نتایج جستجو برای: روش عددی mom
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Introduction While clinical reports have been encouraging for metal-on-metal (MOM) hip bearings, some adverse effects have been reported [1]. A puzzling phenomenon has also been observed in hip simulators wherein one or more MOM bearings revealed 2 to 9 fold higher wear than apparently ‘identical’ bearings [2,3]. This phenomenon we termed ‘breakaway wear’ (BA-wear) has yet to be investigated. T...
BACKGROUND Many complex and subtle aspects relating to mothers and food choice are not well understood. Mothers play a primary role in their children's food choices, but research has not specifically examined how matrilineal family members who do not reside in the same household, such as a mother's mother, aunt, or grandmother, influence the current family's food choices. METHODS Seven partic...
BACKGROUND Metal-on-metal hip resurfacing arthroplasty (MoM HRA) may offer potential advantages over total hip arthroplasty (THA) for certain patients with advanced osteoarthritis of the hip. However, the cost effectiveness of MoM HRA compared with THA is unclear. QUESTIONS/PURPOSES The purpose of this study was to compare the clinical effectiveness and cost-effectiveness of MoM HRA to THA. ...
BACKGROUND Baseline distributions of pregnancy disorders' biomarkers PlGF and PAPP-A levels are primarily based on Western European populations of Caucasian ethnicity. Differences in PAPP-A and PlGF concentrations by ethnicity have been observed, with increased levels in Afro-Caribbean, East Asian, and South Asian women. Baseline concentrations of sub-Saharan African women have not been evaluat...
In this paper, an improved hybrid scheme combining the method of moment (MoM) and physical optic (PO) is proposed to analyze composite scattering from multiple 3D conductingobjects above a 2D random rough dielectric surface. calculation scheme, surface calculated using PO target by MoM. The coupling interactions between targets are considered domain distribution (DDM), where matrix equations co...
To establish relation between fetal MCA’s PSV in 3rd trimester and anemia as non-invasive method. The study was done retrospectively, including 40 pregnant women who had raised of MCA (Multiple Median(MoM) >1.5) blood flow third correlated with the new born’s Hemoglobin Blood indices (MCV MCH). Forty fetuses more than 1.5 MoM(coming out to be around 66.50 ± 12.35 cm/seconds), after delivery,...
In 45 cases of trisomy 18 and 493 control pregnancies at 10-14 weeks of gestation, maternal serum inhibin A, total activin A, free beta-hCG and PAPP-A were measured. In the trisomy 18 pregnancies the median values were 0.74 MoM for inhibin A, 1.23 MoM for activin A, 0.38 MoM for free beta-hCG and 0.16 MoM for PAPP-A. The degree of deviation from normal in the levels of inhibin and activin is sm...
A hybrid finite-element-method/method-of-moments (FEM/MoM) approach is applied to the analysis of a gapped power-bus structure on a printed circuit board. FEM is used to model the details of the structure. MoM is used to provide a radiation boundary condition to terminate the FEM mesh. Numerical results exhibit significant errors when the FEM/MoM boundary is chosen to coincide with the physical...
Background The impact of physical activity (PA) during pregnancy on obstetrical outcomes remains controversial. We followed pregnant women who reported more than 3 hours of sustained PA per week during the first trimester of pregnancy. Cases Total five eligible women were followed. We observed small placenta from the first trimester (median: 0.68; interquartile [IQ]: 0.62-0.97 multiples of medi...
BACKGROUND Metal-on-metal (MOM) hip resurfacing arthroplasty (HRA) is in clinical use as an appropriate alternative to total hip arthroplasty in young patients. In this technique, a metal cap is placed on the femoral head to cover the damaged surface of the bone and a metal cup is placed in the acetabulum. OBJECTIVES The primary objective of this analysis was to compare the revision rates of ...
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