cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Affine Jordan cells, logarithmic correlators, and hamiltonian reduction
Creators: name: Rasmussen, Jorgen
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study a particular type of logarithmic extension of SL(2,R) Wess-Zumino-Witten models. It is based on the introduction of affine Jordan cells constructed as multiplets of quasi-primary fields organized in indecomposable representations of the Lie algebra sl(2). We solve the simultaneously imposed set of conformal and SL(2,R) Ward identities for two- and three-point chiral blocks. These correlators will in general involve logarithmic terms and may be represented compactly by considering spins with nilpotent parts. The chiral blocks are found to exhibit hierarchical structures revealed by computing derivatives with respect to the spins. We modify the Knizhnik-Zamolodchikov equations to cover affine Jordan cells and show that our chiral blocks satisfy these equations. It is also demonstrated that a simple and well-established prescription for hamiltonian reduction at the level of ordinary correlators extends straightforwardly to the logarithmic correlators as the latter then reduce to the known results for two- and three-point conformal blocks in logarithmic conformal field theory.
description: 31 pages, v2: reference corrected, v3: version to be published
Is the Structural Relaxation of Glasses Controlled by Equilibrium Shear Viscosity?
Creators: name: Lancelotti, Ricardo F.
name: Cassar, Daniel R.
name: Nalin, Marcelo
name: Peitl, Oscar
name: Zanotto, Edgar D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Knowledge of relaxation processes is fundamental in glass science and technology because relaxation is intrinsically related to vitrification, tempering as well as to annealing and sev-eral applications of glasses. However, there are conflicting reports -- summarized here for different glasses -- on whether the structural relaxation time of glass can be calculated using the Maxwell equation, which relates relaxation time with shear viscosity and shear modulus. Hence, this study aimed to verify whether these two relaxation times are comparable. The structural relaxation kinetics of a lead metasilicate glass were studied by measuring the re-fractive index variation over time at temperatures between 5 and 25 K below the fictive temperature, which was initially set 5 K below the glass transition temperature. Equilibrium shear viscosity was measured above and below the glass transition range, expanding the current knowledge by one order of magnitude. The Kohlrausch equation described very well the experimental structural relaxation kinetics throughout the investigated temperature range and the Kohlrausch exponent increased with temperature, in agreement with studies on other glasses. The experimental average structural relaxation times were much longer than the values computed from isostructural viscosity, as expected. Still, they were less than one order of magnitude higher than the average relaxation time computed through the Maxwell equation, which relies on equilibrium shear viscosity. Thus, these results demon-strate that the structural relaxation process is not controlled by isostructural viscosity, and that equilibrium shear viscosity only provides a lower boundary for structural relaxation kinetics.
description: 19 pages, 8 figures. Changed title. Minor updates to the text
One-Two Quench: A Double Minor Merger Scenario
Creators: name: Sanchez, N. Nicole
name: Tremmel, Michael
name: Werk, Jessica K.
name: Pontzen, Andrew
name: Christensen, Charlotte
name: Quinn, Thomas
name: Loebman, Sarah
name: Cruz, Akaxia
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Using the N-body+Smoothed particle hydrodynamics code, ChaNGa, we identify two merger-driven processes\textemdash disk disruption and supermassive black hole (SMBH) feedback\textemdash which work together to quench L$^*$ galaxies for over 7 Gyr. Specifically, we examine the cessation of star formation in a simulated Milky Way (MW) analog, driven by an interaction with two minor satellites. Both interactions occur within $\sim$100 Myr of each other, and the satellites both have masses 5 to 20 times smaller than that of their MW-like host galaxy. Using the genetic modification process of \cite{Roth2016}, we generate a set of four zoom-in, MW-mass galaxies all of which exhibit unique star formation histories due to small changes to their assembly histories. In two of these four cases, the galaxy is quenched by $z = 1$. Because these are controlled modifications, we are able to isolate the effects of two closely-spaced minor merger events, the relative timing of which determines whether the MW-mass main galaxy quenches. This one-two punch works to: 1. fuel the primary halo's supermassive black hole (SMBH) at its peak accretion rate; and 2. disrupt the cold, gaseous disk of the host galaxy. The end result is that feedback from the SMBH thoroughly and abruptly ends the galaxy's star formation by $z\approx1$. We search for and find a similar quenching event in {\sc Romulus25}, a hydrodynamical $(25\,\mathrm{Mpc})^3$ volume simulation, demonstrating that the mechanism is common enough to occur even in a small sample of MW-mass quenched galaxies at $z=0$.
description: 12 pages, 9 figures, accepted to ApJ
Phase transitions in the Interacting Boson Fermion Model: the gamma-unstable case
Creators: name: Alonso, C. E.
name: Arias, J. M.
name: Fortunato, L.
name: Vitturi, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The phase transition around the critical point in the evolution from spherical to deformed gamma-unstable shapes is investigated in odd nuclei within the Interacting Boson Fermion Model. We consider the particular case of an odd j=3/2 particle coupled to an even-even boson core that undergoes a transition from spherical U(5) to gamma-unstable O(6) situation. The particular choice of the j=3/2 orbital preserves in the odd case the condition of gamma-instability of the system. As a consequence, energy spectrum and electromagnetic transitions, in correspondence of the critical point, display behaviours qualitatively similar to those of the even core. The results are also in qualitative agreement with the recently proposed E(5/4) model, although few differences are present, due to the different nature of the two schemes.
description: In press in PRC as rapid communication. 7 pages, 4 figures
Katie Sardinha's Kwak'wala Fieldwork Collection
Creators: name: Bracic, Violet
name: Child, Mildred
name: Dawson Cranmer, Ruby
name: Sardinha, Katie
name: Child, Janet
name: Child, Sara
name: Hunt, Krista
name: Littell, Patrick
name: Sardinha, Julie
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2015

description: The materials document Katie Sardinha's fieldwork on Kwak'wala during the period of 2014-2015, working with various Kwakwaka'wakw elders to study a range of semantic and syntactic topics. The collection includes original audio recordings and transcriptions of the recordings. Each transcriptions also contain a list of vocabulary encountered in the elicitation session. Main topics covered include the linguistic expression of causation, unaccusativity, psych verbs, intensifiers, and short narratives.
Kwak'wala elicitation on various topics
Creators: name: Bracic, Violet
name: Child, Mildred
name: Sardinha, Katie
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2015
Subjects: subject: kwk
subject: Kwak'wala language

description: Elicitation on various topics, including: sleeping and dreaming; causal situations with various verbs; (in)direct causation and (un)intentional causation; events as causes; 'to support, lean on each other (e.g. while walking)'; causal events spanning more than one day; causatives with varying levels of 'control' of the causee. Also contains two short texts, one where Violet talks about a dream she had, and a semi-elicited narrative about a man named Eddie who keeps changing his mind about what colour to paint his house.
THE ECONOMICS OF RICE POLICY IN FOUR DEVELOPED NATIONS
Creators: name: Houck, James P.
name: Houck, James P.
Publisher: name: Unknown
Year: 1972
Subjects: Agricultural and Food Policy
Crop Production/Industries

description: The purpose of this paper is to present and discuss the economic core of the protective rice policies in four major developed nations; the United States, Australia, Japan, and the European Economic Community (EEC). The fundamental economic aspects of rice policies are emphasized and not their operational details and statistics. The main purpose is to show how these policies protect domestic rice producers and to suggest how they may impinge upon world trade. The analytical tools are simple economics of static partial equilibrium together with some discussion of the economic and political setting within which the policies function.
Disentangling a Deep Learned Volume Formula
Creators: name: Craven, Jessica
name: Jejjala, Vishnu
name: Kar, Arjun
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Machine Learning (cs.LG)
subject: Geometric Topology (math.GT)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We present a simple phenomenological formula which approximates the hyperbolic volume of a knot using only a single evaluation of its Jones polynomial at a root of unity. The average error is just $2.86$% on the first $1.7$ million knots, which represents a large improvement over previous formulas of this kind. To find the approximation formula, we use layer-wise relevance propagation to reverse engineer a black box neural network which achieves a similar average error for the same approximation task when trained on $10$% of the total dataset. The particular roots of unity which appear in our analysis cannot be written as $e^{2πi / (k+2)}$ with integer $k$; therefore, the relevant Jones polynomial evaluations are not given by unknot-normalized expectation values of Wilson loop operators in conventional $SU(2)$ Chern$\unicode{x2013}$Simons theory with level $k$. Instead, they correspond to an analytic continuation of such expectation values to fractional level. We briefly review the continuation procedure and comment on the presence of certain Lefschetz thimbles, to which our approximation formula is sensitive, in the analytically continued Chern$\unicode{x2013}$Simons integration cycle.
description: v1: 26 + 19 pages, 15 figures; v2: 27 + 18 pages, figures updated, references added, journal version
COMMON PROPERTY AND COLLECTIVE ACTION: COOPERATIVE WATERSHED MANAGEMENT IN HAITI
Creators: name: White, Thomas A.
name: Runge, C. Ford
name: White, Thomas A.
name: Runge, C. Ford
Publisher: name: Unknown
Year: 1992
Subjects: Resource /Energy Economics and Policy

description: The paper is divided into four sections. First, watershed management in Haiti is presented as a problem of voluntary collective action in which small watersheds are the common responsibility of a group of users. Second, this situation is given formal expression as a "public goods" problem, in which obligations to contribute time and labor to the maintenance and management of watersheds are treated as conditional or contingent commitments to cooperate (rather than defect). Third, an empirical analysis is presented in which key economic and cultural factors are tested to determine those that best explain the individual propensity to cooperate and the conditions necessary for collective action to emerge. Fourth, we interpret these results in light of the model, and suggest some generalizations and extensions of theoretical and empirical research on common property and collective action.
EVOLUTION OF THE ECONOMIC RESULTS AND THE STRUCTURE OF FARMS: AN ANALYSIS THROUGH THE BOOK-KEEPING DATA IN CENTRAL AND NORTHERN ITALY
Creators: name: Canavari, Maurizio
name: Ghelfi, Rino
name: Merlo, Maurizio
name: Rivaroli, Sergio
name: Sarti, Danio
name: Toffanin, Giovanna
name: Vanelli, Pietro
name: Canavari, Maurizio
name: Ghelfi, Rino
name: Merlo, Maurizio
name: Rivaroli, Sergio
name: Sarti, Danio
name: Toffanin, Giovanna
name: Vanelli, Pietro
Publisher: name: Unknown
Year: 2004
Subjects: Farm Management

description: The latest orientations of the CAP have had remarkable and wide-spread effects on the whole agri-food sector. It has deeply influenced the entrepreneurs' choices, with reference both to the production techniques and to the business organization. The changes have had inevitable reflexes on the economic results of the firms, thus determining adaptations regarding both the structure and the amount of inputs. In this paper, an analysis of the book-keeping results of agricultural enterprises of Northern and Central Italy is carried out. We try to underline and analyze the evolution of the economic results and the main structural and organizational elements in the firms. The accountancy data of a group of firms located in the Veneto, Emilia-Romagna and Tuscany regions, referred to the period 1994-2000, are taken into consideration. These firms seems to adequately represent the main type of farming: field crops, fruit-growing, wine-growing, husbandry. The study is aimed at underlining the influence of the EU payments on the profitability and the changes in the value distribution between the various input suppliers.
Loyalty and Memory: A Civil War Scrapbook in Baltimore
Creators: name: Huebner, Emily
Publisher: name: Maryland Shared Open Access Repository
Year: 2013

description: Julia Rogers Research Prize: Junior/Senior Winner
description: This paper is evidence of the power that a primary source can have over a researcher when that source inspires more questions than answers. When I was first introduced to the series of Civil War Scrapbooks in Goucher’s Special Collections I had not planned to write a paper about American history. My majors are in Spanish and History, and I had expected to write about Latin America, or at least to use a primary source in Spanish for my research paper. The mystery of the scrapbooks, however, was too tempting to resist.
The resources in Goucher’s library were central to my research. I spent many hours in Goucher’s Special Collections looking at the six scrapbooks, and whenever I needed to give my research direction I would study the shelves of the library, looking for titles that could give new insight to my research. As a result, the majority of my secondary sources are books that I found in the library.
The process of writing this paper showed me how much research is driven by curiosity. When I first saw the scrapbooks I immediately wanted to know more about who made them, what the creator’s life had been like, and whether there were more scrapbooks like these. I realized that the newspaper clippings of the scrapbook were not going to give me the answers that I wanted; I would need to learn more about Baltimore during the Civil War and follow the clues the primary source gave me to find out more about these scrapbooks. The only answers I would get were the ones that I found for myself. This project gave me the opportunity to use my research skills to solve an intriguing mystery.
Courting Clam: The Art of Reducing Stress
Creators: name: Finley, Michaela
Publisher: name: Maryland Shared Open Access Repository
Year: 2015

description: Julia Rogers Research Prize: First year/ sophomore winner, 2015
description: For my research project, I created an exhibition of art that represents calm because one of my goals is to find serenity. I wanted to explore how artists have “courted calm” through art. My strategy for this research project was to use ACE and the Goucher library to complete the project in a thorough and calm manner.
Throughout my research process, I met with my Academic Coach in ACE to create deadlines so that I could stay organized and reduce stress. On the advice of ACE, I met with my professor to discuss my research process. Regular meetings with advisors helped to break down the project into manageable chunks of work.
Most of my work was accomplished in the library. The research librarian helped me navigate the databases, search for books both physically and electronically, and set up a Refworks account to keep my sources organized. When I was not talking with a librarian, prowling the stacks, or using Refworks, I was simply using the physical space of the quiet floors. The research librarian, databases, and quiet space were all crucial resources for my project.
Through this project, I discovered that research is like a funnel. Work needs to begin in a broad and general manner. With time, work, and frustration, the thesis and objectives become more defined and clear. I found that thorough research takes a lot of time!
This project also taught me to be flexible in my work. The focus of my research needed to change according to the discovered evidence.
I am thankful that I was given this assignment during my first semester at Goucher because through the project, I better understand the resources available through the library, ACE, and my professors. I discovered that I am capable of independently creating an exciting and difficult project.
Externalities from Concentrated Animal Feeding Operations
Creators: name: Bast, Ellen
Publisher: name: Maryland Shared Open Access Repository
Year: 2014

description: Julia Rogers Research Prize: Junior/Senior Winner, 2014
description: Classical economics is based upon three assumptions about the firms and individuals that partake in the market: they are goal-oriented, meaning that they are interested in fulfilling their own personal or private goals; they are rational, meaning that their behavior is the result of privately considered costs and benefits; and they must deal with scarce resources, meaning that there is not enough time, resources, or money to fulfill all of their wants and needs. That is, when individuals and firms operate and make decisions, they do so in a way that maximizes their personal utility given the constraints and limitations associated with finite resources.
However, not all decision making can be viewed in isolation for each individual or firm. In many cases, decisions affect others. Instances such as these fall under the category of market failures, which are instances where the perfectly competitive market fails to produce a Pareto optimal amount or equilibrium. These can occur in exchange or production when a non-optimal allocation of scarce resources takes place. For example, the decision to donate blood has the benefit of potentially saving the life of three other people, in addition to securing access to possible future blood transfusions to the donor and his/her family. On the other hand, the decision to build an airport near a busy subdivision may result in noise pollution that damages the residents nearby. These benefits and costs that affect individuals other than the decision maker—these external effects—have been termed externalities and can be either positive or negative. Positive externalities produce a benefit to a party other than the decision maker, whereas negative externalities harm an otherwise uninvolved party (Browning and Zupan 2009). There are many applications of the theory of externalities in the economics literature of today; one such example examines the consequences of industrial agriculture, namely livestock production in concentrated animal feeding operations (CAFOs).
description: Lydia Harris
An Incomplete Truth: The Role of Crisis and Politics in Early Twenieth Century Mathematics
Creators: name: Bornstein, Aaron
Publisher: name: Maryland Shared Open Access Repository
Year: 2014

description: Julia Rogers Research Prize: Margaret Guccione Prize Winner, 2014
description: As a History and Computer Science double major, Goucher’s library services have served as a valuable asset for research and topic exploration. The purpose of my submission for the Julia Rogers research prize was to combine my diverse interests through the exploration of the development of mathematical foundations at the turn of the 20th century and its effect on the theory of computation. This process was accomplished by dividing the research into five distinct stages: preliminary reading, primary source analysis, topic outlining, drafting, and peer/faculty review.
From the collected works of L.E.J Brouwer and Constance Reid’s biography of David Hilbert to William Dunham’s Journey Through Genius and more, the Athenaeum’s large collection of primary and secondary literature greatly supplemented the preliminary reading phase of my research. In addition to taking advantage of the Athenaeum’s resources, I traveled to the Library of Congress where I located a valuable compilation of primary sources annotated by the Dutch mathematician Dirk Van Dalen. I also reached out to both Professor Robert Lewand and Professor Justin Brody in the Math and Computer Science department to guide my research. After gaining a solid appreciation of the theory, sources and history necessary for embarking on this project, I began the process of outlining my paper. The greatest challenge was providing an analysis of technical topics to readers with no formal mathematical background. I found that the use of parables and story-telling to explain complex concepts helped to overcome this challenge.
During the drafting of my paper, the invaluable expertise and advice of both Professor Baker and Professor Lewand helped me maintain focus. I am greatly indebted to them and my peers for pushing me to turn “Incomplete Truth: The Role of Crisis and Politics in Early Twentieth Century Mathematics” in to one of the strongest works of my undergraduate career.
description: Jean H. Baker
A METHODOLOGY FOR VALUING MULTIPLE-EXERCISE OPTION CONTRACTS FOR WATER
Creators: name: Villinski, Michele T.
name: Villinski, Michele T.
Publisher: name: Unknown
Year: 2003
Subjects: Resource /Energy Economics and Policy

description: In this paper I use financial derivative pricing theory as a foundation for a computational approach to valuing multiple-exercise option contracts in a natural resources setting. Evidence from the western United States shows that option contracts for water can be even more exotic than many exotic options considered in finance. For instance, one contract negotiated between a municipal water authority and a large agricultural operation allows the municipality to exercise a call option on water up to seven times in a fifteen-year period. This is a highly non-standard option; there is no simple pricing formula to calculate its value. Building on the Black-Scholes option-pricing framework I use dynamic programming techniques to construct a method for valuing such multiple-use option contracts for water.
WOOK-TV Television Production Facility Property History and Evaluation
Creators: name: Sparenberg, Jennifer
Publisher: name: Maryland Shared Open Access Repository
Year: 2014

description: Julia Rogers Research Prize: Graduate Winner, 2014
description: I chose the WOOK-TV television studio building as the subject of my Historic Property Documentation paper. WOOK-TV was the nation’s first African American television station. My basic research strategy began with a general internet search (Google) and a targeted website search of the Washington, D.C. State Historic Preservation Office, the National Register of Historic Places, and World Cat Classic through the Goucher Library, for information on WOOK-TV. When beginning any paper, I cast a wide net to help identify both dead ends and further avenues of inquiry. In this case, I did not find any books or articles specifically written about WOOK-TV, or information in either the state or federal historic registers, but it I did find local repositories of information about WOOK-TV in the special collections at the Washington, D.C. Public Library and archived at the Smithsonian Anacostia Community Museum in Washington, D.C. The library files and the museum archives helped me to narrow the focus of my research to two main sources: local newspapers and a trade journal for radio and television broadcasting. Through those two sources, I was able to reconstruct a history of WOOK-TV, including specific information about the studio and the station’s staff and programming. While World Cat Classic did not yield specific information on WOOK-TV, it was an excellent source for general information on the history of television. Using the Goucher Library’s Inter-Library Loan system, I was able to gather references to provide the context for evaluating WOOK-TV’s significance and eligibility for inclusion in the National Register of Historic Places. Through my research, I learned that when a subject lacks a published body of work, the best sources for specific information are often local libraries and archives, while the online resources collected on the Goucher Library website are good for locating broad historical references.
description: Betsy Bradley
DEVELOPMENT OF A RISK-BASED CLEAN-UP LEVEL FOR CADMIUM IN RESIDENTIAL SOIL; Proceedings of the 4th Minnesota Padova Conference on Food, Agriculture, and the Environment, September 4-10, 1994, Wayzata, MN
Creators: name: Krieger, Gary R.
name: Krieger, Gary R.
Publisher: name: Unknown
Year: 1995
Subjects: Environmental Economics and Policy

description: The purpose of this document is to derive a risk-based clean-up level (RBCL) for cadmium in residential soil utilizing standard published EPA toxicity factors from IRIS (EPA, 1994) and methodologies from the Risk Assessment Guidance for Superfund.
Comment on `Phase transition in a network model of social balance with Glauber dynamics'
Creators: name: Malarz, Krzysztof
name: Kułakowski, Krzysztof
Publisher: name: arXiv
Year: 2020
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: In a recent work [R. Shojaei et al, Physical Review E 100, 022303 (2019)] the Authors calculate numerically the critical temperature $T_c$ of the balanced-imbalanced phase transition in a fully connected graph. According to their findings, $T_c$ decreases with the number of nodes $N$. Here we calculate the same critical temperature using the heat-bath algorithm. We show that $T_c$ increases with $N$ as $N^γ$, with $γ$ close to 0.5 or 1.0. This value depends on the initial fraction of positive bonds.
description: 4 pages, 3 figures
Fluorine Abundances in the Orion Nebula Cluster
Creators: name: Cunha, Katia
name: Smith, Verne V.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: This study uses cool dwarfs as sources with which to probe fluorine abundances via HF. This molecule is detected for the first time in young K-M dwarf members of an OB association. Fluorine, oxygen, and carbon abundances were derived from the HF(1--0) R9 line along with samples of OH and CO vibration-rotation lines present in high-resolution infrared spectra observed with the Phoenix spectrograph on the Gemini South Telescope. The fluorine and oxygen results obtained for these targets, still in the pre-main-sequence stage of evolution, agree well with the general trend defined for the Milky Way disk; the latter being deduced from observations of more evolved giant stars. In addition, the carbon and oxygen abundances obtained for the studied stars overlap results from previous studies of the more massive OB stars and FG dwarf members of the Orion Nebula Cluster. We conclude from this agreement that the fluorine abundances derived for the Orion K-M dwarfs (when there is no conspicuous evidence of disks) can be considered a good representation of the current fluorine abundance value for the Milky Way disk.
description: 18 pages, including 2 tables and 3 figures. Accepted for publication in The Astrophysical Journal
มุมมองที่มีต่อคนชราในเรื่อง "ท์ซุเระสุเระงุซะ":ปัญญาอันเกิดจากความชรา
Creators: name: กณภัทร รื่นภิรมย์
Publisher: name: สมาคมญี่ปุ่นศึกษาแห่งประเทศไทย
Year: 2018
Subjects: ท์ซุเระสุเระงุสะ
เค็งโก
คนชรา
ปัญญา
เต๋า

description: วารสารเครือข่ายญี่ปุ่นศึกษา, 8, 2, 1-22
Their Eyes Were Watching God and the Revolution of Black Women
Creators: name: Begley, Ashley
Publisher: name: Maryland Shared Open Access Repository
Year: 2014

description: Julia Rogers Research Prize: first year/sophomore winner, 2014
description: It did not pay to be a woman during the Harlem Renaissance. Women’s work was seen as inferior and the women themselves were often under-valued and deemed worthless, meant only to be controlled by the patriarchal society. To be a black woman meant that this societal suffocation and subjugation were doubled, for not only did a black woman have to overcome the inequalities faced by all women, she also had to fight the stereotypes that have been thrust upon her since slavery. Many authors of the Harlem Renaissance, especially Zora Neale Hurston in her novel Their Eyes Were Watching God, wrote about black women in order to defy stereotypes that were commonly held as truth. Through their writings, these authors explored how the institutions of race and gender interact with each other to create a unique experience for black women of the Harlem Renaissance.
description: Angelo Robinson
Resilience of quantum random access memory to generic noise
Creators: name: Hann, Connor T.
name: Lee, Gideon
name: Girvin, S. M.
name: Jiang, Liang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum random access memory (QRAM)--memory which stores classical data but allows queries to be performed in superposition--is required for the implementation of numerous quantum algorithms. While naive implementations of QRAM are highly susceptible to decoherence and hence not scalable, it has been argued that the bucket brigade QRAM architecture [Giovannetti et al., Phys. Rev. Lett. 100 160501 (2008)] is highly resilient to noise, with the infidelity of a query scaling only logarithmically with the memory size. In prior analyses, however, this favorable scaling followed directly from the use of contrived noise models, thus leaving open the question of whether experimental implementations would actually enjoy the purported scaling advantage. In this work, we study the effects of decoherence on QRAM in full generality. Our main result is a proof that this favorable infidelity scaling holds for arbitrary error channels (including, e.g., depolarizing noise and coherent errors). Our proof identifies the origin of this noise resilience as the limited entanglement among the memory's components, and it also reveals that significant architectural simplifications can be made while preserving the noise resilience. We verify these results numerically using a novel classical algorithm for the efficient simulation of noisy QRAM circuits. Our findings indicate that QRAM can be implemented with existing hardware in realistically noisy devices, and that high-fidelity queries are possible without quantum error correction. Furthermore, we also prove that the benefits of the bucket-brigade architecture persist when quantum error correction is used, in which case the scheme offers improved hardware efficiency and resilience to logical errors.
description: 18+13 pages, 9+2 figures, updated to match published version
Energy Spectrum of a 2D Dirac Oscillator in the Presence of the Aharonov-Bohm Effect
Creators: name: Ferkous, N.
name: Bounames, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We determine the energy spectrum and the corresponding eigenfunctions of a 2D Dirac oscillator in the presence of Aharonov-Bohm (AB) effect . It is shown that the energy spectrum depends on the spin of particle and the AB magnetic flux parameter. Finally, when the irregular solution occurs it is shown that the energy takes particular values. The nonrelativistic limit is also considered.
description: Latex, 12 pages
Poultry Growers Will Have to Wait a Little Longer for Crop Insurance Coverage
Creators: name: Goeringer, Paul
name: Leathers, Howard
Publisher: name: Digital Repository at the University of Maryland
Year: 2016
Subjects: poultry
integrator
crop insurance
farm bill
business interruption insurance
avian influenza

description: This article reviews recent reports looking at the ability to implement crop insurance products for poultry growers.  For both business interruption insurance and disease insurance, USDA concluded that the current legislation would not allow for the Risk Management Agency to develop products that work for these growers.
O'ZBEKISTON RESPUBLIKASIDA SOLIQ MA'MURCHILIGINI TAKOMILLASHTIRISHNING ZARURATI VA ASOSIY YO'NALISHLARI
Creators: name: XUSANOV SHOXRUX NIGMATULLAEVICH
Publisher: name: Zenodo
Year: 2025

description: Ushbu maqolada O‘zbekiston soliq ma’murchiligini takomillashtirishning zarurati va asosiy yo‘nalishlari o’rganildi. Unda byudjet-soliq siyosatining zamonaviy dolzarb muammolari xorijiy va mahalliy olimlarimizning ilmiy izlanishlari keng o‘rganilgan. Respublikamizda Soliq ma’murchiligida kichik biznes va xususiy tadbirkorlik sub’ektlaridan olinadigan soliqlarning byudjet daromadlarini shakllantirishdagi salmog‘i, hududlar bo‘yicha mahalliy byudjet daromadlari tushumlari va soliq to‘lovchilar va ular to‘lagan soliqlar hamda boshqa majburiy to‘lovlar ko’rsatkichlari tahlil qilingan. O‘zbekiston Respublikasi Soliq ma’murchiligini takomillashtirish zaruriyati va takomillashtirishning asosiy yo‘nalishlari sifatida ilmiy-amaliy taklif va tavsiyalar ishlab chiqilgan.
The Schellingian Roots of Peirce’s idealism
Creators: name: Ibri, Ivo Assad
Publisher: name: Università degli Studi di Milano
Year: 2016
Subjects: Schelling; Peirce; idealism

description: The Schellingian Roots of Peirce’s idealism
description: Nóema, No 6-2 (2015): Ricerche
EMERGING ISSUES IN AGRICULTURAL TRADE AND THE ENVIRONMENT
Creators: name: Runge, C. Ford
name: Runge, C. Ford
Publisher: name: Unknown
Year: 1998
Subjects: Environmental Economics and Policy
International Relations/Trade

description: This paper outlines emerging issues in agricultural trade and the environment. Its intent is to provoke discussion, rather than to capture all of the issues and details that merit analysis. It focuses primarily on "micro" issues rather than global issues such as green house gas emissions or biodiversity, although these are in many respects simply the aggregation of questions that must be resolved by changes in practices and incentives at the farm level. It begins with a description of the stylized facts of trade-environment interactions, arguing that the widely cited "Kuznets function" underscores our ignorance concerning the mechanisms linking growth, trade, and pollution. Especially in agriculture, there is evidence that market and government failures have not yet led to substantial interventions to reduce environmental externalities. The second part of the paper discusses these mechanisms, and raises a set of research questions designed to guide OECD and other investigators toward a more detailed understanding of the linkages from trade to environment in agriculture. The third part of the paper explores the challenges posed for trade policy-making, touching on two of the most important future areas in agriculture: sanitary and phytosanitary (SPS) measures, and genetically modified organisms (GMOs), and offers some policy principles to advance agricultural sustainability. The final part of the paper raises some of the challenges likely to face the WTO as it grapples with these and other trade-environment issues in the next century.
การเปลี่ยนแปลงรูปแบบการนำเสนอภาพลักษณ์สตรีในละครโทรทัศน์ญี่ปุ่นร่วมสมัยภายหลังการเกิดขึ้นของกฎหมายความเท่าเทียมทางเพศ
Creators: name: กานท์ธิดา บุญปาน
Publisher: name: สมาคมญี่ปุ่นศึกษาแห่งประเทศไทย
Year: 2018
Subjects: ละครโทรทัศน์ญี่ปุ่น
กฎหมายความเท่าเทียมระหว่างหญิงและชาย
ภาพลักษณ์สตรี
สังคมญี่ปุ่น
สื่อกับสังคม

description: วารสารเครือข่ายญี่ปุ่นศึกษา, 8, 2, 23-37
NATIONAL SECURITY AND BIOTERRORISM: A U.S. PERSPECTIVE
Creators: name: Runge, C. Ford
name: Runge, C. Ford
Publisher: name: Unknown
Year: 2002
Subjects: Food Consumption/Nutrition/Food Safety

description: My purpose is to consider how the events of September 11, 2001 have changed how we think about the world food system and the possibilities for agro-bioterrorism. I will divide them into three categories: direct threats to the world food system from agro-bioterrorism; market and development assistance disruptions arising from terrorist and anti-terrorist activity; and broader and longer term shifts in the political economy of international agriculture due to the emergence of a recognized global terrorist threat. I conclude that agro-bioterrorism is a real threat, but more to markets than to human health. Moreover, responses to this threat are likely to reinforce ongoing improvements in food inspection, identity preservation, and safety measures.
A unique, distant cluster pre-merger
Creators: name: Migkas, Konstantinos
name: Schrabback, Tim
name: Zohren, Hannah
Publisher: name: Zenodo
Year: 2022
Subjects: Galaxy clusters, X-rays, mergers

description: Galaxy cluster mergers are excellent laboratories for studying numerous physical processes. Different phases of the merging process reveal different aspects of these fascinating systems. For instance, the pre-merger state can help us to understand the conditions under which the cluster gas interaction starts, the effects of the latter on X-ray cluster properties, and the biases that such systems inflict on cosmological analyses. We use XMM-Newton observations to study the SPT-CLJ2228−5828 cluster system, which constitutes a pre-merger system. It is a high-redshift (z=0.78) cluster pair that was believed to be a dissociative cluster post-merger when studied only by SPT via its SZ signal. It exhibits two major, widely-separated centers in its mass distribution, identified by HST weak lensing observations. With the use of X-rays however, it is revealed that SPT-CLJ2228−5828 consists of two closeby clusters of similar mass in a pre-merging state. This strongly demonstrates the need for high-resolution X-ray observations when we study such high-redshift complex systems. Performing a spectroscopic analysis, we fully characterize the two cluster members of the merger along with the gas bridge that connects them. We check the consistency of the numerous measured X-ray cluster properties with several scaling relations at the high-z regime. This helps us understand the kind of biases that such systems might introduce to scaling relation studies when unidentified. SPT-CLJ2228−5828 is (to our knowledge) the first such high-z pre-merger consisting of equally-sized clusters to be studied. Due to its observational power, Athena will reveal many more such systems at even larger distances. This will help us better understand the cluster formation processes in the early Universe, the merging dynamics between clusters of different masses, and the evolution of these merging systems with redshift.
Model Order Reduction for Gas and Energy Networks
Creators: name: Himpe, Christian
name: Grundel, Sara
name: Benner, Peter
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optimization and Control (math.OC)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Numerical Analysis (math.NA)
subject: Systems and Control (eess.SY)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: 93-04, 76N15, 93B20

description: To counter the volatile nature of renewable energy sources, gas networks take a vital role. But, to ensure fulfillment of contracts under these circumstances, a vast number of possible scenarios, incorporating uncertain supply and demand, has to be simulated ahead of time. This many-query gas network simulation task can be accelerated by model reduction, yet, large-scale, nonlinear, parametric, hyperbolic partial differential(-algebraic) equation systems, modeling natural gas transport, are a challenging application for model order reduction algorithms. For this industrial application, we bring together the scientific computing topics of: mathematical modeling of gas transport networks, numerical simulation of hyperbolic partial differential equation, and parametric model reduction for nonlinear systems. This research resulted in the "morgen" (Model Order Reduction for Gas and Energy Networks) software platform, which enables modular testing of various combinations of models, solvers, and model reduction methods. In this work we present the theoretical background on systemic modeling and structured, data-driven, system-theoretic model reduction for gas networks, as well as the implementation of "morgen" and associated numerical experiments testing model reduction adapted to gas network models.
Moritzen, Niels-Peter; Willeke, Bernward H.: China - Herausforderung an die Kirchen
Creators: name: Buege, Gerda
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 24 Nr. 2 (1975): Ökumenische Rundschau, Band 24, Heft 2
The abc Conjecture Implies That Only Finitely Many s-Cullen Numbers Are Repunits
Creators: name: Grantham, Jon
name: Graves, Hester
Publisher: name: arXiv
Year: 2020
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11B83

description: Assuming the abc conjecture with $ε=1/6$, we use elementary methods to show that only finitely many $s$-Cullen numbers are repunits, aside from two known infinite families. More precisely, only finitely many positive integers $s$, $n$, $b$, and $q$ with $s,b \geq 2$ and $n,q \geq 3$ satisfy \[C_{s,n} = ns^n + 1 = \frac{b^q -1}{b-1}.\]
description: v4: fixed typo, added journal reference v3: Significantly improved the main result v2: Improved formatting, better Masser reference
Removal of oxygen demand and acute toxicity during batch biological treatment of a petroleum refinery effluent
Creators: name: Sarathy, Brihas Pathi
Publisher: name: University of British Columbia
Year: 2009

description: This study was undertaken in order to investigate the removal of oxygen demand and acute toxicity from a petroleum refinery effluent. The results of this study provide a better understanding of the biodegradation process occurring at the Chevron refinery wastewater treatment plant (WWTP) in Burnaby, BC. The WWTP consists of a deep shaft bioreactor followed by a dissolved air flotation clarifier and effluent polishing biofilters. The treatment plant is able to degrade approximately 75% of the COD and 95% of the BOD present in the wastewater. During the study period, the toxicity of the wastewater before and after treatment was 1.9±0.12 (%v/v) and 25.4±5.9 (%v/v), respectively (as measured by the 5 minute Microtox™ assay in EC₅₀ units). The experimental program utilized two batch bioreactors operated at 35°C to characterize the removal of organic compounds (as measured by BOD and COD), and to deterrnine the capacity of the biomass for acute toxicity removal. A six-litre batch bioreactor was operated for 52.5 hours (Run 1), and a 15 L batch bioreactor was operated for 120 hours (Run 2). In order to assess the abiotic rate of volatilization, a stripping test was also performed using the six-litre batch reactor. In both runs, the BOD and COD reduction occurred over the first 24 hours of treatment. The BOD removal was 92-96%, and the COD removal was 73-75%. These values are similar to the removal levels reported at the Chevron refinery WWTP. Stripping accounted for 3% of the COD removal over 52.5 hours. Since stripping was insignificant, the compounds contributing to BOD and COD were most likely removed via biodegradation. Both runs showed similar patterns of toxicity removal. Rather than being continuously removed, as in the case of BOD and COD, toxicity appeared to be removed in discrete stages. The first stage of toxicity removal corresponded to the degradation of BOD and COD, and the second stage occurred after BOD and COD had been removed. The raw wastewater in Runs 1 and 2 had a 5-minute EC₅₀ of 4.6+0.5% and 4.9±0.4%, respectively. In Run 1, the toxicity was reduced to a 5-rninute EC50 of 7.9±0.7% in 10 hours, and further removal did not occur until after 28 hours. In Run 2, a 5-minute EC₅₀ of 16±3.2% was achieved over the first 10 hours, and the toxicity remained at this level until 48 hours. A second significant toxicity removal step between 48 and 72 hours resulted in a final 5-minute EC₅₀ of 27.8±1.6%.
Holographic duality for Ising CFT with boundary
Creators: name: Karch, Andreas
name: Luo, Zhu-Xi
name: Sun, Hao-Yu
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We extend the holographic duality between 3d pure gravity and the 2d Ising CFT proposed in [Phys. Rev. D 85 (2012) 024032] to CFTs with boundaries. Besides the usual asymptotic boundary, the dual bulk spacetime now has a real cutoff, on which live branes with finite tension, giving Neumann boundary condition on the metric tensor. The strongly coupled bulk theory requires that we dress the well-known semiclassical AdS/BCFT answer with boundary gravitons, turning the partition function into the form of Virasoro characters. Using this duality, we relate the brane tensions to the modular S-matrix elements of the dual BCFT and derive the transformation between gravitational solutions with different brane tensions under modular S action.
description: 16+8 pages, v3
Kwak'wala elicitation on various topics
Creators: name: Bracic, Violet
name: Child, Mildred
name: Child, Sara
name: Sardinha, Katie
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2015
Subjects: subject: kwk
subject: Kwak'wala language

description: Elicitation on various topics, including: causal situations with a large variety of verbs; intentional versus unintentional and direct versus indirect causation; mental causation. Contains a semi-elicited narrative about committing something to memory.
Bänziger, Andreas; Berger, Roman; Buhrer, Jean-Claude: Lateinamerika: Abhängigkeit und Gewalt : Reihe: Stichwörter zu Lateinamerika Nr.34
Creators: name: Müller, Reinhart
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 24 Nr. 2 (1975): Ökumenische Rundschau, Band 24, Heft 2
การรับรู้เกี่ยวกับเชียงใหม่ของกลุ่มชาวญี่ปุ่นสูงอายุที่พำนักระยะยาว
Creators: name: พิชญลักษณ์ พิชญกุล
Publisher: name: สมาคมญี่ปุ่นศึกษาแห่งประเทศไทย
Year: 2018
Subjects: การรับรู้
เชียงใหม่
ชาวญี่ปุ่นสูงอายุ
พำนักระยะยาว

description: วารสารเครือข่ายญี่ปุ่นศึกษา, 8, 2, 38-57
SOME MAJOR TRENDS AFFECTING THE STRUCTURE OF AGRICULTURE IN MINNESOTA AND THE UNITED STATES; Proceedings of the Fifth Joint Conference on Agriculture, Food, and the Environment, June 17-18, 1996, Padova, Italy
Creators: name: Raup, Philip M.
name: Raup, Philip M.
Publisher: name: Unknown
Year: 1996
Subjects: Farm Management

description: Two of the major trends shaping the evolution of agriculture in the United States are reduced diversification and increased risk in grain-crop production. This paper will attempt to document these trends since 1950, with data for one state, Minnesota. Since the state produces no cotton, rice, tobacco, or subtropical fruit and vegetable crops, there can be no pretension that it represents the full range of land use in U.S. agriculture. Minnesota has been a significant producer of all of the principle grain crops, livestock products, sugar beets, and oil seeds, and it bridges the boundary between the dairy belt and the grain belt in the Mid-West. With these limitations, Minnesota data provide revealing evidence of changes over the half-century since World War II that are redefining the structure of American agriculture. The primary data sources are the time series of annual data maintained by the Minnesota Agricultural Statistics Service, supplemented by data from annual studies of the Minnesota rural Real Estate market, conducted by the University of Minnesota.