comparison of foetal cardiac time intervals at different gestational ages as measured by foetal ecg and foetal mcg
Assessment and quantification of foetal electrocardiography and heart rate variability of normal foetuses from early to late gestational periods 4
... approximately doubled when measured by Nevrokard as compared to F-EXTRACT Increasing values of x, 3x, and 5x measured by F-EXTARCT will be measured as 2x, 6x and 10x, respectively, by Nevrokard And ... was almost times higher when measured by the Nevrokard system Similar to most time- domain variables, the total power measured by the Nevrokard system was approximately twice of that measured by ... Figure 11-4: Bar charts of mean time- domain parameters at various gestational ages as measured by Nevokard and F-EXTRACT 186 Comparison of novel versus commercial HRV softwares 500 70 60 Normalized...
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Assessment and quantification of foetal electrocardiography and heart rate variability of normal foetuses from early to late gestational periods 3
... visualization of the data An automated computation of time- and frequency-domain parameters of foetal HRV was necessary because manual measurement of RR -intervals from raw foetal ECG signal is time- consuming ... gestation, and may reflect the slower maturation of the foetal parasympathetic system as compared to the sympathetic system This implies that the sympathetic control of the foetal heart rate ... reflect true beat-to-beat fHR data Hence, it may be due to this reason that the foetal ECG was successful in detecting both the normal and ectopic beats and thus gave an accurate measure of the true...
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Assessment and quantification of foetal electrocardiography and heart rate variability of normal foetuses from early to late gestational periods 2
... onset of atrial depolarization to the onset of ventricular depolarization, 118 ECG of healthy foetuses Table 7-6: Comparison of foetal cardiac time intervals at different gestational ages as measured ... example of the raw abdominal ECG strip comprising of both maternal and foetal ECG complexes, the online display of foetal and maternal heart rates, as well as the average foetal ECG complex, indicating ... Gestational age fECG- Foetal ECG Values are presented as p (n) where p- percentage of successful fECG waveform measured and n- number of fECG recordings where fECG waveform was successfully measured...
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Assessment and quantification of foetal electrocardiography and heart rate variability of normal foetuses from early to late gestational periodsb 1
... Success rates of foetal ECG recording…………………… 103 4.2 Cardiac time intervals and gestational age……………… 105 4.3 Cardiac time intervals and gender………………………… 112 4.4 Intrapartum cardiac time intervals ……………………… ... 14 The foetal ECG waveform CHAPTER THE FOETAL ECG WAVEFORM The foetal ECG waveform 15 Morphology and time intervals of the foetal ECG Like the adult ECG, the foetal ECG consists of P, QRS and T ... adequate reduction of noise and maternal ECG signals so that foetal cardiac time intervals may be measured Serial fECGs were recorded in 100 foetuses from 18 weeks of gestation till full-term, and...
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Assessment and quantification of foetal electrocardiography and heart rate variability of normal foetuses from early to late gestational periods 5
... use of spectral analysis of foetal HRV as an indirect indication Limitations of the study and future directions 205 of the development of foetal cardiac autonomic activity from 18 weeks of gestation ... activity, and it is reassuring to obtain a CTG that shows accelerations of at least 15 beats per minute for 15 seconds or longer that often occur with foetal movements Thus, by including foetal ... Influence of gestational age and foetal heart rate on the foetal mechanical PR interval J Matern Foetal Neonatal Med 2004; 15(5): 303-305 47 Bonnemeier H, Richardt G, Potratz J, Wiegand UK, Brandes...
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Báo cáo hóa học: " Research Article Time-Frequency Analysis of Heart Rate Variability for Neonatal Seizure Detection" pdf
... spectral estimation, signal detection and classification, and higher-order spectra Professor Boashash is a Fellow of Engineers of Australia, Fellow of IREE, and Fellow of IEEE EURASIP Journal on ... cross-validation method [24] Given a dataset of size N, this method simply consists of splitting the dataset in a set of N − training data and one test data So, for events (seizure and nonseizure) at ... School of Science and Technology, Bond University, as a Professor of electronics In 1991, he joined Queensland University of Technology as the Foundation Professor of signal processing and Director...
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báo cáo hóa học: " Effect of predictive sign of acceleration on heart rate variability in passive translation situation: preliminary evidence using visual and vestibular stimuli in VR " ppt
... levels of the sympathetic nervous system and the parasympathetic nervous system exhibit a trade-off relationship, so the possibility of estimating the state of sympathetic nervous system activity by ... citation purposes) Journal of NeuroEngineering and Rehabilitation 2007, 4:36 teen minutes of heart rate data for each observation condition and calculated the changing of the LF/HF ratio by moving ... each titles of Figure Sex M = male, F = female No sign, 750-Intv, and 3500-Intv + = Increase of LF/HF ratio, - = Decrease of LF/HF ratio from the first phase to the last phase Page of 10 (page...
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Báo cáo y học: "Clinical review: A review and analysis of heart rate variability and the diagnosis and prognosis of infection" pps
... a measure of patterns of variation that are present across a range of time scales Given that the frequency of occurrence of variations is inversely proportional to their magnitude and that magnification ... conclusion was that neonatal heart rate data are predominantly nonstationary and that they become more nonstationary in the early course of sepsis The elements of HRC consist of various statistics and ... associated with a stressed physiologic state and/ or activation of the sympathetic response Nonetheless, alteration of variability offers a clinically useful and quantifiable measure of alteration...
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Age- and sex-related effects on the neuroanatomy of healthy elderly pdf
... found a 71% and 63% increase of the GM and WM rate of atrophy as compared to the rates they estimated in their previous cross-sectional analysis, showing that when a larger period of time (3 to ... highlighted an annual rate of sulcal CSF increase for men and women of 2.1 and 0.06 cm3/year, respectively By contrast, we estimated an annual rate of CSF increase (including sulcal and ventricular ... significantly associated with an increased severity of WMH in our cohort of subjects (Dufouil et al., 2001) Finally, as opposed to what was found for the GM, there were only few areas of accelerated WM atrophy...
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Báo cáo y học: " Post traumatic stress symptoms and heart rate variability in Bihar flood survivors following yoga: a randomized controlled study" ppsx
... pranayamas), the breath rate was lower, approximately breaths per minute In the present study the breath rate was not recorded during the practice of different yoga breathing techniques The breath rates ... Healthcare, Deutschland, Germany) and recording was made using a Standard Limb Lead I configuration Data were acquired at the sampling rate of 1024 Hz and were analyzed offline Noise free data were used ... yoga there was a significant decrease in self-rated fear, anxiety, sadness, disturbed sleep, and in the breath rate The main limitation of the study was that there was no control group Comparisons...
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Báo cáo y học: "Effects of p-Synephrine alone and in Combination with Selected Bioflavonoids on Resting Metabolism, Blood Pressure, Heart Rate and Self-Reported Mood Changes"
... that naringenin and hesperetin up-regulate adiponectin expression, and both activate the peroxisome proliferator-activated receptor-γ (PPARγ) which has been recognized as the master regulator of ... self-report ratings of symptoms increases confidence in the safety of the combination as well as in the blinding procedure used in this study Strengths of the study are the use of randomized placebo-controlled ... normal ranges of 121/74 mm Hg and 70 BPM At the conclusion of the study (75 min.), no increases in either systolic or diastolic blood pressures or heart rate were observed None of the baseline-ending...
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Báo cáo y học: "Effect of Acute Administration of an Herbal Preparation on Blood Pressure and Heart Rate in Humans"
... value was calculated from VO2 and VCO2 The RER was used as an index of fat and carbohydrate oxidation Heart rate (Polar HR Moni- http://www.medsci.org Int J Med Sci 2011, tor, Stamford, CT) and ... in nasal decongestants and is not a constituent of C aurantium Because of the known cardiovascular effects of nor-epinephrine and ephedrine, it has generally been assumed that consumption of p-synephrine ... from 20 to 30 of this session as subjects breathed through a one-way breathing valve Expired air was collected in Douglas bags and contents measured by Ametek Oxygen and Carbon Dioxide Analyzers...
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Tài liệu Determinants of Healthy Eating in Community-dwelling Elderly People pdf
... consumption of certain food groups (meat, fish and eggs, fruit and their products, and fats and oils) in rural-dwelling seniors It was suggested that food distribution systems and decreased buying ... beliefs and behaviours As people age, these factors often lead to alterations in food selection and decreases in food intake.25,36-39 Such modifications may be mediated by marital status, smoking, ... profile in older people.47,73 Collective Determinants of Healthy Eating Food choice in seniors is motivated by individual attributes that are mediated in the larger arena by familial, social and...
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Tài liệu Báo cáo khoa học: Mutational analysis of plasminogen activator inhibitor-1 Interactions of a-helix F and its neighbouring structural elements regulates the activity and the rate of latency transition pdf
... incubations were at 37 °C PAI-1 was incubated at a concentration of 20 lgÆmL)1 and at various time- points, aliquots were taken for preparation of a twofold dilution series in a 96-well plate with ... towards uPA of representative PAI-1 variants as measured in a peptidolytic assay PAI-1 (20 lgÆmL)1) was incubated in HBS supplemented with 0.25% gelatine at 37 °C and at the indicated time- points, ... towards uPA was determined in a peptidolytic assay and expressed as percentage of the theoretical maximum The activity was monitored over time and the rate of latency transition expressed as the functional...
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Báo cáo hóa học: " Dual-task costs while walking increase in old age for some, but not for other tasks: an experimental study of healthy young and elderly persons" pdf
... score of younger (black) or older (grey) subjects, and each pair of bars one task combination Error indicators are 20% of the corresponding standard deviation An age-related deficit of dual-task ... walking as a task, but unfortunately, the resultant data are inconclusive Some of the latter studies compared single- and dual-task performance on only one of the two concurrent tasks, and thus ... al k+ sp e ll Figure Mean dual-task costs of all task combinations in our present and previous study Mean dual-task costs of all task combinations in our present and previous study [31] Each bar...
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báo cáo hóa học: " Influence of passive leg movements on blood circulation on the tilt table in healthy adults" pdf
... (decrease of blood pressure and increase of heart rate), hypoadrenergic orthostatic hypotension (decrease of blood pressure without an increase of heart rate) and postural tachycardia syndrome (massive ... increase of heart rate without decrease in blood pressure) by recording heart rate and blood pressure [31] The tilt table is an apparatus that has become an important part in the evaluation of patients ... investigate if it leads to a stabilization of blood circulation, prevention of neurally mediated syncope in an early state of rehabilitation, decrease in spasticity, prophylaxis of osteoporosis and...
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báo cáo hóa học: " Evaluation of adaptation to visually induced motion sickness based on the maximum cross-correlation between pulse transmission time and heart rate" docx
... is a possibility that the number of repetitions in this experiment was too small for adaptation, and should investigate adaptation in the case of watching other video images and VR experience ... changed based on real -time information of his head-position, which is sometimes used in VR system, there is a possibility that he watches unexpected images, such as upside-down or rotating, and then ... experiment and Page of (page number not for citation purposes) Journal of NeuroEngineering and Rehabilitation 2007, 4:35 performed the analysis of data AT participated in the design of the study...
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Báo cáo hóa học: "Assessment of skeletal muscle fatigue of road maintenance workers based on heart rate monitoring and myotonometry" docx
... subjective view of increased heart rate and muscle fatigue was also assessed using Borg rating scale, ranging from to 20 [7,8] Data were gathered via questionnaires and interviews Assessment of the functional ... work related injuries Similarly, despite mechanization the number of occupational diseases, as well as cumulative trauma disorders (CTD) caused by overwork, has rapidly increased in Latvia They ... accumulation of K+ in the t-tubules and interfibre spaces of the muscle LFF is characterized by a relative loss of force at low frequencies of stimulation and a slow recovery over the course of hours...
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Báo cáo hóa học: " Research Article Diurnal Changes of Heart Rate and Sympathovagal Activity for Temporal Patterns of Transient Ischemic Episodes in 24-Hour Electrocardiograms" pptx
... with the patophysiology of effort angina One of the limitations of this study is the determination of the time, when patient was asleep For the reliability of the correct determination of the night ... We derived timedomain parameters by calculating the mean and standard deviation of the IHR in the intervals and two time series of the frequency-domain parameters of the IHR: fraction of the total ... University of Ljubljana Currently, he is a Full Professor in the Faculty of Computer and Information Science at the University of Ljubljana, and a Research Affiliate at the Massachusetts Institute of Technology...
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Báo cáo lâm nghiệp: "Variability of spruce (Picea abies [L.] Karst.) compression strength with present reaction wood" pdf
... at the stem base was 21° The tree was 110 years old and its total height was 33 m Logs (20 cm high) were taken at various heights (6, 8, 10, 12, 15, 18, 20 and 22 m) and the directions of measurements ... compression strength parallel to grain of compression wood was an object of interest as early as at the end of the 19th century Nördlinger (1890) was the first to state that spruce compression wood will ... correlation coefficient of the selective sample ranged between 0.321 and 0.538, which confirms a middle level of dependence of wood strength on the ring width All the measured data was used to create...
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