Buscar
Mostrando ítems 11-20 de 419
The urea transporter DUR3 is differentially regulated by abiotic and biotic stresses in coffee plants
(2021-02-01)
The high costs of N fertilizers in the coffee production emphasizes the need to optimize fertilization practices and improve nitrogen use efficiency. Urea is widespread in nature, characterizing itself as a significant ...
Assessing the ex ante economic impacts of transportation infrastructure policies in Brazil
(ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD, 2011)
This paper uses a fully operational inter-regional computable general equilibrium (CGE) model implemented for the Brazilian economy, based on previous work by Haddad and Hewings, in order to assess the likely economic ...
Entre puertos, campos y acopios: trabajo y transporte de granos en torno al sudeste bonaerenseAmong ports, fields and grain storage: Work process and transport of grains in the South-East of Buenos Aires
(Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación. Centro de Historia Argentina y Americana, 2014-12)
En este artículo, se analiza el proceso de trabajo en el transporte automotor de granos en torno al sudeste bonaerense. Desde un abordaje cualitativo, se describen y analizan las prácticas durante la cosecha y poscosecha, ...
Experimental verification of reciprocity relations in quantum thermoelectric transport
(American Physical Society, 2014-10)
Fundamental symmetries in thermoelectric quantum transport, beyond Onsagers relations, were predicted two decades ago but have to date not been observed in experiments. Recent works have predicted the symmetries to be ...
Unfolding barriers for urban mobility plan in small and medium municipalities – A case study in Brazil
(2020-02-01)
This paper investigated barriers for the design and implementation of Urban Mobility Plans in small and medium-sized cities in the State of São Paulo, Brazil. To achieve this objective an exploratory survey was carried out ...
Propiedades de transporte de hormigón con cemento puzolánicoTransport properties of concrete with pozzolanic cement
(Laboratorio de Entrenamiento Multidisciplinario para la Investigación Tecnológica, 2016-08)
Existen estructuras emplazadas en medios agresivos que requieren una adecuada resistencia al ingreso de agentes agresivos para completar su vida útil con un nivel aceptable de serviciabilidad. Adicionalmente a las buenas ...
Escuchando música en el transporte público: sobre usos de la telefonía móvil por parte de jóvenesEscutando música no transporte público: sobre usos da telefonia móvel por parte de jovensListening music on the public transport: about uses of movile phones by young people
(Sociedade Brasileira de Estudos Interdisciplinares da Comunicação, 2015-07)
El objeto de estudio del presente trabajo se focaliza en los usos de la telefonía móvil como reproductor musical en el espacio público. Esta práctica es comúnmente estilizada por jóvenes de sectores populares, quienes ...
Citizenship and the embodied practice of wheelchair use
(Elsevier, 2015-08)
Citizenship has been associated with members of a community that engage in paid work (Painter and Philo, 1995; Desforges et al., 2005). This idea constructs remunerated work as a key determinant of citizenship (Brown and ...
Thermoelectric transport properties through a T-shaped single quantum dot
(ELSEVIER SCIENCE BV, 2010)
We study the thermopower, thermal conductance, electric conductance and the thermoelectric figure of merit for a gate-defined T-shaped single quantum dot (QD). The QD is solved in the limit of strong Coulombian repulsion ...
Phase and amplitude measurements for high bandwidth optical signals
(Elsevier Science Inc, 2014-08)
In this paper a novel technique for obtaining the amplitude and phase of optical pulses with time extents as short as tens of ps is presented. The method which is based on the transport-of-intensity equation only requires, ...