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Littérature scientifique sur le sujet « Restoration trials »

Auteur : Grafiati
Publié le 9 mars 2023
Mis à jour le 10 mars 2023

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Articles de revues sur le sujet "Restoration trials"

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Peng, Guodong, et Hui Yan. « Short-term and long-term outcomes of zirconium dioxidebased dental restorations, and it effects on masticatory function ». Tropical Journal of Pharmaceutical Research 21, no 6 (10 août 2022) : 1301–7. http://dx.doi.org/10.4314/tjpr.v21i6.24.

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Purpose: To investigate the short- and long-term outcomes of zirconium dioxide-based restorations (ZDBR), and changes in masticatory function (MF).Methods: One hundred and two (102) patients who received restorative dentistry procedures were divided into two groups using random number method: control group (CG, n = 52, alloy-based restorations) and study group (SG, n = 50, zirconium dioxide restorations). Treatment efficacy, quality, levels of IL-8 and IL-6 in gingival sulcus fluid, and satisfaction scores were compared.Results: The SG showed better outcomes and restoration quality than CG. After restoration, SG showed greater decrease in IL-8 and IL-6 levels than CG (p < 0.05), while IL-8 and IL-6 levels were higher in SG and CG than those before restoration (p < 0.05). After 1 and 6 months of restoration, SG showed increased dental appearance satisfaction and a higher success rate than CG (p < 0.05). Occlusal force and MF were significantly improved in both groups (p < 0.05). Gingival index, bleeding index, plaque index, and tooth looseness after restoration significantly improved in both groups, but were lower in SG than in CG (p < 0.05).Conclusion: In oral restorations, ZDBR is more effective in terms of short-term and long-term outcomes. Patients' occlusal force and MF are better restored, and patients' quality of life is also significantly improved. Therefore, ZDBR in oral restorations is feasible but further clinical trials are required.
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Mickenautsch, Steffen, et Veerasamy Yengopal. « Failure Rate of Direct High-Viscosity Glass-Ionomer Versus Hybrid Resin Composite Restorations in Posterior Permanent Teeth - a Systematic Review ». Open Dentistry Journal 9, no 1 (23 décembre 2015) : 438–48. http://dx.doi.org/10.2174/1874210601509010438.

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Purpose Traditionally, resin composite restorations are claimed by reviews of the dental literature as being superior to glass-ionomer fillings in terms of restoration failures in posterior permanent teeth. The aim of this systematic review is to answer the clinical question, whether conventional high-viscosity glass-ionomer restorations, in patients with single and/or multi-surface cavities in posterior permanent teeth, have indeed a higher failure rate than direct hybrid resin composite restorations. Methods Eight databases were searched until December 02, 2013. Trials were assessed for bias risks, in-between datasets heterogeneity and statistical sample size power. Effects sizes were computed and statistically compared. A total of 55 citations were identified through systematic literature search. From these, 46 were excluded. No trials related to high-viscosity glass-ionomers versus resin composite restorations for direct head-to-head comparison were found. Three trials related to high-viscosity glass-ionomers versus amalgam and three trials related to resin composite versus amalgam restorations could be included for adjusted indirect comparison, only. Results The available evidence suggests no difference in the failure rates between both types of restoration beyond the play of chance, is limited by lack of head-to-head comparisons and an insufficient number of trials, as well as by high bias and in-between-dataset heterogeneity risk. The current clinical evidence needs to be regarded as too poor in order to justify superiority claims regarding the failure rates of both restoration types. Sufficiently large-sized, parallel-group, randomised control trials with high internal validity are needed, in order to justify any clinically meaningful judgment to this topic.
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Mundi, Raman, Asheesh Bedi, Linda Chow, Sarah Crouch, Nicole Simunovic, Elizabeth Sibilsky Enselman et Olufemi R. Ayeni. « Cartilage Restoration of the Knee ». American Journal of Sports Medicine 44, no 7 (2 juillet 2015) : 1888–95. http://dx.doi.org/10.1177/0363546515589167.

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Background: Focal cartilage defects of the knee are a substantial cause of pain and disability in active patients. There has been an emergence of randomized controlled trials evaluating surgical techniques to manage such injuries, including marrow stimulation (MS), autologous chondrocyte implantation (ACI), and osteochondral autograft transfer (OAT). Purpose: A meta-analysis was conducted to determine if any single technique provides superior clinical results at intermediate follow-up. Study Design: Systematic review and meta-analysis of randomized controlled trials. Methods: The MEDLINE, EMBASE, and Cochrane Library databases were systematically searched and supplemented with manual searches of PubMed and reference lists. Eligible studies consisted exclusively of randomized controlled trials comparing MS, ACI, or OAT techniques in patients with focal cartilage defects of the knee. The primary outcome of interest was function (Lysholm score, International Knee Documentation Committee score, Knee Osteoarthritis Outcome Score) and pain at 24 months postoperatively. A meta-analysis using standardized mean differences was performed to provide a pooled estimate of effect comparing treatments. Results: A total of 12 eligible randomized trials with a cumulative sample size of 765 patients (62% males) and a mean (±SD) lesion size of 3.9 ± 1.3 cm2 were included in this review. There were 5 trials comparing ACI with MS, 3 comparing ACI with OAT, and 3 evaluating different generations of ACI. In a pooled analysis comparing ACI with MS, there was no difference in outcomes at 24-month follow-up for function (standardized mean difference, 0.47 [95% CI, –0.19 to 1.13]; P = .16) or pain (standardized mean difference, –0.13 [95% CI, –0.39 to 0.13]; P = .33). The comparisons of ACI to OAT or between different generations of ACI were not amenable to pooled analysis. Overall, 5 of the 6 trials concluded that there was no significant difference in functional outcomes between ACI and OAT or between generations of ACI. Conclusion: There is no significant difference between MS, ACI, and OAT in improving function and pain at intermediate-term follow-up. Further randomized trials with long-term outcomes are warranted.
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Finner, Andreas, Berthold Rzany et Jerry Shapiro. « Evidence Based Hair Restoration : Designing Clinical Trials ». International Society of Hair Restoration Surgery 16, no 3 (mai 2006) : 85–89. http://dx.doi.org/10.33589/16.3.0085.

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Doshi, Peter, Florence Bourgeois, Kyungwan Hong, Mark Jones, Haeyoung Lee, Larissa Shamseer, O'Mareen Spence et Tom Jefferson. « Adjuvant-containing control arms in pivotal quadrivalent human papillomavirus vaccine trials : restoration of previously unpublished methodology ». BMJ Evidence-Based Medicine 25, no 6 (17 mars 2020) : 213–19. http://dx.doi.org/10.1136/bmjebm-2019-111331.

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PurposeTrustworthy reporting of quadrivalent human papillomavirus (HPV) vaccine trials is the foundation for assessing the vaccine’s risks and benefits. However, several pivotal trial publications incompletely reported important methodological details and inaccurately described the formulation that the control arms received. Under the Restoring Invisible and Abandoned Trials initiative (RIAT), we aim to restore the public record regarding the content and rationale of the controls used in the trials.MethodsWe assembled a cohort (five randomised controlled trials) described as placebo-controlled using clinical study reports (CSRs) obtained from the European Medicines Agency. We extracted the content and rationale for the choice of control used in each trial across six data sources: trial publications, register records, CSR synopses, CSR main bodies, protocols and informed consent forms.ResultsAcross data sources, the control was inconsistently reported as ‘placebo’-containing aluminium adjuvant (sometimes with dose information). Amorphous aluminium hydroxyphosphate sulfate (AAHS) was not mentioned in any trial registry entry, but was mentioned in all publications and CSRs. In three of five trials, consent forms described the control as an ‘inactive’ substance. No rationale for the selection of the control was reported in any trial publication, register, consent form, CSR synopsis or protocol. Three trials reported the rationale for choice of control in CSRs: to preserve blinding and assess the safety of HPV virus-like particles as the ‘safety profile of (AAHS) is well characterised’.ConclusionsThe stated rationale of using AAHS control—to characterise the safety of the HPV virus-like particles—lacks clinical relevance. A non-placebo control may have obscured an accurate assessment of safety and the participant consent process of some trials raises ethical concerns.Trial registration numbersNCT00092482, NCT00092521, NCT00092534, NCT00090220, NCT00090285.
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Nakabayashi, Itsuki, Shin Aiba et Taro Ichiko. « Pre-Disaster Restoration Measure of Preparedness for Post-Disaster Restoration in Tokyo ». Journal of Disaster Research 3, no 6 (1 décembre 2008) : 407–21. http://dx.doi.org/10.20965/jdr.2008.p0407.

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Learning from the 1995 Hanshin-Awaji Earthquake, Tokyo Metropolitan Government has been preparing the restoration and reconstruction measures from a huge amount of damages caused by next Tokyo Earthquake. We are developing the methodology of earthquake restoration exercise with local government and residents according to TMG's restoration measures. In this paper, such unique trials of pre-disaster restoration measures in Tokyo are introduced and evaluated.
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Hayashi, M., N. H. F. Wilson et D. C. Watts. « Quality of Marginal Adaptation Evaluation of Posterior Composites in Clinical Trials ». Journal of Dental Research 82, no 1 (janvier 2003) : 59–63. http://dx.doi.org/10.1177/154405910308200113.

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The evaluation of margins of restorations in clinical trials relies on the subjective assessment of evaluators, with no instrument having been developed, let alone validated, to assist in the process. The purpose of the present study was to assess the quality of evaluations of marginal adaptation by analyzing the distribution of marginal steps rated according to clinical criteria. Replicas of 435 restorations, the marginal qualities of which had been evaluated according to modified USPHS criteria, were randomly selected from the Occlusin TM multi-center clinical trial program. The marginal step height in the most deteriorated area of each restoration was measured by means of a digital step-height instrument. An overlap between the steps in the restorations with A (Alfa; replacement unnecessary) and B (Bravo; replacement questionable) ratings was found to be in the range of 101 μm to 321 μm. When the steps with a height greater or less than one standard deviation of the mean were excluded, the overlap was reduced to a range of 168 μm to 173 μm. This finding indicates a marginal height boundary between A and B ratings for marginal adaptation of 170 ± 3 μm.
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&NA;. « Spinal Cord Injury Clinical Trials for Functional Restoration ». American Journal of Physical Medicine & ; Rehabilitation 84, supplement (novembre 2005) : S99. http://dx.doi.org/10.1097/00002060-200511001-00005.

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&NA;. « Spinal Cord Injury Clinical Trials for Functional Restoration ». American Journal of Physical Medicine & ; Rehabilitation 84, supplement (novembre 2005) : S100. http://dx.doi.org/10.1097/00002060-200511001-00006.

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Nelson, Shannon V., Neil C. Hansen, Matthew D. Madsen, Val Jo Anderson, Dennis L. Eggett et Bryan G. Hopkins. « Superabsorbent Polymer Use in Rangeland Restoration : Glasshouse Trials ». Land 12, no 1 (11 janvier 2023) : 232. http://dx.doi.org/10.3390/land12010232.

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Post-disturbance rangeland restoration efforts are often thwarted due to soil moisture deficits. Superabsorbent polymers (SAPs) absorb hundreds of times their weight in water, increasing soil moisture when the SAP is mixed with soil. The objective of this study was to evaluate banded SAPs under the soil surface to increase plant available water and thus seedling establishment for perennial rangeland species during restoration efforts. Five glasshouse experiments with two rangeland perennial grass species, bottlebrush squirreltail (Elymus elymoides) or Siberian wheatgrass (Agropyron fragile), were conducted. Treatments varied, including SAP rates ranging from 11–3000 kg ha−1 with placement mostly banded at depths extending from the surface up to a 15 cm depth. Generally, SAPs increased soil moisture at all rates and depths for up to 49 days. However, rates ≥ 750 kg ha−1 caused the soil to swell and crack, potentially hastening soil drying later in the season. Seedling longevity was increased up to 12 days, especially at the high SAP band rate of 3000 kg ha−1 when the band was 8 or 15 cm deep. Further work is needed to verify banded SAP rates and placement depths in the field, ascertain conditions to reduce soil displacement, and evaluate benefits across species.
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Thèses sur le sujet "Restoration trials"

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Adkins, Suzanne Craig. « Population Biology and Restoration of Intertidal Cockle Beds ». Thesis, University of Canterbury. School of Biological Sciences, 2012. http://hdl.handle.net/10092/7794.

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There is evidence that infaunal bivalves in New Zealand are not as abundant as they once were with overfishing and habitat modification contributing to the decline in density and health of cockles. The population biology and abundance of the bivalve Austrovenus stutchburyi (tuangi) in eight beds in four estuaries was assessed both seasonally (13 seasons) and annually (7 years) as little is known about the cockle beds in the Canterbury region of New Zealand. As with populations of similar species worldwide, there were site specific differences in population structure (density and size ranges) with the highest densities at Takamatua (>1500/m²), and the lowest at Port Levy (<350/m²). Gonad indices varied between male and female cockles. Male reproductive cycles were similar at all sites with male cockles being reproductively active year round, while females were more active in spring and summer. Temporal and spatial site specific differences occurred in cockle condition with high salinity sites having higher condition indices (CI) than low salinity sites. There were spatial and temporal variations in salinity (3-35ppt), sediment structure (fine sand through to predominantly silt), water temperature (6-20°C), nutrient supply (total volatile solids (TVS) 0.002- 0.15mg/L) and contaminant levels. Metal pollution indices (MPI) ranged between 3 and 11. Three cockle transplant trials were undertaken both within and between estuarine systems. Caged cockles survived well, and cage design needed to allow vertical movement of the bivalves within the substrate to reduce mortality. At the end of the 12 month trial, approximately 45% of the cockles remained in the plots. The condition of transplanted cockles was similar to naturally occurring cockles. Recommendations are made to optimise the success of cockle transplants. Large scale, un-caged placement of 25-30mm length cockles in the mid-low tide region of areas with stable, but not necessarily uncontaminated substrate, moderate salinity and temperature and with a reliable nutrient supply is recommended. The results from the thesis research can be applied to other infaunal bivalves in New Zealand allowing more successful restoration processes leading to increased species diversity and ecosystem functioning.
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GILARDELLI, FEDERICA. « Vegetation dynamics and restoration trials in limestone quarries : the botticino case study (Brescia, Italy) ». Doctoral thesis, Università degli Studi di Milano-Bicocca, 2013. http://hdl.handle.net/10281/42003.

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Background. All over the world, the naturalistic restoration of abandoned quarry areas represents a real challenge because of the very adverse initial site conditions for plant species colonization. In order to identify the best restoration practices, the present thesis considered, as a case study, the “Botticino extractive basin” (Lombardy, Italy), that is today the second greatest Italian extractive basin and it is famous worldwide for the limestone extraction. In particular, the thesis proposes a multidisciplinary approach based on the study of the local vegetation dynamics, laboratory tests, plant selection for restoration and field experiments to test different restoration techniques. Methods. Spontaneous vegetation dynamics over the whole extractive basin was studied by an ecological approach through 108 plots, that were carried out on surfaces whose “disused time” from quarry abandonment was known; data were analysed by cluster analysis and Canonical Correspondence Analysis (CCA) and compared to the available data on grassland and woodlands related to the study area. We identified successional phases according to the trend of the most common species whose cover significantly increases or decreases with time. To assess the influence of geomorphological heterogeneity on vegetation succession, we studied morphology and ecology of plant species growing on the following three main geomorphological quarry surfaces: artificial cliffs, dump deposits and quarry platforms; data were subjected to statistical analysis (contingency tables) and CCA. Since any restoration project should ensure the soil stabilisation of quarry dump deposits, the contribution of herbaceous root systems to limit superficial movements was studied by calculating the root cohesion of three herbaceous species with different types of root systems (Anthyllis vulneraria, Bromus erectus and Stachys recta). To this aim, we made 421 tensile strength tests by the Stable Micro System TA Hd Plus apparatus and we collected root traits by means of image analysis and the software Winrhizo. In the view of field experiments regarding quarry restoration projects, we carried out some preliminary tests and analysis, such as: a) germination tests on some common species characterizing the local vegetation succession; b) planning the structure and the species composition of the tree layer by using natural woodlands as reference model; c) collection and characterization of the hayseed coming from a “donor grassland” close to the Botticino extractive basin. We performed field experiments in an apposite site of about 600 m2 (consisting in three terraces almost horizontal) selected on a fully exploited quarry inside the Botticino extractive basin. Topsoil showed a clayey texture and some physical (e.g. limited soil depth, high stoniness) and chemical (very alkaline pH, low availability of nutrients) limitations. We tested three different restoration methods: 1) terrace A: hydroseeding of hayseed and plantation of shrub and trees; 2) terrace B: traditional hydroseeding of a commercial seeds mixture and plantation of shrub and trees; 3) terrace C: only plantation of shrub and trees without herb layer. In the tree layer of the three terraces, 98 individuals per terrace were planted (main species: Quercus pubescens, Fraxinus ornus, Cotinus coggygria, Ostrya carpinifolia). One year after the experiment, we collected vegetation data by means of 3 x 3 m plots in which we measured some species traits, e.g. species cover, mean plant height of the herbaceous layers, number of dead individuals; in addition we collected further species traits for each species in four subplot (20 x 20 cm): e.g. number of individuals, cover, maximum plant height. Data were subjected to CCA and compared to reference sites, i.e. the “donor grassland” and a quarry area spontaneously revegetated. Main results. Sinchronic analysis of vegetation allowed to identify 10 plant communities and to assigned them to 5 successional phases: a) pioneer phase (0-2 years from abandonment), b) early phase (3-10 years), c) intermediate phase (11-22 years), d) later phase (23-44 years) and e) advanced phase (>44 years). B. erectus showed the highest value of root cohesion thanks to the high volume of the root system and to the high root tensile strength. Moreover, the selection of herbaceous species should also take into account that root tensile strength strongly decreased with root diameter according to a potential curve and that, as for root volume, it is species-specific. As regards restoration trials, terrace C showed the lowest vegetation cover (15%), plant height and biomass production (16.33 g/m2). Terrace B showed the highest herbaceous plant height (100 cm) and biomass production (355.23 g/m2), although determined only by 6 species (with a clear dominance of Lolium perenne). On the other hand, terrace A showed similar plant height (93.3 cm), but lower biomass production (190.19 g/m2) and a much higher number of species (16), anyway lower than those on the donor grassland (28). As concerns the number of dead tree and shrub in the experimental site, for each single species we recorded the greatest number of dead plants on the terrace B (74.49%), while 18.37% of plants died on terrace A, and only 4.08% on terrace C. Discussion and Conclusion. The succession in the quarry area was partially similar to a primary one and was affected by environmental factors (e.g. stoniness, slope) immediately after the pioneer phase, so that different types of vegetation community grew on different morphological surfaces at the same time. In particular, dump deposits resulted similar to platforms for ecological features and dominant species traits, while artificial cliffs differed significantly, being mostly affected by rockiness and slope. Considering the time needed for the spontaneous vegetation succession and the cost of restoration interventions, human efforts are recommended on dump deposits and platforms. Results also highlighted that the use of species belonging to the Poaceae family (or/and with a fasciculated root system) are recommended for their attitude to stabilize superficial soil layers.The planting of shrub and tree followed by the sowing of hayseed could be a suitable method to ensure a successful restoration. In this way the death of shrub and trees due to the plant competition with the herb layer is avoided and suitable biodiversity levels are ensured. The present thesis provides a procedure for the restoration of calcareous quarries that can be applied on large scale, directing human efforts to reduce the economic costs for restoration.
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Michel, James T. Helfield James M. « Seed rain and selected species germination and growth trials : implications for natural and augmented revegetation of post-dam Elwha River floodplain and reservoir sediments / ». Online version, 2010. http://content.wwu.edu/cdm4/item_viewer.php?CISOROOT=/theses&CISOPTR=361&CISOBOX=1&REC=5.

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Keefer, Chelsea Elizabeth. « Use of Plant Growth Regulators to Expand the Period of Sagebrush Seed Germination and Reduce the Risk of Restoration Failure : Laboratory Trials ». BYU ScholarsArchive, 2019. https://scholarsarchive.byu.edu/etd/8576.

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Seed germination during unhospitable environmental conditions can be a major barrier to direct seeding efforts in dryland systems. In the sagebrush steppe, Artemisia tridentata Nutt. ssp. wyomingensis and Artemisia arbuscula are important shrub species that are being used in restoration, but seeding success is highly sporadic due to inter-annual and intra-seasonal weather variability. Altering and expanding the period of germination, as a form of bet-hedging, may improve plant establishment. Our objective was to determine if we could expand the period of germination using plant growth regulators (PGRs) applied in a conglomerated seed coating treatment. In a laboratory study, the seed was either left untreated, conglomerated separately with two concentrations of a germination inhibitor, abscisic acid (ABA), or with two different germination promoters, gibberellic acid (GA3) and 1-Aminocyclopropane carboxylic acid (ACC), a precursor to ethylene. Seeds were incubated in a loam soil at five constant temperatures (5-25 C) for approximately three months. Results indicate that seed treatments with PGRs can delay or speed germination. The greatest response to the seed treatments was observed at 5 C. For example, at this temperature PGRs delayed the time for 25% of the seeds to germinate by a maximum of 35 and 21 d and decreased this time by 5 and 25 d for A. t. ssp. Wyomingensis and A. arbuscula, respectively. Field studies are needed to determine if the bet-hedging strategy developed in this study will increase the likelihood that some seeds will germinate during periods that are more favorable for plant establishment.
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Camargo, Márcio Neves. « Efeito da aplicação prolongada do sistema adesivo convencional de dois passos na qualidade de restaurações de resina composta em lesões cervicais não cariosas : Ensaio clínico controlado, randomizado, duplo cego ». Universidade Estadual do Oeste do Paraná, 2018. http://tede.unioeste.br/handle/tede/3879.

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This double-blind randomized clinical trial evaluates the influence of increased application time in two adhesive system two-step etch-and-rinse (Peak® Universal Bond (P); Ultradent Products Ind and Single Link (SL); Angelus Dental Products Industry) applied in non-carious cervical lesions (NCCLs). Methods: A total of 219 restorations were randomly placed in 35 patients according to the following groups: P1 - applied according to the manufacturer’s; P2X – applied for the double time; SL1 and SL2X (the same application mode). The resin composite Amelogen (Ultradent) was placed incrementally. The restorations were evaluated immediately (baseline) and 6 months, using the FDI and USPHS criteria. Statistical analyses were performed using appropriate tests (=0.05). Results: Twenty-four restorations were lost at 6 months (4 for P1, 2 for P2X, 9 for SL1 and 9 for SL2X) (p < 0.05 between groups). Post-operative sensitivity wasn’t observed in any of the recall periods. Thrity-five restorations were considered to have minor discrepancies in marginal adaptation at the 6-month recall using the FDI criteria (8 for P1, 7 for P2X, 12 for SL1 and 8 for SL2X; p > 0.05 between groups). Ten restorations were considered to have minor discrepancies in marginal discoloration at the 6-month recall (2 for P1, 1 for P2X, 3 for SL1 and 2 for SL2X; p > 0.05 between groups). Conclusion: The increased application time of adhesive system two-step etch-and-rinse didn’t improve the clinical behavior of composite restorations placed in NCCLs. In the meantime, clinical behavior may be influenced by the composition of adhesive systems.
Este ensaio clínico controlado randomizado, duplo cego avaliou a influência do aumento do tempo de aplicação em dois sistemas adesivos convencionais de dois passos, Peak® Universal Bond (P) (Ultradent Products Ind) e Single Link (SL) (Angelus Dental Products Industry) aplicados para restaurar lesões cervicais não cariosas (LCNC). Material e Método: No desenho experimental um total de 219 restaurações foram distribuídas aleatoriamente em 35 pacientes de acordo com os seguintes grupos: P1 e SL1 - aplicados de acordo com o fabricante por 10s; P2X e SL2X - aplicados por 20 s. A resina composta Amelogen (Ultradent) foi colocada de forma incremental. As restaurações foram avaliadas imediatamente (baseline), e em 6 meses, utilizando os critérios FDI e USPHS. As análises estatísticas foram realizadas utilizando testes de Friedman e Mc Nemar (α = 0,05). Resultado: Vinte e quatro restaurações foram perdidas aos 6 meses (4 para P1, 2 para P2X, 9 para SL1 e 9 para SL2X) (p<0,05). A sensibilidade pós-operatória não foi relatada durante a avaliação. Trinta e cinco restaurações apresentaram pequenas discrepâncias na adaptação marginal usando os critérios FDI (8 para P1, 7 para P2X, 12 para SL1 e 8 para SL2X; p>0,05 entre os grupos). Oito restaurações apresentaram pequena discrepância no manchamento marginal na avaliação de 6 meses (2 para P1, 1 para P2X, 3 para SL1 e 2 para SL2X; p> 0,05 entre grupos). Conclusão: Aumentar o tempo de aplicação do sistema adesivo convencional de dois passos não melhora o desempenho clínico das restaurações em resina compostas realizadas em LCNCs. Entretanto, este desempenho/performance pode ser influenciado pela composição dos sistemas adesivos.
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Benetti, Ana Raquel. « Avaliação clínica e laboratorial de resina composta em função da fotoativação com diferentes fontes de luz e densidades de potência ». Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/25/25131/tde-11102007-100914/.

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O objetivo deste estudo foi avaliar o desempenho clínico e laboratorial de uma resina composta, considerando diferentes fontes de luz e densidades de potência, mantendo-se padronizada a densidade total de energia. O grau de conversão da resina composta foi determinado através de espectroscopia por transformada de Fourier. O grau de amolecimento em etanol foi obtido pela determinação da dureza Wallace, antes e após o armazenamento da resina composta em etanol a 75%. O desgaste foi mensurado por dois métodos: o teste da ACTA e o teste de escovação simulada. Paralelamente, investigou-se o desempenho clínico de restaurações de resina composta em dentes posteriores, submetidas aos mesmos protocolos de fotoativação. Restaurações de classe I de resina composta foram confeccionadas e fotoativadas por lâmpada de quartzo-tungstênio ou diodo emissor de luz a 300 mW/cm2, durante 40 segundos, ou a 600 mW/cm2, durante 20 segundos. As restaurações foram avaliadas, imediatamente e após 6 e 12 meses, por dois examinadores calibrados, de acordo com os critérios modificados de Ryge. Os dados laboratoriais foram submetidos à análise de variância a dois critérios e teste de comparações múltiplas de Newman-Keuls, ou ao teste t-pareado. Os dados clínicos foram analisados pelos testes Kappa, Fisher e McNemar (\'alfa\' = 0,05). Não foram constatadas diferenças significantes quanto aos diferentes protocolos no grau de conversão, no grau de amolecimento em etanol e no desgaste produzido pelo método da ACTA (p > 0,05). Para o teste de desgaste por escovação simulada, a fotoativação com diodos emissores de luz a 300 mW/cm2, durante 40 segundos, resultou em maior desgaste que os demais protocolos testados (p < 0,05). Adicionalmente, não foram observadas diferenças significantes quanto aos diferentes protocolos de fotoativação no desempenho clínico das restaurações, ao final de um ano de avaliação (p > 0,05)
The aim of this study was to evaluate the clinical and laboratorial performance of a resin composite light-cured with different light-curing units and power densities, at a standard energy density level. Degree of conversion of the resin composite was determined by Fourier transformed infrared spectroscopy. The degree of softening of the resin composite in ethanol was obtained by Wallace hardness measurements before and after storage in a 75% ethanol solution. Wear of the resin composite was acquired by two methods: ACTA wear and toothbrush abrasion. Additionally, the clinical performance of resin composite restorations submitted to the same light-curing protocols was followed up. Class I resin composite restorations were light-cured using either halogen lamp or light emitting diode at 300 mW/cm2 during 40 seconds or 600 mW/cm2 during 20 seconds. Restorations were evaluated immediately and after 6 and 12 months by two calibrated dentists, according to the modified Ryge criteria. The laboratorial data were submitted to two-way analysis of variance and Newman- Keuls multiple comparison test, or t-test. Clinical data were analyzed by Kappa, Fisher and McNemar tests (\'alpha\' = 0.05). No significant differences were observed for the different light-curing protocols in the degree of conversion, degree of softening in ethanol, and wear produced by the ACTA method (p > 0.05). For the toothbrush abrasion test, irradiation with the light emitting diode unit for 40 seconds at 300 mW/cm2 resulted in higher wear than the other light-curing protocols (p < 0.05). No significant differences were detected at the one-year clinical follow-up of the resin composite restorations submitted to the various light-curing protocols investigated in this study (p > 0.05).
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Thomas, Tracy A. « Predicting restoration of competence to stand trial demographic, clinical, and legal variables / ». Morgantown, W. Va. : [West Virginia University Libraries], 2010. http://hdl.handle.net/10450/10878.

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Thesis (Ph. D.)--West Virginia University, 2010.
Title from document title page. Document formatted into pages; contains v, 56 p. : ill. Includes abstract. Includes bibliographical references (p. 30-35).
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Tang, Josephine Jessica. « An Examination of Competency Restoration in a South Florida Community-Based Setting ». Thesis, NSUWorks, 2010. https://nsuworks.nova.edu/cps_stuetd/70.

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An Examination of Competency Restoration Training in a South Florida Community-based Setting by Josephine J. Tang, M.S. Doctor of Philosophy, Nova Southeastern University, 2010 Dr. David Shapiro, Chairperson The deficiency in competency restoration programs according to the literature (Grudzinskas & Clayfield, 2004) is that this intervention only provides a limited treatment to satisfy the legal requirements. There is also lack of research that examines the efficacy of treatment for incompetent defendants and the duration of competency restoration (Nicholson & McNulty, 1992). The present study examined a competency restoration program for pre-trial individuals. Those (BAP group) who received psychotherapy, competency restoration training, and medication were compared with those (BA group) who did not receive psychotherapy to determine which group will obtain competency faster and maintain it longer. The survival analyses did not find any significant difference between the groups in regard to duration of competency. Propensity scores were based on the logistic regression of psychotherapy on other covariates. Psychotherapy was not statistically significant in three way analyses. When all covariates were unadjusted, the hazard ratio was 2.09 (p = 0.13). When using the propensity score as a continuous variable, the hazard ratio was 1.75 (p = 0.70) and when using the propensity score in quintiles, the hazard ratio was 1.84 (p = 0.42). The probability is that participants in the BAP group are twice as likely to obtain competency as participants of the BA group. Although this result did not reach a significant level, the effect size is meaningful. The three analyses yielded similar results and identical direction. Logistic regression was used to examine the correlation between the treatment time and being judged incompetent among the individuals who were initially judged competent. Individuals of the BA group had slightly lower odds of being judged competent and later to relapse than those in the BAP group. Relapse of competency occurred more frequently in individuals diagnosed with psychotic symptoms, low intellectual functioning, and/or neurological deficit. The findings suggested that severe and persistent mental disorder is a chronic condition that requires long-term care and consideration for more comprehensive treatment.
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Rodrigues, Roger Borges. « Avaliação clínica longitudinal de restaurações de uma resina composta bulk-fill em dentes posteriores ». reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2016. http://hdl.handle.net/10183/152664.

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Objetivos: O objetivo deste ensaio clínico randomizado foi avaliar o comportamento de restaurações de resina composta bulk-fill em dentes posteriores (classes I e II). Metodologia: Dezessete pacientes que necessitavam de restaurações em pelo menos dois dentes posteriores foram selecionados para participar do estudo. As causas para indicação das restaurações foram: substituição de restauração deficiente de amálgama ou resina composta e/ou lesão de cárie. Em cada paciente foram realizadas duas restaurações. Randomicamente, uma cavidade foi restaurada com a resina nanohíbrida Esthet-X HD (grupo controle) e a outra restaurada com a resina Esthet-X HD associada à resina de baixa contração Surefil SDR Flow (grupo teste). Em ambos os grupos, um sistema adesivo convencional de dois passos (XP Bond) foi utilizado. Todos os pacientes receberam tratamento global para a atividade cariosa. Após um período de quatro anos, a qualidade das restaurações foi avaliada por 1 examinador previamente calibrado, através de uma modificação do método USPHS e através do método FDI. Os dados obtidos foram submetidos à análise estatística pelo teste não-paramétrico Mann-Whitney (p<0,05) e a concordância intra-observador avaliada através de teste Kappa. Resultados: No quarto ano de acompanhamento, 26 dentes (18 restaurações classe I e 8 classe II) foram avaliadas, e não foram observadas diferenças estatisticamente significantes entre as restaurações dos grupos controle e teste para os métodos de avaliação utilizados. Não houve falhas em nenhuma das restaurações ao longo do tempo. Conclusão: A qualidade das restaurações classe I e II com resina bulk-fill foi semelhante à das restaurações com resina nanohíbrida convencional. A técnica com resina bulk-fill mostrou bom desempenho clínico tão bom quanto a convencional durante os 4 anos de acompanhamento.
Objectives: The objective of this randomized clinical trial was to evaluate the behavior of bulk-fill composite restorations in posterior teeth (classes I and II). Methodology: Seventeen patients who required restorations on at least two posterior teeth were selected to participate in the study. The causes for indication of restorations were: replacement of deficient amalgam or composite resin restoration and/or caries lesion. In each patient, two restorations were performed. Randomly, one cavity was restored with Esthet-X HD nanohybrid composite (control group) and the other was restored with Esthet-X HD resin associated with the bulk-fill composite Surefil SDR Flow (test group). In both groups, a two-step total-etch adhesive system (XP Bond) was used. All patients received global treatment for carious activity. After a period of four years, the quality of the restorations was evaluated by a previously calibrated examiner, through a modification of the USPHS method and through the FDI method. The data were submitted to statistical analysis by the non-parametric Mann-Whitney test (p <0.05) and the intra-observer agreement was evaluated by Kappa test. Results: At the 4-year follow-up, 26 teeth (18 class I and 8 class II restorations) were evaluated, and no statistically significant differences between control and test groups were observed for both evaluation methods used. There were no failures in any of the restorations over time. Conclusion: The quality of class I and II restorations with bulk-fill resin was similar to that of conventional nanohybrid resin. The bulk-fill composite technique showed good clinical performance as well as the conventional one during the 4 years of follow-up.
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Pereira, Joanna Tatith. « Longevidade de restaurações adesivas em dentes decíduos posteriores submetidos à remoção total ou seletiva de tecido cariado : um estudo multicêntrico ». reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2016. http://hdl.handle.net/10183/152662.

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A técnica da remoção seletiva de tecido cariado (RSTC) para lesões de cárie profundas em dentina de dentes decíduos e permanentes, já é consenso na literatura e é sustentada por pesquisas que demonstram excelentes resultados clínicos, radiográficos e microbiológicos. No entanto, a longevidade de restaurações adesivas realizadas após a RSTC, principalmente na dentição decídua, vem gerando algumas dúvidas e preocupações quanto ao seu desempenho, merecendo esclarecimentos. O objetivo deste estudo randomizado, controlado e multicêntrico foi comparar a taxa de sucesso de restaurações adesivas realizadas em dentes decíduos posteriores após a remoção total (RTTC) ou seletiva (RSTC) de tecido cariado ao longo de 30 meses. Métodos: Crianças de 4 a 8 anos de idade portadoras de pelo menos duas lesões cavitadas ativas em metade interna de dentina (metade interna da dentina na avaliação do RX interproximal e com pelo menos 1mm de dentina separando a lesão cariosa da polpa) e que se enquadrassem nos critérios de inclusão e exclusão participaram do estudo. Para cada criança os dentes (no mínimo dois, mas podendo ser mais) foram aleatoriamente divididos de acordo com os seguintes tratamentos: RTTC (grupo controle) ou RSTC (grupo teste). Nos casos em que ocorreu exposição pulpar, o dente foi devidamente tratado e excluído da amostra, os dados em relação ao tipo de remoção de tecido cariado que levou à exposição foram coletados. Quatro instituições participaram do estudo (Universidade Federal do Rio Grande do Sul; Universidade de São Paulo; Universidade Peruana Cayetano Heredia; Universidade Internacional do Equador), resultando em quatro odontopediatras que realizaram os procedimentos de remoção de tecido cariado e posterior restauração em resina composta, avaliadas clinicamente no baseline, 6, 12, 18, 24 e 30 meses. Todos os procedimentos foram realizados sob anestesia local e isolamento absoluto. Características sociodemográficas foram coletadas no baseline e características clínicas como índice ceod/CPOD, índice de placa visível (IPV) e índice de sangramento gengival (ISG) foram coletados em todos os períodos de acompanhamento. Em todos os momentos experimentais foram avaliados os aspectos clínicos das restaurações por um examinador cego e calibrado através do índice FDI adaptado. Para determinar as taxas de sucesso das restaurações de resina composta foram geradas curvas de sobrevida com o estimador Kaplan-Meyer para cada grupo avaliado, assim como as taxas de falha anual das restaurações. O modelo de regressão de Cox com falhas compartilhadas foi realizado para avaliar diferenças nas taxas de sobrevida das restaurações de acordo com o tratamento, instituição e características clínicas e demográficas da amostra. Resultados: Cento e seis crianças (51 meninos e 55 meninas) colaboraram com 278 dentes submetidos a restaurações adesivas, 137 após RTTC e 141 após RSTC. Oito exposições pulpares ocorreram no grupo da RTTC e quatro no grupo da RSTC. A taxa global de sucesso das restaurações foi 87,1% (85,4% para RTTC e 88,7% para RSTC) e o tempo médio de sobrevida foi de 30 meses. A taxa anual de falha foi de 7% após 24 meses de acompanhamento. Não houve diferença no risco de falha (TR) de acordo com o grupo de tratamento (TR 0,75; IC 95%: 0,38-1,46) e instituição (USP TR 0,44; IC 95%: 0,94-2,09; PERU TR 0,92; IC 95%: 0,26-3,19 EQUADOR TR 1,39; IC 95%: 0,45-4,28). Foram encontradas observações análogas em relação a todas as variáveis clínicas e demográficas. Conclusões: As restaurações adesivas realizadas em dentes decíduos com lesões cavitadas profundas em dentina apresentam sobrevida satisfatória após 33 meses de acompanhamento, independentemente da técnica realizada para remoção de tecido cariado.
The selective caries removal technique (SCR) for active deep carious lesions in deciduous and permanent teeth is already a consensus in the literature and is supported by studies that demonstrate excellent clinical, radiographic and microbiological results. However, the longevity of restorations performed after the SCR, mainly in primary dentition, has generated some doubts and concerns about its performance, deserving clarification. This multicenter study aimed to compare the success rate of adhesive restorations performed on posterior deciduous teeth after total or selective caries removal over 30 months Methods: Children between 4 - 8 years old with at least two active cavitated lesions in deep dentin (inner half of the dentin in the evaluation of the interproximal RX and with at least 1mm of dentin separating the carious lesion of the pulp) and that met the inclusion and exclusion criteria participated in the study. For each child, teeth were randomized and submitted to one of the treatment groups: total caries removal (TCR - control group) or SCR (test group). Children could have more than 2 teeth included. In cases of pulp exposure, data were analyzed and the tooth was excluded from the sample. Four institutions participated in the study (Federal University of Rio Grande do Sul, Peruvian University Cayetano Heredia and International Universidad of Ecuador), resulting in four pediatric dentists who performed the caries removal procedures and subsequent restorations in composite resin. Clinical evaluation was performed at baseline, 6, 12, 18, 24 and 30 months. All procedures were performed under local anesthesia and rubber dam use. Sociodemographic characteristics were collected at the baseline and clinical characteristics as dmft and visible plaque and gingival bleeding index were collected in all follow-up periods. Radiographs were taken only at baseline and restorations were clinically assessed at baseline, 6, 12, 18, 24 and 33 months by a blinded, trained and calibrated operator in each institution. The characteristics of the restorations were recorded according to an adaptation of the FDI criteria. Survival estimates for restoration longevity were evaluated using the Kaplan-Meier method. We also estimated the annual failure rate of the restorations. Cox regression model with shared frailty was performed to assess differences in survival rates of the restoration according to the intervention treatment, institution and clinical and demographic characteristics of the sample. Results: one hundred and six children (51 boys and 55 girls) collaborated with 278 teeth submitted to adhesive restorations (137 after TCR and 141 after SCR). Pulp exposure occurred in eight teeth (2.8%) allocated to TCR, and in four (1.4%) allocated to SCR group. The overall success rate of restorations was 87.1% (85.4% for TCR and 88.7% for SCR) and mean survival time was 30.3 months. The annual failure rate was 7% after 24 months of follow-up. There were no differences in the risk of failure according to the treatment group (HR 0.75;95%CI:0.38-1.46) and institution (USP HR 0.44;95%CI:0.94-2.09; PERU HR 0.92;95%CI:0.26-3.19; ECUADOR HR 1.39;95%CI:0.45-4.28). Analogous observations were found regarding all the clinical and demographic variables. Conclusions: Composite restorations of active deep carious lesions performed in posterior primary teeth show satisfactory survival of 87.1% after 33 months of follow-up, regardless of the technique performed for carious tissue removal.
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Livres sur le sujet "Restoration trials"

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Messmer, Heinz, et Hans-Uwe Otto, dir. Restorative Justice on Trial. Dordrecht : Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-015-8064-9.

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Rights, European Court of Human. A. Affaire Sainte-Marie c. France, arrêt du 16 Décembre 1992. : B. Affaire de Geouffre de la Pradelle c. France, arrêt du 16 Décember 1992 = A. Case of Sainte-Marie v. France, judgment of 16 December 1992. B. Case of de Geouffre de la Pradelle v. France, judgment of 16 December 1992. Strasbourg : Greffe de la Cour, Conseil de l'Europe, 1993.

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Divine restoration : Testimonies of our motherland on trial. [Nigeria : N. Liliwhite-Nwosu], 2002.

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Linton, Suzannah. Putting things into perspective : The realities of accountability in East Timor, Indonesia and Cambodia. Baltimore, MD : University of Maryland School of Law, 2005.

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Whence came they ? : Israel, Britain, and the Restoration. Springville, UT : Cedar Fort, 1993.

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Multidistrict Litigation Restoration Act of 2003 : Report (to accompany H.R. 1768) (including cost estimate of the Congressional Budget Office). [Washington, D.C : U.S. G.P.O., 2004.

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1955-, Messmer Heinz, et Otto Hans-Uwe, dir. Restorative justice on trial : Pitfalls and potentials of victim-offender mediation : international research perspectives. Dordrecht : Kluwer Academic Publishers, 1992.

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Behnke, Leo. The conservation of magic : Whatever you collect, take better care of it ! Las Vegas : Book Group, 2000.

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David, Cohen. Intended to fail : The trials before the ad hoc human rights court in Jakarta. New York, N.Y : International Center for Transitional Justice, 2004.

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Multidistrict Litigation Restoration Act of 2005 : Report together with dissenting views (to accompany H.R. 1038) (including cost estimate of the Congressional Budget Office). [Washington, D.C : U.S. G.P.O., 2005.

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Chapitres de livres sur le sujet "Restoration trials"

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Smith, Hendrik J., Gerhardus Trytsman et Andre A. Nel. « On-farm experimentation for scaling-out conservation agriculture using an innovation systems approach in the north west province, South Africa. » Dans Conservation agriculture in Africa : climate smart agricultural development, 416–30. Wallingford : CABI, 2022. http://dx.doi.org/10.1079/9781789245745.0026.

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Abstract A project under the Farmer Innovation Programme (FIP) that aimed to adapt Conservation Agriculture (CA) among grain farmers in South Africa was implemented in a commercial farming area of the North West Province. The following on-farm, collaborative-managed trials produced key findings concerning: (i) plant population densities (high versus low) under CA; (ii) conventional crop systems versus CA crop systems; (iii) the testing and screening of cover crops; (iv) green fallow systems for soil restoration; and (v) livestock integration. Key results from these trials were that the yield of maize was significantly higher under high-density no-till (NT) systems compared to the normal NT systems. The yield of maize in local conventional systems was lower than the yield in NT systems tested on three farmer-managed trials. The screening trial assisted in testing and learning the suitability and the different attributes of a range of cover crops in that area. Cover crop mixtures used as a green fallow system with livestock showed that CA can facilitate the successful restoration of degraded soil.
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Ayton, Lauren N., et Joseph Rizzo. « Assessing Patient Suitability and Outcome Measures in Vision Restoration Trials ». Dans Artificial Vision, 3–8. Cham : Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-41876-6_1.

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Saxena, Krishna G., Kottapalli S. Rao et Rakesh K. Maikhuri. « Long-Term Tracking of Multiple Benefits of Participatory Forest Restoration in Marginal Cultural Landscapes in Himalaya ». Dans Fostering Transformative Change for Sustainability in the Context of Socio-Ecological Production Landscapes and Seascapes (SEPLS), 61–75. Singapore : Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-6761-6_4.

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AbstractThe literature is abound with references to the potential of indigenous and local knowledge (ILK) for sustainable landscape management, but empirical on-the-ground efforts that demonstrate this potential are still lacking. To identify interventions for improving the effectiveness and efficiency of forest restoration, participatory trials were set out in the Indian Himalaya, where per capita degraded land far exceeds per capita cropped/healthy forest land. Treatments were designed based on pooled indigenous and scientific knowledge taking into account farm-forest-livelihood interactions in cultural landscapes. The multipurpose tree-bamboo-medicinal herb mixed restoration plantation reached a state of economic benefit/cost ratio >1 in the eighth year and recovered 30–50% of flowering plant species and carbon stock in intact forest. The communities maintained but did not expand restoration in the absence of policies addressing their genuine needs and aspirations. Transformative change for sustainable restoration would include (1) nesting restoration in participatory, long-term, adaptive and integrated landscape development programmes, (2) formally involving communities in planning, monitoring, bioprospecting, and financial management, (3) assuring long-term funding but limited to the inputs unaffordable for local people, (4) stimulating the inquisitive minds of local people by enriching ILK and cultural heritage, (5) convincing policymakers to provide the scientific rationale behind policy stands, to support the regular interactions of communities with researchers, traders, and industrialists, to commit to genuine payment for ecosystem services in unambiguous terms at multiple spatial (household, village and village cluster) and temporal (short, medium and long-term) scales, and to support long-term participatory action research for development of “landscape restoration models” in varied socio-ecological scenarios.
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De Boeck, Kris, et Melissa Ashlock. « Introduction to Section I : The Relevance of CF Diagnostic Tools for Measuring Restoration of CFTR Function After Therapeutic Interventions in Human Clinical Trials ». Dans Methods in Molecular Biology, 3–11. Totowa, NJ : Humana Press, 2011. http://dx.doi.org/10.1007/978-1-61779-117-8_1.

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Messmer, Heinz, et Hans-Uwe Otto. « Restorative Justice : Steps on the Way Toward a Good Idea ». Dans Restorative Justice on Trial, 1–12. Dordrecht : Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-015-8064-9_1.

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Pelikan, Christa. « The Austrian Juvenile Justice Act 1988. A New Practice and New Problems ». Dans Restorative Justice on Trial, 163–78. Dordrecht : Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-015-8064-9_10.

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Bonafé-Schmitt, Jean-Pierre. « Penal and Community Mediation : The Case of France ». Dans Restorative Justice on Trial, 179–95. Dordrecht : Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-015-8064-9_11.

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Warner, Sue. « Reparation, Mediation and Scottish Criminal Justice ». Dans Restorative Justice on Trial, 197–210. Dordrecht : Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-015-8064-9_12.

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Hartmann, Arthur. « Victim-Offender Reconciliation — Program and Outcomes ». Dans Restorative Justice on Trial, 211–24. Dordrecht : Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-015-8064-9_13.

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Paliero, Carlo E., et Grazia Mannozzi. « Mediation and Reconciliation Models in Italian Legal Experience ». Dans Restorative Justice on Trial, 225–38. Dordrecht : Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-015-8064-9_14.

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Actes de conférences sur le sujet "Restoration trials"

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Miglietti, W. « Comparison Between EBW and GTAW for TURMO IV C Compressor Blade Repairs ». Dans ASME 1994 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1994. http://dx.doi.org/10.1115/94-gt-050.

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A research study was undertaken to evaluate whether electron beam welding (EBW) or gas tungsten arc welding (GTAW) could be utilised for repairs to the leading edges of the Turmo IV C compressor blades. These blades are manufactured from Ti-6Al-4V. The study entailed performing a series of welding trials. For the GTAW process a matching filler metal to the parent metal was used whereas for the EBW process, the welds were made autogenously. After metallographic examination of the weld microstructure, mechanical property assessments were undertaken, namely tensile and fatigue tests, the latter being a stringent test to evaluate the performance of the welded joint. The results demonstrated that the EB welds had equivalent properties to the parent metal whereas the GTA welds had poorer fatigue properties due to undesirable microstructure that resulted in the weld zone. The results achieved herein showed that the EBW process would be an appropriate technique for the restoration of these compressor blades.
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Miglietti, W., et F. Jacobs. « Feasibility of Extending Current Allowable Weld Repairs for a Compressor Impeller ». Dans ASME 1995 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1995. http://dx.doi.org/10.1115/95-gt-424.

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This research study was undertaken to evaluate whether gas tungsten arc welding (GTAW) could be utilised to extend the limits of an existing repair scheme. The compressor impeller of the GTC 85-71 suffers from such severe sand erosion to the leading edges, that the damage exceeds the manufacturers specification. The impeller is manufactured from Ti-6Al-4V. The study entailed performing a series of welding trials and post-weld heat treatments. After metallographic examination of the weld microstructure, mechanical property assessments (i.e. tensile and fatigue tests) were undertaken. The results demonstrated that the welds after the 550 °C/8 hr post-weld heat treatment had equivalent properties to those of the parent metal. The stress distribution determined by finite element analysis showed the weld to be in an area of low stress. The results achieved herein and the stress analysis showed that the GTAW process is feasible for extending the repair limits for restoration of the leading edges of the compressor impeller.
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Clemmer, John S., W. Andrew Pruett et Robert L. Hester. « Simulating Baroreflex Activation Therapy for the Treatment of Heart Failure with Preserved Ejection Fraction ». Dans 2022 Design of Medical Devices Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/dmd2022-1043.

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Abstract Clinical trials demonstrate baroreflex activation therapy (BAT) reduces LV mass and blood pressure (BP) in hypertensive patients and in patients with hypertensive heart failure with preserved ejection fraction (HFpEF). It is thought that high sympathetic nerve activity (SNA) in the heart plays a role in the disease progression seen in these patients. However, the impact of BAT on hemodynamics, cardiac SNA, and disease progression during HFpEF is unknown. In the present study, we used HumMod, a large physiology model to predict the time-dependent changes of BAT during HFpEF. Our results demonstrate a progressive cardiac hypertrophy and fibrosis during HFpEF. After 6 months of BAT however, left ventricular mass was reduced (-11%), associated with decreased blood pressure, decreased cardiac SNA, and restoration of β1-adrenergic activity. Interestingly, when cardiac SNA suppression was blocked during BAT, the improvement in cardiac mass was attenuated. These simulations indicate that the suppression of cardiac SNA could be the primary determinant of the cardioprotective effects from BAT in this HF population.
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Hibbeln, Joseph. « Omega-3 fats as pivotal elements integrating neural, immune and sympathetic nervous systems in aggression, depression and consciousness ». Dans 2022 AOCS Annual Meeting & Expo. American Oil Chemists' Society (AOCS), 2022. http://dx.doi.org/10.21748/ksaz2558.

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Consciousness emerges from the harmonics of neronal networks in a manner analogous to music emerging from symphony orchestras.  Neurons integrate electrochemical signals as long axons fire in pulsing rhythms like instrument strings. Many brain regions communicate in harmonies or dissonance, like orchestra sections. Critically, both neurons and musical instruments depend on their physical composition to stay in tune. For neurons, essential fatty acid compositions determine membrane biophysics of synapses, axons and immune responses, thus dietary fats can either optimize or degrade neuronal harmonics and thus emotional experiences. New experiences cannot be learned without the growth of new synaptic connections and rhythms encoded by Hebbian conditioning.  Inadequate seafood consumption, the primary source of omega-3 fats, is associated with 30 and 50-fold increased risks for major depression and homicide deaths in cross- national epidemiology. Multiple randomized controlled trials report large clinical effects of omega-3 fats in reducing aggression and depression in meta-analyses. Harmful aggressive and depressive behaviors in part result from excessive immunological, stress axis and sympathetic nervous systems responses to provocations. Omega-3 fats downregulate, or detune, these excessive immune and sympathetic nervous system responses to stresses, also contributing to cardiovascular disease protection. Modern diets have excessive omega-6 fats. Restoration of neurons, immune and neuroendocrine systems with omega-3 fats is analogous to restoring musical instruments to play beautiful and healthy emotional music once again. This presentation will include experiences reducing aggression and depression in clinical practice which is the critical test to see if epidemiological, mechanistic and randomized control trial data can actually be translated into practical real-world applications.
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de Carvalho Teixeira, Karen, Manoela Motta Pontes, Maria Luiza Lopes de Nogueira Alberto, Thayane dos Anjos Rodrigues et Luciano Matos Chicayban. « The importance of physiotherapy in the puerperium ». Dans 7th International Congress on Scientific Knowledge. Biológicas & Saúde, 2021. http://dx.doi.org/10.25242/8868113820212397.

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The gestational period promotes changes in the woman's body, so that the baby can develop in a healthy way in the uterus. These transformations can interfere in a woman's daily life. Physiotherapy promotes re-education of the abdominal muscles, analgesia in the perineum region, restoration of gastrointestinal function, in addition to helping them with psychological changes. To verify the benefits of physiotherapy in the puerperium. A non-systematic review of the literature was carried out, through randomized clinical trials, published between 1999 and 2018. The search involved the databases PubMed, MEDLINE, SciELO, LILACS and PEDro. The following keywords were used: postpartum physiotherapy. 6 RCTs were included. There was a significant decrease in pain in the treatment group in four studies, increase in strength of the pelvic floor muscles (PFM) and decrease in urinary incontinence in two studies, but 3 postpartum women presented voiding symptoms; in another study, there was a decrease in the score related to anal incontinence; in another study, immediate physiotherapy after delivery reduced abdominal diastasis. Postpartum physiotherapy, through an exercise program, contributes to pain reduction, increase in pelvic floor strength, decrease in urinary incontinence, anal incontinence and abdominal diastasis.
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Saleh, Bahaa E. A. « Image Synthesis ». Dans Signal Recovery and Synthesis. Washington, D.C. : Optica Publishing Group, 1986. http://dx.doi.org/10.1364/srs.1986.wb1.

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An established practice in microphotography is the introduction of deliberate distortions in the artwork in order to compensate for known distortions in the optical system. The corrections are usually based on experience gained by a process of trial and error. Image synthesis, as defined in this presentation, provides a theoretical foundation for solving this problem. The problem can be regarded as the counterpart to the usual signal/image recovery (reconstruction, or restoration. It may be called signal/image "discovery", “construction", "synthesis", or "design". The problems of image restoration and image synthesis are very similar. In both problems the imaging system is known; the output image is known, and the input is to be found. But the motive is quite different-- discovery versus recovery. One subtle difference has to do with the existence of a solution. In an image restoration problem, the measured output results from an actual, albeit unknown, input. In an image synthesis problem, on the other hand, it is possible that no input image is capable of producing the desired output image. Therefore, in image synthesis, the problem of utmost concern is that of existence of a solution. In an image restoration problem, one is usually concerned with uniqueness and recoverability.
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Zhu, Guijing, Long Ma, Xin Fan et Risheng Liu. « Hierarchical Bilevel Learning with Architecture and Loss Search for Hadamard-based Image Restoration ». Dans Thirty-First International Joint Conference on Artificial Intelligence {IJCAI-22}. California : International Joint Conferences on Artificial Intelligence Organization, 2022. http://dx.doi.org/10.24963/ijcai.2022/245.

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In the past few decades, Hadamard-based image restoration problems (e.g., low-light image enhancement) attract wide concerns in multiple areas related to artificial intelligence. However, existing works mostly focus on heuristically defining architecture and loss by the engineering experiences that came from extensive practices. This way brings about expensive verification costs for seeking out the optimal solution. To this end, we develop a novel hierarchical bilevel learning scheme to discover the architecture and loss simultaneously for different Hadamard-based image restoration tasks. More concretely, we first establish a new Hadamard-inspired neural unit to aggregate domain knowledge into the network design. Then we model a triple-level optimization that consists of the architecture, loss and parameters optimizations to deliver a macro perspective for network learning. Then we introduce a new hierarchical bilevel learning scheme for solving the built triple-level model to progressively generate the desired architecture and loss. We also define an architecture search space consisting of a series of simple operations and an image quality-oriented loss search space. Extensive experiments on three Hadamard-based image restoration tasks (including low-light image enhancement, single image haze removal and underwater image enhancement) fully verify our superiority against state-of-the-art methods.
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Cheng, B. T., M. A. Fiddy, J. D. Newman, R. C. Van Vranken et D. L. Clark. « Image restoration from low light level degraded data ». Dans Quantum-Limited Imaging and Image Processing. Washington, D.C. : Optica Publishing Group, 1989. http://dx.doi.org/10.1364/qlip.1989.tuc4.

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We present some preliminary work on the reconstruction of low contrast images for remote sensing type applications. We assume the data to be a set of noise degraded images, and report on the application of reconstruction techniques that both estimate the support of the image use the triple correlation method to obtain the image itself. These reconstruction methods are applied to simulated data in the first instance.
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Calderucio Duque Estrada, Gustavo, Jason Sali, Patrizio Piras, Norbert Jallais, Uchechukwu Amaechi, John Bedford-Fubara et Paola Maria Pedroni. « Mangrove Restoration and Conservation as a Carbon Offset Option : A Case Study in the Niger Delta Region ». Dans Abu Dhabi International Petroleum Exhibition & Conference. SPE, 2021. http://dx.doi.org/10.2118/207725-ms.

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Abstract Despite their limited global distribution, mangroves have gained attention as a potential carbon offset option due to their high carbon storage capacity and diverse social and environmental co-benefits. Carbon stock in mangroves (global average=2,790tCO2eq/ha) is about four times higher than in terrestrial forests and contributes to almost 10% (37GtCO2eq) of global terrestrial carbon pool. Mangrove carbon sequestration averages 6.9tCO2eq/ha/yr but may reach more than 20tCO2eq/ha/yr. Literature suggests that over 812,000ha of mangrove areas, spread over 106 countries/territories, show potential for restoration. Furthermore, globally, mangroves have been lost at a rate of 1-2%/yr, which may account for an annual emission of about 0.09-0.45 GtCO2eq/yr that can be potentially avoided through conservation actions. Mangroves within the Niger Delta Region (NDR) cover 800,000ha (6% of world extent), and contain an estimated carbon stock of 2.2GtCO2eq. In 2017, Eni's subsidiary Nigerian Agip Oil Company (NAOC) launched a voluntary initiative to restore mangroves to promote social and biodiversity benefits while also contributing to offsetting its GHG emissions. A 30-ha pilot restoration area was identified in Okoroma, Bayelsa, where mangroves had failed to naturally recover from oil spills caused by third party interference in 2014. Site assessments were carried out in 2018 and indicated residual soil contamination (hydrocarbons/metals) and low fertility, a typical characteristic of soils in the NDR. A restoration trial (n=90 seedlings) using nursery-reared seedlings resulted in 100% survivorship and high growth rates, confirming the feasibility of active restoration across the entire site. Although soil contamination was lower than when the spills occurred, we concluded that the combination of residual contamination, low soil fertility and site topography had restricted the natural regeneration process. This in turn risked further soil degradation and ultimately erosion and permanent habitat loss. To prevent this from happening, a long-term restoration program based on the transplantation of fertilized seedlings in partnership with local communities is proposed. In addition to the benefits to the local communities and the environmental restoration, this project is expected to allow for the sequestration of 2,970tCO2eq in 20 years and avoid the emission of an estimated 60,000tCO2eq from soil carbon, numbers that could be scaled up in the future to a much larger area. The results of this case study further confirm the possibility of using mangroves as a Natural Climate Solution to offset GHG emissions from O&G operations.
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Bertacchi, Gianna, Francisco Juan-Vidal et Luca Cipriani. « HBIM FOR RESTORATION WORK AND MONITORING OF COMPLEX ARCHITECTURES : THE FAMILY CHAPEL OF RAMÓN PERES Y ROVIRA IN CASTELLÓN DE LA PLANA (SPAIN) ». Dans ARQUEOLÓGICA 2.0 - 9th International Congress & 3rd GEORES - GEOmatics and pREServation. Editorial Universitat Politécnica de Valéncia : Editorial Universitat Politécnica de Valéncia, 2021. http://dx.doi.org/10.4995/arqueologica9.2021.12059.

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The paper analyses the procedure to create a 3D model of a neogothic family chapel situated in Castellón de la Plana (Spain). The characteristics of the case study make it an emblematic case of Building Information Modeling (BIM) applied to Cultural Heritage (Historic BIM). The paper explores the workflow used to create the model and how the difficulties encountered have been addressed. The key motivations for this research project are: (i) local authority needs and objectives (restoration works for the conservation of architecture; necessity to monitor the asset after restoration); (ii) the intrinsic peculiarities of the small building (vast diversity of materials, richness and diversity of decorative elements); (iii) the creation of a pilot project for future applications in similar architectures. The chosen workflow tries to tackle the principal issues shared by the academic world with respect to 3D and HBIM models, e.g. the difficulty in reconstructing complex architectures without time-consuming processes, the reliability and high detail in the rendering of colours and textures, the insertion of detailed information for each element. The experiments carried out have made this case study interesting because of its complexity despite its reduced dimensions.
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Rapports d'organisations sur le sujet "Restoration trials"

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Berger, Matthew. Sharp-tailed Grouse Restoration ; Colville Tribes Restore Habitat for Sharp-tailed Grouse, Annual Report 2001-2002. Office of Scientific and Technical Information (OSTI), janvier 2003. http://dx.doi.org/10.2172/963046.

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Whitney, Richard. Sharp-tailed Grouse Restoration ; Colville Tribes Restore Habitat for Sharp-tailed Grouse, Annual Report 2002-2003. Office of Scientific and Technical Information (OSTI), janvier 2004. http://dx.doi.org/10.2172/963066.

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Cajas, María Augusta, Marcela Cabrera, Jaime Astudillo, Yulissa Abad et Daniela Astudillo. Accuracy in marginal and/or internal adaptation of full-coverage fixed prostheses made with digital versus conventional impressions : an overview of systematic reviews and meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, octobre 2021. http://dx.doi.org/10.37766/inplasy2021.10.0024.

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Review question / Objective: Is the accuracy (marginal adaptation and / or internal adaptation) of fixed full coverage prostheses made with digital impressions better than conventional impressions? Eligibility criteria: Inclusion criteria• Systematic reviews and / or meta-analyzes that evaluated the precision (marginal adaptation and / or internal adaptation) of full coverage fixed prostheses on natural teeth in clinical studies and on tooth replicas in in vitro studies.• Systematic reviews and / or meta-analyzes comparing digital impressions with an intraoral scanner versus conventional impressions taken with any impression material.• Systematic reviews and / or meta-analyzes of randomized clinical trials (RCTs), prospective comparative and in vitro and non-randomized clinical trials.Exclusion criteria:• Systematic literature reviews, case reports, pilot studies• Studies evaluating the seating of crowns on implants and partial restorations• Studies with no response from the author to the requested information query.
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Robertson, Shawn W. The Confederated Tribes of the Warm Springs Indian Reservation of Oregon John Day Basin Office : FY 1999 Watershed Restoration Projects : Annual Report 1999. Office of Scientific and Technical Information (OSTI), mars 2001. http://dx.doi.org/10.2172/786225.

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The Confederated Tribes of the Warm Springs Indian Reservation of Oregon John Day Basin Office : Watershed Restoration Projects : Annual Report, 1998. Office of Scientific and Technical Information (OSTI), octobre 1999. http://dx.doi.org/10.2172/786222.

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The Confederated Tribes of the Warm Springs Indian Reservation of Oregon John Day Basin Office : Watershed Restoration Projects : Annual Report, 2000. Office of Scientific and Technical Information (OSTI), mars 2001. http://dx.doi.org/10.2172/809038.

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The Confederated Tribes of the Warm Springs Indian Reservation of Oregon John Day Basin Office : Watershed Restoration Projects : Annual Report, 2001. Office of Scientific and Technical Information (OSTI), décembre 2002. http://dx.doi.org/10.2172/809041.

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The Confederated Tribes of the Warm Springs Indian Reservation of Oregon John Day Basin Office : Watershed Restoration Projects : 2002 Annual Report. Office of Scientific and Technical Information (OSTI), juin 2003. http://dx.doi.org/10.2172/928365.

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The Confederated Tribes of the Warm Springs Indian Reservation of Oregon John Day Basin Office : Watershed Restoration Projects : 2003 Annual Report. Office of Scientific and Technical Information (OSTI), février 2004. http://dx.doi.org/10.2172/928366.

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