“…The contributions collected in this volume seek to answer some of these questions, taking into account different countries, from France to Russia, from the United States to China. In a time like ours, where much is said about the public use of history, the relationship between historical research, teaching and dissemination remains a fundamental theme…”

“…Excitons, as part of the InTech collection of international works on optics and optoelectronics, contains recent achievements of specialists from China, France, Japan, Switzerland, and Moldova jointly with Russia and the United States of America on properties and application of excitons in electronics. …”

“…Indeed, they soon spread throughout European Universities and Colleges and even arrived to South American territories, as well as China, thanks to its several Chinese translations or adaptations published as soon as the 17th Century…”

“…Over the ten-year Outlook period, agricultural markets are projected to remain weak, with growth in China weakening and biofuel policies having less impact on markets than in the past. …”

“…The countries examined are Brazil, Chile, China, Cuba, the Czech Republic, the Dominican Republic, Guatemala, Honduras, Israel, Kenya, Korea, Mexico, Nicaragua, Pakistan, Panama, Thailand and Vietnam. …”

“…Also, the study briefly highlights Chinese public expenditure issues more generally and presents some key indicators on the dynamics of ageing populations which will have consequences for future social expenditure trends in China…”

“…It is our great pleasure to publish the conference proceedings of 2020 12th International Conference on Machine Learning and Computing (ICMLC 2020) which was held in Shenzhen, China, during February 15-17, 2020. It brings together researchers, scientists, academics and engineers in the fields from different countries, and enables discussions and debates of relevant issues, challenges, opportunities and research findings. …”