Testing fundamental physical principles with entangled neutral KK mesons

The neutral kaon doublet is one of the most intriguing systems in nature. En- tangled pairs of neutral K mesons produced in ϕ -meson decays offer a unique possibility to perform important tests of fundamental discrete symmetries as well as of basic principles of quantum mechanics.This paper will focus on a novel method to perform direct T and CPT symmetry tests exploiting the Einstein-Podolsky-Rosen correlations of neutral kaon pairs produced at a ϕ -factory. The statistical significance of the test achievable with the KLOE-2 experiment at DAΦNE, the Frascati ϕ -factory, is also briefly discussed

Eating the Mediterranean Style: A Tasty Way for Stroke Prevention☆

Abstract Stroke is a leading cause of death and disability, with high individual, social and economic costs. Diet has been identified as a modifiable risk factor for cardiovascular diseases and stroke in several large epidemiological studies. The evaluation of foods groups and dietary patterns provides a more realistic representation of actual dietary intake, and gives clues to developing guidelines aimed at general population. We review the role of Mediterranean diet, fruit and vegetables, and olive oil consumption, on the risk of stroke and other vascular outcomes. Findings from major studies indicate that, together with a healthy lifestyle, the traditional Mediterranean way of eating, including social and cultural components, and inscribed on the Representative List of the Intangible Cultural Heritage of Humanity by UNESCO, may be considered a cost-effective intervention to reduce the human, social and economic burden of stroke and cardiovascular disease

Nonlocal and nonlinear effects in hyperbolic heat transfer in a two-temperature model

AbstractThe correct analysis of heat transport at nanoscale is one of the main reasons of new developments in physics and nonequilibrium thermodynamic theories beyond the classical Fourier law. In this paper, we provide a two-temperature model which allows to describe the different regimes which electrons and phonons can undergo in the heat transfer phenomenon. The physical admissibility of that model is showed in view of second law of thermodynamics. The above model is applied to study the propagation of heat waves in order to point out the special role played by nonlocal and nonlinear effects

Tests of discrete symmetries in K systems

The status of present experiments and future projects with kaons is reviewed, focusing on prospects for discrete symmetries tests

Testing fundamental physical principles with entangled neutral K mesons

Abstract. The neutral kaon doublet is one of the most intriguing systems in nature. Entangled pairs of neutral K mesons produced in φ-meson decays offer a unique possibility to perform important tests of fundamental discrete symmetries as well as of basic principles of quantum mechanics. This paper will focus on a novel method to perform direct T and CPT symmetry tests exploiting the Einstein-Podolsky-Rosen correlations of neutral kaon pairs produced at a φ-factory. The statistical significance of the test achievable with the KLOE-2 experiment at DAΦNE, the Frascati φ-factory, is also briefly discussed

AFLP analysis to assess genomic stability in Solanum regenerants derived from wild and cultivated species

The cultivated potato as well as its tuber-bearing relatives are considered model plants for cell and tissue culture, and therefore for exploiting the genetic variation induced by in vitro culture. The association between molecular stability and tissue culture in different genetic backgrounds and ploidy levels has already been explored. However, it still remains to be ascertained whether somaclonal variation differs between callus-derived chromosome- doubled and undoubled regenerants. Our research aimed at investigating, through amplified fragment length polymorphism (AFLP) markers, the genetic changes in marker- banding patterns of diploid and tetraploid regenerants obtained from one clone each of Solanum bulbocastanum Dunal and S. cardiophyllum Lindl (both 2n = 2x = 24) and tetraploids from cultivated S. tuberosum L. (2n = 4x = 48). Pairwise comparisons between the banding patterns of regenerants and parents allowed detecting considerable changes associated to in vitro culture both at diploid and tetraploid level. The percentages of polymorphic bands between diploid and tetraploid regenerants were, respectively, 57 and 69% in S. bulbocastanum and 58 and 63% in S. cardiophyllum. On average, the frequencies of lost parental fragments in regenerants were significantly higher than novel bands both in S. bulbocastanum (48 vs. 22%) and S. tuberosum (36 vs. 18%) regenerants. By contrast, in S. cardiophyllum, a similar incidence of the two events was detected (32 vs. 29%). Our results revealed that structural changes after tissue culture process strongly affected the genome of the species studied, but diploid and tetraploids regenerated plants responded equally

Definição de um ambiente data warehouse em uma instituição de ensino superior

Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro TecnológicoO objetivo deste trabalho é propor uma metodologia para o desenvolvimento de um ambiente Data Warehouse, voltado a uma Instituição de Ensino Superior (IES). A proposta tem bases no estudo das diferentes formas organizacionais de IES e na identificação dos respectivos níveis decisórios. O resultado do trabalho é a proposta de uma metodologia de implantação do Data Warehouse da IES, segundo a arquitetura bottom-up de construção de Data Marts, centrada nos diferentes níveis organizacionais e decisórios da empresa. A metodologia foi aplicada na Universidade do Oeste de Santa Catarina - UNOESC Chapecó, resultando em um modelo de DW para a instituição, testado em um sistema OLAP sobre os processos de trancamento e conceitos por cursos da universidad

Interspecific somatic hybrids between Solanum bulbocastanum and S. tuberosum and their haploidization for potato breeding.

Protoplast fusion between incongruent Solanum bulbocastanum and S. tuberosum haploids was accomplished to produce hybrids combining elite traits from both parents. We identified 11 somatic hybrids out of 42 regenerants analyzed through ISSR markers. Some hybrids had loss or gain of fragments compared to the parents, likely due to rearrangements and deletions of chromosome segments after fusion, and/or to somaclonal variation during hybrid regeneration. Increased heterotic vigor for some traits as well as high diversity was observed as the effect of both ploidy and fusion combination. Microsporogenesis analysis indicated the occurrence of multivalent configurations and several meiotic abnormalities, such as chromosomes bridges and various spindle orientations. Since all hybrids were sterile, in vitro anther culture was employed for haploidization as a possible strategy to overcome barriers to hybridizations. Haploids were obtained from all the tetraploid S. bulbocastanum (+) S. tuberosum somatic hybrids tested, although with differences in both the number of embryos per 100 anthers cultured and the number of differentiated green plantlets. This is the first report on the successful production of haploid plants from S. bulbocastanum (+) S. tuberosum hybrids

Systematic Human Reliability Analysis (SHRA): A New Approach to Evaluate Human Error Probability (HEP) in a Nuclear Plant

Emergency management in industrial plants is a fundamental issue to ensure the safety of operators. The emergency management analyses two fundamental aspects: the system reliability and the human reliability. System reliability is the capability of ensuring the functional properties within a variability of work conditions, considering the possible deviations due to unexpected events. However, system reliability is strongly related to the reliability of its weakest component. The complexity of the processes could generate incidental situations and the worker appears (human reliability) to be the weakest part of the whole system. The complexity of systems influences operator's ability to take decisions during emergencies. The aim of the present research is to develop a new approach to evaluate human error probability (HEP), called Systematic Human Reliability Analysis (SHRA). The proposed approach considers internal and external factors that affect operator's ability. The new approach is based on Nuclear Action Reliability Assessment (NARA), Simplified Plant Analysis Risk Human Reliability (SPAR-H) and on the Performance Shaping Factors (PSFs) relationship. The present paper analysed some shortcomings related to literature approaches, especially the limitations of the working time. We estimated HEP, after 8 hours (work standard) during emergency conditions. The correlations between the advantages of these three methodologies allows proposing a HEP analysis during accident scenarios emergencies. SHRA can be used to estimate human reliability during emergencies. SHRA has been applied in a nuclear accident scenario, considering 24 hours of working time. The SHRA results highlight the most important internal and external factors that affect operator's ability