Turandot

De cada obra s'ha digitalitzat un programa sencer. De la resta s'han digitalitzat les parts que són diferents.Empresa Juan A. PamiasÒpera de Giacomo Puccini i llibret de Giuseppe Adami i Renato Simon

Circuit-theoretic phenomenological model of an electrostatic gate-controlled bi-SQUID

A numerical model based on a lumped circuit element approximation for a bi-superconducting quantum interference device (bi-SQUID) operating in the presence of an external magnetic field is presented in this paper. Included in the model is the novel ability to capture the resultant behaviour of the device when a strong electric field is applied to its Josephson junctions by utilising gate electrodes. The model is used to simulate an all-metallic SNS (Al-Cu-Al) bi-SQUID, where good agreement is observed between the simulated results and the experimental data. The results discussed in this work suggest that the primary consequences of the superconducting field effect induced by the gating of the Josephson junctions are accounted for in our minimal model; namely, the suppression of the junctions super-current. Although based on a simplified model, our results can potentially help with the task of clarifying the microscopic origin of this effect. Also, the possible applications of this effect regarding the operation of SQUIDs as ultra-high precision sensors, where the performance of such devices can be improved via careful tuning of the applied gate voltages, are discussed at the end of the paper.Comment: 9 pages, 4 figure

Notes on Drosophila suzukii Matsumura (Diptera Drosophilidae): field survey in Tuscany and laboratory evaluation of organic products

Reported for the first time in Italy in 2009, the Spotted Wing Drosophila (SWD), Drosophila suzukii (Matsumura) (Diptera Drosophilidae), has rapidly spread throughout the country, causing serious damage on many fruit crops. The potential of infestation rate by D. suzukii is enormous: the females can complete many generations per year, and are able to attack the fresh, ripe fruit of many hosts by laying eggs under the soft skin; the larvae grow in the fruits and destroy the commercial value of them. The host range of SWD is reportedly wide, including both cultivated (soft fruits, sweet cherry, stone fruits etc…) and wild plants. In 2013, field surveys aimed at monitoring the presence of the insect on Tuscany territory, were regularly carried out: on an important district for the sweet cherry production with differently managed in control, on a biological blueberry orchard and even on other host plants neighboring the samples’ areas. D. suzukii was present in the monitored areas and its numerically large populations and heavy infestations on sweet cherries have shown that the species has settled in these areas. In laboratory tests, labeled organic products and substances of natural origin - in accordance with the requirements of EU regulations which provides for the reduction of chemicals - were evaluated as concern toxicity and residual effect on the pest. As regards effects of direct toxicity, products based on Beauveria bassiana have shown some effectiveness in the control of SWD, other organic products have shown interesting results. The evidences acquired are discussed

Clinical relevance of genetic variants of gonadotrophins and their receptors in controlled ovarian stimulation: a systematic review and meta-analysis

Genotype has been implicated in the outcome of ovarian stimulation. The analysis of patient-specific genotypes might lead to an individualized pharmacogenomic approach to controlled ovarian stimulation (COS). However, the validity of such an approach remains to be established

Star products, duality and double Lie algebras

Quantization of classical systems using the star-product of symbols of observables is discussed. In the star-product scheme an analysis of dual structures is performed and a physical interpretation is proposed. At the Lie algebra level duality is shown to be connected to double Lie algebras. The analysis is specified to quantum tomography. The classical tomographic Poisson bracket is found.Comment: 22 pages, no figure

Attitude of Italian medical oncologists toward palliative care for patients with advanced cancer: results of the SIO project.

The aim of this survey was to describe the attitude of Italian oncologists towards palliative care. A survey on palliative care was carried out among 400 Italian oncologists. Seventy-two percent indicated that the management of patients with advanced stage cancer represents the majority of their practice. They are often involved in the management of pain (78%) and complications of chemotherapy (61%), and frequently, in the treatment of terminal patients (60%). Only 8.5% reported having frequent collaboration with psychiatrists in support of emotional and psychological patients' disturbances. About 40% are often directly involved in the management of existential or spiritual distress. Discussions on euthanasia and assisted suicide, which are illegal in Italy, took place never (68%) or occasionally (27%). Respondents agreed that all oncology centres should have access to palliative care service. These results are in line with those of the European Society of Medical Oncology survey and may be usefully employed to improve the organisation of palliative care

Soil ecosystem functions in a high-density olive orchard managed by different soil conservation practices

The long-term effects of two different soil management practices, natural grass cover (NC) and conservation tillage (CT), on soil functions (carbon sequestration, habitat for organisms, and water movement and retention) were determined in a high-density, mature olive orchard (Olea europaea L. cv. Frantoio) growing in a sandy loam soil (Typic Haploxeralf) in a Mediterranean environment. Ten years after the beginning of the different soil management, soil samples were collected at 0–10 and 10–20 cm depth and at two distances from the trunk, underneath the olive canopy (UC) and in the inter-row (IR). There were no differences in fruit yield, oil yield, and yield efficiency between the two soil management systems during the 2011–2013 period. CT negatively affected soil organic carbon pools (total and humified), but only at the IR position. The distance from the plant did not significantly influence soil structure and hydrological properties, while NC treatment increased water movement and retention. Tillage reduced the microarthropod abundance, in particular Collembola and eu-edaphic forms, which were the most sensitive groups to soil perturbation. We conclude that natural grass cover was more effective than conservation tillage in maintaining or improving elements of soil functionality