AIM:To identify a possible role of home echocardiography for monitoring chronic heart failure(CHF)patients.METHODS:We prospectively investigated 118 patients hospitalized during the last year for CHF who could not eas...AIM:To identify a possible role of home echocardiography for monitoring chronic heart failure(CHF)patients.METHODS:We prospectively investigated 118 patients hospitalized during the last year for CHF who could not easily reach the pertaining District Healthcare Center.The patients were followed up with 2 home management programs:one including clinical and electrocardiographic evaluations and also periodic home echocardiographic examinations(group A),the other including clinical and electrocardiographic evaluations only(group B).RESULTS:At the end of the 18-mo follow-up no significant differences were observed between the 2 groups as regards the primary endpoint:rehospitalization occurred in 4 patients of the group A and in 6 patients of the group B;major cardiovascular events occurred in 2 and in 3 patients,respectively.No significant differences were observed with respect to the secondary endpoints:one vascular event appeared in both the groups,3 cardiovascular deaths occurred in group A and 2 in group B.No significant differences were observed between the 2 groups as regards the composite endpoint of death plus hospitalization.CONCLUSION:Home echocardiography for monitoring of CHF patients does not improve the cardiovascular endpoints.In our CHF patients,a low incidence of vascular events was observed.展开更多
This study makes a significant progress in addressing the challenges of short-term slope displacement prediction in the Universal Landslide Monitoring Program,an unprecedented disaster mitigation program in China,wher...This study makes a significant progress in addressing the challenges of short-term slope displacement prediction in the Universal Landslide Monitoring Program,an unprecedented disaster mitigation program in China,where lots of newly established monitoring slopes lack sufficient historical deformation data,making it difficult to extract deformation patterns and provide effective predictions which plays a crucial role in the early warning and forecasting of landslide hazards.A slope displacement prediction method based on transfer learning is therefore proposed.Initially,the method transfers the deformation patterns learned from slopes with relatively rich deformation data by a pre-trained model based on a multi-slope integrated dataset to newly established monitoring slopes with limited or even no useful data,thus enabling rapid and efficient predictions for these slopes.Subsequently,as time goes on and monitoring data accumulates,fine-tuning of the pre-trained model for individual slopes can further improve prediction accuracy,enabling continuous optimization of prediction results.A case study indicates that,after being trained on a multi-slope integrated dataset,the TCN-Transformer model can efficiently serve as a pretrained model for displacement prediction at newly established monitoring slopes.The three-day average RMSE is significantly reduced by 34.6%compared to models trained only on individual slope data,and it also successfully predicts the majority of deformation peaks.The fine-tuned model based on accumulated data on the target newly established monitoring slope further reduced the three-day RMSE by 37.2%,demonstrating a considerable predictive accuracy.In conclusion,taking advantage of transfer learning,the proposed slope displacement prediction method effectively utilizes the available data,which enables the rapid deployment and continual refinement of displacement predictions on newly established monitoring slopes.展开更多
The National Estuarine Research Reserve System (NERRS) is an integrated network of 29 protected and coordinated estuarine reserve sites in 23 states and one territory (Puerto Rico) covering more than 525,000 ha of est...The National Estuarine Research Reserve System (NERRS) is an integrated network of 29 protected and coordinated estuarine reserve sites in 23 states and one territory (Puerto Rico) covering more than 525,000 ha of estuarine habitat, adjoining wetlands, and uplands that encompass 19 biogeographical regions along the Atlantic, Gulf of Mexico, and Pacific coasts, as well as the Caribbean Sea and Great Lakes. NERRS is an ecosystem-based research and monitoring network of sites serving as platforms to develop quantitative databases of value to coastal management programs in identifying and tracking short-term variability and long-term changes in the integrity and biodiversity of estuarine systems nationwide due to natural perturbations and anthropogenic disturbances. The reserve sites also play a vital role in assessing coastal issues of local, regional, and national significance for the purpose of sustaining estuarine systems and coastal lands, such as evaluating their responses to climate change and other major stressors to inform coastal decision-making and public awareness for the protection and resilience of natural resources and coastal communities. Over the past four decades, NERRS sites have collected large volumes of research and monitoring data of great utility in characterizing estuarine environments and addressing an array of resource-management concerns, including degraded water quality, loss and alteration of essential habitat, impacted fisheries, invasive species, and conservation.展开更多
The Ross Sea region is a biologically rich and dynamic environment and,although protected under various instruments of the Antarctic Treaty System,is threatened by a changing climate and increasing human activities lo...The Ross Sea region is a biologically rich and dynamic environment and,although protected under various instruments of the Antarctic Treaty System,is threatened by a changing climate and increasing human activities locally and globally.This opinion editorial describes the importance of research and monitoring in the Ross Sea and identifies opportunities and barriers to enhance them.展开更多
Assessment of the current status of Lake Baikal proved to be based on changes in natural (“preindustrial”) chemical content in basic abiotic and biological compartments of the Lake geosystem. This approach was used ...Assessment of the current status of Lake Baikal proved to be based on changes in natural (“preindustrial”) chemical content in basic abiotic and biological compartments of the Lake geosystem. This approach was used to evaluate background “base-line levels” of 6 major and about 50 minor and trace ele-ments in the Lake Baikal water body using a number of most reliable data re-ported within 1992-2012. In terms of environment geochemistry Baikal is one of the purest water reservoirs on the Earth. A simple mass balance model was proposed for assessing possible anthropogenic impact on Baikal water geo-chemistry. Estimations of change trends showed that only for Na+, SO42-, Cl- and Mo growth rate of their average concentrations in the Lake occurred to be 1%, 3%, 7% and 2% in every 10 years. Space-time monitoring schedules for all water body compartments of the Lake are proposed as well as similar moni-toring programs for tributaries, precipitations, bottom sediments, aquatic biota.展开更多
The Law of Soil and Water Conservation entitles the administrations of water resources at various level to monitor ecological environment and to proclaim status of soil erosion periodically.Monitoring units of soil an...The Law of Soil and Water Conservation entitles the administrations of water resources at various level to monitor ecological environment and to proclaim status of soil erosion periodically.Monitoring units of soil and water conservation approved by local governments are obliged to undertake this work.How to develop a monitoring program needs an overall and long-term concept.Particularity and objectives of ecological environment monitoring was discussed. Monitoring at provincial level may be divided into two levels:province-wide and at project level. Those indicators meaningful,sensitive to any disturbances,and simple to measure may be selected to test status of ecosystem stability and health.It makes sense to have an integrated sampling design,to set up permanent observation plots and to collect data, so that to have a relative timely,accurate understanding of ecosystems in the province.A program regarding sampling design,field methods, data analysis,documentation and implementation was detailed.展开更多
目的分析2018—2024年辽宁省非免疫规划(non-national immunization program,nNIP)疫苗使用情况,对全省nNIP疫苗接种现状进行评估,为制定公共卫生政策和优化疫苗接种策略提供科学依据。方法通过“中国免疫规划信息管理系统”和“辽宁省...目的分析2018—2024年辽宁省非免疫规划(non-national immunization program,nNIP)疫苗使用情况,对全省nNIP疫苗接种现状进行评估,为制定公共卫生政策和优化疫苗接种策略提供科学依据。方法通过“中国免疫规划信息管理系统”和“辽宁省免疫规划综合信息平台-预防接种信息系统”提取2018—2022年以及2023—2024年nNIP疫苗接种数据,其中包括nNIP疫苗替代记录。利用SPSS 13.0软件进行Pearson相关系数矩阵分析,并采用描述性分析方法对数据进行综合分析。结果2018—2024年辽宁省nNIP疫苗共接种25726024剂次,人均接种剂次为866剂次/万人,nNIP疫苗人均接种剂次、占所有疫苗接种总剂次比例均为逐年递增趋势。使用量居前3位的nNIP疫苗品种为人用狂犬病疫苗(rabies vaccine for human use,Rab)、流感疫苗(influenza vaccine,InfV)、水痘减毒活疫苗(varicella attenuated live vaccine,VarV)。在NIP中,替代率最高的为脊髓灰质炎疫苗(poliomyelitis vaccine,PV)(30.40%),其次为甲型肝炎减毒活疫苗(hepayitis A attenuated live vaccine,HepA-L)(29.08%)、无细胞百白破联合疫苗(diphtheria,tetanus and acellular pertussis combined vaccine,DTaP)(16.37%)。结论nNIP疫苗在公共卫生中的重要性日益凸显,作为预防接种的重要组成部分,需进一步加强监测质量;nNIP疫苗能够弥补NIP疫苗覆盖的不足,还可在一些NIP疫苗供应暂时短缺时发挥重要作用,在优化NIP疫苗的供应及分配的基础上提高nNIP疫苗接种水平,可有效防控疫苗可预防传染病的流行。展开更多
文摘AIM:To identify a possible role of home echocardiography for monitoring chronic heart failure(CHF)patients.METHODS:We prospectively investigated 118 patients hospitalized during the last year for CHF who could not easily reach the pertaining District Healthcare Center.The patients were followed up with 2 home management programs:one including clinical and electrocardiographic evaluations and also periodic home echocardiographic examinations(group A),the other including clinical and electrocardiographic evaluations only(group B).RESULTS:At the end of the 18-mo follow-up no significant differences were observed between the 2 groups as regards the primary endpoint:rehospitalization occurred in 4 patients of the group A and in 6 patients of the group B;major cardiovascular events occurred in 2 and in 3 patients,respectively.No significant differences were observed with respect to the secondary endpoints:one vascular event appeared in both the groups,3 cardiovascular deaths occurred in group A and 2 in group B.No significant differences were observed between the 2 groups as regards the composite endpoint of death plus hospitalization.CONCLUSION:Home echocardiography for monitoring of CHF patients does not improve the cardiovascular endpoints.In our CHF patients,a low incidence of vascular events was observed.
基金funded by the project of the China Geological Survey(DD20211364)the Science and Technology Talent Program of Ministry of Natural Resources of China(grant number 121106000000180039–2201)。
文摘This study makes a significant progress in addressing the challenges of short-term slope displacement prediction in the Universal Landslide Monitoring Program,an unprecedented disaster mitigation program in China,where lots of newly established monitoring slopes lack sufficient historical deformation data,making it difficult to extract deformation patterns and provide effective predictions which plays a crucial role in the early warning and forecasting of landslide hazards.A slope displacement prediction method based on transfer learning is therefore proposed.Initially,the method transfers the deformation patterns learned from slopes with relatively rich deformation data by a pre-trained model based on a multi-slope integrated dataset to newly established monitoring slopes with limited or even no useful data,thus enabling rapid and efficient predictions for these slopes.Subsequently,as time goes on and monitoring data accumulates,fine-tuning of the pre-trained model for individual slopes can further improve prediction accuracy,enabling continuous optimization of prediction results.A case study indicates that,after being trained on a multi-slope integrated dataset,the TCN-Transformer model can efficiently serve as a pretrained model for displacement prediction at newly established monitoring slopes.The three-day average RMSE is significantly reduced by 34.6%compared to models trained only on individual slope data,and it also successfully predicts the majority of deformation peaks.The fine-tuned model based on accumulated data on the target newly established monitoring slope further reduced the three-day RMSE by 37.2%,demonstrating a considerable predictive accuracy.In conclusion,taking advantage of transfer learning,the proposed slope displacement prediction method effectively utilizes the available data,which enables the rapid deployment and continual refinement of displacement predictions on newly established monitoring slopes.
文摘The National Estuarine Research Reserve System (NERRS) is an integrated network of 29 protected and coordinated estuarine reserve sites in 23 states and one territory (Puerto Rico) covering more than 525,000 ha of estuarine habitat, adjoining wetlands, and uplands that encompass 19 biogeographical regions along the Atlantic, Gulf of Mexico, and Pacific coasts, as well as the Caribbean Sea and Great Lakes. NERRS is an ecosystem-based research and monitoring network of sites serving as platforms to develop quantitative databases of value to coastal management programs in identifying and tracking short-term variability and long-term changes in the integrity and biodiversity of estuarine systems nationwide due to natural perturbations and anthropogenic disturbances. The reserve sites also play a vital role in assessing coastal issues of local, regional, and national significance for the purpose of sustaining estuarine systems and coastal lands, such as evaluating their responses to climate change and other major stressors to inform coastal decision-making and public awareness for the protection and resilience of natural resources and coastal communities. Over the past four decades, NERRS sites have collected large volumes of research and monitoring data of great utility in characterizing estuarine environments and addressing an array of resource-management concerns, including degraded water quality, loss and alteration of essential habitat, impacted fisheries, invasive species, and conservation.
基金funded by the Antarctic and Southern Ocean Coalition (www.asoc.org)
文摘The Ross Sea region is a biologically rich and dynamic environment and,although protected under various instruments of the Antarctic Treaty System,is threatened by a changing climate and increasing human activities locally and globally.This opinion editorial describes the importance of research and monitoring in the Ross Sea and identifies opportunities and barriers to enhance them.
文摘Assessment of the current status of Lake Baikal proved to be based on changes in natural (“preindustrial”) chemical content in basic abiotic and biological compartments of the Lake geosystem. This approach was used to evaluate background “base-line levels” of 6 major and about 50 minor and trace ele-ments in the Lake Baikal water body using a number of most reliable data re-ported within 1992-2012. In terms of environment geochemistry Baikal is one of the purest water reservoirs on the Earth. A simple mass balance model was proposed for assessing possible anthropogenic impact on Baikal water geo-chemistry. Estimations of change trends showed that only for Na+, SO42-, Cl- and Mo growth rate of their average concentrations in the Lake occurred to be 1%, 3%, 7% and 2% in every 10 years. Space-time monitoring schedules for all water body compartments of the Lake are proposed as well as similar moni-toring programs for tributaries, precipitations, bottom sediments, aquatic biota.
基金the Scientific Research Foundation for the Returned Overseas Chinese ScholarsState Education Ministry"Response ofForest Regeneration in Alpine Region to Global Climate Change"( 2 0 0 2 -2 0 0 4) Shaanxi Provincial Foreign Expert Bu-reau"Trial on Vegetation Rehabilitation in Degraded Mountain Ecosystem"( 2 0 0 2 -2 0 0 3 )
文摘The Law of Soil and Water Conservation entitles the administrations of water resources at various level to monitor ecological environment and to proclaim status of soil erosion periodically.Monitoring units of soil and water conservation approved by local governments are obliged to undertake this work.How to develop a monitoring program needs an overall and long-term concept.Particularity and objectives of ecological environment monitoring was discussed. Monitoring at provincial level may be divided into two levels:province-wide and at project level. Those indicators meaningful,sensitive to any disturbances,and simple to measure may be selected to test status of ecosystem stability and health.It makes sense to have an integrated sampling design,to set up permanent observation plots and to collect data, so that to have a relative timely,accurate understanding of ecosystems in the province.A program regarding sampling design,field methods, data analysis,documentation and implementation was detailed.
文摘目的分析2018—2024年辽宁省非免疫规划(non-national immunization program,nNIP)疫苗使用情况,对全省nNIP疫苗接种现状进行评估,为制定公共卫生政策和优化疫苗接种策略提供科学依据。方法通过“中国免疫规划信息管理系统”和“辽宁省免疫规划综合信息平台-预防接种信息系统”提取2018—2022年以及2023—2024年nNIP疫苗接种数据,其中包括nNIP疫苗替代记录。利用SPSS 13.0软件进行Pearson相关系数矩阵分析,并采用描述性分析方法对数据进行综合分析。结果2018—2024年辽宁省nNIP疫苗共接种25726024剂次,人均接种剂次为866剂次/万人,nNIP疫苗人均接种剂次、占所有疫苗接种总剂次比例均为逐年递增趋势。使用量居前3位的nNIP疫苗品种为人用狂犬病疫苗(rabies vaccine for human use,Rab)、流感疫苗(influenza vaccine,InfV)、水痘减毒活疫苗(varicella attenuated live vaccine,VarV)。在NIP中,替代率最高的为脊髓灰质炎疫苗(poliomyelitis vaccine,PV)(30.40%),其次为甲型肝炎减毒活疫苗(hepayitis A attenuated live vaccine,HepA-L)(29.08%)、无细胞百白破联合疫苗(diphtheria,tetanus and acellular pertussis combined vaccine,DTaP)(16.37%)。结论nNIP疫苗在公共卫生中的重要性日益凸显,作为预防接种的重要组成部分,需进一步加强监测质量;nNIP疫苗能够弥补NIP疫苗覆盖的不足,还可在一些NIP疫苗供应暂时短缺时发挥重要作用,在优化NIP疫苗的供应及分配的基础上提高nNIP疫苗接种水平,可有效防控疫苗可预防传染病的流行。
