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	Provedor de dados BJM (1) Autor Calado,Nicácia Barbosa (1) Cardoso,Fernando José Ramos (1) Diniz,Mariana Guimarães (1) Fernandes,Ana Cristina Santos (1) Ferreira,Maria Ângela Fernandes (1) Milan,Eveline Pipolo (1) Sousa Júnior,Francisco Canindé de (1) Zaror,Luiz Conrado (1) Mais... Palavra-chave Cutaneous mycoses (1) Dermatophytes (1) Fungal infections (1) Superficial mycoses (1) Yeasts (1) Tipo do documento Info:eu-repo/semantics/article (1) Ano 2011 (1) País Brazil (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 122 Primeira ... 1 2 3 4 5 6 7 ... Última Daily rainfall variability at a local scale (1,000 ha), in Piracicaba, SP, Brazil, and its implications on soil water recharge Scientia Agricola Reichardt,K.; Angelocci,L.R.; Bacchi,O.O.S.; Pilotto,J.E.. Daily rainfall variability at a local scale (1,000 ha) was studied at Piracicaba, SP, Brazil, for the period of one year (1993-1994), in order to better understand the process of soil water recharge. Coefficients of variation of daily data for ten observation points varied from 2.2 to 169.3% and the variability was independent of rain type, i.e. whether convective, frontal or of other origin. Data were not related to separation distances between observation points and it is concluded that one observation point does not represent areas as far as 1,000 to 2,500 m apart, for daily, monthly or even quarterly averages. Yearly totals for the ten observation points presented a coefficient of variation as low as 3.06%, indicating that all points can replace each... Tipo: Info:eu-repo/semantics/article Palavras-chave: Variability; Rainfall; Soil water recharge. Ano: 1995 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161995000100008 Decomposition of Variability in Farm Household Assets and Debt AgEcon Mishra, Ashok K.; El-Osta, Hisham S.. Farm families often hold large quantities of wealth and, like any other family, assess their financial progress by reviewing their net worth (or wealth) position periodically. Wealth has an impact on many decisions such as production, retirement, and succession of the farm. Households, in general, seek stability growth in wealth and, ideally, income as well. In the case of wealth, farm households will be better equipped to handle variability once the contributing sources are identified. This study measures how much of the variability in farm household assets and debt is attributed to the variability in farm and nonfarm sources of assets and farm and nonfarm sources of debt. Using a normalized variance decomposition approach and data from the Agricultural... Tipo: Journal Article Palavras-chave: Assets; Debt; Farm households; Variability; Variance decomposition; Farm Management; Financial Economics. Ano: 2005 URL: http://purl.umn.edu/59682 Definitions of Biodiversity and Measures of Its Value AgEcon Simpson, R. David. The destruction of natural habitats has prompted concerns about the loss of biological diversity. Regrettably, however, there is no consensus among either biologists or economists on the most meaningful measures of biodiversity. Fundamentally different definitions are useful in asking fundamentally different questions. Considerable attention has been given to the value of diversity in search models. A measure of "aggregate variability" is appropriate to such models. Values derived from search models tend to be well behaved; they exhibit diminishing returns in diversity. In contrast, a definition of diversity as "relative abundance" is more appropriate to more complex objective functions. Values derived in these models are not necessarily well behaved. The... Tipo: Working or Discussion Paper Palavras-chave: Biological diversity; Biodiversity; Diversity index; Abundance; Search; Variability; Consistency; Contingent valuation; Diminishing returns; Increasing returns; Environmental Economics and Policy; D43; D83; Q20. Ano: 2002 URL: http://purl.umn.edu/10551 Detecting Regional Modes of Variability in Observation-Based Surface Ocean pCO(2) ArchiMer Landschuetzer, Peter; Ilyina, Tatiana; Lovenduski, Nicole S.. We use a neural network-based estimate of the sea surface partial pressure of CO2 (pCO(2)) derived from measurements assembled within the Surface Ocean CO2 Atlas to investigate the dominant modes of pCO(2) variability from 1982 through 2015. Our analysis shows that detrended and deseasonalized sea surface pCO(2) varies substantially by region and the respective frequencies match those from the major modes of climate variability (Atlantic Multidecadal Oscillation, Pacific Decadal Oscillation, multivariate ENSO index, Southern Annular Mode), suggesting a climate modulated air-sea exchange of CO2. We find that most of the regional pCO(2) variability is driven by changes in the ocean circulation and/or changes in biology, whereas the North Atlantic variability... Tipo: Text Palavras-chave: Ocean; CO2; Variability; Carbon; Climate; Observations. Ano: 2019 URL: https://archimer.ifremer.fr/doc/00675/78733/80972.pdf Déterminisme du recrutement. Séminaire de Nantes, 2-4 juillet 1984 ArchiMer Ifremer. The causality of recruitment is of paramount importance for the progress of the control of marine living resources, but its study remains technically complax.The aim of the Nantes panel was to evaluate the state of advancement of three running programs on exploited species (sole, scallops and oysters), and to set out the basis of a wider national program of interest for both basic and targeted research. Tipo: Text Palavras-chave: Recrutement; Variabilité; Déterminisme; Sole; Coquille St Jacques; Huître; Recruitment; Variability; Causality; Sole; Scallop; Oyster. Ano: 1985 URL: http://archimer.ifremer.fr/doc/00136/24713/22766.pdf Différenciation génétique de quelques populations Tunisiennes d'Artemia leach, 1819 (crustacé, branchiopode) OceanDocs Ghlala., A.; Charfi-Cheikhrouha., F.. L’analyse du polymorphisme isoenzymatique de 5 populations d’Artemia de Tunisie a été entreprise afin d’évaluer les ressources génétiques de cette espèce et d’estimer la variabilité génétique intra et interpopulationnelle. Cette analyse a été effectuée sur la base de 5 systèmes enzymatiques et 11 loci dont 7 sont polymorphes : PEP3, PEP4, IDH1, IDH2, MDH1, MDH2 et APH. Parmi ces loci, l’IDH2 et la MDH1 peuvent être considérés comme des loci diagnostiques. Les paramètres de diversité génétique estimés pour l’hétérozygotie observée, le taux de polymorphisme et le nombre moyen d’allèles par locus sont de 0.051 à 0.364, de 36.4% à 45.5% et de 1.3 à 1.7 respectivement. Les valeurs des distances génétiques de Nei (1978), calculées à partir des fréquences... Tipo: Journal Contribution Palavras-chave: Alleles; Biopolymorphism; Biopolymorphism; Population genetics; Statistical tables; Variability; Alleles; Population genetics; Http://aims.fao.org/aos/agrovoc/c_8724; Http://aims.fao.org/aos/agrovoc/c_34326. Ano: 2008 URL: http://hdl.handle.net/1834/4233 Dinámica del océano y mares de la plataforma suroccidental de Cuba: variabilidad interanual OceanDocs Piñeiro Soto, R.; Cobas Gómez, S.. Se presenta un análisis sobre la variabilidad anual en la dinámica oceanográfica del Golfo de Batabanó y la región oceánica adyacente. Son analizadas series anuales de temperatura superficial promedio del mar (TSM), en el período entre 1950 y 2003, de transporte Ekman (TE) entre 1967 y 2008, y del nivel medio mensual del mar (NMM) entre 1972 y 2003. La TSM oceánica fue de 28,02 °C y de 27,64 °C para la plataforma. Las máximas anomalías positivas en la zona oceánica ocurren a finales de los años 1950, inicios del 1960 y entre finales de la década de 1990 y comienzos del 2000. En la plataforma las máximas anomalías positivas ocurren entre 1997 y 1998, y el período 2002-2003. El TE anual presentó una entrada de agua a la plataforma con máximos relacionados... Tipo: Journal Contribution Palavras-chave: Variability; Mean sea level. Ano: 2010 URL: http://hdl.handle.net/1834/4102 Dinophysis acuminate (dinophyceae), une espèce à géométrie variable sur les côtes françaises ArchiMer Lassus, Patrick; Marcaillou-le Baut, Claire. Tipo: Text Palavras-chave: Morphologie; Variabilité; Ultrastructure; Croissance; France; Dinophysis acuminata; Europe; Milieu marin; Zone côtière; Phytoplancton; Pyrrophycophyta; Algae; Thallophyta; Morphology; Variability; Ultrastructure; Growth; France; Europe; Marine environment; Coastal zone; Phytoplankton; Pyrrophycophyta; Algae; Thallophyta. Ano: 1995 URL: http://archimer.ifremer.fr/doc/00133/24468/22484.pdf Distinct genetic structure in populations of Chrysoperla externa (Hagen) (Neuroptera, Chrysopidae) shown by genetic markers ISSR and COI gene Rev. Bras. entomol. Barbosa,Nara C. C. P.; Freitas,Sérgio de; Morales,Adriana C.. Distinct genetic structure in populations of Chrysoperla externa (Hagen) (Neuroptera, Chrysopidae) shown by genetic markers ISSR and COI gene. Green lacewings are generalist predators, and the species Chrysoperla externa presents a great potential for use in biological control of agricultural pests due to its high predation and reproduction capacities, as well as its easy mass rearing in the laboratory. The adaptive success of a species is related to genetic variability, so that population genetic studies are extremely important in order to maximize success of the biological control. Thus, the present study used nuclear (Inter Simple Sequence Repeat - ISSR) and mitochondrial (Cytochrome Oxidase I - COI) molecular markers to estimate the genetic variability... Tipo: Info:eu-repo/semantics/article Palavras-chave: Genetic distance; Green lacewings; Insecta; Population structure; Variability. Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262014000200012 Diversité génétique chez les huîtres creuses du genre Crassostrea : quelles ressources pour quelle amélioration des productions de C; gigas? ArchiMer Boudry, Pierre. Despite the economic importance of oyster farming, knowledge about genetic resources of these species is still limited. The objectives of my research were to provide further information about (1) taxomomy, phylogeny and phylogeography of Crassostrea oysters, (2) to compare C. gigas and C. angulata strains of various geographic origins and (3) to study phenotypic and genetic variation for traits of aquacultural interest in C. gigas. Studies based on DNA polymorphism and chromosomes allowed to improve or correct identification, geographic range and phylogeographic relationships among several species. The comparison of various strains of C. gigas and C. angulata, both in laboratory and field conditions, revealed significant differences among taxa and the... Tipo: Text Palavras-chave: Crassostrea gigas; Cupped oysters; Genetic improvement by selection; Variability; Strains testing; Phylogeny; Genetic resources; Crassostrea gigas; Huîtres creuses; Amélioration par la sélection; Variabilité; Testage de souches; Phylogénie; Ressources génétiques. Ano: 2003 URL: http://archimer.ifremer.fr/doc/2003/these-3354.pdf Do Antibiotics Reduce Production Risk for U.S. Pork Producers? AgEcon Liu, Xuanli; Miller, Gay Y.; McNamara, Paul E.. We combine econometric and financial analyses of the NAHMS 2000 Swine Survey data to examine whether evidence exists for reducing risk by using antibiotics for growth promotion (AGP) in the U.S. swine industry. A stochastic dominance analysis of alternative lengths of time (days) of AGP application reveals that AGP used in the range of 65—75 days is preferred by risk-averse producers. Risk is reduced and profits are increased from use of AGP. The combined impacts of increased average daily gain and decreased variability in pig live weight increase producer profits by $2.99 per pig marketed. Tipo: Journal Article Palavras-chave: Antibiotics; Growth promotion; Pigs; Risk; Stochastic dominance; Variability; D21; D61; D81; Q12; R32. Ano: 2005 URL: http://purl.umn.edu/42785 Early selection of elite plants in Asparagus Bragantia COINTRY,ENRIQUE LUIS; LÓPEZ ANIDO,FERNANDO SEBASTIÁN; GATTI,ILEANA; CRAVERO,VANINA PAMELA; FIRPO,INÉS TERESA; GARCÍA,STELLA MARIS. In order to establish an efficient selection criterion the variability in three asparagus populations was evaluated defining the most important yield components and analysing its evolution along three growing seasons. The yield components, coefficient of variation (CV) and the proportion of plants contributing to 80% of the total yield were estimated. The elite plants were selected by mean of total yield and clusters techniques. Multiple regression showed that spear number (SN) and spear weight (SW) were the most important yield components. In every population, total yield (TY) and SN showed the highest values of CV, independently of sex. 69% of the plants contributed to the 80% of the total yield in the first year while in the second and third year the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Asparagus; Variability; Elite plants; Selection; Plant breeding. Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052000000100005 Effects of Site-Specific Management on the Application of Agricultural Inputs AgEcon Hennessy, David A.; Babcock, Bruce A.; Fiez, Timothy E.. Site-specific management of inputs in agricultural production is receiving increasing attention because of new technologies and concerns about excessive input use. This paper provides a microeconomic analysis of its implications. It shows that profit decreases with an increase in the variability of input requirements, but that the input and production effects can be quite complicated. The effects of moving from uncertainty about input requirements to variable requirements are also identified. An empirical study of nitrogen fertilization suggests that sitespecific management may reduce input use substantially, but the production and profitability impacts may not be large. Tipo: Working or Discussion Paper Palavras-chave: Negative externality; Site-specific management; Uncertainty; Variability; Crop Production/Industries. Ano: 1996 URL: http://purl.umn.edu/18521 Environmental Design and Analysis in Marine Environmental Sampling OceanDocs Underwood, A.J.. The IOC-IMO-UNEP/GIPME Groups of Experts on Effects of Pollution (GEEP) has been working for a number of years on promoting new ways of understanding how pollutants affect marine biological systems. A major initial focus of GEEP was on calibration workshops where different methods were tested against one another. The Oslo (1986), Bermuda (1988) and Bremerhaven (1992) workshop publications are widely regarded as benchmarks demonstrating that biological effects methods are reliable tools for measurement of the effects of pollutants discharged to the marine environment. IOC through GEEP, in cooperation with UNEP, has published a series of manuals based on the successful techniques and these are listed at the back of this volume. Monitoring programmes for... Tipo: Book Palavras-chave: Marine Environment; Environmental monitoring; Environment management; Variability; Marine environment; Measurement; Environmental monitoring; Marine environment; Measurement; Http://aims.fao.org/aos/agrovoc/c_37876; Http://aims.fao.org/aos/agrovoc/c_4610; Http://aims.fao.org/aos/agrovoc/c_4668. Ano: 1996 URL: http://hdl.handle.net/1834/2794 Estimaciones satelitales de clorofila y los frentes oceánicos del Atlántico Sudoccidental OceanDocs Romero, S.I.. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales (Argentina) Tipo: Theses and Dissertations Palavras-chave: Chlorophylls; Continental shelves; Shelf fronts; Estuarine front; Shelf edge fronts; Variability; Phytoplankton; Photosynthesis; Satellite sensing; Phytoplankton; Chlorophylls; Continental shelves; Photosynthesis; Http://aims.fao.org/aos/agrovoc/c_13344; Http://aims.fao.org/aos/agrovoc/c_1577; Http://aims.fao.org/aos/agrovoc/c_32413; Http://aims.fao.org/aos/agrovoc/c_5812. Ano: 2008 URL: http://hdl.handle.net/1834/2827 Estimated reservoir ages of the Black Sea since the last glacial ArchiMer Kwiecien, O.; Arz, H. W.; Lamy, F.; Wulf, S.; Bahr, A.; Roehl, U.; Haug, G. H.. Accelerator mass spectrometry (AMS) radiocarbon dating of ostracod and gastropod shells from the southwestern Black Sea cores combined with tephrochronology provides the basis for studying reservoir age changes in the late-glacial Black Sea. The comparison of our data with records from the northwestern Black Sea shows that an apparent reservoir age of similar to 1450 C-14 yr found in the glacial is characteristic of a homogenized water column. This apparent reservoir age is most likely due to the hardwater effect. Though data indicate that a reservoir age of similar to 1450 C-14 yr may have persisted until the Bolling-Allerod warm period, a comparison with the GISP2 ice-core record suggests a gradual reduction of the reservoir age to similar to 1000 C-14... Tipo: Text Palavras-chave: Mediterranean abyssal sediments; Minoan eruption; Tephra layers; Radiocarbon; Santorini; Deglaciation; History; Variability; Calibration; Resolution. Ano: 2008 URL: https://archimer.ifremer.fr/doc/00209/31990/30430.pdf Etude de la variabilité de la circulation du gyre subpolaire de l'Atlantique Nord à partir des données Ovide et de mesures satellitaires ArchiMer Gourcuff, Claire. The cyclonic circulation of the North Atlantic subpolar gyre, between 50°N and 63°N, plays a key role in the climate variability. The Ovide program contributes to the observation of the circulation in this region. A section is repeated every two years in summer since 2002 between Greenland and Portugal following a path close the Fourex 1997 section. To get transport estimates across the sections, a geostrophic box inverse model is used, constrained with direct current measurements. Our new estimates of Fourex transports show the need to use constraints temporally associated with the section to get transports estimates representative of the circulation at the section realisation dates. It is also shown that altimetry velocities can be used instead of ADCP... Tipo: Text Palavras-chave: Inverse Model; Courantology; Geostrophy; Altimetry; East Greenland Coastal Current; Freshwater fluxes; Heat transport; Meridionnal Overturning Circulation (MOC); Variability; North Atlantic; Subpolar gyre; Ovide; Modèle inverse; Géostrophie; Courantométrie; Altimétrie; Courant Côtier Est Groenlandais; Flux d'eau douce; Transport de chaleur; Circulation Méridienne de Retournement (MOC); Variabilité; Atlantique Nord; Gyre subpolaire; Ovide. Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/these-6226.pdf Forage characters of different Paspalum species in Rio Grande do Sul: a meta-analysis Ciência Rural Graminho,Larissa Arnhold; Dall’Agnol,Miguel; Pötter,Luciana; Lopes,Rodrigo Ramos; Simioni,Carine; Weiler,Roberto Luís. ABSTRACT: The objective of this study was to evaluate, through meta-analysis, the forage characteristics of various species of the genus Paspalum and to use them to select the best ecotypes that can be used in artificial hybridization as parents and hybrids for pasture production and natural pasture recovery systems. Data were obtained from studies conducted by the Department of Forage Plants and Agrometeorology of the Universidade Federal do Rio Grande do Sul. Database comprised tests conducted with ecotypes and/or hybrids of Paspalum spp. in plots for evaluating total dry mass production, leaf dry mass production, and stem dry mass production by means of cuts. Total dry mass production, which included leaves and stems, differed between the ecotypes and... Tipo: Info:eu-repo/semantics/article Palavras-chave: Apomixis; Hybridization; Plant breeding; Natural pasture; Variability. Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000700651 Fruit biometry and seed germination of Syagrus romanzoffiana (Cham.) Glassm Acta Botanica Goudel,Flora; Shibata,Marília; Coelho,Cileide Maria Medeiros; Miller,Paul Richard Momsen. Syagrus romanzoffiana (Cham.) Glassm. is a species native to Brazil that is of ecological and aesthetic importance. This study aims to describe the biometric characteristics of S. romanzoffiana fruits and to assess the effects that treatments meant to overcome dormancy and partial drying have on seed germination. For biometric characterization, each repetition consisted of 50 fruits from eight clusters (total, 400 fruits). To evaluate methods for overcoming dormancy, seeds representative of populations were treated by perforation of the operculum; perforation of the operculum and immersion in water for 24 hours; cracking; exposure to fire for three minutes; and non-removal of fibers. There was also a control group. In a second experiment, seeds were... Tipo: Info:eu-repo/semantics/article Palavras-chave: Dormancy; Syagrus romanzoffiana; Palm; Drying; Variability. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062013000100015 General hydrodynamical features in the ligurian sea inferred from the dyome experiment ArchiMer Taupier-letage, Isabelle; Millot, Claude. Tipo: Text Palavras-chave: Hydrodynamique; Mer Ligure; Circulation générale; Moyenne échelle; Variabilité; Hydrodynamics; Ligurian Sea; General circulation; Mesoscale; Variability. Ano: 1986 URL: http://archimer.ifremer.fr/doc/00110/22125/19761.pdf Registros recuperados: 122 Primeira ... 1 2 3 4 5 6 7 ... Última

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