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Effects of paired-pulse electrical stimulation of the chorda tympani nerve on cells in the nucleus of the solitary tract of the ratRosen, Andrew M. January 2008 (has links)
Thesis (M.S.)--State University of New York at Binghamton, Department of Psychology, 2008. / Includes bibliographical references.
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Electrical excitation of teeth and its application to dentistryBjörn, Hilding. January 1946 (has links)
Akademisk avhandling - Karolinska institutet, Stockholm. / Added title page, with thesis note, inserted. Bibliography: p. [97]-101.
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Gastric electrical stimulation studies in patients with intractable nausea and comiting /Andersson, Stina, January 2010 (has links)
Diss. (sammanfattning) Göteborg : Univ. , 2010.
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Functional outcomes of pharyngeal stimulation in patients with dysphagia after surgical treatment for head and neck cancerHarris, Jennifer Alexandra. January 2010 (has links)
Thesis (M.Sc.)--University of Alberta, 2010. / A thesis submitted to the Faculty of Graduate Studies and Research in partial fulfillment of the requirements for the degree of Master of Science in Speech-Language Pathology, Department of Speech Pathology and Audiology. Title from pdf file main screen (viewed on July 25, 2010). Includes bibliographical references.
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Real-time implementation of signal processing algorithms for cochlear implant applications /Ramachandran, Rohith, January 2008 (has links)
Thesis (M.S.)--University of Texas at Dallas, 2008. / Includes vita. Includes bibliographical references (leaves 75-78)
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Estimulação com corrente pulsada de alta voltagem na cicatrização de áreas cruentas : modelo experimental com ratos Wistar / Stimulation with high voltage pulsed current in healing acute wounds : experimental model with Wistar ratsGenaro, Janaina Ticiane, 1987- 23 August 2018 (has links)
Orientador: Paulo Kharmandayan / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Ciências Médicas / Made available in DSpace on 2018-08-23T03:56:12Z (GMT). No. of bitstreams: 1
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Previous issue date: 2013 / Resumo: A reparação tecidual é de grande interesse para os profissionais da área da saúde. Sua eficiência acelera o processo de reabilitação, o retorno ao trabalho, atividades de lazer e até ao convívio social. Existem evidências de que a estimulação elétrica de alta voltagem (EEAV) pode diminuir a dor e facilitar o reparo tecidual. Este trabalho tem por finalidade avaliar macroscopicamente e microscopicamente o efeito da aplicação da corrente pulsada de alta voltagem (CPAV) na cicatrização de áreas cruentas em ratos. Foram utilizados 72 ratos da linhagem Wistar. Todos os animais foram submetidos á confecção de duas feridas padronizadas e localizadas uma na região dorso-cranial (ferida A) e outra dorso-caudal (ferida B). Estes animais foram distribuídos em 4 grupos G3, G5, G7 e G9, relativos à data de sacrifício nos dias 3, 5, 7 e 9, pós-procedimento. Cada grupo (n = 18) foi novamente distribuído em sub-grupo tratamento caudal (n=6), sub-grupo tratamento cranial (n=6) e subgrupo controle (n=6). Os grupos tratados receberam EEAV modo contínuo, frequência de 100 Hz, tempo de 30 minutos e uma intensidade média de 8mA regulada com aumento da amplitude, até observar-se uma contração muscular leve na região estimulada. O tratamento com EEAV foi realizado, com os animais em uma contensão, diariamente após as primeiras 24h da cirurgia, exceto no dia do sacrifício. Foram observadas as variações macroscópicas em relação área das feridas ao longo das fases pós-procedimentos, a presença ou não de secreção, e as alterações microscópicas morfológicas como proliferação fibroblástica, formação de neovasos, organização das fibras de colágeno, células mononucleares, polimorfonucleares e presença de tecido necrótico. Para a análise macroscópica utilizou-se o programa Auto Desk Design Review - 2012 e para a microscópica as colorações Hematoxilina-Eosina e Tricrômio de Masson. Os testes estatísticos utilizados foram análise de variância e a ANOVA para medidas repetidas, teste de Tukey, regressão de Poisson, nível de significância 5%. Os resultados mostram que após o tratamento, os ratos do subgrupo região cranial apresentaram uma redução mais significativa da ferida (ferida A) (p<0,0001) e a interação entre o local das feridas também foi significativa com p=0,0110, ou seja, se estimular a ferida A, a ferida B também cicatriza e se estimular a ferida B, a ferida A também vai cicatrizar mais rápido . Microscopicamente para as variáveis proliferação fibroblástica, fibras colágenas, neovasos, células polimorfonucleares e mononucleares não foi observado diferença significativa, apenas para tecido necrótico p=0,0384. Concluímos que histologicamente não houve melhora e macroscopicamente a EEAV induziu uma contração maior das feridas, principalmente quando o estímulo foi aplicado na área cranial do animal / Abstract: Tissue repair is a great interest to health professionals. Its efficiency accelerates the process of rehabilitation, return to work, leisure activities and even to social life. There is evidence that stimulation with high voltage (HVPS) can decrease pain and facilitate tissue repair. This study aims to evaluate macroscopically and microscopically the effect of the application of high voltage pulsed current (HVPC) in the healing of acunt wounds in rats. We used 72 male Wistar rats. All animals underwent two wounds will manufacture standard and located one on the dorsal-cranial (A sore) and one dorsal-caudal (B wound). These animals were divided into 4 groups G3, G5, G7 and G9, on the date of sacrifice on days 3, 5, 7 and 9 post-procedure. Each group (n = 18) were again distributed to sub-flow treatment group (n = 6) sub-cranial treatment group (n = 6) and the sub-control group (n = 6). The groups received HVES continuous mode frequency of 100 Hz, a time of 30 minutes and an average intensity of 8mA regulated with increased amplitude, to observe a slight muscle contraction in the region stimulated. HVES treatment was performed with the animal in a restraint, daily in the first 24 hours after surgery, but on the day of sacrifice. Macroscopic changes were observed over the wound area along the stages post-procedure, the presence or absence of secretion, and microscopic morphological changes as fibroblast proliferation, formation of new vessels, the organization of collagen fibers, mononuclear cells, and polymorphonuclear presence necrotic tissue. For the macroscopic analysis, we used the Auto Desk Design Review - 2012 and the microscopic stains hematoxylin-eosin and Masson Trichrome. The tests were used for statistical analysis of variance and repeated measures ANOVA, Tukey test, Poisson regression, significance level of 5%. The results show that after treatment, the rats of the cranial subgroup showed a more significant reduction of the wound (wound) (p <0.0001) and the interaction between the location of the wound was also significant at p = 0.0110, or is, to stimulate the wound a, B also heals the wound and stimulate wound B, the wound will also heal faster. Microscopically for the variables fibroblast proliferation, collagen fibers, new vessels, polymorphonuclear and mononuclear cells was not observed significant difference, only necrotic tissue p = 0.0384. We conclude that there was no improvement histologically and macroscopically HVES induced a greater contraction of wounds, especially when the stimulus was applied to the cranial area of the animal / Mestrado / Fisiopatologia Cirúrgica / Mestra em Ciências
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O uso da corrente interferencial no tratamento da vulvodínia localizada provocada = Use of interferential current in the treatment of localized provoked vulvodynia / Use of interferential current in the treatment of localized provoked vulvodyniaYoshida, Laura Pagotto, 1984- 20 August 2018 (has links)
Orientadores: Paulo César Giraldo, Rose Luce Gomes do Amaral / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Ciências Médicas / Made available in DSpace on 2018-08-20T19:21:36Z (GMT). No. of bitstreams: 1
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Previous issue date: 2012 / Resumo: Quadros vulvovaginais dolorosos crônicos causados por vulvodínia são queixas comuns nos consultórios ginecológicos, com prevalência de 9 a 16% nas mulheres americanas sexualmente ativas. Além de dor na relação sexual, a mulher com vulvodínia se apresenta ansiosa, depressiva e com alteração significativa em sua função sexual. Objetivo: Avaliar o tratamento fisioterápico com estimulação elétrica do tipo corrente interferencial (CI) em mulheres com vulvodínia localizada provocada (VLP). Desenho do estudo: Ensaio clínico randomizado cego simples com 32 mulheres com queixa de dor vulvovaginal ao coito há, pelo menos 6 meses, alocadas em dois grupos: tratamento versus controle-placebo. O primeiro recebeu 8 sessões de estimulação elétrica com CI (Endophasys NMS-0501 - KLD Biosistemas Equipamentos Eletrônicos Ltda., método bipolar, 4000Hz, amplitude de modulação de frequência de 100Hz, por 20 minutos) e o segundo recebeu os mesmos procedimentos, sem passagem de corrente elétrica. Os parâmetros analisados pré e pós-tratamento foram: dor subjetiva na relação sexual vaginal (escala visual analógica), frequência mensal de relações sexuais vaginais, dor no toque vulvar em exame físico (teste do cotonete, de 0 a 10) e função sexual feminina (questionário Índice de Função Sexual Feminina - FSFI). Os dados foram analisados usando testes Qui-quadrado de Pearson, Exato de Fisher e Mann-Whitney. O início e final do tratamento foram comparados pelo teste de Wilcoxon (amostras relacionadas) e de McNemar (efeito da intervenção), considerando nível de significância estatística de 5%. O software utilizado foi o SAS (Release 9.1, SAS Institute,Cary, NC, USA, 2002-2003) e o SPSS Statistics (Release 17.0). Resultados: Os grupos foram homogêneos em relação à idade, índice de massa corpórea (IMC), cor da pele, escolaridade, uso de anticoncepcional oral e de preservativo masculino. Os escores totais do FSFI na avaliação inicial entre os grupos tratamento e controle foram 19,01±4,85 e 18,13±8,27, e após a intervenção 27,35±3,64 e 21,25±6,74 (p=0,0001 e p=0,0125), respectivamente. A dor subjetiva na relação sexual vaginal diminuiu significativamente em ambos os grupos (de 7,69±1,13 para 4±2,41; p=0,0002, no grupo tratamento e 8,19±1,27 para 4,92±2,46; p=0,0010, no grupo controle). O número de relações sexuais vaginais mensais aumentou de 4,94±3,71 para 6,21±3,03 (p=0,0234) no primeiro e de 4±4,56 para 4,38±3,25 (ns) no segundo grupo. A análise da sensibilidade ao toque na região vulvar apresentou diminuição significativa da dor apenas no grupo tratamento, de 7,44±1,54 para 3,21±2,39 (p=0,0002), versus de 6,50±1,96 para 4,54±3,45 (ns), no grupo controle. Conclusão: O tratamento da VLP com CI promoveu melhora na função sexual das mulheres estudadas, aumento na frequência de relações vaginais mensais e diminuição da sensibilidade da dor vulvovaginal ao toque / Abstract: Vulvovaginal chronic pains caused by vulvodynia are common complaints in gynaecological clinics with a prevalence of 9-16% in sexually active American women. In addition to complaining of pain during intercourse, the woman with vulvodynia appears anxious, depressed and with significant changes in their sexual function. Objective: To evaluate physical therapy with electrical stimulation with interferential current (IC) in women with localized provoked vulvodynia (LPV). Materials and Methods: Single blind randomized clinical trial with 32 women with vulvovaginal pain during vaginal intercourse for at least six months, divided into two groups: treatment versus placebo-controlled. The first group received eight sessions of electrical stimulation with IC (Endophasys NMS-0501 - KLD Electronic Equipment Biosystems Ltda., Bipolar method, 4000Hz, amplitude modulation frequency of 100Hz for 20 minutes) and the second received the same procedures, without passing electric current. The parameters analysed before and after treatment were: subjective pain in vaginal intercourse (visual analogue scale), monthly frequency of vaginal intercourse, vulvar sensibility at touch during physical exam (cotton-swab test, 0-10) and sexual function (Female Sexual Function Index - FSFI). Data were analysed using chi-square test, Fisher exact and Mann-Whitney test. The beginning and end of treatment were compared using the Wilcoxon test (related samples) and McNemar (intervention effect), with statistical significance level of 5%. The software used was SAS (Release 9.1, SAS Institute, Cary, NC, USA, 2002- 2003) and SPSS (Release 17.0). Results: The groups were homogeneous regarding to age, body mass index, skin colour, schooling, use of oral contraceptives and condoms. The total scores of the FSFI of the treatment and control groups improved from 19.01±4.85 to 27.35±3.64 (p=0,0001) and from 18.13±8.27 to 21.25±6.74 (p=0.0125), respectively. The subjective pain during intercourse vaginal improved significantly in both groups (7.69±1.13 to 4±2.41; p=0.0002 in the treatment group and 8.19±1.27 to 4.92±2.46; p=0.0010 in the control group). The number of vaginal intercourse increased from 4.94±3.71 to 6.21±3.03 (p=0.0234) in the treatment group and 4±4.56 to 4.38±3.25 (ns) in the placebo group. The analysis of the sensibility to touch in the vulvar region significantly decreased only in the treatment group (7.44±1.54 to 3.21±2.39; p=0.0002, versus 6.50±1,96 to 4.54±3.45; (ns) in the control group). Conclusion: The treatment of LPV with IC promoted improvement in sexual function of women studied, increase in the monthly frequency of vaginal intercourse and a decrease in pain intensity at vulvar touch / Mestrado / Fisiopatologia Ginecológica / Mestra em Ciências da Saúde
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The efficacy of chiropractic adjustments and PAIN®GONE therapy in the treatment of trapezius myofascial pain syndromeEdwards, Nicole Lauren 09 October 2014 (has links)
M.Tech. (Chiropractic) / Myofascial trigger points are very common and can become a painful part of most people’s life at one time or another. According to Travell and Simons (1999), active upper trapezius myofascial trigger points are common in patients presenting with neck pain. Myofascial pain syndrome is a regional muscle disorder that is one of the most common causes of persistent pain in the head, face and neck regions (Rachlin, 2002). The PAIN®GONE pen is a device that produces a high voltage, low frequency pulse for only a brief period of time. The electrical stimulation activates endorphins in the hypothalamus which plays a role in pain relief (Puskas, 2004). The technical system of the device is clinically proven and uses Transcutaneous Electric Nerve Stimulation (TENS), based on the pain gate control theory of Melzack and Wall (1965). The purpose of this study was to determine the efficacy of treating active upper trapezius trigger points with PAIN®GONE therapy combined with cervical spine chiropractic adjustments.This study consisted of two groups, the PAIN®GONE therapy group (Group 1) with fifteen participants and the placebo PAIN®GONE therapy group (Group 2) with fifteen participants. The participants were between the ages of 18 and 40 years of age. Prior to becoming a participant of this study, individuals were assessed according to the inclusion and exclusion criteria, a case history, physical examination, cervical regional examination and upper trapezius muscle palpation to assess for upper trapezius myofascial trigger points. Treatment was applied to the cervical spine by Chiropractic adjustments, and to the upper active trapezius myofascial trigger points via PAIN®GONE therapy or placebo PAIN®GONE therapy, from which the subjective and objective data were based.Each participant was treated six times over a period of three weeks. Prior to the initiation of treatment, each participant was requested to complete a Vernon-Mior Neck Pain and Disability Index questionnaire and Numerical Pain Rating Scale. Algometer readings were obtained for the active upper trapezius myofascial trigger points. The Cervical Range of Motion (CROM) goniometer was used to obtain numerical values for the participant’s active cervical spine ranges of motion in flexion, extension, lateral flexion androtation. Both groups, received treatment to the active upper trapezius trigger points and Chiropractic adjustments to the cervical spine for a total of six treatment sessions. Both subjective and objective data readings were obtained before the 1st, 4th and 7th final consultation...
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Radio frequency energy for bioelectric stimulation of plantsVan Zyl, Pieter Johannes Jacobus 27 May 2013 (has links)
M.Tech. (Electrical Engineering) / For securing food production it is essential that every possible method should be investigated. This study is about utilising low power radio frequency (RF) energy signals from leaky transmission lines for the benefit of plant growth and production in hydroponic systems. Using these lines eliminates common problems like radiation interference and licence application protocols. Plant cell walls are covered with tightly-bonded, positively-charged calcium ions that affect the inflow of nutrients into the cell. As calcium ions have a mass twice that of the potassium ion, the fundamental harmonic of calcium is equal to the first harmonic of potassium (32Hz). Thousands (10k : 1) fewer positive potassium ions also exist around the cell wall and when stimulated at their resonance frequency (16Hz), they will bounce against the tightly bonded calcium ions so these calcium ions become dislodged from the cell wall. If this happens more nutrients can enter the cell causing acceleration in plant growth. A suitable electromagnetic wave for such an action is the amplitude modulated wave especially if it is modulated near the cyclotron resonance frequency of potassium (16Hz) or its even-harmonics of 32,64Hz etc. Applying sufficient energy in the lower modulated frequency when it is the same as the vibration frequency of the potassium ions surrounding the cell wall, these ions will then acquire some energy from the electrical wave. Controlling the process is important because if too many calcium ions are released it would cause plant stress and plant structure breakdown. The amplitude modulated wave will allow sufficient time for the calcium ions to return to the cell wall during the period without energy. To apply radio energy to a plant in the form of amplitude modulated signals requires a medium. One such medium is the use of transmitting energy into two leaky transmission lines to cause worse case standing waves, which could then be absorbed by the plants that are placed in between these transmission lines. The energy from the radio waves is then used to create window periods during which the calcium ions are dislodged allowing additional nutrients to enter the plant cell, enhancing plant growth and production.
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Flight behaviour elicited by electrical stimulation of the hypothalamus and midbrain in rats : Escape and avoidance propertiesClarke, Robert John January 1972 (has links)
Emotional, motivational, or species-specific behaviour can be elicited by intracranial electrical stimulation (ICS) in unanesthetized and unrestrained animals with chronically implanted electrodes. The purpose of this investigation was to describe and quantify, using an escape and avoidance task, a behaviour called flight, using rats as the experimental animal. An enclosed test box was used that had a hole in one wall covered by a moveable clear plastic plate. With the interior light on and exterior lights off, the hole represented the only opening in the box. Flight was then operationally defined as plate-pushing in response to ICS (escape response). It was found that only 25% of rats which showed manifestations of flight on pre-test screening would perform the escape response. After establishing reliable escape, the rats were given the opportunity to avoid ICS, at the threshold
voltage for escape, by responding to a signal (bell, light or click) predicting the occurrence of ICS. In over 200 trials there were at most only 10% avoidances and no tendency for faster responding. A current explanation for this, proposed by W. W. Roberts, was tested by allowing these rats to press a bar for brief ICS at the voltage used in avoidance. Only 40% of the subjects would self-stimulate. These, and other results from the literature suggest that rewarding onset of ICS, as in the Roberts hypothesis, is insufficient to explain the lack of avoidance. The electrode sites producing escape were found to be in the central gray of the midbrain, and in both the medial and lateral divisions of the middle to posterior hypothalamus near the fornix. The sites producing
similar behavioural manifestations but not escape were found to be in the same regions of the hypothalamus and midbrain. / Medicine, Faculty of / Graduate
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