cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Determination of 1-arylpiperazines, a new class of designer drugs, in serum
Creators: name: Long, Melissa
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 34
subject: Chemical sciences
subject: FOS: Chemical sciences
classificationCode: 3401
subject: Analytical chemistry

description: The 1-arylpiperazines, including benzylpiperazine, 1,3-chlorophenylpiperazine, 1,4-methylphenylpiperazine, and 1,3-trifluoromethylphenylpiperazine, are a relatively new class of designer drugs that have come to be of interest. The research presented here outlines both a LC/MS based method and a GC/MS based method to detect this class of drugs in serum. In these analyses, the highest accuracy is obtained with the use of internal standards. Although isotopically labeled compounds make the best internal standards, these compounds are not currently available. As a result, structural analogs were examined to determine which would be useful as internal standards, and 1,4-chlorophenylpiperazine and 1,3-methylphenylpiperazine were selected as the GC/MS and LC/MS internal standards, respectively. The compounds were isolated from serum using solid phase extraction, and samples analyzed using GC/MS were derivatized using heptafluorobutyric acid anhydride with ethyl acetate, while samples analyzed by LC/MS required no derivatization. Both methods were validated by testing serum samples spiked to three levels: 0.3 mug/mL, 1 mug/mL, and 5 mug/mL. While both methods worked, statistical analysis proves that the LC/MS based method is the better of the two for quantitation, and the GC/MS method is best for identification.
Melecta (Melectomimus) edwardsii Cresson 1878
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: Melecta (Melectomimus) edwardsii Cresson, 1878
[Lectotype: ANSP: ♂ California, USA]
Melecta edwardsii is an uncommon species that is distributed in the CFP in California, USA, and BC, Mexico. The BBPT collected one male in the Coastal Sage Matorral south of Ensenada in March 2021 (MABC). See fig. 140.
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 214, DOI: 10.11646/zootaxa.5522.1.1, http://zenodo.org/record/13920532
Truncated sum of squares estimation of fractional time series models with deterministic trends
Creators: name: Hualde, Javier
name: Orregaard Nielsen, Morten
name: Hualde, Javier
name: Orregaard Nielsen, Morten
Publisher: name: Unknown
Year: 2017
Subjects: subject: Financial Economics
subject: Asymptotic normality
subject: consistency
subject: deterministic trend
subject: fractional process
subject: generalized polynomial trend
subject: noninvertibility
subject: nonstationarity
subject: truncated sum of squares estimation

description: We consider truncated (or conditional) sum of squares estimation of a parametric model composed of a fractional time series and an additive generalized polynomial trend. Both the memory parameter, which characterizes the behaviour of the stochas- tic component of the model, and the exponent parameter, which drives the shape of the deterministic component, are considered not only unknown real numbers, but also lying in arbitrarily large (but finite) intervals. Thus, our model captures different forms of nonstationarity and noninvertibility. As in related settings, the proof of con- sistency (which is a prerequisite for proving asymptotic normality) is challenging due to non-uniform convergence of the objective function over a large admissible parameter space, but, in addition, our framework is substantially more involved due to the com- petition between stochastic and deterministic components. We establish consistency and asymptotic normality under quite general circumstances, finding that results dif- fer crucially depending on the relative strength of the deterministic and stochastic components.
Numerical Simulations of Astrophysical Jets from Keplerian Disks with Periodic Ejection
Creators: name: Vitorino, B. F.
name: Jatenco-Pereira, V.
name: Opher, R.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present 2.5-dimensional time-dependent simulations of nonrelativistic and nonradiative outflows from sinusoidally perturbed Keplerian accretion disks. A sinusoidal perturbation is introduced in the velocity of the gas ejected from the surface of the disk into a cold corona. In the simulations, the disk is a fixed boundary from which the gas is ejected with a pulsed velocity. The maximum value of this velocity is taken to be a thousandth of the local Keplerian disk velocity. It was found that for large periods, the structures in the jet tend to fragment into smaller substructures. For small values of the period, the structures tend to dissipate, while for medium values of the period, they tend to persist.
description: 27 pages, 11 figures (by e-mail to braulo@astro.iag.usp.br), accepted for publication in ApJ
Competing for Capital: Auditing and Credibility in Financial Reporting
Creators: name: Boleslavsky, Raphael
name: Carlin, Bruce
name: Cotton, Christopher
name: Boleslavsky, Raphael
name: Carlin, Bruce
name: Cotton, Christopher
Publisher: name: Unknown
Year: 2017
Subjects: Demand and Price Analysis
Financial Economics

description: When self-interested agents compete for scarce resources, they often exaggerate the promise of their activities. As such, principals must consider both the quality of each opportunity and each agent’s credibility. We show that principals are better off with less transparency because they gain access to better investments. This is due to a complementarity between the agents’ effort provision and their ability to exaggerate. As such, it is suboptimal for principals to prevent misreporting, even if doing so is costless. This helps explain why exaggeration is ubiquitous during allocation decisions: money management, analyst coverage, private equity fundraising, and venture capital investments.
3D-CariGAN: An End-to-End Solution to 3D Caricature Generation from Face Photos
Creators: name: Ye, Zipeng
name: Xia, Mengfei
name: Sun, Yanan
name: Yi, Ran
name: Yu, Minjing
name: Zhang, Juyong
name: Lai, Yu-Kun
name: Liu, Yong-jin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Caricature is a type of artistic style of human faces that attracts considerable attention in the entertainment industry. So far a few 3D caricature generation methods exist and all of them require some caricature information (e.g., a caricature sketch or 2D caricature) as input. This kind of input, however, is difficult to provide by non-professional users. In this paper, we propose an end-to-end deep neural network model that generates high-quality 3D caricatures directly from a normal 2D face photo. The most challenging issue for our system is that the source domain of face photos (characterized by normal 2D faces) is significantly different from the target domain of 3D caricatures (characterized by 3D exaggerated face shapes and textures). To address this challenge, we: (1) build a large dataset of 5,343 3D caricature meshes and use it to establish a PCA model in the 3D caricature shape space; (2) reconstruct a normal full 3D head from the input face photo and use its PCA representation in the 3D caricature shape space to establish correspondences between the input photo and 3D caricature shape; and (3) propose a novel character loss and a novel caricature loss based on previous psychological studies on caricatures. Experiments including a novel two-level user study show that our system can generate high-quality 3D caricatures directly from normal face photos.
description: Accepted by IEEE Transactions on Visualization and Computer Graphics
Risk is Risk?
Creators: name: Stomper, Alex
name: VierÃÿ, Marie-Louise
name: Stomper, Alex
name: VierÃÿ, Marie-Louise
Publisher: name: Unknown
Year: 2017
Subjects: Financial Economics

description: We analyze the relation between firms' exposure to exogenous business risk and their financing choices, based on a sample of firms for which we can measure such exposure. The results show that firms more exposed to exogenous risk use less debt financing. We also analyze the relation between the volatility of the firms' returns-on-assets, and their use of debt financing. The result is the opposite of that obtained for exogenous risk: we find a positive relationship between debt financing and the risk of firms. Overall, our results show that different types of risk are associated with different financing choices. While exogenous risk causes firms to use less debt financing, debt financing causes firms to take risk endogenously. This result explains contradictory findings regarding the relation between risk and debt financing in the prior literature.
Determination of 1-arylpiperazines, a new class of designer drugs, in serum
Creators: name: Long, Melissa
Publisher: name: American University
Year: 2023

description: The 1-arylpiperazines, including benzylpiperazine, 1,3-chlorophenylpiperazine, 1,4-methylphenylpiperazine, and 1,3-trifluoromethylphenylpiperazine, are a relatively new class of designer drugs that have come to be of interest. The research presented here outlines both a LC/MS based method and a GC/MS based method to detect this class of drugs in serum. In these analyses, the highest accuracy is obtained with the use of internal standards. Although isotopically labeled compounds make the best internal standards, these compounds are not currently available. As a result, structural analogs were examined to determine which would be useful as internal standards, and 1,4-chlorophenylpiperazine and 1,3-methylphenylpiperazine were selected as the GC/MS and LC/MS internal standards, respectively. The compounds were isolated from serum using solid phase extraction, and samples analyzed using GC/MS were derivatized using heptafluorobutyric acid anhydride with ethyl acetate, while samples analyzed by LC/MS required no derivatization. Both methods were validated by testing serum samples spiked to three levels: 0.3 mug/mL, 1 mug/mL, and 5 mug/mL. While both methods worked, statistical analysis proves that the LC/MS based method is the better of the two for quantitation, and the GC/MS method is best for identification.
Poverty traps: A nexus of work, credit and vulnerability
Creators: name: Messier, John D.
Publisher: name: American University
Year: 2023

description: This thesis considers the case of a household in a developing country that operates an informal enterprise as its source of revenue. Therefore, the household is both a unit of consumption and a unit of production, with multiple levels of connection between its dual roles. Households that operate an informal enterprise face pervasive risk and vulnerability in meeting consumption needs but are unable to separate consumption and production risk. Various coping strategies are available to limit exposure to risk, with the focus here on the use of credit to smoothen consumption. Households that operate an informal enterprise crowd out enterprise investment when credit is used to smoothen consumption. Debt service requirements reduce future investment in the enterprise and lower future potential earnings. Using a unique dataset, The Urban Poor Home Worker Survey-Ecuador, this thesis employs various econometric techniques to explore the impact of past credit use and debt service on current enterprise investment. The results support the hypothesis that household that have used credit for consumption in the past have lower current investment than those that have not borrowed or borrowed for productive investment. Furthermore, considering households without current debt due to either not borrowing during the past 12 months preceding the survey or having repaid their debt, household that used credit for consumption purposes have lower current earnings, supporting the notion of enhanced vulnerability and poverty trap due to past credit use. Given the pervasive use of consumption credit for food and health care expenditure, to reduce vulnerability governments should provide low cost social services to the urban poor.
Commensurability effects induced by a periodic array of nanoscale anti-dots in Nb superconductor
Creators: name: Zhukov, A. A.
name: Filby, E. T.
name: de Groot, P. A. J.
name: Metlushko, V. V.
name: Ilic, B.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study the interactions of the vortex lattice with a periodic square array of holes in a superconducting Nb film using magnetic and resistive measurements. Three different temperature regions have been observed. They are governed by interplay between vortex-vortex interactions and pinning by holes. At low temperatures flux jumps suppress the commensurability anomalies. In all measurements a peak has been observed close to commensurate states 5-7. The Cole-Cole plot reveals significant changes in the flux penetration mechanism at this point.
description: 12 pages, 5 figures
Classification of Blazar Candidates of Uncertain Type from the Fermi LAT 8-Year Source Catalog with an Artificial Neural Network
Creators: name: Kovačević, Miloš
name: Chiaro, Graziano
name: Cutini, Sara
name: Tosti, Gino
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The Fermi Large Area Telescope (LAT) has detected more than 5000 gamma-ray sources in its first 8 years of operation. More than 3000 of them are blazars. About 60 per cent of the Fermi-LAT blazars are classified as BL Lacertae objects (BL Lacs) or Flat Spectrum Radio Quasars (FSRQs), while the rest remain of uncertain type. The goal of this study was to classify those blazars of uncertain type, using a supervised machine learning method based on an artificial neural network, by comparing their properties to those of known gamma-ray sources. Probabilities for each of 1329 uncertain blazars to be a BL Lac or FSRQ are obtained. Using 90 per cent precision metric, 801 can be classified as BL Lacs and 406 as FSRQs while 122 still remain unclassified. This approach is of interest because it gives a fast preliminary classification of uncertain blazars. We also explored how different selections of training and testing samples affect the classification and discuss the meaning of network outputs.
description: Change of e-mail
Intersections in genus 3 and the Boussinesq hierarchy
Creators: name: Shadrin, S. V.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: In this note we prove that the enlarged Witten's conjecture is true in the case of the Boussinesq hierarchy for correlators in genus 3 with descendants only at one point.
Spectral densities and partition functions of modular quantum systems as derived from a central limit theorem
Creators: name: Hartmann, Michael
name: Mahler, Guenter
name: Hess, Ortwin
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Using a central limit theorem for arrays of interacting quantum systems, we give analytical expressions for the density of states and the partition function at finite temperature of such a system, which are valid in the limit of infinite number of subsystems. Even for only small numbers of subsystems we find good accordance with some known, exact results.
description: 6 pages, 4 figures, some steps added to derivation, accepted for publication in J. Stat. Phys
An Overview of the Canadian Banking System: 1996 to 2015
Creators: name: McKeown, Robert
name: McKeown, Robert
Publisher: name: Unknown
Year: 2017
Subjects: Financial Economics

description: From 1996 to 2015, total assets at Canadian and foreign banks operating in Canada grew four-times in size. This growth occurred with neither a significant regulatory change, such as the repeal of Glass-Steagall, nor the introduction of new business lines, such as wealth management or investment banking. Using data from CANSIM and a little used dataset from OSFI, I describe how the Canadian banks earn revenue, fund business activities, and pay expenses. The success of the Canadian banking system can be attributed to: i) a focus on retail and branch-level banking, ii) a preference for deposit-financing, and iii) minimizing costs, particularly noninterest expenses. Furthermore, I provide a broad overview of the data, accounting rules, and trends in Canadian banking. Estimating a reduced form model similar to DeBoskey and Jiang (2012), I find no evidence that the Canadian banks manipulated the provision for credit losses to ‘smooth’ earnings.
Jost-Lehmann-Dyson Representation, Analyticity in Angle Variable and Upper Bounds in Noncommutative Quantum Field Theory
Creators: name: Mnatsakanova, M. N.
name: Vernov, Yu. S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The existence of Jost-Lehmann-Dyson representation analogue has been proved in framework of space-space noncommutative quantum field theory. On the basis of this representation it has been found that some class of elastic amplitudes admits an analytical continuation into complex \cos\vartheta plane and corresponding domain of analyticity is Martin ellipse. This analyticity combined with unitarity leads to Froissart-Martin upper bound on total cross section.
description: LaTeX, 15 pages, improved version, misprints corrected, the references added, to appear in Theor. Math. Phys
Noncommutative Hypergeometry
Creators: name: Volkov, A. Yu.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: A certain special function of the generalized hypergeometric variety is shown to fulfill a host of useful noncommutative identities.
description: 14 pages, LaTeX (amsart)
Poverty traps: A nexus of work, credit and vulnerability
Creators: name: Messier, John D.
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 38
subject: Economics

description: This thesis considers the case of a household in a developing country that operates an informal enterprise as its source of revenue. Therefore, the household is both a unit of consumption and a unit of production, with multiple levels of connection between its dual roles. Households that operate an informal enterprise face pervasive risk and vulnerability in meeting consumption needs but are unable to separate consumption and production risk. Various coping strategies are available to limit exposure to risk, with the focus here on the use of credit to smoothen consumption. Households that operate an informal enterprise crowd out enterprise investment when credit is used to smoothen consumption. Debt service requirements reduce future investment in the enterprise and lower future potential earnings. Using a unique dataset, The Urban Poor Home Worker Survey-Ecuador, this thesis employs various econometric techniques to explore the impact of past credit use and debt service on current enterprise investment. The results support the hypothesis that household that have used credit for consumption in the past have lower current investment than those that have not borrowed or borrowed for productive investment. Furthermore, considering households without current debt due to either not borrowing during the past 12 months preceding the survey or having repaid their debt, household that used credit for consumption purposes have lower current earnings, supporting the notion of enhanced vulnerability and poverty trap due to past credit use. Given the pervasive use of consumption credit for food and health care expenditure, to reduce vulnerability governments should provide low cost social services to the urban poor.
Kuiper Belt Object Sizes and Distances from Occultation Observations
Creators: name: Cooray, Asantha
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: There are several observational campaigns under way to detect kilometer size foreground Kuiper Belt Objects (KBOs) through their occultation of background stars. The interpretation of an occultation light curve, unfortunately, is affected by a geometric degeneracy such that one is unable to determine the KBO size independent of its distance. This degeneracy can be broken through a precise measurement of the relative velocity obtained from simultaneous observations of individual events. While an array of telescopes spread over an area of few square kilometers can be employed, it is unlikely that the relative velocity can be measured to the required accuracy to help break this geometric degeneracy. The presence of diffraction fringes in KBO occultation light curves, when projected sizes of occulted stars are smaller than the Fresnel scale, improves determination of size and distance significantly. In this regard, we discuss the potential role of a dedicated satellite mission for KBO occultation observations. If dwarf stars at the V-band magnitudes of 14th and fainter can be monitored at time intervals of 0.1 seconds with normalized flux errors at the level of 1%, the occultation observations will allow individual KBO sizes and distances to be determined at the level of a few percent or better.
description: 4 pages, 2 figures, To appear in ApJ Letters
Zacosmia maculata BC (MABC
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: Zacosmia maculata (Cresson, 1879)
[Lectotype: ANSP: ♀ Nevada, USA]
Zacosmia maculata exhibits a broad distribution spanning from southern Canada to northern Mexico along the western side of the Rocky Mountains. This species is a brood parasite on bees of Anthophora (Micranthophora) Michener (2007). Within the BCP, it had only been recorded in the Sarcocaulescent Shrubland in 1994 (GBIF 2023). We examined one female collected in the Coastal Sage Matorral in May 1980 (SDNHM). Additionally, the BBPT collected 32 specimens (27 ♂, 5 ♀) in the Coastal Sage Matorral, Chaparral, Baja California Mountains, Lower Colorado Desert and Central Desert (Supplementary Material 1). Voucher specimens are in MABC, and ECOAB. See fig. 139.
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 214, DOI: 10.11646/zootaxa.5522.1.1, http://zenodo.org/record/13920532
Constructing literacy: An examination of discourse in *policy through content analysis
Creators: name: Nebeker, Melia L.
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 39
subject: Education
classificationCode: 3904
subject: Specialist studies in education

description: This study is a close look at the definitions of literacy as manifested in the discursive practices used in U.S. government policy documents. Analysis of documents used content analysis to examine the existence, frequency and relationships among concepts related to literacy within and across a series of eight policy documents. The study was informed by poststructuralist social theory (Foucault and Derrida) the application of such theory to education (Freire) and to democracy (Dewey and Gutmann). It involved the application of analytical approaches to discourse derived from the work of J. P. Gee and J. Ifverson to examine discourse in literacy policy in the U.S., by focusing on language concerning and surrounding literacy using content analysis.
Two-loop QCD Corrections to the Heavy Quark Form Factors: the Vector Contributions
Creators: name: Bernreuther, W.
name: Bonciani, R.
name: Gehrmann, T.
name: Heinesch, R.
name: Leineweber, T.
name: Mastrolia, P.
name: Remiddi, E.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present closed analytic expressions of the electromagnetic vertex form factors for heavy quarks at the two-loop level in QCD for arbitrary momentum transfer. The calculation is carried out in dimensional regularization. The electric and magnetic form factors are expressed in terms of 1-dimensional harmonic polylogarithms of maximum weight 4.
description: 79 pages, 3 figures. Version accepted by Nucl. Phys. B. All the results in Section 6 of the paper are available in an electronic form in the file formulas.inc
Constructing literacy: An examination of discourse in *policy through content analysis
Creators: name: Nebeker, Melia L.
Publisher: name: American University
Year: 2023

description: This study is a close look at the definitions of literacy as manifested in the discursive practices used in U.S. government policy documents. Analysis of documents used content analysis to examine the existence, frequency and relationships among concepts related to literacy within and across a series of eight policy documents. The study was informed by poststructuralist social theory (Foucault and Derrida) the application of such theory to education (Freire) and to democracy (Dewey and Gutmann). It involved the application of analytical approaches to discourse derived from the work of J. P. Gee and J. Ifverson to examine discourse in literacy policy in the U.S., by focusing on language concerning and surrounding literacy using content analysis.
Renormalization group evolution induced leptogenesis in the minimal seesaw model with the trimaximal mixing and mu-tau reflection symmetry
Creators: name: Zhao, Zhen-hua
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper, we consider the imbedding of the popular and well-motivated trimaximal mixing and $μ$-$τ$ reflection symmetry (which can help us shape the forms of the neutrino mass matrix) in the minimal seesaw model (which contains much fewer parameters than the general seesaw model) with two TeV-scale right-handed neutrinos (for realizing a low-scale seesaw) of nearly degenerate masses (for realizing a resonant leptogenesis). However, either for the trimaximal mixing scenario (which is realized through the Form Dominance approach here) or for the $μ$-$τ$ reflection symmetry scenario, leptogenesis cannot proceed. To address this issue, we consider the possibility that the special forms of the neutrino mass matrix for the trimaximal mixing and $μ$-$τ$ reflection symmetry are slightly broken by the renormalization group evolution effect, thus allowing leptogenesis to proceed. It is found that in the normal case of the neutrino mass ordering, the baryon asymmetry thus generated can reproduce the observed value. For completeness, we have also extended our analysis to the scenario that two right-handed neutrinos are not nearly degenerate any more. Unfortunately, in this scenario the final baryon asymmetry is smaller than the observed value by several orders of magnitude.
description: 25 pages, 4 figures, version to appear in JHEP
Where are the economies of scale in Canadian banking?
Creators: name: McKeown, Robert
name: McKeown, Robert
Publisher: name: Unknown
Year: 2017
Subjects: Financial Economics
International Development

description: Using a new data set from the Office of the Superintendent of Financial Institutions, I conduct an in-depth study on cost efficiency and returns to scale (RTS) in Canadian banking. I estimate a transcendental log cost function for the six largest Canadian commercial banks which account for approximately 90% of chartered bank assets over the 1996-2011 sample period. The minimal amount of firm entry and exit simplifies many difficulties in the analysis, and the panel dynamic ordinary least squares estimator (PDOLS) provides less biased results than the fixed-effect OLS. Departing from previous studies in banking, I calculate whether the estimated cost function satisfies the microeconomic properties of a monotonicity and price concavity. To my knowledge, this is the first paper to find evidence of constant RTS among the Canadian banks. The result is robust to a number of different asset and price specifications. Furthermore, there is little evidence to suggest cost inefficiencies among the large Canadian banks. This is true whether the Greene (2005) true fixed effects ML estimator is estimated or a distribution-free approach is measured. Combining these two results, the large Canadian banks managed costs efficiently and minimized costs from 1996 to 2011.
How vulnerable is the Canadian banking system to fire-sales?
Creators: name: McKeown, Robert
name: McKeown, Robert
Publisher: name: Unknown
Year: 2017
Subjects: Financial Economics
International Development

description: Using a model based on the work of Duarte and Eisenbach (2015), I stress test the Canadian banking system using publicly available data from 1996 to 2015. I find that the Canadian banking system is resilient to all but the most extreme event. This is because (i) strong macroprudential regulation in Canada improves the quality of assets, (ii) given a scenario of severe losses, banks retain a sufficient quantity of liquid assets that these could be used to meet short-term liabilities, and (iii) sufficient equity is available to absorb losses. However there remain some areas of concern. Using aggregate vulnerability (AV), I find that the Canadian banking system has become more vulnerable to a fire-sale episode since 2011 and this raises the possibility of future losses. I focus my study on Canadian assets, but these have grown much faster than the overall economy since 2004. The concentration of loans-to-households, including residential mortgages and consumer loans, should be of some concern to regulators. Indeed, recent government announcements and policy changes reflect an overall concern with the ability of households to repay their loans. In the fourth quarter of 2015, if the government decided to remove its explicit guarantee of mortgage insurance, losses due to a fire-sale event would have been 20 percent higher.
IL-10-dependent Effect of Chinese Medicine Abelmoschus manihot on Alleviating Intestinal Inflammation and Modulating Gut Microbiota
Creators: name: Li, Chengxi
name: Wang, Yu-meng
name: Zhang, Wen-Jing
name: Zhang, Shu
name: Li, Jian Ping
name: Zhou, Tong
name: Duan, Jin-ao
name: Guo, Jian ming
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 321401
subject: Basic pharmacology

description: Inflammatory bowel disease (IBD) is a recurrent disease associated with a potential risk of colorectal cancer. Abelmoschus manihot (AM), a Chinese herbal medicine, is known to alleviate IBD. However, its mechanism of action requires further clarification.Here, we focused on the role of IL-10 and the gut microbiota in the mechanism of action of AM. The effects of AM on intestinal inflammation, mucus production, and gut microbes were evaluated in dextran sodium sulfate (DSS)-induced acute and chronic IBD models and in IL-10-deficient mice (IL-10 ?=?). AM exhibited protective effects on acute and chronic models of IBD in wild-type mice by restoring body weight and colon length, promoting IL-10 secretion, and decreasing TNF-α levels. Moreover, AM alleviated inflammatory infiltration, increased mucin 2 transcription, and increased the number of goblet cells in the colon. On the contrary, these effects were diminished in IL-10?=? mice, which implied that the effect of AM on intestinal inflammation is IL-10-dependent. A gut microbial sequencing analysis showed that gut microbial dysbiosis was modulated by AM intervention. The regulatory effects of AM on Eggerthellaceae, Sutterellaceae, Erysipelotrichaceae, Burkholderiaceae, Desulfovibrionaceae, a n d Enterococcaceae were dependent on IL-10. These results revealed that AM ameliorated IBD and modulated gut microbes by promoting IL-10 secretion, indicating that AM has the potential to improve IBD and that AM is IL-10-dependent.
A multisectoral analysis of growth prospects for Lesotho: SAM -multiplier decomposition and computable general equilibrium perspectives
Creators: name: Nganou, Jean-Pascal Nguessa
Publisher: name: American University
Year: 2023

description: This dissertation argues that a proper identification of the key sectors of growth with significant linkages to the rest of the economy can enhance the ability of policymakers to affect the outcomes of policy changes or external shocks. The research question answered is therefore, how and which sectors and economic agents would most likely be affected in the presence of some policy changes or external shocks. This is addressed subsequently by way of a social accounting matrix (SAM) multiplier model and a computable general equilibrium (CGE) model. In a departure from conventional practice which consists to borrow from the handful of empirical literature, this study offers the estimation of key parameters (Armington, income elasticities, and Frisch parameters) for use in the Lesotho CGE model. Taking account of the poor quality and dearth of data, this research utilizes generalized maximum entropy (GME) techniques to estimate Armington elasticities. Moreover, as factors market-clearing conditions, the Lesotho CGE model combines both a Keynesian closure (fixed wages for low skilled and unskilled labor) and a neoclassical closure (fixed employment of skilled and sector specific fixed capital). Our finding indicates that Textiles, Private services, Agriculture, Other Manufacturing, Tourism, Real Estate, Transport and Communication, and Financial services are potential candidates for the prospects of growth. A viable policy advice would be to exploit, for example, the linkages between Agriculture and, say, Textiles, by improving the productivity in Agriculture. Investing in skills and other infrastructure is also recommended. Finally, a diversification of products in Textiles is also required in order for Lesotho to get full benefit of the U.S. African Growth Opportunities Act (AGOA).
Neolarra penicula Shanks 1978
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: Neolarra penicula Shanks, 1978
[Holotype: UCDC; ♀ Big Bear Lake, San Bernardino Co., California, USA: August 24, 1957]
Neolarra penicula occurs from Wyoming, USA to BCS, Mexico. Nonetheless, this species has limited records. It has been recorded only once within the BCP in La Giganta Ranges in 1994. The specimen is vouchered at the INHS (GBIF 2023). See fig. 141.
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 214, DOI: 10.11646/zootaxa.5522.1.1, http://zenodo.org/record/13920532
The elemental abundances in the intracluster medium as observed with XMM-Newton
Creators: name: Tamura, T.
name: Kaastra, J. S.
name: Herder, J. W. A.
name: Bleeker, J. A. M.
name: Peterson, J. R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: XMM-Newton observations of 19 galaxy clusters are used to measure the elemental abundances and their spatial distributions in the intracluster medium. The sample mainly consists of X-ray bright and relaxed clusters with a cD galaxy. Along with detailed Si, S and Fe radial abundance distributions within 300-700 kpc in radius, the O abundances are accurately derived in the central region of the clusters. The Fe abundance maxima towards the cluster center, possibly due to the metals from the cD galaxy,are spatially resolved. The Si and S abundances also exhibit central increases in general, resulting in uniform Fe-Si-S ratios within the cluster. In contrast, the O abundances are in general uniform over the cluster. The mean O to Fe ratio within the cluster core is sub-solar, while that of the cluster scale is larger than the solar ratio. These measurements indicate that most of the Fe-Si-S and O in the intracluster medium have different origins, presumably in supernovae Ia and II, respectively. The obtained Fe and O mass are also used to discuss the past star formation history in clusters.
description: Accepted for publication in Astronomy and Astrophysics
Hints for a fast precessing relativistic radio jet in LS I +61 303
Creators: name: Massi, M.
name: Ribo, M.
name: Paredes, J. M.
name: Garrington, S. T.
name: Peracaula, M.
name: Marti, J.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Here we discuss two consecutive MERLIN observations of the X-ray binary LS I +61 303. The first observation shows a double-sided jet extending up to about 200 AU on both sides of a central source. The jet shows a bent S-shaped structure similar to the one displayed by the well-known precessing jet of SS 433. The precession suggested in the first MERLIN image becomes evident in the second one, showing a one-sided bent jet significantly rotated with respect to the jet of the day before. We conclude that the derived precession of the relativistic (beta=0.6) jet explains puzzling previous VLBI results. Moreover, the fact that the precession is fast could be the explanation of the never understood short term (days) variability of the associated gamma-ray source 2CG 135+01 / 3EG J0241+6103.
description: 4 pages, 3 figures, LaTeX, uses aa.cls. Accepted for publication in A&A Letters
A composite massless vector boson
Creators: name: Afferrante, Vincenzo
name: Maas, Axel
name: Törek, Pascal
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In a non-perturbative gauge-invariant formulation of grand-unified theories all low energy vector states need to be composite with respect to the high-scale gauge group, including the photon. We investigate this by using lattice methods to spectroscopically analyze the vector channel in a toy grand-unified theory, an SU(2) adjoint Higgs model. Our results support indeed the existence of a massless composite vector particle.
description: 19 pages, 9 figures, v2: minor modifications, one figure added in the appendix
A Small-Open-Economy Analysis of Migration
Creators: name: Flug, Karnit
name: Hercowitz, Zvi
name: Levi, Anat
name: Flug, Karnit
name: Hercowitz, Zvi
name: Levi, Anat
Publisher: name: Unknown
Year: 1994
Subjects: Financial Economics
International Relations/Trade

description: The standard small-open-economy framework is extended to incorporate migration and job search. The model has a dynamic optimization setup with migration costs, where a simple mechanism of job search interacts with the migration decision. The balanced-growth population size is undetermined in this model. However, when conditioned on the current population size, the expected long-run population is finite. The developed framework is used to analyze, theoretically and quantitatively, the effects of an exogenous immigration influx of the magnitude of the ongoing influx to Israel from the C.I.S. The outcome of the model is a set of paths for endogenous emigration, domestic population size, and unemployment.
Matching scalar leptoquarks to the SMEFT at one loop
Creators: name: Gherardi, Valerio
name: Marzocca, David
name: Venturini, Elena
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we present the complete one-loop matching conditions, up to dimension-six operators of the Standard Model effective field theory, resulting by integrating out the two scalar leptoquarks $S_{1}$ and $S_{3}$. This allows a phenomenological study of low-energy constraints on this model at one-loop accuracy, which will be the focus of a subsequent work. Furthermore, it provides a rich comparison for functional and computational methods for one-loop matching, that are being developed. As a corollary result, we derive a complete set of dimension-six operators independent under integration by parts, but not under equations of motions, called Green's basis, as well as the complete reduction formulae from this set to the Warsaw basis.
description: 21 pages plus appendices. v:5 other corrections have been implemented
A multisectoral analysis of growth prospects for Lesotho: SAM -multiplier decomposition and computable general equilibrium perspectives
Creators: name: Nganou, Jean-Pascal Nguessa
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 38
subject: Economics

description: This dissertation argues that a proper identification of the key sectors of growth with significant linkages to the rest of the economy can enhance the ability of policymakers to affect the outcomes of policy changes or external shocks. The research question answered is therefore, how and which sectors and economic agents would most likely be affected in the presence of some policy changes or external shocks. This is addressed subsequently by way of a social accounting matrix (SAM) multiplier model and a computable general equilibrium (CGE) model. In a departure from conventional practice which consists to borrow from the handful of empirical literature, this study offers the estimation of key parameters (Armington, income elasticities, and Frisch parameters) for use in the Lesotho CGE model. Taking account of the poor quality and dearth of data, this research utilizes generalized maximum entropy (GME) techniques to estimate Armington elasticities. Moreover, as factors market-clearing conditions, the Lesotho CGE model combines both a Keynesian closure (fixed wages for low skilled and unskilled labor) and a neoclassical closure (fixed employment of skilled and sector specific fixed capital). Our finding indicates that Textiles, Private services, Agriculture, Other Manufacturing, Tourism, Real Estate, Transport and Communication, and Financial services are potential candidates for the prospects of growth. A viable policy advice would be to exploit, for example, the linkages between Agriculture and, say, Textiles, by improving the productivity in Agriculture. Investing in skills and other infrastructure is also recommended. Finally, a diversification of products in Textiles is also required in order for Lesotho to get full benefit of the U.S. African Growth Opportunities Act (AGOA).
Internal Extinction in Spiral Galaxies in the Near Infrared
Creators: name: Masters, Karen L.
name: Giovanelli, Riccardo
name: Haynes, Martha P.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In order to study the effects of internal extinction in spiral galaxies we search for correlations of near infrared (NIR) photometric parameters with inclination. We use data from the 2 Micron All-Sky Survey (2MASS) Extended Source Catalog (XSC) on 15,224 spiral galaxies for which we also have redshifts. For 3035 of the galaxies, I-band photometry is available which is included in the analysis. From the simple dependence of reddening on inclination we derive a lower limit to the difference in magnitude between the face-on and edge-on aspect of 0.9, 0.3 and 0.1 magnitudes in I (0.81 um), J (1.25 um) and H (1.65 um) bands. We find that the faintest isophotal radius reported in the XSC (at the 21st mag/arc sq level) is closer to the centers of the galaxies than other common isophotal measures (e.g. the 23.5 mag/arc sq radius in I-band), and argue that it should not be assumed to represent an outer isophote at which galaxies are transparent at all viewing angles. A simple linear extinction law (i.e. Delta M = gamma log(a/b)) is not adequate for the full range of disk inclinations and we adopt both a bi-linear and a quadratic law. A simple photometric model is used to explain the observed behavior. Internal extinction depends on galaxy luminosity. We show that for galaxies with a K total magnitude dimmer than -20, -20.7 and -20.9 the data indicates zero extinction in J, H and K respectively, while disk opacity increases monotonically with increasing disk luminosity.
description: Accepted for publication in AJ (July 2003). 28 pages, 13 figures. Revised version corrects some typos including an error in the reported luminosity dependence of the extinction correction
Potentials of a uniformly moving point charge in the Coulomb gauge
Creators: name: Hnizdo, V.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Classical Physics (physics.class-ph)
subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: The Coulomb-gauge vector potential of a uniformly moving point charge is obtained by calculating the gauge function for the transformation between the Lorenz and Coulomb gauges. The expression obtained for the difference between the vector potentials in the two gauges is shown to satisfy a Poisson equation to which the inhomogeneous wave equation for this quantity can be reduced. The right-hand side of the Poisson equation involves an important but easily overlooked delta-function term that arises from a second-order partial derivative of the Coulomb potential of a point charge.
description: To appear in European Journal of Physics. A delta-function identity for a second-order partial derivative of the Coulomb potential of a point charge is now used for the regularization of the rhs of the Poisson equation for the difference between the vector potentials in the Coulomb and Lorenz gauges