By coal mining and exploatation, radioactive radon gas, which is captured in natural geological structures, is reallocated from the deep coal layers. Hence it is concentrated in the depots and coal seams of the mines or being transported to the surface of the earth where it can significantly change the levels of radioactivity in the working premises and residences. This paper presents the results of a three-year research of radon activity concentration in the air in hole and surface coal mines of Bosnia and Herzegovina. Detected concentrations of radon in the coal gaseous structure, atmosphere and other ambient media are in correlation with the properties of geological structures, technology for obtaining coal and meteo-climatic changes. They were measured with Alpha GUARD PQ 2000 radon portable measuring system (instruments Genitron-Frankfurt) and RadoMeter 2000 (Radosys LTD. Budapest), using the SS-NTD method.
While conventional similar books focus on medical science and social aspects, this book emphasizes computing science and engineering design. This feature can help with both industry development and academic research. It book explains in detail both entire telehealthcare engineering system and individual hardware components. For example, it has circuit design details on ECG /EEG sensors. Highlighting basic principles and deep research development (R&D) details, the book focuses on two important design aspects: medical sensor design and medical signal processing. Their principles can be directly used for practical product design.
Public telephones are handled by many people and can serve as vehicle of disease transmission. Our study involved the microbiological analysis of public telephones. We analysed 60 telephones from the downtown area of Sarajevo and they were all positive for bacterial contamination. The analysis used microbiological, biochemical and serological methods. More Gram-positive than Gram-negative bacteria were isolated, and the most common bacteria were Staphylococcus epidermidis. Beside this, we also found pathogenic and opportunistic bacteria such as Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa. The hygiene of the environmental surfaces and public objects is to be considered as various opportunistic bacterial pathogens were isolated.
The aim of the paper is to investigate significance of the endoscopic ultrasound (EUS) in diagnostic and staging of gastric lymphoma. Retrospective clinical study was conducted at the Clinic for Hematology and Clinic for Gastroenterology of the University Clinical Center of Sarajevo in the period of years 2002 to 2009. Patients (N = 40) with diagnosis of gastric lymphoma confirmed by pathohistological diagnosis were included in the study. Stage of the disease was determined based on EUS, proximal endoscopy, CT and ultrasound of abdomen, and classified according to the Ann Arbor classification. 39 patients had various types of non Hodgkin lymphoma and one patient had Hodgkin lymphoma. Based on morphological characteristics of gastric tumor visualized with EUS in 16 patients a gastric cancer was suspected. In 40% patients EUS finding was not confirmed by pathohistological finding. Compared both to CT and ultrasound of abdomen, EUS showed statistically significant higher frequency of establishing existence of infiltration (p < 0.001). In patients with primary gastric lymphoma EUS has more significant role in determination of stage of disease spread than for the diagnosis itself. Therefore EUS should be included into algorithm of patient diagnostic protocol when suspected to the malignant gastric disease.
The mini-proceedings of the Workshop on PWA tools in Hadronic Spectroscopy held in Mainz from February 18th to 20th, 2013.
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