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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.
21

Spiritual intervention on a substance abuse ward

Kendrick, Larry D. January 2003 (has links)
Thesis (D. Min.)--Trinity International University, 2003. / Abstract. Includes bibliographical references (leaves 237-241).
22

Bara ett spel till : Tre delstudier om pengaspel och spelberoende

Carlsén, Anton January 2018 (has links)
Cirka 2 % av Sveriges befolkning beräknas ha ett spelberoende om pengar. Trots ökad medvetenhet om risken att utveckla spelberoende fortsätter spelandet med stora summor. Syftet med delstudie 1 var att undersöka upplevelser och erfarenheter av pengaspel. I en enkät berättade 29 högskolestudenter om erfarenheter av pengaspel. En tematisk innehållsanalys resulterade i tre teman: positiva upplevelser (vinst, nöje), negativa upplevelser (förlust, spelberoende, sociala problem, spelskulder, ointressant) och neutral upplevelse (kontroll). Syftet med Delstudie 2 och 3 var att undersöka spelberoendets effekt på livssituationen utifrån två olika perspektiv. Två män med tidigare spelberoende respektive två kvinnliga samtalsterapeuter intervjuades om sina upplevelser av spelberoendets effekt på livssituationen. En tematisk innehållsanalys resulterade i 13 respektive nio teman som besvarade tre frågeställningar inom vardera delstudie. Spelberoendeupplevelserna i Delstudie 2 innehöll: orealistiska målsättningar, tankefällor, återfall och ökad självinsikt. Spelberoendeupplevelserna i Delstudie 3 innehöll: skeva uppfattningar, storvinster, depression och skulder. Sammantaget var deltagarna negativa till pengaspel.
23

Cinética de amolecimento da liga de alumí­nio AA 7075 durante recozimento após laminação a frio. / Softening behavior during annealing of col-rolled aluminium alloy 7075.

Saul Hissaci de Souza 06 February 2018 (has links)
O presente trabalho apresenta um estudo sobre o amolecimento após laminação e recozimento da AA 7075, uma liga de alumínio endurecível por precipitação . As amostras recebidas no estado T6 foram caracterizadas com auxílio das técnicas de microscopia óptica de luz polarizada, microscopia eletrônica de varredura, espectroscopia de raios X por dispersão de energia, difração de raios X, condutividade elétrica e dureza Vickers . As amostras foram então separadas em dois grupos. O primeiro sofreu um tratamento térmico de solubilização (485°C por 5 horas) enquanto o segundo foi submetido a um tratamento de superenvelhecimento (300°C por 5 horas) e, em seguida, ambos os grupos de amostras tratadas foram novamente caracterizadas pelas técnicas descritas anteriormente (exceto microscopia óptica) e laminadas a frio. Durante a etapa de laminação, constatou-se a dificuldade em causar deformação plástica na amostra solubilizada. Optou-se em conduzir o estudo com as amostras superenvelhecidas, que foram laminadas com reduções de 45%, 75% e 90% em espessura. A seguir, estas foram submetidas a tratamentos isotérmicos e isócronos com o objetivo de estudar a cinética de amolecimento das amostras deformadas a frio. As amostras superenvelhecidas e deformadas em 45% em redução de espessura, apresentaram somente indícios de início de recristalização (nas amostras tratadas a partir de 250°C por 1 hora) via EBSD, sendo que a maior parte do amolecimento pode ser explicada pelo mecanismo de recuperação. Além disso, a cinética de amolecimento das amostras recozidas nesse grupo apresentaram boa concordância com a lei logarítmica proposta por Kulhmann (1948) e (coincidentemente) também com o consolidado modelo JMAK. As amostras superenvelhecidas e deformadas em 75% e 90% apresentaram comportamento similar (isso é, principalmente recuperação) para recozimentos realizados em temperaturas de até 350°C por uma hora. Recozimentos realizados a 400°C promoveram a recristalização total das amostras desse grupo para tempos inferiores a 15 minutos. Dessa forma, não foi possível estudar a cinética de recristalização para esse segundo grupo de amostras. / This work presents a study about the softening after cold rolling and annealing of aluminium alloy AA 7075. Firstly, polarized light optical microscopy, scanning electron microscopy, energy dispersive X-ray spectroscopy, X-ray diffraction, electrical conductivity and Vickers hardness have been used at the starting material (T6). The samples were then separated in two groups. The former underwent a solubilization heat treatment (485°C for 5 hours) whilst the latter underwent an overaging treatment to grow up the existing precipitates (300°C for 5 hours). Both groups of treated samples were again characterized by the techniques described above (except optical microscopy). In the rolling stage, the difficulty in straining the solubilized sample and the relative ease for doing so to the overaged sample was verified. It was therefore decided to conduct the study with the samples of the second group, which were 45%, 75% and 90% rolled in thickness reduction. Then, they underwent isothermal and isochronous treatments in order to study its softening kinetics by Vickers hardness measurements, polarized light optic microscopy and EBSD. The overaged and rolled samples (45% in thickness reduction) didn\'t present evidences of recrystallization except by very few grains found via EBSD (in samples treated from 250 ° C for 1 hour). So, most of the observed softening can be explained by recovery. In addition, the softening kinetics of the annealed samples in this group showed good agreement with the logarithmic law proposed by Kulhmann (1948) and (coincidentally) also with the consolidated JMAK model. The overaged samples that underwent thickness reduction of 75% and 90% showed a similar behavior (that is, mainly recovery) for annealing at temperatures up to 350 ° C. Annealing at 400 ° C promoted total recrystallization of the samples from this group (75% and 90% in thickness reduction) in less than 15 minutes. Thus, it was not possible to study the kinetics of recrystallization for this second group of samples.
24

The effects of teacher behavior on students who have completed treatment for alcohol and drug dependency : a qualitative analysis

Boling, Karen S. 03 June 2011 (has links)
The purpose of this qualitative study was to determine from the treated students' perspective what teacher behaviors facilitate recovery and what teacher behaviors inhibit recovery. Study participants included 16 high school students who had completed treatment for alcohol and drug dependency in grades 9-12, and 112 teachers. Students and teachers were interviewed to better explain the phenomenon from their perspectives. Data gathered from student interviews, student journal recordings, observer notes, and teacher interviews were used as corroborating data. The constant comparative method was used to analyze data (Glaser & Strauss, 1967).Five major themes emerged from the data analysis explaining the effects of teacher behavior on students who had completed treatment for drug and alcohol dependency. The data were segmented into themes using a bi-polar structure. These themes were: (1) student performance; (2) student communication; (3) student relations: security; (4) student: affective; and, (5) authority: student behavior. These themes yielded student identified causal conditions, intervening conditions, and action/reaction strategies that either inhibited or facilitated recovery.The data showed students did not have neutral feelings; they had either negative or positive feelings about their personal interactions with teachers or their observations of teachers' interaction with other teachers and/or other students. Teacher behaviors which resulted in negative student behavior consequences in each of the five major theme categories were not helpful to students and inhibited their recovery. Teacher behaviors which resulted in positive student behavior consequences in each of the five major theme categories helped students and facilitated their recovery.
25

Qualitative analysis of chemically recovering persons who were raised in alcoholic families and their perceptions of treatment plans

Gaff-Clark, Carla J. January 2001 (has links)
The purpose of this study was to gather insights from recovering (from addictions) Adult Children of Alcoholics (ACA) at Pathway to Recovery, Inc., Indianapolis, IN, who have participated in a pilot family addictions treatment group. This research gives evidence on the group counseling support that ACA group members reported they received and/or determined they needed to receive regarding: their (1) addictions and recovery; (2) specific family of origin roles; and (3) basic ACA issues; as well as information needed to continue living a healthy, productive, drug-free life-style, and; the assistance counselors/therapists could give in this endeavor.A case study methodology was used for this research. Eight informants were purposively selected from a total of 45 ACA group members. Three interviews were conducted with each of the eight informants. Retrospective, structured, and semi-structured interviews, as described by Fraenkel and Wallen (1996) were utilized. Since an interview guide was unavailable for use in this study, one was created.The following four conclusions were drawn from the results of this study:1. The evidence collected suggests that the eight informants benefited from the three-pronged (addictions, ACA issues, specific family role) Recovery, Inc.2. The evidence (detailed in Chapter Four) indicated that many of the actions described herein assisted informants after leaving the ACA group and that the group was responsible for many of the positive changes.3. Accepting oneself was identified most often as the step needed to achieve and maintain sobriety.4. Learning about family issues and studying childhood behaviors may be painful as well as helpful.Results of this study were not generalized beyond these eight informants. However, this study contributed new information to the field of addictions and family roles research by describing the actions, behaviors, thoughts and feelings of these eight informants. / Department of Educational Leadership
26

Segurança do paciente no período pós-operatório imediato na sala de recuperação pós-anestésica / Patient security at immediate post-operating period at the post-anesthesia recovery room

Silva, Débora Cristina Pinto 30 May 2008 (has links)
Acredita-se que a segurança do paciente na SRPA depende não só de equipamentos e recursos tecnológicos, mas de recursos humanos, que desenvolvam procedimentos e intervenções de enfermagem, pautados em conhecimento prático e científico, evitando, assim, a ocorrência de eventos adversos e complicações decorrentes da alta complexidade inerente ao processo anestésico-cirúrgico. Sendo assim, os objetivos desse estudo foram: caracterizar os pacientes em SRPA sociodemograficamente; identificar as complicações mais freqüentes; relacionar as complicações às intervenções de enfermagem realizadas; relacionar o esquema de jornada de trabalho dos enfermeiros às complicações. A amostra é composta por 400 prontuários de pacientes maiores de 18 anos, submetidos a procedimentos cirúrgicos de grande e médio porte, admitidos na unidade de SRPA, com tempo de permanência superior à uma hora. O teste de Kolmogorov-Smirnov foi aplicado para testar a normalidade de variáveis quantitativas. O teste exato de Fisher-Freeman-Halton foi utilizado na comparação de proporções em tabelas de contingência maiores que 2x2. Todas as probabilidades de significância com valores de p<0,005 como estatisticamente significantes. Os resultados mostram que a maioria dos pacientes é do sexo masculino, com idade média de 53,3 anos (Dp=16,9 anos), com doença sistêmica leve ou moderada, sem limitação funcional. A comorbidade mais freqüente foi a hipertensão arterial sistêmica (40,7%). As cirurgias mais realizadas foram gerais (62,7%) que incluíram abdominais, urológicas, ginecológicas, e vasculares de grande porte. A anestesia, predominante, foi geral (92,2%). Tempo de permanência em média 111,6 minutos (Dp=67,8). As complicações mais freqüentes foram dor (54%) e hipotermia (43%). Algumas complicações apresentaram relação estatisticamente significante com relação à intervenção de enfermagem como dor e rotina(p<0,0001); dor e oxigenioterapia (p 0,0013); dor e medicação(p 0,0001) e dor e curativo (p<0,0005). Outra complicação que significante foi agitação/ansiedade com intervenção de enfermagem de rotina (p 0,0194) e agitação/ansiedade com oxigenioterapia (p 0,0099). A complicação hipotensão relacionou-se positivamente com a intervenção de enfermagem hidratação (p<0,0005); exames complementares ( p 0,0381) e observação(p 0,0141). A hipertensão apresentou-se estatisticamente significante somente com a relação à observação (p<0,0005). O tremor apresentou relação, significativa com a colocação de manta térmica (p 0,0171) e transfusão sangüínea (p 0,0445); náuseas e vômitos relacionaram-se com a intervenção rotina(p 0,0004), medicação(p<0,0001) e sondagem vesical de alívio(p 0,0224). O sangramento respondeu significantemente à intervenção de rotina (p 0,0064), medicação (p 0,0008) e curativos (p<0,0005). A hipoxemia foi, estatisticamente significante quando relacionada à rotina(p 0,0002) e a oxigenioterapia (p<0,0001). A hipotermia teve uma relação significativa com rotina (p<0,0001), manta térmica (p<0,0001), medicação (p<0,0001). Dor (p 0,0224), náuseas e vômitos (p 0,0131), agitação (p 0,0490) e sangramento (p 0,0001) são complicações que se relacionaram significativamente de forma positiva à jornada de trabalho quando se fixou um enfermeiro na SRPA / There is a believe that patient security at SRPA depends not only on equipments and technological resources, but from human resources that develop procedures and nursing interventions based on practical and scientific knowledge, avoiding adverse events occurrences and complications due to the high complexity inherent in the surgical-anesthesia process. So, the objectives of this study were: characterize SRPA patients socio-demographically; identify the most frequent complications; relate complications to nursing interventions proceeded; relate nurses working journey to complications. The sample is composed by 400 over 18 years old patients\' records, submitted to big/medium surgical procedures, admitted at SRPA unit, standing there for more then one hour. The Kolmogorov-Smirnov test was used to test quantity variables normality. The Fisher-Freeman-Halton exact test was used to compare the proportions on tables bigger then 2x2. All probabilities with significance values from p<0.005 were considered statistically significant. Results show that most of the patients are male, average age 53.3 years old (dP=16.9 years old), with light or moderate systemic ill without functional limitations. Most frequent comorbidity is systemic arterial hypertension (40.7%). Most frequent surgeries were general surgeries (62.7%) which included abdominal, urological, gynecological, and big vascular ones. General anesthesia was the predominant one (92.2%). Average staying time 111.6 minutes (dP=67.8). Most frequent complications were pain (54%) and hypodermis (43%). Some complications showed significant statistical relation between the nursing intervention such as pain and routine (p<0.0001); pain and oxigentherapy (p<0.0013); pain and medication (p<0.0001) and pain and curative (p<0.0005). Another significant complication was agitation/anxiety with a nursing routine intervention (p<0.0194) and agitation/anxiety with oxigentherapy (p<0.0099). Hypotension complication was positively related with the hydrate nursing intervention (p<0.0005); complementary tests (p<0.0381) and observation (p<0.0141). Hypertension was presented statistically significant just related to the observation (p<0.0005). Tremble presented significant relation with using a thermal blanket (p 0.0171) and blood transfusion (p 0.0445); sickness and vomit were related to routine intervention (p 0.0004), medication (p<0.0001) and relieve bladder poll (p 0.0224). Bleeding responded significantly to routine intervention (p 0.0064), medication (p 0.0008) and curatives (p<0.0005). Hypoxemia was statistically significant when related to routine (p 0.0002) and oxygentherapy (p<0.0001). Hypothermia was significantly related to routine (p<0.0001), thermal blanket (p<0.0001), medication (p<0.0001). Pain (p 0.0224), sickness and vomit (p 0.0131), agitation (p 0.0490) and bleeding (p 0.0001) are complications that are significantly positively related to working journey when a nurse was fixed at the SRPA
27

Segurança do paciente no período pós-operatório imediato na sala de recuperação pós-anestésica / Patient security at immediate post-operating period at the post-anesthesia recovery room

Débora Cristina Pinto Silva 30 May 2008 (has links)
Acredita-se que a segurança do paciente na SRPA depende não só de equipamentos e recursos tecnológicos, mas de recursos humanos, que desenvolvam procedimentos e intervenções de enfermagem, pautados em conhecimento prático e científico, evitando, assim, a ocorrência de eventos adversos e complicações decorrentes da alta complexidade inerente ao processo anestésico-cirúrgico. Sendo assim, os objetivos desse estudo foram: caracterizar os pacientes em SRPA sociodemograficamente; identificar as complicações mais freqüentes; relacionar as complicações às intervenções de enfermagem realizadas; relacionar o esquema de jornada de trabalho dos enfermeiros às complicações. A amostra é composta por 400 prontuários de pacientes maiores de 18 anos, submetidos a procedimentos cirúrgicos de grande e médio porte, admitidos na unidade de SRPA, com tempo de permanência superior à uma hora. O teste de Kolmogorov-Smirnov foi aplicado para testar a normalidade de variáveis quantitativas. O teste exato de Fisher-Freeman-Halton foi utilizado na comparação de proporções em tabelas de contingência maiores que 2x2. Todas as probabilidades de significância com valores de p<0,005 como estatisticamente significantes. Os resultados mostram que a maioria dos pacientes é do sexo masculino, com idade média de 53,3 anos (Dp=16,9 anos), com doença sistêmica leve ou moderada, sem limitação funcional. A comorbidade mais freqüente foi a hipertensão arterial sistêmica (40,7%). As cirurgias mais realizadas foram gerais (62,7%) que incluíram abdominais, urológicas, ginecológicas, e vasculares de grande porte. A anestesia, predominante, foi geral (92,2%). Tempo de permanência em média 111,6 minutos (Dp=67,8). As complicações mais freqüentes foram dor (54%) e hipotermia (43%). Algumas complicações apresentaram relação estatisticamente significante com relação à intervenção de enfermagem como dor e rotina(p<0,0001); dor e oxigenioterapia (p 0,0013); dor e medicação(p 0,0001) e dor e curativo (p<0,0005). Outra complicação que significante foi agitação/ansiedade com intervenção de enfermagem de rotina (p 0,0194) e agitação/ansiedade com oxigenioterapia (p 0,0099). A complicação hipotensão relacionou-se positivamente com a intervenção de enfermagem hidratação (p<0,0005); exames complementares ( p 0,0381) e observação(p 0,0141). A hipertensão apresentou-se estatisticamente significante somente com a relação à observação (p<0,0005). O tremor apresentou relação, significativa com a colocação de manta térmica (p 0,0171) e transfusão sangüínea (p 0,0445); náuseas e vômitos relacionaram-se com a intervenção rotina(p 0,0004), medicação(p<0,0001) e sondagem vesical de alívio(p 0,0224). O sangramento respondeu significantemente à intervenção de rotina (p 0,0064), medicação (p 0,0008) e curativos (p<0,0005). A hipoxemia foi, estatisticamente significante quando relacionada à rotina(p 0,0002) e a oxigenioterapia (p<0,0001). A hipotermia teve uma relação significativa com rotina (p<0,0001), manta térmica (p<0,0001), medicação (p<0,0001). Dor (p 0,0224), náuseas e vômitos (p 0,0131), agitação (p 0,0490) e sangramento (p 0,0001) são complicações que se relacionaram significativamente de forma positiva à jornada de trabalho quando se fixou um enfermeiro na SRPA / There is a believe that patient security at SRPA depends not only on equipments and technological resources, but from human resources that develop procedures and nursing interventions based on practical and scientific knowledge, avoiding adverse events occurrences and complications due to the high complexity inherent in the surgical-anesthesia process. So, the objectives of this study were: characterize SRPA patients socio-demographically; identify the most frequent complications; relate complications to nursing interventions proceeded; relate nurses working journey to complications. The sample is composed by 400 over 18 years old patients\' records, submitted to big/medium surgical procedures, admitted at SRPA unit, standing there for more then one hour. The Kolmogorov-Smirnov test was used to test quantity variables normality. The Fisher-Freeman-Halton exact test was used to compare the proportions on tables bigger then 2x2. All probabilities with significance values from p<0.005 were considered statistically significant. Results show that most of the patients are male, average age 53.3 years old (dP=16.9 years old), with light or moderate systemic ill without functional limitations. Most frequent comorbidity is systemic arterial hypertension (40.7%). Most frequent surgeries were general surgeries (62.7%) which included abdominal, urological, gynecological, and big vascular ones. General anesthesia was the predominant one (92.2%). Average staying time 111.6 minutes (dP=67.8). Most frequent complications were pain (54%) and hypodermis (43%). Some complications showed significant statistical relation between the nursing intervention such as pain and routine (p<0.0001); pain and oxigentherapy (p<0.0013); pain and medication (p<0.0001) and pain and curative (p<0.0005). Another significant complication was agitation/anxiety with a nursing routine intervention (p<0.0194) and agitation/anxiety with oxigentherapy (p<0.0099). Hypotension complication was positively related with the hydrate nursing intervention (p<0.0005); complementary tests (p<0.0381) and observation (p<0.0141). Hypertension was presented statistically significant just related to the observation (p<0.0005). Tremble presented significant relation with using a thermal blanket (p 0.0171) and blood transfusion (p 0.0445); sickness and vomit were related to routine intervention (p 0.0004), medication (p<0.0001) and relieve bladder poll (p 0.0224). Bleeding responded significantly to routine intervention (p 0.0064), medication (p 0.0008) and curatives (p<0.0005). Hypoxemia was statistically significant when related to routine (p 0.0002) and oxygentherapy (p<0.0001). Hypothermia was significantly related to routine (p<0.0001), thermal blanket (p<0.0001), medication (p<0.0001). Pain (p 0.0224), sickness and vomit (p 0.0131), agitation (p 0.0490) and bleeding (p 0.0001) are complications that are significantly positively related to working journey when a nurse was fixed at the SRPA
28

Caracterização ecofisiológica de espécies nativas da Mata Atlântica sob dois níveis de estresse induzidos pelo manejo florestal em área de restauração florestal no Estado de São Paulo / Ecophysiology of native species of the atlantic forest under two environmental stress levels induced by silvicultural practices in a restored area of Sao Paulo State

Servin, Cláudia Maria Iannelli 19 April 2007 (has links)
Com o objetivo de estudar o desenvolvimento de espécies florestais nativas em área de restauração florestal e sob diferentes condições de estresse, foi avaliado o desempenho e respostas de 20 espécies florestais nativas crescidas sob duas diferentes condições de manejo, que resultam em maior (manejo usual) e menor nível de estresse (manejo máximo, com maiores doses de fertilizantes e sempre livre de matocompetição). As parcelas foram selecionadas em experimento instalado na Estação Experimental de Anhembi, da USP (latitude 22&#176;47&#39; S e longitude 48&#176;09&#39; W), implantado em área de pastagem degradada em março de 2004, e avaliado aos 2,5 anos. As parcelas experimentais selecionadas estavam no espaçamento de 3 m x 2 m, possuindo 1270 m2 de área total e 792 m2 de área útil, com 132 plantas mensuráveis, com quatro repetições. As variáveis de crescimento estudadas foram: altura, diâmetro a 30 cm do solo, volume e área foliar específica) e as fisiológicas foram: fotossíntese, clorofila a, clorofila b, clorofila total, proteínas totais solúveis, teores foliares de macronutrientes. Mediram-se todas as plantas para as variáveis dendrométricas e três plantas médias, para as análises fisiológicas. Os resultados foram analisados como um fatorial 2x2, sendo os fatores grupo sucessional (pioneiras e não pioneiras) e manejo (usual e máximo). As espécies pioneiras apresentaram maiores valores de crescimento e sobrevivência que as espécies não pioneiras, independentemente do manejo utilizado. Os volumes das espécies pioneiras foram 27 maiores que as não pioneiras sob manejo usual e de 5 vezes maiores sob manejo máximo. O manejo silvicultural máximo, que propicia menor estresse ambiental, apresentou maiores valores de crescimento e sobrevivência que o manejo usual, com maior estresse ambiental, independentemente do grupo sucessional. O volume do manejo máximo foi de 4,6 vezes maior que no manejo usual para as pioneiras e de 25,5 vezes maior para as não pioneiras. As espécies pioneiras apresentaram maiores atividades fotossintéticas (fotossíntese, clorofila a e proteínas solúveis totais) que as espécies não pioneiras, independentemente do manejo utilizado. As taxas de fotossíntese das espécies pioneiras foram 52% maiores que as não pioneiras sob manejo usual e de 40% maiores sob manejo máximo. O manejo silvicultural máximo apresentou maiores valores das variáveis fisiológicas do que o manejo usual, independentemente do grupo sucessional. A taxa de fotossíntese do manejo máximo foi 18% maior que o manejo usual para as pioneiras e de 30% maior para as não pioneiras. As não pioneiras apresentaram, em média, maior flexibilidade que as espécies pioneiras, apesar de não significativo, dada a alta variabilidade da flexibilidade das espécies dentro dos grupos. Com base nos resultados, e para fins de orientação na escolha das espécies para plantio de acordo com as práticas silviculturais a serem utilizadas (com maior ou menor aliviação dos estresses), propôs-se que as espécies nativas sejam agrupadas em 4 classes, de acordo com o seu ritmo de crescimento e nível de flexibilidade volumétrica. / The study purpose is to evaluate the development of 20 native species in a area under restoration and submitted to two levels of environmental stress according to silvicultural practices. The usual practices has a higher level of stress and the maximum practices resulted in a lower level of stress, due to a higher fertilization regime and a complete weed-control. The experimental plots were selected from a experiment located on the Experimental station of USP in Anhembi (22&#176;47&#39; S and 48&#176;09&#39; W), planted in a pasture in march 2004, and evaluated at 2,5 years-old. The plots were planted in a 3 m x 2 m spacing, with 1270 m2 of total area and 792 m2 of usable area, with 132 trees, with four replications. The variables measured were high, diameter at 30 cm and volume. Physiological variables included photosynthesis, a b and total chlorophyll, total soluble proteins and leaf macronutrients, besides specific leaf area. All trees of each plot were measure for growth estimates and three trees per species and management for the physiological variables. The analysis were done considering a 2 x 2 factorial design with the factors ecological group (pioneers and non pioneer) and silviculture (usual and maximum). The pioneer species had a better growth than non pioneer. The volume of the pioneer species were 27-fold larger than non pioneers under usual silviculture and 5- fold larger under maximum silviculture. The maximum silviculture showed a 4,6-fold larger volumetric growth compared with the usual silviculture dor pioneers species, and 25,5-fold larger growth for non pioneer ones. Pioneer species also showed larger physiological metabolisms than non pioneer ones. Photosynthesis of the pioneers were 52% larger than the non pioneer under usual silviculture and 40% under maximum silviculture. Photosynthesis were also enlarged by maximum silviculture between 18 and 30%. In general, non pioneer species were more flexible (larger responses to the alliviation of stress) than pioneer species, although there were a large variability. The results allowed the establishment of 4 classes of species, classified by growth rate and flexibility, with can be used to better recommendation of species to different restoration conditions.
29

Robust estimation of structure from motion in the uncalibrated case

van den Hengel, Anton January 2000 (has links)
A picture of a scene is a 2-dimensional representation of a 3-dimensional world. In the process of projecting the scene onto the 2-dimensional image plane, some of the information about the 3-dimensional scene is inevitably lost. Given a series of images of a scene, typically taken by a video camera, it is sometimes possible to recover some of this lost 3-dimensional information. Within the computer vision literature this process is described as that of recovering structure from motion. If some of the information about the internal geometry of the camera is unknown, then the problem is described as that of recovering structure from motion in the uncalibrated case. It is this uncalibrated version of the problem that is the concern of this thesis. Optical flow represents the movement of points across the image plane over time. Previous work in the area of structure from motion has given rise to a so-called differential epipolar equation which describes the relationship between optical flow and the motion and internal parameters of the camera. This equation allows the calibration of a camera undergoing unknown motion and having an unknown, and possibly varying, focal length. Obtaining accurate estimates of the camera motion and internal parameters in the presence of noisy optical flow data is critical to the structure recovery process. We present and compare a variety of methods for estimating the coefficients of the differential epipolar equation. The goal of this process is to derive a tractable total least squares estimator of structure from motion robust to the presence of inaccuracies in the data. Methods are also presented for rectifying optical flow to a particular motion estimates, eliminating outliers from the data, and calculating the relative motion of a camera over an image sequence. This thesis thus explores the application of numerical and statistical techniques for the estimation of structure from motion in the uncalibrated case. / Thesis (Ph.D.)--Mathematical and Computer Sciences (Department of Computer Science), 2000.
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Recovery as sanctification helping addicted men become holy men /

Schumacher, Charles. January 2003 (has links)
Thesis (D. Min.)--Trinity International University, 2003. / Abstract. Includes bibliographical references (leaves 199-211).

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