This paper focuses on the practice of building ceramics industry in Foshan City in the clean energy transition from coal to gas,and discusses the challenges and solutions in the transition process.As an important base...This paper focuses on the practice of building ceramics industry in Foshan City in the clean energy transition from coal to gas,and discusses the challenges and solutions in the transition process.As an important base of China’s building ceramics industry,Foshan City’s energy transformation is of great importance to regional energy security and environmental protection.This paper summarizes the practical background and effect of Foshan’s energy transformation and points out the challenges in the process of natural gas supply stability,technological renewal,and market competition.By comparing the experience of coal to gas at home and abroad,the paper summarizes the enlightenment of policy promotion,technological innovation,and upstream and downstream cooperation in the industrial chain.Based on this,the paper puts forward policy suggestions on strengthening policy support and supervision,promoting technological innovation,and research and development.Finally,it emphasizes the importance of promoting energy transformation to Foshan’s sustainable development and puts forward practical solutions.展开更多
Under the guidance of national policies,the“coal to gas”project has become one of the important measures to promote the transformation of energy structure in China.Foshan,an important industrial town in Guangdong pr...Under the guidance of national policies,the“coal to gas”project has become one of the important measures to promote the transformation of energy structure in China.Foshan,an important industrial town in Guangdong province,the implementation of the“coal to gas”policy has demonstrated significance for the optimization of the national energy structure.Through the analysis of the change in Foshan’s energy consumption structure and the implementation of the policy,this paper found that there were some challenges in the policy implementation process,such as high economic cost,lagging infrastructure,low social acceptance,and lack of technical personnel.To address this,suggestions are put forward,including increasing financial subsidies,improving laws and regulations,promoting technological innovation,and encouraging social inclusion policies.These recommendations aim to provide guidance and reference for the remaining“coal to gas”projects and the development of clean energy.展开更多
To adapt to national climate change strategies,understanding the thermal vulnerability of urban functional zones(UFZs)is critical for enhancing the livability and sustainable development of cities.We address the limit...To adapt to national climate change strategies,understanding the thermal vulnerability of urban functional zones(UFZs)is critical for enhancing the livability and sustainable development of cities.We address the limitations of existing thermal vulnerability assessments by incorporating human perception into the analysis.Specifically,we introduce the sky openness index to reflect human perception of the thermal environment and examine variations in thermal vulnerability across different UFZs.Using the Extreme Gradient Boosting(XGBoost)-SHapley Additive exPlanations(SHAP)model,we analyze the contributions of 2D and 3D urban form indicators to thermal vulnerability and link these contributions to the unique needs and vulnerability characteristics of UFZs of Foshan City,China in 2023.The results reveal that:1)high-value heat-fragile areas(1.74–2.00]constitute 10.42%of Foshan City;2)traffic zone and publiccommercial zone exhibit the highest levels of thermal vulnerability;and 3)building height and the normalized building index are the most influential factors,with contributions of|0.06|and|0.03|,respectively.We provide a scientific foundation for developing governance strategies to promote urban resilience.展开更多
On basis of “3414” experiment, regression analysis was conducted on rel- ative yield and fertilizer quant;.ty, and a regression equation was established, as fol- lows： Y=I 699,09 ＋52.89N -3i82P ＋59.27K-1.17N2 -0....On basis of “3414” experiment, regression analysis was conducted on rel- ative yield and fertilizer quant;.ty, and a regression equation was established, as fol- lows： Y=I 699,09 ＋52.89N -3i82P ＋59.27K-1.17N2 -0.11 p2 ＋0.06K2 ＋2.02NP-2.16NK- 1.97PK （FF=0,98）. The results of regression analysis showed F〉F0.05, indicating that fertilizer quantity is of significant regression relationship with yield. It was analyzed that yield-increasing range of N fertilizer was directly proportional to fertilizer quanti- ty, and negative yield even occurs if excessive P fertilizer is applied. In general, fertilizer effects from high to low were N fertilizer〉K ferUlizer〉P fertilizer. Besides, on equation aralysls, it was proposed the optimal fertilizer quantities included N fertilizer （N） of 270 kg, P fertilizer （PUs） of 165 kg and K fertilizer （K20） of 225 kg for achieving ideal yield of 2 500 kg/hm2 of luffa in Foshan. Key words Foshan; Luffa; Index system of fertilization; Efficiency analysis展开更多
[Objectives]The study aims to provide important reference for the breeding and research of new varieties of functional broad-shoulder bitter gourd.[Methods]8 pure varieties of local broad-shoulder bitter gourd landrac...[Objectives]The study aims to provide important reference for the breeding and research of new varieties of functional broad-shoulder bitter gourd.[Methods]8 pure varieties of local broad-shoulder bitter gourd landraces in Foshan were used as experimental materials,in which polysaccharide,cellulose and vitamin C content were measured.[Results]Among the 8 varieties of local self-selected broad-shoulder bitter gourd in Foshan,the polysaccharide content of Foxuan 6 was the highest,up to 113.78 mg/100 (g·FW),which was significantly higher than that of the other 7 varieties.The polysaccharide content of Foxuan 2 was the lowest.The cellulose content of Foxuan 8 was the highest,reaching 24.50 mg/100 (g·FW),which was significantly higher than that of the other 7 varieties.The cellulose content of Foxuan 4 was the lowest.The vitamin C content of Foxuan 5 was the highest,reaching 74.24 mg/100 (g·FW),which was significantly higher than that of the other 7 varieties.The vitamin C content of Foxuan 4 was the lowest,only 7.05 mg/100 (g·FW).In a word,there were big differences between the 8 varieties of broad-shoulder bitter gourd in terms of polysaccharide,cellulose and vitamin C content.[Conclusions]It is possible to make full use of their own quality differences and develop new varieties of functional broad-shoulder bitter gourd by means of cross combination.展开更多
50 new generation of migrant workers were randomly chosen from Yanbu Town which is in Nanhai district,Foshan city, Gua ngdong Province.They were asked to complete the questionnaires about the awareness of interact new...50 new generation of migrant workers were randomly chosen from Yanbu Town which is in Nanhai district,Foshan city, Gua ngdong Province.They were asked to complete the questionnaires about the awareness of interact new words.The statistics show that the average awareness of new generation of migrant workers on interact new words is low as a whole. The reasons may lie in workers＇ overtime working ,relatively closed working environment, low social status,low income and education level and so on.展开更多
On November 17–18, the 2018 Academic Annual Meeting of China Society of Cryospheric Science was held successfully in Foshan City, Guangdong Province. In the context of global warming, the cryosphere is undergoing sig...On November 17–18, the 2018 Academic Annual Meeting of China Society of Cryospheric Science was held successfully in Foshan City, Guangdong Province. In the context of global warming, the cryosphere is undergoing significant changes and has major impacts on global and regional ecosystems and socio-economic sustainability. In order to further promote the development process of China’s cryosphere science, strengthen the exchanges between scientific research personnel in different sectors and fields, further condense the scientific research team of the cryosphere science, explore the new development directions of the cryosphere science, and展开更多
Guangdong＇ s Foshan paper-cutting art is significantly related with the local folk culture and religion, with unique craflwork as well as rich subjects. In the present paper, the characteristics of subjects was analy...Guangdong＇ s Foshan paper-cutting art is significantly related with the local folk culture and religion, with unique craflwork as well as rich subjects. In the present paper, the characteristics of subjects was analyzed in detail based on the relationship between Foshan papercutting and local folk religion, folk activities and folk cultural activities. It is suggested that subjects of Foshan paper-cutting is strongly affected by the coast and regional culture as well as widely affected by the coastal culture especially foreign culture. Foshan paper-cutting is the typical example for studying folk custom life of Lingnan area because of the rich subjects.展开更多
Foshan city of Guangdong province,who enjoys the reputation of Ceramics’Capital in South China is one of the largest and most important ceramic production bases in China.Foshan ceramic works of art have a long histor...Foshan city of Guangdong province,who enjoys the reputation of Ceramics’Capital in South China is one of the largest and most important ceramic production bases in China.Foshan ceramic works of art have a long history and have a great influence in the whole country.In this paper,we try to change the design of the simple historical figure,zodiac animal image and vase purely for daily necessities.To enrich the theoretical results of Foshan ceramic doll art research,Foshan ceramic doll insists taste-oriented design so as to further strengthen the research of interesting design,better adapt to the psychological needs of the audience,create the popular literary and artistic works,lead to the improvement of people’s consuming taste,and finally promote the construction of social spiritual civilization and the development of cultural industry in Foshan.展开更多
The flawed engineering practice is considered the main factor that is affecting to the development quality of engineering postgraduates.Taking Foshan Base as an example,this paper has analyzed the operational pattern,...The flawed engineering practice is considered the main factor that is affecting to the development quality of engineering postgraduates.Taking Foshan Base as an example,this paper has analyzed the operational pattern,practice teaching model,and internal governance system of the open-ended base as a new system for engineering practice and proposed several suggestions for the reformation of engineering postgraduates based on the construction effect.展开更多
Chikungunya fever(CF)is caused by chikungunya virus(CHIKV),which is transmitted to humans through the bites of infected female Aedes mosquitoes.CHIKV has been documented in over 110 countries across Asia,Africa,Europe...Chikungunya fever(CF)is caused by chikungunya virus(CHIKV),which is transmitted to humans through the bites of infected female Aedes mosquitoes.CHIKV has been documented in over 110 countries across Asia,Africa,Europe,and the Americas(1).China reported its first imported case of CF in 2008.Between 2010 and 2019,local outbreaks resulting from imported cases were documented in Guangdong(2),Zhejiang(3),and Yunnan provinces(4).On July 9,2025,Foshan City,Guangdong Province reported a cluster of CF cases.As of July 26,a total of 4,824 confirmed cases had been reported(5)across 12 prefecture-level cities in Guangdong,with 4,754 cases(98.5%)occurring in Foshan and 70 cases(1.5%)distributed among the other 11 prefectures.The majority of cases were concentrated in Shunde District of Foshan,which accounted for 4,208 cases(87.2%of all provincial cases).展开更多
Introduction:Chikungunya virus(CHIKV),an arthropod-borne alphavirus transmitted by Aedes aegypti and Aedes albopictus,causes fever,severe joint pain,and rash.By 2025,it has triggered outbreaks in 119 countries,endange...Introduction:Chikungunya virus(CHIKV),an arthropod-borne alphavirus transmitted by Aedes aegypti and Aedes albopictus,causes fever,severe joint pain,and rash.By 2025,it has triggered outbreaks in 119 countries,endangering 5.5 million people.Recent epidemics in Foshan,China,have strained healthcare systems,underscoring the need to characterize viral load dynamics across infection phases.Methods:We collected 1,156 clinical samples from four Foshan hospitals in July 2025,spanning 6 days before to 12 days after symptom onset.Specimens included serum(904 valid),saliva(22),urine(4),throat swabs(3),and stool(37).CHIKV RNA was quantified via qRT-PCR;timepoints and specimen types with insufficient samples were excluded.Results:Serum showed the highest positivity(90%),followed by saliva(68%),throat swabs(15%),and urine(11%);stool was negative(0%).Serum also had the highest viral loads,confirming its optimal utility.Viral RNA was detectable as early as 1 day presymptom onset(day-1).Days 0–7 post-onset marked explosive replication and elevated loads,representing the optimal sampling window.From Day 8 onward,loads declined,requiring IgG testing to avoid false negatives.Conclusions:Serum is the gold standard for acute CHIKV diagnosis,with superior positivity and viral loads.Pre-symptomatic viral shedding(day-1)supports enhanced port-of-entry screening to intercept imported cases.Days 0–7 post-onset is the optimal sampling window for acute infection.During clearance(day 8+),IgG testing complements molecular diagnostics to reduce gaps.These findings inform evidence-based diagnosis,outbreak control,and resource allocation.展开更多
Background:Triatomines,also known as kissing bugs,which are found throughout the world and especially in Latin America,are well known natural vectors that transmit American trypanosomiasis,also called Chagas disease.I...Background:Triatomines,also known as kissing bugs,which are found throughout the world and especially in Latin America,are well known natural vectors that transmit American trypanosomiasis,also called Chagas disease.In China,the presence of two species of Triatoma(Triatoma rubrofasciata and T.sinica)was recorded in the past.Due to the growing population and the increasing risk of the global spread of Chagas disease,triatomines became a potential public health nuisance,and in 2016,we started monitoring triatomine activities in southern China.Methods:Triatomine specimens were collected by the National Institute of Parasitic Diseases,Chinese Center for Disease Control and Prevention,and identified by their morphological characteristics under a dissecting microscope.In addition to morphological analysis,the genomic DNA of the specimens was extracted,and the mitochondrial 16S rRNA,the cytochrome b(CytB)gene and the nuclear ribosomal 28S rRNA gene were PCRamplified to analyze and confirm the species genetically.Results:One female adult insect and one male adult insect were collected in a dwelling in the rural area of Shunde County,Foshan City,Guangdong Province,China(22°42′44.63″N,113°08′45.34″E).The results from the morphological and genetic analyses indicated that these triatomines were T.rubrofasciata.Conclusions:This is the first time that the occurrence of T.rubrofasciata has been confirmed in Foshan City,Guangdong Province in southern China.Further studies are needed to reach a clearer understanding of the ecology of this species of triatomine,since it has been found to be naturally infected by Trypanosoma cruzi and T.conorhini and there is evidence of its domiciliation capabilities.展开更多
An index system for evaluation of technologies for urban river rehabilitation was proposed and discussed.The index system includes indicators of cost,resources,environmental improvement,and social effects.The calculat...An index system for evaluation of technologies for urban river rehabilitation was proposed and discussed.The index system includes indicators of cost,resources,environmental improvement,and social effects.The calculation method for an objective value of each index based on its attributes and weights was presented.The Foshan Channel,which is a seriously polluted,black and malodorous urban river in Foshan City,China,was selected as a case study.The values of the attributes and the weights of the indices for the Foshan Channel were determined.The technologies for the rehabilitation of the Foshan Channel were evaluated based on this index system.Finally,a rehabilitation scheme for the Foshan Channel was proposed.展开更多
Objective To study the iodine nutritional status ofpregnant women in Foshan City,Guangdong Province,and to provide basis for iodine supplementation scientificallyfor them. Methods In 2017, five districtsChancheng,Nanh...Objective To study the iodine nutritional status ofpregnant women in Foshan City,Guangdong Province,and to provide basis for iodine supplementation scientificallyfor them. Methods In 2017, five districtsChancheng,Nanhai,Shunde,Sanshui and Gaoming inFoshan were selected. Each monitoring site was dividedinto five sections according to stratified random samplingin five directions: east,west,south,north and middle.One township (street) was taken in each section,and 20pregnant women were taken from each township( street)to detected their family salt iodine and urinary iodine levels.Results A total of 500 edible salt samples were collectedfrom the families of pregnant women,the medianof salt iodine was 24. 8 mg /kg,the qualified iodized saltconsumption rate was 95. 8% (479 /500),and the iodizedsalt coverage rate was 99. 0% (495 /500).展开更多
Practice Makes Perfect.Dragon boat race participants prepare for an upcoming competition through night training in Diejiao Township of Foshan,south China’s Guangdong Province on May 14,2025.
文摘This paper focuses on the practice of building ceramics industry in Foshan City in the clean energy transition from coal to gas,and discusses the challenges and solutions in the transition process.As an important base of China’s building ceramics industry,Foshan City’s energy transformation is of great importance to regional energy security and environmental protection.This paper summarizes the practical background and effect of Foshan’s energy transformation and points out the challenges in the process of natural gas supply stability,technological renewal,and market competition.By comparing the experience of coal to gas at home and abroad,the paper summarizes the enlightenment of policy promotion,technological innovation,and upstream and downstream cooperation in the industrial chain.Based on this,the paper puts forward policy suggestions on strengthening policy support and supervision,promoting technological innovation,and research and development.Finally,it emphasizes the importance of promoting energy transformation to Foshan’s sustainable development and puts forward practical solutions.
文摘Under the guidance of national policies,the“coal to gas”project has become one of the important measures to promote the transformation of energy structure in China.Foshan,an important industrial town in Guangdong province,the implementation of the“coal to gas”policy has demonstrated significance for the optimization of the national energy structure.Through the analysis of the change in Foshan’s energy consumption structure and the implementation of the policy,this paper found that there were some challenges in the policy implementation process,such as high economic cost,lagging infrastructure,low social acceptance,and lack of technical personnel.To address this,suggestions are put forward,including increasing financial subsidies,improving laws and regulations,promoting technological innovation,and encouraging social inclusion policies.These recommendations aim to provide guidance and reference for the remaining“coal to gas”projects and the development of clean energy.
基金Under the auspices of Liaoning Revitalization Talents Program(No.XLYC2202024)Basic Scientific Research Project(Key Project)of the Education Department of Liaoning Province(No.LJ212410165084)the Fundamental Research Funds for the Central Universities(No.N2111003,N2411001)。
文摘To adapt to national climate change strategies,understanding the thermal vulnerability of urban functional zones(UFZs)is critical for enhancing the livability and sustainable development of cities.We address the limitations of existing thermal vulnerability assessments by incorporating human perception into the analysis.Specifically,we introduce the sky openness index to reflect human perception of the thermal environment and examine variations in thermal vulnerability across different UFZs.Using the Extreme Gradient Boosting(XGBoost)-SHapley Additive exPlanations(SHAP)model,we analyze the contributions of 2D and 3D urban form indicators to thermal vulnerability and link these contributions to the unique needs and vulnerability characteristics of UFZs of Foshan City,China in 2023.The results reveal that:1)high-value heat-fragile areas(1.74–2.00]constitute 10.42%of Foshan City;2)traffic zone and publiccommercial zone exhibit the highest levels of thermal vulnerability;and 3)building height and the normalized building index are the most influential factors,with contributions of|0.06|and|0.03|,respectively.We provide a scientific foundation for developing governance strategies to promote urban resilience.
基金Supported by High-efficient Cultivation Technology System Construction Project of Characteristic Vegetable in Foshan([2015]12)Special Fund of Minstry of Agriculture(201503106)~~
文摘On basis of “3414” experiment, regression analysis was conducted on rel- ative yield and fertilizer quant;.ty, and a regression equation was established, as fol- lows： Y=I 699,09 ＋52.89N -3i82P ＋59.27K-1.17N2 -0.11 p2 ＋0.06K2 ＋2.02NP-2.16NK- 1.97PK （FF=0,98）. The results of regression analysis showed F〉F0.05, indicating that fertilizer quantity is of significant regression relationship with yield. It was analyzed that yield-increasing range of N fertilizer was directly proportional to fertilizer quanti- ty, and negative yield even occurs if excessive P fertilizer is applied. In general, fertilizer effects from high to low were N fertilizer〉K ferUlizer〉P fertilizer. Besides, on equation aralysls, it was proposed the optimal fertilizer quantities included N fertilizer （N） of 270 kg, P fertilizer （PUs） of 165 kg and K fertilizer （K20） of 225 kg for achieving ideal yield of 2 500 kg/hm2 of luffa in Foshan. Key words Foshan; Luffa; Index system of fertilization; Efficiency analysis
基金Supported by Agricultural Science and Technology Promotion Project of Foshan City in 2018-2019 "Study on Purification and Protective Cultivation Techniques of Local Characteristic Crop Varieties in Foshan"
文摘[Objectives]The study aims to provide important reference for the breeding and research of new varieties of functional broad-shoulder bitter gourd.[Methods]8 pure varieties of local broad-shoulder bitter gourd landraces in Foshan were used as experimental materials,in which polysaccharide,cellulose and vitamin C content were measured.[Results]Among the 8 varieties of local self-selected broad-shoulder bitter gourd in Foshan,the polysaccharide content of Foxuan 6 was the highest,up to 113.78 mg/100 (g·FW),which was significantly higher than that of the other 7 varieties.The polysaccharide content of Foxuan 2 was the lowest.The cellulose content of Foxuan 8 was the highest,reaching 24.50 mg/100 (g·FW),which was significantly higher than that of the other 7 varieties.The cellulose content of Foxuan 4 was the lowest.The vitamin C content of Foxuan 5 was the highest,reaching 74.24 mg/100 (g·FW),which was significantly higher than that of the other 7 varieties.The vitamin C content of Foxuan 4 was the lowest,only 7.05 mg/100 (g·FW).In a word,there were big differences between the 8 varieties of broad-shoulder bitter gourd in terms of polysaccharide,cellulose and vitamin C content.[Conclusions]It is possible to make full use of their own quality differences and develop new varieties of functional broad-shoulder bitter gourd by means of cross combination.
文摘50 new generation of migrant workers were randomly chosen from Yanbu Town which is in Nanhai district,Foshan city, Gua ngdong Province.They were asked to complete the questionnaires about the awareness of interact new words.The statistics show that the average awareness of new generation of migrant workers on interact new words is low as a whole. The reasons may lie in workers＇ overtime working ,relatively closed working environment, low social status,low income and education level and so on.
文摘On November 17–18, the 2018 Academic Annual Meeting of China Society of Cryospheric Science was held successfully in Foshan City, Guangdong Province. In the context of global warming, the cryosphere is undergoing significant changes and has major impacts on global and regional ecosystems and socio-economic sustainability. In order to further promote the development process of China’s cryosphere science, strengthen the exchanges between scientific research personnel in different sectors and fields, further condense the scientific research team of the cryosphere science, explore the new development directions of the cryosphere science, and
文摘Guangdong＇ s Foshan paper-cutting art is significantly related with the local folk culture and religion, with unique craflwork as well as rich subjects. In the present paper, the characteristics of subjects was analyzed in detail based on the relationship between Foshan papercutting and local folk religion, folk activities and folk cultural activities. It is suggested that subjects of Foshan paper-cutting is strongly affected by the coast and regional culture as well as widely affected by the coastal culture especially foreign culture. Foshan paper-cutting is the typical example for studying folk custom life of Lingnan area because of the rich subjects.
基金2015 Foshan Social Science Project(No.QN192015).
文摘Foshan city of Guangdong province,who enjoys the reputation of Ceramics’Capital in South China is one of the largest and most important ceramic production bases in China.Foshan ceramic works of art have a long history and have a great influence in the whole country.In this paper,we try to change the design of the simple historical figure,zodiac animal image and vase purely for daily necessities.To enrich the theoretical results of Foshan ceramic doll art research,Foshan ceramic doll insists taste-oriented design so as to further strengthen the research of interesting design,better adapt to the psychological needs of the audience,create the popular literary and artistic works,lead to the improvement of people’s consuming taste,and finally promote the construction of social spiritual civilization and the development of cultural industry in Foshan.
基金supported by Guangdong Province Graduate Education Innovation Program(2021JGXM103)the 2020“Research on Talents”Project by the Guangdong Planning Office of Philosophy and Social Science.
文摘The flawed engineering practice is considered the main factor that is affecting to the development quality of engineering postgraduates.Taking Foshan Base as an example,this paper has analyzed the operational pattern,practice teaching model,and internal governance system of the open-ended base as a new system for engineering practice and proposed several suggestions for the reformation of engineering postgraduates based on the construction effect.
文摘Chikungunya fever(CF)is caused by chikungunya virus(CHIKV),which is transmitted to humans through the bites of infected female Aedes mosquitoes.CHIKV has been documented in over 110 countries across Asia,Africa,Europe,and the Americas(1).China reported its first imported case of CF in 2008.Between 2010 and 2019,local outbreaks resulting from imported cases were documented in Guangdong(2),Zhejiang(3),and Yunnan provinces(4).On July 9,2025,Foshan City,Guangdong Province reported a cluster of CF cases.As of July 26,a total of 4,824 confirmed cases had been reported(5)across 12 prefecture-level cities in Guangdong,with 4,754 cases(98.5%)occurring in Foshan and 70 cases(1.5%)distributed among the other 11 prefectures.The majority of cases were concentrated in Shunde District of Foshan,which accounted for 4,208 cases(87.2%of all provincial cases).
基金Supported by the Guangdong Provincial Center for Disease Control and Prevention Supports Talent Projects(0720240122)the Guangdong Provincial Key Laboratory of Pathogen Detection for Emerging Infectious Disease Response(2023B1212010010).
文摘Introduction:Chikungunya virus(CHIKV),an arthropod-borne alphavirus transmitted by Aedes aegypti and Aedes albopictus,causes fever,severe joint pain,and rash.By 2025,it has triggered outbreaks in 119 countries,endangering 5.5 million people.Recent epidemics in Foshan,China,have strained healthcare systems,underscoring the need to characterize viral load dynamics across infection phases.Methods:We collected 1,156 clinical samples from four Foshan hospitals in July 2025,spanning 6 days before to 12 days after symptom onset.Specimens included serum(904 valid),saliva(22),urine(4),throat swabs(3),and stool(37).CHIKV RNA was quantified via qRT-PCR;timepoints and specimen types with insufficient samples were excluded.Results:Serum showed the highest positivity(90%),followed by saliva(68%),throat swabs(15%),and urine(11%);stool was negative(0%).Serum also had the highest viral loads,confirming its optimal utility.Viral RNA was detectable as early as 1 day presymptom onset(day-1).Days 0–7 post-onset marked explosive replication and elevated loads,representing the optimal sampling window.From Day 8 onward,loads declined,requiring IgG testing to avoid false negatives.Conclusions:Serum is the gold standard for acute CHIKV diagnosis,with superior positivity and viral loads.Pre-symptomatic viral shedding(day-1)supports enhanced port-of-entry screening to intercept imported cases.Days 0–7 post-onset is the optimal sampling window for acute infection.During clearance(day 8+),IgG testing complements molecular diagnostics to reduce gaps.These findings inform evidence-based diagnosis,outbreak control,and resource allocation.
基金This work was supported by the National Key Research and Development Program of China(grant No.2016YFC1202000,No.2016YFC1202002).
文摘Background:Triatomines,also known as kissing bugs,which are found throughout the world and especially in Latin America,are well known natural vectors that transmit American trypanosomiasis,also called Chagas disease.In China,the presence of two species of Triatoma(Triatoma rubrofasciata and T.sinica)was recorded in the past.Due to the growing population and the increasing risk of the global spread of Chagas disease,triatomines became a potential public health nuisance,and in 2016,we started monitoring triatomine activities in southern China.Methods:Triatomine specimens were collected by the National Institute of Parasitic Diseases,Chinese Center for Disease Control and Prevention,and identified by their morphological characteristics under a dissecting microscope.In addition to morphological analysis,the genomic DNA of the specimens was extracted,and the mitochondrial 16S rRNA,the cytochrome b(CytB)gene and the nuclear ribosomal 28S rRNA gene were PCRamplified to analyze and confirm the species genetically.Results:One female adult insect and one male adult insect were collected in a dwelling in the rural area of Shunde County,Foshan City,Guangdong Province,China(22°42′44.63″N,113°08′45.34″E).The results from the morphological and genetic analyses indicated that these triatomines were T.rubrofasciata.Conclusions:This is the first time that the occurrence of T.rubrofasciata has been confirmed in Foshan City,Guangdong Province in southern China.Further studies are needed to reach a clearer understanding of the ecology of this species of triatomine,since it has been found to be naturally infected by Trypanosoma cruzi and T.conorhini and there is evidence of its domiciliation capabilities.
基金the Programme of Introducing Talents of Discipline to Universities(No.B07002)the National Water Pollution Control Special Project(No.2008ZX07313-006).
文摘An index system for evaluation of technologies for urban river rehabilitation was proposed and discussed.The index system includes indicators of cost,resources,environmental improvement,and social effects.The calculation method for an objective value of each index based on its attributes and weights was presented.The Foshan Channel,which is a seriously polluted,black and malodorous urban river in Foshan City,China,was selected as a case study.The values of the attributes and the weights of the indices for the Foshan Channel were determined.The technologies for the rehabilitation of the Foshan Channel were evaluated based on this index system.Finally,a rehabilitation scheme for the Foshan Channel was proposed.
文摘Objective To study the iodine nutritional status ofpregnant women in Foshan City,Guangdong Province,and to provide basis for iodine supplementation scientificallyfor them. Methods In 2017, five districtsChancheng,Nanhai,Shunde,Sanshui and Gaoming inFoshan were selected. Each monitoring site was dividedinto five sections according to stratified random samplingin five directions: east,west,south,north and middle.One township (street) was taken in each section,and 20pregnant women were taken from each township( street)to detected their family salt iodine and urinary iodine levels.Results A total of 500 edible salt samples were collectedfrom the families of pregnant women,the medianof salt iodine was 24. 8 mg /kg,the qualified iodized saltconsumption rate was 95. 8% (479 /500),and the iodizedsalt coverage rate was 99. 0% (495 /500).
文摘Practice Makes Perfect.Dragon boat race participants prepare for an upcoming competition through night training in Diejiao Township of Foshan,south China’s Guangdong Province on May 14,2025.
