Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

Wyszukujesz frazę "SBP" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Gender differences in circulatory adjustment to head-up tilt test in health
Autorzy:
Rimi, S.A.
Rezwana, I.
Sultana, S.
Ferdousi, S.
Powiązania:
https://bibliotekanauki.pl/articles/2087921.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Opolski. Instytut Nauk o Zdrowiu
Tematy:
male
female
tilt test
SBP
DBP
Opis:
Background: A tilt table test is a useful, non-invasive technique that has been used for the last few decades to detect autonomic failure. The response to tilting may vary physiologically between sexes. Aim of the study: To assess the gender-specific changes in cardiovascular response to a tilt test in healthy subjects. Material and methods: This experimental study was conducted on 90 healthy males and females aged 18–60 years, from 2019 to 2020. Forty-five male subjects and 45 female subjects were included. Using a motorized tilt table, a tilt table test was performed at 60 degrees for 10 minutes. An automatic sphygmomanometer was used to measure blood pressure (BP), and heart rate (HR) and a pulse oximeter was used for the measurement of peripheral capillary oxygen saturation (SpO₂). An independent sample t test, a multiple regression analysis and a chi squared test were conducted for statistical analyses. Results: A significantly greater drop in systolic blood pressure (SBP) was observed in females, compared to males after tilting. In 5.5% of the subjects, orthostatic intolerance occurred, but there were no significant age or gender- specific differences in subjects with orthostatic intolerance. Conclusions: This study concluded that in response to tilting, cardiovascular response was less pronounced in females.
Źródło:
Medical Science Pulse; 2020, 14, 2; 10-14
2544-1558
2544-1620
Pojawia się w:
Medical Science Pulse
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An Experiment of the Actual Vertical Resolution of the Sub-bottom Profiler in an Anechoic Tank
Autorzy:
Wang, Fangqi
Dong, Lifeng
Ding, Jisheng
Zhou, Xinghua
Tao, Changfei
Lin, Xubo
Liang, Guanhui
Powiązania:
https://bibliotekanauki.pl/articles/177846.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
SBP
sub-bottom profiler
PW
pulse width
vertical resolution
DRE
duration of reflection event
Opis:
Sub-bottom profiler (SBP) is an acoustic instrument commonly used to survey underwater shallow geological structure and embedded objects whose most important performance parameter is the actual vertical resolution. This paper presented a methodology to measure and evaluate the actual vertical resolution of SBP based on an experiment in an anechoic tank, which was divided into three components: building of artificial geological model, measurement of acoustic parameters, and determination of actual vertical resolution of the acoustic profiles. First, the wedge-shaped geological model, whose thickness could be accurately controlled, was designed and built in an anechoic tank to try to directly measure the vertical resolution of SBP. Then, the acoustic pulse width of SBP was measured to calculate the theoretical general vertical resolution and extreme vertical resolution. Finally, based on the acoustic profiles obtained in the experiment, the method which was used to evaluate the actual vertical resolution by measuring the duration of reflection event was put forward. Due to comparing measurement data of different parameter settings of the SBP, the study has revealed that the SBP had the lowest resolution in the 4 kHz–500 μs setting, which was 226.5μs, or 36.2 cm, and the highest resolution in the 15 kHz–67 μs setting, which was 72.7 μs, or 11.6 cm. The vertical resolution decreased with the increase of the pulse width. The results also showed that the actual resolution was close to the theoretical general resolution and far from the extreme resolution.
Źródło:
Archives of Acoustics; 2019, 44, 1; 185-194
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

    Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies