cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A case study of a professional development model linking arts -based teaching practices to classroom instruction
Creators: name: Mardirosian, Gail Humphries
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 39
subject: Education
classificationCode: 3901
subject: Curriculum and pedagogy
classificationCode: 3904
subject: Specialist studies in education

description: There is a paucity of research on the impact and transfer of arts-based training directly related to the instructional practices of teachers. This case study attempts to fill this research gap by examining the experiences of classroom teachers undergoing an arts-based professional development training program to discern if they can be adequately equipped, through sequential training experiences, to transfer their professional development training to classroom instruction. The study examines the impact of the training on teacher attitude, skills, and behavior during and after the training and assesses the level of transfer of the teaching pedagogy from the training to more sophisticated arts integration and the explicit use of arts-based mechanisms, techniques, and tools in the classroom. The methodology for training the teachers in arts-based strategies is based on the Imagination Quest ( IQ) teaching model, a model that specifically links arts-based pedagogy and cognitive learning theories to content teaming standards. Qualitative and quantitative data generated by the implementation of the training program at a middle school site in the metropolitan DC area throughout one academic year are used to analyze the efficacy of the model. The gauge of efficacy is based on the successes and failures of the subjects---as viewed from each subject's and the researcher/trainees perspectives---as they attempt to understand and integrate arts-based pedagogy into their regular classroom teaching; the transfer of learning from the training seminars and coaching and guided practices to the classroom; and student reactions to arts-based learning in the classroom. The impact of the cultural climate of the site was also explored within the context of arts-based teaching. The results of this study confirm the potential for this training program to generate teacher change in expertise and pedagogy, as it relates to arts-based instruction. Implications for this research for professional development trainers, classroom teachers, students, and researchers are presented.
A case study of a professional development model linking arts -based teaching practices to classroom instruction
Creators: name: Mardirosian, Gail Humphries
Publisher: name: American University
Year: 2023

description: There is a paucity of research on the impact and transfer of arts-based training directly related to the instructional practices of teachers. This case study attempts to fill this research gap by examining the experiences of classroom teachers undergoing an arts-based professional development training program to discern if they can be adequately equipped, through sequential training experiences, to transfer their professional development training to classroom instruction. The study examines the impact of the training on teacher attitude, skills, and behavior during and after the training and assesses the level of transfer of the teaching pedagogy from the training to more sophisticated arts integration and the explicit use of arts-based mechanisms, techniques, and tools in the classroom. The methodology for training the teachers in arts-based strategies is based on the Imagination Quest ( IQ) teaching model, a model that specifically links arts-based pedagogy and cognitive learning theories to content teaming standards. Qualitative and quantitative data generated by the implementation of the training program at a middle school site in the metropolitan DC area throughout one academic year are used to analyze the efficacy of the model. The gauge of efficacy is based on the successes and failures of the subjects---as viewed from each subject's and the researcher/trainees perspectives---as they attempt to understand and integrate arts-based pedagogy into their regular classroom teaching; the transfer of learning from the training seminars and coaching and guided practices to the classroom; and student reactions to arts-based learning in the classroom. The impact of the cultural climate of the site was also explored within the context of arts-based teaching. The results of this study confirm the potential for this training program to generate teacher change in expertise and pedagogy, as it relates to arts-based instruction. Implications for this research for professional development trainers, classroom teachers, students, and researchers are presented.
The static and dynamic welfare effects of Botswana's participation in Southern African regional and multilateral trade integration process: A computable general equilibrium analysis
Creators: name: Nyamadzabo, Taufila
Publisher: name: American University
Year: 2023

description: The objective of this dissertation is to measure the static and dynamic net welfare gains to Botswana from regional trade integration. This is done by calculating an equivalent variation for its participartion with other Southern African countries in the regional integration schemes of Southern African Customs Union (SACU) and Southern African Development Community (SADC). Measurement of the gains is made in static terms as well as by dynamic inter-temporal period using applied computable general equilibrium (CGE) methods. The question that this dissertation addresses is whether membership in a customs union with a larger trading partner to Botswana, such as South Africa, yields much net benefits to the country? Are there any targets for regional integration that results in Pareto improvement to welfare and does economic integration improve economic efficiency (in terms of maximum output per unit of input) as some firms lose monopoly or technological leadership in the region?; In ongoing debate, there are contrasting views about the welfare benefits of globalization. Some suggest that regionalism offers a middle ground. It is neither full globalization which entails free trade nor autarky. The costs and benefits of regional trade versus multilateral trade should be of interest to policy makers. Is it preferable for developing nations (like Botswana) to work through smaller free-trade areas (PTAs) or through the World Trade Organization (WTO)?; This is because even for Southern African (and Botswana in particular), household welfare as measured by Hicksian equivalent variation increases with the reduction and or complete elimination of tariffs between members regionally and multilaterally. Furthermore, measures that reduce terms of trade such as increasing price of imports reduce welfare, consumption, investment, factor inputs, exports and imports. Increasing price of exports, which is an improvement in the terms of trade, has the opposite effects of raising welfare as well as all the macroeconomic variables for the single-country, multi-country and dynamic models developed in this dissertation. I believe that the main contribution that this dissertation has made is formulating a single, multi-country static and dynamic CGE model for Botswana where none had been done before. Moreover, contrasting regional and multilateral integration effects is a useful area for analysis. These issues must be of interest to policy-makers in the region, especially in Botswana.
Interior perfect fluid scalar-tensor solution
Creators: name: Yazadjiev, Stoytcho S.
Publisher: name: arXiv
Year: 2003
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present a new exact perfect fluid interior solution for a particular scalar-tensor theory. The solution is regular everywhere and has a well defined boundary where the fluid pressure vanishes. The metric and the dilaton field match continuously the external solution.
description: 8 pages, 3 figures, LaTex
Multiple-relaxation-time discrete Boltzmann modeling of multicomponent mixture with nonequilibrium effects
Creators: name: Lin, Chuandong
name: Luo, Kai H.
name: Xu, Aiguo
name: Gan, Yanbiao
name: Lai, Huilin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: A multiple-relaxation-time discrete Boltzmann model (DBM) is proposed for multicomponent mixtures, where compressible, hydrodynamic, and thermodynamic nonequilibrium effects are taken into account. It allows the specific heat ratio and the Prandtl number to be adjustable, and is suitable for both low and high speed fluid flows. From the physical side, besides being consistent with the multicomponent Navier-Stokes equations, Fick's law and Stefan-Maxwell diffusion equation in the hydrodynamic limit, the DBM provides more kinetic information about the nonequilibrium effects. The physical capability of DBM to describe the nonequilibrium flows, beyond the Navier-Stokes representation, enables the study of the entropy production mechanism in complex flows, especially in multicomponent mixtures. Moreover, the current kinetic model is employed to investigate nonequilibrium behaviors of the compressible Kelvin-Helmholtz instability (KHI). It is found that, in the dynamic KHI process, the mixing degree and fluid flow are similar for cases with various thermal conductivity and initial temperature configurations. Physically, both heat conduction and temperature exert slight influences on the formation and evolution of the KHI.
The static and dynamic welfare effects of Botswana's participation in Southern African regional and multilateral trade integration process: A computable general equilibrium analysis
Creators: name: Nyamadzabo, Taufila
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 38
subject: Economics

description: The objective of this dissertation is to measure the static and dynamic net welfare gains to Botswana from regional trade integration. This is done by calculating an equivalent variation for its participartion with other Southern African countries in the regional integration schemes of Southern African Customs Union (SACU) and Southern African Development Community (SADC). Measurement of the gains is made in static terms as well as by dynamic inter-temporal period using applied computable general equilibrium (CGE) methods. The question that this dissertation addresses is whether membership in a customs union with a larger trading partner to Botswana, such as South Africa, yields much net benefits to the country? Are there any targets for regional integration that results in Pareto improvement to welfare and does economic integration improve economic efficiency (in terms of maximum output per unit of input) as some firms lose monopoly or technological leadership in the region?; In ongoing debate, there are contrasting views about the welfare benefits of globalization. Some suggest that regionalism offers a middle ground. It is neither full globalization which entails free trade nor autarky. The costs and benefits of regional trade versus multilateral trade should be of interest to policy makers. Is it preferable for developing nations (like Botswana) to work through smaller free-trade areas (PTAs) or through the World Trade Organization (WTO)?; This is because even for Southern African (and Botswana in particular), household welfare as measured by Hicksian equivalent variation increases with the reduction and or complete elimination of tariffs between members regionally and multilaterally. Furthermore, measures that reduce terms of trade such as increasing price of imports reduce welfare, consumption, investment, factor inputs, exports and imports. Increasing price of exports, which is an improvement in the terms of trade, has the opposite effects of raising welfare as well as all the macroeconomic variables for the single-country, multi-country and dynamic models developed in this dissertation. I believe that the main contribution that this dissertation has made is formulating a single, multi-country static and dynamic CGE model for Botswana where none had been done before. Moreover, contrasting regional and multilateral integration effects is a useful area for analysis. These issues must be of interest to policy-makers in the region, especially in Botswana.
Melissodes (Eumelissodes) robustior Cockerell 1915
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
Melissodes
Melissodes robustior

description: Melissodes (Eumelissodes) robustior Cockerell, 1915
[Holotype: USNM; ♀ Berkeley, Alameda Co., California, USA; August 9, 1915]
Melissodes robustior is found in western North America, including one BCP record from October 1972 from the Central Desert (GBIF 2023). See fig. 108.
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 175, DOI: 10.11646/zootaxa.5522.1.1, http://zenodo.org/record/13920532
Monetary and Fiscal Policies in a Heterogeneous-Agent Economy
Creators: name: Sun, Hongfei
name: Sun, Hongfei
Publisher: name: Unknown
Year: 2011
Subjects: subject: Demand and Price Analysis
subject: Financial Economics
subject: Competitive Search
subject: Distributional Effect
subject: Monetary and Fiscal Policies

description: I study the effects of long-run inflation and income taxation in an economy where households face uninsurable idiosyncratic risks. I construct a tractable competitive search framework that generates dispersion of prices, income and wealth. I ana- lytically characterize the stationary equilibrium and the policy effects on individual choices. Quantitative analysis finds that monetary and fiscal policies have distinctive effects on macro aggregates, such as output, savings, wealth dispersion, income and consumption inequalities. There can be a hump-shape relationship between welfare and the respective policies. Overall, welfare can be maximized by a deviation from the Friedman rule, paired with distortionary income taxation.
The generality of inflation in closed cosmological models with some quintessence potentials
Creators: name: Pavluchenko, S. A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have investigated the generality of inflation (the probability of inflation in other words) in closed FRW models for a wide class of quintessence potentials. It is shown that inflation is not suppressed for most of them and for a wide enough range of their parameters. It allows us to decide inflation is common enough even in the case of closed Universe.
description: 7 pages, 6 eps figures, to appear in PRD
New-New Trade Policy
Creators: name: Ciuriak, Dan
name: Lapham, Beverly
name: Wolfe, Robert
name: Collins-Williams
name: Curtis, John M.
name: Ciuriak, Dan
name: Lapham, Beverly
name: Wolfe, Robert
name: Collins-Williams
name: Curtis, John M.
Publisher: name: Unknown
Year: 2011
Subjects: Financial Economics

description: When national competitiveness is invoked as a policy objective, trade experts have learned to retort that countries don't trade, ¯rms do. This focus on the importance of the ¯rm in international trade is consistent with the most recent developments in trade theory, but policy needs to catch up. Recognizing the growing anomalies in observed trade patterns relative to traditional models of trade based on national comparative advantage, the \new trade theory" of the 1980s looked at industries not countries, leading Nobel prize-winner Paul Krugman, a pioneer in this literature, to suggest the need for a new trade policy. Recent work on what some call the \new-new trade theory" focuses on the trading behaviour of individual ¯rms, making a tight link between trade and productivity. In this paper we demonstrate how focusing on ¯rms should be the foundation for a new-new trade policy, one that creates exciting opportunities for trade and investment promotion strategies, along with the need for much more targeted consultation strategies. We also discuss the implications of the new-new theory for regulatory coordination, and on new ways to cooperate with interlocutors in developing countries on the evolution of 21st century trade policy.
A Monetary Theory with Non-Degenerate Distributions
Creators: name: Menzio, Guido
name: Shi, Shouyong
name: Sun, Hongfei
name: Menzio, Guido
name: Shi, Shouyong
name: Sun, Hongfei
Publisher: name: Unknown
Year: 2011
Subjects: subject: Financial Economics
subject: Money
subject: Distribution
subject: Search
subject: Lattice-Theoretic

description: Dispersion of money balances among individuals is the basis for a range of policies but it has been abstracted from in monetary theory for tractability reasons. In this paper, we fill in this gap by constructing a tractable search model of money with a non-degenerate distribution of money holdings. We assume search to be directed in the sense that buyers know the terms of trade before visiting particular sellers. Directed search makes the monetary steady state block recursive in the sense that individuals’ policy functions, value functions and the market tightness function are all independent of the distribution of individuals over money balances, although the distribution affects the aggregate activity by itself. Block recursivity enables us to characterize the equilibrium analytically. By adapting lattice-theoretic techniques, we characterize individuals’ policy and value functions, and show that these functions satisfy the standard conditions of optimization. We prove that a unique monetary steady state exists. Moreover, we provide conditions under which the steady-state distribution of buyers over money balances is non-degenerate and analyze the properties of this distribution.
Bayesian model averaging for nuclear symmetry energy from effective proton-neutron chemical potential difference of neutron-rich nuclei
Creators: name: Qiu, Mengying
name: Cai, Bao-Jun
name: Chen, Lie-Wen
name: Yuan, Cen-Xi
name: Zhang, Zhen
Publisher: name: arXiv
Year: 2023
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The data-driven Bayesian model averaging is a rigorous statistical approach to combining multiple models for a unified prediction. Compared with the individual model, it provides more reliable information, especially for problems involving apparent model dependence. In this work, within both the non-relativistic Skyrme energy density functional and the nonlinear relativistic mean field model, the effective proton-neutron chemical potential difference $Δμ^*_{\rm{pn}}$ of neutron-rich nuclei is found to be strongly sensitive to the symmetry energy $E_{\rm{sym}}(ρ)$ around $2ρ_0/3$, with $ρ_0$ being the nuclear saturation density. Given discrepancies on the $Δμ^*_{\rm{pn}}$-$E_{\rm{sym}}(2ρ_0/3)$ correlations between the two models, we carry out a Bayesian model averaging analysis based on Gaussian process emulators to extract the symmetry energy around $2ρ_0/3$ from the measured $Δμ^*_{\rm{pn}}$ of 5 doubly magic nuclei $^{48}$Ca, $^{68}$Ni, $^{88}$Sr, $^{132}$Sn and $^{208}$Pb. Specifically, the $E_{\mathrm{sym}}(2ρ_0/3)$ is inferred to be $E_{\mathrm{sym}}(2ρ_0/3) = 25.6_{-1.3}^{+1.4}\,\mathrm{MeV}$ at $1σ$ confidence level. The obtained constraints on the $E_{\mathrm{sym}}(ρ)$ around $2ρ_0/3$ agree well with microscopic predictions and results from other isovector indicators.
description: 6 pages, 4 figures; published version
The Sixth Data Release of the Radial Velocity Experiment (RAVE) -- I: Survey Description, Spectra and Radial Velocities
Creators: name: Steinmetz, Matthias
name: Matijevic, Gal
name: Enke, Harry
name: Zwitter, Tomaz
name: Guiglion, Guillaume
name: McMillan, Paul J.
name: Kordopatis, Georges
name: Valentini, Marica
name: Chiappini, Cristina
name: Casagrande, Luca
name: Wojno, Jennifer
name: Anguiano, Borja
name: Bienayme, Olivier
name: Bijaoui, Albert
name: Binney, James
name: Burton, Donna
name: Cass, Paul
name: de Laverny, Patrick
name: Fiegert, Kristin
name: Freeman, Kenneth
name: Fulbright, Jon P.
name: Gibson, Brad K.
name: Gilmore, Gerard
name: Grebel, Eva K.
name: Helmi, Amina
name: Kunder, Andrea
name: Munari, Ulisse
name: Navarro, Julio F.
name: Parker, Quentin
name: Ruchti, Gregory R.
name: Recio-Blanco, Alejandra
name: Reid, Warren
name: Seabroke, George M.
name: Siviero, Alessandro
name: Siebert, Arnaud
name: Stupar, Milorad
name: Watson, Fred
name: Williams, Mary E. K.
name: Wyse, Rosemary F. G.
name: Anders, Friedrich
name: Antoja, Teresa
name: Birko, Danijela
name: Bland-Hawthorn, Joss
name: Bossini, Diego
name: Garcia, Rafael A.
name: Carrillo, Ismael
name: Chaplin, William J.
name: Elsworth, Yvonne
name: Famaey, Benoit
name: Gerhard, Ortwin
name: Jofre, Paula
name: Just, Andreas
name: Mathur, Savita
name: Miglio, Andrea
name: Minchev, Ivan
name: Monari, Giacomo
name: Mosser, Benoit
name: Ritter, Andreas
name: Rodrigues, Thaise S.
name: Scholz, Ralf-Dieter
name: Sharma, Sanjib
name: Sysoliatina, Kseniia
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The Radial Velocity Experiment (RAVE) is a magnitude-limited (9
description: 32 pages, 11 figures, accepted for publication to AJ
Spin-taste structure of minimally doubled fermions
Creators: name: Weber, Johannes H.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Minimally doubled fermions realize one degenerate pair of Dirac fermions on the lattice. Similarities to staggered fermions exist, namely, spin and taste degrees of freedom become intertwined, and a remnant, non-singlet chiral symmetry and ultralocality are maintained. However, charge conjugation, isotropy and some space-time reflection symmetries are broken by the cutoff. For two variants, i.e., Karsten-Wilczek (KW) or Borici-Creutz (BC) fermions, a tasted charge conjugation symmetry can be identified, and the respective representations of the spin-taste algebra can be constructed explicitly. In the case of BC fermions, the tasted symmetry indicates that amendments to the published counterterms are necessary. The spin-taste representation on the quark level permits construction of local or extended hadron interpolating operators for any spin-taste combination, albeit with contamination by parity partners and taste-symmetry violation. The few available numerical results for KW fermions are in line with expectations.
description: 9 pages, 0 figures; Parallel talk at The 40th International Symposium on Lattice Field Theory (Lattice 2023), July 31st - August 4th, 2023, Fermi National Accelerator Laboratory
Determination of S17(0) from published data
Creators: name: Cyburt, R. H.
name: Davids, B.
name: Jennings, B. K.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: Astrophysics (astro-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The experimental landscape for the 7Be+p radiative capture reaction is rapidly changing as new high precision data become available. We present an evaluation of existing data, detailing the treatment of systematic errors and discrepancies, and show how they constrain the astrophysical S factor (S17), independent of any nuclear structure model. With theoretical models robustly determining the behavior of the sub-threshold pole, the extrapolation error can be reduced and a constraint placed on the slope of S17. Using only radiative capture data, we find S17(0) = 20.7 +/- 0.6 (stat) +/- 1.0 (syst) eV b if data sets are completely independent, while if data sets are completely correlated we find S17(0) = 21.4 +/- 0.5 (stat) +/- 1.4 (syst) eV b. The truth likely lies somewhere in between these two limits. Although we employ a formalism capable of treating discrepant data, we note that the central value of the S factor is dominated by the recent high precision data of Junghans et al., which imply a substantially higher value than other radiative capture and indirect measurements. Therefore we conclude that further progress will require new high precision data with a detailed error budget.
description: 10 pages, 1 figure published version
Three Stories about the Chance of Casting a Pivotal Vote
Creators: name: Usher, Dan
name: Usher, Dan
Publisher: name: Unknown
Year: 2011
Subjects: subject: Financial Economics
subject: Public Economics
subject: Pivotal voting
subject: duty to vote
subject: compulsory voting

description: People vote from self-interest or from a sense of duty. Voting from self-interest requires there to be some chance, however small, that one’s vote swings the outcome of the election from the political party one opposes to the political party one favours. This paper is a discussion of three models of how that chance might arise: the common sense model inferring the probability of a tied vote today from the distribution of outcomes in past elections, person-toperson randomization where each voter looks upon the political preferences of rest of the electorate as analogous to drawings from an urn with given proportions of red and blue balls, and nation-wide randomization where voters are lined up according to their valuations (positive or negative) of a win for one of the two competing parties, but where chance shifts the entire schedule of preferences up or down. Emphasis is on the third model about which this paper may have something new to say.
The Sixth Data Release of the Radial Velocity Experiment (RAVE) -- II: Stellar Atmospheric Parameters, Chemical Abundances and Distances
Creators: name: Steinmetz, Matthias
name: Guiglion, Guillaume
name: McMillan, Paul J.
name: Matijevic, Gal
name: Enke, Harry
name: Kordopatis, Georges
name: Zwitter, Tomaz
name: Valentini, Marica
name: Chiappini, Cristina
name: Casagrande, Luca
name: Wojno, Jennifer
name: Anguiano, Borja
name: Bienayme, Olivier
name: Bijaoui, Albert
name: Binney, James
name: Burton, Donna
name: Cass, Paul
name: de Laverny, Patrick
name: Fiegert, Kristin
name: Freeman, Kenneth
name: Fulbright, Jon P.
name: Gibson, Brad K.
name: Gilmore, Gerard
name: Grebel, Eva K.
name: Helmi, Amina
name: Kunder, Andrea
name: Munari, Ulisse
name: Navarro, Julio F.
name: Parker, Quentin
name: Ruchti, Gregory R.
name: Recio-Blanco, Alejandra
name: Reid, Warren
name: Seabroke, George M.
name: Siviero, Alessandro
name: Siebert, Arnaud
name: Stupar, Milorad
name: Watson, Fred
name: Williams, Mary E. K.
name: Wyse, Rosemary F. G.
name: Anders, Friedrich
name: Antoja, Teresa
name: Bland-Hawthorn, Joss
name: Bossini, Diego
name: Garcia, Rafael A.
name: Carrillo, Ismael
name: Chaplin, William J.
name: Elsworth, Yvonne
name: Famaey, Benoit
name: Gerhard, Ortwin
name: Jofre, Paula
name: Just, Andreas
name: Mathur, Savita
name: Miglio, Andrea
name: Minchev, Ivan
name: Monari, Giacomo
name: Mosser, Benoit
name: Ritter, Andreas
name: Rodrigues, Thaise S.
name: Scholz, Ralf-Dieter
name: Sharma, Sanjib
name: Sysoliatina, Kseniia
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: We present part 2 of the 6th and final Data Release (DR6 or FDR) of the Radial Velocity Experiment (RAVE), a magnitude-limited (9
description: 65 pages, 33 figures, accepted for publication to AJ
Affirmative Action and Human Capital Investment: Theory and Evidence from a Randomized Field Experiment
Creators: name: Cotton, Christopher
name: Hickman, Brent R.
name: Price, Joseph P.
name: Cotton, Christopher
name: Hickman, Brent R.
name: Price, Joseph P.
Publisher: name: Unknown
Year: 2016
Subjects: subject: Demand and Price Analysis
subject: Financial Economics
subject: Affirmative Action
subject: College Admissions
subject: Field Experiment
subject: Human Capital
subject: All-Pay Auction

description: High-School human capital investment occurs within a competitive environment, and Affirmative Action (AA) shapes the relative competition between blacks and whites for admission to high-quality colleges. We present a theory of AA in university admissions and conduct a field experiment to mimic aspects of competition for college. We offer relative incentives to study math and track students’ time on a mathematics website. AA increases average human capital investment and exam performance for its target beneficiaries by mitigating “discouragement effects” We also find evidence that AA can promote greater equality of market outcomes and narrow achievement gaps at the same time.
The Expert Knowledge combined with AI outperforms AI Alone in Seizure Onset Zone Localization using resting state fMRI
Creators: name: Kamboj, Payal
name: Banerjee, Ayan
name: Boerwinkle, Varina L.
name: Gupta, Sandeep K. S.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: We evaluated whether integration of expert guidance on seizure onset zone (SOZ) identification from resting state functional MRI (rs-fMRI) connectomics combined with deep learning (DL) techniques enhances the SOZ delineation in patients with refractory epilepsy (RE), compared to utilizing DL alone. Rs-fMRI were collected from 52 children with RE who had subsequently undergone ic-EEG and then, if indicated, surgery for seizure control (n = 25). The resting state functional connectomics data were previously independently classified by two expert epileptologists, as indicative of measurement noise, typical resting state network connectivity, or SOZ. An expert knowledge integrated deep network was trained on functional connectomics data to identify SOZ. Expert knowledge integrated with DL showed a SOZ localization accuracy of 84.8& and F1 score, harmonic mean of positive predictive value and sensitivity, of 91.7%. Conversely, a DL only model yielded an accuracy of less than 50% (F1 score 63%). Activations that initiate in gray matter, extend through white matter and end in vascular regions are seen as the most discriminative expert identified SOZ characteristics. Integration of expert knowledge of functional connectomics can not only enhance the performance of DL in localizing SOZ in RE, but also lead toward potentially useful explanations of prevalent co-activation patterns in SOZ. RE with surgical outcomes and pre-operative rs-fMRI studies can yield expert knowledge most salient for SOZ identification.
description: Accepted in Frontiers in Neurology journal, section Artificial Intelligence
Analysis of the major constituents in St. John's Wort and Ephedra
Creators: name: Williams, Felicia Binion
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 34
subject: Chemical sciences
subject: FOS: Chemical sciences
classificationCode: 3401
subject: Analytical chemistry

description: The Dietary Supplement Health and Education Act of 1994 established a formal definition of a "dietary supplement" using several criteria. Dietary supplements are products made of one or more nutrients, such as vitamins, minerals and proteins. They are intended to supplement the diet. Today many consumers use supplements without evaluating the product or considering the potential side effects. The supplement industry has increased sales into the billion of dollars in the last ten years. Liquid chromatography with ultra violet/visible, fluorescence, and mass spectrometry detection were used to measure the potentially active constituents in St. John's Wort. Additionally, measurements were carried out with spectrophotometry at 590 nm. St. John's Wort is used by consumers who have mild to moderate depression. Many clinical studies have been performed in the United States and abroad and the results are not conclusive. Four analytes are considered to possess pharmacological activity: the naphthodianthrones pseudohypericin and hypericin and the phloroglucinols hyperforin and adhyperforin. This project concentrated on measuring the naphthodianthrones because label claims are based on the level of total dianthrones and not phloroglucinols. Additionally, six alkaloids in Ephedra containing Ma Huang SRM samples were measured using liquid chromatography with two modes of detection: ultraviolet and mass spectrometry. Ephedra has six analytes which possess pharmacological activity: norephedrine and norpseudoephedrine, pseudoephedrine and ephedrine and methylephedrine and methylpseudoephedrine. Norpseudoephedrine is regulated by Drug Enforcement Agency, which is a precursor to elicit drugs. Many of the products containing Ephedra analytes are diet products and substances used to boost energy levels. The levels of the analytes vary significantly from product to product and can have severe or even deadly consequences if taken. Much research is needed for the analysis of dietary supplements. Initial studies should be performed on the plant material at various times of the year to assess the levels of potentially active analytes. Also, extraction studies are important to obtain the best method for maximum recovery of the analytes of interest. It is possible that the extraction technique could vary from plant source to finished product and an alternative technique may be needed.
Exchange Rates, Cross-Border Travel, and Retailers: Theory and Empirics
Creators: name: Baggs, Jen
name: Fung, Loretta
name: Lapham, Beverly
name: Baggs, Jen
name: Fung, Loretta
name: Lapham, Beverly
Publisher: name: Unknown
Year: 2015
Subjects: subject: Financial Economics
subject: International Development
subject: International Price Differences
subject: Firm Dynamics
subject: Exchange Rate Pass-Through
subject: Cross-Border Shopping

description: This paper provides a theoretical and empirical analysis of the effects of nominal exchange rate movements on cross-border travel by consumers and on retail firms' sales. We develop a search-theoretic model of price-setting heterogeneous retailers and traveling consumers who face nominal exchange rate shocks. These exchange rate shocks act as both a supply side shock for retailers though imported input prices and a demand side shock though their effect on the propensity for consumers to cross the border and shop at foreign retail stores. The model provides predictions regarding relationships between rm and regional characteristics and the magnitude of the effects of nominal exchange rate fuctuations and resulting cross-border travel activity on retailers' sales. We use our theoretical framework to motivate an empirical methodology applied to Canadian rm and consumer level data from 1987 to 2007. Our findings indicate that an appreciation of the Canadian dollar substantially increases cross border travel which in turn has a significant negative effect on the sales of Canadian retailers. These effects diminish with the distance of the retailer from the border and with the shopping opportunities available at relevant US destinations. Using counterfactual experiments, we quantify the effects of more restrictive border controls after September 2001 which discouraged cross-border trips and reduced retailer losses from cross-border shopping as well as the effects of increased duty free allowances which raised cross-border trips and reduced retailer sales.
Weakly nonlocal continuum theories of granular media: restrictions from the Second Law
Creators: name: Van, P.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: The classical continuum mechanical model of granular media of rational thermodynamics results in a Coulomb-Mohr type equilibrium stress-strain relation. The proof is based on a two component material model introducing a scalar internal variable. Here we will show how one can get similar stress-strain relations without assuming a balance of substructural interactions, considering only the restrictions of the Second Law of thermodynamics.
description: 10 pages, 1 figure, small revision
Fast In-place Algorithms for Polynomial Operations: Division, Evaluation, Interpolation
Creators: name: Giorgi, Pascal
name: Grenet, Bruno
name: Roche, Daniel S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Symbolic Computation (cs.SC)
subject: Computational Complexity (cs.CC)
subject: FOS: Computer and information sciences

description: We consider space-saving versions of several important operations on univariate polynomials, namely power series inversion and division, division with remainder, multi-point evaluation, and interpolation. Now-classical results show that such problems can be solved in (nearly) the same asymptotic time as fast polynomial multiplication. However, these reductions, even when applied to an in-place variant of fast polynomial multiplication, yield algorithms which require at least a linear amount of extra space for intermediate results. We demonstrate new in-place algorithms for the aforementioned polynomial computations which require only constant extra space and achieve the same asymptotic running time as their out-of-place counterparts. We also provide a precise complexity analysis so that all constants are made explicit, parameterized by the space usage of the underlying multiplication algorithms.
Analysis of the major constituents in St. John's Wort and Ephedra
Creators: name: Williams, Felicia Binion
Publisher: name: American University
Year: 2023

description: The Dietary Supplement Health and Education Act of 1994 established a formal definition of a "dietary supplement" using several criteria. Dietary supplements are products made of one or more nutrients, such as vitamins, minerals and proteins. They are intended to supplement the diet. Today many consumers use supplements without evaluating the product or considering the potential side effects. The supplement industry has increased sales into the billion of dollars in the last ten years. Liquid chromatography with ultra violet/visible, fluorescence, and mass spectrometry detection were used to measure the potentially active constituents in St. John's Wort. Additionally, measurements were carried out with spectrophotometry at 590 nm. St. John's Wort is used by consumers who have mild to moderate depression. Many clinical studies have been performed in the United States and abroad and the results are not conclusive. Four analytes are considered to possess pharmacological activity: the naphthodianthrones pseudohypericin and hypericin and the phloroglucinols hyperforin and adhyperforin. This project concentrated on measuring the naphthodianthrones because label claims are based on the level of total dianthrones and not phloroglucinols. Additionally, six alkaloids in Ephedra containing Ma Huang SRM samples were measured using liquid chromatography with two modes of detection: ultraviolet and mass spectrometry. Ephedra has six analytes which possess pharmacological activity: norephedrine and norpseudoephedrine, pseudoephedrine and ephedrine and methylephedrine and methylpseudoephedrine. Norpseudoephedrine is regulated by Drug Enforcement Agency, which is a precursor to elicit drugs. Many of the products containing Ephedra analytes are diet products and substances used to boost energy levels. The levels of the analytes vary significantly from product to product and can have severe or even deadly consequences if taken. Much research is needed for the analysis of dietary supplements. Initial studies should be performed on the plant material at various times of the year to assess the levels of potentially active analytes. Also, extraction studies are important to obtain the best method for maximum recovery of the analytes of interest. It is possible that the extraction technique could vary from plant source to finished product and an alternative technique may be needed.
Adaptive Tracking and Perching for Quadrotor in Dynamic Scenarios
Creators: name: Gao, Yuman
name: Ji, Jialin
name: Wang, Qianhao
name: Jin, Rui
name: Lin, Yi
name: Shang, Zhimeng
name: Cao, Yanjun
name: Shen, Shaojie
name: Xu, Chao
name: Gao, Fei
Publisher: name: arXiv
Year: 2023
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Perching on the moving platforms is a promising solution to enhance the endurance and operational range of quadrotors, which could benefit the efficiency of a variety of air-ground cooperative tasks. To ensure robust perching, tracking with a steady relative state and reliable perception is a prerequisite. This paper presents an adaptive dynamic tracking and perching scheme for autonomous quadrotors to achieve tight integration with moving platforms. For reliable perception of dynamic targets, we introduce elastic visibility-aware planning to actively avoid occlusion and target loss. Additionally, we propose a flexible terminal adjustment method that adapts the changes in flight duration and the coupled terminal states, ensuring full-state synchronization with the time-varying perching surface at various angles. A relaxation strategy is developed by optimizing the tangential relative speed to address the dynamics and safety violations brought by hard boundary conditions. Moreover, we take SE(3) motion planning into account to ensure no collision between the quadrotor and the platform until the contact moment. Furthermore, we propose an efficient spatiotemporal trajectory optimization framework considering full state dynamics for tracking and perching. The proposed method is extensively tested through benchmark comparisons and ablation studies. To facilitate the application of academic research to industry and to validate the efficiency of our scheme under strictly limited computational resources, we deploy our system on a commercial drone (DJI-MAVIC3) with a full-size sport-utility vehicle (SUV). We conduct extensive real-world experiments, where the drone successfully tracks and perches at 30~km/h (8.3~m/s) on the top of the SUV, and at 3.5~m/s with 60° inclined into the trunk of the SUV.
Neural representation and function of language in children with new onset partial epilepsy
Creators: name: Balsamo, Lyn M.
Publisher: name: American University
Year: 2023

description: Partial epilepsy is associated with the presence of atypical language representation and a higher incidence of language impairment. The relationship between these variables has not been studied at disease onset; thus, it is not known whether seizures drive these changes or if they are present before disease onset. Use of functional magnetic resonance imaging (fMRI) allows the study of patients early in the disease course, an option that was not available with the intracarotid sodium amobarbital procedure. We used blood oxygen dependent fMRI at 1.5 Tesla to assess language networks in 5 pediatric patients with new onset partial epilepsy of the left hemisphere and 23 normally developing children using an auditory semantic decision task. Nine patients and 23 normal volunteers completed a range of standardized cognitive and language measures. Group analysis of the volunteer data revealed a strongly left-lateralized pattern that closely resembles patterns typically observed in healthy adults. However, the magnitude and extent of activation in the fusiform gyrus suggest that children may be utilizing a developmental strategy, imagery, to complete the task. Measures of intersubject variability within language cortex captured a widespread network that suggests greater variability among a child population as compared to adults. Task performance was positively related to magnitude of signal change in the left middle frontal gyrus (BA 9). A region of interest analysis captured strongly left-lateralized regional indices among 4 of the patients and atypical, bilateral representation in 1 left-handed patient. The patient group performed more poorly on language measures than the control group suggesting that these skills may be compromised early in the disease course. Given the minimal seizure history and absence of structural lesions among these patients, these findings suggest that there may be an underlying disorder that manifests in epilepsy and its associated impairments.
title: My Dog is My Piano, part 3
title: SCORE FOR CHOIR, WRITTEN BY THE STUDENTS OF THE CCT UNIVERSITY OF LEIPZIG
titleType: Subtitle
Creators: name: hosted by Antonia Baehr and Jade Dreyfuss, make up productions,
Publisher: name: The Dynamic Archive
Year: 2021
Subjects: Performance

description: Till the present day, there are four versions of ‘My Dog is My Piano’, part 3. Their scores are available on The Dynamic Archive website. If you want to see one of these scores in its entirety, please send a mail to this address : thedynamicarchive@hfk-bremen.deOn this page you can find excerpts from the score written by the CCT students and a video showing at the same time extracts of their performance and the corresponding part of the score.
A Statistical Study of Soft X-ray Flares on Solar-type Stars
Creators: name: Zhao, Zhanhao
name: Hua, Ziqian
name: Cheng, Xin
name: Li, Zhiyuan
name: Ding, Mingde
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The statistical characteristic of stellar flares at optical bands has received an extensive study, but it remains to be studied at soft X-ray bands, in particular for solar-type stars. Here, we present a statistical study of soft X-ray flares on solar-type stars, which can help understand multi-wavelength behaviors of stellar flares. We mainly use Chandra Source Catalog Release 2.0, which includes a number of flaring stars with denoted variability, and Gaia Data Release 3, which includes necessary information for classifying stars. We also develop a set of methods for identifying and classifying stellar soft X-ray flares and estimating their properties. A detailed statistical investigation for 129 flare samples on 103 nearby solar-type stars as selected yields the following main results. (1) The flare energy emitted at the soft X-ray band in our sample ranges from $\sim 10^{33}$ to $\sim 10^{37} \ \mathrm{erg}$, and the majority of them are superflares with the most energetic one having energy of $6.0_{-4.7}^{+3.2} \times 10^{37} \ \mathrm{erg}$. (2) The flare duration is related to its energy as formulated by $T_\mathrm{duration,SXR} \propto E_\mathrm{flare,SXR}^{\ 0.201 \pm 0.024}$, which is different from those derived at optical and NIR bands, indicating distinct radiation mechanisms at different bands. (3) The frequency distribution of stellar flares as a function of energy is formulated as $\mathrm{d} N_\mathrm{flare} / \mathrm{d} E_\mathrm{flare,SXR} \propto E_\mathrm{flare,SXR}^{\ -1.77}$, which is similar to the results found at other bands and on other types of stars, indicating that the energy emitted at the soft X-ray band could be a constant fraction of the full-band bolometric energy.