Scientific American November 2023

Kaplan's MCAT Physics and Math Review 2022–2023 offers an expert study plan, detailed subject review, and hundreds of online and in-book practice questions—all authored by the experts behind the MCAT prep course that has helped more people get into medical school than all other major courses combined.

Kaplan's MCAT General Chemistry Review 2022–2023 offers an expert study plan, detailed subject review, and hundreds of online and in-book practice questions—all authored by the experts behind the MCAT prep course that has helped more people get into medical school than all other major courses combined.

This book presents the main results of the 19th Latin American Congress of Automatic Control held in November 2022 in Havana, Cuba. The Congress showed several main research results obtained by researchers from diverse countries in the last four years.

In the late nineteenth century, Chinese reformers and revolutionaries believed that there was something fundamentally wrong with the Chinese writing system. The Chinese characters, they argued, were too cumbersome to learn, blocking the channels of communication, obstructing mass literacy, and impeding scientific progress. What had sustained a civilization for more than two millennia was suddenly recast as the root cause of an ongoing cultural suicide. China needed a new script to survive in the modern world.