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Littérature scientifique sur le sujet « The second stage of labor simulation »

Auteur : Grafiati

Publié le 14 décembre 2024

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Articles de revues sur le sujet "The second stage of labor simulation"

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Chronis, Konstantinos, Alexandros Xanthopoulos, and Dimitrios E. Koulouriotis. "Simulation Modeling and Analysis of a Door Industry." International Journal of Operations Research and Information Systems 12, no. 1 (2021): 43–57. http://dx.doi.org/10.4018/ijoris.2021010104.

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Ιn this paper, the authors study the production line of a door industry. The first stage of this research consists of the detailed documentation with flow charts and systematization of all production processes, all product types, as well as all stages of production and equipment. The standard production times were calculated for each workstation, together with the relevant workforce requirements. In the second stage of this research, a discrete event simulation model of the factory was developed to assist in the production planning decision-making. The simulation model was verified using actual production data relating to 19 customer orders for a total of 1,281 doors. Four simulation experiments were executed, where the effect of alternative shifts on the manufacturing line's efficiency was investigated. The performance metrics of total production, mean daily production, and mean labor cost per product were considered. This experimental trial resulted in the identification of the shift configuration that achieves increased productivity while maintaining relatively low labor costs.

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Viktorov, V. V., R. F. Magafurov, R. R. Gafurova, and L. R. Kudayarova. "Assessment of the Development of Skills in the Provision of Emergency Medical Care by Students of the Pediatric Faculty at the Stages of Preparation for the Primary Accreditation of a Specialist." Virtual Technologies in Medicine 1, no. 3 (2021): 139–40. http://dx.doi.org/10.46594/2687-0037_2021_3_1337.

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An analysis of the data of 100 assessment checklists of the University students at the stages of preparation for primary accreditation in the specialty "Pediatrics" — the station "Emergency Medical Aid", which was carried out in practical classes within the discipline "Cycle of simulation training", is presented. The data on mistakes made by the students when working at the station are given, which must be paid attention to in order to successfully pass the second stage of accreditation and master professional competencies that correspond to the labor functions of a district pediatrician.

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Xuan, Rongrong, Mingshuwen Yang, Yajie Gao, et al. "A Simulation Analysis of Maternal Pelvic Floor Muscle." International Journal of Environmental Research and Public Health 18, no. 20 (2021): 10821. http://dx.doi.org/10.3390/ijerph182010821.

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Pelvic floor disorder (PFD) is a common disease affecting the quality of life of middle-aged and elderly women. Pelvic floor muscle (PFM) damage is related to delivery mode, fetal size, and parity. Spontaneous vaginal delivery causes especially great damage to PFM. The purpose of this study was to summarize the characteristics of PFM action during the second stage of labor by collecting female pelvic MRI (magnetic resonance imaging) data and, further, to try to investigate the potential pathogenetic mechanism of PFD. A three-dimensional model was established to study the influence factors and characteristics of PFM strength. In the second stage of labor, the mechanical responses, possible damage, and the key parts of postpartum lesions of PFM due to the different fetal biparietal diameter (BPD) sizes were analyzed by finite element simulations. The research results showed that the peak stress and strain of PFM appeared at one-half of the delivery period and at the attachment point of the pubococcygeus to the skeleton. In addition, during the simulation process, the pubococcygeus was stretched by about 1.2 times and the levator ani muscle was stretched by more than two-fold. There was also greater stress and strain in the middle area of the levator ani muscle and pubococcygeus. According to the statistics, either being too young or in old maternal age will increase the probability of postpartum PFM injury. During delivery, the entire PFM underwent the huge deformation, in which the levator ani muscle and the pubococcygeus were seriously stretched and the attachment point between the pubococcygeus and the skeleton were the places with the highest probability of postpartum lesions.

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Kaganova, M. A., N. V. Spiridonova, I. A. Bordovskiy, and V. Yu Soloviev. "Complications in the Second Stage of Labor With Breech Presentation, Working Out the Algorithm of Actions Within the Framework of Simulation Training." Virtual Technologies in Medicine 1, no. 3 (2021): 118–19. http://dx.doi.org/10.46594/2687-0037_2021_2_1314.

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Chen, Jia, Yujuan Yuan, and Yadong Wang. "Manipulative Reduction for Abnormal Uterine Inclination in Vaginal Delivery." Computational and Mathematical Methods in Medicine 2022 (January 30, 2022): 1–5. http://dx.doi.org/10.1155/2022/4765447.

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Objective. To investigate the manipulative reduction in abnormal uterine inclination in vaginal delivery. Methods. With the independently developed uterine inclination surveyor, 40 primiparas with abnormal uterine inclination were randomly divided into two groups: treatment group (Group A, 20 cases) and control group (Group B, 20 cases). The general condition of the primipara, the labor stages, the changes in uterine inclination after treatment, postpartum hemorrhage at 2 hours, and the general condition of fetuses were observed to study the therapeutic value of manual reduction in abnormal uterine inclination. Result. In the control group, one uterine inclination was not corrected with the change in labor process, and the pregnancy was terminated due to stagnation of the active phase. In the first stage of labor, the time spent in the treatment group ( 393.4 ± 31.3 mins) was significantly lower than that in the control group ( 440.7 ± 34.9 mins) ( P = 0.001 ). Compared with the control group ( 49.8 ± 6.5 mins), the treatment group ( 42.6 ± 7.2 mins) also exhibited a significantly shortened second stage of labor ( P = 0.02 ). Sixteen cases (16/20) in the treatment group returned to normal after manual reduction, and 9 cases (9/20) in the control group returned to normal with the progression of natural labor. Manual reduction could be used as an option to treat abnormal uterine inclination ( P = 0.01 ). There was no significant difference in the third stage of labor ( P = 0.2 ), 2-hour postpartum hemorrhage ( P = 0.35 ), Apgar score ( P = 0.64 ), or body weight ( P = 0.76 ) between the two groups. Conclusion. Manual reduction in the treatment of abnormal uterine inclination has obvious effects, shortens the birth process, and is safe for the fetus.

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Lien, K. C., J. A. Ashton-Miller, and J. O. L. Delancey. "Poster 9: Effect of Voluntary Push Timing on the Duration of the Second Stage of Labor: Results from a Computer Simulation." Journal of Pelvic Medicine and Surgery 11, Supplement 1 (2005): S29—S30. http://dx.doi.org/10.1097/01.spv.0000178865.41836.b9.

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Abdul Fatah, Ireana Yusra, Nor Izzah Hazirah Abdul Hadi, and Razwan Rohimi. "Design Modification and Structure Simulation Analysis of Tapioca Peeling Machine." Malaysian Journal of Applied Sciences 7, no. 2 (2022): 83–92. http://dx.doi.org/10.37231/myjas.2022.7.2.339.

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This project works on the design of a tapioca peeling machine for peeling freshly harvested tapioca tubers with the capacity of peeling tubers of different weight and diameter sizes. The need to mitigate the low output, drudgery, high labor costs and losses associated with manual peeling called for the design of the machine to improve the agricultural yield of the crop. The objectives of the research were to study the existing tapioca peeling technologies, to select and size the machine components, to develop the layout of the machine and to carry out the cost analysis of the tapioca peeling machine. To solve the problem, the innovation was formulated to peel tapioca skin with two stage of peeling (the first layer and the second layer) to increase productivity. From simulation of eco-auto-tap , the design of machine can work succesfully, and be a great improvement in the tapioca machine

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Ballit, Abbass, Morgane Ferrandini, and Tien-Tuan Dao. "Novel hybrid rigid-deformable fetal modeling for simulating the vaginal delivery within the second stage of labor." Computer Methods and Programs in Biomedicine 250 (June 2024): 108168. http://dx.doi.org/10.1016/j.cmpb.2024.108168.

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Dykas, Paweł, and Tomasz Misiak. "The Neoclassical Growth Model with Sinusoidal Investments." Przegląd Statystyczny 63, no. 1 (2016): 49–66. http://dx.doi.org/10.5604/01.3001.0014.1148.

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The aim of the present study is an attempt to extend the neoclassical model of economic growth of Solow by repealing the assumption of fixed investment and introducing an investment function dependent sinusoidally on the time. The adoption of the sinusoidal function of investment is substantiated by the fact that investments (like manufacturing) are largely depended on the economic situation, which is subject to periodic fluctuations. The authors introduce the theoretical considerations on the notion of cyclical and smooth path of temporal capital-labour ratio and labour productivity. When using these tools the authors identified, by calculating the relative deviations of the mentioned path, the impact of investment function dependent sinusoidally on the time.In the empirical analysis the authors conducted the calibration of parameters used by the research model. Based on panel data for the EU15 between the years 2000–2013 the α parameter (production flexibility in relation to capital) was estimated first at 0,349. That value was adopted to further numerical analysis. In the second stage the simulations of numerical, calibrated deviations of temporal cyclical path of capital-labour ratio (labor productivity) from the smooth path of capital-labour ratio (labor productivity) was performed. When conducting numerical analysis the impact of different investment rates (15%, 20%, 25%) and periods of cyclical fluctuations (4 or 10 years) have been considered in relation to the formation of these deviations. Numerical analysis for the economies of the EU15 group was made for one hundred time series.

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Barros, J. G., A. G. Costa, M. Carvalho Afonso, N. Clode, and L. M. Graça. "OP15.07: The effect of simulation training in clinical determination of fetal head position during the second stage of labour." Ultrasound in Obstetrics & Gynecology 48, S1 (2016): 99. http://dx.doi.org/10.1002/uog.16300.

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