"It happened, what's the problem?" and "A guide through the problem" - A model for consideration of ecological issues in chemistry education

In order to improve the ability to apply knowledge of chemistry (acquired in the existing educational system) in real life, the model for consideration of ecological issues was developed and applied in high school. The model consists of a continuous text "It Happened, What's the Problem?" and a test with non-continuous text "A Guide Through the Problem", which were prepared for consideration of the problem of eutrophication. All results obtained (average achievement of 70.9 +/- 14.3 %) showed that the application of the model enabled: understanding of an ecological problem based on scientific representations of the term eutrophication given in the continuous text, realization that pollution of the environment may be directly related to modern life, application of acquired knowledge of chemistry to observe and understand the cause and effect of eutrophication in the environment, to draw a scientific conclusion, and understanding the importance of science and technology discoveries for solving ecological problems. In addition, the model contributed to the development of student's environmental literacy (ecological knowledge and cognitive skills), ability to think critically, and provided possibilities for classroom knowledge to become applicable in real life

"Videri quam esse" - Leon Battista Albertis zweites Buch der "Intercenales"

Die vorliegende Arbeit enthält eine literaturwissenschaftlich-philologische Analyse des zweiten Buches der Intercenales des Leon Battista Alberti, das in neun kurzen Texten satirischen Tons den Umgang mit Geld thematisiert. Das erste Eingangskapitel behandelt den Autor selbst sowie seine Bedeutung für die Interpretation. Das zweite Eingangskapitel enthält einen ideengeschichtlichen Abriss über Konzepte des Umgangs mit Reichtum, der sich von der Antike (Platon, Aristoteles, Cicero, Seneca) über das Mittelalter bis in Albertis Gegenwart, das italienische Quattrocento, erstreckt. Die dort herausgearbeiteten Prinzipien sind als Hintergrundwissen der LeserInnen der Intercenales zu betrachten und beeinflussen daher die Interpretation. Das darauffolgende Kapitel enthält Detailanalysen aller neun Texte des zweiten Buches (Prohemium ad Leonardum Arretinum, Oraculum, Parsimonia, Gallus, Vaticinium, Paupertas, Nummus, Pluto, Divitie) unter Einbezug der antiken Vorbildstellen. Im letzten Kapitel folgen Ansätze über die der Anordnung der Texte zugrundeliegenden Prinzipien der Buchkomposition

COVID-19-Associated Pulmonary Aspergillosis in Patients with Acute Leukemia: A Single-Center Study

Patients with coronavirus disease 19 (COVID-19) have increased susceptibility to secondary respiratory infections including invasive pulmonary aspergillosis (IPA). COVID-19-associated pulmonary aspergillosis (CAPA) is difficult to diagnose and can be associated with increased mortality especially in severe immunodeficiency such as hematological malignancies. Our study evaluates IPA in COVID-19 patients defined as COVID-19-CAPA among patients with acute leukemia (AL). A retrospective single-center study analyzed 46 patients with COVID-19 infection and acute leukemia, admitted to the Clinic for Haematology, Clinical Center of Serbia, Belgrade between the 2 April 2020 and 15 May 2021. During hospitalization, all participants were diagnosed with probable IPA according to the previous consensus definitions. Positive serology and galactomannan (GM) detection values in bronchoalveolar lavage (BAL) and serum were used as microbiological criteria. COVID-19 associated probable IPA was found in 22% (9/41) tested patients, where serum GM and IgM anti-Aspergillus antibodies were positive in 12% (5/41) and 10% (4/41) had positive serology for aspergillosis. One patient died while eight recovered during follow-up. Our study showed that COVID-19 might be a risk factor for IPA development in patients with AL. Early diagnosis and prompt treatment are required as reported mortality rates are high