[Objective]The research aimed to analyze the variation characteristics of sunshine hours in Puyang City in recent 51 years.[Method]Based on the monthly sunshine hours in five meteorological stations of Puyang City dur...[Objective]The research aimed to analyze the variation characteristics of sunshine hours in Puyang City in recent 51 years.[Method]Based on the monthly sunshine hours in five meteorological stations of Puyang City during 1960-2010,the annual,seasonal and monthly variation trends of sunshine hours,mutation time node were analyzed by using the climate trend coefficient,climate tendency rate,sliding average method,SNR and so on.The objective fact and rule of sunshine variation in Puyang in recent 51 years were revealed.[Result]The annual sunshine hours presented the decline trend in Puyang City in recent 51 years,and the decline range was-14.30 h/a.The seasonal sunshine hours presented the decline trend over the years,and the decline range was during-0.66 and-1.89 h/a.The maximum decline range was-1.89 h/a in summer.The monthly sunshine hours presented the decline trend over the years,and the decline range was during-21.51 and-2.13 h/a.The maximum decline range was-21.51 h/a in July.The annual sunshine hours had one mutation in 1983.The sunshine hours was more in the 1960s and 1970s.In the middle and late periods of 1980s,the sunshine hours was relatively less.[Conclusion]The research provided the guidance value for the adjustment of plantation structure and the transformation of agricultural developed manner in Puyang City.展开更多
Introduction:On September 16,2024,the Puyang City CDC received a report of a suspected foodborne disease outbreak involving 14 individuals who developed nausea,vomiting,and diarrhea following attendance at a hotel ban...Introduction:On September 16,2024,the Puyang City CDC received a report of a suspected foodborne disease outbreak involving 14 individuals who developed nausea,vomiting,and diarrhea following attendance at a hotel banquet.Upon notification,the District CDC immediately deployed a specialized investigation team to characterize the epidemiological features of the outbreak,identify the causative pathogen,assess potential transmission risks,and implement effective control and prevention measures.Methods:We integrated comprehensive on-site epidemiological investigations,clinical symptom analyses,and laboratory diagnostics to isolate and identify pathogenic agents from retained food samples,environmental specimens,and anal swabs collected from affected cases.The recovered isolates underwent enterotoxin-virulence-gene profiling,antimicrobialsusceptibility testing,and phylogenetic analyses.Additionally,we characterized the architecture of the enterotoxin-A-linked pathogenicity island vSaβ.Results:A total of 4 S.aureus strains were successfully isolated from 22 leftover food samples,2 environmental swabs,and 2 patient anal swabs.Contaminated donkey and goose meat was identified as the outbreak source.All isolates harbored sea and seb enterotoxin genes,exhibited PEN-OXA-ERY-CLI resistance patterns,and were identified as clonal ST59-spa t441-SCCmec IVa CA-MRSA strains.Phylogenetic analysis positioned the outbreak strains within the Asia-Pacific clade,distinguishing them from the North American ST59 sublineage.Comprehensive analysis of the sea-associated virulence island vSaβidentified a novel structural arrangement containing a type A IEC cluster(sea-sak-chp-scn).Conclusions:The detection of foodborne ST59 CAMRSA clones in this outbreak underscores the prevalence and transmission risks associated with this hypervirulent lineage.These findings emphasize the critical need to strengthen surveillance measures for CA-MRSA among food industry workers.展开更多
文摘[Objective]The research aimed to analyze the variation characteristics of sunshine hours in Puyang City in recent 51 years.[Method]Based on the monthly sunshine hours in five meteorological stations of Puyang City during 1960-2010,the annual,seasonal and monthly variation trends of sunshine hours,mutation time node were analyzed by using the climate trend coefficient,climate tendency rate,sliding average method,SNR and so on.The objective fact and rule of sunshine variation in Puyang in recent 51 years were revealed.[Result]The annual sunshine hours presented the decline trend in Puyang City in recent 51 years,and the decline range was-14.30 h/a.The seasonal sunshine hours presented the decline trend over the years,and the decline range was during-0.66 and-1.89 h/a.The maximum decline range was-1.89 h/a in summer.The monthly sunshine hours presented the decline trend over the years,and the decline range was during-21.51 and-2.13 h/a.The maximum decline range was-21.51 h/a in July.The annual sunshine hours had one mutation in 1983.The sunshine hours was more in the 1960s and 1970s.In the middle and late periods of 1980s,the sunshine hours was relatively less.[Conclusion]The research provided the guidance value for the adjustment of plantation structure and the transformation of agricultural developed manner in Puyang City.
文摘Introduction:On September 16,2024,the Puyang City CDC received a report of a suspected foodborne disease outbreak involving 14 individuals who developed nausea,vomiting,and diarrhea following attendance at a hotel banquet.Upon notification,the District CDC immediately deployed a specialized investigation team to characterize the epidemiological features of the outbreak,identify the causative pathogen,assess potential transmission risks,and implement effective control and prevention measures.Methods:We integrated comprehensive on-site epidemiological investigations,clinical symptom analyses,and laboratory diagnostics to isolate and identify pathogenic agents from retained food samples,environmental specimens,and anal swabs collected from affected cases.The recovered isolates underwent enterotoxin-virulence-gene profiling,antimicrobialsusceptibility testing,and phylogenetic analyses.Additionally,we characterized the architecture of the enterotoxin-A-linked pathogenicity island vSaβ.Results:A total of 4 S.aureus strains were successfully isolated from 22 leftover food samples,2 environmental swabs,and 2 patient anal swabs.Contaminated donkey and goose meat was identified as the outbreak source.All isolates harbored sea and seb enterotoxin genes,exhibited PEN-OXA-ERY-CLI resistance patterns,and were identified as clonal ST59-spa t441-SCCmec IVa CA-MRSA strains.Phylogenetic analysis positioned the outbreak strains within the Asia-Pacific clade,distinguishing them from the North American ST59 sublineage.Comprehensive analysis of the sea-associated virulence island vSaβidentified a novel structural arrangement containing a type A IEC cluster(sea-sak-chp-scn).Conclusions:The detection of foodborne ST59 CAMRSA clones in this outbreak underscores the prevalence and transmission risks associated with this hypervirulent lineage.These findings emphasize the critical need to strengthen surveillance measures for CA-MRSA among food industry workers.
