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Dissertations / Theses on the topic 'Pedicel'

Author: Grafiati

Published: 4 June 2021

Last updated: 31 January 2023

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1

Rodrigues, Marciene Amorim. "Estudos moleculares, anat?micos e express?o g?nica de gen?tipos de bananeira contrastantes quanto ao despencamento dos frutos." Universidade Estadual de Feira de Santana, 2015. http://localhost:8080/tede/handle/tede/236.

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Submitted by Ricardo Cedraz Duque Moliterno (ricardo.moliterno@uefs.br) on 2015-10-15T01:03:28Z No. of bitstreams: 1 tese_MarcieneAmorimRodrigues.pdf: 2638970 bytes, checksum: d5ff79afee71b478fcb964476ba3b346 (MD5)<br>Made available in DSpace on 2015-10-15T01:03:28Z (GMT). No. of bitstreams: 1 tese_MarcieneAmorimRodrigues.pdf: 2638970 bytes, checksum: d5ff79afee71b478fcb964476ba3b346 (MD5) Previous issue date: 2015-08-31<br>Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES<br>The finger drop of banana is closely related to the maturation process and involves the soften

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2

Boyadjis, Melanie. "Intraoperative neurophysiological monitoring through pedicle screw stimulation." Doctoral thesis, Universitat de Barcelona, 2021. http://hdl.handle.net/10803/672359.

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OBJECTIVES: Study the interdependence between stimulus duration and stimulus strength, to observe if by changing the stimulus duration, the current threshold levels will also change during pedicle screw stimulation. Then comparing the pedicle screw threshold data to 3-Dimensional imaging to confirm the effectiveness of pedicle screw stimulation. BACKGROUND: This study examined the stimulus parameters of triggered electromyography in the operating room during posterior spinal fusions with pedicle screw fixation, and how changing stimulus duration would affect the threshold value of a pedicle s

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3

Keifer, Dorion Amanda. "Last lumbar facet and pedicle orientation in orthograde primates." [Gainesville, Fla.] : University of Florida, 2005. http://purl.fcla.edu/fcla/etd/UFE0010491.

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4

Cobeña, Ruiz Gloria Annabell. "Relação entre componentes da parede celular e atividade enzimática no pedicelo e a suscetibilidade de bananas ao despencamento natural." Universidade Federal de Viçosa, 2003. http://www.locus.ufv.br/handle/123456789/10309.

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Submitted by Reginaldo Soares de Freitas (reginaldo.freitas@ufv.br) on 2017-05-11T18:21:11Z No. of bitstreams: 1 texto completo.pdf: 507768 bytes, checksum: c1a5b4fb947ae111d0a7a14225630109 (MD5)<br>Made available in DSpace on 2017-05-11T18:21:11Z (GMT). No. of bitstreams: 1 texto completo.pdf: 507768 bytes, checksum: c1a5b4fb947ae111d0a7a14225630109 (MD5) Previous issue date: 2003-03-12<br>Programa de Modernización del Sector Agropecuario<br>Um dos maiores problemas na comercialização de bananas é o destacamento individual dos frutos das pencas, fazendo que estes percam ou diminuam seus

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5

Murray, Rebecca Anne [Verfasser], and Michael M. [Akademischer Betreuer] Morlock. "Pedicle screw fixation / Rebecca Anne Murray. Betreuer: Michael M. Morlock." Hamburg-Harburg : Universitätsbibliothek der Technischen Universität Hamburg-Harburg, 2014. http://d-nb.info/1058626175/34.

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6

Choi, Yi-king, and 蔡綺瓊. "Computer visualization techniques in surgical planning for pedicle screw insertion." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2001. http://hub.hku.hk/bib/B31224234.

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7

Murray, Rebecca Anne [Verfasser], and Michael [Akademischer Betreuer] Morlock. "Pedicle screw fixation / Rebecca Anne Murray. Betreuer: Michael M. Morlock." Hamburg-Harburg : Universitätsbibliothek der Technischen Universität Hamburg-Harburg, 2014. http://nbn-resolving.de/urn:nbn:de:gbv:830-tubdok-12861.

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8

Choi, Yi-king. "Computer visualization techniques in surgical planning for pedicle screw insertion /." Hong Kong : University of Hong Kong, 2001. http://sunzi.lib.hku.hk:8888/cgi-bin/hkuto%5Ftoc%5Fpdf?B22956475.

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9

Asadollahi, Mohammad Saeid. "Biomechanical Evaluation of Novel Expanding Pedicle Screws Suitable for OsteoporoticLumbar Spine." University of Toledo / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1449711700.

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10

Thomas, Denny G. "Rickshaw Man." Thesis, University of North Texas, 2013. https://digital.library.unt.edu/ark:/67531/metadc407779/.

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This documentary film tells the story of Mohammad in India, and Mike in the United States, who are separated by social, economic, cultural, linguistic and religious differences, and yet there is an inanimate object that connects them-the rickshaw. The film examines how rickshaw men are viewed and treated by the society they live in and also illuminates the threads of commonality between these two men to show that they are not so different from each other after all.

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11

Seyed, Vosoughi Ardalan. "Mitigating the Biomechanical Complications Following Pedicle Subtraction Osteotomy: A Finite Element Analysis." University of Toledo / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1503598742789914.

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12

Sakamoto, Takeshi. "Transpedicular screw placement evaluated by axial computed tomography of the cervical pedicle." Kyoto University, 2004. http://hdl.handle.net/2433/145277.

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13

Sakai, Yoshihito, Yukihiro Matsuyama, Hisatake Yoshihara, et al. "Simultaneous registration with CT-fluoro matching for spinal navigation surgery." Nagoya University School of Medicine, 2006. http://hdl.handle.net/2237/6132.

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14

Eshghinejad, Ahmadreza. "Finite element study of a shape memory alloy bone implant." University of Toledo / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1333726695.

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15

Bilhar, Romero Pinto de Oliveira. "Accuracy insert bolt pedicle: studyn comparing fluoroscopy and navigation in column chest of body." Universidade Federal do CearÃ, 2016. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=17745.

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CoordenaÃÃo de AperfeÃoamento de Pessoal de NÃvel Superior<br>The fixation with pedicle screw plays an important role in many spinal surgeries, providing excellent postoperative stability of the spine. It is currently the main form of instrumentation of thoracolumbar spine. The misplaced screws may cause not only a reduction in stability but, also, vascular, visceral or neurological lesions. Some methods adjuvant are used to increase the accuracy rate on the insertion of these, including intraoperative fluoroscopy and computer assisted navigation. In literature, we find studies evaluating the

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16

Shea, Thomas Michael. "Localized Expansion of Pedicle Screws for Increased Stability and Safety in the Osteoporotic Spine." Scholar Commons, 2014. https://scholarcommons.usf.edu/etd/5308.

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When a patient is diagnosed with various spinal injuries, deformities, or advanced degeneration, it is commonly suggested that he/she undergoes surgery for spinal fusion. Most current procedures in spinal fusion restrict mobility in one or multiple levels of the spine so that, over time, new bone will grow between the levels creating a single motionless unit of bone. The bilateral pedicle screw system (BPSS) has long been considered to be the "gold standard" in spinal fusion. However, for patients with osteoporosis, adequate fixation within the bone-screw interface has continuously been diffic

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17

Pereira, Marlon Cristian Toledo. "Caracterização, anatomia do pedicelo, fisiologia e redução do despencamento natural de bananas após a colheita." Universidade Federal de Viçosa, 2002. http://www.locus.ufv.br/handle/123456789/10242.

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Submitted by Reginaldo Soares de Freitas (reginaldo.freitas@ufv.br) on 2017-05-05T16:07:48Z No. of bitstreams: 1 texto completo.pdf: 1992794 bytes, checksum: cf5c10aadec76bfbab68ad2e5b4ea868 (MD5)<br>Made available in DSpace on 2017-05-05T16:07:48Z (GMT). No. of bitstreams: 1 texto completo.pdf: 1992794 bytes, checksum: cf5c10aadec76bfbab68ad2e5b4ea868 (MD5) Previous issue date: 2002-01-31<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>O despencamento natural de bananas maduras é indesejável comercialmente, pois reduz o valor de mercado da fruta, bem como a sua aceit

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18

Doulgeris, James. "Biomechanical Comparison of Titanium and Cobalt Chromium Pedicle Screw Rods in an Unstable Cadaveric Lumbar Spine." Scholar Commons, 2013. http://scholarcommons.usf.edu/etd/4812.

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Pedicle screw-rod instrumentation is considered a standard treatment for spinal instability, and titanium is the most common material for this application. Cobalt-chromium has several advantages over titanium and is generating interest in orthopedic practice. The aim of this study was to compare titanium versus cobalt-chromium rods in posterior fusion, with and without transverse connectors, through in vitro biomechanical testing and determine the optimal configuration. Six cadaveric lumbar spines (L1-S1) were used. Posterior and middle column injuries were simulated at L3-L5 and different ped

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19

Miyata, Masahiko. "Rheumatoid arthritis as a risk factor for an atlantoaxial transarticular screw and a C2 pedicle screw." Kyoto University, 2009. http://hdl.handle.net/2433/124336.

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20

Wettstein, Reto. "The effect of pedicle artery vasospasm on microhemodynamics in anatomically perfused and extended skin flap tissue /." [S.l.] : [s.n.], 2000. http://www.ub.unibe.ch/content/bibliotheken_sammlungen/sondersammlungen/dissen_bestellformular/index_ger.html.

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21

TOLEDANO, ELIE. "Neovascularisation d'un lambeau cutane expanse a pedicule monovasculaire : etude experimentale preliminaire sur le porc." Clermont-Ferrand 1, 1993. http://www.theses.fr/1993CLF1MS26.

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22

Baaj, AliA, Kamran Sattarov, Jesse Skoch, et al. "Posterior atlantoaxial fixation: A cadaveric and fluoroscopic step-by-step technical guide." MedKnow, 2015. http://hdl.handle.net/10150/621332.

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UA Open Access Publishing Fund<br>Background: Atlantoaxial surgical fixation is widely employed treatment strategy for a myriad of pathologies affecting the stability of the atlantoaxial joint. The most common technique used in adults, and in certain cases in children, involves a posterior construct with C1 lateral mass screws, and C2 pars or pedicle screws. This technical note aims to provide a step‑by‑step guide to this procedure using cadaveric and fluoroscopic images. Methods: An embalmed, human, cadaveric, specimen was used for this study. The subject did not have obvious occipital

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23

Abrahão, Fernando Alexandre. "Estudo da influência da técnica de preparação dos pedículos vertebrais na resistência ao arrancamento dos implantes." Universidade de São Paulo, 2002. http://www.teses.usp.br/teses/disponiveis/82/82131/tde-12022016-154421/.

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Foi realizado estudo experimental, utilizando-se vértebra de suínos, para o estudo da influência da técnica de perfuração do pedículo vertebral na resistência ao arrancamento dos implantes. A técnica de perfuração com broca seguida de macheamento do canal pedicular (técnica 1) foi individualmente comparada com as demais: perfuração com broca sem macheamento do canal pedicular (técnica 2), perfuração com fio de Kirschner com macheamento do canal pedicular (técnica 3), perfuração com sonda sem macheamento do canal pedicular (técnica 4). Três grupos experimentais foram utilizados de acordo com a

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24

Davis, Colin M. "Imaging analysis of morphological changes to vertebrae in adolescent idiopathic scoliosis." Thesis, Queensland University of Technology, 2017. https://eprints.qut.edu.au/105133/1/Colin_Davis_Thesis.pdf.

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This thesis employs imaging analysis using CT and MRI scans to comprehensively document the changing three-dimensional pedicle anatomy that occurs in the growing spine of adolescent idiopathic scoliosis patients and compare this to healthy control subjects. This study aims to not only provide information regarding the pathophysiology of adolescent idiopathic scoliosis but also to provide critical information to spinal surgeons operating on these spines to reduce the risk of serious complications.

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25

Hasegawa, Yukiharu, Shuhei Torii, Seiki Iwasada, Shinji Kitamura, Toshikazu Kubo, and Hisashi Iwata. "Pedicle Bone Grafting versus Transtrochanteric Rotational Osteotomyfor Idiopathic Osteonecrosis of the Femoral Head : Four Patients withBoth Procedures." 名古屋大学医学部, 1999. http://hdl.handle.net/2237/6206.

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26

Buckenmeyer, Laura. "Optimization of Pedicle Screw Depth in the Lumbar Spine: Biomechanical Characterization of Screw Stability and Pullout Strength." University of Toledo / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1365099627.

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27

Edsander-Nord, Åsa. "Pedicled and free TRAM flaps in breast reconstructions : a comparative study /." Stockholm, 2000. http://diss.kib.ki.se/2000/91-628-4360-5/.

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28

Nascimento, Anderson Luis do. "Estudo morfométrico do pedículo cervical." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/17/17142/tde-07062017-134424/.

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A inserção do parafuso pedicular cervical é um procedimento cirúrgico tecnicamente desafiador. Assim, o amplo conhecimento da morfologia das vértebras cervicais, particularmente do pedículo, é essencial para minimizar o risco de ferimentos graves a estruturas neurovasculares. O objetivo deste estudo foi conduzir uma avaliação detalhada de exames de tomografia computadorizada (TC) na população brasileira do ponto de entrada, trajetória, e dimensões dos pedículos da coluna cervical. Duzentos pacientes consecutivos foram retrospectivamente avaliados utilizando a TC da coluna cervical, com a recon

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29

Gàlvez, Montón Carolina. "Transposició d’un pedicle adipós pericardíac sobre el miocardi: una nova opció terapèutica per a limitar la cicatriu postinfart." Doctoral thesis, Universitat de Barcelona, 2012. http://hdl.handle.net/10803/108181.

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Recentment ha estat demostrada l’existència de cèl.lules progenitores en el greix que envolta el cor. Aquesta nova font cel!lular ha esdevingut una bona alternativa per a regenerar el miocardi infartat. Per aquest motiu, és possible que posant en contacte el teixit adipós cardíac en forma de biomembrana amb la zona infartada es pugui limitar l’extensió de l’infart de miocardi. Els objectius de la present tesi són: 1) Generar els perfils genètics de l’evolució de l’IM en el model porcí. 2) Determinar l’existència de cèl.lules mesenquimals al teixit adipós d’origen pericardíac i caract

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30

O'Donnell, James B. "A Biomechanical Comparison of an Interspinous Fixation Device and a Pedicle Screw and Rod System for Posterior Fixation." University of Toledo / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1271342058.

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31

Constantinescu, Dario. "Analyse et amélioration d’un modèle mécaniste de croissance et composition du fruit : Etude de la variabilité génétique des mécanismes de croissance du fruit, conception d’idéotypes et analyse des effets des transferts d’eau et de la concentration des solutés sur la croissance du fruit Model-Assisted Estimation of the Genetic Variability in Physiological Parameters Related to Tomato Fruit Growth under Contrasted Water Conditions Model-assisted analysis of the pedicel-fruit system suggests a fruit sugar uptake regulation and a water saving strategy." Thesis, Avignon, 2019. http://www.theses.fr/2019AVIG0716.

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Développer la connaissance des réponses du développement des fruits aux pratiques agricoles et aux conditions environnementales est important, depuis les sélectionneurs jusqu’aux producteurs. Cela soutiendrait la conception de pratiques agricoles permettant d’augmenter le rendement et la qualité des fruits et d’adapter la production fruitière au changement climatique, afin de satisfaire la croissance de la demande alimentaire. Le but de cette thèse était d'utiliser et d'améliorer un modèle mécaniste de croissance du fruit pour explorer la variabilité génétique de la tomate, concevoir des idéot

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32

Sandén, Bengt. "Fixation of Spinal Implants : Clinical and Experimental Studies on the Effects of Hydroxyapatite Coating." Doctoral thesis, Uppsala University, Department of Surgical Sciences, 2001. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-1422.

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<p>Loosening of implants is a frequent complication in orthopaedic surgery. The aim of this thesis was to evaluate hydroxyapatite coating of pedicle screws with mechanical and histological methods and to correlate the results with the radiological findings.</p><p>Hydroxyapatite (HA) coating of pedicle screws was investigated in experimental studies in sheep. Nine sheep were operated on with destabilising laminectomies at L2-L3 and L4-L5 and stabilised with pedicle screw instrumentations, where HA coated and uncoated screws were used in a randomised fashion. After both 6 and 12 weeks of implan

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33

Souza, Rita de Cassia Bernardes de. "Influência dos componentes de um sistema de fixação vertebral na estabilidade biomecânica." Universidade de São Paulo, 2001. http://www.teses.usp.br/teses/disponiveis/82/82131/tde-12022016-155706/.

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Com o objetivo de se estudar a estabilidade da resistência mecânica da fixação pedicular do segmento vertebral, foram realizados ensaios mecânicos de sistemas de fixação pedicular compostos por parafusos hastes, sapatas e porcas, fabricados em titânio. Os ensaios foram flexo-compressão e flexão lateral, realizados na máquina universal de ensaio com a finalidade de se avaliar a influência da estrutura dos parafusos pediculares canulados (ocos) e não canulados (maciços) e a utilização ou não das sapatas na estabilidade de fixação do sistema. Os ensaios foram realizados na fase elástica, durante

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34

Yoshida, Makoto. "Comparison of the Anatomical Risk for Vertebral Artery Injury Associated With the C2-Pedicle Screw and Atlantoaxial Transarticular Screw." Kyoto University, 2008. http://hdl.handle.net/2433/124323.

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35

KATTAN, VILLENEUVE MARIE-BERNADETTE. "A propos d'un hemangiome caverneux du foie, pedicule et volvule chez un adulte." Clermont-Ferrand 1, 1990. http://www.theses.fr/1990CLF11002.

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36

Gerhardt, Julia. "Stabilität der belasteten dorsalen Verbundinstrumentierung im humanen osteoporotischen thorakolumbalen Modell." Doctoral thesis, Universitätsbibliothek Leipzig, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-224839.

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In dieser Arbeit wird das Revisionsverhalten kanülierter, fenestrierter Pedikelschrauben evaluiert. Dies erfolgt zum einen anhand von Messungen des Drehmoments bei dem Entfernen von Pedikelschrauben aus osteoporotischen Wirbelkörpern eines Kadermodells. Hierbei werden Werte nicht zementierter und zementierter, kanülierter Pedikelschrauben erhoben, verglichen und ausgewertet. Während der Schraubenexplantation werden etwaig auftretende Rotationsbewegungen des Zements im Wirbelkörper radiografisch detektiert. Darüber hinaus wird das Revisionsverhalten kanülierter, fenestrierter Pedikelschrauben

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37

Schick, Joanne Louise. "Stress physiology of pedicel browning in sweet cherries." Thesis, 2001. http://hdl.handle.net/2429/11446.

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The overall objective of this research was to investigate the influence of some physiological stress factors on postharvest pedicel browning in sweet cherry (Prunus avium L.). While the research focused on examining the effects of stresses on stem quality; decay, pitting and soluble solids content (SSC) in the fruit were also monitored. Because PPO is a major enzyme involved in browning, PPO activity under the influence of some stress factors was also examined. Recommendations aimed at improving commercial sweet cherry quality were made as a result of this work. The use of a reflective

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38

許珍禎. "Characterization of genes involving development of abscission zone in tomato flower pedicel." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/38694298489670105575.

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碩士<br>國立嘉義大學<br>農業生物技術研究所<br>95<br>Abstract Abscission is a catabolic cell wall process that leads to the shedding of a plant organ. This process is regulated by biotic and abiotic cues. Manipulating occurrence of abscission is commercially important, for premature abscission is a major cause for low yield production for certain crops. For the majority of dicotyledon plants, abscission is initiated by the plant hormone ethylene. The hormone is perceived very specific cell within the abscission zone which has been proposed to be a class of target cells for ethylene. Hence understanding the regu

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39

Chang, Kuo-Cheng, and 張國政. "Studies on In Vitro Morphogenesis from Ovary and Pedicel Explant of Amaryllis (Hippeastrum × hybridum)." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/88981380836530315185.

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碩士<br>國立嘉義大學<br>園藝學系碩士班<br>93<br>To develop an optimal in vitro morphogenesis system the ovary and pedicel explant of Amaryllis (Hippeastrum × hybridum) ‘Hermitage’ wene used in the study. Both somatic embryogenesis and organogenesis in the presence of different concentrations of BA, TDZ and NAA, 2,4-D were obserred. Bulblet formation rate was high with α-Naphthaleneacetic acid (NAA) higher than 1.0 mgl-1 and N6-benzyladenine (BA) hight than 1.0-5.0 mgl-1. The mean highest number of bulblets was 5.3 with NAA 5.0 mgl-1 + BA 5.0 mgl-1. Somatic embryo was histologically confirmed. High embryogene

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40

Xiao, Zeyu. "Hypoxia and cell death in grape berries (Vitis vinifera L.)." Thesis, 2018. http://hdl.handle.net/2440/119782.

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Cell death in the mesocarp of berries occurs late in the ripening process, and may influence berry sensory attributes and water retention. There are cultivar-dependent correlations between mesocarp cell death and berry shrivel. Cell death is likely to be associated with yield losses of up to 30% for Shiraz due to berry shrivel, which concentrates sugars and potentially leads to high alcohol content in wine. The main objective of this thesis was to investigate the association between berry internal oxygen concentrations and berry cell death. Experiments were carried out at the Waite vineyards a

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41

Mokwatlo, Peter Noko. "Patient satisfaction in breast reduction using the medal pedicle technique versus the inferior pedicle technique." Thesis, 2018. https://hdl.handle.net/10539/29127.

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A dissertation submitted to the Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, in partial fulfillment of the requirements for the degree of Master of Medicine in Plastic and Reconstructive Surgery. Johannesburg, 2018<br>Background: Breast reduction surgery is an accepted and commonly performed procedure for addressing gigantomastia for cosmetic and functional purposes. It has been proven to have a high rate of patient satisfaction. It is a functional operation, improving quality of life in symptomatic patients. Aims: This study evaluated patients’ satisfacti

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42

Jun-XiangPeng and 彭俊翔. "Analysis of Anatomical Location of Lumbar Pedicle and Security of Pedicle Screw Insertion Using Medical Images." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/46852m.

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碩士<br>國立成功大學<br>土木工程學系<br>104<br>Pedicle screw fixation is a difficult and dangerous surgery, because the pedicle is irregular in shape and narrow in its diameter. In order to insert the screw correctly, the doctor must be very experienced and skillful. At present, this surgery still be operated in traditional way in Taiwan, it means that the doctor insert the screw by their experience. There are central nervous system and vein close to the pedicle. Once pedicle screw is inserted inappropriate and penetrates the cortical bone, it may cause damage to the nerve or vein, and it should be treated

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43

Liu, Yo-ming, and 劉又銘. "Spine pedicle path locate error assessment and spine pedicle path planning in C-arm navigation system." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/47099665573579155103.

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碩士<br>國立中央大學<br>生物醫學工程研究所<br>99<br>C-arm image assisted navigation system for orthopedic surgery has been applied clinically for several years. Pedicle screw implantation is one of the important applications. However, positioning accuracy is still lack of quantification analysis. Also, the implantation direction on the Anterior/Posterior-view image is difficult to plan. Therefore, in this research, we analyze and improve positioning errors of the C-arm assisted navigation system developed by our laboratory and establish a path planning reference on the AP image based on Digitally Reconstructed

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44

Su, Chung-wei, and 蘇崇瑋. "Optimization analysis of strenthening invasive pedicle screw." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/74164285715806385906.

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碩士<br>國立中央大學<br>機械工程研究所<br>100<br>In this aging society, spinal disease becomes one of the common human civilization diseases. Pedicle screw is a fundamental part used in spinal surgery. We lock pedicle screw into the vertebrae to provide a fixed force to offer the stability of the human spine. With the development of the invasive spine surgery, traditional pedicle screw is replaced by cannular pedicle screw in order to be used in surgery with guide pin. In this study, firstly, we use the finite elements analysis method to compare the two models’ (tradional and cannular) difference in stress.

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Chen, Yi-Long, and 陳怡龍. "The biomechanical behaviors analysis of minimally invasive percutanuous cannulated pedicle screw and cannulated-fenestrated pedicle screws in osteoporotic vertebral body." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/15896502000667477117.

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博士<br>國立陽明大學<br>生物醫學工程學系<br>104<br>Pedicle screws fixation has become one of the standard operations in lumbar spine fusion. It has been used in treatment of various diseases of lumbar spine to reestablish spinal stability. Pedicle screws fixation is considered the most stable one among posterior fixation devices. However, when it apply to patients with osteoporosis, the effect of pedicle screws fixation significantly decreased, and the risk of failure significantly increased. Many methods had been tried to resolve the problem, such as laminar hooks, sublaminar wiring and reinforce with bone c

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Chetty, Vaneshri. "The safety of the superomedial pedicle for gigantomastia." Thesis, 2016. http://hdl.handle.net/10539/22464.

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A research submitted to the Faculty of Health Sciences, University of Witwatersrand, Johannesburg, in partial fulfillment of the requirements for the degree of Master of Medicine in Plastic and Reconstructive Surgery 18 July 2016 Johannesburg<br>Introduction Breast reduction surgery in women with gigantomastia and macromastia can present as a major challenge to the plastic and reconstructive surgeon. The superomedial pedicle (SMP) technique of breast reduction has been shown to be a safe and efficacious procedure to decrease a moderate size hypertrophy of the mammary glands. A myriad

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Po-LunChen and 陳柏倫. "Biomechanical Testing of Bone Cement Anchoraged Pedicle Screw." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/81752359610131025161.

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碩士<br>國立成功大學<br>生物醫學工程學系<br>101<br>Pedicle screw instrumentation has been frequently used for reconstruction, fixation, correction and coupling decompression. For osteoporotic cancellous bone, conventional pedicle screw shows inability to provide enough screw-bone interface strength resulting in loosening or failure complications. A novel bone cement anchoraged thoracolumbar pedicle screw was design to enhance fixation strength for osteoporotic spine and simplify traditional spinal surgery procedures that includes using bone cement. The design of bone cement anchoraged thoracolumbar pedicle sc

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Lin, Zheng-wei, and 林政瑋. "Improved Pedicle Screw Design for Osteoporotic Spine Fixation." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/83830402310261625184.

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碩士<br>國立成功大學<br>醫學工程研究所碩博士班<br>96<br>Spine support body axis and provide active function. For the patients who lost spinal stability because of pathologic disease treated by pedicle screw to reduction and correction in clinical. For the osteoporotic patients, it was difficult to treat in stable effect due to lack of enough strength between pedicle screw and cancellous bone. The purpose of this research was to improve the structure of the normal pedicle screw for osteoporotic spine to increase the stability of pedicle screw and prevent loosening . Finite element method was used to analyze the b

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Hsia, Shen, and 夏笙. "CT-based navigation system for pedicle screw insertion." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/02483292586551178644.

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Chiung-Chieh, Chang, and 張炯杰. "Management of Canine Skin Defect of Omental Pedicle Flap." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/90463112321039790318.

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