cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Taxonomy and phylogenetic systematics of the Indo-Pacific whip-tailed stingray genus Himantura Muller & Henle 1837 (Chondrichthyes: Myliobatiformes: Dasyatidae)
Creators: name: Manjaji, Bernardette Mabel
Publisher: name: University Of Tasmania
Year: 2023

description: This thesis includes two main sections, a general discussion, and conclusion. In Section 1 (Systematics), taxonomic methods for the taxonomic revision are outlined in Chapter 2, and character analysis for the morphological phylogenetic inference outlined in Chapter 3. The application of molecular techniques (DNA sequencing using Polymerase Chain Reaction) for phylogenetic inference is given in Chapter 4. In Section 2 (Taxonomy), a taxonomic account, including a key to species and species description of the Indo-Pacific whip-tailed stingray based on the results of Chapters 3 and 4 in Section 1, is given (Chapter 5). A general discussion (Chapter 6) and conclusion (Chapter 7) is based on the overall result of the study. Except for Chapter 2, each chapter under the main sections are self-contained in that the results and discussion are given under the same chapter heading. The thesis is presented in two volumes, and combined into one bound copy: Volume I contains Chapters 1-4; Volume II contains Chapters 5-7, References, Tables (if not already included in the text) and Appendices.
A Search for H2O Megamasers in High-z Type-2 AGNs
Creators: name: Bennert, Nicola
name: Barvainis, Richard
name: Henkel, Christian
name: Antonucci, Robert
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report a search for H2O megamasers in 274 SDSS type-2 AGNs (0.3 < z < 0.83), half of which can be classified as type-2 QSOs from their [OIII] 5007 luminosity, using the Robert C. Byrd Green Bank Telescope (GBT) and the Effelsberg 100-m radio telescope. Apart from the detection of the extremely luminous water vapor megamaser SDSS J080430.99+360718.1, already reported by Barvainis & Antonucci (2005), we do not find any additional line emission. This high rate of non-detections is compared to the water maser luminosity function created from the 78 water maser galaxies known to date and its extrapolation towards the higher luminosities of "gigamasers" that we would have been able to detect given the sensitivity of our survey. The properties of the known water masers are summarized and discussed with respect to the nature of high-z type-2 AGNs and megamasers in general. In the appendix, we list 173 additional objects (mainly radio galaxies, but also QSOs and galaxies) that were observed with the GBT, the Effelsberg 100-m radio telescope, or Arecibo Observatory without leading to the detection of water maser emission.
description: 28 pages, 3 figures. Accepted for publication in the Astrophysical Journal
Additional file 1 of Genetic mapping and molecular mechanism behind color variation in the Asian vine snake
Creators: name: Tang, Chen-Yang
name: Zhang, Xiaohu
name: Xu, Xiao
name: Sun, Shijie
name: Peng, Changjun
name: Song, Meng-Huan
name: Yan, Chaochao
name: Sun, Huaqin
name: Liu, Mingfeng
name: Xie, Liang
name: Luo, Shu-Jin
name: Li, Jia-Tang
Publisher: name: figshare
Year: 2023
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Fig. S1. Supplementary ultrastructure of skin samples of green and yellow morphs. Fig. S2. Synteny tracker of chromosomes among genomes of Naja naja, Thermophis baileyi, Ahaetulla prasina, Thamnophis elegans, and Zootoca vivipara. Fig. S3. Genome complexity assessment. Fig S4. Maximum-likelihood tree based on whole-genome SNPs. Fig. S5. QQ-plot of all SNPs based on p-value in GWAS analysis. Fig. S6. Linkage Disequilibrium decay rates of A.prasina. Fig. S7. The predicted spatial structure comparison between wild-type and mutant proteins of SMARCE1. Fig. S8. Volcano diagram of gene expression level. Fig. S9. Dotplot of statistically significant GO terms enriched by DEGs. Fig. S10. Morpholino injected and wild-type embryos at 72 hpf. Fig. S11. The uncropped western blot membranes that showed in Fig. 5B. Table S1. Information on the content of main chromatophore-related metabolites. Table S2. The chromosome length of Ahaetulla prasina.Table S3. Statistics for Ahaetulla prasina genome assemblies.Table S4. Statistics of the completeness genomes using BUSCO. Table S5. Quality metrics for A. prasina genome compared to other published snake genomes. Table S6. Statistics of the annotated genes. Table S7. Overview of whole genome sequencing data. Table S8. The top 30 genomic windows of population differentiation (Fst). Table S10. Coding genes within the region of GWAS signals. Table S11. Annotation of 3 missense variants using snpEFF software. Table S12. Summary of protein variation effect prediction. Table S13. Summary of RNA-seq data from 30 skin samples. Table S14. Primers used in qRT-PCR.
Deformation of compacts of magnesium hydroxide during dehydroxylation
Creators: name: Sunderland, Philip William
Publisher: name: University of British Columbia
Year: 2011

description: The deformation behaviour of polycrystalline compacts of Mg(OH)₂ during dehydroxylation has been studied in an attempt to evaluate the nature of strain that can be introduced into the compact during the reaction. A study of neck-growth between tips of single crystals of Ca(OH)₂, and between two hemispherical tips of Mg(OH)₂, compacts showed both deformation and interaction at the contact point during the dehydroxylation reaction. Load-dependent deformation of the compacts gave a total strain proportional to the one-third power of the applied stress. The creep deformation of Mg(OH)₂ compacts during dehydroxylation was also studied under isothermal conditions. The overall creep behaviour can be divided into three stages. The initial stage is initiated by the dehydroxylation reaction. During the second or steady state creep stage the highest creep rate was obtained. The steady state creep rate was determined as a function of temperature pressure, and relative density of the green compact. The results are represented by: [formula omitted] Particle sliding was considered to be the most probable mechanism for creep during the second stage.
Modular elimination in matroids and oriented matroids
Creators: name: Delucchi, Emanuele
Publisher: name: arXiv
Year: 2010
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05B35

description: We introduce a new axiomatization of matroid theory that requires the elimination property only among modular pairs of circuits, and we present a cryptomorphic phrasing thereof in terms of Crapo's axioms for flats. This new point of view leads to a corresponding strengthening of the circuit axioms for oriented matroids.
description: 6 pages; v2: text modified in order to better reflect the published version, references updated
Handwerksstruktur des ländlichen Raums - räumliche und gewerkespezifische Analyse Südniedersachsens
Creators: name: Bischoff, Thore Sören
name: Haverkamp, Katarzyna
name: Proeger, Till
name: Thonipara, Anita
Publisher: name: Göttingen : ifh, Volkswirtschaftliches Institut für Mittelstand und Handwerk an der Universität Göttingen
Year: 2020
Subjects: Ländlicher Raum
Südniedersachsen
Betriebs- und Handwerkestruktur

description: Handwerksbetriebe prägen die Wirtschaftsstrukturen in ländlichen Räumen, indem sie wichtige Aufgaben in der Ausbildung, im regionalen Innovationssystem sowie der Versorgung der Region wahrnehmen. Erfolgreiche Handwerksbetriebe können dabei als ökonomische „Stabilitätsanker“ für den ländlichen Raum wirken. Ein besseres Verständnis der räumlichen und gewerkespezifischen Handwerksstrukturen und der Rolle des dort ansässigen Handwerks ist somit für eine zielgerichtete Förderung ländlicher Räume von zentraler Bedeutung. Die vorliegende Studie leistet dazu durch die Analyse des Handwerks im ländlichen Raum der Region Südniedersachsen auf Basis verschiedener Datensätze einen Beitrag. Folgende Kernergebnisse hat die vorliegende Studie: 1. Die Region Südniedersachsen zeichnet sich durch eine überwiegend ländliche Struktur mit wenigen städtischen Räumen aus. Anhand mehrerer Indikatoren zeigt sich, dass die Untersuchungsregion repräsentativ für den ländlichen Raum Deutschlands ist. 2. Die Handwerksstruktur im ländlichen Raum ist vor allem durch das produzierende Handwerk geprägt, da die Betriebe dieser Handwerke überdurchschnittlich häufig im ländlichen Raum anzutreffen sind, während dienstleistungsnahe Handwerke häufiger im städtischen Raum angesiedelt sind. Besonders häufig sind im ländlichen Raum vertreten: Fleischer, Zimmerer, Dachdecker, Maurer, das Gewerbe „Einbau von genormten Baufertigteilen“, Tischler, Bäcker, Zentralheizungs- und Lüftungsbauer sowie Maurer und Betonbauer. 3. Zusätzlich haben die Lebensmittel- und Gesundheitshandwerke aufgrund ihrer Versorgungsfunktion eine hohe Relevanz für den ländlichen Raum. Die Gesundheitshandwerke sind dabei häufiger in urbanen Räumen angesiedelt, die Lebensmittelhandwerke häufiger im ländlichen Raum. 4. Aufgrund ihrer hohen Ausbildungsleistung im ländlichen Raum haben zudem Maler und Lackierer, Tischler, Metallbauer, Maurer und Betonbauer, Zimmerer, Dachdecker, Installateure und Heizungsbauer, Elektrotechniker sowie Bäcker eine hohe Bedeutung für die Wirtschaftsstruktur im ländlichen Raum. Obwohl nicht überproportional im ländlichen Raum vertreten, haben auch Kraftfahrzeugtechniker, Friseure, Feinwerkmechaniker, Landmaschinenmechaniker, Augenoptiker und Zahntechniker aufgrund ihres hohen Engagements in der Berufsbildung eine zentrale Rolle. Insgesamt stellt die Studie eine Gewerkeauswahl bereit, die für künftige wissenschaftliche Studien zur Analyse und Förderung des ländlichen Handwerks genutzt werden kann.
description: Göttinger Beiträge zur Handwerksforschung ; 47
A cluster expansion approach to renormalization group transformations
Creators: name: Yin, Mei
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The renormalization group (RG) approach is largely responsible for the considerable success which has been achieved in developing a quantitative theory of phase transitions. This work treats the rigorous definition of the RG map for classical Ising-type lattice systems in the infinite volume limit at high temperature. A cluster expansion is used to justify the existence of the partial derivatives of the renormalized interaction with respect to the original interaction. This expansion is derived from the formal expressions, but it is itself well-defined and convergent. Suppose in addition that the original interaction is finite-range and translation-invariant. We will show that the matrix of partial derivatives in this case displays an approximate band property. This in turn gives an upper bound for the RG linearization.
description: 13 pages
title: Understanding Pyrotechnic Shock Dynamics and Response Attenuation Over Distance
Creators: name: Ott, Richard J.
Publisher: name: Utah State University
Year: 2016

description: Pyrotechnic shock events used during stage separation on rocket vehicles produce high amplitude short duration structural response that can lead to malfunction or degradation of electronic components, cracks and fractures in brittle materials, local plastic deformation, and can cause materials to experience accelerated fatigue life. These transient loads propagate as waves through the structural media losing energy as they travel outward from the source. This work assessed available test data in an effort to better understand attenuation characteristics associated with wave propagation and attempted to update a historical standard defined by the Martin Marietta Corporation in the late 1960's using out of date data acquisition systems. Two data sets were available for consideration. The first data set came from a test that used a flight like cylinder used in NASA's Ares I-X program, and the second from a test conducted with a at plate. Both data sets suggested that the historical standard was not a conservative estimate of shock attenuation with distance, however, the variation in the test data did not lend to recommending an update to the standard.
Beyond considering attenuation with distance an effort was made to model the at plate configuration using finite element analysis. The available at plate data consisted of three groups of tests, each with a unique charge density linear shape charge (LSC) used to cut an aluminum plate. The model was tuned to a representative test using the lowest charge density LSC as input. The correlated model was then used to predict the other two cases by linearly scaling the input load based on the relative difference in charge density. The resulting model predictions were then compared with available empirical data. Aside from differences in amplitude due to nonlinearities associated with scaling the charge density of the LSC, the model predictions matched the available test data reasonably well. Finally, modeling best practices were recommended when using industry standard software to predict shock response on structures. As part of the best practices documented, a frequency dependent damping schedule that can be used in model development when no data is available is provided.
Megaptera novaeangliae
Creators: name: Aidek, Ahmad E.
name: Ibrahim, Amir
name: Amr, Zuhair
name: Hutterer, Rainer
name: Kryštufek, Boris
name: Serra, Gianluca
name: Benda, Petr
name: Shkaky, Yesra
name: Barbanera, Filippo
name: Al-Sheikhly, Omar F.
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Cetacea
Balaenopteridae
Megaptera
Megaptera novaeangliae

description: 104. Humpback Whale, Megaptera novaeangliae (Borowski, 1781)
(IUCN Red List: LC)
Subspecies: M. n. novaeangliae (Borowski, 1781).
Status: Occasional; stranded dead on the coast of Tartous in 2003 (Saad 2004; Ibrahim 2008; Gonzalvo & Bearzi 2008; Saad 2008; Ibrahim 2011b), and a whale found swimming 3 km west of Tartous (Saad et al. 2019) (Fig. 113).
description: Published as part of Aidek, Ahmad E., Ibrahim, Amir, Amr, Zuhair, Hutterer, Rainer, Kryštufek, Boris, Serra, Gianluca, Benda, Petr, Shkaky, Yesra, Barbanera, Filippo & Al-Sheikhly, Omar F., 2025, Checklist of Mammals of Syria, pp. 1-130 in Zootaxa 5580 (1) on page 103, DOI: 10.11646/zootaxa.5580.1.1, http://zenodo.org/record/14797597
Cox rings, semigroups and automorphisms of affine algebraic varieties
Creators: name: Arzhantsev, Ivan V.
name: Gaifullin, Sergey A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Algebraic Geometry (math.AG)
subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 14R20;14M25;14R10; 20M14

description: We study the Cox realization of an affine variety, i.e., a canonical representation of a normal affine variety with finitely generated divisor class group as a quotient of a factorially graded affine variety by an action of the Neron-Severi quasitorus. The realization is described explicitly for the quotient space of a linear action of a finite group. A universal property of this realization is proved, and some results on the divisor theory of an abstract semigroup emerging in this context are given. We show that each automorphism of an affine variety can be lifted to an automorphism of the Cox ring normalizing the grading. It follows that the automorphism group of a non-degenerate affine toric variety of dimension $\geq 2$ has infinite dimension. We obtain a wild automorphism of the three-dimensional quadratic cone that rises to Anick's automorphism of the polynomial algebra in four variables.
description: 19 pages
Diffuse neutrino flux from failed supernovae
Creators: name: Lunardini, Cecilia
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I study the diffuse flux of electron antineutrinos from stellar collapses with direct black hole formation (failed supernovae). This flux is more energetic than that from successful supernovae, and therefore it might contribute substantially to the total diffuse flux above realistic detection thresholds. The total flux might be considerably higher than previously thought, and approach the sensitivity of SuperKamiokande. For more conservative values of the parameters, the flux from failed supernovae dominates for antineutrino energies above 30-45 MeV, with potential to give an observable spectral distortion at Megaton detectors.
description: PDFLaTeX, 4 pages, 3 figures. New version has improved text and graphics, references added. Results unchanged
Level Crossings in Complex Two-Dimensional Potentials
Creators: name: Wang, Qing-hai
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Two-dimensional PT-symmetric quantum-mechanical systems with the complex cubic potential V_{12}=x^2+y^2+igxy^2 and the complex Henon-Heiles potential V_{HH}=x^2+y^2+ig(xy^2-x^3/3) are investigated. Using numerical and perturbative methods, energy spectra are obtained to high levels. Although both potentials respect the PT symmetry, the complex energy eigenvalues appear when level crossing happens between same parity eigenstates.
description: 9 pages, 4 figures. Submitted as a conference proceeding of PHHQP 8
title: Training Early Childhood Educators to Identify Behavior Function and Select Function-Matched Interventions
Creators: name: Cox, Laura V.
Publisher: name: Utah State University
Year: 2016

description: Prior researchers have shown that school-aged staff can identify behavior function and function-matched interventions following training. Limited research has been done with preschool staff on the process of identifying function of behavior and selecting function-matched interventions to decrease problem behavior. A multiple baseline across participants’ design was used to measure preschool teachers’ accuracy of identification of behavior function and function-matched interventions. Participants analyzed descriptive data to identify function of behavior and select function-matched interventions. Results from this study demonstrated that preschool teachers can independently identify function-matched and nonfunction matched interventions with greater accuracy after training.
Remarks on the Cauchy functional equation and variations of it
Creators: name: Reem, Daniel
Publisher: name: arXiv
Year: 2010
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: G.1.2; I.1.m
subject: 39B52, 43A22, 39B22, 39B05, 26B99, 22B99

description: This paper examines various aspects related to the Cauchy functional equation $f(x+y)=f(x)+f(y)$, a fundamental equation in the theory of functional equations. In particular, it considers its solvability and its stability relative to subsets of multi-dimensional Euclidean spaces and tori. Several new types of regularity conditions are introduced, such as a one in which a complex exponent of the unknown function is locally measurable. An initial value approach to analyzing this equation is considered too and it yields a few by-products, such as the existence of a non-constant real function having an uncountable set of periods which are linearly independent over the rationals. The analysis is extended to related equations such as the Jensen equation, the multiplicative Cauchy equation, and the Pexider equation. The paper also includes a rather comprehensive survey of the history of the Cauchy equation.
description: To appear in Aequationes Mathematicae (important remark: the acknowledgments section in the official paper exists, but it appears before the appendix and not before the references as in the arXiv version); correction of a minor inaccuracy in Lemma 3.2 and the initial value proof of Theorem 2.1; a few small improvements in various sections; added thanks
Revitalizing secondary school structures
Creators: name: Middleton, Michael
Publisher: name: University Of Tasmania
Year: 2023

description: Part One sets the context for the thesis. It describes the difficulties Australian secondary schools had in responding to the need for change during the social and economic changes of the late 1970s and early 1980s. Local initiatives, encouraged during the 1970s, were generally ineffective in generating significant or widespread changes. Encouraged by the Commonwealth Schools Commission's funding for Projects of National Significance, attempts have been made to generate more permeating changes in Australian secondary education. The writer was involved as initiator and director of one of these projects. Titled Revitalizing Secondary School Structures, this project provided the impetus and much of the data for the author's subsequent involvement in the Commonwealth Schools Commission's Secondary Education Project. Part Two is the final draft of a discussion paper submitted to the Commonwealth Schools Commission in May 1986. The author was commissioned in August 1985 and was provided with funds to employ three co-workers to assist him in data collection and in consultations in the states. These people were employed, two of them half time, from November 1985 until April 1986. From these consultations and observations, the author drafted a number of working papers which were discussed with members of the Commonwealth Schools Commission before this final draft was submitted to the Commission in May 1986. The author wrote all of this draft with the exception of the final two sections titled \Systems\" and \"Implications for the Commonwealth\" (pages 150 to 193) which were written by Marie Brennan in consultation with the author. The final draft of the discussion paper was tabled with the Schools Commission and was later revised by the author in partnership with Marie Brennan and the editor Christine Davies. The revised published version titled Making the Future: The Role of Secondary Education in Australia was released in November 1986 and marketed through Prentice Hall. Part Three represents the author's reflections on some major issues in Making the future: The Role of Secondary Education in Australia in the light of similar issues in work by Hargreaves in the United Kingdom and by Goodlad in the United States."
title: Effects of Acceptance and Commitment Therapy on Impulsive Decision Making
Creators: name: Morrison, Kate L.
Publisher: name: Utah State University
Year: 2016

description: Delay discounting is a measure of impulsive decision making that is associated with different forms of problem behavior. This study examined the transdiagnostic effect of Acceptance and Commitment Therapy (ACT) on delay discounting in a community sample. Forty adults were randomized into eight individual sessions of ACT or an inactive control. Participants completed pre-, mid-, and post-assessments for delay discounting, psychological flexibility, distress tolerance, overall psychological symptoms, behavior change, and valued living. Data were analyzed with multilevel modeling of growth curves. Significant interaction effects of time and condition were present for psychological flexibility, distress tolerance, psychological symptoms, and the obstruction subscale of valued living. No significant interaction effect was found for two delay discounting tasks nor the progression subscale of valued living. The ACT condition had a significantly larger reduction of problem behavior at post-, but not mid-assessment. Treatment was provided in a competent and ACT-consistent manner and was rated as highly satisfactory by treatment completers. The results support use of ACT as a transdiagnostic treatment. The lack of changes in delay discounting are in contrast to previous research. The clinical implications of delay discounting need to be explored further.
Study of $B\to K^{(*)} \ell^+\ell^-$ Decays in the Family Non-universal $Z'$ Models
Creators: name: Chiang, Cheng-Wei
name: Li, Run-Hui
name: Lü, Cai-Dian
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In a combined investigation of the $B\to K^{(*)}\ell^+\ell^-$ decays, constraints on the related couplings in family non-universal $Z^{\prime}$ models are derived. We find that within the allowed parameter space, the recently observed forward-backward asymmetry in the $B\to K^*\ell^+\ell^-$ decay can be explained, by flipping the signs of the Wilson coefficients $C_9^{\rm eff}$ and $C_{10}$. With the obtained constraints, we also calculate the branching ratio of the $B_s\toμ^+μ^-$ decay. The upper bound of our prediction is near the upper bound given by CDF Collaboration recently.
description: 19 pages, 4 figures, some errors corrected; Journal version
Photometric/spectroscopic analyses and magnetic activity in young late-type stars
Creators: name: Biazzo, K.
name: Frasca, A.
name: Marilli, E.
name: Covino, E.
name: Alcala', J. M.
name: Cakirli, O.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the work in progress of a study based on photometric and spectroscopic observations of young Weak-line T Tauri and Post T Tauri stars just attiving on the Zero Age Main Sequence. This study is part of a project based on high-resolution spectra obtained with FOCES@CAHA (Spain) and SARG@TNG (Spain) and contemporaneous photometry performed at Catania (Italy) and Ege (Turkey) observatories. The main aim is to investigate the topology of magnetic active regions at photospheric and chromospheric levels in young single stars. Since our targets are slow rotators (vsini < 25 km/s), corresponding to rotation periods larger than about 2 days, we are able to apply the spectroscopic technique based on line-depth ratio for the measure of the photospheric temperature modulation. These stars, possible members of Stellar Kinematic Groups, display emission cores in the CaII H&K and IRT lines, as well as a conspicuous filling-in of the Halpha core. Moreover, we detect absorption of the HeI-D3 line, coming from the upper chromospheric layers, derive the lithium abundance (age indicator), and measure the rotational and radial velocities. We find a clear rotational modulation, due to photospheric spots, both in the light and the temperature curves. The Halpha and the CaII-IRT emissions display a fair variation correlated with the rotation. Finally, we are developing a spot/plage model to reproduce the data and derive the spot parameters (namely, filling factor and temperature) and to recover information about the chromospheric inhomogeneities (flux contrast and filling factor). This study is very important to explore the correlations between global stellar parameters (e.g., surface gravity, effective temperature) and spot/plage characteristics in stars with different activity level and evolutionary stage.
description: 4 pages, 4 figures, poster paper presented at the Cool Stars 15 (St. Andrews, Scotland), to be published in the Conference Proceedings Series of the American Institute of Physics (AIP)
title: Agricultural Nitrogen Management Affects Microbial Communities, Enzyme Activities, and Functional Genes for Nitrification and Nitrogen Mineralization
Creators: name: Ouyang, Yang
Publisher: name: Utah State University
Year: 2016

description: The transformations of organic nitrogen to ammonium and nitrate are central processes in the internal soil nitrogen cycle. In most agricultural soils, ammonium is rapidly oxidized to nitrate in the process known as nitrification; often leading to loss of nitrate from the system. Nitrification is mediated by ammonia oxidizing bacteria or archaea, and nitrite oxidizing bacteria. Understanding links between process rates, enzyme activities and the communities of microbes that cycle nitrogen may contribute to sustainable management.
Our main objective was to determine the impacts of contrasting nitrogen management on soil microbial communities, enzyme activities, and functional genes for nitrification and nitrogen mineralization in a Utah agricultural system. Process rates and activities were measured in laboratory potential assays and 15N isotope pool dilution experiments. The abundance and diversity of genes involved in nitrification and nitrogen mineralization were examined using quantitative real-time PCR, pyrosequencing, clone libraries, and metagenomics. Key enzymes and their relevant marker genes included ammonia monooxygenase (amoA), nitrite oxidoreductase (nxrB), protease (npr and sub), chitinase (chiA), and urease (ureC). The overall soil microbial community composition was assessed targeting ribosomal genes.
Ammonia oxidizing bacteria were more responsive than archaea to ammonium fertilizers while the archaea were competitive under low ammonium levels. The relative contribution of ammonia oxidizing archaea to nitrification increased with increasing temperature and their activity had a higher temperature optimum than bacteria. The abundance of ammonia oxidizers in the organic farming system increased with organic nitrogen fertilizers and their activity was higher in manure than in compost treated soil. Nitrogen fertilizers strongly stimulated the rates of potential nitrite oxidation. Nitrospira was the only known nitrite oxidizer genus recovered from any soil sample. The application of organic nitrogen fertilizers, but not inorganic, increased the diversity of the prokaryotic community and the activities of soil enzymes. In the organic farming system, abundances of functional genes for mineralization were increased by organic nitrogen fertilizer and these abundances were significantly correlated with corresponding enzyme activity. Understanding the link between microbial communities and the biogeochemical functions of nitrification and mineralization may allow ecosystem models to incorporate microorganisms as dynamic components driving nitrogen flux.
Cannon-Thurston Maps for Kleinian Groups
Creators: name: Mj, Mahan
Publisher: name: arXiv
Year: 2010
Subjects: subject: Geometric Topology (math.GT)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 57M50, 20F67 (Primary), 20F65, 22E40 (Secondary)

description: We show that Cannon-Thurston maps exist for degenerate free groups without parabolics, i.e. for handlebody groups. Combining these techniques with earlier work proving the existence of Cannon-Thurston maps for surface groups, we show that Cannon-Thurston maps exist for arbitrary finitely generated Kleinian groups without parabolics, proving conjectures of Thurston and McMullen. We also show that point pre-images under Cannon-Thurston maps for degenerate free groups without parabolics correspond to end-points of leaves of an ending lamination in the Masur domain, whenever a point has more than one pre-image. This proves a conjecture of Otal. We also prove a similar result for point pre-images under Cannon-Thurston maps for arbitrary finitely generated Kleinian groups without parabolics.
description: 39 pgs 1 fig. Final version incorporating referee comments. To appear in Forum of Mathematics, Pi
Real-Space Imaging of Inelastic Friedel-like Surface Oscillations Emerging from Molecular Adsorbates
Creators: name: Gawronski, H.
name: Fransson, J.
name: Morgenstern, K.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We report real space imaging measurements of inelastic Friedel oscillations. The inelastic electron tunneling spectroscopy, using scanning tunneling microscopy, around dimers of dichlorobenze adsorbates on Au(111) surface display clear spatial modulations that we attribute to inelastic scattering at the molecular sites caused by molecular vibrations. Due to local interactions between the adsorbate and the surface states, the molecular vibrations generate a redistribution of the charge density at energies in a narrow range around the inelastic mode. Our experimental findings are supported by theoretical arguments.
description: 4 pages, 4 figures
Reputation management in the Salvation Army in Australia : a multi-stakeholder analysis
Creators: name: Middleton, SA
Publisher: name: University Of Tasmania
Year: 2023

description: This work provides an insight into how reputation is managed by The Salvation Army across multiple stakeholder groups. These stakeholders include the media, government, donors, volunteers, and clients - groups with differing needs, wants, and desires. The thesis constructs an argument that The Salvation Army in Australia manages its reputation simultaneously across these stakeholder groups through the management of narrative. In this instance, narrative become a key tool of communication, but also serves to frame the understanding of external stakeholders. Using a strategy of deconstruction (Boje, 2001), the thesis argues that the constructed Salvation Army narrative serves as a reputational barrier for the organisation in that it acts as a mirror to avert the gaze of external stakeholders. It is argued that The Salvation Army works under the intersecting gaze of a panopticon of government, donors, media, volunteers, and clients. In this panopticon, stakeholders have the power to discipline The Salvation Army through causing damage to their reputation should Salvation Army practices fall outside societal norms. However, the narrative mirror serves as a reputational barrier for The Salvation Army by reflecting the gaze of external stakeholders. Key messages and themes in the narrative frame Salvationists as kind and caring purveyors of the truth, and serve to sell constituencies with a central propaganda that they need the Salvos in order to have a functioning welfare system. Thus, the narrative of The Salvation Army as constructed in this thesis is powerful in that it manages the meaning of external stakeholders so that they construct a positive reputation for The Salvation Army.
title: Physically Based Modeling of the Impacts of Climate Change on Streamflow Regime
Creators: name: Sazib, Nazmus Shams
Publisher: name: Utah State University
Year: 2016

description: Understanding the implications of climate change on streamflow regime is complex as changes in climate vary over space and time. However, a better understanding of the impact of climate change is required for identifying how stream ecosystems vulnerable to these changes, and ultimately to guide the development of robust strategies for reducing risk in the face of changing climatic conditions. Here I used physically based hydrologic modeling to improve understanding of how climate change may impact streamflow regimes and advance some of the cyberinfrastructure and GIS methodologies that support physically based hydrologic modeling by: (1) using a physically based model to examine the potential effects of climate change on ecologically relevant aspects of streamflow regime, (2) developing data services in support of input data preparation for physically based distributed hydrologic models, and (3) enhancing terrain analysis algorithms to support rapid watershed delineation over large area. TOPNET, a physically based hydrologic model was applied over eight watersheds across the U.S to assess the sensitivity and changes of the streamflow regime due to climate change. Distributed hydrologic models require diverse geospatial and time series inputs, the acquisition and preparation of which are labor intensive and difficult to reproduce. I developed web services to automate the input data preparation steps for a physically based distributed hydrological model to enable water scientist to spend less time processing input data. This input includes terrain analysis and watershed delineation over a large area. However, limitations of current terrain analysis tools are (1) some support only a limited set of specific raster and vector data formats, and (2) all that we know of require data to be in a projected coordinate system. I enhanced terrain analysis algorithms to extend their generality and support rapid, web-based watershed delineation services. Climate change studies help to improve the scientific foundation for conducting climate change impacts assessments, thus building the capacity of the water management community to understand and respond to climate change. Web-based data services and enhancements to terrain analysis algorithms to support rapid watershed delineation will impact a diverse community of researchers involved terrain analysis, hydrologic and environmental modeling.
Delphinus delphis Linnaeus 1758
Creators: name: Aidek, Ahmad E.
name: Ibrahim, Amir
name: Amr, Zuhair
name: Hutterer, Rainer
name: Kryštufek, Boris
name: Serra, Gianluca
name: Benda, Petr
name: Shkaky, Yesra
name: Barbanera, Filippo
name: Al-Sheikhly, Omar F.
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Cetacea
Delphinidae
Delphinus
Delphinus delphis

description: 105. Common Dolphin (Inner Mediterranean subpopulation), Delphinus delphis Linnaeus, 1758
(IUCN Red List: LC)
Status: Regular; stranded dead along the coasts of Tartous, Ras Al-Baseet, Latakia, and Ibn Hani (Saad 2008) and also found swimming in Al-Baseet (Ibrahim et al. 2015) and Burj Islam (Saad et al. 2019) (Fig. 114).
description: Published as part of Aidek, Ahmad E., Ibrahim, Amir, Amr, Zuhair, Hutterer, Rainer, Kryštufek, Boris, Serra, Gianluca, Benda, Petr, Shkaky, Yesra, Barbanera, Filippo & Al-Sheikhly, Omar F., 2025, Checklist of Mammals of Syria, pp. 1-130 in Zootaxa 5580 (1) on page 103, DOI: 10.11646/zootaxa.5580.1.1, http://zenodo.org/record/14797597
Inference for the limiting cluster size distribution of extreme values
Creators: name: Robert, Christian Y.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Applications (stat.AP)
subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences
subject: 60G70, 62E20, 62M09 (Primary) 62G20, 62G32 (Secondary)

description: Any limiting point process for the time normalized exceedances of high levels by a stationary sequence is necessarily compound Poisson under appropriate long range dependence conditions. Typically exceedances appear in clusters. The underlying Poisson points represent the cluster positions and the multiplicities correspond to the cluster sizes. In the present paper we introduce estimators of the limiting cluster size probabilities, which are constructed through a recursive algorithm. We derive estimators of the extremal index which plays a key role in determining the intensity of cluster positions. We study the asymptotic properties of the estimators and investigate their finite sample behavior on simulated data.
description: Published in at http://dx.doi.org/10.1214/07-AOS551 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Observing Neutral Hydrogen Above Redshift 6: The "Global" Perspective
Creators: name: Bowman, Judd D.
name: Rogers, Alan E. E.
name: Hewitt, Jacqueline N.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Above redshift 6, the dominant source of neutral hydrogen in the Universe shifts from localized clumps in and around galaxies and filaments to a pervasive, diffuse component of the intergalactic medium (IGM). This transition tracks the global neutral fraction of hydrogen in the IGM and can be studied, in principle, through the redshifted 21 cm hyperfine transition line. During the last half of the reionization epoch, the mean (global) brightness temperature of the redshifted 21 cm emission is proportional to the neutral fraction, but at earlier times (10 < z < 25), the mean brightness temperature should probe the spin temperature of neutral hydrogen in the IGM. Measuring the (of order 10 mK) mean brightness temperature of the redshifted 21 cm line as a function of frequency (and hence redshift) would chart the early evolution of galaxies through the heating and ionizing of the IGM by their stellar populations. Experiments are already underway to accomplish this task or, at least, provide basic constraints on the evolution of the mean brightness temperature. We provide a brief overview of one of these projects, the Experiment to the Detect the Global EOR Signature (EDGES), and discuss prospects for future results.
description: From AIP Conference Proceedings, Volume 1035, 2008, "The Evolution of Galaxies through the Neutral Hydrogen Window". 3 pages
title: Revegetation of Bulrushes Bolboschoenus Maritimus, Schoenoplectus Acutus, and S. Americanus in Great Salt Lake Wetlands: Seed Biology and Influence of Environmental Factors on Rhizomes
Creators: name: Marty, James
Publisher: name: Utah State University
Year: 2016

description: A primary goal of ecological restoration is to establish desirable plant species. This goal is particularly important following the removal of invasive plants. Understanding biological traits of plant species important to revegetation is crucial to plant establishment. In the globally important Great Salt Lake (GSL) wetlands, native habitat-forming bulrushes Bolboschoenus maritimus, Schoenoplectus acutus, and S. americanus are frequently displaced by the invasive grass Phragmites australis. Successful revegetation of bulrushes relies on improving our understanding of seed dormancy break, seed germination requirements, and the environmental factors affecting rhizome emergence and growth. We used a series of germination chamber and greenhouse experiments to examine effective seed dormancy break treatments and germination conditions for multiple collection sites of bulrushes B. maritimus, S. acutus, and S. americanus. We also performed a greenhouse experiment to investigate how water depth, nutrient, and salinity levels affect B. maritimus and S. acutus emergence and growth from rhizomes. Cold, moist stratification and bleach scarification were effective dormancy break treatments for all species, though magnitude of effect varied by species and source site. Soaking the seeds after application of dormancy break treatments improved germination for all species. Rhizome emergence of S. acutus was negatively affected by high water depth, likely due to oxygen limitation. Bolboschoenus maritimus was salinity tolerant relative to S. acutus. GSL wetland managers can use these findings to improve revegetation projects via seeding and planting.
Studies on the synthesis of biologically active, small molecule natural products
Creators: name: Molesworth, PP
Publisher: name: University Of Tasmania
Year: 2023

description: Common potato scab affects potato farmers worldwide and costs the Tasmanian potato farming industry approximately $5 million dollars a year. The disease is caused in white potatoes by the common soil bacterium streptomyces scabies, from which several secondary metabolites have been isolated; these are known as the thaxtomin class of phytotoxins. These compounds have been shown to cause scabs in potatoes in sterile conditions and are phytotoxic to cellulose based plants. Several approaches to the total synthesis of the thaxtomins have been investigated. The most successful proceeds via the synthesis of 4-nitrotryptophan, followed by peptide coupling and cyclisation to give two of the three dehydroxy-thaxtomins. Other routes starting from glycine anhydride using condensation chemistry to build the three ring system have provided a series of analogues for structure activity testing. Toxicity of the analogues and synthetic thaxtomins has been analysed using Arabidopsis thaliana. Two analogues showed activity approaching thaxtomin A and show promise as potential new herbicides. Non-toxic analogues have been tested for their ability to ameliorate or negate the effects of thaxtomin A using a variety of models. These compounds provide a possible solution to the scab problem. Current methods for the synthesis of the pyrrolidine antibiotic anisomycin are complicated and rely on the preparation of a 3-pyrroline intermediate. Two novel methods to target this advanced intermediate are discussed, firstly use of a Zn/HCI reduction of a a-ketopyrrole, and secondly the reduction of N-tosyl pyrroles with TFA/NaCNBH3 . The use of N-toysl protected 3-pyrrolines as building blocks towards hydroxyl substituted pyrrolidines is also explored. Synthesis of gram quantities of the C19 and C21 triene sex pheromones of the autumn gum moth (Mnesampe/a private) has proved difficult because of the tendency of the trienes to decompose through auto oxidation. We present an approach to the synthesis of these compounds by spiking the starting material with the antioxidant BHT and carrying it through the reaction scheme. This enables a significant improvement in the overall yield of the desired product, which increased from 20% without the antioxidant to 86% with.
Formation of Nuclear "Pasta" in Supernovae
Creators: name: Watanabe, Gentaro
name: Sonoda, Hidetaka
name: Maruyama, Toshiki
name: Sato, Katsuhiko
name: Yasuoka, Kenji
name: Ebisuzaki, Toshikazu
Publisher: name: arXiv
Year: 2009
Subjects: subject: Nuclear Theory (nucl-th)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: In supernova cores, nuclear "pasta" phases such as triangular lattice of rod-like nuclei and layered structure of slab-like nuclei are considered to exist. However, it is still unclear whether or not they are actually formed in collapsing supernova cores. Using {\it ab-initio} numerical simulations called the Quantum Molecular Dynamics (QMD), we here solve this problem by demonstrating that a lattice of rod-like nuclei is formed from a bcc lattice by compression. We also find that, in the transition process, the system undergoes zigzag configuration of elongated nuclei, which are formed by a fusion of two original spherical nuclei.
description: 4 pages, 3 figures, to appear in Phys. Rev. Lett. as an Editors' Suggestion
title: Plasma Velocity Vector Instrument for Small Satellites (PVVISS)
Creators: name: Hatch, William Smith
Publisher: name: Utah State University
Year: 2016

description: Low-earth orbit (LEO) contains plasma which can impact satellite charging and radio frequency (RF) communications. Quantifying both the composition and movement of ions in LEO can improve efficiency of the forecasting models that predict the impact plasma will have on satellite communications and accuracy of global positioning satellite measurements.
Two instruments known as the Retarding Potential Analyzer (RPA) and the Ion Drift Meter (IDM) have been used in tandem to measure ionospheric properties including ion temperature, velocity, and density. These instruments are costly and occupy large areas on a spacecraft. In recent years, space mission budgets have diminished. This change has driven innovation towards creating new instruments which are compatible with smaller and cheaper satellites yet still yield measurements of comparable quality. This thesis presents the design of a new instrument that encompasses the functionality of both the RPA and IDM, known as the Plasma Velocity Vector Instrument for Small Satellites (PVVISS). PVVISS has compact form factor and low power requirements, making it a viable option for smaller, low cost nano-satellite sized missions. Missions utilizing the PVVISS sensor will allow increased exploration of the ionospheric impact on satellite communications.