Adaptive Multilooking for Long Term Monitoring of Critical Infrastructure

Efficient long term monitoring of critical infrastructure is a difficult task, due to the presence of decorrelation artifacts, especially in non-urban areas. This tends to be an important drawback, given the errors that appear during the unwrapping phase, leading to unreliable deformation maps. The minimization of the artifacts’ influence is performed by enhancing the phase estimate using a spatially adaptive multi-looking algorithm. Subsequently, a deformation estimation of linear motions is performed using a stacking-based approach. Results are presented on a database of 32 SLC SM TerraSAR-X images acquired over the area of Bucharest, Romania

Multi-set analysis Of platform influence on density and quality of Persistent Scatterers: A case study for Bucharest area

During the past years, SAR techniques like Persistent Scatterer Interferometry (PSInSAR) have provided hyper-precision sensing at very large spatial scales. The continuous improvement in the quality of PS measurements comes from the constant development of new acquisition geometries embedded in various platforms. In this study we make a comparative assessment of the quality, number and density of Persistent Scatterers obtained using data acquired in different geometric configurations implemented on three platforms - ERS, ENVISAT, TerraSAR-X. All results were obtained by considering individual datasets of the same urban area (Bucharest), with a combined period of acquisitions of 22 years. The analysis is performed in terms of incidence angles, baseline, orbit type, look direction and PS dynamic range

Skin Lesions with Loss of Tissue and Cutaneous-Onset Sepsis: The Skin Infection–Sepsis Relationship

Infectious and inflammatory dermatoses featuring skin lesions with loss of tissue expose skin layers to microbial invasions, disrupt the normal skin microbiome, and potentially lead to sepsis. However, literature data on the incidence of cutaneous-onset sepsis are scarce. This retrospective observational study assessed hospital admissions for primary skin lesions without bacterial infections and sepsis during 2020–2022 in the largest emergency hospital in NE Romania. Of 509 patients, 441 had infected lesions, 78 had sepsis caused by venous ulcers from microbial eczema cellulitis, superinfected bullous dermatoses, erysipelas, and erythroderma. Cultured samples revealed S. aureus, P. aeruginosa, and E. coli; and K. pneumoniae and S. β-hemolytic associated with sepsis, even if this was rarer. Clinical manifestations included ulcerations, erosions, fissures, excoriations, bullae, vesicles, pruritus, tumefaction, edema, fever, chills, pain, adenopathy, and mildly altered mental status. Underlying chronic heart failure, atrial fibrillation, anemia, and type-1 diabetes mellitus were comorbidities associated with infection and sepsis. Significant associations and risk factors, including their combined effects, are discussed to draw attention to the need for further research and adequate management to prevent sepsis in adult patients of any age presenting with infected skin lesions (especially cellulitis) and comorbidities (especially type 1 diabetes mellitus and anemia)