39,617 research outputs found
Laboratory verification respiratory measurements. IMBLMS phase B.4, appendix C, section 13
The B-4 IMBLMS preliminary design of the respiratory measurement element includes certain techniques and apparatus which are quite different from those included in the B-3 version previously delivered to NASA-MSC. A working model was constructed in the laboratory to prove the feasibility of certain key features. The most critical of these is the capability of switching sample gases into the mass spectrometer from two different sources during a single breath cycle. Results proved the feasibility of all of the concepts which were tested, and certain refinements and improvements were included, as well
Laboratory verification optical signal coupling. IMBLMS phase B.4, appendix C, section 12
The design of optical couplers is described for use in the IMBLMS hardwire mode. One coupler transmits data from the bio-belt to the central data system and the other coupler transmits audio frequencies in the opposite direction, from the central data system to the bio-belt. The objective is to isolate the ground system at the body worn bio-belt electronics and the main ground at the central data system, or biomedical and behavioral station. The safety of the subject wearing the bio-belt measuring electronics is the purpose in isolating the wearer from the main system ground
The factors influencing cesarean-section rates-A narrative review from Pakistan
The significant increase in the rate of cesarean section is a major public health issue. The World Health Organization recommends C-section rates not to be greater than 10% and not lower than 5% as both the indicated limits can adversely affect maternal and newborn health. The rate of C-section deliveries is 22% according to recent Pakistan demographics and Health Survey of 2017-2018. This study contributes to the existing literature by examining the factors influencing high C-section rates in Pakistan. A narrative review of published literature between 2000 to 2020, on “factors influencing C-section rates in Pakistan” was done. The findings highlighted five factors that primarily influence utilization of C-section which include: 1. Accessibility to utilize C-section, 2. Association of C-section rates with socioeconomic profile, 3. Elective C-section, 4. Medical conditions as a cause of C-section, 5. C-section as a source of business. Pakistan like other Low middle income countries (LMICs) is facing the increased disease burden on its week and fragile health system. The over utilization of C-section rates has imposed additional burden on the health care system of Pakistan as well as increased economic and health resource liability on maternal care
Hybrid-cascade Coupled-Line Phasers for High-resolution Radio-Analog Signal Processing
A hybrid-cascade (HC) coupled-line phaser configuration is presented to
synthesize enhanced group delay responses for high-resolution Radio-Analog
Signal Processing (R-ASP). Using exact analytical transfer functions, the
superiority of HC coupled-line phasers over conventional transversally cascaded
C-section phasers is demonstrated and verified using full-wave simulations.Comment: 2 pages, 5 figure
Signs or Symptoms of Complications in Pregnancy and Risk of Caesarean Section: an Indonesia National Study
Background: In the last years, the frequency of cesarean section (c-section) has risen. This study was aimed to identify several signs or symptoms of complications during pregnancy increased the risk of c-section (c-section).Methods: Data were derived from the Basic Health Survey (Riskesdas) 2010. The sub-sample was married or divorced women aged 10-49 years between January 1, 2005 and August 2010 in Indonesia based on multistage stratified sampling methods. Analysis used Cox regression with constant time.Results: The c-section rate was 10.8% among 20,501 women. Urban and rural ratio of c-section rate was 2.9. Women who reported than who did not report any signs or symptoms of complications during their pregnancies had a higher risk of c-section. Women who reported high fever had 2.3-fold for c-section [adjusted relative risk (RRa) = 2.33; 95% confidence interval (CI) = 1.69-3.34]. Moreover, those who reported compared to those who did reported bleeding had 2.1-fold increase risk of c-section (RRa = 2.12; 95% CI = 1.75-2.58). The lowest risk (96%) was among those who ever had convulsion/fainted (RRa = 1.96; 95% CI = 1.41-2.73).Conclusion: Women who reported any signs or symptoms of complications during their pregnancies had an increased risk of c-section. (Health Science Indones 2012;2:71-6)
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