Technical Note 9 – Athena filters: conclusion and programmatic

This document summarizes the main results of the activity. The most important aspects related to fabrication of target filters are presented together with their most important characterized properties. Based on the presented results we made few recommendations in the scheme of ATHENA filter planning

TN8 – Athena filters characterization and qualification report

This document is a report of filter characterization tests performed on a set of filter breadboards representative of two of the Athena X-IFU thermal filters, namely the THF2 mounted on the 2K aluminum shield, which is a Faraday cage, at 150 mm from the microcalorimeter focal plane array, and the THF300 the larger and outer thermal filter mounted on the main shield of the cryostat which is also a Faraday cage. Such filter breadboards have undergone the same tests performed on similar filter samples based on the polyimide/Al baseline technology

Final report - Corresponding Task 6: Conclusions and programmatic

This document provides complete description of the work carried out during the activity

Model-based clustering for estimating cetaceans site-fidelity and abundance

Estimating the size of animal populations in a given area is of particular interest in ecological studies on wildlife conservation, and this task is commonly handled via capture-recapture methods. A recent work (Pace et al., 2021) adopts a two-step approach for identifying groups of animals with similar site-fidelity patterns - according to specific metrics - and estimating the abundance of bottlenose dolphins between 2017 and 2020 at the Tiber Estuary (Mediterranean Sea, Rome, Italy). In this work, we aim at simultaneously classifying individuals and estimating their abundance in the study area, by introducing finite mixtures within the Open-Population Jolly-Seber framework. In capture-recapture analyses, finite mixture models allow to account for groups heterogeneity and to reduce the bias in the final abundance estimates (Pledger, 2005)

Capitoline Dolphins: Residency Patterns and Abundance Estimate of Tursiops truncatus at the Tiber River Estuary (Mediterranean Sea)

Periodic assessments of population status and trends to detect natural influences and human effects on coastal dolphin are often limited by lack of baseline information. Here, we investigated for the first time the site-fidelity patterns and estimated the population size of bottlenose dolphins (Tursiops truncatus) at the Tiber River estuary (central Mediterranean, Tyrrhenian Sea, Rome, Italy) between 2017 and 2020. We used photo-identification data and site-fidelity metrics to study the tendency of dolphins to remain in, or return to, the study area, and capture-recapture models to estimate the population abundance. In all, 347 unique individuals were identified. The hierarchical cluster analysis highlighted 3 clusters, labeled resident (individuals encountered at least five times, in three different months, over three distinct years; n = 42), part-time (individuals encountered at least on two occasions in a month, in at least two different years; n = 73), and transient (individuals encountered on more than one occasion, in more than 1 month, none of them in more than 1 year; n = 232), each characterized by site-fidelity metrics. Open POPAN modeling estimated a population size of 529 individuals (95% CI: 456-614), showing that the Capitoline (Roman) coastal area and nearby regions surrounding the Tiber River estuary represent an important, suitable habitat for bottlenose dolphins, despite their proximity to one of the major urban centers in the world (the city of Rome). Given the high number of individuals in the area and the presence of resident individuals with strong site fidelity, we suggest that conservation plans should not be focused only close to the Tiber River mouths but extended to cover a broader scale of area

Effect of COVID-19-related lockdown on ophthalmic practice in Italy: A report from 39 institutional centers

BACKGROUND/OBJECTIVES: To compare the number of eye surgical procedures performed in Italy in the 2months following the beginning of lockdown (study period) because of COVID-19 epidemic with those performed in the two earlier months of the same year (intra-year control) and in the period of 2019 corresponding to the lockdown (inter-year control).METHODS: Retrospective analysis of surgical procedures carried out at 39 Academic hospitals. A distinction was made between elective and urgent procedures. Intravitreal injections were also considered. Percentages for all surgical procedures and incidence rate ratios (IRR) for rhegmatogenous retinal detachment (RRD) events were calculated. A p value <0.05 was considered significant.RESULTS: A total of 20,886 versus 55,259 and 56,640 patients underwent surgery during the lockdown versus intra-and inter-year control periods, respectively. During the lockdown, only 70% of patients for whom an operation/intravitreal injection was recommended, finally underwent surgery; the remaining patients did not attend because afraid of getting infected at the hospital (23%), taking public transportation (6.5%), or unavailable swabs (0.5%). Elective surgeries were reduced by 96.2% and 96.4%, urgent surgeries by 49.7% and 50.2%, and intravitreal injections by 48.5% and 48.6% in the lockdown period in comparison to intra-year and inter-year control periods, respectively. IRRs for RRDs during lockdown dropped significantly in comparison with intra- and inter-year control periods (CI: 0.65-0.80 and 0.61-0.75, respectively, p<0.001 for both).CONCLUSION: This study provides a quantitative analysis of the reduction of eye surgical procedures performed in Italy because of the COVID-19 epidemic

Effect of COVID-19-related lockdown on ophthalmic practice in Italy: A report from 39 institutional centers

BACKGROUND/OBJECTIVES: To compare the number of eye surgical procedures performed in Italy in the 2months following the beginning of lockdown (study period) because of COVID-19 epidemic with those performed in the two earlier months of the same year (intra-year control) and in the period of 2019 corresponding to the lockdown (inter-year control).METHODS: Retrospective analysis of surgical procedures carried out at 39 Academic hospitals. A distinction was made between elective and urgent procedures. Intravitreal injections were also considered. Percentages for all surgical procedures and incidence rate ratios (IRR) for rhegmatogenous retinal detachment (RRD) events were calculated. A p value <0.05 was considered significant.RESULTS: A total of 20,886 versus 55,259 and 56,640 patients underwent surgery during the lockdown versus intra-and inter-year control periods, respectively. During the lockdown, only 70% of patients for whom an operation/intravitreal injection was recommended, finally underwent surgery; the remaining patients did not attend because afraid of getting infected at the hospital (23%), taking public transportation (6.5%), or unavailable swabs (0.5%). Elective surgeries were reduced by 96.2% and 96.4%, urgent surgeries by 49.7% and 50.2%, and intravitreal injections by 48.5% and 48.6% in the lockdown period in comparison to intra-year and inter-year control periods, respectively. IRRs for RRDs during lockdown dropped significantly in comparison with intra- and inter-year control periods (CI: 0.65-0.80 and 0.61-0.75, respectively, p<0.001 for both).CONCLUSION: This study provides a quantitative analysis of the reduction of eye surgical procedures performed in Italy because of the COVID-19 epidemic