China’s foreign trade hit a record high in total value in 2024 as the world’s second-largest economy further consolidated its top position globally in goods trade.The nation’s total goods imports and exports in yuan terms reached about$6.1 trillion last year,up 5 percent year on year,according to data released on 13 January by the General Administration of Customs(GAC).
目前主流开源爬虫框架在分析页面与主题领域关联性上,常采用基于关键词的量化和向量空间模型算法相融合,但融合疏忽了界面语义与特定主题间的关联,导致爬取内容与主题产生偏差。为了给金融等领域的舆情分析提供准确的数据支撑,提出一种面向领域扩展主题库的爬虫及系统,通过扩展主题特征库,融合向量空间模型(Vector Space Model,VSM)与超链接主题搜索算法(Hyperlink-Induced Topic Search,HITS),优化了主题页面相关度计算,并针对股票舆情信息爬取进行仿真。结果表明,上述扩展主题型爬虫在爬取准确率和效率等方面有较好地提升,能够有效地完成领域主题信息的爬取任务。
The COVID-19 pandemic has profoundly impacted global health systems,revealing the extensive repercussions of SARS-CoV-2 beyond respiratory symptoms.Indeed,traditionally considered a respiratory virus,SARS-CoV-2’s showcased the ability to target multiple organ systems including pancreas,an organ crucial for regulating blood sugar levels and aiding digestion.
Many young Tibetan collegegraduates long for a stable job in thepublicsector aftergraduation,but Samdrub Norbu is an exception.The23-year-old founder of Yangchak Art has been running a Tibetan guitar business for more than half a year since getting his degree from Xizang University last year.Samdrub Norbu,born to a Tibetan family in Lhokha,dubbed as the birthplace of the Tibetan people and a cradle of Tibetan civilization in the Xizang Autonomous Region,is captivated by Tibetanculture.He has a distinctive dual motive:earning a profit while preservingTibetan musical instrument culture.
The recently published landmark paper by Bergaggio et al.from Roberto Chiarle’s group in Cancer Cell1 investigates an elegant double-hit strategy to improve anti-cancer immunotherapy.This important approach demonstrates in a preclinical model that chimeric antigen receptor(CAR)-T cell treatment can be rendered more efficient by increasing the cell surface expression of the CAR target structure via a small molecule.
For fans of detective shows and the legendary works of Agatha Christie,a new theatrical adaptation of"And Then There Were None"is set to captivate audiences with its thrilling mystery and intricate plot.Known for her masterful storytelling,Agatha Christie's classic whodunit promises suspense,intrigue,and unexpected twists that will keep you on the edge of your seat from start to finish.
