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Dissertations / Theses on the topic 'MOOC systems'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Knöös, Johanna, and Siri Amanda Rääf. "Sentiment Analysis of MOOC learner reviews : What motivates learners to complete a course?" Thesis, Linnéuniversitetet, Institutionen för informatik (IK), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-105919.

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In the last decade, development of Information and Communication Technology (ICT) thatsupports online learning has increased the demand for e-learning and Massive Open OnlineCourses (MOOCs). Despite their increased popularity, MOOCs are struggling with highdropout rates and only a small percentage of learners complete the courses they enrolled in. Thepurpose of this thesis is to gain knowledge about MOOC learner behaviour. The aim of thestudy is to identify the motivations of learners and how these differ between learners whocompleted a course and those who dropped out. Research on MOOC learne

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2

Gulin, Povel, and Erik Nguyen. "Designförslag till digitala lärplattformar i syfte att att bidra till en känsla av autonomi." Thesis, Högskolan i Halmstad, Akademin för informationsteknologi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-43881.

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Det är allt vanligare att personer använder sig av digitala lärplattformar för att lära sig nyafärdigheter. Lärplattformar gör det möjligt för personer att lära sig i sin egen takt och utan attbehöva infinna sig på en specifik plats vid specifika tillfällen, så länge denne har tillgång till endator och internetuppkoppling. Dessa digitala lärplattformar av typen Massive Open OnlineCourse eller MOOC har dock designats med ett linjärt upplägg i sin kursstruktur som inte tillåteranvändare att divergera från det utstakade spåret. Då det även rör sig om ett obegränsat antalanvändare som läser kurser

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3

Frank, Oscar. "Gamification inom MOOCs : Framsteg och utmaningar." Thesis, Uppsala universitet, Institutionen för informatik och media, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-435159.

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Den här uppsatsen utforskar tidigare litteratur på gamification inom Massive Online OpenCourses (MOOCs) för att undersöka hur gamification uppfattas som ett verktyg i MOOCs.Analysverktyget som används är en kvantitativ innehållsanalys som avgränsar genomsökningentill 17 publikationer om gamification i MOOC. I korthet visar resultatet att gamification harpotential att främja undervisning i MOOCs. Majoriteten av litteraturen är positiv tillgenomförandet av gamification. Denna uppsats föreslår, baserat på resultatet, att socialinteraktion är ett mycket viktigt element för eleverna att hålla sig m

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4

Johansson, Sara, and Inka Frolov. "An Adaptable Usability Checklist for MOOCs : A usability evaluation instrument for Massive Open Online Courses." Thesis, Umeå universitet, Institutionen för informatik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-90330.

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The purpose of this study was to develop a list of usability guidelines, i.e. a usability checklist, which can assist in evaluating the usability of Massive Open Online Courses (MOOCs) user interfaces. Interviews were conducted to help understand their context of use and to find design focus points for the evaluation of MOOCs interface. These design focus points were then inspected for usability issues with Jakob Nielsen’s usability inspection method - heuristic evaluation - using author’s own set of 10 usability heuristics. The study reveals two main findings. Firstly, the context of use of M

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5

Gill, Arshdeep Singh. "Thermal Evolution of Moon." DigitalCommons@CalPoly, 2017. https://digitalcommons.calpoly.edu/theses/1726.

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In August, 2014 three experiments were conducted using infrared systems deployed at White Mountain Research center, CA. The data was acquired for the whole month of August. Teams of 3-4 students from Cal Poly San Luis Obispo and UC Santa Barbara were stationed at the research center for 2-3 days to operate the equipment. The three experiments were:(1) creating spatial-temporal time series of lunar surface temperatures;(2) identifying atmospheric meteor trails;(3) search for meteor impacts on the Moon surface. Out of the three this thesis focusses on experiment 1 and the results from this exper

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6

Oliver, John M. "Multi-objective optimisation methods applied to complex engineering systems." Thesis, Cranfield University, 2014. http://dspace.lib.cranfield.ac.uk/handle/1826/11707.

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This research proposes, implements and analyses a novel framework for multiobjective optimisation through evolutionary computing aimed at, but not restricted to, real-world problems in the engineering design domain. Evolutionary algorithms have been used to tackle a variety of non-linear multiobjective optimisation problems successfully, but their success is governed by key parameters which have been shown to be sensitive to the nature of the particular problem, incorporating concerns such as the number of objectives and variables, and the size and topology of the search space, making it hard

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7

Boyer, Sebastien (Sebastien Arcario). "Transfer learning for predictive models in MOOCs." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/104832.

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Thesis: S.M. in Technology and Policy, Massachusetts Institute of Technology, School of Engineering, Institute for Data, Systems, and Society, Technology and Policy Program, 2016.<br>Thesis: S.M., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2016.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 85-87).<br>Predictive models are crucial in enabling the personalization of student experiences in Massive Open Online Courses. For successful real-time interventions, these models must be transferable - that is,

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8

Mazzoni, Antonella. "Mood Glove : enhancing mood in film music through haptic sensations for an enriched film experience." Thesis, Queen Mary, University of London, 2018. http://qmro.qmul.ac.uk/xmlui/handle/123456789/39757.

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This research explores a new way of enhancing audience experience in film entertainment, presenting the design and implementation of a wearable prototype system that uses haptic sensations to intensify moods in lm music. The aim of this work is to enrich the musical experience of film audiences and might also have implications on the hearing-impaired, providing them with a new enhanced emotional experience while watching a movie. Although there has been previous work into music displays of a visual and haptic nature, and on the importance of music in film, there is no documented research on mu

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9

Hong, SeungBum S. M. Massachusetts Institute of Technology. "Design of power systems for extensible surface mobility systems on the Moon and Mars." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/42193.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2007.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Includes bibliographical references (p. 99-101).<br>This thesis presents the power system model description and sample studies for extensible surface mobility systems on the Moon and Mars. The mathematical model of power systems for planetary vehicles was developed in order to estimate power system configuration with given mission parameters and

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10

Meyers, Owen Craigie. "A mood-based music classification and exploration system." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/39337.

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Thesis (S.M.)--Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2007.<br>Includes bibliographical references (p. 89-93).<br>Mood classification of music is an emerging domain of music information retrieval. In the approach presented here features extracted from an audio file are used in combination with the affective value of song lyrics to map a song onto a psychologically based emotion space. The motivation behind this system is the lack of intuitive and contextually aware playlist generation tools available to music listeners. T

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11

Papavramidis, Konstantinos. "Evaluation of Potential Propulsion Systems for a Commercial Micro Moon Lander." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-263954.

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In the advent of Space 4.0 era with the commercialization and increased accessibility of space, a requirement analysis, trade-off options, development status and critical areas of a propulsion system for a Commercial Micro Moon Lander is carried out. An investigation of a suitable system for the current mission is examined in the frame of the ASTRI project of OHB System AG and Blue Horizon. Main trajectory strategies are being investigated and simulations are performed to extract the ∆V requirements. Top-level requirements are extracted which give the first input for the propulsion design. An

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12

Pham, Thi Hoa, and n/a. "Interrogative mood in English and Vietnamese : a systemic contrastive analysis." University of Canberra. Information Sciences, 1985. http://erl.canberra.edu.au./public/adt-AUC20060725.105609.

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The purpose of this study is to present a contrastive analysis of the different types of interrogative sentences in English and Vietnamese including their structures and meanings. It is also hoped that the result of this study will be of some use to English teachers in Vietnam in their classroom teaching and in their preparation of teaching materials. It may also be useful to Vietnamese students who are learning English, especially when learning the English interrogative mood. Hitherto, there have been different models of description of language, but the systemic model is considered to be one

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13

Hill, Glen. "Phase equilibria in the La₂O₃-MoO₂-MoO₃ and Y₂O₃-M₀O₂-M₀O₃ systems." Thesis, Georgia Institute of Technology, 2002. http://hdl.handle.net/1853/20744.

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14

Wietreck, Niklas. "Towards a new generation of movie recommender systems: A mood based approach." Thesis, Uppsala universitet, Informationssystem, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-353805.

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The emergence of the content overloaded internet creates a lot of new challengesfor users and service providers a like. To minimize the displayed amount of contentlike movies, music, or other products service providers like Netﬂix or Amazonare using recommender systems which aim to guide the user trough the availableinformation. These systems collect knowledge about the user and try to deliver personalized experiences. Most of the state-of-the-art recommender systems are using acontent focused approach but often fail to grasp the nature of users’ desires. Therefore,a mood-as-input model is dev

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15

Skinner, Robert Edmid. "Feasibility study of a moon sensor for satellite attitude determination." Thesis, Stellenbosch : Stellenbosch University, 2005. http://hdl.handle.net/10019.1/50356.

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Thesis (MScEng)--University of Stellenbosch, 2005.<br>ENGLISH ABSTRACT: The purpose of this study was to investigate the feasibility of a moon sensor as an alternative or supplemental sensor to supply attitude information to a satellite. The visibility of the moon was evaluated with regards to that of the sun from a satellite (i.e. the feasibility of the moon sensor is compared to that of a sun sensor). An algorithm was developed to calculate the center of the moon, regardless of phase or rotation, to offer increased accuracy of the center of the moon. The accuracy of this algorithm and

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16

Häidkind, Riina. "Monoaminergic mechanisms in mood-associated behaviours and neurochemistry in rats /." Tartu : Tartu University Press, 2004. http://dspace.utlib.ee/dspace/bitstream/10062/704/5/Haidkind.pdf.

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17

Brawner, Keith. "Modeling Learner Mood in Realtime through Biosensors for Intelligent Tutoring Improvements." Doctoral diss., University of Central Florida, 2013. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5774.

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Computer-based instructors, just like their human counterparts, should monitor the emotional and cognitive states of their students in order to adapt instructional technique. Doing so requires a model of student state to be available at run time, but this has historically been difficult. Because people are different, generalized models have not been able to be validated. As a person's cognitive and affective state vary over time of day and seasonally, individualized models have had differing difficulties. The simultaneous creation and execution of an individualized model, in real time, rep

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18

Cvetkovic, Dragan. "Evolutionary multi-objective decision support systems for conceptual design." Thesis, University of Plymouth, 2000. http://hdl.handle.net/10026.1/2328.

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In this thesis the problem of conceptual engineering design and the possible use of adaptive search techniques and other machine based methods therein are explored. For the multi-objective optimisation (MOO) within conceptual design problem, genetic algorithms (GA) adapted to MOO are used and various techniques explored: weighted sums, lexicographic order, Pareto method with and without ranking, VEGA-like approaches etc. Large number of runs are performed for findingZ Dth e optimal configuration and setting of the GA parameters. A novel method, weighted Pareto method is introduced and applied

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19

Ghanbari, Ramez. "Impact of Medications Used in the Treatment of Mood Disorders on Monoaminergic Systems." Thesis, Université d'Ottawa / University of Ottawa, 2011. http://hdl.handle.net/10393/19829.

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While selective serotonin (5-HT) reuptake inhibitors (SSRIs) are utilized as the first-line strategy in treating depression, new approaches are still desired. Using in vivo electrophysiological techniques, the effects of co-administration of bupropion with the SSRI escitalopram on the firing rate of dorsal raphe 5-HT and locus coeruleus norepinephrine (NE) neurons were investigated. Escitalopram significantly decreased the firing of 5-HT and NE neurons at day 2. The 5-HT firing rate, unlike that of NE, recovered after the 14-day escitalopram regimen. Bupropion did not increase 5-HT firing but

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20

Moeed, Naveed S. "Dust clouds at Lâ‚„ and Lâ‚… in the earth moon system?" Thesis, University of Kent, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.269103.

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21

Kidron, Matias. "Detecting minimoons in the Earth-Moon system with microsatellite compatible technologies." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-247623.

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Minimoons, Earth’s temporarily-captured orbiters, are excellent candidates for asteroidmining technology demonstrations and general asteroid studies because of their relativelylong stay in the vicinity of Earth. In this thesis, microsatellite compatible surveillancetechnologies are discussed and the suitability of various locations in the Earth-Moon systemfor minimoon surveillance is examined. This is done to acquire knowledge on whichtype of an orbit a minimoon-surveying-microsatellite could be placed on.The instantaneous visible fraction of the minimoon steady-state population is the figureo

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22

Sterkaj, Fiorentina. "Retrieval induced forgetting in depression and schizophrenia : role of mood and the cholinergic system." Thesis, University of Westminster, 2012. https://westminsterresearch.westminster.ac.uk/item/8z941/retrieval-induced-forgetting-in-depression-and-schizophrenia-role-of-mood-and-the-cholinergic-system.

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Retrieval-induced forgetting (RIF) is a robust phenomenon, which holds that recalling information from long-term memory can suppress the accessibility of related representations. Both inhibitory and interference processes have been identified as potential mechanisms that may underlie these automatic effects of retrieval. Depression and schizophrenia are known to be associated with inhibitory deficits and there is evidence demonstrating a reduced RIF among these disorders. Very few studies have however investigated RIF in these disorders and the mixed findings reported in the literature are inc

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Stensgaard, Pontus, Anders Alléus, and Jesper Palm. "Adaptive Mood Audio : Rethinking Audio for Games." Thesis, Blekinge Tekniska Högskola, Sektionen för planering och mediedesign, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-2869.

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The focus of this thesis is to study the way that adaptive audio can be used in digital games and how it can be used to portray different moods to the listener, how games can reflect different feelings and how quickly those feelings can change. Games audio environment is significant to be able to adapt to the ever changing narrative of the game. The purpose is to gain insight in how immersion in digital games can be improved with the use of adaptive audio to study if there’s an easy way to implement a system where audio can be mixed and adjusted in realtime to mirror the events in the game

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Kuteeva, Eugenia. "Brain galanin systems and their role in depression-like behaviour /." Stockholm, 2007. http://diss.kib.ki.se/2007/978-91-7357-135-7/.

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25

Alarjan, Sami. "Examining the relationship between post-stroke cognitive dysfunctions and mood disorders in hospitalised Saudi patients." Thesis, University of Nottingham, 2016. http://eprints.nottingham.ac.uk/32933/.

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Background: The Ministry of Health in Saudi Arabia estimates that there are at least 20,000 strokes per year across the country (126/100,000) and approximately half of those with stroke may develop cognitive dysfunction or mood disorders. However, a review of the literature revealed that research in the area of post-stroke cognitive dysfunction and mood disorders in the Kingdom of Saudi Arabia (KSA) is severely lacking. Accordingly, these studies aimed to bridge the knowledge gap with an emphasis on three central aspects. The first aim was to assess the prevalence of post-stroke cognitive dysf

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Barrows, Paul David. "The development and validation of mood scales suitable for use with stroke patients with aphasia." Thesis, University of Nottingham, 2016. http://eprints.nottingham.ac.uk/37568/.

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About a third of stroke survivors have some degree of depression. Depression has a significant impact on recovery after stroke, and identification is important so it can be treated. A common symptom of stroke is aphasia, where comprehension or expression of language is significantly impaired. Communication problems following stroke have been shown to be a major predictor of depression after stroke, yet these problems often make assessment of mood using conventional, language-based measures difficult or impossible. Though some non-verbal, self report mood measures exist, their utility is limite

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Keane, James Tuttle, and James Tuttle Keane. "Tidal-Rotational Dynamics of Solar System Worlds, From the Moon to Pluto." Diss., The University of Arizona, 2017. http://hdl.handle.net/10150/625474.

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The spins of planetary bodies are not stagnant; they evolve in response to both external and internal forces. One way a planet's spin can change is through true polar wander. True polar wander is the reorientation of a planetary body with respect to its angular momentum vector, and occurs when mass is redistributed within the body, changing its principal axes of inertia. True polar wander can literally reshape a world, and has important implications for a variety of processes—from the long-term stability of polar volatiles in the permanently shadowed regions of airless worlds like the Moon and

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28

ZAMBELLO, Erika. "Neuropeptide Y system in mood disorders: role of the different receptor subtypes." Doctoral thesis, Università degli Studi di Verona, 2008. http://hdl.handle.net/11562/337626.

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L’obiettivo principale di questa tesi di dottorato è rappresentato dalla ricerca di nuove evidenze in grado di supportare la conoscenza di un possibile coinvolgimento del Neuropeptide Y (NPY) e dei suoi principali recettori Y1, Y2 e Y5 nei meccanismi che regolano i disturbi dell’umore, quali depressione, ansia ed i disturbi legati all’esposizione allo stress. Questo studio, proposto dal dipartimento di Biologia del Centro Ricerche GlaxoSmithKline di Verona, è stato condotto nell’ambito di varie collaborazioni con centri universitari, quali il Karolinska Institutet di Stoccolma (Svezia),

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Matthews, Paul Richard Leonard. "Morphometric and molecular studies of schizophrenia and mood disorders." Thesis, University of Oxford, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.670182.

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Coughenour, Christopher Lynn Lacovara Kenneth J. "An analysis of cyclic tidal deposits : statistical time series properties, extraction of earth-moon parameters, and observed intertidal sedimentation /." Philadelphia, Pa. : Drexel University, 2009. http://hdl.handle.net/1860/3135.

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31

Sottilare, Robert. "Using Student Mood and Task Performance to Train Classifier Algorithms to Select Effective Coaching Strategies Within Intelligent Tutoring Systems (ITS)." Doctoral diss., University of Central Florida, 2009. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3981.

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The ultimate goal of this research was to improve student performance by adjusting an Intelligent Tutoring System's (ITS) coaching strategy based on the student's mood. As a step toward this goal, this study evaluated the relationships between each student's mood variables (pleasure, arousal, dominance and mood intensity), the coaching strategy selected by the ITS and the student's performance. Outcomes included methods to increase the perception of the intelligent tutor to allow it to adapt coaching strategies (methods of instruction) to the student's affective needs to mitigate barriers to p

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32

Bossu, Adeline. "Système d'action agile et dispositif interculturel numérique : le cas du MOOC Pas à Pas du projet ECO." Thesis, Bordeaux 3, 2020. http://www.theses.fr/2020BOR30027.

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Cette recherche propose d’étudier, avec une approche systémique, les dynamiques organisationnelles et relationnelles de collectifs étendus et médiés dans un dispositif numérique interculturel de formation à distance, le MOOC. Elle s’appuie sur un cas unique et inédit, le MOOC PàP à Pas, du projet européen ECO (24 partenaires hétérogènes entre Allemagne, Espagne, France, Italie, Pays-Bas, Portugal et Royaume-Uni) dont l’objectif est de produire des sMOOC (social MOOC) et de former à la création de ressources éducatives numériques. Dans une perspective interdisciplinaire, cette recherche-action

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Alessi, Elisa Maria. "The Role and Usage of Libration Point Orbits in the Earth - Moon System." Doctoral thesis, Universitat de Barcelona, 2010. http://hdl.handle.net/10803/2121.

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In this dissertation, we show the effectiveness of the exploitation of the Circular Restricted Three - Body Problem (CR3BP) in the Earth - Moon framework. We study the motion of a massless particle under the gravitational attraction of Earth and Moon, either to design missions in the new era of lunar exploration and simulate the behaviour of minor bodies that get close to the Earth.<br/><br/>A fundamental role is played by the five equilibrium, or libration, points that appear in the rotating reference system. We focus on two, L(1) and L(2), unstable collinear libration points, taking advantag

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Sutcliffe, Nadine C. "Strontium stable isotope behaviour accompanying melting and magmatism in the Earth-Moon system." Thesis, University of Oxford, 2013. http://ora.ox.ac.uk/objects/uuid:826ae843-3115-4a3e-975a-f6306f923d4e.

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This thesis concerns the application of a new technique for measuring the stable isotopes of Sr, specifically pertaining to mass dependent fractionation in high temperature processes on the Earth and Moon. Processes such as mantle melting and differentiation on Earth and the formation of the Lunar Magma Ocean are investigated by the application of a double-spike TIMS method to terrestrial and lunar material to obtain high-precision <sup>87</sup>Sr/<sup>86</sup>Sr, <sup>88</sup>Sr/<sup>86</sup>Sr and <sup>84</sup>Sr/<sup>86</sup>Sr data. Measurements of mantle-derived mafic material provide ins

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Couch, Yvonne H. "The effect of inflammation on the central 5-HT system in mood disorders." Thesis, University of Oxford, 2012. http://ora.ox.ac.uk/objects/uuid:84a7340d-bb48-4a10-9c32-4a15e42aafc3.

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Inflammation appears to play a major role in the pathogenesis of Major Depression, and understanding the relationship between the immune system and mood disorders is a growing area of research. Patients undergoing cytokine therapy frequently develop depressive-like signs which cease upon termination of treatment. In addition, depressed patients often present with high levels of circulating pro-inflammatory cytokines. There are also significant behavioural correlates between inflammation-associated sickness behaviours and Major Depression, suggesting there is a bidirectional relationship betwee

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Steeno, Gregory Sean. "Robust and Nonparametric Methods for Topology Error Identification and Voltage Calibration in Power Systems Engineering." Diss., Virginia Tech, 1999. http://hdl.handle.net/10919/39305.

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There is a growing interest in robust and nonparametric methods with engineering applications, due to the nature of the data. Here, we study two power systems engineering applications that employ or recommend robust and nonparametric methods; topology error identification and voltage calibration. Topology errors are a well-known, well-documented problem for utility companies. A topology error occurs when a line's status in a power network, whether active or deactive, is misclassified. This will lead to an incorrect Jacobian matrix used to estimate the unknown parameters of a network in a n

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Gittins, Rebecca. "The cytoarchitecture of the human anterior cingulate cortex and its involvement in mood disorder." Thesis, University of Oxford, 2003. http://ora.ox.ac.uk/objects/uuid:8ca079f0-6133-4f6d-a470-3a590789d8bb.

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The biological mechanisms proposed to underlie primary mood disorder do not usually include a neuropathological component. Over recent years, a significant imaging literature attests to structural abnormalities in various brain regions in mood disorder, and has encouraged neuropathological investigations. Although the neuropathological understanding of mood disorder is still rudimentary, structural correlates have begun to emerge. The studies described in this thesis investigate the neuropathology of the anterior cingulate cortex in mood disorder. The anterior cingulate cortex is extremely div

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Ormston, Jennifer. "Some aspects of Mohawk : the system of verbal inflectional categories." Thesis, McGill University, 1993. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=67490.

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Dans ce memoire, une analyse sur la relation entre certaines desinences verbales du Mohawk est proposee a l'interieur du cadre d'analyse pour les langues "polysynthetiques" developpe dans Baker (1993). Il est montre que la desinence aspectuelle "statique", qui affecte les formes d'accord, peut etre traitee comme un predicat contenant un quasi-argument. Cette caracteristique rend compte du changement d'accord sur le verbe principal lorsque le morpheme statique s'allie avec celui-ci pour former un predicat complexe et ce, conformement aux principes qui regissent l'accord dans la langue. Nous def

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Hillgren, Valerie Jane. "Partitioning behavior of moderately siderophile elements in Ni-rich systems: Implications for the earth and moon." Diss., The University of Arizona, 1993. http://hdl.handle.net/10150/186577.

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Several scenarios set forth to explain the siderophile element abundance patterns in the mantles of the Earth and the Moon involve the segregation of Ni-rich metal to the cores of those bodies under oxidizing conditions. To test these models, the partition coefficients of Ni, Co, Mo, W, P, and Ga between basaltic liquid, Ni-rich metal, and Ni-rich sulfide were experimentally determined under a wide range of oxygen fugacities. The partition coefficients are then used in mass balance calculations to test these scenarios involving oxidizing conditions during the formation of both the Earth's and

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Carter, Lynn M., Bruce A. Campbell, Catherine D. Neish, et al. "A Comparison of Radar Polarimetry Data of the Moon From the LRO Mini-RF Instrument and Earth-Based Systems." IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2017. http://hdl.handle.net/10150/623416.

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The Mini-RF radar, launched on the Lunar Reconnaissance Orbiter, imaged the lunar surface using hybrid-polarimetric, transmitting one circular polarization and receiving linear H and V polarizations. Earth-based radar operating at the same frequency has acquired data of the same terrains using circular-polarized transmit waves and sampling circular polarizations. For lunar targets where the viewing geometry is nearly the same, the polarimetry derived from Mini-RF and the earth-based data should be very similar. However, we have discovered that there is a considerable difference in circular pol

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Armytage, Rosalind M. G. "The silicon isotopic composition of inner Solar System materials." Thesis, University of Oxford, 2011. http://ora.ox.ac.uk/objects/uuid:9034aab2-aadd-4dcb-b3e3-64d4d7c2f029.

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This study uses high precision silicon isotopic measurements to understand events that occurred during the earliest stages of formation of the terrestrial planets. The isotopic compositions of diverse materials such as chondrites, lunar rocks and asteroidal basalts can shed light on the homogeneity of the solar nebula, metal-silicate differentiation on planetary bodies, and terrestrial moon formation. Limited variation in the Si isotopic composition of meteorites is evidence for a relatively homogeneous inner solar system with respect to silicon isotopes. The Si isotopic composition of bulk si

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Fagergren, Pernilla. "Cocaine effects on striatal dynorphin and CART neuropeptides : association to mood disorder /." Stockholm, 2003. http://diss.kib.ki.se/2003/91-7349-515-8.

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Herman, Jonathan F. C. "Improved Collocation Methods to Optimize Low-Thrust, Low-Energy Transfers in the Earth-Moon System." Thesis, University of Colorado at Boulder, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=3743638.

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<p> Modern and near-future Solar Electric Propulsion capabilities enable many new missions that were inconceivable using chemical propulsion systems. Many of these involve highly complex trajectories that are very challenging to design. New tools are needed that effectively utilize the rapidly growing parallel processing capabilities of modern computers. This research improves Gauss-Lobatto collocation methods, which are known to perform very well for low-thrust trajectory optimization, by formulating them as massively parallel processes. The parallelized elements of the problem formulation ex

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Daubar, Ingrid Justine. "New Dated Craters On Mars And The Moon: Studies Of The Freshest Craters In The Solar System." Diss., The University of Arizona, 2014. http://hdl.handle.net/10150/337303.

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New, dated impacts discovered on Mars and the Moon provide direct observations of modern bombardment in the inner Solar System and the freshest available examples of recent craters. Their population, morphology, formation and modification processes relate to issues with secondaries and help calibrate cratering chronology models. I use a subset of the new impacts to measure the current production function at Mars. The resulting production function is a factor of approximately four lower than widely-used models, and the size frequency distribution has a shallower slope. This discrepancy between

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Rieger, Dorothee. "Swahili as a tense prominent language: proposal for a systematic grammar of tense, aspect and mood in Swahili." Swahili Forum 18 (2011), S. 114-134, 2011. https://ul.qucosa.de/id/qucosa%3A11469.

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Swahili ist keineswegs eine besonders „exotische“ Sprache, aber dennoch fällt es schwer, eine gu-te moderne Grammatik des Standard-Swahili (Kiswahili sanifu) zu finden. Insbesondere die Inter-pretation der vorkommenden Tempora, Aspekte oder Modi des Verbs sind in den erhältlichen Grammatiken diskrepant bis widersprüchlich. Der Artikel versucht, einen systematischen Ansatz für eine strukturelle Matrix des TAM-Systems im Swahili herauszuarbeiten. Dabei beziehe ich mich auf die von Shankara Bhat in The Prominence of Tense, Aspect and Mood (1999) vorge-schlagene typologische Methode. Bhat legt dar

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Wittmann, Thomas [Verfasser], and Thomas [Akademischer Betreuer] Moor. "Zur Methodik und Anwendung fehlerverdeckender Steuerungsrekonfiguration für eine Klasse ereignisdiskreter Systeme / Thomas Wittmann. Gutachter: Thomas Moor." Erlangen : Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 2014. http://d-nb.info/1064996655/34.

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Andersson, Gustav, and Emil Ericsson. "Dark Ages Interferometer (DALI) Deployment Rover: Energy System." Thesis, Högskolan i Halmstad, Energiteknik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-25631.

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The cosmic “Dark Ages” is the cosmic era between the epochs of recombination of cosmic microwave background and the formation of the first stars. The only signal from this epoch is from neutral hydrogen, which could represent one of the richest data sets in cosmology. In order to extract this data, NASA/JPL has proposed a rover mission to the farside of the moon to deploy several radio arrays. Here the arrays would gather data undisturbed by human interference. This thesis examines the possibility of using photovoltaic and electric batteries as an energy solution for a rover on the moon. The r

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Cohen, James. "Student Ideas about the Moon and its Phases and the Impact of a Real 3D Model of the Sun/Earth/Moon System in an Introductory Astronomy Laboratory Course." Fogler Library, University of Maine, 2005. http://www.library.umaine.edu/theses/pdf/CohenJ2005.pdf.

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Lotti, Alessandro. "Robotic exploration of lunar caves: concept analysis of the communication system for an ESA Moon mission." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.

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In 2009 a large hole was discovered at Marius Hills, a set of volcanic domes in Oceanus Procellarum, a wide mare at the western edge of the Moon nearside. The hole is believed to be the skylight to an intact lava tube. Recent studies demonstrated that such caverns could be ideal locations for hosting future human bases. The European Space Agency opened a campaign in 2019 through its Open Space Innovation Platform seeking innovative ideas for exploring lunar caves. The thesis work has been developed in collaboration with the small satellites company Alén Space S.L. that formed a consortium wit

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Abdurrazak, Gokce Yukselen. "The tense, aspect, mood-modality system of the Turkish spoken in Cyprus : a socio-linguistic perspective." Thesis, SOAS, University of London, 2012. http://eprints.soas.ac.uk/14564/.

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This study discusses the tense, aspect and mood-modality system of the Turkish spoken in Cyprus. Initially a theoretical outline of the concepts of tense, aspect and mood-modality in general and that of the Turkic finite system is given followed by that of the historical development of Turkish grammar-writing tradition. Modern Standard Turkish (MST), being the standard form used by the speakers of Turkish in Cyprus, has always been the dominant variety in formal environments and therefore the donor variety in inter-varietical contacts especially since 1974. Accordingly MST has contributed to d

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