cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Nature of the Policy Problem
Creators: name: Brunner, Karl
name: Meltzer, Allan
Publisher: name: Carnegie Mellon University
Year: 2000
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: There is an enormous gap between monetary theory and the discussion or practice of monetary policy. Most economists agree on the general outline of a theory —at least the comparative statics framework —linking money to prices and output. As long as discussion is confined to general frameworks that have minimal content, one can easily agree on some vague principles by which monetary policy should be guided and on the measures to be used as a standard of performance for policy. Implications of the theory are translated into guidelines for action, such as: Maintain the market rate of interest above, below, or equal to the real rate on real capital required to induce investors to hold the inherited capital stock, or equal to the real rate plus the expected rate of change of prices; or maintain full employment and growth without inflation.
Meotian Age, as a Last Stage of Biodiversity of Foraminifera in the Neogene Basins of Ponto-Caspian Region.pdf
Creators: name: Maissuradze, Lamara
name: Koiava, Kakhaber
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 370510
subject: Stratigraphy (incl. biostratigraphy, sequence stratigraphy and basin analysis)

description: The study aims to reconstruct the development of foraminifer assemblages in the Meotian basins of the Ponto-Caspian region using new and existing data. In the Late Sarmatian period, these marine basins lost connection with the sea of normal salinity but regained it at the beginning of the Meotian, allowing Mediterranean-type foraminifers to colonize. During the Early Meotian, 32 genera and 90 species of mainly polyhaline foraminifers thrived, particularly in warm, oxygen-rich sublittoral zones. However, in deeper, colder, and oxygen-deficient areas, the foraminifers were smaller and less diverse. By the Late Meotian, the connection to normal salinity seas was lost again, leading to the decline of polyhaline foraminifers and their replacement by ostracods.
The Money Managers and the Boom
Creators: name: Meltzer, Allan
Publisher: name: Carnegie Mellon University
Year: 2000
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: There is little or no dispute among economists about whether recent fiscal policy—particularly the 1964 tax c u t - stimulated the economy. Moreover, there is ample evidence that output and employment expanded in the months following the tax cut. A far more interesting subject, about which there is much more dispute, is the contribution of monetary policy to the expansion. Monetary policy in 1964-65 is often described as "neutral," "mildly contractive" or "less' easy" in popular discussion, or in public statements by economists. Fiscal policy is assigned the decisive role in stimulating the economy toward its present prosperous state. But this interpretation of monetary policy has no basis in fact. From September, 1962 to September, 1965 the Federal Reserve pumped almost $7 billion of bank reserves and currency into the economy, an expansion of more than 14 per cent in the measure of monetary policy that is called the monetary base. There are few peacetime periods in the history of the Federal Reserve System when the monetary base expanded as much and as long as it has in recent years. To put the same point in another way, there are few peacetime periods in which monetary policy has been as expansive as it has been recently.
Boosting Material Modeling Using Game Tree Search
Creators: name: Sawada, Ryohto
name: Iwasaki, Yuma
name: Ishida, Masahiko
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We demonstrate a heuristic optimization algorithm based on the game tree search for multi-component materials design. The algorithm searches for the largest spin polarization of seven-component Heusler alloys. The algorithm can find the peaks quickly and is more robust against local optima than Bayesian optimization approaches using the expected improvement or upper confidence bound approaches. We also investigate Heusler alloys including anti-site disorder and show that [Fe$_{0.9}$Co$_{0.1}$]$_{2}$Cr$_{0.95}$Mn$_{0.05}$Si$_{0.3}$Ge$_{0.7}$ has the potential to be a high spin polarized material with robustness against anti-site disorder.
description: 5 pages, 6 figures
A Variational Approach to Bound States in Quantum Field Theory
Creators: name: Mishra, H.
name: Misra, S. P.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider here in a toy model an approach to bound state problem in a nonperturbative manner using equal time algebra for the interacting field operators. Potential is replaced by offshell bosonic quanta inside the bound state of nonrelativistic particles. The bosonic dressing is determined through energy minimisation, and mass renormalisation is carried out in a nonperturbative manner. Since the interaction is through a scalar field, it does not include spin effects. The model however nicely incorporates an intuitive picture of hadronic bound states in which the gluon fields dress the quarks providing the binding between them and also simulate the gluonic content of hadrons in deep inelastic collisions.
description: latex, revtex, 22 pages
The Monetary Policy Transmission Mechanism in Industrial Countries
Creators: name: McCallum, Bennett T.
Publisher: name: Carnegie Mellon University
Year: 2006
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: The main objective of this paper is to develop a simplified but substantive analysis of the monetary policy transmission mechanism that is currently relevant for most industrialized economies. The discussion will accordingly presume that institutions and policy procedures are of the general type utilized in the United States, Japan, and the Euro Area. Some attention will be paid, however, to smaller industrial economies for which foreign trade is larger in relation to domestic production.
ATEROESCLEROSIS ASOCIADA A INFECCIÓN POR Chlamydophila pneumoniae : INTERACCIÓN ENTRE EL SER HUMANO Y UNA BACTERIA
Creators: name: Gudino, Alvaro
Publisher: name: figshare
Year: 2021
Subjects: subject: 110201 Cardiology (incl. Cardiovascular Diseases)
subject: FOS: Clinical medicine

description: La ateroesclerosis y sus complicaciones constituyen una de las mayores causas de morbi-mortalidad a nivel mundial. Sin embargo, solo la mitad de los casos se justifica por los factores de riesgo tradicionales. No obstante, desde hace casi cinco décadas se ha intentado encontrar causas no tradicionales asociadas a la enfermedad ateroesclerótica. Varios agentes infecciosos han emergido como posibles candidatos centralizándose la investigación en Chlamydophila pneumoniae por su capacidad de infectar las células endoteliales durante el proceso ateroesclerótico. A lo largo del tiempo, múltiples estudios han tratado de probar la causalidad de C. pneumoniae en el proceso ateroesclerótico y sus complicaciones. A pesar de esto, hasta la fecha las conclusiones son ambiguas y de poca relevancia para la práctica clínica diaria.
Signposts and messagesticks: An ethnographic study of non-indigenous drama teachers’ engagement with an indigenous drama text
Creators: name: Eckersley, Mark
Publisher: name: Australian Catholic University
Year: 2019

description: The purpose of this ethnographic study is to investigate how non-Indigenous Australian secondary drama teachers engage with an Australian Indigenous drama text. Some studies, such as those of Moriarty (1995) and Harrison and Greenfield (2011), have focused on the implementation and teaching of ‘Aboriginal Studies’ and ‘Aboriginal Culture’. There is a gap in scholarly literature relating to the way teachers engage with Indigenous Australian perspectives and texts. In this research, I address the following question: ‘How do non-Indigenous Victorian secondary school drama teachers (NIVSSDTs) engage with Indigenous Australian drama texts and what effects does this have on ‘ways of seeing’ that develops knowledge and understanding?’ Ethnographic and case study research is used to examine how non-Indigenous Victorian secondary school drama teachers (NIVSSDTs) perceive and make sense of an Indigenous Australian drama text. A case study was conducted that included four NIVSSDTs in an ethnographic study of their teaching of an Indigenous drama text. Data collection was based on three data collection methods. First, semi-structured interviews with each of the four NIVSSDTs were undertaken. Second, visual journals of the NIVSSDTs were examined. Finally, discussion in forums involving the participants took place. The case design was informed by Indigenous Australian Aboriginal pedagogy of cultural interface as represented in the eight-stage model of Yunkaporta (2009) and the work on privileging Indigenous Australian ‘ways of Knowing’ by Rigney (1997), Smith (1999), Nakata (2003), Foley (2002) and Blair (2015). Important also to the data analysis were ‘theories of visuality’, especially the conceptual frameworks of reception theory (Hall 1980). Findings from the study were that NIVSSDTs primarily adopt hegemonic or negotiated operating positions especially when concentrating on exam criteria. Negotiated positioning is more evident when NIVSSDTs concentrate on story, themes and contexts. NIVSSDTs tended to aestheticise, objectify and engage with Indigenous Australian cultures positioning Indigenous ‘ways of Knowing’ on the periphery of Western knowledge constructs. Lack of meaningful consultation with Indigenous Australian knowledge holders is also evident. The significance of my research lies in its contribution to knowledge about social, cultural and political issues surrounding Non-Indigenous teachers’ engagement with Indigenous cultures and ‘ways of Knowing'.
Self-Destructing Dark Matter
Creators: name: Grossman, Yuval
name: Harnik, Roni
name: Telem, Ofri
name: Zhang, Yue
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present Self-Destructing Dark Matter (SDDM), a new class of dark matter models which are detectable in large neutrino detectors. In this class of models, a component of dark matter can transition from a long-lived state to a short-lived one by scattering off of a nucleus or an electron in the Earth. The short-lived state then decays to Standard Model particles, generating a dark matter signal with a visible energy of order the dark matter mass rather than just its recoil. This leads to striking signals in large detectors with high energy thresholds. We present a few examples of models which exhibit self destruction, all inspired by bound state dynamics in the Standard Model. The models under consideration exhibit a rich phenomenology, possibly featuring events with one, two, or even three lepton pairs, each with a fixed invariant mass and a fixed energy, as well as non-trivial directional distributions. This motivates dedicated searches for dark matter in large underground detectors such as Super-K, Borexino, SNO+, and DUNE.
description: 23 pages, 7 figures
The XY Model Coupled to Two-Dimensional Quantum Gravity
Creators: name: Baillie, C. F.
name: Johnston, D. A.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We perform Monte Carlo simulations using the Wolff cluster algorithm of the XY model on both fixed and dynamical phi-cubed graphs (i.e. without and with coupling to two-dimensional quantum gravity). We compare the numerical results with the theoretical expectation that the phase transition remains of KT type when the XY model is coupled to gravity. We also examine whether the universality we discovered in our earlier work on various Potts models with the same value of the central charge, $c$, carries over to the XY model, which has $c=1$.
description: 8 pages
Stellar metallicity and age of massive early-type galaxies over 12 Gyr
Creators: name: Saracco, Paolo
Publisher: name: Zenodo
Year: 2019

description: Age and metallicity of the stellar component are two foundamental parameters to infer the star formation history of a galaxy and to trace its likely evolution. Here, I will present stellar age and metallicity estimates for massive early-type galaxies in the redshift range 1<z<3.5. The talk will focus on the uncertainty/dependency of the estimates on the different stellar population models assumed.
The Monetary Approach to Inflation and the Balance of Payments: Theoretical and Empirical Contributions at the Leuven Conference
Creators: name: Meltzer, Allan
Publisher: name: Carnegie Mellon University
Year: 2009
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: The problem of world inflation and the desire to compare our theories of inflation in open economies with the accumulating evidence prompted the sponsors to organize a conference on Bank Credit, Money and Inflation at the Katholieke Universiteit Leuven in September 1974. The papers and comments in this volume are the contributions of the conference and its principal work. Most of the papers fall within the very broad framework known as the monetary approach to the balance of payments and inflation. The distinguishing characteristic of this approach is not a particular analytical structure or model but a set of general principles guiding research. Two principles appear to be generally and perhaps universally accepted by those who use the framework. Both are long-run propositions
Tuning‐Confined States and Valley G‐Factors by Quantum Dot Design in Bilayer Graphene
Creators: name: Mayer, Dennis
name: Knothe, Angelika
Publisher: name: Universität Regensburg
Year: 2023
Subjects: subject: bilayer graphene, g-factor modulation, quantum dots, valleytronics
subject: 530 Physik

description: Electrostatically confined quantum dots in bilayer graphene have shown potential as building blocks for quantum technologies. To operate the dots, e.g., as qubits, a precise understanding and control of the confined states and their properties is required. Herein, a large-scale numerical characterization of confined quantum states in bilayer graphene dots is performed over an extensive range of gate-tunable parameters such as the dot size, depth, shape, and the bilayer graphene gap. The dot states’ orbital degeneracy, wave function distribution, and valley g-factor are established and the parametric dependencies to achieve different regimes are provided. It is found that the dot states are highly susceptible to gate-dependent confinement and material parameters, enabling efficient tuning of confined states and valley g-factor modulation by quantum dot design.
The Microstructure of the Bond Market in the 20th Century
Creators: name: Biais, Bruno
name: Green, Richard C.
Publisher: name: Carnegie Mellon University
Year: 1999
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: Bonds are traded in over-the-counter markets, where opacity and fragmentation imply large transaction costs for retail investors. Is there something special about bonds, in contrast to stocks, precluding transparent limit-order markets? Historical experience suggests this is not the case. Before WWII, there was an active market in corporate and municipal bonds on the NYSE. Activity dropped dramatically, in the late 1920s for municipals and in the mid 1940s for corporate, as trading migrated to the over-the-counter market. The erosion of liquidity on the exchange occurred simultaneously with increases in the relative importance of institutional investors, who fare better in OTC market. Based on current and historical high frequency data, we find that average trading costs in municipal bonds on the NYSE were half as large in 1926-1927 as they are today over the counter. Trading costs in corporate bonds for small investors in the 1940s were as low or lower in the 1940s than they are now. The difference in transactions costs are likely to reflect the differences in market structures, since the underlying technological changes have likely reduced costs of matching buyers and sellers.
MOFDiff: Coarse-grained Diffusion for Metal-Organic Framework Design
Creators: name: Fu, Xiang
name: Xie, Tian
name: Rosen, Andrew
name: Jaakkola, Tommi
name: Smith, Jake
Publisher: name: Zenodo
Year: 2024

description: This repository contains:

bw_db.tar.gz: the preprocessed BW-DB dataset

pretrained.tar.gz: pretrained building block encoder and CG diffusion models

bb_emb_space.tar.gz: the building block embedding space

WC_optimized.tar.gz: MOF samples from MOFDiff that condition on a high CO2 working capacity. 2085 samples were valid, novel, and unique (VNU) from 10000 total samples.

described in the paper: "MOFDiff: Coarse-grained Diffusion for Metal-Organic Framework Design."

paper: https://arxiv.org/abs/2310.10732

code: https://github.com/microsoft/MOFDiff

If you find this repository useful, please consider reference in your paper:

@inproceedings{
fu2024mofdiff,
title={{MOFD}iff: Coarse-grained Diffusion for Metal-Organic Framework Design},
author={Xiang Fu and Tian Xie and Andrew Scott Rosen and Tommi S. Jaakkola and Jake Allen Smith},
booktitle={The Twelfth International Conference on Learning Representations},
year={2024},
url={https://openreview.net/forum?id=0VBsoluxR2}
}@article{boyd2019data,
  title={Data-driven design of metal--organic frameworks for wet flue gas CO2 capture},
  author={Boyd, Peter G and Chidambaram, Arunraj and Garc{\'\i}a-D{\'\i}ez, Enrique and Ireland, Christopher P and Daff, Thomas D and Bounds, Richard and G{\l}adysiak, Andrzej and Schouwink, Pascal and Moosavi, Seyed Mohamad and Maroto-Valer, M Mercedes and others},
  journal={Nature},
  volume={576},
  number={7786},
  pages={253--256},
  year={2019},
  publisher={Nature Publishing Group UK London}
}
MOFDiff: Coarse-grained Diffusion for Metal-Organic Framework Design
Creators: name: Fu, Xiang
name: Xie, Tian
name: Rosen, Andrew
name: Jaakkola, Tommi
name: Smith, Jake
Publisher: name: Zenodo
Year: 2024

description: This repository contains:

bw_db.tar.gz: the preprocessed BW-DB dataset

pretrained.tar.gz: pretrained building block encoder and CG diffusion models

bb_emb_space.tar.gz: the building block embedding space

described in the paper: "MOFDiff: Coarse-grained Diffusion for Metal-Organic Framework Design."

paper: https://arxiv.org/abs/2310.10732

code: https://github.com/microsoft/MOFDiff

If you find this repository useful, please consider reference in your paper:

@inproceedings{
fu2024mofdiff,
title={{MOFD}iff: Coarse-grained Diffusion for Metal-Organic Framework Design},
author={Xiang Fu and Tian Xie and Andrew Scott Rosen and Tommi S. Jaakkola and Jake Allen Smith},
booktitle={The Twelfth International Conference on Learning Representations},
year={2024},
url={https://openreview.net/forum?id=0VBsoluxR2}
}@article{boyd2019data,
  title={Data-driven design of metal--organic frameworks for wet flue gas CO2 capture},
  author={Boyd, Peter G and Chidambaram, Arunraj and Garc{\'\i}a-D{\'\i}ez, Enrique and Ireland, Christopher P and Daff, Thomas D and Bounds, Richard and G{\l}adysiak, Andrzej and Schouwink, Pascal and Moosavi, Seyed Mohamad and Maroto-Valer, M Mercedes and others},
  journal={Nature},
  volume={576},
  number={7786},
  pages={253--256},
  year={2019},
  publisher={Nature Publishing Group UK London}
}
Dynamical and biological panspermia constraints within multi-planet exosystems
Creators: name: Veras, Dimitri
name: Armstrong, David J.
name: Blake, James A.
name: Gutierrez-Marcos, Jose F.
name: Jackson, Alan P.
name: Schaefer, Hendrik
Publisher: name: arXiv
Year: 2018
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: As discoveries of multiple planets in the habitable zone of their parent star mount, developing analytical techniques to quantify extrasolar intra-system panspermia will become increasingly important. Here, we provide user-friendly prescriptions that describe the asteroid impact characteristics which would be necessary to transport life both inwards and outwards within these systems within a single framework. Our focus is on projectile generation and delivery and our expressions are algebraic, eliminating the need for the solution of differential equations. We derive a probability distribution function for life-bearing debris to reach a planetary orbit, and describe the survival of micro-organisms during planetary ejection, their journey through interplanetary space, and atmospheric entry.
description: Published in Astrobiology, but colour plots are in the arXiv version only
The Measurement of an Individual's Organization Map
Creators: name: Goodman, Paul S.
Publisher: name: Carnegie Mellon University
Year: 2003
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: This paper proposes a theoretical framework and operational measure of an individual's organization map, that is his perceptual model of the organization. Data were obtained from two departments in an insurance corporation to study the relationship between the organization map and various structural and personality variables. The analysis gave some support to the validity of the organization-map scale. The implications of the concept and measure of the organization map for organization theory and administrative practices are discussed.
The Meaning of Monetary Indicators
Creators: name: Brunner, Karl
name: Meltzer, Allan
Publisher: name: Carnegie Mellon University
Year: 2004
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: Among the topics that monetary economists discuss, few have been debated as much or as long as the meaning of a given change or rate of change in the stock of money or the interest rate. Some have stressed the importance of monetary or of interest rate changes as a guide to the future pace of economic activity. Yet it seems reasonable to conclude that the partisans have not succeeded in convincing others that one or the other of these variables is the most reliable measure of the effect of monetary policy. There is not even agreement that the choice is restricted to these two measures. Bank credit, free reserves, liquid assets, and other variables are mentioned frequently. Since it is not unusual to find that quite different—even opposite—conclusions are suggested by the various measures, a comparison of the information provided by some of the variables proposed as indicators is called for.
A Comparative Study of the Eruptive and Non-Eruptive Flares Produced by the Largest Active Region of Solar Cycle 24
Creators: name: Sarkar, Ranadeep
name: Srivastava, Nandita
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We investigate the morphological and magnetic characteristics of solar active region (AR) NOAA 12192. AR 12192 was the largest region of Solar Cycle 24; it underwent noticeable growth and produced 6 X-class flares, 22 M-class flares, and 53 C-class flares in the course of its disc passage. However, the most peculiar fact of this AR is that it was associated with only one CME in spite of producing several X-class flares. In this work, we carry out a comparative study between the eruptive and non-eruptive flares produced by AR 12192. We find that the magnitude of abrupt and permanent changes in the horizontal magnetic field and Lorentz force are significantly smaller in the case of the confined flares compared to the eruptive one. We present the areal evolution of AR 12192 during its disc passage. We find the flare-related morphological changes to be weaker during the confined flares, whereas the eruptive flare exhibits a rapid and permanent disappearance of penumbral area away from the magnetic neutral line after the flare. Furthermore, from the extrapolated nonlinear force-free magnetic field, we examine the overlying coronal magnetic environment over the eruptive and non-eruptive zones of the AR. We find that the critical decay index for the onset of torus instability was achieved at a lower height over the eruptive flaring region, than for the non-eruptive core area. These results suggest that the decay rate of the gradient of overlying magnetic field strength may play a decisive role to determine the CME productivity of the AR. In addition, the magnitude of changes in the flare-related magnetic characteristics are found to be well correlated with the nature of solar eruptions.
description: 25 pages, 14 figures, Accepted for publication in Solar Physics Journal
The Centre of M83
Creators: name: Houghton, R. C. W.
name: Thatte, N.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Stellar kinematics show no evidence of hidden mass concentrations at the centre of M83. We show the clearest evidence yet of an age gradient along the starburst arc and interpret the arc to have formed from orbital motion away from a starforming region in the dust lane.
description: 2 pages, 3 figues, Proceeding of the IAU Symposium 245 on "Formation and Evolution of Galaxy Bulges"
Numerical study of Yang-Mills classical solutions on the twisted torus
Creators: name: Perez, M. Garcia
name: Gonzalez-Arroyo, A.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We use the lattice cooling method to investigate the structure of some gauge fixed SU(2) Yang-Mills classical solutions of the euclidean equations of motion which are defined in the 3-torus with symmetric twisted boundary conditions.
description: 20pp (fig.included)
Spin conductances and magnetization production in chiral molecular junctions
Creators: name: Korytár, Richard
name: van Ruitenbeek, Jan M.
name: Evers, Ferdinand
Publisher: name: Universität Regensburg
Year: 2024
Subjects: subject: 530 Physik

description: Motivated by experimental reports on chirality induced spin selectivity, we investigate a minimal model that allows us to calculate the charge and spin conductances through helical molecules analytically. The spin–orbit interaction is assumed to be non-vanishing on the molecule and negligible in the reservoirs (leads). The band structure of the molecule features four helical modes with spin-momentum locking that are analogous of edge-currents in the quantum spin Hall effect. While charge is conserved and therefore the charge current is independent of where it is measured—reservoirs or molecule—our detailed calculations reveal that the spin currents in the left and right leads are equal in magnitudes but with opposite signs (in linear response). We predict that transport currents flowing through helical molecules are accompanied by a spin accumulation in the contact region with the same magnetization direction for source and drain. Furthermore, we predict that the spin-conductance can be extracted directly from measuring the (quasi-static) spin accumulation—rather than the spin current itself, which is very challenging to obtain experimentally.
Anesthetic gas effects on quantum vibrations in microtubules – Testing the Orch OR theory of consciousness
Creators: name: Kalra, Aarat
name: Hameroff, Stuart
name: Tuszynski, Jack
name: Dogariu, Aristide
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Physical Sciences and Mathematics
subject: Life Sciences
subject: 2D 4 Wave spectroscopy
subject: delayed luminescence
subject: microtubules
subject: Orch OR
subject: quantum biology
subject: tubulin

description: This project seeks to evaluate if quantum mechanics can play functionally relevant roles in microtubules and tubulin. We will test the validity of Orch OR by performing two sets of experiments on tubulin and microtubules: 1. Ultrafast spectroscopy 2. Delayed Luminescence. We will study how the presence of anesthetics alter quantum interactions in each experiment.
Toward Understanding the Origin of Asteroid Geometries: Variety in Shapes Produced by Equal-Mass Impacts
Creators: name: Sugiura, Keisuke
name: Kobayashi, Hiroshi
name: Inutsuka, Shu-ichiro
Publisher: name: arXiv
Year: 2018
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: More than a half of asteroids in the main belt have irregular shapes with the ratios of the minor to major axis lengths less than 0.6. One of the mechanisms to create such shapes is collisions between asteroids. The relationship between shapes of collisional outcomes and impact conditions such as impact velocities may provide information on the collisional environments and its evolutionary stages when those asteroids are created. In this study, we perform numerical simulations of collisional destruction of asteroids with radii 50 km and subsequent gravitational reaccumulation using Smoothed Particle Hydrodynamics for elastic dynamics with self-gravity, a model of fracture of rock, and a model of friction of completely damaged rock. We systematically vary the impact velocity from 50 m/s to 400 m/s and the impact angle from 5 degrees to 45 degrees. We investigate shapes of the largest remnants resulting from collisional simulations. As a result, various shapes (bilobed, spherical, flat, elongated, and hemispherical shapes) are formed through equal-mass and low-velocity (50 - 400 m/s) impacts. We clarify a range of the impact angle and velocity to form each shape. Our results indicate that irregular shapes, especially flat shapes, of asteroids with diameters larger than 80 km are likely to be formed through similar-mass and low-velocity impacts, which are likely to occur in the primordial environment prior to the formation of Jupiter.
description: 11 pages, 15 figures, accepted to Astronomy and Astrophysics
The Markets for Housing and Housing Services
Creators: name: Arcelus, Francisco
name: Meltzer, Allan
Publisher: name: Carnegie Mellon University
Year: 1983
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: In the U. S., and in most other developed countries, decisions about purchasing producing, and financing housing and housing services have not been left to the unrestricted market decisions of individuals or other private decision making units. With few exceptions, governments have adopted national housing policies to modify the decisions that would be reached in the marketplace. The legislated U . S. goal, "a decent home and a suitable living environment for every American family," [report on National Housing Goals, 16, p. 1] is to be achieved by constructing or rehabilitating 6 million housing units by 1978.
Scattering of very light charged particles
Creators: name: Taylor, J C
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I advance arguments against the view that the Lee-Nauenberg-Kinoshita theorem is relevant in practice to the scattering of charged particles as their mass tends to zero. I also discuss the case of massive coloured particle scattering.
description: 4 pages, plain TeX, DAMTP-93-24
title: „The Power of Food to Bring People Together and Create Common Ground“. Affektive Dissonanz und transnationale Solidarität in einem Ernährungsnetzwerk
Creators: name: Franke, Esther M.
name: Wember, Carla
Publisher: name: Humboldt-Universität zu Berlin
Year: 2019
Subjects: subject: Dissonanz
subject: Marginalisierung
subject: Solidarität
subject: Sorge
subject: ddc:303

description: Wie entstehen kollektives Handeln und Solidaritäten jenseits von Identitätspolitik? Dies ist Ausgangsfrage und Erkenntnisinteresse dieses Artikels, der sich der Entstehung von subjektiven und kollektiven Räumen der Bewegung in und durch geteilte lebensweltliche Sphären zuwendet. Aufbauend auf Material, das in einer empirischen Studie im Ernährungsnetzwerk in Toronto, Kanada, gewonnen wurde, wird argumentiert, dass durch Problematisierungen geteilter lebensweltlicher Anliegen, wie hier Ernährung, Räume für eine Politisierung jenseits von Identitätspolitik entstehen. Diese Räume produzieren „affektive Dissonanzen“ (Hemmings 2012), die transnationale solidarische Praktiken ermöglichen. Affektive Dissonanzen werden verstanden als (körperliche) Erfahrung von Divergenz zwischen Ontologie und Epistemologie, also der Differenz zwischen der gefühlten Wahrnehmung des eigenen Seins in der Welt und den Bedingungen eines lebbaren Lebens. Wie über affektive Dissonanzen solidarische Praktiken entstehen ist dabei zentrales Augenmerk des Artikels. Es wird gezeigt, dass materialisierte Ungleichheiten, für die Deutungsangebote bestehen – wie in diesem Fall rassistisch produzierte (ökonomische) Marginalisierung –, affektive Dissonanzen explizierbar machen, während andere (in diesem Fall die Verbindung, Naturalisierung und Abwertung von Weiblichkeit mit Sorge) zwar diffus gefühlt jedoch nicht eingeordnet werden können. Damit, so das Argument, wird die Existenz eines Deutungsangebots zu einer zentralen Schnittstelle von affektiver Dissonanz und Solidarität jenseits von Identitätspolitik.
The Market for Recylables: Prospects and Problems
Creators: name: Lave, Lester B.
name: Arpad  Horvath
Publisher: name: Carnegie Mellon University
Year: 2012
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: A modem industrial economy uses large quantities of raw materials, from resources that are consumed in use, such as fossil fuels, to materials that can be recycled a limited number of times, such as paper, to materials that are always available to future uses, such as metals. Any simple extrapolation of materials' use as world GDP rises demonstrates that our use of raw materials is not sustainable (Meadows 1972). The Limits to Growth set off widespread concern about using up the Earth's resources. The Brundtland Commission (World Commission 1987) formulated the issues in terms of "sustainable development" - providing for the needs of today without compromising the ability of people to provide for their needs in the future. This definition is universally applauded because it can satisfy almost all people, from the most concerned environmentalist to the most narrow industrialist.
Epidemiología, patogénesis y genética de la fibrilación auricular
Creators: name: Gudino, Alvaro
Publisher: name: figshare
Year: 2021
Subjects: subject: 110201 Cardiology (incl. Cardiovascular Diseases)
subject: FOS: Clinical medicine

description: Desde hace cientos de años la Fibrilación Auricular ha levantado gran interés entre los investigadores tanto por su forma de presentación como por las graves consecuencias que ésta conlleva. Actualmente se ha constituido en uno de los principales rubros económicos en lo que a gastos en salud se refiere. Su etiología es multifactorial y afecta a millones de personas en todo el mundo, haciendo de esta patología un blanco muy importante de investigación en pos de lograr evitar el desarrollo de esta enfermedad. El objetivo de este estudio fue definir la epidemiología y patogénesis, así como realizar un abordaje relacionado a los factores genéticos relacionados con la fibrilación auricular. La revisión bibliográfica incluyó artículos originales y artículos de revisión seleccionados de la base de datos Medline teniendo como criterio de inclusión su publicación dentro de los últimos diez años.
The Many Faces of Absenteeism: Issues in the Methodology of Absence Event Studies
Creators: name: Atkin, Robert S.
name: Goodman, Paul S.
Publisher: name: Carnegie Mellon University
Year: 1991
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: This chapter IS concerned with the methodological issues that underlie the operationalization and measurement of absenteeism, As such it sets the stage for the paper by Hotz and Avery (Chapter 5) who consider the specification and estimation of models of absenteeism, That is. the present chapter considers the characterization of the absence variable. while Hotz and Avery address the problems of how to build causal models of absenteeism and how to estimate the relative effects of the various explanatory variables Both the present paper and the Hotz and A very paper follow from the theoretical framework developed by Fichman (Chapter 2). although both develop concepts somewhat independent of the specifics of Fichman.
Cabibbo--Kobayashi--Maskawa Mixing in Superstring Derived Standard--like Models
Creators: name: Faraggi, Alon E.
name: Halyo, Edi
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We examine the problem of three generation quark flavor mixing in realistic, superstring derived standard--like models, constructed in the free fermionic formulation. We study the sources of family mixing in these models and discuss the necessary conditions to obtain a realistic Cabibbo--Kobayashi--Maskawa (CKM) mixing matrix. In a specific model, we estimate the mixing angles and discuss the weak CP violating phase. We argue that the superstring standard--like models can produce a realistic CKM mixing matrix. We discuss the possible textures of quark mass matrices that may be obtained in these models.
description: WIS--93/35/APR--PH, 29 pages
Non-reciprocity of vortex-limited critical current in conventional superconducting micro-bridges
Creators: name: Suri, Dhavala
name: Kamra, Akashdeep
name: Meier, Thomas Norbert  G.
name: Kronseder, Matthias
name: Belzig, Wolfgang
name: Back, Christian H.
name: Strunk, Christoph
Publisher: name: Universität Regensburg
Year: 2022
Subjects: subject: BARRIER; DIODE;
subject: 530 Physik

description: Non-reciprocity in the critical current has been observed in a variety of superconducting systems and has been called the superconducting diode effect. The origin underlying the effect depends on the symmetry breaking mechanisms at play. We investigate superconducting micro-bridges of NbN and also NbN/magnetic insulator (MI) hybrids. We observe a large diode efficiency of approximate to 30% when an out-of-plane magnetic field as small as 25 mT is applied. In both NbN and NbN/MI hybrid, we find that the diode effect vanishes when the magnetic field is parallel to the sample plane. Our observations are consistent with the critical current being determined by the vortex surface barrier. Unequal barriers on the two edges of the superconductor strip result in the diode effect. Furthermore, the rectification is observed up to 10 K, which makes the device potential for diode based applications over a larger temperature range than before.
The long-term life cycle private and external costs of high coal usage in the US
Creators: name: Joule A. Bergerson
name: Lave, Lester B
Publisher: name: Carnegie Mellon University
Year: 2010
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: Using four times as much coal in 2050 for electricity production need not degrade air quality or increase greenhouse gas emissions. Current SOx and NOx emissions from the power sector could be reduced from 12 to less than 1 and from 5 to 2 million tons annually, respectively, using advanced technology. While direct CO2 emissions from new power plants could be reduced by over 87%, life cycle emissions could increase by over 25% due to the additional coal that is required to be mined and transported to compensate for the energy penalty of the carbon capture and storage technology. Strict environmental controls push capital costs of pulverized coal (PC) and integrated coal gasification combined cycle (IGCC) plants to $1500–1700/kW and $1600–2000/kW, respectively. Adding carbon capture and storage (CCS) increases costs to $2400–2700/kW and $2100–3000/kW (2005 dollars), respectively. Adding CCS reduces the 40–43% efficiency of the ultra-supercritical PC plant to 31–34%; adding CCS reduces the 32–38% efficiency of the GE IGCC plant to 27–33%. For IGCC, PC, and natural gas combined cycle (NGCC) plants, the carbon dioxide tax would have to be $53, $74, and $61, respectively, to make electricity from a plant with CCS cheaper. Capturing and storing 90% of the CO2 emissions increases life cycle costs from 5.4 to 11.6 cents/kWh. This analysis shows that 90% CCS removal efficiency, although being a large improvement over current electricity generation emissions, results in life cycle emissions that are large enough that additional effort is required to achieve significant economy-wide reductions in the US for this large increase in electricity generation using either coal or natural gas.
Sensitivity of the MnTe valence band to the orientation of magnetic moments
Creators: name: Faria Junior, Paulo E.
name: de Mare, Koen A.
name: Zollner, Klaus
name: Ahn, Kyo-hoon
name: Erlingsson, Sigurdur I.
name: van Schilfgaarde, Mark
name: Výborný, Karel
Publisher: name: Universität Regensburg
Year: 2023
Subjects: subject: 530 Physik

description: An effective model of the hexagonal (NiAs-structure) manganese telluride valence band in the vicinity of the A point of the Brillouin zone is derived. It is shown that whereas for the usual antiferromagnetic order (magnetic moments on the basal plane) band splitting at A is small, their out-of-plane rotation enhances the splitting dramatically (to about 0.5 eV). We propose extensions of recent experiments [Phys. Rev. Mater. 6, 014404 (2022)] where such inversion of magnetocrystalline anisotropy has been observed in Li-doped MnTe to confirm this unusual sensitivity of a semiconductor band structure to magnetic order.
HESS VHE Gamma-Ray Sources Without Identified Counterparts
Creators: name: HESS Collaboration
name: Aharonian, F.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The detection of gamma rays in the very-high-energy (VHE) energy range (100 GeV--100 TeV) provides a direct view of the parent population of ultra-relativistic particles found in astrophysical sources. For this reason, VHE gamma rays are useful for understanding the underlying astrophysical processes in non-thermal sources. We investigate unidentified VHE gamma-ray sources that have been discovered with HESS in the most sensitive blind survey of the Galactic plane at VHE energies conducted so far. The HESS array of imaging atmospheric Cherenkov telescopes (IACTs) has a high sensitivity compared with previous instruments(~ 0.01 Crab) in 25 hours observation time for a 5 sigma point-source detection), and with its large field of view, is well suited for scan-based observations. The on-going HESS survey of the inner Galaxy has revealed a large number of new VHE sources, and for each we attempt to associate the VHE emission with multi-wavelength data in the radio through X-ray wavebands. For each of the eight unidentified VHE sources considered here, we present the energy spectra and sky maps of the sources and their environment. The VHE morphology is compared with available multi-wavelength data (mainly radio and X-rays). No plausible counterparts are found.
Violation of Thermal Conductivity Bound in Horndeski Theory
Creators: name: Liu, Hai-Shan
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider AdS black planar black hole in the four-dimensional Einstein-Maxwell-Horndeski theory with two free axions and analyse the thermodynamics of the black hole. We calculate the holographic thermoelectric conductivities of the dual field theory and determine the ratio of thermal conductivity over the temperature. At low temperature with zero electric current, we find that the ratio is proportional to temperature squared and hence can arbitrarily approach zero, providing an example that violates the thermal conductivity bound proposed in [arXiv:1511.05970].
description: 12 pages, no figure, typo corrected, references added
Tunneling and the Spectrum of the Potts Model
Creators: name: Wang, Jing-Dong
name: DeTar, Carleton
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: The three-dimensional, three-state Potts model is studied as a paradigm for high temperature quantum chromodynamics. In a high statistics numerical simulation using a Swendson-Wang algorithm, we study cubic lattices of dimension as large as $64^3$ and measure correlation functions on long lattices of dimension $20^2\times 120$ and $30^2\times 120$. These correlations are controlled by the spectrum of the transfer matrix. This spectrum is studied in the vicinity of the phase transition. The analysis classifies the spectral levels according to an underlying $S_3$ symmetry. Near the phase transition the spectrum agrees nicely with a simple four-component hamiltonian model. In the context of this model, we find that low temperature ordered-ordered interfaces nearly always involve a disordered phase intermediate. We present a new spectral method for determining the surface tension between phases.
description: 26 pages plus 13 Postscript figures (Axis versions also provided), UU-HEP-92/4
The Link between Organizational Errors and Adverse Consequences: The Role of Error-Correcting and Error-Amplifying Feedback Processes
Creators: name: Rangaraj  Ramanujam
name: Goodman, Paul S.
Publisher: name: Carnegie Mellon University
Year: 2011
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: We examine when and how organizations experience major adverse outcomes as a result of latent errors in their operations—i.e., unintended deviations from pre-specified rules and standard operating procedures that can potentially generate adverse outcomes of organizational significance. To address these questions, we develop a conceptual framework around organizational feedback processes for error correction and error amplification and their organizational antecedents. We illustrate the framework using two contrasting cases. In one case set in an investment bank, several recognizable precursors of errors were present over an extended period of time and eventually contributed to losses in excess of $1 billion. In the other case set in a hospital that adopted several recommended practices for effective error management, errors nevertheless caused the preventable deaths of three infants. We discuss the challenges and opportunities for future research about the role of organizational feedback processes in linking latent errors and adverse consequences.