Has COVID-19 Lockdown Affected on Air Quality?—Different Time Scale Case Study in Wrocław, Poland

Due to the COVID-19 pandemic, there are series of negative economic consequences, however, in limiting mobility and reducing the number of vehicles, positive effects can also be observed, i.e., improvement of air quality. The paper presents an analysis of air quality measured by concentrations of NO2, NOx and PM2.5 during the most restrictive lockdown from 10 March to 31 May 2020 on the case of Wrocław. The results were compared with the reference period—2016–2019. A significant reduction in traffic volume was identified, on average by 26.3%. The greatest reduction in the concentration of NO2 and NOx was recorded at the station farthest from the city center, characterized by the lowest concentrations: 20.1% and 22.4%. Lower reduction in the average concentrations of NO2 and NOx was recorded at the municipal station (7.9% and 7.7%) and the communication station (6.7% and 10.2%). Concentrations of PMs in 2020 were on average 15% and 13.4% lower than in the reference period for the traffic station and the background station. The long-term impact of the lockdown on air quality was also examined. The analysis of the concentrations of the pollutants throughout 2020, and in the analyzed period of 2021, indicated that the reduction of concentrations and the improvement in air quality caused by the restrictions should be considered as a temporary anomaly, without affecting long-term changes and trends.

P.126 Incorporation of Objective Structured Clinical Examination into EEG/Epilepsy Fellowship Training

Background: For over 40 years, the objective structured clinical examination (OSCE) has been a part of medical education, eventually finding its way into most aspects of clinical training and evaluation. However, the EEG/epilepsy fellowship training has not classically involved OSCE evaluations. Methods: We designed and implemented a formative OSCE for pediatric and adult EEG/epilepsy fellows in Montreal, Quebec, Canada. The examination was offered in French and English. Stations included: technical issues, short cases, a long case, and communication. We solicited post-examination feedback from all participants via anonymous electronic survey after they had completed the Canadian Society for Clinical Neurophysiology (CSCN) EEG examination. We asked questions surrounding utility of the examination, areas for improvement, and whether the participant had been successful in passing the CSCN examination. Results: Six fellows took the initial formative OSCE. All six reported passing the subsequent CSCN examination. All participants reported the OSCE as useful in examination preparation. The communication station was consistently ranked as the least useful station, an unsurprising finding given that the CSCN examination does not involve a communication component. Conclusions: OSCE is an effective tool in assessment of the level of competence of EEG/epilepsy fellows, and as preparation for the CSCN EEG examination.

Bronze Age Funerary and Later Prehistoric Activity at Badminston Farm, Fawley, Hampshire

Archaeological excavations were undertaken by Southern Archaeological Services Ltd. between 1999 and 2010 at Badminston Farm, Fawley, on the eastern edge of the New Forest, adjacent to Southampton Water. The excavations identified evidence of near- continuous human activity from the early prehistoric period to the present day. Mesolithic activity was followed by Early Bronze Age pits, containing 'placed' flint assemblages. Evidence of Bronze Age funerary activity included deflated barrows/ring ditches, and associated cremations. Late Bronze Age ceramics were absent but a hoard of 68 Armorican-type socketed axes may have been a votive offering marking the 'ancestral' barrow which would have been visible here. Other Bronze Age evidence included two burnt mounds and an ill-defined structure possibly associated with weaving. Iron Age activity was represented by a number of pits containing domestic pottery, while Late Iron Age and Romano-British ditches may have formed part of an enclosure. A significant assemblage of non-local worked stone attests to long distance exchange, and the possibility of a nearby farmstead. Medieval activity was represented by pits, ditches and stakeholes, with some evidence of an enclosure or structure associated with grain drying. Later land divisions and a WWII radio communication station dominated more recent use of the site.

Channel Buoys in Ports for Navigation

Buoy is a device which floats in the sea water, used to direct the ships in which this paper is preferable to get electricity from salt water/ sea water by using two tongue depressor. Using level sensor has per this paper, where going to sense distance between a ship / a boat and a buoy, regarding the distance between those two objects, alarms or buzzers may indicates. An IOT applications has been implemented on a buoy, so that if any obstacles damage a buoy, the information can be specified to the communication station through SIM900