Law regulates the sexual citizen in myriad ways, from overt sexual behaviour, to conjugal and familial formation and dissolution, to issues which engage questions of sex and societal behaviour. This work uses Queer Theory, Legal Feminism, and Legal Historicism to explore the law regulating “private sexual ordering” through an analysis of three subject areas: polygamy, prostitution/sex work, and law’s regulation of female sexuality. The analysis is undertaken of both national and international legal regimes. The author’s informational methodology consists of textual analysis, comparative law, and investigating historical and social science literature which bears on, and is applied to, a legal analysis. The philosophical, religious, and moral motives of laws regulating sexual and sexualized behaviour are analyzed, as is the restriction of forms of private sexual ordering on dissenting minorities, some of whom invoke freedom of religion and conscience to justify their choices. The work concludes that contemporary law restricting forms of private sexual ordering is imbued with religio-moral content which inhibits law applying principles of human autonomy and freedom of choice. The work thus recommends reform of the laws prohibiting or restricting private sexual ordering in the areas of polygamy and prostitution, while remaining optimistic that both national and international law can be used to safeguard the agentic and physical integrity of women faced with restrictions on their private sexual ordering and reproductive behaviours.

Humans are born with innate abilities that vary across individuals. Those innate abilities are at their origin unaffected by their name. Yet, as a child grows up it can be put in different situations based solely on name it holds. Those situations alter individuals' behavior in allocation of scarce resources (Carlson and Conrad, 2008) and consequently its earnings (Jurajda and Munich, 2007). At origin of these empirically observed differences might be use of alphabetical ordered lists at elementary and lower secondary schools. The empirical test I conducted fails to reject the null hypothesis that there is relation between surname initials and student achievement. Those at the bottom of alphabetical ordered list of students tend to do better than the rest of the class. Possible explanation might be use of alphabetical sorting during examinations, which creates uneven incentives among students. To support this explanation a model of student's decision under risk is presented and discussed.

Multilayer structures of AlxIn1-xAsySb1-y/GaSb (0.37 £ x £ 0.43, 0.50 £ y £ 0.52), grown by molecular beam epitaxy on GaSb (100) substrates were characterized using variable temperature Hall and Shubnikov-de Haas techniques. For nominally undoped structures both p and n-type conductivity was observed. The mobilities obtained were lower than those predicted by an interpolation method using the binary alloys; therefore, a detailed analysis of mobility versus temperature data was performed to extract the appropriate scattering mechanisms. For p-type samples, the dominant mechanism was ionized impurity scattering at low temperatures and polar optical phonon scattering at higher temperatures. For n-type samples, ionized impurity scattering was predominant at low temperatures, and electron-hole scattering dominated for both the intermediate and high temperature range. Analyses of the Shubnikov-de Haas data indicate the presence of 2-D carrier confinement consistent with energy subbands in GaAszSb1-z potential wells. Epilayers of GaAs1-xSbx (0.19<x<0.71), grown by MBE on semi-insulating GaAs with various substrate orientations, were studied by absorption measurements over the temperature range of 4-300 K. The various substrate orientations were chosen to induce different degrees of spontaneous atomic ordering. The temperature dependence of the energy gap (Eg) for each of these samples was modeled using three semi-empirical relationships. The resulting coefficients for each model describe not only the temperature dependence of Eg for each of the alloy compositions investigated, but also for all published results for this alloy system. The effect of ordering in these samples was manifested by a deviation of the value of Eg from the value of the random alloy. The presence of CuPt-B type atomic ordering was verified by transmission electron diffraction measurements, and the order parameter was estimated for all the samples investigated and found to be larger for the samples grown on the (111) A offcut orientations. This result strongly suggests that it is the A steps that contribute to the formation of the CuPt-B type ordering in the GaAs1-xSbx alloy system.

Neste trabalho estudamos o problema relacionado à construção de uma teoria quântica para uma partícula, se movendo não relativisticamente num espaço curvo, tratado como uma subvariedade de outro Euclideano, talvez dando maior ênfase ao aspecto geométrico envolvido nesta abordagem, uma vez que os demais trabalhos relacionados ao mesmo tema não o fazem. Além de mostrarmos que o consequente uso de uma teoria de sistemas vinculados não contribui para remover as ambiguidades da formulação quântica, relacionados diretamente ao ordenamento de operadores, também apresentamos, através de uma quantização específica feita sob a prescrição de Dirac, elementos que permitem não apenas construir um formalismo quântico covariante, mas também liberto de qualquer correção quântica. Em adição, fazemos alguns comentários gerais no que se refere às outras abordagens clássicas possíveis para o mesmo problema, intentando construir teorias quânticas associadas ao sistema sob consideração. / In this work we study the problem related to the construction of a quantum theory for a particle, moving non-relativistically in a curved space, treated as submanifold of the other Euclidean, maybe putting more emphasis on the geometric aspect envolved in this approach, since the rest of the works related to the subject do not. Besides showing that the consequent use of a theory of constrained systems not contributes for remove the ambiguities in the quantum formulation, related directly to the ordering of operators, we also showing, through a specific quantization made in the prescription of Dirac, elements that offers resources not only to construct a covariant quantum formalism, but also free from any quantum correction. In addition, we make some general comments in relation to other classical approaches possible for the same problem, attempting to build quantum theories associated with the system under consideration.

The diploma thesis is focused on the improvement of goods ordering process through the wholesale system in a small company dealing with import of household products and gift items from Asian countries. Diploma thesis is divided into three parts. The theoretical part serves as an introduction to business processes, information systems and change management. The second part consists of an analysis of the internal environment of the company, a B2B ordering process analysis and a research on requirements for an improved version of the wholesale system. The third part is devoted to a proposal of the ordering process improvement and suggestion of a new version of the wholesale system based on the identified requirements of the process and stakeholders.

Amoss is an equation-orientated stochastic simulation platform, developed on open-source software. It is designed to facilitate the development and simulation of Sasol value chain models using the Moss methodology. The main difficulties with the original Moss methodology was that plant recycles were difficult to incorporate and that plant or model changes meant rebuilding the entire Moss model. The first version of automatic-Moss was developed by Edgar Whyte in an effort to address these problems. It was successful as a proof of concept, but generated simulations were numerically unstable and very slow. A second version of the tool was to be developed to address numerical stability and simulation speed. The stochastic simulations stemming from Amoss models are large-scale and contain mixed continuous/conditional algebraic equation sets, with first order stochastic differential equations. Additionally, optimal flow allocation as a disjunctive optimisation is often encountered. The complexity of these factors makes finite difference approximation the main solution. The equation ordering, simulation approach and code generation features of the Amoss tool were investigated and re-implemented. A custom equation ordering method, which uses interval arithmetic and weighted maximal matching for numerically stable matching, followed by Dulmage-Mendelsohn decomposition and Cellier’s tearing, was implemented. For implicitly ordered systems, a fixed-point iterative Newton method, where conditional variables are separated from continuous variables for solving stability, was implemented. The optimal allocation problem with heuristic allocation was generalised to plants with recycles. Fast simulation code utilising parallel processing, efficient solving and function evaluation, efficient intermediate data storage and fast file writing, was implemented. Amoss simulations are now substantially faster than the industry equivalent and can reliably model Moss methodology problems. / Dissertation (MEng (Control Engineering))--University of Pretoria, 2021. / Sasol / Chemical Engineering / MEng (Control Engineering) / Unrestricted

The subjekt of the diploma thesis „The Study of Purchasing with the linkage to Production Processes“ is to analyze actual situation of the purchasing logistics processes with the linkage to effective suplier-concumer relationships. In the theoretical part there will be an introduction of our chosen company Robe show lighting s.r.o. and its business focus. We will explain general principles and methods of purchasing logistics. The practical part contains an analysis of actual situation of logistics processes of the company, such as ordering, purchasing, stock management, transportation and storage. Based on this analysis we will suggest several improvements to achieve uninterrupted production process with optimum costs.

The diploma thesis is focused on the study of pressure-induced changes in a behavior of RECo2-type compounds. HoCo2 and its substitution of Si instead of Co in Ho(Co1-xSix)2, x = 0,025 were chosen as a representative compounds from this family of materials. Measurements of electric resistivity, heat capacity, magnetization and AC magnetic susceptibility under ambient pressure showed presence of three magnetic transitions for both samples: the change of the easy magnetization direction at TR ~ 16 K, the Curie temperature TC ~ 80 K and the flipping of magnetization of Co magnetic moments into the parallel direction with Ho magnetic moments at Tf ~ 125 K for HoCo2. Under hydrostatic pressures up to 3 GPa, the TR shifts to higher temperatures whereas TC and Tf, both decrease. This probably occurs due to the weakening of the Co magnetism and the strength of exchange interaction between Ho-Co sublattices. The experiment of muon spin rotation demonstrates a pressure influence to the decay of Co magnetic clusters, which occurs at lower temperatures with increasing pressure. It is evident that the hydrostatic pressure directly influences the exchange interaction between Co-Co.

This work contains a study of CeRuSn, which undergoes two structural transitions at 290 K and 256 K both connected with large temperature hysteresis. During the transitions the lattice shrinks along the c axis. At low temperatures the compound orders antiferromagnetically below 2.8(1) K. A strong magnetocrystalline anisotropy is caused by very shortened Ce-Ru separations pointing approximately along the c axis. Due to a strong hybridization, two thirds of Cerium atoms are in a non integer valence state. For the first time synthesized single-crystals of YbPt2Si2 a Yb2Pt3Si5 show no magnetic ordering. A maximum, which is visible in the temperature dependences of magnetic susceptibility originate in thermal population of the magnetic Yb3+ state. Powered by TCPDF (www.tcpdf.org)

Magnetic properties of RCo2 compounds have been studied since the sec- ond half of the last century. However, there was recently observed new mag- netic state, so-called parimagnetism. The aim of this thesis was to find the real behavior of TmCo2, which exhibits many discrepancies in the published results, by means of preparation of high-quality single-crystals, its characteri- zation around the ordering temperature and to study parimagnetic behavior. Obtained results showed differences between the samples, which should be caused by the instability of Co and Tm magnetism. It might be the reason of discrepancies in the literature. The results however show the same struc- ture of measured curves with two present phase transition. We suggest two possible interpretations: a) magnetic reorientation of Tm magnetic moments below the ordering temperature of the Tm sub-lattice or b) consequent or- dering of the rare-earth sub-lattice followed by ordering of the Co sub-lattice at lower temperature, which seems to be more realistic. We observed pari- magnetic anomalies at 38 K, 80 K, 168 K only in the case of single-crystals containing small amount of impurity phase, which probably affects the for- mation of magnetic clusters. 1