race, races, racial profiling, racial-segregation, racism, rack stereo, radio, radio-frequency identity, rain, rain began, rajaraman, rajaraman 2004, rand, range, rate, ratio, raymond, re-inifocing the accompanying, reaches, reaching, reaching producers, reaction, reaction-rate, reactions, read, reader, ready, real-estate, reality, really, really does punishment, really does writer, reason, reasoning, reasons, receive, receivers of the arjuna award, recession, recognize, recognized, reconstructs, record, record-keeping, record-label, recursion, recycling, red-blood-cell, redox, reducing, reducing equivalents, reduction, references, referred to as, reflection, reflective, refractive thinking, refreshment, refused, regarded as, region, region delhi, registered nurse, regression, regression-analysis, regular, regulation, reign, related, relation, relationship, relatives, reliable, religion, religious beliefs, remaining, remains, remarks, renaissance, renault, renewable-energy, rents, report, repository, republic, require, required, research, research paper, researcher, residence, resort, resource, resource bacteria, responded, respondents, response, response rate, response true, responses, responsibility, responsible, restaurant, result, results, retail, retailers, retinal, retinal implant, retrieved, retrieved 04 2013, retrieved april, retrieved august, retrieved august 2013, retrieved sept 2005, retrieved sept 2010, return, reveal, revenue, review, revolution, rewards, rfid, rhythm, richard, rick perry, rideau, riding hood, right, right ft, right now there, right-of-way, rights, rising, risk, risk-assessment, river, road, robert, robert schumann, rock, rocky horror, rodney, rodney california king, rodney full, roman, roman catholic, roman empire, roman-empire, romance, romans, romantic relationship management, rome, room, rose, rotor, router, roxie, royal-marines, ruben, rubles, rugged, ruler, rules, rules conduct, russia, ryanair