I hold an Amateur Extra class amateur radio (ham) license. My callsign is N2YGN . I am a member of the Columbia University Amateur Radio Club (W2AEE) and the ...

Visit our Data & Figures, Earth Institute and CSAS.org Websites. Sign up for my occasional Communications here. Recent Communications November 21, 2025: Warning! This “Colorful Chart” is Censored by ...

Learn step-by-step how to create a Doodle poll, respond to a poll, edit a poll, schedule a meeting, and create an account.

Rajiv Sethi is a Professor of Economics at Barnard College, Columbia University and an External Professor at the Santa Fe Institute. He was a 2020-21 Joy Foundation Fellow at the Harvard Radcliffe ...

Advancing Columbia’s academic mission depends on strategic and financial planning that provides sufficient resources for both current and future needs, ensuring that the University can support today’s ...

2003 M.S. in Computer Science, University of Wisconsin-Madison 2000 M.S. in Probability and Statistics, Univ of Science and Technology of China 1997 B.S. in Electrical Engineering and Information ...

I am an associate professor in the Barnard-Columbia philosophy department, and department chair of the Barnard side of the department. My research is mainly in the philosophy of language and ...

In French, when speaking in the past tense, one must constantly choose between the imparfait and the passé composé (cf. part I). In this exercise we will focus on cases where both tenses are used in a ...

The primary effect of the Aral Sea desiccation has been the significant loss of water in the sea. The water level has dropped approximately 23 meters since the onset of its primary sources of water ...

Whether the war by means of which the rulers of Spain and our countrymen have brought and are attempting to bring under their domination the barbarian inhabitants, commonly known as Indians, of the ...

The American Language Program is open, without regard to race, creed, color, national origin or sex, to all students who are at least 17 years old. You must enroll in a full-time course (20 hours or ...

olumbia University was founded in 1754 as King’s College by royal charter of King George II of England. It is the oldest institution of higher learning in the state of New York and the fifth oldest in ...