Semestral thesis on the topic Psychogalvanic – reflex deals with causal formation, detection and subsequent using of this diagnostic signal. In the theoretical section we discuss the structure of skin, the mechanism formation skin resistence and its influence on skin appendages. It also deals with various ways to capture this reflex and factors affecting their own measurements. Described are the most common types of electrodes, which when taking psychogalvanic reflex use. Last chapter deals with the block diagram psychogalvanometer.

Made available in DSpace on 2014-12-17T15:34:46Z (GMT). No. of bitstreams: 1 IraliceMM_DISSERT.pdf: 282314 bytes, checksum: 394b3a1ca887a8481ea46240183a041c (MD5) Previous issue date: 2012-12-14 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / Abstract: Several factors can affect the development of the broiler, among them we can highlight nutrition and management. In the context nutritional, mineral supplementation is a necessary practice because, in general, the diets did not contain these elements in sufficient quantity to meet the needs of poultry. Zinc is a trace mineral essential to life, participating in several important functions in the body. Generally zinc is added to diets of birds in inorganic forms (oxides, carbonates or sufatos), however in its organic form or chelated presents more bioavailable. The objective of this study was to evaluate the effect of levels of organic zinc (ZnO) in the diet of broilers from 1 to 42 days, housed in new or reused litter. The experiment was conducted in the poultry sector of the Special Unit for Agricultural Sciences EAJ / UFRN. 576 chicks were used 1 day of commercial strain Cobb, distributed in a completely randomized in a 4x2 factorial arrangement with four levels of ZnO 0, 40, 80 and 120 ppm and two environments, new bed (COn) and reused litter (CRE) resulting in eight treatments with six replications of 12 birds. In the pre-initial responses were linearly increasing levels of ZnO on feed intake and quadratic effect on body weight and weight gain. The levels of 72.41 and 70.05 ppm of ZnO in the diet of chicks improved body weight and weight gain, respectively. There was interaction between ZnO and the type of bedding used. The ZnO did not affect broiler performance in the growing phase. There was an interaction between levels of ZnO and type of bed used. The levels of 61.50 and 85.30 ppm organic zinc improves immunity and increases the deposition of zinc in tibia of broilers at 42 days, respectively. ZnO also increases the resistance of the skin of broilers at 42 days of age. Using Cre improves performance of broilers from 1 to 42 days old / V?rios fatores podem interferir no desenvolvimento do frango de corte, dentre eles podemos destacar a nutri??o e o manejo. No contexto nutricional, a suplementa??o mineral ? uma pr?tica necess?ria, pois, de modo geral, as dietas n?o cont?m esses elementos em quantidade suficientes para atender as necessidades das aves. O zinco ? um micromineral essencial ? vida, participando de v?rias fun??es importantes ao organismo. Geralmente o zinco ? adicionado a dietas das aves nas formas inorg?nicas (oxidos, sufatos ou carbonatos), entretanto em sua forma org?nica ou quelatada apresenta-se mais biodispon?vel. Objetivou-se com o presente estudo avaliar o efeito dos n?veis de zinco org?nico (ZnO) na ra??o de frangos de corte de 1 a 42 dias, alojados em cama nova ou reutilizada. O experimento foi conduzido no setor de avicultura da Unidade Especializada em Ci?ncias Agr?rias da EAJ/UFRN. Foram utilizados 576 pintos de 1 dia da linhagem comercial Cobb, distribu?dos em delineamento inteiramente casualizado em esquema fatorial 4x2 com quatro n?veis de ZnO 0; 40; 80 e 120 ppm e dois ambientes, cama nova (CNo) e cama reutilizada (CRe), resultando em 8 tratamentos com 6 repeti??es de 12 aves. Na fase pr?-inicial houve efeito linear crescente dos n?veis de ZnO sobre o consumo de ra??o e efeito quadr?tico sobre o peso vivo e o ganho de peso. Os n?veis de 72,41 e 70,05 ppm de ZnO na ra??o de pintos melhoraram o peso vivo e o ganho de peso, respectivamente. Houve intera??o entre ZnO e o tipo de cama utilizada. O ZnO n?o afetou o desempenho das aves na fase de crescimento. Houve intera??o entre os n?veis de ZnO e o tipo de cama utilizada. Os n?veis de 61,50 e 85,30 ppm de zinco org?nico melhora a imunidade e aumenta a deposi??o de zinco na t?bia de frangos de corte aos 42 dias, respectivamente. O ZnO tamb?m aumenta a resist?ncia de pele dos frangos aos 42 dias de idade. O uso de CRe melhora o desempenho de frangos de corte de 1 a 42 dias de idade

This work deals with bio-feedback and the possibility of measuring changes in skin resistance for biofeedback. The Theoretic part is focused on the principle of biofeedback and its use. Next deals with the resistance of the skin, the changes depending on the emotions and the measurement this change . The practical part is devoted to the creation program for the use of skin resistance to change biofeedback in LabVIEW.

Ziel dieser Studie war die Messung der Symphatikusaktivität als Indikator einer Stressreaktion bei handchirurgischen Eingriffen. Zwei Gruppen á 23 Patienten (Alter [Jahre] ITN 21-76(51) axPlex 27-66(52) p=0,73; BMI ITN 18,2-40,3(26,4) axPlex 20,9-34,9(25,5) p=0,97), die sich in ultraschallgesteuerter axillärer Plexusblockade (axPlex) oder Allgemeinanästhesie (ITN) einer Operation unterziehen mussten, wurden nach Genehmigung durch die Ethikkommission untersucht. Ausschlusskriterien waren ein Alter < 18 Jahre oder > 80 Jahre, eine ASA-Klassifikation > III, sowie eine Kontraindikation gegen die verwendeten Medikamente oder Narkosenformen. Die Symphatikusaktivität wurde anhand des Hautwiderstands (ESG® 1001, Ingenieurbüro Dr.Janitzki, Altenbeken, Germany) gemessen. Die Herzfrequenz (HF), der non invasive Blutdruck und die Hauttemperatur wurden erfasst. Die Messung umfasste sieben Zeitpunkte (T-Ausgangswert, T-Narkosebeginn, T-Blutsperre, T-Schnitt, T-OP-Ende, T-Aufwachraum, T-Normalstation). Die Narkosetiefe der ITN wurde mit BIS® (40-60) überwacht. Die Analyse zeigte signifikante Unterschiede zwischen beiden Gruppen. In Bezug auf die Sympathikusaktivität konnte kein Unterschied zwischen beiden Gruppen gefunden werden.

Telemedical methods enable remote patient monitoring and healthcare at a distance. Besides, fitness tracker and sport watches are currently trending electronic products to generate awareness of health parameters in daily life. Especially, the long-term and continuous measurement of electrophysiological signals such as electrocardiogramm (ECG) becomes increasingly attractive for telemedical applications. Typically used disposable Ag/AgCl wet electrodes for good skin-electrode contact can potentially cause skin irritation and rashes. This paper presents a low cost, individual and flexible substrate for skin electrodes to be applied in future consumer electronic or professional applications. It enables an alternative contact method of the electrode to the skin by applying a pressure during the measurement and hence good contact. If no measurement is needed pressure can be released and the electrode loses skin contact. The 3D printed polymer module is 4 mm thick and comprises a pressure chamber, silver electrodes and insulation layer. The airtight printed membrane of flexible filament, which expands when inflating the chamber, may be printed in different thicknesses and shapes, much thinner than the present 4mm. This enables a high individuality for various applications. Pressure up to 150 kPa was applied and leads to dilatation of 1400 μm. First tests on skin when measuring electrodermal activity (EDA) show promising results for future applications.