank techniques. For example, patches underlying data are modeled as sparse an adaptive domain, resulting estimation measurements is called dictionary-blind compressed...
The β-tropomyosin gene encodes a component of the sarcomeric thin filament. Rod-shaped dimers tropomyosin regulate actin-myosin interactions and mutations have been associated with nemaline myopathy, cap Escobar syndrome distal arthrogryposis types 1A 2B. In this study, we expand allelic spectrum β-tropomyosin-related myopathies through identification novel mutation in two clinical contexts not previously β-tropomyosin. first phenotype is core-rod uncovered by whole exome sequencing family...
Background/Objectives: Hypermobile Ehlers-Danlos Syndrome (hEDS) is a complex connective tissue disorder with multi-systemic manifestations that significantly impact quality of life. This case report investigates the clinical course and molecular mechanisms advanced hEDS through an in-depth study post-mortem findings. Methods: The history 24-year-old patient was analyzed, focusing on progressive complications across multiple systems. Post-mortem examination genetic analysis were performed to...
People in high-density crowds appear to move with the flow of crowd, like particles a liquid.
The iWarp communication system supports two widely used interprocessor styles: memory and systolic communication. A description is given of the rationale, architecture, implementation for system. Memory flexible well suited general computing, whereas efficient speed-critical applications. design made possible by important innovations in communication: (1) program access to (2) logical channels. former allows programs data as they are transmitted redirect portions messages different...
Background Previous radiofrequency work has not rigidly controlled energy application to the articular cartilage, giving uncertain results published date. Hypothesis At minimal settings, probes cause cell death in measurable areas when applied human cartilage. Study Design Controlled laboratory study. Methods Simulating operating room conditions, 5 commercially available were attached a customized jig standardize contact pressure of each probe tip 2.0 g. Keeping all variables same, placed on...
Multisymplectic methods have recently been proposed as a generalization of symplectic ODE to the case Hamiltonian PDEs. Their excellent long time behavior for variety wave equations has demonstrated in number numerical studies. A theoretical investigation and justification multisymplectic is still largely missing. In this paper, we study linear PDEs their discretization by means dispersion relations. It found that sense Bridges Reich Phys. Lett. A, 284 (2001), pp. 184-193] J. Comput. Phys.,...
Exponential Runge--Kutta (ERK) and partitioned exponential (PERK) methods are developed for solving initial value problems with vector fields that can be split into conservative linear nonconservative parts. The focus is on linearly damped ordinary differential equations possess certain invariants when the damping coefficient zero, but, in presence of constant or time-dependent damping, satisfy equations. Similar to way preserve quadratic symplecticity Hamiltonian systems, ERK PERK exactly...
This paper presents a new robust PCA method for foreground-background separation on freely moving camera video with possible dense and sparse corruptions. Our proposed registers the frames of corrupted then encodes varying perspective arising from motion as missing data in global model. formulation allows our algorithm to produce panoramic background component that automatically stitches together partially overlapping reconstruct full field view. We model registered sum low-rank captures...
Traditional concepts indicate that stem cells give rise to progenitor in a hierarchical system. We studied murine engraftable (ESCs) and progenitors vitro found ESC exist reversible continuum, rather then hierarchy. B6.SJL BALB/c marrow were serially cultured with thrombopoietin (TPO), FLT-3 ligand (FLT-3L), steel factor through cell cycle. Progenitors (high-proliferative potential colony-forming (HPP-CFC) unit culture (CFU-c)) capacity was determined. The cycle status of purified...
The utility of oral 5-aminolevulinic acid (5-ALA)/protoporphyrin fluorescence for the resection high-grade gliomas is well documented. This drug has received regulatory approval in Europe but awaits United States.To identify appropriate dose and toxicity or harms 5-ALA used enhanced intraoperative visualization malignant brain tumors, reported from a single medical center States.Prior to craniotomy presumed glioma, individuals were given as part rapid dose-escalation scheme. At least 3...
iWarp is a parallel architecture developed jointly by Carnegie Mellon University and Intel Corporation. The communication system supports two widely used interprocessor styles: memory systolic communication. This paper describes the rationale, architecture, implementation for system.
We study the robust PCA problem of reliably recovering a low-rank signal matrix from signal-plus-noise-plus-outliers matrix. analytically characterize extent to which singular vectors can be degraded by outliers and discuss why recently proposed method for that exploits outlier sparsity improve estimation will produce suboptimal estimates in presence noise. Next, we propose new iterative algorithm utilizes an optimal, data-driven estimator (OptShrink). Finally, show approach yields superior...