A potential giant gallium deposit hosted in the tailing dam of the Fankou Zn-Pb deposit in northern Guangdong Province, South China

1.Objective The Fankou giant zinc(Zn)-lead(Pb)deposit in Guangdong Province is well-known for its huge reserves of over 10 Mt(million ton)Zn+Pb metals and high ore-grade with Zn+Pb exceeding 15%(Guangdong Fankou Deposit Investigation Group,1980;Zhu XY et al.,2017).After 60 years of exploration and exploitation,the deposit has accumulated millions of tons of tailings.One interesting question is that what components are hosted in these tailings,and whether some key and critical metals such as gallium and germanium are extremely enriched and worth further comprehensive utilization.This motivated us to conduct an integrated set of field investigation,sampling,major-trace element analyses and reserve assessments about the Fankou tailings.In this contribution,we discover that the tailings contain a variety of metal elements such as zinc,lead and gallium with comprehensive utilization potential.These data can act as a scientific guidance for further exploration and utilization of the Fankou tailings,and aid to enhance the utilization efficiency of the key mineral resource in China.Our study also provide demonstration for future green mine construction in China.

Suggestions for Promoting China’s Drug Regulatory Agency to Join Pharmaceutical Inspection Co-operation Scheme-PIC/S

Objective To identify and reduce the gap between China’s drug GMP inspection and pharmaceutical inspection co-operation scheme(PIC/S)audit checklist,find out the key improvement items,and revise them pertinently,which will promote the process of China joining PIC/S.Methods The general situation of PIC/S organization and audit checklist were introduced first,and then the accession of several countries that joined the organization was analyzed.Meanwhile,the process of China’s participation in PIC/S was sorted out.After referring to the contents of PIC/S audit checklist,the problems of GMP inspection system in China were studied.Results and Conclusion There are still many problems in GMP inspection in China.Some suggestions are put forward for improvement and change,which can provide reference for the development of drug inspection agencies at all levels in China.

Scale effect of coastal landscape pattern stability and driving forces:a case study of Guangdong Province,China

The long-term dynamic evolution and underlying mechanisms of coastal landscape pattern stability,driven by strong anthropogenic interference and consequently climate change,are topics of major interest in national and international scientific research.Guangdong Province,located in southeastern China,has been undergoing rapid urbanization over several decades.In this study,we quantitatively determined the scale threshold characteristics of coastal landscape pattern stability in Guangdong Province,from the dual perspective of spatial heterogeneity and spatial autocorrelation.An analysis of the spatiotemporal evolution of the coastal landscape was conducted after the optical scale was determined.Then,we applied the geodetector statistical method to quantitatively explore the mechanisms underlying coastal landscape pattern stability.Based on the inflection point of landscape metrics and the maximum value of the MoranⅠindex,the optimal scale for analyzing coastal landscape pattern stability in Guangdong Province was 240 m×240 m.Within the past several decades,coastal landscape pattern stability increased slightly and then decreased,with a turning point around 2005.The most significant variations in coastal landscape pattern stability were observed in the transition zone of rural-urban expansion.A q-statistics analysis showed that the explanatory power of paired factors was greater than that of a single driving factor;the paired factors with the greatest impact on coastal landscape pattern stability in Guangdong Province were the change in gross industrial output and change in average annual precipitation from 2010 to 2015,based on a q value of 0.604.These results will contribute to future efforts to achieve sustainable coastal development and provide a scientific basis and technical support for the rational planning and utilization of resources in large estuarine areas,including marine disaster prevention and seawall ecological restoration.

Mechanism of Guangdong Shenqu in regulating intestinal flora in mice with food stagnation and internal heat based on 16S rDNA sequencing

Objective:To investigate the effect of Guangdong Shenqu(GSQ)on intestinal flora structure in mice with food stagnation through 16S rDNA sequencing.Methods: Mice were randomly assigned to control,model,GSQ low-dose(GSQL),GSQ medium-dose(GSQM),GSQ high-dose(GSQH),and lacidophilin tablets(LAB)groups,with each group containing 10 mice.A food stagnation and internal heat mouse model was established through intragastric administration of a mixture of beeswax and olive oil(1:15).The control group was administered normal saline,and the model group was administered beeswax and olive oil to maintain a state.The GSQL(2 g/kg),GSQM(4 g/kg),GSQH(8 g/kg),and LAB groups(0.625 g/kg)were administered corresponding drugs for 5 d.After administration,16S rDNA sequencing was performed to assess gut microbiota in mouse fecal samples.Results: The model group exhibited significant intestinal flora changes.Following GSQ administration,the abundance and diversity index of the intestinal flora increased significantly,the number of bacterial species was regulated,andαandβdiversity were improved.GSQ administration increased the abundance of probiotics,including Clostridia,Lachnospirales,and Lactobacillus,whereas the abundance of conditional pathogenic bacteria,such as Allobaculum,Erysipelotrichaceae,and Bacteroides decreased.Functional prediction analysis indicated that the pathogenesis of food stagnation and GSQ intervention were primarily associated with carbohydrate,lipid,and amino acid metabolism,among other metabolic pathways.Conclusion: The digestive mechanism of GSQ may be attributed to its role in restoring diversity and abundance within the intestinal flora,thereby improving the composition and structure of the intestinal flora in mice and subsequently influencing the regulation of metabolic pathways.

Zhongshan:Rising Dragon of Guangdong

My journey to Zhongshan City in Guangdong Province alongside experts,foreign correspondents,and local Chinese journalists proved to be an enlightening exploration of the intricacies of China’s development,especially within its smaller cities.While a brief five-day sojourn wasn’t sufficient for intimacy with the city’s entirety,the immersion into Zhongshan’s cultural,historical,and modern facets,including Zhongshan Museum,urban planning zones,business hubs,an industrial park,ancient villages,Dr.Sun Yat-sen Museum,and a monumental bridge project,left me with the impression that the city is awakening like a dragon ascending from the heart of Guangdong.

Research on the Digital Transformation of the Whole Industry Chain of Guangdong Supply and Marketing Cooperative

Guangdong Supply and Marketing Cooperative serves as an important institution for the“Three Rural Areas”in the Guangdong-Hong Kong-Macao Greater Bay Area.Its digital transformation and optimization serve as powerful supports for rural revitalization.This paper systematically reviews the main practices and effectiveness of the digital transformation within the Guangdong Supply and Marketing Cooperative.It also analyzes the current development dilemmas faced in the construction of digital supply and marketing.Additionally,it proposes targeted solutions,including building a big data resource base,optimizing the digital supply and marketing cloud platform,developing digital publictype agricultural social service applications,establishing a new model of rural e-commerce,enhancing the traceability management system for agricultural products,and strengthening the construction of the digital human resources system.These proposals aim to further promote the strategy for revitalizing the countryside.

Application of Traditional Chinese Culture in Cross-Cultural English Education:A Case Study of the Maritime Silk Road in Guangdong Province

The phenomenon of aphasia in Chinese culture is serious.The existing English teaching materials emphasize too much Western culture education and lack traditional Chinese cultural elements.Therefore,this paper takes the Guangdong Maritime Silk Road as an example to study the specific application of traditional Chinese culture in cross-cultural English education.This paper first summarizes the significance of cross-cultural integration into college English education and then points out the serious phenomenon of Chinese cultural aphasia.Next,the paper focuses on English education,using English textbooks as a starting point to explore and integrate strategies related to excellent traditional Chinese culture from the Guangdong Maritime Silk Road.By integrating traditional Chinese culture into business English classes(with the Guangdong Maritime Silk Road as an example),the study explores the influence of such cultural integration on students’cross-cultural communication skills,cultural identity,and learning effects.The results showed that the P value of the experimental group and the control group was<0.05,that is,cultural integration had a positive effect on improving the effect of cross-cultural English education.The overall scores and cultural confidence of the experimental group are higher than those of the control group,which proves that cross-cultural teaching has a positive effect on the improvement of students’scores.

A novel model for extending international co-operation in science and education

In September 1994 the University of Twente, the Netherlands, and Zhejiang University, China, decided to cooperate in the field of science, education and management. After several visits of delegations from both sides it was considered worthwhile to explore further opportunities for mutual cooperation. The directors of international cooperation on each side jointly commissioned a project to investigate the potential in a systematic way and to establish further contacts where appropriate. This paper reports on the results of the research cum matching project. To reveal promising matches between multiple departments of both academic institutions a matching model for uni-versities was designed. The study was carried out along two parallel lines. In the research line the theoretical framework was developed into a model for international university co-operation. Moreover, an analysis was carried out on internal, external and cultural aspects resulting in a set of thirty four influencing factors. In the matching line a total of seventy interviews were held in order to identify promising matches between units at both universities. This line resulted in eleven promising matches for further co-operation. The novel model appeared useful in analyzing the variety of factors and in developing matches between both univer-sities. In the further implementation of the model the issues of 搇evel of co-operation?and 搕op-down versus bottom-up?need to be addressed in more detail.

Impacts of Sea Surface Temperature on the Interannual Variability of Winter Haze Days in Guangdong Province

The impact of sea surface temperature(SST)on winter haze in Guangdong province(WHDGD)was analyzed on the interannual scale.It was pointed out that the northern Indian Ocean and the northwest Pacific SST play a leading role in the variation of WHDGD.Cold(warm)SST anomalies over the northern Indian Ocean and the Northwest Pacific stimulate the eastward propagation of cold(warm)Kelvin waves through the Gill forced response,causing Ekman convergence(divergence)in the western Pacific,inducing abnormal cyclonic(anticyclonic)circulation.It excites the positive(negative)Western Pacific teleconnection pattern(WP),which results in the temperature and the precipitation decrease(increase)in Guangdong and forms the meteorological variables conditions that are conducive(not conducive)to the formation of haze.ENSO has an asymmetric influence on WHDGD.In El Niño(La Niña)winters,there are strong(weak)coordinated variations between the northern Indian Ocean,the northwest Pacific,and the eastern Pacific,which stimulate the negative(positive)phase of WP teleconnection.In El Niño winters,the enhanced moisture is attributed to the joint effects of the horizontal advection from the surrounding ocean,vertical advection from the moisture convergence,and the increased atmospheric apparent moisture sink(Q2)from soil evaporation.The weakening of the atmospheric apparent heat source(Q1)in the upper layer is not conducive to the formation of inversion stratification.In contrast,in La Niña winters,the reduced moisture is attributed to the reduced upward water vapor transport and Q2 loss.Due to the Q1 increase in the upper layer,the temperature inversion forms and suppresses the diffusion of haze.

Suitability evaluation on marine ranching in Guangdong,South China

The ecological suitability of marine resources and environmental conditions for marine ranching in Guangdong,South China was evaluated.Niche theory was used to establish an ecological suitability evaluation model for marine ranching site selection,and suitability evaluation of marine ranching was conducted in.Results show that the ecological suitability index of marine ranching site selection was greater than 64.0 in 20 sites,including offshore Shantou Bay,offshore Zhanjiang Port,and Longdou Bay etc.,which are the priority areas for marine ranching.In other 13 sites,the ecological suitability index ranged between 8.0 and 32.0,including Houjiang Bay,Haimen Bay,and Jieshi Bay etc.,indicating the suitability for marine ranching.However,the ecological suitability index was 0 in Shantou Bay,Zhujiang(Pearl)River estuary,Huangmao Sea,Guanghai Bay,Zhanjiang Port,Qiongzhou Strait,and Anpu Port.These sites are thus unsuitable for marine ranching.This study provides a theoretical basis for site selection and planning of marine ranching in Guangdong Province.

Co-operation on The Roof of the World

A freezing wind sweeps through the narrow Tibetan valley,whistling over the sand,stones and dry grass,buffeting the grazing sheep and the low houses of the tiny village which nestles there at an altitude of 4,600 meters.High overhead white clouds scud across skies of an unimaginably intense cobalt blue.Towards the south,the glistening peak of Everest rises momentarily from amidst the bank of clouds which hover over the barren ochre slopes already in autumnal garb and heralding the onset of winter.The farmers have been busy gathering

Guangdong Tax Services Help Chinese Companies Go Global

“Over the years,China has explored smart taxation driven by data and technology,”said Chen Liexin from the International Taxation Management Division of Guangdong Provincial Tax Service,the State Taxation Administration(STA)of China,during an exchange activity for young tax officers from the BRICS countries of Brazil。

Coupling Analysis of Tourism Development and Rural Revitalization in Yannanfei Tea Field Resort of Guangdong Province

By deconstructing the dimensions of rural tourism and rural revitalization and constructing a coupled conceptual model,a coupled evaluation model is constructed.Yannanfei Tea Field Resort in Guangdong is taken as a research case for empirical analysis,to explore the coupled development trend of the two.The results show that①the tourism development of Guangdong Yannanfei Tea Field Resort has a good synergistic relationship with rural revitalization.The two complement and promote each other,and rural tourism has significantly promoted the development of rural revitalization.②The coupling development of tourism development and rural revitalization in Guangdong Yannanfei Tea Field Resort is divided into coupling imbalance period and coupling coordination period.The results indicate that the coordination between the two has not yet reached a level of good coordination and high-quality coordination.It is recommended that the resort should fully utilize the opportunity of rural revitalization strategy,increase investment in rural tourism,promote the transformation and upgrading of the resort,impel the integration of tea and tourism,and develop new business model of tea-tourism rural vacation.

家用洗涤对莨纱绸织物性能的影响

莨纱绸是利用全天然的原料在自然条件下加工而成,是中国独有的经典丝绸产品。文章研究了家用洗涤对莨纱绸织物性能的影响,以期对莨纱绸织物的服用性能有更深的了解。在洗涤过程中莨纱绸表面的黑胶层对织物的损伤具有保护作用。同等条件下莨纱绸洗后的强力损伤仅为普通丝绸的一半,具有极优异的耐洗涤性能。随着洗涤的进行,莨纱绸正面的黑胶层会逐渐剥落,织物反面的纤维逐渐起绒和原纤化,这有助于莨纱绸与皮肤触感的改善。反复洗涤后,莨纱绸的悬垂性明显提高,克罗值有所下降,紫外线防护性能提高,疏水性能没有明显改变。结果表明,家用洗涤可以改善莨纱绸的手感和服用性能,使其具有越洗越柔软和越洗越凉爽的织物特性。

脑血管疾病风险人群湿证相关特征的流行病学调查

【目的】探究广东地区脑血管疾病风险人群与中医湿证相关的流行病学特征。【方法】采用横断面研究的方法,调查330例广东常住居民脑血管疾病风险相关的临床资料,进行中医湿证诊断、量化评分及脑卒中风险评级,总结湿证分布规律并分析其影响因素。【结果】(1)诊断为湿证的研究对象共306例(占92.73%),风险组诊断为湿证人群的占比为93.82%(258/275),略高于健康组的87.27%(48/55),但差异无统计学意义(χ2=2.91,P=0.112),而风险组的湿证量化得分高于健康组,差异有统计学意义(Z=-2.24,P=0.025)。(2)在具有脑血管疾病危险因素的研究对象中,评价时间(χ2=26.11,P=0.001)、脑卒中风险等级(χ2=8.85,P=0.031)、脑卒中或短暂性脑缺血发作(TIA)病史(χ2=9.28,P=0.015)是脑血管病风险人群湿证等级的影响因素。【结论】湿证是广东地区人群常见的中医证候;具有脑血管疾病危险因素,尤其是脑卒中高风险人群、脑卒中或TIA病史患者,其湿证程度明显增高;未来在广东开展脑卒中预防工作应考虑湿证的评估与干预。

海洋城市战略与空间规划前瞻

党的十八大报告明确提出“建设海洋强国”的战略目标,要求提高海洋资源开发能力,发展海洋经济,保护海洋生态环境,坚决维护国家海洋权益。2023年10月13日,王世福教授作为国家社科基金重大研究专项首席专家以“建设海洋强国的战略支点与制度创新”为主题组织第十二届“设计城市”圆桌研讨会,并邀请来自规划、海洋、国际关系等多个领域的专家,共同探讨海洋城市在海洋命运共同体中的战略支点作用以及空间规划创新需要。在凝练与会嘉宾观点的基础上,进一步以笔谈形式邀请相关领域专家围绕“海洋城市战略与空间规划”进行论述,期望为未来海洋城市规划与建设提供有益参考。王世福认为对于我国海洋城市建设而言,立足港城关系的规划和注重海陆统筹的战略,有助于在全局视角上认识和响应从港口大国到海洋强国的战略跃升。王兴平等提出建设海洋城市组群是内陆城市经略海洋的重要方式,港口城市与腹地陆域中心城市可通过交通设施网络、多种“流要素”、区域涉海功能与跨界协同治理四个维度的一体化措施构建联系密切且分工合理的海洋功能圈。马向明认为海洋城市战略不应仅局限于海洋资源的开发利用,更应从促进海陆文明交流融合的视角出发,积极应对海洋生态挑战,大力发展文化交流和综合创新功能。海洋城市空间规划应强调陆海功能协调性,从而保证海洋城市健康发展。陈天结合海洋城市所面临的可持续发展问题,从海岸生态系统保护的统筹与修复、沿海城市防灾韧性体系构建和基于气候适应性的沿海城市品质提升三方面,提出沿海高密度城市防灾韧性建设与空间品质提升实施路径。王建军系统论述目前海洋城市战略推进过程中存在的痛点和堵点,并从四个层次梳理当前海洋城市战略核心要解决的问题,即开展陆海资源全要素综合调查与评价、构建陆海统筹的海洋城市发展格局、做好向海而强的资源要素保障以及在更广阔的深远海深度参与全球海洋治理。文超祥等以海洋中心城市作为海洋强国的战略支点,提出科学谋划境内外海洋中心城市的战略布局,并结合我国沿海各省市开展的海岸带空间规划实践总结出:处理好陆域与海域关系、协调好城市与区域发展关系、谋划好陆海发展的战略空间。郑斌认为粤港澳大湾区建设世界级新港城对推动大湾区海洋城市发展具有积极意义,并提出在设施建设、制度建设和推动港口与产业融合发展三方面推进大湾区新港城建设,实现海洋城市的国际化和全球化发展。赵渺希认为随着全球经济的区域化趋势日渐发展,应把握全球供应链、价值链的近岸化趋势,拓展新发展格局下沿海地区高水平对外开放的规划原理,并进一步围绕粤港澳大湾区建设,提出厘清大湾区的全球网络链接机制、解析大湾区区域网络协同机制、大湾区双循环网络发展的规划响应。程遥认为陆海统筹规划是一个全域全要素统筹的系统问题,且最终将落实到陆域的功能与设施规划建设上。陆海统筹导向的国土空间规划在陆海域、邻域、海岸带三个层面对应的规划层次、内容、深度应该是差异化的,并且海域应建立相较陆域更系统的跨界规划管控体系和更严格的传导体系。邓昭华提出中国特色海洋强国的建设,可施行“以陆促港”策略,从“港产联动”以固港、“两丝枢纽”以稳港、集聚资源以强港三方面拓展港口腹地纵深,助力港口实现其陆域的现代化,并通过技术输出助力当地工业化与扩大港群布局稳固其腹地根基。郭海认为我国应提出符合自身国情的海洋理论,以海洋作为中国维护国际社会和平稳定的重要手段,以海港作为中国发展海洋战略的重要抓手,并提出需处理好贸易与军事、国家利益与系统利益、外交功能与经贸功能之间的三对矛盾。刘铮认为海洋城市相关规划具有明显的创新型规划特征,提出应进一步开展海洋城市规划创新并实现对创新目标的制度安排,且需从连通性、支撑性、撬动性三方面思考规划创新的突破点,激活海洋城市战略支点作用。

“双高计划”背景下高职院校专业群竞争力评价指标体系构建及应用

在“双高计划”高水平专业群面临终期验收和二次遴选的背景下,聚焦专业群建设成效,采用德尔菲专家咨询和AHP层次分析法构建了包括人才培养、师资队伍、教学改革、产教融合和社会服务5个一级指标、11个二级指标、40个三级指标的高职院校专业群竞争力评价指标体系。以广东省14所“双高计划”高职院校为例进行专业群建设实证分析,既验证了该评价指标体系的实际应用价值,又检验了14所“双高计划”学校目前专业群建设水平,从而从创新人才培养、加强师资队伍建设、深化教学改革、推进产教融合、增强社会服务能力等方面提出“双高计划”高职院校专业群建设策略。

广东省陶瓷行业碳排放配额分配方法初探

陶瓷行业是国民经济和社会发展的重要基础材料,也是我国实现双碳目标的重要工业行业。全国碳市场启动以来,电力行业由广东试点市场转入全国碳市场交易,陶瓷作为高碳排放行业,已经确定作为下一批纳入广东试点市场的行业之一。基于陶瓷企业工艺特点,结合各碳交易试点陶瓷行业配额分配方法,以及广东省陶瓷企业碳排放核算方法和现行其他行业碳排放配额分配方案,采用基准法结合历史强度法或全部采用历史强度法是广东省陶瓷企业碳排放配额的选择方向,同时在配额分配时可以考虑兼顾能源结构优化的鼓励政策。

中小企业“链式”数字化转型的逻辑与实践——以广东为例

“链式”数字化转型是当前推动中小企业数字化转型的热点方向和有效途径。本文以广东省当前开展的产业集群数字化转型工程和省级中小企业数字化转型城市试点工作为背景,分析中小企业开展“链式”数字化转型的内在逻辑,阐述综合考虑技术和商业的转型蓝图,分析供应链模式和产业链模式两种实施路线以及“1+1+N”的组织方式,最后介绍典型的实践案例,为全国推动中小企业数字化转型提供参考。