Called by some, "the theory of everything," superstrings may solve a problem that has eluded physicists for the past 50 years, the final unification of the two great theories of the twentieth century, general relativity and quantum field theory. Now, here is a thoroughly revised, second edition of a course-tested comprehensive introductory graduate text on superstrings which stresses the most current areas of interest, not covered in other presentations, including: - Four-dimensional superstrings - Kac-Moody algebras - Teichm�ller spaces and Calabi-Yau manifolds - M-theory Membranes and D-branes - Duality and BPS relations - Matrix models The book begins with a simple discussion of point particle theory, and uses Feynman path integrals to unify the presentation of superstrings. It has been updated throughout, and three new chapters on M-theory have been added. Prerequisites are an acquaintance with quantum mechanics and relativity.

    Known for its carefully developed, thoroughly integrated, step-by-step approach to problem solving, General Chemistry helps students master quantitative skills and build a lasting conceptual understanding of key chemical concepts. The Ninth Edition retains this hallmark approach and builds upon the conceptual focus through key new features and revisions.

    You can’t fathom the weirdness– unless you’re one of the ER aliens. If you are, buy a dozen copies to give away: to your family, your neighbors, and the PTA. They’ll learn things you never had the heart to tell them, but they should know, like how it's like to work in the ER, the deviousness of shampoo bottles and the dangers of frying bacon naked.

    Provides a review of introductory noncalculus-based physics for those who do not have a strong background in mathematics.

    So poor that their refrigerators were as empty as their dreams. That was until the day Dirty Boy’s best friend suggests a robbery that would end up making them the richest crew in their hood. But, as we all know, sweet licks sometimes come with consequences. When other crews get involved, things go terribly wrong for Dirty Boy. Will he find the snake in his crew before it’s too late? Or will he become a victim of the cold Chicago streets? Only time will tell…

    

    The theory is sound, but something goes wrong, and a highly contagious combination of virus and prion is unleashed, a middle-stage organism too dangerous to test. With emergency services overwhelmed, a small community hospital tries to combat the unthinkable--an illness that causes aggression, spreads through violence, and won’t allow the dead to rest.