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| Registros recuperados: 38 | |
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| Ribeiro,Wellington S; Carneiro,Clebson dos S; França,Christiane de Fátima M; Pinto,Cleide Maria F; Lima,Paula Cristina C; Finger,Fernando L. |
| ABSTRACT 1-MCP has been effectively used as an antagonist of ethylene deleterious actions in flowers and ornamental plants. The objective was to evaluate the efficiency of 1-MCP (0.0, 0.5, 1.0 and 1.5 g m-3) in maintaining post-production quality of exogenous ethylene sensitive ornamental pepper. Two commercial varieties were evaluated: Pimenta Colorida and Pimentão Ornamental, both Capsicum annuum. The pre-treatment with 1-MCP, regardless of the applied concentration, was effective in blocking the ethylene action reducing the leaves abscission, flowers and fruits of both genotypes by 100%. Plants pretreated with 1-MCP had postproduction life increased by eight and nine days for Pimenta Colorida and Pimentão Ornamental, respectively. The 1-MCP application... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Capsicum annuum; Ornamental plants; Sensitivity; Transport. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000400510 |
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| Sultan, Nabil; Cochonat, Pierre; Canals, M; Cattaneo, Antonio; Dennielou, Bernard; Haflidason, H; Laberg, J; Long, D; Mienert, J; Trincardi, F; Urgeles, R; Vorren, T; Wilson, C. |
| The Costa target areas exhibit the variability of slope instabilities needed to improve our understanding of sediment physical and mechanical properties in areas prone to sliding. That is why in this project, we have analysed the different slope failures events from different parts of the Costa target areas, which reflect diverse triggering mechanisms. The aim of the first part of this study was to identify the geotechnical response of the sediment to different external mechanisms (earthquake, rapid sedimentation and gas hydrate melting). We have focused on the relation between external mechanisms and the consequence change in the in-situ stress state and the physical, mechanical, and elastic properties of the sediment. In the second part of the paper, the... |
| Tipo: Text |
Palavras-chave: Slope instability; Sensitivity; Sedimentation; Hydrate; Earthquake. |
| Ano: 2004 |
URL: http://archimer.ifremer.fr/doc/2004/publication-700.pdf |
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| Dubois, Nolwenn; Barthomeuf, Chantal; Berge, Jean-pascal. |
| It is essential to have simple rapid methods for the determination of fatty acid structures. Traditionally, fatty acids are analysed by gas chromatography using their methyl ester derivatives (FAME). However, their corresponding mass spectra exhibit molecular ions but are usually devoid of ions indicative of structural features and, notably, the position of double bounds on the aliphatic chains [1]. In the most useful approach to structure determination, the carboxyl group is derivatised with a reagent containing a nitrogen atom. Recently, a convenient method for preparing picolinyl esters from intact lipids has been published [2]. However, some problems occurred in our laboratory when this method was used, leading to some modifications and optimisation.... |
| Tipo: Text |
Palavras-chave: Sensitivity; Sterol esters; Fatty acid methyl esters; Gas chromatography; Mass spectrometry; Picolinyl esters. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/publication-2125.pdf |
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| Gawler, A; Beecher, J; Brandao, J; Carroll, N; Falcao, L; Gourmelon, Michele; Masterson, B; Nunes, B; Porter, J; Rince, A; Rodrigues, R; Thorp, M; Walters, J; Meijer, W. |
| The recent implementation of the Revised Bathing Water Directive in the European Union has highlighted the need for development of effective methods to differentiate between sources of faecal contamination. It had previously been shown that amplification of 16S rRNA genes of host-specific Bacteriodales species using the HF183F and CF128F primers could be used as markers for human and bovine faecal contamination in the United States. This paper determined the sensitivity and specificity of these markers in four Atlantic Rim countries (France, Ireland, Portugal and the United Kingdom) to evaluate their usefulness in determining the origin of faecal contamination. It was shown that the HF183F marker displayed high sensitivity (80-100%) and specificity... |
| Tipo: Text |
Palavras-chave: Sensitivity; Specificity; PCR; Microbial source tracking; Bacteriodales. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/publication-4957.pdf |
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| Garcia-martinez, Gonzalo; Alonso Bustabad, Enrique; Perrot, Hubert; Gabrielli, Claude; Bucur, Bogdan; Lazerges, Mathieu; Rose, Daniel; Rodriguez-pardo, Loreto; Farina, Jose; Compere, Chantal; Arnau Vives, Antonio. |
| This work deals with the design of a high sensitivity DNA sequence detector using a 50 MHz quartz crystal microbalance (QCM) electronic oscillator circuit. The oscillator circuitry is based on Miller topology, which is able to work in damping media. Calibration and experimental study of frequency noise are carried out, finding that the designed sensor has a resolution of 7.1 ng/cm(2) in dynamic conditions (with circulation of liquid). Then the oscillator is proved as DNA biosensor. Results show that the system is able to detect the presence of complementary target DNAs in a solution with high selectivity and sensitivity. DNA target concentrations higher of 50 ng/mL can be detected. |
| Tipo: Text |
Palavras-chave: DNA sequence detection; Quartz crystal microbalance; Electronic oscillator; Sensitivity; Frequency noise; Resolution. |
| Ano: 2011 |
URL: http://archimer.ifremer.fr/doc/00044/15487/12886.pdf |
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| Gardner, Ian A.; Whittington, Richard J.; Caraguel, Charles G. B.; Hick, Paul; Moody, Nicholas J. G.; Corbeil, Serge; Garver, Kyle A.; Warg, Janet V.; Arzul, Isabelle; Purcell, Maureen K.; Crane, Mark St J.; Waltzek, Thomas B.; Olesen, Niels J.; Gallardo Lagno, Alicia. |
| Complete and transparent reporting of key elements of diagnostic accuracy studies for infectious diseases in cultured and wild aquatic animals benefits end-users of these tests, enabling the rational design of surveillance programs, the assessment of test results from clinical cases and comparisons of diagnostic test performance. Based on deficiencies in the Standards for Reporting of Diagnostic Accuracy (STARD) guidelines identified in a prior finfish study (Gardner et al. 2014), we adapted the Standards for Reporting of Animal Diagnostic Accuracy Studies—paratuberculosis (STRADAS-paraTB) checklist of 25 reporting items to increase their relevance to finfish, amphibians, molluscs, and crustaceans and provided examples and explanations for each item. The... |
| Tipo: Text |
Palavras-chave: Reporting standards; Sensitivity; Specificity; Finfish; Amphibians; Molluscs; Crustaceans; STRADAS-paraTB; Diagnostic validation. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00334/44505/44191.pdf |
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| Mahevas, Stephanie. |
| Fisheries are defined by a set of fishermen and of marine populations impacting each other in a spatial-limited marine ecosystem. Within the over-exploitation context and according to ratified sustainable management objectives, my research has been focused on the development and a caution use of a mechanistic model describing fisheries dynamics. This model allows for integrating existing knowledge of fisheries. It aims at improving the understanding of fisheries functioning and at investigating the impact of fishing regulations on fisheries dynamics. This modelling exercise has supported many methodological developments for its parametrisation and its use in uncertainty context. Concerned with promoting a correct use of a complex model (that ambiguity link... |
| Tipo: Text |
Palavras-chave: Statistics; Spatial; Management; Optimal complexity; Sensitivity; ISIS Fish; Statistiques; Spatial; Gestion; Complexité optimale; Sensibilité; ISIS Fish. |
| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/2009/these-7302.pdf |
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| NOSRATTI,I.; MAHDAVI-RAD,S.; HEIDARI,H.; SAEIDI,M.. |
| ABSTRACT Response of pumpkin species including Cucurbita pepo convar. Pepo, Cucurbita moschata Duch, Cucurbita pepo, Cucurbita maxima, and Lagenaria vulgaris to bentazon, trifluralin, metribuzin, and oxyfluorfen was evaluated in Outdoor pot experiments in 2014 and 2015. Different postemergence doses (bentazon and oxyfluorfen) and preplant incorporated (metribuzin and trifluralin) herbicides were evaluted on pumpkin species at various growth stages. Results showed that the sensitivity of pumpkins species to applied herbicide varied greatly among tested species. On overall, dry weights of Cucurbita spp. were reduced by 12.50%, 48.60%, 23%, and 73.13% when pumpkin was treated with trifluralin, metribuzin, bentazon and oxyfluorfen, respectively. Pumpkin crops... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broadleaf weeds; Crop; Dominant weeds; Sensitivity. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582017000100264 |
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| Harry, Edric. |
| The research undertaken was four-fold. First, to investigate whether government policy provides protection and by extension, incentives for the local table egg farmers to remain in production. To do so, EPC's for all commercial farms in the industry were estimated to arrive at a weighted or industry EPC. The study also investigated whether the local tables egg industry had a comparative advantage or was efficient in the production of table egg. The Domestic Resource Cost (DRC) coefficient was used as a proxy of efficiency and comparative advantage. DRC's were calculated for the twenty-three farms. Having established that the industry was competitive, a sensitivity analysis was conducted to determine the extent to which feed costs, the major... |
| Tipo: Journal Article |
Palavras-chave: Regression model; Table egg industry; Domestic Resource Cost (DRC); Sensitivity; Agricultural and Food Policy. |
| Ano: 2007 |
URL: http://purl.umn.edu/36799 |
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| Janes, Holly; Longton, Gary M.; Pepe, Margaret S.. |
| Classification accuracy is the ability of a marker or diagnostic test to discriminate between two groups of individuals, cases and controls, and is commonly summarized by using the receiver operating characteristic (ROC) curve. In studies of classification accuracy, there are often covariates that should be incorporated into the ROC analysis. We describe three ways of using covariate information. For factors that affect marker observations among controls, we present a method for covariate adjustment. For factors that affect discrimination (i.e., the ROC curve), we describe methods for modeling the ROC curve as a function of covariates. Finally, for factors that contribute to discrimination, we propose combining the marker and covariate information, and we... |
| Tipo: Article |
Palavras-chave: Roccurve; Comproc; Rocreg; Receiver operating characteristic analysis; ROC; Covariates; Sensitivity; Specificity; Research Methods/ Statistical Methods. |
| Ano: 2009 |
URL: http://purl.umn.edu/122695 |
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| Registros recuperados: 38 | |
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