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Structure analysis of molecular crystals
Janíček, Jakub ; Císařová, Ivana (advisor) ; Vojtíšek, Pavel (referee)
Summary: Diploma thesis covers characterization of molecular crystals by X-ray structural analysis. N-carbamimidazoylisonikotinamid and 1-phenylguanidin were chosen, because their potential use in second harmony generation. Their salts with inorganic acids were prepared and determined their structures. Phase transition of 4,6-diaminopyrimidinium nitrate was studied by x-ray diffraction and differential scanning calorimetry. This phase transition is accompanied by thermosalient effect, causing that the crystals jump. Keywords: thermosalient, jumping crystal, X-ray diffraction, non-linear optics, N-carbamimidazoylnikotinamid, 1-phenylguanidin, 4,6diaminopyrmidin.
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Substance abuse and addictive behaviour among people with acquired physical disability: questionnaire survey.
Císařová, Ivana ; Svěcená, Kateřina (advisor) ; Kulhánek, Adam (referee)
Background: In the Czech Republic and abroad, there is very little research regarding addiction-related issues of physically disabled people, although there are many risk factors that may contribute to the development of substance use problems in this group. Substance use also often plays a role in the aetiology of the disability itself. Objective: The main aim of this paper was to map out and analyze the use of legal and illegal substances and addictive behaviour in a specific group of people with acquired physical disabilities. Methods: The research was conceptualized using a quantitative method and data was collected through an online questionnaire survey. Further, the data was processed and analysed using Microsoft Excel and TIBCO Statistica 13. The research sample consisted of 102 individuals with acquired physical disabilities whose average age was 39,8 years. Results: The results show that, according to the AUDIT questionnaire, 88,2 % of individuals in the group of people with an acquired physical disability abstain or consume alcohol at low risk. Respondents who had a positive prognosis for their disability had significantly lower AUDIT scores than respondents without a positive prognosis. It was also revealed that 18,6 % of the respondents smoked daily or almost daily and the majority...
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Structure analysis of molecular crystals
Janíček, Jakub ; Císařová, Ivana (advisor) ; Vojtíšek, Pavel (referee)
Summary: Diploma thesis covers characterization of molecular crystals by X-ray structural analysis. N-carbamimidazoylisonikotinamid and 1-phenylguanidin were chosen, because their potential use in second harmony generation. Their salts with inorganic acids were prepared and determined their structures. Phase transition of 4,6-diaminopyrimidinium nitrate was studied by x-ray diffraction and differential scanning calorimetry. This phase transition is accompanied by thermosalient effect, causing that the crystals jump. Keywords: thermosalient, jumping crystal, X-ray diffraction, non-linear optics, N-carbamimidazoylnikotinamid, 1-phenylguanidin, 4,6diaminopyrmidin.
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