17 research outputs found
Raising territorial awareness of the students from Gorzów Wielkopolski county (Poland) as part of geographical and historical education
This article contains selected results of research on the course of geographical regional
education and the territorial awareness of pupils in Gorzów county (Western Poland),
a region situated on the border with Germany (the Land of Brandenburg). The paper defines
the basic concepts and terms, and describes a research tool. Students' knowledge about their
own region, the source of this knowledge and the means of its acquisition were set as outcomes.
The state of territorial awareness of pupils including its spatial extent and the nature and
strength of ties were established. While analyzing the results, the authors highlighted the
differences between the declared attitudes of the students of each school, differentiating
them due to the stage of education (middle school and high school) and the place (Gorzów
Wielkopolski, Kostrzyn nad Odrą and Witnica). It was found, that lessons on regional issues
implemented within geography lessons and educational trail such as Regional education
– cultural heritage in the region (Edukacja regionalna – dziedzictwo kulturowe w regionie)
play an important role and contribute significantly to the mastery of complex knowledge
about the region. Beside the formal education about the region a family home is of great
importance, especially in terms of shaping forces of territorial ties. Deficiencies in terms of
regional education were also highlighted. Due to the nature of this article and its small size
authors focuses only on the selected parts of research, in particular the analysis of the diversity
of geographical and historical knowledge resources of the surveyed students was omitted
Turning big bang into big bounce: II. Quantum dynamics
We analyze the big bounce transition of the quantum FRW model in the setting
of the nonstandard loop quantum cosmology (LQC). Elementary observables are
used to quantize composite observables. The spectrum of the energy density
operator is bounded and continuous. The spectrum of the volume operator is
bounded from below and discrete. It has equally distant levels defining a
quantum of the volume. The discreteness may imply a foamy structure of
spacetime at semiclassical level which may be detected in astro-cosmo
observations. The nonstandard LQC method has a free parameter that should be
fixed in some way to specify the big bounce transition.Comment: 14 pages, no figures, version accepted for publication in Class.
Quant. Gra
The 42nd Symposium Chromatographic Methods of Investigating Organic Compounds : Book of abstracts
The 42nd Symposium Chromatographic Methods of Investigating Organic Compounds : Book of abstracts. June 4-7, 2019, Szczyrk, Polan
A comparison of the rat spinal cord peptides identification with various mass spectrometry techniques.
Electrochemical simulation of drugs metabolism : a step towards predictive toxicology /
Promotor: Piotr Suder.Niepublikowana praca doktorska.Praca doktorska. AGH University of Science and Technology. Faculty of Materials Science and Ceramics. Department of Biochemistry and Neurobiology, 2015.Bibliogr. k. 88-97.Metabolism, definition and background, cytochromes P450 superfamily, strategies of metabolism investigation, drugs of abuse, what is addiction, main groups of narcotics, exemplary drugs metabolism pathways, analytical techniques used in drug metabolism study, electrochemistry, mass spectrometry, aim of the study, materials and methods, chemicals and reagents, instrumentation, experiments with cocaine, electrochemical system connected on-line with mass spectrometry EC/MS, off-line EC/LC-MSn analysis, maintenance of working electrodes, liquid chromatography coupled with mass spectrometry detection LC-MSn, preparation of the rat liver microsomes, cocaine metabolites, preparation with application of liver microsomes, electrochemical oxidation of the selected psychoactive substances, conditions of the experiment, maintenance of the electrochemical cell, electrochemical oxidation of psychoactive compounds with FAPA-MS detection, electrochemical oxidation of selected psychoactive compounds with ESI-MS detection, simulation of selegiline metabolism, electrochemical oxidation of selegiline on GC and BDD electrodes, generation of selegiline metabolites using rat and human liver microsomes, EC/LC/ESI-MS analysis, EC/LC/DBDI-MS analysis, results of the experiments with cocaine, electrochemical oxidation of cocaine on BDD working electrode with on-line mass spectrometry detection, off-line EC/LC-MSn analysis, cocaine oxidation on GC working electrode, cocaine metabolites obtained by incubation with rat microsomes, electrochemical oxidation of selected psychoactive substances, coupling EC with FAPA-MS detection, FAPA-MS identification of oxidation products, ESI-MS identification of oxidation products, simulation of selegiline metabolism, electrochemical oxidation of selegiline, generation of selegiline metabolites by incubation with microsomes, electrochemical oxidation of selegilin
Nanohydrogels based on self-assembly of cationic pullulan and anionic dextran derivatives for efficient delivery of piroxicam
Thermal Diffusivity of Concrete Samples Assessment Using a Solar Simulator
The thermal properties of pavement layers made of concrete with varying bulk densities are a particularly interesting topic in the context of development road technologies. If a hybrid layer system is used as a starting point, with thin asphalt layers (from 1 cm to 4 cm) laid on top of a foam concrete layer, thermal properties begin to play a crucial role. The main research problem was to create a test method enabling the assessment of the influence of solar heating on the thermal parameters of the building material, especially cement concrete. For this reason, this paper is concerned specifically with the assessment of a new methodology for testing and calculating the value of the thermal diffusivity coefficient of samples made of concrete varying bulk densities. In this case, using the proprietary concept the authors built a solar simulator using a multi-source lighting system. The analysis of the results of laboratory tests and numerical analyses allowed the authors to observe that there is a strong correlation between the bulk density of samples heated and the thermal diffusivity parameter, which appears in the unidirectional heat transfer equation. The strength of this relationship has been expressed with the coefficient of determination and amounts to 99%. The calculated values of the coefficient of thermal diffusivity for samples made of foam concrete range from 0.16×10−6m2s to 0.52×10−6m2s and are lower (from 2.5 to 8 times) than the value determined for samples made of typical cement concrete
Thermal Diffusivity of Concrete Samples Assessment Using a Solar Simulator
The thermal properties of pavement layers made of concrete with varying bulk densities are a particularly interesting topic in the context of development road technologies. If a hybrid layer system is used as a starting point, with thin asphalt layers (from 1 cm to 4 cm) laid on top of a foam concrete layer, thermal properties begin to play a crucial role. The main research problem was to create a test method enabling the assessment of the influence of solar heating on the thermal parameters of the building material, especially cement concrete. For this reason, this paper is concerned specifically with the assessment of a new methodology for testing and calculating the value of the thermal diffusivity coefficient of samples made of concrete varying bulk densities. In this case, using the proprietary concept the authors built a solar simulator using a multi-source lighting system. The analysis of the results of laboratory tests and numerical analyses allowed the authors to observe that there is a strong correlation between the bulk density of samples heated and the thermal diffusivity parameter, which appears in the unidirectional heat transfer equation. The strength of this relationship has been expressed with the coefficient of determination and amounts to 99%. The calculated values of the coefficient of thermal diffusivity for samples made of foam concrete range from 0.16×10−6m2s to 0.52×10−6m2s and are lower (from 2.5 to 8 times) than the value determined for samples made of typical cement concrete
Structural studies on diverse betacyanin classes in matured pigment-rich fruits of <I>Basella alba</I> L. and <I>Basella alba</I> L. var. 'Rubra' (Malabar spinach)
Identification of betacyanins in Basella alba L. and Basella alba L. var. ‘Rubra’ fruits was performed by low- and high-resolution mass spectrometry (LRMS and HRMS) as well as (1)H, (13)C and two-dimensional NMR which revealed hitherto completely not known betacyanin classes in the plant kingdom. Especially, the presence of unique nitrogenous acyl moieties in the structures of the pigments was ascertained by the HRMS Orbitrap detection. Except for detected polar betacyanin glycosylated derivatives, presence of a series of previously not reported pigments such as malonylated betanidin 6-O-β-glusosides with their acyl migration isomers along with the evidence of the 3′′-hydroxy-butyrylated betacyanins is reported. The first complete NMR data were obtained for novel and principal acylated gomphrenins with hydroxycinnamic acids: 6′-O-E-caffeoyl-gomphrenin (malabarin), 6′-O-E-sinapoyl-gomphrenin (gandolin), 6′-O-E-4-coumaroyl-gomphrenin (globosin) and 6′-O-E-feruloyl-gomphrenin (basellin)