Autor: Rój, R. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Effects of magnetostimulation on muscle activity and pain in edentulous adults with temporomandibular disorders
Autorzy:: Rój, R.
Chladek, G.
Wyszyńska, M.
Morawiec, T.
Kasperski, J.
Powiązania:: https://bibliotekanauki.pl/articles/307170.pdf
Data publikacji:: 2018
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: elektromiografia
terapia polem magnetycznym
fizykoterapia
temporomandibular disorders
electromyography
magnetic field therapy
Opis:: Introduction: Multifactorial aetiologies of painful temporomandibular disorders (TMD) have an impact on correct diagnosis and consequently prevent proper treatment. Aim of the study: The aim of the study was to evaluate the effect of magnetic stimulation on electromyographic activity in temporal muscles and masseters in patients using occlusal splints. Materials and methods: The examined group consisted of 40 edentulous patients with TMD. The patients were examined based on Helkimo Index. Next, electromyographic activity of the temporal muscle and masseter were investigated using 8-channel surface electromyography. All patients received acrylic occlusal splints for 12 weeks. The group qualified for the study included 20 randomized patients, whose therapy was additionally carried out by extremely low-frequency magnetic fields for a period of 21 days. Following examinations were conducted after 3, 6 and 12 weeks with surface electromyography recording of the examined muscles. Patients received occlusal splint corrections using the T-Scan III system. The clinical evaluation of TMD was analysed using Helkimo index and VAS scale before and after the treatment. All the data were analysed using Statistica 12.5 PL. Results: Patients with combination therapy had lower asymmetry of temporal muscle activity. Conclusions: Combination therapy using magnetic stimulation reduced intensity of pain in patients with TMD and decreased values of the Helkimo indices.
Źródło:: Acta of Bioengineering and Biomechanics; 2018, 20, 2; 89-99
1509-409X
2450-6303
Pojawia się w:: Acta of Bioengineering and Biomechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: The influence of low-frequency variable magnetic fields in reducing pain experience after dental implant treatment
Autorzy:: Kasperski, J.
Rosak, P.
Rój, R.
Czelakowska, A.
Sieroń-Stołtny, K.
Pasek, J.
Sieroń, A.
Powiązania:: https://bibliotekanauki.pl/articles/306976.pdf
Data publikacji:: 2015
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: implantologia
implant
pole magnetyczne
stymulacja magnetyczna
implantology
magnetoledotherapy
magnetostimulation
Opis:: The paper presents the evaluation of analgesic effect or magnetostimulation and magnetoledtherapy after implantation treatment. The study was conducted on 3 groups (Z applicator, IR applicator and conventional drug therapy) of 10 patients each of whom underwent a single implantation. Magnetostimulation was carried out using Viofor JPS Delux equipment. The patients were exposed to magnetic field for approx. 15 minutes before the treatment and during the visit after 6 hours after the implantation procedure. Pain perception of patients was recorded on the Visual Analogue Scale (VAS). Results: the most intense pain was reported in the control group. The least intense pain appeared in the group with Z applicator. Patients using Z and IR applicators took analgesics less frequently and used much weaker analgesics than the control group. Pain perceived in the first group was between 0 and 2, while in the second group – between 2 and 3, and in the control group – between 3 and 5 in VAS scale. Magnetostimulation reduces patient’s demand for analgesics after implantation procedures and yielded better effects in reduction of pain in comparison with magnetostimulation with LED therapy.
Źródło:: Acta of Bioengineering and Biomechanics; 2015, 17, 4; 97-105
1509-409X
2450-6303
Pojawia się w:: Acta of Bioengineering and Biomechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Fuzzy prediction of fetal acidemia
Autorzy:: Czabański, R.
Roj, D.
Jeżewski, J.
Horoba, K.
Jeżewski, M.
Powiązania:: https://bibliotekanauki.pl/articles/333483.pdf
Data publikacji:: 2011
Wydawca:: Uniwersytet Śląski. Wydział Informatyki i Nauki o Materiałach. Instytut Informatyki. Zakład Systemów Komputerowych
Tematy:: monitorowanie płodu
tętno płodu
klasyfikacja sygnału
systemy rozmyte
fetal monitoring
fetal heart rate
signal classification
fuzzy systems
Opis:: Cardiotocography is the primary method for biophysical assessment of a fetal state. It is based mainly on the recording and analysis of fetal heart rate signal (FHR). Computer systems for fetal monitoring provide a quantitative description of FHR signals, however the effective methods for their qualitative assessment are still needed. The measurements of hydronium ions concentration (pH) in newborn cord blood is considered as the objective indicator of the fetal state. Improper pH level is a symptom of acidemia being the result of fetal hypoxia. The paper proposes a twostep analysis of signals allowing for effective prediction of the acidemia risk. The first step consists in the fuzzy classification of FHR signals. The task of fuzzy inference is to indicate signals that according to the FIGO guidelines represent the fetal wellbeing. These recordings are eliminated from the further classification with Lagrangian Support Vector Machines. The proposed procedure was evaluated using data collected with computerized fetal surveillance system. The classification results confirmed the high quality of the proposed fuzzy method of fetal state evaluation.
Źródło:: Journal of Medical Informatics & Technologies; 2011, 17; 81-87
1642-6037
Pojawia się w:: Journal of Medical Informatics & Technologies
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Methane and Nitrous Oxide Emissions from Agriculture on a Regional Scale
Autorzy:: Wysocka-Czubaszek, A.
Czubaszek, R.
Roj-Rojewski, S.
Banaszuk, P.
Powiązania:: https://bibliotekanauki.pl/articles/124407.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: methane emissions
nitrous oxide emissions
agriculture
Opis:: Nowadays, agriculture has to meet the growing food demand together with high requirements of environmental protection, especially regarding the climate change. The greenhouse gas emissions differ not only on a global, but also on a regional scale, and mitigation strategies are effective when they are adapted properly. Therefore, the aim of this paper is to present the results of methane (CH₄) and nitrous oxide (N₂O) emissions inventory on a regional level in Poland in years 1999-2015. The CH₄ and N₂O emissions were calculated according to the methodology used by the National Centre for Emissions Management (NCEM) for national inventory for United Nations Framework Convention on Climate Change and Kyoto Protocol. The data were taken from Central Statistical Office of Poland. The CH₄ emissions in all studied years varied strongly between voivodeships and ranged from 5.6-7.5 Gg y^-1 in the Lubuskie Voivodeship to 84.8-104.3 Gg y^-1 in the Mazowieckie Voivodeship. While in most voivodeships the CH₄ emissions dropped down, in Podlaskie, Warmińsko-Mazurskie, and Wielkopolskie voivodeships, the emissions of this gas increased significantly as a consequence of the development of dairy and meat production. In 1999, the highest N₂O fluxes were calculated for the Wielkopolskie (5.7 Gg y-1), Mazowieckie (4.8 Gg y^-1) Kujawsko-Pomorskie (3.5 Gg y^-1) and Lubelskie (3.3 Gg y^-1) voivodeships, while in 2015, the highest nitrous oxide emissions were calculated for the Wielkopolskie (7.3 Gg y^-1), Mazowieckie (5.5 Gg y^-1), Kujawsko-Pomorskie (4.1 Gg y^-1) and Podlaskie (4.1 Gg y^-1) voivodeships. In the studied period, the contribution of N₂O emissions from crop production increased in almost all voivodeships except the Podlaskie, Lubuskie and Warmińsko-Mazurskie regions. The growth in emissions from mineral fertilization and crop residue incorporation, together with the increase of emission from the animal sector in some regions of Poland, resulted in the higher national emission of nitrous oxide in the period of 1999 to 2015. Although there is a range of GHG reduction possibilities, the mitigation should be adapted with caution, on the basis of precisely calculated GHG emissions. The best management practices, if followed carefully, may reduce the environmental burden of the agricultural production and enhance its profitability.
Źródło:: Journal of Ecological Engineering; 2018, 19, 3; 206-217
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Evaluation of predictive capabilities of quantitative cardiotocographic signal features
Autorzy:: Czabański, R.
Jeżewski, M.
Roj, D.
Szaszkowski, Z.
Kupka, T.
Wróbel, J.
Powiązania:: https://bibliotekanauki.pl/articles/332937.pdf
Data publikacji:: 2010
Wydawca:: Uniwersytet Śląski. Wydział Informatyki i Nauki o Materiałach. Instytut Informatyki. Zakład Systemów Komputerowych
Tematy:: monitorowanie płodu
tętno płodu
klasyfikacja sygnału
fetal monitoring
fetal heart rate
signal classification
ROC analysis
Opis:: Cardiotocography (CTG) is the main method of assessment of the fetal state during pregnancy and labour used in clinical practice. It is based on quantitative analysis of fetal heart rate, fetal movements and uterine contractions signals. The evaluation of the CTG signals can be made using criteria recommended by International Federation of Obstetrics and Gynecology. Nevertheless, the diagnosis verification is possible only after the delivery on the basis of newborn assessment. In the proposed work we evaluated the capacity of quantitative analysis of CTG traces in predicting fetal outcome. The relationship between CTG signal features and attributes of fetal outcome was assessed on the basis of ROC curves analysis. The obtained results indicate the adequate predictive capabilities of the selected CTG features especially for fetal outcome assessed with Apgar score and suggest the necessity of applying the criteria for the CTG traces evaluation that are related to the gestational age. Our study also shows the value of the CTG monitoring as a screening procedure providing appropriate confirmation of fetal wellbeing.
Źródło:: Journal of Medical Informatics & Technologies; 2010, 16; 11-17
1642-6037
Pojawia się w:: Journal of Medical Informatics & Technologies
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: A routing protocol for wireless network of bedside monitors in fetal surveillance system
Autorzy:: Seredynski, R.
Horoba, K.
Roj, D.
Bernys, M.
Przybyla, T.
Jezewski, J.
Powiązania:: https://bibliotekanauki.pl/articles/333626.pdf
Data publikacji:: 2012
Wydawca:: Uniwersytet Śląski. Wydział Informatyki i Nauki o Materiałach. Instytut Informatyki. Zakład Systemów Komputerowych
Tematy:: monitorowanie płodu
tętno płodu
sieci bezprzewodowe
protokoły rutowania
symulacja
fetal monitoring
fetal heart rate
wireless networks
routing protocol
simulation
Opis:: The paper presents the methodology of wireless network design, developed according to the requirements originating from existing wired fetal surveillance systems. The proposed network structure is based on popular radio frequency modules, operating in 433/866MHz band. The described solution is a simple and cost effective alternative to the wired networks, and it will vastly increase the mobility of fetal monitors. The authors also describe software tools which were designed for this purpose and the results of simulations performed on their basis.
Źródło:: Journal of Medical Informatics & Technologies; 2012, 21; 27-33
1642-6037
Pojawia się w:: Journal of Medical Informatics & Technologies
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Reconstruction of FHR series recorded via ultrasound - method validation using abdominal fetal electrocardiography
Autorzy:: Kupka, T.
Horoba, K.
Roj, D.
Matonia, A.
Czabanski, R.
Jezewski, M.
Powiązania:: https://bibliotekanauki.pl/articles/333726.pdf
Data publikacji:: 2013
Wydawca:: Uniwersytet Śląski. Wydział Informatyki i Nauki o Materiałach. Instytut Informatyki. Zakład Systemów Komputerowych
Tematy:: fetal heart rate variability
time event series
sampled signal
duplicated sample
zmienność rytmu serca płodu
sygnał próbny
powielona próbka
Opis:: Analysis of variability of the fetal heart rate (FHR) is very important for fetal wellbeing assessment. The beat-to-beat variability is described quantitatively by the indices originated from invasive fetal electrocardiography which provides the FHR signal in a form of time event series. Nowadays, monitoring instrumentation is based on Doppler ultrasound technology. The fetal monitors provide the output signal in a form of evenly spaced measurements. The goal of this work is to present a new method for the FHR signal processing, which enables extraction of time series of consecutive heartbeat intervals from the evenly repeated values. The proposed correction algorithm enables recognition and removal of the duplicated measurements. Reliable evaluation of the algorithm requires the reference event series, thus the FHR signals were obtained from abdominal fetal electrocardiograms to be used in this research study.
Źródło:: Journal of Medical Informatics & Technologies; 2013, 22; 135-141
1642-6037
Pojawia się w:: Journal of Medical Informatics & Technologies
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Efficiency of automated detection of uterine contraction using tocography
Autorzy:: Horoba, K.
Wrobel, J.
Jezewski, J.
Kupka, T.
Czabanski, R.
Roj, D.
Jezewski, M.
Powiązania:: https://bibliotekanauki.pl/articles/334025.pdf
Data publikacji:: 2015
Wydawca:: Uniwersytet Śląski. Wydział Informatyki i Nauki o Materiałach. Instytut Informatyki. Zakład Systemów Komputerowych
Tematy:: uterine contractile activity
tocography
automated contraction detection
aktywność skurczowa macicy
tokografia
automatyczne wykrywanie skurczu
Opis:: Monitoring of uterine contractile activity enables to control the progress of labour. Automated detection of contractions is to be an integral part of the signal analysis implemented in computer aided fetal surveillance system. Evaluation of efficiency of three algorithms for automated detection of uterine contractions in the signal of uterine mechanical activity is presented. These algorithms are based generally on analysis of the frequency distribution of signal values. The reference data in form of beginning and end of contraction episodes were obtained from human expert. Obtained results showed high efficiency of the algorithms tested where the best one ensured the sensitivity and positive predictive value equal to 92.2 and 97.2, respectively.
Źródło:: Journal of Medical Informatics & Technologies; 2015, 24; 207-214
1642-6037
Pojawia się w:: Journal of Medical Informatics & Technologies
Dostawca treści:: Biblioteka Nauki

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