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  • 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.
61

Determinação de compostos fenólicos em extratos de Amburana cearensis (Fr. All.) A.C. Smith e em aguardentes de cana envelhecidas do Ceará / Phenolic compounds determination in extracts of Amburana cearensis (Fr.All) B.C Smith and in aged cachaças of (sugar cane spirits),of the Ceará

Aquino, Francisco Wendel Batista de January 2004 (has links)
AQUINO, Francisco Wendel Batista de. Determinação de compostos fenólicos em extratos de Amburana cearensis (Fr. All.) A.C. Smith e em aguardentes de cana envelhecidas do Ceará. 2004. 93 f. : Dissertação (mestrado) - Universidade Federal do Ceará, Centro de Ciências Agrárias, Departamento de Tecnologia de Alimentos, Fortaleza-CE, 2004 / Submitted by Nádja Goes (nmoraissoares@gmail.com) on 2016-06-06T14:26:36Z No. of bitstreams: 1 2004_dwbaquino.pdf: 804397 bytes, checksum: d248b5367d483bca25455d2d78e53112 (MD5) / Approved for entry into archive by Nádja Goes (nmoraissoares@gmail.com) on 2016-06-06T14:26:57Z (GMT) No. of bitstreams: 1 2004_dwbaquino.pdf: 804397 bytes, checksum: d248b5367d483bca25455d2d78e53112 (MD5) / Made available in DSpace on 2016-06-06T14:26:57Z (GMT). No. of bitstreams: 1 2004_dwbaquino.pdf: 804397 bytes, checksum: d248b5367d483bca25455d2d78e53112 (MD5) Previous issue date: 2004 / It was analyzed, by high performance liquid chromatography - HPLC, low molecular weight phenolic compounds (Gallic Acid, 5-(hydroxymethyl)furfural(HMF), Furfural, Vanillic Acid, Syringc Acid, Vanillin, Syringaldehyde, Coniferaldehyde, Sinapaldehyde and Coumarin) in aged cachaças (sugar cane spirits), originated of all the producing regions of the Ceará State and in extracts of Amburana cearensis (Fr. All.) A. C. Smith. The objective it was stablished the profile of these compounds in the cachaça from Ceará and also investigated the potential of the extracts of Amburana as source of these analytes in cachaça on the aging period. The validation of the analytic methodology, based on procedures used for the analysis of these substances in different aging beverages, it constituted the initial point of this work. Soon after, the comparison of the phenolics content was contemplated in extracts of Amburana in relation to the oak and Balm. In a third moment, they were researched routines for optimize the gain in the extracts of Amburana and, finally, they took place analyses in aged cachaças. The found values were compared with aged commercial cachaças of great acceptance by the consumers. In relation to the analytic method, the reached results demonstrated the conformity of the methodology before all the necessary parameters so that the analytic procedure obtained the status of Validated Method. The variations, and the new stages proposed for the most usual procedures to obtaining of woods extracts, they presented satisfactory results and the profile, so much qualitative as quantitative, obtained for the low molecular weight phenolic compounds for the cachaça from Ceará, it was revealed compatible with the most popular commercial cachaças, leaders in sales in the States of Ceará, Pernambuco and still with the more another one originated of state of Minas Gerais and distributed nationally by a great supermarket net. This way, the work supplies important information for the conduction the aging cachaças, with or without the employment of extracts, and still for the evaluation of the truth, or not, aging attributed to one cachaça. / Foram analisados, por cromatografia líquida de alta eficiência – CLAE, compostos fenólicos de baixo peso molecular (Ácido Gálico, 5-hidroximetilfurfural, Furfural, Ácido Vanílico, Ácido Siríngico, Vanilina, Siringaldeído, Coniferaldeído, Sinapaldeído e Cumarina) em cachaças envelhecidas, originadas de todas as regiões produtoras do Estado do Ceará e em extratos de Amburana cearensis (Fr. All.) A. C. Smith. O objetivo foi o de estabelecer o perfil destes compostos na cachaça cearense e de avaliar o potencial dos extratos de Amburana como fonte destes compostos para cachaças no período de envelhecimento. A validação da metodologia analítica, baseada em procedimentos usados para a análise destes analitos em diferentes matrizes, constituiu a fase inicial deste trabalho. Em seguida, contemplou-se a comparação do conteúdo de fenólicos em extratos de Amburana em relação aos de Carvalho e de Bálsamo. Num terceiro momento, pesquisaram-se rotinas para a maximização do rendimento nos extratos de Amburana e, finalmente, realizaram-se análises em cachaças envelhecidas. Os valores encontrados foram comparados com cachaças comerciais envelhecidas de grande aceitação pelos consumidores. Em relação ao método analítico, os resultados alcançados demonstraram a conformidade da metodologia perante todos os parâmetros necessários para que o procedimento analítico obtivesse o status de método validado. As variações, e as novas etapas propostas para os procedimentos mais usuais de obtenção de extratos, apresentaram resultados satisfatórios e o perfil, tanto qualitativo como quantitativo, obtido para os compostos fenólicos de baixo peso molecular para as cachaças envelhecidas cearenses, revelou-se compatível com o que se tem para cachaças envelhecidas comerciais, líderes em vendas nos Estados do Ceará, Pernambuco e ainda com o de uma outra originada de Minas Gerais e distribuída nacionalmente por uma grande rede de supermercado. Desta forma, o trabalho fornece importantes informações para a condução do envelhecimento de cachaças, com ou sem o emprego de extratos, e ainda para a avaliação da veracidade, ou não, do envelhecimento atribuído a uma cachaça.
62

DeterminaÃÃo de compostos fenÃlicos em extratos de Amburana cearensis (Fr. All.) A.C. Smith e em aguardentes de cana envelhecidas do Cearà / Phenolic compounds determination in extracts of Amburana cearensis (Fr.All) B.C Smith and in aged cachaÃas of (sugar cane spirits),of the CearÃ

Francisco Wendel Batista de Aquino 27 September 2004 (has links)
nÃo hà / Foram analisados, por cromatografia lÃquida de alta eficiÃncia â CLAE, compostos fenÃlicos de baixo peso molecular (Ãcido GÃlico, 5-hidroximetilfurfural, Furfural, Ãcido VanÃlico, Ãcido SirÃngico, Vanilina, SiringaldeÃdo, ConiferaldeÃdo, SinapaldeÃdo e Cumarina) em cachaÃas envelhecidas, originadas de todas as regiÃes produtoras do Estado do Cearà e em extratos de Amburana cearensis (Fr. All.) A. C. Smith. O objetivo foi o de estabelecer o perfil destes compostos na cachaÃa cearense e de avaliar o potencial dos extratos de Amburana como fonte destes compostos para cachaÃas no perÃodo de envelhecimento. A validaÃÃo da metodologia analÃtica, baseada em procedimentos usados para a anÃlise destes analitos em diferentes matrizes, constituiu a fase inicial deste trabalho. Em seguida, contemplou-se a comparaÃÃo do conteÃdo de fenÃlicos em extratos de Amburana em relaÃÃo aos de Carvalho e de BÃlsamo. Num terceiro momento, pesquisaram-se rotinas para a maximizaÃÃo do rendimento nos extratos de Amburana e, finalmente, realizaram-se anÃlises em cachaÃas envelhecidas. Os valores encontrados foram comparados com cachaÃas comerciais envelhecidas de grande aceitaÃÃo pelos consumidores. Em relaÃÃo ao mÃtodo analÃtico, os resultados alcanÃados demonstraram a conformidade da metodologia perante todos os parÃmetros necessÃrios para que o procedimento analÃtico obtivesse o status de mÃtodo validado. As variaÃÃes, e as novas etapas propostas para os procedimentos mais usuais de obtenÃÃo de extratos, apresentaram resultados satisfatÃrios e o perfil, tanto qualitativo como quantitativo, obtido para os compostos fenÃlicos de baixo peso molecular para as cachaÃas envelhecidas cearenses, revelou-se compatÃvel com o que se tem para cachaÃas envelhecidas comerciais, lÃderes em vendas nos Estados do CearÃ, Pernambuco e ainda com o de uma outra originada de Minas Gerais e distribuÃda nacionalmente por uma grande rede de supermercado. Desta forma, o trabalho fornece importantes informaÃÃes para a conduÃÃo do envelhecimento de cachaÃas, com ou sem o emprego de extratos, e ainda para a avaliaÃÃo da veracidade, ou nÃo, do envelhecimento atribuÃdo a uma cachaÃa. / It was analyzed, by high performance liquid chromatography - HPLC, low molecular weight phenolic compounds (Gallic Acid, 5-(hydroxymethyl)furfural(HMF), Furfural, Vanillic Acid, Syringc Acid, Vanillin, Syringaldehyde, Coniferaldehyde, Sinapaldehyde and Coumarin) in aged cachaÃas (sugar cane spirits), originated of all the producing regions of the Cearà State and in extracts of Amburana cearensis (Fr. All.) A. C. Smith. The objective it was stablished the profile of these compounds in the cachaÃa from Cearà and also investigated the potential of the extracts of Amburana as source of these analytes in cachaÃa on the aging period. The validation of the analytic methodology, based on procedures used for the analysis of these substances in different aging beverages, it constituted the initial point of this work. Soon after, the comparison of the phenolics content was contemplated in extracts of Amburana in relation to the oak and Balm. In a third moment, they were researched routines for optimize the gain in the extracts of Amburana and, finally, they took place analyses in aged cachaÃas. The found values were compared with aged commercial cachaÃas of great acceptance by the consumers. In relation to the analytic method, the reached results demonstrated the conformity of the methodology before all the necessary parameters so that the analytic procedure obtained the status of Validated Method. The variations, and the new stages proposed for the most usual procedures to obtaining of woods extracts, they presented satisfactory results and the profile, so much qualitative as quantitative, obtained for the low molecular weight phenolic compounds for the cachaÃa from CearÃ, it was revealed compatible with the most popular commercial cachaÃas, leaders in sales in the States of CearÃ, Pernambuco and still with the more another one originated of state of Minas Gerais and distributed nationally by a great supermarket net. This way, the work supplies important information for the conduction the aging cachaÃas, with or without the employment of extracts, and still for the evaluation of the truth, or not, aging attributed to one cachaÃa.
63

From normality to risk : a qualitative exploration of health visiting and mothering practices following the implementation of Health for all Children

King, Caroline Anne January 2013 (has links)
The overall aim of this study is to explore how health visiting and mothering practices have been shaped by the implementation of Health for All Children (Hall). ‘Hall’ denotes a programme of work around child health surveillance and promotion published in four reports between 1989 and 2003. The fourth Hall report (Hall 4) marked a shift towards a more targeted approach to service provision, predominantly through the work of health visitors, yet aimed to meet the needs of all families with young children. The study explores how health visitors’ work practices have been shaped by this new policy context, including how it has influenced their relationships with families as well as the profession as a whole. It also examines the experiences of mothers, their relationships with health visitors, and how they negotiate and manage their children’s health and well-being. A review of Scottish policy reveals an early years agenda focused on risk and early intervention; and that community nursing has been at the centre of, and shown resistance to, a number of policy directives over the last decade. A review of the existing literature explores the relationship between evidence and Hall and identifies health visitors as the profession charged with its implementation. Literature on mothering and fathering exposes a focus on parenting in policy which belies the gendered nature of caring for children. The empirical study reported in this thesis is located theoretically in relation to the shifting emphasis in disciplinary practices shaping child health from normality to risk. The study uses a qualitative approach and took place within the Lothian region of Scotland. Initially, discussions with policy-makers and practitioners working in the early years, nationally and locally, were carried out to scope the context for the study. Semi-structured interviews with 16 health visitors and 20 mothers were then undertaken and analysed thematically, with the findings chapters shaped through an iteration between theory and grounded analysis of the accounts of the health visitors and mothers. The health visitors’ accounts reveal the changing nature and form of their knowledge and expertise and the implications of this for their practice and profession. The discussions of health visiting practice identify the important roles of observation and relationships work with families, in homes and clinics over time, and how these activities enable health visitors to construct knowledge of families. The interviews with mothers suggest a blurring between lay and professional knowledge where normality is defined by mothers themselves and through their relationships with health visitors. While the mothers work to construct themselves as morally adequate, attention to the stories mothers tell, and, in particular, the emotion in them, suggests that vulnerability can be experienced by any mother. This phenomenon sits in contrast to increasing attention by professionals placed on the monitoring and policing of ‘vulnerable’ families while opportunities for observation and relationships work diminish. The study concludes by exploring key conceptual issues. It considers shifts between normality and risk and how these are shaping how vulnerability is constituted through health visiting practice. In conjunction, it explores the implications of changing health visiting practices, for health visitors, as a profession. Finally, the scope for the health visiting profession to shape policy and practice are considered.
64

A PERSONAL TELEMETRY STATION

Hui, Yang, Shanzhong, Li, Qishan, Zhang 10 1900 (has links)
International Telemetering Conference Proceedings / October 17-20, 1994 / Town & Country Hotel and Conference Center, San Diego, California / In this paper, a PCM telemetry system based on Personal computer is presented and some important methods that are used to realize the system will be introduced, such as a new kind of all digital PLL bit synchronizer and a way to solve the problem of high-rate data storage. The main idea of ours is to make the basic parts of PCM telemetry system (except receiver) in the form of PC cards compatible with EISA Bus, which forms a telemetry station with resource of PC computer. Finally, a laboratory prototype with rate up to 3.2Mbps is built.
65

Vilken förbättring i visus ger begagnade glasögon hos hjälpsökande i Bolivia?

Nordström, Malin January 2010 (has links)
<p><p><strong>Bakgrund: </strong>World Health Organization, WHO, har i sina studier visat att det globalt finns 279 miljoner människor med synnedsättning, av dessa beror 98 miljoner på okorrigerade refraktionsfel och representationen är störst i utvecklingsländer hos personer över 50 år.</p><p><strong>Syfte:</strong> Syftet med denna studie var att ta reda på vilken förbättring i avståndsvisus hjälpsökande i Bolivia får med begagnade glasögon från Vision for all, VFA, och samtidigt titta på hur fördelningen av refraktionsfel ser ut i jämförelse med andra delar av världen.</p><p><strong>Metod & Material</strong>: Projektet utfördes i samarbete med VFA under en resa till Bolivia i april 2010. Tre städer i Bolivia besöktes och försökspersonerna fick själva söka upp undersökningsplatsen. En enklare synundersökning, där bästa sfäriska styrka togs fram binokulärt, utfördes av tre optikerstudenter och en legitimerad optiker. Snellen E-hake användes tillsammans med provbåge, provglas och flipprar. Resultatet journalfördes och analyserades och jämfördes sedan med studier från andra delar av världen.</p><p><strong>Resultat</strong>: I studien ingår 1083 försökspersoner mellan 6 och 92 år, varav 622 var emmetropa, 300 hyperopa, ≥ +0,25D, och 161 myopa, ≥-0,25D. Medelvärdet på fri/habituell visus hos hela populationen var 0,81±0,24, där 16,4% av försökspersonerna hade fri/habituell binokulär visus på 0,5 eller högre. När bästa korrektion tagits fram hade 89,3% binokulär visus på 0,8 eller högre. Medelvärdet på korrigerad visus för hela populationen var 0,91±0,14, vilket är en signifikant förbättring (p<0,001). Då man jämförde resultatet med studier från andra delar av världen såg man att hyperopi förekomsten i Bolivia var högre än i alla andra studier. Myopi förekomsten påminde mest om den i USA i de äldre åldergrupperna och Afrika i de yngre åldergrupperna.</p><p><strong>Slutsats</strong>: Studien visar att VFA med hjälp av en enkel synundersökning och begagnande glasögon gör en förbättring i visus hos människorna i Bolivia. Förbättringen innebär inte bara ett bättre seende utan även en bättre livskvalitet och ökad möjlighet till utbildning och arbete.</p></p>
66

Hur stora är forierna/tropierna hos hjälpsökande i Bolivia? : En studie utförd under en resa med Vision for all

Ris, Emma January 2010 (has links)
<p><p><strong>Syfte</strong>: Syftet med denna studie är att undersöka hur stora forierna och tropierna är hos de människor som söker hjälp för sin syn hos Vision for all i Bolivia.</p><p><strong>Metod</strong>: En enkel subjektiv refraktion utfördes binokulärt. Efter utprovad korrektion gjordes ett covertest på avstånd för att se om patienten hade någon fori eller tropi. Om någon fori eller tropi upptäcktes mättes denna upp med ett prismacovertest.</p><p><strong>Resultat</strong>: Av 1118 undersökta personer var det 58 som hade en fori som mättes upp. 9 personer hade någon form av tropi och 8 av tropierna mättes upp. 52 av forierna var exofori och 6 var esofori. Storlekarna på exoforierna som uppmättes var mellan 2Δ och 14Δ, där 2Δ var vanligast förekommande. Storlekarna på esoforierna som uppmättes var mellan 2Δ och 35Δ. 1042 personer hade ortofori.</p><p><strong>Slutsats</strong>: Studien visar att medelvärdet bland forierna var 2.33Δ exofori. Studien visar även att förekomsten av både forier och tropier är mindre i jämförelse med resultat från tidigare studier.</p></p>
67

New Algorithm and Data Structures for the All Pairs Shortest Path Problem

Hashim, Mashitoh January 2013 (has links)
In 1985, Moffat-Takaoka (MT) algorithm was developed to solve the all pairs shortest path (APSP) problem. This algorithm manages to get time complexity of O(n² log n) expected time when the end-point independent model of probabilistic assumption is used. However, the use of a critical point introduced in this algorithm has made the implementation of this algorithm quite complicated and the running time of this algorithm is difficult to analyze. Therefore, this study introduces a new deterministic algorithm for the APSP that provides an alternative to the existing MT algorithm. The major advantages of this approach compared to the MT algorithm are its simplicity, intuitive appeal and ease of analysis. Moreover, the algorithm was shown to be efficient as the expected running time is the same O(n² log n). Performance of a good algorithm depends on the data structure used to speed up the operations needed by the algorithm such as insert, delete-min and decrease-key operations. In this study, two new data structures have been implemented, namely quaternary and dimensional heaps. In the experiment carried out, the quaternary heap that employed similar concept with the trinomial heap with a special insertion cache function performed better than the trinomial heap when the number of n vertices was small. Likewise, the dimensional heap data structure executed the decrease-key operation efficiently by maintaining the thinnest structure possible through the use of thin and thick edges, far surpassing the existing binary, Fibonacci and 2-3 heaps data structures when a special acyclic graph was used. Taken together all these promising findings, a new improved algorithm running on a good data structure can be implemented to enhance the computing accuracy and speed of todays computing machines.
68

DISTAT MOTSTÅND : Motståndsartikulationer i all-trans/female-punkbands låttexter

Kling, Gina January 2014 (has links)
Syfte och frågeställningar: Uppsatsens syfte är att lyfta fram motståndsartikulationer i låttexter skrivna av aktiva all-trans/female-punkband. Frågeställningarna behandlar låttexternas teman, deras referenspunkter, bandens val av mottståndsstrategi och vart detta motstånd riktas. Teori: Huvudsakligen har motståndsforskarna Mona Lilja och Stellan Vinthagens bok Motstånd (2009) använts för att beskriva hur motstånd verkar i förhållande till makt. Judith Butlers Genustrubbel (2007) har använts för att exemplifiera makt- och motståndsverkan kopplat till kön. Metod: Låttexterna har analyserats kvalitativt och tolkats i relation till det omgivande samhällets maktstrukturer. På så sätt har tema och referenspunkter utlästs. Hur motståndet artikuleras i låttexterna har sedan beskrivits med hjälp av uppsatsens teoretiska utgångspunkter. Resultat: Det har funnits ett stort omfång av motståndsartikulationer i alla nio låttexter. Motståndet har främst riktats mot patriarkala maktstrukturer. De tre bandens motståndsartikulationer går att särskilja genom de olika motståndsstrategier de använder sig av för att adressera patriarkatet. Matriarkatet använder sig av humor, Korp av symboliskt våldsamma artikulationer och Flocken av både det symbolisk våldsamma och artikulationer som kritiserar begränsande normer och ideal.
69

An assessment of the political and social feasibility of a peacetime draft

Batt, Patricia Mara 12 1900 (has links)
Approved for public release; distribution unlimited / What is the political feasibility of a peacetime draft? Throughout this nation's history, the military manning debate has focused upon two separate schools of thought. On the one hand, there are those who believe that a "professional" force, comprised of experienced, career military personnel, is needed for national defense. At the same time, others have argued that a force composed of armed citizens is the best expression of democratic, "citizensoldier" ideals. A return to conscription has been proposed as the best means of remedying the deficiencies resulting from a market-based recruiting system. However, the fact is that Americans are quite satisfied with the current system (according to a 1984 survey). This thesis seeks to place the draft revival question within the framework of the philosophical and historical issues that have helped to shape the nation's attitudes toward military service. A major conclusion of the study is that political acceptability of a peacetime draft in the United States is highly questionable. / http://archive.org/details/assessmentofpoli00batt / Lieutenant, United States Navy
70

The prevalenceof anterior segment and crystalline lens changes in a Nicaraguan population.

Nisa, Georgette January 2016 (has links)
Abstract Aim: The purpose of this study was to find the prevalence of different ocular changes in the anterior segment of the eye and changes in the crystalline lens among Nicaraguan population. Method: The study was done during a journey to Nicaragua with the organization VFA and Synoptik that lasted for two weeks in March/April. There were a total of 134 participants with 71 females and 63 males. The average age of the study participants was 50 (±20) years and the age ranged from 7 to 97 years. The total sample size was collected in the three towns that we visited during the journey: Ticuantepe, Léon and Estéli. The changes were evaluated by direct ophthalmoscopy. Conjunctiva was examined by asking the patients to look into different gaze directions. Cornea and crystalline lens was examined by asking the patient to look directly at the ophthalmoscope. Results: 31% out of the participants enrolled in this study were healthy with no visible ocular changes. The remaining 69% had ocular changes with majority of them having either cataract, pterygium or pinguecula. The prevalence of cataract was 24%, pterygium 20%, pinguecula 10%. There were other minor ocular changes such as red eye in 4%, arcus senilis in 4%, ptosis in 1%, and aphakia in 1% seen in these participants. Conclusion: The UV related changes had the highest prevalence. This study like previous studies have shown that cataract was most prevalent ocular change in this population.

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