APHRODITE: Design and Preliminary Tests of an Autonomous and Reusable Photo-sensing Device for Immunological Test aboard the International Space Station

Preliminary results of the design and manufacturing of APHRODITE, a compact and versatile device for carrying out analyses of biological fluids during space missions that will be used as a technological demonstrator on board the International Space Station (ISS) for the quantitative determination of salivary biomarkers indicators of alterations of functionality of the immune system. The paper addresses the design of the main subsystems of the analytical device and the preliminary results obtained during the first implementations of the device subsystems and testing measurements. In particular, the system design and the experiment data output of the lab-on-chip photosensors and of the front-end readout electronics are reported in detail

A water-filled garment to protect astronauts during interplanetary missions tested on board the ISS

Abstract As manned spaceflights beyond low Earth orbit are in the agenda of Space Agencies, the concerns related to space radiation exposure of the crew are still without conclusive solutions. The risk of long-term detrimental health effects needs to be kept below acceptable limits, and emergency countermeasures must be planned to avoid the short-term consequences of exposure to high particle fluxes during hardly predictable solar events. Space habitat shielding cannot be the ultimate solution: the increasing complexity of future missions will require astronauts to protect themselves in low-shielded areas, e.g. during emergency operations. Personal radiation shielding is promising, particularly if using available resources for multi-functional shielding devices. In this work we report on all steps from the conception, design, manufacturing, to the final test on board the International Space Station (ISS) of the first prototype of a water-filled garment for emergency radiation shielding against solar particle events. The garment has a good shielding potential and comfort level. On-board water is used for filling and then recycled without waste. The successful outcome of this experiment represents an important breakthrough in space radiation shielding, opening to the development of similarly conceived devices and their use in interplanetary missions as the one to Mars

Tecnología Blockchain para aseguramiento de evidencia digital en entornos Forensic Readiness

En este proyecto se propuso analizar las prestaciones de la tecnología Blockchain para asegurar la integridad y trazabilidad de la cadena de custodia bajo la metodología Forensic Readiness que, como método preventivo, requiere de estrictas respuestas del entorno tecnológico para resguardar los datos considerados evidencia digital. La prueba de concepto se realizó sobre la Blockchain Federal Argentina que brinda una plataforma multiservicios abierta y participativa para integrar servicios y aplicaciones basada en Ethereum y, por otra parte, sobre el desarrollo Open Source Hyperledger Fabric que es una red permisionada privada, con acceso restringido y donde la identidad de los participantes es conocida. Estos dos entornos se utilizaron sin criptomoneda asociada. Como resultados se ha logrado una comparación de las mismas en cuanto a su perfomance, la respuesta de los algoritmos de consenso, la escalabilidad y la identificación de incidentes de seguridad relacionados con esta tecnología, así como un bosquejo del procedimiento de resguardo de evidencia. &nbsp

Exploring the effectiveness of the Digital Green Certificate Law as Public Health instrument to increase anti-COVID-19 vaccination in a sample of working-age adult population in the Palermo Metropolitan Area

Counteracting vaccine hesitancy should be considered an absolute priority for Public Health Authorities. A correct health communication represents one of the best ways to increase adhesion to vaccination among hesitant population. In order to increase vaccination coverage rates against COVID-19, the Italian government has issued a legislative decree with a mandatory “Digital Green Certificate” (DGC) to access workplaces for some categories considered at risk. Methods. We conducted a cross-sectional study with the aim to highlight the factors associated with the anti-COVID-19 vaccine acceptance and to estimate the influence of the introduction by law of the Digital Green Certificate (DGC) on the adhesion to the COVID-19 vaccination campaign in a sample of individual accessing one of the main vaccination centres of the metropolitan area of Palermo, Italy. An anonymous and validated questionnaire was self-administered through the Google Documents® platform, between October 2021 and March 2022. Results. Among the 467 subjects enrolled, 43.3% were influenced on their vaccination choice by the introduction of the DGC. The multivariate analysis showed that among the respondents emerged contrasting feelings with a self-reported significantly higher sense of freedom (Adj-OR = 2.45, 95%CIs = 1.51-3.97, p-value: < 0.001) but a lower sense of safety (Adj-OR = 0.19, 95%CIs = 0.12-0.29, p-value: < 0.001) after vaccine administration. Conclusions. Our findings, in line with the available literature, suggest that the introduction of DGC has led to a significant increase in the immunization rate and, together with an appropriate communicative approach, it could represent an effective strategy to counteract vaccine hesitancy

Knowledge, attitudes and adherence towards influenza and other vaccinations among healthcare workers at the University Hospital of Palermo, Italy, during the first COVID-19 pandemic season (2020/2021)

Background. Increasing adherence to influenza vaccination among healthcare workers is a public health priority, stated that actually remains far below than international recommendations. During the 2020/2021 pandemic season, COVID-19 vaccines were not yet available until the end of December 2020, and influenza vaccines were the only one available to protect against seasonal respiratory diseases. The main objective of the present study was to assess knowledge, attitudes and adherence to influenza and other vaccinations recommended by the National Immunization Plan 2017-2021 for healthcare workers.Methods. Enrollment lasted from October and December 2020 at the vaccination unit of the University Hospital of Palermo. Data were collected through an anonymous and self-administered questionnaire, divided into 5 sections and 31 items.Results. Among 734 healthcare professionals that completed the survey, a significantly higher adherence to influenza vaccination was observed among healthcare workers that were more prone to receive COVID-19 vaccination (OR=4.02; 95% CI: 1.63-9.91). Moreover, higher influenza vaccination rates were observed among healthcare professionals that received influenza vaccination during previous 2019/2020 season (OR=15.3; 95% CI: 5.17-45.1) and that were favorable to the possible impact on increasing adherence of influenza mandatory vaccination (OR=4.88; 95% CI: 2.43-9.80). Conclusions. Propensity of healthcare workers to undergo vaccinations recommended in the National Immunization Plan increased during the first pandemic season. At the end of the vaccination season, flu vaccination coverage reached highest rates ever at the University Hospital of Palermo (around 60%), remaining anyway below the recommended minimum value of 75%. During next seasonal flu vaccination campaigns, it becomes essential to promote communication and information strategies to increase flu vaccination among healthcare workers, also focusing on co-administration with the anti-COVID-19 booster/ seasonal doses

Pregnancy e-health: a multicenter Italian cross-sectional study on internet use and decision-making among pregnant women

Our study aimed to estimate the prevalence of pregnancy e-health seekers in a large Italian sample; to explore the factors influencing the choices of the childbearing women regarding their lifestyles after internet consultation; and finally to investigate potential differences between primiparous and multiparous women in internet use to find information about pregnancy. Methods A multicentre survey was carried out in seven Italian cities. Data were collected through a validated questionnaire administered in waiting rooms of outpatient departments by medical doctors. Respondents were questioned about their sociodemographic status, their use of the internet to seek pregnancy information and their consequent choices to modify their lifestyles. Data were analysed using descriptive statistics and logistic regression. Results Almost all women were pregnancy e-health seekers (95%), including those who also received information from healthcare professionals. Indeed, the main reason for searching the web was the need of further knowledge on pregnancy-related topic, over and beyond other key advantages of the net such as anonymity, simplicity and rapidity. A higher likelihood of changing lifestyle after pregnancy e-health was observed among the women who searched institutional websites; declared more confidence in the information retrieved; participated into pregnancy-centred forum online; and were residents in Italy. Conclusions To reduce the likelihood for women of both finding erroneous information or misinterpreting correct ones, healthcare professionals should commit to fill the information gap and guide pregnant women in the online searches. Also, future studies are strongly needed to analyse the quality and accuracy of health information found on the web

The PERSEO experience: a water-filled garment prototype for personal radiation protection of astronauts successfully tested on board the International Space Station

The PERSEO project (PErsonal Radiation Shielding for intErplanetary missiOns), funded by the Italian Space Agency, has led to the development of a first technological demonstrator of a radiation shielding garment, to be used in a pressurized space habitat, that can be filled at need with on-board water and used for personal protection in case of solar particle events. The collaboration, including academic partners and companies active in space research and technology development, designed and manufactured the prototype that has been successfully tested on board the International Space Station by the European Space Agency astronaut Paolo Nespoli in November 2017, during the VITA mission. The effectiveness of the garment in terms of reduction of the radiation dose to sensitive organs (subject to the occurrence of short-term non-cancer effects following acute exposure) has been evaluated with Monte Carlo simulations with an anthropomorphic phantom. The successful outcome of the experimental session on board has demonstrated the practicality of use and wearability of the prototype, and, in perspective, the feasibility of a personal radiation shielding strategy, complementary to habitat shielding and based on the use of available resources, of fundamental importance also in view of future manned interplanetary missions