Background: The species–area relationship is one of the best documented patterns in community ecology.Factors influencing species–area relationship are still not well understood.Since the proposal of the equilibrium...Background: The species–area relationship is one of the best documented patterns in community ecology.Factors influencing species–area relationship are still not well understood.Since the proposal of the equilibrium theory of island biogeography, many studies have tested the effects of area and isolation, estimating effects of disturbance and patch age were scarce and should also be important bearing.Methods: We investigated summer waterbird species richness in 38 post?mining subsidence lakes in Huainan and Fuyang, Anhui, China, May 25–June 12, 2016.We examined the effects of lake area, isolation(distance to natural water bodies), aquaculture disturbance, lake age and lake state(still sinking or not sinking) on summer waterbird species richness with multivariable linear regression method and model selection method.Results: Our results from multivariable linear regression and model selection were consistent, which showed that species richness was positively related with lake area and negatively related with isolation.Aquaculture disturbance negatively influenced species richness.Highest species richness were found in lakes under intermediate intensity of aquaculture activities with area less than 100 ha and lakes under low intensity of aquaculture activities with area greater than 100 ha.Lake age and lake state had no significant effects on species richness.Conclusions: Species richness was most related with lake area, aquaculture disturbance, and isolation, with lake area had a positive effect, while aquaculture activities and isolation had a negative effect.What's more, aquaculture activi?ties significantly changed the slope of species–area relationship and might impede us finding a relationship between species richness and lake age.展开更多
肝癌是我国常见的恶性肿瘤之一。肝切除术是肝癌的标准根治性治疗方法,研究表明将快速康复外科(enhanced recovery after surgery,ERAS)应用在肝胆手术中是安全且有效的。本文基于ERAS理念在肝切除术的术前、术中、术后护理现状及相关...肝癌是我国常见的恶性肿瘤之一。肝切除术是肝癌的标准根治性治疗方法,研究表明将快速康复外科(enhanced recovery after surgery,ERAS)应用在肝胆手术中是安全且有效的。本文基于ERAS理念在肝切除术的术前、术中、术后护理现状及相关研究进展进行综述,以期为肝切除术的患者护理提供参考。展开更多
目的探讨跟骨骨折术后患者应用基于加速康复外科理念(Enhanced recovery after surgery,ERAS)的多维度护理,对其足踝功能康复训练耐受情况的影响。方法对2022年6月-2024年5月,收治的121例跟骨骨折患者,按简单随机抽样法分为对照组(n=60...目的探讨跟骨骨折术后患者应用基于加速康复外科理念(Enhanced recovery after surgery,ERAS)的多维度护理,对其足踝功能康复训练耐受情况的影响。方法对2022年6月-2024年5月,收治的121例跟骨骨折患者,按简单随机抽样法分为对照组(n=60)、观察组(n=61),两组均行外科手术后分别予以常规护理、常规护理+基于ERAS理念的多维度护理,对比两组遵医行为、足踝功能。结果观察组遵医行为率高于对照组(96.72%>81.67%)(χ2=7.149,P=0.008);护理后观察组踝关节功能评分(American Orthopaedic Foot and Ankle Society,AOFAS)(85.29±5.45)分均高于对照组(80.41±4.27)分(P<0.05)。结论应用基于ERAS理念的多维度护理,可有效提高跟骨骨折术后患者遵医行为,改善足踝功能,可行性良好。展开更多
目的:探究基于快速康复外科理念(enhanced recovery after surgery,ERAS)的童趣化护理在学龄前期儿童肱骨髁上骨折中的应用效果。方法:选取2021年7月-2023年3月苏州大学附属儿童医院收治的326例学龄前期肱骨髁上骨折住院患儿为研究对象...目的:探究基于快速康复外科理念(enhanced recovery after surgery,ERAS)的童趣化护理在学龄前期儿童肱骨髁上骨折中的应用效果。方法:选取2021年7月-2023年3月苏州大学附属儿童医院收治的326例学龄前期肱骨髁上骨折住院患儿为研究对象,按照随机数字表法将患儿分为对照组和ERAS组各163例。对照组采取围术期常规护理,ERAS组在对照组的基础上采取基于ERAS理念的童趣化护理干预,比较两组患儿配合度、疼痛程度、功能锻炼依从性、末梢血运障碍发生率及护理满意度。结果:ERAS组患儿配合度明显优于对照组,差异有统计学意义(P<0.001);ERAS组功能锻炼依从性明显优于对照组,差异有统计学意义(P<0.001);ERAS组肢体末梢循环障碍率低于对照组意义(P<0.05);ERAS组护理满意度优于对照组,差异有统计学意义(P<0.05)。结论:学龄前期肱骨髁上骨折患儿围术期运用基于ERAS理念的童趣化护理可促进术后尽快恢复,减轻疼痛反应,缩短住院时间,提高护理满意度。展开更多
Whether mining activity results in reduced flow of surface water in the Peace River Watershed of Florida has been the subject of much debate. With increased dependence of downstream users on surface water flow of the ...Whether mining activity results in reduced flow of surface water in the Peace River Watershed of Florida has been the subject of much debate. With increased dependence of downstream users on surface water flow of the Peace River as a source of drinking water for four coastal counties in Southwest Florida and problems of water security, the debate has been intensified. It is possible to assess relationships of mining with streamflow in the upper reaches of the Peace River Basin using hydrologic modeling and identify mined sub-basins. In this work, land-use change impacts were simulated by the Hydrological Simulation Program--Fortran （HSPF） model based on geographical information system （GIS） tools, to compare pre- and post-mining streamflows at a study site of the Peace River in west-central Florida. The purpose of this study was to determine if land-use changes caused by mining have negatively impacted streamflow in the Peace River. Changes of land use were identified before and after mining activities. A coupled volume-water depth-discharge （V-h-Q） model based on stage/storage and stage/discharge was applied using HSPF for the pre-mining and post-mining models, respectively. Daily simulated post-mining hydrographs from HSPF were plotted with the calibrated pre-mining results and streamflow hydrographs from the 18 gauging stations, to compare timing of peaks, low fows and flow trends. Analyses of percent ex- ceedances of flow frequency curves of the streams indicated that most streams had similar distributions for mined （reclaimed） and pre- mining periods. In the streamflow change analysis, streamflows actually increased in mining-affected basins at nearly half the stations. Streamflows at other stations diminished. Overall from this comprehensive study, there were declines in streamflow at most gauging stations on the mainstem of the Peace River and its tributaries. The results of this study suggest that regional planning is urgently needed to propose reclamation schemes that enhance regional hydrology.展开更多
基金supported by the National Natural Science Foundation of China(Grant No.31472020)
文摘Background: The species–area relationship is one of the best documented patterns in community ecology.Factors influencing species–area relationship are still not well understood.Since the proposal of the equilibrium theory of island biogeography, many studies have tested the effects of area and isolation, estimating effects of disturbance and patch age were scarce and should also be important bearing.Methods: We investigated summer waterbird species richness in 38 post?mining subsidence lakes in Huainan and Fuyang, Anhui, China, May 25–June 12, 2016.We examined the effects of lake area, isolation(distance to natural water bodies), aquaculture disturbance, lake age and lake state(still sinking or not sinking) on summer waterbird species richness with multivariable linear regression method and model selection method.Results: Our results from multivariable linear regression and model selection were consistent, which showed that species richness was positively related with lake area and negatively related with isolation.Aquaculture disturbance negatively influenced species richness.Highest species richness were found in lakes under intermediate intensity of aquaculture activities with area less than 100 ha and lakes under low intensity of aquaculture activities with area greater than 100 ha.Lake age and lake state had no significant effects on species richness.Conclusions: Species richness was most related with lake area, aquaculture disturbance, and isolation, with lake area had a positive effect, while aquaculture activities and isolation had a negative effect.What's more, aquaculture activi?ties significantly changed the slope of species–area relationship and might impede us finding a relationship between species richness and lake age.
文摘肝癌是我国常见的恶性肿瘤之一。肝切除术是肝癌的标准根治性治疗方法,研究表明将快速康复外科(enhanced recovery after surgery,ERAS)应用在肝胆手术中是安全且有效的。本文基于ERAS理念在肝切除术的术前、术中、术后护理现状及相关研究进展进行综述,以期为肝切除术的患者护理提供参考。
文摘目的探讨跟骨骨折术后患者应用基于加速康复外科理念(Enhanced recovery after surgery,ERAS)的多维度护理,对其足踝功能康复训练耐受情况的影响。方法对2022年6月-2024年5月,收治的121例跟骨骨折患者,按简单随机抽样法分为对照组(n=60)、观察组(n=61),两组均行外科手术后分别予以常规护理、常规护理+基于ERAS理念的多维度护理,对比两组遵医行为、足踝功能。结果观察组遵医行为率高于对照组(96.72%>81.67%)(χ2=7.149,P=0.008);护理后观察组踝关节功能评分(American Orthopaedic Foot and Ankle Society,AOFAS)(85.29±5.45)分均高于对照组(80.41±4.27)分(P<0.05)。结论应用基于ERAS理念的多维度护理,可有效提高跟骨骨折术后患者遵医行为,改善足踝功能,可行性良好。
文摘目的:探究基于快速康复外科理念(enhanced recovery after surgery,ERAS)的童趣化护理在学龄前期儿童肱骨髁上骨折中的应用效果。方法:选取2021年7月-2023年3月苏州大学附属儿童医院收治的326例学龄前期肱骨髁上骨折住院患儿为研究对象,按照随机数字表法将患儿分为对照组和ERAS组各163例。对照组采取围术期常规护理,ERAS组在对照组的基础上采取基于ERAS理念的童趣化护理干预,比较两组患儿配合度、疼痛程度、功能锻炼依从性、末梢血运障碍发生率及护理满意度。结果:ERAS组患儿配合度明显优于对照组,差异有统计学意义(P<0.001);ERAS组功能锻炼依从性明显优于对照组,差异有统计学意义(P<0.001);ERAS组肢体末梢循环障碍率低于对照组意义(P<0.05);ERAS组护理满意度优于对照组,差异有统计学意义(P<0.05)。结论:学龄前期肱骨髁上骨折患儿围术期运用基于ERAS理念的童趣化护理可促进术后尽快恢复,减轻疼痛反应,缩短住院时间,提高护理满意度。
基金National Natural Science Foundation of China(No.41271004)Beijing Municipal Science &Technology New Star Project Funds(No.2010B046)
文摘Whether mining activity results in reduced flow of surface water in the Peace River Watershed of Florida has been the subject of much debate. With increased dependence of downstream users on surface water flow of the Peace River as a source of drinking water for four coastal counties in Southwest Florida and problems of water security, the debate has been intensified. It is possible to assess relationships of mining with streamflow in the upper reaches of the Peace River Basin using hydrologic modeling and identify mined sub-basins. In this work, land-use change impacts were simulated by the Hydrological Simulation Program--Fortran （HSPF） model based on geographical information system （GIS） tools, to compare pre- and post-mining streamflows at a study site of the Peace River in west-central Florida. The purpose of this study was to determine if land-use changes caused by mining have negatively impacted streamflow in the Peace River. Changes of land use were identified before and after mining activities. A coupled volume-water depth-discharge （V-h-Q） model based on stage/storage and stage/discharge was applied using HSPF for the pre-mining and post-mining models, respectively. Daily simulated post-mining hydrographs from HSPF were plotted with the calibrated pre-mining results and streamflow hydrographs from the 18 gauging stations, to compare timing of peaks, low fows and flow trends. Analyses of percent ex- ceedances of flow frequency curves of the streams indicated that most streams had similar distributions for mined （reclaimed） and pre- mining periods. In the streamflow change analysis, streamflows actually increased in mining-affected basins at nearly half the stations. Streamflows at other stations diminished. Overall from this comprehensive study, there were declines in streamflow at most gauging stations on the mainstem of the Peace River and its tributaries. The results of this study suggest that regional planning is urgently needed to propose reclamation schemes that enhance regional hydrology.
