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    Wyświetlanie 1-7 z 7
    Tytuł:
    User-centered design of brain-computer interfaces: OpenBCI.pl and BCI Appliance
    Autorzy:
    Durka, P.
    Kuś, R.
    Żygierewicz, J.
    Michalska, M.
    Milanowski, P.
    Łabęcki, M.
    Sputek, T.
    Laszuk, D.
    Duszyk, A.
    Kruszyński, M.
    Tematy:
    brain-computer interface
    BCI
    steady-state visual evoked potentials
    SSVEP
    eyetracker
    assistive technologies
    Pokaż więcej
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Powiązania:
    https://bibliotekanauki.pl/articles/201581.pdf  Link otwiera się w nowym oknie
    Opis:
    Brain-Computer Interface (BCI) allows for non-muscular communication with external world, which may be the only way of communication for patients in a locked-in state. This paper presents a complete software framework for BCI, a novel hardware solution for stimuli rendering in BCIs based on Steady State Visual Evoked Potentials (SSVEP), and a univariate algorithm for detection of SSVEP in the EEG time series. OpenBCI is a complete software framework for brain-computer interfaces. Owing to an open license and modular architecture, it allows for flexible implementations of different communication channels in the serial or parallel hybrid mode, minimization of costs and improvements of stability and efficiency. Complete software is freely available from http://openbci.pl. BCI Appliance is a hardware solution that allows for dynamic control of menus with stable generation of stimuli for the SSVEP paradigm. The novelty consists of a design, whereby the LCD screen is illuminated from behind using an array of LEDs. Design pioneers also proposed a new line of thought about the user-centered design of BCI systems: a simple box with one on/off button, minimum embedded software, wireless connections to domotic and EEG acquisition devices, and user-controlled mode switching in a hybrid BCI.
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Photochemical cyclopropanation in aqueous micellar media – experimental and theoretical studies
    Autorzy:
    Milton, Joseph P.
    Andersson, Martin
    Gryko, Dorota
    Milanowski, Adam
    Wydawca:
    Royal Society of Chemistry
    Cytata wydawnicza:
    Chem. Commun., 2024 ; https://doi.org/10.1039/D4CC00828F
    Opis:
    While in nature, reactions occur in water-based confined compartments, for a long time, water has been often regarded as an unsuitable medium for organic reactions. We have, however, found that photochemical cyclopropanation of styrenes with diazo compounds or their precursors can be performed in micellar systems. COSMO-RS studies revealed that the reactivity correlates with the predicted critical micelle concentration (CMC), with higher CMC values delivering higher yields.
    European Union, H2020 Marie Skłodowska-Curie grant agreement No. 956324 (MSCA ITN: PhotoReAct); National Science Centre, Maestro UMO-2020-38/A/ST4/00185
    Dostawca treści:
    Repozytorium Centrum Otwartej Nauki
    Artykuł
    Tytuł:
    Reasons for delay in diagnosis and treatment of lung cancer among patients in Lublin Voivodeship who were consulted in Thoracic Surgery Department
    Autorzy:
    Sawicki, M.
    Szczyrek, M.
    Krawczyk, P.
    Rybojad, P.
    Jablonka, A.
    Milanowski, J.
    Wydawca:
    Instytut Medycyny Wsi
    Powiązania:
    https://bibliotekanauki.pl/articles/49545.pdf  Link otwiera się w nowym oknie
    Opis:
    Introduction: Despite the progress which has been made in the diagnosis and treatment of lung cancer, it is still one of the main causes of death in both men and women. The introduction of new therapeutic modalities did not improve the 5-year survival results of lung cancer patients. The Lublin Voivodeship is a sparsely-inhabited area with little urbanization and a population of about 2.2 million people. Only 46.8% of its citizens live in the towns, while the national average is 61.9%. Objectives: The aim of the study was to compare the differences in the periods of time and reasons for delay in diagnosis and initiation of treatment of lung cancer among patients who are inhabitants of the rural and urban regions of Lublin Voivodeship, and who were consulted in Thoracic Surgery Department. Materials and methods: 300 lung cancer patients who were consulted in the Thoracic Surgery Outpatient Clinic or who were hospitalized in the Department of Thoracic Surgery in the period between 2 January 2010 – 7 January 2011 were included in the study. Delays were calculated for two periods of time: 1) time from the first signs of the disease to the first medical examination; 2) the time from the first visit to a doctor to the start of treatment, or disqualification from the causative treatment. The time of the first delay for the urban and rural populations was similar and ranged from 2-37 weeks and 2-23 weeks, respectively. Lack of time and disregard of signs of disease were the most commonly reasons given for the first delay among rural residents. The urban population indicated fear and lack of time as the main reasons of delay. Assessment of the second reason for delay was possible thanks to a specially designed research protocol which gathered the main reasons of delay in several subgroups that enabled their statistical evaluation. The length of second period was similar for both populations. Results: There were no significant differences in the length of the time of delay between the two assessed groups. In both groups, delays dependent on poor healthcare access were similar. Among rural inhabitants, the most often reasons of delay were waiting for hospital admission and re-bronchoscopy. In the urban population, the most common reasons for delay were waiting for hospitalization and CT procedure. Conclusions: The results of the presented research allowed the following conclusions to be drawn: between the two assessed groups there were no differences in the length of the time of delay; 2) delays in diagnosis and treatment were too long for the patients and could affect the severity of the disease and final prognosis; 3) there is a need for intensification of information campaigns on lung cancer in order to reduce the delays dependent on patients, and to improve the cooperation of family doctors, pulmonologists, thoracic surgeons and oncologists.
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Genetic variability of Euglena agilis [Euglenophyceae]
    Autorzy:
    Zakrys, B
    Empel, J.
    Milanowski, R.
    Gromadka, R.
    Borsuk, P.
    Kedzior, M.
    Kwiatowski, J.
    Tematy:
    phylogenesis
    Euglenida
    Euglena
    genetic variability
    molecular systematics
    botany
    taxonomy
    Euglenophyceae
    Euglena agilis
    Pokaż więcej
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Powiązania:
    https://bibliotekanauki.pl/articles/58369.pdf  Link otwiera się w nowym oknie
    Opis:
    The results of the internal transcribed spacer (ITS2) of extrachromosomal rDNA and the chloroplast SSU rDNA sequence analysis presented here confirmed elevated genetic polymorphism revealed earlier by RFLP and RAPD for seven clones of the cosmopolitan species - Euglena agilis Carter. High diversity among these clonal strains was not reflected by morphological criteria, with the exception of the only one character - the ability of the cell in its non-motile dividing states (palmella) to produce mucus and form a slimy envelope. Evolutionary adaptation as formation of slimy envelope may be attributed to different survival strategy of the species by which it adapts to life in a highly variable environment.
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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