472 research outputs found

    Bridging RF-Voltage to coaxial power standard in the 100 MHz range

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    Electromagnetic power standard realized by means of the microcalorimetric technique fails below some MHz because of a reduced sensitivity of the system. This causes a metrological lack in the calibration of coaxial power sensors whose broadband characteristics span from dc up to 50 GHz. However, as coaxial transmission lines admit pseudo potential functions, power meter calibration can be done in term of radio frequency (RF) voltage from dc up to 100 MHz at least. The paper describes how INRIM works around the drawback of the microcalorimeter at low frequencies

    Family History and the Risk of Breast and Gastric Cancer

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    Epidemiologists have used family history, usually of first degree relatives, as a marker for genetic risk, knowing that family history reflects the consequences of genetic susceptibilities, shared environment, and common behaviors. The role of family history on breast and gastric cancer risk has been evaluated in multiple studies. As for breast cancer, informative valid,and precise estimates of the role of family history derive from a reanalysis of individual data from 52 epidemiologicstudies including over 58,000 women with breast cancer and 100,000 controls, which estimated an approximately two fold increased risk for women with family history; the risk increased with the number of affected relatives, decreased with age and was greater the younger the relatives were when their breast cancer was diagnosed. As for gastric cancer, a meta-analysis published in 2018 and based on 36 case-control and 4 cohort studies found a significant pooled relative risk of about 2; in line with that, a subsequent analysis based on individ-ual participant data from 17 studies participating in the Stomach cancer Pooling (StoP) Project foundan 80% increased risk in subject with at least on first-degree relative affected by gastriccancer

    Transversity 2008 - Second Worshop on Transverse Polarisation Phenomena in Hard Processes

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    Transversity and transverse spin are one of the presently most debated issues in Hadron Physics. The present Workshop is organized in the frame of a Ministry-funded inter-university Research Project of National Interest (PRIN) specifically dedicated to this aspect and follows the one held in Como in 2005. The members of the project have planned this Workshop to gather together theorists and experimentalists engaged in investigating the nature of transverse spin in hadron physics, with the aim of exchanging up-to-date theoretical and experimental ideas and news on the subject. The Conference will take place in the meeting room of Camera di Commercio of Ferrara, just in front of Castello Estense. On the basis of the previous experience, we are expecting a total of 70-80 participants and plan a number of theoretical and experimental presentations with approximately 40 speakers (by invitation only) and one or two round-table discussions
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