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This page shows you the most recent publications within this specialty of the MedWorm directory.

Hierarchical Blind Interference Alignment Over Interference Networks With Finite Coherence Time
We investigate a blind interference alignment (BIA) scheme through staggered antenna switching over various interference networks (e.g., broadcast channel, interference channel, and cellular networks) with realistic channel assumptions. In existing BIA, the coherence time of channel is assumed to be long enough, but that may not always be true in realistic scenarios. Therefore, we propose a dynamic supersymbol design method which can construct a supersymbol with limited symbol extension that is determined by the coherence time of channel. It is demonstrated that the supersymbol block length can be reduced significantly by ...
Source: IEEE Transactions on Signal Processing - February 9, 2016 Category: Biomedical Engineering Source Type: research

Efficient Sequential Monte-Carlo Samplers for Bayesian Inference
In many problems, complex non-Gaussian and/or nonlinear models are required to accurately describe a physical system of interest. In such cases, Monte-Carlo algorithms are remarkably flexible and extremely powerful approaches to solve such inference problems. However, in the presence of a high-dimensional and/or multimodal posterior distribution, it is widely documented that standard Monte-Carlo techniques could lead to poor performance. In this paper, the study is focused on a Sequential Monte-Carlo (SMC) sampler framework, a more robust and efficient Monte-Carlo algorithm. Although this approach presents many advantages ...
Source: IEEE Transactions on Signal Processing - February 9, 2016 Category: Biomedical Engineering Source Type: research

Multi-Target Tracking and Occlusion Handling With Learned Variational Bayesian Clusters and a Social Force Model
This paper considers the problem of multiple human target tracking in a sequence of video data. A solution is proposed which is able to deal with the challenges of a varying number of targets, interactions, and when every target gives rise to multiple measurements. The developed novel algorithm comprises variational Bayesian clustering combined with a social force model, integrated within a particle filter with an enhanced prediction step. It performs measurement-to-target association by automatically detecting the measurement relevance. The performance of the developed algorithm is evaluated over several sequences from pu...
Source: IEEE Transactions on Signal Processing - February 9, 2016 Category: Biomedical Engineering Source Type: research

Grouping-Based Interference Alignment With IA-Cell Assignment in Multi-Cell MIMO MAC Under Limited Feedback
Interference alignment (IA) is a promising technique to efficiently mitigate interference and to enhance the capacity of a wireless communication network. This paper proposes a grouping-based interference alignment (GIA) with optimized IA-Cell assignment for the multiple cells interfering multiple-input multiple-output (MIMO) multiple access channel (MAC) network under limited feedback. This work consists of three main parts: 1) an improved version (including some new improvements) of the GIA with respect to the degrees of freedom (DoF) and optimal linear transceiver design is provided, which allows for low-complexity and ...
Source: IEEE Transactions on Signal Processing - February 9, 2016 Category: Biomedical Engineering Source Type: research

Sparse Signal Recovery Based Imaging in the Presence of Mode Conversion With Application to Non-Destructive Testing
We propose a sparse signal representation based method for imaging solid materials in the presence of mode conversion phenomenon using an array of ultrasonic transducers. Traditional imaging techniques, such as MUSIC, Capon, and delay-and-sum (DAS) beamformer, do not take into account mode conversion. Recently, the well-known Capon and MUSIC techniques have been modified such that they can be used in multimodal propagation environments. Referred to as MC-Capon and MC-MUSIC techniques, these methods yield a higher resolution and lower sidelobe levels, as compared to the DAS beamformer. Moreover, unlike the DAS beamformer, t...
Source: IEEE Transactions on Signal Processing - February 9, 2016 Category: Biomedical Engineering Source Type: research

Table of Contents
(Source: IEEE Transactions on Signal Processing)
Source: IEEE Transactions on Signal Processing - February 9, 2016 Category: Biomedical Engineering Source Type: research

Training Beam Sequence Design for Millimeter-Wave MIMO Systems: A POMDP Framework
In this paper, adaptive training beam sequence design for efficient channel estimation in large millimeter-wave (mmWave) multiple-input multiple-output (MIMO) channels is considered. By exploiting the sparsity in large mmWave MIMO channels and imposing a Markovian random walk assumption on the movement of the receiver and reflection clusters, the adaptive training beam sequence design and channel estimation problem is formulated as a partially observable Markov decision process (POMDP) problem that finds non-zero bins in a two-dimensional grid. Under the proposed POMDP framework, optimal and suboptimal adaptive training be...
Source: IEEE Transactions on Signal Processing - February 9, 2016 Category: Biomedical Engineering Source Type: research

Interactive Scalar Quantization for Distributed Resource Allocation
In many resource allocation problems, a centralized controller needs to award some resource to a user selected from a collection of distributed users with the goal of maximizing the utility the user would receive from the resource. This can be modeled as the controller computing an extremum of the distributed users’ utilities. The overhead rate necessary to enable the controller to reproduce the users’ local state can be prohibitively high. An approach to reduce this overhead is interactive communication wherein rate savings are achieved by tolerating an increase in delay. In this paper, we consider the desig...
Source: IEEE Transactions on Signal Processing - February 9, 2016 Category: Biomedical Engineering Source Type: research

Off-the-Grid Line Spectrum Denoising and Estimation With Multiple Measurement Vectors
Compressed Sensing suggests that the required number of samples for reconstructing a signal can be greatly reduced if it is sparse in a known discrete basis, yet many real-world signals are sparse in a continuous dictionary. One example is the spectrally-sparse signal, which is composed of a small number of spectral atoms with arbitrary frequencies on the unit interval. In this paper we study the problem of line spectrum denoising and estimation with an ensemble of spectrally-sparse signals composed of the same set of continuous-valued frequencies from their partial and noisy observations. Two approaches are developed base...
Source: IEEE Transactions on Signal Processing - February 9, 2016 Category: Biomedical Engineering Source Type: research

Multiple Target Tracking in Urban Environments
We consider the problem of tracking a dynamically-varying and unknown number of targets in urban environments. Our proposed approach exploits available multipath measurements and directly incorporates them into a modified probability hypothesis density (PHD) filter to dynamically estimate both the number of targets and their corresponding parameters. The modified PHD incorporates a multipath-to-measurement association (MMA) scheme that adaptively estimates the best matched measurement return paths available at each time step. It takes into consideration that each target can generate multiple measurements due to multiple mu...
Source: IEEE Transactions on Signal Processing - February 9, 2016 Category: Biomedical Engineering Source Type: research

Convergence Analysis of Two Loss Functions in Soft-Max Regression
While the convergence rate of any optimization algorithm can be increased by selecting a larger stepsize parameter, this also magnifies the parameter estimation variance. This research introduces an analytical methodology for comparing the estimation variance when optimizing Soft-Max models using two different loss functions (Cross Entropy and Mean Square Error). This method can be used to adjust the stepsize parameters of algorithms with different loss functions so that they attain equal estimation variances after converging; this provides a fair starting point for a comparison of the convergence rates of the algorithms. ...
Source: IEEE Transactions on Signal Processing - February 9, 2016 Category: Biomedical Engineering Source Type: research

Development and verification of a mathematical model to quantify the joint spaces of the elbow.
Authors: Glatzeder K, Müller R, Hollinger B, Potthast W Abstract The purpose of the study was a development and verification of a model to quantify elbow joint spaces focusing on posterolateral rotatory instability. The model was tested for feasibility and applied to open and arthroscopic surgeries. A mathematical kinematic model was created, consisting of two segments representing the humerus and radius and ulna. Model calculations of the joint opening were compared with direct measurements on a mechanical model with attached marker arrays, and compared with values determined by a digital sliding caliper in order...
Source: Biomedizinische Technik/Biomedical Engineering - February 5, 2016 Category: Biomedical Engineering Tags: Biomed Tech (Berl) Source Type: research

Closed-Form FIR Filter Design Based on Convolution Window Spectrum Interpolation
This paper proposes a closed-form linear phase FIR filter design concurrently possessing high efficiency and excellent transfer characteristic. This design is derived from conventional frequency sampling method through replacing its frequency-domain interpolation function with the Fourier spectrum of a convolution window. Meanwhile, this derivation inherently contains a mechanism of synthesizing all possible sub filters into one better FIR filter, which also plays the role of optimizing the transfer characteristic in nature. The above synthesizing process is equivalent to three simple steps, from which a closed-form formul...
Source: IEEE Transactions on Signal Processing - February 5, 2016 Category: Biomedical Engineering Source Type: research

Correcting Wavelet Codes Using Interleaving and Trapping
A rate k/n wavelet code, a form of real convolutional code, that encodes k numbers into n numerical code symbols using the present and past input numbers, may be used to transport numerical data with redundancy factor $({rm n}-{rm k})$. Such codes offer detection and correction within roundoff tolerances. Wavelet codes can be processed using two different algebraic representations, vector-matrix or polyphase polynomial. When an interleaver intersperses the code symbols, any burst of errors within the interelaver's frame length, appears in only one component of the polyphase format. A special extended polyphase parit...
Source: IEEE Transactions on Signal Processing - February 5, 2016 Category: Biomedical Engineering Source Type: research

Penetration of an artificial arterial thromboembolism in a live animal using an intravascular therapeutic microrobot system
A number of recent studies have investigated the biomedical applications of various wireless microrobots [1–2]. In addition to moving to a target lesion, wireless locomotive microrobots can deliver therapeutic drugs for specific diseases. Thus, they hold great potential as therapeutic devices for blood vessel diseases, such as thrombi and occlusions, and for other diseases, such as cancer and inflammation [3]. A significant force is needed to enable stable locomotion of a microrobot in a pulsating blood flow. (Source: Medical Engineering and Physics)
Source: Medical Engineering and Physics - February 5, 2016 Category: Biomedical Engineering Authors: Semi Jeong, Hyunchul Choi, Gwangjun Go, Cheong Lee, Kyung Seob Lim, Doo Sun Sim, Myung Ho Jeong, Seong Young Ko, Jong-Oh Park, Sukho Park Source Type: research

Les apports de l’ISO 9001 pour un service biomédical en établissement de santé
Publication date: Available online 5 February 2016 Source:IRBM News Author(s): B. Schaaff (Source: IRBM News)
Source: IRBM News - February 5, 2016 Category: Biomedical Engineering Source Type: research

A Shearing-Stretching Device That Can Apply Physiological Fluid Shear Stress and Cyclic Stretch Concurrently to Endothelial Cells
Endothelial cell (EC) morphology and functions can be highly impacted by the mechanical stresses that the cells experience in vivo. In most areas in the vasculature, ECs are continuously exposed to unsteady blood flow-induced shear stress and vasodilation-contraction-induced tensile stress/strain simultaneously. Investigations on how ECs respond to combined shear stress and tensile strain will help us to better understand how an altered mechanical environment affects EC mechanotransduction, dysfunction, and associated cardiovascular disease development. In the present study, a programmable shearing and stretching device th...
Source: Journal of Biomechanical Engineering - February 5, 2016 Category: Biomedical Engineering Source Type: research

Macroscopic Modeling of In Vivo Drug Transport in Electroporated Tissue
This study develops a macroscopic model of mass transport in electroporated biological tissue in order to predict the cellular drug uptake. The change in the macroscopic mass transport coefficient is related to the increase in electrical conductivity resulting from the applied electric field. Additionally, the model considers the influences of both irreversible electroporation (IRE) and the transient resealing of the cell membrane associated with reversible electroporation. Two case studies are conducted to illustrate the applicability of this model by comparing transport associated with two electrode arrangements: side-by...
Source: Journal of Biomechanical Engineering - February 5, 2016 Category: Biomedical Engineering Source Type: research

Improving the performance of an aerobic membrane bioreactor (MBR) treating pharmaceutical wastewater with powdered activated carbon (PAC) addition.
In this study, the effects of organic loading rate (OLR) and the addition of powdered activated carbon (PAC) on the performance and membrane fouling of MBR were conducted to treat real pharmaceutical process wastewater. Over 145 days of operation, the MBR system was operated at OLRs ranging from 1 to 2 kg COD m(-3) day(-1) without sludge wasting. The addition of PAC provided an improvement in the flux, despite an increase in the OLR:PAC ratio. The results demonstrated that the hybrid PAC-MBR system maintained a reduced amount of membrane fouling and steadily increased the removal performance of etodolac. PAC addition r...
Source: Bioprocess and Biosystems Engineering - February 5, 2016 Category: Biomedical Engineering Authors: Kaya Y, Bacaksiz AM, Golebatmaz U, Vergili I, Gönder ZB, Yilmaz G Tags: Bioprocess Biosyst Eng Source Type: research

Identification of Dominant Excitation Patterns and Sources of Atrial Fibrillation by Causality Analysis.
This study presents a new methodology based on causality analysis that allows identifying the hierarchically dominant areas driving AF. Identification of dominant propagation patterns was achieved by computing causal relations between intracardiac multi-electrode catheter recordings of four paroxysmal AF patients during sinus rhythm, pacing and AF. In addition, realistic mathematical models of the atria during AF were used to validate the methodology both in the presence and absence of dominant frequency (DF) gradients. During electrical pacing, sources of propagation patterns detected by causality analysis were consistent...
Source: Annals of Biomedical Engineering - February 5, 2016 Category: Biomedical Engineering Authors: Rodrigo M, Climent AM, Liberos A, Calvo D, Fernández-Avilés F, Berenfeld O, Atienza F, Guillem MS Tags: Ann Biomed Eng Source Type: research

Hand synergies: Integration of robotics and neuroscience for understanding the control of biological and artificial hands
Publication date: Available online 3 February 2016 Source:Physics of Life Reviews Author(s): Marco Santello, Matteo Bianchi, Marco Gabiccini, Emiliano Ricciardi, Gionata Salvietti, Domenico Prattichizzo, Marc Ernst, Alessandro Moscatelli, Henrik Jorntell, Astrid M.L. Kappers, Kostas Kyriakopoulos, Alin Abu Schaeffer, Claudio Castellini, Antonio Bicchi The term ‘synergy’ – from the Greek synergia – means ‘working together’. The concept of multiple elements working together towards a common goal has been extensively used in neuroscience to develop theoretical frameworks, experimental approaches, a...
Source: Physics of Life Reviews - February 4, 2016 Category: Physics Source Type: research

An Insight into the Adoption of Accountable-eHealth Systems – An Empirical Research Model Based on the Australian Context
Publication date: Available online 4 February 2016 Source:IRBM Author(s): R. Gajanayake, R. Iannella, T. Sahama This paper provides a first look at the acceptance of Accountable-eHealth (AeH) systems—a new genre of eHealth systems designed to manage information privacy concerns that hinder the proliferation of eHealth. The underlying concept of AeH systems is appropriate use of information through after-the-fact accountability for intentional misuse of information by healthcare professionals. An online questionnaire survey was utilised for data collection from three educational institutions in Queensland, Australia....
Source: IRBM - February 4, 2016 Category: Biomedical Engineering Source Type: research

Special Issue on Medical Image Analysis for Computer Aided Diagnosis
Publication date: February 2016 Source:IRBM, Volume 37, Issue 1 Author(s): K. Djemal, S. Ruan, C. Toumoulin (Source: IRBM)
Source: IRBM - February 4, 2016 Category: Biomedical Engineering Source Type: research

Ex situ product recovery for enhanced butanol production by Clostridium beijerinckii.
In this study, Clostridium beijerinckii NCIMB 8052 was cultured in flasks without shaking and in situ recovery fermentation was performed by using an adsorbent L493. The amounts of acetone, butanol, and ethanol (ABE) increased by 34.4 % in the presence of the adsorbent. In contrast, cell growth and production of organic acids and ABE were retarded in the 7-L batch fermentations with in situ butanol recovery. Cell damage occurred in the fermentor upon agitation in the presence of the adsorbent, unlike in static flask cultures with in situ recovery. Ex situ recovery fermentation using circulation of fermentation broth after...
Source: Bioprocess and Biosystems Engineering - February 4, 2016 Category: Biomedical Engineering Authors: Lee SH, Eom MH, Choi JD, Kim S, Kim J, Shin YA, Kim KH Tags: Bioprocess Biosyst Eng Source Type: research

The influence of a polymer damper on swing-through crutch gait biomechanics
Although the forearm crutch has existed for nearly 5000 years [1], its design and technology has advanced slowly compared to other forms of assistive mobility devices. Many assistive walking devices have historically been characterized as a ‘rigid support with an underarm crosspiece’ in reference to the early axillary crutch [2]. Problems associated with this primitive crutch design were identified as early as the 1900s and have included compression neuropathy of the radial nerve, brachial plexus, and axillary artery [3–5]. (Source: Medical Engineering and Physics)
Source: Medical Engineering and Physics - February 3, 2016 Category: Biomedical Engineering Authors: Megan K. MacGillivray, Ranita H.K. Manocha, Bonita Sawatzky Source Type: research

The effects of a picosecond pulsed electric field on angiogenesis in the cervical cancer xenograft models.
CONCLUSION: PsPEF exhibited dramatic anti-tumor and anti-angiogenesis effects in cervical cancer xenograft models by exerting direct effect on cancer cells and vascular endothelial cells and indirect effect on tumor angiogenesis-related factors. PMID: 26851601 [PubMed - as supplied by publisher] (Source: Gynecologic Oncology)
Source: Gynecologic Oncology - February 3, 2016 Category: Cancer & Oncology Authors: Wu L, Yao C, Xiong Z, Zhang R, Wang Z, Wu Y, Qin Q, Hua Y Tags: Gynecol Oncol Source Type: research

Modeling Spatio-Temporal Extreme Events Using Graphical Models
We propose a novel statistical model to describe spatio-temporal extreme events. The model can be used, for instance, to estimate extreme-value temporal pattern such as seasonality and trend, and further to predict the distribution of extreme events in the future. Such model usually involves thousands or even millions of variables in the spatio-temporal domain, whereas only one single observation is available for each location and time point. To address this challenge, previous works usually employ learning and inference methods that are computationally burdensome, and therefore are prohibitive for large-scale data. Moreov...
Source: IEEE Transactions on Signal Processing - February 2, 2016 Category: Biomedical Engineering Source Type: research

Communicating Over Filter-and-Forward Relay Networks With Channel Output Feedback
Relay networks aid in increasing the rate of communication from source to destination. However, the capacity of even a three-terminal relay channel is an open problem. In this paper, we propose a new lower bound for the capacity of the three-terminal relay channel with destination-to-source feedback in the presence of noise with memory. Our lower bound improves on the existing bounds in the literature. We then extend our lower bound to general relay network configurations using an arbitrary number of filter-and-forward relay nodes. Such network configurations are common in many multihop communication systems where the inte...
Source: IEEE Transactions on Signal Processing - February 2, 2016 Category: Biomedical Engineering Source Type: research

A Time-Frequency Based Method for the Detection and Tracking of Multiple Non-Linearly Modulated Components With Births and Deaths
The estimation of the components which contain the characteristics of a signal attracts great attention in many real world applications. In this paper, we address the problem of the tracking of multiple signal components over discrete time series. We propose an algorithm to first detect the components from a given time-frequency distribution and then to track them automatically. In the first place, the peaks corresponding to the signal components are detected using the statistical properties of the spectral estimator. Then, an original classifier is proposed to automatically track the detected peaks in order to build compo...
Source: IEEE Transactions on Signal Processing - February 2, 2016 Category: Biomedical Engineering Source Type: research

CPHD-DOA Tracking of Multiple Extended Sonar Targets in Impulsive Environments
In this paper, we propose a novel phased-array track before detect (TBD) filter for tracking multiple distributed (extended) targets from impulsive observations. Since the targets are angularly spread, we track the centroid Direction Of Arrival (DOA) of the target-generated (or backscattered) signal. The main challenge stems from the random target signals that, conditional to their respective states, constitute non-deterministic contributions to the system observation. The novelty of our approach is twofold. First, we develop a Cardinalized Probability Hypothesis Density (CPHD) filter for tracking multiple targets with non...
Source: IEEE Transactions on Signal Processing - February 2, 2016 Category: Biomedical Engineering Source Type: research

Scaled Largest Eigenvalue Detection for Stationary Time-Series
This paper studies the performance of the scaled largest eigenvalue (SLE) detector used for the detection of stationary time-series. We focus on a single-antenna setup and a blind detection scenario (neither the signal covariance, nor the noise variance are known). The SLE detector has received much attention in the context of cognitive radios (CR) due to its simplicity, good performance and robustness to noise level uncertainties. Specifically, our goal is to analyze the detector based on the statistic $Gamma={lambda_{1}oversum_{i=1}^{p}lambda_{i}}$, where $lambda_{1}geqlambda_{2}geqldotsgeqlambda_{p}$ represent the order...
Source: IEEE Transactions on Signal Processing - February 2, 2016 Category: Biomedical Engineering Source Type: research

Parallelized Structures for MIMO FBMC Under Strong Channel Frequency Selectivity
A novel architecture for MIMO transmission and reception of filterbank multicarrier (FBMC) modulated signals under strong frequency selectivity is presented. The proposed system seeks to approximate an ideal frequency-selective precoder and linear receiver by Taylor expansion, exploiting the structure of the analysis and synthesis filterbanks. The resulting architecture is implemented by linearly combining conventional MIMO linear transceivers, which are applied to sequential derivatives of the original filterbank. The classical per-subcarrier precoding/linear receiver configuration is obtained as a special case of this ar...
Source: IEEE Transactions on Signal Processing - February 2, 2016 Category: Biomedical Engineering Source Type: research

Comparison of Chlorella vulgaris and cyanobacterial biomass: cultivation in urban wastewater and methane production.
This study showed that cyanobacteria growth rates could be comparable to microalgae while presenting the additional benefit of an increased anaerobic digestibility. PMID: 26837504 [PubMed - as supplied by publisher] (Source: Bioprocess and Biosystems Engineering)
Source: Bioprocess and Biosystems Engineering - February 2, 2016 Category: Biomedical Engineering Authors: Mendez L, Sialve B, Tomás-Pejó E, Ballesteros M, Steyer JP, González-Fernández C Tags: Bioprocess Biosyst Eng Source Type: research

Retour sur EUROMEDLAB 2015
Publication date: Available online 1 February 2016 Source:IRBM News Author(s): S. Vesseron (Source: IRBM News)
Source: IRBM News - February 1, 2016 Category: Biomedical Engineering Source Type: research

Characterizing tissue stiffness at the tip of a rigid needle using an opto-mechanical force sensor.
We present a novel device that allows the user to measure the Young Modulus of a material at the opening of a 5 mm diameter needle. The device relies on a miniaturized cantilever spring mounted at the end of the needle and interrogated via Fabry-Pérot optical fiber interferometry. The probe is repetitively brought in and out of contact with the sample at the end of the needle by means of a steel cable that is controlled via a piezoelectric actuator located at the proximal end. We demonstrate the ability of our device to detect and quantify layers of varying stiffness during needle insertion in a gelatin phantom and to suc...
Source: Biomedical Microdevices - February 1, 2016 Category: Biomedical Engineering Authors: Beekmans SV, Iannuzzi D Tags: Biomed Microdevices Source Type: research

A Simple fMRI Compatible Robotic Stimulator to Study the Neural Mechanisms of Touch and Pain.
Abstract This paper presents a simple device for the investigation of the human somatosensory system with functional magnetic imaging (fMRI). PC-controlled pneumatic actuation is employed to produce innocuous or noxious mechanical stimulation of the skin. Stimulation patterns are synchronized with fMRI and other relevant physiological measurements like electroencephalographic activity and vital physiological parameters. The system allows adjustable regulation of stimulation parameters and provides consistent patterns of stimulation. A validation experiment demonstrates that the system safely and reliably identifies...
Source: Annals of Biomedical Engineering - February 1, 2016 Category: Biomedical Engineering Authors: Riillo F, Bagnato C, Allievi AG, Takagi A, Fabrizi L, Saggio G, Arichi T, Burdet E Tags: Ann Biomed Eng Source Type: research

Mastoid Vibration Affects Dynamic Postural Control During Gait.
Abstract Our objective was to investigate how manipulating sensory input through mastoid vibration (MV) could affect dynamic postural control during walking, with and without simultaneous manipulation of the visual and the somatosensory systems. We used three levels of MV (none, unilateral, and bilateral) via vibrating elements placed on the mastoid processes. We combined this with the six conditions of the Locomotor Sensory Organization Test (LSOT) paradigm to challenge the visual and somatosensory systems. We hypothesized that MV would affect both amount and temporal structure measures of sway variability during ...
Source: Annals of Biomedical Engineering - February 1, 2016 Category: Biomedical Engineering Authors: Chien JH, Mukherjee M, Stergiou N Tags: Ann Biomed Eng Source Type: research

Evaluation of Physiological Control Systems for Rotary Left Ventricular Assist Devices: An In-Vitro Study.
This study compared eight physiological control systems for LVAD support against constant speed mode. Pulmonary (PVR) and systemic (SVR) vascular resistance changes, a passive postural change and exercise were simulated in a mock circulation loop to evaluate the controller's ability to prevent suction and congestion and to increase exercise capacity. Three active and one passive control systems prevented ventricular suction at high PVR (500 dyne s cm(-5)) and low SVR (600 dyne s cm(-5)) by decreasing LVAD speed (by 200-515 rpm) and by increasing LVAD inflow cannula resistance (up to 1000 dyne s cm(-5)) respectively....
Source: Annals of Biomedical Engineering - February 1, 2016 Category: Biomedical Engineering Authors: Pauls JP, Stevens MC, Bartnikowski N, Fraser JF, Gregory SD, Tansley G Tags: Ann Biomed Eng Source Type: research

Real-Time Monitoring of Singlet Oxygen and Oxygen Partial Pressure During the Deep Photodynamic Therapy In Vitro.
Abstract Photodynamic therapy (PDT) is an effective noninvasive method for the tumor treatment. The major challenge in current PDT research is how to quantitatively evaluate therapy effects. To our best knowledge, this is the first time to combine multi-parameter detection methods in PDT. More specifically, we have developed a set of system, including the high-sensitivity measurement of singlet oxygen, oxygen partial pressure and fluorescence image. In this paper, the detection ability of the system was validated by the different concentrations of carbon quantum dots. Moreover, the correlation between singlet oxyge...
Source: Annals of Biomedical Engineering - February 1, 2016 Category: Biomedical Engineering Authors: Li W, Huang D, Zhang Y, Liu Y, Gu Y, Qian Z Tags: Ann Biomed Eng Source Type: research

Announcing Regenerative Engineering and Translational Medicine.
Authors: PMID: 26833035 [PubMed - as supplied by publisher] (Source: Annals of Biomedical Engineering)
Source: Annals of Biomedical Engineering - February 1, 2016 Category: Biomedical Engineering Tags: Ann Biomed Eng Source Type: research

[Front cover]
Presents the front cover for this issue of the publication. (Source: IEEE Transactions on Biomedical Engineering)
Source: IEEE Transactions on Biomedical Engineering - February 1, 2016 Category: Biomedical Engineering Source Type: research