Variational calculation of static and dynamic vibrational nonlinear optical properties

The vibrational configuration interaction method used to obtain static vibrational (hyper)polarizabilities is extended to dynamic nonlinear optical properties in the infinite optical frequency approximation. Illustrative calculations are carried out on H2 O and N H3. The former molecule is weakly anharmonic while the latter contains a strongly anharmonic umbrella mode. The effect on vibrational (hyper)polarizabilities due to various truncations of the potential energy and property surfaces involved in the calculation are examined

Department of Inspections and Appeals, and Department of Elder Affairs -- A Review of the Oversight of Nursing Facilities

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Evolutionary patterns of MHC class II B in owls and their implications for the understanding of avian MHC evolution

Owing to its special mode of evolution and central role in the adaptive immune system, the major histocompatibility complex (MHC) has become the focus of diverse disciplines such as immunology, evolutionary ecology, and molecular evolution. MHC evolution has been studied extensively in diverse vertebrate lineages over the last few decades, and it has been suggested that birds differ from the established mammalian norm. Mammalian MHC genes evolve independently, and duplication history (i.e., orthology) can usually be traced back within lineages. In birds, this has been observed in only 3 pairs of closely related species. Here we report strong evidence for the persistence of orthology of MHC genes throughout an entire avian order. Phylogenetic reconstructions of MHC class II B genes in 14 species of owls trace back orthology over tens of thousands of years in exon 3. Moreover, exon 2 sequences from several species show closer relationships than sequences within species, resembling transspecies evolution typically observed in mammals. Thus, although previous studies suggested that long-term evolutionary dynamics of the avian MHC was characterized by high rates of concerted evolution, resulting in rapid masking of orthology, our results question the generality of this conclusion. The owl MHC thus opens new perspectives for a more comprehensive understanding of avian MHC evolution.

Report on Special Investigation of the City of Bussey Library, For the period July 1, 2003 through March 15, 2004

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Special Investigation of the Iowa Department of Public Health, For the Period July 1, 2001 through February 29, 2004

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Report on Special Investigation of the City of Liscomb, For the Period June 1, 2002 through November 30, 2004

City Audit Report - Special Investigation

Optimum pilot overhead in wireless communication: a unified treatment of continuous and block-fading channels

The optimization of the pilot overhead in wireless fading channels is investigated, and the dependence of this overhead on various system parameters of interest (e.g., fading rate, signal-to-noise ratio) is quantified. The achievable pilot-based spectral efficiency is expanded with respect to the fading rate about the no-fading point, which leads to an accurate order expansion for the pilot overhead. This expansion identifies that the pilot overhead, as well as the spectral efficiency penalty with respect to a reference system with genie-aided CSI (channel state information) at the receiver, depend on the square root of the normalized Doppler frequency. It is also shown that the widely-usedblock fading model is a special case of more accurate continuous fading models in terms of the achievable pilot-based spectral efficiency. Furthermore, it is established that the overhead optimization for multiantenna systems is effectively the same as for single-antenna systems with thenormalized Doppler frequency multiplied by the number of transmit antennas.

Report on Special Investigation of the Rural Iowa Waste Management Association for the Period July 1st, 1999 through October 15th, 2004

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Report on Special Investigation of the City of Valeria, For the Period January 1, 2004 through August 31, 2005

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Report on Special Investigation of the Cedar County Economic Development Commission, For the Period December 1, 2000 through July 31, 2005

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Report on Special Investigation of the Lee County Protective Payee Program, For the Period September 1, 2001 through February 1, 2005

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Report on Special Investigation of the Boone Community School District, For the Period July 1, 2001 through November 30, 2005

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Report on Special Investigation of the City of Reasnor, For the Period of May 1, 2005 through December 31, 2005

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Report on Special Investigation of the City of Ocheyedan, For the Period January 1, 2004 through December 31, 2005

City Audit Report - Special Investigation