Estudio de viabilidad económica del tren de transporte de carbón del Carare

Trabajo de gradoEstudiar la viabilidad en términos económicos de la construcción de una vía férrea que conectará las ciudades de Belencito y Vizcaína en el centro del país, mejor conocido como el Tren del Carare, el cual ha sido objeto de estudio desde hace décadas y el deseo de los productores de carbón del país. La implementación de esta vía impulsaría el desarrollo del sector carbonífero de la zona de influencia del proyecto a causa de la reducción en los costos logísticos del transporte del carbón desde las zonas de extracción hasta la disposición final en los puertos de exportación.INTRODUCCIÓN 1 GENERALIDADES 2 MARCOS DE REFERENCIA 3 METODOLOGÍA 4 PRODUCTOS A ENTREGAR 5 ENTREGA DE LOS RESULTADOS ESPERADOS E IMPACTOS 6 NUEVAS ÁREAS DE ESTUDIO 7 CONCLUSIONES 8 RECOMENDACIONESEspecializaciónEspecialista en Gerencia de Obras Civile

Mojave Applied Ecology Notes Summer 2008

Soil climate project, rare plant monitoring, JFS update, granivory and Sahara mustar

Modelo de análisis para el dominio de tránsito ciclista

En este trabajo se presenta un modelo del dominio de aplicación enmarcado en el análisis del tránsito ciclista en una ciudad mediana, como la de Puerto Madryn. El objetivo del modelo es construir conocimiento que permita determinar los trayectos más adecuados para emplazar en esa ciudad ciclovías. El núcleo de la propuesta es el análisis de información de recorridos, que permita sintetizar trayectos con sus respectivas longitudes, frecuencias, densidades y ponderaciones. Además del modelo teórico, se presenta una herramienta de análisis de datos capturados (recorridos realizados por los ciclistas) y un generador de recorridos sintéticos.IX Workshop Innovación en Sistemas de Software (WISS).Red de Universidades con Carreras en Informática (RedUNCI

Optimization systems developed to improve the yield on tungsten and tantalum extraction and reduce associated costs – the EU HORIZON 2020 Optimore project (grant no. 642201)

Peer ReviewedPostprint (published version

La Fm Cardona como nivel de despegue de las estructuras frontales del SE Pirenaico (zona de Súria - Sallent)

La presencia de unidades sin-cinemáticas evaporíticas en el relleno sedimentario de las cuencas de antepaís de sistemas orogénicos condiciona el estilo estructural de las estructuras que se desarrollan a medida que la deformación progresa hacia el antepaís. Éstas estructuras pueden ser pliegues de despegue (simétricos o asimétricos) que pueden desarrollar cabalgamientos en sus flancos, y/o pliegues de acomodación o propagación de falla. Una misma estructura puede presentar cambios laterales en el tipo de estructura y en la vergencia, pasando de pliegues de propagación o acomodación en zonas sin sal, a pliegues de despegue en zonas con sal. En esta contribución se presenta la caracterización estructural de la zona de Súria y Sallent (Catalunya Central), al ser un buen ejemplo para comprender las estructuras contractivas asociadas a la terminación de un nivel evaporítico sincontractivo (Fm. Cardona, Priaboniense), caracterizado por variaciones laterales de espesor y una terminación no lineal. Para analizar el papel de estos factores, se han integrado datos de superficie (mapas geológicos y datos de campo) y subsuelo (sísmica y pozos) para obtener un modelo estructural 3D de la zona que permite una mejor caracterización de la geometría y evolución de estas estructuras asociadas al nivel de despegue. Los resultados obtenidos permiten inferir que las estructuras pueden estar controladas por: 1) su distancia respecto a la terminación del nivel evaporítico y 2) por sus variaciones de potencia laterales posiblemente condicionadas por la paleogeografía del margen de la cuenca durante su deposición. Ambos factores controlan el volumen de sal disponible para alimentar el crecimiento de estos pliegues de despegue y condicionar su evolución lateral y el tipo de estructura resultant

Effect of remote ischaemic conditioning on clinical outcomes in patients with acute myocardial infarction (CONDI-2/ERIC-PPCI): a single-blind randomised controlled trial.

BACKGROUND: Remote ischaemic conditioning with transient ischaemia and reperfusion applied to the arm has been shown to reduce myocardial infarct size in patients with ST-elevation myocardial infarction (STEMI) undergoing primary percutaneous coronary intervention (PPCI). We investigated whether remote ischaemic conditioning could reduce the incidence of cardiac death and hospitalisation for heart failure at 12 months. METHODS: We did an international investigator-initiated, prospective, single-blind, randomised controlled trial (CONDI-2/ERIC-PPCI) at 33 centres across the UK, Denmark, Spain, and Serbia. Patients (age >18 years) with suspected STEMI and who were eligible for PPCI were randomly allocated (1:1, stratified by centre with a permuted block method) to receive standard treatment (including a sham simulated remote ischaemic conditioning intervention at UK sites only) or remote ischaemic conditioning treatment (intermittent ischaemia and reperfusion applied to the arm through four cycles of 5-min inflation and 5-min deflation of an automated cuff device) before PPCI. Investigators responsible for data collection and outcome assessment were masked to treatment allocation. The primary combined endpoint was cardiac death or hospitalisation for heart failure at 12 months in the intention-to-treat population. This trial is registered with ClinicalTrials.gov (NCT02342522) and is completed. FINDINGS: Between Nov 6, 2013, and March 31, 2018, 5401 patients were randomly allocated to either the control group (n=2701) or the remote ischaemic conditioning group (n=2700). After exclusion of patients upon hospital arrival or loss to follow-up, 2569 patients in the control group and 2546 in the intervention group were included in the intention-to-treat analysis. At 12 months post-PPCI, the Kaplan-Meier-estimated frequencies of cardiac death or hospitalisation for heart failure (the primary endpoint) were 220 (8·6%) patients in the control group and 239 (9·4%) in the remote ischaemic conditioning group (hazard ratio 1·10 [95% CI 0·91-1·32], p=0·32 for intervention versus control). No important unexpected adverse events or side effects of remote ischaemic conditioning were observed. INTERPRETATION: Remote ischaemic conditioning does not improve clinical outcomes (cardiac death or hospitalisation for heart failure) at 12 months in patients with STEMI undergoing PPCI. FUNDING: British Heart Foundation, University College London Hospitals/University College London Biomedical Research Centre, Danish Innovation Foundation, Novo Nordisk Foundation, TrygFonden

Responses of native and non-native Mojave Desert winter annuals to soil disturbance and water additions

Habitat modification (i.e., disturbance) and resource availability have been identified as possible mechanisms that may influence the invasibility of plant communities. In the Mojave Desert, habitat disturbance has increased dramatically over the last 50 years due to increased human activities. Additionally, water availability is considered to be a main limiting resource for plant production. To elucidate the effects of soil disturbance and water availability on plant invasions, we created experimental patches where we varied the levels of soil disturbance and water availability in a fully crossed factorial experiment at five replicated field sites, and documented responses of native and non-native winter annuals. The treatments did not significantly affect the density (seedlings m−2) of the non-native forb, Brassica tournefortii. However, the relationship between silique production and plant height differed among treatments, with greater silique production in disturbed plots. In contrast toBrassica, density of the non-native Schismus spp. increased in soil disturbed and watered plots, and was greatest in disturbed plots during 2009 (the second year of the study). Species composition of the native annual community was not affected by treatments in 2008 but was influenced by treatments in 2009. The native forb Eriophyllum sp. was most dense on water-addition plots, while density of Chaenactis freemontii was highest in disturbed plots. Results illustrate that habitat invasibility in arid systems can be influenced by dynamics in disturbance regimes and water availability, and suggest that invasiveness can differ between non-native annual species and among native annuals in habitats undergoing changing disturbance and precipitation regimes. Understanding the mechanistic relationships between water availability and non-native plant responses will be important for understanding the effects of shifting precipitation and vegetation patterns under predicted climate change in arid ecosystems

Optimization of the efficiency of PhD students by employing cavity magnetrons

Trabajo presentado en el IFISC Poster Party (online).-- The IFISC Poster Party is an annual activity where PhD students and postdoctoral researchers of IFISC present their research in a poster format.-- Dynamics and Collective Phenomena in Social and Socio-technical Systems.Peer reviewe

The PICTURE study -- prostate imaging (multi-parametric MRI and Prostate HistoScanning™) compared to transperineal ultrasound guided biopsy for significant prostate cancer risk evaluation.

OBJECTIVE: The primary objective of the PICTURE study is to assess the negative predictive value of multi-parametric MRI (mp-MRI) and Prostate HistoScanning™ (PHS) in ruling-out clinically significant prostate cancer. PATIENTS AND METHODS: PICTURE is a prospective diagnostic validating cohort study conforming to level 1 evidence. PICTURE will assess the diagnostic performance of multi-parametric Magnetic Resonance Imaging (mp-MRI) and Prostate HistoScanning™ (PHS) ultrasound. PICTURE will involve validating both index tests against a reference test, transperineal Template Prostate Mapping (TPM) biopsies, which can be applied in all men under evaluation. Men will be blinded to the index test results and both index tests will be reported prospectively prior to the biopsies being taken to ensure reporter blinding. Paired analysis of each of the index tests to the reference test will be done at patient level. Those men with an imaging lesion will undergo targeted biopsies to assess the clinical utility of sampling only suspicious areas. The study is powered to assess the negative predictive value of these imaging modalities in ruling-out clinically significant prostate cancer. DISCUSSION: The PICTURE study aims to assess the performance characteristics of two imaging modalities (mp-MRI and Prostate HistoScanning) for their utility in the prostate cancer pathway. PICTURE aims to identify if either imaging test may be useful for ruling out clinically significant disease in men under investigation, and also to examine if either imaging modality is useful for the detection of disease. Recruitment is underway and expected to complete in 2014