Zero-bias anomaly in disordered wires

We calculate the low-energy tunneling density of states $\nu(\epsilon, T)$ of an $N$-channel disordered wire, taking into account the electron-electron interaction non-perturbatively. The finite scattering rate $1/\tau$ results in a crossover from the Luttinger liquid behavior at higher energies, $\nu\propto\epsilon^\alpha$, to the exponential dependence $\nu (\epsilon, T=0)\propto \exp{(-\epsilon^*/\epsilon)}$ at low energies, where $\epsilon^*\propto 1/(N \tau)$. At finite temperature $T$, the tunneling density of states depends on the energy through the dimensionless variable $\epsilon/\sqrt{\epsilon^* T}$. At the Fermi level $\nu(\epsilon=0,T) \propto \exp (-\sqrt{\epsilon^*/T})$.Comment: 5 pages, 1 figur

Statewide implementation of the cardiac arrest registry to enhance survival in Ohio

Objective: Public health surveillance is essential for improving community health. The Cardiac Arrest Registry to Enhance Survival (CARES) is a surveillance system for out-of-hospital cardiac arrest (OHCA). We describe results of the organized statewide implementation of Ohio CARES. Methods: We performed a retrospective analysis of CARES enactment in Ohio. Key elements included: establishment of statewide leadership, appointment of a dedicated coordinator, conversion to a statewide subscription, statewide dissemination of information, fundraising from internal and external stakeholders, and conduct of resuscitation academies. We identified all adult (≥18 years) OHCA reported in the registry during 2013–2020. We evaluated OHCA characteristics before (2013–2015) and after (2016–2019) statewide implementation using chi-square test. We evaluated trends in OHCA outcomes using the Cochran-Armitage test of trend. Results: Statewide CARES promotion increased participation from 2 (urban) to 136 (129 urban, 7 rural) EMS agencies. Covered population increased from 1.2 M (10% of state) to 4.8 M (41% of state). After statewide implementation, OHCA populations increased male (58.1% vs 60.8%, p < 0.01), white (50.1% vs 63.7%, p < 0.01), bystander witnessed (26.9% vs 32.9%, p < 0.01) OHCAs. Bystander CPR (34.7% vs 33.2%, p = 0.22), bystander AED (13.5% vs 12.3%, p = 0.55) and initial rhythm (shockable 18.0% vs 18.3%, p = 0.32) did not change. From 2013 to 2019 there were temporal increases in ROSC (29.7% to 31.9%, p-trend = 0.028), survival (7.4% to 12.3%, p-trend < 0.001) and survival with good neurologic outcome (5.6% to 8.6%, p-trend = 0.047). Conclusion: The organized statewide implementation of CARES in Ohio was associated with marked increases in community uptake and concurrent observed improvements in patient outcomes. These results highlight key lessons for community-wide fostering of OHCA surveillance

HERRAMIENTA MULTICRITERIO BASADA EN FUNCIONALIDADES SIG PARA LA IDENTIFICACIÓN POTENCIAL DE ÁREAS DE RIEGO EN ARGENTINA

[EN] In 2014 FAO ordered Tragsatec the design and development of a decision making tool for locating potential areas to be put under irrigation in Argentina. During the first phase, there was a proposal of some goals and indicators based on the sustainability of 5 key issues (technical-agronomic, environmental, economic, social and institutional). After the collection of maps, tables and studies sent from Argentina, these data were treated to be used as a material capable of establishing a prioritization for the development of irrigation based on a potential rate of irrigation (IPR). This rate is a number between 0 and 1 which has been used to set a common legend as much for the source raster layers as for the resulting maps. Once the tool functionality in an Arcmap interface was checked, all 5 thematic layer crosses were carried on to assess the relevance of the results. Subsequently, multi-criteria combinations were tested too. To conclude, a series of conclusions and recommendations on the use of a multiparameter computer tool for irrigation planning are anticipated.[ES] La FAO encargó a Tragsatec el diseño y desarrollo de una herramienta para la identificación de áreas potenciales de riego en Argentina en noviembre de 2013. En una primera fase se propusieron objetivos e indicadores basados en la sostenibilidad de 5 bloques temáticos (técnico-agronómico, ambiental, económico, social e institucional). Tras la recopilación de mapas, tablas y estudios enviados desde Argentina, estos datos se trataron para su uso como material capaz de establecer una priorización para la puesta en riego basado en un índice potencial de riego (IPR). Este IPR es un número entre 0 y 1 que se ha utilizado para establecer una leyenda común tanto para capas raster originales como a resultados. Una vez establecida la funcionalidad de la herramienta en un entorno Arcmap se realizaron los 5 cruces temáticos para valorar la pertinencia de los resultados. Posteriormente, se probaron combinaciones multicriterio. Se plantean una serie de conclusiones y recomendaciones sobre el uso de una herramienta informática multiparamétrica para la planificación de regadío.Hidalgo García, M.; Loyola, L.; López, C.; Zunino, F.; Valle Vila, B.; San Sebastián Sauto, J.; Hierro Rodríguez, R. (2015). HERRAMIENTA MULTICRITERIO BASADA EN FUNCIONALIDADES SIG PARA LA IDENTIFICACIÓN POTENCIAL DE ÁREAS DE RIEGO EN ARGENTINA. En XXXIII CONGRESO NACIONAL DE RIEGOS. Valencia 16-18 junio de 2015. Editorial Universitat Politècnica de València. https://doi.org/10.4995/CNRiegos.2015.1509OC