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Black carbon measuruments comparison
Vítová, Jana ; Zíková, Naděžda (advisor) ; Vondráková Pokorná, Petra (referee)
This thesis focuses on comparing three devices designed for measuring equivalent black carbon (referred to as eBC - equivalent black carbon), specifically the MAAP instrument (Multi-Angle Absorption Photometer) model 5012, the Aethalometer model AE33, and a semi-continuous analyzer of organic and elemental carbon. The instruments collected eBC concentrations at the Institute of Chemical Process Fundamentals of the Czech Academy of Sciences (Ústav chemických procesů AV ČR, v.v.i.) in the northwest of Prague from October 4, 2021, to September 30, 2022. Initially, total eBC concentrations were compared between all mentioned instruments using the non-parametric Wilcoxon test. Subsequently, daily, weekly, and annual variations in BC were determined. Finally, values of the Ångström absorption coefficient, mass absorption cross section (MAC), and harmonization factor C, which had not been determined for the mentioned measurement area, were calculated. For all instruments, a mutual agreement was found, confirmed by correlation coefficients: AE33 and MAAP with r=0.88, AE33 and OC/EC with r=0.83, and MAAP and OC/EC with r=0.76. The coefficients of determination between individual instruments were also obtained: AE33 and OC/EC with Rš=0.68, OC/EC and MAAP with Rš=0.57, and AE33 and MAAP with Rš=0.77. The...
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Socially Pathological Phenomena Occuring in Exkluded Localities
VONDRÁKOVÁ, Petra
This bachelor thesis discusses socially pathological phenomena that occur in excluded localities in the town of Slaný and its environs. There are serious social problems in socially excluded localities. For these localities, a higher occurrence of socially pathological phenomena is typical. The theoretical part of this bachelor thesis discusses socially excluded localities in Slaný and its environs, at present, there are six such localities. This thesis also describes the bad living conditions of people who live in these places. My opinion is that other citizens of the town of Slaný have no idea how people in these localities live. This thesis aims to raise awareness not only among the citizens of Slaný. The thesis further focuses on the difference between social pathology and deviation, it explains the terminology of social exclusion and a socially excluded locality. It also discusses drug abuse, criminality, aggression, and gambling. These are serious social problems that occur in today's society. The thesis also talks about the cause of the above mentioned pathological phenomena. The aim of this thesis is to chart the socially pathological phenomena that are located in excluded localities. Two research questions were chosen: Vo1: How does the unemployment of the socially excluded locality citizens influence the occurrence of socially pathologically phenomena? Vo2: What is the influence of the education of the socially excluded locality citizens on the occurrence of socially pathologically phenomena? For the practical part of this thesis, a quantitative method was used. A questionnaire was used as a research instrument with inhabitants of the above socially excluded locality as respondents. The data which were obtained were processed using descriptive statistics in MS Excel and hypothesis testing took place in the program SPSS, using t-test and chí-kvadrát test. The questions in the questionnaire survey were elected the way that they could tell which socially pathologically phenomena occur in the excluded locality of Slaný and its environs. In my research, fourteen hypotheses were dealt with. Some hypotheses assumed that the occurrence of socially pathologically phenomena is influenced by the unemployment of socially excluded locality inhabitants. The next hypotheses assumed that the education of the inhabitants of socially excluded localities influences the occurrence of socially pathological phenomena. Research results showed that the unemployment in this area is influenced by alcohol and drug abuse as well as smoking and the occurrence of execution in these localities. It also proved that education is also influenced by alcohol and drug abuse together with smoking and the occurrence of execution. According to this research unemployment and education have no influence on gambling and criminal record.
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