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Search results for: CHIRAL SELECTOR
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A novel methodology for the enantiomeric resolution of methamphetamine, its precursors and intermediates by GC-MS
PublicationImpurity profiling and classification of abused drugs using chiral analytical techniques is of particular interest and importance because of the additional information obtained from this approach. When these methods are applied to the synthesis of illicitly used substances, they can supply valuable information about the conditions/chemicals used in the synthesis. In this study, simultaneous chiral separation of methylamphetamine,...
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Biomonitoring and health risks assessment of trace elements in various age- and gender-groups exposed to road dust in habitable urban-industrial areas of Hefei, China
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Human serum interactions with phenolic and aroma substances of Kaffir(Citrus hystrix) and Key lime (Citrus aurantifolia) juices
PublicationTo understand the therapeutic application of polyphenols extracted from Kaffir (PolKaf) and Key (PolKey) limesdifferent analytical methods were applied. Based on quantitative analysis by two dimensional gas chromato-graphy (GC×GC) and time of flight mass spectrometry (TOFMS) it can be observed that the biggest differencesin the contents of selected terpenes of Kaffir and Key limes occur in chemical compounds such as limonene, citraland...
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Influence of the mobility package on the functioning of the Polish road transport of goods sector
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The assessment of renewable energy in Poland on the background of the world renewable energy sector
PublicationThe issues of the article are associated with the development of the renewable energy source (RES) sector in the world and in Poland. The subject is undoubtedly connected with the problem of the energy transformation taking place in most countries nowadays. Energy transformation processes are mainly associated with an increase in the share of energy production from RES and increased awareness of energy use by end consumers. This...
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Innovation and Knowledge Management in the SME Sector and the Role of Normative Management Systems
PublicationThe article presents deliberations related to importance and specificity of innovation activities in small and medium-sized enterprises. Basing on results of the research the characteristics of the SMEs concerning process related and organizational innovation has been determined. Interrelations between innovation activities and knowledge management within the framework of normative management systems have been emphasized.
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TRANSFORMATION OF THE BANKING SECTOR AS AN ELEMENT OF ECONOMIC TRANSFORMATION IN SOUTH-EAST EUROPE
PublicationThe issue of stability in economy is essential, both in theoretical as well as in practical discussion. It is especially important in an environment of economic transformation. The aim of the article is to assess the economic stability during the transformation of the south-east region of Europe over a period of 19 years (1996 – 2014), and the mutual relation between the economic stability and the transformation process, including...
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The conditions of the business services sector in Poland and its competitiveness in the global market
PublicationThe following article presents the conditions of the business services sector (BSS) in Poland and the assessment of its competitiveness in the global market. The first section discusses the BSS sector and the categories of the provided services, in the division of business process outsourcing, shared services center, information technology outsourcing, research and development. Next the authors presents the status of the business...
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HYDROGRAPHIC SURVEY PLANNING FOR THE DETERMINATION OF TERRITORIAL SEA BASELINE ON THE EXAMPLE OF SELECTED POLISH SEA AREAS
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New Method for Photoactive Cement Preparation—Selected Mechanical Properties and Photocatalytic Activity of New Materials
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Aqueous Extracts of Selected Potentilla Species Modulate Biological Activity of Human Normal Colon Cells
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Application of QSAR Analysis and Different Quantum Chemical Calculation Methods in Activity Evaluation of Selected Fluoroquinolones
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A General Scheme of a Branch-and-Bound Approach for the Sensor Selection Problem in Near-Field Broadband Beamforming
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The effect of deep pectoral myopathy on the properties of broiler chicken muscles characterised by selected instrumental techniques
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Stability studies of selected polycyclic aromatic hydrocarbons in different organic solvents and identification of their transformation products
PublicationGłównym problemem w laboratoriach analitycznych jest konserwacja próbek i ekstraktów przeznaczonych do analizy. Rozpatrując procesy degradacji z analitycznego punktu widzenia i związanej z tym wiarygodności uzyskiwanych wyników pod uwagę należy wziąć wpływ procesów degradacji w badanym elemencie środowiska na poziom stężenia składników śladowych; wpływ tych samych procesów na poziom składników śladowych w już pobranych próbkach...
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Studies on the orientation effect of crystallites and its application to cocrystal screening of selected pharmacologically active compounds
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PLS-Based and Regularization-Based Methods for the Selection of Relevant Variables in Non-targeted Metabolomics Data
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Comparison of Antioxidant Activity of Protein Isolates Derived from Selected Dry-Cured Meat Products
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New Coordination Polymers of Selected Lanthanides with 1,2-Phenylenediacetate Linker: Structures, Thermal and Luminescence Properties
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Designing sustainable school facilities for public health promotion. Selected issues and examples of good practice
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Laser beam angular stabilization system based on a compact interferometer and a precise double-wedge deflector
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Description of the Dataset Rhetoric at School – a Selection of the Syllabi from the Academic Gymnasium in Gdańsk – Transcription and Photographs
PublicationThe research dataset described in the article was based on photographs and transcription of a textual record from Latin syllabi for classes at the Gdańsk Academic Gymnasium. The syllabi concern the years 1645/1648/1652/1653. The original document is held in the collection of the Gdańsk Library of the Polish Academy of Sciences [reference number: Ma 3920 8o]. The collected research material can be used for studying the practical...
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Influence of the Multiple Injection Moulding and Composting Time on the Properties of Selected Packaging and Furan-Based Polyesters
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Application of image processing methods for the characterization of selected features and wear analysis in surface topography measurements
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Retro analog concept: comparative study on physico-chemical and biological properties of selected antimicrobial peptides
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Characterization of Selected Jackfruit Germplasm Accessions for Fruit Shape Through Morphological and Marker Based Assay
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Heavy stable charged particles search by RPC system at CMS detector at LHC accelerator at CERN
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Selected issues regarding the reliability-operational assessment of electronic transport systems with regard to electromagnetic interference
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coincidence investigation of inelastic electron-atom collisions with magnetic selection of scattering angle - feasibility study
PublicationOpisana została nowa aparatura do badania zderzeń elektronów z atomami metodą koincydencji z wykorzystaniem techniki lokalnego pola magnetycznego. Połączenie obu metod umożliwia wyznaczenie parametrów koincydencji w pełnym kącie rozproszenia. W pracy zaprezentowano pierwsze widma energii straconej oraz widma koincydencji.
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The Antioxidant Properties of Selected Varieties of Pumpkin Fortified with Iodine in the Form of Potassium Iodide and Potassium Iodate
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Spectral Characteristic and Preliminary Anticancer Activity in vitro of Selected Rhodanine‐3‐carboxylic Acids Derivatives
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THE APPLICATION OF BALANCED SCORECARD METHOD FOR THE SELECTION OF FACTORS USED IN THE EFFICIENCY MEASUREMENT OF PUBLIC HOSPITALS IN POLAND
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Skrzydlate słowa pochodzenia biblijnego na wybranych przykładach [Winged words of biblical origin, a selection]
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Bibliografia wybranych prac Profesora Franciszka Apanowicza [Bibliography of selected works by Professor Franciszek Apanowicz]
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Bibliografia wybranych prac Magister Lucyny Szczukowskiej [Bibliography of selected works by Lucyna Szczukowska, MA]
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Bibliografia wybranych prac Magister Teresy Szymanik [Bibliography of selected works by Teresa Szymanik, MA]
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Bibliografia wybranych prac Profesor Janiny Bartoszewskiej [Bibliography of selected works by Professor Janina Bartoszewska]
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Bibliografia wybranych prac Profesor Marceliny Grabskiej [Bibliography of selected works by Professor Marcelina Grabska]
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Awareness of patients suffering from selected chronic diseases of the importance of physical activity in treating their disorders
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Nasal endoscopy: an adjunct to patient selection for preoperative low-dose CT examination in chronic rhinosinusitis
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Should we publish in Chinese? –answers exemplified by articles on OSH and electromagnetism indexed in selected databases
PublicationThe article addresses the issues of scientific communication, including the indexing of articles in international databases (Web of ScienceCC, Scopus) and Chinese institutions, including technical universities. One of the important issues in assessing the quality of a scientist's work is the...
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Stationarity-Based Approach for the Selection of Lag Length in Cointegration Analysis Used for Structural Damage Detection
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SELECTED PROBLEMS PERTAINING TO MODERNISATION OF LAND AND BUILDING RECORDS – DETERMINATION OF BOUNDARIES OF REAL ESTATE PLOTS
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Scaling of signed residue numbers with mixed-radix conversion in FPGA with extended scaling factor selection
PublicationA scaling technique of signed residue numbers in FPGA is proposed. The technique is based on conversion of residue numbers to the Mixed-Radix System (MRS). The scaling factor is assumed to be a moduli product from the Residue Number System (RNS) base. Scaling is performed by scaling of MRS terms, the subsequent generation of residue representations of scaled terms, binary addition of these representations and generation of residues...
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The use of selected analytical techniques for pollutants determination in the environmental samples collected from the Arctic regions
PublicationThe paper concern importance of the use of analytical techniques for pollutants determination in the Arctic based on the example of total organic carbon, phenolsandformaldehyde determinationandmeasurementofpHand electrical conductivity parameters in surfacewater samples collected fromthe Revelva catchment.
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The change of mechanical properties of selected wood species after drying process under various conditions
PublicationThe result of mechanical properties change of selected wood species after drying process under various parameters are presented. The global elasticity modulus and bending strength for steam dried, air-steam mixture dried and air dried samples as reference were measured. It allowed to reveal the effect of wood stream, air-steam mixture and their temperature on mechanical properties of wood. It has been recognized that steam and...
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Physical and mechanical properties of rigid polyurethane faoms modified with selected flame retardants or layered silicates
PublicationW pracy przedstawiono charakterystykę pianek poliuretanowych zawierających klasyczne środki uniepalniające oraz nanonapełniacze z grupy glinokrzemianów warstwowych. Zbadano wpływ zarówno nanonapełniaczy na bazie naturalnego montmorylonitu, jak i modyfikowanych glinokrzemianów. Uzyskane spienione poliuretanowe o zmniejszonej palności charakteryzowano z wykorzystaniem różnych technik badawczych, między innymi wykonano badania DMA,...
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Selected aspects of traction transformer diagnosis based on analysis of power looses in windings and the iron core
PublicationW rozdziale przedstawiono metodę diagnostyki detekcji uszkodzeń wewnętrznych uzwojeń transformatora trakcyjnego oparta na analizie strat mocy rozpraszanej wewnątrz transformatora. Straty mocy są powiekszane o szereg czynników świadczacych o uszkodzeniu transformatora takich jak: zwarcia zwojowe, asymetria uzwojeń, relaksacja naprężeń na stykach połaczeń, uszkodzenie izolacji pomiedzy blachami rdzenia itp. Proponowana metoda dokonuje...
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Selected Aspects of Testing the Positioning Accuracy of GNSS Receivers Used in Sports and Recreation by Dynamic Measurements
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Substituent effects on ^15N NMR chemical shifts in selected N-alkylthiohydroxamic acids. A comparative study
PublicationNa podstawie widm 15N NMR przeanalizowano wpływy podstawników wybranych kwasów tiohydroksamowych na przesunięcia chemiczne N-15. Analiza porównawcza z przesunięciami chemicznymi strukturalnie podobnych amidów, tioamidów i kwasów hydroksamowych pozwoliła na stwierdzenie, że nie zatłoczenie steryczne a grupa N-OH jest odpowiedzialna za osłabienie efektów odsłaniających zarówno podstawników bezpośrednio związanych z atomem azotu jak...