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Faculty Publications

2017

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Relativistic Three-Dimensional Lippman-Schwinger Cross Sections For Space Radiation Applications, Charles M. Werneth, Xiaojing Xu, Ryan B. Norman, Khin M. Maung Dec 2017

Relativistic Three-Dimensional Lippman-Schwinger Cross Sections For Space Radiation Applications, Charles M. Werneth, Xiaojing Xu, Ryan B. Norman, Khin M. Maung

Faculty Publications

Radiation transport codes require accurate nuclear cross sections to compute particle fluences inside shielding materials. The Tripathi semi-empirical reaction cross section, which includes over 60 parameters tuned to nucleon-nucleus (NA) and nucleus-nucleus (AA) data, has been used in many of the world’s best-known transport codes. Although this parameterization fits well to reaction cross section data, the predictive capability of any parameterization is questionable when it is used beyond the range of the data to which it was tuned. Using uncertainty analysis, it is shown that a relativistic three-dimensional Lippmann-Schwinger (LS3D) equation model based on Multiple Scattering Theory (MST) that uses …

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When Your Spouse Is Addicted: How To Avoid Enabling And Get To Reality, Jason B. Whiting Dec 2017

When Your Spouse Is Addicted: How To Avoid Enabling And Get To Reality, Jason B. Whiting

Faculty Publications

Addiction manifests in a variety of ways, from the most severe heroin junkie, to the compulsive spender. It can include drug or alcohol dependence, compulsive pornography use, gambling, obsessive eating, lying, toxic relationships, or even Netflix. When does a habit become an addiction? Any behavior can begin as pleasure or escape, but in the case of addiction, the actions become demands. Addictions are secretive habits the person has unsuccessfully tried to stop, and that have disrupted work and home. An addiction takes an outsized role in the addict’s life and affects those they love.

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Initiation And Long-Term Instability Of The East Antarctic Ice Sheet, Sean P.S. Gulick, Amelia E. Shevenell, Aleksandr Montelli, Rodrigo Fernandez, Catherine Smith, Sophie Warny, Steven M. Bohaty, Charlotte Sjunneskog, Amy Leventer, Bruce Frederick, Donald D. Blankenship Dec 2017

Initiation And Long-Term Instability Of The East Antarctic Ice Sheet, Sean P.S. Gulick, Amelia E. Shevenell, Aleksandr Montelli, Rodrigo Fernandez, Catherine Smith, Sophie Warny, Steven M. Bohaty, Charlotte Sjunneskog, Amy Leventer, Bruce Frederick, Donald D. Blankenship

Faculty Publications

© 2017 Macmillan Publishers Limited, part of Springer Nature. All rights reserved. Antarctica's continental-scale ice sheets have evolved over the past 50 million years. However, the dearth of ice-proximal geological records limits our understanding of past East Antarctic Ice Sheet (EAIS) behaviour and thus our ability to evaluate its response to ongoing environmental change. The EAIS is marine-terminating and grounded below sea level within the Aurora subglacial basin, indicating that this catchment, which drains ice to the Sabrina Coast, may be sensitive to climate perturbations. Here we show, using marine geological and geophysical data from the continental shelf seaward of …

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Sexual Recombination And Increased Mutation Rate Expedite Evolution Of Escherichia Coli In Varied Fitness Landscapes, George Peabody, Hao Li, Katy Kao Dec 2017

Sexual Recombination And Increased Mutation Rate Expedite Evolution Of Escherichia Coli In Varied Fitness Landscapes, George Peabody, Hao Li, Katy Kao

Faculty Publications

Sexual recombination and mutation rate are theorized to play different roles in adaptive evolution depending on the fitness landscape; however, direct experimental support is limited. Here we examine how these factors affect the rate of adaptation utilizing a “genderless” strain of Escherichia coli capable of continuous in situ sexual recombination. The results show that the populations with increased mutation rate, and capable of sexual recombination, outperform all the other populations. We further characterize two sexual and two asexual populations with increased mutation rate and observe maintenance of beneficial mutations in the sexual populations through mutational sweeps. Furthermore, we experimentally identify …

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Speech Codes Theory, Tabitha Hart Dec 2017

Speech Codes Theory, Tabitha Hart

Faculty Publications

Rooted in the ethnography of communication and based on empirical research, speech codes theory is a theoretical/methodological tool for studying situated communication practices. Two important applications of speech codes theory are to reveal local cultures and to examine the ways in which people make use of communication to accomplish important goals pertaining to communal life. Speech codes theory offers researchers a systematic approach to describing, interpreting, analyzing, and comparing local communicative practices and the cultures which they instantiate.

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Deep Experimental Profiling Of Microrna Diversity, Deployment, And Evolution Across The Drosophila Genus, Jaaven Mohammed, Alex S. Flynt, Alexandra M. Panzarino, Md Mosharrof Hossain Mondal, Matthew Decruz, Adam Siepel, Eric C. Lai Dec 2017

Deep Experimental Profiling Of Microrna Diversity, Deployment, And Evolution Across The Drosophila Genus, Jaaven Mohammed, Alex S. Flynt, Alexandra M. Panzarino, Md Mosharrof Hossain Mondal, Matthew Decruz, Adam Siepel, Eric C. Lai

Faculty Publications

To assess miRNA evolution across the Drosophila genus, we analyzed several billion small RNA reads across 12 fruit fly species. These data permit comprehensive curation of species- and clade-specific variation in miRNA identity, abundance, and processing. Among well-conserved miRNAs, we observed unexpected cases of clade-specific variation in 5′ end precision, occasional antisense loci, and putatively noncanonical loci. We also used strict criteria to identify a large set (649) of novel, evolutionarily restricted miRNAs. Within the bulk collection of species-restricted miRNAs, two notable subpopulations are splicing-derived mirtrons and testes-restricted, recently evolved, clustered (TRC) canonical miRNAs. We quantified miRNA birth and death …

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No Consistent Evidence For Advancing Or Delaying Trends In Spring Phenology On The Tibetan Plateau, Xufeng Wang, Jingfeng Xiao, Xin Li, Guodong Cheng, Mingguo Ma, Tao Che, Shaoying Wang, Jinkui Wu Dec 2017

No Consistent Evidence For Advancing Or Delaying Trends In Spring Phenology On The Tibetan Plateau, Xufeng Wang, Jingfeng Xiao, Xin Li, Guodong Cheng, Mingguo Ma, Tao Che, Shaoying Wang, Jinkui Wu

Faculty Publications

Vegetation phenology is a sensitive indicator of climate change and has significant effects on the exchange of carbon, water, and energy between the terrestrial biosphere and the atmosphere. The Tibetan Plateau, the Earth's “third pole,” is a unique region for studying the long‐term trends in vegetation phenology in response to climate change because of the sensitivity of its alpine ecosystems to climate and its low‐level human disturbance. There has been a debate whether the trends in spring phenology over the Tibetan Plateau have been continuously advancing over the last two to three decades. In this study, we examine the trends …

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Homogenization Techniques For Population Dynamics In Strongly Heterogeneous Landscapes, Brian P. Yurk, Christina A. Cobbold Dec 2017

Homogenization Techniques For Population Dynamics In Strongly Heterogeneous Landscapes, Brian P. Yurk, Christina A. Cobbold

Faculty Publications

An important problem in spatial ecology is to understand how population-scale patterns emerge from individual-level birth, death, and movement processes. These processes, which depend on local landscape characteristics, vary spatially and may exhibit sharp transitions through behavioural responses to habitat edges, leading to discontinuous population densities. Such systems can be modelled using reaction–diffusion equations with interface conditions that capture local behaviour at patch boundaries. In this work we develop a novel homogenization technique to approximate the large-scale dynamics of the system. We illustrate our approach, which also generalizes to multiple species, with an example of logistic growth within a periodic …

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Erratum: First Search For Gravitational Waves From Known Pulsars With Advanced Ligo (Astrophysical Journal (2017) 839 (12) Doi: 10.3847/1538-4357/Aa677f), B. P. Abbott, R. Abbott, T. D. Abbott, M. R. Abernathy, F. Acernese, K. Ackley, C. Adams, T. Adams, P. Addesso, R. X. Adhikari, V. B. Adya, C. Affeldt, M. Agathos, K. Agatsuma, N. Aggarwal, O. D. Aguiar, L. Aiello, A. Ain, P. Ajith, B. Allen, A. Allocca, P. A. Altin, A. Ananyeva, S. B. Anderson, W. G. Anderson, S. Appert, K. Arai, M. C. Araya, J. S. Areeda, N. Arnaud, K. G. Arun, S. Ascenzi, G. Ashton Dec 2017

Erratum: First Search For Gravitational Waves From Known Pulsars With Advanced Ligo (Astrophysical Journal (2017) 839 (12) Doi: 10.3847/1538-4357/Aa677f), B. P. Abbott, R. Abbott, T. D. Abbott, M. R. Abernathy, F. Acernese, K. Ackley, C. Adams, T. Adams, P. Addesso, R. X. Adhikari, V. B. Adya, C. Affeldt, M. Agathos, K. Agatsuma, N. Aggarwal, O. D. Aguiar, L. Aiello, A. Ain, P. Ajith, B. Allen, A. Allocca, P. A. Altin, A. Ananyeva, S. B. Anderson, W. G. Anderson, S. Appert, K. Arai, M. C. Araya, J. S. Areeda, N. Arnaud, K. G. Arun, S. Ascenzi, G. Ashton

Faculty Publications

There is an error in Equation?(4) of the original paper, which should instead be (Formula Presented) This makes it consistent with Equation?(3) of Aasi et al. (2014), which was actually used when calculating the value of the Q22 upper limits from the h0 upper limits for the results of this paper.

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Search For Post-Merger Gravitational Waves From The Remnant Of The 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

Search For Post-Merger Gravitational Waves From The Remnant Of The 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

The first observation of a binary neutron star (NS) coalescence by the Advanced LIGO and Advanced Virgo gravitational-wave (GW) detectors offers an unprecedented opportunity to study matter under the most extreme conditions. After such a merger, a compact remnant is left over whose nature depends primarily on the masses of the inspiraling objects and on the equation of state of nuclear matter. This could be either a black hole (BH) or an NS, with the latter being either long-lived or too massive for stability implying delayed collapse to a BH. Here, we present a search for GWs from the remnant …

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Erratum: First Search For Gravitational Waves From Known Pulsars With Advanced Ligo (Astrophysical Journal (2017) 839 (12) Doi: 10.3847/1538-4357/Aa677f), B. P. Abbott, R. Abbott, T. D. Abbott, M. R. Abernathy, F. Acernese, K. Ackley, C. Adams, T. Adams, P. Addesso, R. X. Adhikari, V. B. Adya, C. Affeldt, M. Agathos, K. Agatsuma, N. Aggarwal, O. D. Aguiar, L. Aiello, A. Ain, P. Ajith, B. Allen, A. Allocca, P. A. Altin, A. Ananyeva, S. B. Anderson, W. G. Anderson, S. Appert, K. Arai, M. C. Araya, J. S. Areeda, N. Arnaud, K. G. Arun, Tiffany Z. Summerscales Dec 2017

Erratum: First Search For Gravitational Waves From Known Pulsars With Advanced Ligo (Astrophysical Journal (2017) 839 (12) Doi: 10.3847/1538-4357/Aa677f), B. P. Abbott, R. Abbott, T. D. Abbott, M. R. Abernathy, F. Acernese, K. Ackley, C. Adams, T. Adams, P. Addesso, R. X. Adhikari, V. B. Adya, C. Affeldt, M. Agathos, K. Agatsuma, N. Aggarwal, O. D. Aguiar, L. Aiello, A. Ain, P. Ajith, B. Allen, A. Allocca, P. A. Altin, A. Ananyeva, S. B. Anderson, W. G. Anderson, S. Appert, K. Arai, M. C. Araya, J. S. Areeda, N. Arnaud, K. G. Arun, Tiffany Z. Summerscales

Faculty Publications

© 2017. The American Astronomical Society. All rights reserved. There is an error in Equation?(4) of the original paper, which should instead be (Formula Presented) This makes it consistent with Equation?(3) of Aasi et al. (2014), which was actually used when calculating the value of the Q22 upper limits from the h0 upper limits for the results of this paper.

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Social Support Strategies In Online Forums Among Adult Offspring Of Parents With Harmful Alcohol Use, Marie Haverfield, John Leustek, Christine Timko Dec 2017

Social Support Strategies In Online Forums Among Adult Offspring Of Parents With Harmful Alcohol Use, Marie Haverfield, John Leustek, Christine Timko

Faculty Publications

The authors categorized communication strategies employed to exchange social support (type and person centeredness) in three online forums about parents with harmful drinking. Data included discussion postreplies over 2 months; N = 1,644 units of analysis. Support type categories were identification, emotional, informational, network, and esteem. For person centeredness, most messages were moderate (expressed sympathy, provided distraction), followed by high (helped with feelings), and then low (minimized feelings). Adult offspring of parents with harmful drinking predominantly communicate self-interested forms of support in online forums. Based on principles of supportive communication, esteem support and high person centeredness may enhance social support …

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Introduction Of Iodised Salt Benefits Infants’ Mental Development In A Community-Based Cluster-Randomised Effectiveness Trial In Ethiopia, Karim Bougma, Frances E. Aboud, Tizita M. Lemma, Edward A. Frongillo Jr., Grace S. Marquis Dec 2017

Introduction Of Iodised Salt Benefits Infants’ Mental Development In A Community-Based Cluster-Randomised Effectiveness Trial In Ethiopia, Karim Bougma, Frances E. Aboud, Tizita M. Lemma, Edward A. Frongillo Jr., Grace S. Marquis

Faculty Publications

The effectiveness of salt iodisation in improving the mental development of young children has not been assessed. We implemented a community-based cluster-randomised effectiveness trial in sixty randomly selected districts in the Amhara region of Ethiopia. We randomly allocated each district to treatment and randomly selected one of its villages. In parallel to national salt iodisation efforts, iodised salt was brought early into the markets of the thirty intervention villages before it became widely available in the thirty control villages 4–6 months later. The primary outcome was children’s mental development scores on the Bayley Scales. This was an intention-to-treat analysis using …

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Using Milk Urea Nitrogen To Calculate Urine And Urinary Nitrogen Output, Peter S. Erickson Dec 2017

Using Milk Urea Nitrogen To Calculate Urine And Urinary Nitrogen Output, Peter S. Erickson

Faculty Publications

No abstract provided.

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Parallel Cosine Nearest Neighbor Graph Construction, David Anastasiu, George Karypis Dec 2017

Parallel Cosine Nearest Neighbor Graph Construction, David Anastasiu, George Karypis

Faculty Publications

The nearest neighbor graph is an important structure in many data mining methods for clustering, advertising, recommender systems, and outlier detection. Constructing the graph requires computing up to n2 similarities for a set of n objects. This high complexity has led researchers to seek approximate methods, which find many but not all of the nearest neighbors. In contrast, we leverage shared memory parallelism and recent advances in similarity joins to solve the problem exactly. Our method considers all pairs of potential neighbors but quickly filters pairs that could not be a part of the nearest neighbor graph, based on similarity …

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Dinoflagellate Cysts Track Eutrophication In The Northern Gulf Of Mexico, Andrea M. Price, Melissa M. Baustian, R. Eugene Turner, Nancy N. Rabalais, Gail L. Chmura Dec 2017

Dinoflagellate Cysts Track Eutrophication In The Northern Gulf Of Mexico, Andrea M. Price, Melissa M. Baustian, R. Eugene Turner, Nancy N. Rabalais, Gail L. Chmura

Faculty Publications

We examined organic-walled dinoflagellate cysts from one 210Pb-dated sediment core and 39 surface sediment samples from the northern Gulf of Mexico to determine the relationship between nutrient enrichment and cyst assemblages in this region characterized by oxygen deficiency. The core spans from 1962 to 1997 and its sampling location is directly influenced by the Mississippi River plume. Surface sediments were collected in 2006, 2007, 2008, and 2014 and represent approximately 1 to 4 years of accumulation. A total of 57 cyst taxa were recorded, and four heterotrophic taxa in particular were found to increase in the top section (1986–1997) of …

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Interactional Competence In Japanese As An Additional Language: An Overview, Tim Greer, Midori Ishida, Yumiko Tateyama Dec 2017

Interactional Competence In Japanese As An Additional Language: An Overview, Tim Greer, Midori Ishida, Yumiko Tateyama

Faculty Publications

Speaking a language involves more than just knowledge of grammar, vocabulary, and pronunciation: It also requires the abilities to interpret what your interlocutor is saying, to formulate a relevant response, and to deliver it in a timely manner. In addition, it entails skills such as dealing with trouble in talk when it arises and being able to identify an appropriate moment to start speaking. In short, it requires interactional competence (IC). As this applies to speaking a language other than one's first, this volume of Pragmatics & Interaction examines specific interactional competences {ICs) that speakers of Japanese as an additional …

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Developing Recipient Competence During Study Abroad, Midori Ishida Dec 2017

Developing Recipient Competence During Study Abroad, Midori Ishida

Faculty Publications

Partly as a response to Kinginger's (2009) call for studies that examine the interaction in which L2 speakers participate during study abroad and its relationship with long-term development, this chapter explores what features of social interaction might afford L2 speakers opportunities to "form new practices" (Pallotti & Wagner, 2011, p. 1), especially when using receipts.

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Utilizing Undf In Dairy Cow Diets: A New Way Of Looking At Forage Fiber, Peter S. Erickson Dec 2017

Utilizing Undf In Dairy Cow Diets: A New Way Of Looking At Forage Fiber, Peter S. Erickson

Faculty Publications

No abstract provided.

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Were The 1982 Merger Guidelines Old News?, Alan J. Meese, Sarah L. Stafford Dec 2017

Were The 1982 Merger Guidelines Old News?, Alan J. Meese, Sarah L. Stafford

Faculty Publications

This paper examines the impact of the 1982 Department of Justice Merger Guidelines on the stock market prices of publicly traded firms in the United States. We argue that those Guidelines were perceived by the market as a real change in enforcement policy that would result in substantial deregulation of mergers throughout the economy. We conduct an event study of S&P 500 firms to test this hypothesis and find evidence of a significant positive effect on the stock prices of firms in moderately concentrated industries subject to antitrust regulation, the firms for which the 1982 Guidelines articulate a substantially less …

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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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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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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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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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Comparison Of Ecosystem Processes In A Woodland And Prairie Pond With Different Hydroperiods, Daniel J. Hornbach, Mark C. Hove, Mira W. Ensley-Field, Matthew R. Glasenapp, Ian A. Goodbar, J. Douglas Harman, Benjamin D. Huber, Emily A. Kangas, Kira X. Liu, Molly Stark-Ragsdale, Long K. Tran Dec 2017

Comparison Of Ecosystem Processes In A Woodland And Prairie Pond With Different Hydroperiods, Daniel J. Hornbach, Mark C. Hove, Mira W. Ensley-Field, Matthew R. Glasenapp, Ian A. Goodbar, J. Douglas Harman, Benjamin D. Huber, Emily A. Kangas, Kira X. Liu, Molly Stark-Ragsdale, Long K. Tran

Faculty Publications

Shallow lakes and ponds constitute a significant number of water bodies worldwide. Many are heterotrophic, indicating that they are likely net contributors to global carbon cycling. Climate change is likely to have important impacts on these waterbodies. In this study, we examined two small Minnesota ponds; a permanent woodland pond and a temporary prairie pond. The woodland pond had lower levels of phosphorus and phytoplankton than the prairie pond. Using the open water oxygen method, we found the prairie pond typically had a higher level of gross primary production (GPP) and respiration (R) than the woodland pond, although the differences …

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Pyruvate Dehydrogenase Complex (Pdc) Subunits Moonlight As Interaction Partners Of Phosphorylated Stat5 In Adipocytes And Adipose Tissue, Allison J. Richard, Hardy Hang, Jacqueline M. Stephens Dec 2017

Pyruvate Dehydrogenase Complex (Pdc) Subunits Moonlight As Interaction Partners Of Phosphorylated Stat5 In Adipocytes And Adipose Tissue, Allison J. Richard, Hardy Hang, Jacqueline M. Stephens

Faculty Publications

© 2017 by The American Society for Biochemistry and Molecular Biology, Inc. STAT5 proteins play a role in adipocyte development and function, but their specific functions are largely unknown. To this end, we used an unbiased MS-based approach to identify novel STAT5-interacting proteins. We observed that STAT5A bound the E1 and E2 subunits of the pyruvate dehydrogenase complex (PDC). Whereas STAT5A typically localizes to the cytosol or nucleus, PDC normally resides within the mitochondrial matrix where it converts pyruvate to acetyl-CoA. We employed affinity purification and immunoblotting to validate the interaction between STAT5A and PDC subunits in murine and human …

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Fenugreek Supplementation During High-Fat Feeding Improves Specific Markers Of Metabolic Health, Eric J. Knott, Allison J. Richard, Randall L. Mynatt, David Ribnicky, Jacqueline M. Stephens, Annadora Bruce-Keller Dec 2017

Fenugreek Supplementation During High-Fat Feeding Improves Specific Markers Of Metabolic Health, Eric J. Knott, Allison J. Richard, Randall L. Mynatt, David Ribnicky, Jacqueline M. Stephens, Annadora Bruce-Keller

Faculty Publications

© 2017 The Author(s). To assess the metabolically beneficial effects of fenugreek (Trigonella foenum-graecum), C57BL/6J mice were fed a low- or high-fat diet for 16 weeks with or without 2% (w/w) fenugreek supplementation. Body weight, body composition, energy expenditure, food intake, and insulin/glucose tolerance were measured regularly, and tissues were collected for histological and biochemical analysis after 16 weeks of diet exposure. Fenugreek did not alter body weight, fat mass, or food intake in either group, but did transiently improve glucose tolerance in high fat-fed mice. Fenugreek also significantly improved high-density lipoprotein to low-density lipoprotein ratios in high fat-fed mice …

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Yy1'S Role In The Peg3 Imprinted Domain, Hongzhi He, An Ye, Bambarendage P.U. Perera, Joomyeong Kim Dec 2017

Yy1'S Role In The Peg3 Imprinted Domain, Hongzhi He, An Ye, Bambarendage P.U. Perera, Joomyeong Kim

Faculty Publications

© 2017 The Author(s). The ICR (Imprinting Control Region) of the Peg3 (Paternally Expressed Gene 3) domain contains an unusual cluster of YY1 binding sites. In the current study, these YY1 binding sites were mutated to characterize the unknown roles in the mouse Peg3 domain. According to the results, paternal and maternal transmission of the mutant allele did not cause any major effect on the survival of the pups. In the mutants, the maternal-specific DNA methylation on the ICR was properly established and maintained, causing no major effect on the imprinting of the domain. In contrast, the paternal transmission resulted …

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Editorial: Special Thematic Issue On Inland Aquatic Ecosystems, Hongchen Jiang, Yongqin Liu, Gary King Dec 2017

Editorial: Special Thematic Issue On Inland Aquatic Ecosystems, Hongchen Jiang, Yongqin Liu, Gary King

Faculty Publications

No abstract provided.

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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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