itrogen-containing compounds are essential to life. Their ultimate source is atmo- spheric nitrogen which, by a process known as nitroge. nitrogen fixation, is reduce ced to ammonia, then converted to organic nitrogen compounds. This chapter describes the chemistry of amines, organic derivatives of ammonia. Alkylamines have their nitro- gen attached to sp'-hybridized carbon; arylamines have their nitrogen attached to an sp2-hybridized carbon of a benzene or benzene-like ring

Reversible ligation of Ubiquitin and Ubls to other proteins. Figure by MIT OCW. After Figure 1 in Hochstrasser M. Evolution and function of ubiquitin-like protein-conjugation systems. Nat Cell Biol. 2000 Aug:

Every field of study has its own terminology Mathematics axioms integrals vector spaces Psychology

16.1 Introduction 16.2 The retrovirus life cycle involves transposition-like events 16.3 Retroviral genes codes for polyproteins 16.4 Viral DNA is generated by reverse transcription 16.5 Viral DNA integrates into the chromosome 16.6 Retroviruses may transduce cellular sequences 16.7 Yeast Ty elements resemble retroviruses 16.8 Many transposable elements reside in D. melanogaster 16.9 Retroposons fall into two classes 16.10 The Alu family has many widely dispersed members

Ann Richards: 1988 Democratic National Convention Keynote Address Thank you. Thank you. Thank you, very much. Good evening, ladies and gentlemen. Buenas noches, mis amigos. I'm delighted to be here with you this evening, because after listening to George Bush all these years, I figured you needed to know what a real Texas accent sounds like

Good evening, my fellow Americans. First, I should like to express my gratitude to the radio and television networks for the opportunities they have given me over the years to bring reports and messages to our nation. My special thanks go to them for the opportunity of addressing you this evening. Three days f rom now, af ter a half century in the service of our country, I shall lay down the responsibilities of of fice as, in traditional and solemn ceremony, the authority of the Presidency is vested in my successor. This evening I come to you with a message of leave-taking and farewell, and to

Outline The Economist as Scientist The Economist as Policy Adviser Why Economists disagree

disease, you should have it timely The desire for good health is univer As for me, I have always been taking sal. Especially nowadays, the possession care to have proper sleep and relaxation. of good health is regarded by nearly every have also been alert to any discomfort in one as essential to a happy life as well as a body. In my spare time I like run

Passage 1 According to the new school of scientists, technology is an overlooked force in expanding the horizons of scientific knowledge. 71) Science moves forward, they say, not so much through the insights of great men of genius as because of more ordinary things like improved techniques and tools.72) \In short\, a leader of the new school contends, \the scientific revolution

The analysis of merge sort fromLecture 1 required us to solve arecurrence. Recurrences are like solving integrals,differential equations, etc.o Learn a few tricks