Academic literature on the topic 'AC stimulation'

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Journal articles on the topic "AC stimulation"

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Ma, Xiaofeng, and Nobuo Suga. "Augmentation of Plasticity of the Central Auditory System by the Basal Forebrain and/or Somatosensory Cortex." Journal of Neurophysiology 89, no. 1 (January 1, 2003): 90–103. http://dx.doi.org/10.1152/jn.00968.2001.

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Auditory conditioning (associative learning) or focal electric stimulation of the primary auditory cortex (AC) evokes reorganization (plasticity) of the cochleotopic (frequency) map of the inferior colliculus (IC) as well as that of the AC. The reorganization results from shifts in the best frequencies (BFs) and frequency-tuning curves of single neurons. Since the importance of the cholinergic basal forebrain for cortical plasticity and the importance of the somatosensory cortex and the corticofugal auditory system for collicular and cortical plasticity have been demonstrated, Gao and Suga pro
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KNISLEY, STEPHEN B. "Exploring Cardiac Response to AC Stimulation." Journal of Cardiovascular Electrophysiology 12, no. 10 (October 2001): 1185–86. http://dx.doi.org/10.1046/j.1540-8167.2001.01185.x.

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Su, Chen-Ying, Tzan Fang, and Hsu-Wei Fang. "Effects of Electrostatic Field on Osteoblast Cells for Bone Regeneration Applications." BioMed Research International 2017 (2017): 1–9. http://dx.doi.org/10.1155/2017/7124817.

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Many external stimulations have been shown to promote bone regeneration. The effects of an alternating current (AC) electrostatic field, one of external stimulations, generated from a device with high voltage and low current output on human osteoblastic cell line have been investigated in this study. We investigated how human osteoblasts responded to an AC electrostatic field, and the output parameters were set as 1 kV and 160 μA. Our results showed that, under such condition, the AC electrostatic field had a downregulation effect on the production ability of alkaline phosphatase and type 1 co
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Ma, Xiaofeng, and Nobuo Suga. "Plasticity of Bat's Central Auditory System Evoked by Focal Electric Stimulation of Auditory and/or Somatosensory Cortices." Journal of Neurophysiology 85, no. 3 (March 1, 2001): 1078–87. http://dx.doi.org/10.1152/jn.2001.85.3.1078.

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Recent findings indicate that the corticofugal system would play an important role in cortical plasticity as well as collicular plasticity. To understand the role of the corticofugal system in plasticity, therefore, we studied the amount and the time course of plasticity in the inferior colliculus (IC) and auditory cortex (AC) evoked by focal electrical stimulation of the AC and also the effect of electrical stimulation of the somatosensory cortex on the plasticity evoked by the stimulation of the AC. In adult big brown bats ( Eptesicus fuscus), we made the following major findings. 1) Electri
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Chaudhry, A., and J. G. Granneman. "Effect of hypothyroidism on adenylyl cyclase activity and subtype gene expression in brown adipose tissue." American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 273, no. 2 (August 1, 1997): R762—R767. http://dx.doi.org/10.1152/ajpregu.1997.273.2.r762.

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Brown adipose tissue (BAT) expresses several adenylyl cyclase (AC) subtypes, and adrenergic stimulation selectively upregulates AC-III gene expression. Previous studies have described synergistic interactions between the sympathetic nervous system (SNS) and 3,5,3'-triiodothyronine (T3) on the regulation of gene expression in BAT. Because adrenergic stimulation also increases the activity of BAT type II thyroxine 5'-deiodinase (DII) and local T3 generation is important for many functional responses in BAT, we examined the effects of thyroid hormone status on the expression of various AC subtype
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Ward, Alex R. "Electrical Stimulation Using Kilohertz-Frequency Alternating Current." Physical Therapy 89, no. 2 (February 1, 2009): 181–90. http://dx.doi.org/10.2522/ptj.20080060.

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Transcutaneous electrical stimulation using kilohertz-frequency alternating current (AC) became popular in the 1950s with the introduction of “interferential currents,” promoted as a means of producing depth-efficient stimulation of nerve and muscle. Later, “Russian current” was adopted as a means of muscle strengthening. This article reviews some clinically relevant, laboratory-based studies that offer an insight into the mechanism of action of kilohertz-frequency AC. It provides some answers to the question: “What are the optimal stimulus parameters for eliciting forceful, yet comfortable, e
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Raymaekers, S., Z. Van Duppen, K. Demyttenaere, L. Luyten, L. Gabriels, B. Nuttin, and C. Bervoets. "Deep brain stimulation and anterior capsulotomy: The question of autonomy." European Psychiatry 41, S1 (April 2017): S323. http://dx.doi.org/10.1016/j.eurpsy.2017.02.249.

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IntroductionIn carefully selected treatment-refractory patients with obsessive compulsive disorder (OCD), deep brain stimulation (DBS) or anterior capsulotomy (AC) might be considered as a possible treatment. However, the direct intervention in the brain can raise questions about autonomy. Do patients still feel like they are in control of their actions when their behavior is changed by a surgical intervention?Objective/aimsTo examine in both AC and DBS patients whether these intervention influenced perception of autonomy. We aimed to discover any differences in these perceptions when comparin
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Ma, Xiaofeng, and Nobuo Suga. "Lateral Inhibition for Center-Surround Reorganization of the Frequency Map of Bat Auditory Cortex." Journal of Neurophysiology 92, no. 6 (December 2004): 3192–99. http://dx.doi.org/10.1152/jn.00301.2004.

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Repetitive acoustic stimulation, auditory fear conditioning, and focal electric stimulation of the auditory cortex (AC) each evoke the reorganization of the central auditory system. Our current study of the big brown bat indicates that focal electric stimulation of the AC evokes center-surround reorganization of the frequency map of the AC. In the center, the neuron's best frequencies (BFs), together with their frequency–tuning curves, shift toward the BFs of electrically stimulated cortical neurons (centripetal BF shifts). In the surround, BFs shift away from the stimulated cortical BF (centr
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Kiritsy, Michael. "Burst Stimulation Could Be the Next Generation of Spinal Cord Stimulation." Topics in Pain Management 31, no. 11 (June 2016): 8–9. http://dx.doi.org/10.1097/01.tpm.0000484123.86649.ac.

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Surikova, Ekaterina Igorevna, Elena Frantsiyants, Irina A. Goroshinskaya, Yulia A. Pogorelova, Valeria A. Bandovkina, Irina Valerevna Neskubina, Andrey A. Maslov, et al. "Does signet-ring cell carcinoma of the stomach (SRCC) need stimulation of neoangiogenesis?" Journal of Clinical Oncology 36, no. 4_suppl (February 1, 2018): 33. http://dx.doi.org/10.1200/jco.2018.36.4_suppl.33.

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33 Background: Tumor neoangiogenesis is a complex coordinated process involving various regulatory molecules. Vascular endothelial growth factors, in particular VEGF-A, are important effectors. A multipotent TGF-β1 cytokine can modulate stromal angiogenesis reactions promoting the tumor growth. Our purpose was to study the function of the system of pro-angiogenic cytokines in tissues of stomach tumors of various histological types - adenocarcinoma (AC) and signet-ring cell carcinoma (SRCC). Methods: The concentrations of VEGF-A, VEGF-R1 and TGF-β1 were studied by ELISA in tumors, peritumoral z
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Dissertations / Theses on the topic "AC stimulation"

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Ly, Mai Thanh Graduate School of Biomedical Engineering Faculty of Engineering UNSW. "Electrical stimulation of cells involved in wound healing." Publisher:University of New South Wales. Graduate School of Biomedical Engineering, 2008. http://handle.unsw.edu.au/1959.4/41523.

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Problem investigated: Chronic wounds are not only a major burden to the patient arising from general pain and discomfort but also generate economic costs to both these individuals and the health care system. Various electrical stimulation regimes have been employed to study the effects of electrical stimulation on wound healing both in vivo and in vitro. In was hypothesised that electrical stimulation using various waveforms can modulate cell function, particularly cell migration. The aim of this thesis was to study the effects of electrical stimulation on cellular migration, in particular
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Kumar, Pragya Jai. "Effects of AC Stimulation on Chick DRG Neurite Growth, Density and Directionality." University of Akron / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=akron1376578750.

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Maslin, Michael Robin Daniel. "Plasticity, hemispheric asymmetries and the neural representation of sound." Thesis, University of Manchester, 2011. http://www.manchester.ac.uk/escholar/uk-ac-man-scw:106396.

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The mature central nervous system (CNS) has the capacity to reorganise when there is a change in sensory input. However, studies using the N1 cortical auditory evoked potential, or its magnetic homolog N1m, have not consistently demonstrated evidence of plasticity in adults with late onset unilateral deafness. In addition, little is known about the time course of experience-related plasticity in adults with unilateral deafness. The aim of the studies described in this thesis was to investigate plasticity in adults with unilateral deafness, using N1 auditory evoked potentials. Deafness occurred
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Kohli, Siddharth. "Closed-loop transcranial electrical stimulation : novel techniques for integrating electroencephalography and real-time adjustments of a.c. stimulation." Thesis, University of Manchester, 2018. https://www.research.manchester.ac.uk/portal/en/theses/closedloop-transcranial-electrical-stimulation-novel-techniques-for-integrating-electroencephalography-and-realtime-adjustments-of-ac-stimulation(8058dac2-60a0-47e7-803a-8630a734305d).html.

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The goal of this thesis is to design methods and techniques for closed-loop transcranial Electric Stimulation (tES) based on feedback from ongoing neural activity. tES is a popular Non-Invasive Brain Stimulation (NIBS) approach and has been shown to modulate ongoing brain activity to affect behaviour. The application of these methods has major implications in both understanding the anatomy & function of the brain, and development of therapies for non-pharmacological intervention in mental health disorders. A review of existing brain imaging techniques compatible with tES shows that electro
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Michou, Emilia. "Mechanisms and therapeutic application of neurostimulation in the treatment of dysphagia after stroke." Thesis, University of Manchester, 2010. http://www.manchester.ac.uk/escholar/uk-ac-man-scw:136896.

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"Long-lasting AC stimulation of myocardial tissue." Tulane University, 2002.

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Fibrillation, the life-threatening loss of cardiac output that occurs through a severe disruption in the normal propagation of the electrical wavefront responsible for triggering regular contraction of the heart, is treated through timely delivery of strong electrical shocks, termed defibrillation. While the clinical procedure is performed with direct current (DC) waveforms, recent experimental studies have shown that long-lasting alternating current (AC) waveforms can defibrillate the heart via novel mechanisms, such as entrainment and sustained depolarization. The purpose of this research is
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Conference papers on the topic "AC stimulation"

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Haeffele, Benjamin D., and Robert J. Butera. "Modifying the Hodgkin-Huxley Model for High Frequency AC Stimulation." In 2007 3rd International IEEE/EMBS Conference on Neural Engineering. IEEE, 2007. http://dx.doi.org/10.1109/cne.2007.369731.

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Joseph, Laveeta, and Robert J. Butera. "Conduction Block in Unmyelinated Nerves Using High Frequency AC Stimulation." In 2007 3rd International IEEE/EMBS Conference on Neural Engineering. IEEE, 2007. http://dx.doi.org/10.1109/cne.2007.369738.

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Nitsch, K., T. Sobanski, K. Wisniewski, and B. Licznerski. "AC response measurements of semiconductor gas sensors for temperature shift stimulation." In 26th International Spring Seminar on Electronics Technology: Integrated Management of Electronic Materials Production, 2003. IEEE, 2003. http://dx.doi.org/10.1109/isse.2003.1260558.

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Joseph, Laveeta, Benjamin D. Haeffele, and Robert J. Butera. "Conduction block induced by high frequency AC stimulation in unmyelinated nerves." In 2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE, 2007. http://dx.doi.org/10.1109/iembs.2007.4352641.

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Sakiyama, Ryota, Kazuya Matsumoto, Koji Yamamoto, Yusuke Morita, and Eiji Nakamachi. "Development of AC Magnetic Field Stimulation Bio-Reactor for Three-Dimensional Culture of PC12 Cells." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-70878.

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Recently, the electromagnetic stimulation method to enhance a nerve axonal extension has been attracting a great attention in the nerve regeneration. In this study, we design and fabricate a new 3D bio-reactor, which can implement uniform AC magnetic field (ACMF) stimulation on PC12 cells. We observe the morphology of PC12 cells using the multi photon microscope and evaluate effectiveness of uniform ACMF stimulation of the nerve axonal extension and the neural network generation. Firstly, a uniform ACMF stimulation bio-reactor was designed by using the pole piece structure. We searched an opti
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Ryzhii, Maxim, and Elena Ryzhii. "Simulation of the Effect of AC stimulation on Atrioventricular Node with Nonlinear Model." In 2020 11th Conference of the European Study Group on Cardiovascular Oscillations (ESGCO). IEEE, 2020. http://dx.doi.org/10.1109/esgco49734.2020.9158159.

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Kanayama, Jumpei, Ibuki Nomura, Noriki Mochizuki, Takafumi Koike, and Sousuke Nakamura. "Basic Evaluation of Carbonate Stimulus Amplification and Taste Change Using AC Electric Stimulation." In 2021 IEEE/SICE International Symposium on System Integration (SII). IEEE, 2021. http://dx.doi.org/10.1109/ieeeconf49454.2021.9382782.

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Asan, Ahmet S., and Mesut Sahin. "Modulation of Multiunit Spike Activity by Transcranial AC Stimulation (tACS) in the Rat Cerebellar Cortex." In 2019 41st Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC). IEEE, 2019. http://dx.doi.org/10.1109/embc.2019.8856830.

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Matsumoto, Kazuya, Yusuke Morita, and Eiji Nakamachi. "Development of Hybrid Electromagnetic and Mechanical Stimulation System for Enhancement of Nerve Axonal Extension." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-65593.

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Recently, the electromagnetic and mechanical stimulation have been recognized as the effective extracellular environmental factor to enhance the defected peripheral nerve tissue regeneration. We designed and fabricated a bioreactor device, which can load the uniform AC magnetic field (ACMF) and the uniform tensile strain to stimulate PC12 nerve cell. For ACMF stimulation system, we used the pole piece structure to enable the uniform ACMF and in-situ microscopic observation. We confirmed the uniformity of magnetic field in the experiments. Further, the uniform strain in the stretch stimulation
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Javier, Jeffrey, Taylor Hurdle, Sammie Fernandez, and Kari Van Vliet. "Practical Dynamic Laser Stimulation Techniques for Complex Analog and Mixed Signal IC Failure Analysis." In ISTFA 2017. ASM International, 2017. http://dx.doi.org/10.31399/asm.cp.istfa2017p0390.

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Abstract The increasing electrical design and physical complexity of semiconductor devices, especially in the analog and mixed signal (AMS) applications, directly influences the development and evolution of fault isolation techniques. One of these techniques is Dynamic Laser Stimulation (DLS) which is widely used in the industry for effective identification of subtle failure mechanisms and soft defects especially for AC signal-related failures [1, 2]. However, for analysis of some complex AMS IC failure modes, the tool’s standard setup may not always be compatible with the biasing requirements
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