Measurement of Seasonal Variation of Be7 ux with Borexino Experiment and New Observables Sensitive to Matter Effect from Updated Solar Neutrino Global Fit

Universitaà degli Studi dell'Aquila Dipartimento di Scienze Fisiche e Chimiche Scuola di Dottorato in FisicaTese arquivada ao abrigo da Portaria nº 227/2017 de 25 de julh

Hazard function deployment: a QFD-based tool for the assessment of working tasks–a practical study in the construction industry

Despite the efforts made, the number of accidents has not significantly decreased in the construction industry. The main reasons can be found in the peculiarities of working activities in this sector, where hazard analysis and safety management are more difficult than in other industries. To deal with these problems, a comprehensive approach for hazard analysis is needed, focusing on the activities in which a working task is articulated since they are characterized by different types of hazards and thus risk levels. The study proposes a methodology that integrates quality function deployment (QFD) and analytic network process methods to correlate working activities, hazardous events and possible consequences. This provides more effective decision-making, while reducing the ambiguity of the qualitative assessment criteria. The results achieved can augment knowledge on the usability of QFD in safety research, providing a basis for its application for further studies

“Solidarity” and solidarity. Language, activism and social reproduction in the greek crisis

This paper is the first synthesis of ongoing research on three grassroots free health centers for the uninsured in Athens, Greece. It poses two main questions: how and why do individuals mobilize and become health care activists? How do they communicate their choice? This paper claims that health care activism in the observed sites is an exclusionary strategy of social reproduction of the impoverished middle-class and that it takes place, also, through language. Social reproduction is related to four factors: different levels of impact of the crisis among classes; unequal distribution of social, cultural and economic capital; the incorporation of biomedicine and its power structures; and the moral economy of “solidarity”. This paper sketches a genealogy of “solidarity” and uses both ethnography and analytical philosophy to trace its use among activists

A Systems Approach to Selecting and Outfitting a Helicopter for Airborne Law Enforcement

A modern day airborne law enforcement helicopter is an exercise in compromise. Applying a Systems Engineering approach to selecting and outfitting a helicopter for airborne law enforcement can bring order to the process. The Suffolk County Police Aviation Section of New York was used as an example agency profile in analyzing mission requirements, establishing constraints, and analyzing alternatives. A benchmark survey was established for use in comparison. Benchmark trends indicated power margin and useful load as the primary performance requirements of an airborne platform with a primary mission of Emergency Medical Service (EMS) and a secondary mission of patrol. EMS requirements indicated the optimal airframe was a twin engine, while optimal for the patrol mission was single engine. Lack of mission systems integration with the airframe was the largest deficiency cited with reference to equipment. Thorough analysis of interfaces identified areas of systems integration that required special consideration. Current fleet deficiencies in power margin and useful load may be the result of over-laden aircraft, as opposed to underpowered airframes. Distinctions were made between goals and requirements. Analysis of subsystems resulted in suggestions of reduced mission profile weights for performance gains. Alternatives were examined by developing a grid analysis tool. A need was established for professional training of locallevel airborne law enforcement personnel in systems test and evaluation

The Equations of Singular Loci of Ample Divisors on (Subvarieties of) Abelian Varieties

In this paper we consider ideal sheaves associated to the singular loci of a divisor in a linear system $|L|$ of an ample line bundle on a complex abelian variety. We prove an effective result on their (continuous) global generation, after suitable twists by powers of $L$. Moreover we show that similar results hold for subvarieties of a complex abelian variety.Comment: 9 pages, no figure

Guidelines for reporting and analysing laboratory test results for biomass cooking stoves

One of the key challenges in the evaluation of Improved Cooking Stoves (ICSs) performance is the correct interpretation of test results. Indeed, a large amount of the reports or studies in the literature provide results that do not allow drawing any statistically significant conclusion, thus leading to possible misinterpretations. These Guidelines are conceived as a support to all the actors involved in sector of biomass stoves performance evaluation, from the technicians and researchers engaged in laboratory testing, to those who need to better understand and interpret test results in order to select a promising stove model for field trials. The concepts and the methodology here proposed draw upon the most recent studies in the scientific literature on this topi

What is redundant and what is not? Computational trade-offs in modelling to generate alternatives for energy infrastructure deployment

Given the urgent need to devise credible, deep strategies for carbon neutrality, approaches for `modelling to generate alternatives' (MGA) are gaining popularity in the energy sector. Yet, MGA faces limitations when applied to state-of-the-art energy system models: the number of alternatives that can be generated is virtually infinite; no realistic computational effort can discover the complete technology and spatial diversity. Here, based on our own SPORES method, a highly customisable and spatially-explicit advancement of MGA, we empirically test different search strategies - including some adapted from other MGA approaches - with the aim of identifying how to minimise redundant computation. With application to a model of the European power system, we show that, for a fixed number of generated alternatives, there is a clear trade-off in making use of the available computational power to unveil technology versus spatial diversity of system configurations. Moreover, we show that focussing on technology diversity may fail to identify system configurations that appeal to real-world stakeholders, such as those in which capacity is more spread out at the local scale. Based on this evidence that no feasible alternative can be deemed redundant a priori, we propose to initially search for options in a way that balances spatial and technology diversity; this can be achieved by combining the strengths of two different strategies. The resulting solution space can then be refined based on the feedback of stakeholders. More generally, we propose the adoption of ad-hoc MGA sensitivity analyses, targeted at testing a study's central claims, as a computationally inexpensive standard to improve the quality of energy modelling analyses

Ergodicity in randomly perturbed quantum systems

The theoretical cornerstone of statistical mechanics is the ergodic assumption that all accessible configurations of a physical system are equally likely. Here we show how such property arises when an open quantum system is continuously perturbed by an external environment effectively observing the system at random times while the system dynamics approaches the quantum Zeno regime. In this context, by large deviation theory we analytically show how the most probable value of the probability for the system to be in a given state eventually deviates from the non-stochastic case when the Zeno condition is not satisfied. We experimentally test our results with ultra-cold atoms prepared on an atom chip.Comment: 6 pages, 5 figure