4,517 research outputs found
Soil erodibility in Europe: a high-resolution dataset based on LUCAS
No full textThe greatest obstacle to soil erosion modelling at larger spatial scales is the lack of data on soil characteristics. One key parameter for modelling soil erosion is the soil erodibility, expressed as the K-factor in the widely used soil erosion model, the Universal Soil Loss Equation (USLE) and its revised version (RUSLE). The K-factor, which expresses the susceptibility of a soil to erode, is related to soil properties such as organic matter content, soil texture, soil structure and permeability. With the Land Use/Cover Area frame Survey (LUCAS) soil survey in 2009 a pan-European soil dataset is available for the first time, consisting of around 20,000 points across 25 Member States of the European Union. The aim of this study is the generation of a harmonized high-resolution soil erodibility map (with a grid cell size of 500 m) for the 25 EU member states. Soil erodibility was calculated for the LUCAS survey points using the nomograph of Wischmeier and Smith (1978). A Cubist regression model was applied to correlate spatial data such as latitude, longitude, remotely sensed and terrain features in order to develop a high-resolution soil erodibility map. The mean K-factor for Europe was estimated at 0.032 t ha h ha-1 MJ-1 mm-1 with a standard deviation of 0.009 t ha h ha-1 MJ-1 mm-1. The yielded soil erodibility dataset compared well with the published local and regional soil erodibility data. However, the incorporation of the protective effect of surface stone cover, which is usually not considered for the soil erodibility calculations, resulted in an on average 15% decrease of the K-factor. The exclusion of this effect in K-factor calculations is likely to result in an overestimation of soil erosion, particularly for the Mediterranean countries, where highest percentages of surface stone cover were observed
Título: Consideraciones en los Euangelios de los domingos de aduiento y festiuidades
No full textSinaturas A en lugar de [calderón]Sinaturas B en lugar de MMarca tip. en portDatos entre [@] tomados de colofónSign.: [calderón]>888484<Error de pag., de p. 539 pasa a 580Texto a dos co
Título: Consideraciones en los euangelios, desde el dia de la circuncisión, hasta el de la purificación...
No full textColofónSign.: [ ]\p2\s, A-Z\p8\s, 2A-2Q\p8\s, 2R\p4\sPort. con orla tipTexto a dos colEsc. xil. de los Dominicos en p. 576Sign.: []¡2, A-Z¡8, 2A-2Q¡8, 2R¡4Texto a dos col. con doble fileteadoEsc. xil. en p. 57
La Diputacion provincial de Orense, penetrada de que el único medio de asegurar la independencia nacional recobrada ... y amenazada actualmente es la muy pronta efectuacion del reemplazo dispuesto por las Córtes ... previene que cada Diputacion presente el cupo de su provincia vestido y armado dentro del preciso término de un mes ... Gefe político ... acordó ... invitar á todos los sujetos que se encuentren en circunstancias de elebrar contrato sobre el medio vestuario con capote de los 802 hombres...
No full textTítulo tomado do comezo do texto.Respectouse a puntuación orixinal.Texto asinado por Pedro Boado Sanchez, G. P. presidente ; José Lucas Labrada, secretarioAo fin do texto constan os nomes de: Pedro Boado Sanchez, G. P. presidente ; José Lucas Labrada, secretarioDatado en: Orense y Febrero 19 de 1823Datado en: Orense y Febrero 19 de 182
A novel type of lysine oxidase: l-lysine-ε-oxidase
No full textThe melanogenic marine bacterium M. mediterranea synthesizes marinocine, a protein with antibacterial activity. We cloned the gene coding for this protein and named it lodA [P. Lucas–Elío, P. Hernández, A. Sanchez-Amat, F. Solano, Purification and partial characterization of marinocine, a new broad-spectrum antibacterial protein produced by Marinomonas mediterranea. Biochim. Biophys. Acta 1721 (2005) 193–203; P. Lucas-Elío, D. Gómez, F. Solano, A. Sanchez-Amat, The antimicrobial activity of marinocine, synthesized by M. mediterranea, is due to the hydrogen peroxide generated by its lysine oxidase activity. J. Bacteriol. 188 (2006) 2493–2501]. Now, we show that this protein is a new type of lysine oxidase which catalyzes the oxidative deamination of free l-lysine into 6-semialdehyde 2-aminoadipic acid, ammonia and hydrogen peroxide. This new enzyme is compared to other enzymes related to lysine transformation. Two different groups have been used for comparison. Enzymes in the first group lead to 2-aminoadipic acid as a final product. The second one would be enzymes catalyzing the oxidative deamination of lysine releasing H2O2, namely lysine-α-oxidase (LαO) and lysyl oxidase (Lox). Kinetic properties, substrate specificity and inhibition pattern show clear differences with all above mentioned lysine-related enzymes. Thus, we propose to rename this enzyme lysine-ε-oxidase (lod for the gene) instead of marinocine. Lod shows high stereospecificity for free l-lysine, it is inhibited by substrate analogues, such as cadaverine and 6-aminocaproic acid, and also by β-aminopropionitrile, suggesting the existence of a tyrosine-derived quinone cofactor at its active site.
Abbreviations
AANaminoacetonitrileβAPNβ-aminopropionitrileLAOl-amino acid oxidaseLαOLysine-α-oxidaseLatLysine-ε-aminotransferaseLodMarinocine (Lysine-ε-oxidase)LoxLysyl oxidaseLTQLysyl-Tyrosyl-QuinoneSDHsaccharopine dehydrogenaseSSAOsemicarbazide sensitive amino oxidaseTDQCtyrosine-derived quinone cofactorsTLCThin layer chromatograph
Eugenia mozomboensis P. E. Sanchez, Phytologia
No full text45. * Eugenia mozomboensis P. E. Sánchez, Phytologia 81: 126 (1986) EOO: 5,083.443 km ². AOO: 12 km ². Evaluation of IUCN: Endangered. Eugenia mozomboensis has a distribution known only in the states of Veracruz and Hidalgo, occurring in the remnants of Humid Tropical Forest and Humid Montane Forest. The estimated extent of occurrence (EOO) falls within the thresholds of Endangered and Vulnerable categories under the criterion B, whilst the estimated area of occupancy (AOO) falls into the thresholds of Endangered category. Three collection records were found, two in Veracruz and one for Hidalgo, representing two different locations and all of them have ongoing threats. The habitat is impacted by anthropic activity, such as agriculture, extraction of miners and native forests, in addition to urban growth (CONABIO 2018) from which is inferred a continuing decline of habitat quality. Taking a precautionary approach, Eugenia mozomboensis is classified as Endangered (EN) considering that it is closer the thresholds for Endangered category than Vulnerable (VU), based on its estimated extent of occurrence and number of locations (less than 5). Therefore, it meets the criteria B 1ab(iii)+ B 2ab(iii). Specimens examined:— MEXICO. Hidalgo: Blanco 1549 (MEXU!); Veracruz: Castillo-Campos et al. 16008 (MEXU!).Published as part of Uc Gala, Victor C., Valdemarin, Karinne Sampaio, Lucas, Eve, Negrão, Raquel & Mazine, Fiorella F., 2023, Eugenia (Myrtaceae) from Mexico: checklist, distribution, and conservation assessments, pp. 99-140 in Phytotaxa 583 (2) on page 117, DOI: 10.11646/phytotaxa.583.2.1, http://zenodo.org/record/760925
Sermon que predico a la magestad del rey Don Felipe III... el P. Geronymo de Florencia... en las Honras que su Magestad hizo a la... Reyna D. Margarita... en S. Geronymo el Real de Madrid, a 18 de Nouiembre de 1611
No full textPort. con esc. xil. realEnc. Perg.Sign.: A-E
Quadratic forms representing pth terms of Lucas sequences
No full textThis is the author accepted manuscript. The final version is available from Elsevier via the DOI in this record.We prove that if {An}n≥0 is any Lucas sequence and p is any prime, then 4Ap admits a representation by one of two quadratic forms according to the residue class of p modulo 4.We thank the referee for comments which improved the quality of this paper. F. L. was partially supported by grant CPRR160325161141 and an A-rated scientist award both from the NRF of South Africa and by grant no. 17-02804S of the Czech Granting Agency
Reescrita de si pelo outro: identidade portuguesa e paródia em Deus-dará, de Alexandra Lucas Coelho / Rewriting oneself through the other: Portuguese identity and parody in Deus-dará, by Alexandra Lucas Coelho
No full textResumo: O artigo aponta o modo como o romance Deus-dará de Alexandra Lucas Coelho, escritora portuguesa contemporânea, pode ser compreendido como um exercício de renegociação da identidade portuguesa em relação a questões referentes à colonização no Brasil. Mais do que isso, problematiza-se como, por meio da estratégia da paródia no texto ficcional, a autora consegue expressar uma necessidade e possibilidade de se redefinir pelo outro em um movimento contrário ao do discurso colonial – o que também ocorre em suas entrevistas e em suas narrativas de viagens, tais como em Vai, Brasil e Cinco Voltas na Bahia e um beijo para Caetano Veloso. Palavras-chave: identidade portuguesa; paródia; pós-modernismo; escrita portuguesa contemporânea; Alexandra Lucas Coelho. Abstract: The article observes how the novel Deus-dará, by Alexandra Lucas Coelho, a Portuguese contemporary writer consists in an exercise of renegotiation for the Portuguese identity in relation to issues that refer to the colonization process in Brazil. Moreover, this text seeks to show how parody as a fictional literary strategy helps the author in expressing a necessity and a possibility of redefining oneself through the other, in a direction that goes in the opposite way of the colonial speech. This necessity and this possibility also appear in the author’s interviews and travel books, such as Vai, Brasil and Cinco Voltas na Bahia e um beijo para Caetano Veloso, which will also be mentioned in this article.Keywords: Portuguese identity; parody; post-modernism; Portuguese contemporary writing; Alexandra Lucas Coelho
Eugenia inirebensis P. E. Sanchez, Phytologia
No full text35. * Eugenia inirebensis P.E.Sánchez, Phytologia 61: 127 (1986) EOO: 7,664.678 km ². AOO: 16 km ². Evaluation of IUCN: Vulnerable. Eugenia inirebensis is endemic to Mexico and restrict to in the state of Veracruz. The species occurs in the biome called Humid Tropical Forest, between 300 to 1,300 m elev. The estimated extent of occurrence (EOO) falls within the thresholds of the Vulnerable category under the criterion B. The area of occupancy (AOO) would probably exceed the thresholds of Endangered category if the remaining habitat available is taken in account. There are inferred only up to four known locations for this species based on its five collections recorded in four municipalities, including two collections within the protected area “Reserva de la Biosfera Los Tuxtlas” (CONANP 2006a). The habitat is gradually deteriorating due to the impact of urban development and pressure from the agricultural frontier (CONABIO 2018). The major threats for this species are the urban expansion, agriculture expansion focused on crops production and the increase of illegal forest fires used to expand areas of livestock farming. The protected area where this species occurs has been studied and it is estimated that it contains about half of the species of Veracruz flora and corresponds to one of the last remnants of the humid tropical forest (Dirzo & García 1992, Castillo-Campos & Laborde 2004, Arroyo-Rodríguez et al. 2010). At present Eugenia inirebensis is classified as Vulnerable (VU) as it meets the criteria B1ab(iii)+B2ab(iii). Specimen examined:— MEXICO. Veracruz: Calzada 136 (MEXU!).Published as part of Uc Gala, Victor C., Valdemarin, Karinne Sampaio, Lucas, Eve, Negrão, Raquel & Mazine, Fiorella F., 2023, Eugenia (Myrtaceae) from Mexico: checklist, distribution, and conservation assessments, pp. 99-140 in Phytotaxa 583 (2) on page 114, DOI: 10.11646/phytotaxa.583.2.1, http://zenodo.org/record/760925
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