- About
-
The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
Search results
Showing 21 to 27 of 27 (0.077 seconds)| 21 |
HABITAT CHARACTERIZATION AND INVENTORY OF COLLINSONIA VERTICILLATA IN SHAWNEE STATE FOREST AND STATE PARK, SCIOTO COUNTY, OHIOGray, Jennifer L. 05 September 2006 (has links)
No description available.
|
| 22 |
Floral symmetry genes elucidate the development and evolution of oil-bee pollinated flowers of Malpighiaceae and KrameriaceaeKhojayori, Farahnoz N 01 January 2018 (has links)
Specialization on insect and animal pollinators is thought to be the driving force for the evolution of floral traits. Specifically in the New World (NW), the oil-bee pollination syndrome has led to the convergence of floral characters in two distantly related families of core eudicots, Malpighiaceae and Krameriaceae. Both families display a flag-like structure that establishes a zygomorphic flower and floral oil rewards in epithelial elaiophores. These traits work concomitantly to attract and reward female oil-bees that help fertilize these flowers and in return receive oils. The underlying genetics of floral zygomorphy were studied in several clades of core eudicots, which implicated CYCLOIDEA2-(CYC2-)like genes of the TCP gene family to play a role in the establishment and maintenance of this trait. In Malpighiaceae, previous work demonstrated that two CYC2-like genes, CYC2A and CYC2B, are expressed during development correlated with establishing zygomorphy in flowers of NW Malpighiaceae. In this thesis work, I investigated the underlying developmental and genetic basis for the establishment of non-homologous and yet functionally similar traits in the oil-bee pollinated flowers of Malpighiaceae and Krameriaceae. In Chapter 1, I investigated the modification of a conserved CYC2 genetic program in the Old World (OW) acridocarpoids of Malpighiaceae following a major biogeographic disjunction. And in Chapter 2, I studied the floral ontogeny and genetic basis of floral zygomorphy development in Krameria lanceolata Torrey of Krameriaceae. This thesis work sheds light on the significance of the interdisciplinary study of floral symmetry evolution through comparative pollination ecology, development, and genetics.
|
| 23 |
Kvantová teorie mezinárodních vztahů: Modelování strategické interakce pomocí kvantové teorie prevděpodobnosti / Quantum Theory of International Relations: Modeling Strategic Interaction with Quantum Probability TheoryTesař, Jakub January 2018 (has links)
Recent results from cognitive psychology suggest that human behavior can be, in some situations, better described by laws known from physical quantum theory. This work responds to this development and seeks to answer the question of how quantum models of cognition and decision-making can contribute to our understanding of the social world. We introduce the approaches to the application of quantum theory in social sciences - quantum consciousness, quantum reasoning and quantum metaphor and further develop the second, in the context of strategic interaction in game theory. We show that the quantum model corresponds to both the psychological intuition and many empirically known anomalies such as the order effect, disjunction effect, or context effect. In this work, we derive a specific model of strategic interaction between two players, and we test it in the experimental Prisoner's Dilemma game. The model is based on the rational choice theory, which is nevertheless re-defined when it is shown how the strategic choice is changed if the quantum probability (C*-algebra) is used as the underlying theory instead of classical probability (σ-algebra). The results obtained support the quantum model and showed a different representation of the game among various groups of players. The quantum model of...
|
| 24 |
The Measure Of MeaningPollon, Simon Carl January 2007 (has links)
There exists a broad inclination among those who theorize about mental representation to assume that the meanings of linguistic units, like words, are going to be identical to, and work exactly like, mental representations, such as concepts. This has the effect of many theorists applying facts that seem to have been discovered about the meanings of linguistic units to mental representations. This is especially so for causal theories of content, which will be the primary exemplars here. It is the contention of this essay that this approach is mistaken. The influence of thinking about language and mental representation in this way has resulted in the adoption of certain positions by a broad swathe of theorists to the effect that the content of a concept is identical to the property in the world that the concept represents, and that because of this a concept only applies to an object in the world or it does not. The consequences of such commitments are what appear to be insoluble problems that arise when trying to account for, or explain, misrepresentation in cognitive systems. This essay presents the position that in order to actually account for misrepresentation, conceptual content must be understood as being very much like measurements, in that the application of a content to an object in the world is akin to measuring said object, and that conceptual content ought be understood as being graded in the same way that measurements are. On this view, then, concepts are the kinds of things that can be applied more, or less, accurately to particular objects in the world, and so are not identical to whatever it is that they represent.
|
| 25 |
The Measure Of MeaningPollon, Simon Carl January 2007 (has links)
There exists a broad inclination among those who theorize about mental representation to assume that the meanings of linguistic units, like words, are going to be identical to, and work exactly like, mental representations, such as concepts. This has the effect of many theorists applying facts that seem to have been discovered about the meanings of linguistic units to mental representations. This is especially so for causal theories of content, which will be the primary exemplars here. It is the contention of this essay that this approach is mistaken. The influence of thinking about language and mental representation in this way has resulted in the adoption of certain positions by a broad swathe of theorists to the effect that the content of a concept is identical to the property in the world that the concept represents, and that because of this a concept only applies to an object in the world or it does not. The consequences of such commitments are what appear to be insoluble problems that arise when trying to account for, or explain, misrepresentation in cognitive systems. This essay presents the position that in order to actually account for misrepresentation, conceptual content must be understood as being very much like measurements, in that the application of a content to an object in the world is akin to measuring said object, and that conceptual content ought be understood as being graded in the same way that measurements are. On this view, then, concepts are the kinds of things that can be applied more, or less, accurately to particular objects in the world, and so are not identical to whatever it is that they represent.
|
| 26 |
Generació additiva de funcions d'agregació conjuntives i disjuntives discretesMonreal Garcies, Jaume 14 September 2012 (has links)
En aquest treball es defineix el concepte de generador additiu de t–normes i de t–conormes discretes. S’hi estableixen resultats generals sobre la generació additiva de disjuncions i les caracteritzacions dels generadors de les t–conormes bàsiques. Es planteja un algorisme per a decidir quan una disjunció és additivament generable, basat en l’algorisme Gamma de la teoria de convexitat. S’estudia la relació que hi ha entre la generació additiva amb la suma ordinal i amb l’anidament. S’introdueixen els conceptes de generador concau i generador convex. S’estudia la generació additiva de les disjuncions i les t–conormes suaus i bivalents sobre L*. S’insisteix amb l’aplicabilitat de la generació additiva quan es tracta de manejar la condició de T–transitivitat per a relacions d’indistingibilitat discretes. Finalment, s’estudia la relació que hi ha entre la generació additiva d’una t–conorma S i les propietats de l’S–implicació corresponent. Amb motiu de les propietats d’ordre i modus ponens generalitzat, es defineixen els generadors mixtos
|
| 27 |
Grave rites and grave rights: anthropological study of the removal of farm graves in northern peri-urban JohannesburgHill, Cherry Ann 02 1900 (has links)
Text in English / In a diachronic and multi-sited study that extended from 2004 through
2012/2013 I deconstructed the sociocultural dynamics of relocating farm graves
from the farm Zevenfontein in northern peri-urban Johannesburg. The graves at
the focus of the study were some seventy-six graves removed from a northern
portion of the farm in 2004 for a huge development project that commenced
construction in 2010, and other graves removed in the 1980s from portions of
the farm developed for residential estates in the 1990s.
The study explored the people who dwelt on the farm and created the
graveyards, the religious processes entailed in relocating the mortal remains of
ancestors, the mortuary processes of exhuming and reburying ancestors, the
disputations between and negotiating processes of landowners and grave
owners, and the demands and demonstrations by farm workers and dwellers
seeking redress for past human and cultural rights infringements.
Although the topic of farm graves is well-referenced in land claims and sense of
place discourses and is not in itself a new topic, this study provides original and
in-depth information and insight on the broader picture of ancestral graves and
their relocation, including the structuring of a community and its leaders and
followers, it suggests answers to the question as to whether ancestral
graves/graveyards can successfully and functionally be relocated. Not only are
religious aspects examined in the study, but also the sociopolitical and economic
dimensions of relocating graves are fully scrutinised in the context of farm
workers and dwellers’ political awareness of and astuteness to the social and
economic potential of farm graves and their relocation. / Anthropology and Archaeology / M.A. (Anthropology)
|
Page generated in 0.0821 seconds