IMPACTO DE LA TECNOLOGÍA DE TRASPLANTE MECANIZADO DE ARROZ

In the Cuban agricultural sector, both in the conventional agricultural model and in the current agricultural model aimed at sustainability on agroecological bases, the management of technology and innovation assumes the incorporation of scientific-technical results as a basic component to guarantee safety the country's food and sustainable development. This article aims to assess the relevant aspects related to the introduction of mechanized rice transplantation technology with a self-propelled transplanter to guarantee the production of seeds of new rice cultivars developed by the Los Palacios Base Scientific and Technological Unit, belonging to the Institute National of Agricultural Sciences. To develop the research, different theoretical, empirical and statistical methods were used, as well as various techniques and tools acquired in the Diploma in Business Management and Direction at the University of Pinar del Río.En el sector agropecuario cubano, tanto en el modelo agrario convencional como en el actual modelo agrario encaminado hacia la sostenibilidad sobre bases agroecológicas, la gestión de la tecnología y la innovación asume la incorporación de resultados científico técnicos en calidad de componente básico para garantizar la seguridad alimentaria del país y el desarrollo sostenible. El presente artículo tiene como objetivo valorar los aspectos relevantes relacionadas con la introducción de la tecnología de trasplante mecanizado de arroz con trasplantadora autopropulsada para garantizar la producción de semillas de nuevos cultivares de arroz que desarrolla la Unidad Científico Tecnológica de Base Los Palacios, perteneciente al Instituto Nacional de Ciencias Agrícolas. Para desarrollar la investigación se utilizaron diferentes métodos teóricos, empíricos y estadísticos, así como varias técnicas y herramientas adquiridas en el Diplomado de Dirección y Gestión Empresarial en la Universidad de Pinar del Río

Agricultura de conservación y las propiedades físicas de los suelos arroceros

In the Cuban agricultural sector, both in the conventional agrarian model and in the current agrarian model aimed at sustainability on agroecological bases, the management of technology and innovation assumes the incorporation of scientific and technical results as a basic component to guarantee security food of the country and sustainable development. In this article, a review is presented that makes Conservation Agriculture a viable alternative for improving the physical and chemical attributes of the soil and can be an ideal measure for the adaptation and mitigation of climate change in agroecosystems.En el sector agropecuario cubano, tanto en el modelo agrario convencional como en el actual modelo agrario encaminado hacia la sostenibilidad sobre bases agroecológicas, la gestión de la tecnología y la innovación asume la incorporación de resultados científico técnicos en calidad de componente básico para garantizar la seguridad alimentaria del país y el desarrollo sostenible. En este artículo, se presenta una revisión que permita convertir la Agricultura de Conservación en una alternativa viable en la mejora de los atributos físicos y químicos del suelo y puede ser una medida idónea para la adaptación y mitigación del cambio climático en agroecosistemas arroceros

El vertimiento de cascarilla de arroz y el medio ambiente

In the present work we performed an evaluation of the knowledge that exists about the damage they can cause the dumping of waste from rice production Business Unit Industrial Base Enrique Troncoso by the inhabitants of the municipality's Council South Los Palacios, the board of directors and employees of this Unit. The results obtained in the work through the use of surveys and interview both the population, as the board of management and workers of the unit, showed that there is little knowledge on environmental issues.En el presente trabajo se realizo una evaluación del conocimiento que existe acerca del daño que pueden ocasionan el vertimiento de residuos de la producción de arroz de la Unidad Empresarial de Base Industrial Enrique Troncoso por parte de los habitantes del Consejo Popular Sur del municipio Los Palacios, el consejo de dirección y los trabajadores de esta Unidad. Los resultados obtenido en el trabajo a través de la aplicación de encuestas y entrevistas tanto a la población, como el consejo de dirección y los trabajadores de la unidad, demostró que existe poco conocimiento sobre la problemática ambiental

ADOPCIÓN DE INNOVACIONES TECNOLÓGICAS PARA LA AGRICULTURA DE CONSERVACIÓN EN EL CULTIVO DEL ARROZ EN CUBA

Cuban agriculture, to achieve the sustainability of agricultural systems, needs to initiate a transition process towards conservation agriculture practices; which implies a change in production systems and the technologies they use. Specifically designed machinery is required, capable of operating in untilled soil and with crop residues or cover plants in different forms and situations. In this article, a review of the main innovations to be made in agricultural machinery to be used in a conservation agriculture system in rice agroecosystems is presented.La agricultura cubana para lograr la sostenibilidad de los sistemas agrícolas, necesita iniciar un proceso de transición hacia prácticas de agricultura de conservación; lo que implica un cambio en los sistemas de producción y las tecnologías que emplean. Se requiere maquinaria específicamente diseñada, capaz de operar en suelo no labrado y con restos de cosechas o plantas de cobertura en distintas formas y situaciones. En este artículo, se presenta una revisión de las principales innovaciones a realizar en la maquinaria agrícola a utilizar en un sistema de agricultura de conservación en agroecosistemas arroceros

Evaluación de la calidad de cosecha de la cosechadora New Holland TC57

The present study aimed to evaluate the behavior of the impurities during the performance of mechanized harvesting rice in the working conditions of the Agricultural Base Business Unit Cubanacán, belonging to the Grain Agroindustrial Los Palacios. It was evaluated the content of impurities and moisture from the grain harvested by the harvester New Holland TC57.El presente trabajo tuvo como objetivo evaluar el comportamiento del contenido de impurezas durante la realización de la cosecha mecanizada del arroz en las condiciones de trabajo del de la Unidad Empresarial de Base Agrícola Cubanacán, perteneciente a la Empresa Agroindustrial de Granos Los Palacios. Fue evaluado el contenido de impurezas y la humedad del grano cosechado por parte de la cosechadora New Holland TC57

Jet energy measurement with the ATLAS detector in proton-proton collisions at root s=7 TeV

The jet energy scale and its systematic uncertainty are determined for jets measured with the ATLAS detector at the LHC in proton-proton collision data at a centre-of-mass energy of √s = 7TeV corresponding to an integrated luminosity of 38 pb-1. Jets are reconstructed with the anti-kt algorithm with distance parameters R=0. 4 or R=0. 6. Jet energy and angle corrections are determined from Monte Carlo simulations to calibrate jets with transverse momenta pT≥20 GeV and pseudorapidities {pipe}η{pipe}<4. 5. The jet energy systematic uncertainty is estimated using the single isolated hadron response measured in situ and in test-beams, exploiting the transverse momentum balance between central and forward jets in events with dijet topologies and studying systematic variations in Monte Carlo simulations. The jet energy uncertainty is less than 2. 5 % in the central calorimeter region ({pipe}η{pipe}<0. 8) for jets with 60≤pT<800 GeV, and is maximally 14 % for pT<30 GeV in the most forward region 3. 2≤{pipe}η{pipe}<4. 5. The jet energy is validated for jet transverse momenta up to 1 TeV to the level of a few percent using several in situ techniques by comparing a well-known reference such as the recoiling photon pT, the sum of the transverse momenta of tracks associated to the jet, or a system of low-pT jets recoiling against a high-pT jet. More sophisticated jet calibration schemes are presented based on calorimeter cell energy density weighting or hadronic properties of jets, aiming for an improved jet energy resolution and a reduced flavour dependence of the jet response. The systematic uncertainty of the jet energy determined from a combination of in situ techniques is consistent with the one derived from single hadron response measurements over a wide kinematic range. The nominal corrections and uncertainties are derived for isolated jets in an inclusive sample of high-pT jets. Special cases such as event topologies with close-by jets, or selections of samples with an enhanced content of jets originating from light quarks, heavy quarks or gluons are also discussed and the corresponding uncertainties are determined. © 2013 CERN for the benefit of the ATLAS collaboration

Measurement of the polarisation of W bosons produced with large transverse momentum in pp collisions at sqrt(s) = 7 TeV with the ATLAS experiment

This paper describes an analysis of the angular distribution of W->enu and W->munu decays, using data from pp collisions at sqrt(s) = 7 TeV recorded with the ATLAS detector at the LHC in 2010, corresponding to an integrated luminosity of about 35 pb^-1. Using the decay lepton transverse momentum and the missing transverse energy, the W decay angular distribution projected onto the transverse plane is obtained and analysed in terms of helicity fractions f0, fL and fR over two ranges of W transverse momentum (ptw): 35 < ptw < 50 GeV and ptw > 50 GeV. Good agreement is found with theoretical predictions. For ptw > 50 GeV, the values of f0 and fL-fR, averaged over charge and lepton flavour, are measured to be : f0 = 0.127 +/- 0.030 +/- 0.108 and fL-fR = 0.252 +/- 0.017 +/- 0.030, where the first uncertainties are statistical, and the second include all systematic effects.Comment: 19 pages plus author list (34 pages total), 9 figures, 11 tables, revised author list, matches European Journal of Physics C versio

Observation of a new chi_b state in radiative transitions to Upsilon(1S) and Upsilon(2S) at ATLAS

The chi_b(nP) quarkonium states are produced in proton-proton collisions at the Large Hadron Collider (LHC) at sqrt(s) = 7 TeV and recorded by the ATLAS detector. Using a data sample corresponding to an integrated luminosity of 4.4 fb^-1, these states are reconstructed through their radiative decays to Upsilon(1S,2S) with Upsilon->mu+mu-. In addition to the mass peaks corresponding to the decay modes chi_b(1P,2P)->Upsilon(1S)gamma, a new structure centered at a mass of 10.530+/-0.005 (stat.)+/-0.009 (syst.) GeV is also observed, in both the Upsilon(1S)gamma and Upsilon(2S)gamma decay modes. This is interpreted as the chi_b(3P) system.Comment: 5 pages plus author list (18 pages total), 2 figures, 1 table, corrected author list, matches final version in Physical Review Letter