Search results for "PANA"
showing 10 items of 193 documents
Sustainable tourism and global warming: panacea, excuse, or just an accidental connection?
2012
PurposeThe debate linking tourism with global warming is very polemical: neither camp engaged in the debate sees the other side. Sustainable tourism is seen by some as a panacea to mitigate the negative impact of tourism on global warming, and by many others as a ploy planted by post‐industrial society to divert attention from the core issues. A few see it as just an accidental relationship. This paper aims to be a reflective essay on the current state of polemics relating to tourism and global warming.Design/methodology/approachA critical review of relevant literature coupled with original reflections of the authors forms the basis of argument employed in this paper. In certain ways, this …
Influence of music on the emotions perceived in the students of secondary and baccalaureate education
2020
El presente trabajo estudia la influencia que la música ejerce sobre las emociones en alumnado perteneciente a la etapa de Educación Secundaria Obligatoria y Bachillerato. Para ello, se realiza un diseño cuasiexperimental en el que se expone a 104 alumnos de un instituto público del área metropolitana de Valencia a una audición musical y se mide con el test PANAS el cambio en sus emociones. Se pretende demostrar que la música es una herramienta válida para la mejora emocional del alumnado, así como reforzar la importancia de esta materia en el currículo. Esta investigación nace debido a la falta de presencia del factor emocional en las aulas y se fundamenta en los estudios realizados por gr…
A revision of the new world species of Polytrichophora Cresson and Facitrichophora, new genus (Diptera, Ephydridae)
2012
The New World species of Polytrichophora Cresson and Fascitrichophora new genus, are revised. Fifteen new species are described (type locality in parenthesis): Fascitrishophora atrella sp. n. (Costa Rica. Guanacaste: Murciélago [10°56.9’N, 85°42.5’W; sandy mud flats around mangrove inlet]), F. carvalhorum sp.n. (Brazil. São Paulo: Praia Puruba [23°21’S, 44°55.6’W; beach]), F. manza sp. n. (Trinidad and Tobago. Trinidad. St. Andrew: Lower Manzanilla (12 km S; 10°24.5’N, 61°01.5’W), bridge over Nariva River), F. panama sp. n. (Panama. Darien: Garachine [8°04’N, 78°22’W]), Polytrichophora adarca sp. n…
Distribución y formación de rentas en España
1996
n°6 de la collection "Documentos de Econometrica"; Documentos de Econometrica (Université de Saint Jacques de Compostelle), n°6; International audience
El rendimiento de las inversiones educativas en Espana
1993
International audience; Este artículo estudia la distribución individual de los satarios en España y presenta distintos ajustes de la función generadora de ganancias, en el marco de la teoría del capital humanv. Las tasas de rendimientos del capital humano que obtenemos se fundamentan en los datos de la encuesta de Presupuestos Familiares realizada en 1980-81 por el Instituto Nacional de Estadística
Coste y Financiación de la Universidad Española
1988
International audience
La asignacion del tiempo en la Universidad: el caso de los estudiantes brasilenos, espanoles y franceses
1995
International audience
Efficient microwave-assisted synthesis of PCBM methanofullerenes (C60 and C70)
2015
PCBM is a fullerene derivative (phenyl-C61-butyric acid methyl ester) considered to be one of the best n-type organic semiconductors and plays a relevant role in organic photovoltaic solar cells. Much effort has been devoted to the optimization of the synthesis of PCBM derivatives. In this paper, PC61BM and PC71BM fullerene mono-adducts but also PCBM-like derivatives are successfully prepared by a one- step cyclopropanation reaction under microwave irradiation. The products are collected in good yields in short time, during which isomerization of the open [5,6] to the closed [6,6] form takes place in situ. In addition, with the use of two cycles of irradiation, a series of mixtures of bis-a…
Hemocyanin subunit organization of the gastropod Rapana thomasiana
1999
Abstract RtH1 and RtH2, the two hemocyanin isoforms of the prosobranch gastropod Rapana thomasiana, have been purified by anion-exchange chromatography and studied by SDS–PAGE and immunoelectrophoresis. Both subunit types are built up of eight functional units (FUs). Under reducing conditions subunit RtH2 splits into two fragments, RtH2- a – f and RtH2- gh, suggesting the presence of a disulfide bridge between FU2- f and FU2- g. By proteolytic cleavage of the subunits into three-, two-, and single-FU fragments, purification of fragments by HPLC, N-terminal sequencing of the peptides, and crossed-line immunoelectrophoresis, FUs- a – h of RtH2 and FU- a, FU- d, FU- e, and FU- f of RtH1 were i…
Are and bivoltine (Lepidoptera: Lycaenidae)? The discriminatory value of genetics in taxonomy
2005
Abstract Taxonomic confusion exists in several sibling species groups. The Polyommatus coridon species complex (Chalk Hill Blues) serves as a model group of sibling species in which genetic analyses provide suitable means for taxonomic clarification. We studied the allozyme patterns of the two described bivoltine species of this complex, Polyommatus hispana and Polyommatus slovacus , and compared them to the two genetic lineages of the univoltine P. coridon. P. hispana is well distinguished from P. coridon (genetic distance: 0.081), and most probably is a sibling species that has evolved during glacial isolation on the Iberian Peninsula. P. slovacus is genetically indistinguishable from the…