Case study research has a long history within the natural sciences, social sciences, and humanities, dating back to the early 1920’s. At first it was a useful way for researchers to make valid inferences from events outside the laboratory in ways consistent with the rigorous practices of investigation inside the lab. Over time, case study approaches garnered interest in multiple disciplines as scholars studied phenomena in context. Despite widespread use, case study research has received little attention among the literature on research strategies.
Few histories of astronomy offer the special human dimension of this book. For the late Professor Pannekoek (University of Amsterdam), the history of astronomy consisted in the growth of man's concept of his world. The study of the cosmos became an essential part of the history of human culture, an adventure of the mind.
New Let's Learn English 3 CD-ROMNew Let's Learn English 3 takes a communicative and topic-based approach to language learning over six levels. It combines a clear 3-step methodology with clear language focus and motivating activities that get students using English confidently. Students learn through a variety of tasks including pairwork, projects, games, acting and songs.
Our first knowledge of differential geometry usually comes from the study of the curves and surfaces in $I!!R^3$ that arise in calculus. Here we learn about line and surface integrals, divergence and curl, and the various forms of Stokes' Theorem. If we are fortunate, we may encounter curvature and such things as the Serret-Frenet formulas. With just the basic tools from multivariable calculus, plus a little knowledge of linear algebra, it is possible to begin a much richer and rewarding study of differential geometry, which is what is presented in this book.
Verb Movement and Expletive Subjects in the Germanic LanguagesThis book is the study of two different kinds of variation across the Germanic languages. One involves the position of the finite verb, and the other the possible positions of the "logical" subject in constructions with expletive (or "dummy") subjects. The book applies the theory of Principles-and-Parameters to the study of comparative syntax. Several languages are considered, including less frequently discussed ones like Danish, Faroese, Icelandic, and Yiddish.
