Anemometric conditions at Warsaw-Okęcie station and their dependence on atmospheric circulation types

W pracy badano wpływ obszaru zabudowanego na kierunek i prędkość wiatru na peryferyjnie położonej stacji meteorologicznej (lotnisko). Przy cyrkulacji NW-NE, gdy stacja znajduje się od strony zawietrznej, kierunek wiatru ulega odchyleniu w lewo o około 1 oktant; przy innych kierunkach cyrkulacji o około 1/2 oktanta lub mniej. Przy cyrkulacjach S i E kierunek wiatru nie ulega zmianie, co jest związane z układem zabudowy i kompleksów leśnych. Odchylenie kierunku wiatru od kierunku cyrkulacji wzrasta zgodnie z jego prędkością.In the paper an influence of the built area upon a wind in the peripheric station (aidield) has been indicated. During circulation NW-NE, when the station is in leeward side, the wind direction is deviated to the left at about one octant; during other circulations at about half of an octant or less. During circulations S and E the wind direction is the same, what is connected with a configuration of building and forest area. Deviation of the wind direction from the circulation direction increases according to wind speed

Hepatoblastoma in a one month infant – a case report

Introduction: The manifestations and epidemiology of cancer differ between adults and children. Hepatoblastoma is the most common pediatric liver malignancy with multiple risk factors under investigation or already found to be at play. The aim of this work is to give a quick summary of the epidemiology of pediatric cancer with special consideration given to patients in the neonatal period. Case report: A one-month old boy has been admitted to the clinic following an incidental finding of left renal agenesis. Abdomen CT revealed a liver mass that proved to be hepatoblastoma on biopsy. Alpha fetoprotein serum level was found to be elevated. The treatment consisted of right hemihepatectomy and pre- and postoperative, cisplatin-based chemotherapy. Discussion: Hepatoblastoma is an age-specific diagnosis with prognosis that improved significantly in recent decades. Liver malignancy should be suspected in children with physical finding of hepatomegaly and always considered in case of elevated alpha fetoprotein or a liver mass on imaging examinations. An extensive list of risk factors that also include genetic syndromes may aid in identifying children that are at a particularly high risk for developing liver malignancy

Application of Photo Texture Analysis and Weather Data in Assessment of Air Quality in Terms of Airborne PM10 and PM2.5 Particulate Matter

The study was undertaken in Krakow, which is situated in Lesser Poland Voivodeship, where bad PM10 air-quality indicators occurred on more than 100 days in the years 2010–2019. Krakow has continuous air quality measurement in seven locations that are run by the Province Environmental Protection Inspectorate. The research aimed to create regression and classification models for PM10 and PM2.5 estimation based on sky photos and basic weather data. For this research, one short video with a resolution of 1920 × 1080 px was captured each day. From each film, only five frames were used, the information from which was averaged. Then, texture analysis was performed on each averaged photo frame. The results of the texture analysis were used in the regression and classification models. The regression models’ quality for the test datasets equals 0.85 and 0.73 for PM10 and 0.63 for PM2.5. The quality of each classification model differs (0.86 and 0.73 for PM10, and 0.80 for PM2.5). The obtained results show that the created classification models could be used in PM10 and PM2.5 air quality assessment. Moreover, the character of the obtained regression models indicates that their quality could be enhanced; thus, improved results could be obtained

Hepatomegaly as the first symptom of malignant solid tumors in children

Introduction: Hepatomegaly is a physical symptom that may suggest primary liver disease, or it may be present as a component of the generalized disorder. One of uncommon reasons of hepatomegaly, which occur in children of all ages, but most common in infants and toodlers, are primary and metastatic neoplasms, such as hepatoblastoma (HB) and neuroblastoma (NB). The aim of this work is to prove how significant implementation of appropriate diagnostics after detecting hepatomegaly in a child is by presenting an example of two patients’ medical history. Cases report: A 3-month-old girl and a 2-year-old boy were admitted to the Department of Pediatric Hematooncology because of the tumors, which were detected in abdominal ultasound examinations. The examinations were performed in order to find the causes of growing abdominal circumferences observed by the parents and significant hepatomegaly, which were shown in physical examination of both children. A tumor of the right adrenal gland with numerous metastatic changes in the liver was detected in the girl and a single tumor coming out most likely from the liver was revealed in the boy. Laboratory tests have shown a significant increase in the levels of tumor markers: NSE in the girl (51 μg/l) and AFP (327 830 U/ml) in the boy. On the basis of the performed tests’ results, the girl was suspected to have NB with liver metastases and the boy appeared to have HB with lung metastases, inferior vena cava and right hepatic vein invasion. Conclusions: Attention should be paid to palpation and percussion examination of the abdomen in order to detect hepatomegaly at the earliest possible stage. It is important to implement appropriate diagnostics after detecting the enlargement of the liver in a child, because this symptom may be a sign of developing dangerous tumor process