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2017

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Ogle-2016-Blg-0613labb: A Microlensing Planet In A Binary System, C. Han, A. Udalski, A. Gould, C. U. Lee, Y. Shvartzvald, W. C. Zang, S. Mao, S. Kozłowski, M. D. Albrow, S. J. Chung, K. H. Hwang, Y. K. Jung, D. Kim, H. W. Kim, Y. H. Ryu, I. G. Shin, J. C. Yee, W. Zhu, S. M. Cha, S. L. Kim, D. J. Kim, Y. Lee, B. G. Park, J. Skowron, P. Mróz, P. Pietrukowicz, R. Poleski, M. K. Szymański, I. Soszyński, K. Ulaczyk, M. Pawlak, C. Beichman, G. Bryden Dec 2017

Ogle-2016-Blg-0613labb: A Microlensing Planet In A Binary System, C. Han, A. Udalski, A. Gould, C. U. Lee, Y. Shvartzvald, W. C. Zang, S. Mao, S. Kozłowski, M. D. Albrow, S. J. Chung, K. H. Hwang, Y. K. Jung, D. Kim, H. W. Kim, Y. H. Ryu, I. G. Shin, J. C. Yee, W. Zhu, S. M. Cha, S. L. Kim, D. J. Kim, Y. Lee, B. G. Park, J. Skowron, P. Mróz, P. Pietrukowicz, R. Poleski, M. K. Szymański, I. Soszyński, K. Ulaczyk, M. Pawlak, C. Beichman, G. Bryden

Faculty Publications

We present the analysis of OGLE-2016-BLG-0613, for which the lensing light curve appears to be that of a typical binary-lens event with two caustic spikes but with a discontinuous feature on the trough between the spikes. We find that the discontinuous feature was produced by a planetary companion to the binary lens. We find four degenerate triple-lens solution classes, each composed of a pair of solutions according to the well-known wide/close planetary degeneracy. One of these solution classes is excluded due to its relatively poor fit. For the remaining three pairs of solutions, the most-likely primary mass is about , …

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Single-Shot Measurement Of The Orbital-Angular-Momentum Spectrum Of Light, Girish Kulkarni, Rishabh Sahu, Omar S. Magaña-Loaiza, Robert W. Boyd, Anand K. Jha Dec 2017

Single-Shot Measurement Of The Orbital-Angular-Momentum Spectrum Of Light, Girish Kulkarni, Rishabh Sahu, Omar S. Magaña-Loaiza, Robert W. Boyd, Anand K. Jha

Faculty Publications

The existing methods for measuring the orbital-angular-momentum (OAM) spectrum suffer from issues such as poor efficiency, strict interferometric stability requirements, and too much loss. Furthermore, most techniques inevitably discard part of the field and measure only a post-selected portion of the true spectrum. Here, we propose and demonstrate an interferometric technique for measuring the true OAM spectrum of optical fields in a single-shot manner. Our technique directly encodes the OAM-spectrum information in the azimuthal intensity profile of the output interferogram. In the absence of noise, the spectrum can be fully decoded using a single acquisition of the output interferogram, and, …

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Effects Of Transients In Ligo Suspensions On Searches For Gravitational Waves, M. Walker, T. D. Abbott, S. M. Aston, G. González, D. M. Macleod, J. Mciver, B. P. Abbott, R. Abbott, C. Adams, R. X. Adhikari, S. B. Anderson, A. Ananyeva, S. Appert, K. Arai, S. W. Ballmer, D. Barker, B. Barr, L. Barsotti, J. Bartlett, I. Bartos, J. C. Batch, A. S. Bell, J. Betzwieser, G. Billingsley, J. Birch, S. Biscans, C. Biwer, C. D. Blair, R. Bork, A. F. Brooks, G. Ciani, F. Clara, S. T. Countryman Dec 2017

Effects Of Transients In Ligo Suspensions On Searches For Gravitational Waves, M. Walker, T. D. Abbott, S. M. Aston, G. González, D. M. Macleod, J. Mciver, B. P. Abbott, R. Abbott, C. Adams, R. X. Adhikari, S. B. Anderson, A. Ananyeva, S. Appert, K. Arai, S. W. Ballmer, D. Barker, B. Barr, L. Barsotti, J. Bartlett, I. Bartos, J. C. Batch, A. S. Bell, J. Betzwieser, G. Billingsley, J. Birch, S. Biscans, C. Biwer, C. D. Blair, R. Bork, A. F. Brooks, G. Ciani, F. Clara, S. T. Countryman

Faculty Publications

This paper presents an analysis of the transient behavior of the Advanced LIGO (Laser Interferometer Gravitational-wave Observatory) suspensions used to seismically isolate the optics. We have characterized the transients in the longitudinal motion of the quadruple suspensions during Advanced LIGO's first observing run. Propagation of transients between stages is consistent with modeled transfer functions, such that transient motion originating at the top of the suspension chain is significantly reduced in amplitude at the test mass. We find that there are transients seen by the longitudinal motion monitors of quadruple suspensions, but they are not significantly correlated with transient motion above …

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An Elevation Of 0.1 Light-Seconds For The Optical Jet Base In An Accreting Galactic Black Hole System, P. Gandhi, M. Bachetti, V. S. Dhillon, R. P. Fender, L. K. Hardy, F. A. Harrison, S. P. Littlefair, J. Malzac, S. Markoff, T. R. Marsh, K. Mooley, D. Stern, J. A. Tomsick, D. J. Walton, P. Casella, F. Vincentelli, D. Altamirano, J. Casares, C. Ceccobello, P. A. Charles, C. Ferrigno, R. I. Hynes, C. Knigge, E. Kuulkers, M. Pahari, F. Rahoui, D. M. Russell, A. W. Shaw Dec 2017

An Elevation Of 0.1 Light-Seconds For The Optical Jet Base In An Accreting Galactic Black Hole System, P. Gandhi, M. Bachetti, V. S. Dhillon, R. P. Fender, L. K. Hardy, F. A. Harrison, S. P. Littlefair, J. Malzac, S. Markoff, T. R. Marsh, K. Mooley, D. Stern, J. A. Tomsick, D. J. Walton, P. Casella, F. Vincentelli, D. Altamirano, J. Casares, C. Ceccobello, P. A. Charles, C. Ferrigno, R. I. Hynes, C. Knigge, E. Kuulkers, M. Pahari, F. Rahoui, D. M. Russell, A. W. Shaw

Faculty Publications

Relativistic plasma jets are observed in many systems that host accreting black holes. According to theory, coiled magnetic fields close to the black hole accelerate and collimate the plasma, leading to a jet being launched 1-3. Isolating emission from this acceleration and collimation zone is key to measuring its size and understanding jet formation physics. But this is challenging because emission from the jet base cannot easily be disentangled from other accreting components. Here, we show that rapid optical flux variations from an accreting Galactic black-hole binary are delayed with respect to X-rays radiated from close to the black hole …

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Search For High-Energy Neutrinos From Binary Neutron Star Merger Gw170817 With Antares, Icecube, And The Pierre Auger Observatory, A. Albert, M. André, M. Anghinolfi, M. Ardid, J. J. Aubert, J. Aublin, T. Avgitas, B. Baret, J. Barrios-Martí, S. Basa, B. Belhorma, V. Bertin, S. Biagi, R. Bormuth, S. Bourret, M. C. Bouwhuis, H. Brânzaş, R. Bruijn, J. Brunner, J. Busto, A. Capone, L. Caramete, J. Carr, S. Celli, R. Cherkaoui El Moursli, T. Chiarusi, M. Circella, J. A.B. Coelho, A. Coleiro, R. Coniglione, H. Costantini, P. Coyle, A. Creusot Dec 2017

Search For High-Energy Neutrinos From Binary Neutron Star Merger Gw170817 With Antares, Icecube, And The Pierre Auger Observatory, A. Albert, M. André, M. Anghinolfi, M. Ardid, J. J. Aubert, J. Aublin, T. Avgitas, B. Baret, J. Barrios-Martí, S. Basa, B. Belhorma, V. Bertin, S. Biagi, R. Bormuth, S. Bourret, M. C. Bouwhuis, H. Brânzaş, R. Bruijn, J. Brunner, J. Busto, A. Capone, L. Caramete, J. Carr, S. Celli, R. Cherkaoui El Moursli, T. Chiarusi, M. Circella, J. A.B. Coelho, A. Coleiro, R. Coniglione, H. Costantini, P. Coyle, A. Creusot

Faculty Publications

The Advanced LIGO and Advanced Virgo observatories recently discovered gravitational waves from a binary neutron star inspiral. A short gamma-ray burst (GRB) that followed the merger of this binary was also recorded by the Fermi Gamma-ray Burst Monitor (Fermi-GBM), and the Anti-Coincidence Shield for the Spectrometer for the International Gamma-Ray Astrophysics Laboratory (INTEGRAL), indicating particle acceleration by the source. The precise location of the event was determined by optical detections of emission following the merger. We searched for high-energy neutrinos from the merger in the GeV-EeV energy range using the Antares, IceCube, and Pierre Auger Observatories. No neutrinos directionally coincident …

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Nearly Optimal Measurement Schemes In A Noisy Mach-Zehnder Interferometer With Coherent And Squeezed Vacuum, Bryan T. Gard, Chenglong You, Devendra K. Mishra, Robinjeet Singh, Hwang Lee, Thomas R. Corbitt, Jonathan P. Dowling Dec 2017

Nearly Optimal Measurement Schemes In A Noisy Mach-Zehnder Interferometer With Coherent And Squeezed Vacuum, Bryan T. Gard, Chenglong You, Devendra K. Mishra, Robinjeet Singh, Hwang Lee, Thomas R. Corbitt, Jonathan P. Dowling

Faculty Publications

The use of an interferometer to perform an ultra-precise parameter estimation under noisy conditions is a challenging task. Here we discuss nearly optimal measurement schemes for a well known, sensitive input state, squeezed vacuum and coherent light. We find that a single mode intensity measurement, while the simplest and able to beat the shot-noise limit, is outperformed by other measurement schemes in the low-power regime. However, at high powers, intensity measurement is only outperformed by a small factor. Specifically, we confirm, that an optimal measurement choice under lossless conditions is the parity measurement. In addition, we also discuss the performance …

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On The Progenitor Of Binary Neutron Star Merger Gw170817, B. P. Abbott, R. Abbott, T. D. Abbott, F. Acernese, K. Ackley, C. Adams, T. Adams, P. Addesso, R. X. Adhikari, V. B. Adya, C. Affeldt, M. Afrough, B. Agarwal, M. Agathos, K. Agatsuma, N. Aggarwal, O. D. Aguiar, L. Aiello, A. Ain, P. Ajith, B. Allen, G. Allen, A. Allocca, P. A. Altin, A. Amato, A. Ananyeva, S. B. Anderson, W. G. Anderson, S. V. Angelova, S. Antier, S. Appert, K. Arai, M. C. Araya Dec 2017

On The Progenitor Of Binary Neutron Star Merger Gw170817, B. P. Abbott, R. Abbott, T. D. Abbott, F. Acernese, K. Ackley, C. Adams, T. Adams, P. Addesso, R. X. Adhikari, V. B. Adya, C. Affeldt, M. Afrough, B. Agarwal, M. Agathos, K. Agatsuma, N. Aggarwal, O. D. Aguiar, L. Aiello, A. Ain, P. Ajith, B. Allen, G. Allen, A. Allocca, P. A. Altin, A. Amato, A. Ananyeva, S. B. Anderson, W. G. Anderson, S. V. Angelova, S. Antier, S. Appert, K. Arai, M. C. Araya

Faculty Publications

On 2017 August 17 the merger of two compact objects with masses consistent with two neutron stars was discovered through gravitational-wave (GW170817), gamma-ray (GRB 170817A), and optical (SSS17a/AT 2017gfo) observations. The optical source was associated with the early-type galaxy NGC 4993 at a distance of just ∼40 Mpc, consistent with the gravitational-wave measurement, and the merger was localized to be at a projected distance of ∼2 kpc away from the galaxy's center. We use this minimal set of facts and the mass posteriors of the two neutron stars to derive the first constraints on the progenitor of GW170817 at the …

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Estimating The Contribution Of Dynamical Ejecta In The Kilonova Associated With Gw170817, B. P. Abbott, R. Abbott, T. D. Abbott, F. Acernese, K. Ackley, C. Adams, T. Adams, P. Addesso, R. X. Adhikari, V. B. Adya, C. Affeldt, M. Afrough, B. Agarwal, M. Agathos, K. Agatsuma, N. Aggarwal, O. D. Aguiar, L. Aiello, A. Ain, P. Ajith, B. Allen, G. Allen, A. Allocca, P. A. Altin, A. Amato, A. Ananyeva, S. B. Anderson, W. G. Anderson, S. V. Angelova, S. Antier, S. Appert, K. Arai, M. C. Araya Dec 2017

Estimating The Contribution Of Dynamical Ejecta In The Kilonova Associated With Gw170817, B. P. Abbott, R. Abbott, T. D. Abbott, F. Acernese, K. Ackley, C. Adams, T. Adams, P. Addesso, R. X. Adhikari, V. B. Adya, C. Affeldt, M. Afrough, B. Agarwal, M. Agathos, K. Agatsuma, N. Aggarwal, O. D. Aguiar, L. Aiello, A. Ain, P. Ajith, B. Allen, G. Allen, A. Allocca, P. A. Altin, A. Amato, A. Ananyeva, S. B. Anderson, W. G. Anderson, S. V. Angelova, S. Antier, S. Appert, K. Arai, M. C. Araya

Faculty Publications

The source of the gravitational-wave (GW) signal GW170817, very likely a binary neutron star merger, was also observed electromagnetically, providing the first multi-messenger observations of this type. The two-week-long electromagnetic (EM) counterpart had a signature indicative of an r-process-induced optical transient known as a kilonova. This Letter examines how the mass of the dynamical ejecta can be estimated without a direct electromagnetic observation of the kilonova, using GW measurements and a phenomenological model calibrated to numerical simulations of mergers with dynamical ejecta. Specifically, we apply the model to the binary masses inferred from the GW measurements, and use the resulting …

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Gradients In Wall Mechanics And Polysaccharides Along Growing Inflorescence Stems, Pyae Phyo, Tuo Wang, Sarah N. Kiemle, Hugh O’Neill, Sai Venkatesh Pingali, Mei Hong, Daniel J. Cosgrove Dec 2017

Gradients In Wall Mechanics And Polysaccharides Along Growing Inflorescence Stems, Pyae Phyo, Tuo Wang, Sarah N. Kiemle, Hugh O’Neill, Sai Venkatesh Pingali, Mei Hong, Daniel J. Cosgrove

Faculty Publications

© 2017 American Society of Plant Biologists. All Rights Reserved. At early stages of Arabidopsis (Arabidopsis thaliana) flowering, the inflorescence stem undergoes rapid growth, with elongation occurring predominantly in the apical; 4 cm of the stem. We measured the spatial gradients for elongation rate, osmotic pressure, cell wall thickness, and wall mechanical compliances and coupled these macroscopic measurements with molecular-level characterization of the polysaccharide composition, mobility, hydration, and intermolecular interactions of the inflorescence cell wall using solid-state nuclear magnetic resonance spectroscopy and small-angle neutron scattering. Force-extension curves revealed a gradient, from high to low, in the plastic and elastic compliances …

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Polyamorphic Transformations In Fe-Ni-C Liquids: Implications For Chemical Evolution Of Terrestrial Planets, Xiaojing Lai, Bin Chen, Jianwei Wang, Yoshio Kono, Feng Zhu Dec 2017

Polyamorphic Transformations In Fe-Ni-C Liquids: Implications For Chemical Evolution Of Terrestrial Planets, Xiaojing Lai, Bin Chen, Jianwei Wang, Yoshio Kono, Feng Zhu

Faculty Publications

©2017. American Geophysical Union. All Rights Reserved. During the formation of the Earth's core, the segregation of metallic liquids from silicate mantle should have left behind evident geochemical imprints on both the mantle and the core. Some distinctive geochemical signatures of the mantle-derived rocks likely own their origin to the metal-silicate differentiation of the primitive Earth, setting our planet apart from undifferentiated meteorites as well as terrestrial planets or moons isotopically and compositionally. Understanding the chemical evolution of terrestrial planetary bodies requires knowledge on properties of both liquid iron alloys and silicates equilibrating under physicochemical conditions pertinent to the deep …

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Species Identification Of Vagrant Empidonax Flycatchers In Northeastern North America Via Non-Invasive Dna Sequencing, Nathan R. Goldberg, Nicholas A. Mason Dec 2017

Species Identification Of Vagrant Empidonax Flycatchers In Northeastern North America Via Non-Invasive Dna Sequencing, Nathan R. Goldberg, Nicholas A. Mason

Faculty Publications

Vagrant individuals from cryptic species complexes pose a persistent challenge for accurate species identification, hindering our understanding of vagrancy in these taxa. Here, we used non-invasive sampling of fecal matter to sequence the ND2 mitochondrial gene of 2 vagrant western flycatchers observed in northeastern North America. The DNAsequence data we recovered from these vagrants fell within a clade of known Empidonax difficillis (Pacific-slope Flycatcher) haplotypes. Our work provides robust records of 2 vagrant Pacific-slope Flycatchers in the northeastern US. These findings illustrate the power of non-invasive sampling for species identification of vagrants from cryptic species complexes.

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The Phylogeny Of Heliconia (Heliconiaceae) And The Evolution Of Floral Presentation, William J.D. Iles, Chodon Sass, Laura Lagomarsino, Gracie Benson-Martin, Heather Driscoll, Chelsea D. Specht Dec 2017

The Phylogeny Of Heliconia (Heliconiaceae) And The Evolution Of Floral Presentation, William J.D. Iles, Chodon Sass, Laura Lagomarsino, Gracie Benson-Martin, Heather Driscoll, Chelsea D. Specht

Faculty Publications

© 2016 Elsevier Inc. Heliconia (Heliconiaceae, order Zingiberales) is among the showiest plants of the Neotropical rainforest and represent a spectacular co-evolutionary radiation with hummingbirds. Despite the attractiveness and ecological importance of many Heliconia, the genus has been the subject of limited molecular phylogenetic studies. We sample seven markers from the plastid and nuclear genomes for 202 samples of Heliconia. This represents ca. 75% of accepted species and includes coverage of all taxonomic subgenera and sections. We date this phylogeny using fossils associated with other families in the Zingiberales; in particular we review and evaluate the Eocene fossil Ensete oregonense. …

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Effect Of Silicate Slag Application On Wheat Grown Under Two Nitrogen Rates, Brandon White, Brenda S. Tubana, Tapasya Babu, Henry Mascagni, Flavia Agostinho, Lawrence E. Datnoff, Steve Harrison Dec 2017

Effect Of Silicate Slag Application On Wheat Grown Under Two Nitrogen Rates, Brandon White, Brenda S. Tubana, Tapasya Babu, Henry Mascagni, Flavia Agostinho, Lawrence E. Datnoff, Steve Harrison

Faculty Publications

Field studies were established on the alluvial floodplain soils in Louisiana, from 2013 to 2015, to evaluate the effect of silicate slag applications on productivity of wheat (Triticum aestivum), under sufficient and high nitrogen (N) application rates. Treatments were arranged in a randomized complete block design, with four replications consisting of twelve treatments: a factorial combination of two N (101 and 145 kg N ha-1) and five silicate slag rates (0, 1, 2, 4.5, and 9 Mg ha-1), and two control plots (with and without lime). Nitrogen had a greater impact on wheat productivity than silicate slag application. Wheat grain …

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Incorporating Flaxseed (Linum Usitatissimum) Oil Into Queso Blanco At Different Stages Of The Cheese Manufacturing Process, Cristhiam Gurdian, Vondel Reyes, Emmanuel Kyereh, Franklin Bonilla, Cesar Galindo, Alexander Chouljenko, Kevin Mis Solval, Charles Boeneke, Joan M. King, Subramaniam Sathivel Dec 2017

Incorporating Flaxseed (Linum Usitatissimum) Oil Into Queso Blanco At Different Stages Of The Cheese Manufacturing Process, Cristhiam Gurdian, Vondel Reyes, Emmanuel Kyereh, Franklin Bonilla, Cesar Galindo, Alexander Chouljenko, Kevin Mis Solval, Charles Boeneke, Joan M. King, Subramaniam Sathivel

Faculty Publications

The objective of this study was to evaluate the physicochemical and microbial properties of queso blanco (QB) with flaxseed oil (FO) incorporated at different stages of the cheese manufacturing process. Whole milk was homogenized, coagulated with citric acid, salted with NaCl, and the resulting curds were pressed. Then QBFO was produced by incorporating FO during homogenization (QBFO-H), coagulation (QBFO-C), or salting (QBFO-S). The cheeses were stored at 8 °C for 30 days. Significantly lower lipid oxidation in QB was observed when FO was added during coagulation or salting compared to homogenization. However, lipid oxidation values of QBFO-H did not exceed …

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Comparison Of Five Methods For Parameter Estimation Under Taylor's Power Law, Peijian Shi, David A. Ratkowsky, Ningtao Wang, Yang Li, Lei Zhao, Gadi V.P. Reddy, Bai Lian Li Dec 2017

Comparison Of Five Methods For Parameter Estimation Under Taylor's Power Law, Peijian Shi, David A. Ratkowsky, Ningtao Wang, Yang Li, Lei Zhao, Gadi V.P. Reddy, Bai Lian Li

Faculty Publications

Taylor's power law (TPL) can be applied to the mean-variance relationship for various quantities, e.g., population densities over space and time, biomass of plants in the growth processes, developmental rates and growth rates of arthropods at different temperatures, etc. When TPL holds in the grouped data (e.g., the biomass of plants at different investigation times with limited replicates at each investigation), we must consider the heterocedasticity when carrying out the parameter estimation for a given mathematical model. We propose two new target functions based on TPL and attempt to more accurately estimate the model parameter(s). By capturing the mean-variance relationship, …

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Evaluation Of Trap Crops For The Management Of Wireworms In Spring Wheat In Montana, Ashish Adhikari, Gadi V.P. Reddy Dec 2017

Evaluation Of Trap Crops For The Management Of Wireworms In Spring Wheat In Montana, Ashish Adhikari, Gadi V.P. Reddy

Faculty Publications

The polyphagous larvae of click beetles (Coleoptera: Elateridae) are major pests of spring wheat in Montana, USA. Presently available insecticides are unable to provide control over wireworm populations, and the use of natural enemies has not been successful under field conditions. In this study, we examined the effect of seven trap crops: pea, lentil, canola, corn, durum, barley, and wheat, for their attractiveness to wireworms compared to spring wheat. Experimental plots were located in two commercial grain fields in Valier and Ledger, Montana, USA and the trials took place from May to August in 2015 and 2016. Wheat plants damaged …

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Mechanism And Dna-Based Detection Of Field-Evolved Resistance To Transgenic Bt Corn In Fall Armyworm (Spodoptera Frugiperda), Rahul Banerjee, James Hasler, Robert Meagher, Rodney Nagoshi, Lucas Hietala, Fangneng Huang, Kenneth Narva, Juan Luis Jurat-Fuentes Dec 2017

Mechanism And Dna-Based Detection Of Field-Evolved Resistance To Transgenic Bt Corn In Fall Armyworm (Spodoptera Frugiperda), Rahul Banerjee, James Hasler, Robert Meagher, Rodney Nagoshi, Lucas Hietala, Fangneng Huang, Kenneth Narva, Juan Luis Jurat-Fuentes

Faculty Publications

Evolution of resistance threatens sustainability of transgenic crops producing insecticidal proteins from the bacterium Bacillus thuringiensis (Bt). The fall armyworm (Spodoptera frugiperda) is a devastating pest of corn in the Western Hemisphere initially controlled by transgenic Bt corn producing the Cry1Fa insecticidal protein (event TC1507). However field-evolved resistance to TC1507 was observed in Puerto Rico in 2007 and has subsequently been reported in a number of locations in North and South America. Early studies on Puerto Rico fall armyworm populations found that the resistance phenotype was associated with reduced expression of alkaline phosphatase. However, in this work we show that …

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Bowditch's Jsj Tree And The Quasi-Isometry Classification Of Certain Coxeter Groups, Pallavi Dani, Anne Thomas Dec 2017

Bowditch's Jsj Tree And The Quasi-Isometry Classification Of Certain Coxeter Groups, Pallavi Dani, Anne Thomas

Faculty Publications

Bowditch's JSJ tree for splittings over 2-ended subgroups is a quasi-isometry invariant for 1-ended hyperbolic groups which are not cocompact Fuchsian [Bowditch, Acta Math. 180 (1998) 145-186]. Our main result gives an explicit, computable 'visual' construction of this tree for certain hyperbolic right-angled Coxeter groups. As an application of our construction we identify a large class of such groups for which the JSJ tree, and hence the visual boundary, is a complete quasi-isometry invariant, and thus the quasi-isometry problem is decidable. We also give a direct proof of the fact that among the Coxeter groups we consider, the cocompact Fuchsian …

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Effects Of Transients In Ligo Suspensions On Searches For Gravitational Waves, M. Walker, T. D. Abbott, S. M. Aston, G. González, D. M. Macleod, J. Mciver, B. P. Abbott, R. Abbott, C. Adams, R. X. Adhikari, S. B. Anderson, A. Ananyeva, S. Appert, K. Arai, S. W. Ballmer, D. Barker, B. Barr, L. Barsotti, J. Bartlett, I. Bartos, J. C. Batch, A. S. Bell, J. Betzwieser, G. Billingsley, J. Birch, S. Biscans, C. Biwer, C. D. Blair, R. Bork, A. F. Brooks, G. Ciani, F. Clara, S. T. Countryman Dec 2017

Effects Of Transients In Ligo Suspensions On Searches For Gravitational Waves, M. Walker, T. D. Abbott, S. M. Aston, G. González, D. M. Macleod, J. Mciver, B. P. Abbott, R. Abbott, C. Adams, R. X. Adhikari, S. B. Anderson, A. Ananyeva, S. Appert, K. Arai, S. W. Ballmer, D. Barker, B. Barr, L. Barsotti, J. Bartlett, I. Bartos, J. C. Batch, A. S. Bell, J. Betzwieser, G. Billingsley, J. Birch, S. Biscans, C. Biwer, C. D. Blair, R. Bork, A. F. Brooks, G. Ciani, F. Clara, S. T. Countryman

Faculty Publications

This paper presents an analysis of the transient behavior of the Advanced LIGO (Laser Interferometer Gravitational-wave Observatory) suspensions used to seismically isolate the optics. We have characterized the transients in the longitudinal motion of the quadruple suspensions during Advanced LIGO's first observing run. Propagation of transients between stages is consistent with modeled transfer functions, such that transient motion originating at the top of the suspension chain is significantly reduced in amplitude at the test mass. We find that there are transients seen by the longitudinal motion monitors of quadruple suspensions, but they are not significantly correlated with transient motion above …

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Challenges In Development Of Sperm Repositories For Biomedical Fishes: Quality Control In Small-Bodied Species, Leticia Torres, Yue Liu, Amy Guitreau, Huiping Yang, Terrence R. Tiersch Dec 2017

Challenges In Development Of Sperm Repositories For Biomedical Fishes: Quality Control In Small-Bodied Species, Leticia Torres, Yue Liu, Amy Guitreau, Huiping Yang, Terrence R. Tiersch

Faculty Publications

Quality control (QC) is essential for reproducible and efficient functioning of germplasm repositories. However, many biomedical fish models present significant QC challenges due to small body sizes (<5 >cm) and miniscule sperm volumes (<5 >μL). Using minimal volumes of sperm, we used Zebrafish to evaluate common QC endpoints as surrogates for fertilization success along sequential steps of cryopreservation. First, concentrations of calibration bead suspensions were evaluated with a Makler® counting chamber by using different sample volumes and mixing methods. For sperm analysis, samples were initially diluted at a 1:30 ratio with Hanks' balanced salt solution (HBSS). Motility was evaluated by …

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Incorporation Of Fluorescence Ceramide-Based Hplc Assay For Rapidly And Efficiently Assessing Glucosylceramide Synthase In Vivo, Sachin K. Khiste, Salman B. Hosain, Yixuan Dong, Mohammad B. Uddin, Kartik R. Roy, Ronald A. Hill, Zhijun Liu, Yong Yu Liu Dec 2017

Incorporation Of Fluorescence Ceramide-Based Hplc Assay For Rapidly And Efficiently Assessing Glucosylceramide Synthase In Vivo, Sachin K. Khiste, Salman B. Hosain, Yixuan Dong, Mohammad B. Uddin, Kartik R. Roy, Ronald A. Hill, Zhijun Liu, Yong Yu Liu

Faculty Publications

Glucosylceramide synthase (GCS) is a rate-limiting enzyme catalyzing ceramide glycosylation, thereby regulating cellular ceramide levels and the synthesis of glycosphingolipids (GSLs) in cellular membranes. Alterations of GCS not only affect membrane integrity, but also closely correlate with stem cell pluripotency, cancer drug resistance, GSL storage disorders and other diseases. Enzyme activities measured conventionally with currently available ex-vivo methods do not enable reliable assessment of the roles played by GCS in vivo. We report herein a substrate-incorporation method enabling rapid and efficient assessment of GCS in-vivo activity. Upon nanoparticle-based delivery, fluorescent NBD C6-ceramide was efficiently converted to NBD C6-glucosylceramide in live …

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Twenty Years Later: An Update To The Birds Of The Biological Dynamics Of Forest Fragments Project, Amazonas, Brazil, Cameron L. Rutt, Vitek Jirinec, Erik I. Johnson, Mario Cohn-Haft, Claudeir F. Vargas, Philip C. Stouffer Dec 2017

Twenty Years Later: An Update To The Birds Of The Biological Dynamics Of Forest Fragments Project, Amazonas, Brazil, Cameron L. Rutt, Vitek Jirinec, Erik I. Johnson, Mario Cohn-Haft, Claudeir F. Vargas, Philip C. Stouffer

Faculty Publications

Although species lists from throughout Amazonia have become available, relatively complete inventories based on longterm work remain rare. Longitudinal comparisons at well-studied sites provide the best opportunities for describing communities and identifying changes in regional avifaunas. Within central Amazonia, no region has received as much consistent ornithological coverage as the terra firme forests north of Manaus, Brazil, at the Biological Dynamics of Forest Fragments Project (BDFFP). Here we provide an updated list of the area, including notes on all species added between 1997 and 2017. We recorded 21 species new for the site, most of which (>75%) are birds …

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Effect Of Lactation On Conceptus-Maternal Interactions At The Initiation Of Implantation In Cattle: I. Effects On The Conceptus Transcriptome And Amino Acid Composition Of The Uterine Luminal Fluid, Niamh Forde, Constantine A. Simintiras, Roger G. Sturmey, Alexander Graf, Eckhard Wolf, Helmut Blum, Pat Lonergan Dec 2017

Effect Of Lactation On Conceptus-Maternal Interactions At The Initiation Of Implantation In Cattle: I. Effects On The Conceptus Transcriptome And Amino Acid Composition Of The Uterine Luminal Fluid, Niamh Forde, Constantine A. Simintiras, Roger G. Sturmey, Alexander Graf, Eckhard Wolf, Helmut Blum, Pat Lonergan

Faculty Publications

Approximately 65-75 days postpartum (dpp), the estrous cycles of nonlactating (dried off immediately postpartum: n = 12) and lactating (n = 13) Holstein Friesian cows were synchronized and on day 7 a single blastocyst derived from superovulated nulliparous Holstein Friesian heifers was transferred to each cow. A control group of nulliparous heifers (n = 8) were synchronized, inseminated to a standing heat, and slaughtered on the same day as nonlactating and lactating recipients (day 19; estrus = day 0). The uterine horn ipsilateral to the corpus luteum was flushed with 10 ml phosphate-buffered saline and the conceptus, and uterine luminal …

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Genome-Wide Microarray Analysis Leads To Identification Of Genes In Response To Herbicide, Metribuzin In Wheat Leaves, Whitney Pilcher, Hana Zandkamiri, Kelly Arceneaux, Stephen Harrison, Niranjan Baisakh Dec 2017

Genome-Wide Microarray Analysis Leads To Identification Of Genes In Response To Herbicide, Metribuzin In Wheat Leaves, Whitney Pilcher, Hana Zandkamiri, Kelly Arceneaux, Stephen Harrison, Niranjan Baisakh

Faculty Publications

Herbicides are an important component of weed management in wheat, particularly in the southeastern US where weeds actively compete with wheat throughout the winter for nutrients and reduce tillering and ultimately the yield of the crop. Some wheat varieties are sensitive to metribuzin, a low-cost non-selective herbicide, leading to leaf chlorosis, stand loss, and decreased yield. Knowledge of the genetics of herbicide tolerance in wheat is very limited and most new varieties have not been screened for metribuzin tolerance. The identification of genes associated with metribuzin tolerance will lead to the development of molecular markers for use in screening breeding …

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Effects Of Isolation On Ant Assemblages Depend On Microhabitat, Xuan Chen, Benjamin Adams, Michael Layne, Christopher Swarzenski, David Norris, Linda Hooper-Bui Dec 2017

Effects Of Isolation On Ant Assemblages Depend On Microhabitat, Xuan Chen, Benjamin Adams, Michael Layne, Christopher Swarzenski, David Norris, Linda Hooper-Bui

Faculty Publications

How isolation affects biological communities is a fundamental question in ecology and conservation biology. Local diversity (α) agnd regional diversity (γ) are consistently lower in insular areas. The pattern of species turnover (β diversity) and the influence of isolation on competitive interactions are less predictable. Differences in communities across microhabitats within an isolated patch could contribute to the variability in patterns related to isolation. Trees form characteristically dense and sparse patches (low vs. high isolation) in floating marshes in coastal Louisiana, and canopy and root areas around these trees could support distinct ant communities. Consequently, trees in floating marshes provide …

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The Paradox Of A Long Grounding During West Antarctic Ice Sheet Retreat In Ross Sea, Philip J. Bart, Benjamin J. Krogmeier, Manon P. Bart, Slawek Tulaczyk Dec 2017

The Paradox Of A Long Grounding During West Antarctic Ice Sheet Retreat In Ross Sea, Philip J. Bart, Benjamin J. Krogmeier, Manon P. Bart, Slawek Tulaczyk

Faculty Publications

Marine geological data show that the West Antarctic Ice Sheet (WAIS) advanced to the eastern Ross Sea shelf edge during the Last Glacial Maximum (LGM) and eventually retreated ~1000 km to the current grounding-line position on the inner shelf. During the early deglacial, the WAIS deposited a voluminous stack of overlapping grounding zone wedges (GZWs) on the outer shelf of the Whales Deep Basin. The large sediment volume of the GZW cluster suggests that the grounding-line position of the paleo-Bindschadler Ice Stream was relatively stationary for a significant time interval. We used an upper bound estimate of paleo-sediment flux to …

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Topological Complexity Of The Klein Bottle, Daniel C. Cohen, Lucile Vandembroucq Dec 2017

Topological Complexity Of The Klein Bottle, Daniel C. Cohen, Lucile Vandembroucq

Faculty Publications

We show that the normalized topological complexity of the Klein bottle is equal to 4. For any non-orientable surface Ng of genus g≥ 2 , we also show that TC(Ng) = 4. This completes recent work of Dranishnikov on the topological complexity of non-orientable surfaces.

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A 100-Year Review: Yogurt And Other Cultured Dairy Products, Kayanush J. Aryana, Douglas W. Olson Dec 2017

A 100-Year Review: Yogurt And Other Cultured Dairy Products, Kayanush J. Aryana, Douglas W. Olson

Faculty Publications

The history of the last 100 years of the science and technology of yogurt, sour cream, cultured butter, cultured buttermilk, kefir, and acidophilus milk has been one of continuous development and improvement. Yogurt leads the cultured dairy product category in terms of volume of production in the United States and recent research activity. Legal definitions of yogurt, sour cream and acidified sour cream, and cultured milk, including cultured buttermilk, are presented in the United States Code of Federal Regulations and summarized here. A tremendous amount of research has been done on traditional and novel ingredients, starter cultures and probiotics, mix …

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Plenary Power In The Modern Administrative State, Catherine Y. Kim Dec 2017

Plenary Power In The Modern Administrative State, Catherine Y. Kim

Faculty Scholarship

No abstract provided.

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Search For High-Energy Neutrinos From Binary Neutron Star Merger Gw170817 With Antares, Icecube, And The Pierre Auger Observatory, M. G. Aartsen, K. Aultoneal, S. Gaudio, K. Gill, E. M. Gretarsson, B. Hughey, M. Muratore, J. W. W. Pratt, S. G. Schwalbe, K. Staats, M. J. Szczepańczyk, M. Zanolin, Et Al. Dec 2017

Search For High-Energy Neutrinos From Binary Neutron Star Merger Gw170817 With Antares, Icecube, And The Pierre Auger Observatory, M. G. Aartsen, K. Aultoneal, S. Gaudio, K. Gill, E. M. Gretarsson, B. Hughey, M. Muratore, J. W. W. Pratt, S. G. Schwalbe, K. Staats, M. J. Szczepańczyk, M. Zanolin, Et Al.

Publications

The Advanced LIGO and Advanced Virgo observatories recently discovered gravitational waves from a binary neutron star inspiral. A short gamma-ray burst (GRB) that followed the merger of this binary was also recorded by the Fermi Gamma-ray Burst Monitor (Fermi-GBM), and the Anti-Coincidence Shield for the Spectrometer for the International Gamma-Ray Astrophysics Laboratory (INTEGRAL), indicating particle acceleration by the source. The precise location of the event was determined by optical detections of emission following the merger. We searched for high-energy neutrinos from the merger in the GeV–EeV energy range using the ANTARES, IceCube, and Pierre Auger Observatories. No neutrinos directionally coincident …

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