correspondence and reprint requests to Robert Thornton, Hedco Neurosciences Building, University of Southern California, Los Angeles, CA 90089-2520. E-mail: thornton@gizmo.usc.edu. PHRASE LENGTH AND INFORMATIONAL CONTENT 2 (1) a. VP1 attachment: She [VP1 taught the sixth and seventh grade kids [VP2 to dive] [PP

season while March and April with wet season. A mean of 2520±7.66 µS/cm for EC, 2.3±0.13 mg/L for DO, 189.66±3.65 mg/L for TSS, 80.90±5.27 mg/L for BOD and 609.3±81.87mg/L for COD were recorded for slaughter-house effluent. The corresponding measurements for the stream water samples were: 5.41± 0.13 mg

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den angegebenen Quellen und Hilfsmitteln angefertigt zu haben. Alle Stellen, die aus Quellen entnommen wurden, sind als solche kenntlich gemacht. Diese Arbeit hat in gleicher oder ähnlicher Form noch keiner Prüfungsbehörde vorgelegen. Darmstadt, den 15.01.2013

The recent discovery of dark energy has prompted an investigation of ways in which the accelerated expansion of the universe can be realized. In this dissertation, we present two separate projects related to dark energy. The first project analyzes a class of braneworld models in which multiple branes float in a five-dimensional anti-de Sitter bulk, while the second investigates a class of dark energy models from an effective field theory perspective. Investigations of models including extra dimensions have led to modifications of gravity involving a number of interesting features. In particular, the Randall-Sundrum model is well-known for achieving an amelioration of the hierarchy problem. However, the basic model relies on Minkowski branes and is subject to solar system constraints in the absence of a radion stabilization mechanism. We present a method by which a four-dimensional low-energy description can be obtained for braneworld scenarios, allowing for a number of generalizations to the original models. This method is applied to orbifolded and uncompactified N-brane models, deriving an effective four-dimensional action. The parameter space of this theory is constrained using observational evidence, and it is found that the generalizations do not weaken solar system constraints on the original model. Furthermore, we find that general

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Building a more sustainable sensor network via protocol innovation