The objective of the proposed experiment was to determine changes in the content of vitamin C in the vegetable material (fresh and processed) during a certain period of time, and to determine the optimal expiry date of a product (in terms of the vitamin C content), as well as to introduce students to common factors adversely affecting the content of vitamin C in food products (with a special emphasis on oxidizing enzymes). The research revealed that regardless of the type of cucumbers (fresh, pickled in brine or in vinegar), the content of vitamin C is rapidly dropping after the destruction of the cellular structure (grating, slicing etc.). In the case of fresh cucumbers, it is a process determined by two factors: release and activation of ascorbinase from the destroyed cellular structure and availability of oxygen. Low pH values in the remaining cases reduce the effect of ascorbinase, and a decrease in the vitamin C content is related to the process of oxidation with atmospheric oxygen.
This paper presents a comparative analysis of complexity between the B-TREE and the Binary Search Algorithms, both theoretically and experimentally, to evaluate their efficiency in finding overlap of classes for students and teachers in the University Course Timetabling Problem (UCTP). According to the theory, B-TREE Search complexity is lower than Binary Search. The performed experimental tests showed the B-TREE Search Algorithm is more efficient than Binary Search, but only using a dataset larger than 75 students per classroom.
thesis “The influence of typical chemical stabilizers on clay minerals in grain distribution,
as determined by pipette analysis” presented at the Jagiellonian University in 1960.
Her professional work began in 1951 in the Department of Engineering Geology,
Technical University, Warsaw, where, for eight years, she held classesforstudents in
general geology and petrography. In 1951, she joined the Department of Mineralogy and
Geochemistry of the Polish Geological Institute in Warsaw, then headed by prof. Antoni
Her main field of
Multiple Applications for Business Schools. Business Education Innovation Journal, 2(2), 6-13. DeSantis, L., Pantalone, C., & Wiseman, F. (2011). Using technology to reduce the effects of missed classesforstudents-athletes. MERLOT Journal of online learning and teaching, 7(4), 480-488. Devadoss, S. and Foltz, S. (1996) Evaluation of factors influencing student class attendance and performance. American Journal of Agricultural Economics, 78, 499-507. Dey, Eric L., Helen E. Bum, and David Gerdes. 2009. "Bringing the Classroom to the Web: Effects of Using New Technologies
definitely more important from the point of view of designing for
1 All projects of toy-robots were carried out within interdisciplinary classesforstudent
form – Wszystkie projekty robotów-zabawek zostały zrealizowane w ramach zajęć
interdyscyplinarnych łączących studentów WiAW ASP i IAZSR PŁ.
Projects were accomplished under the supervision of dr hab. Anna Miarka (Academy of
Fine Arts), dr hab. inż. Grzegorz Granosik (Lodz University of Technology) and
mgr inż. Igor Zubrycki (Lodz University of Technology
• Running the preventive, informative, educational and training activity
within the framework of solving the drug abusing problems, particularly
for children and teenagers, including running the sport – recreational
classesforstudents, and also the activities to give additional food for
children taking part at the aft er school tutorial, educational and socio
• Support for the activities of the institutions, off – government organiza-
tions and the natural persons helping to solve the drug abuse problems;
• Social assistance for addicted