In China, 10 ethnic minorities with a combined population of over 20 million people are followers of Islam. In Ningxia Hui Autonomous Region, the population is nearly 6 million, a-mong which the Islamic population is ...In China, 10 ethnic minorities with a combined population of over 20 million people are followers of Islam. In Ningxia Hui Autonomous Region, the population is nearly 6 million, a-mong which the Islamic population is about 2 million. In China as a whole, more than 20 million people enjoy eating food prepared according to Islamic guidelines, known as hal'al food.展开更多
Geologic time is an important dimension in geological research.Geologic time data are commonly collected from multiple sources in data-intensive studies of Earth’s history and raise an issue of data cleansing and int...Geologic time is an important dimension in geological research.Geologic time data are commonly collected from multiple sources in data-intensive studies of Earth’s history and raise an issue of data cleansing and integration.A knowledge graph of the international geological time scale has been established to harmonize heterogeneous data to facilitate effective and efficient data-driven discovery.Although many regional geologic time standards are also used in various databases and literature,there is limited discussion or development of knowledge graph for them.In this research,we construct a knowledge graph for the geologic time standards in 17 regions at the Epoch and Age levels.This regional geologic time knowledge graph is integrated with the international geologic time knowledge graph as a comprehensive deep-time knowledge base.A SPARQL endpoint has been established to provide open and free online service to the knowledge base.Several use cases are presented here to demonstrate the functionality of the knowledge graph we built as well as its application in open data exploration.Our work addresses the shortage of machine-readable knowledge graphs for regional geologic time standards and will help accelerate geologic data integration from multiple sources in data-intensive studies.All data and code in this paper are made open source and are accessible on GitHub and Zenodo.展开更多
Objective The extent of lymph node dissection for pancreatic head cancer(PHC)is uncertain and controversial;therefore,this study evaluated whether PHC patients can benefit from different extents of lymph node dissecti...Objective The extent of lymph node dissection for pancreatic head cancer(PHC)is uncertain and controversial;therefore,this study evaluated whether PHC patients can benefit from different extents of lymph node dissection.Methods A total of 106 PHC patients underwent standard regional lymphadenectomy(SRLN;n=56,52.8%)and extended regional lymphadenectomy(ERLN;n=50,47.2%)between September 2015 and September 2019.None of the study participants had distant metastases.The median survival time and complications were compared between the two groups.Results The median survival time in the SRLN and ERLN groups was 27.01 months and 21.17 months,respectively(P=0.30).The postoperative major morbidity and mortality rates were 37.50%and 1.79%in the SRLN group,and 46.00%and 2.00%in the ERLN group,respectively.Moreover,the tumor differentiation,tumor diameter,lymph node involvement,perineural invasion,vascular invasion,and margin status all correlated with survival(P<0.05).Conclusion For PHC patients,ERLN cannot provide a significant survival benefit over SRLN.Moreover,ERLN increased morbidity and mortality,although without statistical significance.This indicates that ERLN should not be considered in PHC patients.展开更多
文摘In China, 10 ethnic minorities with a combined population of over 20 million people are followers of Islam. In Ningxia Hui Autonomous Region, the population is nearly 6 million, a-mong which the Islamic population is about 2 million. In China as a whole, more than 20 million people enjoy eating food prepared according to Islamic guidelines, known as hal'al food.
基金supported by the National Science Foundation,United States(No.1835717).
文摘Geologic time is an important dimension in geological research.Geologic time data are commonly collected from multiple sources in data-intensive studies of Earth’s history and raise an issue of data cleansing and integration.A knowledge graph of the international geological time scale has been established to harmonize heterogeneous data to facilitate effective and efficient data-driven discovery.Although many regional geologic time standards are also used in various databases and literature,there is limited discussion or development of knowledge graph for them.In this research,we construct a knowledge graph for the geologic time standards in 17 regions at the Epoch and Age levels.This regional geologic time knowledge graph is integrated with the international geologic time knowledge graph as a comprehensive deep-time knowledge base.A SPARQL endpoint has been established to provide open and free online service to the knowledge base.Several use cases are presented here to demonstrate the functionality of the knowledge graph we built as well as its application in open data exploration.Our work addresses the shortage of machine-readable knowledge graphs for regional geologic time standards and will help accelerate geologic data integration from multiple sources in data-intensive studies.All data and code in this paper are made open source and are accessible on GitHub and Zenodo.
文摘Objective The extent of lymph node dissection for pancreatic head cancer(PHC)is uncertain and controversial;therefore,this study evaluated whether PHC patients can benefit from different extents of lymph node dissection.Methods A total of 106 PHC patients underwent standard regional lymphadenectomy(SRLN;n=56,52.8%)and extended regional lymphadenectomy(ERLN;n=50,47.2%)between September 2015 and September 2019.None of the study participants had distant metastases.The median survival time and complications were compared between the two groups.Results The median survival time in the SRLN and ERLN groups was 27.01 months and 21.17 months,respectively(P=0.30).The postoperative major morbidity and mortality rates were 37.50%and 1.79%in the SRLN group,and 46.00%and 2.00%in the ERLN group,respectively.Moreover,the tumor differentiation,tumor diameter,lymph node involvement,perineural invasion,vascular invasion,and margin status all correlated with survival(P<0.05).Conclusion For PHC patients,ERLN cannot provide a significant survival benefit over SRLN.Moreover,ERLN increased morbidity and mortality,although without statistical significance.This indicates that ERLN should not be considered in PHC patients.
