RECERCAT
Not a member yet
241611 research outputs found
Sort by
P-type ultrawide-band-gap spinel ZnGa2O4 : new perspectives for energy electronics
No full textThe family of spinel compounds is a large and important class of multifunctional materials of general formulation ABX with many advanced applications in energy and optoelectronic areas such as fuel cells, batteries, catalysis, photonics, spintronics, and thermoelectricity. In this work, it is demonstrated that the ternary ultrawide-band-gap (∼5 eV) spinel zinc gallate (ZnGaO) arguably is the native p-type ternary oxide semiconductor with the largest E value (in comparison with the recently discovered binary p-type monoclinic β-GaO oxide). For nominally undoped ZnGaO the high-temperature Hall effect hole concentration was determined to be as large as p = 2 × 10 cm, while hole mobilities were found to be μ = 7-10 cm/(V s) (in the 680-850 K temperature range). An acceptor-like small Fermi level was further corroborated by X-ray spectroscopy and by density functional theory calculations. Our findings, as an important step toward p-type doping, opens up further perspectives for ultrawide-band-gap bipolar spinel electronics and further promotes ultrawide-band-gap ternary oxides such as ZnGaO to the forefront of the quest of the next generation of semiconductor materials for more efficient energy optoelectronics and power electronics
My Body Not My Own : an Intersectional View on Relationality in Fiction by Toni Morrison and Louise Erdrich
No full textEste artículo contribuye a la lucha actual contra la violencia de género con un análisis de Home (2012), de Toni Morrison, y The Round House (2012), de Louise Erdrich. El artículo presenta una comparación transétnica combinada con una motivación feminista interseccional que resalta la complicidad del racismo y el sexismo, y articula una teorización de la relacionalidad dirigida a contrarrestar la disociación derivada de la violencia. Defendiendo la centralidad de las mujeres de color cuyos cuerpos son transgredidos -esterilizados, violados- en los textos, ofrece una lectura atenta de la representación indirecta de la violencia, los personajes masculinos en conflicto, símbolos ambivalentes y finales abiertos, además de la conexión con mitos afro-americanos y ojibwe. El artículo concluye que la relacionalidad es la mejor respuesta frente a la violencia sistémica de la colonialidad del género.This essay makes a contribution to the contemporary struggle against gender violence with an analysis of Toni Morrison's Home (2012) and Louise Erdrich's The Round House (2012). The article presents a transethnic comparison combined with an intersectional feminist motivation to highlight the complicity of racism and sexism, and it articulates a theorization of relationality as the way to counter the dissociation derived from violence. Arguing for the pivotal role of the women of color whose bodies are violated -sterilized, raped- in the texts, it offers a close reading of the indirect account of violence, the conflicted male characters, ambivalent symbols and open endings, and the connection to African American and Ojibwe myth. The article leads to the conclusion that relationality is the best response to the systemic violence of the coloniality of gender
Antes del orgullo. Recuperando la memoria gay. Jorge Luis Peralta (ed.). Barcelona y Madrid, Egales, 2019
No full textObra ressenyada: Jorge Luis PERALTA (ed.), Antes del orgullo. Recuperando la memoria gay. Barcelona y Madrid: Egales, 2019
Mexican American Women, Dress, and Gender: Pachucas, Chicanas, Cholas. Amaia Ibarraran-Bigalondo. Abingdon y Nueva York, Routledge, 2019
No full textObra ressenyada: Amaia IBARRARAN-BIGALONDO, Mexican American Women, Dress, and Gender: Pachucas, Chicanas, Cholas. Abingdon y Nueva York: Routledge, 2019
Diversity and paleoenvironmental implications of an elasmobranch assemblage from the Oligocene-Miocene boundary of Ecuador
No full textAltres ajuts: Research Groups CSIC 64 1538 and CAM-UCM910607The occurrence and diversity of elasmobranchs from the Oligocene-Miocene boundary from Tropical America is poorly known in comparison with the paleodiversity from younger Neogene intervals of the region. Here we describe a new elasmobranch assemblage from the rich fossil site of Montañita-Olón (Dos Bocas Formation, Santa Elena, Ecuador), where other vertebrates have already been described: for example, sea turtles and cetaceans. We report a total of 27 elasmobranch taxa, 19 of which are new fossil records for Ecuador, 10 new records for the Central Eastern Pacific and four new records for South America. Additionally, in order to reconstruct the environment where these marine remains were deposited, we performed abundance, paleobathymetric and habitat preference analyses, concluding that they were likely deposited in an outer neritic (open shelf) environment. The study of Oligocene and early Miocene marine elasmobranchs faunas in Tropical America is key to addressing the issues in the evolutionary history of this group
Managing Psoriasis Consultations During the COVID-19 Pandemic : Recommendations From the Psoriasis Group of the Spanish Academy of Dermatology and Venereology (AEDV)
No full textTourism in Spain, beyond the sun and the beach. Recent evolution and changes in coastal destinations towards cultural tourism
No full textEn muchos destinos maduros, el tradicional turismo de litoral necesita productos innovadores que le ayuden a su regeneración. Uno de ellos es el turismo cultural. Así, en este trabajo, después de conocer la situación actual del turismo, en base a los datos disponibles, se profundiza en el caso del turismo cultural en España, entendido como un turismo complementario en los destinos de litoral, y se demuestra que, efectivamente, el país también se está posicionando como un destino internacional de turismo cultural que ayuda a la revitalización de unos destinos tradicionalmente orientados al sol y la playa.In many mature destinations, the traditional tourism of littoral needs innovative products that help him to his regeneration. One of them is the cultural tourism. In this work paper, after knowing the current situation of the tourism, from data information, it is deepened in case of the cultural tourism in Spain, understood as a complementary tourism in the destinations of littoral, and there is demonstrated that, really, the country also is positioned as an international destination of cultural tourism that helps the regeneration of a destinations traditionally orientated to the sun and the beach
MYH9-related disease : it does exist, may be more frequent than you think and requires specific therapy
No full textAltres ajuts: Sources of support: FIS/Fondos FEDER (REDinREN RD016/0009), Sociedad Española de Nefrología, FRIAT, Comunidad de Madrid en Biomedicina B2017/BMD-3686 CIFRA2-CM. Salary support: ISCIII Rio Hortega to M.V.P.-G.In this issue of ckj, Tabibzadeh et al. report one of the largest series of patients with MYH9 mutations and kidney disease. The cardinal manifestation of MYH9-related disease is thrombocytopenia with giant platelets. The population frequency of pathogenic MYH9 mutations may be at least 1 in 20 000. The literature abounds in misdiagnosed cases treated for idiopathic thrombocytopenic purpura with immune suppressants and even splenectomy. Additional manifestations include neurosensorial deafness and proteinuric and hematuric progressive kidney disease (at some point, it was called Alport syndrome with macrothrombocytopenia), leucocyte inclusions, cataracts and liver enzyme abnormalities, resulting in different names for different manifestation combinations (MATINS, May-Hegglin anomaly, Fechtner, Epstein and Sebastian syndromes, and deafness AD 17). The penetrance and severity of kidney disease are very variable, which may obscure the autosomal dominant inheritance. A correct diagnosis will both preclude unnecessary and potentially dangerous therapeutic interventions and allow genetic counselling and adequate treatment. Morphological erythrocyte, granulocyte and platelet abnormalities may allow the future development of high-throughput screening techniques adapted to clinical peripheral blood flow cytometers