The Beijing Swift(Apus apus pekinensis)is a typical cavity-nesting bird that often nests inside holes and crevices in old architectures.Direct observation of their breeding behaviour is challenging and their breeding ...The Beijing Swift(Apus apus pekinensis)is a typical cavity-nesting bird that often nests inside holes and crevices in old architectures.Direct observation of their breeding behaviour is challenging and their breeding ecology is thus poorly studied.In this study,we analysed light-level geolocation data collected from six Beijing Swifts for the first time.Our results showed that geolocators can make comprehensive inference of their incubation period and behaviour.As a cost-effective and non-invasive method,geolocators can not only facilitate discovering migration routes,but also can be widely applied in the study of avian reproductive behaviour,especially in cavity-nesting bird species.We further discussed the characteristics and merits of this method and compared with other conventional nest-monitoring methods in recording birds.展开更多
A novel frame shift and integral technique for the enhancement of low light level moving image sequence is introduced. According to the technique, motion parameters of target are measured by algorithm based on differe...A novel frame shift and integral technique for the enhancement of low light level moving image sequence is introduced. According to the technique, motion parameters of target are measured by algorithm based on difference processing. To obtain spatial relativity, images are shifted according to the motion parameters. As a result, the processing of integral and average can be applied to images that have been shifted. The technique of frame shift and integral that includes the algorithm of motion parameter determination is discussed, experiments with low light level moving image sequences are also described. The experiment results show the effectiveness and the robustness of the parameter determination algorithm, and the improvement in the signal-to-noise ratio （SNR） of low light level moving images.展开更多
目的研究双歧杆菌三联活菌辅助蓝光照射对新生儿黄疸的价值。方法选取南京市高淳人民医院于2022年5月—2023年7月收治的136例黄疸新生儿为研究对象,以随机数表法分为两组,各68例。对照组采用蓝光照射治疗,研究组在对照组基础上采用双歧...目的研究双歧杆菌三联活菌辅助蓝光照射对新生儿黄疸的价值。方法选取南京市高淳人民医院于2022年5月—2023年7月收治的136例黄疸新生儿为研究对象,以随机数表法分为两组,各68例。对照组采用蓝光照射治疗,研究组在对照组基础上采用双歧杆菌三联活菌治疗。治疗前及治疗6 d后,比较两组血清总胆红素水平(Total Serum Bilirubin,TSB)、直接胆红素(Direct Bilirubin,DBIL)、经皮黄疸指数、总胆红素与白蛋白比值(Bilirubin to Albumin Ratio,TSB/ALB)、乳酸脱氢酶水平(Lactate Dehydrogenase,LDH)水平以及不良反应发生情况。结果治疗前,两组机体胆红素水平比较,差异无统计学意义(P>0.05);治疗后,研究组TSB、DBIL及经皮黄疸指数水平低于对照组,差异有统计学意义(P均<0.05)。治疗前,两组TSB/ALB及LDH水平比较,差异无统计学意义(P均>0.05);治疗后,研究组TSB/ALB及LDH水平低于对照组,差异有统计学意义(P均<0.05)。研究组不良反应发生率为2.94%,与对照组的4.41%对比,差异无统计学意义(χ^(2)=0.208,P=0.649)。结论新生儿黄疸使用双歧杆菌三联活菌辅助蓝光照射能够降低胆红素水平,减少胆红素脑病发生风险,且不会增加不良反应。展开更多
基金funded by SHAN SHUI Conservation Centre,Beijing。
文摘The Beijing Swift(Apus apus pekinensis)is a typical cavity-nesting bird that often nests inside holes and crevices in old architectures.Direct observation of their breeding behaviour is challenging and their breeding ecology is thus poorly studied.In this study,we analysed light-level geolocation data collected from six Beijing Swifts for the first time.Our results showed that geolocators can make comprehensive inference of their incubation period and behaviour.As a cost-effective and non-invasive method,geolocators can not only facilitate discovering migration routes,but also can be widely applied in the study of avian reproductive behaviour,especially in cavity-nesting bird species.We further discussed the characteristics and merits of this method and compared with other conventional nest-monitoring methods in recording birds.
文摘A novel frame shift and integral technique for the enhancement of low light level moving image sequence is introduced. According to the technique, motion parameters of target are measured by algorithm based on difference processing. To obtain spatial relativity, images are shifted according to the motion parameters. As a result, the processing of integral and average can be applied to images that have been shifted. The technique of frame shift and integral that includes the algorithm of motion parameter determination is discussed, experiments with low light level moving image sequences are also described. The experiment results show the effectiveness and the robustness of the parameter determination algorithm, and the improvement in the signal-to-noise ratio （SNR） of low light level moving images.
文摘目的研究双歧杆菌三联活菌辅助蓝光照射对新生儿黄疸的价值。方法选取南京市高淳人民医院于2022年5月—2023年7月收治的136例黄疸新生儿为研究对象,以随机数表法分为两组,各68例。对照组采用蓝光照射治疗,研究组在对照组基础上采用双歧杆菌三联活菌治疗。治疗前及治疗6 d后,比较两组血清总胆红素水平(Total Serum Bilirubin,TSB)、直接胆红素(Direct Bilirubin,DBIL)、经皮黄疸指数、总胆红素与白蛋白比值(Bilirubin to Albumin Ratio,TSB/ALB)、乳酸脱氢酶水平(Lactate Dehydrogenase,LDH)水平以及不良反应发生情况。结果治疗前,两组机体胆红素水平比较,差异无统计学意义(P>0.05);治疗后,研究组TSB、DBIL及经皮黄疸指数水平低于对照组,差异有统计学意义(P均<0.05)。治疗前,两组TSB/ALB及LDH水平比较,差异无统计学意义(P均>0.05);治疗后,研究组TSB/ALB及LDH水平低于对照组,差异有统计学意义(P均<0.05)。研究组不良反应发生率为2.94%,与对照组的4.41%对比,差异无统计学意义(χ^(2)=0.208,P=0.649)。结论新生儿黄疸使用双歧杆菌三联活菌辅助蓝光照射能够降低胆红素水平,减少胆红素脑病发生风险,且不会增加不良反应。
