Dissertations / Theses on the topic 'Gai2'
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Dulich, Felix. "N-Myristoyltransferase 2-abhängig induzierbare Myristoylierung von PRS4, p22 und Gai2." Diss., lmu, 2009. http://nbn-resolving.de/urn:nbn:de:bvb:19-110156.
Trouillet, Anne-Charlotte. "Rôle des mécanismes de signalisation olfactive impliquant Gai2 dans le contrôle des comportements socio-sexuels." Electronic Thesis or Diss., Tours, 2021. http://www.theses.fr/2021TOUR4018.
In most mammals, the olfactory system drives socio-sexual behaviors through the detection of chemosensory information. Sensory neurons of the olfactory system detect these signals through dedicated G protein-coupled receptors, each expressed by a single ensemble of neurons. Chemosignals relevant for social communication are mainly sensed by the vomeronasal organ in which at least two populations of receptor cells detect pheromones through two families of G-protein-coupled receptors, V1Rs and V2Rs. The binding of ligands to the receptor (V1R or V2R) has been proposed to activate the corresponding G protein, Gai2 and Gao, respectively. Gao-expressing neurons have been shown to detect peptides and proteins modulating several social behaviors. Genetic and behavioral studies on mice also point to a potential role of Gai2-expressing neurons as transducers of the olfactory information controlling reproductive physiology and behaviors. However, the exact contribution of this signaling pathway remains elusive. Therefore, the main goal of this project is to determine how socio-sexual behaviors are controlled by the olfactory system, particularly by the V1R-Gai2-expressing neurons of the vomeronasal organ.To address this point, we used the Cre-lox system to generate a conditional knockout mouse in which the deletion of Gai2 gene is restricted to olfactory sensory neurons. First, we evaluated the functional role of Gai2 in the process of VSNs signal transduction using live-cell calcium imaging experiments. We first established that Gai2 is necessary for the detection of small organic molecules and sulfated steroids in V1Rs-expressing VSNs. Second, we investigated the role of Gai2/V1Rs-expressing VSNs in displaying reproductive and social behaviors. We tested sexual, parental, and aggressive behaviors of male and female mice deficient for Gai2 and identified brain regions transforming the olfactory information into a behavioral decision. We observed an influence of Gai2-expressing VSNs in a sex-dependent manner with distinctive traits for each behavior. We found that the deletion of Gai2 in VSNs played a central role in male aggressive behavior by increasing territorial aggression and reducing infant-directed aggression. However, female aggression remained unaltered in the absence of Gai2. Parenting was also differentially affected by Gai2 deletion in each sex, activated in males and inhibited in females. Further, social experience changed the implication of Gai2 vomeronasal signaling in female sexual behavior, while in males, Gai2-deletion had no effect on sexual behavior before or after experience. Last, we identified a new role of Gai2-expressing VSNs in avoidance behaviors mediated by predators and sick-conspecifics aversive olfactory cues.All species continuously integrate environmental information and adapt their responses accordingly. This project aims to shed light on neural mechanisms underlying the processing of olfactory chemosignals in order to understand how peripheral olfactory inputs interact with neural centers controlling the behavioral responses. Understanding these mechanisms is of broad relevance and may lead to new insights in the comprehension of behavioral disorders and the development of new breeding strategies in domestic animals
Giguère, Nicholas. "Les périodiques gais au Québec (1971-2009) : vecteurs de reconnaissance et de légitimation d’une communauté." Thèse, Université de Sherbrooke, 2018. http://hdl.handle.net/11143/11951.
Elliesie, Hatem, Alexander Gramsch, and Peter Scholz. "GAIR-Mitteilungen." Gesellschaft für Arabisches und Islamisches Recht, 2009. https://ul.qucosa.de/id/qucosa%3A11115.
Elliesie, Hatem, Peter Scholz, and Alexander Gramsch. "GAIR-Mitteilungen." Gesellschaft für Arabisches und Islamisches Recht, 2010. https://ul.qucosa.de/id/qucosa%3A11116.
Elliesie, Hatem, Peter Scholz, and Alexander Gramsch. "GAIR-Mitteilungen." Gesellschaft für Arabisches und Islamisches Recht, 2009. https://ul.qucosa.de/id/qucosa%3A11224.
Elliesie, MLE Hatem, Peter Scholz, and Alexander Gramsch. "GAIR-Mitteilungen." Gesellschaft für Arabisches und Islamisches Recht e.V, 2010. https://ul.qucosa.de/id/qucosa%3A11225.
Elliesie, Hatem, Peter Scholz, and Alexander Gramsch. "GAIR-Mitteilungen." Gesellschaft für arabisches und islamisches Recht e.V, 2011. https://ul.qucosa.de/id/qucosa%3A11284.
Elliesie, Hatem, and Peter Scholz. "GAIR-Mitteilungen." Gesellschaft für Arabisches und Islamisches Recht, 2012. https://ul.qucosa.de/id/qucosa%3A11657.
Elliesie, Hatem, Peter Scholz, and Beate Backe. "GAIR-Mitteilungen." Gesellschaft für Arabisches und Islamisches Recht e.V. (GAIR), 2013. https://ul.qucosa.de/id/qucosa%3A12189.
Elliesie, Hatem, Peter Scholz, and Beate Backe. "GAIR-Mitteilungen." Gesellschaft für Arabisches und Islamisches Recht e.V. (GAIR), 2014. https://ul.qucosa.de/id/qucosa%3A12954.
Scholz, Peter, Hatem Elliesie, and Beate Backe. "GAIR-Mitteilungen." Gesellschaft für Arabisches und Islamisches Recht e.V. (GAIR), 2015. https://ul.qucosa.de/id/qucosa%3A13687.
Mjaaland, Bendik Bjørklid. "Gait Mimicking : Attack Resistance Testing of Gait Authentication Systems." Thesis, Norwegian University of Science and Technology, Department of Telematics, 2009. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-8977.
Biometric technology is rapidly evolving in today's society. A large part of the technology has its roots hundreds, or even thousands of years back in time, while other parts are new and futuristic. Research suggest that individuals can be identified by the way they walk, and this kind of biometrics, gait biometrics, is a rather new and definitely intriguing field. However, the technology is far from mature; the performance is not generally competitive to other biometrics, and it has not been thoroughly tested security-wise. This thesis aims to test the security strength of gait biometrics. It will focus on imitation, or mimicking of gait. The bottom line question is whether it is possible to learn to walk like someone else. If this turns out to be easy, it will have a severe effect on the potential of gait as an authentication mechanism in the future. The report is logically twofold. In one part, the reader is brought up to speed on the field of gait biometrics, and a software tool for gait authentication is developed and presented. Second, an experiment is conducted, involving extensive training of test subjects, and using sources of feedback like video and statistical analysis. The data is analyzed by regression, and the goal is to determine whether or not the participants are increasing their mimicking skills, or simply put: if they are learning. The first part of the experiment involves 50 participants that are successfully enrolled using the developed software. The results compete with state of the art gait technology, with an EER of 6.2%. The rest of the experiment is related to mimicking, and the thesis discovers that six out of seven participants seem to have a natural boundary to their performance, a "plateau", forcing them back whenever they attempt to improve further. The location of this plateau predetermines the outcome of an attack; for success it has to lie below the acceptance threshold corresponding to the EER. Exactly one such boundary is identified for almost all participants, but some data also indicate that more than one plateau can exist simultaneously. The final result however, is that a very limited amount of learning is present, not nearly enough to pose a threat to gait biometrics. Gait mimicking is a hard task, and our physiology works against us when we try to adopt specific gait characteristics.
Sabir, Azhin Tahir. "Human gait recognition under neutral and non-neutral gait sequences." Thesis, University of Buckingham, 2015. http://bear.buckingham.ac.uk/115/.
Corr, Sandra A. "Avian gait analysis." Thesis, University of Glasgow, 1999. http://theses.gla.ac.uk/6629/.
Datta, Ankur. "Gait Based Recognition." Honors in the Major Thesis, University of Central Florida, 2004. http://digital.library.ucf.edu/cdm/ref/collection/ETH/id/436.
Bachelors
Engineering and Computer Science
Computer Science
Levacher, Élodie. "Le gain manqué." Paris 1, 2010. http://www.theses.fr/2010PA010316.
O'Leary, Ryan T. "Being and Gaia." Diss., University of Iowa, 2012. https://ir.uiowa.edu/etd/2955.
Serries, Dirk. "(GaIn)(AsP)- und (GaIn)(AsN)-Halbleiterheterostrukturen und ihre Anwendung in Diodenlasern." [S.l. : s.n.], 2002. http://www.freidok.uni-freiburg.de/volltexte/590.
Skaldebø, Aleksander Vatn. "The Effect of Gain Saturation in a Gain Compensated Perfect Lens." Thesis, Norwegian University of Science and Technology, Department of Electronics and Telecommunications, 2009. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-9921.
Perfect lenses operating in the near visible spectrum has only recently been introduced, and these kind of metamaterials seem to have a large potential. One problem encountered with these perfect lenses are exceedingly large intrinsic losses, making them impractical for use in applications. This project has explored some of the limitations in using gain to compensate for these losses, specifically the effect of gain saturation has been considered. Gain saturation has been proven to limit the maximum parallel spatial frequency that can be reproduced by the lens. Even though, it has been shown that amplification has the potential to increase the resolution limit by a measurable factor. In the case of several waves traversing the lens simultanously, the critical factor is how much of the total amplitudes lies in waves close to the resolution limit. Waves with relatively small parallel spatial frequencies requires small amplifications, and those with high parallel spatial frequencies will get attenuated or reflected almost immediately, meaning both these types contribute little to gain saturation.
Kagawa, Takahiro, and Yoji Uno. "Gait pattern generation for a power-assist device of paraplegic gait." IEEE, 2009. http://hdl.handle.net/2237/13886.
Hackley, Barbara. "Prenatal Weight Gain: Relationship between Food Cravings and Prenatal Weight Gain." Diss., The University of Arizona, 2014. http://hdl.handle.net/10150/338959.
Wagge, Jordan Rose. "Contributions of response gain and contrast gain to human spatial pattern masking." Oxford, Ohio : Miami University, 2009. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=miami1250003782.
Riska, Krystal, Faith W. Akin, and Owen D. Murnane. "Reliability of Regression Gain Versus Instantaneous Gain During Video Head Impulse Testing." Digital Commons @ East Tennessee State University, 2016. https://dc.etsu.edu/etsu-works/1868.
Johansson, Markus, and Lovisa Åkesson. "Brain Gain i Nederländerna." Thesis, Linköping University, Department of Management and Economics, 2001. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-783.
Bakgrund: Migration är ett vanligt förekommande fenomen idag vare sig den är ofrivillig eller frivillig. Mycket forskning har gjorts om den ofrivilliga flyktingmigrationen men ytterst lite forskning har fokuserat på den frivilliga migrationen, då i synnerhet gällande högutbildade individer med special kompetens.
Avgränsningar: Vi har begränsat oss till att studera de mer rationella orsakerna till inflödet av utländsk kompetens, vilka anses vara lättare för en stat att påverka. Vidare så har vi fokuserat oss mot de individer som anses vara högutbildade eller inneha en speciell eftertraktad kompetens. Studien är också begränsad till att studera migration av högutbildad arbetskraft mellan i-länder.
Syfte: Syftet med denna uppsats är att undersöka orsakerna till det nettoinflöde av utländsk kompetens till ett visst land vilka kan påverkas av statliga åtgärder. I vårt fall har vi använt oss av Nederländerna som ett studieobjekt i vår undersökning för att se vad den nederländska staten gjort för att attrahera utländsk kompetens. Genomförande: Uppsatsen baseras på empiriska resultat som insamlades under en veckas uppehåll i Nederländerna. Vi har också använt oss av litteratur och artiklar angående migration av högutbildade. Viss statistik data angående Nederländerna har också använts.
Resultat: Vi har funnit att orsakerna till migration av högutbildade individer styrs av både rationella och irrationella faktorer som mer eller mindre kan påverkas av statliga åtgärder. Vad gäller Nederländerna så har man inte tagit några åtgärder med det explicita syftet att attrahera utländsk kompetens. Detta har blivit en positiv konsekvens av den nederländska statens försök att attrahera utländska direktinvesteringar. Slutligen har vi funnit att"brain drain"inte nödvändigtvis är en negativ företeelse på lång sikt.
Background: It is a common phenomenon for people today to leave their country of origin to move to another country. Involuntary movements have been the focus of much research, however little has been done to explain why voluntary migration takes place specifically amongst highly skilled individuals.
Purpose: The purpose of this report is therefore to investigate the reasons for the net inflow of foreign skilled workforce to a country, which a government can influence. In doing so we have made use of the Netherlands as a case study.
Limitations: We have focused on the inflow of foreign competence for more rational reasons, which a country's government could have some influence upon. Furthermore, we will concentrate on those individuals who are considered to be highly educated or specialists. The study is limited to the migration of skilled labour from one industrialised country to another.
Manner of Proceedings: The report is based on empirical results collected during a weeks visit to the Netherlands. We have also made use of literature and articles treating the brain drain-brain gain phenomenon. Some use of statistics regarding the Netherlands has also been used.
Results: We have found that the reasons for the migration of highly skilled labour is dependent on both rational and irrational factors of influence. The possibility for a government to influence any of these issues varies. Regarding the Netherlands nothing has been done with the explicit intent of attracting foreign competence, this has been a positive side effect in the attempt to attract FDI. Finally we have found that brain drain is not necessarily a bad phenomenon in the long run.
Ma, Weizen. "Instrumentation of Gait Analysis." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-28759.
Graham, Richard Douglas. "Ring laser gain media." Thesis, University of Canterbury. Physics, 2006. http://hdl.handle.net/10092/1377.
Sigurnjak, S. K. "Biometric verification using gait." Thesis, Manchester Metropolitan University, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.592681.
Khan, Mohammad Jalal. "Gain-distributed feedback filters." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/39063.
Includes bibliographical references (leaves 151-154).
by Mohammad Jalal Khan.
M.Eng.
Lee, Lily 1971. "Gait analysis for classification." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/8116.
Includes bibliographical references (p. 121-124).
This thesis describes a representation of gait appearance for the purpose of person identification and classification. This gait representation is based on simple localized image features such as moments extracted from orthogonal view video silhouettes of human walking motion. A suite of time-integration methods, spanning a range of coarseness of time aggregation and modeling of feature distributions, are applied to these image features to create a suite of gait sequence representations. Despite their simplicity, the resulting feature vectors contain enough information to perform well on human identification and gender classification tasks. We demonstrate the accuracy of recognition on gait video sequences collected over different days and times, and under varying lighting environments. Each of the integration methods are investigated for their advantages and disadvantages. An improved gait representation is built based on our experiences with the initial set of gait representations. In addition, we show gender classification results using our gait appearance features, the effect of our heuristic feature selection method, and the significance of individual features.
by Lily Lee.
Ph.D.
Ling, Carol Carlson. "Weight gain during pregnancy: the characteristics of women who experience excess weight gain." Thesis, Virginia Tech, 1990. http://hdl.handle.net/10919/42134.
Weight gain during pregnancy, relationships among body image, body weight standards, and attitudes toward weight gain were investigated. Weight gain recommendations, based on preconceptional weight status (PCWS) reflected current practices in prenatal care at Sentara Norfolk General Hospital, Norfolk, VA, and provided a basis on which to categorize weight gain as inadequate, appropriate, and excess. Women who experienced excess weight gain (EWG) were compared to those who experienced appropriate weight gain (AWG) or inadequate weight gain (IWG) to identify their characteristics. Of the 138 women studied, 54 experienced EWG. Weight gain recommendations for overweight women were similar to those for normal weight women, 20-25% PCW. Obese women who lost weight or gained less than 15 pounds were identified with the inadequate weight gain group.
Master of Science
Tioli, Gaia <1989>. "Macrophage respiratory supercomplexes and metabolic reprogramming upon anti-bacterial immunity." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amsdottorato.unibo.it/10009/1/Gaia%20Tioli%20-%20PhD%20thesis.pdf.
Hong, Jie. "Human gait identification and analysis." Thesis, Brunel University, 2012. http://bura.brunel.ac.uk/handle/2438/7115.
O'Mullane, William. "Implementing the Gaia Astrometric Solution." Doctoral thesis, Universitat de Barcelona, 2012. http://hdl.handle.net/10803/83861.
Esta tesis presenta el marco numérico y computacional para la solución astrométrica Gaia. También cubre las consideraciones astrofísicas relativas a la solución y los aspectos relacionados con la gestión de la implementación de un sistema tan complejo.
Helmersson, Anders. "Methods for robust gain scheduling." Doctoral thesis, Linköpings universitet, Reglerteknik, 1995. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-75513.
This thesis considers the analysis of systems with uncertainties and the design of controllers to such systems. Uncertainties are treated in a relatively broad sense covering gain-bounded elements that are not known a priori but could be available to the controller in real time. The uncertainties are in the most general case norm-bounded operators with a given block-diagonal structure. The structure includes parameters, linear time-invariant and time-varying systems as well as nonlinearities. In some applications the controller may have access to the uncertainty, e.g. a parameter that depends on some known condition. There exist well-known methods for determining stability of systems subject to uncertainties. This thesis is within the framework for structured singular values also denoted by μ. Given a certain class of uncertainties, μ is the inverse of the size of the smallest uncertainty that causes the system to become unstable. Thus, μ is a measure of the system's "structured gain". In general it is not possible to compute μ exactly, but an upper bound can be determined using efficient numerical methods based on linear matrix inequalities. An essential contribution in this thesis is a new synthesis algorithm for finding controllers when parametric (real) uncertainties are present. This extends previous results on μ synthesis involving dynamic (complex) uncertainties. Specifically, we can design gain scheduling controllers using the new μ synthesis theorem, with less conservativeness than previous methods. Also, algorithms for model reduction of uncertainty systems are given. A gain scheduling controller is a linear regulator whose parameters are changed as a function of the varying operating conditions. By treating nonlinearities as uncertainties, μ methods can be used in gain scheduling design. In the discussion, emphasis is put on how to take into consideration different characteristics of the time-varying properties of the system to be controlled. Also robustness and its relation with gain scheduling are treated. In order to handle systems with time-invariant uncertainties, both linear systems and constant parameters, a set of scalings and multipliers are introduced. These are matched to the properties of the uncertainties. Also, multipliers for treating uncertainties that are slowly varying, such that the rate of change is bounded, are introduced. Using these multipliers the applicability of the analysis and synthesis results are greatly extended.
Faghfoor, Maghrebi Mohammad. "Information gain in quantum theory." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/2724.
Nicolaou, Maria. "Gait adaptations to transverse slopes." Thesis, McGill University, 2001. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=32931.
Edelman, James. "Gain-based awards for wrongs." Thesis, University of Oxford, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.365658.
Johnson, Linda Carole. "Planning gain in Tower Hamlets." Thesis, Brunel University, 1988. http://bura.brunel.ac.uk/handle/2438/5767.
Blagorodnova, Nadejda. "Characterising the Gaia transient sky." Thesis, University of Cambridge, 2016. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.709492.
Fiorenza, John Kenneth 1977. "Gain compensated sample and hold." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/87311.
Includes bibliographical references (p. 71-72).
by John Kenneth Fiorenza.
S.M.
Roberts, Michael (Michael Henry) 1980. "A robot for gait rehabilitation." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/34562.
Includes bibliographical references (p. 216-220).
After a stroke, persons suffer from neurological impairments that affect gait, and so require rehabilitation to regain ambulatory function. While 82% of patients recover the ability to walk, current methods including physiotherapy and partial body-weight supported treadmill training (PBWSTT) are monotonous and require intense therapist effort. The Mechanized Gait Trainer and the LOKOMAT are two robotic devices that have been developed to improve gait rehabilitation, but neither provides the facilitation of pelvis movements afforded by traditional methods. In addition, neither device is truly backdrivable. As shown by Hogan and Krebs, backdrivable, impedance-controlled robots are ideal for rehabilitation because of their stable interaction properties. Robots for the arm/shoulder, wrist, ankle, and hand have already been developed. This thesis describes the design of a robot for gait rehabilitation through the facilitation of pelvis movements. Four degrees of freedom (DOF) are actuated: vertical, lateral, and frontal translations as well as the rotation about the vertical axis. Vertical forces support part of the patient's weight. Lateral forces assist the weight shift from stance leg to swing leg and are a part of physiotherapy and treadmill training.
(cont.) Frontal forces help pace the subject as on a treadmill. Pelvic rotations can impart energy into the swing leg without direct actuation of the hip and knee muscles. A four DOF mechanism was designed to control these movements, consisting of a three-DOF planar linkage with a vertical prismatic translation. A mockup of the configuration was designed and tested to show that the non-actuated pelvis DOFs are not adversely affected by the device. Design calculations include finding the optimal linkage configuration, selecting ballspline shafts for the vertical DOF, selecting actuators, and designing the robot arm cross-sections and joints. A final design for the four-DOF module is presented.
by Michael H. Roberts.
S.M.
Ariyanto, Gunawan. "Model-based 3D gait biometrics." Thesis, University of Southampton, 2013. https://eprints.soton.ac.uk/352080/.
DeVylder, Jordan. "Sensory gain control at fixation." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/26656.
Committee Chair: Corballis, Paul; Committee Member: Schumacher, Eric; Committee Member: Spieler, Daniel. Part of the SMARTech Electronic Thesis and Dissertation Collection.
Piesciorovsky, Emilio Carlos. "Heat gain from power panelboard." Thesis, Manhattan, Kan. : Kansas State University, 2009. http://hdl.handle.net/2097/2348.
Houtkooper, Linda, Jaclyn Maurer, and Veronica Mullins. "Weight Gain Tips for Athletes." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2006. http://hdl.handle.net/10150/146639.
To gain weight, athletes need to consume more calories than they use. This weight gain will include water, fat, and protein in muscle. To limit the amount of fat gain and increase muscle gains, athletes need to use effective exercise training and nutrition programs.
Compton, Kirsten. "Student Ambassadors Gain Leadership Experience." College of Agriculture, University of Arizona (Tucson, AZ), 2004. http://hdl.handle.net/10150/295856.
Ramakrishnan, Tyagi. "Rehabilitating Asymmetric Gait Using Asymmetry." Scholar Commons, 2017. https://scholarcommons.usf.edu/etd/7438.
Hall, Courtney D. "Assessment of Balance and Gait." Digital Commons @ East Tennessee State University, 2018. https://dc.etsu.edu/etsu-works/5378.
Roeder, Luisa. "Cortical control of human gait." Thesis, Queensland University of Technology, 2016. https://eprints.qut.edu.au/101537/1/Luisa_Roeder_Thesis.pdf.