AIM： To evaluate the clinical pnd optical outcomes after clear corneal incision cataract surgery （ClCS） with three different incision sizes （1.8, 2.0 and 3.0 mm）. METHODS： Eyes of 150 patients with age-related c...AIM： To evaluate the clinical pnd optical outcomes after clear corneal incision cataract surgery （ClCS） with three different incision sizes （1.8, 2.0 and 3.0 mm）. METHODS： Eyes of 150 patients with age-related cataract scheduled for coaxial cataract surgery were randomized to three groups： 1.8, 2.0, or 3.0 mm CICS. Intraoperative data and postoperative outcomes including surgically induced astigmatism （SIA）, the corneal incision thickness, wavefront aberrations and modulation transfer function （MTF） of cornea were obtained. RESULTS： There were no significant differences among the three groups in demographic characteristics and intraoperative outcome. The 1.8 and 2.0 mm microincisions showed more satisfactory clinical outcomes than the 3.0 mm incision. The 1.8 mm incision showed significantly less SIA than the 2.0 mm incision until postoperative lmo （P〈0.05）, but the difference was only 0.14-0.18 D. Combined with less increased incision thickness only at postoperative ld （P=0.013）, the 1.8 mm incision presented better uncorrected distance visual acuity （UCDVA） than the 2.0 mm incision only at Id postoperatively （P=0.008）. For higher-order aberrations and other Zernike coefficients, there were no significant differences between the 1.8 mm group and 2.0 mm group （P 〉0.05）. CONCLUSION： Converting from 3.0 mm CICS to 1.8 or 2.0 mm CICS result in better clinical and optical outcomes. However, when incision is 1.8 mm, the benefits from further reduction in size compared with2.0 mm are limited. The necessity to reduce the incision size is to be deliberated.展开更多
In this paper,we prove an existence and uniqueness theorem for backward doubly stochastic differential equations under a new kind of stochastic non-Lipschitz condition which involves stochastic and timedependent condi...In this paper,we prove an existence and uniqueness theorem for backward doubly stochastic differential equations under a new kind of stochastic non-Lipschitz condition which involves stochastic and timedependent condition.As an application,we use the result to obtain the existence of stochastic viscosity solution for some nonlinear stochastic partial differential equations under stochastic non-Lipschitz conditions.展开更多
Liquid-liquid mixing,including homogeneous and heterogeneous mixing,widely exists in the chemical industry.How to quantitatively characterize the mixing performance is important for reactor assessment and development....Liquid-liquid mixing,including homogeneous and heterogeneous mixing,widely exists in the chemical industry.How to quantitatively characterize the mixing performance is important for reactor assessment and development.As a convenient and direct method for mixing characterization,the chemical probe method uses some special test reactions to characterize the mixing results.Here,the working principle and selection requirements of this method are introduced,and some common chemical probe systems for homogeneous and heterogeneous mixing processes are reviewed.The characteristics and applications of these systems are illustrated.Finally,the development of the new system is proposed.展开更多
Background： Mucocutaneous lesions are common features of primary Sjogren＇s syndrome （pSS）, but only a few studies have focused on them. To demonstrate the profile ofmucocutaneous lesions ofpSS and further explore ...Background： Mucocutaneous lesions are common features of primary Sjogren＇s syndrome （pSS）, but only a few studies have focused on them. To demonstrate the profile ofmucocutaneous lesions ofpSS and further explore their potential clinical significance, we perfermed a cross-sectional study on 874 patients. Methods： Demographic data, clinical manifestations, and laboratory results of 874 pSS patients were collected. Patients were divided into two groups according to the presence of mucocutaneous lesions. Differences in primary symptoms and systemic impairments between the two groups were analyzed. Results of laboratory tests were also compared alter excluding those who had taken corticosteroid from both groups. One-year follow-up was done, and occurrences of various new complications were compared. Results： Among the 874 pSS patients, 181 patients had mucocutaneous lesions, accounting for 20.7%. Multiple mucocutaneous manifestations were displayed, and the top four most common types of lesions were purpuric eruptions （39.8%）, urticaria （23.8%）, Raynaud＇s phenomenon （14.9%）, and angular stomatitis （9.9%）. Incidences of pulmonary interstitial fibrosis, pulmonary bullae, leukopenia, and anemia were significantly higher among patients with mucocutaneous lesions （P 〈 0.05）. Increase in lgG and decrease in C4 among patients with mucocutaneous lesions displayed statistical significance after excluding patients from both groups who had taken corticosteroid （P 〈 0.05）. Alter one-year follow-up, patients with mucocutaneous lesions presented a slightly higher incidence of new complications compared to those without. Conclusions： Mucocutaneous manifestations ofpSS patients were common and diverse. Patients with mucocutaneous manifestations had more systemic damages, higher level of IgG, and lower level of serum C4, suggesting a higher activity of the primary disease.展开更多
基金Supported by the Key Program of the National Natural Science Foundation of China(No.81130018)National Twelfth Five-Year Plan Foundation of China(No. 2012BAI08B01)+1 种基金Zhejiang Key Innovation Team Project of China(No.2009R50039)Zhejiang Key Laboratory Fund of China(No.2011E10006)
文摘AIM： To evaluate the clinical pnd optical outcomes after clear corneal incision cataract surgery （ClCS） with three different incision sizes （1.8, 2.0 and 3.0 mm）. METHODS： Eyes of 150 patients with age-related cataract scheduled for coaxial cataract surgery were randomized to three groups： 1.8, 2.0, or 3.0 mm CICS. Intraoperative data and postoperative outcomes including surgically induced astigmatism （SIA）, the corneal incision thickness, wavefront aberrations and modulation transfer function （MTF） of cornea were obtained. RESULTS： There were no significant differences among the three groups in demographic characteristics and intraoperative outcome. The 1.8 and 2.0 mm microincisions showed more satisfactory clinical outcomes than the 3.0 mm incision. The 1.8 mm incision showed significantly less SIA than the 2.0 mm incision until postoperative lmo （P〈0.05）, but the difference was only 0.14-0.18 D. Combined with less increased incision thickness only at postoperative ld （P=0.013）, the 1.8 mm incision presented better uncorrected distance visual acuity （UCDVA） than the 2.0 mm incision only at Id postoperatively （P=0.008）. For higher-order aberrations and other Zernike coefficients, there were no significant differences between the 1.8 mm group and 2.0 mm group （P 〉0.05）. CONCLUSION： Converting from 3.0 mm CICS to 1.8 or 2.0 mm CICS result in better clinical and optical outcomes. However, when incision is 1.8 mm, the benefits from further reduction in size compared with2.0 mm are limited. The necessity to reduce the incision size is to be deliberated.
基金supported by Beijing Natural Science Foundation(No.1222004)Yuyou Project of North University of Technology(No.207051360020XN140/007)Scientific Research Foundation of North University of Technology(No.110051360002)。
文摘In this paper,we prove an existence and uniqueness theorem for backward doubly stochastic differential equations under a new kind of stochastic non-Lipschitz condition which involves stochastic and timedependent condition.As an application,we use the result to obtain the existence of stochastic viscosity solution for some nonlinear stochastic partial differential equations under stochastic non-Lipschitz conditions.
基金supported by the National Key R&D Program of China(Grant No.2021YFC3001100).
文摘Liquid-liquid mixing,including homogeneous and heterogeneous mixing,widely exists in the chemical industry.How to quantitatively characterize the mixing performance is important for reactor assessment and development.As a convenient and direct method for mixing characterization,the chemical probe method uses some special test reactions to characterize the mixing results.Here,the working principle and selection requirements of this method are introduced,and some common chemical probe systems for homogeneous and heterogeneous mixing processes are reviewed.The characteristics and applications of these systems are illustrated.Finally,the development of the new system is proposed.
基金This study was supported by a grant from the National Natural Science Foundation of China （No. 81371731）.
文摘Background： Mucocutaneous lesions are common features of primary Sjogren＇s syndrome （pSS）, but only a few studies have focused on them. To demonstrate the profile ofmucocutaneous lesions ofpSS and further explore their potential clinical significance, we perfermed a cross-sectional study on 874 patients. Methods： Demographic data, clinical manifestations, and laboratory results of 874 pSS patients were collected. Patients were divided into two groups according to the presence of mucocutaneous lesions. Differences in primary symptoms and systemic impairments between the two groups were analyzed. Results of laboratory tests were also compared alter excluding those who had taken corticosteroid from both groups. One-year follow-up was done, and occurrences of various new complications were compared. Results： Among the 874 pSS patients, 181 patients had mucocutaneous lesions, accounting for 20.7%. Multiple mucocutaneous manifestations were displayed, and the top four most common types of lesions were purpuric eruptions （39.8%）, urticaria （23.8%）, Raynaud＇s phenomenon （14.9%）, and angular stomatitis （9.9%）. Incidences of pulmonary interstitial fibrosis, pulmonary bullae, leukopenia, and anemia were significantly higher among patients with mucocutaneous lesions （P 〈 0.05）. Increase in lgG and decrease in C4 among patients with mucocutaneous lesions displayed statistical significance after excluding patients from both groups who had taken corticosteroid （P 〈 0.05）. Alter one-year follow-up, patients with mucocutaneous lesions presented a slightly higher incidence of new complications compared to those without. Conclusions： Mucocutaneous manifestations ofpSS patients were common and diverse. Patients with mucocutaneous manifestations had more systemic damages, higher level of IgG, and lower level of serum C4, suggesting a higher activity of the primary disease.
