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This work presents a measurement model designed for multiple observers (space-based and/or ground-based) for cislunar orbit determination and estimation for space domain awareness (SDA). The measurement model is able to rely solely on angles-only measurements by defining the line between the observer and the target object as the intersection of two non-parallel planes. There are two primary applications for the measurement model related to cislunar SDA: (1) It provides a new initial orbit determination (IOD) technique that does not require any knowledge of the dynamical environment, and (2) It is adopted into a sequential estimation scheme to provide continuous orbit tracking. The present measurement model is studied and demonstrated for both Earth orbits and cislunar space applications. While the goal is to operate in cislunar space, evaluating the measurement model in Earth orbits allows for the comparison against established IOD and estimation methods, resulting in a more rigorous analysis of the performance. Within this work, several different aspects of the present measurement model are studied, both analytically and computationally, to understand their effect on the orbit determination and estimation problems. By methodically varying the location of the observers, relative to the target, it is shown that the error produced by the IOD solution to the measurement behaves in a predictable manner. The IOD solution model can then be compared against similar IOD methods for Earth orbit. For orbit estimation, the measurement model is used in a modified extended Kalman filter that incorporates Analytic Continuation, allowing it to propagate the perturbed orbit dynamics to increase estimation accuracy. The measurement model is then incorporated in both an extended Kalman filter and unscented Kalman filter, comparing the resulting accuracy and computational time as the measurement frequency and nonlinearity of the dynamics are varied. For cislunar space, the measurement model is used to perform IOD and tracking of objects in orbits with relevance to future space missions. Finally, the present measurement model is shown to be capable of fusing other measurement methods from heterogeneous sensors to perform accurate orbit estimation. Overall, it is shown that the measurement model produces highly accurate results for IOD and orbit estimation. The results of the IOD solution have the same level of accuracy as other Earth orbit IOD methods and is shown to be able to easily translate to cislunar orbits without any modification, while maintaining that accuracy. For orbit estimation, the measurement model is shown to converge to an accurate estimate quickly and maintain that level of accuracy even in the absence of measurements, which is to be expected due to the vastness of cislunar space. The present approach will have future applications in space-based space surveillance networks for on-orbit cislunar SDA operations.

Thesis (M.A.)--Boston University / PLEASE NOTE: Boston University Libraries did not receive an Authorization To Manage form for this thesis or dissertation. It is therefore not openly accessible, though it may be available by request. If you are the author or principal advisor of this work and would like to request open access for it, please contact us at open-help@bu.edu. Thank you. / The purpose of this thesis is to present Ernst Cassirer's philosophy of science and to show its relation to Kantian philosophy. In the first chapter, the basic theme of transcendental philosophy, the concept of unity, is developed. Then, finally, the se of "transcendental" and "empirical" is explained with respect to Kant's theory of experience. Here it is pointed out that the experience is an immanent mixture of transcendental and empirical elements. Experience and self-consciousness are systematically interconnected. The transcendental concepts serving as the ground of empirical determination merely represent the inherent unity of consciousness [TRUNCATED] / 2999-01-01

No / A sensitive and rapid oil-in-water (O/W) microemulsion high performance liquid chromatography (MELC) method has been developed. The water-in-oil (w/o) microemulsion was used as a mobile phase in the determination of salbutamol in aqueous solutions. In addition, the influence of operating parameters on the separation performance was examined. The samples were injected into C18, (250mmx4.6mm) analytical columns maintained at 25(o)C with a flow rate 1 ml/min. The mobile phase was 95.5% v/v aqueous orthophosphate buffer 20 mM (adjusted to pH 3 with orthophosphoric acid), 0.5% ethyl acetate, 1.5% Brij35, and 2.5% 1-butanol, all w/w. The salbutamol and internal standard peaks were detected by fluorescence detection at the excitation and emission wavelengths of 267 and 313 nm respectively. The method had an accuracy of > 97.78% and the calibration curve was linear (r2 = 0.99) over salbutamol concentrations ranging from 25 to 500 ng/mL. The intra-day and inter-day precisions (CV %) were <1.6 and <1.8, respectively. The limit of detection (LOD) and limit of quantitation (LOQ) were 9.61ng/ml and 29.13ng/ml, respectively. The method reported is simple, precise and accurate, and has the capacity to be used for determination of salbutamol in the pharmaceutical preparation.

Political scientists concentrate on the concept of political activity as social cooperation motivated to meet two goals: biological survival and accumulation of extrinsic rewards such as power, wealth, or territory. Self-determination research in the field of human motivation reveals a different motivator in the form of innate psychological needs. This literature review and theoretical analysis offers an alternative cause for political activity in light of recent empirical work completed by psychologists in the study of Self-Determination Theory. The findings suggest that humans act politically to secure satisfaction of their psychological needs of autonomy, relatedness, and competence. / Master of Arts

Students' self-determination (SD) can positively influence their ability to make choices in planning for their future. The current study is a preliminary validity study on the most recent 21-item version of Shogren and Wehmeyer's Self-Determination Inventory: Student Report (SDI-SR). The SDI-SR was administered to 316 students (ages 13-22) and results were examined with exploratory factor analysis (EFA) and confirmatory factor analysis (CFA). Results of the EFA on a 7-factor solution (TLI = 0.97; RMSEA = 0.04; SRMR = 0.02) aligned with the theoretical basis for the SDI:SR as well as results for the 7-factor CFA using simulated data (TLI = 0.913; RMSEA = 0.047; SRMR = 0.072 and CFI = 0.931); however, the CFA 7-factor solution results on the present study data were slightly lower than what is considered acceptable model fit (TLI = 0.883; RMSEA = 0.04; RMSR = 0.047). These results combined suggest that theory-based 7-factor solution does capture seven latent constructs in this data. A CFA was also conducted with a 5-factor structure based on factor loading from an EFA using the present research data resulting in a better model fit (TLI = 0.912; RMSEA = .075; SRMR = 0.046; and CFI = 0.940) as well as a CFA run with the simulated data resulting in an even better fit (TLI = 0.952; RMSEA = 0.040; SRMR = 0.064; and CFI = 0.967) than the 7-factor solutions. It appears the current study results aligned with five of the latent factors of SD.

Syftet med denna studie är att undersöka vilka effekter möteskulturen i traditionell projektmiljö har på motivation hos mötesdeltagarna. Möteskultur i traditionella projekt kan vara ostrukturerad eftersom det är upp till varje enskild projektledare att sätta upp riktlinjer för hur möten ska genomföras. Den empiriska undersökningen i form av kvalitativa intervjuer utfördes på Totalförsvarets forskningsinstitut, FOI, och deltagarnas upplevda motivation analyserades utifrån Self Determination Theory. Intervjuresultat visade på en demotiverande upplevelse i flera situationer, både kring möteskulturen och i hur mötesinnehållet hanteras. Författarna fann att motivationen påverkades av agenda och syftet med mötet, närvaro, mötestider, mötesformen samt feedback. Resultatet visade att den undersökta möteskulturen var ostrukturerad vilket ledde till en uppkomst av en submöteskultur med fler mindre informella möten som i sin tur leder till en upplevelse av att arbetsflödet bryts och de intervjuade kände sig mer stressade och mindre produktiva. Eftersom agil projektledningsmetodik brukar framhållas motiverande ur flera aspekter för författarna en diskussion om hur införandet av agila möten kan vara främjande för motivationen i traditionella projektmiljöer. / The purpose of this study was to examine the effects the meeting culture in traditional projects has on the participants’ motivation. The meeting culture in traditional projects can differ in effectiveness since it is dependant on the project manager to arrange, hold and follow up the meeting. The empiric study was conducted in the form of qualitative interviews at the Swedish Defence Research Agency, FOI, and the motivation experienced by participants' was analysed by Self Determination Theory. The results from the interviews showed a demotivating experience in several situations, both regarding the meeting culture and how the meeting content was handled. The authors found that the motivation was affected by the agenda and purpose of the meeting, the attendence, time and form of the meeting and feedback. The results revealed that the examined meeting culture was unstructured which led to an emerging sub-meeting culture of an increasing number of smaller informal meetings. This in turn led to an experience of the work flow being disturbed and the interviewees feeling more stressed and less productive. Since agile project methodology is often regarded as motivating from several aspects, the authors conducted a discussion on how the implementation of agile meetings can be conducive to motivation in traditional project environments.

The thesis deals with parentage determination. At present, this issue is becoming more and more topical due to current diversion from traditional values, the traditional model of family in particular. The thesis concerns not only with the determination of paternity, but also with maternity determination, which is mentioned with regard to assisted reproduction and surrogacy. Emphasis is placed on both, current legislation and the new Civil Code coming into effect on 1 January 2014. The thesis is divided into eight chapters. The introduction discusses possible views on the concept of parenthood. Furthermore, it introduces the issue of parentage determination, especially in connection with the increasing number of children born outside marriage. The following chapter is devoted to legislative regulation of parentage determination itself. Firstly, it elaborates the history of such regulations with focus on Roman law and the Austrian Civil Code. Subsequently, it describes the current legislation and briefly comments on the new Civil Code, which is further discussed in the corresponding chapters. The third chapter examines the determination of maternity. Included are the issues of assisted reproduction and surrogacy, as well as anonymous and concealed births, which have become an important topic rather recently....

Research conducted in this thesis revolves around the issue of state sovereignty. More precisely, this thesis aims at examining the foreign policy of the United States of America and its impact on sovereignty of Georgia and Serbia. Different attitude towards the recognition of unilateral declarations of independence of South Ossetia and Kosovo, breakaway regions of Georgia and Serbia, by the US officials represents the starting point of this study. Following state-centric approach this thesis presents an assessment of bilateral relations between the USA and case study countries Georgia and Serbia. The purpose of this study is to enable better understanding of different approaches by the US officials towards the issue of respecting state sovereignty.

The dissertation studies the relationship between Québécois and Indigenous peoples with regards to two different approaches to self-determination. It offers a critique of sovereignty-based self-determination in the form of the nation-state – a hegemonic model throughout the world and within Québécois political imagination – by shining light on the co-constitutive relationship between vulnerability and sovereignty, tracing the origins of their conceptual association in the work of Hobbes. The dissertation argues that, comparatively, by asserting the priority of relationality over individuality, the work of Marcel Mauss contributes to a relational theory of self-determination. By positing togetherness, relationality, reciprocity, and difference as forming the most basic reality of politics, Maussian gifting offers new perspectives on the question of vulnerability in the context of intercultural relations. Finally, through a study of the ethos of Indigenous treaty philosophy, the dissertation argues for re-envisioning Québécois self-determination through the role of treaty partner and honouring the gift of hospitality contained in the early treaties and alliances of peace and friendship with Indigenous peoples. / Graduate / 2020-04-18