We carry out experimental measurement of the scintillation index of a partially coherent beam-carrying vortex phase (i.e., Gaussian-Schell model vortex beam) propagating through thermally induced turbulence. It is demonstrated that a Gaussian-Schell model vortex beam has appreciably smaller scintillation than a Gaussian-Schell model beam, which will be useful in free-space optical communication.
Underground logistics system (ULS) tends to alleviate traffic congestion, increase city logistics efficiency, mitigate the negative effects of traditional logistics processes, and improve the sustainability of urban areas. However, the relatively high cost and risk of underground construction are serious obstacles to implementing ULS. Integrating ULS into modern metro system (M-ULS) is considered to be feasible and efficient to solve this problem. is paper aims at developing a metro system-based ULS network planning method. First, an evaluation model of underground freight volume was proposed considering service capacity, freight flow, and regional accessibility. Second, a set of mixed integer programming model was developed to solve the problem of optimal nodes' location-allocation (LAP) in the network. en, a hybrid algorithm was designed with a combination of E-TOPSIS, exact algorithm, and heuristic algorithm. Finally, two lines of Nanjing Metro were selected as a case to validate the proposed planning method. e results showed that the new system can significantly reduce the construction costs of ULS and alleviate traffic congestion. Moreover, the potential of metro stations and underground tunnels can be fully exploited to achieve higher logistics benefits.
Aim
To evaluate the effect of a ketogenic diet (KD) in women with polycystic ovary syndrome (PCOS) and liver dysfunction who were obese.
Methods
Women with PCOS and liver dysfunction who were obese were enrolled in this prospective, open‐label, parallel‐group, controlled pilot trial, and randomly received KD (KD group) or conventional pharmacological treatment (Essentiale plus Yasmin, control group) in a 1:1 ratio for 12 weeks. The primary endpoint was the liver function markers. Secondary endpoints included the menstrual cycle, anthropometric characteristics, body composition, hormonal levels, and metabolic biomarkers.
Results
Of the 20 eligible participants enrolled, 18 participants completed the study. The KD group reported a significant reduction in anthropometric characteristics and body composition from baseline to week 12 (all p < 0.05). In addition, there were significant reductions in menstrual cycle, plasma estradiol, and progesterone levels in two groups (all p < 0.05), but no significant between‐group difference was observed. KD significantly reduced the liver function markers compared with control group (p < 0.05). The signs of fatty liver disappeared in six out of seven fatty liver participants in KD group after 12 weeks of intervention, while only one of 10 fatty liver participants in control group disappeared.
Conclusions
In addition to improving the menstrual cycle, KD had the additional benefits of reducing blood glucose and body weight, improving liver function, and treating fatty liver compared to traditional pharmacological treatment in women with PCOS and liver dysfunction who were obese.
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