Global ETD Search

161	Crisis, endeudamiento y desposesión en el mundo rural catalán de finales del siglo XIX Garcia, Ricard, 1968- 16 April 2009 (has links) Esta tesis doctoral examina las repercusiones de la llamada "Gran Depresión" de finales del siglo XIX sobre la sociedad rural catalana a partir del análisis del que puede ser visto como uno de los síntomas más característicos de cualquier crisis agraria: la pérdida de derechos de propiedad sobre la tierra o sobre otros inmuebles de carácter rural como consecuencia de reclamaciones de deudas, promovidas por particulares o por el Estado, que culminaron en subasta pública.El trabajo ha sido dividido en dos secciones. En la primera se analiza la desposesión causada por procedimientos ejecutivos impulsados por la Administración de Hacienda por impuestos impagados. En la segunda se ha estudiado la actividad judicial que concluyó en subasta pública de bienes inmuebles, y se han mostrado sus relaciones con la situación agraria, especialmente en los sectores del trigo y de la vid. / This Doctoral Thesis examines the repercussions of the Great Depression of end of the 19th century on the Catalan rural society from the analysis of the one that can be seen as one of the most characteristic symptoms of any agrarian crisis: the loss of property rights on the land or on other real estate of rural nature as a consequence of claims of debts carried out by individuals or by the State that culminated in public auctions.The work has been divided in two sections. In the first, the dispossession because of administrative executive procedures by unpaid taxes that took place in Catalonia in this period is analysed. In the second, we have studied the judicial activity that finished in public auction of real estate goods and we tried to relate it to the agrarian situation, especially in the wheat and the wine sectors. Dispossession of real state goods Embargos de immuebles Embargament d'immobles Financial debt Endeutament fiscal Endeudamiento fiscal Mortgage credit Crèdit hipotecari Crédito hipotecario Catalan rural society Món rural català Mundo rural catalán Rural credit Crèdit rural Crédito rural Agrarian crisis Crisi agrària Crisis agraria Subasta pública Public auctions 332 9
162	Innovative masonry shell construction in India's evolving building crafts : a case for tile vaulting Jalia, Aftab January 2017 (has links) This thesis uses the lens of building technology to examine cultural exchange and its relationship to the building crafts. By focusing on masonry vaulting in India, my research brings together two worlds – one that shines light on the variety of innovative masonry shell construction techniques that exist in the county and another that seeks to evaluate the scope of tile vaulting, an over 600-year old Mediterranean building technique, within India’s evolving building crafts culture. This thesis is organized in three parts: PART ONE Tile Vaulting and Relevance Today \| A Brief History of Masonry Shells in India Part one introduces tile vaulting’s unique principles compared to other vaulting traditions while contextualizing its relevance to present day India. A survey of varied masonry vaulting techniques and modules, endemic and imported, practiced across India is presented against the backdrop of what is a predominantly reinforced concrete-based construction industry. PART TWO Modules, Methods and Motivations The second part of this research comprises case studies that include some of India’s most iconic buildings such as the Villa Sarabhai by Le Corbusier, the National Institute of Design by Gautam Sarabhai and Sangath by B.V. Doshi, each of which employed innovative construction techniques for its vaults. The production and use of the enigmatic ceramic fuses in India is examined for the first time alongside their indigenous cousins: burnt clay tubes. Together with Muzaffarnagar vaulting, the case studies reveal cultural motivations for architectural expression and production in postcolonial India. PART THREE Prototypes \| Comparatives \| Limitations & Extension of Research Part three presents five tile vaulting prototypes in India constructed with local artisans to gain understanding of its cultural reception, assess effective transfer of skills and potential internalisation. Recommendations for tile vaulting’s potential uptake into mainstream architectural production is evaluated by comparing findings against prevalent building methods and by contextualizing current architectural trends and social policy. Limitations and scope for extension of research are also discussed.
163	Shift gray codes Williams, Aaron Michael 11 December 2009 (has links) Combinatorial objects can be represented by strings, such as 21534 for the permutation (1 2) (3 5 4), or 110100 for the binary tree corresponding to the balanced parentheses (()()). Given a string s = s1 s2 sn, the right-shift operation shift(s, i, j) replaces the substring si si+1..sj by si+1..sj si. In other words, si is right-shifted into position j by applying the permutation (j j−1 .. i) to the indices of s. Right-shifts include prefix-shifts (i = 1) and adjacent-transpositions (j = i+1). A fixed-content language is a set of strings that contain the same multiset of symbols. Given a fixed-content language, a shift Gray code is a list of its strings where consecutive strings differ by a shift. This thesis asks if shift Gray codes exist for a variety of combinatorial objects. This abstract question leads to a number of practical answers. The first prefix-shift Gray code for multiset permutations is discovered, and it provides the first algorithm for generating multiset permutations in O(1)-time while using O(1) additional variables. Applications of these results include more efficient exhaustive solutions to stacker-crane problems, which are natural NP-complete traveling salesman variants. This thesis also produces the fastest algorithm for generating balanced parentheses in an array, and the first minimal-change order for fixed-content necklaces and Lyndon words. These results are consequences of the following theorem: Every bubble language has a right-shift Gray code. Bubble languages are fixed-content languages that are closed under certain adjacent-transpositions. These languages generalize classic combinatorial objects: k-ary trees, ordered trees with fixed branching sequences, unit interval graphs, restricted Schr oder and Motzkin paths, linear-extensions of B-posets, and their unions, intersections, and quotients. Each Gray code is circular and is obtained from a new variation of lexicographic order known as cool-lex order. Gray codes using only shift(s, 1, n) and shift(s, 1, n−1) are also found for multiset permutations. A universal cycle that omits the last (redundant) symbol from each permutation is obtained by recording the first symbol of each permutation in this Gray code. As a special case, these shorthand universal cycles provide a new fixed-density analogue to de Bruijn cycles, and the first universal cycle for the "middle levels" (binary strings of length 2k + 1 with sum k or k + 1). shorthand universal cycles combinatorial generation minimal-change order loopless algorithm efficient algorithm combinations multiset permutations balanced parentheses Dyck words Catalan paths Schroder paths Motzkin words linear-extensions posets connected unit interval graphs inversions binary trees k-ary trees Lyndon words pre-necklaces theoretical computer science discrete mathematics combinatorics brute forcs de Bruijn cycles bubble languages cool-lex order lexicographic order combinatorial enumeration stacker-crane problem traveling salesman problem middle levels fixed-density de Bruijn cycle fixed-content

Page generated in 0.0647 seconds