Photos of federal officers descending on a Los Angeles park as residents and mayor watch How to hard boil eggs without using water White House Rose Garden disappears ...

Chronic kidney disease (CKD) is a global public health issue, with high prevalence and mortality. As cystatin C is a biomarker for the early diagnosis of CKD, there is an urgent need to develop a ...

This paper connects the title and abstract of the book for topic mining, uses TF-IDF algorithm to extract keywords after word segmentation by jieba, and realizes personalized book recommendation ...

Multishelled binary metal oxide, which can exert a synergetic effect of different oxides, is a promising electrochemical electrode material. However, it is challenging to synthesize this kind of ...