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Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which causes coronavirus disease 2019 (COVID-19), has emerged as a serious threat to human health worldwide. The effective disinfection of surfaces contaminated with SARS-CoV-2 may help prevent its spread. The aim of this study is to determine the duration required for viral RNA elimination by 222 nm far ultraviolet light using RT-qPCR as a tool. This study investigated the effect of 222 nm UVC irradiation on SARS-CoV-2 RNA in an in vitro experiment. The results showed that the copy number of SARS-CoV-2 RNA did not change even after 300 s of 222 nm UVC irradiation at 0.1 mW/cm 2 , but extending the exposure to more than 600 s reduced the number of copies of SARS-CoV-2 virus significantly. However, to fully validate the results and enhance the robustness of the findings, it is crucial to increase the number of samples analyzed in future experiments., Competing Interests: The authors declare no conflicts of interest.

Due to the mechanical nature of container handling operations, as well as natural factors, container and handling infrastructure suffers various types of damage during use, especially within the tight and enclosed environments of a ship's hull. In this operational environment, it is critical to detect any sort of physical impacts between the vertical cell guides of the ship's hull and the container. Currently, an inspection of impacts and evaluation of any consequences is performed manually, via visual inspection processes. This process is time-consuming and relies on the technical expertise of the personnel involved. In this paper, we propose a five-step impact-detection methodology (IDM), intended to detect only the most significant impact events based on acceleration data. We conducted real measurements in a container terminal using a sensory device placed on the spreader of the quay crane. The proposed solution identified an average of 12.8 container impacts with the vertical cell guides during common handling operations. In addition, the results indicate that the presented IDM can be used to recognize repeated impacts in the same space of each bay of the ship, and can be used as a decision support tool for predictive maintenance systems.

Introduction: In the paper, we examine the energy consumption efficiency of specialized container diesel trucks engaged in container transportation at a seaport terminal., Objectives: Using the container terminal at Klaipėda in Lithuania as the background for the research, we produced an improved energy consumption model for measuring the theoretical energy consumption and regeneration of diesel trucks at the terminal and provide a comparative analysis., Methods: We created a mathematical model which describes the instantaneous energy consumption of the diesel trucks, taking into account their dynamic properties and the overall geometry of their routes-"Ship-Truck-Stack-Ship"-using the superposition principle. We investigated other critical parameters relevant to the model and provide a statistical evaluation of the transportation process using data from a case study of Klaipėda port, where we collected measurements of container transportation parameters using georeferenced movement detection and logs from wireless equipment positioned on the diesel-powered container trucks., Results: The modeling results showed that an instantaneous evaluation of energy consumption can reveal areas in the container transportation process which have the highest energy loss and require the introduction of new management and process control initiatives to address the regulations which are designed to decrease harmful industrial emissions and encourage novel technologies and thereby increase the eco-friendliness of existing systems., Conclusion: Based on the research results, the article can provide a reference for the estimation of diesel truck efficiency in seaport terminal operations.

Aim: This study assessed the effectiveness of skin autografting at 6 months post treatment., Materials and Methods: A prospective analysis of the disease course and treatment of 2 groups of patients (group S contained patients who have been treated by performing the surgery of skin autografting, group C contained patients who have been treated only by nonoperative means of treatment) after 6 months who were treated from January 2001 to June 2005 at the Department of Plastic Surgery and Burns and at the Clinic of Skin and Venereal Diseases of Kaunas Medical University Hospital was performed. The analysis evaluated the influence on the speed of epithelization (healing) of ulcers by performing surgical skin autografting and conservative treatment. The speed of epithelization (the decrement of an area of an ulcer within 6 months) for the treatment of large chronic leg ulcers after the first 6-month period was also analyzed., Results: Seventy-one patients (group S, n = 40; group C, n = 31) participated in the 6-month study period. Ulcers did not heal completely in any patients in group C (100%)-ulcer size increased in 17 patients and decreased in 14 patients. The average area of ulcers for group C was 171.12 cm2 (range = 8 cm2-720 cm2). Compared to the area before treatment (m = 182.29 cm2), the reduction in average area was not significant (P > 0.5). The contamination of ulcers did not change much in either group over the course of the study. Staphylococcus aureus and Pseudomonas aeruginosa were the most commonly found pathogens. In group S, the skin epithelized completely in 27 cases (67.5%) and did not epithelize in 13 cases (32.5%). The average ulcer area was 16 cm2 (range = 6 cm2-52 cm2). In comparison with the previous area (m = 279 cm2), the current area was rather small and did not (or was insignificant) influence patient quality of life., Conclusion: According to the data from all factors that were analyzed, age was the only influence on the origination of large chronic venous leg ulcers (CVLUs, P < 0.05). Large CVLUs (> 50 cm2) of 67.5% of elderly patients (> 60 years) were healed within 2-3 weeks by skin grafting compared to the conservatively treated group and maintained closure up to 6 months (ie, if the subjects were studied up to 6 months).