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Search results for: TELEKONFERENCJA IMS
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QRS Morphology-Based EDR Signal—Factors Determining its Properties
PublicationRespiration-induced signals contain a clinically significant information. It could be obtained utilizing both direct and indirect methods. ECG-Derived Respiration (EDR) method is the latter one. However, in this case, two approaches could be distinguished. First one is based on determining changes in the morphology of QRS complexes while the second one is based on the Respiratory Sinus Arrhythmia (RSA) mechanism. The former approach...
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Representing and Managing Experiential Knowledge with Decisional DNA and its Drimos® Extension
PublicationThe Semantic Web concept is proposing a future concept of the WorldWideWeb (WWW) where both humans and man-made systems are able to interconnect and exchange knowledge. One of the challenges of Semantic Web is smart and trusted accommodation of knowledge in artificial systems so it can be unified, enhanced, reused, shared, communicated and distributed with added aptitude. Our research represents an important component of addressing...
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RMS-based damage detection in reinforced concrete beams: numerical simulations
PublicationImage-based damage detection methods using guided waves are well known and widely applied approaches in structural diagnostics. They are usually utilized in detection of surface damages or defects of plate-like structures. The article presents results of the study of applicability of imaging wave-based methods in detection in miniscule internal damage in the form of debonding. The investigations were carried out on numerical models...
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Effects of the Origin and Deacetylation Degree of Chitosan on Properties of Its Coatings on Titanium
PublicationThe properties of chitosan coatings on titanium surfaces may be influenced by a variety of factors, including their chemical characteristics and the deposition method. The aim of this research was to determine the influence of a chitosan’s origin (a type of shrimp) and deacetylation degree (DD), when deposited on a very smooth titanium surface, on adhesion and biological behavior. The tests were performed using chitosan of a degree...
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Identification of the Agile Mindset and Its Comparison to the Competencies of Selected Agile Roles
PublicationIn this paper we present the results of the identification and evalua-tion of the elements of an agile mindset as well as its comparison to the compe-tence models for the roles of Scrum Master, Product Owner and agile analyst. We have identified 70 unique agile mindset elements from literature and 5 in-terviews with experts. Based on an opinion survey among 52 agile practitioners we evaluated the importance of 26 selected elements...
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Relation between steel microstructure and its properties in inert and aggressive environments
PublicationBadano stale 26H2MF i 34HNM poddane różnej obróbce cieplnej. Mikrostruktury stali zmieniały sie od martenzytu i bainitu do odpuszczonego martenzytu i sorbitu. Obserwowano spadek energii zniszczenia, wydłużenia i przewżenia w próbie rozciągania z małą prędkością i równoczesnej polaryzacji katodowej do 100 mA/cm2. Degradacji towarzyszyła zmiana przełomu z ciągliwego na kruchy łupliwy i quasiłupliwy.
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Dopants and gas modifiers in ion mobility spectrometry
PublicationThe ion mobility techniques, including the most commonly used drift-tube ion mobility spectrometry (IMS) and differential mobility spectrometry (DMS), are used successfully for the detection of a wide range of organic compounds in the gas phase. In order to improve detection quality, admixtures are added to gas streams flowing through the detector. Dopants mostly prevent the ionization of interfering chemicals however, better detection...
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PTR-MS and GC-MS as complementary techniques for analysis of volatiles: A tutorial review
PublicationThis tutorial review is a critical commentary on the combined use of two instrumental analytical techniques, namely GC-MS and PTR-MS. The first mention of such an analytical approach likely appeared after the year 2000 and despite many advantages, it has not been applied very often. Therefore, the aim of this article is to elaborate on the concept of their combined use and to provide a curse tutorial for those considering taking...
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Development and validation of GC–MS/MS method useful in diagnosing intestinal dysbiosis
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Recent Applications of 1D GC-MS and 2D GC-MS in Foodomics Studies
PublicationGas chromatography coupled with mass spectrometry and food chemistry have been tightly linked since the 1960s. This setup is also an integral part of the omics studies when it comes to low mass metabolites. Therefore, the marriage of GC-MS and foodomics is obvious. Two-dimensional gas chromatography coupled with mass spectrometry fits perfectly within the latest trends in foodomics, since it is tailored for holistic food analysis....
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Diminshed toxicity of C-1748, 4-methyl-9-hydroxyethylamino-1-nitroacridine, compared with its demethyl analog, C-857, corresponds to its resistance to metabolism in HepG2 cells
PublicationThe narrow "therapeutic window" of anti-tumour therapy may be the result of drug metabolism leading to the activation or detoxification of antitumour agents. The aim of this work is to examine (i) whether the diminished toxicity of a potent antitumour drug, C-1748, 9-(2'-hydroxyethylamino)-4-methyl-1-nitroacridine, compared with its 4-demethyl analogue, C-857, results from the differences between the metabolic pathways for the...
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Diminished toxicity of C-1748, 4-methyl-9-hydroxyethylamino-1-nitroacridine, compared with its demethyl analog, C-857, corresponds to its resistance to metabolism in HepG2 cells
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CE-MS and GC-MS as “Green” and Complementary Methods for the Analysis of Biogenic Amines in Wine
PublicationTwo novel complementary analytical methods, namely an extraction-free capillary electrophoresis coupled to mass spectrometry (CE-MS) and direct immersion-solid-phase microextraction combined with gas chromatography-mass spectrometry (DI-SPME-GC-MS), have been developed and successfully applied for the determination of biogenic amines (BAs) in wine and fruit wine. They have been rigorously compared to each other in terms of various...
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Preparation of Internal Standards for 2D-UPLC-MS/MS Quantification of Noncanonical DNA Bases
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Development and Validation of SPE-HPLC-MS/MS Method for Determining Cyclophosphamide in Surface Waters
PublicationA rapid and selective method for trace amounts determination of cyclophosphamide in surface water samples has been developed. A solid phase extraction SPE method for extraction and clean-up procedure has been optimized for determination by reversed-phase high-performance liquid chromatography with tandem mass spectrometry. The analyses proceed in the positive ion mode by means of the electrospray ionization method (ESI). Clean...
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Robust HPLC–MS/MS method for levofloxacin and ciprofloxacin determination in human prostate tissue
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Development and validation of an LC–MS/MS method for the determination of biogenic amines in wines and beers
PublicationBiogenic amines are group of organic, basic, nitrogenous compounds that naturally occur in plant, microorganism, and animal organisms. Biogenic amines are mainly produced through decarboxylation of amino acids. They are formed during manufacturing of some kind of food and beverages such as cheese, wine, or beer. Histamine, cadaverine, agmatine, tyramine, putrescine, and b-phenylethylamine are the most common biogenic amines found...
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Numerical Analysis of Impact of Energy Buoy Anchoring Configurations on its Motion and Efficiency
PublicationThis paper presents a numerical analysis of the impact of energy buoy mooring configurations on its movement on the wave and effectiveness. The method used to analyse the buoy movement modelling in six degrees of freedom was described in a paper presented at the Conference 2011. Simulations of the buoy movement in regular wave and power calculations were conducted for several configurations of anchoring systems and position of...
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Equitable and semi-equitable coloring of cubic graphs and its application in batch scheduling
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Mercury fractionation in marine macrofauna using thermodesorption technique: Method and its application
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Water uptake in protective organic coatings and its reflection in measured coating impedance
PublicationWater uptake in commercially available epoxy coating on mild steel using impedance spectroscopy and gravimetry was studied. The water content in the coating was determined using the Brasher-Kingsbury equation and various methods of coating capacitance calculation used in the literature. The obtained results were compared with reference gravimetric data. An overestimation of values obtained from impedance data in relation to gravimetric...
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Standard deviation as the optimization criterion in the OptD method and its influence on the generated DTM
PublicationReduction of the measurement dataset is one of the current issues related to constantly developing technologies that provide large datasets, eg. laser scanning. It could seems that presence and evolution of processors computer, increase of hard drive capacity etc. is the solution for development of such large datasets. And in fact it is, however, the “lighter” datasets are easier to work with. Additionally, reduced datasets can...
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Regulated Assembly of LPS, Its Structural Alterations and Cellular Response to LPS Defects
PublicationDistinguishing feature of the outer membrane (OM) of Gram-negative bacteria is its asymmetry due to the presence of lipopolysaccharide (LPS) in the outer leaflet of the OM and phospholipids in the inner leaflet. Recent studies have revealed the existence of regulatory controls that ensure a balanced biosynthesis of LPS and phospholipids, both of which are essential for bacterial viability. LPS provides the essential permeability...
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Effect of aeration of antibiotic-loaded bone cement on its properties and bactericidal effectiveness
PublicationBACKGROUND: Antibiotic-loaded bone cements are now widely used in medicine. They are able to locally deliver antibiotic particles and they allow treat or protect against infection. It is assumed that the bactericidal effectiveness of bioactive bone cements depend on the parameters of its production. Hence, the aim of this study was to check the effect of aeration of bone cement before mixing the components on its properties as...
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The propeptide of human thyroid peroxidase is not required for its cellular, enzymatic or immunological activity
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Adaptative Potential of the Lactococcus Lactis IL594 Strain Encoded in Its 7 Plasmids
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Degradation of diclofenac by new bacterial strains and its influence on the physiological status of cells
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Rapid naming ability and its relationship to reading in Polish-speaking children with dyslexia
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Influence of Laser Modification on the Surface Character of Biomaterials: Titanium and Its Alloys—A Review
PublicationLaser surface modification is a widely available and simple technique that can be applied to different types of materials. It has been shown that by using a laser heat source, reproducible surfaces can be obtained, which is particularly important when developing materials for medical applications. The laser modification of titanium and its alloys is advantageous due to the possibility of controlling selected parameters and properties...
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Mechanism of Biofilm Formation on Installation Materials and Its Impact on the Quality of Tap Water
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Effect of Long-Term Potato Starch Retention with Citric Acid on Its Properties
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The Advancement of Biodegradable Polyesters as Delivery Systems for Camptothecin and Its Analogues—A Status Report
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A strongly bound OF3- anion and its unstable parent neutral OF3 species
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Improvement of charge separation in TiO 2 by its modification with different tungsten compounds
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Digital Cartographic Generalization – Study of Its Thresholds and Stages in Example of Cartographic Line
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Outdoor Advertising in Public Space and its Legal System in Poland over the Centuries
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Viscoplastic properties of coated textile material ''Panama'' and its usage for hanging roofs.
PublicationPodano sposób identyfikacji parametrów materiałowych lepkoplastycznego prawa Bodnera-Partoma i prawa Chaboche´a. Przedstawiono model sieci gęstej pozwalający na zastosowanie wyników prób jednoosiowego rozciągania do rzeczywistej tkaniny. Pokazano zastosowanie wyników w analizie statycznej i dynamicznej przekrycia wiszącego typu hypar poddanego wstępnemu naprężaniu. Przeanalizowano zmianę geometrii i częstości drgań własnych.
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Influence of the steam within seals and glands of the turbine on its rotor motion stability.
PublicationPrzedstawiono metodę obliczania charakterystyk dynamicznych wpływu parowych uszczelnień turbin na ich dynamikę i stateczność ruchu wirników. Zarysowano model ''masowy'' uszczelnienia. Podano przykłady zastosowań.
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Using open source LMS Moodle in postgraduate studies at Gdansk University of Technology.
PublicationW artykule zaprezentowano doświadczenia Centrum Edukacji Niestacjonarnej Politechniki Gdańskiej na polu wdrażania systemów zarządzania nauczaniem na odległość w edukacji i korzystania z oprogramowania z otwartym kodem źródłowym (ang. open source) na przykładzie projektów Leonardo da Vinci EMDEL i V Ramowy CURE.
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Implementation of didactic simulation models in Open Source and SCORM compliant LMS systems.
PublicationModele symulacyjne są cenną pomocą w procesie dydaktycznym. Ich zastosowanie w systemach komputerowego wspomagania nauczania znacząco podnosi ich efektywność oraz pozwala na przeprowadzanie wirtualnych ćwiczeń laboratoryjnych (na przykład podczas nauczania na odległość). Niestety stosowane obecnie systemy LMS (Lerning Management System) nie są zadowalająco przystosowane do obsługi symulacyjnej zawartości dydaktycznej. W artykule...
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On the possibility of estimating fish length distribution from its target strength statistics.
PublicationArtykuł przedstawia koncepcję odtwarzania rozkładu długości ryb na podstawie danych z przeszukiwań akustycznych. Wykorzystując metody odwrotne w statystycznym przetwarzaniu rozkładu siły celu ryb pokazano, że przy pewnych założeniach co do rozkładu położenia ryb w wiązce, możliwa jest estymacja szukanego rozkładu długości ryb.
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Toxicity of sediments and its relations with the mobility of pollutants on the basis of studies of Lake Turawskie
PublicationPraca niniejsza jest raportem z badań nad toksycznością i jej powiązaniem z mobilnością zanieczyszczeń. Moblilność zanieczyszczeń uzależniona jest od pH próbki. Próbki pobierano z Jez. Turawskiego, toksyczność była mierzona przy użyciu testu Microtox (AZUR Environmental, USA).
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Relationship between microstructure of laser alloyed C45 steel and its cavitation resistance.
PublicationW pracy przedstawiono badania wpływu laserowo kształtowanej mikrostruktury na stali C45 po stopowniu różnymi kompozycjami proszków metali na własności kawitacyjne warstwy wierzchniej. Badania prowadzono w początkowym stadium erozji kawitacyjnej. Stwierdzono, że lepszą odporność kawitacyjną osiąga się gdy mikrostruktura jest podatna do umacniania odkształceniowego np. w obecności pewnej ilości austenitu w strukturze.
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Relationship between microstructure of laser alloyed of C45 steel and its cavitation resistance.
PublicationPrzedstawiono badania odporności kawitacyjnej stali C45 po laserowym stopowaniu jej powierzchni proszkami Mn., Ni, Cr, Nb, Mo, Co. Stwierdzono, że warstwa wierzchnia posiada wyższą odporność kawitacyjną jeśli w jej mikrostrukturze występuje pewna ilość austenitu zwiększająca podatność do wzmacniania odkształceniowego.
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Nitrogen monitoring in atmospheric deposition and its removal from municipal and industrial wastewater
PublicationBadano zmiany stężenia azotu w opadach atmosferycznych oraz warunki usuwania azotu ze ścieków komunalnych i przemysłowych. Badano wpływ wybranych sulfonamidów na proces nitryfikacji oraz oznaczano ich stopień biodegradacji. Stwierdzono, że sulfonamidy są substancjami, które hamują procesy biologicznego oczyszczania ścieków, jak również w niskim stopniu ulegają biodegradacji.
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Characteristics, Chemical Modification Processes as well as the Application of Silica and its Modified Forms
PublicationThe variety of chemical modifications of the surface of silica and its modified forms cause thesematerials to find a consistently wider scope of application. In the publication, the characteristicsof silica, silica gel, aerogel and xerogel are presented. The obtainment, application and propertiesof these materials are discussed. Methods of chemical modifications of surface structures withthe use of different chemical compounds...
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An optimization approach to coexistence of Bluetooth and Wi-Fi networks operating in ISM environment
PublicationW artykule rozważono problem wzajemnych interferencji pomiedzy urządzeniami standardów IEEE 802.11b oraz Bluetooth (BT). Zaproponowano model optymalizacyjny bazujący na podejściu programowania liniowego. Uzyskano znaczącą porawę wykorzystania pasma ISM w przypadku koegzystencji sieci rozważanych standardów.
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Shaking table experimental study on diagnosis of damage and its evaluation in steel structure
PublicationCelem artykułu jest pokazanie wyników badań eksperymentalnych przeprowadzonych na stole sejsmicznym dotyczących identyfikacji uszkodzeń modelu dwukondygnacyjnej konstrukcji stalowej. Uszkodzenie zdefiniowano poprzez spadek sztywności i symulowano poprzez zamianę słupów modelu na elementy o mniejszym przekroju poprzecznym. Wyniki badań pokazują charakterystyczny spadek wartości naturalnych częstotliwości konstrukcji wraz ze wzrostem...
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In search of environmental role of cylindrospermopsin: A review on global distribution and ecology of its producers
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Chlorpromazine-induced hyperprolactinemia in a young female and its relation with fibrocystic breast disease
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