Ultrastructural Changes in Human Endometrium with Copper and Nonmedicated Iuds in Utero

El-badrawi, H H; Hafez, E. S. E.; Barnhart, Marion I.; Fayad, M; Shafeek, A

doi:10.1016/s0015-0282(16)45616-5

Cited by 19 publications

(3 citation statements)

References 9 publications

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“…Several such parameters, like rate of antibody binding, 15 IC 50 (inflection point on concentration dependence), 14 Normalized concentration, 35 relative analytical signals 36 are listed in various literatures to help comprehend the impact on total capture. However, in the current study, we use an alternative strategy through scaling analysis to significantly decrease the sample space by employing nondimensional numbers to present the parametric variations 37 . For this purpose, we chose the Peclet Number (Pe) and Damköhler Number (Da), which are relevant here.…”

Section: Parametric Studies Through Scaling Analysismentioning

confidence: 99%

“…However, in the current study, we use an alternative strategy through scaling analysis to significantly decrease the sample space by employing non-dimensional numbers to present the parametric variations. 37 For this purpose, we chose the Peclet number (Pe) and Damköhler number (Da), which are relevant here. Pe indicates the relative importance of convection and diffusion.…”

Section: Parametric Studies Through Scaling Analysismentioning

confidence: 99%

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Computational modelling of a competitive immunoassay in lateral flow diagnostic devices

2023

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Section: Parametric Studies Through Scaling Analysismentioning

confidence: 99%

Section: Parametric Studies Through Scaling Analysismentioning

confidence: 99%

Computational modelling of a competitive immunoassay in lateral flow diagnostic devices

2023

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“…The gas-phase system is governed by the Navier-Stokes (mass, momentum) equations [18]. The mathematical description of the equations used is the following:…”

Section: Model Equationsmentioning

confidence: 99%

Computational Simulation of a Hot Filament Chemical Vapor Deposition Process for Depositing SRO Films

Martínez

Luna-López

Sies

et al. 2021

AMR

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In the present report, a two dimensional (2D) model was developed to describe the fluid dynamics, heat and mass transfer of a Chemical Vapor Deposition activated by a Hot Filament (HFCVD) reactor, as well as the chemical generation of the precursor species which are present in the growth of non-stoichiometric silicon rich oxide (SRO) films. The SRO is known for have excellent photo luminescent properties which are useful in optoelectronic applications. This material can be obtained by the HFCVD technique which offers important advantages such as the easily to obtain thin films with diverse structural, compositional and optical characteristics. During deposition is a priority to control key parameters as inlet flow, substrate temperature and pressure so it compels to know previous theoretical information about these parameters which can be obtained by computational simulation. Therefore, by means of commercial Computational Fluid Dynamics (CFD) were solved the continuity, momentum and energy equations in steady state. Also, a thermodynamic equilibrium study of the SiO2(s) + H2 (g) reaction was carried out with the Factsage software. The thermodynamic equilibrium results provide the main chemical species which are present during the deposit process of the SRO films. The 2D model was used to simulate the temperature and velocity distribution of the hydrogen in the deposit process. The theoretical calculated temperatures were compared with those obtained experimentally by thermocouple measurements. From the simulation results, the temperature and gas velocity profiles were obtained at different hydrogen flow levels (50, 75, 100 sccm) and temperature source-substrate distances (5, 6 and 7mm) for a 50 sccm level. SEM micrographs and profilometry measurements disclose that the outlet configuration affects substantially both the thickness and surface uniformity of the SRO films. This parameter was modified to obtain a better quality (thickness and uniformity) and a large deposit area.

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Intra‐uterine contraception and the risk of endometrial cancer

Castellsagué

Dubrow

1993

Intl Journal of Cancer

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Despite the increasing world-wide popularity of contraceptive intra-uterine devices (IUDs), their potential long-term effects on the risk of developing endometrial carcinoma have been poorly studied. This paper reports on the relationship between intra-uterine contraception and endometrial cancer by analyzing epidemiological data from a large, multicenter, population-based, case-control study of epithelial endometrial cancer. Cases were 437 women, 20 to 54 years of age, with histologically confirmed epithelial endometrial cancer ascertained through 6 population-based cancer registries in the United States. Controls were 3200 women selected at random from the populations of these areas. The age- and parity-adjusted odds ratio (OR) for the association between ever having used intra-uterine contraception and endometrial cancer was 0.51 (95% confidence interval (CI) 0.3-0.8). Although the protective effect increased with duration of use, a dose-response relationship among users was not statistically demonstrable. The association did not vary significantly with age at first or last IUD use or with time elapsed since first or last IUD use. Years of education significantly modified the effect of intra-uterine contraception. Thus, intra-uterine contraception appeared to be strongly protective for women with at least 13 years of education (OR = 0.29, 95% CI, 0.15-0.6). It is proposed that intra-uterine contraception exerts its protective effect through local structural and biochemical changes in the endometrium that may alter endometrial sensitivity and response to circulating estrogen and progesterone.

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Ultrastructural Changes in Human Endometrium with Copper and Nonmedicated Iuds in Utero

Cited by 19 publications

References 9 publications

Computational modelling of a competitive immunoassay in lateral flow diagnostic devices

Computational modelling of a competitive immunoassay in lateral flow diagnostic devices

Computational Simulation of a Hot Filament Chemical Vapor Deposition Process for Depositing SRO Films

Intra‐uterine contraception and the risk of endometrial cancer

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