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1.
Appl Radiat Isot ; 194: 110704, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-36731392

RESUMO

Core-collapse Supernovae (SNe) are one of the most energetic events in the Universe, during which almost all the star's binding energy is released in the form of neutrinos. These particles are direct probes of the processes occurring in the stellar core and provide unique insights into the gravitational collapse. RES-NOVA will revolutionize how we detect neutrinos from astrophysical sources, by deploying the first ton-scale array of cryogenic detectors made from archaeological lead. Pb offers the highest neutrino interaction cross-section via coherent elastic neutrino-nucleus scattering (CEνNS). Such process will enable RES-NOVA to be equally sensitive to all neutrino flavours. For the first time, we propose the use archaeological Pb as sensitive target material in order to achieve an ultra-low background level in the region of interest (O(1 keV)). All these features make possible the deployment of the first cm-scale neutrino telescope for the investigation of astrophysical sources. In this contribution, we will characterize the radiopurity level and the performance of a small-scale proof-of-principle detector of RES-NOVA, consisting in a PbWO4 crystal made from archaeological-Pb operated as cryogenic detector.

2.
Appl Radiat Isot ; 193: 110681, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-36669266

RESUMO

Next-generation experiments searching for rare events must satisfy increasingly stringent requirements on the bulk and surface radioactive contamination of their active and structural materials. The measurement of surface contamination is particularly challenging, as no existing technology is capable of separately measuring parts of the 232Th and 238U decay chains that are commonly found to be out of secular equilibrium. We will present the results obtained with a detector prototype consisting of 8 silicon wafers of 150 mm diameter instrumented as bolometers and operated in a low-background dilution refrigerator at the Gran Sasso Underground Laboratory of INFN, Italy. The prototype was characterized by a baseline energy resolution of few keV and a background <100 nBq/cm2 in the full range of  α energies, obtained with simple procedures for cleaning of all employed materials and no specific measures to prevent recontamination. Such performance, together with the modularity of the detector design, demonstrate the possibility to realize an alpha detector capable of separately measuring all alpha emitters of the 232Th and 238U chains, possibly reaching a sensitivity of few nBq/cm2.

3.
Phys Rev Lett ; 129(22): 222501, 2022 Nov 23.
Artigo em Inglês | MEDLINE | ID: mdl-36493444

RESUMO

The Cryogenic Underground Observatory for Rare Events (CUORE) at Laboratori Nazionali del Gran Sasso of INFN in Italy is an experiment searching for neutrinoless double beta (0νßß) decay. Its main goal is to investigate this decay in ^{130}Te, but its ton-scale mass and low background make CUORE sensitive to other rare processes as well. In this Letter, we present our first results on the search for 0νßß decay of ^{128}Te, the Te isotope with the second highest natural isotopic abundance. We find no evidence for this decay, and using a Bayesian analysis we set a lower limit on the ^{128}Te 0νßß decay half-life of T_{1/2}>3.6×10^{24} yr (90% CI). This represents the most stringent limit on the half-life of this isotope, improving by over a factor of 30 the previous direct search results, and exceeding those from geochemical experiments for the first time.


Assuntos
Granisetron , Meia-Vida , Teorema de Bayes
4.
J Cancer Policy ; 29: 100297, 2021 09.
Artigo em Inglês | MEDLINE | ID: mdl-34316437

RESUMO

Policymakers everywhere struggle to introduce therapeutic innovation while controlling costs, a particular challenge for the universal Italian National Healthcare System (SSN), which spends only 8.8% of GDP to care for one of the world's oldest populations. Oncology provides a telling example, where innovation has dramatically improved care and survival, transforming cancer into a chronic condition. However, innovation has also increased therapy duration, adverse event management, and service demand. The SSN risks collapse unless centralized cancer planning changes gear, particularly with Covid-19 causing treatment delays, worsening patient prognosis and straining capacity. In view of the 750 billion Euro "Next Generation EU", released by the European Union to relieve Member States hit by the pandemic, the SSN tapped a multidisciplinary research team to identify key strategies for equitable uptake of innovations in treatment and delivery, with emphasis on data-driven technological and managerial advancements - and lessons from Covid-19.


Assuntos
Atenção à Saúde/organização & administração , Planejamento em Saúde/organização & administração , Neoplasias/terapia , Serviços de Saúde Comunitária , Redes Comunitárias , Humanos , Itália/epidemiologia , Atenção Primária à Saúde , Mecanismo de Reembolso , Telemedicina
5.
Eur J Health Econ ; 3(2): 125-30, 2002.
Artigo em Inglês | MEDLINE | ID: mdl-15609136

RESUMO

We assessed the descriptive part of the EQ-5D system in rehabilitation patients with validity severe moving disorders and compared it with the FIM and the SF-36 Health Survey in a sample of 60 patients. We analyzed the EQ-5D convergent validity and the correlations between EQ-5D scores and a clinical variables. The internal validity of the EQ-5D instrument proved good. Moreover, the EQ-5D discriminated symptom severity as scored by the FIM and the SF-36 correspondent subscales. We analyzed the sensitivity of the EQ-5D only with respect to the ability of patients to move with or without a wheelchair. Most patients considered "moving a wheelchair" as a good way of "getting about." This investigation can be considered a pilot study on the performance of the EQ-5D in a group of pathologies involving various degrees of movement disorders. The findings show possible problems of misinterpretation in the levels of the mobility dimension.

6.
Epidemiol Prev ; 24(6): 262-9, 2000.
Artigo em Italiano | MEDLINE | ID: mdl-11219203

RESUMO

Quality of Life (QoL) instruments are often considered similar, since they all concern subjective health state valuations. Actually, among the set of QoL scales, it is possible to distinguish two approaches, different in terms of both goals and tools. The clinical approach elicits functional limitations as perceived by patients, the economic approach is aimed at solving allocation problems generated by scarsity of resources. The major goal of this article is to analyse the economic approach to health state subjective valuation. By using QoL questionnaires, economists attempt to set up quantitative indexes which can value any kind of health outcome. Thus the economic approach seems to be more ambitious than the clinical one. However, the results so far achieved are quite disappointing, especially if compared to those of the clinical approach. In particular, economic scales still suffer a general lack of validation, due to the scarcity of studies conducted on relevant samples. Accordingly, indexes now available seem to require substantial revision. In general, further significant efforts seem necessary to improve the methodology inside the field of HRQoL measures. Integrating the two approaches, as recently attempted, could be a sound strategy.


Assuntos
Indicadores Básicos de Saúde , Qualidade de Vida , Atitude Frente a Saúde , Humanos , Avaliação de Resultados em Cuidados de Saúde , Satisfação do Paciente , Anos de Vida Ajustados por Qualidade de Vida , Reprodutibilidade dos Testes , Sensibilidade e Especificidade , Inquéritos e Questionários , Valor da Vida
7.
Value Health ; 3(4): 270-6, 2000.
Artigo em Inglês | MEDLINE | ID: mdl-16464191

RESUMO

OBJECTIVES: To investigate how indirect costs are evaluated in pharmacoeconomic studies in Italy and the attitude of Italian pharmacoeconomists toward indirect costs. METHODS: A literature review was conducted, specifically focused on pharmacoeconomic studies including indirect costs carried out in Italy, and a suevey among Italian pharmacoeconomics experts. RESULTS: Nineteen studies were available for review. Although the methods used to calculate the value of production loss due to morbidity were all based on the Human Capital Approach (HCA), there was a wide variability among studies in practical methods. The parameters used to value production losses varied widely too. Of the 25 survey responders, 20 considered it important to include indirect costs in pharmacoeconomic studies; 56% of those interviewed stated that health authorities should require indirect cost evaluations. Most of these experts would include indirect cost estimates in drug-pricing calculation. CONCLUSIONS: In Italy studies evaluating indirect costs are still only few, although there is evidence of an increase. Italian pharmacoeconomists are far from reaching any consensus on methods for evaluating these costs. Methods need to be standardized particularly with respect to the parameters used to quantify productive time lost in monetary terms.

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