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报道6种江苏省鸟类分布新纪录，分别为蓝鹀（Emberiza siemsseni）、岩燕（Ptyonoprogne rupestris）、斑尾鹃鸠（Macropygia unchall）、穗䳭（Oenanthe oenanthe）、褐胸鹟（Muscicapa muttui）以及长尾山椒鸟（Pericrocotus ethologus）。考虑原有分布区、记录时间和居留型，推测蓝鹀和褐胸鹟为江苏罕见旅鸟，岩燕、斑尾鹃鸠、穗䳭和长尾山椒鸟为江苏迷鸟，并对近年来因分布区北扩而出现在江苏南部的鸟类进行讨论。观测记录为研究上述鸟类的分布现状和扩散规律提供基础数据。

研究了基于OFDM（正交频分复用）的电力线与可见光融合通信系统中的信道估计技术,通过建立电力线与可见光信道模型,研究了梳状和块状导频结构下的LS（最小二乘）与SVD（奇异值分解）两种估计准则,以及线性插值与基于DFT（离散傅里叶变换）的插值两种内插方法,通过比较发现,块状导频下的SVD结合线性插值是性能较佳的信道估计算法,并且该算法对导频间隔不敏感。

【目的】探讨不同程度近视患者黄斑中心凹下脉络膜厚度与等效球镜度、眼轴长度、眼压和血压的关系。【方法】采用横断面研究收集90例近视患者，其中低、中、高度近视各30例，使用相干光断层扫描仪的深度增强成像模式获得黄斑中心凹下脉络膜厚度、客观验光加主觉验光获得等效球镜度、非接触式眼光学生物测量仪测量眼轴长度、非接触式眼压计测量眼压、汞柱式血压计测量收缩压和舒张压，取所有受试者的右眼数据进行单因素方差分析、线性相关和回归分析。【结果】低、中、高度近视患者黄斑中心凹下脉络膜厚度（μm）分别为（295 ± 75）、（223 ± 66）、（176 ± 50），三组患者间等效球镜度、眼轴长度、黄斑中心凹下脉络膜厚度的差异均具有统计学意义（P < 0.05），眼压、收缩压和舒张压的差异均无统计学意义（P > 0.05）。高度近视组脉络膜厚度值与等效球镜度、眼轴、眼压、收缩压、舒张压均呈负相关（r = -0.721，-0.481，-0.415，-0.571，-0.598，P 皆< 0.05）；中度近视组脉络膜厚度值与等效球镜度、眼轴、眼压呈负相关（r = -0.686，-0.551，-0.460，P 皆< 0.05），与收缩压及舒张压均不相关（P > 0.05）；低度近视组脉络膜厚度值与等效球镜度、眼轴、眼压、收缩压及舒张压均呈不相关（P > 0.05）。高度近视组中等效球镜度每增加-1 D脉络膜厚度减少24 μm，眼轴每增加1 mm脉络膜厚度减少37 μm。中度近视组中等效球镜度每增加-1 D脉络膜厚度减少16 μm，眼轴每增加1 mm脉络膜厚度减少21 μm。【结论】中度及高度近视患者的黄斑中心凹下脉络膜厚度随等效球镜度、眼轴、眼压的增加而变薄；血压是影响高度近视患者的黄斑中心凹下脉络膜厚度的重要影响因素之一。

研究了双脉冲泵浦情况下,在准相位匹配（QPM）的周期性极化反转的铌酸锂光波导（PPLN）中,基于级联二阶非线性效应———和频与差频效应（SFG+DFG）的全光波长转换。推导了描述SFG+DFG波长转换的理论模型。通过数值模拟,研究了波长转换过程,观察到脉冲传播过程中出现了走离效应与脉冲展宽。研究了器件长度、信号波长、脉宽等参数对波长转换效率的影响。

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Objective To investigate the influencing factors on the occurrence of chemo-resistance after postoperative chemotherapy in ovarian cancer patients, and construct a prediction model and evaluate the model efficacy. Methods The clinical data of 407 ovarian cancer patients who underwent tumor cytoreduction and chemotherapy were collected. At the endpoint of follow-up, patients were divided into the recurrence group (n=363) and the non-recurrence group (n=44). Patients in the recurrence group were re-divided into the resistant group (n=59) and the sensitive group (n=304) according to the chemotherapy resistance. Variables were screened using univariate analysis and Lasso regression. Logistic model was established. R software was used to build a nomogram and evaluate it. Results Compared with the non-recurrence group, the age of the recurrence group was lower, and the proportion of low differentiation and the proportion of FIGO stage III-IV were higher (P＜0.05). Compared with the sensitive group, in the resistant group, lymph node enlargement, non-serous pathological type, the proportion of FIGO stage III-IV, positive rate of immunohistochemical recombinant proteins Ki-67, protein 53 (P53), vascular endothelial growth factor (VEGF) and nephroblastoma gene 1 (WT-1) were higher. The change rate of glycan antigen 125 (CA125) before and after surgery, the change rates of Rome index (ROMA) (premenopausal) before and after chemotherapy and the positive rate of immunohistochemical protein 16 (P16) were lower (P＜0.05). The eight variables screened by Lasso regression were used as independent variables for Logistic regression. Results showed that there were enlarged lymph nodes in preoperative CT imaging, the pathological type was non-serous, the FIGO stages were III-IV, and immunohistochemistry results of WT1 and VEGF were positive. P16 negative was an independent risk factor for chemo-resistance in ovarian cancer patients. Accordingly, the area under the receiver operating characteristic curve of the nomogram model established was 0.837 (0.783-0.880), and the result of Hosmer-Lemeshow test indicated a good model fit. The calibration curve and the clinical decision curve (DCA) suggested a high calibration and clinical use of the model. Conclusion We have successfully constructed a Logistic model of chemotherapy resistance in ovarian cancer based on clinical data, and the nomogram prediction model can effectively assess the risk of chemo-resistance in ovarian cancer. [ABSTRACT FROM AUTHOR]

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Objective To investigate the application efficacy and optimal dosage of dexmedetomidine preconditioning in modified electroconvulsive therapy (MECT) and to explore its optimal dose. Methods Two hundred and fifty-two patients who were to undergo MECT were selected and were randomly divided into group D1, group D2, group D3, group D4, group D5 and control group, respectively, with 42 cases in each. Ten min before anaesthesia induction, 0. 2, 0. 4, 0. 6, 0. 8 and 1. 0 µg/kg dexmedetomidine hydrochloride was intravenously pumped into the D1, D2, D3, D4 and D5 groups, respectively, and the control group was intravenously pumped with an equal volume of normal saline 30 mL; the patients were treated by a MECT therapeutic instrument. Heart rate (HR) and mean arterial pressure (MAP) were recorded in each group at the immediate moment of dexmedetomidine pretreatment (T1), 5 min after pretreatment (T2), 10 min after pretreatment (T3), 15 min after pretreatment (T4), 20 min after pretreatment (T5), 25 min after pretreatment (T6), and 30 min after pretreatment (T7), respectively; and the duration of seizure, the dose of propofol used during MECT, the recovery time of spontaneous respiration, the awakening time and the occurrence of adverse reactions were compared between the groups. Results Compared with the control group at the same time point, HR was reduced in the group D1 at T4, and in the groups D2, D3, D4, and D5 at T2 to T7; and MAP was reduced in the group D2 at T4 to T7, and in the groups D3, D4, and D5 at T2 to T7 (all P<0. 05) . Compared with the same group at T1, HR was reduced in the groups D4 and D5 at T7; MAP was reduced in the groups D3, D4 and D5 at T7 (all P<0. 05) . There was no statistically significant difference in seizure duration among groups (all P>0. 05) ; the dosage of propofol was less in the groups D2, D3, D4, and D5 than in the control group; the recovery time of spontaneous respiration was longer in the groups D4 and D5 than in the control group; the time of awakening was longer in the groups D3, D4, and D5 than in the control group; and the incidence rate of adverse reactions was lower in the groups D1, D2, D3, D4, and D5 than in the control group (all P<0. 05) . Comclusion Dexmedetomidine pretreatment can effectively reduce the haemodynamic fluctuation of MECT patients, reduce the dose of anaesthesia drugs, improve the quality of anaesthesia recovery, and has better safety; in MECT, pretreatment with 0. 4 µg/kg dexmedetomidine has the best effect. [ABSTRACT FROM AUTHOR]

Objective To investigate the value of the ultrasound technique score and the Braden scale in jointly predicting the risk of pressure injuries in patients with severe multiple injuries. Methods According to the inclusion and exclusion criteria, 216 patients who were hospitalized in the Affiliated Central Hospital of Chongqing University from December 2022 to December 2023 were enrolled. The Braden scale and body sur- face ultrasound test results of each patient were collected, and the subject operating characteristic (ROC) curves of the Braden scale, the ultrasound score. and the Braden scale combined with the ultrasound score were counted respectively, and the area under the curve (AUC), sensitivity, specificity, and other predictive indexes were calculated, so as to analyze and compare the clinical value of the prediction of the combined means. Results The incidence of pressure injuries in patients with severe multiple injuries was 24.5%. The AUC of the Braden scale for the risk of pressure injuries in patients with severe multiple injuries was 0.602[95% confidence interval (95% CI) 0.507-0.696, P=0.026]. The sensitivity for diagnosing pressure injuries was 0.868 and the specificity was 0. 184 when using a Braden score of 12 as the cut-off point. The AUC for the ultrasound technique score was 0.898 (95%CI 0.852-0.944, P<0.001). The sensitivity for diagnosing pressure injuries was 0. 962 and the specificity was 0.767 when using an ultrasound score of ≥ 1 as the cut-off point. The AUC for the combination of the Braden score and the ultrasound technique for the risk of developing pressure injuries in patients with severe multiple injuries was 0. 927 (95% CI 0.887 0.958, P < 0.000 1). The sensitivity was 0.975 and the specificity was 0.819 when Braden score 12 and ultrasound score 1 were used as cut-off points. Conclusion In patients with severe multiple injuries, the specificity of the Braden scale for pressure injuries prediction is poor, and the Braden score combined with the ultrasound technology is a more optimized means of assessing pressure injuries risk. [ABSTRACT FROM AUTHOR]

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[Objective] The aims of this study are to reveal the variation characteristics and future evolution trend of water surface evaporation in the Shule River Basin, to better understand the dynamic changes of water resources in the basin, so as to provide decision support for the planning and management of water resources utilization in the region. [Methods] Based on the monthly and yearly water surface evaporation data of four hydrology stations in Changmabao, Shuangtabao Reservoir, Dangcheng Bay and Danghe Reservoir from 1980 to 2020, linear dip rate, sliding t test, R/S analysis, BP neural network and other analysis methods were used to examine the characteristics of surface evaporation changes in the past 40 years, and the future evaporation and its change trend were predicted. [Results](1) The annual variation of water surface evaporation at all stations in the Shule River Basin showed a decreasing trend during 1980—2020, and the trend rate of each station was ranked as: Shuangtabao Reservoir Station(-187.10 mm/decade)>Danghe Reservoir Station(-178.20 mm/decade)>Changmabao Station(-33.00 mm/decade)>Dangchengwan Station(-30.00 mm/decade), among which the decrease trend of Shuangtabao Reservoir and Danghe Reservoir Station was very significant.(2) The water surface evaporation of Changmabao, Shuangtapao Reservoir and Danghe Reservoir Stations showed a decreasing trend in all seasons, while that of Dangchengwan Station showed an insignificant increasing trend in spring and a decreasing trend in other seasons.(3) The mutation years of Changmabao, Dangcheng Bay, Shuangtabao Reservoir and Danghe Reservoir were 2004, 2015, 2007 and 2007, respectively.(4) The uneven coefficient and concentration of evaporation on the surface of the basin showed a decreasing trend as a whole.(5) It is predicted that the evaporation of water surface will continue to show a downward trend in 2021—2026. [Conclusion] On the whole, the annual and seasonal water surface evaporation in the Shule River Basin shows a decreasing trend, and it also shows a decreasing trend in the future. [ABSTRACT FROM AUTHOR]

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In order to further understand the characteristics of the life history of the Sepia esculenta population in the coastal waters of Jiangsu, the feeding ecology and nutritional niche of the Sepia esculenta were studied by using the carbon and nitrogen stable isotope analysis method based on the samples collected in the coastal ports of Jiangsu. The results showed that there was no significant difference in δ13C and δ15N values between male and female populations of Sepia esculenta; There was a significant correlation between them; the nutritional niche width of male Sepia esculenta （SEAc=0.57‰2） was not significantly different from that of females （SEAc=0.63‰2）, and females were slightly larger than males, and both are highly overlapping （0.62）. Isotopic cluster analysis showed that Sepia esculenta individuals could be divided into three mantle length groups of 75-114 mm, 115-184 mm and 185-204 mm; The niche width of the 114 mm mantle length group was the smallest （SEAc=0.39‰2）; only the niche overlap rate between the 75-114 mm and 115-184 mm mantle length groups was moderate （0.34）, and the niche overlap rate among the other mantle length groups was low. According to the analysis, the change of δ13C value of Sepia esculenta was mainly affected by the isotope baseline value and the migration pattern of Sepia esculenta, while the change of δ15N value was mainly affected by the feeding effect of Sepia esculenta; the height of food resources and habitat utilization between female and male golden squid groups were highly similar; Sepia esculenta at different developmental stages had obvious differences in nutritional niche. [ABSTRACT FROM AUTHOR]