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- Publikacje 130 wyników po odfiltrowaniu
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Wyniki wyszukiwania dla: EEQ
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Unsupervised machine-learning classification of electrophysiologically active electrodes during human cognitive task performance
PublikacjaIdentification of active electrodes that record task-relevant neurophysiological activity is needed for clinical and industrial applications as well as for investigating brain functions. We developed an unsupervised, fully automated approach to classify active electrodes showing event-related intracranial EEG (iEEG) responses from 115 patients performing a free recall verbal memory task. Our approach employed new interpretable...
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Missing Puzzle Pieces in Dementia Research: HCN Channels and Theta Oscillations
PublikacjaIncreasing evidence indicates a role of hyperpolarization activated cation (HCN) channels in controlling the resting membrane potential, pacemaker activity, memory formation, sleep, and arousal. Their disfunction may be associated with the development of epilepsy and age-related memory decline. Neuronal hyperexcitability involved in epileptogenesis and EEG desynchronization occur in the course of dementia in human Alzheimer’s Disease...
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Supramolecular structures formed by 2-aminopyridine derivatives. Part I. Hydrogenbonding networks via N-H...N interactions and the conformational polymorphism of N,N´-bis(2-piridyl)aryldiamines
PublikacjaOtrzymano serię N,N´-bis(2-pirydylo)arylodiamin w postaci monokryształów. Zgodnie z oczekiwaniami, powstawały dwie odmiany polimorficzne. Forma EE z układem wiązań R22(8) figuruje jako jednowymiarowe taśmy. Stwierdzono, że ugrupowanie 2-aminopirydylowe stanowi synton supramolekularny za pomocą którego można projektować struktury w ciele stałym. Właściwości tego syntonu były badane z wykorzystaniem metod dyfrakcyjnych oraz spektroskopii...
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Design aspects of a low-cost prosthetic arm for people with severe movement disabilities
PublikacjaIn this paper the main aspects of mechanical design behind the low-cost prosthetic arm are presented. The fundamentals of a proper design has been defined to obtain functional 3D printed 5 degree of freedom (DOF) prosthesis. The designed prosthetic arm is a part of the hybrid interface with eye tracking movement control. The main focus was to create affordable but usable prosthesis which corresponds in size and weights to the human...
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Dew chemistry near a motorway in SW Poland
PublikacjaW artykule wykazano wpływ bliskości autostrady na wydajność tworzenia się rosy i jej skład chemiczny. Badania przeprowadzono w pobliżu autostrady A4 w Polsce SW. Obszar badań miał charakter lekko pofalowanej równiny intensywnie użytkowanej rolniczo. Do kolekcji osadów wykorzystano płaskie, pasywne kolektory radiacyjne. Dwa z nich (AN i AS) zlokalizowane były w bezpośrednim sąsiedztwie drogi (30 m) po obu jej stronach, natomiast...
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Technologia CyberOko do diagnozy, rehabilitacji i komunikowania się z pacjentami niewykazującymi oznak przytomności
PublikacjaCyberOko jest rozwiązaniem opracowanym w Politechnice Gdańskiej, które umożliwia nawiązanie kontaktu i pracę z osobami głęboko upośledzonymi komunikacyjnie. W sposób inteligentny śledzi ruch gałek ocznych, dzięki czemu umożliwia rehabilitację i ocenę stanu świadomości pacjenta nawet w stanie całkowitego porażenia. Rozwiązanie obejmuje także analizę fal EEG, obiektywne badanie słuchu i badanie sygnałów z macierzy elektrod wszczepianych...
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Problems in estimation of hand grip force based on EMG signal
PublikacjaThere has recently been a significant increase in the number of publications on and applications of bioelectric signals for diagnostic purposes. While the use of ECG (electrocardiography) is not surprising, the use of signals from registration of brain activity (EEG) and muscles activity (EMG) still finds new applications in various fields. The authors focus on the use of EMG signals for estimating hand grip force. Currently,...
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An Automated Method for Biometric Handwritten Signature Authentication Employing Neural Networks
PublikacjaHandwriting biometrics applications in e-Security and e-Health are addressed in the course of the conducted research. An automated graphomotor analysis method for the dynamic electronic representation of the handwritten signature authentication was researched. The developed algorithms are based on dynamic analysis of electronically handwritten signatures employing neural networks. The signatures were acquired with the use of the...
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Enabling simultaneous redox transformation of toxic chromium(VI) and arsenic(III) in aqueous media—A review
PublikacjaSimultaneous conversion of most harmful As(III) and Cr(VI) to their less toxic counterparts is environmentally desirable and cost-effective. It has been confirmed that simultaneous oxidation of As(III) to As(V) and reduction of Cr(VI) to Cr(III) can occur via free radical or mediated electron transfer processes. While Cr(VI) is reduced by reacting with H•, eaq−, photoelectron directly or undergoing ligand exchange with H2O2 and...
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Chemistry of non-precipitation components of wet deposition with Poland as an example
PublikacjaW pracy przedstawiono badania dotyczące chemizmu osadów atmosferycznych pobieranych na terenie Polski w okresie od 2004 do 2007 roku. Średni skład jonowy (TIC) dla rosy, szronu i mgły (w stanie ciekłym i stałym) wynosił odpowiednio 2147, 1929 i 1014 µeq/l, gdzie typowy skład jonowy TIC dla opadów atmosferycznych wynosi 318 µeq/l. Dla wszystkich typów osadów atmosferycznych różne jony pełnią ważną rolę: Ca2+ i SO42-...
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Assessment of hearing in coma patients employing auditory brainstem response, electroencephalography, and eye-gaze-tracking
PublikacjaThe results of the study conducted by Tagliaferri et al. in 12 European countries indicate that the ratio of registered brain injury cases in Europe amounts to 150-300 per 100 000 people, with the European mean value of 235 cases per 100 000 people. The project presented in the paper assumes development of a combined metric of patients’ state remaining in coma by intelligent fusion of GCS (subjective Glasgow Coma Scale or its derivatives)...
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How Can We Identify Electrophysiological iEEG Activities Associated with Cognitive Functions?
PublikacjaElectrophysiological activities of the brain are engaged in its various functions and give rise to a wide spectrum of low and high frequency oscillations in the intracranial EEG (iEEG) signals, commonly known as the brain waves. The iEEG spectral activities are distributed across networks of cortical and subcortical areas arranged into hierarchical processing streams. It remains a major challenge to identify these activities in...
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Light pollution from illuminated bridges as a potential barrier for migrating fish–Linking measurements with a proposal for a conceptual model
PublikacjaIlluminated bridges have become important assets to navigable aquatic systems. However, if artificial light at night (ALAN) from illuminated bridges reaches aquatic habitats, such as rivers, it can threaten the river's natural heterogeneity and alter the behavioural responses of migratory fish. Here, via a pilot study, we quantified levels of ALAN at illuminated bridges that cross a river and, propose a conceptual model to estimate...
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Restrained differential of a graph
PublikacjaGiven a graph $G=(V(G), E(G))$ and a vertex $v\in V(G)$, the {open neighbourhood} of $v$ is defined to be $N(v)=\{u\in V(G) :\, uv\in E(G)\}$. The {external neighbourhood} of a set $S\subseteq V(G)$ is defined as $S_e=\left(\cup_{v\in S}N(v)\right)\setminus S$, while the \emph{restrained external neighbourhood} of $S$ is defined as $S_r=\{v\in S_e : N(v)\cap S_e\neq \varnothing\}$. The restrained differential of a graph $G$ is...
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Neural Oscillation During Mental Imagery in Sport: An Olympic Sailor Case Study
PublikacjaThe purpose of the current study was to examine the cortical correlates of imagery depending on instructional modality (guided vs. self-produced) using various sports-related scripts. According to the expert-performance approach, we took an idiosyncratic perspective analyzing the mental imagery of an experienced two-time Olympic athlete to verify whether different instructional modalities of imagery (i.e., guided vs. self-produced)...
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Budynek inteligentny [EE][2021/22]
Kursy OnlineStudia stacjonarne, kierunek Energetyka, stopień I, semestr 6
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Metody optymalizacji [EE][2022/23]
Kursy Online -
Budynek inteligentny [EE][2022/23]
Kursy OnlineStudia stacjonarne, kierunek Energetyka, stopień I, semestr 6
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Systemy elektroenergetyczne [EE][2022/23]
Kursy Online -
Metody optymalizacji [EE][2020/21]
Kursy Online -
NAPĘD ELEKTRYCZNY [EE][2022/23]
Kursy Online -
Metody optymalizacji [EE][2021/22]
Kursy Online -
Statistics (EE, MSc, sem. I)
Kursy OnlineStatistics course. Kurs statystyki w inżynierii środowiska realizowany w języku angielskim.
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Sterowniki programowalne [EE][2022/23]
Kursy Online -
Sterowniki programowalne [EE][2023/24]
Kursy Online -
Budynek Inteligentny [EE][2023/24]
Kursy Online -
NAPĘD ELEKTRYCZNY [EE][2023/24]
Kursy Online -
Electrical Stimulation Modulates High Gamma Activity and Human Memory Performance
PublikacjaDirect electrical stimulation of the brain has emerged as a powerful treatment for multiple neurological diseases, and as a potential technique to enhance human cognition. Despite its application in a range of brain disorders, it remains unclear how stimulation of discrete brain areas affects memory performance and the underlying electrophysiological activities. Here, we investigated the effect of direct electrical stimulation...
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Antifungal Activity and Synergism with Azoles of Polish Propolis
PublikacjaThe aim of our work was to check if one of the products of natural origin, namely honey 19 bee propolis may be an alternative or supplement to currently used antifungal agents. The activity 20 of 50 ethanolic extracts of propolis (EEPs), harvested in Polish apiaries, was tested on a group of 69 21 clinical isolates of C. albicans. Most of the EEPs showed satisfactory activity, with minimum 22 fungicidal concentrations (MFC) mainly...
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Automotive fleet repair facility wastewater treatment using air/ZVI and air/ZVI/H2 O2 processes
PublikacjaAdvanced automotive fl eet repair facility wastewater treatment was investigated with Zero-Valent Iron/Hydrogen Peroxide (Air/ZVI/H2 O2 ) process for different process parameters: ZVI and H2 O2 doses, time, pH. The highest Chemical Oxygen Demand (COD) removal effi ciency, 76%, was achieved for ZVI/H2 O2 doses 4000/1900 mg/L, 120 min process time, pH 3.0. COD decreased from 933 to 227 mg/L. In optimal process conditions odor and...
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Functioning and legal regulations of perpetual usufruct right in Poland in relation to similar rights in other countries of the European Union
Publikacja1 May 2004, Poland became part of the European Union, which main aim is the political, economic and social integration of democratic European countries as well as the construction of a common market ensuring of persons, goods, services and capital move freely. The Accession Treaty provides some transitional periods for the adjustment of the right of Member States to the EU regulations. Next year, 12 years after joining the EU,...
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Direct electrical stimulation of the human brain has inverse effects on the theta and gamma neural activities
PublikacjaObjective: Our goal was to analyze the electrophysiological response to direct electrical stimulation (DES) systematically applied at a wide range of parameters and anatomical sites, with particular focus on neural activities associated with memory and cognition. Methods: We used a large set of intracranial EEG (iEEG) recordings with DES from 45 subjects with electrodes...
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On the convergence of a nonlinear finite-difference discretization of the generalized Burgers–Fisher equation
PublikacjaIn this note, we establish analytically the convergence of a nonlinear finite-difference discretization of the generalized Burgers-Fisher equation. The existence and uniqueness of positive, bounded and monotone solutions for this scheme was recently established in [J. Diff. Eq. Appl. 19, 1907{1920 (2014)]. In the present work, we prove additionally that the method is convergent of order one in time, and of order two in space. Some...
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System budżetowania parametrów jakościowych dla połączeń wielodomenowych
PublikacjaRozwiązanie problemu gwarancji jakości usług dla wielodomenowych sieci NGN przy jednoczesnej optymalizacji wykorzystania zasobów jest nadal otwarte. Zaproponowano modyfikację dotychczasowego podejścia, które sprowadza się do budżetowania bilansowania) dwóch, a nie trzech parametrów jakościowych (średniego opóźnienia i prawdopodobieństwa straty) przy jednoczesnej kontroli parametru zmienności opóźnienia w powiązaniu z prawdopodobieństwem...
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TECHNIKA WYSOKICH NAPIĘĆ [EE][2022/23]
Kursy Online -
Rynek energii elektrycznej [EE][2021/22]
Kursy Online -
RYNEK ENERGII ELEKTRYCZNEJ [EE][2022/23]
Kursy Online -
Programmable Controllers [EE][I][2023/24]
Kursy Online -
Gospodarka elektroenergetyczna [EE][II][2023/24]
Kursy OnlineKierunek: Energetyka, II stopień, studia stacjonarne, sem. 1
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Groundwater and Soil Protection EE 22/23
Kursy Online -
Groundwater and soil protection EE 23/24
Kursy Online -
Analiza egzergetyczna bloku gazowo parowego współpracującego z obiegiem ORC
PublikacjaW pracy przedstawiono sposób przeprowadzania bilansu egzergetycznego dla obiegu Clausiusa – Rankina. Następnie przy pomocy programu EES współpracującego z bazą REFPROP 9.0 (Reference Fluid Thermodynamic and Transport Properties Database) [6] wykonany został bilans egzergetyczny dla układu kaskadowego siłowni CCGT – ORC, w którym blok gazowo – parowy współpracuje z obiegiem ORC. Obliczenia wykonano w oparciu o rzeczywiste parametry...
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2022/2023 - Narzędzia i Aplikacje Java EE
Kursy Onlinestudia inżynierskie, kierunek Informatyka, sem. 7
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2023/2024 - Narzędzia i Aplikacje Java EE
Kursy Onlinestudia inżynierskie, kierunek Informatyka, sem. 7
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Diagnostyka i monitoring [EE][Niestacjonarne][2023/24]
Kursy Online -
Energy Systems Stations (WOiO), EE-60/1
Kursy OnlineSpecjalność: Energy Technologies (WOiO), I stopnia - inżynierskie, stacjonarne, 2017/2018 - zimowy (obecnie sem. 6)
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Groundwater and Soil Protection EE 21/22 summer
Kursy Online -
Behavioral state classification in epileptic brain using intracranial electrophysiology
PublikacjaOBJECTIVE: Automated behavioral state classification can benefit next generation implantable epilepsy devices. In this study we explored the feasibility of automated awake (AW) and slow wave sleep (SWS) classification using wide bandwidth intracranial EEG (iEEG) in patients undergoing evaluation for epilepsy surgery. APPROACH: Data from seven patients (age [Formula: see text], 4 women) who underwent intracranial depth electrode...
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Gamma oscillations precede interictal epileptiform spikes in the seizure onset zone
PublikacjaOBJECTIVE: To investigate the generation, spectral characteristics, and potential clinical significance of brain activity preceding interictal epileptiform spike discharges (IEDs) recorded with intracranial EEG. METHODS: Seventeen adult patients with drug-resistant temporal lobe epilepsy were implanted with intracranial electrodes as part of their evaluation for epilepsy surgery. IEDs detected on clinical macro- and research microelectrodes...
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LC–MS/MS analysis, antioxidant and anticholinergic properties of galanga (Alpinia officinarum Hance) rhizomes
PublikacjaGalanga (Alpinia officinarum Hance) is a pungent and aromatic rhizome, which is a member of the ginger family (Zingiberaceae). The rhizomes of this plant have been used as a traditional medicine in far east countries for relieving stomach ache, invigorating the circulatory system, treating colds, and reducing swelling. The aim of this study was to investigate antioxidant and anticholinergic properties of galanga. For this purpose,...