Lysimachia lanceolata Walter

https://thekeep.eiu.edu/herbarium_specimens_byname/7595/thumbnail.jp

Lysimachia lanceolata Walter

https://thekeep.eiu.edu/herbarium_specimens_byname/7595/thumbnail.jp

The geology of Tarrant County

Accompanied by 2 foldout maps -- Map 1 : Topographic map of the T.C.U. vicinity. Map 2 : Geological map of Tarrant County, Texas. University of Texas bulletin ; no. 1931 : June 1, 1919UT Librarie

Relaying: An Intercropping Approach to the Co-culture of Crawfish and Rice (Bulletin #862)

This study was designed to examine the biological and economic efficacy of relaying crawfish into a growing rice crop in an intercropping manner.https://digitalcommons.lsu.edu/agcenter_bulletins/1041/thumbnail.jp

True Metabolized Energy of Submersed Aquatic Vegetation in Semi-Permanent Marshes for Dabbling Ducks in the Upper Midwest Annual Performance Report Period: 1 July 2015 – 30 June 2016

Our primary objectives were to 1) estimate true metabolizable energy of common species of submersed aquatic vegetation in semi-permanent marsh habitats of the Upper Midwest for gadwall and mallard during autumns 2015–2017, and 2) use current and historic estimates of semi-permanent marsh vegetation communities during autumn within the IRV to document the net change in energetic carrying capacity for dabbling ducks and compare with habitat use by waterfowl using long-term aerial surveys of the Illinois Natural History Survey. We assayed six species of SAV common in the Midwest and that have been previously documented as waterfowl foods: coontail (Ceratophyllum demersum), wild celery (Vallisneria americana), Canadian waterweed (Elodea canadensis), southern naiad (Najas guadalupensis), Eurasian watermilfoil (Myriophyllum spicatum), and sago pondweed (Stuckenia pectinate; Anderson 1959, Stewart 1962, Bergman 1973, Havera 1999, Benedict and Hepp 2000, Hitchcock 2009, Baldassarre 2014). Understanding the energetic value of SAV for dabbling ducks will allow wetland managers to accurately evaluate wetland management practices and conservation planners to develop more accurate energetic carrying capacity models. We predicted that the energetic carrying capacity of semi-permanent marshes containing SAV will be slightly less than if the same wetlands were managed for moist-soil vegetation (Bowyer et al. 2005). We hypothesized that the TME of SAV per unit biomass will be less than that of moist-soil seeds and agricultural grains. Further, we hypothesized that the TME values derived from male and female mallards and between time periods (week of trial) will be similar.United States Fish and Wildlife Service Contract Number: F15AP00687unpublishednot peer reviewedOpe

Laser-modified one- and two-photon absorption:Expanding the scope of optical nonlinearity

It is shown that conventional one-photon and two-photon absorption processes can be made subject to nonlinear optical control, in each case significantly modifying the efficiency of absorption, through the effect of a secondary, off-resonant stimulus laser beam. The mechanistic origin of these laser-modified absorption processes, in which the stimulus beam emerges unchanged, is traced to higher-order terms in standard perturbation treatments. These normally insignificant terms become unusually prominent when the secondary optical stimulus is moderately intense. Employing a quantum formulation, the effects of the stimulus beam on one-photon and two-photon absorption are analyzed, and calculations are performed to determine the degree of absorption enhancement, and the form of spectral manifestation, under various laser intensities. The implications of differences in selection rules are also considered and exemplified, leading to the identification of dark states that can be populated as a result of laser-modified absorption. Attention is also drawn to the possibility of quantum nondemolition measurements, based on such a form of optical nonlinearity

Ramond-Ramond Central Charges in the Supersymmetry Algebra of the Superstring

The free action for the massless sector of the Type II superstring was recently constructed using closed RNS superstring field theory. The supersymmetry transformations of this action are shown to satisfy an N=2 D=10 SUSY algebra with Ramond-Ramond central charges.Comment: 10 pages harvmac te