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Human Factors and Functional Safety Analysis in Designing the Control Rooms of Industrial Hazardous Plants
PublikacjaIn this work some aspects of human factors and functional safety analysis in designing the control rooms of industrial hazardous plants are presented. The “defence in depth” (D-in-D) concept is outlined. Some designing issues of the alarm system (AS) with regard to human factors to be supported using the human reliability analysis (HRA) are discussed. The AS and decision support system (DSS), when properly designed, would contribute...
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Equivalent axle load factors for design of rigid pavements derived from fatigue criteria
PublikacjaArtykuł przedstawia określenie współczynników równoważności osi dla nawierzchni sztywnych na podstawie kryteriów zmęczeniowych stosowanych w mechanistyczno-empirycznej metodzie projektowania nawierzchni drogowych. Przedstawiono kryteria zmęczeniowe z wybranych metod projektowania i analizy nawierzchni sztywnych. Kryteria te zostały użyte do wyprowadzenia wzorów do obliczania współczynników równoważności obciążenia osi. Stwierdzono,...
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Neurotrophic factors in human milk in early lactation and the effect of Holder and microwave pasteurization on their concentrations
PublikacjaObjective: The objective of this study was to determine the level of brain-derived neurotrophic factor (BDNF) and glial cell line-derived neurotrophic factor (GDNF) in human milk in the first two weeks of breastfeeding and compare of the effects of Holder pasteurization (HoP, 62.5°C, 30 minutes) and microwave pasteurization (MP) at constant temperature (62.5°C) on the concentraion of both neurotrophic factors (NFs). Methods: Concentration...
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Reliable EM-driven size reduction of antenna structures by means of adaptive penalty factors
PublikacjaMiniaturization has become of paramount importance in the design of modern antenna systems. In particular, compact size is essential for emerging application areas such as internet of things, wearable and implantable devices, 5G technology, or medical imaging. On the other hand, reduction of physical dimensions generally has a detrimental effect on antenna performance. From the perspective of numerical optimization, miniaturization...
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Monte Carlo simulations of the fracture resistance degradation of asphalt concrete subjected to environmental factors
PublikacjaThe paper presents the results of laboratory tests of SCB (semi-circular beam) samples of asphalt concrete, subjected to the destructive effect of water and frost as well as the aging processes. The determined values of material parameters show significant dispersions, which makes the design of mixtures difficult. Statistical analysis of the test results supplemented by computer simulations made with the use of the proprietary...
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Environmental characteristics of a tundra river system in Svalbard. Part 2: Chemical stress factors
PublikacjaBacterial communities in the Arctic environment are subject to multiple stress factors, including contaminants, although typically their concentrations are small. The Arctic contamination research has focused on persistent organic pollutants (POPs) because they are bioaccumulative, resistant to degradation and toxic for all organisms. Pollutants have entered the Arctic predominantly by atmospheric and oceanic long-range transport,...
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Heavy Metals in Sediments of Urban Streams: Contamination and Health Risk Assessment of Influencing Factors
PublikacjaSediments of two urban streams in northern Poland outflowing to the Baltic Sea were assessed to explain the spatial variation in relation to urbanization level of the catchment, the role of retention tanks (RTs) and identification of pollution level. During the 3 month period of investigation sediment samples were collected from the inflow (IN) and outflow (OUT) of six RTs located on streams for flood protection. Six heavy metals...
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Ischemic stroke in general practice - risk factors, prognosis - prospective single center study
PublikacjaBackground. Ischemic stroke is one of the leading causes of death and disability in Poland, in the European Union and in the United States. Awareness related to the risk factors, particularly the modifiable ones, is of crucial importance in general practice and may improve early and long-term prognoses. Objectives. The aim of this study was to assess the risk factors and half-year survival rate in patients with ischemic stroke...
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Bearing testing machine with rotating load vector.
PublikacjaW pracy przedstawiono koncepcję konstrukcyjną i prototyp stanowiska badawczego z wirująca reakcją łożyskową przeznaczonego do testowania wytrzymałości zmęczeniowej warstw ślizgowych w łożyskach poprzecznych. Konstrukcja i przeznaczenie maszyny zbudowanej w laboratorium tribologicznym Politechniki Gdańskiej jest zgodna z zaleceniami normy ISO 7905. Przeanalizowano zalety i wady maszyny badawczej o takim wzorcu obciążenia testującego.
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A remark on singular sets of vector bundle morphisms
PublikacjaIf characteristic classes for two vector bundles over the same base space do not coincide, then the bundles are not isomorphic. We give under rather common assumptions a lower bound on the topological dimension of the set of all points in the base over which a morphism between such bundles is not bijective. Moreover, we show that this set is topologically non-trivial.
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A ferrocene-templated Pd-bearing molecular reactor
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Support Vector Machines in Biomedical and Biometrical Applications
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A sector-an industry? Definitional challenges in economic sciences
Publikacjathe aim of our paper is to present definitional challenges that we as scholars and teachers face while attempting to relate to a sector and an industry terms in economic analyses and from strategic management perspective. we employ secondary research and analyse the state of the academic discourse and common usages of the above terms. we argue that for an economic statistician classifications should be consistent and highlight...
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Concentration in ICTs sector - cross country analysis
PublikacjaIn the chapter below, the author present inequalities in sector of new information and communication technologies. Having in mind inequalities we can also discuss concentration issues, and the concentration itself is a problem to which the author refers on first place. The paper is organized as following: first basic measures of concentration are defined, after we can read a discussion referring to concentration in ICTs sector...
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Existence of periodic orbits for a perturbed vector field
PublikacjaPrzy nałożeniu pewnego warunku na odwzorowanie Poincarego, wyrażonego w języku indeksów iteracji, dowodzi się istnienia orbit periodycznych dla zaburzonego pola wektorowego.
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Text Documents Classification with Support Vector Machines
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Innovativeness assessment of the SME sector in the Pomeranian region
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STRUCTURE AND ALGORITHMS OF A DIAGNOSTIC DEVICE IN A WHEELED TRACTOR
PublikacjaDiagnostic device monitors the tractor’s technical condition and identifies the location of damaged components during operation. The diagnostic device detects and identifies the following types of defects: functional defects (uf) which affect performance, exhaust defects (ue) which increase toxic emissions and fuel consumption, defects that jeopardize driving safety (us), defects that affect engine performance (ud). The key component...
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Knowledge Safety – Insights from the SME Sector
PublikacjaPurpose: This paper aims to explore the topic of knowledge safety, defined as the state of knowledge being safe from loss, leakage, attrition, oblivion, waste or theft. The paper first presents a theoretical background and review of previous studies on knowledge loss and ways of overcoming it, and then illustrates the topic of knowledge safety with ten case studies from the small and medium-sized enterprises (SMEs) sector. Methodology:...
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Rosyjskie piśmiennictwo naukowe z zakresu przekładoznawstwa. Rzecz o monografii bibliograficznej Ewy Konefał pt. Przekładoznawstwo rosyjskie. Tom 1: Autoreferaty dysertacji 1937–2015 (Wydawnictwo Uniwersytetu Gdańskiego, Gdańsk 2016) [Russian academic literature in the field of translation studies. About Eva Konefał’s bibliographic monograph Russian translation studies. Volume 1: Abstracts of dissertations 1937-2015 (Publishing house of Gdansk University, Gdansk 2016)]
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Trends in In Silico Approaches to the Prediction of Biologically Active Peptides in Meat and Meat Products as an Important Factor for Preventing Food-Related Chronic Diseases
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Pre-existing arterial hypertension as a risk factor for early left ventricular systolic dysfunction following (R)-CHOP chemotherapy in patients with lymphoma
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Rozwój cywilizacyjny i technologiczny jako czynnik kształtujący obraz miejskiej przestrzeni = Technological and civizational evolution as a factor that forms the urban space
PublikacjaDostrzeżenie zależności pomiędzy formą, funkcjonalnością, estetyką jest dla projektanta istotną częścią procesu projektowego.Walory estetyczne nie koniecznie muszą się łączyć z funkcjonalnością. Widoczne jest to na przykładzie rozwoju miast. Stare struktury miejskie nie odpowiadają potrzebom współczesnych mieszkańców.Jednocześnie istnieje potrzeba troski o nie. Pojawia się także kwestia odpowiedzi jak zachować takie miasta. czy...
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DIAGNOSTIC INFORMATION ANALYSIS OF QUICKLY CHANGING TEMPERATURE OF EXHAUST GAS FROM MARINE DIESEL ENGINE PART I SINGLE FACTOR ANALYSIS
PublikacjaIn this paper, attention was paid to the problem of low controllability of marine medium- and high-speed engines during operation, which significantly limits the parametric diagnosis. The measurement of quickly changing temperature of engine exhaust gas was proposed, the courses of which can be a source of diagnostic information. The F statistic of the Fisher-Snedecor distribution was chosen as a statistical tool. Laboratory tests...
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Hierarchical influence diagrams for incorporating human and organizational factors in risk assessment of hazardous industrial systems
PublikacjaArtykuł dotyczy podstawowych zagadnień związanych z czynnikami organizacyjnymi i ludzkim w analizie ryzyka złożonych systemów przemysłowych. Analizuje się podobieństwa i różnice pomiędzy hierarchicznymi diagramami wpływu i hierarchicznym procesem analizy decyzyjnej i na tej podstawie proponuje się uogólnione podejście do rozważanej analizy decyzyjnej uwzględniające dane rozmyte.
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Factors determining accumulation of bisphenol A and alkylphenols at a low trophic level as exemplified by mussels Mytilus trossulus
PublikacjaThe aim of the study was to investigate abiotic and biotic factors influencing the accumulation of endocrine disrupting compounds (EDCs) such as bisphenol A (BPA), 4-tert-octylphenol (OP) and 4- nonylphenol (NP) in mussels Mytilus trossulus from the Gulf of Gdansk (Southern Baltic). The key abiotic factor influencing BPA, OP and NP accumulation in mussels is their hydrophilicity/lipophilicity, which affects their main assimilation...
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Data from the Survey on Entrepreneurs’ Opinions on Factors Determining the Employment of the Gdańsk University of Technology Graduates
PublikacjaThe dataset includes data from a survey on factors determining the employment of the Gdańsk University of Technology (Gdańsk Tech) graduates’ in the opinion of entrepreneurs. The survey was conducted in 2017. The research sample included 102 respondents representing various firms from the Pomeranian Voivodeship, Poland. The study concerned i.a. factors determining the decision to hire a candidate, methods of recruiting employees,...
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Catheter-induced coronary artery and aortic dissections. A study of the mechanisms, risk factors, and propagation causes
PublikacjaBackground: Only the incidence, management, and prognosis of catheter-induced coronary artery and aortic dissections have been systematically studied until now. We sought to evaluate their mechanisms, risk factors, and propagation causes. Methods: Electronic databases containing 76,104 procedures and complication registries from 2000– –2020 were searched and relevant cineangiographic studies adjudicated. Results: Ninety-six dissections...
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PCDDs, PCDFs and PCBs in locally produced foods as health risk factors in Silesia Province, Poland
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Watershed characteristics and climate factors effect on the temporal variability of mercury in the southern Baltic Sea rivers
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Risk factors of depressive and anxiety symptoms 8 years after coronary artery bypass grafting
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Relationship between gender and clinical characteristics, associated factors, and hypertension treatment in patients with resistant hypertension
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Reference intervals for common carotid intima-media thickness measured with echotracking: relation with risk factors
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Bulky DNA adducts in human sperm: relationship with fertility, semen quality, smoking, and environmental factors
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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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Serum levels of IL-6, IL-8 and CRP as prognostic factors in epithelial ovarian cancer
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Critical factors for the performance of chip array-based electrical detection of DNA for analysis of pathogenic bacteria
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Determination of Equivalent Axle Load Factors on the Basis of Fatigue Criteria for Flexible and Semi-Rigid Pavements
PublikacjaArtykuł przedstawia analizę współczynników równoważności obciążenia osi na podstawie kryteriów zmęczeniowych stosowanych w mechanistyczno-empirycznych metodach projektowania nawierzchni. Określono wzory służące do obliczania współczynnika w oparciu o szereg kryteriów zmęczeniowych. Podano wartości liczbowe współczynników.
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Selected Psychosocial Factors, Nutritional Behavior, and the Analysis of Concentrations of Selected Vitamins in Patients with Cardiovascular Diseases
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Sharing housework can be healthy: cultural and psychological factors influencing men’s involvement in household maintenance
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COVID-19-Associated Mucormycosis (CAM): Case-Series and Global Analysis of Mortality Risk Factors
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Odour Emissions of Municipal Waste Biogas Plants—Impact of Technological Factors, Air Temperature and Humidity
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Knowledge-based functional safety and security management in hazardous industrial plants with emphasis on human factors
PublikacjaExisting and emerging new hazards have significant potential to impact destructively operation of technical systems, hazardous plants, and systems / networks of critical infrastructure. The programmable control and protection systems play nowadays an important role in reducing and controlling risk in the process of hazardous plant operation. It is outlined how to deal with security related hazards concerning such systems to be...
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Nitric Oxide-Dependent Pathways as Critical Factors in the Consequences and Recovery after Brain Ischemic Hypoxia
PublikacjaBrain ischemia is one of the leading causes of disability and mortality worldwide. Nitric oxide (NO), a molecule that is involved in the regulation of proper blood flow, vasodilation, neuronal and glial activity constitutes the crucial factor that contributes to the development of pathological changes after stroke. One of the early consequences of a sudden interruption in the cerebral blood flow is the massive production of reactive...
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Knowledge management and factors influencing its implementation in small KIBS firms – evidence from Poland
PublikacjaPurpose – Even if the notion of knowledge management (KM) has been introduced more than three decades ago, the application of this concept in the context of small firms has still not been sufficiently explored. The relatively few contributions, however, agree on the fact that small companies do not manage knowledge the same way as their larger counterparts. In order to fill this gap, the present paper aims to the investigate the...
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Dependence of Housing Real Estate Prices on Inflation as One of the Most Important Factors: Poland’s Case
PublikacjaThe study aimed to examine the impact of inflation on the real estate market using Polish panel data for the last 13 years. It is based on a panel model, where price changes of one square meter of housing are determined as a function in changes of inflation, the central bank's base rate, dwellings built, as well as new mortgage loans. The quarterly dynamics of the average price of 1 square meter of housing in...
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Numerical simulation of the influence of the selected factors on the performance of a concrete road barrier H2/W5/B
PublikacjaThis paper discuss the influence of selected factors on the performance of a concrete road barrier H2/W5/B. Modelling techniques of a concrete road safety system were briefly discussed. Comparison to the full scale crash test results has been shown. The concrete road safety barrier has been investigated for evaluation of the overall damage after collision under various initial conditions. The failure assessment criterion has been...
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Host and pathogen factors in Klebsiella pneumoniae upper urinary tract infections in renal transplant patients
PublikacjaPurpose . To analyse the role of virulence factors (VFs) and host in Klebsiella pneumoniae upper urinary tract infections (UTIs) in renal transplant (RTx) recipients. Methodology. Clinical and demographic data were registered prospectively. Phylogenetic background of K. pneumoniae isolates was analysed by PCR melting profiles (MP) and the following VFs genes: fimH-1, uge, kpn, ycfM, mrkD, rmpA, magA, hlyA, cnf-1, irp-1, irp-2,...
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Understainding solid-phase microextraction: key factors influencing the extraction process and trends in improving the technique
PublikacjaAnalytical chemists are faced with the daunting challenges of accurately monitoring the state of the environment and the processes taking place in it and of determining an enormous range of analytes often present in trace and ultratrace amounts in sample matrixes with complex or variable compositions. Further challenges are presented by the need to introduce new methodologies into current analytical practice and equipment to comply...
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Speed, Alcohol and Safety Belts as Important Factors Influencing the Number of Fatalities in Road Accidents in the Voivodships
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