Vibrational Spectra of Benzene Derivatives specifically deals with the problems of the vibrational spectra of benzene and its derivatives. The book is divided into three chapters. Chapter 1 explains the concepts of the electronic and electronic-vibration spectra, vibrational spectra, and rotational spectra. Chapter 2 tackles the normal co-ordinate analysis of the benzene molecule; the force field of substituted benzene derivatives; and elementary problems of intensity analysis. Chapter 3 covers the normal vibrations of benzene and its derivatives, which include tangential vibrations; out-of-plane vibrations; and internal vibrations of substituent groups. The book also contains an appendix dedicated for the frequency region of different normal vibrations of benzene derivatives. The text is recommended for chemists who are intrigued with the problems related to the vibrational spectra of benzene derivatives and are in need of a reference book.
The United States deported nearly two million illegal immigrants during the first five years of the Obama presidency—more than during any previous administration. President Obama stands accused by activists of being “deporter in chief.” Yet despite efforts to rebuild what many see as a broken system, the president has not yet been able to convince Congress to pass new immigration legislation, and his record remains rooted in a political landscape that was created long before his election. Deportation numbers have actually been on the rise since 1996, when two federal statutes sought to delegate a portion of the responsibilities for immigration enforcement to local authorities. Policing Immigrants traces the transition of immigration enforcement from a traditionally federal power exercised primarily near the US borders to a patchwork system of local policing that extends throughout the country’s interior. Since federal authorities set local law enforcement to the task of bringing suspected illegal immigrants to the federal government’s attention, local responses have varied. While some localities have resisted the work, others have aggressively sought out unauthorized immigrants, often seeking to further their own objectives by putting their own stamp on immigration policing. Tellingly, how a community responds can best be predicted not by conditions like crime rates or the state of the local economy but rather by the level of conservatism among local voters. What has resulted, the authors argue, is a system that is neither just nor effective—one that threatens the core crime-fighting mission of policing by promoting racial profiling, creating fear in immigrant communities, and undermining the critical community-based function of local policing.
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