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Wyszukujesz frazę "Wojtkowski, A." wg kryterium: Wszystkie pola

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    Wyświetlanie 1-9 z 9
    Tytuł:
    Optical Fourier Domain Interferometry as a novel tool for biological imaging
    Autorzy:
    Rumiński, D.
    Kowalczyk, A.
    Wojtkowski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1396523.pdf
    Data publikacji:
    2011
    Wydawca:
    Fundacja na Rzecz Młodych Naukowców
    Tematy:
    OFDI
    swept source
    OCT
    medical imaging
    eye imaging
    Michelson interferometer
    interferometry
    Opis:
    Purpose of this work is to introduce results of biological objects measurements with Optical Coherence Tomography system working with swept source laser (OFDI system). This specified source with spectrum centred around 1040 nm is dedicated to measure posterior segment of the eye. OCT with this wavelength is expected to be next generation for this sort of systems. Although commonly used 800 nm source enables imaging retina, deeper tissue layers are not available with this wavelength. Longer wavelengths in range of infrared spectrum (e.g. 1040 nm) are being weakly scattered which enables to go down to the choroid layer [1]. Examination this structure composed mostly from blood vessels might be very important for early diagnosis of eye diseases. In this paper system setup, swept source scheme and eye images would be introduced.
    Źródło:
    Challenges of Modern Technology; 2011, 2, 1; 16-18
    2082-2863
    2353-4419
    Pojawia się w:
    Challenges of Modern Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Frequency Domain Optical Coherence Tomography Techniques in Eye Imaging
    Autorzy:
    Wojtkowski, M.
    Kowalczyk, A.
    Targowski, P.
    Gorczyńska, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/2035626.pdf
    Data publikacji:
    2002-12
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    42.30.Wb
    42.66.Ew
    42.66.-p
    07.60.-j
    07.60.Ly
    Opis:
    This contribution presents an application of frequency-domain optical tomography to ophthalmology. Essential theoretical foundations of time-domain and frequency-domain optical tomography are presented. Images of sections through the anterior chamber, the corneo-scleral angle and fundus of the eye are reconstructed from the spectral fringes. The morphological information gained by tomograms is important for diagnosing and planning of a treatment of glaucoma.
    Źródło:
    Acta Physica Polonica A; 2002, 102, 6; 739-746
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effects of granulocyte colony-stimulating factor therapy for osteogenesis imperfecta: a case report
    Autorzy:
    Paszko-Patej, G.
    Sienkiewicz, D.
    Kułak, W.
    Okurowska-Zawada, B.
    Wojtkowski, J.
    Kalinowska, A.
    Okulczyk, K.
    Sochoń, K.
    Dmitruk, E.
    Mirska, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1918408.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Medyczny w Białymstoku
    Tematy:
    Osteogenesis imperfecta
    granulocyte colony-stimulating factor
    muscle strength
    Opis:
    Introduction: Osteogenesis imperfecta (OI) is a genetic disorder of increased bone fragility and low bone mass. OI type IV. Materials and methods: We examined the safety and effectiveness of a low dose of analog granulocyte colony-stimulating factor (G-CSF) in a 15-year-old girl OI type IV. G-CSF 5 μg/kg was given subcutaneously, for 5 days/month for 3, 6 and 12 months. Laboratory tests, including blood, biochemical tests were performed, in addition to clinical examination.Results: Clinical examination revealed an increase of muscle strength in the upper and lower limbs between base line and day 6 and 12 months. We found no serious adverse events. Leukocyte levels remained below 38,000/μL. Low dose G-CSF was safe and well tolerated by the patient. Conclusions: A significant increase in muscle strength in this patient may indicate beneficial effects of G-CSF factor in this disorder. These results are inspiring and warrant further studies.
    Źródło:
    Progress in Health Sciences; 2017, 7(1); 205-208
    2083-1617
    Pojawia się w:
    Progress in Health Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Safety and efficacy of granulocyte colony stimulating factor in a patient with tetraplegia caused by cervical hyperextension injury: a case report
    Autorzy:
    Okurowska-Zawada, B
    Kułak, W
    Sienkiewicz, D
    Paszko-Patej, G
    Dmitruk, E
    Kalinowska, A
    Wojtkowski, J
    Korzeniecka–Kozerska, A
    Powiązania:
    https://bibliotekanauki.pl/articles/1916580.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Medyczny w Białymstoku
    Tematy:
    Cervical hyperextesniosn
    spinal cord injury
    tetraplegia
    male
    Opis:
    he authors present the case of a 17-year-old boy who suffered a cervical spinal injury as a result of the sharp bending of the head after slipping (without falling). After about 30 minutes, he began to feel tingling in the limbs and he developed tetraparesis. He went through physical rehabili-tation, psychological rehabilitation, occupational therapy, and periodic catheterization. Additionally, we introduced to him a low dose of analog granulocyte colony-stimulating factor (G-CSF). G-CSF 5 μg/kg was given subcutaneously daily for 5 days per month for 3 months, again after 6 months, and again after 10 months. The boy could sit indecently and walk with assistance. A significant increase in muscle strength in this patient with tetraplegia after 10 months of treatment may indicate beneficial effects of G-CSF in this disorder.
    Źródło:
    Progress in Health Sciences; 2014, 4, 2; 181-184
    2083-1617
    Pojawia się w:
    Progress in Health Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effects of granulocyte colony-stimulating factor treatment in children and patients with cerebral palsy: a preliminary report
    Autorzy:
    Paszko-Patej, G.
    Kułak, W.
    Okurowska-Zawada, B.
    Sienkiewicz, D.
    Wojtkowski, J.
    Sochoń, K.
    Kalinowska, A.
    Okulczyk, K.
    Topór, E.
    Mirska, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1918403.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Medyczny w Białymstoku
    Tematy:
    Granulocyte colony-stimulating factor
    children
    cerebral palsy
    Opis:
    Introduction: Recent reports have revealed that neuroinflammation and apoptosis in brains affected by cerebral palsy could be therapeutic targets. Granulocyte colony-stimulating factor (G-CSF) exerts anti-inflammatory and antiapoptosis effects and stimulates the proliferation of neural stem and progenitor cells in the brain. Purpose: To assess the efficacy and safety of G-CSF treatment in children and adolescents with CP. Materials and methods: Six patients with spastic tetraplegia CP aged 3-15 years were enrolled in this study. Five patients had GMFCS (Gross Motor Function Classification System) level at V, three children had epilepsy, and three had severe mental retardation. We used the gross motor function measure-66 (GMFM-66) to assess motor function.GCSF (5μg/kg/body/day) was administered subcutaneously for five consecutive days during the four months. The parents also evaluated the physical and mental development of their children. Results: We observed improvement in motor function in patients with CP on the GMFM-66 scale. Parents reported improvement in behavior, speech development, and a decrease in spasticity in children with CP. G-CSF therapy was well-tolerated. No side effects were observed during the study. Conclusions: Our preliminary report suggests that G-CSF treatment improves motor and mental function in patients with CP. Further studies are needed to confirm these observations
    Źródło:
    Progress in Health Sciences; 2017, 7(1); 78-82
    2083-1617
    Pojawia się w:
    Progress in Health Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Granulocyte colony-stimulating factor therapy for facioscapulohumeral dystrophy: a case report
    Autorzy:
    Sienkiewicz, D.
    Kułak, W.
    Okurowska-Zawada, B.
    Paszko-Patej, G.
    Wojtkowski, J.
    Dmitruk, E.
    Okulczyk, K.
    Sochoń, K.
    Kalinowska, A.
    Żak, J.
    Pogorzelski, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/1918329.pdf
    Data publikacji:
    2016
    Wydawca:
    Uniwersytet Medyczny w Białymstoku
    Tematy:
    Facioscapulohumeral dystrophy
    granulocyte colony-stimulating factor
    muscle strength
    Opis:
    We examined the safety and effectiveness of a low dose of analog granulocyte-colony stimulating factor in a 15-year-old boy with facioscapulohumeral dystrophy. The onset of disease was noted at 12 years of age. The physical examination noted general muscle atrophy more pronounced at left side of the body. He was able to walk 300 meters within 6 minute walk test. Granulocyte colony-stimulating factor 5 μg/kg was given subcutaneously daily for 5 days/month for 1, 2, 3, 6 and 12 months. Clinical examination, laboratory tests including blood, biochemical tests, and CD34+ cells were performed. A significant increase of muscle strength in the lower and upper limbs between baseline, and after 3 months of treatment, after 6, and after 12 months was found. He was able to walk 480 meters within 6 minutes after 12 months. Electromyography demonstrated increase of amplitude in the examined in upper and lower limbs after six months compared to baseline. Leukocyte levels remained below 25000/μL. CD34+ increased significantly at day 5 of granulocyte colony-stimulating factor admini-stration. It was safe and well tolerated by the patient. A significant increase in muscle strength in this patient with facioscapulohumeral dystrophy after 3 months of treatment, after 6, and after 12 months since the first treatment course was completed may indicate beneficial effects of granulocyte colony-stimulating factor in this disorder.
    Źródło:
    Progress in Health Sciences; 2016, 6(2); 175-177
    2083-1617
    Pojawia się w:
    Progress in Health Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Quality of life of children suffering from motor disabilities as evaluated by their parents
    Autorzy:
    Wojtkowski, J.
    Sienkiewicz, D.
    Okurowska-Zawada, B.
    Paszko-Patej, G.
    Konopka, A.
    Okulczyk, K.
    Średzińska, K.
    Dmitruk, E.
    Mirska, A.
    Kułak, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/1918580.pdf
    Data publikacji:
    2018-01-09
    Wydawca:
    Uniwersytet Medyczny w Białymstoku
    Tematy:
    Quality of life
    motor disability
    children
    parents
    Opis:
    Purpose: We assessed the quality of life of children with motor disabilities in comparison with healthy children, as evaluated by their parents, using the CHQ-PF28 questionnaire (Child Health Questionnaire—Parent Form). Materials and methods: In a prospective study, we evaluated the quality of life of 105 children with motor disabilities. Results: Our research showed lower quality of life in the group of children with motor disabilities compared with controls, both in terms of physical and psychosocial health. Significant correlations between independent walking and physical functioning, general behavior, and mental health of children suffering from motor disabilities were found. According to the average indices of quality of life of children suffering from motor disabilities, depending on sex, the greatest differences occurred in behavior and change of health status, while the smallest differences in self-esteem and parental involvement, compared with controls. In the case of healthy children, the largest differences appeared in the perception of pain, behavior, and self-esteem; whereas, the smallest variations occurred in the change of health status and physical activity. Conclusion: Children suffering from motor disabilities demonstrate lower quality of life compared with healthy children.
    Źródło:
    Progress in Health Sciences; 2017, 7(2); 60-66
    2083-1617
    Pojawia się w:
    Progress in Health Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The effect of diets containing heated fats on blood serum, heart and liver malondialdehyde and blood serum cholesterol in rats
    Autorzy:
    Tokarz, A
    Postupolski, J.
    Wojtkowski, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/1371456.pdf
    Data publikacji:
    1992
    Wydawca:
    Instytut Rozrodu Zwierząt i Badań Żywności Polskiej Akademii Nauk w Olsztynie
    Tematy:
    diet
    fat
    blood serum
    malondialdehyde
    heated fat
    heart
    liver
    cholesterol
    rat
    Źródło:
    Polish Journal of Food and Nutrition Sciences; 1992, 01, 4; 67-77
    1230-0322
    2083-6007
    Pojawia się w:
    Polish Journal of Food and Nutrition Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Remote monitoring of semiconductor switches’ temperatures in a bidirectional DC / AC / DC converter
    System zdalnego monitorowania temperatur tranzystorów przekształtnika DC / AC / DC
    Autorzy:
    Wojtkowski, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/267354.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Gdańska. Wydział Elektrotechniki i Automatyki
    Tematy:
    digital temperature sensors
    temperature monitoring system
    1-Wire bus
    node-RED
    cyfrowe czujniki temperatury
    system monitorowania temperatury
    magistrala 1-Wire
    Node-RED
    Opis:
    The paper presents a temperature monitoring system of a bidirectional DC / AC / DC converter. The system allows for remote monitoring of two temperatures (the number can be increased if necessary). The monitoring console is available on any mobile or stationary device connected to the local Wi-Fi network or to the Internet (if it has a static IP). By implementing the remote monitoring, important temperatures of working converter can be monitored from any place with the Internet access. The presented solution may be used in laboratories developing new topologies of power converters that should be monitored for a long time before practical implementation.
    W artykule przedstawiono system zdalnego monitorowania temperatur półprzewodnikowych przyrządów mocy w przekształtniku DC / AC / DC. Prezentowany system pozwala na monitorowanie dwóch temperatur, jednak liczbę czujników oraz aktuatorów można znacznie rozszerzyć w razie potrzeby. Aktualnie monitorowane są dwie temperatury radiatorów górnego i dolnego mostka przekształtnika DC /AC /DC. Proponowane rozwiązanie bazuje na cyfrowych czujnikach temperatury DS18B20. Są one podłączone poprzez magistralę 1-Wire z jednopłytkowym mikrokomputerem Raspberry Pi w wersji 3. Interfejs 1-Wire oraz interfejs użytkownika umożliwiający monitorowanie temperatur zostały zaprojektowane w środowisku Node-RED. Konsola użytkownika jest dostępna na każdym urządzeniu podłączonym do lokalnej sieci Wi-Fi. Jeśli zastosowane Raspberry Pi posiada stały adres IP dostęp do konsoli jest możliwy z sieci Internet. Proponowane rozwiązanie może być przydatne przy projektowaniu i badaniu nowych konfiguracji i topologii pracy przekształtników energoelektronicznych, które powinny być testowane przez długi czas w laboratorium zanim znajdą zastosowanie komercyjne. System umożliwia przesyłanie sygnałów do przekształtnika czyli zdalne ustawienia.
    Źródło:
    Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej; 2018, 59; 207-210
    1425-5766
    2353-1290
    Pojawia się w:
    Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-9 z 9

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