Listar Congresos 2011 y anteriores por título
Mostrando ítems 98-117 de 124
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Relation between the location of check dams and adjacent vegetation cover in ephemeral gullies (Southeast Spain)
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007) Contribución a congreso / Biltzarrerako ekarpenaIn general, the work carried out on vegetation in the Mediterranean catchments is focused more on the hillside vegetation cover than the riparian. Apart from occasional contributions by Alcaraz et al. (1997), Salinas et ... -
The role of preferential flow through soil-pipes in ephemeral gully erosion
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007) Contribución a congreso / Biltzarrerako ekarpenaThe objective of this study was to quantify the hydrologic conditions under which discontinuous soil-pipes reestablish ephemeral gullies and continuous soil-pipes initiate ephemeral gullies. -
The roles of SC3 and SC15 of Schizophyllum commune during growth on wood
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2006) Contribución a congreso / Biltzarrerako ekarpenaThe SC3 hydrophobin plays several roles in growth and development of S. commune. It lowers the surface tension of the aqueous substrate, enabling aerial growth, and it coats the aerial hyphae rendering them hydrophobic. ... -
Runoff and sediment supply from small gullied and ungullied basins in a semi-arid grazed environment
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007) Contribución a congreso / Biltzarrerako ekarpenaThe aim of the present study is to determine links between rainfall, runoff, gully erosion and sediments. The extent of sediment yield (suspended sediment and bedload) and runoff response from gullied and ungullied basins ... -
Scouring-sedimentation balance for gully reaches affected by check dams in Mediterranean environments
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007) Contribución a congreso / Biltzarrerako ekarpenaMany of the geomorphological impacts caused by check dams are usually fairly common in torrential channels (bed agradation upstream into the sedimentary wedges, deepening and narrowing of the bankfull channel downstream, ... -
Secondary structure of the ribosomal PreRNA ITS2 region as a tool in studies of fungal diversity and phylogeny
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2006) Contribución a congreso / Biltzarrerako ekarpenaThe ribosomal RNA gene, and particularly its 18S and 25S sequences, have proven valuable in large-scale phylogenetic analyses. The ITS region of the ribosomal RNA gene, instead, has not been regarded so useful in this ... -
Seepage erosion impacts on edge-of-field gully erosion
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007) Contribución a congreso / Biltzarrerako ekarpenaConcentrated flow is generally considered the controlling mechanism for gully erosion whereas subsurface flow is often overlooked. The two mechanisms of subsurface flow attributed to gully erosion are seepage flow and ... -
Seepage flow in aquifers with open and closed boundaries
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007) Contribución a congreso / Biltzarrerako ekarpenaAt previous gully erosion conferences, the effect of surface seal development on gully formation and growth was analyzed (Prasad and Römkens, 2003) and the effect of hydrological conditions on gully growth was discussed (Römkens ... -
Selection of Pleurotus ostreatus strains in a genetic breeding program
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2006) Contribución a congreso / Biltzarrerako ekarpenaThe basidiomycete Pleurotus ostreatus, commonly known as oyster mushroom, is the second largest edible mushroom crop behind the white button mushroom, Agaricus bisporus. It accounts for nearly one-quarter of the ... -
Sequence analysis and expression of a RecQ gene homologue from Lentinula edodes
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2006) Contribución a congreso / Biltzarrerako ekarpenaWe cloned and sequenced a recQ gene homologue from Lentinula edodes. This gene, named Le.recQ, was found to have a coding capacity of 945 amino acids (aa). The deduced Le.RECQ protein was clearly smaller than other fungal ... -
Sidewall erosion control strategies in gullies of the Penedès – Anoia vineyard region (NE Spain)
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007) Contribución a congreso / Biltzarrerako ekarpenaThe objective of this work is to formulate different sidewall erosion control strategies to reduce retreat and sediment production rates in the gullies of the Penedès-Anoia (NE Spain) region. -
Soil erosion on the bottom of hollows in steppe zone of Ukraine
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007) Contribución a congreso / Biltzarrerako ekarpenaSoil erosion, undoubtedly, is one of the main ecological and agricultural problems in the world. Quantity of eroded lands in Ukraine achieves 10.5 millions ha. Annual losses of soil constitutes about 600 millions tons ... -
Some examples of ephemeral gully erosion in an Atlantic area of NW Spain
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007) Contribución a congreso / Biltzarrerako ekarpenaThis study aimed to describe types of ephemeral gullies and to determine their origin, evolution and importance as sediment sources in Galicia (Northwest Spain). Concentrated erosion was surveyed on medium textured soils, ... -
Soybean rust, a rising star in phytopathology
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2006) Contribución a congreso / Biltzarrerako ekarpenaPhakopsora pachyrhizi, an obligate parasite, causes soybean rust, the most devastating foliar disease on soybeans. It is responsible for significant losses of soybean crop in Africa, Asia, Australia and South America, ... -
Spatial and temporal expression of laccase in Coprinopsis cinerea using galectin promoters
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2006) Contribución a congreso / Biltzarrerako ekarpenaGalectins are ß-galactoside binding lectins defined by a conserved sequence. In mammals, there is a family of galectins that interact with glycoproteins in both extracellular and intracellular milieu and regulate various ... -
Species identification and detection of fungi in biological materials by FTIR microscopy
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2006) Contribución a congreso / Biltzarrerako ekarpenaFTIR spectroscopy provides the opportunity to simultaneously detect many molecular bonds or functional groups of different polysaccharides, proteins, lipids, aromatic and other compounds. The measurement principle is ... -
Study of two acidic proteinases, probably involved in the dimorphism and pathogenicity of Ustilago maydis, basidiomycete of the corn smut disease
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2006) Contribución a congreso / Biltzarrerako ekarpenaUstilago maydis is a dimorphic phythopathogenic fungus and the causal agent of the corn smut disease. In this work, the purification and biochemical characterization of the acid proteinases pumAe (extracellular) and pumAi ... -
Surfaces of gullies generated by piping process in abandoned fields (south-east of Spain)
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007) Contribución a congreso / Biltzarrerako ekarpenaThe piping process have an important development in old agricultural terraced fields. The abandonment of these fields, together with the lithologies, hydraulic and climatic characteristics favour the quick development of ... -
Turbulent flow within headcut scour holes in rills and gullies
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007) Contribución a congreso / Biltzarrerako ekarpenaThe objectives of the present study were to experimentally determine the time-mean turbulent flow characteristics within fixed-bed models of headcut scour holes typical of upland concentrated flows to assess soil erosion ... -
Urban gullies in São Luis City, Maranhão State, Brazil
(Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2007) Contribución a congreso / Biltzarrerako ekarpenaUrban gully erosion is a serious problem in São Luís City, Maranhão State, Brazil. São Luís Municipality covers 831.7 km? and is situated in west-central Maranhão Island (2º19’09”-2º51’00” S; 44º01’16”-44º19’37” W). ...