In this paper, we prove that any polygon P in R^2 containing a fixed smooth, strictly convex and origin-symmetric body Γ whose boundary is real analytic in its interior, can be determined by its Γ-section functions ...In this paper, we prove that any polygon P in R^2 containing a fixed smooth, strictly convex and origin-symmetric body Γ whose boundary is real analytic in its interior, can be determined by its Γ-section functions among the polygons.展开更多
In the past decades, terahertz technology has a great development and steady improvement, which has kept discovering and developing a series of potential applications in terahertz sensing, imaging, spectroscopy, secur...In the past decades, terahertz technology has a great development and steady improvement, which has kept discovering and developing a series of potential applications in terahertz sensing, imaging, spectroscopy, security, and communication. After the recent technical breakthroughs in reliable sources and sensitive detectors, terahertz functional devices, such as waveguides, switches, filters, splitters, isolators, modulators and sensors, are indispensable for the construction of compact application systems and have become a worldwide supreme issue in research.展开更多
This paper is an effort to extract the structure function, the EMC ratio, and the lepton scattering cross section in the convolution nuclear theory framework for 4He and 12C nuclei. We suppose that, in conventional ap...This paper is an effort to extract the structure function, the EMC ratio, and the lepton scattering cross section in the convolution nuclear theory framework for 4He and 12C nuclei. We suppose that, in conventional approach, based on harmonic oscillator model, one could consider for a nucleus shell different hw?parameters which are associated with the square root of the mean radius of the nucleus shells. We use GRV free nucleon structure function, which has good agreement with the proton and neutron structure function, extracted from experimental results. In addition, the lepton scattering cross sections of 4He and 12C nuclei are calculated in energy higher than 1 GeV. The extracted results show good agreement with experimental data.展开更多
Objective: To evaluate the effect of chewing sugar-free gum on gastrointestinal function recovery after cesarean section. Methods: Randomized controlled trials comparing the use of chewing gum in postoperative recover...Objective: To evaluate the effect of chewing sugar-free gum on gastrointestinal function recovery after cesarean section. Methods: Randomized controlled trials comparing the use of chewing gum in postoperative recovery with a control group were retrieved from the databases including Pubmed, Cochrane Library, Science Direct, Web of Science, CBM, CNKI, Wanfang and VIP, et al. After screening literatures, evaluating the quality of studies, extracting data, the RevMan5.3 software was used for data analysis. Results: A total of 13 RCTs including 2233 patients were analyzed in the study. The results showed that chewing gum after cesarean delivery can effectively shorten the recovery time of bowel sounds, passage of flatus and first defecation (all P Conclusion: Chewing sugar-free gum after cesarean section can promote the early recovery of gastrointestinal function, but the side effects of chewing gum are still unclear, which needs more clinical, large sample and high-quality studies to further verify.展开更多
Introduction: Sexual function is undoubtedly an important dimension of adult life. Due to all the conflicting results with regard to sexual function after the normal vaginal delivery (NVD) or the Cesarean Section (CS)...Introduction: Sexual function is undoubtedly an important dimension of adult life. Due to all the conflicting results with regard to sexual function after the normal vaginal delivery (NVD) or the Cesarean Section (CS), in the present study, we aimed to compare the sexual function in women pre-pregnancy and postpartum and also after the NVD and CS. Materials and Methods: In this cohort study, two groups of healthy women, with antenatal normal pregnancies, who underwent NVD (n = 90) and CS (n = 113), were prospectively studied. The sexual function of the participants was assessed through a Female Sexual Function Index (FSFI) questionnaire in two stages: once before pregnancy and then within 3 to 6 months after delivery, which lasted from June 2011 to September 2012. The data were analyzed by descriptive and inferential statistics. Data were analyzed using chi-square test, Mann-Whitney test, and T Test. Results: Based on the data gathered from 206 women who completed the FSFI questionnaire in two stages, the mean (±SD) self-reported timing of the resumption of sexual activity was 8.9 ± 1.3. There was no significant statistical difference found between the two groups by timing of the resumption of sexual activity in NVD and CS groups. There was also no statistically significant difference found in the overall sexual function scores between the two groups (NVD vs. CS). The average score for female sexual function in desire, arousal, orgasm, and satisfaction within 3 to 6 months after delivery was significantly lower than that of their pre-pregnancy period (p < 0.004). The mean coitus in postpartum period was 1.84 ± 1.20 per week. Conclusion: Based on the findings of this study, there was no significant relationship between the mode of delivery and changes in sexual function. Therefore, it can be claimed that CS is not preferred to NVD with regard to preserving normal sexual functioning.展开更多
目的探究剖宫产瘢痕妊娠孕妇清宫术大出血的影响因素,并进行风险评估。方法纳入2021年3月至2023年3月在温州医科大学附属第一医院收治的98例接受清宫术治疗的剖宫产瘢痕妊娠孕妇,根据术中出血量分组:大出血组(出血量≥400 mL,28例),对照...目的探究剖宫产瘢痕妊娠孕妇清宫术大出血的影响因素,并进行风险评估。方法纳入2021年3月至2023年3月在温州医科大学附属第一医院收治的98例接受清宫术治疗的剖宫产瘢痕妊娠孕妇,根据术中出血量分组:大出血组(出血量≥400 mL,28例),对照组(出血量≤400 m L,70例),比较组间临床指标差异,探究影响患者术中大出血发生的影响因素,并建立预测模型,探究该模型对患者发生大出血的预测效能。结果剖宫产次数、病灶绒毛膜距浆膜层最近距离、丛密绒毛膜厚度、病灶长径、血流分级、病灶突入切口的平均径均会影响术中大出血的发生,据此建立预测模型,该预测模型预测患者术中大出血发生的曲线下面积(area under the curve,AUC)值为0.901,95%CI为0.805~0.997,敏感度为0.917,特异度为0.810(P<0.05)。结论接受清宫术治疗的剖宫产瘢痕妊娠孕妇术中大出血发生与其剖宫产次数、病灶绒毛膜距浆膜层最近距离、丛密绒毛膜厚度、病灶突入切口的平均径、病灶长径、血流分级存在一定联系,基于此构建的模型具有较好的预测价值。展开更多
基金Project supported by the Youth Science Foundation of Shanghai Municipal Commission of Education （Grant No.214511）, and in part by the Research Grants Council of the Hong Kong SAR, China （Grant No.HKU7016/07P）
文摘In this paper, we prove that any polygon P in R^2 containing a fixed smooth, strictly convex and origin-symmetric body Γ whose boundary is real analytic in its interior, can be determined by its Γ-section functions among the polygons.
文摘In the past decades, terahertz technology has a great development and steady improvement, which has kept discovering and developing a series of potential applications in terahertz sensing, imaging, spectroscopy, security, and communication. After the recent technical breakthroughs in reliable sources and sensitive detectors, terahertz functional devices, such as waveguides, switches, filters, splitters, isolators, modulators and sensors, are indispensable for the construction of compact application systems and have become a worldwide supreme issue in research.
文摘This paper is an effort to extract the structure function, the EMC ratio, and the lepton scattering cross section in the convolution nuclear theory framework for 4He and 12C nuclei. We suppose that, in conventional approach, based on harmonic oscillator model, one could consider for a nucleus shell different hw?parameters which are associated with the square root of the mean radius of the nucleus shells. We use GRV free nucleon structure function, which has good agreement with the proton and neutron structure function, extracted from experimental results. In addition, the lepton scattering cross sections of 4He and 12C nuclei are calculated in energy higher than 1 GeV. The extracted results show good agreement with experimental data.
文摘Objective: To evaluate the effect of chewing sugar-free gum on gastrointestinal function recovery after cesarean section. Methods: Randomized controlled trials comparing the use of chewing gum in postoperative recovery with a control group were retrieved from the databases including Pubmed, Cochrane Library, Science Direct, Web of Science, CBM, CNKI, Wanfang and VIP, et al. After screening literatures, evaluating the quality of studies, extracting data, the RevMan5.3 software was used for data analysis. Results: A total of 13 RCTs including 2233 patients were analyzed in the study. The results showed that chewing gum after cesarean delivery can effectively shorten the recovery time of bowel sounds, passage of flatus and first defecation (all P Conclusion: Chewing sugar-free gum after cesarean section can promote the early recovery of gastrointestinal function, but the side effects of chewing gum are still unclear, which needs more clinical, large sample and high-quality studies to further verify.
文摘Introduction: Sexual function is undoubtedly an important dimension of adult life. Due to all the conflicting results with regard to sexual function after the normal vaginal delivery (NVD) or the Cesarean Section (CS), in the present study, we aimed to compare the sexual function in women pre-pregnancy and postpartum and also after the NVD and CS. Materials and Methods: In this cohort study, two groups of healthy women, with antenatal normal pregnancies, who underwent NVD (n = 90) and CS (n = 113), were prospectively studied. The sexual function of the participants was assessed through a Female Sexual Function Index (FSFI) questionnaire in two stages: once before pregnancy and then within 3 to 6 months after delivery, which lasted from June 2011 to September 2012. The data were analyzed by descriptive and inferential statistics. Data were analyzed using chi-square test, Mann-Whitney test, and T Test. Results: Based on the data gathered from 206 women who completed the FSFI questionnaire in two stages, the mean (±SD) self-reported timing of the resumption of sexual activity was 8.9 ± 1.3. There was no significant statistical difference found between the two groups by timing of the resumption of sexual activity in NVD and CS groups. There was also no statistically significant difference found in the overall sexual function scores between the two groups (NVD vs. CS). The average score for female sexual function in desire, arousal, orgasm, and satisfaction within 3 to 6 months after delivery was significantly lower than that of their pre-pregnancy period (p < 0.004). The mean coitus in postpartum period was 1.84 ± 1.20 per week. Conclusion: Based on the findings of this study, there was no significant relationship between the mode of delivery and changes in sexual function. Therefore, it can be claimed that CS is not preferred to NVD with regard to preserving normal sexual functioning.
文摘目的探究剖宫产瘢痕妊娠孕妇清宫术大出血的影响因素,并进行风险评估。方法纳入2021年3月至2023年3月在温州医科大学附属第一医院收治的98例接受清宫术治疗的剖宫产瘢痕妊娠孕妇,根据术中出血量分组:大出血组(出血量≥400 mL,28例),对照组(出血量≤400 m L,70例),比较组间临床指标差异,探究影响患者术中大出血发生的影响因素,并建立预测模型,探究该模型对患者发生大出血的预测效能。结果剖宫产次数、病灶绒毛膜距浆膜层最近距离、丛密绒毛膜厚度、病灶长径、血流分级、病灶突入切口的平均径均会影响术中大出血的发生,据此建立预测模型,该预测模型预测患者术中大出血发生的曲线下面积(area under the curve,AUC)值为0.901,95%CI为0.805~0.997,敏感度为0.917,特异度为0.810(P<0.05)。结论接受清宫术治疗的剖宫产瘢痕妊娠孕妇术中大出血发生与其剖宫产次数、病灶绒毛膜距浆膜层最近距离、丛密绒毛膜厚度、病灶突入切口的平均径、病灶长径、血流分级存在一定联系,基于此构建的模型具有较好的预测价值。
