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Search results for: ACCIDENT SUSCEPTIBILITY, SAFETY OF TRANSPORTATION, MARITIME RISK AND SAFETY, WATERWAYS COMPLEXITY, TRAFFIC COMPLEXITY, HUMAN RELIABILITY, HUMAN PERFORMANCE
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Can the SARS-CoV-2 virus damage human hearing and balance?
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Activities of genes controlling sphingolipid metabolism in human fibroblasts treated with flavonoids
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Molecular action of isoflavone genistein in the human epithelial cell line HaCaT
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Lifespan of etoposide-treated human neutrophils is affected by antioxidant ability of quercetin
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Temozolomide and sorafenib as programmed cell death inducers of human glioma cells
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Interaction of selected divalent metal ions with human ataxin-3 Q36
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The Influence of The Light-Activated Titania P25 on Human Breast Cancer Cells
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Identification of two novel mutations in human acute myeloid leukemia cases
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Impact of Infant and Maternal Factors on Energy and Macronutrient Composition of Human Milk
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The role of the enzymatic antioxidant system in cylindrospermopsin-induced toxicity in human lymphocytes
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Toxicity of cylindrospermopsin in human lymphocytes: Proliferation, viability and cell cycle studies
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Modeling human thinking about similarities by neuromatrices in the perspective of fuzzy logic
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Investigating Preattentive Features for Modelling Human Behaviour During Visual Search
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Preventing Work-Related Musculoskeletal Disorders in Manufacturing by Digital Human Modeling
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Procedure of determination of volatile trihalomethanes in human urine with pervaporation and gas chromatography
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Metal status in human endometrium: Relation to cigarette smoking and histological lesions
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Non-Newtonian lubrication of human hip joint for unsteady impulsive motion
PublicationTematem niniejszej pracy są parametry smarowania lepkosprężystą cieczą synowialną stawu biodrowego człowieka w czasie kilku, kilkunastu a nawet kilkudziesięciu mikrosekund po doznanym urazie. W niniejszej pracy rozpatruje się urazy wywołujące zmniejszenie lub zwiększenie wysokości i zmiany kształtu szczeliny stawu, które to zmiany po pewnym określonym czasie po doznanym urazie mogą zanikać. W konsekwencji takich urazów i to w...
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Procedure of determination of volatile trihalomethanes in human urine with perwaporation and gas chromatography
PublicationPraca przedstawia wyznaczanie podstawowych parametrów walidacyjnych nowej procedury oznaczania lotnych związków chlorowcoorganicznych z grupy trihalometanów w próbkach moczu ludzkiego, opartej na zastosowaniu:- techniki perwaporacji na etapie izolacji i wzbogacania analitów;- bezpośredniego dozowania próbek ekstraktów (permeatu) do kolumny chromatograficznej;- chromatograficznego rozdzielanie mieszaniny na poszczególne składniki;-wykorzystaniu...
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An electrochemical interface for direct analysis of amlodipine in tablets and human blood samples
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Increased expression of PELP1 in human sperm is correlated with decreased semen quality
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Expression of ghrelin and ghrelin functional receptor GHSR1a in human pituitary adenomas
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Numerical contribution to the viscoelastic magnetic lubrication of human joint in periodic motion.
PublicationPraca przedstawia rozwiązania problemu smarowania stawów człowieka w układzie współrzędnych ortogonalnych krzywoliniowych dla ruchu nieustalonego okresowego w polu magnetycznym. Uwzględnia się lepkosprężyste właściwości cieczy synowialnej w trakcie smarowania
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Studies of the effects of antifungal cationic derivatives of amphotericin B on human erythrocytes.
PublicationBadano nową grupę kationowych pochodnych amfoterycyny B pod kątem zależności pomiędzy ich zdolnością do asocjacji i selektywną toksycznością. We wszystkich przypadkach stosowano amfoterycynę B jako związek odniesienia. Jako miarę efektu toksycznego in vitro badanych związków stosowano wypływ wewnątrzkomórkowego potasu oraz hemolizę. Miarą aktywności przeciwgrzybowej był MIC i utrata potasu wewnatrzkomórkowego. Do oceny stopnia...
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A novel chemiluminescent immunoassay for detection of Toxoplasma gondii IgG in human sera
PublicationThis study describes Toxoplasma gondii IgG chemiluminescent immunoassay (CLIA) based on the use of a novel immunochemical reagents in the form of the conjugates of original acridinium ester (AE) labels attached to antibodies and SAG2-GRA1-ROP1L chimeric antigen and shows that this test is useful for diagnostic purposes.
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IMPLANT USED IN HERNIA REPAIR UNDER PHYSIOLOGICAL MOVEMENTS OF HUMAN ABDOMEN
PublicationThe study deals with the mechanical behaviour of implant used in repair of abdominal hernia. The influence of orientation of the orthotropic implants in different areas of abdominal wall is studied.
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Numerical Model of the Aortic Valve Implanted Within Real Human Aorta
PublicationCardiovascular system diseases are the main cause of deaths in developed and developing countries. The main reasons are myocardial infarction, heart failure, stroke and valvular diseases. These are caused mainly by arteriosclerosis. The valvular diseases involve a significant burden for the health care system and their frequency is rising with the patient age. This work describes the tools and numerical models appropriate for modeling...
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Measurements of surface roughness of heads of human hip joints in lubrication aspects
PublicationW niniejszej pracy przedstawiono wyniki pomiarów chropowatości chrząstki stawowej na powierzchniach głów kostnych stawu biodrowego człowieka. Pomiarów dokonano przy pomocy czujników mechanicznych i laserowych. Praca zawiera wyniki analizy statystycznej.
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Investigations to realize thermal, humid and human comfort in modern living houses.
PublicationPrzedstawiono badania nad komfortem cieplnym, wilgotnościowym i psychicznym w domkach mieszkalnych. Wykonano pomiary oraz przeprowadzono ankiety. Zastosowano różne sposoby wentylacji.
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Verification of safety in low-voltage power systems without nuisance tripping of residual current devices
PublicationLow-voltage power systems require initial and periodical verification to check the effectiveness of protection against electric shock. As a protection in case of fault, automatic disconnection of supply is most often used. To verify such a protection measure, the earth fault loop impedance or resistance is measured. This measurement is easy to perform in circuits without residual current devices. When residual current devices are...
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The Medical Relevance of Toxoplasma Infections in Terms of the Safety of Blood Recipients under Immunosuppression—A Meta-Analysis
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Safety and efficacy of lenabasum in a phase 2 randomized, placebo-controlled trial in adults with cystic fibrosis
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Safety and outcomes of laparoscopic sleeve gastrectomy in patients older than 60: a case-control study
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Evaluation of quality of electric power distribution network elements in order to maintain functional and technical safety
PublicationPraca dotyczy wieloatrybutowego systemu oceny elementów sieci elektroenergetycznej do celów zapewnienia jej bezpieczeństwa funkcjonalnego i technicznego. Rozważana sieć składa się z dużej liczby elementów, ocenianych jakościowo i ilościowo. Zaproponowana metoda składa się z dwóch etapów: (i)wstępnego wyboru niewielkiej liczby elementów niebezpiecznych w oparciu o małą liczbę informacji (ii) wykonaniu uszeregowania wybranych elementów...
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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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A model of occurrence of the situations endangering inland waterways passanger ships and the environment
PublicationZaproponowano czterostanowy semimarkowski model pojawiania się sytuacji zagrażających pasażerskim statkom śródlądowym. Model ten został opracowany w formie semimarkowskiego procesu dyskretnego w stanach i ciągłego w czasie, którego wartościami są rodzaje stanów, interpretowanych jako sytuacje: normalna, skomplikowana, niebezpieczna oraz awaryjna. Zobrazowano przykładową realizację procesu zmian sytuacji, jakie mogą pojawić się...
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A method for predicting main propulsion power for inland waterways push trains
PublicationPraca zawiera założenia teoretyczne i model matematyczny metody służącej do wyznaczania wstępnej, przybliżonej prognozy wielkości zapotrzebowanej mocy napędu głównego śródlądowego zestawu pchanego.
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Towards a modification of a regulatory framework aiming at bunker oil spill prevention from ships - A design aspect of bunker tanks vents location guided by CFD simulations
PublicationAlthough accidental bunker oil spills at seaway are relatively rare events, they can be pose real threat to the natural marine environment. One of the reasons for the bunker spill to occur is a design failure; one of the ways it can demonstrate is an improper location or height of vent heads, leading to a bunker oil discharge during heavy rolling, due to sloshing phenomenon. Design of a ship and her systems is guided by various...
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Frequency-Based Regularization for Improved Reliability Optimization of Antenna Structures
PublicationThe paper proposes a modified formulation of antenna parameter tuning problem. The main ingredient of the presented approach is a frequency-based regularization. It allows for smoothening the functional landscape of the assumed cost function, defined to encode the prescribed design specifications. The regularization is implemented as a special penalty term complementing the primary objective and enforcing the alignment of the antenna...
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Modelling the loss of time caused by traffic incidents on motorways
PublicationFor each road incident important factors like location, capacity reduction, traffic management, duration of road incidents and amount of traffic should be defined. All performer operations and effects of incidents affect the capacity of the road, average speed, time loss, vehicle queues and traffic jams. In the article road incidents were divided into planned and unexpected. Statistical analysis prepared using the database of traffic...
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Fading Modeling in Maritime Container Terminal Environments
PublicationIn this paper, an analytical model for slow and fast fading effects in maritime container terminals is derived, from fitting distributions to the results of measurements performed in an actual operational environment. The proposed model is composed of a set of equations, enabling to evaluate fading statistical distribution parameters for different system and environments conditions, as a function of frequency, base station antenna...
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Adversarial attack algorithm for traffic sign recognition
PublicationDeep learning suffers from the threat of adversarial attacks, and its defense methods have become a research hotspot. In all applications of deep learning, intelligent driving is an important and promising one, facing serious threat of adversarial attack in the meanwhile. To address the adversarial attack, this paper takes the traffic sign recognition as a typical object, for it is the core function of intelligent driving. Considering...
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Susceptibility to Degradation in Soil of Branched Polyesterurethane Blends with Polylactide and Starch
PublicationA very important method of reducing the amount of polymer waste in the environment is the introduction to the market of polymers susceptible to degradation under the influence of environmental factors. This paper presents the results of testing the susceptibility to degradation in soil of branched polyesterurethane (PUR) based on poly([R,S]-3-hydroxybutyrate) (R,S-PHB), modified with poly([D,L]-lactide) (PLA) and starch (St). Weight...
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Influence of Selected Warm Mix Asphalt Additives on Cracking Susceptibility of Asphalt Mixtures
PublicationWarm mix asphalt (WMA) has been widely accepted as a future asphalt paving technology. Besides clear advantages, there are still some concerns regarding durability and long-term performance of pavements made with this type of asphalt mixtures. One of the most important issues is low temperature behaviour of WMA because certain additives used for temperature reduction can aect bitumen properties. This paper presents the evaluation...
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The influence of robotization on the reliability of the production process in the bakery industry
PublicationThis article presents a new concept of technological system reliability based on the analysis of the relationship of associations of elements of energy streams, matter, information, time and finance. The method of stream specification and the method of determining the reliability values of significant and supporting relationships are given. Relevant relationships between elements of system streams were defined as having one-time...
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The concept of stream and system reliability on the example of the bakery industry
PublicationThis article presents a new concept of technological system reliability based on the analysis of the relationship of associations of elements of energy streams, matter, information, time and finance. The method of stream specification and the method of determining the reliability values of significant and supporting relationships are given. Relevant relationships between elements of system streams were defined as having one-time...
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Traffic Remapping Attacks in Ad Hoc Networks
PublicationAd hoc networks rely on the mutual cooperation of stations. As such, they are susceptible to selfish attacks that abuse network mechanisms. Class-based QoS provisioning mechanisms, such as the EDCA function of IEEE 802.11, are particularly prone to traffic remapping attacks, which may bring an attacker better QoS without exposing it to easy detection. Such attacks have been studied in wireless LANs, whereas their impact in multihop...
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Challenges associated with the design of a small unmanned autonomous maritime vehicle
PublicationThe paper contains the preliminary results of the research connected with development of a small unmanned autonomous maritime vehicle. First of all a general description of research is introduced. Next, a concept of a vehicle is presented. Then, a brief description of a research method is given. Next, the current research problems under way are introduced. They concern the ballasting, motion and precise position stabilization system...
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A model for performance assessment of damaged ships when using the risk-based method
PublicationW pracy omówiono metody oceny bezpieczeństwa statków w stanie uszkodzonym w warunkach operacyjnych. Przedstawiono metodę oceny bezpieczeństwa statków w stanie uszkodzonym opartą na analizie ryzyka. Przedstawiono model oceny zachowania się statku w stanie uszkodzonym, który jest oparty na tak zwanym quasi-dynamicznym modelu zatapiania statku. Omówiono elementy związane z analizą ryzyka i ocena bezpieczenstwa statków.
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A model for performance assessment of damaged ships when usig the risk-based method
PublicationArtykuł prezentuje elementy badań związanych z rozwojem metody i modelu do oceny bezpieczeństwa statków i obiektów oceanotechnicznych w stanie uszkodzonym. Przedsawiono podejście do oceny bezpieczeństwa statków i obiektów oceanotechnicznych,składające się z dwóch części: oceny zachowania się obiektów oraz oceny ryzyka. Głównym problemem zaprezentowanym w arytkule jest ocena ocena zachowania się statków i obiektów oceanotechnicznych...
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Modeling of Electrified Transportation Systems Featuring Multiple Vehicles and Complex Power Supply Layout
PublicationThe paper proposes a novel approach to modeling electrified transportation systems. The proposed solution reflects the mechanical dynamics of vehicles as well as the distribution and losses of electric supply. Moreover, energy conversion losses between the mechanical and electrical subsystems and their bilateral influences are included. Such a complete model makes it possible to replicate, e.g., the impact of voltage drops on vehicle...