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  1. Book ; Online ; E-Book: Non-invasive monitoring of elderly persons

    Wagner, Jakub / Mazurek, Pawel / Morawski, Roman Z.

    systems based on impulse-radar sensors and depth sensors

    (Health Information Science)

    2022  

    Author's details Jakub Wagner, Paweł Mazurek and Roman Z. Morawski
    Series title Health Information Science
    Keywords Older people/Medical care ; Patient monitoring
    Subject code 362.19897
    Language English
    Size 1 online resource (312 pages)
    Publisher Springer International Publishing
    Publishing place Cham, Switzerland
    Document type Book ; Online ; E-Book
    Remark Zugriff für angemeldete ZB MED-Nutzerinnen und -Nutzer
    ISBN 3-030-96009-9 ; 9783030960087 ; 978-3-030-96009-4 ; 3030960080
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  2. Book: Non-invasive Monitoring of Elderly Persons

    Wagner, Jakub / Morawski, Roman Z. / Mazurek, Pawe¿

    Systems Based on Impulse-Radar Sensors and Depth Sensors

    (Health Information Science)

    2022  

    Author's details ¿Jakub Wagner, born in 1988 (Poland), received the M.Sc. degree in biomedical engineering in 2013, and the Ph.D. degree in electronics in 2020, both from Warsaw University of Technology (Poland) where he is currently employed as Assistant Professor. His scientific activities are focused on biomedical and healthcare applications of mathematical tools for analysis of measurement data. He has participated in a series of research projects devoted to healthcare-oriented monitoring of independently-living elderly persons. § Pawe¿ Mazurek, born in 1989 (Poland), received the M.Sc. degree in telecommunications, in 2014, and Ph.D. degree in electronics in 2019, from Warsaw University of Technology (Poland) where he is currently employed as Assistant Professor. His research interests include the preprocessing and integration of measurement data acquired by means of impulse-radar sensors and infrared depth sensors when applied for unobtrusive monitoring of elderly persons. § Roman Z. Morawski,
    Series title Health Information Science
    Keywords impulse-radar sensor ; depth sensor ; measurement data processing ; Data Fusion ; numerical differentiation ; regularisation ; measurement uncertainty ; eldercare ; Healthcare ; biomedical engineering ; Functional assessment ; Gait analysis ; walking speed ; Fall prevention ; fall detection ; healthcare ; monitoring ; functional assessment ; gait analysis ; fall prevention ; data fusion
    Language English
    Size 320 p.
    Edition 1
    Publisher Springer International Publishing
    Document type Book
    Note PDA Manuell_14
    Format 160 x 241 x 23
    ISBN 9783030960087 ; 3030960080
    Database PDA

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  3. Article ; Online: Methods for Spatiotemporal Analysis of Human Gait Based on Data from Depth Sensors.

    Wagner, Jakub / Szymański, Marcin / Błażkiewicz, Michalina / Kaczmarczyk, Katarzyna

    Sensors (Basel, Switzerland)

    2023  Volume 23, Issue 3

    Abstract: Gait analysis may serve various purposes related to health care, such as the estimation of elderly people's risk of falling. This paper is devoted to gait analysis based on data from depth sensors which are suitable for use both at healthcare facilities ... ...

    Abstract Gait analysis may serve various purposes related to health care, such as the estimation of elderly people's risk of falling. This paper is devoted to gait analysis based on data from depth sensors which are suitable for use both at healthcare facilities and in monitoring systems dedicated to household environments. This paper is focused on the comparison of three methods for spatiotemporal gait analysis based on data from depth sensors, involving the analysis of the movement trajectories of the knees, feet, and centre of mass. The accuracy of the results obtained using those methods was assessed for different depth sensors' viewing angles and different types of subject clothing. Data were collected using a Kinect v2 device. Five people took part in the experiments. Data from a Zebris FDM platform were used as a reference. The obtained results indicate that the viewing angle and the subject's clothing affect the uncertainty of the estimates of spatiotemporal gait parameters, and that the method based on the trajectories of the feet yields the most information, while the method based on the trajectory of the centre of mass is the most robust.
    MeSH term(s) Humans ; Aged ; Gait ; Foot ; Movement ; Monitoring, Physiologic ; Spatio-Temporal Analysis ; Biomechanical Phenomena
    Language English
    Publishing date 2023-01-20
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2052857-7
    ISSN 1424-8220 ; 1424-8220
    ISSN (online) 1424-8220
    ISSN 1424-8220
    DOI 10.3390/s23031218
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Modular Nitrogen-Doped Concave Polycyclic Aromatic Hydrocarbons for High-Performance Organic Light-Emitting Diodes with Tunable Emission Mechanisms.

    Wagner, Jakub / Zimmermann Crocomo, Paola / Kochman, Michał Andrzej / Kubas, Adam / Data, Przemysław / Lindner, Marcin

    Angewandte Chemie (International ed. in English)

    2022  Volume 61, Issue 27, Page(s) e202202232

    Abstract: Although bowl-shaped N-pyrrolic polycyclic aromatic hydrocarbons (PAHs) can achieve excellent electron-donating ability, their application for optoelectronics is hampered by typically low photoluminescence quantum yields (PLQYs). To address this issue, ... ...

    Abstract Although bowl-shaped N-pyrrolic polycyclic aromatic hydrocarbons (PAHs) can achieve excellent electron-donating ability, their application for optoelectronics is hampered by typically low photoluminescence quantum yields (PLQYs). To address this issue, we report the synthesis and characterization of a series of curved and fully conjugated nitrogen-doped PAHs. Through structural modifications to the electron-accepting moiety, we are able to switch the mechanism of luminescence between thermally activated delayed fluorescence (TADF) and room-temperature phosphorescence (RTP), and to tune the overall PLQY in the range from 9 % to 86 %. As a proof of concept, we constructed solid-state organic light-emitting diode (OLED) devices, which has not been explored to date in the context of concave N-doped systems being TADF/RTP emitters. The best-performing dye, possessing a peripheral trifluoromethyl group adjacent to the phenazine acceptor, exhibits yellow to orange emission with a maximum external quantum efficiency (EQE) of 12 %, which is the highest EQE in a curved D-A embedded N-PAH to date.
    Language English
    Publishing date 2022-05-05
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2011836-3
    ISSN 1521-3773 ; 1433-7851
    ISSN (online) 1521-3773
    ISSN 1433-7851
    DOI 10.1002/anie.202202232
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: V-shaped donor-acceptor organic emitters. A new approach towards efficient TADF OLED devices.

    Derkowski, Wojciech / Kumar, Dharmandra / Gryber, Tomasz / Wagner, Jakub / Morawiak, Maja / Kochman, Michał Andrzej / Kubas, Adam / Data, Przemysław / Lindner, Marcin

    Chemical communications (Cambridge, England)

    2023  Volume 59, Issue 19, Page(s) 2815–2818

    Abstract: We report the synthesis and characterization of a series of donor-acceptor TADF emitters with a new architecture, where the donor moiety and the dibenzazepine-based acceptor moiety are separated by a phenylene linker in a V-shaped spatial arrangement. ... ...

    Abstract We report the synthesis and characterization of a series of donor-acceptor TADF emitters with a new architecture, where the donor moiety and the dibenzazepine-based acceptor moiety are separated by a phenylene linker in a V-shaped spatial arrangement. Such spatial separation and electronic decoupling between the donor and the acceptor moieties leads to low singlet-triplet energy gaps and favors efficient exciton up-conversion.
    Language English
    Publishing date 2023-03-02
    Publishing country England
    Document type Journal Article
    ZDB-ID 1472881-3
    ISSN 1364-548X ; 1359-7345 ; 0009-241X
    ISSN (online) 1364-548X
    ISSN 1359-7345 ; 0009-241X
    DOI 10.1039/d2cc06978d
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Facile Functionalization of Ambipolar, Nitrogen-Doped PAHs toward Highly Efficient TADF OLED Emitters.

    Wagner, Jakub / Kumar, Dharmendra / Kochman, Michał Andrzej / Gryber, Tomasz / Grzelak, Magdalena / Kubas, Adam / Data, Przemysław / Lindner, Marcin

    ACS applied materials & interfaces

    2023  Volume 15, Issue 31, Page(s) 37728–37740

    Abstract: Despite promising optoelectronic features of N-doped polycyclic aromatic hydrocarbons (PAHs), their use as functional materials remains underdeveloped due to their limited post-functionalization. Facing this challenge, a novel design of N-doped PAHs with ...

    Abstract Despite promising optoelectronic features of N-doped polycyclic aromatic hydrocarbons (PAHs), their use as functional materials remains underdeveloped due to their limited post-functionalization. Facing this challenge, a novel design of N-doped PAHs with D-A-D electronic structure for thermally activated delayed fluorescence (TADF) emitters was performed. Implementing a set of auxiliary donors at the meta position of the protruding phenyl ring of quinoxaline triggers an increase in the charge-transfer property simultaneously decreasing the delayed fluorescence lifetime. This, in turn, contributes to a narrow (0.04-0.28 eV) singlet-triplet exchange energy split (Δ
    Language English
    Publishing date 2023-07-27
    Publishing country United States
    Document type Journal Article
    ISSN 1944-8252
    ISSN (online) 1944-8252
    DOI 10.1021/acsami.3c07552
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Carbazole-Based Colorimetric Anion Sensors.

    Maslowska-Jarzyna, Krystyna / Korczak, Maria L / Wagner, Jakub A / Chmielewski, Michał J

    Molecules (Basel, Switzerland)

    2021  Volume 26, Issue 11

    Abstract: Owing to their strong carbazole chromophore and fluorophore, as well as to their powerful and convergent hydrogen bond donors, 1,8-diaminocarbazoles are amongst the most attractive and synthetically versatile building blocks for the construction of anion ...

    Abstract Owing to their strong carbazole chromophore and fluorophore, as well as to their powerful and convergent hydrogen bond donors, 1,8-diaminocarbazoles are amongst the most attractive and synthetically versatile building blocks for the construction of anion receptors, sensors, and transporters. Aiming to develop carbazole-based colorimetric anion sensors, herein we describe the synthesis of 1,8-diaminocarbazoles substituted with strongly electron-withdrawing substituents, i.e., 3,6-dicyano and 3,6-dinitro. Both of these precursors were subsequently converted into model diamide receptors. Anion binding studies revealed that the new receptors exhibited significantly enhanced anion affinities, but also significantly increased acidities. We also found that rear substitution of 1,8-diamidocarbazole with two nitro groups shifted its absorption spectrum into the visible region and converted the receptor into a colorimetric anion sensor. The new sensor displayed vivid color and fluorescence changes upon addition of basic anions in wet dimethyl sulfoxide, but it was poorly selective; because of its enhanced acidity, the dominant receptor-anion interaction for most anions was proton transfer and, accordingly, similar changes in color were observed for all basic anions. The highly acidic and strongly binding receptors developed in this study may be applicable in organocatalysis or in pH-switchable anion transport through lipophilic membranes.
    Language English
    Publishing date 2021-05-27
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 1413402-0
    ISSN 1420-3049 ; 1431-5165 ; 1420-3049
    ISSN (online) 1420-3049
    ISSN 1431-5165 ; 1420-3049
    DOI 10.3390/molecules26113205
    Database MEDical Literature Analysis and Retrieval System OnLINE

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