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This work evaluates the effects of economic conditions' variations on the costs and viability of floating photovoltaics, a novel solution where modules are installed on or above water. A sensitivity analysis of key economic criteria is conducted across multiple European countries, first generating country-specific baseline scenarios and then introducing systematic variations into the input parameters. The results show that capital expenditure and electricity prices, which have both experienced significant variations in recent years, have the largest influence on the net present value and the internal rate of return. Similarly, capital expenditure and discount rate are found to be the most influencing factors for the levelized cost of electricity. Overall, this study contributes to the literature by identifying the correlations between the economic variables and the viability of floating photovoltaics. The findings can be used to assess the effectiveness of potential government policies and support mechanisms and to evaluate the viability of this technology under varying national and international economic conditions., Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (© 2024 The Authors.)

Systemic lupus erythematosus is a chronic inflammatory autoimmune disease characterized by autoantibodies specific for highly conserved nuclear antigens, such as double-stranded DNA, histones and ribonuclear proteins. The course of the disease is unpredictable and nine times more common in females. Among the neurological manifestations of collagen vascular diseases is the most commonly recognized and better studied disease. Central nervous system lupus is a serious and potentially treatable illness presenting as difficult diagnostic challenge. This is a case report of a patient that suffered central nervous system manifestations of severe active lupus. Early recognition of this entity is essential to expedite appropriate to treatment and avoid future complications.

Pasteurella multocida a small gram-negative coccobacilli is primarily found as normal flora of cats and dogs. These organisms can cause a variety of infections in humans, usually the result of scratches, bites and licks by percutaneous inoculation of the organism. Most cases of septic arthritis involve a cat or dog bite distal to the involved joint without direct penetrating injury to the joint. On scenarios were Pasteurella infection is suspected within a prosthetic joint, aggressive surgical debridement and/or removal of the prosthesis with intravenous antibiotics is recommended. Prosthetic joint infections secondary to animal bites are an extremely rare complication and few cases have been reported in the literature. This is a case report of a patient that suffered a cat's bite of his right prosthetic knee and against all odd was able to save it without surgical intervention.