Dirty hands and clean gloves: Liberal ideals and real politics

Getting Students’ Hands Dirty with Clean-Slate Networking

Conventional networking courses treat today’s protocols and mechanisms as fixed artifacts, rather than as part of a continually evolving system. To prepare students to think critically about Internet architecture, we created a graduate networking course that combines “clean slate” networking research with hands-on experience in analyzing, building, and extending real networks. Our goal was to p...

injective modules and prime ideals

محور اصلی این پایان نامه، r- مدولهای a – انژکتیو می باشد که آنها را به عنوان یک تعمیم از مدول های انژکتیو معرفی می کنیم. در ابتدا مدول های انژکتیو را معرفی کرده، سپس برخی نتایج مهم وشناخته شده مدول های انژکتیو را به مدول های a – انژکتیو تعمیم می دهیم. در ادامه رابطه بین مدول های a – انژکتیو و حلقه های نوتری را بررسی می کنیم. پس هدف کلی این پایان نامه این است که با بررسی انژکتیو بودن ایده آله...

The Lawyer's Dirty Hands

When Liberal Became a Dirty Word 1 1984 : When Liberal Became a Dirty Word

For over a hundred years, the Republican Party used the word “liberal” positively in its platforms and proudly wore the liberal mantle. That may surprise you, but it is true. The finding comes from analyzing words used in all 40 Republican Party presidential year platforms from the party’s origin in 1856 to its 2012 election campaign. In contrast, the 44 Democratic Party platforms staunchly—but...

On Clean Ideals

We introduce the notion of clean ideal, which is a natural generalization of clean rings. It is shown that every matrix ideal over a clean ideal of a ring is clean. Also we prove that every ideal having stable range one of a regular ring is clean. These generalize the corresponding results for clean rings. 1. Introduction. Let R be a unital ring. We say that R is a clean ring in case every elem...