State Administration for Market Regulation and National Standardization Administration of China have approved the following 46 mandatory national standards as well as 2 mandatory national standards with amendment.
State Administration for Market Regulation and National Standardization Administration of China have approved the following 354 voluntary national standards as well as 7 voluntary national standards with amendment.
State Administration for Market Regulation and National Standardization Administration of China have approved the following 25 mandatory national standards as well as 4 mandatory national standards with amendment.
State Administration for Market Regulation and National Standardization Administration of China have approved the following 360 voluntary national standards as well as 9 voluntary national standards with amendment.
State Administration for Market Regulation and National Standardization Administration of China have approved the following 34 mandatory national standards.
State Administration for Market Regulation and National Standardization Administration of China have approved the following 14 national guiding technical docoments for standardization.
State Administration for Market Regulation and National Standardization Administration of China have approved the following 3 voluntary national standards.
State Administration for Market Regulation and National Standardization Administration of China have approved the foreign language versions of the following 60 national standards in foreign language version.
State Administration for Market Regulation and National Standardization Administration of China have approved the foreign language versions of the following 41 national standards in foreign language versions.
State Administration for Market Regulation and National Standardization Administration of China have approved the following 758 voluntary national standards and 6 voluntary national standards with amendment.
Objective Frailty is becoming increasingly common among aging adults.Frailty transitionis shaped by biological,social,psychological,and environmental factors.This study investigated combined effects of protective fact...Objective Frailty is becoming increasingly common among aging adults.Frailty transitionis shaped by biological,social,psychological,and environmental factors.This study investigated combined effects of protective factors on frailty transition by constructing a Protection Index(PI)to guide targeted interventions.Methods Data were extracted from the 4th Sample Survey of the Aged Population in Urban and Rural China,including baseline(2017)and follow-up(2019)surveys.Frailty was assessed using the Frailty Index(FI),whereas the PI measured protective factors.Frailty transitions over 2 years were analyzed prospectively.Pearson’s correlation examined the relationship between FI and PI,and logistic regression assessed the effects of PI on frailty transitions.Results This study included 9,093 older adults.FI values increased with age and were higher in women,whereas PI values decreased with age and were higher in men.Over 2 years,56.2%of the participants showed a stable frailty status,14.2%improved,and 29.6%worsened.Negative transitions were more common than positive transitions,with transitions occurring most frequently between adjacent states.The PI was moderately negatively correlated with the FI(r=−0.349,P<0.001).A higher PI was associated with a lower risk of negative transitions among robust and prefrail individuals(OR=0.989,0.981,both P<0.05),but showed no significant effect among those with existing frailty.Conclusion Negative frailty transitions were more common with advancing age.Enhancing PI may help prevent negative frailty transitions among robust and pre-frail older adults,underscoring the value of early interventions.展开更多
The Sichuan Yanting Agro-ecosystem Research Station in Chinese National Ecosystem Research Network(CERN),also named the Yanting Agroecological Experimental Station of Purple Soil,Chinese Academy of Science,is situated...The Sichuan Yanting Agro-ecosystem Research Station in Chinese National Ecosystem Research Network(CERN),also named the Yanting Agroecological Experimental Station of Purple Soil,Chinese Academy of Science,is situated in Yanting County(105°27'E,31°16'N)in the north-central Sichuan Basin—a region characterized by hilly landscapes.The area features exposed purple sand-mudstone strata from the Jurassic and Cretaceous periods.The station represents a typical subtropical farmland ecosystem dominated by purple soils.Established in 1980,the station joined the CERN in 1991.It was designated a National Key Field Research Station in 2005,and in 2007,it was recognized as a Soil and Water Conservation Science and Technology Demonstration Park by the Ministry of Water Resources.It also serves as an observation site for the Global Terrestrial Observation System(GTOS)and is a key field station under the Chinese Ministry of Agriculture.展开更多
State Administration for Market Regulation and National Standardization Administration of China have approved the following 80 national standards in foreign language version.
State Administration for Market Regulation and National Standardization Administration of China have approved the following 85 national standards in foreign language version.
The International Standardization Youth Star Competition is held for three consecutive years.We have witnessed continuous improvement in the competition each year,which is a result of our collective efforts.
State Administration for Market Regulation and National Standardization Administration of China have approved the following 13 national guiding technical documents for standardization.
State Administration for Market Regulation and National Standardization Administration of China have approved the following 76 national standards as guiding technical docoments.
State Administration for Market Regulation and National Standardization Administration of China have approved the following 48 mandatory national standards.
Plants constitute nearly 80%of the planet’s total biomass(Bar-On et al.,2018);however,this vital group is experiencing severe threats,and recent evaluations indicate that approximately 45%of the world's described...Plants constitute nearly 80%of the planet’s total biomass(Bar-On et al.,2018);however,this vital group is experiencing severe threats,and recent evaluations indicate that approximately 45%of the world's described plant species are at risk of extinction(Bachman et al.,2024).The number of plant extinctions has increased by 60%in the last 100 years(Di Marco et al.,2017).Over the past 250 years,571 plant species have gone extinct—more than twice the combined total of extinct birds,mammals,and amphibians(217 species)(Briggs,2019).展开更多
The study aimed at predicting potential suitable areas with national key reserve Orchidaceae plants in Heilongjiang province and conducive to plant protection.The distribution point data of six Orchidaceae plants and ...The study aimed at predicting potential suitable areas with national key reserve Orchidaceae plants in Heilongjiang province and conducive to plant protection.The distribution point data of six Orchidaceae plants and 19 bioclimatic variables were selected,and the environmental factors required for modeling were screened out by pearson correlation analysis and variance inflation factor(VIF)analysis.The potential suitable areas of Orchidaceae plants were predictat present and under different climate scenarios in 2090s by using geographic information system(GIS)and Maximum Entropy Model(MaxEnt).And then evaluated the prediction accuracy of the MaxEnt model using the AUC value,the TSS value and the Kappa value.The results showed that:1)The area under curve(AUC)values,true skill statistics(TSS)values and KAPPA values predicted by MaxEnt model were separately above 0.9,0.85 and 0.75.2)Under the climate scenario at present,the total suitable area of Orchidaceae plants was about 9.61×10^(6)km^(2),which was mainly distributed in Heilongjiang province.Among them,the high-suitable area of Cypripedium shanxiense S.C.Chen was the largest,the non-suitable area of Cypripedium guttatum Sw was the largest.3)Under different climate scenarios in 2090s,the total suitable area was slightly increasing(9.62×10^(6)km^(2)).Among them,Cypripedium shanxiense S.C.Chen and Gastrodiae Rhizoma both showed the trend of expansion to the southwest,China,and the suitable areas expanded significantly.Comprehensive factor analysis showed that temperature and precipitation were the main bioclimatic variables of suitable areas distribution,and the low emission scenario(SSP 2-4.5)will be more conducive to the survival of Orchidaceae plants.展开更多
文摘State Administration for Market Regulation and National Standardization Administration of China have approved the following 46 mandatory national standards as well as 2 mandatory national standards with amendment.
文摘State Administration for Market Regulation and National Standardization Administration of China have approved the following 354 voluntary national standards as well as 7 voluntary national standards with amendment.
文摘State Administration for Market Regulation and National Standardization Administration of China have approved the following 25 mandatory national standards as well as 4 mandatory national standards with amendment.
文摘State Administration for Market Regulation and National Standardization Administration of China have approved the following 360 voluntary national standards as well as 9 voluntary national standards with amendment.
文摘State Administration for Market Regulation and National Standardization Administration of China have approved the following 34 mandatory national standards.
文摘State Administration for Market Regulation and National Standardization Administration of China have approved the following 14 national guiding technical docoments for standardization.
文摘State Administration for Market Regulation and National Standardization Administration of China have approved the following 3 voluntary national standards.
文摘State Administration for Market Regulation and National Standardization Administration of China have approved the foreign language versions of the following 60 national standards in foreign language version.
文摘State Administration for Market Regulation and National Standardization Administration of China have approved the foreign language versions of the following 41 national standards in foreign language versions.
文摘State Administration for Market Regulation and National Standardization Administration of China have approved the following 758 voluntary national standards and 6 voluntary national standards with amendment.
基金supported by grants from the National Key R&D Program of China[Grant Nos.2020YFC2003000 and 2020YFC2003001]the National High Level Hospital Clinical Research Funding(BJ-2023-074 and BJ-2023-018)+1 种基金Beijing Municipal Science&Technology Commission“AI+Health Collaborative Innovation Cultivation”Project(Z221100003522015)the Non-Profit Central Research Institute Fund of the Chinese Academy of Medical Sciences(2021-JKCS-024).
文摘Objective Frailty is becoming increasingly common among aging adults.Frailty transitionis shaped by biological,social,psychological,and environmental factors.This study investigated combined effects of protective factors on frailty transition by constructing a Protection Index(PI)to guide targeted interventions.Methods Data were extracted from the 4th Sample Survey of the Aged Population in Urban and Rural China,including baseline(2017)and follow-up(2019)surveys.Frailty was assessed using the Frailty Index(FI),whereas the PI measured protective factors.Frailty transitions over 2 years were analyzed prospectively.Pearson’s correlation examined the relationship between FI and PI,and logistic regression assessed the effects of PI on frailty transitions.Results This study included 9,093 older adults.FI values increased with age and were higher in women,whereas PI values decreased with age and were higher in men.Over 2 years,56.2%of the participants showed a stable frailty status,14.2%improved,and 29.6%worsened.Negative transitions were more common than positive transitions,with transitions occurring most frequently between adjacent states.The PI was moderately negatively correlated with the FI(r=−0.349,P<0.001).A higher PI was associated with a lower risk of negative transitions among robust and prefrail individuals(OR=0.989,0.981,both P<0.05),but showed no significant effect among those with existing frailty.Conclusion Negative frailty transitions were more common with advancing age.Enhancing PI may help prevent negative frailty transitions among robust and pre-frail older adults,underscoring the value of early interventions.
文摘The Sichuan Yanting Agro-ecosystem Research Station in Chinese National Ecosystem Research Network(CERN),also named the Yanting Agroecological Experimental Station of Purple Soil,Chinese Academy of Science,is situated in Yanting County(105°27'E,31°16'N)in the north-central Sichuan Basin—a region characterized by hilly landscapes.The area features exposed purple sand-mudstone strata from the Jurassic and Cretaceous periods.The station represents a typical subtropical farmland ecosystem dominated by purple soils.Established in 1980,the station joined the CERN in 1991.It was designated a National Key Field Research Station in 2005,and in 2007,it was recognized as a Soil and Water Conservation Science and Technology Demonstration Park by the Ministry of Water Resources.It also serves as an observation site for the Global Terrestrial Observation System(GTOS)and is a key field station under the Chinese Ministry of Agriculture.
文摘State Administration for Market Regulation and National Standardization Administration of China have approved the following 80 national standards in foreign language version.
文摘State Administration for Market Regulation and National Standardization Administration of China have approved the following 85 national standards in foreign language version.
文摘The International Standardization Youth Star Competition is held for three consecutive years.We have witnessed continuous improvement in the competition each year,which is a result of our collective efforts.
文摘State Administration for Market Regulation and National Standardization Administration of China have approved the following 13 national guiding technical documents for standardization.
文摘State Administration for Market Regulation and National Standardization Administration of China have approved the following 76 national standards as guiding technical docoments.
文摘State Administration for Market Regulation and National Standardization Administration of China have approved the following 48 mandatory national standards.
基金support of the ORG.one project of Oxford Nanopore Technologies(ONT),the Rufford Grants(45249-1)the Idea Wild Grants(Project ID-KJOSINDI0125-00)the Mohamed Bin Zyed Species Conservation(MBZ)(GEF Grant no-240535253)Funds in our efforts to conserve threatened trees in the Western Ghats Biodiversity Hotspot Forest regions.
文摘Plants constitute nearly 80%of the planet’s total biomass(Bar-On et al.,2018);however,this vital group is experiencing severe threats,and recent evaluations indicate that approximately 45%of the world's described plant species are at risk of extinction(Bachman et al.,2024).The number of plant extinctions has increased by 60%in the last 100 years(Di Marco et al.,2017).Over the past 250 years,571 plant species have gone extinct—more than twice the combined total of extinct birds,mammals,and amphibians(217 species)(Briggs,2019).
基金funded by Project of Scientific Research Business Expenses of Provincial Scientific Research Institutes in Heilongjiang Province(No.CZKYF2023-1-B024)Heilongjiang Academy of Sciences Dean Fund Project(No.YZ2022ZR02)+1 种基金the Science and Technology Basic Resources Investigation Program of China(No.2019FY100500)the Fundamental Research Funds for the Central Universities(No.2572023CT11).
文摘The study aimed at predicting potential suitable areas with national key reserve Orchidaceae plants in Heilongjiang province and conducive to plant protection.The distribution point data of six Orchidaceae plants and 19 bioclimatic variables were selected,and the environmental factors required for modeling were screened out by pearson correlation analysis and variance inflation factor(VIF)analysis.The potential suitable areas of Orchidaceae plants were predictat present and under different climate scenarios in 2090s by using geographic information system(GIS)and Maximum Entropy Model(MaxEnt).And then evaluated the prediction accuracy of the MaxEnt model using the AUC value,the TSS value and the Kappa value.The results showed that:1)The area under curve(AUC)values,true skill statistics(TSS)values and KAPPA values predicted by MaxEnt model were separately above 0.9,0.85 and 0.75.2)Under the climate scenario at present,the total suitable area of Orchidaceae plants was about 9.61×10^(6)km^(2),which was mainly distributed in Heilongjiang province.Among them,the high-suitable area of Cypripedium shanxiense S.C.Chen was the largest,the non-suitable area of Cypripedium guttatum Sw was the largest.3)Under different climate scenarios in 2090s,the total suitable area was slightly increasing(9.62×10^(6)km^(2)).Among them,Cypripedium shanxiense S.C.Chen and Gastrodiae Rhizoma both showed the trend of expansion to the southwest,China,and the suitable areas expanded significantly.Comprehensive factor analysis showed that temperature and precipitation were the main bioclimatic variables of suitable areas distribution,and the low emission scenario(SSP 2-4.5)will be more conducive to the survival of Orchidaceae plants.
