中国数据新闻实践与未来发展趋势研究

本研究采用内容分析法,对2023年全球、中国数据新闻优秀作品进行人工编码,对比分析了全球数据新闻可视化发展现状和中国数据新闻的实践特征。研究发现,当前中国数据新闻作品整体呈现出选题紧跟时事、思想紧跟国家、有数据更有共享、有图表更有内容、有技术更有情怀、有教育更有实践的特点,但也存在国际视野不足、普惠性不强、自采集数据和多源数据交叉运用能力较弱、可视化技术应用程度参差不齐、独立呈现平台搭建与迭代困难等问题。本研究还提出,未来中国数据新闻创作与教学应该在AIGC参与提升生产效率、新闻逻辑性方面着重努力,与生成式人工智能技术全面接轨。

Rodent-mediated plant community competition:what happens to the seeds after entering the adjacent stands?

Background:Seed dispersal by scatter-hoarding animals can affect the developmental dynamics of plant communities.However,how animals might participate in plant inter-community competition has rarely been investigated.Forest community junction is an area where the competition between plant communities is most prominent and animal activity is more frequent.At present,little is known about how scatter-hoarding animals might assist competitions by adjacent plant communities.Thus,for 3 years(2015–2017),we tracked the fate of 2880 tagged seeds(Quercus aliena var.acuteserrata,Pinus tabuliformis,and P.armandii seed)placed near an edge where the forest composition changes from a pine forest to an oak forest in northwestern China.Results:We found that the seed fates differed when Quercus and Pinus seeds entered adjacent stands.In contrast to Pinus seeds,acorns that entered pine forests were characterized by higher caching rates and longer dispersal distances.Pinus seeds had the highest probability of being predated(85%)by rodents,and eleven Q.aliena var.acuteserrata seedlings were established in pine forests,although none survived in the later stages.In addition,rodents exhibited obvious selectivity in terms of the microhabitats for the seed caching sites.Conclusions:Seed fates differed when Quercus and Pinus seeds entered adjacent stands.The predation pressure by rodents on the seeds of Pinus species limited the germination of seeds and seedling establishment in oak forests.The different seed fates after their bidirectional dispersal could affect the differences in natural regeneration between pine and oak forests,and they might increase the recruitment rates for oak at the edge of an adjacent community.Rodent-mediated seed dispersal could potential unintentionally affect the competition between plant communities.

Automated apoptosis identification in fluorescence imaging of nucleus based on histogram of oriented gradients of high-frequency wavelet coefficients

The automatic and accurate identification of apoptosis facilitates large-scale cell analysis.Most identification approaches using nucleus fluorescence imaging are based on specific morphological parameters.However,these parameters cannot completely describe nuclear morphology,thus limiting the identification accuracy of models.This paper proposes a new feature extraction method to improve the performance of the model for apoptosis identification.The proposed method uses a histogram of oriented gradient(HOG)of high-frequency wavelet coefficients to extract internal and edge texture information.The HOG vectors are classified using support vector machine.The experimental results demonstrate that the proposed feature extraction method well performs apoptosis identification,attaining 95:7% accuracy with low cost in terms of time.We confirmed that our method has potential applications to cell biology research.

Resident to exhausted CD4^(+)T cell ratio is associated with the prognosis of gastric cancer

Gastric cancer(GC)ranks fifth for cancer incidence and fourth for mortality globally.1 Clinical outcomes have varied among patients receiving similar treatments at the same stage,suggesting the current prognostic tools remain somewhat flawed.2,3 single-cell analysis of GC data allowed us to dissect transcriptional programs underlying lymphocyte residency and exhaustion.