Tesi sul tema "Ion commun"
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Masroor, Waliullah. "Coping with salinity and temperature changes : a focus on the gill response in European sea bass Dicentrarchus labrax". Thesis, Montpellier, 2019. http://www.theses.fr/2019MONTG008/document.
The European sea bass Dicentrarchus labrax undertakes seasonal migrations to estuaries and lagoons that are characterized by fluctuations in environmental conditions. It is unclear to what extent salinity acclimation mechanisms are affected at temperatures higher than in the sea, as usually encountered in transitional waters in spring and summer. In this study, juvenile sea bass were pre-acclimated to seawater (SW) at 18 °C (temperate) or 24 °C (warm) for two weeks and then transferred to either fresh water (FW) or SW at the considered temperatures. We have shown that sea bass are able to efficiently maintain blood osmolality at 24 °C at both salinities. However, temperature increase induced significant changes regarding several physiological traits related to osmoregulation, acid-base regulation, ammonia excretion and mucus production. This study showed that thermal acclimation at 24 °C affects gill morphology through gill remodeling and whole-organism ion balance. Plasma Na+ levels seemed to be particularly affected leading to decreased plasma Na+/Cl- ratio in warm conditions, suggesting a blood acidosis. Following FW transfer, the major effects observed were a lower increase in the density of branchial ionocytes and in Na+/K+-ATPase activity at 24 °C compared to 18 °C. Moreover, several key ion transporters involved in ion uptake were not transcriptionally induced following FW transfer at 24 °C. These data suggest a less effective capacity to switch from hypo-to hyper-osmoregulation after FW transfer when fish are exposed to higher temperature. At the molecular level, the temperature increase affected the expression of several branchial transporters, notably in SW. At 24 °C, higher expression of transporters linked to H+ transport might be linked to an acid-base imbalance. Moreover, the induction of ammonia-transporting channels might also indicate increased need for nitrogen excretion, potentially due to enhanced metabolism in warm conditions. Molecular chaperones HSP90 expression was strongly affected by temperature increase and to a lesser extent by salinity decrease. Finally, gill goblet cells analysis suggested that mucus production is increased in response to thermal stress. This study and additional functional studies investigating different temperature regimes provide insights on the effect of increased temperatures on fish responses and may help to predict how teleost will face the consequences of global change
Kaliszczak, Magdalena. "Polarisation chimique de l'interface liquide-liquide vers une cocristallisation contrôlée". Electronic Thesis or Diss., Université de Lorraine, 2022. http://www.theses.fr/2022LORR0332.
Controlled formation of cocrystals is an important objective in drug development. This work used the electrochemistry at interface between two immiscible liquids (ITIES) to control the formation of cocrystals. In the first part, the electrochemical behaviour of caffeine was investigated by the means of cyclic voltammetry (CV) and alternating current voltammetry (ACV). The caffeine is the hydrophilic cation thus, it transferred at highly positive potential. Transfer of caffeine (Caff) was verified at various pH and the pH 2 was chosen to be the most optimal for the cocrystals formation. The control experiment proved that 1-hydroxy-2-naphthoic (1H2N) did not transfer at ITIES. ACV provided the information about the influence of the aqueous and organic phase composition. Values have changed when CaffH+ alone, 1H2N alone and both 1H2N and CaffH+ were present in the aqueous phase. These suggest that these two molecules are interfacially active. In the third part the simultaneous measurement of potential (∆E) and current (I) variations at the ITIES, which were polarised using tetraalkylammonium cations as a common ion was reported. Various concentration ratios of tetramethyl-, tetraethyl-, and tetrapropylammonium were dissolved in both phases. Such biphasic systems were then used to verify that the interfacial potential difference measured fit the theoretical calculations. This experimental set-up was next used to probe the interfacial cocrystallisation process of hydrophilic and cationic CaffH+ with lipophilic 1H2N. The presence of caffeine in the aqueous phase led to higher current values, caused by interfacial charge transfer. Analysis of the electrochemical current noise showed a clear difference between cells in which cocrystals are formed and those in which cocrystallisation is hindered, either by a negative potential or by a change in pH. The EN method is a powerful tool to follow the changes occurring at ITIES in common ion experiments by simultaneous measurement of potential and current. In the last part, cocrystals were formed on the ITIES according to the conditions chosen by the design of experiments (DoE) method. Various factors were tested: electrolytes in the aqueous phase, various solvents and salts applying positive potential. The XRD analysis showed the conditions to obtain almost pure Phase I and almost pure phase II. Study of simultaneous ∆E and I and the interfacial tension proved that the applied potential influences the kinetics of the cocrystallization process. DoE method indicated organic salt as the factor having an active impact on cocrystallization at ITIES
Gueye-Follet, Marie-Laure. "Relations ioniques dans l'activité cambiale et la xylogénèse : approche par microscopie ionique analytique". Rouen, 1997. http://www.theses.fr/1997ROUES050.
Dey, Rabindra. "Studies on the ion-solvent interactions of tetraalkylammonium and common ions in tetrahydrofuran and its binary mixtures". Thesis, University of North Bengal, 2005. http://hdl.handle.net/123456789/773.
Roy, Mahendra Nath. "Studies on the ion-solvent interactions of some tetraalkylammonium and common ions in non-aqueous and mixed solvents". Thesis, University of North Bengal, 1993. http://hdl.handle.net/123456789/740.
Das, Bijan. "Physico - chemical investigations on the ion-solvent interactions of some Tetraalkylammonium and common ions in non-aqueous and mixed binary aqueous solvent systems". Thesis, University of North Bengal, 1992. http://hdl.handle.net/123456789/719.
Davey, Cara-Lee. "Development of an Ion Chromatography Method for the Analysis of Nitric Acid Oxidation Reactions of Common Sugars". The University of Waikato, 2008. http://hdl.handle.net/10289/2407.
Freixas, Jérémy. "Microbatteries 3D zinc-air ou comment repousser les limites des technologies lithium-ion". Thesis, Nantes, 2018. http://www.theses.fr/2018NANT4014/document.
The studies presented in the frame of this thesis are focused on zinc-air battery miniaturization, an electrochemical energy storage system that shows a higher volumetric and gravimetric energy density than the lithium-ion technology, mostly investigated in literature. The micromachining of a silicon substrate allows designing a high specific surface scaffold: 3D geometrical gain enhances the properties of charge storage for the electrodes of the microbattery. 3D microstructures exhibiting various geometrical designs have been studied: for instance, silicon micro-tubes (4,2μm outer diameter) 109 μm-depth (60:1 aspect ratio) provide a specific surface to the footprint ratio close to 70. Then, this scaffold is coated by the active materials using conformal depositions methods. This process leads to a 3D zinc metallic anode (300nm-thick) exhibiting a surface capacity of 1mAh.cm-2 in aqueous electrolyte (potassium hydroxide 0,7M). Cell voltage is 1,2V. For the first time in literature, a miniaturized air electrode has been manufactured, based on a porous microchannel network on the front side of silicon substrate, and the etching of a cavity on the back side. Once silicon wafer is micromachined, a platinum conformal thin film provides the conductive properties to the electrode while a manganese dioxide layer enhances the catalytic activity. This original concept of 3D air electrode presents a behavior similarly to a commercial one, but with a significant reduced size
Ehling-Schulz, Monika. "Physiological and protein-biochemical analysis of UV-A and UV-B tolerance of the terrestrial cyanobacterium Nostoc commune". [S.l. : s.n.], 2000. http://deposit.ddb.de/cgi-bin/dokserv?idn=960206582.
Rudolph, Wolfram W., e Gert Irmer. "Hydration and ion pair formation in common aqueous La(III) salt solutions: a Raman scattering and DFT study". Royal Society of Chemistry, 2015. https://tud.qucosa.de/id/qucosa%3A36118.
Kirmess, Kristopher Michael. "Investigation of Primary Ion Formation Mechanisms in UV-MALDI-MS Using Excited State Dynamics of Common MALDI Matrices". OpenSIUC, 2015. https://opensiuc.lib.siu.edu/dissertations/1110.
Albury, Cassie Louise. "Using whole exome sequencing and genetic association studies to investigate common and complex migraine". Thesis, Queensland University of Technology, 2018. https://eprints.qut.edu.au/122954/1/Cassie_Albury_Thesis.pdf.
Öing, Heinz. "Entwicklung eines neuen dieselmotorischen Injektorkonzeptes für zukünftige Emissionsgrenzwerte". [S.l. : s.n.], 2000. http://deposit.ddb.de/cgi-bin/dokserv?idn=960295925.
Busch, Roger. "Untersuchung von Kavitationsphänomenen in Dieseleinspritzdüsen". [S.l. : s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=962066672.
Ofner, Bernd. "Dieselmotorische Kraftstoffzerstäubung und Gemischbildung mit Common-Rail-Einspritzsystemen". [S.l. : s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=963990381.
Eisen, Sven-Michael. "Visualisierung der dieselmotorischen Verbrennung in einer schnellen Kompressionsmaschine". [S.l. : s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=969361564.
Potgieter, JH, SS Potgieter, CA Strydom e O. Gheevarhese. "The influence of various common ions on the slaking of some South African limes". Water SA, 2003. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1000887.
Naumann, Tino. "Wissensbasierte Optimierungsstrategien für elektronische Steuergeräte an Common-Rail-Dieselmotoren". [S.l.] : [s.n.], 2002. http://deposit.ddb.de/cgi-bin/dokserv?idn=965199878.
Nothnagel, Michael. "The definition of multilocus haplotype blocks and common diseases". [S.l.] : [s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=973611448.
Koch, Oliver. "Common genetic variants of the IFN-γ and IFNGR1 regions : disease associations and functional properties". Thesis, University of Oxford, 2003. http://ora.ox.ac.uk/objects/uuid:30fc15ae-13e5-4150-8093-2582334e75c0.
Tesrif, Moulay Mustapha. "La šu'ubiyya et la recherche d'un passé mythique commun dans l'adab du IIIe/IXe siècle : exemples d'al-Gahiz et d'Ibn Qutayba". Thesis, Lyon, 2017. http://www.theses.fr/2017LYSE2138.
Based on concrete examples from anti-Šu‘ūbiyya texts pulled from works of al-Ğāḥiẓ (d. 255/869) and Ibn Qutayba (d. 276/889), this thesis aims to demonstrate the pre eminence of the pre-Islamic period on the adab of the IIIe/IXe century. From a methodology which consists in a critical confrontation between these texts (especially the digitalized version of the texts), our point is to fuel the hypothesis of an adorned representation of pre-Islamic Arabia : This image produced a very important part of identical symbols of the Arab-Muslim culture, based on a mythical past in which all the Muslims without prejudice to their ancestries can find themselves."Myth" meaning the narratives of the origins created to explain data of the reality by registering them in a transcent and supernatural dimension, the symbolism of the adab places the essence of the values it is based on in the inheritance of the former Arabs. Trying to explain the world, the udabā’ made of the ğāhiliyya the source of the virtues and the cradle of the purest Arabic language. They devised new common genealogies to put forward the knowledge of the pre-Islamic Arabic traditions. Our two authors stand out the birth of the Arab-Muslim civilization in timeless narratives and in breach with the present time. Thus the non-Arabic Muslims can not refer anymore to their "historical" past and to take rather roots in a past which supports a common culture registered in a not historical time. Only this kind of blank culture, invented by our two authors, could allow the absolute beginning. Consequently, the markers of the supposed superiority could be shaken by the "anti-Šu‘ūbiyya effect" since the ethnical origin or the historical reality are not the only sense of the existence anymore
Faucher, Karine. "Le système latéral du bar, Dicentrarchus labrax, et les conséquences d'un dysfonctionnement sur son comportement : action potentielle des ions métalliques". La Rochelle, 2004. http://www.theses.fr/2004LAROS124.
The lateral system is a sensory organ found in aquatic amphibians and fish. It is used by fish for obstacle identification and localization obstacles, for moving objects (preys, predators) detection, for the detection of vibrations generated by low-frequency sound waves, for intraspecific communication (shoaling and sexual parade) and rheotaxis. The functional and morphologic integrity of this sensory system appears thus as an indispensable element for the presence and the survey of fish in an ecosystem. By its localization at the interface between the animal and the environment, and the fact that it functions via ion flux, this sensory organ, directly and constantly exposed to ambient medium, could then be the target of a natural or anthropic pollution. The aim of this study was to examine the impact of an environmental metallic pollution (and in particular, the cadmium ion) on tissues and function of the sea bass, Dicentrarchus labrax (L. ) lateral system, then to observe behavioral consequences induced on individual groups evolving in laboratory controlled conditions. A preliminary study concerning morphologic characteristics and spatial distribution of both types of neuromasts composing the sea bass lateral system was realized using scanning electron microscopy. As usually observed in teleosts, the sea bass possesses two types of neuromasts (superficial and canal ones) distributed on the head, trunk and tail. The decreasing gradient of sensory capacity, underlined from the rostral to the caudal ends of the sea bass trunk lateral line system, is really original and could be involved in the lateral system function. The major sensitivity axis of both types of neuromasts from the trunk lateral line system was identified along the fish's long axis, which confers itself a greater sensitivity of stimuli applied along its body. To reveal the behavioral consequences related to a sea bass lateral system dysfunction, both types of neuromasts were artificially damaged. For this, a double specific, efficient, reproducible and few invasive technique for fish was developed in order to alter at most this sensory system. This method combined the lateral system nerves section with an antibiotic bath. The results indicate that the fish lateral system inactivation involves a reduction of its habitat vertical exploration behavior. In contrast, the fish lateral system inactivation has no effect on the fish nocturnal demand feeding when stationary preys constitute food. A sensory compensation system leaning on olfactive system sets very quickly. The behavioral consequences of an acute exposition of sea bass to cadmium ions were then investigated. This study has shown that cadmium at high concentration in seawater (5 µg. L-1) has an inhibitory effect on the fish startle response facing a danger. This behavioral effect goes along with the destruction of both types of lateral system neuromasts observed in scanning electron microscopy. After 21 days, we notice tissue neuromast regeneration as well as fish startle response restoration. In contrast, when exposed to cadmium at the concentration of the contaminated natural environment (0,5 µg. L-1), fish startle response was not modified and neuromast tissues remain intact. However, in this study, the stimuli applied to simulate a danger to fish being of relatively high intensity, we can wonder if after an acute exposition to cadmium at 0,5 µg. L-1, the sea bass will be always able to detect the surreptitious movement of an alive moving prey. This work would earn to be pursued by studies aiming at determining the cadmium threshold concentration responsible to neuromast tissue damages and the one causing behavioral disorders. It would be also interesting to examine the synergetic effect of metallic ions present in natural environment (cadmium, cobalt, copper, lead, mercury, nickel, zinc, etc. . . ) on the sea bass lateral system and on this species behavior
Nagel, Daniel Edwin. "3DShips : rapid 3D icon generation for the Command and Control Workstation of the Future". Thesis, Monterey, California. Naval Postgraduate School, 1989. http://hdl.handle.net/10945/25645.
Pope, Matthew. "The titanium(IV) oxide photocatalysed decomposition of some common pollutants in water and the influence of metal ions on the photocatalytic process". Thesis, University of Reading, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.387774.
Bollon, Nicolas. "Étude critique de la notion de patrimoine en droit des régimes matrimoniaux et des successions". Lyon 3, 2008. https://scd-resnum.univ-lyon3.fr/in/theses/2008_in_bollon_n.pdf.
The study of the law of the matrimonial systems and the successions questions the rule of the unity of the heritage. The analysis of the substantive law reveals numerous breaches in this rule, breaches which lead all to autonomous patrimonial masses. The questioning of the rule of the unity is not new. The necessary renovation of the theory of the heritage passes by a redefining of the thesis of the "patrimoine d'affectation". It is not a question of rejecting the person outside the field of the patrimonial construction, but of restoring to her a just place and of basing the patrimonial autonomy on the affectation of the possessions. The association of the asset and the liabilities cannot constitute that the consequence of the affectation and not the criterion of the heritage. However, the affectation remains a purely subjective notion which it is necessary to move closer to the right of property. So, all the times as the affectation finds a support in the right objective of property, it is the source of an autonomous patrimonial mass. However this new approach of the theory of the heritage does not agree when we have to deal with a heritage on which several persons can claim to exercise the same privileges; what is the case of the common possessions under the legal system or the undivided possessions of a succession. It is the reason for which this theory of the affectation patrimonies also crosses by a redefining of the notion of collective property which arnounts to a pure competition of identical rights on the same good
Gellatly, Judith. "Decision-making in stepped care for common mental health problems". Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/decisionmaking-in-stepped-care-for-common-mental-health-problems(c7f8b1b3-2b2b-430a-a017-e6b9726709b1).html.
Wienhues, Anna. "Life in common : distributive ecological justice on a shared earth". Thesis, University of Manchester, 2018. https://www.research.manchester.ac.uk/portal/en/theses/life-in-common-distributive-ecological-justice-on-a-shared-earth(f61a805d-5971-441c-826a-6be449c7f95d).html.
Janneck, Monique. "Softwaregestaltung für die Gruppeninteraktion im Kontext von CSCL am Beispiel der Fallstudie CommSy /". [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=981127053.
Fiedler, Sabine. "ELF and the alternatives (Kommentar): Comments on Ian MacKenzie’s “Topic & Comment” in JELF 2014; 3(2): 395–407". De Gruyter, 2015. https://ul.qucosa.de/id/qucosa%3A31180.
Musiat, Peter. "Trait-focused internet-based prevention of common mental disorders in students". Thesis, King's College London (University of London), 2012. https://kclpure.kcl.ac.uk/portal/en/theses/traitfocused-internetbased-prevention-of-common-mental-disorders-in-students(1ceb4dc0-3ac6-4b32-b235-363c36257e9a).html.
El-Sheikh, Amr Abdelhamid Farag. "Decreased IFN-gamma message by pancreatic islet-infiltrating leukocytes is a common feature of different treatments that protect against autoimmune diabetes in the BB rat". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0025/NQ34758.pdf.
Becuwe, Audrey. "L' institutionnalisation de la gestion des compétences dans les communes françaises". Lyon 3, 2006. https://scd-resnum.univ-lyon3.fr/in/theses/2006_in_becuwe_a.pdf.
In the realm on neo-institutional theory, diffusion refers to the spread of institutional principles or practices with little modification through a population of actors (Strang and Meyer, 1993). Early institutional scholars have argued that diffusion based on institutional pressures leads to isomorphic or homogenous outcomes in populations of organizations (Mimichi and Fein, 1999; Scott 2001 for a review). DiMaggio and Powell (1983) have argued that three logics intervene in diffusion : actors adopt because they believe that it is the appropriate or legitimate way to operate; actors adopt because they face much uncertainty, do not know what to do, then imitate what those around thern; and actors adopt because they believe it is in their material interests to do so in order to garner resources from their environment. Competence Management, i. E. Literally the management of competences, can be considered as a new practice, a new rule, andor a new management technology in the field of Hurnan Resource Management, depending on one's theoretical preferences (Scott, 2001 : chapter 4: 71 and following). It has been viewed as a route to better management, and is but one component of the so-called New Public Management (NPM). Starting in the mid-1980s, a reforrn movement to change publiosector management practices, now known as New Public Management (NPM), took roots in many OECD countries (Hood, 1990, 1995). NPM emphasizes economy, eficiency and effectiveness of public services. The focus shifis from policy making to management, especially to generic management skills, and from process accountability to accountability based on results (Osborne and Gaebler, 1992). Public organizations would become more effective if their organizational and managerial processes were inspired by private organizations. Therefore, what public organizations actually imitate are rationalized myths, i. E. Stories constructed by actors of exemplary organizations. Public Management is essentially dialectic, and competing values and paradox affect organizations. We study examines the influence of institutional pressures on Human Resource Practices in public organizations. We develop and test institutional mechanisms that support non-isomorphic change, i. E. Increased institutional variety in HR practices. Specifically, we examine several determinants of variety increase in the competence management of French Large Municipalities : the managerial values of chief human resource executives (CHRE) or chief administrators (Le. Competence management perception), and institutional factors. To account for heterogeneity, we use one dependent variable that measures the degree of adoption (i. E. Intensity) of Competence Management by Municipalities. Empirical results support the view of institutionalization as variety increase
Qadir, F. "Gender disadvantage as a risk factor for common mental disorder in women residing in Rawalpindi/Islamabad". Thesis, King's College London (University of London), 2005. https://kclpure.kcl.ac.uk/portal/en/theses/gender-disadvantage-as-a-risk-factor-for-common-mental-disorder-in-women-residing-in-rawalpindiislamabad(3a806ea8-69a6-4461-a595-3ef8198df6a8).html.
Medhin, Tesfay Girmay. "Modelling the effect of common mental disorders on child growth in Butajira, Ethiopia". Thesis, King's College London (University of London), 2012. https://kclpure.kcl.ac.uk/portal/en/theses/modelling-the-effect-of-common-mental-disorders-on-child-growth-in-butajira-ethiopia(400d1ebc-cd49-4b0d-8f84-25127d376d04).html.
Ghio, Daniela. "Illness perceptions in adolescents with juvenile arthritis : applying the common sense self-regulatory model". Thesis, University of Manchester, 2016. https://www.research.manchester.ac.uk/portal/en/theses/illness-perceptions-in-adolescents-with-juvenile-arthritis-applying-the-common-sense-selfregulatory-model(ec4d78b7-1cdd-463d-9861-1da30d5a72ed).html.
Charles, Kelvin. "The common in Hardt and Negri : substantiating the concept through its urban, digital and political moments". Thesis, University of Manchester, 2018. https://www.research.manchester.ac.uk/portal/en/theses/the-common-in-hardt-and-negri-substantiating-the-concept-through-its-urban-digital-and-political-moments(fc091265-6fb3-43cf-99f4-6bc0510a8bdb).html.
Jaber, Maysaa Husam. "Sirens in command: the criminal femme fatale in American hardboiled crime fiction". Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/sirens-in-command-the-criminal-femme-fatale-in-american-hardboiled-crime-fiction(a6a35b81-665e-4f1a-9f3c-a8c286fe3796).html.
Braunholtz-Speight, Timothy Herford. "Power and community in Scottish community land initiatives". Thesis, University of the Highlands and Islands, 2015. https://pure.uhi.ac.uk/portal/en/studentthesis/power-and-community-in-scottish-community-land-initiatives(7670cf12-6c48-41ef-8bdd-a5aac301873b).html.
Foster, Christopher. "Communal participation in the spirit : the Corinthian Correspondence in light of early Jewish mysticism in the Dead Sea Scrolls". Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/communal-participation-in-the-spirit-the-corinthian-correspondence-in-light-of-early-jewish-mysticism-in-the-dead-sea-scrolls(a312d7dd-978c-40c7-9a58-b74fbe580ea1).html.
Thorneloe, Rachael Jane. "Investigating medication adherence in psoriasis : exploring the role of illness perceptions, medication beliefs, and emotional distress". Thesis, University of Manchester, 2014. https://www.research.manchester.ac.uk/portal/en/theses/investigating-medication-adherence-in-psoriasis-exploring-the-role-of-illness-perceptions-medication-beliefs-and-emotional-distress(758e5322-438d-4806-bd2c-84e39c6477dd).html.
Aseem, Saadia. "Development and evaluation of a psychosocial intervention for common mental disorders for the British South Asians in the UK". Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/development-and-evaluation-of-a-psychosocial-intervention-for-common-mental-disorders-for-the-british-south-asians-in-the-uk(3ac9b949-8a1e-4453-8928-1b0975add315).html.
Erfmeier, Alexandra. "Ursachen des Invasionserfolges von Rhododendron ponticum L. auf den Britischen Inseln Einfluss von Habitat und Genotyp /". Doctoral thesis, [S.l. : s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=975033476.
Dornhege, Guido. "Increasing information transfer rates for brain-computer interfacing". Phd thesis, [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=98051276X.
Spiegl, Steven. "Communal responses to socio-economic problems in Italy and Gaul, 31 BC - AD 284". Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/communal-responses-to-socioeconomic-problems-in-italy-and-gaul-31-bc--ad-284(4437edaa-53fa-4a57-8897-879bec4747b6).html.
Contin, Giacomo. "The Silicon Strip Detector (SSD) for the ALICE experiment at LHC: construction, characterization and charged particles multiplicity studies". Doctoral thesis, Università degli studi di Trieste, 2009. http://hdl.handle.net/10077/3070.
La presente tesi descrive le attivita' di ricerca legate alla costruzione, la caratterizzazione e la validazione del rivelatore a micro-strisce di silicio (SSD) per il sistema di tracciamento dell'esperimento ALICE presso il collisionatore LHC al CERN. Nel primo capitolo della tesi si introduce la fisica delle collisioni fra ioni pesanti e si descrivono le principali osservabili che saranno utilizzate dall'esperimento ALICE per studiare la formazione e la successiva evoluzione del Plasma di Quark e Gluoni. Nel secondo capitolo e' presentata una descrizione del rivelatore di ALICE e sono discusse in particolare le caratteristiche del sistema di tracciamento, di cui l'SSD e' parte integrante, e le sue prestazioni in relazione alla fisica di ALICE. La terza parte della tesi riguarda le attivita' correlate alla costruzione e alla caratterizzazione dell'SSD: dopo la produzione e i test di accettazione, e' stata condotta un'indagine estensiva ed approfondita sui moduli difettosi, al fine di comprendere l'origine delle problematiche riscontrate e di elaborare soluzioni appropriate. Il lavoro effettuato ha permesso di recuperare numerosi moduli e di innalzare la qualita' globale del rivelatore. Dopo le operazioni di assemblaggio, il rivelatore nella configurazione finale e' stato completamente caratterizzato prima dell'installazione nel sito sperimentale. Una volta installato, le funzionalita' dell'SSD e la sua integrazione in ALICE sono state infine verificate durante la fase di commissioning, attraverso un elevato numero di acquisizioni di dati di rumore e di raggi cosmici. La caratterizzazione del rivelatore completo ha dimostrato l'importanza di un' efficace correzione hardware del common mode per l'efficienza e la qualita' globali dell'SSD. A tal fine, gli effetti di questa particolare fonte di rumore sono stati studiati attraverso una serie di simulazioni. I risultati di questo studio sono presentati nel quarto capitolo della tesi e due algoritmi sono proposti per un efficiente trattamento e reiezione del rumore di common mode. Infine, nell'ultimo capitolo viene descritto uno studio di fattibilita' della misura della molteplicita' di particelle cariche con l'SSD. In vista della prima fase di acquisizione dati dell'esperimento ALICE, e' stato simulato un campione di eventi protone-protone a 900 GeV di energia; l'efficienza di ricostruzione dei segnali di particella e' stata studiata e misurata in funzione delle caratteristiche funzionali del detector. Infine, la correlazione tra i segnali ricostruiti nell'SSD e le osservabili fisiche simulate dal Monte Carlo e' stata usata per caratterizzare l'interazione primaria.
The present thesis is focused on the construction, characterization and performance assessment of the Silicon Strip Detector (SSD) for the tracking system of the ALICE experiment at LHC. The first part introduces to the physics of heavy ions collisions and describes the main observables which are going to be studied with the ALICE detector as possible signatures of the onset of the Quark Gluon Plasma phase transition. A description of the ALICE detector is presented in the second chapter, with particular emphasis on the tracking system, where the SSD plays an important role, and on its performances related to the ALICE physics topics. The third part of the thesis deals with the activities related to the construction and characterization of the SSD: after the production and the acceptance tests, an extensive work was performed on the malfunctioning modules, in order to find out the origin of several defects and to develop proper solutions. Their application allowed to recover a fair number of modules and to enhance the global quality of the SSD. After the assembling operations, a complete characterization of the detector in the final configuration was performed before its installation in the experimental site. Once installed, it was tested and characterized during the commissioning phase, through a large set of noise and cosmic rays data acquisitions. The characterization showed the relevance of a proper hardware common mode correction for the efficiency and overall quality of the SSD. In order to improve the SSD data quality, the effects of this particular source of noise were studied with a set of simulations. The results are presented in the fourth part of the present thesis; in addition, two different algorithms for an efficient common mode noise treatment and rejection are proposed. In the last part of the thesis, the feasibility of a charged particles multiplicity measurement with the SSD was explored. In view of the first data taking phase of the ALICE experiment, a 900 GeV proton-proton collisions sample was simulated, and the particles signals reconstruction efficiency was studied and measured as a function of the SSD quality, represented by the number of properly operating channels and their noise characteristics. Finally, the correlation between SSD reconstructed signals and the Monte Carlo simulated physical observables was used to characterize the primary interactions.
XXI Ciclo
1978
Grams, Michael. "Analyse der EU-Milchmarktpolitik bei Unsicherheit". Doctoral thesis, [S.l. : s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=97252942X.
Triscott, Nicola. "Art and intervention in the stewardship of the planetary commons : towards a curatorial model of co-inquiry". Thesis, University of Westminster, 2017. https://westminsterresearch.westminster.ac.uk/item/q3677/art-and-intervention-in-the-stewardship-of-the-planetary-commons-towards-a-curatorial-model-of-co-inquiry.
Ahmed, Kabir. "Shariah principles for Islamic capital markets and the regulation of market abuse in UK and the US : common grounds, divergences and proposal for reform". Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/shariah-principles-for-islamic-capital-markets-and-the-regulation-of-market-abuse-in-uk-and-the-us-common-grounds-divergences-and-proposal-for-reform(90e750ff-4819-4b9f-bceb-a96c86e2e4c1).html.
Easton, Katherine Anne. "An investigation into the nature, prevalence and severity of anxiety in heart failure patients : the association between anxiety and patient health outcomes". Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/an-investigation-into-the-nature-prevalence-and-severity-of-anxiety-in-heart-failure-patients-the-association-between-anxiety-and-patient-health-outcomes(3c2ebad9-0418-4cec-b4a6-d17784043c85).html.
Ellis, Eloise Elizabeth Catherine. "The working and impact of the House of Commons Political and Constitutional Reform Committee in the 2010-15 Parliament". Thesis, King's College London (University of London), 2018. https://kclpure.kcl.ac.uk/portal/en/theses/the-working-and-impact-of-the-house-of-commons-political-and-constitutional-reform-committee-in-the-201015-parliament(9fd9392c-013a-4f25-a34f-e5a66dac53ad).html.