cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The age of the main population of the Sagittarius dwarf spheroidal galaxy. Solving the "M giant conundrum"
Creators: name: Bellazzini, M.
name: Correnti, M.
name: Ferraro, F. R.
name: Monaco, L.
name: Montegriffo, P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a statistically decontaminated Color Magnitude Diagram of a 1 deg X 1 deg field in the core of the Sagittarius dSph galaxy. Coupling this CMD with the most recent metallicity distributions obtained from high resolution spectroscopy we derive robust constraints on the mean age of the stellar population that dominates the galaxy (Pop A). Using three different sets of theoretical isochrones in the metallicity range -0.4<= [M/H]<= -0.7 and taking into consideration distance moduli in the range 16.90<= (m-M)_0<= 17.20 we find that the mean age of Pop A is larger than 5 Gyr, and the best-fit value is age = 8.0 +/- 1.5 Gyr. Since Pop A provides the vast majority of the M giants that traces the tidal stream of Sgr dSph all over the sky, our estimate resolves the so called ``M giant conundrum'' (Majewski et al. 2003). The time needed by the M giants that currently populates the Stream to diffuse within the main body of Sgr and to reach the extremes of the tidal tails once torn apart from the parent galaxy (~ 3-4 Gyr) can be easily accommodated into the time lapsed since their birth (~ 5.5-9.5 Gyr).
description: Accepted for publication by Astronomy & Astrophysics (Letters). Latex. 5 pages, 3 figures, figure 1 is provided only in JPEG format because of the large size of the original .ps figure
Interviews with those involved in the production of specialty coffees of Varre-Sai from Political architectures in the municipality of Varre-Sai (Brazil): for sustainabilities in ‘specialty coffees' production management
Creators: name: Morais, Marcelo Orozco
name: Silva, Augusto César Pinheiro Da
Publisher: name: The Royal Society
Year: 2021
Subjects: Environmental Science

description: Systematized spreadsheet of responses from those involved in the production of specialty coffees in the municipality of Varre-Sai (RJ)
Interviews with those involved in the production of specialty coffees of Varre-Sai from Political architectures in the municipality of Varre-Sai (brazil): for sustainabilities in ‘specialty coffees' production management
Creators: name: Morais, Marcelo Orozco
name: Silva, Augusto César Pinheiro Da
Publisher: name: The Royal Society
Year: 2021
Subjects: Environmental Science

description: Systematized spreadsheet of responses from those involved in the production of specialty coffees in the municipality of Varre-Sai (RJ)
Mesoscale theory of grains and cells: crystal plasticity and coarsening
Creators: name: Limkumnerd, Surachate
name: Sethna, James P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Solids with spatial variations in the crystalline axes naturally evolve into cells or grains separated by sharp walls. Such variations are mathematically described using the Nye dislocation density tensor. At high temperatures, polycrystalline grains form from the melt and coarsen with time: the dislocations can both climb and glide. At low temperatures under shear the dislocations (which allow only glide) form into cell structures. While both the microscopic laws of dislocation motion and the macroscopic laws of coarsening and plastic deformation are well studied, we hitherto have had no simple, continuum explanation for the evolution of dislocations into sharp walls. We present here a mesoscale theory of dislocation motion. It provides a quantitative description of deformation and rotation, grounded in a microscopic order parameter field exhibiting the topologically conserved quantities. The topological current of the Nye dislocation density tensor is derived from a microscopic theory of glide driven by Peach-Koehler forces between dislocations using a simple closure approximation. The resulting theory is shown to form sharp dislocation walls in finite time, both with and without dislocation climb.
description: 5 pages, 3 figures
Simulating Multivariate Distributions with Sparse Data: A Kernal Density Smoothing Procedure
Creators: name: Lien, Gudbrand D.
name: Hardaker, J. Brian
name: Richardson, James W.
name: Lien, Gudbrand D.
name: Hardaker, J. Brian
name: Richardson, James W.
Publisher: name: Unknown
Year: 2006
Subjects: subject: Research Methods/ Statistical Methods
subject: stochastic simulation
subject: smoothing
subject: multivariate kernel estimator
subject: Parzen

description: Often analysts must conduct risk analysis based on a small number of observations. This paper describes and illustrates the use of a kernel density estimation procedure to smooth out irregularities in such a sparse data set for simulating univariate and multivariate probability distributions.
Probing the intergalactic turbulence with fast radio bursts
Creators: name: Xu, Siyao
name: Zhang, Bing
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The turbulence in the diffuse intergalactic medium (IGM) plays an important role in various astrophysical processes across cosmic time, but it is very challenging to constrain its statistical properties both observationally and numerically. Via the statistical analysis of turbulence along different sightlines toward a population of fast radio bursts (FRBs), we demonstrate that FRBs provide a unique tool to probe the intergalactic turbulence. We measure the structure function (SF) of dispersion measures (DMs) of FRBs to study the multi-scale electron density fluctuations induced by the intergalactic turbulence. The SF has a large amplitude and a Kolmogorov power-law scaling with angular separations, showing large and correlated DM fluctuations over a range of length scales. Given that the DMs of FRBs are IGM dominated, our result tentatively suggests that the intergalactic turbulence has a Kolmogorov power spectrum and an outer scale on the order of $100$ Mpc.
description: 6 pages, 5 figures, accepted for publication in The Astrophysical Journal Letters
An Overdensity of Lyman-alpha Emitters at Redshift z=5.7 near the Hubble Ultra Deep Field
Creators: name: Wang, J. X.
name: Malhotra, S.
name: Rhoads, J. E.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have identified an obvious and strong large scale structure at redshift z=5.75 in a wide (31 by 33 arcminute) field, narrowband survey of the Chandra Deep Field South region. This structure is traced by 17 candidate Lyman alpha emitters, among which 12 are found in an 823nm filter (corresponding to Lyman alpha at z=5.77 +- 0.03) and 5 in an 815nm image (z=5.70 +- 0.03). The Lyman alpha emitters in both redshift bins are concentrated in one quadrant of the field. The Hubble Ultra Deep Field, Chandra Deep Field South, and GOODS-South fields all lie near the edge of this overdense region. Our results are consistent with reports of an overdensity in the UDF region at z=5.9. This structure is the highest redshift overdensity found so far.
description: 12 pages, AASTeX. Submitted to ApJ Letters, and revised in response to referee's comments
Low energy states of a semiflexible polymer chain with attraction and the whip-toroid transitions
Creators: name: Ishimoto, Yukitaka
name: Kikuchi, Norio
Publisher: name: arXiv
Year: 2005
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Biomolecules (q-bio.BM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Based on our previous paper [cond-mat/0507477], we establish a general model for the whip-toroid transitions of a semiflexible homopolymer chain using the path integral method and the O(3) nonlinear sigma model on a line segment with the local inextensibility constraint. We exactly solve the energy levels of classical solutions, and show that some of its classical configurations exhibit toroidal forms, and the system has phase transitions from a whip to toroidal states with a conformation parameter $c=\frac{W}{2 l} (\frac{L}{2π})^2$. We also discuss the stability of the toroid states and propose the low-energy effective Green function. Finally, with the finite size effect on the toroid states, predicted toroidal properties are successfully compared to experimental results of DNA condensation.
description: final version: RevTeX4 double column, 15 pages, 6 figures (colour), some typos fixed, to appear in Journal of Chemical Physics
Pseudopotential method for higher partial wave scattering
Creators: name: Idziaszek, Zbigniew
name: Calarco, Tommaso
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a zero-range pseudopotential applicable for all partial wave interactions between neutral atoms. For p- and d-waves we derive effective pseudopotentials, which are useful for problems involving anisotropic external potentials. Finally, we consider two nontrivial applications of the p-wave pseudopotential: we solve analytically the problem of two interacting spin-polarized fermions confined in a harmonic trap, and analyze the scattering of p-wave interacting particles in a quasi-two-dimensional system.
description: RevTeX, 4 pages, 2 figures; v2: references added
EDUCATION WAQF: AN ALTERNATIVE FINANCING OF ISLAMIC EDUCATION TODAY
Creators: name: Dr. Suhendri, M.A.
Publisher: name: figshare
Year: 2020
Subjects: Education

description: Management of education requires not small amount of funding.Starting from funding for teachers and students to guarantee the availability ofinfrastructure. For these conditions, waqf is considered as an alternativesupport and guarantee of the availability of financing referred to. Waqf is one ofthe potential sources of Islamic finance for Muslims. Waqf is a treasure of thepeople which can be used by all and for all time. Waqf can cope with the cost ofeducation in the future. If the cost of education can be overcome by funds raisedfrom waqf, Islamic education will be better in the future because from thehistorical point of view it has been exposed.
1/J^2 corrections to BMN energies from the quantum long range Landau-Lifshitz model
Creators: name: Minahan, J. A.
name: Tirziu, A.
name: Tseytlin, A. A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In a previous paper (hep-th/0509071), it was shown that quantum 1/J corrections to the BMN spectrum in an effective Landau-Lifshitz (LL) model match with the results from the one-loop gauge theory, provided one chooses an appropriate regularization. In this paper we continue this study for the conjectured Bethe ansatz for the long range spin chain representing perturbative planar N=4 Super Yang-Mills in the SU(2) sector, and the ``quantum string" Bethe ansatz for its string dual. The comparison is carried out for corrections to BMN energies up to 3rd order in the effective expansion parameter $\tl=λ/J^2$. After determining the ``gauge-theory'' LL action to order $\tl^3$, which is accomplished indirectly by fixing the coefficients in the LL action so that the energies of circular strings match with the energies found using the Bethe ansatz, we find perfect agreement. We interpret this as further support for an underlying integrability of the system. We then consider the ``string-theory'' LL action which is a limit of the classical string action representing fast string motion on an S^3 subspace of S^5 and compare the resulting $\tl^3/J^2$ corrections to the prediction of the ``string'' Bethe ansatz. As in the gauge case, we find precise matching. This indicates that the LL Hamiltonian supplemented with a normal ordering prescription and zeta-function regularization reproduces the full superstring result for the $1/J^2$ corrections, and also signifies that the string Bethe ansatz does describe the quantum BMN string spectrum to order $1/J^2$. We also comment on using the quantum LL approach to determine the non-analytic contributions in $λ$ that are behind the strong to weak coupling interpolation between the string and gauge results.
description: 36 pages, v2: new Appendix C on non-analytic terms in the circular solution example added, v3: typos corrected
Dynamical and static solutions to $R=0$-scalar-tensor theory
Creators: name: Azreg-Aïnou, Mustapha
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We consider the most cosmologically interesting and relevant case of scalar-tensor theory (STT) and derive new normal and phantom, dynamical and static, solutions. We determine the Bianchi I Kasner exponents and show that the dynamical solutions are heteroclinic orbits connecting two singularities. Approaching the singularities, a purely transverse expansion (no radial expansion or collapse) may occur.
description: 7 twocolumn pages
Household's Choice of Fuelwood Source in Malawi: A Multinomial Probit Analysis
Creators: name: Jumbe, Charles B.L.
name: Angelsen, Arild
name: Jumbe, Charles B.L.
name: Angelsen, Arild
Publisher: name: Unknown
Year: 2006
Subjects: Resource /Energy Economics and Policy

description: This paper addresses the following question: What determines household's choice of fuelwood collection source? We address this question by estimating the multinomial probit model using survey data for households surrounding Chimaliro and Liwonde forest reserves in Malawi. After controlling for heterogeneity among households, we find strong substitution across fuelwood sources. Attributes of the fuelwood sources (size and species composition) and distance to them are the most important determinants of fuelwood choice. Further results show that customary forests generate environmental benefits by reducing pressure on both plantation forests and forest reserves. These findings support the need to focus more on community forests in national forest policies, and to strengthen community-based institutions to manage these forests.
Pathways Into and Out of Poverty and the Role of Livestock in the Peruvian Andes
Creators: name: Kristjanson, Patricia
name: Krishna, Anirudh
name: Radeny, Maren
name: Kuan, Judith
name: Kristjanson, Patricia
name: Krishna, Anirudh
name: Radeny, Maren
name: Kuan, Judith
Publisher: name: Unknown
Year: 2006
Subjects: subject: Food Security and Poverty
subject: Livestock Production/Industries
subject: participatory research
subject: poverty
subject: Stages of Progress
subject: livestock
subject: livelihoods

description: In many rural areas, livestock are a critical asset for poor households, acting as a bank account, insurance policy and a source of income. Research methods leading to a better understanding of the role of livestock in household poverty dynamics are scarce, however, and are needed for better formulation of targeted pro-poor policies and interventions in regions where livestock are a key element of rural livelihood strategies. We utilized multiple methods, including Stages of Progress and household surveys, giving us a combination of qualitative and quantitative results. We examined how, over the last 10 and 25 years, households have moved into and out of poverty in 40 rural communities in two different highland regions of Peru, and explored in-depth the reasons for those movements. We also examined the role played in these movements by different livestock assets and strategies. We found significant numbers of households escaping poverty at the same time many are falling into poverty in both regions, and the reasons for escape differ from the reasons for decline. Livestock played a primary role in household poverty escapes in one of the study regions but not the other. Livestock strategies that have helped many households escape poverty also differ by region. Thus regionally-differentiated livestock-related poverty reduction efforts are needed. This combination of methods enables us to ascertain these critical cross-regional differences and can contribute to better targeted livestock-related research and development strategies and policies, not only in Peru, but in other regions where similar livelihood strategies are being pursued.
OneFlorida Certified Database 11/22/2021
Creators: name: Weinbrenner, Donald
name: Hunter, Catherine
name: Kidder, Beth
name: Robinson, Temple
name: Harris, Cynthia
name: Jones, Carrie
name: Green, Leon
name: Rogers, Brant
name: Smith, Eric
name: Mandal, Prabir
name: Reams, Renee
name: Cavicchia, Philip
name: Jordan, Melissa
name: Burness, Laura
name: Essner, Rebecca
name: Bitterman, Duke
name: Carlson, Todd
name: Chandran, Haneesh
name: Assiaidi, Ahmed
name: Hebert-Solares, Michele
name: McCain, Lance
name: Mitchell, Susan
name: Robinson, Patricia
name: Shrivalle, Katelynn
name: Smith, Steven
name: Durant, TaWanda
name: Eden, Joni
name: Joyce, Jeffrey
name: McDonnell, Grant
name: O'Neal, Donna
name: Carretta, Henry
name: Martinez, Joel
name: Moya, Keiser
name: Paul, Ludmilla
name: Quintana, Carlos
name: Frase, Alison
name: DeLeon, Veronica
name: Desrouleaux, Dorice
name: McCafferty, Jennifer
name: Moy, Pedro
name: Perez, Michael
name: Reddy, Raj
name: Sanchez, Maylee
name: Salyakina, Daria
name: Senior, Jerome
name: Taylor, Thomas
name: Nadglowski, Joseph
name: Candelario, Jorge L.
name: Mohr, Deanna
name: Ramirez, Gabriela
name: Walker, Kathleen
name: Barfiled, Chris
name: Blair, Cynthia
name: Herman, Kristin
name: Ladle, Devin
name: Moore, Mary
name: Thomas, Richard
name: Watson, Dean
name: Williams, Nancy
name: Baralt, Claire
name: Bell, Debora J
name: Bian, Jiang
name: Bottini, Tina
name: Boyd, Erica L
name: Byrne, Barry J
name: Chisholm, TaJuana L
name: Carek, Peter J
name: Cottler, Linda B
name: Deason, Dick
name: DeHoff, Rhonda Marsha
name: Enani, Mahmoud
name: Evans, Christy M
name: Frening, Debbie
name: JR, Thomas J George,
name: Gramig, Lavina L
name: Gutter, Michael S
name: Handberg, Eileen Mary
name: Hogan, William
name: Ilavala, Neeharika
name: Janicke, David
name: Jones, Ross
name: Krieger, Janice
name: Lepanto, Rachel L
name: Lipori, Gigi
name: Loiacono, Alex
name: Magoc, Tanja
name: Manini, Lizabeth M
name: Markham, Merry Jennifer
name: Marsik, Matt
name: Shaw, Katie
name: McMichael, Barbara C
name: Millay, Tamara Ann
name: Nelson, David R
name: Pepine, Carl J
name: Ranka, Deepa
name: Rodriguez, Lylly F
name: Schmidt, Erik
name: Shenkman, Elizabeth Ann
name: Smith, Myra
name: Vogtle, Candice
name: Weaver, Michael
name: White, Sonya
name: Xu, Howard
name: Bassols-Marin, Carrie
name: Bookman, Richard
name: Carrasquillo, Olveen
name: Dominguez, Eliana
name: Giobio, Marie
name: Jayaweera, Dushyantha
name: Dominguez, Sheela
name: Puram, Deepthi
name: Ransford, Daru
name: Tsinoremas, Nick
name: Anderson, Matthew
name: Brownlee, William
name: Badal, Michael
name: Patel, Nishit
name: Morris, Sherry
Publisher: name: figshare
Year: 2021
Subjects: subject: 111711 Health Information Systems (incl. Surveillance)
subject: FOS: Health sciences

description: OneFlorida certified database as of 11/22/2021. Contains data from 01/01/2012 through 07/31/2021.
Uso de plasma rico em plaquetas para tratamento de artroses avançada em idosos
Creators: name: Lisandro Caron Lambert
Publisher: name: Jornal Latino Americano de Terapia Celular e Medicina Integrativa Socell
Year: 2025
Subjects: Plasma rico em plaquetas
Artrose
Qualidade de vida

description: A artrose é uma doença de alta prevalência especialmente na população de idosos, possui diversas etiologias e é de difícil tratamento. A busca por tratamentos minimamente invasivos tem-se tornado um desafio para  a comunidade médica. O plasma rico em plaquetas (PRP) tem sido uma opção eficaz, custo-efetiva e com baixos riscos aos pacientes, por ser um produto autólogo e também por poder ser utilizado em pacientes com alto risco cirúrgico. Objetivo:  avaliar o uso do PRP no tratamento das artroses avançada de joelho. Metodologia: estudo clínico prospectivo multicêntrico e de braço único que avaliou 68 pacientes e 106 joelhos com artrose graus 3 e 4. Estudo aprovado pelo Comitê de Ética da Socell CAAE 770323240000.0317. Foram utilizados os testes t pareado e Wilcoxon. Resultados: Em todos os joelhos tratados com PRP, houve melhora da dor avaliada pela escala de EVA (7,95 versus 0,97) p < 0,001 e Womac para dor (36,5 para 7,03) p<0,001; rigidez (20 para 4,03) p<0,001 e função física (24,82 para 9,6) p<0,001. Discussão: O PRP é uma técnica segura eficaz de baixo custo e reduz significativamente  a dor do paciente e também restaura a função do joelho no seguimento de um ano. Conclusão: O PRP reduz a dor e restaura a função do joelho em pacientes com artrose avançada
The Reionization History and Early Metal Enrichment inferred from the Gamma-Ray Burst Rate
Creators: name: Murakami, T.
name: Yonetoku, D.
name: Umemura, M.
name: Matsubayashi, T.
name: Yamazaki, R.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Based on the gamma-ray burst (GRB) event rate at redshifts of $4 \leq z \leq 12$, which is assessed by the spectral peak energy-to-luminosity relation recently found by Yonetoku et al., we observationally derive the star formation rate (SFR) for Pop III stars in a high redshift universe. As a result, we find that Pop III stars could form continuously at $4 \leq z \leq 12$. Using the derived Pop III SFR, we attempt to estimate the ultraviolet (UV) photon emission rate at $7 \leq z \leq 12$ in which redshift range no observational information has been hitherto obtained on ionizing radiation intensity. We find that the UV emissivity at $7 \leq z \leq 12$ can make a noticeable contribution to the early reionization. The maximal emissivity is higher than the level required to keep ionizing the intergalactic matter at $7 \leq z \leq 12$. However, if the escape fraction of ionizing photons from Pop III objects is smaller than 10%, then the IGM can be neutralized at some redshift, which may lead to the double reionization. As for the enrichment, the ejection of all metals synthesized in Pop III objects is marginally consistent with the IGM metallicity, although the confinement of metals in Pop III objects can reduce the enrichment significantly.
description: 12 pages, 2 figures, ApJL accepted
Freyella Perrier 1885
Creators: name: Zhang, Ruiyan
name: Zhou, Yadong
name: Mao, Jingwen
name: Wang, Chunsheng
name: Zhang, Dongsheng
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Echinodermata
Asteroidea
Brisingida
Freyellidae
Freyella

description: GenusFreyellaPerrier, 1885
Type species.
Freyella spinosa Perrier, 1885, now regarded as a synonym of Freyella elegans (Verrill, 1884).
Diagnosis.
Arms 6–15. Papulae absent. One pair of gonads on each arm. The first pair of inferomarginal plates not in contact with the odontophore. Inferomarginal plates generally correspond to every 2 nd adambulacral plate beyond genital area. Abactinal arm in genital region covered with pavement of spinate plates.
description: Published as part of Zhang, Ruiyan, Zhou, Yadong, Mao, Jingwen, Wang, Chunsheng & Zhang, Dongsheng, 2025, Hidden diversity of Freyastera (Asteroidea, Brisingida, Freyellidae) at great depth: Description of new species and remarks on species boundaries, pp. 735-760 in Zoosystematics and Evolution 101 (2) on pages 735-760, DOI: 10.3897/zse.101.144918
Upper critical field from normal state fluctuations in Bi$_2$Sr$_2$CuO$_{6+δ}$
Creators: name: Bouquet, F.
name: Fruchter, L.
name: Sfar, I.
name: Li, Z. Z.
name: Raffy, H.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The in-plane magnetoresistance of an epitaxial Bi$_2$Sr$_2$CuO$_{6+δ}$ thin film was systematically investigated as a function of doping, above $T_c$. The orbital magnetoconductance is used to extract the crossover field line $H_{c2}^*(T)$ in the fluctuation regime. This field is found in good agreement with the upper critical field obtained from resistivity data below $T_c$, and exhibits a similar upward curvature, thus pointing toward the existence of a critical correlation length. The consequences regarding the nature of the resistive transition are discussed.
Accelerating Solitons
Creators: name: Melnikov, Ilarion V.
name: Papageorgakis, Constantinos
name: Royston, Andrew B.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present the saddle-point approximation for the effective Hamiltonian of the quantum kink in two-dimensional linear sigma models to all orders in the time-derivative expansion. We show how the effective Hamiltonian can be used to obtain semiclassical soliton form factors, valid at momentum transfers of order the soliton mass. Explicit results, however, hinge on finding an explicit solution to a new wave-like partial differential equation, with a time-dependent velocity and a forcing term that depend on the solution. In the limit of small momentum transfer, the effective Hamiltonian reduces to the expected form, namely H = (P^2 + M^2)^(1/2), where M is the one-loop corrected soliton mass, and soliton form factors are given in terms of Fourier transforms of the corresponding classical profiles.
description: 52 pages, 1 figure
Does Firm Size Matter? Evidence on the Impact of Liquidity Constraints of Firm Investment Behavior in Germany
Creators: name: Audretsch, David B.
name: Elston, Julie Ann
name: Audretsch, David B.
name: Elston, Julie Ann
Publisher: name: Unknown
Year: 2000
Subjects: Financial Economics

description: This paper examines the link between liquidity constraints and investment behavior for German firms of different sizes from 1970 to 1986. Results indicate that medium sized firms appear to be more liquidity constrained in their investment behavior than either the smallest or largest firms in the study, suggesting that the unique German infrastructure designed to assist the small firm has indeed succeeded in alleviating, to some degree, such liquidity constraints. Findings also support the hypothesis that the emerging competition and internationalism which characterized the German financial markets in the 1980's, have been improving access to capital for some groups of firms. Dieser Beitrag untersucht die Beziehung zwischen Liquiditätsbeschränkungen und Investitionsverhalten deutscher Unternehmen unterschiedlicher Größen im Zeitraum 1970 bis 1986. Die Ergebnisse deuten darauf hin, dass das Investitionsverhalten mittlerer Unternehmen stärker von der Liquiditätsseite her beschränkt ist als das der in der Untersuchung berücksichtigten kleinen und großen Unternehmen. Dies spricht dafür, dass die besondere deutsche Infrastruktur, die auf eine Unterstützung kleiner Unternehmen ausgerichtet ist, derartige Liquiditätsbeschränkungen mit Erfolg in gewissem Maße gelockert hat. Die Ergebnisse unterstützen auch die Hypothese, dass der stärkere Wettbewerb und die Internationalisierung, die die deutschen Finanzmärkte in den achtziger Jahren kennzeichneten, einigen Gruppen von Unternehmen den Zugang zu Kapital verbesserten.
Screening away the $H_0$ tension
Creators: name: Jimenez, Jose Beltran
name: Bettoni, Dario
name: Brax, Philippe
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: This Essay explores consequences of a dark non-linear electromagnetic sector in a Universe with a net dark charge for matter. The cosmological dynamics can be described by a Lemaître model and understood thanks to a screening mechanism driven by the electromagnetic non-linearities that suppress the dark force on small scales. Only at low redshift, when the screening scale enters the Hubble horizon, do cosmological structures commence to feel the dark repulsion. This repulsive force enhances the local value of the Hubble constant, thus providing a promising scenario for solving the Hubble tension. Remarkably, the dark electromagnetic interaction can have a crucial impact on peculiar velocities, i.e. introducing a bias in their reconstruction methods, and having the potential to explain the presence of a dark flow.
description: 8 pages, 2 Figures. Accepted in IJMPD. Honorable mention in the Gravity Research Foundation 2020 Awards for Essays on Gravitation
[Letter from Ingebrigt Severin Hagen]
Creators: name: Hagen, Ingebrigt Severin
Publisher: name: Unknown
Year: 1891

description: Expresses congratulations on the post. Next years budget will include money for office equipment for you and a travel grant. Please tell me what instruments you need and how much they cost.
description: Handwritten notes on the letter about the costs of travel and equipment.
Quantum Critical Point of Itinerant Antiferromagnet in Heavy Fermion
Creators: name: Kadowaki, Hiroaki
name: Tabata, Yoshikazu
name: Sato, Masugu
name: Aso, Naofumi
name: Raymond, Stephane
name: Kawarazaki, Shuzo
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A quantum critical point (QCP) of the heavy fermion Ce(Ru_{1-x}Rh_x)_2Si_2 (x = 0, 0.03) has been studied by single-crystalline neutron scattering. By accurately measuring the dynamical susceptibility at the antiferromagnetic wave vector k_3 = 0.35 c^*, we have shown that the energy width Gamma(k_3), i.e., inverse correlation time, depends on temperature as Gamma(k_3) = c_1 + c_2 T^{3/2 +- 0.1}, where c_1 and c_2 are x dependent constants, in a low temperature range. This critical exponent 3/2 +- 0.1 proves that the QCP is controlled by that of the itinerant antiferromagnet.
description: 4 pages, 3 figures
Liberalisation of Environmental Goods and Services and Climate Change
Creators: name: Iturregui, Patricia
name: Dutschke, Michael
name: Iturregui, Patricia
name: Dutschke, Michael
Publisher: name: Unknown
Year: 2005
Subjects: subject: Environmental Economics and Policy
subject: WTO and UNFCCC
subject: liberalization of environmental goods and services
subject: air pollution and climate

description: This paper attempts to show how WTO negotiations on liberalisation of environmental goods and services can have a negative or positive impact on the international climate change policy depending on the outcome of the Doha Mandate paragraph 31 debates. Certainly there has been no significant progress on the definition or classification of environmental goods and services given the wide spectrum of positions. However, the size of the environmental market is not little and a pragmatic approach for negotiations can be to reduce the issue by parts in problem areas being one of them air pollution and climate. In order to succeed in the task some conditions must be achieved, namely balancing interests from OECD and non OECD countries, identification of a list of key goods and services, tackling barriers to trade and avoiding "pollution transfer".
[Letter from George William Traill]
Creators: name: Traill, George William
Publisher: name: Unknown
Year: 1891
Subjects: Kjellman
Batters, Edward Arthur Lionel
Holmes, Edward
Morell

description: Found the following specimens on the Orkney Islands: Dictyosiphon hippuroides forma fragile, Kjellm., Rhodymenia palmata f. sarniensis, var tenuissima Kjellm., named by Kjellman, Ceramium rubrum, Corallina mediterranea, Callithamnion arbuscula, Calothrix pulvinata, Catenella opuntia, Chorda filum, Himanthalia lorea, Chaetomorpha cannabina and Pylaiella. Has managed to get a paper by Prof. Munch of Christiania on the subject of geographical explanations of local Scottish names occurring in the sagas. The British Museum has asked Mr. Batters to write a handbook of British marine algae for them alone (without Holmes). It is to be ready by the beginning of 1892. Asks to be sent one of the local newspapers.
A mélange of subduction ages: Constraints on the timescale of shear zone development and underplating at the subduction interface, Catalina Schist (CA, USA)
Creators: name: Harvey, Kayleigh
name: Walker, Stephanie
name: Starr, Paul
name: Penniston-Dorland, Sarah
name: Kohn, Matthew
name: Baxter, Ethan
Publisher: name: Digital Repository at the University of Maryland
Year: 2021
Subjects: garnet
geochronology
subduction
Catalina Schist
mélange

description: In compliance with AGU's journal, "Geochemistry, Geophysics, Geosystems" we have uploaded the data collected for this manuscript.
description: The presence of mélange at the subduction interface influences numerous geochemical and geophysical processes. However, the relationship between the timescales of mélange development, deformation, and resultant mass transport is poorly understood. Here, we use Sm-Nd garnet geochronology to elucidate the timing of peak metamorphism for five garnet amphibolite tectonic blocks from the amphibolite-facies mélange zone of the Catalina Schist (Santa Catalina Island, CA). Ages range from 108 to 115 Ma and do not appear to correlate with the peak metamorphic temperature recorded by each block (between 640 and 740°C). The lack of correlation between age and peak temperature favors the tectonic mixing model previously proposed for the unit. These ages overlap with previous estimates of 111 to 114 Ma for peak metamorphism of the mélange zone but are predominately younger than an estimate for the structurally lower coherent amphibolite unit of c. 115 Ma. Hornblende 40Ar/39Ar and U-Pb rutile ages from previous studies suggest that the unit rapidly cooled to 500-550°C before 105 Ma. Collectively, these results demonstrate that mélange formed over at least 7 Myr from 115 to 108 Ma and was followed by rapid cooling to 500-550°C between 108 and 105 Ma. The structural and chronologic relationship between the mélange zone and underlying lower-grade units indicates that the rapid cooling occurred in conjunction with underplating. The age discrepancy between the mélange zone and the underlying coherent amphibolite unit may indicate that the two units were juxtaposed either during or after the underplating event.
Exports and Productivity: A Survey of the Evidence from Firm Level Data
Creators: name: Wagner, Joachim
name: Wagner, Joachim
Publisher: name: Unknown
Year: 2005
Subjects: subject: International Relations/Trade
subject: Productivity Analysis
subject: Exports
subject: productivity
subject: literature survey
subject: micro data

description: While the role of exports in promoting growth in general, and productivity in particular, has been investigated empirically using aggregate data for countries and industries for a long time, only recently have comprehensive longitudinal data at the firm level been used to look at the extent and causes of productivity differentials between exporters and their counterparts which sell on the domestic market only. This paper surveys the empirical strategies applied, and the results produced, in 45 microeconometric studies with data from 33 countries that were published between 1995 and 2004. Details aside, exporters are found to be more productive than non-exporters, and the more productive firms self select into export markets, while exporting does not necessarily improve productivity.
von Neumann's Minimax Theorem for Continuous Quantum Games
Creators: name: Accardi, Luigi
name: Boukas, Andreas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Physics (math-ph)
subject: Functional Analysis (math.FA)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: Primary 46N10, 46N30, 81P16, 91A05, Secondary 81Q10, 91A40

description: The concept of a classical player, corresponding to a classical random variable, is extended to include quantum random variables in the form of self adjoint operators on infinite dimensional Hilbert space. A quantum version of Von Neumann's Minimax theorem for infinite dimensional (or continuous) games is proved.
Implementation of Grover's Quantum Search Algorithm in a Scalable System
Creators: name: Brickman, K. -A.
name: Haljan, P. C.
name: Lee, P. J.
name: Acton, M.
name: Deslauriers, L.
name: Monroe, C.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report the implementation of Grover's quantum search algorithm in the scalable system of trapped atomic ion quantum bits. Any one of four possible states of a two-qubit memory is marked, and following a single query of the search space, the marked element is successfully recovered with an average probability of 60(2)%. This exceeds the performance of any possible classical search algorithm, which can only succeed with a maximum average probability of 50%.
description: 4 pages, 3 figures, updated error discussion
Baumer, Iso: Glaubenszeugnisse algerischer Christen
Creators: name: Suermann, Harald
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 85 (2001): Oriens christianus, Band 85
Severe Fermi Surface Reconstruction at a Metamagnetic-Transition in Ca$_{2-x}$Sr$_x$RuO$_4$ (for $0.2 \leq x \leq 0.5$)
Creators: name: Balicas, L.
name: Nakatsuji, S.
name: Hall, D.
name: Lee, H.
name: Fisk, Z.
name: Maeno, Y.
name: Singh, D. J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report an electrical transport study in Ca$_{2-x}$Sr$_{x}$RuO$_4$ single crystals at high magnetic fields ($B$). For $x =0.2$, the Hall constant $R_{xy}$ decreases sharply at an anisotropic metamagnetic (MM) transition reaching its value for Sr$_2$RuO$_4$ at high fields. A sharp decrease in the $A$ coefficient of the resistivity $T^2$-term and a change in the structure of the angular magnetoresistance oscillations (AMRO) for $B$ rotating in the planes, confirms the reconstruction of the Fermi surface (FS). Our observations and LDA calculations indicate a strong dependence of the FS on the Ca concentration and suggest the coexistence of itinerant and localized electronic states in single layered ruthenates.
description: 5 pages, 4 figs
Dynamical Kosterlitz-Thouless Theory for Two-Dimensional Ultracold Atomic Gases
Creators: name: Wu, Zhigang
name: Zhang, Shizhong
name: Zhai, Hui
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: In this letter we develop a theory for the first and second sound in a two-dimensional atomic superfluid across the superfluid transition based on the dynamic Koterlitz-Thouless theory. We employ a set of modified two-fluid hydrodynamic equations which incorporate the dynamics of the quantised vortices, rather than the conventional ones for a three-dimensional superfluid. As far as the sound dispersion equation is concerned, the modification is essentially equivalent to replacing the static superfluid density with a frequency dependent one, renormalised by the frequency dependent "dielectric constant" of the vortices. This theory has two direct consequences. First, because the renormalised superfluid density at finite frequencies does not display discontinuity across the superfluid transition, in contrast to the static superfluid density, the sound velocities vary smoothly across the transition. Second, the theory includes dissipation due to free vortices, and thus naturally describes the sound-to-diffusion crossover for the second sound in the normal phase. With only one fitting parameter, our theory gives a perfect agreement with the experimental measurements of sound velocities across the transition, as well as the quality factor in the vicinity of the transition. The predictions from this theory can be further verified by future experiments.
description: 11 pages, 4 figures
title: Evolutionary Origins of DNA Repair Pathways: Role of Oxygen Catastrophe in the Emergence of DNA Glycosylases
Creators: name: Prorok, Paulina
name: Grin, Inga R.
name: Matkarimov, Bakhyt T.
name: Ishchenko, Alexander A.
name: Laval, Jacques
name: Zharkov, Dmitry O.
name: Saparbaev, Murat
Publisher: name: MDPI
Year: 2024

description: It was proposed that the last universal common ancestor (LUCA) evolved under high temperatures in an oxygen-free environment, similar to those found in deep-sea vents and on volcanic slopes. Therefore, spontaneous DNA decay, such as base loss and cytosine deamination, was the major factor affecting LUCA’s genome integrity. Cosmic radiation due to Earth’s weak magnetic field and alkylating metabolic radicals added to these threats. Here, we propose that ancient forms of life had only two distinct repair mechanisms: versatile apurinic/apyrimidinic (AP) endonucleases to cope with both AP sites and deaminated residues, and enzymes catalyzing the direct reversal of UV and alkylation damage. The absence of uracil–DNA N-glycosylases in some Archaea, together with the presence of an AP endonuclease, which can cleave uracil-containing DNA, suggests that the AP endonuclease-initiated nucleotide incision repair (NIR) pathway evolved independently from DNA glycosylase-mediated base excision repair. NIR may be a relic that appeared in an early thermophilic ancestor to counteract spontaneous DNA damage. We hypothesize that a rise in the oxygen level in the Earth’s atmosphere ~2 Ga triggered the narrow specialization of AP endonucleases and DNA glycosylases to cope efficiently with a widened array of oxidative base damage and complex DNA lesions.
Universality in Incompressible Active Fluid: Effect of Non-local Shear Stress
Creators: name: Skultety, Viktor
name: Birnsteinova, Sarlota
name: Lucivjansky, Tomas
name: Honkonen, Juha
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Phase transitions in active fluids attracted significant attention within the last decades. Recent results show [L. Chen et al., New J. Phys. 17, 042002 (2015)] that an order-disorder phase transition in incompressible active fluids belongs to a new universality class. In this work, we further investigate this type of phase transition and focus on the effect of long-range interactions. This is achieved by introducing a non-local shear stress into the hydrodynamic description, which leads to superdiffusion of the velocity field, and can be viewed as a result of the active particles performing Levy walks. The universal properties in the critical region are derived by performing a perturbative renormalization group analysis of the corresponding response functional within the one-loop approximation. We show that the effect of non-local shear stress decreases the upper critical dimension of the model, and can lead to the irrelevance of the active fluid self-advection with the resulting model belonging to an unusual 'long-range Model A' universality class not reported before. Moreover, when the degree of non-locality is sufficiently high all non-linearities become irrelevant and the mean-field description is valid in any spatial dimension.
description: Accepted for publication in Phys. Rev. E
[Letter from Karl August Theodor Reinbold]
Creators: name: Reinbold, Karl August Theodor
Publisher: name: Unknown
Year: 1892

description: Has sent some algae. Information: Received some of the algae requested. Information: Will name an alga after himself, Ectocarpus reinboldii. Encloses the algae he is not able to identify and is uncertain about. Expresses willingness to prepare algae. Will try to send collections to Foslie.
Fast simulation of stabilizer circuits using a graph state representation
Creators: name: Anders, Simon
name: Briegel, Hans J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: According to the Gottesman-Knill theorem, a class of quantum circuits, namely the so-called stabilizer circuits, can be simulated efficiently on a classical computer. We introduce a new algorithm for this task, which is based on the graph-state formalism. It shows significant improvement in comparison to an existing algorithm, given by Gottesman and Aaronson, in terms of speed and of the number of qubits the simulator can handle. We also present an implementation.
description: v2: significantly improved presentation; accepted by PRA
A Currency Crisis in Europe? - The Europe's Common Currency and the New Accession Countries -
Creators: name: Krawczyk, Mariusz K.
name: Krawczyk, Mariusz K.
Publisher: name: Unknown
Year: 2004
Subjects: subject: Financial Economics
subject: EU enlargement
subject: monetary integration
subject: currency crisis
subject: asset substitution

description: The politically and legally complicated character of the EU Eastern Enlargement heavily influenced the conflict between the legal and economic rationality underlying the construction of the EMR-II. This makes the ERM-II vulnerable to currency crises and creates conditions for a widespread currency and asset substitution in the accession countries. As a result, the required participation of all accession countries in the ERM-II imposes unnecessary costs on the whole enlargement process. The costs could be avoided if the EU adopted a more flexible approach to the enlargement of its monetary union, allowing for an individual path of adopting the euro in each accession country depending on the country's economic conditions.
Collective photon routing improvement in a dissipative quantum emitter chain strongly coupled to a chiral waveguide QED ladder
Creators: name: Poudyal, Bibandhan
name: Mirza, Imran M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We examine the routing scheme of single photons in a one-dimensional periodic chain of two-level quantum emitters (QEs) strongly coupled to two waveguides in a ladder configuration. It is known that for a single-emitter chiral waveguide ladder setting, photons can be redirected from one waveguide to another with a $100\%$ probability (deterministically) provided the resonance condition is met and spontaneous emission is completely ignored. However, when the spontaneous emission is included the routing scheme becomes considerably imperfect. In this paper, we present a solution to this issue by considering a chain of QEs where in addition to the waveguide mediated interaction among emitters, a direct and infinitely long-ranged dipole-dipole interaction (DDI) is taken into account. We show that the collective effects arising from the strong DDI protect the routing scheme from spontaneous emission loss. In particular, we demonstrate that the router operation can be improved from $58\%$ to $95\%$ in a typical dissipative chiral light-matter interface consisting of nanowires modes strongly interacting with a linear chain of 30 quantum dots. With the recent experimental progress in chiral quantum optics, trapped QEs evanescently coupled to tapered nanofibers can serve as a platform for the experimental realization of this work.
description: 11 pages, 7 figures
Zwiększenie wydajności i konkurencyjności ekologicznej hodowli roślin.
Creators: name: Beata, Tatarowska
name: Jarosław, Plich
Publisher: name: Zenodo
Year: 2021

description: Poster presented at on-line Conference: PLANT PROTECTION CONFERENCE 61st Scientific Session of the Institute of Plant Protection – NRI "New plant protection strategies" 10-12 February 2021, Poland