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1
Ducrocq, Gabriel. "Bayesian algorithms in high dimension, application to cosmology." Electronic Thesis or Diss., Institut polytechnique de Paris, 2022. http://www.theses.fr/2022IPPAG001.
Abstract:
Une très faible lumière nous parvient depuis le ciel. Celle-ci n'est pas uniformément répartie sur la carte du ciel mais présente des anistropies. En analysant ces anistropies, nous pouvons déduire son spectre de puissance, ce qui nous permet de déduire les paramètres de l'univers. En supposant que le modèle statistique de génération de ces anistropies soit un modèle hiéarchique linéaire Gaussien et en ajoutant une distribution a priori sur les paramètres, nous pouvons faire de l'inférence Bayésienne sur ces paramètres. Ceci nous permet d'avoir non pas seulement un estimateur ponctuel des paramètres mais aussi des barres d'erreur sur ces quantités. Afin de mener à bien cette inférence, nous reprenons et développons l'échantillonneur de Gibbs utilisé jusque là dans la littérature sur l'analyse du fond diffus cosmologique. Nous proposons un moyen de raccourcir le temps de résolution d'un système en très grande dimension tout en gardant la distribution cible invariante. Nous proposons également un algorithme basé sur une variable auxiliaire pour contourner cette résolution. Finalement, en présentant les paramétrisations centrée et non centrée, nous utilisons une stratégie d'interweaving afin d'avoir un algorithme mélangeant bien sur l'ensemble du ratio signal sur bruit.Le second projet concerne la compression des chaînes de MCMC. Sous-échantillonner une chaîne de Markov augmente toujours la variance asymptotique de l'estimateur obtenu. Nous voulons donc garder les points les plus représentatifs afin que cette variance asymptotique n'augmente pas trop. En utilisant une méthode d'échantillonnage pour des sondages et des "control variates", nous proposons une méthode en deux étapes afin de ne garder les points les plus représentatifs de la loi cible parmi une chaîne de MCMC: d'abord, nous utilisons des control-variates afin d'obtenir un estimateur s'écrivant comme une somme pondérée de la chaîne initiale. Ensuite, nous utilisons la méthode du cube afin de sous-échantillonner la chaîne pondérée obtenue à l'étape précédente. Nous proposons une façon de gérer les poids négatifs que la première étape peut donner. Nous proposons également deux façons d'avoir des control-variates: l'une, basée sur le "Stein trick" et la seconde, basée sur les control-variates de Gibbs. Ainsi, notre méthode ne nécessite pas la fonction de scoreWe receive a faint light from the sky. This light is not uniform on the map of the sky but presents anisotropies. From these anisotropies, we can deduce its power spectrum, which in turn allows us to determine the cosmological parameters of the universe. Assuming the statistical model generating the sky map is a hierarchical linear Gaussian model and adding a prior distribution on the parameters, we can make Bayesian inference on these parameters. This allows us not only to have point estimates of the parameters, but also error bars on these quantities. In order to make this inference, we further develop the usual Gibbs sampler used in the CMB data analysis literature. We propose a way to shorten the resolution of a very high dimensional system while keeping the target distribution invariant. We also offer an algorithm based on an auxiliary variable to get around this resolution. Finally, using the concepts of centered and non centered parametrization, we use an interweaving strategy to have good mixing properties on the entire signal-to-noise ratio range.The second project regards the compression of MCMC chains. Subsampling a Markov chain always increases the asymptotic variance of the resulting estimator. Hence we want to keep the points that are the most representative so that this variance does not increase too much. Using a survey sampling method and control variates, we propose a two steps procedure to keep the points that are the most representative of the target distribution out of a MCMC chain: first, we use control-variates in order to get an estimator which writes as a weighted sum of the chain. Then, we use the cube method to subsample the weighted chain we got at the end of the first step. We propose a way to deal with negative weights arising at the first step, which are incompatible with the cube method. We also provide two ways to build control-variates: one based on the Stein trick and the other one based on the Gibbs control variates. Hence, our method does not necessitate the availability of the score function
2
Rudland, Sophie. "Faith, feeling and gender in the writing of Hartley, Wollstonecraft and Blake." Thesis, University of Warwick, 2013. http://wrap.warwick.ac.uk/62035/.
Abstract:
This thesis examines David Hartley’s Observations on Man (1749) and elucidates how Hartley’s mechanical approach to mind, his conception of emotion, and the religious status he awards the body were newly relevant after 1791. In this way it identifies a ‘Hartlean culture’ within the Romantic period and seeks to explore how such an intellectual climate influenced the radical writers William Blake (1757–1827) and Mary Wollstonecraft (1759–1797). Blake and Wollstonecraft were acquainted with the famous bookseller Joseph Johnson, who republished Observations on Man in various forms and versions between 1775 and 1801. They also had an association with Johnson’s circle; the Hartlean concepts found throughout their work evidence Hartley’s latent popularity within intellectual culture, as well as the writers’ engagement with contemporary philosophical ideas. I propose that the renewed curiosity in Hartley during the 1790s reveals a specific religious and revolutionary culture wherein non-conformist views about Christianity and new ideas about the body, emotion and women flourished. Such a cultural moment renders Hartley a particularly important figure for debate since he integrated progressive values about equality and faith alongside advancing understanding of anatomy and mind. Hartley identified how God and happiness could be found physically within each person. He did this by combining a complex theory of vibrations and theory of association, where the body and mind functioned mechanically through a person’s feelings of pleasure and pain. These feelings manifested as physical vibrations and eventually led every person to desire goodness until finally, they can become ‘Godlike’ themselves. Hartley’s amalgamation of Christian and new theoretical concepts appealed to Blake and Wollstonecraft, and was much unlike the approach of Joseph Priestley who abridged Observations in 1775 to promote a wholly ‘scientific’ text. In this way, we can see resonances between Hartley, Blake and Wollstonecraft, even if they existed in different cultural contexts. In rethinking Blake and Wollstonecraft through Hartley, I offer new insights into their feminism. In particular I attend to how Hartlean culture enabled these writers to re-imagine gender and emotion: Wollstonecraft reinstates the female experience back into Hartlean concepts in order to promote women’s emotional potential and what she understands as the special power of the female-female bond. Blake responds to both Wollstonecraft and Hartley with his elevation of the feminine, one that envisions new potential for both sexes, emotionally and spiritually. In both cases, the writers share a fascination for the image of the female saviour, and they use terminology and concepts found in Hartley’s work to communicate their views. In being attentive to the shared vocabulary and ideas of these three writers’ works, this thesis highlights the importance of David Hartley and Hartlean culture for the field of Romantic Studies. It also illuminates Observations on Man as a vital contribution to the intellectual context of the 1790s.
3
Gamberini, Christian. "Implementazione di un software mobile per l'organizzazione di allenamenti in gruppo nel ciclismo." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amslaurea.unibo.it/6235/.
Abstract:
Con questo lavoro ci si pone l’obiettivo di creare un social network che possa aiutare i praticanti del ciclismo, sia a livello agonistico che a livello amatoriale, ad organizzare le loro attività di allenamento, attraverso l’utilizzo di un software sviluppato per smartphone.
Attualmente questo tipo di servizio non è mai stato implementato: l’unica via per poter ottenere un servizio simile è quello di utilizzare pagine su altri tipi di social network oppure effettuare contatti telefonici fra conoscenti.
4
Mahalingam, Arun. "Modelling the generation of toxic combustion products and its transport in enclosure fires." Thesis, University of Greenwich, 2007. http://gala.gre.ac.uk/6235/.
Abstract:
Most common building materials are polymer based. Thus toxic products evolving from burning polymers is the single most important factor in fire fatalities. Fire hazard calculations require modelling of heat generation, toxic combustion products generation and its transport in realistic building scenarios involving common building material. However, the thermal decomposition, combustion behaviour and chemical kinetics for common polymers like wood, plastics, rubber and textiles are extremely complex. In the present study, a methodology (STEM-LER: the Scalar Transport Equation based Model using the Local Equivalence Ratio concept) based on solving separate transport equations for the species and using the yield correlations obtained from bench-scale experiments to model the source terms is proposed to predict the products generation and its transport during enclosure fires. Modelling of complex solid phase degradation and chemical kinetics of polymers is bypassed by measuring the product yields as a function of equivalence ratio by burning the samples in a bench-scale combustion apparatus called Purser furnace. Since the accuracy of prediction depends upon the quality of the yield data obtained from the Purser furnace, attempts were also made to numerically investigate this bench-scale toxicity test method in order to understand its modus operandi. Finally, a preliminary assessment on the effect of cable fires on building evacuation for the simulated fire scenarios was carried out using a sophisticated evacuation model.
5
Wallace, Benjamin. "Renormalization group analysis of self-interacting walks and spin systems." Thesis, University of British Columbia, 2017. http://hdl.handle.net/2429/62135.
Abstract:
The central concern of this thesis is the study of critical behaviour in models of statistical physics in the upper-critical dimension. We study a generalized n-component lattice |φ|⁴ model and a model of weakly self-avoiding walk with nearest-neighbour contact self-attraction on the Euclidean lattice ℤd. By utilizing a supersymmetric integral representation involving boson and fermion fields, the two models are studied in a unified manner.
Our main result, which is contingent on a small coupling hypothesis, identifies the precise leading-order asymptotics of the two-point function, susceptibility, and finite-order correlation length of both models in d = 4. In particular, we show that the critical two-point function satisfies mean-field scaling whereas the near-critical susceptibility and finite-order correlation length exhibit logarithmic corrections to mean-field behaviour. The proof employs a renormalization group method of Bauerschmidt, Brydges, and Slade based on a finite-range covariance decomposition and requires two extensions to this method.
The first extension, which is required for the computation of the finite-order correlation length (even for the ordinary weakly self-avoiding walk and |φ|⁴ model), is an improvement of the norms used to control the evolution of the renormalization group. This allows us to obtain improved error estimates in the massive regime of the renormalization group flow.
The second extension involves the identification of critical parameters for models initialized with a non-zero error coordinate coupled to a marginal/relevant coordinate. This allows us, for example, to realize the two-point function and susceptibility for the walk with self-attraction as a small perturbation of the corresponding quantities without self-attraction, whose asymptotic behaviour was determined by Bauerschmidt, Brydges, and Slade. This establishes a form of universality.Science, Faculty of
Mathematics, Department of
Graduate
6
Dingwall, Riki. "Characterization of two ASD-associated genes in primary hippocampal neurons : SEMA5A and PTEN." Thesis, University of British Columbia, 2017. http://hdl.handle.net/2429/62435.
7
Qiu, Ye. "Modulation and roles of stress-responsive proteins in coxsackievirus infection." Thesis, University of British Columbia, 2017. http://hdl.handle.net/2429/62935.
Abstract:
Viral myocarditis is an inflammatory heart disease caused by viral infection, which is a major cause of sudden death in children and young adults. Among the various viruses, coxsackievirus B3 (CVB3) is a predominant pathogen of viral myocarditis. As CVB3 replication is tightly tangled with signaling pathways in host cells, an in-depth study of CVB3-host interactions would promote the understanding of the pathogenesis of viral myocarditis and provide critical drug targets for the development of therapeutics. CVB3 infection induces different types of stress in host cells, and in turn, the cells respond to the stress via expressing certain stress-responsive proteins (SRPs) to counteract the stress for cell survival. During the co-evolution of virus and host, CVB3 has developed sophisticated strategies to modulate and utilize SRPs to benefit its own replication. The main objective of this dissertation is to investigate the modulation and functional roles of SRPs in CVB3 infection and CVB3-induced myocardium damage. I hypothesize that 1) CVB3 infection differentially regulates the expression and activity of SRPs at transcription, translation or post-translation level; 2) the dysregulation of SRPs benefits CVB3 replication and promotes CVB3-induced cell damage. This dissertation mainly focuses on two SRPs, the inducible heat shock 70 kDa protein (Hsp70) and nuclear factor of activated T-cell 5 (NFAT5), during CVB3 infection. Using in vitro (cell culture) and in vivo (mouse) models, I demonstrated an increase of Hsp70 but a decrease of NFAT5 during CVB3 infection. Further studies elucidated the mechanism underlying such changes as well as the feedback effects on CVB3 replication. Hsp70 was upregulated via CaMKII-HSF1 signaling cascade activated in CVB3 infection and in turn promoted CVB3 infectivity via stabilizing viral genome and benefiting viral translation. NFAT5 was cleaved by CVB3 proteases 2A and 3C, generating a 70 kDa dominant negative truncate, which inhibited the iNOS-mediated anti-viral activity of NFAT5. Together, my findings have uncovered the new roles of SRPs in CVB3 infection and potential novel drug targets for CVB3-induced myocarditis.Medicine, Faculty of
Pathology and Laboratory Medicine, Department of
Graduate
8
Duong. "Correlation between magnetic interactions and magnetic structures in some antiferromagnetic rare earth intermetallic compounds." Amsterdam : Amsterdam : [s.n.] ; Universiteit van Amsterdam [Host], 2002. http://dare.uva.nl/document/62035.
9
Schmidt, Daniel J. Ph D. Massachusetts Institute of Technology. "Engineering electroresponsive layer-by-layer thin films." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/62735.
Abstract:
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 2011.Cataloged from PDF version of thesis.
Includes bibliographical references.
Electroresponsive layer-by-layer (LbL) polymer films and polymer nanocomposite films were investigated as model systems for electrically triggered drug delivery applications and "mechanomutable" surface coating applications. Two strategies were implemented in the design of these electroresponsive films: the use of redox-active, chargeshifting nanoparticles and the control over local pH utilizing the electrochemical reduction of dissolved oxygen. These strategies and the multiple materials systems explored are described below. Redox-active Prussian Blue (PB) nanoparticles exhibit multiple, stable oxidation states and can shift their charge in response to mild electric potentials. The inherently negatively charged particles may be self-assembled into LbL films along with positively charged polyelectrolytes. When the PB in an LbL film is oxidized to its neutral state, dissolution of the film occurs as cohesive ionic crosslinks are broken and excess charge in the film brings in ions and water for electroneutrality, which solubilize the film components. The release of the polyanion dextran sulfate and the small molecule antibiotic gentamicin sulfate were precisely controlled with an electric potential. When PB is reduced, the negative charge on the particle is doubled, which results in film swelling and a decrease in stiffness. In films comprising PB and linear polyethyleneimine, reversible thickness changes on the order of 5-10% and reversible elastic modulus changes on the order of 50% (between 3.40 GPa and 1.75 GPa) were observed. Employing the second strategy mentioned above, the local pH near an electrode surface may be increased to more basic values when dissolved oxygen is electrochemically reduced to hydroxide ions. In the first model system explored, hydrogen bonded (H-bonded) films comprising polyvinylpyrrolidone (PVPON) and tannic acid (TA), were dissolved at constant bulk pH by applying mild potentials (-0.25 V to -1.00 V vs. Ag/AgCl). The dissolution mechanism and kinetics could be tuned with the magnitude of the applied voltage and the concentration of dissolved oxygen. In the second model system explored, films comprising polyallylamine hydrochloride (PAH) and sulfonated polystyrene (SPS) were found to undergo reversible and dramatic swelling/deswelling transitions on the order of roughly 300 vol% and mechanical transitions on the order of 600-800% (shear modulus between 230 kPa and 1.9 MPa and loss modulus between 90 kPa and 620 kPa). This thesis contributes to the applied materials science branch of chemical engineering. New polymer and polymer nanocomposite thin films were developed that can be further engineered and incorporated into implantable drug delivery devices for electrically triggered drug delivery or incorporated into MEMS and microfluidic systems for flow control or biomedical applications. Furthermore, the model systems presented here open doors for fundamental work on the transport of electrons, ions, and water through these electroresponsive films and the implications of transport phenomena on the control over film dissolution and swelling responses.
by Daniel J. Schmidt.
Ph.D.
10
Xu, Zhonghui 1968. "Kuafu--annotate and search for images on the Web." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/62935.
11
Ammar, Ammar (Ammar T. ). "Search using social networks." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/62635.
Abstract:
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2010.Cataloged from PDF version of thesis.
Includes bibliographical references (p. 59-61).
In this thesis, we present an approach to the problem of personalized web search which makes use of the searcher's social network, in addition to the hyper-link based score used in most search engines. This combination of social and absolute search scores aims to improve the visibility of information that is relevant to the searcher, while maintaining any absolute measures of document importance . In our approach we adopt a flexible framework for combining information from different sources using Rank Aggregation techniques. Our search system, implemented using Java and Python, covers all the events and web pages present on MIT owned websites. We discuss the theory, design,and implementation of this system in details.
by Ammar Ammar.
M.Eng.
12
Rhim, Joong Bum. "Quantization of prior probabilities in Bayesian group decision-making." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/62435.
Abstract:
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2010.Cataloged from PDF version of thesis.
Includes bibliographical references (p. 85-87).
In Bayesian hypothesis testing, a decision is made based on a prior probability distribution over the hypotheses, an observation with a known conditional distribution given the true hypothesis, and an assignment of costs to different types of errors. In a setting with multiple agents and the principle of "one person, one vote", the decisions of agents are typically combined by the majority rule. This thesis considers collections of group hypothesis testing problems over which the prior itself varies. Motivated by constraints on memory or computational resources of the agents, quantization of the prior probabilities is introduced, leading to novel analysis and design problems. Two hypotheses and three agents are sufficient to reveal various intricacies of the setting. This could arise with a team of three referees deciding by majority rule on whether a foul was committed. The referees face a collection of problems with different prior probabilities, varying by player. This scenario illustrates that even as all referees share the goal of making correct foul calls, opinions on the relative importance of missed detections and false alarms can vary. Whether cost functions are identical and whether referees use identical quantizers create variants of the problem. When referees are identical in both their cost functions and their quantizers for the prior probabilities, it is optimal for the referees to use the same decision rules. The homogeneity of the referees simplifies the problem to an equivalent single-referee problem with a lower-variance effective noise. Then the quantizer optimization problem is reduced to a problem previously solved by Varshney and Varshney (2008). Centroid and nearest-neighbor conditions that are necessary for quantizer optimality are provided. On the contrary, the problem becomes complicated when variations in cost functions or quantizers are allowed. In this case, decision-making and quantization problems create strategic form games; the decision-making game does always have a Nash equilibrium. The analysis shows that conflict between referees, in the form of variation in cost functions, makes overall team performance worse. Two ways to optimize quantizers are introduced and compared to each other. In the setting that referees purely collaborate, in the form of having equal cost functions, the effect of variations between their quantizers is analyzed. It is shown that the referees have incentive to use different quantizers rather than identical quantizers even though their cost functions are identical. In conclusion, a diverse team with a common goal performs best.
by Joong Bum Rhim.
S.M.
13
Pope, Benjamin J. "Spray deposition of cork reinforced polyester." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/62535.
Abstract:
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2010.Cataloged from PDF version of thesis.
Includes bibliographical references (p. 55-57).
The objective of this research is to enable large part or high volume manufacturing processes to make consumer or industrial products from a cork reinforced polymer composite, similar to current applications of glass reinforced polyester. The low initial investment and high flexibility of the spray lay-up process make it an attractive candidate to study. A spray lay-up apparatus was successfully constructed and employed in manufacturing parts from a hybrid material composed of granulated cork, chopped glass strand, and a polyester matrix. The material was tested for tensile and flexural properties following relevant ASTM standards. The material was found to have a tensile strength of 4.4 MPa and tensile modulus of 850 MPa. The flexural strength and modulus were 9 MPa and 830 MPa, respectively. Adding a fiberglass skin to the cork hybrid significantly improved its flexural strength. Additionally, a small turbine blade prototype was created as a proof of concept. It is recommended that further work focus on optimizing the hybrid material's properties, re-designing and optimizing the apparatus used for the spray-up process, and demonstrating material viability by manufacturing a cross section of a large turbine blade.
by Benjamin J. Pope.
S.M.
14
Cason, Brian (Brian Paul). "Volatility of hotel market fundamentals and the determinants of variations between markets." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/62135.
Abstract:
Thesis (S.M. in Real Estate Development)--Massachusetts Institute of Technology, Program in Real Estate Development in Conjunction with the Center for Real Estate , 2010.Cataloged from PDF version of thesis.
Includes bibliographical references (p. 79-80).
How can volatility as well as other dynamics and characteristics in hotel market fundamentals affecting risk be better understood? This paper explores that fundamental question along with other more specific questions that naturally follow: What are the markets and hotel sectors that exhibit the most volatility in RevPAR, and its various components: occupancy, ADR, absorption and completions? How can markets be characterized as more supply driven or demand driven? How can market revenue metrics be characterized as rate or occupancy driven? What determines the variations in these metrics? What markets behave similarly? What do these findings mean in terms of various risk management practices? This paper develops a model for the systematic analysis of hotel markets based on observed trends in historical data. The paper first calculates measures of volatility. It then develops a model to characterize markets based on which fundamentals play a larger role in hotel market dynamics. It then provides a further comparison of markets based on which exhibit similar movements in RevPAR. The findings then are analyzed for their meaning in terms of risk in hotel markets. Finally, the findings are interpreted to reach conclusions about the nature and determinants of volatility in hotel markets, and how to better mitigate these risks in portfolio selection.
by Brian Cason.
S.M.in Real Estate Development
15
Rhodes, Bradley James. "PHISH-nets : planning heuristically in situated hybrid networks." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/62335.
16
Peña, Pichardo Rubicelia. "Propuestas para el mejoramiento y aprovechamiento sustentable del Parque Nacional Lagunas de Zempoala." Tesis de Licenciatura, Universidad Autónoma del Estado de México, 2016. http://hdl.handle.net/20.500.11799/62535.
Abstract:
En este sentido el Parque Nacion
al Lagunas de Zempoala
(PNLZ)
se ubica entre
los límites del Estado de México y Morelos.
Fue
decretado en 1936
con 22
,
700
mil
hectáreas
, se crea
debido
a sus cualidades naturales como lo es su belleza
escénica y su aptitud
para las actividades turísticas,
destacando la necesidad de
conservar los recursos forestales y los cuerpos de agua
.
Pertenece también al
corredor biológico Chichinautzin.
Dicha superficie
en 1947
por decreto presidencial
se redujo a
4,790 has., pasando
las restantes a la empresa papele
ra Loreto y Peña Pobre.
Así l
a superficie del
parque se redujo en un 78.9%.
En este aspecto, los bosques del
PNLZ
contribuye a las cifras nacionales donde
según Challenger (1998)
México
cuenta con
más del 50% de todas las especies de
pino del mundo y 33%
de las
especies
de encino,
y de las cueles depende la base
socioeconómica de
la industria forestal del país.
El
bosque templado
del p
arque
está
formado por especies de pino, encino y oyamel
, mismos que con los suelos de tipo
andosol,
son indispensables p
ara la filtración del agua y
dan lugar a un sitio que
contribuye a
la biodiversidad
de la región
La biodiversidad
que se encuentra en el p
arque está integrada por
cuatro tipos de
bosque;
336 especies de hongos; 66 especies de flora acuática
,
de las cuales
30
son consideradas acuáticas,
26 subacuáticas y 10 tolerantes, así como
946
especies de zacatonal y pastizal
, nueve
de
éstas últimas especies se encuentran
enlistadas
en la NOM
-
059
-
SEMARNAT
-
2001
Protección ambiental
-
Especies
nativas de México de flora y
fauna silvestres
-
Categorías de riesgo y
especificaciones para su inclusión, exclusión o cambio
-
Lista de especies en riesgo
.
En cuanto a la fauna silvestre, se tiene el reporte de que
existen
59 especies de
Mastofauna
;
34 especies de re
ptiles; 8 de anfi
bios, 7 de peces y
178 especies de aves
; algunas de ésta últimas,
también
están incluidas
en la
NOM
-
059
-
SEMARNAT
-
2001
.Desde la antigüedad la relación del ser humano con el medio ambiente no ha sido la más cordial. Las actividades humanas constantemente están modificando el estado original de los ecosistemas, mismo que a su vez pone en riesgo la supervivencia de las generaciones futuras. Bajo es te contexto la creación d e las Á reas Naturales Protegidas (ANP) como estrategia mundial de protección de la diversidad biológica funge como mediador para controlar los procesos de perturbación a los que están siendo sometidos los recursos naturales a causa de las actividades ant ropogénicas. Los Parques Nacionales conforman una de las categorías de las ANP, su principal función como tal es brindar lugares propuestos para la conservación de la biodiversidad en los que el público pueda disfrutar de lugares de esparcimiento y recre ación con belleza natural, además de ofrecer servicios ambientales indispensables para la supervivencia del ser humano ya que ayudan a equilibrar los procesos ecológicos y así mejoran la calidad de vida de las personas.
17
González, López Lorena, and López Lorena González. "El retorno asistido de Migrantes Centroamericanos en Situación irregular en el Estado de México." Tesis de Licenciatura, Universidad Autónoma del Estado de México, 2016. http://hdl.handle.net/20.500.11799/62835.
Abstract:
En la presente investigación el tema a trabajar será el retorno asistido de migrantes centroamericanos en situación irregular como objeto de estudio, el cual se delimita al Estado de México como entidad federativa de tránsito de migrantes y la línea de investigación se lleva a cabo dentro de los derechos humanos como rama del derecho internacional público; debido a la importancia del derecho a la libre circulación y residencia como derecho fundamental, reconocido por el Estado mexicano desde la firma y ratificación de los tratados internacionales en materia de derechos humanos, a partir de la reforma constitucional en 2011.
18
Silveira, Maria Inês da Costa. "O papel da embolização das artérias uterinas no tratamento dos fibromiomas e suas implicações na fertilidade." Master's thesis, Instituto de Ciências Biomédicas Abel Salazar, 2010. http://hdl.handle.net/10216/62235.
19
Du, Plessis Colin. "Divided we stand : the origins of separation in South African rugby 1861-1899." Diss., University of Pretoria, 2017. http://hdl.handle.net/2263/62635.
Abstract:
The importance of sport in the revision of the past has gained much recognition in recent times and the genre of sport history has become ever more popular as a result. This dissertation attempts to locate and trace the historically binary relationship of sport with concepts such as unification and division, inclusion and exclusion, while focussing on the historical divide in South African rugby. While it is true that sport creates community and pulls people together, it is also true that sport often serves as a stage for division and social exclusion. This is well illustrated in the development and diffusion of rugby in South Africa. Various theories have been developed to analyse division within societies which may shed more light on the effectiveness of sport as a social divider in the nineteenth century. The concepts and theories include B. Bernstein, H. L. Elvin and R. S. Peters's ideas on rituals and symbols; Eric Hobsbawm's "Invented Traditions"; Benedict Anderson's "Imagined Communities"; as well as Antonio Gramsci's "Cultural Hegemony". These theories, employed within a strong legacy of British cultural imperialism, could explain how the rugby community in South Africa came to be racially stratified. This dissertation sets out to show how the establishment of schools based on the English public school model, and exclusive rugby clubs and unions in South Africa, all aided in the formalisation of rugby and in doing so unlocked the political power of the sport. By looking to the formalisation, and thus politicisation of rugby, this dissertation attempts to trace the origins of separation in South African rugby. It is thus the aim of this study to discern the link between middle class schools, the establishment of exclusive clubs and unions and the racial stratification of South African rugby.Dissertation (MHCS)--University of Pretoria, 2017.
Historical and Heritage Studies
MHCS
Unrestricted
20
Casañ, Llopis Vicente José. "De la autopista al bulevar. Trazado viario y espacio público en la Valencia contemporánea, 1946-1988." Doctoral thesis, Universitat Politècnica de València, 2016. http://hdl.handle.net/10251/62535.
Abstract:
[EN] This doctoral thesis studies contemporary Valencia from
the point of view of infrastructure planning, public spaces
and in particular, the arterial road of the city during the
period of 1946 to 1988. The historical study dates back to
the founding of Valentia.
The title "From the Freeway to the Boulevard", aims to
condense into one phrase, the future of the city's great
structural axis, from the boulevards of the complex, master
land-use planning of 1946 (and master plan of 1959),
which mutated into freeway and urban highway, with the
master plan of 1966, and closing the circle with the boulevards,
even though in the most simplistic version of the
1988 master plan.
A wide range of solutions designed over the past forty
or more years, have come and gone, and have been
analyzed in each axis, and the different versions that
have shifted, some of which did get built over all those
years, so an extensive repertoire of projected solutions
is now available. Even to this day, some of those boulevards
are still pending completion.
A primary objective of the present research, which fortunately
has been thoroughly met, was to reveal some
unpublished material on this topic. The more unknown
documentation, logically, is concentrated in the first decades
(the 1940s and 1950s). However, it (the research)
has gone back in time, obtaining previously unpublished
plans from the end of nineteenth century to the beginning
of twentieth century.
To conclude, the thesis includes an appendix of documents
that collects graphical and written material, in
which each piece can be fully recognized, because
throughout the work it is displayed mostly in fragments or
montages, and that helps to better understand each road
traffic episode.[ES] La presente tesis doctoral estudia la Valencia contemporánea desde el punto de vista del trazado viario y el espacio público, y en concreto, del viario arterial de la ciudad en el periodo de 1946 a 1988. El estudio de los antecedentes se remonta hasta la fundación de Valentia. El título "De la Autopista al Bulevar", pretende condensar en una frase el devenir de los grandes ejes estructurantes de la ciudad, desde los bulevares complejos del Plan General de Ordenación Urbana de 1946 (y la Ordenación de 1959), que mutaron en autopistas y autovías urbanas con el Plan General de 1966, cerrando el círculo con los bulevares, aunque en su versión más simplista, del Plan de 1988. Se analizan, en cada eje, las distintas versiones que a lo largo de más de cuarenta años se han ido sucediendo, sin que llegaran a ser construidas algunas de ellas en todo ese tiempo, con lo que se dispone de un amplio repertorio de soluciones proyectadas. E incluso a día de hoy, algunos de aquellos bulevares siguen pendientes de realización. Un objetivo primordial de la presente investigación, que por fortuna ha sido satisfecho abundantemente, era sacar a la luz material inédito sobre esta cuestión. La documentación más desconocida se concentra, lógicamente, en las primeras décadas (años '40 y '50). Con todo, se ha ido más atrás en el tiempo, obteniendo planos inéditos de finales del s. XIX y principios del XX. Para finalizar, la tesis incluye un anexo de documentos que recopila el material gráfico y escrito, en que se puede reconocer cada pieza íntegramente, pues a lo largo del trabajo se muestran mayoritariamente los fragmentos o los montajes que mejor ayudan al conocimiento de cada episodio viario.
[CAT] La present tesi doctoral estudia la València contemporània des del punt de vista del traçat viari i l'espai públic, i en concret, del viari arterial de la ciutat en el periode de 1946 a 1988. L'estudi dels antecedents es remunta fins a la fundació de Valentia. El títol "De l'Autopista al Bulevard", pretén condensar en una frase l'esdevindre dels grans eixos estructurants de la ciutat, des dels bulevards complexos del Pla General d'Ordenación Urbana de 1946 (i l' Ordenació de 1959), que van mutar en autopistes i autovies urbanes amb el Pla General de 1966, tancant el cercle amb els bulevards, tot i que en la seua versió més ximplista, del Pla de 1988. S' analitzen en cada eix, les diferents versions que al llarg de més de quaranta anys s'han anat succeint, sense que arribaren a ser construïdes algunes de elles en tot eixe temps, amb la qual cosa es disposa d' un ampli repertori de solucions projectades. I fins-i-tot a hores d'ara, hi ha alguns d'aquells bulevards que resten pendents de realització. Un objectiu primordial de la present investigació, que por fortuna ha sigut satisfet abundantment, era treure a la llum material inèdit al voltant d'aquesta qüestió. La documentació més desconeguda, com és lógic, es concentra en les primeres décades (anys '40 i '50). Amb tot, se n'ha anat més arrere en el temps, obtenint plànols inédits de finals del s. XIX i principis del XX. Per a finalitzar, la tesi inclou un annex de documents que recopila el material gràfic i escrit, en que es pot reconéixer cada peça íntegrament, doncs al llarg del treball es mostren preferentment els fragments o els muntatges que millor ajuden al coneixement de cada episodi viari.
Casañ Llopis, VJ. (2016). De la autopista al bulevar. Trazado viario y espacio público en la Valencia contemporánea, 1946-1988 [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/62535
TESIS
21
Vidal, Núñez José. "Algunas contribuciones a problemas de optimización en programación matemática." Doctoral thesis, Universidad de Alicante, 2016. http://hdl.handle.net/10045/62735.
22
Silveira, Maria Inês da Costa. "O papel da embolização das artérias uterinas no tratamento dos fibromiomas e suas implicações na fertilidade." Dissertação, Instituto de Ciências Biomédicas Abel Salazar, 2010. http://hdl.handle.net/10216/62235.
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Consolandi, C. "Development of DNA microarrays for human single nucleotide polymorphisms detection." Doctoral thesis, Università degli Studi di Milano, 2004. http://hdl.handle.net/2434/62035.
Abstract:
One major goal of genetic research is to understand the role of genetic variation. By far the most common type of such variation in humans involves single DNA bases, and is termed single nucleotide polymorphism (SNP). In order that DNA chip technology continue to emerge as an alterative to conventional DNA diagnostic methods, questions about the conformation and activity of DNA on surfaces must be addressed. We developed three robust chemical methods for the covalent attachment of amino-modified oligonucleotides on glass surfaces based on polymeric coatings, providing robust platforms to prepare oligonucleotide arrays. We explored the feasibility of using oligonucleotide-array methods for molecular typing of a highly polymorphic genomic region by using the PCR-LDR strategy. We set up a low resolution microarray-based molecular tool for allele discrimination, which is of interest in clinical applications. Our goal was the identification of Single Nucleotide Polymorphisms in the Human LeukocyteAntigen gene. The methodology we proposed presents interesting features as genotyping tool: the reaction principle is robust, the assay easily automated, thereaction format flexible and capable to analyse different samples in parallel.
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Hoffmann, Jauge Christian Amadeo. "Caracterización hidromecánica de mezclas de pellets de bentonita. Estudio experimental y constitutivo." Doctoral thesis, Universitat Politècnica de Catalunya, 2005. http://hdl.handle.net/10803/6235.
Abstract:
Actualmente, la utilización de energía atómica representa un 16 % del total de la energía que se produce a nivel mundial. Uno de los mayores problemas que afronta su utilización, es encontrar una solución segura para almacenar los residuos resultantes del proceso de producción de energía.Una de las propuestas más estudiada y aceptada como solución a este problema, es la construcción de depósitos subterráneos donde mantener el residuo aislado durante el resto de su vida activa, ENRESA (2000), Reseal (2000). PRACLAY (1998). Estos depósitos se han diseñado siguiendo el criterio de multibarreras: conjunto de barreras independientes y redundantes que mantienen el residuo aislado. Los residuos se disponen, dentro de contenedores metálicos, en nichos horizontales o verticales, excavados en la roca. Para ellenar el espacio entre la roca y el contenedor metálico se busca un material que representa una verdadera barrera aislante, denominada, barrera de ingeniería. Estos materiales están constituidos mayormente por bentonita.
El Proyecto EB, propone el estudio de un nuevo concepto de almacenamiento subterráneo para residuos radioactivos de larga actividad. El residuo se dispone dentro de contenedores metálicos alojados en nichos horizontales excavados en una roca arcillosa (Opalinus clay), y como material aislante, se utiliza una combinación de bloques y pellets de bentonita compactada. Ambos materiales se fabrican a partir de una misma bentonita, la bentonita Febex, ENRESA (2000).
La presente tesis doctoral, está asociada a los trabajos experimentales de caracterización del comportamiento hidromecánico de la muestras de pellets, realizados en el marco del proyecto EB. Para poder estudiar los aspectos más relevantes de la respuesta del material es necesario combinar distintas técnicas experimentales para el control de la succión (Romero, 2001) y adecuar las distintas metodologías de ensayo.
Los trabajos de tesis se realizaron en tres etapas fundamentales: Una primera etapa en la que se estudiaron las características estructurales de las mezclas de pellets de bentonita. Se prepararon muestras con distintas densidades secas y se realizaron ensayos de porosimetrías de mercurio (MIP) y ensayos de infiltración.
Una vez finalizada esta primera etapa, se definió una metodología de trabajo y se llevaron adelante los distintos ensayos del programa experimental. En esta etapa se describen las distintas técnicas y equipos experimentales y se presentan los resultados obtenidos en los distintos ensayos divididos en tres grupos; ensayos de caracterización del comportamiento hidráulico, en segundo lugar ensayos de expansión, hinchamiento y compresibilidad con control de la succión y finalmente los ensayos realizados para estudiar la influencia del tipo de transferencia de agua y ritmo de mojado en el comportamiento del material.
En la última etapa, se plantearon las bases conceptuales y leyes constitutivas de un modelo adecuado para materiales expansivos (Modelo BExM, Gens & Alonso (1992) y Alonso et al. (1999)). El modelo se implementó en un código numérico utilizando la técnica de diferencias finitas y aplicado al caso de las mezclas de pellets de bentonita. Se detalla la implementación de las distintas ecuaciones y se describe el planteo iterativo utilizado para su resolución. Adicionalmente, se sugiere una metodología para la deducción de los distintos parámetros del modelo, se indican las capacidades del modelo en distintos ejemplos y se comparan las predicciones del modelo con el comportamiento real observado.
Al final de la tesis, se presentan los resultados experimentales obtenidos en un ensayo a mediana escala, llamados ensayos de Columna de Infiltración. El objetivo de estos ensayos es estudiar la respuesta del material en una escala media, en condiciones muy controladas y similares a las de su utilización como material, en una barrera de ingeniería.
25
Cabral, António Pedro Serrasqueiro Robalo. "Homicídio por negligência em meio rodoviário: caracterização e tipologia de acidentes de viação com vítimas mortais no distrito de Lisboa." Master's thesis, Instituto Superior de Ciências da Saúde Egas Moniz, 2013. http://hdl.handle.net/10400.26/6235.
Abstract:
Dissertação para obtenção de grau de Mestre em Psicologia Forense e CriminalOs acidentes de viação com vítimas mortais são uma das maiores causas de mortes em Portugal. O presente estudo tem como objetivo melhor compreender este fenómeno. Assim, foi feita uma caraterização estatística dos acidentes com vítimas mortais em meio rodoviário no distrito de Lisboa, identificaram-se os fatores associados à condução que podem ser dados como causas prováveis, caraterizaram-se os arguidos do crime de homicídio por negligência em acidentes de viação e explorou-se de que forma os fatores em estudo se relacionam entre si.
A amostra foi constituída por 115 acidentes ocorridos entre 2007 e 2011 no Distrito de Lisboa e investigados pelos NICAV da GNR. Os dados acerca dos acidentes foram recolhidos através da consulta de Relatórios Técnicos de Acidentes de Viação realizados pelos investigadores dos NICAV. Para realizar a caraterização deste tipo de acidentes foram utilizados métodos de análise estatística descritiva e inferencial, bem como o método multivariado Análise de Correspondências Múltiplas (ACM) e o método Análise de Clusters para procurar padrões na forma como os fatores em estudo se relacionam entre si e para a construção de uma tipologia.
Os resultados mais importantes indicam que as causas mais associadas com os acidentes com vítimas mortais são a distração e a velocidade excessiva, seguidas do incumprimento das regras de trânsito ou manobras irregulares e da fadiga ou adormecimento ao volante. Foram também encontradas três tipologias de acidentes com vítimas mortais: o despiste por negligência da vítima, o homicídio por negligência e os outros acidentes com vítimas mortais. A tipologia do homicídio por negligência está associada a suspeitos entre os 18 e os 26 anos, com pouca experiência de condução, consumos de álcool e/ou canabinóides, e cuja causa direta está associada à distração e as causas indiretas à alcoolização, à fadiga e à velocidade excessiva, representando uma negligência mais grosseira.
26
中西, 満貴典, and Mikinori Nakanishi. "メディア・リテラシーの批判的検討１ : 英語教育の実践を分析対象にして." Graduate School of International Development. Nagoya University, 2004. http://hdl.handle.net/2237/6235.
27
Fernandez, Anthony Vincent. "Phenomenology and the Crisis of Contemporary Psychiatry: Contingency, Naturalism, and Classification." Scholar Commons, 2016. http://scholarcommons.usf.edu/etd/6235.
Abstract:
This dissertation is a contribution to the contemporary field of phenomenological psychopathology, or the phenomenological study of psychiatric disorders. The work proceeds with two major aims. The first is to show how a phenomenological approach can clarify and illuminate the nature of psychopathology—specifically those conditions typically labeled as major depressive disorder and bipolar disorder. The second is to show how engaging with psychopathological conditions can challenge and undermine many phenomenological presuppositions, especially phenomenology’s status as a transcendental philosophy and its corresponding anti-naturalistic outlook.
In the opening chapter, I articulate the three layers of the subject matter of phenomenological research—what I refer to as “existentials,” “modes,” and “prejudices.” As I argue, while each layer contributes to what we might call the “structure” of human existence, they do not do so in the same way, or to the same degree. Because phenomenological psychopathology—and applied phenomenology in general—aims to characterize how the structure of human existence can change and alter, it is paramount that these layers be adequately delineated and defined before investigating these changes.
In chapters two through five, I conduct hermeneutic and phenomenological investigations of psychopathological phenomena typically labeled as major depressive disorder or bipolar disorder. These investigations address the affective aspects of depression and mania, and the embodied aspects of depression. In addition to clearly articulating the nature of these phenomena, I show how certain psychopathological conditions involve changes in the deepest or most fundamental layer of human existence—what I refer to as existentials. As I argue, many of the classical phenomenologists (including Husserl and Heidegger) believed that these structural features were necessary, unchanging, and universal. However, this presupposition is challenged through the examination of psychopathological and neuropathological conditions, undermining the status of phenomenology as a transcendental philosophy.
While this challenge to classical phenomenology is only sketched in the early chapters, in chapters six and seven I develop it in more detail in order to achieve two distinct ends. In chapter six I argue that psychopathology and neuropathology not only challenge phenomenology’s status as a transcendental philosophy, but also supply a key to developing a phenomenological naturalism (which I contrast with a naturalized phenomenology). Phenomenological naturalism, as I articulate it, is a position in which phenomenology is not subsumed by the metaphysical and methodological framework of the natural sciences, but nonetheless maintains the capacity to investigate how the natural world stands independent of human subjectivity (and how events in the natural world can bring about changes in the most fundamental structures of human existence). In the seventh chapter I argue that a phenomenology in which existentials are contingent and variable rather than necessary and unchanging allows phenomenologists to contribute to new dimensional approaches to psychiatric classification. Rather than begin from distinct categories of disorder, these approaches begin from distinct core features of human existence. These features, referred to as either dimensions or constructs, can vary in degree and are studied in both normal and pathological forms.
28
Bocian, Artur. "Gas-loading apparatus for large-volume high-pressure cell." Thesis, University of Edinburgh, 2012. http://hdl.handle.net/1842/6235.
Abstract:
The Paris-Edinburgh cell (PEC) is a widely used opposed-anvil device for neutron scattering. Since its development, it has been used to study a number of samples loaded as solids or liquids. However, studying gases at room temperature has not yet been possible. Up until now only a few gases could be loaded as liquids, in cryogenic conditions. Thus, it was impossible to study many gases and gas mixtures and also it was difficult to use gases as pressure-transmitting media (PTM). In order to overcome these limitations, a technique that would enable loading of gases into the PEC was required. The work described in this thesis was focused on the design and use of a gas-loading system for the PEC. The challenge of designing such a system comes from the fact that the gases need to be loaded into the gasket at sufficient density in order to achieve any significant pressure during further compression in the cell. This can be achieved by using a separate pressure vessel. Because the whole PEC is too large to be placed inside the vessel, a technique of loading gas into the anvils separated from the rest of the cell had to be devised. Designing the holder for the anvils, which would make this possible, presented a major challenge as it should allow the anvils to be transferred between the vessel and the PEC, with the gasket filled with high-pressure gas. Then it needs to allow further compression of the gasket inside the PEC. The developed system consists of a pressure vessel and a locking clamp for the anvils. The pressure vessel is a closed-end thick-walled cylinder with a top cover which has an opening for a piston. The vessel is placed on the table of a hydraulic press and the piston, sealed by a high-pressure reciprocating seal, is used to transmit the force from hydraulic ram onto the anvils which are held by the clamp and placed inside the vessel. One of the anvils is fixed to the clamp and the other one is supported by spring-loaded latches - the latches engage when the anvils are pushed towards each other. Thus, when the force is applied onto the anvils to compress the gasket, latches lock the anvils in their positions stopping them from retracting and maintaining the gasket compressed after the force is released. The clamp allows the gasket to be filled with the gas and then deformed to seal the compressed gas. The locking mechanism keeps the gasket compressed, which enables the clamp to be transferred from the vessel to the PEC. After the system was built and tested, it was installed at ISIS neutron source (Oxfordshire, UK), where it has been used in several experiments. The first experiment prepared with the gas-loading system was a neutron diffraction study of nitrogen at high pressure. Nitrogen was chosen as a sample material because its high-pressure structural phase diagram is well established. Nitrogen was loaded into the gasket using the gas loader and then it was compressed in increments to 6 GPa in the PEC. β and δ phases of solid nitrogen were clearly seen in the collected neutron diffraction data. The experiment proved the usability of the gas-loading system and verified its expected performance. The second experiment utilizing the gas-loading system was to study singlecrystal and powder samples of sodium chloride (NaCl) and squaric acid (H2C4O4). For these studies argon was used as a PTM, replacing the conventionally used methanol-ethanol mixture (ME). Up until this experiment the highest pressure reported in single-crystal neutron-scattering experiments was 12 GPa. This limit was set by the solidi cation pressure of ME. With argon as the PTM, the samples were compressed to 15 GPa without any damage to the crystals. Another advantage of replacing ME with argon is improved hydrostaticity. The highest pressure that ME remain hydrostatic to is 11 GPa. Compressing beyond this point causes sheer stress acting on the sample which affects the quality of the neutron scattering data manifested in the appearance of peak-broadening in the diffraction patterns. With use of argon, the powder samples have been compressed to 18 GPa while maintaining quasi-hydrostatic pressure conditions, resulting in clean and sharp diffraction patterns without any noticeable peak-broadening.
29
Stuart, Shirley Eleanor. "Quality of naps in infants across home and early childhood education centre settings." Thesis, University of Canterbury. Health Sciences Centre, 2011. http://hdl.handle.net/10092/6235.
Abstract:
Limited research has been done on naps, particularly in early childhood education centres (ECECs). The present study followed a study by Torok (2009) with sleep-disturbed infants in ECECs. The objective of the current study was to examine the quality of naps in infants described as “typical sleepers” across two settings: the home and the early childhood education centre (ECEC). Two males and two females, ranging in age from 15- to 17-months contributed to four case studies. These were: i) an infant transitioning to the ECEC; ii) and iii) infants described as “settled” in an ECEC; and iv) an infant reported to have sleeping difficulties at home after the occurrence of a major earthquake. Observations from digital recordings were coded to determine sleep states and patterns. The findings across each case study were: i) naps varied in both settings during the infant’s transition to an ECEC but settled in both settings once the infant was “settled” at the ECEC; ii) naps tended to be consistent across both settings in the “typical sleepers” who were settled at the ECEC; and iii) naps at home were varied in the infant reported to have reacted to the earthquake while her naps at the ECEC were consistent. Overall findings suggested that total nap periods tended to be longer at home, sleep efficiency tended to be higher at the ECEC, and that participants tended to engage in more active sleep than quiet sleep. Caregiver presence was a major difference between the home and ECEC setting. This study demonstrated differences and similarities across both settings with infants described as “typical sleepers”. This is an important area due to the increasing number of infants attending ECECs (Statistics NZ, 2010). Several directions for future research have been presented.
30
Frégeau, Marc-Olivier. "Régulation des récepteurs de l'inositol 1,4,5-trisphosphate par l'activation concomitante de différentes voies de signalisation." Thèse, Université de Sherbrooke, 2013. http://hdl.handle.net/11143/6235.
Abstract:
Le récepteur de l'inositol 1,4,5-trisphosphate (IP?R), un canal calcique, est un des principaux régulateurs de la mobilisation de Ca[indice supérieur 2+] intracellulaire. En regardant globalement les mécanismes de régulation des IP?Rs, on peut se rendre compte que cette régulation se fait bien souvent dans le contexte précis d'une ou de plusieurs voies de signalisation. Bien que de nombreux modulateurs de l'activité calcique des IP?Rs soient déjà connus, encore aujourd'hui beaucoup de questions sont en suspens. En fait, un nombre croissant de preuves et d'observations suggèrent que la régulation spécifique des mécanismes de signalisation calcique peut être accomplie par l'activation simultanée de plusieurs voies de signalisation ce qui permet de soutenir la diversité d’action du Ca[indice supérieur 2+]. Une de ces voies, la voie de croissance et de prolifération cellulaire PI3K-AKT-mTOR fut d’abord investiguée dans la première partie de cette thèse afin de comprendre l’importance de l’activité calcique des IP?R dans ces phénomènes d’importance majeure. Nous avons montré que mTOR interagit et phosphoryle l'IP?R-3 dans les cellules RINm5F puis déterminé que le niveau d’activité de mTOR affectait les relâches calciques médiées par l'IP?R-3 de ces cellules. Sachant que mTOR contrôle la prolifération et l'homéostasie cellulaire et que le Ca[indice supérieur 2+] joue aussi un rôle clé dans ces deux phénomènes, il est logique de croire que mTOR facilite les relâches calciques dépendantes des IP?Rs afin de fournir le Ca[indice supérieur 2+] nécessaire aux actions physiologiques de mTOR. La deuxième section de cette thèse a exploré l’interaction entre la voie dopaminergique et la voie calcique dépendante des IP?Rs. Nos résultats suggèrent que calcyon, une protéine liant le Ca [indice supérieur 2+] surexprimée dans plusieurs neuropathologies, est impliquée dans l'internalisation des récepteurs D2 par un mécanisme encore inconnu qui cause par le fait même une relâche calcique tardive dans les cellules PC-12. Nous avons montré que cette protéine affecte aussi l’activité calcique des IP?Rs. Nos résultats suggèrent que calcyon est la protéine reliant les voies de signalisation calcique et dopaminergique et que son implication est d’importance majeure afin d’assurer l’homéostasie calcique neuronale. L’ensemble de ces travaux montre toute l’étendue de la régulation calcique et de l’interaction entre les voies de signalisation.
31
Pinjala, Mallikarjuna Rao. "Adhoc routing based data collection application in wireless sensor networks." Kansas State University, 2010. http://hdl.handle.net/2097/6235.
Abstract:
Master of ScienceDepartment of Computing and Information Sciences
Gurdip Singh
Ad hoc based routing protocol is a reactive protocol to route messages between mobile nodes. It allows nodes to pass messages through their neighbors to nodes which they cannot directly communicate. It uses Route Request (RREQ) and Route Reply (RREP) messages for communication. Wireless sensor networks consist of tiny sensor motes with capabilities of sensing, computation and wireless communication. This project aims to implement data collector application to collect the temperature data from the set of wireless sensor devices located within a building, which will help in gathering the information by finding the route with minimum number of hops to reach destination and generates low message traffic by not encouraging the duplicate message within the network. Using this application, wireless devices can communicate effectively to provide the network information to the user. This system consists of a mobile wireless sensor device called base station which is connected to a PC to communicate and is the root of the network. It also consists of set of client sensor devices which are present in different parts of the building. This project has been evaluated by determining how well the ad hoc protocol performs by measuring the number of messages and time consumed in learning about the complete topology. This application will eventually find the path with minimum number of hops. Simple Network Management Protocol (SNMP) is also used to monitor the sensor nodes remotely. This project was developed using nesC and C programming languages with TinyOS and UNIX based operating systems. It has been tested with a sufficient number of motes and evaluated based on the number of messages generated and number of hops traveled for each route request.
32
Pinto, Nuno Miguel Mesquita Gomes. "Flexão ativa e passiva da coxo femoral e a sua relação com a performance neuromuscular." Bachelor's thesis, [s.n.], 2017. http://hdl.handle.net/10284/6235.
Abstract:
Projeto de Graduação apresentado à Universidade Fernando Pessoa como parte dos requisitos para obtenção do grau de Licenciado em FisioterapiaIntrodução: A avaliação funcional é determinante para a prática da fisioterapia. O uso do teste de elevação do membro (TEMI) na posição supinada, de forma ativa e passiva, permite avaliar a funcionalidade da musculaturaposterior da coxa. Objetivo: Comparar o TEMI ativo e passivo, e de que forma este se correlacionaria com a performance neuromuscular. Metodologia: Análise cinemática do TEMI ativo e passivo, com captura de análise do movimento 3D através do Qualisys Oqus Camera Series (Qualisys), e avaliação da força da musculatura do joelho através do Dinamómetro Isocinético Byodex System 4 Pro™ (Byodex). Resultados: Na avaliação da comparação do TEMI ativo com o TEMI passivo, só se obteve uma diferença estatisticamente significativa (p=0,01), na amplitude máxima de teste, entre a abdução/adução realizada de forma ativa e passiva do membro inferior esquerdo.. Na avaliação da força isocinética, nenhum dos parâmetros avaliados teve uma diferença estatisticamente significativa não existindo qualquer correlação com o TEMI ativo e passivo. Conclusão: Não existem diferenças significativas entre o TEMI ativo e passivo, e os valores deste, não parecem influenciar a performance neuromuscular.
Introduction: Functional assessment is essential for physical therapy practice. The use of the lower limb elevation test (TEMI) in the supinated position, in an active and passive way, allows to evaluate the functionality of the posterior muscles of the thigh. Objective: To compare active and passive TEMI, and how this would correlate with neuromuscular performance. Methodology: Kinematic analysis of active and passive TEMI, with capture of 3D movement analysis through the Qualisys Oqus Camera Series (Qualisys), and evaluation of knee muscle strength through the Byodex System 4 Pro Is Isokinetic Dynamometer (Byodex). Results: In the evaluation of the comparison of the active TEMI with the passive TEMI, only a statistically significant difference (P = 0.01) was found in the maximal test amplitude between abduction/adduction of the left lower limb performed actively and passively. In the evaluation of isokinetic strength, none of the parameters evaluated had a statistically significant difference and there was no correlation with active and passive TEMI. Conclusion: There are no significant differences between active and passive TEMI, and their values do not seem to influence neuromuscular performance.
N/A
33
Assunção, Maria Saraiva Mendes. "mRNA genotyping by gold nanoprobes." Master's thesis, Faculdade de Ciências e Tecnologia, 2011. http://hdl.handle.net/10362/6235.
Abstract:
Dissertação para obtenção do Grau de Mestre em
BiotecnologiaBionanotechnology has emerged as a field with great potential for molecular diagnose. Namely, the use of gold nanoparticles has allowed the development of molecular diagnostic methods with greater sensitivity and specificity at a fraction of the cost inherent to conventional techniques. The present work assessed the ability of gold nanoprobes to detect targets with single base differences in RNA molecules following the colorimetric non-cross-linking method. As proof-of-concept, gold nanoprobes were designed, synthesized and characterized to detect three different SNPs (c.2731C>T, c.3232A>G and c.3238G>A) in the BRCA1 gene, a gene associated with inherited breast cancer. Reference materials, susceptible to be used for the calibration of the method, were created by cloning genomic fragments amplified from biological samples containing the sequences of interest in an appropriate vector for subsequent in vitro/in vivo transcription. Initially, the ability of target recognition by the gold nanoprobes was assessed using synthetic oligonucleotides targets alone and spiked-in total RNA of Saccharomyces cerevisiae, and later using transcripts synthetized in vitro/in vivo. This study revealed the capacity of target detection up to 0.25% of complementary target/total RNA, for a final concentration of complementary target of 0.12pmol/μL. It was also possible to detect and discriminate both c.3232A>G SNP alleles using only 0.08pmol/μL of in vitro transcript. For the in vivo transcript samples the results were inconclusive.
34
Marquez, María Celeste. "La evaluación de los estándares de calidad del área de estudios sociales y su influencia en el rendimiento académico en los estudiantes de la Escuela Rumiñahui del Cantón Pasaje - Ecuador periodo lectivo 2013 - 2014." Master's thesis, Universidad Nacional Mayor de San Marcos, 2016. https://hdl.handle.net/20.500.12672/6235.
Abstract:
Publicación a texto completo no autorizada por el autorDetermina la influencia que existe entre la evaluación de los estándares de calidad del área de estudios sociales en el rendimiento académico de los estudiantes de la escuela Rumiñahui. Investigación aplicada, de nivel descriptivo, con diseño correlacional, en razón que establece relación entre las dos variables de estudio. La muestra está conformada por docentes: 05 del área de estudios sociales y alumnos: 90 de 8, 9, 10 año de EGB de la escuela. Además, esta investigación fundamenta teóricamente la evaluación y expone nuevas alternativas que ayuden a mejorar la evaluación de la asignatura de estudios sociales aplicando nuevas técnicas e instrumentos que se puedan utilizar.
Tesis
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Doreen, Nchang. "Language, migration and identity: Exploring the trajectories and linguistic identities of some African migrants in Cape Town, South Africa." University of the Western Cape, 2018. http://hdl.handle.net/11394/6235.
Abstract:
Philosophiae Doctor - PhD (Linguistics, Language and Communication)This study is an exploration of the different trajectories of a selected number of African migrants into and around South Africa, focusing on the effects of these different trajectories on their language use patterns and linguistic identities. Informed by the interpretive paradigm, the study was done in order to show the effects of space, migration, trauma and ethno-linguistic tensions such as xenophobia on people's language use. Ultimately, the study is an analysis of a number of migrants' language biographies. South Africa is a multilingual and multicultural country with eleven official languages and many migrant languages, resulting from the flow of people from other countries, especially from highly multilingual and multicultural African countries, to this major economic hub on the continent. New trends in globalization witnessed across the globe and socio-political and economic instabilities witnessed in some countries, have prompted some of these migrants to move to South Africa, they see as more economically and politically stable than their home countries. Among those who have migrated to Cape Town South Africa are Cameroonian migrants whose living conditions will never be the same again. The study was conducted because there is a need for a better understanding of the strategies multilingual people employ to negotiate language and cultural differences in a globalized world, often under very trying conditions (as is the case in South Africa). The study critically explores the language biographies, the full repertoire of communicative resources of selected Cameroonian migrants in Cape Town as well as making visible their polylingual repertoires and associated attitudes and beliefs in the research domain. The theoretical framework for this study is shaped by theories of late modernity with reference to traditional sociolinguistics, globalization and migration. A multi-dimensional analytical approach is employed in this study, incorporating Discourse Analysis (DA), Narrative Analysis (NA), Critical Discourse Analysis (CDA), Thematic Analysis (TA) and Multimodal Discourse Analysis (MDA) that incorporates the Multimodal Biographic Approach.
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Silva, Luiz Alberto Michet da. "Anticorpos antidoador em baixos níveis detectados por meio de prova cruzada por citometria de fluxo pré-transplante : influência na sobrevida do enxerto em transplante de rim de cadáver." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2004. http://hdl.handle.net/10183/6235.
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Stepova, K. V., and A. Z. Kontsur. "LEAD ADSORPTION FROM WASTEWASTER BY MODIFIED BENTONITE." Thesis, Львівський національний університет ім. І.Франка, 2019. http://hdl.handle.net/123456789/6235.
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Blanchard, Ryan. "An investigation of riparian vegetation recovery following invasive alien tree clearing in the Western Cape." Master's thesis, University of Cape Town, 2008. http://hdl.handle.net/11427/6235.
Abstract:
Includes abstract.Includes bibliographical references (leaves 113-134).
Riparian zones are dynamic, as a result of varying levels of disturbance from natural flooding regimes, and this makes them particularly susceptible habitats to invasion by alien plants. In South Africa, particularly the Fynbos Biome, closed-stand invasions by alien Acacia and Eucalyptus species have been able to develop within riparian areas. Their impacts on water resources and biodiversity have been countered by manual clearing in order to protect the valuable ecosystem services provided by intact riparian zones, as well as the biodiversity of indigenous communities. The Working for Water programme is tasked with the important role of controlling invasive alien plants with an assumption that indigenous vegetation will recover naturally. Current management objectives are to reduce above ground biomass of invasive alien plants by labour intensive means, after which indigenous vegetation is usually left to recover without further intervention. However, it is unclear to what extent natural recovery can be achieved. The main aims of this study were to ascertain the nature of riparian vegetation recovery, as well as determine which clearing treatment was most successful in promoting recovery. This was achieved by focusing on: 1) the recovery of species composition and biodiversity, 2) recovery of vegetation structure (assumed to be a surrogate for ecosystem function) and 3) whether a particular clearing treatment best promoted indigenous riparian vegetation recovery. Reference sites (control), as determined by Prins et aI., (2004), were compared to alien impacted sites in order to analyse variation among vegetation variables. Three initial clearing treatments were identified, namely: Fell Only (trees are felled and slash left on site), Fell & Remove (slash is removed from the riparian zone) and Fell & Bum (the slash is left for six months to a year before it is burnt).
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Simão, Fátima Cristina Paulino. "The effects of distinct herbicide regimes in soil arthropods." Master's thesis, Universidade de Aveiro, 2011. http://hdl.handle.net/10773/6235.
Abstract:
Mestrado em Ecologia, Biodiversidade e Gestão de EcossistemasAs práticas agrícolas têm sido associadas a perdas em larga escala a nível da biodiversidade. No entanto, elementos como as margens dos campos, são con-siderados importantes e com potencial para diminuir os impactes da agricultura ao promover fontes de alimento e refúgio. No entanto, os pesticidas e em parti-cular os herbicidas podem afectar estas áreas e provocar impactes nas comu-nidades que dependem destas estruturas. Devido à sua sensibilidade a pertur-bações, os artrópodes são um grupo ideal para avaliar os impactes de pestici-das nos sistemas agrícolas. Para além disto têm um papel fundamental nas teias tróficas, constituindo a maior fonte de alimento para muitos vertebrados que habitam nestes ambientes, como a espécie de lagartixa Podarcis bocagei. Neste estudo, avaliou-se o efeito da utilização de herbicidas nas comunidades de artrópodes de margens agrícolas, com recurso ao método de captura por armadilha de queda e a um método para estimar rapidamente a biodiversidade, a identificação a um nível taxonómico elevado. O estudo focou-se nas diferen-ças entre margens de campos com e sem herbicidas em duas estações, prima-vera e outono. A abundância, riqueza de grupos e a composição de guildas tróficas foram determinadas, assim como a abundância e tamanho dos artrópo-des presas de Podarcis bocagei, a lagartixa mais comum na área. Relativamente às diferenças encontradas entre os campos, destaca-se a ausência de um padrão negativo provocado pelos herbicidas. Na primavera os parâmetros avaliados foram, geralmente, mais elevados nas margens agrícolas tratadas. No outono o padrão que surgiu foi distinto, com um dos campos não expostos exibindo valores mais elevados para os parâmetros avaliados, sendo as diferenças entre os campos mais ténues. Os resultados parecem indicar que alguns dos campos são mais favoráveis às populações de artrópodes, assim como às populações de lacertídeos. No entanto, em geral o tratamento com herbicidas não foi suficiente para explicar as variações encontradas nas comunidades de artrópodes. Outros factores não avaliados, como a estrutura da paisagem e do habitat e a composição florística podem ter contribuído para as diferenças encontradas.
Since the advent of agricultural intensification that agricultural practices such as pesticide usage have become associated with large scale biodiversity losses. However, semi-natural landscape elements associated, such as field margins, are thought to benefit biodiversity and lessen the damaging effects of agricul-ture by providing sources of food and refuges. Nevertheless, Pesticides, and herbicides in particular may also affect these areas and consequently impact the communities that depend on these structures. Because of high diversity and sensitivity to disturbance, arthropods are ideal animals to assess impacts of pesticides in these ecosystems. Furthermore, they play essential roles in trophic webs, constituting the major diet components for many vertebrate spe-cies that inhabit these ecosystems, such as the lizard Podarcis bocagei. In this study the effects of herbicides on arthropod communities of field margins were estimated, using pitfall traps and identification to a higher taxonomic level as a rapid assessment method of biodiversity. The study focused on the differ-ences between herbicide treated and non-treated margins in two distinct sea-sons, spring and autumn, being abundance, group richness, guild composition, abundance and size of prey items of Podarcis bocagei, the most common lizard in the area, determined for all fields. Differences were found between fields, but no clear negative effects were evi-denced as a consequence of herbicidal treatment. In spring, margins of ex-posed fields generally exhibited higher values for the assessed parameters, while in autumn, a distinct pattern arose, with fewer differences found between communities. Results seem to indicate that some of the fields may be more favourable to arthropod populations, as well as lacertid populations, but overall, herbicide treatment was not sufficient to explain the variation found in arthropod commu-nities. Other unassessed factors such as landscape and habitat structure and plant community composition could be contributing to the differences found.
40
Maeda, Tamaki. "Tomioka Tessai's narrative landscape : rethinking Sino-Japanese traditions /." Thesis, Connect to this title online; UW restricted, 2004. http://hdl.handle.net/1773/6235.
41
Johnson, Kristi Louise. "Benefits of Peer Tutoring Students with Disabilities in a Secondary School Setting." BYU ScholarsArchive, 2016. https://scholarsarchive.byu.edu/etd/6235.
Abstract:
Numerous studies have demonstrated the benefits peer tutoring provides to the tutee. However, studies measuring the benefits peer tutoring provides to the tutor are limited in quantity, detail, participant numbers and breadth. This study measured the benefits 151 peer tutors reported after peer tutoring for a semester in a special education class for students with severe disabilities. Peer tutors reported benefits in an essay response to the prompt: "What do you feel you have gained as a result of being a peer tutor?" The study identified the most common benefits obtained by peer tutors as measured by peer tutor generated responses of general peer-tutoring benefits. Findings suggest an extension of peer-tutoring benefits beyond the tutee exclusively and to the peer tutor.
42
O'Neal, Elizabeth Elaine. "Parent-child conversations about safety in children with and without ADHD." Diss., University of Iowa, 2018. https://ir.uiowa.edu/etd/6235.
Abstract:
Unintentional injury is a leading cause of childhood death and disability in the U.S. Notably, atypically-developing children are at greater risk for unintentional injuries than their typically developing peers. A key question is how to prevent these injuries in both typically- and atypically-developing children. As children gain independence, responsibility for the regulation of risky behaviors must transfer from parents to children. This likely happens in a variety of ways, one of which is parent-child conversations about safety. Past work has examined the content of parent-child safety conversations in typically-developing children and found that mothers use disagreements, supported by references to dangerous features of the activity and the adverse outcomes that might result, as a means of bringing children around to their own way of thinking about safety. Still unknown is what these conversations look like while parents and children are engaged in common, yet potentially unsafe activities, such as crossing roads with traffic. Nor do we know what these conversations look like in at-risk populations, such as children with ADHD. Evidence points to poor executive function and oppositionality, commonly comorbid with ADHD, as driving the increased injury risk in this population.
We assessed parent-child safety conversations in real time while parents and their children (with and without ADHD) were engaged in a simulated risky activity: crossing traffic-filled roads in our pedestrian simulator. Recorded conversations were coded and parents completed several questionnaires and diagnostic assessments regarding their and their child’s ADHD symptoms. While fewer symptomology differences related to parent-child conversations emerged than initially anticipated, many that did were primarily driven by oppositionality. These findings support previous claims that oppositionality increases injury risk in this population and contributes to poorer parent-child interactions.
43
Pruss, Emmet J. "Environmental Values and Landscape Architecture: A New Ecological Paradigm Study." DigitalCommons@USU, 2017. https://digitalcommons.usu.edu/etd/6235.
Abstract:
In recent decades, landscape design theory has been affected by an increase in pro-environmental values. Currently, concepts of ‘sustainability’ and ‘ecosystem services’ exert a strong influence. These concepts involve sustaining current human behaviors within the constraints of ecological limits and maintaining or enhancing the goods and services that humans receive from ecosystems, respectively. In this way, they are most characteristic of anthropocentric environmental worldviews with high degrees of concern for the instrumental values of ecosystems, which are indicative of shallow ecology.
Previous researchers have advanced theoretical characterizations of the environmental values of landscape architects in terms of environmental ethics. However, as of yet, no statistics-based model has been developed for this purpose. In order to advance such a model, and in the effort to further characterize the environmental values of landscape architects, two studies were performed. Both utilized data collected with the New Ecological Paradigm (revised-NEP) survey.
In the first study, a Shallow v. Deep Worldview model was used to characterize revised-NEP survey responses of landscape architecture students and alumni practitioners from Utah State University (USU) in terms of shallow or deep ecology. The results indicate that the groups exhibited essentially anthropocentric environmental values, which were characteristic of shallow ecology worldviews.
In the second study, the revised-NEP survey was used to assess the environmental worldviews of general education and landscape architecture students at USU. The results indicate that the landscape architecture students exhibited greater pro-environmental worldviews, which were correlated to differences in political orientation between the groups.
Overall, the results of the two studies support the notions that the study or practice of landscape architecture is correlated to greater pro-environmental values than are common for general higher education students, and that, in general, current landscape architecture students and practitioners exhibit environmental values that are characteristic of ecologically-concerned, yet essentially anthropocentric, shallow ecology worldviews.
44
Lewis, Tracy. "Obesity Epidemic in the Military: Implications for Veterans." ScholarWorks, 2019. https://scholarworks.waldenu.edu/dissertations/6235.
Abstract:
The purpose of this study was to examine the impact of overweight and obesity on veterans' careers. Obesity, once thought unproblematic for the military, is being recognized as a health concern that has expansive implications for the health and readiness of service men and women, as well as for veterans. There is an abundance of information on obesity within the general population, but research on the impact of obesity on military careers is limited. This quantitative, cross-sectional research study investigated how obesity is a challenge throughout a veteran's career, from enlistment to retirement, using an online survey to gather data related to demographics including rank, age, race/ethnicity, education level, marital status, and years of service. Data were analyzed using descriptive statistics, independent t tests, Levene's test, and the Mann-Whitney test. Results of the analyses showed that military veterans' overweight at separation contributes to their likelihood of adverse weight-related experiences while in the service, and that military veterans who are overweight or obese have more adverse weight-related experiences than those who were not obese when they separated from the military. Among respondents who were not overweight at separation, women had more adverse weight-related experiences than men. The findings of this study could change how military leaders and policy makers develop new programs, promoting a focus on the prevention of obesity rather than on causes of obesity. Understanding how overweight and obesity affect service members' careers could lead to increased appreciation of the importance of ensuring military readiness through interventions that address multiple levels of influence.
45
Arzenton, Valentina <1990>. "IL SISTEMA DEI CONTROLLI INTERNI NELLE IMPRESE DI ASSICURAZIONE." Master's Degree Thesis, Università Ca' Foscari Venezia, 2015. http://hdl.handle.net/10579/6235.
Abstract:
Le recenti crisi finanziarie hanno riaperto in dottrina accesi dibattiti sul tema della corporate governance e sulla necessità di introdurre regole più pervasive per scongiurare abusi ed irregolarità. Tra gli argomenti al centro di discussioni e di riforme si trovano anche i temi del risk management e del controllo interno, che oggigiorno rivestono una ruolo cruciale per garantire una buona amministrazione. I controlli interni (o endosocietari) sono formati da una serie di attività di verifica che competono ad appositi organi sociali (organo amministrativo ed organo di controllo) e a specifiche funzioni aziendali appartenenti all’organizzazione d’impresa (funzione di internal audit, di compliance e di risk management) ; la loro complessità procedurale risulta graduata in base alle caratteristiche dimensionali ed operative dell’impresa. Il miglioramento delle regole e dei controlli può rappresentare sicuramente un punto di forza per governare con successo le crisi d’impresa e per rafforzare la fiducia dei mercati, tuttavia occorre sempre equilibrare la necessità di prevenzione e controllo con il rischio di imporre alle imprese vincoli eccessivi ed inefficienti . Difatti, alla sempre più diffusa esigenza di prevenire le irregolarità e le false informazioni attraverso un irrobustimento dei controlli interni, si contrappone l’opinione di quanti ritengono che regole eccessivamente severe rischino di incidere negativamente sull’efficienza delle imprese e risultino comunque inidonee ad impedire anomalie e comportamenti elusivi. Con questa tesi ci si propone di spiegare la struttura dei controlli interni e di individuarne la loro specificità operativa; particolare attenzione verrà dedicata al tema dei controlli nelle imprese d'assicurazione. Tema che, viste le recenti modifiche del Regolamento IVASS n. 20/2008, rappresenta un argomento di attualità, nonchè un ottimo spunto di riflessione su alcuni aspetti di inefficienza operativa.
46
Williams, Hannah Jane. "Producing, trapping and controlling ultracold CaF molecules." Thesis, Imperial College London, 2018. http://hdl.handle.net/10044/1/62635.
Abstract:
From studies of fundamental physics to quantum technologies the production of ultracold molecules will have a huge impact across a range of applications. For many years laser cooling, which became an invaluable tool in cold atomic physics, was deemed to be too impractical for application to molecules. Nevertheless, laser cooling has now been demonstrated for a few molecular species. Using a frequency-chirped laser slowing technique, the velocity distribution of a pulse of CaF molecules is compressed and slowed from 180 m/s to about 10 m/s. These slow molecules are then captured in a magneto-optical trap. I present measurements that show how the number of molecules, the photon scattering rate, the oscillation frequency, damping constant, temperature, cloud size and lifetime depend on the key parameters of the magneto-optical trap, especially the intensity and detuning of the main cooling laser. The trap contains up to 2*10^4 molecules, the maximum photon scattering rate is 2.5*10^6 s-1 per molecule, the maximum oscillation frequency is 100 Hz, the maximum damping constant is 500 s^-1, and the minimum rms radius of the trapped cloud is 1.5 mm. A minimum temperature of 730 microkelvin is obtained by ramping down the laser intensity to lower values. To reach lower temperatures, the cloud is loaded into a blue-detuned optical molasses, which cools the molecules to 55 microkelvin, well below the Doppler-limiting temperature. I characterise the cooling process and suggest the sub-Doppler mechanisms responsible. These ultracold molecules are the optically pumped into a single quantum state, and coherently transferred between selected hyperfine components of the ground and first-excited rotational states. Finally, the ultracold, state-selected molecules are loaded into a magnetic trap that has a lifetime of about 1 s.
47
Куришко, О. О. "Система фінансового моніторингу в Україні." Thesis, Дніпропетровський національний університет ім. Олеся Гончара, 2010. http://essuir.sumdu.edu.ua/handle/123456789/62535.
Abstract:
На даний час не існує визначення системи фінансового моніторингу з методологічної точки зору, оскільки в законодавстві визначається лише поняття системи фінансового моніторингу відповідно до відповідальних суб’єктів фінансового моніторингу.
48
Лисянська, О. О. "Фінансові результати діяльності банків України в посткризовий період." Thesis, Українська академія банківської справи Національного банку України, 2011. http://essuir.sumdu.edu.ua/handle/123456789/62935.
Abstract:
Стаття містить огляд фінансових результатів діяльності банків України в посткризовий період.This article contains a review of financial performance of banks in Ukraine in the post-crisis period.
Чистий збиток банківської системи у першому півріччі 2011 року склав 1,06 млрд. грн.; обсяг валових і процентних доходів – 67,9 млрд. грн. і 54,9 млрд. грн. відповідно. Зменшення збитків у першому півріччі 2011 року було наслідком розширення масштабів діяльності більшості банків України при підтримці помірних показників операційної ефективності.
49
Korzh, K. R., and S. V. Mikhno. "Patriotic motivation in advertising slogans as a reflection of political changes in the country." Thesis, Sumy State University, 2017. http://essuir.sumdu.edu.ua/handle/123456789/62835.
Abstract:
Advertising and marketing use patriotism for commercial purposes. Historical events and personalities, the achievements of past years create a new image of the prosperity of a country in advertising. This method builds the fantom brand and such advertising is intended for naïve or emotional audience. Patriotism towards the Fatherland refers to emotional advertising motives, for the Ukrainian mentality this motive is dominant in recent years.
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Коломієць, Світлана Володимирівна, Светлана Владимировна Коломиец, and Svitlana Volodymyrivna Kolomiiets. "Дослідження межі стійкості періодичних коливань у моделі лазера з безінерційним фільтром." Thesis, Національний технічний університет України «Київський політехнічний інститут ім. І. Сікорського, 2006. http://essuir.sumdu.edu.ua/handle/123456789/62735.