cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The formation of galaxy stellar cores by the hierarchical merging of supermassive black holes
Creators: name: Volonteri, Marta
name: Madau, Piero
name: Haardt, Francesco
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate a hierarchical structure formation scenario in which galaxy stellar cores are created from the binding energy liberated by shrinking supermassive black hole (SMBH) binaries. The binary orbital decay heats the surrounding stars, eroding a preexisting 1/r^2 stellar cusp. We follow the merger history of dark matter halos and associated SMBHs via cosmological Monte Carlo realizations of the merger hierarchy from early times to the present in a LCDM cosmology. Massive black holes get incorporated through a series of mergers into larger and larger halos, sink to the center owing to dynamical friction, accrete a fraction of the gas in the merger remnant to become supermassive, and form a binary system. Stellar dynamical processes drive the binary to harden and eventually coalesce. A simple scheme is applied in which the loss cone is constantly refilled and a constant density core forms due to the ejection of stellar mass. We find that a model in which the effect of the hierarchy of SMBH interactions is cumulative and cores are preserved during galaxy mergers produces at the present epoch a correlation between the `mass deficit' (the mass needed to bring a flat inner density profile to a 1/r^2 cusp) and the mass of the nuclear SMBH, with a normalization and slope comparable to the observed relation. Models in which the mass displaced by the SMBH binary is replenished after every major galaxy merger appear instead to underestimate the mass deficit observed in `core' galaxies.
description: emulateapj, 6 pages, 4 figures, revised version to appear in ApJ August 20, 2003 issue
Government Intervention in Pakistan's Agricultural Economy
Creators: name: Ender, Gary
name: Ender, Gary
Publisher: name: Unknown
Year: 1990
Subjects: subject: Agricultural and Food Policy
subject: Political Economy
subject: Pakistan
subject: cotton
subject: wheat
subject: rice
subject: producer subsidies
subject: PSE
subject: consumer subsidies
subject: CSE
subject: GATT
subject: trade liberalization

description: This report analyzes the nature of the Government of Pakistan's policy interventions in the agricultural sector using producer and consumer subsidy equivalents (PSE's and CSE's). It outlines the Government's position toward the Uruguay Round of multilateral trade negotiations under the General Agreement on Tariffs and Trade (GATT) and possible changes in Pakistan's policies if trade were liberalized. Commodities examined are cotton, wheat, basmati rice, and coarse rice.
Quasiparticle number fluctuations in superconductors
Creators: name: Wilson, C. M.
name: Prober, D. E.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present a general theory of quasiparticle number fluctuations in superconductors. The theory uses the master equation formalism. First, we develop the theory for a single occupation variable. Although this simple system is insufficient to describe fluctuations in a physical superconductor, it is illustrative, allowing this discussion to serve as a self-contained introduction. We go on to develop a multivariate theory that allows for an arbitrary number of levels with transitions of arbitrary size between levels. We specialize the multivariate theory for two particular cases. First, we consider intrinsic quasiparticle fluctuations. In a previous Letter, these results were used to describe time-resolved measurements of thermodynamic fluctuations in a superconducting Al box [C.M. Wilson, L. Frunzio and D.E. Prober, Phys. Rev. Lett. 87, 067004 (2001)]. Finally, we extend these results to include fluctuations due to extrinsic loss processes.
description: 35 pages (double spaced), 3 figures
Sur les Theoremes I et II de Painleve
Creators: name: Loray, Frank
Publisher: name: arXiv
Year: 2004
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 32S65

description: We lecture on fundamental Painleve's early Theorems on first order ordinary differential equations with many examples. We end-up with two conjectures about the global analytic continuation of holonomy maps locally defined by Theorem II.
Connections, conundrums, and criminality: Understanding local perceptions about and attitudes toward organized crime and corruption in Bosnia and Herzegovina
Creators: name: Corpora, Christopher A.
Publisher: name: American University
Year: 2023

description: Transnational organized crime and enabling corruption emerged after the fall of the Soviet Union as an important empirical fact, forcing many social scientists to address the issue in discussing transition politics and economies. A new literature and series of practices developed in the course of these discussions, attempting to properly account for the growth, endurance, and impact of organized crime and corruption in a quickly changing world. The dissolution of the former Yugoslavia, and in particular of Bosnia and Herzegovina (BiH) provided a unique forum for measuring these tools, as organized crime and corruption emerged as key distracters in the development of a stable democracy and market economy in the region. However, international organizations dominate discussions and suggestions regarding organized crime and corruption in BiH, making it difficult to fully assess the problems in context. Additionally, the problems associated with these activities are not contained and, in some estimations, have increased since the international community began explicitly addressing the issues. Few locally produced studies or serious discussions about these problems are recognized or acknowledged in the current debate. This research aims to fill a gap in knowledge by bringing in the voice of local experts and measuring the differences between them and international perspectives and attitudes. The goal is to suggest more contextually relevant ways for addressing these issues by bridging these gaps and suggesting ways to produce a mutually agreeable approach for analyzing and dealing with organized crime and corruption---and possibly other issues that suffer from the same discord, inhibiting the state building project---in BiH, and beyond.
Coherent perfect absorption in a weakly coupled atom-cavity system
Creators: name: Xiong, Wei
name: Chen, Jiaojiao
name: Fang, Baolong
name: Lam, Chi-Hang
name: You, J. Q.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study coherent perfect absorption (CPA) theoretically based on a weakly coupled atom-cavity system with an optically pumped second-order nonlinear crystal (SOC) embedded in the cavity. Our system does not require a strong coupling, which is often needed for CPA in previous studies but is challenging to implement experimentally in some systems. The role of the SOC is to introduce a tunable effective decay rate of the cavity, which can lead to CPA in the weak coupling regime. The proposed system exhibits bistable behaviors, with bistable patterns switchable between conventional and unconventional shapes. By varying the properties of the SOC, the operation point of CPA can be tuned to be inside or outside the bistable regime. It can also be located at the upper or the lower stable branch or even the unstable branch of the bistable hysteresis loop. It is however robust against the parameters of the SOC for any fixed effective decay rate. Our system can potentially be applied to realize optical devices such as optical switches in the weakly coupled regime.
description: 7 pages, 4 figures
A counterexample to the Bollobás-Riordan conjectures on sparse graph limits
Creators: name: Sah, Ashwin
name: Sawhney, Mehtaab
name: Tidor, Jonathan
name: Zhao, Yufei
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: Bollobás and Riordan, in their paper "Metrics for sparse graphs," proposed a number of provocative conjectures extending central results of quasirandom graphs and graph limits to sparse graphs. We refute these conjectures by exhibiting a sequence of graphs with convergent normalized subgraph densities (and pseudorandom $C_4$-counts), but with no limit expressible as a kernel.
Connections, conundrums, and criminality: Understanding local perceptions about and attitudes toward organized crime and corruption in Bosnia and Herzegovina
Creators: name: Corpora, Christopher A.
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 44
subject: Human society
classificationCode: 4402
subject: Criminology
subject: FOS: Law
classificationCode: 4408
subject: Political science
subject: FOS: Political science

description: Transnational organized crime and enabling corruption emerged after the fall of the Soviet Union as an important empirical fact, forcing many social scientists to address the issue in discussing transition politics and economies. A new literature and series of practices developed in the course of these discussions, attempting to properly account for the growth, endurance, and impact of organized crime and corruption in a quickly changing world. The dissolution of the former Yugoslavia, and in particular of Bosnia and Herzegovina (BiH) provided a unique forum for measuring these tools, as organized crime and corruption emerged as key distracters in the development of a stable democracy and market economy in the region. However, international organizations dominate discussions and suggestions regarding organized crime and corruption in BiH, making it difficult to fully assess the problems in context. Additionally, the problems associated with these activities are not contained and, in some estimations, have increased since the international community began explicitly addressing the issues. Few locally produced studies or serious discussions about these problems are recognized or acknowledged in the current debate. This research aims to fill a gap in knowledge by bringing in the voice of local experts and measuring the differences between them and international perspectives and attitudes. The goal is to suggest more contextually relevant ways for addressing these issues by bridging these gaps and suggesting ways to produce a mutually agreeable approach for analyzing and dealing with organized crime and corruption---and possibly other issues that suffer from the same discord, inhibiting the state building project---in BiH, and beyond.
Antechinus godmani
Creators: name: Dyck, Steve Van
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Dasyuromorphia
Dasyuridae
Antechinus
Antechinus godmani

description: (12) A. arktos versus  A. godmani (Thomas)
 Pelage: A. arktos has a brownish-grey head that changes markedly to an orange-brown rump, fuscous black hindfeet, a finely-furred, black tail; A. godmani is more uniformly brown on the head and back with a nakedlooking tail.
 External Measurements: A. arktos is similar in external body measurements to A. godmani (see Table 5).
 Craniodental Characters: A. arktos is smaller than A. godmani in absolute measurement for a range of measurements in males and females: IPV, M 2 W and M 2 W. A. arktos is significantly smaller than A. godmani for R- LC 1, R-LM 1 T, SWR-LC 1 B and TC in males and at SWR-LC 1 B and TC in females. A. arktos is larger than A. godmani in absolute measurement at APV and NW in males and at APV in females. A. arktos is significantly larger than A. godmani at NWR in males (Table 5).
 Other Comments: A. arktos occur in south-east Qld and north-east NSW in areas of high elevation and rainfall on the Tweed Volcano caldera, whereas A. godmani is known from only the wet tropics in north-east Qld. Genetics: uncorrected pairwise range differences at the mitochondrial gene CytB between A. arktos and A. godmani are 13.2– 14.1%.
description: Published as part of Dyck, Steve Van, 2014, The Black-tailed Antechinus, Antechinus arktos sp. nov.: a new species of carnivorous marsupial from montane regions of the Tweed Volcano caldera, eastern Australia, pp. 101-133 in Zootaxa 3765 (2) on page 117, DOI: 10.11646/zootaxa.3765.2.1, http://zenodo.org/record/5045725
Gauge invariance, infrared/collinear singularities and tree level matrix element for e+ e- to nu_e bar nu_e gamma gamma
Creators: name: Was, Z.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: One of the necessary steps in constructing high precision option of KKMC was to install the double bremsstrahlung matrix element for the process e+ e- to nu_e bar nu_e into the scheme of Coherent Exclusive Exponentiation. The process is also interesting because of gauge cancellation of contributions for photon emission from incoming fermion lines and t-channel W. The QED U(1) gauge properties require terms of the triple and quatric gauge couplings to be taken into considerations as well. Thanks to expansion starting from the approximation of contact interaction, good example to study the internal structure of the amplitude is available. In the developed scheme, natural separation of the complete amplitude into gauge invariant parts is straightforward. Each part has well defined physical interpretation, which after partial integration over phase space provides terms: infrared singular, leading log, next-to-leading-log, etc. Contributions related to triple and quatric gauge coupling of W (extracted with the help of expansion around contact W-interaction), have been ordered as well. The separation is also helpful, to define extrapolation/reduction procedure of CEEX exponentiation for the nu_e channel.
description: 1+27 pages, 1 eps format figure
Multipole expansion for HI intensity mapping experiments: simulations and modelling
Creators: name: Cunnington, Steven
name: Pourtsidou, Alkistis
name: Soares, Paula S.
name: Blake, Chris
name: Bacon, David
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a framework and an open-source python toolkit to analyse the 2-point statistics of 3D fluctuations in the context of HI intensity maps using the multipole expansion formalism. We include simulations of the cosmological HI signal using N-body and log-normal methods, foregrounds and their removal, as well as instrumental effects. Using these simulations and analytical modelling, we investigate the impact of foreground cleaning and the instrumental beam on the power spectrum multipoles as well as on the Fourier space clustering wedges. We find that both the instrumental beam and the foreground removal can produce a quadrupole (and a hexadecapole) signal, and demonstrate the importance of controlling and accurately modelling these effects for precision radio cosmology. We conclude that these effects can be modelled with reasonable accuracy using our multipole expansion technique. We also perform an MCMC analysis to showcase the effect of foreground cleaning on the estimation of the HI abundance and bias parameters. The accompanying python toolkit is available at https://github.com/IntensityTools/MultipoleExpansion, and includes an interactive suite of examples to aid new users.
description: 21 pages, 14 figures
Empirical analysis of money demand in China: A cointegration approach
Creators: name: Gu, Chunhui
Publisher: name: American University
Year: 2023

description: This dissertation investigates whether stable long-run money demand functions for both narrow money and broad money exist in China over the period 1952 to 2000 and for the post-reform period 1982--2000. To achieve this objective, the Johansen Maximum likelihood procedure (Johansen 1991) and the dynamic OLS procedure (Stock and Watson 1993) are employed to estimate the long-run equilibrium relationships between real money balances and their determinants. The Gregory and Hansen tests (Gregory and Hansen 1996) are applied to examine the possible structural breaks in money demand functions. Our empirical results indicate that for both narrow money demand and broad money, there exist long-run money demand functions over the period 1952--2000. Over the post-reform period 1982--2000, there exists a long-run money demand function for broad money holdings, but not for narrow money holdings. Our estimated results from the Johansen procedure are consistent with those from the dynamic OLS procedure, indicating that our empirical results are robust. It is evident that income elasticites are substantially greater unity for both narrow money holdings and broad money holdings. The Gregory and Hansen tests suggest a structural break in broad money demand function. The structural break occurred in 1966.
Empirical analysis of money demand in China: A cointegration approach
Creators: name: Gu, Chunhui
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 38
subject: Economics
classificationCode: 3803
subject: Economic theory

description: This dissertation investigates whether stable long-run money demand functions for both narrow money and broad money exist in China over the period 1952 to 2000 and for the post-reform period 1982--2000. To achieve this objective, the Johansen Maximum likelihood procedure (Johansen 1991) and the dynamic OLS procedure (Stock and Watson 1993) are employed to estimate the long-run equilibrium relationships between real money balances and their determinants. The Gregory and Hansen tests (Gregory and Hansen 1996) are applied to examine the possible structural breaks in money demand functions. Our empirical results indicate that for both narrow money demand and broad money, there exist long-run money demand functions over the period 1952--2000. Over the post-reform period 1982--2000, there exists a long-run money demand function for broad money holdings, but not for narrow money holdings. Our estimated results from the Johansen procedure are consistent with those from the dynamic OLS procedure, indicating that our empirical results are robust. It is evident that income elasticites are substantially greater unity for both narrow money holdings and broad money holdings. The Gregory and Hansen tests suggest a structural break in broad money demand function. The structural break occurred in 1966.
An evaluation of the District of Columbia College Access Act of 1999 and the College Access Improvement Act of 2002
Creators: name: Haar, Charlene K.
Publisher: name: American University
Year: 2023

description: In the 1990s a few state legislatures passed laws intended to reduce the rate of students dropping out of school; close the educational gaps among the races; help make college affordable, and reward the college-bound to remain in-state. Congress wanted to do all of the above and more. Public Law 106-98 established a tuition subsidy program and Public Law 107-157 expanded the eligibility for both D.C. residents and participating institutions of higher education. This study is an evaluation of the effects of these laws, to determine in part whether the availability of a tuition assistance grant has, in fact "leveled the playing field" for D.C. residents who are seeking a college education. Since 2000, these laws have permitted eligible D.C. residents to apply to public colleges and universities anywhere in the United States, and if admitted, attend by paying the prevailing in-state rates. The difference between the in-state and out-of-state rates is paid for (up to $10,000 per year) by the federally-funded D.C. Tuition Assistance Grant (TAG) program. The evaluation of the documents and the data available from the office of the Mayor of D.C., indicates that this program operates effectively as a tuition subsidy. What is less clear, however, is whether more D.C. residents are attending college because these grants are available. Furthermore, this program is not managed as cost-efficiently as statutory requirements intended. Participation in the program across all of the city's wards which represent a broad socio-economic spectrum suggests equity in implementation practices. After four years, the outcomes are still uncertain for the D.C. TAG program which provides funds for college tuition, but for which academic proficiency is not considered---either at the K--12 level or at the postsecondary level.
Minimum Hardware Requirements for Hybrid Quantum-Classical DMFT
Creators: name: Jaderberg, Ben
name: Agarwal, Abhishek
name: Leonhardt, Karsten
name: Kiffner, Martin
name: Jaksch, Dieter
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We numerically emulate noisy intermediate-scale quantum (NISQ) devices and determine the minimal hardware requirements for two-site hybrid quantum-classical dynamical mean-field theory (DMFT). We develop a circuit recompilation algorithm which significantly reduces the number of quantum gates of the DMFT algorithm and find that the quantum-classical algorithm converges if the two-qubit gate fidelities are larger than 99%. The converged results agree with the exact solution within 10%, and perfect agreement within noise-induced error margins can be obtained for two-qubit gate fidelities exceeding 99.9%. By comparison, the quantum-classical algorithm without circuit recompilation requires a two-qubit gate fidelity of at least 99.999% to achieve perfect agreement with the exact solution. We thus find quantum-classical DMFT calculations can be run on the next generation of NISQ devices if combined with the recompilation techniques developed in this work.
description: 10 pages, 9 figures, 1 table. Updated with minor corrections for publication
On details of the thermodynamical derivation of the Ginsburg--Landau equations
Creators: name: Dmitriev, A. V.
name: Nolting, W.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We examine the procedure of thermodynamical derivation of the Ginsburg--Landau equation for current, which is given unclear and contradictory interpretations in existing textbooks. We clarify all steps of this procedure and find as a consequence a limitation on the validity range of the thermodynamic Ginsburg--Landau theory, which does not seem to be explicitely stated up to now: we conclude that the thermodynamic theory is applicable only to a superconducting specimen that is not a part of an external current-carrying loop.
description: 11 pages. Accepted for publication in 'Superconductor Science and Technology'
Multilocation Evaluation for yield and Yield Related Traits in ThreeWay Cross Maize Hybrids in Kenya
Creators: name: Masila, Benard
name: Langat, Charles
Publisher: name: figshare
Year: 2020
Subjects: subject: 70305 Crop and Pasture Improvement (Selection and Breeding)
subject: FOS: Agriculture, forestry and fisheries

description: Maize (Zea mays L.) is the third most important crop after wheat and rice worldwide. It is the main staple food in Kenya. The objective of this study was to evaluate genotype by environment interactions and yield stability of twenty three-way cross hybrids at four locations in Kenya evaluated in two seasons. The experiment was conducted in an alpha lattice design (Incomplete Randomized Block Design) with three replications. There was significant variation for grain yield among the genotypes, locations and their interaction. Stability analysis was evaluated using the joint regression, additive main effects and multiplicative interactions (AMMI) and GGE biplot methods. The environmental and genotypic means ranged from 2.72 to 7.67 and 2.39 to 5.56 respectively. The regression coefficient (βi) and deviation from regression (s2 di) values of these genotypes ranged from 0.55 to 1.64 and 0.02 to 0.59 respectively. There were also significant differences for genotypes, environments and genotype by environment interaction for the AMMI analysis of variance. The total proportion of variation contributed by genotypes, environments and genotype by environment interaction was 8.82%, 76.03% and 9.17% respectively. When considering the Pi, βi, S2 di and the AMMI biplot analysis, the most stable genotype in the high yielding category in this study considering all stability parameters was WE-CMT-TWC-1001 (G1) followed by WE-CMT-TWC-1003 (G3) and WE-CMT-TWC-1020 (G20). The best genotype with both high mean yield and high stability was WE-CMT-TWC-1003 (G3). The genotypes identified could be utilized as reference for genotype evaluation and tested further for selection.
An evaluation of the District of Columbia College Access Act of 1999 and the College Access Improvement Act of 2002
Creators: name: Haar, Charlene K.
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 39
subject: Education
classificationCode: 3903
subject: Education systems
classificationCode: 3904
subject: Specialist studies in education

description: In the 1990s a few state legislatures passed laws intended to reduce the rate of students dropping out of school; close the educational gaps among the races; help make college affordable, and reward the college-bound to remain in-state. Congress wanted to do all of the above and more. Public Law 106-98 established a tuition subsidy program and Public Law 107-157 expanded the eligibility for both D.C. residents and participating institutions of higher education. This study is an evaluation of the effects of these laws, to determine in part whether the availability of a tuition assistance grant has, in fact "leveled the playing field" for D.C. residents who are seeking a college education. Since 2000, these laws have permitted eligible D.C. residents to apply to public colleges and universities anywhere in the United States, and if admitted, attend by paying the prevailing in-state rates. The difference between the in-state and out-of-state rates is paid for (up to $10,000 per year) by the federally-funded D.C. Tuition Assistance Grant (TAG) program. The evaluation of the documents and the data available from the office of the Mayor of D.C., indicates that this program operates effectively as a tuition subsidy. What is less clear, however, is whether more D.C. residents are attending college because these grants are available. Furthermore, this program is not managed as cost-efficiently as statutory requirements intended. Participation in the program across all of the city's wards which represent a broad socio-economic spectrum suggests equity in implementation practices. After four years, the outcomes are still uncertain for the D.C. TAG program which provides funds for college tuition, but for which academic proficiency is not considered---either at the K--12 level or at the postsecondary level.
Triepeolus matildae Rightmyer 2014
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: Triepeolus matildae Rightmyer, 2014
[Holotype: AMNH; ♀ San Diego, San Diego Co., California, USA; July 9, 2012]
This species is distributed throughout the CFP. In BC, one female has been recorded in the Succulent Coastal Matorral in San Quintin (Rightmyer et al. 2014). See fig. 133.
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 205, DOI: 10.11646/zootaxa.5522.1.1, http://zenodo.org/record/13920532
Balmer Lines as Diagnostics of Physical Conditions in AGN Broad Emission Line Regions
Creators: name: Popovic, L. C.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Using a well known method for laboratory plasma diagnostic, the Boltzmann-plot, we discuss the physical properties in Broad Line Region (BLR) of Active Galactic Nuclei (AGN). We apply the Boltzmann-plot method to Balmer lines on a sample of 14 AGN, finding that it may indicate the existence of "Case B" recombination or Partial Local Thermodynamical Equilibrium (PLTE). For BLR of AGN, where PLTE exists, we estimated the electron temperature and density of BLR. The estimated electron temperature ($T\sim 13000 - 37000$ K) are in good agreement with previous estimates. The estimated electron densities depend on opacity of the emitting plasma in BLR. They are from $N_e\sim 10^9\rm cm^{-3}$ for optically thick to $N_e\sim 10^{14}\rm cm^{-3}$ for optically thin emission plasma in BLR. The estimated electron temperature has been shown to be velocity dependent, and it decreases for higher velocities. Although the alternative explanation than PLTE indicated by Boltzmann-plot may be considered (e.g. high intrinsic reddening), the method may give the quick estimate of physical conditions in BLR before to apply the sophisticated methods.
description: 7 figs. and 2 tables. accepted to ApJ
Between Quantum Virasoro Algebra \cal{L}_c and Generalized Clifford Algebras
Creators: name: Kinani, E. H. El
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this paper we construct the quantum Virasoro algebra ${\mathcal{L}}_{c}$ generators in terms of operators of the generalized Clifford algebras $C_{n}^{k}$. Precisely, we show that ${\mathcal{L}}_{c}$ can be embedded into generalized Clifford algebras.
Contextual renewal of cocaine seeking occasioned by a discriminative stimulus
Creators: name: Kearns, David
Publisher: name: American University
Year: 2023

description: The goal of this experiment was to determine whether contextual renewal of cocaine seeking occasioned by operant discriminative stimuli (S DS) would occur. Rats were trained to nose-poke for cocaine infusions in the presence of a tone SD, while nose-pokes went unreinforced in the absence of the tone. Once the tone was well established as an S D for cocaine self-administration, extinction of the tone (i.e., nose-pokes in the presence of the tone were no longer reinforced) was conducted in the same context for one group of rats and in a different context for another group of rats. On a test for context renewal, the tone was presented in the original training context for both groups. A reappearance of cocaine seeking in the presence of the tone was observed in the group that had extinction in the different context, but not in the group that had extinction in the original training context. Previous experiments related to contextual renewal of drug seeking are critically evaluated. These results might model human drug relapse after extinction-based treatments.
Gendered Perceptions of Place on York University's Keele Campus through a Lens of Personal Safety
Creators: name: De Iuliis, Jonathan
Publisher: name: Zenodo
Year: 2020
Subjects: urban planning
perception of place
safety
york university
keele campus
place
space
gender identity
interaction

description: The York University Keele Campus is a public space that is primarily used by students, faculty, and staff and at any given moment there can be thousands of individuals on the University campus. With a student population of just over 50,000, York University is one of the largest universities in Canada and resembles a small city. Much like a city, the Keele Campus of York University has been impacted by incidents of sexual assault, robberies, hate crimes and criminal activity that have produced caution amongst those who interact with the Campus. The incidents that have occurred on the Campus have affected many individuals ability to establish a sense of place and cause them to restrict their use of space. On a university campus where incidents are publicized by the socialization between students, media reports, and notification emails, concerns regarding personal safety manifest into perceptions of place that are highly gendered. Through a lens of personal safety, this thesis seeks to understand students perceptions of place on the Keele Campus, identifying how the built environment, students gender identity, and the reputation attributed to space contribute to students perceptions. Moreover, it will explore how the perceptions of place held by students affect their daily geographies of the Keele Campus and challenge the gender normative direction of the Crime Prevention Through Environmental Design model that exists in the governing and operation of the Keele Campus.
Two major constraints on the inner radii of accretion disks
Creators: name: Zdziarski, Andrzej A.
name: De Marco, Barbara
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The Stefan-Boltzmann law yields a fundamental constraint on the geometry of inner accretion disks in black-hole X-ray binaries. It follows from considering the irradiating flux and the effective temperature of the inner parts of the disk, which implies that a strong quasi-thermal component with the average energy higher than that of a blackbody at the effective temperature has to be present whenever relativistic Fe K fluorescence and reflection features are observed. The apparent absence of such quasi-thermal component with the color temperature of $\sim$1 keV in high-luminosity hard states is not compatible with a strongly irradiated disk extending close to the innermost stable circular orbit. Instead, the disk should be either truncated at a relatively large radius or irradiated by a corona at a large height, which would reduce the effective temperature and bring it to an agreement with the data. We also study constraints on disk/corona models following from comparing the disk densities fitted in literature using variable-density reflection codes with those calculated by us from the ionization parameter, the luminosity and the disk inner radius. We find that the fitted densities are much higher/lower in the hard/soft state of binaries, implying significant problems with the used assumptions and methods.
description: Version matching the published article
Antechinus leo Van Dyck 1980
Creators: name: Dyck, Steve Van
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Dasyuromorphia
Dasyuridae
Antechinus
Antechinus leo

description: (13) A. arktos versus  A. leo Van Dyck
 Pelage: A. arktos has a brownish-grey head that changes markedly to an orange-brown rump, fuscous black hindfeet, a thick-based, finely-furred, black tail and an orange-yellow eye and cheek patch; A. leo is uniformly cinnamon on the head and back with slightly darkened hair forming a mid-dorsal head stripe.
 External Measurements: A. arktos is similar in external body measurements to A. leo (see Table 5).
 Craniodental Characters: A. arktos is smaller than A. leo in absolute measurement for a range of measurements in males and females: M 2 W, R-LC 1, R-LM 1 T, R-LM 2, R-LM 3, SWR-LC 1 B and M 2 W. A. arktos is significantly smaller than A. leo for IPV, NW and R-LM 1 in males and at NW, R-LC 1 and M 2 W in females. A. arktos is larger than A. leo in absolute measurement for a range of measurements in males and females: APV, IOW, HT-B, I 1 -P 3 and UPL, and at I 1 -P 3 in males only (Table 5).
 Other Comments: A. arktos occur in south-east Qld and north-east NSW in areas of high elevation and rainfall on the Tweed Volcano caldera, whereas A. leo is known only from north of Princess Charlotte Bay, on Cape York Peninsula in far northern Qld. Genetics: uncorrected pairwise range differences at the mitochondrial gene CytB between A. arktos and A. leo are 12.8–13.6%.
description: Published as part of Dyck, Steve Van, 2014, The Black-tailed Antechinus, Antechinus arktos sp. nov.: a new species of carnivorous marsupial from montane regions of the Tweed Volcano caldera, eastern Australia, pp. 101-133 in Zootaxa 3765 (2) on page 117, DOI: 10.11646/zootaxa.3765.2.1, http://zenodo.org/record/5045725
Contextual renewal of cocaine seeking occasioned by a discriminative stimulus
Creators: name: Kearns, David
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 52
subject: Psychology
subject: FOS: Psychology

description: The goal of this experiment was to determine whether contextual renewal of cocaine seeking occasioned by operant discriminative stimuli (S DS) would occur. Rats were trained to nose-poke for cocaine infusions in the presence of a tone SD, while nose-pokes went unreinforced in the absence of the tone. Once the tone was well established as an S D for cocaine self-administration, extinction of the tone (i.e., nose-pokes in the presence of the tone were no longer reinforced) was conducted in the same context for one group of rats and in a different context for another group of rats. On a test for context renewal, the tone was presented in the original training context for both groups. A reappearance of cocaine seeking in the presence of the tone was observed in the group that had extinction in the different context, but not in the group that had extinction in the original training context. Previous experiments related to contextual renewal of drug seeking are critically evaluated. These results might model human drug relapse after extinction-based treatments.
Geometry of Bend: Singular Lines and Defects in Twist-Bend Nematics
Creators: name: Binysh, Jack
name: Pollard, Joseph
name: Alexander, Gareth P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We describe the geometry of bend distortions in twist-bend nematic liquid crystals in terms of their fundamental degeneracies, which we call $β$ lines. These represent a new class of line-like topological defect. We use them to construct and characterise novel structures, including grain boundary and focal conic smectic-like defects, Skyrmions, and knotted merons. We analyse their local geometry and global structure, showing that their intersection with any surface is twice the Skyrmion number. Finally, we demonstrate how arbitrary knots and links can be created and describe them in terms of merons, giving a new geometric perspective on the fractionalisation of Skyrmions.
description: 27 pages, 18 figures
Condition Tourism Marketing Assessment of The Corona Virus Problem
Creators: name: Fitra Ramadhan
Publisher: name: figshare
Year: 2020
Subjects: subject: 159999 Commerce, Management, Tourism and Services not elsewhere classified
subject: FOS: Economics and business

description: Essay in diberi judul Condition Tourism Marketing Assessment of The Corona Virus
 Problem in Indonesia (West Sumatera) 
Triepeolus norae Cockerell 1907
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: Triepeolus norae Cockerell, 1907 *
[Holotype: USNM; ♀ Mesilla Park, Doña Ana Co., New Mexico, USA; 16 May] This species represents a new record for the BCP based on a female collected in the Succulent Coastal Matorral in June 1941 and identified by Molly Rightmyer (SDNHM). See fig. 134.
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 205, DOI: 10.11646/zootaxa.5522.1.1, http://zenodo.org/record/13920532
A probabilistic approach to second order variational inequalities with bilateral constraints
Creators: name: Ghosh, Mrinal K
name: Rao, K S Mallikarjuna
Publisher: name: arXiv
Year: 2004
Subjects: subject: Analysis of PDEs (math.AP)
subject: Probability (math.PR)
subject: FOS: Mathematics

description: We study a class of second order variational inequalities with bilateral constraints. Under certain conditions we show the existence of a unique viscosity solution of these variational inequalities and give a stochastic representation to this solution. As an application, we study a stochastic game with stopping times and show the existence of a saddle point equilibrium.
description: 12 pages, no figures, no tables
Triepeolus partitus Rightmyer 2008
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: Triepeolus partitus Rightmyer, 2008
[Holotype: AMNH; ♀ 8.05 km South San Simon, Cochise Co., Arizona, USA; August 23, 1996]
Triepeolus partitus is distributed throughout northern Mexico and the southern USA. We reviewed two females cited by Rightmyer (2008) collected in the Cape Mountains in October 1941 (CASC). See fig. 134.
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 206, DOI: 10.11646/zootaxa.5522.1.1, http://zenodo.org/record/13920532
A scoping review of adaptive expertise in education
Creators: name: Kua, Joanne
name: Wee-Shiong Lim
name: Teo, Winnie
name: Edwards, Roger A.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Marine Biology
subject: Science Policy
subject: Hematology

description: Adaptive expertise encompasses efficiency and innovation; however little is known about the state of research of adaptive expertise in medical education. Our scoping review summarizes existing evidence in the conceptual frameworks, development, and measurement for adaptive expertise. We searched Pubmed, MEDLINE, ERIC, CINAHL and PsycINFO for original research articles published from 1986 onwards in English. Given the heterogeneity of the studies, no quantitative syntheses were conducted and the articles were summarized qualitatively. Of the 48 articles that met inclusion criteria, 19 examined conceptual frameworks, 24 explored interventions supporting development and 5 examined measurement. Conceptual frameworks are consistent within and beyond health professions education. Factors influencing development include: predisposing factors such as knowledge (ability to integrate knowledge and innovate), beliefs and attitudes (high motivation and humility), enabling factors such as skills (people skills, implementing reflection and scholarly activities), resources such as curricular enablers (providing variability of cases, allowing flexibility to generate solutions, critical appraisal of textbooks) and reinforcing factors such as mentor-guided feedback and constant curricular review. Two validated measurement tools exist for adaptive expertise. Substantial research opportunities exist in studying interventions involving the development of adaptive expertise. Notable gaps exist in the development and validation of measurement tools.
Regional scores for localizing genes
Creators: name: Makhlouf, Fairouz T.
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 49
subject: Mathematical sciences
classificationCode: 4905
subject: Statistics
subject: FOS: Mathematics

description: This dissertation develops a regional score method to help find the location of a gene contributing to a specific trait. We adapt a technique from signal processing using weighted moving average to smooth the Identity By Descent (IBD) scores and the Identity by State (IBS) scores to localize contributing genes. To accomplish this, the IBD and the IBS processes are defined and their properties are derived for different cases. In addition, the Identity By Descent Proportion (IBDP), Identity By State Proportion (IBSP), the Normalized Identity By Descent (ZIBDP) and the Normalized Identity By State (ZIBSP) are defined and their properties derived. The regional scores method smooths the IBDP/IBSP by summing them over all of the markers on the chromosome with markers close to the location of interest weighted more heavily. The regional scores can be found at any location on the chromosome. It also allows for unevenly spaced markers and adjusts for the spacing. Here we implement the regional score method with the Haldane, no interference model for recombination. Simulations of a whole genome that consists of 20 chromosomes each of length 100 with markers every 10 cM have been made for different contributing gene cases and for different number of sib pairs. Critical values are determined for both the regional scores and ZIBDP/ZIBSP scores based on results from simulating the genome under the null hypothesis of no contributing gene. Then the regional scores and the ZIBDP/ZIBSP from the above simulations were compared to their corresponding threshold. The results indicated that in general the number of times each method detected a contributing gene is higher with the regional score method with higher true positives and similar false positive compared to the ZIBDP/ZIBSP methods. We also provide a computer program (SIGLEVEL) to calculate the significance level and the thresholds for genetic linkage.