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Dissertations / Theses on the topic 'Laboratory stains'

Author: Grafiati

Published: 5 June 2025

Last updated: 2 August 2025

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1

Kurt, Nour, and Jonna Sohlé. "Jämförelse mellan Grocotts manuella och automatiserade färgningsmetod." Thesis, Hälsohögskolan, Högskolan i Jönköping, HHJ, Avd. för naturvetenskap och biomedicin, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-36077.

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Grocott metoden är den känsligaste metoden för infärgning av svampstrukturer i histologisk vävnad i jämförelse med till exempel Periodic Acid-Schiff (PAS). Handhavandet av det cancerogena oxidationsmedlet kromsyra samt tidsaspekten för Grocott är signifikanta problem. Syftet med studien var att undersöka om den automatiserade färgningsmetoden för Grocott ger likvärdiga resultat som vid den manuella färgningsmetoden. Tolv preparat färgades med både den manuella och den automatiserade metoden för Grocott. Den automatiserade färgningsmetoden använder ett färdigt kit med alla ingående lösningar. V

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2

Macdonald, Emma Louise. "Laboratory studies into the development and control of extrinsic chlorhexidine stain." Thesis, University of Bristol, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.685431.

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Extrinsic staining of teeth is a common aesthetic problem for which toothpaste manufacturers strive to produce effective products to chemically and/or physically control the problem. Clinical studies proving efficacy are rare and reliance on tests in vitro are more common. The aim of these studies was to develop two in vitro models which could be used to screen and compare agents and formulations for dietary stain control. The first model utilised immobilised hydroxyapatite (RA) with tea as the chromogen. Using residual tea optical density to assess extrinsic staining proved unreliable. Tea ex

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3

Sheen, Sarah Rachel. "Laboratory and clinical studies on plaque and stain inhibition on dentures and teeth." Thesis, University of Bristol, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.392963.

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4

Zhang, Qingqing. "Amid otherworld stages." Thesis, Konstfack, Ädellab, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:konstfack:diva-6342.

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Where does the soul go after death? This question is based on my ‘fear of ghosts’ and became the starting point of my degree project, which most obviously stems from our fear of the unknown. In the age of technology, many people claim that they are atheists and think that everything has or will have a physical explanation. But the fact is that definitions of reality are always provisional. We can only have an imaginary concept of this mysterious land and open up to all possibilities of the afterlife. This project include ideas from mesmerism and use substitutes to represent paranormal ectop

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5

D'Souza, Aswin Cletus. "Automated counting of cell bodies using Nissl stained cross-sectional images." [College Station, Tex. : Texas A&M University, 2007. http://hdl.handle.net/1969.1/ETD-TAMU-2035.

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6

Goutagny, Romain. "Etude des réseaux neuronaux responsables de la régulation du sommeil paradoxal : approche pluridisciplinaire chez le rongeur." Lyon 1, 2006. http://www.theses.fr/2006LYO10105.

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L'objectif de notre étude est de mieux comprendre les réseaux neuronaux et les neurotransmetteurs impliqués dans la régulation du sommeil paradoxal (SP). Pour ce faire, nous avons opté pour une approche expérimentale pluridisciplinaire, combinant les enregistrements polysomnographiques, l'électrophysiologie, la pharmacologie et la neuroanatomie fonctionnelle. Ainsi, nous avons mis en évidence une nouvelle population neuronale impliquée dans la régulation du SP : les neurones sunthétisant l'hormone de mélano-concentration (MCH) de l'hypothalamus postérieur. De plus, nous avons montré que ces ne

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7

Hao, Gang. "Laboratory study of shear wave velocity and very small stain modulus of Macao marine clay under anisotropic stress condition." Thesis, University of Macau, 2008. http://umaclib3.umac.mo/record=b1783644.

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8

Rozmankova, Eliška. "Currently used pesticides and their mixtures : what are the risks to non-target aquatic organisms? Laboratory and in situ approaches." Thesis, Bordeaux, 2020. http://www.theses.fr/2020BORD0301.

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Les pesticides ont pour rôle de protéger les cultures des espèces nuisibles permettant ainsi d’intensifier le rendement agricole pour nourrir une population toujours en augmentation. Néanmoins, les pesticides se retrouvent souvent dans le réseau aquatique, par exemple via le ruissellement, où ils peuvent nuire aux organismes non-cibles. Les concentrations environnementales des pesticides sont souvent considérées sans risque pour les écosystèmes aquatiques, mais elles peuvent cependant induire des effets sublétaux dans les organismes exposés. De plus, les organismes ne font généralement pas fac

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9

May, Adam D. R. "Identification of fire gases in early stages of fire in laboratory scaled and full scale fire experiments." Thesis, University of Central Lancashire, 2011. http://clok.uclan.ac.uk/2823/.

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A series of reduced scale emulations of standard fires in a 2 m3 enclosure have been developed for studies at laboratory scale enabling useful comparison and correlation with full scale EN54/7 and UL268 test fires. This makes study of standard test fire conditions and products substantially more accessible. The reduced scale test fire emulations have smoke obscuration characteristics matched to the fire standards and show acceptable matching of experimental CO levels Sensor, fire detector, and analytical studies have been carried out on test fires in the 2 m3 enclosure and in a full scale test

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10

Mercier, Sarah. "Contrainte aigue͏̈ et stratégie de réponse chez le rat : comportement et sommeil." Lyon 1, 2003. http://www.theses.fr/2003LYO10050.

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L'application d'une contrainte aigue͏̈ entraîne des modifications comportementales et endocriniennes à court et moyen terme. Nous avons étudié, chez le rat, la cinétique d'apparition de ces altérations en fonction de l'intensité de la contrainte appliquée et du décours temporel séparant l'application de la contrainte et l'analyse comportementale. Vingt-quatre heures après l'exposition à la contrainte, les altérations comportementales, objectivées dans un test de conditionnement lumineux aversif, sont fonction de l'intensité du stresseur : majeures en cas de chocs électriques, modérées en cas d

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11

Eller, Leigh Anne [Verfasser], and Thomas [Akademischer Betreuer] Loescher. "Acute HIV infection in non-subtype B populations : viral dynamics, laboratory staging and early detection / Leigh Anne Eller. Betreuer: Thomas Loescher." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2014. http://d-nb.info/1075456835/34.

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12

RIVI, VERONICA. "Lymnaea stagnalis come modello per la ricerca traslazionale nell'ambito delle Neuroscienze: dallo stagno al bancone di laboratorio." Doctoral thesis, Università degli studi di Modena e Reggio Emilia, 2022. http://hdl.handle.net/11380/1273449.

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Gli alti costi in termini di gestione, tempo e lavoro legati all'uso dei mammiferi nella ricerca biomedica hanno reso sempre più urgente la necessità di individuare modelli alternativi più economici e semplici ma altrettanto efficaci. Lo scopo della mia tesi è stata la caratterizzazione della chiocciola di stagno Lymnaea stagnalis come modello per le Neuroscienze Traslazionali. Gli studi bioinformatici, molecolari e comportamentali condotti hanno dimostrato la validità e la versatilità di questo modello e hanno permesso di esaminare fenomeni finora osservati solo nei mammiferi. In particolare,

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13

Moore, Jennifer H. (Jennifer Haydon). "Noise analysis of inkjet printers over stages and quality of the job and frequency sources from equipment in laboratory optical trap room." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/54518.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, February 2009.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 20).<br>This experiment measured the level of sound emitted over the course of the print cycle by an HP inkjet printer and determined how the level varies with changes in the print quality settings and stages of the print cycle. As a test document was printed on the printer at various print quality settings and in two different environments-in a dorm room and in a laboratory chamber, a Sound Level Meter measure

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14

Björnsson, Hanna. "Comparison and optimization of May-Grunwald Giemsa and May-Grunwald Giemsa Quick Stain for morphological assessment of pleural and ascites effusions." Thesis, Uppsala universitet, Institutionen för medicinsk cellbiologi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-445869.

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Introduction: Effusion cytology can be performed for the purpose of diagnosis, treatment, and prognosis of malignant disease. A common analysis of effusion cytology samples is the May Grunwald Giemsa stain. Aim: The aim of the study was to compare May Grunwald Giemsa stain and May Grunwald Giemsa Quick Stain in order to determine the best quality stain and suggest ways to improve the current staining protocol. Materials and Methods: The methods used in this study are the routine laboratory’s standard procedures for May-Grunwald Giemsa stain and May-Grunwald Giemsa Quick Stain but with

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15

Aljabery, Firas. "Staging and tumor biological mechanisms of lymph node metastasis in invasive urinary bladder cancer." Doctoral thesis, Linköpings universitet, Institutionen för klinisk och experimentell medicin, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-137474.

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Aim: To study the possibility of detecting lymph node metastasis in locally advanced urinary bladder cancer (UBC) treated with radical cystectomy (RC) by using preoperative positron emission tomography/computed tomography (PET/CT) and peroperative sentinel node biopsy (SNB) technique. We also investigate the clinical significance of macrophage traits expression by cancer cells, M2-macrophage infiltration (MI) in tumor stroma and the immunohistochemical expression of biomarkers in cancer cells in relation to clinicopathologic data. Patients and Methods: We studied prospectively 122 patients wit

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16

Zakeri, Shahvari Saba. "Assessment and improvement of the 2019 ASHRAE Handbook model for exhaust-to-intake dilution calculations for rooftop exhaust systems (ASHRAE 1823-RP)." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1575921032418665.

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17

Vidal, Frédérique. "Régulation de l'expression génique en fonction du cycle cellulaire et contrôle de la division cellulaire durant le développement précoce de l'embryon de souris : mise en évidence de deux nouvelles interactions ADN-protéines." Nice, 1993. http://www.theses.fr/1993NICE4646.

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L'étude présentée dans la première partie de ce travail, porte sur la régulation post-transcriptionnelle d'une famille d'ARN (pIL) exprimés préférentiellement dans des fibroblastes de souris transformés ou en croissance active. Comme leurs homologues chez le rat, ces ARN contiennent une séquence répétée. Nous avons pu démontrer que le nombre des transcrits pIL est modulé par un élément de régulation composé d'une région non répétée contenant des motifs communs à tous ces ARNs et d'un élément répété. La fixation de protéines au niveau de cette séquence régulatrice a été mise en évidence par des

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18

Lebelo, Segolo Lucky. "The structure of the reproductive system in the male vervet monkey, Chlorocebus Aethiops, with special reference to spermatogenesis." Thesis, Online access, 2007. http://etd.uwc.ac.za/usrfiles/modules/etd/docs/etd_gen8Srv25Nme4_6548_1259920840.pdf.

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19

Asshleb, Almabrouk Amer. "The use of the fungus Ascochyta caulina as a biological control agent for the weed Chenopodium album : evaluation of the bioherbicide formulation efficacy of Ascochyta caulina on different life stages of the weed plant Chenopodium album under laboratory and field conditions comparing Libyan and UK populations." Thesis, University of Bradford, 2010. http://hdl.handle.net/10454/4431.

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Chenopodium album is considered one of the most important weeds adversely affecting agricultural production due to its highly competitive influence on field crops. Chemical herbicides have increased the efficiency of farming, but recently problems of herbicideresistant weed populations and herbicide residues in soil, water, food products and effects on non-target organisms have increased, consequently, other methods of control of weeds by using specific fungi as herbicides have been suggested. The purpose of this research was to evaluate the biological control of the weed Chenopodium album by

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20

Asshleb, Almabrouk A. "The use of the fungus Ascochyta caulina as a biological control agent for the weed Chenopodium album. Evaluation of the bioherbicide formulation efficacy of Ascochyta caulina on different life stages of the weed plant Chenopodium album under laboratory and field conditions comparing Libyan and UK populations." Thesis, University of Bradford, 2010. http://hdl.handle.net/10454/4431.

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Chenopodium album is considered one of the most important weeds adversely affecting agricultural production due to its highly competitive influence on field crops. Chemical herbicides have increased the efficiency of farming, but recently problems of herbicideresistant weed populations and herbicide residues in soil, water, food products and effects on non-target organisms have increased, consequently, other methods of control of weeds by using specific fungi as herbicides have been suggested. The purpose of this research was to evaluate the biological control of the weed Chenopodium alb

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21

Gasnier, Maxime. "Rôle de Dkk1 et Noggin pendant la différenciation de l'endoderme extraembryonnaire au cours du développement murin." Thesis, Clermont-Ferrand 1, 2014. http://www.theses.fr/2014CLF1MM03.

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A 3,5 jours de développement (E3.5), l'embryon de souris est composé d'une couche externe de trophectoderme (TE) entourant la cavité blastocélique et la masse cellulaire interne (MCI). La MCI comprend une population hétérogène de précurseurs d'épiblaste (Epi) et d'endoderme primitif (EPr) dans une configuration "poivre et sel". A E4.5, ces cellules ségrégent, les cellules d'EPr migrant vers la surface de la MCI pour former un épithélium. A E4.75 cet épithélium donne naissance à 2 tissus distincts : un épithélium d'endoderme viscéral (EP) et à l'endoderme pariétal (EP) qui migre le long du TE.

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22

Senkowski, Wojciech. "High-throughput screening using multicellular tumor spheroids to reveal and exploit tumor-specific vulnerabilities." Doctoral thesis, Uppsala universitet, Cancerfarmakologi och beräkningsmedicin, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-320598.

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High-throughput drug screening (HTS) in live cells is often a vital part of the preclinical anticancer drug discovery process. So far, two-dimensional (2D) monolayer cell cultures have been the most prevalent model in HTS endeavors. However, 2D cell cultures often fail to recapitulate the complex microenvironments of in vivo tumors. Monolayer cultures are highly proliferative and generally do not contain quiescent cells, thought to be one of the main reasons for the anticancer therapy failure in clinic. Thus, there is a need for in vitro cellular models that would increase predictive value of

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23

Elliott, David B., Richard J. Foster, David J. Whitaker, Andy J. Scally, and John G. Buckley. "Analysis of lower limb movement to determine the effect of manipulating the appearance of stairs to improve safety: a linked series of laboratory-based, repeated measures studies." 2015. http://hdl.handle.net/10454/8225.

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yes<br>Background: Falls on stairs are a common and dangerous problem for older people. This series of studies evaluated whether or not selected changes to the appearance of stairs could make them safer for older people to negotiate. Objectives: To determine the effect of (1) a step edge highlighter and its position and (2) an optimised horizontal–vertical (H–V) visual illusion placed on a step riser on gait safety during stair descent and ascent. Design: A series of studies using a repeated measures, laboratory-based design, investigating gait control and safety in independently mobile

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