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Wyniki wyszukiwania dla: MHEALTH
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Evaluation of fire hazard in electrical installations due to unfavorable ambient thermal conditions
PublikacjaEvaluation of fire hazard caused by electrical installations is a difficult and important topic, and it limits the possibility of loss of life or health of people, as well as the occurrence of significant property damage. In particular, this hazard was caused by power cables and especially photovoltaic (PV) installations. The authors proved that power cables directly exposed to strong solar radiation are likely to exceed maximum...
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Efficiency comparison of selected endoscopic video analysis algorithms
PublikacjaIn the paper, selected image analysis algorithms were examined and compared in the task of identifying informative frames, blurry frames, colorectal cancer and healthy tissue on endoscopic videos. In order to standardize the tests, the algorithms were modified by removing from them parts responsible for the classification, and replacing them with Support Vector Machines and Artificial Neural Networks. The tests were performed in...
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A measurement system for children endurance tests
PublikacjaThere are a lot of ethical problems concerning the use of invasive methods for the measurement of a child's body response to physical exercise and physical training. The alternative is are non-invasive methods like ergospirometry or NIRS. The article presents a measurement system dedicated for children endurance tests, composed of a few non-invasive measurement modules, including a temperature measurement module. Temperature is...
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T1 RELAXATION TIME CALLIBRATION IN MAGNETIC RESONANCE IMAGING USING NANODIAMOND PHANTOMS
PublikacjaMRI is increasingly used in radiation treatment planning because of the excellent soft tissue contrast in the obtained images. It allows more precise definition of the boundaries between healthy tissues and those affected by cancerous lesions. To obtain good image quality, the difference in signal between two types of tissue must be significant despite the noise so it must be properly calibrated. This calibration includes...
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Implementation of DEIS for reliable fault monitoring and detection in PEMFC single cells and stacks
PublikacjaDynamic Electrochemical Impedance Spectroscopy (DEIS) was presented as novel method for diagnostic and monitoring of PEMFC stack and single cells operation. Impedance characteristics were obtained simultaneously with current - voltage characteristics for stack and each individual cell. Impedance measurements were performed in galvanodynamic mode. It allowed to compare performance of each cell and identification of faulty cell operation...
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Numerical modeling of GPR field in damage detection of a reinforced concrete footbridge
PublikacjaThe paper presents a study on the use of the ground penetrating radar (GPR) method in diagnostics of a footbridge. It contains experimental investigations and numerical analyses of the electromagnetic field propagation using the finite difference time domain method (FDTD). The object of research was a reinforced concrete footbridge over a railway line. The calculations of the GPR field propagation were performed on a selected cross-section...
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DETECTION OF DEBONDING IN STEEL BARS EMBEDDED IN CONCRETE USING GUIDED WAVE PROPAGATION
PublikacjaThe paper presents a non-destructive diagnostic technique based on guided wave propagation phenomenon used to assess the adhesive bonding between a steel bar and a concrete cover. Double-layered cylindrical specimens with different levels of debonding and its location were investigated. The influence of bonding length on the excitation of multiple modes of longitudinal guided waves was analysed. Numerical simulations of guided...
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In vitro antioxidant and enzyme inhibitory properties of Rubus caesius L
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Effect of grip width on exercise volume in bench press with a controlled movement tempo in women
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Does blood flow restriction influence the maximal number of repetitions performed during the bench press? A pilot study
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Influence of dissolved organic matter in natural and simulated water on the photochemical decomposition of butylparaben
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Extended range of motion does not induce greater muscle damage than conventional range of motion in the bench press exercise
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Attitudes of Lazarski University Medical Students towards Disaster Medicine; Questionnaire Survey
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Impressions about people with intellectual disability of Polish high school students who participated in a workshop led by self-advocates
PublikacjaThe research question is whether participation in a two-session workshop led by self-advocates with mild intellectual disability, supported by professional staff, affects high school students’ impression of people with intellectual disability, measured by a self-report questionnaire based on a semantic differential. The study was paper-pencil questionnaire-based and anonymous, conducted in Warsaw, Poland. Three measurements...
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Abductor and adductor strength relation to sprint performance in soccer players
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Differences of Legal Regulations Concerning Involuntary Psychiatric Hospitalization in Twelve European Countries: Implications for Clinical Practice
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Comparison of sono-direct and sono-alternate current electro-coagulation processes for removal of color and turbidity from domestic wastewater
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An integrated approach to optimization of fermentation conditions for bioethanol production from local leftover Injera waste using central composite design
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Optimization and evaluation of the process variable’s effect on color and turbidity removal from coffee processing wastewater: Using a photoelectrochemical oxidation process
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Evaluation of occupational exposure in a slide bearings factory on the basis of urine and blood sample analyses
PublikacjaZbadano wpływ pracy w zakładach łożysk ślizgowych na zdrowie pracowników. Przeprowadzono analizę próbek moczu i krwi pobranych od 42 pracowników i 6 osób zatrudnionych w administracji przedsiębiorstwa, stanowiących grupę kontrolną. Oznaczono zawartość Al, Cu, Pb i Zn we krwi i moczu pracowników dwukrotnie, przed i po terapii za pomocą chelatowania, stosując ICP-MS oraz metodę dodatku wzorca. Istotność różnic w zawartości pierwiastków...
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TNFA expression level changes observed in response to the Wingate Anaerobic Test in non-trained and trained individuals
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Studies of kicking of three targets – does sex differentiate the velocity of the taekwondo front kick?
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Verbal Exhibitionism: A Brief Synopsis of Telephone Scatologia
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Microplastics in atmospheric dust samples of Sistan: sources and distribution
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Tourism in Apuseni Mountains (Romania) – A technical proposal
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Occurrence of antibiotic resistance among Enterobacterales isolated from raw and ready-to-eat food – phenotypic and genotypic characteristics
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Changes in air tourism to Tunisia in 2009–2018
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A sense of social affiliation of homeless people participating in a soccer tournament
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Anaerobic bacteria in wastewater treatment plant
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Orchiepididymitis in a 14-year-old boy with concurrent SARS-CoV-2 infection
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System supporting behavioral therapy for children with autism
PublikacjaIn this paper, a system supporting behavioral therapy for autistic children is presented. The system consists of sensors network, base station and a brooch indicating person's emotional states. The system can be used to measure values of physiological parameters that are associated with changes in the emotional state. In the future, it can be useful to inform the autistic child and the therapist about the emotional state of the...
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The unrecognized and untapped potential of workers aged >=50 years: myth or fact, a study of the situation of the elderly workers in Poland
PublikacjaThe authors carried out a comparative analysis and quantitative synthesis of the results of primary research from Polish research centers on Polish employers' assessment of workers aged 50 years old and more and the possibilities and conditionsof using the potential of this group in enterprises.
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Multi-layered tissue head phantoms for noninvasive optical diagnostics
PublikacjaExtensive research in the area of optical sensing for medical diagnostics requires development of tissue phantoms with optical properties similar to those of living human tissues. Development and improvement of in vivo optical measurement systems requires the use of stable tissue phantoms with known characteristics, which are mainly used for calibration of such systems and testing their performance over time. Optical and mechanical...
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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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Production of fuel briquette from solid waste biomass using natural resin as a binder
PublikacjaAbstract Background: This research aimed to evaluate the use of natural resin as a binder for the production of fuel briquette from solid waste biomass. Methods: Proximate analyses were made for fuel briquette prepared from solid waste biomass using natural resin as a binder in comparison with using starch as a binder. Results: The results for density, percent content of moisture, percent content of volatile matter, percent content...
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Carbon dioxide ocean and ground storage as a method of climate change mitigation
PublikacjaW pracy dokonano krytycznego przeglądu negatywnego wpływu globalnego ocieplenia na środowisko i przedstawiono dwie nowatorskie metody zmniejszenia stężenia atmosferycznego ditlenku węgla. Obie metody: magazynowanie antropogenicznego ditlenku węgla, pochodzącego z dużych źródeł emisji, w oceanach i w glebie są technologicznie możliwe do przeprowadzenia, co potwierdzają przykłady z różnych regionów świata. W pracy przedyskutowano...
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A Special Issue on Ubiquitous Computing in Healthcare
PublikacjaPrzetwarzanie bez granic w opiece zdrowotnej jest szczególnie istotne w konteście starzejącego się społeczeństwa. W pracy przedstawiono omówienie roli przetwarzania bez granic oraz opisano powiązane dziedziny tematyczne i prezentowane w numerze specjalnym zagadnienia.
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Multimodal Platform for Continuous Monitoring of the Elderly and Disabled
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Monitoring of a bathing person
PublikacjaW pracy przedstawiono koncepcję i wstępne wyniki układu pozwalającego na monitorowanie stanu i aktywności osoby kąpiącej się. Zaprezentowany system pozwala na wykrycie osoby kąpiącej się w wannie, analizę jej aktywności oraz detekcję stanów potencjalnie niebezpiecznych. W artykule pokazano metodę pomiaru, dokonano analizy czułości, zaprezentowano prototyp układu pomiarowego i wyniki wstępnych pomiarów.
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Synthesis, characteristics, and photocatalytic activity of zinc oxide nanoparticles stabilized on the stone surface for degradation of metronidazole from aqueous solution
PublikacjaAbstract Background: The presence of antibiotics such as metronidazole in wastewater even at low concentrations requires searching for a suitable process such as advanced oxidation process (AOP) to reduce the level of pollutants to a standard level in water. Methods: In this study, zinc oxide (ZnO) nanoparticles were synthesized by thermal method using zinc sulfate (ZnSO4) as a precursor, then, stabilized on stone and was used...
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Feasibility Study for Food Intake Tasks Recognition Based on Smart Glasses
PublikacjaIn this exploratory study 13 adult test subjects have performed different food intake tasks while wearing a three axis accelerometer mounted at a temple of glasses. Two different algorithms for task recognition have been applied and compared. The retrospective data processing leads to better task recognition results when the frequency range of 50 Hz to 100 Hz is analysed within accelerometer signal recordings. A straightforward...
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Blood equivalent phantom vs whole human blood, a comparative study
PublikacjaPreclinical research of biomedical optoelectronic devices is often performed with the use of blood phantoms — a simpli¯ed physical model of blood. The aim of this study is the comparison and distinction between blood phantoms as well as whole human blood measurements. We show how the use of such phantoms may in°uence the incorrect interpretation of measured signal. On the other hand, we highlight how the use of blood phantoms enables...
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MECONIUM SAMPLES USED TO ASSESS INFANT EXPOSURE TO THE COMPONENTS OF ETS DURING PREGNANCY
PublikacjaThe aim of the study was to use meconium samples to assess fetal exposure to compounds present in environmental tobacco smoke (ETS). Material and Methods: In order to assess fetal exposure to toxic tobacco smoke compounds, samples of meconium from the offspring of women with different levels of tobacco smoke exposure, and the samples of saliva from the mothers were analyzed. Thiocyanate ion as a biomarker of tobacco smoke exposure,...
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Visual Attention Distribution Based Assessment of User's Skill in Electronic Medical Record Navigation
PublikacjaCurrently, the most precise way of reflecting the skills level is an expert’s subjective assessment. In this paper we investigate the possibility of the use of eye tracking data for scalar quantitative and objective assessment of medical staff competency in EMR system navigation. According to the experiment conducted by Yarbus the observation process of particular features is associated with thinking. Moreover, eye tracking is...
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Active and Dynamic Graphical Code for Object Identification in Healthcare
PublikacjaA new approach for item marking using two dimensional discrete graphics markers. Proposed solution allow o change the code rapidly, upon request and in the case of thermal markers make the code invisible for unauthorized observers. Connecting the proposed codes with wearable multmedial platform such as eGlasses can create new possibilities in human-environment interaction.
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A Special Section on Intelligent User Interfaces in Healthcare (IUIH)
PublikacjaA concept of interface has evolved from the first appearance in the form of a command line interface to the established use of direct manipulation or WIMP (windows, icons, menus and pointing) interfaces in nearly all applications. Intelligent user interfaces (IUI) form a subfield of Human-Computer Interaction research. Optimal human-computer interactions are defined as ones where users are able to perform complex tasks more quickly...
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Color Processing for Color-Blind Individuals Using Smart Glasses
PublikacjaIn this paper we investigated image processing methods for color-blind individuals. In particular we experimentally verified color naming procedure, generation of maps with color perception differences for average observers and for dichromats, and two color transformation methods. In experiments 7 mobile devices were used: 3 smart glasses and 4 smartphones. User studies were performed with 38 average observers and 9 dichromats....
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The entrepreneurship of host cities of the Olympic Games – Between success and social destruction
PublikacjaMany publications focus on the deficit nature of the Olympic Games organisation, when considered from the point of view of host cities – organisers of such events. However, does such an event actually affect the region and the host country in a positive way? The presented article aims at the assessment of the organisation of mass sports events, such as the Olympic Games, taking into consideration entrepreneurial activities which...
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Real-Time Facial Features Detection from Low Resolution Thermal Images with Deep Classification Models
PublikacjaDeep networks have already shown a spectacular success for object classification and detection for various applications from everyday use cases to advanced medical problems. The main advantage of the classification models over the detection models is less time and effort needed for dataset preparation, because classification networks do not require bounding box annotations, but labels at the image level only. Yet, after passing...
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The Evaluation of Use of Colors in Graphical User-Interfaces in Healthcare
PublikacjaIn this paper, color difference/contrast measures are investigated in reference to results of experiments with the participation of average, color-normal observers and with individuals with deuteranopia. Additionally, a new method for the automatic analysis of color contrast is proposed, which supports designers of graphical user- interfaces in healthcare. The method was verified using the GUI phantom of a vital signs monitor (the...