cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Limited Capacity in Project Selection: Competition Through Evidence Production
Creators: name: Boleslavsky, Raphael
name: Cotton, Christopher
name: Boleslavsky, Raphael
name: Cotton, Christopher
Publisher: name: Unknown
Year: 2015
Subjects: subject: Financial Economics
subject: Marketing
subject: FOS: Economics and business
subject: strategic search
subject: evidence production
subject: persuasion
subject: lobbying
subject: project selection
subject: Bayesian persuasion
subject: all-pay auction

description: An organization must decide which proposals to fund. In evaluating the proposals, the organization may rely on those applying for funding to produce evidence about the merits of their own proposals. We consider the role of a capacity constraint preventing the organization from funding all projects. Agents produce more (Blackwell) informative evidence about the merits of their proposals when there are capacity constraints. In a two agent model, we fully characterize the equilibrium under unlimited and limited capacity. Unless the prior strongly favors accepting both proposals, the funding organization is better off when its capacity is limited.
Eucera (Synhalonia) dorsata
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: Eucera (Synhalonia) dorsata (Timberlake, 1969) **
[Holotype: CASC; ♂ Riverside, Riverside Co., California, USA; April 14, 1927]
Eucera dorsata represents a new species record for Mexico. The BBPT collected two female specimens in the Chaparral region in May 2022 (MABC). See fig. 103.
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 169, DOI: 10.11646/zootaxa.5522.1.1, http://zenodo.org/record/13920532
Examining the possibility of chiral superconductivity in Sr$_2$RuO$_4$ and other compounds via applied supercurrent
Creators: name: Liu, Hao-Tian
name: Chen, Weipeng
name: Yin, Jia-Xin
name: Liu, Cai
name: Huang, Wen
Publisher: name: arXiv
Year: 2023
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: One approach to probe the still controversial superconductivity in Sr$_2$RuO$_4$ is to apply external perturbations that break the underlying tetragonal crystalline symmetry. Chiral $p_x+ip_y$ and $d_{xz}+id_{yz}$ states respond to such perturbations in ways that may help to distinguish them from other superconducting pairings. However, past experimental efforts along this line, using uniaxial strains and magnetic fields parallel to the RuO$_2$ plane, have not been able to reach an unambiguous conclusion. In this study, we propose to further examine the possibility of chiral superconducting order in Sr$_2$RuO$_4$ using an alternative tetragonal-symmetry-breaking perturbation -- in-plane supercurrent. We study the superconducting phase diagram as a function of both temperature and the applied supercurrent. Supercurrent generically splits the transition of the two chiral order parameter components, and we show that the splitting can give rise to visible specific heat anomalies. Furthermore, supercurrent parallel and anti-parallel to the unidirectional propagation of the chiral edge modes impact the edge states in different manner. This difference manifests in the tunneling spectrum, thereby providing an additional means to probe the chirality even when the related spontaneous edge current is vanishingly small. Finally, we discuss the distinction of supercurrent responses in non-chiral time-reversal-symmetry-breaking superconducting states. Our proposal can be applied to other candidate chiral superconductors.
description: 7 pages, 7 figures
Hamiltonian Simulation Algorithms for Near-Term Quantum Hardware
Creators: name: Clinton, Laura
name: Bausch, Johannes
name: Cubitt, Toby
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The quantum circuit model is the de-facto way of designing quantum algorithms. Yet any level of abstraction away from the underlying hardware incurs overhead. In the era of near-term, noisy, intermediate-scale quantum (NISQ) hardware with severely restricted resources, this overhead may be unjustifiable. In this work, we develop quantum algorithms for Hamiltonian simulation "one level below" the circuit model, exploiting the underlying control over qubit interactions available in principle in most quantum hardware implementations. We then analyse the impact of these techniques under the standard error model where errors occur per gate, and an error model with a constant error rate per unit time. To quantify the benefits of this approach, we apply it to a canonical example: time-dynamics simulation of the 2D spin Fermi-Hubbard model. We derive analytic circuit identities for efficiently synthesising multi-qubit evolutions from two-qubit interactions. Combined with new error bounds for Trotter product formulas tailored to the non-asymptotic regime and a careful analysis of error propagation under the aforementioned per-gate and per-time error models, we improve upon the previous best methods for Hamiltonian simulation by multiple orders of magnitude. By our calculations, for a 5$\mathbf\times$5 Fermi-Hubbard lattice we reduce the circuit depth from 800,160 to 1460 in the per-gate error model, or the circuit-depth-equivalent to 440 in the per-time error model. This brings Hamiltonian simulation, previously beyond reach of current hardware for non-trivial examples, significantly closer to being feasible in the NISQ era.
description: 63 pages, 21 figures, 3 tables. v2 includes full analysis of algorithm performance under second error model, and new numerical calculations of Trotter error bounds alongside previous analytic bounds v3 is final version
*Multivariate optimizing up -and -down design
Creators: name: Al-Shara, Nawar Marwan
Publisher: name: American University
Year: 2023

description: A Bivariate Optimizing Up-and-Down design for selecting the drug combination with maximum success probability is presented. We assume success is a unimodal function of dose, i.e., too little dose or too much dose both lead to failure. This design is motivated by a stochastic approximation procedure that was developed to work with continuous response and dependent variables. The stochastic approximation procedure is modified to work more efficiently with binary random variables and a finite number of treatment combinations. The procedure is shown to cluster treatments around the treatment that has maximum success probability. We use the mode as an estimator of the best dose and we show the marginal performance of the empirical modes. We show methods of identifying the best dose combination.
HOW BANKS CAN INVEST IN SUSTAINABILITY ( IN THE CASE OF AFRICA )
Creators: name: DARKO, EVANS
Publisher: name: Zenodo
Year: 2024

description: Experts have asserted that ecological sustainability is the biggest global challenge and that there is a need to collectively stop human-made devastation to nature and come forward to make a sustainable environmental policy in order to avoid some of these unfortunate climate effects. In e-commerce perspective, green banking can enhance the environmental sustainability by ensuring that online banking and e-banking by following the 3D approach- De-materialization, De-carbonization, and De-mobilization in the daily activities of the bank (Hossen et al., 2014).
Competing for Attention
Creators: name: Cotton, Christopher
name: Cotton, Christopher
Publisher: name: Unknown
Year: 2015
Subjects: subject: Financial Economics
subject: All-pay auction
subject: contest
subject: handicapped contest
subject: political access
subject: lobbying

description: We develop a model of lobbying in which a time and resource constrained policymaker first chooses which policy proposals to learn about, before choosing which to implement. The policymaker reviews the proposals of the interest groups who provide the highest contributions. We study how policy outcomes and contributions depend on policymaker constraints and the design of the “Contest for Attention.” Among other results, awarding attention to the highest contributors generally guarantees the first best policy outcome. It can also lead to the highest possible contributions, suggesting that a policymaker may not need to sacrifice policy in order to maximize contributions.
Patterns of International Capital Flows and Productivity Growth: New Evidence
Creators: name: MacDonald, Margaux
name: MacDonald, Margaux
Publisher: name: Unknown
Year: 2015
Subjects: subject: Demand and Price Analysis
subject: Financial Economics
subject: Gross capital flows
subject: Net capital flows
subject: Allocation puzzle
subject: Productivity growth

description: Recent evidence from developing and emerging economies shows a negative correlation between growth and net capital inflows, a contradiction to neoclassical growth theory. I provide updated and disaggregated evidence on the origins of this puzzle. An analysis of the components of capital flows and of gross portfolio positions shows that foreign direct investment is directed towards countries with the highest growth rates, but that portfolio investment outflows exceed these inflows. Liberalized capital accounts further exacerbate this pattern. My results suggest a desire for international portfolio diversification in liquid assets by fast growing countries lies at the heart of the puzzle.
*Multivariate optimizing up -and -down design
Creators: name: Al-Shara, Nawar Marwan
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 49
subject: Mathematical sciences
classificationCode: 4905
subject: Statistics
subject: FOS: Mathematics

description: A Bivariate Optimizing Up-and-Down design for selecting the drug combination with maximum success probability is presented. We assume success is a unimodal function of dose, i.e., too little dose or too much dose both lead to failure. This design is motivated by a stochastic approximation procedure that was developed to work with continuous response and dependent variables. The stochastic approximation procedure is modified to work more efficiently with binary random variables and a finite number of treatment combinations. The procedure is shown to cluster treatments around the treatment that has maximum success probability. We use the mode as an estimator of the best dose and we show the marginal performance of the empirical modes. We show methods of identifying the best dose combination.
Eucera (Synhalonia) amsinckiae
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: Eucera (Synhalonia) amsinckiae (Timberlake, 1969)
[Holotype: CASC; ♀ Riverside, California, USA; March 10, 1933]
This species occurs almost exclusively in the CFP and specializes on pollen from plants in the genus Amsinckia Lehm. (Fowler 2020). Within BC, it has only been recorded near El Rosario in the Succulent Coastal Sage in 1960 (2 ♂, 1 ♀) (Timberlake 1969). See fig. 102.
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 168, DOI: 10.11646/zootaxa.5522.1.1, http://zenodo.org/record/13920532
The possible role of a threonine residue in a highly conserved sequence of phosphoenolpyruvate carboxylase
Creators: name: Gembeh, Shirley Victoria
Publisher: name: American University
Year: 2023

description: Phosphoenolpyruvate carboxylase (PEPCase) is an allosteric enzyme involved in regulating the flow of carbon into the tricarboxylic acid (TCA) cycle for some organisms. It has been observed previously that a mutation in the amino acid sequence at position 188 of the wild-type enzyme in which threonine is changed to isoleucine results in a loss of its activation by fructose 1,6-bis phosphate (FBP). Threonine 188 is a highly conserved amino acid residue among a series of PEPCases, but any connection to FBP-mediated activation is brought into question by the fact that the activity of many of them is not regulated by FBP. The objective of the research reported here is to obtain more information about the role this amino acid plays in allosteric regulation of the FBP responsive enzyme. To do this, site-directed mutagenesis has been done resulting in the following substitutions for threonine at position 188: isoleucine (T188I), tryptophan (T188W), cysteine (T188C), lysine (T188K) and serine (T188S). This study focuses on the partial characterization of the serine mutant T188S. Isoelectric focusing showed that the T188S mutant enzyme has the same pI as the wild-type. Similar experiments with the other mutants showed that only the T188K, which is catalytically inactive, has a different pI. Initial kinetic analyses of the T188S mutant shows that it is allosterically activated by both acetyl coenzyme A and FBP, but, unlike the wild-type enzyme, activation by these two regulators is not synergistic. Analyses of the partially purified mutant enzyme in sucrose gradients in the absence of regulators, and in the presence of aspartate, or complete reaction mixture minus added bicarbonate, was done to determine the aggregation state of the enzyme. It appears that the mutant enzyme T188S showed the same sedimentation pattern as the wild-type enzyme. From this experiments it is inferred that the enzyme is dimeric in the absence of the regulators and tetrameric in the presence of 5 mM aspartate. It appears that the regulation of the T188S mutant enzyme is different from the wild-type but that both show similar physicochemical properties.
International Capital Market Frictions and Spillovers from Quantitative Easing
Creators: name: MacDonald, Margaux
name: MacDonald, Margaux
Publisher: name: Unknown
Year: 2018
Subjects: subject: Financial Economics
subject: emerging markets
subject: unconventional monetary policy
subject: spillovers
subject: capital market frictions

description: This paper analyzes the impact of large-scale, unconventional asset purchases by advanced country central banks on emerging market economies (EMEs) from 2008 to 2014. I show that there was substantial heterogeneity in the way these purchases affected EME currency, equity, and long-term sovereign bond markets. Drawing on the gravity-in-international-finance literature, I show that the degree of capital market frictions between EMEs and advanced countries is significant in explaining the observed heterogeneity in how these asset prices were affected. This result is robust to considerations of domestic monetary policy, exchange rate regime, and capital control policies in EMEs. Furthermore, I show that the size and direction of asset price movements in EMEs depended both on the type of assets purchased and on whether it was the U.S. Federal Reserve or other advanced country central banks engaging in the purchases.
The possible role of a threonine residue in a highly conserved sequence of phosphoenolpyruvate carboxylase
Creators: name: Gembeh, Shirley Victoria
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 34
subject: Chemical sciences
subject: FOS: Chemical sciences
classificationCode: 3405
subject: Organic chemistry

description: Phosphoenolpyruvate carboxylase (PEPCase) is an allosteric enzyme involved in regulating the flow of carbon into the tricarboxylic acid (TCA) cycle for some organisms. It has been observed previously that a mutation in the amino acid sequence at position 188 of the wild-type enzyme in which threonine is changed to isoleucine results in a loss of its activation by fructose 1,6-bis phosphate (FBP). Threonine 188 is a highly conserved amino acid residue among a series of PEPCases, but any connection to FBP-mediated activation is brought into question by the fact that the activity of many of them is not regulated by FBP. The objective of the research reported here is to obtain more information about the role this amino acid plays in allosteric regulation of the FBP responsive enzyme. To do this, site-directed mutagenesis has been done resulting in the following substitutions for threonine at position 188: isoleucine (T188I), tryptophan (T188W), cysteine (T188C), lysine (T188K) and serine (T188S). This study focuses on the partial characterization of the serine mutant T188S. Isoelectric focusing showed that the T188S mutant enzyme has the same pI as the wild-type. Similar experiments with the other mutants showed that only the T188K, which is catalytically inactive, has a different pI. Initial kinetic analyses of the T188S mutant shows that it is allosterically activated by both acetyl coenzyme A and FBP, but, unlike the wild-type enzyme, activation by these two regulators is not synergistic. Analyses of the partially purified mutant enzyme in sucrose gradients in the absence of regulators, and in the presence of aspartate, or complete reaction mixture minus added bicarbonate, was done to determine the aggregation state of the enzyme. It appears that the mutant enzyme T188S showed the same sedimentation pattern as the wild-type enzyme. From this experiments it is inferred that the enzyme is dimeric in the absence of the regulators and tetrameric in the presence of 5 mM aspartate. It appears that the regulation of the T188S mutant enzyme is different from the wild-type but that both show similar physicochemical properties.
Demonstrations and Price Competition in New Product Release
Creators: name: Boleslavsky, Raphael
name: Cotton, Christopher
name: Gurnani, Haresh
name: Boleslavsky, Raphael
name: Cotton, Christopher
name: Gurnani, Haresh
Publisher: name: Unknown
Year: 2015
Subjects: subject: Financial Economics
subject: Marketing
subject: FOS: Economics and business
subject: Judo economics
subject: marketing strategy
subject: product demonstrations
subject: money back guarantees
subject: return policies

description: We incorporate product demonstrations into a game theoretic model of firm price competition. Demonstrations may include product samples, trials, return policies, reviews, or any other means by which a firm allows consumers to learn about their value for a new product. In our model, demonstrations help individual consumers learn whether they prefer an innovation over an established product. The innovative firm controls demonstration informativeness. When prices can respond to demonstration policies, the firm prefers to provide maximumly informative demonstrations, which optimally segment the market, dampen subsequent price competition, and maximize profits. In contrast, when prices are less flexible, the firm prefers only partially informative demonstrations, designed to maximize its market share at prevailing prices. Such a strategy can generate the monopoly profit for the innovative firm. We contrast the strategic role of demonstrations in our framework with the strategic role of capacity limits in models of judo economics (e.g. Gelman and Salop 1983), which also allow firms to divide a market and reduce competition.
Implications of the electron-phonon coupling in CuPb$_9$(PO$_4$)$_6$O for superconductivity: an \textit{ab initio} study
Creators: name: Paudyal, Hari
name: Flatté, Michael E.
name: Paudyal, Durga
Publisher: name: arXiv
Year: 2023
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report $ab~initio$ calculations of the electronic and vibrational properties in CuPb$_9$(PO$_4$)$_6$O, including the electron-phonon coupling strength via strong-coupling Migdal-Eliashberg theory. We verify the presence of appealing flat electronic bands near the Fermi level, a strong hybridization between the Cu $3d$ and O $2p$ states, and soft low-energy phonons, which can suggest high-temperature superconducting behavior. However, the electron-phonon coupling strength appears insufficient to overcome the Coulomb repulsion between an electron pair and thus does does not support high-temperature superconductivity in CuPb$_9$(PO$_4$)$_6$O via the conventional electron-phonon Migdal-Eliashberg mechanism. Even neglecting Coulomb repulsion of the electron pair we find this electron-phonon coupling suggests a superconducting transition temperature less than 2~K.
description: 5 pages and 3 figures
Disorder and fluctuations in nonlinear excitations in DNA
Creators: name: Cuenda, Sara
name: Sanchez, Angel
Publisher: name: arXiv
Year: 2004
Subjects: subject: Biomolecules (q-bio.BM)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mathematical Physics (math-ph)
subject: Pattern Formation and Solitons (nlin.PS)
subject: Genomics (q-bio.GN)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: We study the effects of the sequence on the propagation of nonlinear excitations in simple models of DNA, and how those effects are modified by noise. Starting from previous results on soliton dynamics on lattices defined by aperiodic potentials, [F. Dom\'ınguez-Adame {\em et al.}, Phys. Rev. E {\bf 52}, 2183 (1995)], we analyze the behavior of lattices built from real DNA sequences obtained from human genome data. We confirm the existence of threshold forces, already found in Fibonacci sequences, and of stop positions highly dependent on the specific sequence. Another relevant conclusion is that the effective potential, a collective coordinate formalism introduced by Salerno and Kivshar [Phys. Lett. A {\bf 193}, 263 (1994)] is a useful tool to identify key regions that control the behaviour of a larger sequence. We then study how the fluctuations can assist the propagation process by helping the excitations to escape the stop positions. Our conclusions point out to improvements of the model which look promising to describe mechanical denaturation of DNA. Finally, we also consider how randomly distributed energy focus on the chain as a function of the sequence.
description: 14 pages, final version, accepted in Fluctuation and Noise Letters, scheduled to apper in vol. 4, issue 3 (2004)
Additional file 1 of A cross-sectional survey examining motivation and beliefs to participating in a web-based prospective cohort study on nutrition and health among individuals with a low socioeconomic status
Creators: name: Mélina Côté
name: Harrison, Stéphanie
name: Lapointe, Annie
name: Laramée, Catherine
name: Desroches, Sophie
name: Lemieux, Simone
name: Lamarche, Benoît
name: Bélanger-Gravel, Ariane
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1: Supplementary File 1. The TPB Survey Questionnaire.
Eucera (Synhalonia) actuosa BCP
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: Eucera (Synhalonia) actuosa (Cresson, 1878) *
[ANSP; ♀ California, USA]
Eucera actuosa is a newly documented species for the BCP. The oldest known record is based on a previously undetermined specimen at SDNHM that was collected in the Baja California Mountains in 1988. Additionally, the BBPT collected this species in various localities of the Succulent Coastal Matorral and Central Desert in March 2021 (2 ♀) and the Chaparral in May 2022 (1 ♀). Voucher specimens are in MABC. See fig. 102.
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 168, DOI: 10.11646/zootaxa.5522.1.1, http://zenodo.org/record/13920532
Spectral Irradiance Calibration in the Infrared. XIV: the Absolute Calibration of 2MASS
Creators: name: Cohen, Martin
name: Wheaton, Wm. A.
name: Megeath, S. T.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Element-by-element we have combined the optical components in the three 2MASS cameras, and incorporated detector quantum efficiency curves and site-specific atmospheric transmissions, to create three relative spectral response curves (RSRs). We provide absolute 2MASS attributes associated with "zero magnitude" in the JHKs bands so that these RSRs may be used for synthetic photometry. The RSRs tie 2MASS to the Cohen-Walker-Witteborn framework of absolute photometry and spectra for the purpose of using 2MASS data to support the development of absolute calibrators for IRAC and pairwise cross-calibrators between all three SIRTF instruments. We examine the robustness of these RSRs to changes in water vapor within a night. We compare the observed 2MASS magnitudes of 33 stars (converted from the precision optical calibrators of Landolt and Carter-Meadows into absolute infrared calibrators from 1.2-35 um with our predictions, thereby deriving 2MASS "zero point offsets" from the ensemble. These offsets are the final ingredients essential to merge 2MASS $JHK_{s}$ data with other absolutely calibrated bands and stellar spectra, and to support the creation of faint calibration stars for SIRTF.
description: 25 pages, Latex, AASTEX5 macros. Revised Table 2 includes updated estimates of some uncertainties
Informational lobbying and agenda distortion
Creators: name: Cotton, Christopher
name: Dellis, Arnaud
name: Cotton, Christopher
name: Dellis, Arnaud
Publisher: name: Unknown
Year: 2015
Subjects: subject: Financial Economics
subject: Marketing
subject: FOS: Economics and business
subject: Informational lobbying
subject: agenda setting
subject: information collection
subject: persuasion

description: We challenge the prevailing view that pure informational lobbying (in the absence of political contributions and evidence distortion or withholding) leads to better informed policymaking. In the absence of lobbying, the policymaker may prioritize the more-important or ex ante morepromising issues. Recognizing this, interest groups involved with other issues can have an incentive to lobby, in order to change the issues that the policymaker learns about and prioritize. We identify two channels through which informational lobbying is detrimental, in the sense of leading to worse policy and possibly less-informed policy choices. First, it can cause the policymaker to give priority to less important issues with active lobbies, rather than the issues that are more-important to his constituents. Second, lobbying by interest groups on issues with ex ante less-promising reforms may crowd out information collection by the policymaker on issues with more-promising reforms. The analysis fully characterizes the set of detrimental lobbying equilibria under two alternative types of issue asymmetry.
El proceso de estandarización de las prácticas forenses como factor determinante en la calidad de los resultados periciales. El rol de la Organización de los Comités por Áreas Cientifica para las Ciencias Forenses (OSAC)
Creators: name: Accorinti, Juan Pablo
Publisher: name: Zenodo
Year: 2022
Subjects: protocolos
estándares
ciencias forenses
gestión de calidad
criminalística

description: El paradigma clásico de las Ciencias Forenses ha sufrido cuestionamientos a lo largo de las últimas tres décadas, principalmente en los Estados Unidos. Diversos sucesos trascendentales acontecidos desde finales de los ‘80 desencadenaron un proceso de cambios y mejoras en las distintas áreas forenses, así como en la revisión de los fundamentos científicos de las disciplinas forenses. Una de las debilidades expuestas fue la carencia de criterios unificados en los diversos procesos periciales. Para resolver esta cuestión, Estados Unidos dispuso la creación de la Organización de Comités por Área Científica para las Ciencias Forenses (OSAC) que concentra y articula las organizaciones profesionales forenses, con otras áreas dedicadas exclusivamente al desarrollo de normas y estándares técnico-científicos, destinados a diversos campos de esta actividad profesional. Así, desde 2014 se ha desarrollado un cuerpo de estándares que ofrecen lineamientos básicos en una gran diversidad de actividades periciales. La carencia de criterios unánimes resulta una problemática global de las Ciencias Forenses, que ha motivado a otros paísescomo Australia, Reino Unido, China y a la Comunidad Europea, a adoptar medidas en direcciones similares. La Ciencia Forense en la República Argentina no se encuentra aislada de la realidad global, por lo que una adecuada capitalización de estas experiencias posibilitará materializar un diagnóstico preciso y delinear un proyecto serio y sostenible de fortalecimiento de la actividad.
Analysis of compositional data using Dirichlet covariate models
Creators: name: Hijazi, Rafiq Hamed
Publisher: name: American University
Year: 2023

description: Compositional data are non-negative proportions with unit-sum. These types of data arise whenever we classify objects into disjoint categories and record their resulting relative frequencies. Under the unit-sum constraint, the elementary concepts of covariance and correlation are misleading. Therefore, compositional data are rarely analyzed with the usual multivariate statistical methods. Aitchison (1986) introduced the logratio analysis to model compositional data. Campbell and Mosimann (1987) suggested the Dirichlet Covariate Model as a null model for such data. The purpose of this thesis is to investigate the Dirichlet Covariate Model and compare it to the logratio analysis. The estimation methods are introduced and the sampling distributions of the maximum likelihood estimates are investigated. Measures of total variability and goodness of fit are proposed to assess the adequacy of the suggested models in analyzing compositional data.
Variationally Scheduled Quantum Simulation
Creators: name: Matsuura, Shunji
name: Buck, Samantha
name: Senicourt, Valentin
name: Zaribafiyan, Arman
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Eigenstate preparation is ubiquitous in quantum computing, and a standard approach for generating the lowest-energy states of a given system is by employing adiabatic state preparation (ASP). In the present work, we investigate a variational method for determining the optimal scheduling procedure within the context of ASP. In the absence of quantum error correction, running a quantum device for any meaningful amount of time causes a system to become susceptible to the loss of relevant information. Therefore, if accurate quantum states are to be successfully generated, it is crucial to find techniques that shorten the time of individual runs during iterations of annealing. We demonstrate our variational method toward this end by investigating the hydrogen and P4 molecules, as well as the Ising model problem on a two-dimensional triangular lattice. In both cases, the time required for one iteration to produce accurate results is reduced by several orders of magnitude in comparison to what is achievable via standard ASP. As a result, the required quantum coherence time to perform such a calculation on a quantum device becomes much less stringent with the implementation of this algorithm. In addition, our variational method is found to exhibit resilience against control errors, which are commonly encountered within the realm of quantum computing.
description: Reference added
Firm Dynamics in Retail Trade: The Response of Canadian Retailers to Exchange Rate Shocks
Creators: name: Baggs, Jen
name: Beaulieu, Eugene
name: Fung, Loretta
name: Lapham, Beverly
name: Baggs, Jen
name: Beaulieu, Eugene
name: Fung, Loretta
name: Lapham, Beverly
Publisher: name: Unknown
Year: 2015
Subjects: subject: Financial Economics
subject: Firm Dynamics
subject: Retail Trade
subject: Exchange Rates
subject: Cross-border Shopping

description: We use comprehensive rm-level data to estimate the responses of heterogeneous Canadian retail firms to real exchange rate movements. Our analysis focuses on a period characterized by large fuctuations in the Canadian dollar, providing an opportunity to quantify both intensive and extensive margin responses in retail industries to real exchange rate shocks and to examine how those responses differ across firms, locations, and sub-industries. Our results indicate that a real Canadian currency appre- ciation significantly reduces a retailer's sales, employment, and prots. The strength of this negative effect is decreasing in the distance of a retailer from the US-Canada border. We do not find evidence of a strong relationship between real exchange rate movements and the number of operating firms nor the probability of rm survival. These findings are consistent with the view that a real Canadian dollar appreciation increases cross-border shopping by Canadians, resulting in a negative demand shock for Canadian retailers, and the dominant response by firms to such a shock is through the intensive margin.
Analysis of compositional data using Dirichlet covariate models
Creators: name: Hijazi, Rafiq Hamed
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 49
subject: Mathematical sciences
classificationCode: 4905
subject: Statistics
subject: FOS: Mathematics

description: Compositional data are non-negative proportions with unit-sum. These types of data arise whenever we classify objects into disjoint categories and record their resulting relative frequencies. Under the unit-sum constraint, the elementary concepts of covariance and correlation are misleading. Therefore, compositional data are rarely analyzed with the usual multivariate statistical methods. Aitchison (1986) introduced the logratio analysis to model compositional data. Campbell and Mosimann (1987) suggested the Dirichlet Covariate Model as a null model for such data. The purpose of this thesis is to investigate the Dirichlet Covariate Model and compare it to the logratio analysis. The estimation methods are introduced and the sampling distributions of the maximum likelihood estimates are investigated. Measures of total variability and goodness of fit are proposed to assess the adequacy of the suggested models in analyzing compositional data.
A group-theoretic approach to fast matrix multiplication
Creators: name: Cohn, Henry
name: Umans, Christopher
Publisher: name: arXiv
Year: 2003
Subjects: subject: Group Theory (math.GR)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: We develop a new, group-theoretic approach to bounding the exponent of matrix multiplication. There are two components to this approach: (1) identifying groups G that admit a certain type of embedding of matrix multiplication into the group algebra C[G], and (2) controlling the dimensions of the irreducible representations of such groups. We present machinery and examples to support (1), including a proof that certain families of groups of order n^(2 + o(1)) support n-by-n matrix multiplication, a necessary condition for the approach to yield exponent 2. Although we cannot yet completely achieve both (1) and (2), we hope that it may be possible, and we suggest potential routes to that result using the constructions in this paper.
description: 12 pages, 1 figure, only updates from previous version are page numbers and copyright information
Differing incentives of appointed and elected prosecutors and the relationship between prosecutor policy and votes in local elections
Creators: name: Rainville, Gerard Arthur
Publisher: name: American University
Year: 2023

description: Prosecutors in the United States may be either appointed or elected officials. They are also bureau chiefs of a public office. Most models of prosecutor behavior focus on the bureaucratic role of the prosecutor. The objective of this research is to present a model of prosecutor behavior that places the political objectives of prosecutors in the fore. This research reviews the historical development of the prosecutor's office in the United States and examines the previous theoretical and empirical research on prosecutor incentives. Multivariate statistical tests are employed to test hypotheses derived from a political model of prosecution using data from a nationwide sample of elected and appointed prosecutors. Several theorized relationships are tested empirically. First, it is hypothesized that elected prosecutors have a greater incentive (relative to appointed prosecutors) to report adopting office policies viewed as responsive to communities. Second, for those prosecutors that are elected, it is hypothesized that an appearance of greater responsiveness leads to greater political support of incumbent prosecutors, measured by votes in reelection efforts. Elected prosecutors were not consistently found to be more likely to report involvement in policies viewed as responsive to the public in the presented models. In a test limited to elected prosecutors, the appearance of greater responsiveness was linked to greater political support of incumbent prosecutors. This research reveals significant differences between appointed and elected prosecutors in their desire to appear responsive to communities and suggests that elections may serve as a viable mechanism to ensure responsiveness from the prosecutor's office.
Eucera (Synhalonia) edwardsii
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
Animalia
Arthropoda
Insecta
Hymenoptera
Apidae
Eucera
Eucera edwardsii

description: Eucera (Synhalonia) edwardsii (Cresson, 1878)
[Lectotype: ANSP; ♂ California, USA]
Eucera edwardsii is a species distributed throughout the western USA and northwestern Mexico. It has been reported in BC (Timberlake 1969; Ayala et al. 1996), and San Bernardino Valley, Sonora (Minckley & Radke 2021). As part of this study, the BBPT collected a female specimen in Guadalupe Valley during April 2022 (MABC). See fig. 103.
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 169, DOI: 10.11646/zootaxa.5522.1.1, http://zenodo.org/record/13920532
Determinanty i perspektywy prowadzenia działalności rolniczej w małych gospodarstwach rolnych z pozarolniczą działalnością gospodarczą
Determinants and Prospects of Conducting Agricultural Activities in Small Farms with Non-Agricultural Activities
Creators: name: Żmija, Katarzyna
name: Żmija, Katarzyna
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agribusiness
subject: Community/Rural/Urban Development
subject: Farm Management
subject: non-agricultural activities
subject: non-farm rural economy
subject: small farms
subject: agriculture
subject: działalność pozarolnicza
subject: pozarolnicza gospodarka wiejska
subject: małe gospodarstwa rolne
subject: rolnictwo

description: The aim of the study is to identify factors resulting from non-agricultural activities in small farms and to examine their impact on the agricultural production carried out in these farms. Understanding these processes will help the state develop a way to encourage these small farms to develop non-agricultural activities, which will provide them with an additional, and often primary, source of income. The results of the authors’ surveys conducted among farmers possessing small farms, conducting both agricultural and non-agricultural activities, are presented. The research results showed that in most cases, non-agricultural activities can allow farm resources to be used more efficiently. However, the nature of the impact of non-agricultural activities on agricultural activities depends on the type of activities, and on their level of connection with the agricultural holding. / Synopsis. Celem opracowania jest identyfikacja czynników wynikających z prowadzenia działalności pozarolniczej w małych gospodarstwach rolnych oraz zbadanie ich wpływu na prowadzoną w nich rolniczą działalność produkcyjną. Poznanie tych prawidłowości umożliwi świadome stymulowanie ze strony państwa małych gospodarstw w celu rozwijania działalności pozarolniczej, która zapewni im dodatkowe, a często wiodące źródło dochodów. Zaprezentowano wyniki własnych badań ankietowych przeprowadzonych wśród osób posiadających małe gospodarstwa rolne, prowadzących równocześnie działalność rolniczą i pozarolniczą. Wyniki badań wykazały, iż w większości przypadków prowadzona działalność pozarolnicza pozwala na bardziej efektywne wykorzystanie zasobów gospodarstwa rolnego dzięki możliwości zastosowania ich również na potrzeby prowadzenia działalności pozarolniczej. Charakter wpływu działalności pozarolniczej na działalność rolniczą zależy jednak w dużym stopniu od jej rodzaju i stopnia powiązania z gospodarstwem rolnym.
description: DOI: 10.22630/PRS.2018.18.2.61
WRFv3.7 Compilation Manual
Creators: name: Estrada, Pamela Iskra Mejía
Publisher: name: Zenodo
Year: 2016
Subjects: WRF
atmospheric-modelling
compiling
manual

description: The present manual aims at constituting a first approach for beginner users to the Weather Research and Forecasting Model. This constitutes one of the meso-scale Numerical Weather Prediction models used to analyse the physics behind and consequences of a meteorological event. The present manual is based on that originally published online by the National Center for Atmospheric Research (United States) and the easiness with which it can be read as well as the crucial order to execute its instructions have been kept, hence the high similarity between both documents. This resemblance should be considered only for comparing purposes as this document intends by no means to replace or disregard the original version.
description: PhD programme under which this document was developed was funded by the National Council of Science and Technology in Mexico, grant no. 490283
The Durability of Information, Market efficiency and the Size of Firms: Search with Repeated Transaction
Creators: name: Fishman, Arthur
name: Rob, Rafael
name: Fishman, Arthur
name: Rob, Rafael
Publisher: name: Unknown
Year: 1992
Subjects: subject: Financial Economics
subject: Marketing
subject: FOS: Economics and business

description: We consider a dynamic model of search where firms are heterogenous with respect to their unit costs of production. For an individual firm, these costs vary from period to period (as a consequence of idiosyncratic technology shocks, perhaps), but for the market as a whole the distribution of costs remains intact. Despite this constancy we show that both the price level as well as the efficiency of market outcomes depends on the variability of costs — at the individual—firm level. We also show how the history of cost realizations segments the set of firms into large and small ones. Hence, firms which are ex—ante identical end up having different size clientele, and different profitabilities. Finally, we show that steady—state equilibria are highly indeterminate.
Identification of pre-biotic molecules containing Peptide-like bond in a hot molecular core, G10.47+0.03
Creators: name: Gorai, Prasanta
name: Bhat, Bratati
name: Sil, Milan
name: Mondal, Suman K.
name: Ghosh, Rana
name: Chakrabarti, Sandip K.
name: Das, Ankan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: After hydrogen, oxygen, and carbon, nitrogen is one of the most chemically active species in the interstellar medium (ISM). Nitrogen bearing molecules have great importance as they are actively involved in the formation of biomolecules. Therefore, it is essential to look for nitrogen-bearing species in various astrophysical sources, specifically around high-mass star-forming regions where the evolutionary history is comparatively poorly understood. In this paper, we report the observation of three potential pre-biotic molecules, namely, isocyanic acid (HNCO), formamide (NH2CHO), and methyl isocyanate (CH3NCO), which contain peptide-like bonds (-NH-C(=O)-) in a hot molecular core, G10.47+0.03 (hereafter, G10). Along with the identification of these three complex nitrogen-bearing species, we speculate their spatial distribution in the source and discuss their possible formation pathways under such conditions. The rotational diagram method under the LTE condition has been employed to estimate the excitation temperature and the column density of the observed species. Markov Chain Monte Carlo method was used to obtain the best suited physical parameters of G10 as well as line properties of some species. We also determined the hydrogen column density and the optical depth for different continuum observed in various frequency ranges. Finally, based on these observational results, we have constructed a chemical model to explain the observational findings. We found that HNCO, NH2CHO, and CH3NCO are chemically linked with each other.
description: Published in the Astrophysical Journal