Institution
Jan Długosz University
Education•Częstochowa, Poland•
About: Jan Długosz University is a education organization based out in Częstochowa, Poland. It is known for research contribution in the topics: Crystal structure & Luminescence. The organization has 749 authors who have published 2311 publications receiving 19395 citations. The organization is also known as: Higher Teacher Education School.
Papers published on a yearly basis
Papers
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TL;DR: In this paper, the origin of structural relaxation in As 40 Se 60 glass at different annealing temperatures is studied by differential scanning calorimetry (DSC) and in situ extended X-ray absorption fine structure (EXAFS) methods.
26 citations
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TL;DR: In this article, the results of the nonlinear optical (NLO) investigation (second and third harmonic generation) of spin deposited high-quality thin films of styrylquinoline containing methacrylic polymers studied by using Maker fringes technique employing 30 ps laser pulses at fundamental wavelength of 1064
26 citations
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TL;DR: In this article, first principles calculations of the structural, electronic and optical properties of two representatives of the chalcopyrite group of compounds (LiInSe2 and LiInTe2) are reported.
26 citations
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TL;DR: The study showed that quantitative assessment of viable bioaerosol can be made with an Andersen impactor as well as by using Button and GSP filter samplers, irrespective of whether they are applied for personal or stationary measurements.
Abstract: OBJECTIVES To date, the scientific source materials usually focus on microbial contamination of the museum or library collections themselves, while the exposure of persons who professionally deal with this type of objects in cultural heritage conservation laboratories is ignored. MATERIAL AND METHODS The study was carried out in 9 naturally ventilated conservation laboratories with no history of water damage. Viable (understood as culturable) bioaerosol stationary samples were collected in both outdoor and indoor environments using 6-stage Andersen impactor. Simultaneously, stationary and personal indoor bioaerosol measurements were carried out using both Gesamtstaubprobenahme an der Person (GSP) and Button filter samplers. These measurements were complemented by evaluation of microbial content in the dust settled on conserved works of art. All impactor, filter, and settled dust samples were quantitatively examined to obtain viable and total concentrations of bacteria and fungi. All isolated microbial strains were taxonomically identified. RESULTS At workplaces, the concentrations of viable microorganisms in air were below 2000 cfu/m3 and accounted for not more than 5.5% of total microbiota. The study showed that quantitative assessment of viable bioaerosol can be made with an Andersen impactor as well as by using Button and GSP filter samplers, irrespective of whether they are applied for personal or stationary measurements. Compared to the impactor, however, the use of filter samplers for microbial contamination monitoring substantially limits the scope of qualitative information which can be obtained. Size distribution analysis revealed that the largest "load" of microorganisms can penetrate into the respiratory tract between the trachea and terminal bronchi, and thereby may be responsible for allergic inflammations in exposed workers. CONCLUSIONS The precise assessment of microbial hazards in conservation laboratories should comprise control of both viable and total particle counts. The hermetization of such workplaces and control of relative humidity should be implemented and maintained to assure proper hygienic conditions.
26 citations
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TL;DR: In this paper, the authors have synthesized ZnO-Ta 2 O 5 -B 2 O 3 glass ceramics with different concentrations of Ta 2O 5, and the prepared samples were characterized by XRD, SEM and DSC techniques.
26 citations
Authors
Showing all 755 results
Name | H-index | Papers | Citations |
---|---|---|---|
Mikhail G. Brik | 48 | 408 | 9470 |
I.V. Kityk | 37 | 288 | 5211 |
I.V. Kityk | 37 | 287 | 5579 |
Marek Kowalczuk | 36 | 191 | 4128 |
Joanna Wietrzyk | 35 | 367 | 4804 |
Aleksander Sieroń | 33 | 292 | 4462 |
Lesław Juszczak | 33 | 104 | 2947 |
Józef Drabowicz | 31 | 277 | 3416 |
Keshra Sangwal | 30 | 177 | 4053 |
Oleh Shpotyuk | 29 | 295 | 3471 |
Adam Opolski | 29 | 92 | 2278 |
Piotr Dobrzyński | 27 | 129 | 2286 |
Piotr Kurcok | 25 | 76 | 1794 |
Jaroslaw Krzywanski | 25 | 77 | 1229 |
Malgorzata Makowska-Janusik | 24 | 105 | 1786 |