cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Sauntering into new fields: Henry David Thoreau and the sociological imagination
Creators: name: Bingham, Shawn Chandler
Publisher: name: American University
Year: 2023

description: Theorists have argued that the canons within sociology are socially constructed and function to legitimate a certain type of sociology (Lengermann and Niebrugge-Brantley 1998). Sociology needs to examine the formulation and application of canonical criteria and consider the costs of excluding relevant thinkers from sociological dialogue. This project attempted to apply current canonical criteria to a thinker whose works have been considered by economics, philosophy, natural history, environmental studies and literature, but not sociology---Henry David Thoreau. Using C. W. Mills' (1959) concept of sociological imagination and Peter Berger's (1963) "motifs" as criteria latent content analysis was conducted on Thoreau's writings to determine his relevance to sociology. Analysis of Thoreau's writings found that he addressed the questions Mills believed were asked by those possessing the sociological imagination, which focused on the structure of society, the place of a particular society in history, and the people that prevail in a particular period. To answer these questions, Thoreau explored how capitalism, government and modern definitions of economic, technological, political and scientific progress enslaved the individual. Thoreau's works demonstrate that his approach to analyzing society correspond to Berger's "motifs." Thoreau attempted to look beyond commonly excepted social goals and meanings behind human activity (the debunking motif). He was distasteful of provincialism and was aware of how the American economic system was producing certain type of individuals (relativization motif). He made an effort to explore other cultural value systems and experimented with new ways of living (cosmopolitan motif). Finally, he recognized a variety of social classes by hosting visitors from all walks of life, and exploring a number of non-mainstream arenas, including the jail cell (unrespectability motif). Like Mills and Berger, Thoreau recognized the dangers of "abstracted empiricism" and the mechanical dryness of science. His ability to integrate empiricism with a more humanistic approach demanded by Mills and Berger needs to be explored by sociology. Current canonical criteria need to be deconstructed and applied to thinkers who have not been considered relevant to sociology. Further analysis of Thoreau's work to determine unique contributions he might make to sociology needs to be conducted.
Classification of Photospheric Emission in Short GRBs
Creators: name: Dereli-Bégué, Hüsne
name: Pe'er, Asaf
name: Ryde, Felix
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In order to better understand the physical origin of short duration gamma-ray bursts (GRBs), we perform time-resolved spectral analysis on a sample of 70 pulses in 68 short GRBs with burst duration $T_{90}\lesssim2$ s detected by the \textit{Fermi}/GBM. We apply a Bayesian analysis to all spectra that have statistical significance $S\ge15$ within each pulse and apply a cut-off power law (CPL) model. We then select in each pulse the timebin that has the maximal value of the low energy spectral index, %$α_{\rm max}$, for further analysis. Under the assumption that the main emission mechanism is the same throughout each pulse, such an analysis is indicative of pulse emission. We find that $\sim$1/3 of short GRBs are consistent with a pure, non-dissipative photospheric model, at least, around the peak of the pulse. This fraction is larger compare to the corresponding one (1/4) obtained for long GRBs. For these bursts, we find (i) a bi-modal distribution in the values of the Lorentz factors and the hardness ratios; (ii) an anti-correlation between $T_{90}$ and the peak energy, $E_{\rm pk}$: $T_{90} \propto E_{\rm pk}^{-0.50\pm0.19}$. This correlation disappears when we consider the entire sample. Our results thus imply that the short GRB population may in fact be composed of two separate populations: one being a continuation of the long GRB population to shorter durations, and the other one being distinctly separate with different physical properties. Furthermore, thermal emission is initially ubiquitous, but is accompanied at longer times by additional radiation (likely synchrotron).
description: 24 pages, 20 figures, one table, accepted for publication in Ap.J. on the 4th of June 2020
The World Coarse Grain Market-Government Intervention and Multilateral Policy Reform
Creators: name: Hyberg, Bengt
name: Mercier, Stephanie
name: Hoffman, Linwood A.
name: Hyberg, Bengt
name: Mercier, Stephanie
name: Hoffman, Linwood A.
Publisher: name: Unknown
Year: 1990
Subjects: subject: Agricultural and Food Policy
subject: Crop Production/Industries
subject: International Relations/Trade
subject: Trade liberalization
subject: coarse grains
subject: policy reform
subject: government intervention
subject: world trade
subject: international markets

description: The production, consumption, and trade of coarse grains have been shaped by domestic government policies such as price and income supports, input subsidies, and trade policies such as export subsidies, quotas, and variable levies. Recent studies suggest that world efficiency gains from agricultural trade reform could be substantial. Research suggests that phasing down worldwide government support and protection of agriculture would increase world coarse grain trade and raise coarse grain prices. World coarse grain production and consumption would rise slightly. The United States and Argentina would gain most in trade as the EC- 12, Canada, and China exports contract, with the EC-12 and China becoming net importers.
Additional file 1 of CSACI guidelines for the ethical, evidence-based and patient-oriented clinical practice of oral immunotherapy in IgE-mediated food allergy
Creators: name: Bégin, P.
name: E. S. Chan
name: H. Kim
name: M. Wagner
name: M. S. Cellier
name: C. Favron-Godbout
name: E. M. Abrams
name: M. Ben-Shoshan
name: S. B. Cameron
name: S. Carr
name: D. Fischer
name: A. Haynes
name: S. Kapur
name: M. N. Primeau
name: J. Upton
name: T. K. Vander Leek
name: M. M. Goetghebeur
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1. Supplementary appendices.
Boundary contributions to specific heat and susceptibility in the spin-1/2 XXZ chain
Creators: name: Furusaki, A.
name: Hikihara, T.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Exact low-temperature asymptotic behavior of boundary contribution to specific heat and susceptibility in the one-dimensional spin-1/2 XXZ model with exchange anisotropy 1/2 < Δ\le 1 is analytically obtained using the Abelian bosonization method. The boundary spin susceptibility is divergent in the low-temperature limit. This singular behavior is caused by the first-order contribution of a bulk leading irrelevant operator to boundary free energy. The result is confirmed by numerical simulations of finite-size systems. The anomalous boundary contributions in the spin isotropic case are universal.
description: 6 pages, 3 figures; corrected typos
$Fe_{0.5}Cu_{0.5}(Ba_{1-x}Sr_{x})_2YCu_2O_{7+δ}$ ($x$ = 0, 0.5 and 1) superconductors prepared by high pressure synthesis
Creators: name: Ren, Z. A.
name: Che, G. C.
name: Ni, Y. M.
name: Dong, C.
name: Chen, H.
name: Jia, S. L.
name: Zhao, Z. X.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: In this paper, the $Fe$-containing superconductors $Fe_{0.5}Cu_{0.5}Ba_2YCu_2O_{7+δ}$, $Fe_{0.5}Cu_{0.5}BaSrYCu_2O_{7+δ}$ and $Fe_{0.5}Cu_{0.5}Sr_2YCu_2O_{7+δ}$ were successfully prepared by common solid-state reaction followed with a procedure of high pressure synthesis. The structural change and superconducting properties in $(Fe_xCu_{1-x})BaSrYCu_2O_{7+δ}$ ($x$ = 0 $\sim$ 1.0) systems were also investigated. Annealing experiments indicate that the occurrence of superconductivity in $Fe_{0.5}Cu_{0.5}(Ba_{1-x}Sr_{x})_2YCu_2O_{7+δ}$ ($x$ = 0, 0.5 and 1) systems is mainly induced by the procedure of high pressure synthesis, which causes the increase of oxygen content and the redistribution of $Fe$ atoms between $Cu(1)$ and $Cu(2)$ sites, but not from possible secondary phase of $YBa_2Cu_3O_{7-δ}$, $YBaSrCu_3O_{7-δ}$ or $YSr_2Cu_3O_{7-δ}$ superconductors.
description: 5 pages, 9 figures, accepted by Physical Review B
INFLATION AND U.S. AGRICULTURE: A GENERAL EQUILIBRIUM ANALYSIS OF THE EVENTS OF 1973
Creators: name: Shei, Shun- Yi
name: Thompson, Robert L.
name: Shei, Shun- Yi
name: Thompson, Robert L.
Publisher: name: Unknown
Year: 1979
Subjects: Financial Economics

description: An open general equilibrium econometric model of the U.S. economy, including a monetary sector, is used to decompose observed 1973 sectoral and aggregate price increases. In decreasing order the major causes found were: U.S. monetary expansion, the Soviet grain deal, dollar devaluation and the world crop. failure.
Dynamic neutron imaging of argon bubble flow in liquid gallium in external magnetic field
Creators: name: Birjukovs, Mihails
name: Dzelme, Valters
name: Jakovics, Andris
name: Thomsen, Knud
name: Trtik, Pavel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Image and Video Processing (eess.IV)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper presents detailed results of neutron imaging of argon bubble flows in a rectangular liquid gallium vessel with and without the application of external horizontal magnetic field. The developed image processing algorithm is presented and its capability to extract physical information from images of low signal-to-noise ratio is demonstrated. Bubble parameters, velocity components, trajectories and relevant statistics were computed and analysed. A simpler version of the code was applied to the output of computational fluid dynamics simulations that reproduced the experiment. This work serves to further validate the neutron radiography as a suitable method for monitoring gas bubble flow in liquid metals, as well as to outline procedures that might help others to extract data from neutron radiography images with a low signal-to-noise ratio resulting from high frame rate acquisitions required to resolve rapid bubble motion.
description: 7 pages, 6 figures. This is a preprint for the original paper: IOS Press, International Journal of Applied Electromagnetics and Mechanics, M. Birjukovs et al., Argon Bubble Flow in Liquid Gallium in External Magnetic Field, accepted for publication and pending print (DOI: 10.3233/JAE-209116)
Economic and Technical Adjustments in Irrigation Due to Declining Ground Water
Creators: name: Crosswhite, William
name: Dickason, Clif
name: Pfeiffer, Robert
name: Crosswhite, William
name: Dickason, Clif
name: Pfeiffer, Robert
Publisher: name: Unknown
Year: 1990
Subjects: subject: Agricultural and Food Policy
subject: Resource /Energy Economics and Policy
subject: Irrigation
subject: irrigation systems
subject: water use
subject: water supply
subject: water conservation
subject: ground water mining
subject: farm adjustments

description: This report examines the changes that irrigators are likely to make as the cost of water rises due to increasing pumping lift and decreasing well yields in areas with ground water miningA A decline in ground water supplies exerts pressure on irrigators to adjust irrigation systems and production practices in order to increase the efficiency of irrigation water use. The adjustment strategies of irrigators are expected to respond to changing water costs and supply conditions. In the early stages of ground water decline, new wells, improved pumps, water conservation practices, and improved irrigation systems are used to maintain the availability of water in the short run and to conserve water. The crop mix is altered as water becomes increasingly costly to pump, and may ultimately revert to rain-fed or dryland farming.
Speed-up Quantum Perceptron via Shortcuts to Adiabaticity
Creators: name: Ban, Yue
name: Chen, Xi
name: Torrontegui, E.
name: Solano, E.
name: Casanova, J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The quantum perceptron is a fundamental building block for quantum machine learning. This is a multidisciplinary field that incorporates abilities of quantum computing, such as state superposition and entanglement, to classical machine learning schemes. Motivated by the techniques of shortcuts to adiabaticity, we propose a speed-up quantum perceptron where a control field on the perceptron is inversely engineered leading to a rapid nonlinear response with a sigmoid activation function. This results in faster overall perceptron performance compared to quasi-adiabatic protocols, as well as in enhanced robustness against imperfections in the controls.
description: 7 pages, 5 figures + Supplemental Material
Sauntering into new fields: Henry David Thoreau and the sociological imagination
Creators: name: Bingham, Shawn Chandler
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 44
subject: Human society
classificationCode: 4410
subject: Sociology
subject: FOS: Sociology

description: Theorists have argued that the canons within sociology are socially constructed and function to legitimate a certain type of sociology (Lengermann and Niebrugge-Brantley 1998). Sociology needs to examine the formulation and application of canonical criteria and consider the costs of excluding relevant thinkers from sociological dialogue. This project attempted to apply current canonical criteria to a thinker whose works have been considered by economics, philosophy, natural history, environmental studies and literature, but not sociology---Henry David Thoreau. Using C. W. Mills' (1959) concept of sociological imagination and Peter Berger's (1963) "motifs" as criteria latent content analysis was conducted on Thoreau's writings to determine his relevance to sociology. Analysis of Thoreau's writings found that he addressed the questions Mills believed were asked by those possessing the sociological imagination, which focused on the structure of society, the place of a particular society in history, and the people that prevail in a particular period. To answer these questions, Thoreau explored how capitalism, government and modern definitions of economic, technological, political and scientific progress enslaved the individual. Thoreau's works demonstrate that his approach to analyzing society correspond to Berger's "motifs." Thoreau attempted to look beyond commonly excepted social goals and meanings behind human activity (the debunking motif). He was distasteful of provincialism and was aware of how the American economic system was producing certain type of individuals (relativization motif). He made an effort to explore other cultural value systems and experimented with new ways of living (cosmopolitan motif). Finally, he recognized a variety of social classes by hosting visitors from all walks of life, and exploring a number of non-mainstream arenas, including the jail cell (unrespectability motif). Like Mills and Berger, Thoreau recognized the dangers of "abstracted empiricism" and the mechanical dryness of science. His ability to integrate empiricism with a more humanistic approach demanded by Mills and Berger needs to be explored by sociology. Current canonical criteria need to be deconstructed and applied to thinkers who have not been considered relevant to sociology. Further analysis of Thoreau's work to determine unique contributions he might make to sociology needs to be conducted.
Fast X-ray Transients and Their Connection to Gamma-Ray Bursts
Creators: name: Arefiev, Vadim A.
name: Priedhorsky, William C.
name: Borozdin, Konstantin N.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Fast X-ray transients (FXTs) with timescales from seconds to hours have been seen by numerous space instruments. We have assembled archival data from Ariel-5, HEAO-1 (A-1 and A-2), WATCH, ROSAT, and Einstein to produce a global fluence-frequency relationship for these events. Fitting the log N-log S distribution over several orders of magnitude to simple power law we find a slope of -1.0. The sources of FXTs are undoubtedly heterogeneous, the -1 power law is an approximate result of the summation of these multiple sources. Two major contributions come from gamma-ray bursts and stellar flares. Extrapolating from the BATSE catalog of GRBs, we find that the fraction of X-ray flashes that can be the X-ray counterparts of gamma-ray bursts is a function of fluence. Certainly most FXTs are not counterparts of standard gamma-ray bursts. The fraction of FXTs from non-GRB sources, such as magnetic stars, is greatest for the faintest FXTs. Our understanding of the FXT phenomenon remains limited and would greatly benefit from a large, homogeneous data set, which requires a wide-field, sensitive instrument.
description: 36 pages, 8 figures
Additional file 1 of Genotype-phenotype correlations of adult-onset PLA2G6-associated Neurodegeneration: case series and literature review
Creators: name: Yung-Tsai Chu
name: Han-Yi Lin
name: Pei-Lung Chen
name: Chin-Hsien Lin
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy
subject: 60506 Virology

description: Additional file 1 Supplementary Table 1. The 40 candidate genes involved in PD and related neurodegenerative disorders that were used for targeted NGS in the study.
Success in university-required mathematics courses: An investigation of students with learning disabilities
Creators: name: Evans, Brooke Ellen
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 39
subject: Education
classificationCode: 3901
subject: Curriculum and pedagogy
classificationCode: 3903
subject: Education systems

description: The number of students with learning disabilities attending institutions of higher education has dramatically increased in the last ten years and will continue to do so. Since federal laws require appropriate accommodations for students with learning disabilities, it is important for universities to evaluate the effectiveness of their services. This study was designed to evaluate the effectiveness of a class reserved for students with learning disabilities and to identify predictors of student success. Success of students enrolled in a section of finite mathematics reserved for students with learning disabilities is compared to the success of students with learning disabilities who fulfilled their mathematics requirement in another section. It was concluded that students with learning disabilities perform better in a class reserved for students with learning disabilities than students enrolled in open sections. Student documentation, such as high school GPA, SAT scores, and intelligence test scores, were analyzed to identify predictors of student success overall and within each group. These predictors serve to help academic advisors place students with learning disabilities in the courses, based on their individual profile, which will allow them more chances for success in their university-required mathematics courses. The final component of the study included a survey of student satisfaction with accommodations. The survey showed that, overall, students with learning disabilities are satisfied with the accommodations they receive in their university-required mathematics courses. It is important to evaluate the effectiveness of accommodations and services for students with learning disabilities in university-required mathematics courses. It is also important to have a research-based method for placing students in mathematics courses with appropriate accommodations. Professors, academic counselors, and universities need to be assured that they are providing appropriate accommodations to students with learning disabilities as required by law.
Continued Fractions with Multiple Limits
Creators: name: Bowman, Douglas
name: Laughlin, James Mc
Publisher: name: arXiv
Year: 2004
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11A55

description: For integers $m \geq 2$, we study divergent continued fractions whose numerators and denominators in each of the $m$ arithmetic progressions modulo $m$ converge. Special cases give, among other things, an infinite sequence of divergence theorems, the first of which is the classical Stern-Stolz theorem. We give a theorem on a general class of Poincar{é} type recurrences which shows that they tend to limits when the limits are taken in residue classes and the roots of their characteristic polynomials are distinct roots of unity. We also generalize a curious $q$-continued fraction of Ramanujan's with three limits to a continued fraction with $k$ distinct limit points, $k\geq 2$. The $k$ limits are evaluated in terms of ratios of certain unusual $q$ series. Finally, we show how to use Daniel Bernoulli's continued fraction in an elementary way to create analytic continued fractions with $m$ limit points, for any positive integer $m \geq 2$.
description: 29 pages. Updated/new content
One-Class Graph Neural Networks for Anomaly Detection in Attributed Networks
Creators: name: Wang, Xuhong
name: Jin, Baihong
name: Du, Ying
name: Cui, Ping
name: Yang, Yupu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Nowadays, graph-structured data are increasingly used to model complex systems. Meanwhile, detecting anomalies from graph has become a vital research problem of pressing societal concerns. Anomaly detection is an unsupervised learning task of identifying rare data that differ from the majority. As one of the dominant anomaly detection algorithms, One Class Support Vector Machine has been widely used to detect outliers. However, those traditional anomaly detection methods lost their effectiveness in graph data. Since traditional anomaly detection methods are stable, robust and easy to use, it is vitally important to generalize them to graph data. In this work, we propose One Class Graph Neural Network (OCGNN), a one-class classification framework for graph anomaly detection. OCGNN is designed to combine the powerful representation ability of Graph Neural Networks along with the classical one-class objective. Compared with other baselines, OCGNN achieves significant improvements in extensive experiments.
description: 16 pages, 4 figures. Neural Comput & Applic (2021)
Diadasia (Coquillettapis) tuberculifrons Timberlake 1939
Creators: name: Pedro, Diego De
name: Ceccarelli, Fadia Sara
name: Sagot, Philippe
name: López-Reyes, Eulogio
name: Mullins, Jessica L.
name: Mérida-Rivas, Jorge A.
name: Falcon-Brindis, Armando
name: Griswold, Terry
name: Ascher, John S.
name: Gardner, Joel
name: Ayala, Ricardo
name: Vides-Borrell, Eric
name: Vandame, Rémy
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy

description: Diadasia (Coquillettapis) tuberculifrons Timberlake, 1939
[Holotype: CASC; ♂ near Westmoreland, Imperial Co., California, USA; May 31, 1930]
This species is uncommon throughout its range and is a new record for the BCS state. D. tuberculifrons specializes on pollen from plants in the genus Sphaeralcea A. St. - Hil. (Malvaceae) (Sipes & Tepedino 2005). In the BCP, it had only been recorded by the UCRC in BC in Coastal Sage Matorral in 1972. CARCIB team collected one female in the Gulf Coast in La Paz in 2019. Additionally, the BBPT collected two males in the Gulf Coast at Mulegé City in March 2021 and 37 specimens (30 ♀, 7 ♂) in the Lower Colorado Desert in June 2021. Voucher specimens are in MABC, and ECOAB. See fig. 97.
description: Published as part of Pedro, Diego De, Ceccarelli, Fadia Sara, Sagot, Philippe, López-Reyes, Eulogio, Mullins, Jessica L., Mérida-Rivas, Jorge A., Falcon-Brindis, Armando, Griswold, Terry, Ascher, John S., Gardner, Joel, Ayala, Ricardo, Vides-Borrell, Eric & Vandame, Rémy, 2024, Revealing the Baja California Peninsula's Hidden Treasures: An Annotated checklist of the native bees (Hymenoptera: Apoidea: Anthophila), pp. 1-391 in Zootaxa 5522 (1) on page 160, DOI: 10.11646/zootaxa.5522.1.1, http://zenodo.org/record/13920532
The World Poultry Market--Government Intervention and Multilateral Policy Reform
Creators: name: Bishop, Robert V.
name: Christensen, Lee A.
name: Mercier, Stephanie
name: Witucki, Larry
name: Bishop, Robert V.
name: Christensen, Lee A.
name: Mercier, Stephanie
name: Witucki, Larry
Publisher: name: Unknown
Year: 1990
Subjects: subject: International Relations/Trade
subject: Livestock Production/Industries
subject: International poultry trade
subject: trade liberalization
subject: government intervention
subject: policy reform

description: Trade liberalization by countries with industrial market economies would probably increase world trade in poultry meat products and decrease consumer prices in many countries. Thus, countries with efficient producers--such as the United States, Thailand, and Brazil--and consumers in countries with considerable protection--such as Japan, Canada, and the member countries of the European Community--would benefit the most from liberalized trade. Poultry is the fastest growing source of meat, representing about 22 percent of all meat production in 1988. The countries with industrial market economies accounted for about 54 percent of total world poultry production and 59 percent of world exports in 1988.
Contributions to the optical linewidth of shallow donor-bound excitonic transition in ZnO
Creators: name: Niaouris, Vasileios
name: D'Ambrosia, Samuel H.
name: Zimmermann, Christian
name: Wang, Xingyi
name: Hansen, Ethan R.
name: Titze, Michael
name: Bielejec, Edward S.
name: Fu, Kai-Mei C.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Neutral shallow donors in zinc oxide (ZnO) are spin qubits with optical access via the donor-bound exciton. This spin-photon interface enables applications in quantum networking, memories and transduction. Essential optical parameters which impact the spin-photon interface include radiative lifetime, optical inhomogeneous and homogeneous linewidth and optical depth. We study the donor-bound exciton optical linewidth properties of Al, Ga, and In donors in single-crystal ZnO. The ensemble photoluminescence linewidth ranges from 4-11 GHz, less than two orders of magnitude larger than the expected lifetime-limited linewidth. The ensemble linewidth remains narrow in absorption through samples with an estimated optical depth up to several hundred. The primary thermal relaxation mechanism is identified and found to have a negligible contribution to the total linewidth at 2 K. We find that inhomogeneous broadening due to the disordered isotopic environment in natural ZnO is significant, contributing 2 GHz. Two-laser spectral hole burning measurements, indicate the dominant mechanism, however, is homogeneous. Despite this broadening, the high homogeneity, large optical depth and potential for isotope purification indicate that the optical properties of the ZnO donor-bound exciton are promising for a wide range of quantum technologies and motivate a need to improve the isotope and chemical purity of ZnO for quantum technologies.
description: V. Niaouris and S. H. D'Ambrosia contributed equally to this work, 24 pages, 12 figures
AN OPERATIONAL EXTENSION OF THE LEONTIEF DYNAMIC INPUT-OUTPUT MODEL
Creators: name: Johnson, Thomas G.
name: Obermiller, Fredrick W.
name: Johnson, Thomas G.
name: Obermiller, Fredrick W.
Publisher: name: Unknown
Year: 1979
Subjects: Research Methods/ Statistical Methods

description: Although conceptually superior to its static counterpart, the dynamic input-output model has failed to achieve popularity due to its virtual inoperability. Key extensions to the Leontief dynamic model facilitate specification using numerical and simulation techniques. The extended model's operability and capabilities are demonstrated using county level data.
Diadasia (Dasiapis) ochracea
Creators: name: Pedro, Diego De
name: Ceccarelli, Fadia Sara
name: Sagot, Philippe
name: López-Reyes, Eulogio
name: Mullins, Jessica L.
name: Mérida-Rivas, Jorge A.
name: Falcon-Brindis, Armando
name: Griswold, Terry
name: Ascher, John S.
name: Gardner, Joel
name: Ayala, Ricardo
name: Vides-Borrell, Eric
name: Vandame, Rémy
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy

description: Diadasia (Dasiapis) ochracea (Cockerell, 1903)
[♂ Syntype: Las Cruces, New Mexico, USA; end of August]
This species is widely distributed in Mexico and the southwestern USA. D. ochracea specializes on pollen from plants in the genera Sphaeralcea A. St. -Hil. and Malacothamnus Green in the family Malvaceae (Sipes & Tepedino 2005). AMNH and UCRC report preserved specimen records from the Sarcocaulescent Shrubland (GBIF 2023; SCAN 2023). We reviewed five specimens from the Tropical Dry Forest (1 ♀), Cape Mountains (1 ♀), Gulf Coast (2 ♂) and Central Desert (1 ♂; CASC). Additionally, the CARCIB team collected one male in the Magdalena Plains in October 2016.And the BBPT collected 72 females and 79 males in several localities of the Coastal Sage Matorral, and one female in the Baja California Mountains at Sierra Juarez (Supplementary material 1). Voucher specimens are in MABC, and ECOAB. See fig. 97.
description: Published as part of Pedro, Diego De, Ceccarelli, Fadia Sara, Sagot, Philippe, López-Reyes, Eulogio, Mullins, Jessica L., Mérida-Rivas, Jorge A., Falcon-Brindis, Armando, Griswold, Terry, Ascher, John S., Gardner, Joel, Ayala, Ricardo, Vides-Borrell, Eric & Vandame, Rémy, 2024, Revealing the Baja California Peninsula's Hidden Treasures: An Annotated checklist of the native bees (Hymenoptera: Apoidea: Anthophila), pp. 1-391 in Zootaxa 5522 (1) on page 162, DOI: 10.11646/zootaxa.5522.1.1, http://zenodo.org/record/13920532
Short branch cut approximation in $2$D Hydrodynamics with Free Surface
Creators: name: Dyachenko, A. I.
name: Dyachenko, S. A.
name: Lushnikov, P. M.
name: Zakharov, V. E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Pattern Formation and Solitons (nlin.PS)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: A potential motion of ideal incompressible fluid with a free surface and infinite depth is considered in two-dimensional geometry. A time-dependent conformal mapping of the lower complex half-plane of the auxiliary complex variable $w$ into the area filled with fluid is performed with the real line of $w$ mapped into the free fluid's surface. The fluid dynamics can be fully characterized by the motion of the complex singularities in the analytical continuation of both the conformal mapping and the complex velocity. We consider the short branch cut approximation of the dynamics with the small parameter being the ratio of the length of the branch cut to the distance between its center and the real line of $w$. We found that the fluid dynamics in that approximation is reduced to the complex Hopf equation for the complex velocity coupled with the complex transport equation for the conformal mapping. These equations are fully integrable by characteristics producing the infinite family of solutions, including the pairs of moving square root branch points. The solutions are compared with the simulations of the fully nonlinear Eulerian dynamics giving excellent agreement even when the small parameter approaches about one.
description: 24 pages, 5 figures
Annulus Amplitudes and ZZ Branes in Minimal String Theory
Creators: name: Kutasov, David
name: Okuyama, Kazumi
name: Park, Jongwon
name: Seiberg, Nathan
name: Shih, David
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the annulus amplitudes of (p,q) minimal string theory. Focusing on the ZZ-FZZT annulus amplitude as a target-space probe of the ZZ brane, we use it to confirm that the ZZ branes are localized in the strong-coupling region. Along the way we learn that the ZZ-FZZT open strings are fermions, even though our theory is bosonic! We also provide a geometrical interpretation of the annulus amplitudes in terms of the Riemann surface M_{p,q} that emerges from the FZZT branes. The ZZ-FZZT annulus amplitude measures the deformation of M_{p,q} due to the presence of background ZZ branes; each kind of ZZ-brane deforms only one A-period of the surface. Finally, we use the annulus amplitudes to argue that the ZZ branes can be regarded as "wrong-branch" tachyons which violate the bound α
description: 33 pages, new results in appendix, minor changes
Biological nitrogen fixation by leguminous crops
Creators: name: Iantcheva, Anelia
name: Naydenova, Galina
Publisher: name: Zenodo
Year: 2022
Subjects: Legumes
Nitrogen

description: In nature, biological nitrogen fixation (BFA) provides most of the reactive nitrogen, which is essential for proteins and plant growth. In view of the fact that legumes fix nitrogen in the soil, understanding the BFA process is the basis for decision-making in legume cultivation.
MITIGATING THE EFFECTS OF MULTICOLLINEARITY USING EXACT AND STOCHASTIC RESTRICTIONS: THE CASE OF AN AGGREGATE AGRICULTURAL PRODUCTION FUNCTION FOR THAILAND
Creators: name: Mittelhammer, Ron C.
name: Young, Douglas L.
name: Tasanasanta, Damrongsak
name: Donnelly, JohnT.
name: Mittelhammer, Ron C.
name: Young, Douglas L.
name: Tasanasanta, Damrongsak
name: Donnelly, JohnT.
Publisher: name: Unknown
Year: 1979
Subjects: International Relations/Trade

description: Mixed estimation and OLS were each used to estimate an aggregate agricultural production function for Thailand for which data were highly multicollinear. The final mixed model obtained using minimax regret in the pretest appeared to significantly outperform OLS in terms of precision and overall reasonableness, mitigating a serious multicollinearity problem.
Success in university-required mathematics courses: An investigation of students with learning disabilities
Creators: name: Evans, Brooke Ellen
Publisher: name: American University
Year: 2023

description: The number of students with learning disabilities attending institutions of higher education has dramatically increased in the last ten years and will continue to do so. Since federal laws require appropriate accommodations for students with learning disabilities, it is important for universities to evaluate the effectiveness of their services. This study was designed to evaluate the effectiveness of a class reserved for students with learning disabilities and to identify predictors of student success. Success of students enrolled in a section of finite mathematics reserved for students with learning disabilities is compared to the success of students with learning disabilities who fulfilled their mathematics requirement in another section. It was concluded that students with learning disabilities perform better in a class reserved for students with learning disabilities than students enrolled in open sections. Student documentation, such as high school GPA, SAT scores, and intelligence test scores, were analyzed to identify predictors of student success overall and within each group. These predictors serve to help academic advisors place students with learning disabilities in the courses, based on their individual profile, which will allow them more chances for success in their university-required mathematics courses. The final component of the study included a survey of student satisfaction with accommodations. The survey showed that, overall, students with learning disabilities are satisfied with the accommodations they receive in their university-required mathematics courses. It is important to evaluate the effectiveness of accommodations and services for students with learning disabilities in university-required mathematics courses. It is also important to have a research-based method for placing students in mathematics courses with appropriate accommodations. Professors, academic counselors, and universities need to be assured that they are providing appropriate accommodations to students with learning disabilities as required by law.
Domestic workers and democratization: Challenging the limits of transformation in the new South Africa
Creators: name: Fish, Jennifer Natalie
Publisher: name: American University
Year: 2023

description: This dissertation examines the relationship between South Africa's national transition to democracy and the gendered institution of paid domestic labor. While South Africa's outward post-apartheid transformation remains remarkable, the extent to which social inequality dominates the modern nation presents serious challenges to the actualization of its public victories. This dissertation asserts that the encapsulation of this discontinuity between democracy and severe inequality persists most strikingly in the institution of paid domestic labor. Because it remains the largest and most heavily exploited sector of employment for women in South Africa, domestic work affords a critical lens to analyze social change in the modern democracy. Embracing a feminist methodological approach to understanding the meaning of this institution in the New South Africa, I draw upon 85 in-depth interviews and participatory organizational observations that emerged from nine months of fieldwork in Cape Town, South Africa. Findings from this study reveal how the institution of domestic work maintains the dominant gendered, racialized, class-based social stratification system embedded in the apartheid era. Furthermore, this research centrally asserts that through their daily household labor, domestic workers assuage the tension of national transition by sustaining social relations constructed during apartheid. Therefore, a great deal is allowed to go unchanged in the new nation. Drawing upon community-based methodologies, the data also demonstrate critical examples of social change. Primarily, women's collective agency to transform the institution of domestic work resulted in tangible social policy reform during this study. Second, employers of domestic workers now include "newly elite" economically privileged sectors of formerly disadvantaged racial groups. Examining the intersectional relationships within marginalized communities provides an original analysis of both domestic work and South Africa's particular process of social change. By focusing on the experiences of South African women, the relationship between gender and democracy reveals the ongoing challenge of realizing congruence between social change at the public level and transformation in the everyday lives of those most severely marginalized. This dissertation asserts that changing the deeply engrained, highly normalized, severely unequal institution of domestic work is essential to actualizing the enormous public victories of South Africa's new democracy.
Thermal conductivity of evolving quark-gluon plasma in the presence of a time-varying magnetic field
Creators: name: Singh, Kamaljeet
name: Dey, Jayanta
name: Sahoo, Raghunath
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The effect of the temperature evolution of QGP on its thermal conductivity and elliptic flow is investigated here in the presence of a time-varying magnetic field. Thermal conductivity plays a vital role in the cooling rate of the medium or its temperature evolution. The magnetic field produced during the early stages of (non-central) heavy-ion collisions decays with time, where electrical conductivity plays a significant role. As the medium expands, the electrical and thermal properties change, reflecting the effect in various observables. In this study, we have calculated the thermal conductivity of the QGP medium, incorporating the effects of temperature and magnetic field evolution. We discovered that conductivity significantly depends on the cooling rate, and its value increases due to temperature evolution. Furthermore, the influence of these evolutions on the elliptic flow coefficient is measured, and elliptic flow decreases due to the evolution. We also extend our study for the case of Gubser flow, where, along with the longitudinal Bjorken expansion, the radially transverse expansion is also present.
description: Same as the published version in Phys. Rev D
Cross-over behaviour in a communication network
Creators: name: Singh, Brajendra K.
name: Gupte, Neelima M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We address the problem of message transfer in a communication network. The network consists of nodes and links, with the nodes lying on a two dimensional lattice. Each node has connections with its nearest neighbours, whereas some special nodes, which are designated as hubs, have connections to all the sites within a certain area of influence. The degree distribution for this network is bimodal in nature and has finite variance. The distribution of travel times between two sites situated at a fixed distance on this lattice shows fat fractal behaviour as a function of hub-density. If extra assortative connections are now introduced between the hubs so that each hub is connected to two or three other hubs, the distribution crosses over to power-law behaviour. Cross-over behaviour is also seen if end-to-end short cuts are introduced between hubs whose areas of influence overlap, but this is much milder in nature. In yet another information transmission process, namely, the spread of infection on the network with assortative connections, we again observed cross-over behaviour of another type, viz. from one power-law to another for the threshold values of disease transmission probability. Our results are relevant for the understanding of the role of network topology in information spread processes.
description: 12 figures
Domestic workers and democratization: Challenging the limits of transformation in the new South Africa
Creators: name: Fish, Jennifer Natalie
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 44
subject: Human society
classificationCode: 4405
subject: Gender studies
classificationCode: 4410
subject: Sociology
subject: FOS: Sociology

description: This dissertation examines the relationship between South Africa's national transition to democracy and the gendered institution of paid domestic labor. While South Africa's outward post-apartheid transformation remains remarkable, the extent to which social inequality dominates the modern nation presents serious challenges to the actualization of its public victories. This dissertation asserts that the encapsulation of this discontinuity between democracy and severe inequality persists most strikingly in the institution of paid domestic labor. Because it remains the largest and most heavily exploited sector of employment for women in South Africa, domestic work affords a critical lens to analyze social change in the modern democracy. Embracing a feminist methodological approach to understanding the meaning of this institution in the New South Africa, I draw upon 85 in-depth interviews and participatory organizational observations that emerged from nine months of fieldwork in Cape Town, South Africa. Findings from this study reveal how the institution of domestic work maintains the dominant gendered, racialized, class-based social stratification system embedded in the apartheid era. Furthermore, this research centrally asserts that through their daily household labor, domestic workers assuage the tension of national transition by sustaining social relations constructed during apartheid. Therefore, a great deal is allowed to go unchanged in the new nation. Drawing upon community-based methodologies, the data also demonstrate critical examples of social change. Primarily, women's collective agency to transform the institution of domestic work resulted in tangible social policy reform during this study. Second, employers of domestic workers now include "newly elite" economically privileged sectors of formerly disadvantaged racial groups. Examining the intersectional relationships within marginalized communities provides an original analysis of both domestic work and South Africa's particular process of social change. By focusing on the experiences of South African women, the relationship between gender and democracy reveals the ongoing challenge of realizing congruence between social change at the public level and transformation in the everyday lives of those most severely marginalized. This dissertation asserts that changing the deeply engrained, highly normalized, severely unequal institution of domestic work is essential to actualizing the enormous public victories of South Africa's new democracy.
Absorption cross section in gravity's rainbow from confluent Heun equation
Creators: name: Kwon, Kihong
name: Amado, Julián Barragán
name: Gwak, Bogeun
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the scattering of a massless scalar field by a charged non-rotating black hole in the presence of gravity's rainbow. Using the connection coefficients of the confluent Heun equation expressed in terms of the semi-classical confluent conformal blocks and the instanton part of the Nekrasov-Shatashvili (NS) free energy, we obtain an asymptotic expansion for the low-energy absorption cross section.
description: 19 pages
An algorithm to approximate the distribution of fixed -response covariates in logistic regression using smoothing splines
Creators: name: Kittichotipanit, Nomchit
Publisher: name: American University
Year: 2023

description: We investigate the use of smoothing splines in logistic regression to estimate the distribution of covariate values that yield a fixed response probability, eg. LC50 or LD50. We develop an algorithm for a monotonic spline fit, approximate the distribution of the resulting probability estimates, and using a Bayesian approach approximate the distribution of the fixed-response covariates. We illustrate our algorithm on data sets from studies of genetic spatial diversity.
An algorithm to approximate the distribution of fixed -response covariates in logistic regression using smoothing splines
Creators: name: Kittichotipanit, Nomchit
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 49
subject: Mathematical sciences
classificationCode: 4905
subject: Statistics
subject: FOS: Mathematics

description: We investigate the use of smoothing splines in logistic regression to estimate the distribution of covariate values that yield a fixed response probability, eg. LC50 or LD50. We develop an algorithm for a monotonic spline fit, approximate the distribution of the resulting probability estimates, and using a Bayesian approach approximate the distribution of the fixed-response covariates. We illustrate our algorithm on data sets from studies of genetic spatial diversity.