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https://www.readbyqxmd.com/read/28436913/synchronization-of-reaction-diffusion-neural-networks-with-dirichlet-boundary-conditions-and-infinite-delays
#1
Yin Sheng, Hao Zhang, Zhigang Zeng
This paper is concerned with synchronization for a class of reaction-diffusion neural networks with Dirichlet boundary conditions and infinite discrete time-varying delays. By utilizing theories of partial differential equations, Green's formula, inequality techniques, and the concept of comparison, algebraic criteria are presented to guarantee master-slave synchronization of the underlying reaction-diffusion neural networks via a designed controller. Additionally, sufficient conditions on exponential synchronization of reaction-diffusion neural networks with finite time-varying delays are established...
April 17, 2017: IEEE Transactions on Cybernetics
https://www.readbyqxmd.com/read/28434128/aspects-on-the-history-of-transmission-and-favor-of-distribution-of-viruses-by-iatrogenic-action-perhaps-an-example-of-a-paradigm-of-the-worldwide-spread-of-hiv
#2
REVIEW
Lutz G Gürtler, Josef Eberle
Transmission of infectious agents might be associated with iatrogenic actions of charitable help in health care. An example is the vaccination against yellow fever in USA that transmitted hepatitis B virus. Another example is injections of praziquantel for treatment and cure of schistosomiasis in Central and Northern Africa, with a focus in Egypt that has spread hepatitis C virus. There is no indication that human T-lymphotropic virus type 1 was spread by injection treatment for African trypanosomiasis, syphilis and treponematosis, but these treatments might have contributed to the early spread of human immunodeficiency virus type 1 (HIV-1) in Central Africa...
April 22, 2017: Medical Microbiology and Immunology
https://www.readbyqxmd.com/read/28421308/an-intelligent-remote-monitoring-system-for-total-knee-arthroplasty-patients
#3
Yunus Msayib, Patrick Gaydecki, Michael Callaghan, Nicola Dale, Sheheera Ismail
For the first six weeks following total knee arthroplasty (TKA), a patient will attend an outpatient clinic typically seen twice weekly. Here, an exercise regime is performed and improvement assessed using a hand held goniometer that measures the maximum angle of knee flexion, an important metric of progress. Additionally a series of daily exercises is performed at home, recorded in a diary. This protocol has problems. Patients must attend the hospital with assistance since they are not permitted to drive for six weeks following the procedure; appointments are sometimes missed; there are occasionally not enough physiotherapy appointment available; furthermore, it is difficult to be sure that patients are compliant with their exercises at home...
June 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/28421179/synergy-based-bilateral-port-a-universal-control-module-for-tele-manipulation-frameworks-using-asymmetric-master-slave-systems
#4
Anais Brygo, Ioannis Sarakoglou, Giorgio Grioli, Nikos Tsagarakis
Endowing tele-manipulation frameworks with the capability to accommodate a variety of robotic hands is key to achieving high performances through permitting to flexibly interchange the end-effector according to the task considered. This requires the development of control policies that not only cope with asymmetric master-slave systems but also whose high-level components are designed in a unified space in abstraction from the devices specifics. To address this dual challenge, a novel synergy port is developed that resolves the kinematic, sensing, and actuation asymmetries of the considered system through generating motion and force feedback references in the hardware-independent hand postural synergy space...
2017: Frontiers in Bioengineering and Biotechnology
https://www.readbyqxmd.com/read/28398057/from-master-slave-to-peer-to-peer-coupling-in-chemical-reaction-networks
#5
Gábor Holló, Brigitta Dúzs, Istvan Szalai, Istvan Lagzi
Design strategy through linking a driving pH oscillator (master system) to a pH sensitive complexation, precipitation or protonation equilibrium (slave slave) has been widely used to create and control concentration oscillations of chemical entities (e.g., monovalent cations, DNA, nanoparticles) not participating in the pH oscillatory system. No systematic investigation has been carried out on how the components of these equilibria affect the characteristics of the driving pH oscillators, and this feedback effect has been often neglected in previous studies...
April 11, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28388472/robust-fixed-time-synchronization-for-uncertain-complex-valued-neural-networks-with-discontinuous-activation-functions
#6
Xiaoshuai Ding, Jinde Cao, Ahmed Alsaedi, Fuad E Alsaadi, Tasawar Hayat
This paper is concerned with the fixed-time synchronization for a class of complex-valued neural networks in the presence of discontinuous activation functions and parameter uncertainties. Fixed-time synchronization not only claims that the considered master-slave system realizes synchronization within a finite time segment, but also requires a uniform upper bound for such time intervals for all initial synchronization errors. To accomplish the target of fixed-time synchronization, a novel feedback control procedure is designed for the slave neural networks...
March 23, 2017: Neural Networks: the Official Journal of the International Neural Network Society
https://www.readbyqxmd.com/read/28388205/slave-boson-theory-of-orbital-differentiation-with-crystal-field-effects-application-to-uo_-2
#7
Nicola Lanatà, Yongxin Yao, Xiaoyu Deng, Vladimir Dobrosavljević, Gabriel Kotliar
We derive an exact operatorial reformulation of the rotational invariant slave boson method, and we apply it to describe the orbital differentiation in strongly correlated electron systems starting from first principles. The approach enables us to treat strong electron correlations, spin-orbit coupling, and crystal field splittings on the same footing by exploiting the gauge invariance of the mean-field equations. We apply our theory to the archetypical nuclear fuel UO_{2} and show that the ground state of this system displays a pronounced orbital differentiation within the 5f manifold, with Mott-localized Γ_{8} and extended Γ_{7} electrons...
March 24, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28387724/analysis-and-tools-for-improved-management-of-connectionless-and-connection-oriented-ble-devices-coexistence
#8
Antonio Del Campo, Lorenzo Cintioni, Susanna Spinsante, Ennio Gambi
With the introduction of low-power wireless technologies, like Bluetooth Low Energy (BLE), new applications are approaching the home automation, healthcare, fitness, automotive and consumer electronics markets. BLE devices are designed to maximize the battery life, i.e., to run for long time on a single coin-cell battery. In typical application scenarios of home automation and Ambient Assisted Living (AAL), the sensors that monitor relatively unpredictable and rare events should coexist with other sensors that continuously communicate health or environmental parameter measurements...
April 7, 2017: Sensors
https://www.readbyqxmd.com/read/28382309/is-a-microrna-328-binding-site-in-pax6-associated-with-rolandic-epilepsy
#9
Amelia McGlade, Kenneth A Myers, Samuel F Berkovic, Ingrid E Scheffer, Slavé Petrovski, Michael S Hildebrand
No abstract text is available yet for this article.
April 2017: Annals of Clinical and Translational Neurology
https://www.readbyqxmd.com/read/28347829/as-vivid-as-a-weed%C3%A2-medicinal-and-cosmetic-plant-uses-amongst-the-urban-youth-in-french-guiana
#10
Marc Alexandre Tareau, Marianne Palisse, Guillaume Odonne
ETHNOPHARMACOLOGICAL RELEVANCE: French Guiana is a French overseas territory with a rich history of migration that has led to a highly intercultural society. Today, its population is one of the youngest in the French territory and is rapidly increasing. Despite a context of cultural revival seeking "tradition", a distanced baseline of local practices is still lacking. This work addresses some aspects of the cultural hybridizations in progress in urban areas. METHODS: Semi directed interviews were conducted with willing participants aged between 18 and 40...
May 5, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28340582/optimisation-of-an-exemplar-oculomotor-model-using-multi-objective-genetic-algorithms-executed-on-a-gpu-cpu-combination
#11
Eleftherios Avramidis, Ozgur E Akman
BACKGROUND: Parameter optimisation is a critical step in the construction of computational biology models. In eye movement research, computational models are increasingly important to understanding the mechanistic basis of normal and abnormal behaviour. In this study, we considered an existing neurobiological model of fast eye movements (saccades), capable of generating realistic simulations of: (i) normal horizontal saccades; and (ii) infantile nystagmus - pathological ocular oscillations that can be subdivided into different waveform classes...
March 24, 2017: BMC Systems Biology
https://www.readbyqxmd.com/read/28329005/rethinking-the-influence-of-hydroelectric-development-on-gene-flow-in-a-long-lived-fish-the-lake-sturgeon-acipenser-fulvescens
#12
Craig A McDougall, Amy B Welsh, Thierry Gosselin, W Gary Anderson, Patrick A Nelson
Many hydroelectric dams have been in place for 50 - >100 years, which for most fish species means that enough generations have passed for fragmentation induced divergence to have accumulated. However, for long-lived species such as Lake Sturgeon, Acipenser fulvescens, it should be possible to discriminate between historical population structuring and contemporary gene flow and improve the broader understanding of anthropogenic influence. On the Winnipeg River, Manitoba, two hypotheses were tested: 1) Measureable quantities of former reservoir dwelling Lake Sturgeon now reside downstream of the Slave Falls Generating Station, and 2) genetically differentiated populations of Lake Sturgeon occur upstream and downstream, a result of historical structuring...
2017: PloS One
https://www.readbyqxmd.com/read/28323894/a-generalized-phase-resetting-method-for-phase-locked-modes-prediction
#13
Sorinel A Oprisan, Dave I Austin
We derived analytically and checked numerically a set of novel conditions for the existence and the stability of phase-locked modes in a biologically relevant master-slave neural network with a dynamic feedback loop. Since neural oscillators even in the three-neuron network investigated here receive multiple inputs per cycle, we generalized the concept of phase resetting to accommodate multiple inputs per cycle. We proved that the phase resetting produced by two or more stimuli per cycle can be recursively computed from the traditional, single stimulus, phase resetting...
2017: PloS One
https://www.readbyqxmd.com/read/28297647/solvent-slaved-dynamic-processes-observed-by-tryptophan-phosphorescence-of-human-serum-albumin
#14
Andrew R Draganski, Joel M Friedman, Richard D Ludescher
Despite extensive experimental and computational efforts to understand the nature of the hierarchy of protein fluctuations and the modulating role of the protein hydration shell, a detailed microscopic description of the dynamics of the protein-solvent system has yet to be achieved. By using single tryptophan protein phosphorescence, we follow site-specific internal protein dynamics over a broad temperature range and demonstrate three independent dynamic processes. Process I is seen at temperatures below the bulk solvent Tg, has low activation energy, and is likely due to fast vibrations that may be enabled by water mobility on the protein surface...
March 14, 2017: Biophysical Journal
https://www.readbyqxmd.com/read/28287073/validation-of-a-ct-guided-intervention-robot-for-biopsy-and-radiofrequency-ablation-experimental-study-with-an-abdominal-phantom
#15
Hyung Jin Won, Namkug Kim, Guk Bae Kim, Joon Beom Seo, Hongho Kim
PURPOSE: We aimed to evaluate the accuracy of a needle-placement robot for biopsy and radiofrequency ablation on an abdominal phantom. METHODS: A master-slave robotic system has been developed that includes a needle-path planning system and a needle-inserting robot arm with computed tomography (CT) and CT fluoroscopy guidance. For evaluation of its accuracy in needle placement, a commercially available abdominal phantom (Model 057A; CIRS Inc.) was used. The liver part of the phantom contains multiple spherical simulated tumors of three different size spheres...
March 13, 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/28279429/stabilization-and-synchronization-for-a-mechanical-system-via-adaptive-sliding-mode-control
#16
Zhankui Song, Kaibiao Sun, Shuai Ling
In this paper, we investigate the synchronization problem of chaotic centrifugal flywheel governor with parameters uncertainty and lumped disturbances. A slave centrifugal flywheel governor system is considered as an underactuated following-system which a control input is designed to follow a master centrifugal flywheel governor system. To tackle lumped disturbances and uncertainty parameters, a novel synchronization control law is developed by employing sliding mode control strategy and Nussbaum gain technique...
March 6, 2017: ISA Transactions
https://www.readbyqxmd.com/read/28270987/gabor-fusion-master-slave-optical-coherence-tomography
#17
Ramona Cernat, Adrian Bradu, Niels Møller Israelsen, Ole Bang, Sylvain Rivet, Pearse A Keane, David-Garway Heath, Ranjan Rajendram, Adrian Podoleanu
This paper describes the application of the Gabor filtering protocol to a Master/Slave (MS) swept source optical coherence tomography (SS)-OCT system at 1300 nm. The MS-OCT system delivers information from selected depths, a property that allows operation similar to that of a time domain OCT system, where dynamic focusing is possible. The Gabor filtering processing following collection of multiple data from different focus positions is different from that utilized by a conventional swept source OCT system using a Fast Fourier transform (FFT) to produce an A-scan...
February 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28269426/robot-assisted-microsurgical-forceps-with-haptic-feedback-for-transoral-laser-microsurgery
#18
Nikhil Deshpande, Manish Chauhan, Claudio Pacchierotti, Domenico Prattichizzo, Darwin G Caldwell, Leonardo S Mattos
In this paper, a novel, motorized, multi-degrees-of-freedom (DoF), microsurgical forceps tool is presented, which is based on a master-slave teleoperation architecture. The slave device is a 7-DoF manipulator with: (i) 6-DoF positioning and orientation, (ii) 1 open/close gripper DoF; and (iii) an integrated force/torque sensor for tissue grip-force measurement. The master device is a 7-DoF haptic interface which teleoperates the slave device, and provides haptic feedback in its gripper interface. The combination of the device and the surgeon interface replaces the manual, hand-held device providing easy-to-use and ergonomic tissue control, simplifying the surgical tasks...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28269420/development-of-five-finger-robotic-hand-using-master-slave-control-for-hand-assisted-laparoscopic-surgery
#19
Koki Yoshida, Hiroshi Yamada, Ryu Kato, Tatsuya Seki, Hiroshi Yokoi, Masaya Mukai
This study aims to develop a robotic hand as a substitute for a surgeon's hand in hand-assisted laparoscopic surgery (HALS). We determined the requirements for the proposed hand from a surgeon's motions in HALS. We identified four basic behaviors: "power grasp," "precision grasp," "open hand for exclusion," and "peace sign for extending peritoneum." The proposed hand had the minimum necessary DOFs for performing these behaviors, five fingers as in a human's hand, a palm that can be folded when a surgeon inserts the hand into the abdomen, and an arm for adjusting the hand's position...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28268402/a-wearable-signal-acquisition-system-for-physiological-signs-including-throat-ppg
#20
Yizhou Zhong, Yun Pan, Ling Zhang, Kwang-Ting Cheng
This paper presents a wearable signal acquisition system, which can measure physiological signs, i.e., electrocardiogram (ECG) and photoplethysmogram (PPG). The system is comprised of two parts: (1) an ECG sensor implemented in the master board which will be mounted on the chest and, (2) a combined PPG and motion sensor implemented in the slave board which will be worn around the neck area. The single-lead ECG, the single-channel PPG, and the 3-channel accelerometer signals are all sampled at 200Hz, and transmitted to an Android app through Bluetooth® low energy (BLE) in real time...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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