Publications by authors named "Songqing Yang"

Graphene has been widely used in photodetectors; however its photoresponsivity is limited due to the intrinsic low absorption of graphene. To enhance the graphene absorption, a waveguide structure with an extended interaction length and plasmonic resonance with light field enhancement are often employed. However, the operation bandwidth is narrowed when this happens.

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Background And Aims: It has been reported that Helicobacter pylori (HP) infection was more prevalent in infertile populations. HP infection could lead to decreased sperm parameters, and treating the HP infection could improve the quality of sperm. However, studies investigating the relationship between infertility and HP infection are still limited, and more evidence is required.

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Background: Anti-Müllerian hormone (AMH) is now considered the best serum biomarker of ovarian reserve, while basal sex hormones are classic markers used for assessing ovarian reserve. The interaction between AMH and sex hormones are complicated and not sufficiently addressed. In this study, we took diminished ovarian reserve (DOR) and polycystic ovarian syndrome (PCOS) as two extremes of ovarian reserve (deficient and excessive respectively) to investigate the role of AMH and sex hormones in follicular growth.

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Problem: The effect of thyroid autoimmunity (TAI) on the prevalence of recurrent miscarriage (RM) is highly debatable. No meta-analysis has been published in the past decade to investigate the impact of TAI on women with RM.

Method Of Study: Systemic literature search was conducted on PubMed, Embase, Cochrane, and Web of Science databases.

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Objective: This study aims to examine the impact of chronic intermittent hypoxia on hearts in patients with obstructive sleep apnea (OSA).

Methods: Two hundred twenty patients were divided into groups based on (1) severity of the disease, (2) years of disease history, and (3) with or without secondary hypertension. All subjects underwent blood pressure measurements, polysomnogram monitoring, and cardiac Doppler ultrasound examinations.

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Objective: To investigate the influence of left heart function in obstructive sleep apnea by CIH, and explore left heart function and blood pressures before or after CPAP.

Methods: 75 OSA were divided into two groups: 40 patients blood pressures were coincident with diagnostic standard of hypertension recording; 35 patients blood pressures were non-hypertension recording. The control group included 30.

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Objective: To investigate the effects of obstructive sleep apnea-hypopnea syndrome (OSAHS) upon cardiac structure and function of patients.

Methods: According to apnea hypopnea index, 75 OSAHS patients were divided into three groups: mild (n = 25), moderate (n = 25) and serious (n = 25); according to the course of disease, < 5 years (n = 22), 5-10 years (n = 26) and > 10 years (n = 27). The control group included 25 healthy adults.

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Objective: To differentiate diffuse liver cancer from portal cirrhosis by using ultrasonography.

Methods: We analyzed the sonographic images of 15 patients with diffuse liver cancer and 30 patients with portal cirrhosis.

Results: The patients with diffuse liver cancer showed enlarged liver and obvious echo of nodules.

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