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Linstad, Johanne. "Glada nyheter : En rapport om den röda gladans återkomst till Hornborgasjön och dess potentiella orsaker." Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-173287.
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The purpose of this report has been to examine reason(s) behind the return of the red kite (Milvus milvus) to Hornborgasjön (a government-protected lake situated in the southwest of Sweden). The method of the study has been mainly based on observation-data reaching back to the latter part of the 19th century and ending with the year 2018, with the emphasis on the increasing numbers of nesting red kites during the 21st century. As a part of the study, email correspondence with ornithologists, mainly from Hornborgasjön field station, was also conducted, as well as comparison with other scientific research studies on the red kite. The results indicate that the red kite was a common bird of prey in the southern part of Sweden until the mid-19th century, after which the population started to decline. The main reasons seem to be both direct and indirect persecution. As a part of this the red kite, as well as many other birds of prey, were severely affected by different kinds of biocides used in the agriculture and in the forest industry. The return of the red kite seem to be a result of three factors, firstly it became protected in the 1920th, secondly a cease of the use of the most severely effecting biocides and thirdly a conservation project that started in Skåne in the mid-1970s. As the population of red kites increased in Skåne they started to extend their population northwards and thereby made their way back to Hornborgasjön.På grund av Covid-19 hölls presentationen via zoom
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Sagulin, Gun-Britt. "Effects of calcium and calciotropic hormones on salivary gland function." Stockholm : Kongl. Carolinska Medico Chirurgiska Institutet, 1989. http://catalog.hathitrust.org/api/volumes/oclc/20620549.html.
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Enqvist, Martin. "Undersökning av lekområden för mal (Silurus glanis) i Båven." Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-114076.
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In Sweden, the Wels catfish (Silurus glanis) is a protected species and exist in only three known water systems in the country. With spawning habitats being destroyed by human activities, it is important to know more about the Swedish catfish’s reproductive behaviour and habitat preferences in order to protect the species. In this report, catfishes tagged with transmitters was tracked using radio telemetry, day and night for two weeks in Lake Båven during the spawning period. Habitat data on the depth, bottom hardness and vegetation was collected in known and potential spawning areas in the lake using an echo sounder. Habitat preference analysis indicated depth and bottom hardness as important factors when catfishes chose spawning habitat. The analysis did not indicate vegetation to be important. Habitat data from spawning positions of tagged catfishes was used to identify other sites suitable for reproduction in nearby areas. Home range during spawning was calculated for two catfishes and was found to be 1.05 and 1.35 ha. Based on this information and the identified sites suitable for spawning, the total available spawning habitat in the study area was found to be enough for 12 to 15 catfishes. This is relatively few, and indicates that additional spawning sites would benefit the population.
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Carol, Bruguera Joaquim. "Ecology of an invasive fish (Silurus glanis) in Catalan reservoirs." Doctoral thesis, Universitat de Girona, 2007. http://hdl.handle.net/10803/7870.
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L'objectiu d'aquesta tesi és aportar les primeres dades sobre l'ecologia del silur (Silurus glanis) introduït a la Península Ibèrica i estimar els seu impacte ecològic sobre la biota nativa. Es van mostrejar les comunitats de peixos de 14 embassaments catalans. El silur es troba actualment introduït a quatre conques Ibèriques: a la de l'Ebre fa uns 30 anys, a les del Ter i Tajo fa uns pocs anys i recentment al Llobregat. Hem demostrat la utilitat de comparar estadis d'invasió recents i avançats per mirar d'entendre els canvis ecològics causats per espècies invasores: les introduccions recents presenten silurs més joves, de menor mida i amb taxes de creixement superiors a les de les poblacions introduïdes anteriorment i també respecte les poblacions natives; a més, depreden majoritàriament sobre peixos, en contra de les poblacions més antigues que s'alimenten sobretot de cranc. Finalment, aportem les primeres dades publicades de telemetria del silur.The aim of this thesis is to provide the first data on the ecology of European Catfish (Silurus glanis) introduced to the Iberian Peninsula and to appraise its ecological impact on native biota. We sampled the fish assemblage of 14 Catalan reservoirs (Spain). The European catfish is nowadays introduced in four Iberian river basins: in the Ebro river basin for 30 years, in the Ter and Tajo river basin for a few years and we report the first record for the Llobregat river basin. We demonstrate the utility of comparing early and late invasion stages to understand the ecological changes caused by invasive species: recent introductions of catfish had smaller and younger catfish with growth rates higher than old and native populations and preying on fish instead of crayfish for old introductions. We also report the first published telemetry data for catfish.
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Hlekiso, Bongiwe. "Visual entanglement: Political and aesthetic connotations of Gladys Mgudlandlu’s work." University of the Western Cape, 2019. http://hdl.handle.net/11394/6653.
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Magister Artium - MAThis study focuses on how we can interpret political meanings embedded in Gladys Mgudlandlu’s work by concentrating on her landscapes, murals, and portraits during the period of the 1960s – 1980s. The core of my thesis is to question whether the artwork of Mgudlandlu was political. The thesis argues that Mgundlandlu’s talents and interventions have been overlooked and undermined. Engaging with a deep analysis of the context in which Mgudlandlu lived and worked, a visual analysis of her paintings and a discussion on the meaning of her life and work from various vantage points across time substantiates the above argument. The study engages with three fundamental approaches. Firstly it approaches Mgudlandlu’s work through how it is articulated and historicized as part of the struggle against apartheid in South Africa before 1994. Here I disrupt the idea that her work was out of touch with reality and that her work was of a naivety that isolated herself from the struggles of black people. I further argue that her work transcends the norms and expectations of black artists during this period. Her work in many ways challenges stereotypes and broke social conventions by painting landscape: something which was mostly associated with older white male artists. Thus I advocate for a reconsideration of her work by revisiting her landscape painting which carries most of the weight of my argument regarding Mgudlandlu’s political stand. My second approach is to explore the production and process of her work by concentrating on cultural workshops and their role in South African art during the apartheid period. Mgudlandlu’s creation and production process was very different from her counterparts which is explored through a careful analysis of Mgudlandlu’s paintings.
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Hughes, Shirley. "Growth history patterns in squid in assessed by gladius structure." Thesis, University of Aberdeen, 1998. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU117889.
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Increments on the internal shell, the gladius (or pen) of squids were used to investigate the growth histories of these pelagic marine animals both at the individuals level and at the population level. The gladius structure is unique because it is inextricably linked to the mantle length of the animals and provides a record of the growth of the animal at a resolution impossible to achieve with other methods. Since the technique is relatively new this thesis was concerned with the developments, validation and use of the technique for three squid species in the north-east Atlantic. The following areas were investigated: 1. The structure of the gladius and the dynamics of its deposition in hatchling and adult squid. 2. The development of gladius reading methods and the preliminary growth analysis for three species; Loligo forbesi, Allotheuthis subulata (Family Loliginidae) and Todarodes sagittatus (Family Ommastrephidae). 3. An estimate of chitin production (g m-2 yr-1) from the gladius of squid for the seas west of Scotland. 4. Maintenance of captive squid (Todarodes pacificus) to determine the periodicity of increment formation using a chemical marker, the factors driving increment formation (temperature / feeding regime) and the effects of these factors on the overall growth of animals. 5. A hypothesis of increment formation is proposed. 6. The use of techniques to examine biology and ecology of the main UK fishery species, Loligo forbesi. The differences in growth histories between sexes, population cohorts and ecological phenomena such as multiple size modes at maturity were examined. In addition, the effects of maturity stage, reason and the presence of periodic components in the data were analysed.
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Llupi, Matilda, and Rabije Qoku. "Expression of mucins in normal salivary glands and mucoepidermoid carcinoma of salivary glands." Thesis, Malmö högskola, Odontologiska fakulteten (OD), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-19760.
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Mucoepidermoid carcinom (MEC) är en malign mucin-producerande tumör som förekommer i både stora och små spottkörtlar. Syftet med denna studie var att undersöka histologiskt uttryck av muciner (MUC1, MUC4, MUC5AC, MUC5B, MUC6) i MEC för att eventuellt hitta en korrelation mellan kvalitativt mucinuttryck och tumörgrad. Tolv låg- och fem höggradiga MEC och nio normala spottkörtlar intill tumörvävnad undersöktes med hjälp av immunohistokemi där proverna utvärderades med avseende på färgningsmönster och positivitet i specifika celltyper. Normala spottkörtelceller uttryckte främst cytoplasmatiskt mucin MUC5B. MUC1 och MUC4 uttrycktes i normala spottkörtelgångsceller i ungefär hälften av proverna medan MUC5AC uttryck var sällsynt i normala spottkörtlar. MEC:ar uttryckte MUC1, MUC4, MUC5AC och MUC5B. Den apikala delen av membranet i de bägarceller som omger cystiska hålrum visade den starkaste färgningen för MUC1 och MUC4. Uttryck av MUC4 i bägarceller minskade med ökad histologisk grad. Bägarcellers uttryck av MUC5B:s i låggradig MEC var mindre intensivt än uttrycket av MUC5AC i samma celler. Högre uttryck av MUC5B jämfört med MUC5AC noterades i höggradiga tumörer. Sammanfattningsvis uttrycker MEC olika mängd av muciner än normala spottkörtlar. MUC5AC:s uttryck i MEC verkar vara en metaplastisk funktion och MUC4 tycks relatera till tumörens differentieringsgrad. Förhållandet mellan MUC5AC och MUC5B uttryck skulle kunna vara ett användbart verktyg vid diagnostisering och prognosutvärdering av MEC.Mucoepidermoid carcinomas (MECs) are malignant epithelial mucin-producing tumours encountered in both major and minor salivary glands. The aim of this study was to investigate the histological characteristics of the expression of mucins (MUC1, MUC4, MUC5AC, MUC5B, MUC6) in MECs in search for a possible correlation between qualitative mucin expression and tumour grade. Twelve low-grade, five high-grade MECs and nine normal salivary glands adjacent to tumour tissue were investigated for these mucins by immunohistochemistry. The samples were evaluated with respect to staining pattern and positivity of specific cell types. Normal acinar cells mainly expressed the cytoplasmic mucin MUC5B. MUC1 and MUC4 were expressed in normal ductal cells in approximately half of the samples whereas MUC5AC expression was rare in normal salivary glands. MECs expressed MUC1, MUC4, MUC5AC and MUC5B. The apical membrane of mucous cells lining the cystic cavities showed the strongest staining for MUC1 and MUC4. The expression of MUC4 in mucous cells decreased with increasing histological grade. Expression of salivary mucin MUC5B in mucous cells in low-grade MECs was less intense compared to the expression of MUC5AC in the same cells. In high-grade tumours, a higher expression of MUC5B compared to MUC5AC was noted. In conclusion, MECs express different mucin quantity compared to normal salivary glands. MUC5AC expression in salivary tumour tissue seems to be a metaplastic feature and MUC4 appears to be related to tumour differentiation grade. The relationship between MUC5AC and MUC5B expression could be a useful tool in the diagnosis and estimation of prognosis of MECs.
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Klenell, Simon. "Frigger tactics." Thesis, Konstfack, Keramik & Glas, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:konstfack:diva-3350.
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My work centers around the fact that I am a glassblower working with glass objects within a glasstradition. My BFA project from 2009 entitled ”the bastards have landed” was my first attempt atmapping out what that ultimately meant to me as a practitioner in a contemporary craft context. Theresult of that project was a discovery of my making as a way of using tradition to tell stories aboutitself. My conclusion was that by using the traditional objects as symbols I had a channel throughwhich I could communicate. Glass is a material who´s domains are closely connected to a domesticand consumeristic environment. It is put in a position where we react to its appearance with ourbody memory while also carries different social and material values depending on its appearance.When entering the master program at Konstfack University of Art Craft and Design, my idea wasthat over the next coming two years my focus would lie in the exploration and research of thesemechanisms as well as my own position as a maker and practitioner within these mechanisms.Craft, design and making are subjects that are constantly being talked about and analyzed from anumber of perspectives. There are philosophers, sociologists, historians and art historians constantlynegotiating what the field of craft is dealing with. This is something that I over the years have foundas something quite disturbing in some cases. This leaves me in a situation where I am no longerdefining my own practice. And when I am to define my practice I always do it through the ideas ofpeople from ”outside” my own position. There are many good writers from variousdisciplines writing about craft and making that I have had great use of and input from but I feel thatthere is a big lack of craft practitioners who are defining their discipline from their own standpoint.This situation is to me a bit outdated.So as mentioned above I have entered the master program with an idea to find out how to deal withveiled subjects such as tacit knowledge and material culture in order to try to transform them into acommunicative body of knowledge. My work during the past three semesters have been spread outover a number of different projects dealing with these subjects both based on objects as well asforming a discussion together with my master group.The main cause in this thesis is as always in my case to shed light on and to formulate questionsand hopefully answers around my own practice and its related subjects.The main reason for this is that craft and making as a tool for knowledge production is a cloudedsubject but according to me it holds a lot of potential. Not only for understanding questions outsidethe field but also to unveil and strengthen the practice itself.
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Heemsoth, Amy Marie. "Diet Composition of Swordfish, Xiphias gladius, within the Straits of Florida." NSUWorks, 2009. http://nsuworks.nova.edu/occ_stuetd/132.
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A diet study of swordfish, Xiphias gladius, was conducted in the Straits of Florida from April 2007 to December 2008. The stomachs of 131 swordfish were analyzed. Thirteen species of teleosts, three species of cephalopods, and one species of crustacean were observed in the diet. Cephalopods dominated the swordfish diet by weight (73.38%), number (69.90%), and occurrence (80.91%) and ranked highest in importance in the diet when calculating the index of relative importance (IRI). Teleosts followed by weight (25.16%), number (26.34%), occurrence (68.18%), and IRI (3,510.97). The prey species with the greatest dietary importance was Illex sp followed by unidentifiable ommastrephids. Stomach fullness index (SFI) was calculated ranging from 0 (empty stomachs) to 3.57. Additionally, correlations for juvenile male swordfish length and prey length (r²=0.647) as well as female adult swordfish weight and prey weight (r²=-0.327) were found to be significant. Overall feeding seasonality showed that swordfish primarily fed on teleosts (58%) in the spring, cephalopods (70%) in the summer, and cephalopods (75%) in the winter. When considered individually, female, male, and adult swordfish followed this pattern; however juveniles did not follow the overall feeding trend according to season. They fed regularly on cephalopods during spring (57%) and summer (61%) consuming the highest abundance of cephalopods during the winter (85%). Overall, swordfish appeared to be opportunistic feeders altering its food choices when abundance of prey may have changed or when food items were present.
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Dalzin, Fabien. "Origine tribologique du crissement d'un contact verre-élastomère : Application aux systèmes automobiles d'essuyage." Thesis, Ecully, Ecole centrale de Lyon, 2015. http://www.theses.fr/2015ECDL0019.
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Ce mémoire présente une étude expérimentale et numérique sur le crissement du contact verre/élastomère lubrifié à l’eau, avec pour application le bruit des essuie-glaces. Le crissement provient d’une vibration auto-entretenue de l’échantillon d’élastomère sur l’un de ses modes. Des expériences menées à vitesse stabilisée montrent qu’il existe trois régimes de frottement. À basses vitesses, le frottement est constant et élevé malgré le lubrifiant : c’est le régime limite. À hautes vitesses, la formation d’un film hydrodynamique assure un frottement faible. La transition a lieu à des vitesses intermédiaires où le frottement décroît fortement avec la vitesse de glissement : c’est le régime mixte. On observe que la vibration auto-entretenue n’apparaît que durant le régime mixte. Un modèle masse-ressort-amortisseur à un degré de liberté permet de rendre compte de ces observations : le système est instable lorsque la pente du coefficient de frottement avec la vitesse est négative et supérieure à un seuil relié à l’amortissement interne de l’élastomère. L’instabilité est de type stick-slip et son apparition est bien prédite quantitativement par ce critère de stabilité. Le mécanisme générant l’instabilité est donc d’origine tribologique et sa compréhension requiert un examen approfondi du contact au cours de la transition. Les observations directes du contact par microscopie montrent que le contact élastomère/verre lubrifié est hétérogène et composé d’une multitude de spots. On divise le contact en trois familles : les spots de contact sec (sans aucun film d’eau entre l’élastomère et le verre), le contact intermédiaire caractérisé par un mince film d’eau entre l’élastomère et le verre, et une zone totalement lubrifiée. On propose une loi de frottement de type additive prenant en compte la contribution de ces trois familles. La composante de frottement sec est proportionnelle à l’aire des spots secs. Une composante d’origine capillaire, causée par la présence de ponts capillaires dans le contact, est proportionnelle au périmètre du contact intermédiaire. La composante hydrodynamique est toujours négligeableThis thesis presents a study about the squeal noise induced by a lubricated elastomer/glass contact. The industrial application of this work, based on experimental and numerical approaches, is the wiper blade squeal noise. The hearing squeal noise is caused by a self-induced vibration of the elastomer sampled on one of its mode. Experiments produced for different sliding speeds reveal three regimes of friction. At low speeds, friction coefficient is constant and high : this is the boundary regime. For high speeds, the forming of an hydrodynamic film between the elastomer and the glass induces a low friction coefficient. The transition occurs for intermediate speeds for which the friction strongly decreases with the sliding speed : this is the mixed regime. One observes that the self-induced vibration is present only during the mixed regime. A model, based on a single degree-of-freedom mass-spring-damper oscillator submitted to a velocity-dependent frictional force, allows to understand these observations : the system is unstable when the variation of the friction coefficient according to the sliding velocity is negative and higher than a threshold depending on the elastomer intrinsic material damping. The instability is stick-slip kind, and its occurrence is well predicted using this stability criterion. Thus the origin of the instability is tribological and its full understanding needs the consideration of the contact evolution during the transition. Direct contact observations by microscope show that the lubricated elastomer/glass contact is heterogenous and composed of a multitude of spots. The contact is divided in three families : dry contact spots (without any lubricated water film between elastomer and glass), the intermediate contact defined by a thin film layer between elastomer and glass, and a totally lubricated zone. Using these three kinds of contact spots, an additive friction law is established. Friction component associated with dry contact depends on dry spots area. Intermediate contact generates capillary force, caused by the presence of capillary bridges in the contact. The associated force depends on the intermediate contact perimeter. The hydrodynamic component is always negligible
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Ayllón, Yares Gladys [Verfasser]. "Construyendo Nuevos Tejidos Sociales a partir de las Memorias / Gladys Ayllón Yares." Berlin : Freie Universität Berlin, 2017. http://d-nb.info/1128150530/34.
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Pimienta, Pierre. "Etude du comportement mécanique des glaces polycristallines aux faibles contraintes application aux glaces des calottes polaires /." Grenoble 2 : ANRT, 1987. http://catalogue.bnf.fr/ark:/12148/cb37608920d.
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Pimienta, Pierre. "Etude du comportement mécanique des glaces polycristallines aux faibles contraintes : applications aux glaces des calottes polaires." Grenoble 1, 1987. http://www.theses.fr/1987GRE10169.
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Slade, Richard. "Autoreductive glazes : a systematic practical exploration." Thesis, Royal College of Art, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.425297.
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Morris, Andrew Paul. "The electrophysiology of mammalian salivary glands." Thesis, University of Liverpool, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.279746.
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Bourdon, David Milon. "Serotonin receptors in mammalian salivary glands /." free to MU campus, to others for purchase, 2001. http://wwwlib.umi.com/cr/mo/fullcit?p3012950.
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Bourdon, David M. "Serotonin receptors in mammalian salivary glands." free to MU campus, to others for purchase, 2001. http://wwwlib.umi.com/cr/mo/fullcit?p3012950.
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Ali, Mahmoud Fadl. "Chemical investigations of insect exocrine glands." Thesis, Keele University, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.328532.
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Hongjiao, Ma. "The exploration of strontium isotopic analysis applied to Chinese glazes : taking southern high fired glazes as examples." Thesis, University of Nottingham, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.664292.
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By the time this thesis is finished, I will have engaged in ancient Chinese ceramic studies for six years. I would not call six years a long time, but the six years (from 24 years old to 30 years old) are probably the best years of a person's life. Now when I look back over the six years and I am really glad I spent them this way. Because six years ago I was just a young man with some obscure interest about ancient Chinese ceramics, but now I am certain that doing research about ancient Chinese ceramic is going to be the career for the rest of my life. When I finish my masters course four years ago, this idea was still not so clear in my mind. I did decent research work in my masters project, but that work did not convince me that what I did could really help to further the understanding of ancient Chinese ceramic technology. Because there is always this doubt about scientific analysis of ancient ceramics in China: can it be as helpful as archaeological excavation and historical records in terms of providing information aboutthe details of ancient ceramic making technology? I had this doubt when I came to Nottingham. Professor Henderson introduced me to Sr isotopic analysis he had been engaging in to investigate ancient glasses. After a short period of familiarization of this method and its capability, I found it could be a very interesting method to use for my PhD project and more importantly it could solve the issue has haunted me since I was working on my masters project: how to identify the flux in ancient glaze recipes by scientific analysis. I always think that identifying or suggesting the recipe for ancient ceramic production is one of the major research objectives for the scientific study of ancient ceramics, especially when there is not much relevant information you can pick up from archaeological excavation and historical records, and this research objective is even more important than determining the provenance, which is always taken as the ultimate aim for scientific study of ancient ceramics. I made an attempt to suggest of the glaze recipe of Zhangzhou export blue-and-white in my masters project by the conventional method of combined contents of Phosphorus oxide (P 20 S) and Magnesium oxide (MgO). But that attempt did not turn out very well, because I did not think my EDXRF results for P20 S was good enough and I did not think the P20 S results from a lot of other studies were good enough. If the final result had been based on the comparison of those invalid data, it would have been inaccurate or even misleading. With the helps from Professor Henderson and Professor Evans I got the chance to apply Sr isotopic analysis to Chinese high fired glaze. By studying the Sr isotopic compositions of the glazes and the raw materials, a new method of identifying the flux raw material in ancient Chinese high fired glaze has been developed. Although this is not the only success of this thesis, I am exceptionally happy with it. Because not only does it help me get rid of the issue haunting me for a long time, but also makes me convinced that scientific analysis of ancient ceramics can really bring up some new information that we cannot obtain from other resources.
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Gladic, Domagoj Augustin [Verfasser], and Heinz [Akademischer Betreuer] Heinen. "Das Dekret von Memphis. Kommentar und Auswertung. / Domagoj Augustin Gladic ; Betreuer: Heinz Heinen." Trier : Universität Trier, 2018. http://d-nb.info/1197704213/34.
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Li, Liang. "Regulation of phospholipase D in submandibular glands." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0018/NQ53062.pdf.
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Haresign, Eleanor C. "Glacio-limnological interactions at lake-calving glaciers." Thesis, University of St Andrews, 2004. http://hdl.handle.net/10023/2793.
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Iceberg calving is an efficient ablation process which introduces mechanical instability to glacier systems and can cause non-linear climatic response. This thesis uses glaciological and limnological data to examine the relative contributions of calving and melting to mass loss at glacier termini, and the interplay between glaciological and limnological processes. Calving dynamics are investigated at two lake-terminating glaciers; Glaciar Leon in Chile and Fjallsjokull in Iceland. Glaciar Leon, a temperate, grounded outlet of the North Patagonian Icefield, terminates at an active but stable calving margin in Lago Leones. The calving rate of 880 m a-1 in a mean water depth of 65 m is high for lake-calving glaciers. Detailed survey of the physical limnology of Lago Leones, important for considering heat transfer to the subaqueous ice face, revealed thermocline development towards the terminus between spring and summer. Melting at the waterline along the glacier terminus facilitates calving by undercutting the subaerial calving cliff, and accounts for around a quarter of mass loss at the terminus. Waterline melting is also an important rate-controlling process for calving at Fjallsjokull. Precise quantification of melt rates (subaerial, waterline and subaqueous) at the termini of calving glaciers is difficult and hazardous, but this study has demonstrated the value of two techniques: (1) detailed survey of melt notch growth, and (2) use of a radiocontrolled boat to record water temperatures at the ice-water interface. Continuous automated monitoring showed that lake-level fluctuations are integral to calving behaviour, influencing calving event timing and size over diurnal and hourly timescales. Fjallsjokull is sensitive to climatic forcing whereas Glaciar Leon, which exhibits larger seasonal than annual fluctuations, is less sensitive. Additional controls on calving at both sites are (1) buoyancy, (2) longitudinal stretching, and (3) the force balance at the ice-water interface. Calving operates along a continuum defined by the relative importance of interacting calving mechanisms, to which the climatic response of calving glaciers is sensitive.
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Franzén, Lars. "Effects of fractionated irradiation on salivary glands." Doctoral thesis, Umeå universitet, Onkologi, 1992. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-101770.
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The thesis is a study of the effects of radiation on the salivary glands in an experimental and a clinical study. Irradiation is a cornerstone in the management of head and neck cancer and is as other modalities of cancer treatment, afflicted with adverse reactions. An optimal radiotherapy regime is limited by the sensitivity of the normal tissues with regard to early and late effects. In certain cases the early effects can be so troublesome that it will cause interruption in the irradiation and questioning of the curative intention. Although DNA is the lethal target, other parts of the cell have been proposed as sensitive targets to irradiation. Different in vitro secretory models and quantitative morphological characterization and immunohistochemical evaluation of neuropeptides were performed in rat salivary glands after irradiation. The irradiation was given unilaterally or bilaterally once a day for a five-day schedule with 6 MV photons (total dose 20, 30, 35, 40, 45 Gy) or a two fractions regime in five days with a total dose of 24 or 32 Gy. The contralateral gland served as a control for unilaterally treated animals and parallel analyses were done 10 days or 180 days following the last irradiation dose. An early, dose-dependent effect of fractionated irradiation on noradrenaline-stimulated potassium fluxes (86Rb+ fluxes) was demonstrated. In contrast, the exocytotic amylase release displayed no obvious alterations, and morphologically no changes were seen. Regarding late effects (180 days) the noradrenaline-stimulated electrolyte secretion was decreased at least for the higher doses of irradiation. Amylase content and loss of acini was also dose-dependently decreased. At 10 days after bilateral irradiation there was a marked increase in the expression of the neuropeptides substance P, leu-enkephalin and bombesin in the ganglionic cells associated with the submandibular glands and in nerve fibers of the glandular parenchyme. In addition, a clinical prospective evaluation of 25 patients was performed before, during radiotherapy and 6, 12 and 18 months after the end of treatment. A great interindividual variation in the recovery was demonstrated with regard to salivary flow rate. Irradiation doses about 40-50 Gy caused generally reversible changes; sometimes salivary secretion was almost completely restored 6-18 months after the end of radiotherapy. Doses exceeding 65 Gy induced almost irreversible alterations. Even if DNA is the target for the lethal effect of irradiation, other constituents, such as the cell membrane or neuropeptide expression can be significantly affected by irradiation and cause important physiological changes.S. 1-43: sammanfattning, s. 47-164: 6 uppsatser
digitalisering@umu
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Sanderson, Christopher Mark. "Transport of IgA in rat salivary glands." Thesis, University of Surrey, 1986. http://epubs.surrey.ac.uk/847984/.
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Transport of polymeric immunoglobulin A (plgA) in rat salivary glands has been investigated by combined morphological and biochemical techniques in vivo and in vitro. The distribution of IgA and its cellular receptor secretory component (SC) was observed by immunoperoxidase staining of cryosections from parotid and submaxillary gland, showing serous acinar cells are the site of IgA transport into saliva. Binding of horse radish peroxidase specific IgA to parotid serous acinar cells in vitro, observed by electron microscopy, shows that only the basolateral domain of acinar cells possesses exposed SC. A combination of new cell fractionation methods and standard western blotting techniques shows that SC present on basolateral plasma membrane of parotid acinar cells has a molecular weight (mwt) >100,000 and shows a high affinity for plgA in vitro. The existence of a 73,000 mwt SC occurring with plgA in cellular fractions of parotid gland suggest cleavage of SC occurs prior to secretion. The kinetics of plgA trancytosis was studied using isolated parotid acini. Bound plgA was secreted into the incubation medium as slgA, within thirty minutes of incubation at 37°C. Secretion of plgA was initially rapid but slowed over a 2hr period of incubation at 37°C. In addition to facilitating plgA transport serous acinar cells also synthesise and secrete a diverse range of other salivary proteins which are packaged into secretion granules and secreted directly through the apical plasma membrane. It is improbable that one complex secretory pathway facilitates both bulk secretion of salivary protein and transport of plgA. Therefore secreted proteins must be selectively segregated during secretion into saliva. Secretion of proteins from acinar cells in vitro shows proteins are released at two distinct rates.
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Kesse, Mea Albert. "Glandes salivaires palatines et prothèse totale maxillaire." Nantes, 1986. http://www.theses.fr/1986NANT1554.
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Liégeois-Chauvel, Catherine. "Pathologie tumorale des glandes salivaires de l'enfant." Nantes, 1986. http://www.theses.fr/1986NANT1530.
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Ciavaglia, Elisa <1976>. "Diet of bluefin tuna (Thunnus thynnus) and swordfish (Xhipias gladius) in the Adriatic Sea." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2011. http://amsdottorato.unibo.it/3783/.
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The present issue analyses bluefin tuna (Thynnus thunnus) and swordfish (Xiphias glaudis) diet, caught by professional long-line fishing in the middle Adriatic Sea (Pomo pit). These species represent apex predators in pelagic environment that may play key roles in determining food web structure and ecosystem dynamics.
The studies about their feedings habits, based upon stomach contents analysis, are important for the comprehension of biological and ecological interaction. Over the years, many studies have been performed on the diet of tuna and swordfish in the Mediterranean Sea. This research is based on a fairly wide number of analyzed stomach contents, in comparison with the previous ones.
In this work, the analysis of 340 stomach contents of bluefin tuna caught by long-line in the central Adriatic sea confirms in general the opportunistic behaviour of this species. Finding support the hypothesis that Adriatic tuna and swordfish chase their food over a wide bathymetric zone and probably near the surface at night. No indication of food preference respect to size of predator or sample season are found. It seems that the two species are able to cohabit because their trophic niche are not overlapped, changing during the time and the vertical and horizontal space.
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West, Wendy. "Genetic stock structure and estimation of abundance of swordfish (Xiphias gladius) in South Africa." Master's thesis, University of Cape Town, 2016. http://hdl.handle.net/11427/20432.
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Targeted fishing for swordfish (Xiphias gladius) in South Africa began in the mid-1980s by recreational anglers. The recreational fishery dwindled with the near-shore resources at the onset of experimental pelagic longlining from 1997. The commercial fishery was formalised in 2005 with the issuing of 10-year long term rights to swordfish- and tuna-directed vessels. South Africa's swordfish catches reached a peak in 2002 at 1 187 t, and have been on the decline with average catches of 372 t over the last 5 years. South Africa straddles two ocean basins, the Indian and Atlantic Ocean and currently the jurisdictions of the Indian Ocean Tuna Commission (IOTC) and International Commission for the Conservation of Atlantic Tuna (ICCAT) are separated by a management boundary at 20°E. Consequently, all tunas and billfish stocks with the exception of the southern bluefin tuna (Thunnus maccoyii), are artificially divided into Atlantic and Indian Ocean stocks along this boundary, regardless of their true stock structure and distribution. Since questions remain about the origin of South African caught swordfish, it remains uncertain if the artificial split in reporting stock indices indeed reflects a biological meaningful separation of stocks. Previous recent genetics studies have confirmed genetic differentiation between the Atlantic and Indian Ocean stocks though there is no agreement on the direction of gene flow and where, or indeed if, a genetically relevant boundary exists. Eleven microsatellite loci were included in this study of the fine scale population structure of swordfish caught relatively close inshore. Despite the poor quality of the DNA samples, muscle material of 267 swordfish caught in 2005 around the entire range of South Africa's coastline was utilised. A posterior predictive map of admixture proportions produced a potential admixture zone between 14°E and 27°E. There is evidence of gene flow and migration in this area in both directions, though the evidence for weak differentiation suggests that the Indian Ocean and Atlantic Ocean contain separate stocks and that swordfish stocks coexist around South Africa but return to their ocean of origin to reproduce. Due to passive drift of larvae and active dispersal of adults that have wide environmental parameter limits that extend across this area, swordfish would be prone to admixture and genetic homogenisation.
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Dobrica, Elena. "MICROMÉTÉORITES CONCORDIA: DES NEIGES ANTARCTIQUES AUX GLACES COMÉTAIRES." Phd thesis, Université Paris Sud - Paris XI, 2010. http://tel.archives-ouvertes.fr/tel-00602286.
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Les micrométéorites antarctiques (MMAs) échantillonnent le matériel présent lors des premiers instants de la formation du système solaire. Deux nouvelles familles de MMAs, bien préservées de l'altération terrestre ont été identifiées dans la collection CONCORDIA 2006: (i) les MMAs à grain fin (FgF ¬- Fine-grained Fluffy), et (ii) les MMAs ultracarbonées (UCAMMs - Ultracarbonaceous Antarctic Micrometeorites). Les FgF présentent des caractéristiques similaires à celles des particules de poussières interplanétaires (IDPs). Les UCAMMs ont une composition exceptionnellement riche en carbone (50 à 90 vol%). Les caractéristiques des MMAs ont été comparées aux résultats récents obtenus par la mission de retour d'échantillons cométaires STARDUST. Les MMAs ont été caractérisées par des observations spectroscopiques, minéralogiques, pétrographiques et isotopiques. Le degré d'ordre structural de la matière carbonée des MMAs a été analysé par spectroscopie Raman. Les résultats montrent qu'environ 65% des MMAs contiennent une matière carbonée présentant un fort degré de désordre. Le radical nitrile a été identifié dans une UCAMM. La minéralogie des UCAMMs a été décrite par microscopie électronique à transmission, afin de mieux comprendre leur processus de formation et d'évolution. Les minéraux principaux (olivines, pyroxènes et sulfures de fer) sont généralement présents sous forme d'agrégats, rarement sous forme de minéraux isolés ou dans des objets présentant une texture ignée. Des objets similaires aux Glass with Embedded Metal and Sulphides des IDPs ont été identifiés dans une UCAMM. La matière carbonée de ces UCAMMs est très enrichie en deutérium, jusqu'à 30 fois la valeur terrestre. L'association d'une matière carbonée avec une composante minérale formée à haute température confirme la présence d'un mécanisme de transport dans le disque protoplanétaire. Les MMAs offrent une opportunité unique d'étudier le continuum astéroïde-comète.
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Engrand, Cécile. "Micrométéorites Concordia : Des Neiges Antarctiques aux Glaces Cométaires." Habilitation à diriger des recherches, Université Paris Sud - Paris XI, 2008. http://tel.archives-ouvertes.fr/tel-00549129.
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L'étude des micrométéorites CONCORDIA, collectées dans les neiges des régions centrales antarctiques, ouvre une fenêtre pour l'étude de la formation du système solaire. Les micrométéorites ont également pu jouer un rôle dans l'apparition de la vie sur Terre.
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Ter-Antonyan, Vardan. "Iontophoretic trans-dermal drug delivery through sweat glands." [Tampa, Fla.] : University of South Florida, 2005. http://purl.fcla.edu/fcla/etd/SFE0001209.
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Välimäki, Stiina. "Growth of parathyroid glands : genetic and functional aspects /." Stockholm, 2003. http://diss.kib.ki.se/2003/91-7349-704-5.
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Henshaw, C. M. "Early Islamic ceramics and glazes of Akhsiket, Uzbekistan." Thesis, University College London (University of London), 2010. http://discovery.ucl.ac.uk/19688/.
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The thesis examines the technical aspects of ceramics and glazes from Akhsiket, a regional capital in the early Islamic period, which was abandoned in the early 13th century. Ceramics and glazes of the time period under discussion (9th - 13th century) in Uzbekistan are understudied, with minimal scientific analysis of the technological processes. These processes include the forming and firing of ceramic vessels, the origin of raw materials used in ceramics and glazes, and decoration methods such as slip painting and colored glazes. A variety of commonly-seen ceramic types have been studied, giving a well-rounded picture of the ceramic assemblage at Akhsiket. Comparison between ceramics from different sites in Uzbekistan, and the development of the technology over four centuries, is possible with the use of chemical and petrographical data obtained with a variety of scientific techniques - primarily the scanning electron microscope. Contemporary glazed ceramics from Kuva and Tashkent, both in Uzbekistan, were also examined for comparison, and to shed light on the transfer of technological and artistic techniques through Central Asia. Typological analysis of Islamic ceramics shows a progression of artistic and technological knowledge from the Middle East to Central Asia during the Arab expansion in the 8th – 9th centuries. Data from chemical and petrographical analysis has shown interesting similarities and differences between ceramic pastes and glazes used at Akhsiket, Kuva and Tashkent. These analyses are used as evidence for relationships in ceramic production and technology in Uzbekistan and by comparison with published data, to ceramics further afield. Along with providing a clearer picture of ceramic production in Uzbekistan, this work provides a new dimension to the discipline of Islamic ceramic studies, demonstrating the importance of archaeological ceramics of the eastern fringes to the understanding of the production of ceramics and the transmission of knowledge and cultural traditions within the Islamic caliphate.
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Walton, Marc Sebastian. "A materials chemistry investigation of archaeological lead glazes." Thesis, University of Oxford, 2004. http://ora.ox.ac.uk/objects/uuid:eb3eb473-d434-4f45-ac78-03b6f6de3649.
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In this thesis, the fabrication technology of Roman lead glazes were examined using a number of materials science techniques: namely, electron probe microanalysis, X-ray diffraction, and inductively coupled plasma atomic emission spectroscopy. The overall aim of this work was to discern particular technological styles for a wide group of lead glazes by quantifying the chemical and microstructural features of glaze production. Using experimental replication, it was found that two basic methods of glazing could be identified chemically. When applying PbO alone to an earthenware ceramic, the resulting glaze was in equilibrium with the ceramic as indicated by flat compositional profiles obtained along the glaze cross-section. However, when applying PbO·SiO2 mixtures to earthenware ceramics, gradient profiles indicative of diffusive mass transfer were obtained from the glaze cross-section. On the basis of these chemical criteria, these two methods of glazing were identified in archaeological material. It has been determined that the earliest lead glazes from Anatolia and Italy (approximately 1st century B.C.) were made using PbO·SiO2 mixtures applied to calcareous clays with Fe and Cu oxides added as colourants. Later production (post 2nd century A.D.), seems to have employed PbO alone applied to non-calcareous clays with no intentionally added colourants. The Roman production of lead glazes was compared to both those of Late Antiquity (4th – 10th centuries A.D.) which continued to use PbO applied to non-calcareous clays, and to those of Byzantine and Islamic contexts (8th – 14th centuries A.D.) which seem to have used PbO·SiO2 mixtures applied to both calcareous and non-calcareous clays. It is also argued that the technological features of the Byzantine and Islamic glaze production shared more in common with the contemporary Chinese lead glazing tradition (the Sancai wares of the 7th century A.D.) which also used PbO·SiO2 mixtures applied to non-calcareous clays, than with the Late Antique glazing tradition.
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Benayoun, Sandra. "Glandes corticosurrénales : régulation de l'activité de l'axe corticotrope." Paris 5, 1996. http://www.theses.fr/1996PA05P048.
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Dobrică, Elena. "Micrométéorites concordia : des neiges antartiques aux glaces cométaires." Paris 11, 2010. http://www.theses.fr/2010PA112115.
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Les micrométéorites antarctiques (MMAs) échantillonnent la matière présente lors des premiers instants de la formation du système solaire. Deux nouvelles familles sont identifiées dans la collection CONCORDIA 2006, les MMAs: (i) à grain fin (FgF) présentant des caractéristiques similaires à celles des poussières interplanétaires poreuses collectées dans la stratosphère (CP-IDPs), et (ii) ultracarbonées (UCAMM) qui sont dominées par la matière carbonée. Les MMAs ont été caractérisées par des observations spectroscopiques, minéralogiques, pétrographiques et isotopiques. Ces données montrent des similarités avec les résultats obtenus sur les échantillons cométaires rapportés par la mission STARDUST. Les études par spectroscopie Raman montrent que les MMAs contiennent une matière carbonée présentant un fort degré de désordre. Le radical nitrile est identifié dans une UCAMM. La minéralogie des UCAMMs est décrite par microscopie électronique à transmission. Les minéraux sont généralement présents sous forme d'agrégats, rarement sous forme de minéraux isolés ou dans des objets présentant une texture ignée. Des objets similaires aux Glass with Embedded Metal and Sulphides des IDPs ont été identifiés dans une UCAMM. La matière carbonée de ces UCAMMs est très enrichie en deutérium, jusqu'à 30 fois la valeur terrestre. Les UCAMMs pourraient donc constituer les particules CHON identifiées dans la comète Halley. L'association de cette matière carbonée avec une composante minérale formée à haute température confirme la présence d'un mécanisme efficace de transport dans le disque protoplanétaire. Les MMAs offrent une opportunité unique d'étudier le continuum astéroïde-comèteAntarctic micrometeorites (AMMs) are large cosmic dust particles sampling the primitive matter of the solar system. Two new families of AMMs have been identified in the 2006 CONCORDIA collection: (i) Fine-grained Fluffy particles (FgF) which are similar to the chondritic porous interplanetary dust particles collected in the stratosphere (CP-IDPs); and (ii) Ultracarbonaceous Antarctic Micrometeorite (UCAMM) that are exceptionally rich in carbonaceous matter. We performed spectroscopic, mineralogical, petrographical and isotopic studies of the AMMs. The results show similarities with the characteristics of the cometary samples returned by the STARDUST mission. Raman spectroscopy analyses show AMMs contain a carbonaceous material exhibiting a high degree of disorder. The radical nitrile was identified in one UCAMM. The mineralogy of UCAMMs has been described by analytical transmission electron microscopy. The principal minerals are usually present as aggregates, and rarely as isolated minerals or objects with an igneous texture. Objects similar to GEMS (Glass with Embedded Metal and Sulphides) of IDPs have been identified in one UCAMM. The hydrogen isotopic composition of carbonaceous matter in UCAMMs exhibits large enrichments in deuterium, up to 30 times the terrestrial value. UCAMMs could represent the CHON particles identified in comet Halley. The close association between the carbonaceous matter and mineral components formed at high temperature supports the presence of efficient mixing and outward transport mechanism(s) in the protoplanetary disk. The study of AMMs represents a unique opportunity to study the primitive asteroid-comet continuum in the early solar nebula
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Vuillermet, Eric. "Caractéristiques géotechniques des argiles glacio-lacustres du Trièves." Grenoble 1, 1992. http://www.theses.fr/1992GRE10070.
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Les versants naturels dans les argiles glacio-lacustres du trieves sont frequemment affectes par des mouvements de terrain. L'objectif principal de ce travail a ete de mettre en evidence quelles caracteristiques geotechniques permettent de mieux apprehender ces phenomenes. Les investigations geophysiques restent decevantes du fait de la nature argileuse du materiau et de sa saturation. Les sondages pressiometriques semblent bien adaptes a la reconnaissance. Ils peuvent nous renseigner sur l'etat de remaniement des materiaux et nous reveler la presence de surfaces de glissement. L'anisotropie et l'heterogeneite des argiles nous procurant que des valeurs dispersees de caracteristiques mecaniques, le recours aux essais de laboratoire doit etre utilise avec prudence. Neanmoins a l'aide d'un modele de calcul, nous mettons en evidence que la connaissance des caracteristiques moyennes selon une direction parallele au plan de faiblesse et une direction le recoupant suffit a determiner le critere a la rupture. Une approche naturaliste et mecanique (auscultation et calcul de stabilite) permet de confirmer l'existence de trois types de glissement. Cette technique d'analyse a ete utilise pour etablir une carte des mouvements dans le secteur de lavars, en proposant une zonation resultant d'une analyse multicriteres
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Xie, Weiliang. "Regulators of airway submucosal glands development and functions." Diss., University of Iowa, 2012. https://ir.uiowa.edu/etd/3409.
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Tracheobronchial submucosal glands (SMGs) develop from clusters of epithelial progenitor cells basally orientated within the surface airway epithelium called primordial glandular placodes (PGPs). Signal transduction events that coordinate the transitional process from PGPs into fully developed SMGs consisting of intricately branched networks of tubular secretary structures are still poorly understood. Wnt/β-catenin dependent induction of lymphoid enhancing factor-1 (Lef-1) expression in PGP progenitor/stem cells is required for SMG formation and maturation in the airway. In an effort to better understand the regulatory mechanisms that control Lef-1 during airway SMG development, I have studied its transcriptional regulation. I discovered that Sox2 expression is predominantly confined to the surface airway epithelium (SAE) and is repressed as Lef-1 is induced within PGPs. Deletion of Sox2 in polarized primary airway epithelia significantly enhances Lef-1 mRNA expression. Consequently, my hypothesis is that Sox2 functions as a negative regulator of Lef-1 expression in the SAE. I demonstrated that Sox2 modulates the expression of Lef-1 both independent and dependent on Wnt/β-catenin signaling. I discovered that a Sox2-binding site located in the Wnt Responsive Element (WRE) region of the 2.5Kb Lef-1 promoter is required for Sox2-mediated inhibition of β-catenin-dependent Lef-1 promoter transcription. It is important to understand the biology of SMG development because SMGs are the major mucus-producing structures in the proximal airway and are important in regulating the innate immunity of the lung in response to various neural signals. SMG ducts have also been proposed as a potential protective niche for slowly cycling progenitor cells (SCPCs). Hence, aberrant SMG function is thought to aggravate the pathoprogression of lung disease. Cystic fibrosis (CF) is a disease caused by a defect in the gene that encodes a chloride ion channel called cystic fibrosis transmembrane conductance regulator (CFTR). The absence of CFTR in serous cells within SMG ducts contributes to defective airway secretion, which alters the microenvironment within SMGs. I hypothesized that the glandular SCPC niche may be dysfunctional in CF. I reported that the neural peptide, calcitonin gene-related peptide (CGRP) activates CFTR-dependent SMG secretions and that this signaling pathway is hyperactivated in CF human, pig, ferret, and mouse SMGs. CFTR-deficient mice failed to maintain glandular SCPCs following airway injury, suggesting that the glandular SCPC niche may be dysfunctional in CF. CGRP levels increase following airway injury and function as an injury-inducible mitogen that stimulates progenitor cell proliferation. However, components of the receptor for CGRP (RAMP1 and CLR) were expressed in a very small subset of SCPCs, suggesting that CGRP indirectly stimulates SCPC proliferation through paracrine mechanisms. This discovery may have important implications for injury/repair mechanisms in the CF airway.
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Kasaian, Katayoon. "Genomic analysis of head and neck endocrine glands." Thesis, University of British Columbia, 2015. http://hdl.handle.net/2429/54936.
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Discovering biomarkers and molecular drivers of head and neck endocrine tumors was the inspiration for this thesis. Here, I describe the molecular evaluation of tumors of the thyroid and parathyroid endocrine glands for the purpose of identifying somatic driver alterations in these cancers. While molecular interplay of the germline genomic background of an individual and the somatic genome that emerges throughout the lifetime plays significant roles in increasing the susceptibility to cancer and in driving the malignant phenotype, the major known contributors to cancer remain the acquired somatic mutations. Analysis of a sporadic and recurring parathyroid carcinoma, with incidence of 1 per million population, revealed mutations in mTOR, MLL2, CDKN2C and PIK3CA and comparison of patient-matched primary and recurrent malignant tumors uncovered loss of PIK3CA activating mutation during the evolution of the tumor. Loss of the short arm of chromosome 1 along with somatic missense and truncating mutations in CDKN2C and THRAP3 provided new evidence for the potential role of these as tumor suppressors. Hürthle cell thyroid carcinoma accounts for a small proportion of all thyroid cancers; however, this malignancy often presents at an advanced stage and poses unique challenges. Genomic analysis revealed large regions of copy number variation encompassing nearly the entire genomes accompanied also by near haploidization. Moreover, I identified loss-of-function mutations of the tumor suppressor gene MEN1 in 4% of patients. Repeated alterations of the epigenetic machinery in anaplastic thyroid carcinoma, one of the most fatal of all adult solid malignancies, and novel gene fusions including MKRN1-BRAF, FGFR2-OGDH and SS18-SLC5A11 are reported here. The transcriptomic analysis suggested known drug targets such as FGFRs, VEGFRs, KIT and RET to have low expressions in this cancer; however, through integrative data analysis, I identified the mTOR signaling pathway as a potential therapeutic target for anaplastic thyroid cancer. Molecular analysis of papillary thyroid carcinoma and benign thyroid nodules revealed very low mutation rates in these tumors with CYP1B1, PTPRE, CTSH and RUNX1 emerging as promising diagnostic markers. The key somatic mutations identified in these studies can serve as novel diagnostic markers as well as therapeutic targets.Science, Faculty of
Graduate
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Cross, Guy Matthew. "Radar imaging glacio-volcanic stratigraphy : Mt. Wrangell, Alaska." Thesis, University of British Columbia, 1987. http://hdl.handle.net/2429/26195.
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An airborne radar survey was conducted over the ice-filled volcanic caldera at Mt. Wrangell, Alaska. Research reported here involves computer processing and interpretation of radio-reflection data acquired over 21 traverses of the summit. In addition to describing useful data enhancement techniques, a dynamic programming approach is introduced for topographically controlled data positioning and spatial correction. Interpretation focusses upon a well defined radio-stratigraphy attributed to high acidity horizons deposited at the ice surface during periods of elevated volcanic activity. A comparative analysis of layer character indicates that echoes from the caldera floor are not continuously detected because of anomalously high signal absorption. Consequently,
results impose a lower limit upon maximum ice thickness. A numerical interpretation scheme, incorporating both glaciological measurements and empirical relations governing the behaviour of firn and ice, is developed to aid interpretation of the glacio-volcanic stratigraphy. Preliminary modelling yields a speculative volcanic record that roughly matches the known eruption sequence at Mt. Wrangell and suggests a significant extension of the volcanic history.Science, Faculty of
Earth, Ocean and Atmospheric Sciences, Department of
Graduate
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Kaufhold, Martin. "Gladius spiritualis : das päpstliche Interdickt über Deutscland in der Regierungszeit Ludwigs des Bayern 1324-1347 /." Heidelberg : Universtitätsverlag C. Winter, 1994. http://catalogue.bnf.fr/ark:/12148/cb37687478r.
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Mariotto, Gladys. "O sublime kantiano no horizonte da arte contemporânea / Gladys Mariotto ; orientador, Eladio Constantino Pablo Craia." reponame:Biblioteca Digital de Teses e Dissertações da PUC_PR, 2007. http://www.biblioteca.pucpr.br/tede/tde_busca/arquivo.php?codArquivo=1277.
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Dissertação (mestrado) - Pontifícia Universidade Católica do Paraná, Curitiba, 2007Bibliografia: f. [105]-[109]
Este estudo pretende refletir acerca da obra estética kantiana, mais especificamente abordar a noção de sublime. Parte desta reflexão tem como campo de trabalho, principalmente, as obras Observações sobre o sentimento do belo e do sublime e Crítica da fac
This study intends to reflect about the kantian aesthetic theory, more specifically an approach the notion of sublime. Part of this reflection is mainly have as works field the pieces Observation on the feeling of the beauty and sublime and Critique of ju
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Lindell, Niklas. "Habitat Preference and Activity Pattern of Wels Catfish (Silurus glanis) at its Northernmost Distribution Area." Thesis, Linköpings universitet, Institutionen för fysik, kemi och biologi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-178407.
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Knowledge of Wels Catfish (Silurus glanis) at its northernmost distribution area is limited on even basic behavioral characteristics, such as habitat preferences and activity patterns. It has thus proven difficult to aid the species in any predictable way. In a telemetry study on Wels Catfish, I examined habitat preferences, activity patters and site fidelity of ten adult individualsat their most northern range. Fish were surgically equipped with acoustic transmitters, frequently recording the position of each individual in a small Swedish lake. Wels Catfishpreferred deeper areas than randomly expected during the entire year, except for late spring and early summer. This indicates that spawning took place at shallow, vegetated areas in May-June 2019. Fish were highly active during summer, utilizing the entire lake. Behavior shifted during winter as fish became bottom dwelling with minimal activity, small home ranges and likelyminimal feeding. Wels Catfish had a nocturnal activity pattern during the entire year, but especially during summer. Fish preferred shallower areas during night than during day, indicating that deeper areas were used for resting and shallower areas for foraging. Lastly, home ranges were much larger than expected during summer, implying that S. glanis might be less territorial in small lakes than previously believed. In summary, conservation efforts should focus on protecting and restoring shallow areas with lots of vegetation and food items, adjacent to deep areas with underwater structures. These areas are important for the survival of S. glanisas they fulfill requirements for feeding, reproduction, resting, and hibernation.
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Lyon, Michael J. "Family and politics in Scotland, 1578-1596 : with particular reference to the Master of Glamis." Thesis, University of Stirling, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.445239.
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Carmody, Kathryn G. "A Principal Component Analysis of Vertical Temperature Profiles for Tracking Movements of Swordfish Xiphias gladius." NSUWorks, 2014. http://nsuworks.nova.edu/occ_stuetd/37.
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Electronic pop-up satellite archival tag (PSAT) technology has been successfully used to monitor the at-large behavior of a suite of pelagic animals, especially regarding habitat utilization. Additionally, algorithms using ambient light-level data have allowed the derivation of geolocation estimates along the duration of the deployment. However, the diel behavior of swordfish moving below the photic zone during daylight hours precludes this methodology because of the lack of ambient light-level data. To produce deployment tracks for swordfish, a mathematical model was created to analyze hydrographic temperature and pressure data recorded by PSATs. This hydrographic-based model applies Principal Component Analysis (PCA) to vertical temperature profiles in order to estimate the movement between the initial location of release and the location of the first tag transmission. PSAT data from swordfish (n=4), blue marlin (n=13), white marlin (n=2), and black marlin (n=1) were used to generate daily coordinate estimates. The marlin data provided sufficient light information to derive geolocation estimates using two light-based state space models, while the hydrographic PCA model was used to derive comparison estimates. Comparisons of the two models show an average root mean square error of 174.3 km with a standard deviation of 119 km. These results demonstrate the ability of this PCA model to extract the movement of tagged fish with consistent reasonable accuracy, within 1-2 degrees of light-based estimations. This study shows the feasibility of using temperature and depth data instead of light levels to allow effective tracking of swordfish and any species that demonstrate crepuscular diving behavior.
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Guennoun, Zohra. "Etude par spectrométrie infrarouge de la photoréactivité de dérivés acétyléniques piégés au sein de glaces d'eau ou adsorbés sur des glaces amorphes." Aix-Marseille 1, 2004. http://www.theses.fr/2004AIX11027.
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Dans le but d'étudier par spectrométrie infrarouge la photoréactivité de molécules : dicyanoacetylene, cyanoacetylene et acetylene, piégés au sein de glaces d'eau, nous nous sommes intéressés à la photochimie de ces molécules isolées puis complexées à l'eau, en matrice cryogénique de gaz rare. Les irradiations de dicyanoacetylene et de cyanoacetylene à [lambda]>120 nm, piégés en matrice d'argon, ont conduit à la caractérisation d'isomères de haute énergie : CCCNCN et CCNCH, respectivement. Ces derniers ont été identifiés à l'aide de calculs théoriques et d'expériences isotopiques. Les irradiations large bande des complexes acetylene:Eau, cyanoacetylene:Eau ([lambda]> 120nm) et dicyanoacetylene:Eau ([lambda]>235nm) ont conduit à la formation du Cétène, du Cyanocétène et du Cyanocétène complexé à HCN, respectivement. L'étude de l'adsorption du dicyanoacetylene sur une surface de glace amorphe a montré qu'il interagissait avec les OH libres de la surface, entraînant un déplacement de ce mode de vibration de 46 cm-1 vers les basses fréquences. Cette adsorption induit une restructuration de la glace créant de nouveaux sites s4, caractérisés par une bande à 3567 cm-1. Les photolyses de dicyanoacetylene et de cyanoacetylene, piégés dans des glaces d'eau, ont conduit à la formation des cétènes obtenus en matrice d'argon, ainsi qu'à celle de nouveaux composés. En effet, le 2-oxo-succinonitrile a été obtenu par réaction entre le cyanocétène et HCN. L'irradiation d'un mélange cyanoacétylène/eau, a entraîné la formation d'un énol, le 2-hydroxy-acrylonitrile ainsi que le pyruvonitrile, issu d'un réarrangement tautomérique de cet énolThe purpose of this work was to study the photoreactivity of acetylenic molecules : dicyanoacetylene, cyanoacetylene and acetylene, trapped in Eau matrices. So, we studied their photochemistry first isolated and then complexed with Eau, in cryogenic matrix. The irradiations of dicyanoacetylene and cyanoacetylene at [lambda]>120nm, trapped in argon matrix, led to the characterization of high-energy isomers: CCCNCN and CCNCH, respectively. These latter were identified by theoretical calculations and isotopic experiments. The broadband UV photolysis of the acetylene:Eau, cyanoacetylene:Eau ([lambda]>120nm) and dicyanoacetylene:Eau ([lambda]>235nm) complexes led to the formation, respectively, of Ketene, Cyanoketene and Cyanoketene:HCN complex. The adsorption of dicyanoacetylene on an amorphous ice surface put in evidence that C4N2 interacted with the dangling OH, leading to a downshift of its mode by 46 cm-1. This adsorption induces a restructuration of the ice water creating new s4 sites, characterized by an absorption band at 3567 cm-1. Irradiations of dicyanoacetylene and cyanoacetylene, in water matrices, led to the ketenes obtained in argon matrix, and also to the formation of new compounds. Indeed, the 2-oxo-succinonitrile was obtained by reaction between cyanoketene and HCN. The photolysis of a cyanoacetylene/eau mixture led to the formation of an enol, the 2-hydroxy-acrylonitrile and to the pyruvonitrile, issued by a tautomeric rearrangement of this enol
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Becher, Mike. "Kdevelop und glade - die Programme-Bauer." Universitätsbibliothek Chemnitz, 2000. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-200000187.
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Werkzeuge für Entwickler
Eine Vielzahl von kleinen Helfern erleichtert den Programmierern die Arbeit. Neben make, configure und kommandozeilenorientierte Compiler treten mächtige Entwicklungswerkzeuge, mit denen sich in Windeseile Oberflächen erstellen lassen.
In diesem Vortrag werden der allgemeine Aufbau eines Software-Projektes unter Unix erläutert und die Leistungsfähigkeit der Entwicklungs-Tools am praktischen Beispiel vorgeführt.
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Glavic, Artur [Verfasser]. "Multiferroicity in oxide thin films and heterostructures / Artur Glavic." Aachen : Hochschulbibliothek der Rheinisch-Westfälischen Technischen Hochschule Aachen, 2012. http://d-nb.info/1025883497/34.
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Molina, Giralt Glòria. "Colour and technology in historic decorated glazes and glasses." Doctoral thesis, Universitat Politècnica de Catalunya, 2014. http://hdl.handle.net/10803/144623.
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Historical decorated glass and glazed ceramics are studied with the object to determine the technology of production and to relate it with the optical properties (colour, shine, opacity). Four different case of study are investigated: production technology and replication of lead antimonate yellow glass from New Kingdom Egypt and the Roman Empire, technology of production of polychrome lustre, analyses of Syrian lustre pottery (12th–14th centuries AD) and study of color and dichroism of silver stained glasses. These different coloured glazes or glasses have in common to be produced by the presence of micro or nanoparticles embedded into the glaze which give their special optical effect. Chemical and microstructural analyses are performed using a selection of complementary Microscopic and Spectroscopic techniques that are the most adequate for the analyses of each decoration. Physical optical properties are also modeled and measured by means of UV-Vis spectroscopy. The composition and structure of the different phases formed during the processing of the decorations in historical times is obtained with the object to learn about their stability and processing conditions and to relate them to their optical properties
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Lombaert, Isabelle Madeleine Armand. "Regeneration of irradiated salivary glands by stem cell therapy." [S.l. : [Groningen : s.n.] ; University Library Groningen] [Host], 2008. http://irs.ub.rug.nl/ppn//.
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