Space Hellas (Greece)

The characterization and identification of possible cryovolcanic activity on Ganymede is key to understanding the evolution and potential habitability of Jupiter’s largest moon. ESA’s JUpiter ICy moons Explorer (JUICE) mission, launched in 2023, will provide the first dedicated, high-resolution investigation of Ganymede’s surface and interior. Before JUICE reaches Jupiter’s system and obtains its first observations of Ganymede, it is essential to reassess previously proposed cryovolcanic regions using a consistent and comparative approach.Based on Voyager and Galileo spectro-imaging, 20 paterae and morphologically distinctive features have been suggested as candidate cryovolcanic regions, yet their geological context and compositional diversity have not been systematically evaluated. In this work, we present a reanalysis of all candidate regions, combining regional geomorphological assessment with comparative near-infrared spectra. Reprocessed Galileo Near-Infrared Mapping Spectrometer (NIMS) data are examined using a uniform linear spectral unmixing framework, with emphasis on relative spectral trends and temperature-dependent behaviour rather than absolute compositional determinations.This data reprocessing and spectral comparisons reveal distinct spectral categories among candidate regions, ranging from ice-dominated terrains to areas exhibiting enhanced non-ice components. When combined with morphological characteristics that are often similar to confirmed cryovolcanic features on other planetary bodies, these groupings suggest that multiple formation and modification processes may be represented, including end-member cases consistent with cryovolcanic resurfacing or brine-related processes.Rather than providing definitive interpretations, this work establishes a pre-JUICE framework for target prioritization and observation planning. We discuss implications for high-resolution imaging and spectroscopy by the JANUS and MAJIS instruments, and how forthcoming JUICE data can discriminate between plausible geological scenarios.

<p>Abstract:Mediterranean coasts have one of the world’s richest concentrations of cultural heritage, yet this legacy is increasingly threatened by sea-level rise (SLR), coastal erosion and storm impacts. Despite a growing number of local and thematic studies, regional syntheses remain scarce. This paper presents a semi-quantitative review of more than sixty peer-reviewed publications and in-stitutional reports (2010–2024) addressing coastal heritage vulnerability in the Mediterranean. Drawing on a harmonised database, each study has been classified by country, heritage type, threat, temporal horizon and methodological approach, and evaluated through standardised se-verity (0–5) and risk (1–3) scales. Results reveal three interrelated dimensions of imbalance—geo-graphical,methodological and temporal. Geographically, a pronounced north–south asymmetry persists: Italy, Spain and Greece concentrate more than half of all studies, while North Africa and the eastern Mediterranean remain under-represented. Methodologically, about45% of works em-ploy DEM-based geospatial modelling, 25% rely on field evidence, and only 10% address manage-ment or policy dimensions. Prospectively, most analyses project impacts to 2100 under high-emis-sion scenarios, with more than 70% of assessed sites showing moderate-to-high vulnerability. Alt-hough comprehensive, the sample is not systematic, and geographic patterns partly reflect differ-ences in research capacity rather than exposure. A critical weakness identified across the literature is the limited transfer of scientific results into usable frameworks for planners and heritage man-agers, underscoring the need for performance and usability assessment in future climate-adapta-tion research. Advancing this field requires standardised indicators, broader regional coverage, and stronger interdisciplinary integration between coastal science, archaeology and heritage manage-ment to inform effective adaptation strategies for safeguarding Mediterranean coastal heritage under accelerating climate change.</p>

WKS 5: Navigating Challenges: Supporting and Strengthening Refugee Aid Workers, Auditório B1 (FCSH), September 3, 2025, 15:45 - 16:45Rationales and PurposeWith ongoing global migration, refugee aid workers (RAWs) operate in high-pressure environments, making critical decisions while navigating systemic barriers, resource constraints, and ethical dilemmas. Often working under unstable conditions, balancing competing needs and witnessing profound suffering, they face chronic stress, burnout, anxiety, depression, and PTSD. These risks can undermine their well-being and, ultimately, the quality of care provided to refugees and migrants. This workshop aims to identify the specific needs of RAWs, foster interprofessional collaboration, and define key priorities and actions to support and strengthen this essential workforce.Workshop ProcessThe workshop will follow a roundtable format. After a brief introduction by the facilitator, panelists—experts from various countries, institutions and international organizations—will share research findings and field experiences on the needs of aid workers supporting displaced populations. A panel discussion will explore necessary actions to address these needs and strengthen the workforce.Participants will then split into three groups for interactive discussions focused on:identifying unmet needs of RAWs;actions required at organizational, institutional, individual, and systemic levels;evidence and support needed to implement these actions and inform decision-making across these levels.The session will conclude with short group presentations and a final wrap-up.Projected Learning OutcomesParticipants will critically reflect on the challenges and needs of RAWs, identify unmet needs and key priorities, and explore collaborative strategies and actions required across multiple levels to strengthen the workforce and support informed decision-making.

We present reduced-clad (RC) Erbium-doped fiber (EDF) gamma radiation testing performed within the scope of developing a very compact, radiation resistant 20 dBm EDFA module. We report passive radiation testing at 50 and 100 krad TID of 3 RC-EDFs. We present bread-board-level characterization with radiation-induced gain drop (RIGD) varying between 1.2 and 4.9 dB at 50 krad and 2.2 and 9.1 dB at 100 krad. We also present the assembly, integration and functional testing of a very compact EDFA prototype, which deploys one of the RC-EDFs. The unit occupies 12.6 cm<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> footprint and weighs < 33 grams. The module hosts pump lasers, isolators, pump/signal combiners and monitor photodiodes. The EDFA delivers 20 dBm output power over a wavelength range of 1530 to 1570 nm at room temperature. We present preliminary thermal results of the EDFA delivering >18 dBm output power when mounted on a hot plate set at temperatures up to 75°C.

Missions are being studied to the systems of outer planets, including extended observation periods by local orbiters or possible landers, that require careful evaluation of the local radiation and plasma environment for design of both platform and science payload. Radiation impact potentially includes total cumulative doses, single event effects from short term enhancements and internal charging risk whilst plasma environments present risks of surface charging. Under the ESA Project TRAPPED (Testbed for Radiation and Plasma Planetary Environments), a consortium comprising ONERA, IRAP, MPS and Academy of Athens has developed a flexible and easy-to-use environment model framework and related software for gas giant planet systems based on the wealth of data from visiting missions. Within this activity, derived specific models for radiation and plasma were developed for the Saturnian system. Here, we will present the TRAPPED framework and more particularly the new specification model for Saturn’s radiation environment. This empirical model based on the last version of Cassini data (LEMMS, CHEMS and INCA) provides electron, proton and water-group ion fluxes in the magnetosphere of Saturn

The progression towards 6 G networks promises enhanced performance but introduces significant security and privacy vulnerabilities, particularly at the network edge. This work presents advancements in PRIVATEER, focusing on AIdriven anomaly detection accelerated on FPGAs and robust security countermeasures for FPGA deployments. We detail an Attention-Autoencoder model for detecting DDoS attacks and evaluate its high-performance, energy-efficient FPGA implementation, achieving $\gt8 \mathrm{x} /\gt9 \mathrm{x}$ latency reduction and $\gt130 \mathrm{x} /\gt30 \mathrm{x}$ energy savings compared to CPU/GPU baselines, respectively, without accuracy loss. Additionally, we discuss security mechanisms including remote attestation, Physical Unclonable Functions (PUFs), and side-channel mitigation, demonstrating their efficacy with low overhead. These results showcase viable solutions for secure, hardware-accelerated AI analytics in future 6 G edge systems.

Candida auris (C. auris) is an emerging fungal pathogen responsible for numerous nosocomial outbreaks worldwide over the past decade. Its resistance to multiple antifungal agents poses a significant challenge in clinical management. In addition, high rates of misdiagnosis and its ability to form biofilms further complicate treatment and control efforts. Immunocompromised patients, particularly those with chronic diseases or invasive medical devices, are at heightened risk. Despite its global prevalence, the true extent of C. auris infections remains uncertain due to several diagnostic challenges. Notably, limited availability of specialized molecular diagnostic tools in resource-limited settings exacerbates the underreporting of infections, leaving the full scope of its impact largely undetected. To investigate the prevalence and impact of C. auris on hemodialysis patients, as well as methods for prevention and management of C. auris infections in hemodialysis units. This review synthesizes data from peer-reviewed journals and clinical studies addressing C. auris epidemiology, diagnostic challenges, resistance patterns, and infection management, with a focus on patients with chronic kidney failure. Data on biofilm behavior, antifungal efficacy, and infection control practices in hemodialysis environments were analyzed to identify existing knowledge gaps. Candida auris infections occur more frequently in males (≈60%) and individuals over 65years of age. The pathogen colonizes various anatomical sites and thrives in hospital settings, withstanding temperatures up to 42°C and salinity levels up to 3%. Diagnostic errors are frequent: conventional biochemical methods misidentify up to 40% of cases, while molecular diagnostics offer ≥ 95% specificity. Existing antifungal lock solutions show limited effectiveness (50-60%), whereas hemodialysis patients are 3-4 times more likely to develop bloodstream infections due to the use of central venous catheters. Novel experimental antifungal combinations yield > 80% eradication rates in preclinical settings. Candida auris presents a significant threat to hemodialysis patients due to its resilience, misdiagnosis rates, and treatment resistance. Actionable recommendations include implementing molecular diagnostics in high-risk settings, developing targeted antifungal lock protocols, and enhancing surface decontamination practices in dialysis units to prevent biofilm formation and pathogen transmission.

ABSTRACT Introduction Treatment-resistant schizophrenia (TRS) significantly impacts patients with schizophrenia, leading to a high disease burden, reduced quality of life, and functional impairment. Many patients fail to respond to standard antipsychotic treatments, requiring specialized therapeutic approaches. Clozapine remains the only approved treatment for patients with TRS, demonstrating effectiveness in reducing symptoms, hospitalizations, and risk of suicide. However, its use is often delayed due to concerns about adverse events, and the need for ongoing monitoring. Areas covered This critical perspective incorporates insights from psychiatrists in Greece and a comprehensive literature analysis that includes clinical guidelines and systematic reviews. It highlights strategies for early diagnosis and timely initiation of clozapine, while emphasizing practical challenges in its use. Recommendations emphasize reducing treatment delays and overcoming barriers such as inadequate training and hesitancy among clinicians. A comprehensive literature search was conducted on PubMed, Google Scholar, and Cochrane Library without any date restrictions to ensure a thorough review of available evidence. The initial literature search was carried out in September 2024, with a subsequent search conducted in March 2025. Expert opinion International guidelines consistently recommend clozapine as the first-line treatment for patients with TRS; nevertheless, the authors advocate enhanced awareness to optimize use. Most adverse events can be effectively managed with proper oversight, and early initiation is crucial to improving remission rates and the quality of life of patients with TRS. There is a need for systemic improvements in clinical practice, which requires evidence-based guidance to better address treatment efficacy in this challenging patient population.