cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Anomalies, Branes, and Currents
Creators: name: Cheung, Yeuk-Kwan E.
name: Yin, Zheng
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: When a D-brane wraps around a cycle of a curved manifold, the twisting of its normal bundle can induce chiral asymmetry in its worldvolume theory. We obtain the general form of the resulting anomalies for D-branes and their intersections. They are not cancelled among themselves, and the standard inflow mechanism does not apply at first sight because of their apparent lack of factorizability and the apparent vanishing of the corresponding inflow. We show however after taking into consideration the effects of the nontrivial topology of the normal bundles, the anomalies can be transformed into factorized forms and precisely cancelled by finite inflow from the Chern-Simons actions for the D-branes as long as the latter are well defined. We then consider examples in type II compactifications where the twisting of the normal bundles occurs and calculate the changes in the induced Ramond-Ramond charges on the D-branes.
description: 25 pages, 0 figure; latex 2.09. Typos corrected. A reference and a comment added. Final version for publication in Nuclear Physics B
Additional file 4 of Role of CD133 in human embryonic stem cell proliferation and teratoma formation
Creators: name: Wang, Hua
name: Gong, Peng
name: Li, Jie
name: Fu, Yudong
name: Zhou, Zhongcheng
name: Liu, Lin
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Developmental Biology
subject: Cancer
subject: Hematology
subject: Computational Biology

description: Additional file 4: Table S1. Primers for CAS9, over expression and gene expression analysis.
Machine learning using rapidity-mass matrices for event classification problems in HEP
Creators: name: Chekanov, S. V.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Supervised artificial neural networks with the rapidity-mass matrix (RMM) inputs were studied using several Monte Carlo event samples for various pp collision processes. The study shows the usability of this approach for general event classification problems. The proposed standardization of the ANN feature space can simplify searches for signatures of new physics at the LHC when using machine learning techniques. In particular, we illustrate how to improve signal-over-background ratios in searches for new physics, how to filter out Standard Model events for model-agnostic searches, and how to separate gluon and quark jets for Standard Model measurements.
description: 21 pages, 8 figures
Additional file 6 of Role of CD133 in human embryonic stem cell proliferation and teratoma formation
Creators: name: Wang, Hua
name: Gong, Peng
name: Li, Jie
name: Fu, Yudong
name: Zhou, Zhongcheng
name: Liu, Lin
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Developmental Biology
subject: Cancer
subject: Hematology
subject: Computational Biology

description: Additional file 6: Table S3. Pluripotency genes from RNA-seq.
Atomic Parity Violation, Leptoquarks, and Contact Interactions
Creators: name: Barger, V.
name: Cheung, Kingman
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The recent measurement of atomic parity violation in cesium atoms shows a $2.3σ$ deviation from the standard model prediction. We show that such an effect can be explained by four-fermion contact interactions with specific chiralities or by scalar leptoquarks which couple to the left-handed quarks. For a coupling of electromagnetic strength, the leptoquark mass is inferred to be 1.1 to 1.3 TeV. We also show that these solutions are consistent with all other low-energy and high-energy neutral-current data.
description: published version, some discussions added
THE MACROECONOMICS OF DELAYED EXCHANGE RATE UNIFICATION: THEORY AND EVIDENCE FROM TANZANIA
Creators: name: Kaufmann, Daniel
name: O'Connell, Stephen
name: Kaufmann, Daniel
name: O'Connell, Stephen
Publisher: name: Unknown
Year: 1996
Subjects: International Development

description: Parallel exchange rate markets have often been dismissed by authorities as a nuisance or as the domain of a small group of economic saboteurs. Taking Tanzania as a case study, we argue instead that such a market played a central macroeconomic role throughout the seventies and eighties. We provide a rigorous macro-economic analysis of the parallel foreign exchange market and its fiscal implications. First, the evolution of the parallel foreign exchange market in Tanzania from the mid-1960s to 1990 is investigated. This period stretches from the adoption of exchange controls to the macroeconomic collapse and subsequent reforms in the mid-to-late 1980s. A reduced form econometric equation (of a Dornbush stock-flow model type) indicates that both trade and financial portfolio factors were important in determining the parallel premium, with trade determinants dominating in the long run, as suggested by theory. In the second part of the paper, we investigate the fiscal impact of the parallel exchange rate premium, an issue emphasized in the literature on exchange-rate unification. We construct a counter-factual simulation of fiscal and balance-of-payments flows under alternative assumptions regarding the indexation of these flows to the parallel and official exchange rate. We find that a more aggressive move towards exchange rate unification would have already delivered a fiscal bonus by the mid-1980s. Accordingly, a unification of the exchange rate would have reduced monetary growth and inflationary pressures. Thus, contrary to conventional advice in much of Africa and other countries, the case of Tanzania illustrates that even from a purely fiscal implication standpoint there was no economic rationale for delaying a move towards convertibility.
Identification of blazar candidates behind Small and Large Magellanic Clouds
Creators: name: Żywucka, Natalia
name: Goyal, Arti
name: Jamrozy, Marek
name: Stawarz, Łukasz
name: Ostrowski, Michał
name: Kozłowski, Szymon
name: Udalski, Andrzej
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report the identification of blazar candidates behind the Magellanic Clouds. The objects were selected from the Magellanic Quasars Survey (MQS), which targeted the entire Large Magellanic Cloud (LMC) and 70\% of the Small Magellanic Cloud (SMC). Among the 758 MQS quasars and 898 of unidentified (featureless spectra) objects, we identified a sample of 44 blazar candidates, including 27 flat spectrum radio quasars and 17 BL Lacertae objects, respectively. All the blazar candidates from our sample were identified with respect to their radio, optical, and mid-infrared properties. The newly selected blazar candidates possess the long-term, multi-colour photometric data from the Optical Gravitational Lensing Experiment, multi-colour mid-infrared observations, and archival radio data for one frequency at least. In addition, for nine of them the radio polarization data are available. With such data, these objects can be used to study the physics behind the blazar variability detected in the optical and mid-infrared bands, as a tool to investigate magnetic field geometry of the LMC and SMC, and as an exemplary sample of point like sources most likely detectable in $γ$-ray range with the newly emerging Cherenkov Telescope Array.
description: 17 pages, 10 figures, accepted for publication in ApJ
Additional file 1 of Injectable stress relaxation gelatin-based hydrogels with positive surface charge for adsorption of aggrecan and facile cartilage tissue regeneration
Creators: name: Wang, Kai-Yang
name: Jin, Xiang-Yun
name: Ma, Yu-Hui
name: Cai, Wei-Jie
name: Xiao, Wei-Yuan
name: Li, Zhi-Wei
name: Qi, Xin
name: Ding, Jian
Publisher: name: figshare
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Physical Sciences not elsewhere classified
subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology

description: Additional file 1: Fig. S1. (A) Chemical structures of modified GelMA polymer,a-i represented H protons corresponding to 1HNMR spectrum. (B) 1H NMR spectra of Gel-EPL polymers with different EPL modification in D2O. (C) TG analysis indicating high stability of polymers above 300℃. (D) DSC curve of GelMA and modified GelMA polymers. (E) Degradation analysis of under enzymatic digestion with Collagenase Type II (0.2U/ml). (F) A demonstration of the injectability and moldability of GelMA -based hydrogels. Fig. S2. (A) Immunofluorescence staining Col II of chondrocytes with cultured within 3D Gel-EPL/B hydrogels over 1 and 3 days for demonstrating cell metabolic activity and stability of chondrocytes after the gel was irradiated with blue light (405nm) for 1min. (B-C) Proliferation of rBMSCs (C) and chondrocytes (D) cultured with hydrogels at the different time points was assessed by MTT assay.
On the value of $α_s$ from the analysis of the SLAC/BCDMS deep inelastic scattering data
Creators: name: Sergey, Alekhin
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We performed NLO QCD analysis of the nonsinglet part of the combined SLAC/BCDMS data on $F_2$ with the extraction of $α_s$ and high twist contribution. It was shown that the value of $α_s$ obtained in the analysis is sensitive to the statistical inference procedures dealing with systematic errors on the data. The fit with the complete account of point-to-point correlations of the data gave the value of $α_s(M_Z)=0.1180\pm0.0017 (68% C.L.)$, to be compared with the previously reported value of $α_s(M_Z)=0.113\pm0.003 (99% C.L.)$. This new value of $α_s$ is compatible with the LEP measurements and the world average. The high twist contribution being strongly anti-correlated with the value of $α_s$ became lower than it was previously reported.
description: 9 pages, LATEX, 2 figures (PS), report-no added, English improved, misprints corrected, minor changes of the text
Welterbestätte Island of Meroë, Sudan – Strategien zu Erfassung und Erhalt
Creators: name: Riedel, Alexandra
name: Bashir, Mahmoud Suliman
Publisher: name: ICOMOS – Hefte des Deutschen Nationalkomitees
Year: 2022

description: ICOMOS – Hefte des Deutschen Nationalkomitees, Bd. 79 (2021): ICOMOS – Hefte des Deutschen Nationalkomitees
GAPS IN THE HEISENBERG-ISING MODEL
Creators: name: Roemer, R. A.
name: Eckle, H. -P.
name: Sutherland, B.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We report on the closing of gaps in the ground state of the critical Heisenberg-Ising chain at momentum $π$. For half-filling, the gap closes at special values of the anisotropy $Δ= \cos(π/Q)$, $Q$ integer. We explain this behavior with the help of the Bethe Ansatz and show that the gap scales as a power of the system size with variable exponent depending on $Δ$. We use a finite-size analysis to calculate this exponent in the critical region, supplemented by perturbation theory at $Δ\sim 0$. For rational $1/r$ fillings, the gap is shown to be closed for {\em all} values of $Δ$ and the corresponding perturbation expansion in $Δ$ shows a remarkable cancellation of various diagrams.
description: 12 RevTeX pages + 4 figures upon request
Augmented Reality and AI for Medical Training Simulators
Creators: name: Researchscholar
Publisher: name: Zenodo
Year: 2025

description: The evolution of medical education has witnessed significant transformations with the integration of emergingtechnologies. Among the most transformative are Augmented Reality (AR) and Artificial Intelligence (AI), which together areredefining the landscape of medical training. AR creates immersive learning environments by overlaying digital informationonto the physical world, while AI adds an intelligent layer that adapts to learner needs, assesses performance, and offerspersonalized feedback. This paper explores the convergence of AR and AI in medical training simulators, detailing how thissynergy is reshaping anatomical learning, surgical skill acquisition, patient interaction scenarios, and emergency responsetraining. It discusses the pedagogical advantages, the technological architectures underpinning these systems, challenges inimplementation, and the future trajectory of intelligent simulation platforms. Through predictive analytics, adaptive interfaces,and real-time feedback, AR and AI are equipping medical students and professionals with the experiential knowledge andconfidence required in high-stakes clinical environments.
Parsec-scale radio structure of 14 Fanaroff-Riley type 0 radio galaxies
Creators: name: Cheng, X. -P.
name: An, T.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Recently a population of compact radio galaxies were classified as Fanaroff-Riley type 0 radio galaxies (FR 0s). The physical nature of FR 0s and the connection with the classical FR I and II galaxies are not currently well understood. Here, we report the radio properties of fourteen FR 0s on parsec (pc) scales derived from their very long baseline interferometry (VLBI) imaging observations. All sources show compact structures. Four sources show relativistic beaming with Doppler boosting factors ranging from 1.7 to 6. The brightness temperatures of the other ten are below the equilibrium limit. Jet proper motions are determined in two sources which have multiple epoch data, between 0.23 c and 0.49 c, implying mildly relativistic jet flow. Low-amplitude flux density variation is found in J0943+3614 over a time period of 10 years. No significant variability are detected in three other sources over time scales of a few years. The radio properties of the FR 0s inferred from the VLBI data resemble GHz-peaked spectrum or compact steep-spectrum sources. Moreover, the diversity of their relativistic beaming indicators (brightness temperature, variability, jet proper motion) also imply that FR 0s might not be a homogeneous population of radio sources. Detailed studies of the low-power FR 0 sources in the local Universe additionally offer a promising opportunity to understand their connection to the FR Is.
description: Accepted for publication in ApJ
On the Four-Dimensional Effective Action of Strongly Coupled Heterotic String Theory
Creators: name: Lukas, Andre
name: Ovrut, Burt A.
name: Waldram, Daniel
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The low-energy D=4, N=1 effective action of the strongly coupled heterotic string is explicitly computed by compactifying Horava-Witten theory on the deformed Calabi-Yau three-fold solution due to Witten. It is shown that, to order kappa^{2/3}, the Kahler potential is identical to that of the weakly coupled theory. Furthermore, the gauge kinetic functions are directly computed to order kappa^{4/3} and shown to receive a non-vanishing correction. Also, we compute gauge matter terms in the Kahler potential to the order kappa^{4/3} and find a nontrivial correction to the dilaton term. Part of those corrections arise from background fields that depend on the orbifold coordinate and are excited by four-dimensional gauge field source terms.
description: 40 pages, Latex, changes in references, error in factors corrected, typos removed
New constraints on the major neutron source in low-mass AGB stars
Creators: name: Liu, Nan
name: Gallino, Roberto
name: Cristallo, Sergio
name: Bisterzo, Sara
name: Davis, Andrew M.
name: Trappitsch, Reto
name: Nittler, Larry R.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We compare updated Torino postprocessing asymptotic giant branch (AGB) nucleosynthesis model calculations with isotopic compositions of mainstream SiC dust grains from low-mass AGB stars. Based on the data-model comparison, we provide new constraints on the major neutron source, 13C(α,n)16O in the He-intershell, for the s-process. We show that the literature Ni, Sr, and Ba grain data can only be consistently explained by the Torino model calculations that adopt the recently proposed magnetic-buoyancy-induced 13C-pocket. This observation provides strong support to the suggestion of deep mixing of H into the He-intershell at low 13C concentrations as a result of efficient transport of H through magnetic tubes.
description: ApJ, accepted
Supplemental Table 2: Models undertaken on subset with environmental and sociodemographic covariates (pre-pregnancy BMI, breast feeding duration and family income, smoking at 17 years old) to predict BMI at 17, 20 and 23 years old. All models included EEAA while none included IEAA. The coefficients for EEAA are shown in the table.
Creators: name: Rae-Chi Huang
Publisher: name: figshare
Year: 2018
Subjects: subject: 110201 Cardiology (incl. Cardiovascular Diseases)
subject: FOS: Clinical medicine
subject: 110306 Endocrinology
subject: 111706 Epidemiology
subject: FOS: Health sciences

description: Models undertaken to predict BMI at 17, 20 and 23 years old. All models included EEAA.
Envelope Model for Function-on-Function Linear Regression
Creators: name: Su, Zhihua
name: Li, Bing
name: Cook, Dennis
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Physiology
subject: Pharmacology
subject: Information Systems not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Cancer

description: The envelope model is a recently developed methodology for multivariate analysis that enhances estimation accuracy by exploiting the relation between the mean and eigenstructure of the covariance matrix. We extend the envelope model to function-on-function linear regression, where the response and the predictor are assumed to be random functions in Hilbert spaces. We use a double envelope structure to accommodate the eigenstructures of the covariance operators for both the predictor and the response. The central idea is to establish a one-to-one relation between the functional envelope model and the multivariate envelope model and estimate the latter using an existing method. We also developed the asymptotic theories, confidence and prediction bands, an order determination method along with its consistency, and a characterization of the efficiency gain by the proposed model. Simulation comparisons with the standard function-on-function regression and data applications show significant improvement by our method in terms of cross-validated prediction error. Supplementary materials for this article are available online.
Quantum Mechanics on S^n and Meron Solution
Creators: name: Ikemori, H.
name: Kitakado, S.
name: Nakatani, H.
name: Otsu, H.
name: Sato, T.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A particle in quantum mechanics on manifolds couples to the induced topological gauge field that characterises the possible inequivalent quantizations. For instance, the gauge potential induced on $S^2$ is that of a magnetic monopole located at the center of $S^2$. We find that the gauge potential induced on $S^3$ ($S^{2n+1}$) is that of a meron (generalized meron) also sitting at the center of $S^3$ ($S^{2n+1}$).
description: 8 pages, Latex
SNO: Predictions for Ten Measurable Quantities
Creators: name: Bahcall, John N.
name: Krastev, Plamen I.
name: Smirnov, Alexei Yu.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We calculate the range of predicted values for 10 quantities that will be measured by the Sudbury Neutrino Observatory (SNO). We use neutrino oscillation solutions (vacuum and MSW; active and sterile neutrinos) that are globally consistent with all available neutrino data and estimate realistic theoretical and experimental uncertainties. The neutral current to charged current double ratio is predicted to be more than 9 sigma from the no-oscillation solution for all of the currently favored neutrino oscillation solutions. The best-fit oscillation solutions predict a CC day-night rate difference between -0.1% and +12.5% and a NC day-night difference < 0.01%. We present also the predicted range for the first and the second moments of the charged current electron recoil energy spectrum, the charged current, the neutral current, and the neutrino-electron scattering rates, the seasonal dependence of the charged current rate, and the double ratio of neutrino-electron scattering rate to charged current rate.
description: Clarifications and one figure added; viewgraphs at http://www.sns.ias.edu/~jnb
Supplemental table 1: Associations between epigenetic age acceleration and environmental influences early in life and at 17 years.
Creators: name: Rae-Chi Huang
Publisher: name: figshare
Year: 2018
Subjects: subject: 110201 Cardiology (incl. Cardiovascular Diseases)
subject: FOS: Clinical medicine
subject: 110306 Endocrinology

description: Supplemental table 1: Associations between epigenetic age acceleration and environmental influences early in life and at 17 years.
STRUCTURAL BARRIERS TO TRADE IN AFRICA
Creators: name: Stern, Joseph
name: Gugerty, Mary
name: Stern, Joseph
name: Gugerty, Mary
Publisher: name: Unknown
Year: 1996
Subjects: International Development
Labor and Human Capital
Public Economics

description: The economic performance of Sub-Saharan Africa (SSA) over the past two decades has been disappointing. The initial explanation for this poor performance focussed on deficient macroeconomic policies. However a number of SSA countries have undertaken and sustained a reasonable measure of macroeconomic reform and still see no significant expansion in the growth of manufactured exports. This suggests that a stable, credible, and consistent macroeconomic environment may be a necessary but not sufficient condition for export growth. This paper reviews the literature dealing with other constraints, including poor infrastructure, lack of appropriate human capital, a failure to develop a variety of export support services, and the impact of an unresponsive civil service. We conclude that while there are clearly numerous structural barriers to exports in SSA, no systematic analysis has been undertaken that would assist policy-makers in determining which constraints are most important.
Multi-wavelength observations of a new redback millisecond pulsar candidate: 3FGL J0954.8-3948
Creators: name: Li, Kwan-Lok
name: Hou, Xian
name: Strader, Jay
name: Takata, Jumpei
name: Kong, Albert K. H.
name: Chomiuk, Laura
name: Swihart, Samuel J.
name: Hui, Chung Yue
name: Cheng, K. S.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present a multi-wavelength study of the unassociated Fermi-LAT source, 3FGL J0954.8-3948, which is likely the gamma-ray counterpart of a 9.3-hour binary in the field. With more than 9 years of Pass 8 LAT data, we updated the gamma-ray spectral properties and the LAT localization of the gamma-ray source. While the binary lies outside the cataloged 95% error ellipse, the optimized LAT ellipse is 0.1 degrees closer and encloses the binary. The system is likely spectrally hard in X-rays (photon index ~ 1.4) with orbital modulations detected in optical, UV, and possibly X-rays. A steep spectrum radio counterpart (spectral index ~ -1.6) is also found in the TIFR GMRT Sky Survey (TGSS), implying that it is a pulsar system. We obtained a series of SOAR and Gemini spectroscopic observations in 2017/2018, which show a low-mass secondary orbiting in a close circular orbit with K2 = 272 km/s under strong irradiation by the primary compact object. All the observations as well as the modelling of the X/gamma-ray high-energy emission suggest that 3FGL J0954.8-3948 is a redback millisecond pulsar in a rotation-powered state.
description: 10 pages, including 5 figures and 3 tables. Accepted for publication in ApJ
Lattice QCD and heavy quarks
Creators: name: Rosner, Jonathan L.
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Some interesting heavy-flavor questions are mentioned that may yield to the methods of lattice QCD. Special emphasis is placed on topics which arise in the discussion of CP violation in $B$ decays. Other subjects include quarkonium and light-quark systems and some potential applications outside QCD.
description: 14 pages, latex, 3 figures, uses espcrc2.sty, slight revisions
A new determinant for the $Q$-enumeration of alternating sign matrices
Creators: name: Aigner, Florian
Publisher: name: arXiv
Year: 2018
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: Fischer provided a new type of binomial determinant for the number of alternating sign matrices involving the third root of unity. In this paper we prove that her formula, when replacing the third root of unity by an indeterminate $q$, is actually the $(2+q+q^{-1})$-enumeration of alternating sign matrices. By evaluating a generalisation of this determinant we are able to reprove a conjecture of Mills, Robbins and Rumsey stating that the $Q$-enumeration is a product of two polynomials in $Q$. Further we provide a closed product formula for the generalised determinant in the 0-,1- 2- and 3-enumeration case, leading to a new proof of the $1$-,$2$- and $3$-enumeration of alternating sign matrices, and a factorisation in the $4$-enumeration case. Finally we relate the $1$-enumeration of our generalised determinant to the determinant evaluations of Ciucu, Eisenkölbl, Krattenthaler and Zare, which counts weighted cyclically symmetric lozenge tilings of a hexagon with a triangular hole and is a generalisation of a famous result by Andrews.
description: replaced with revised version
title: Social upgrading in the forest industries and the influencing factors
Creators: name: Salcu, Ana-Maria
Year: 2025

description: Diese Arbeit untersucht die Auswirkungen der Integration in globale Warenketten (GCC), der wirtschaftlichen Aufwertung, der Governance von Wertschöpfungsketten und von Netzwerken auf die soziale Aufwertung von Holzfällern im Kreis Alba, Rumänien. Die Studie zielt darauf ab zu bewerten, ob diese Faktoren die soziale Aufwertung beeinflussen und, wenn ja, wie sie die Arbeitsbedingungen der Beschäftigten verändern. Durch eine umfassende Literaturrecherche, Interviews mit verschiedenen Interessengruppen und eine Inhaltsanalyse zeigen die Ergebnisse, dass diese Faktoren zwar miteinander verknüpft sind, aber nicht alle zur sozialen Aufwertung der Arbeitnehmer in dieser Fallstudie beitragen. Für Beschäftigte in registrierten Unternehmen besteht ein klarer Zusammenhang zwischen der Legalisierung der Tätigkeiten, der Unternehmensgröße, dem Aufwertungspotenzial und der sozialen Aufwertung in Bezug auf formelle Beschäftigung und Einkommensstabilität. Für informelle Arbeitskräfte bleiben die Bedingungen jedoch schlecht, mit unregelmäßigem Einkommen und illegaler Beschäftigung. Die Legalisierung der Tätigkeiten wird als wichtiger wirtschaftlicher Schritt für die Zukunft betrachtet. Die Arbeit erörtert die zahlreichen Nuancen dieses Themas im Detail, einschließlich des potenziellen Einflusses des Möbelsektors auf die soziale Aufwertung von Holzfällern.
description: This thesis explores the impact of inclusion in global commodity chains (GCC), economic upgrading, value chain governance and networks on the social upgrading of wood logging workers in Alba County, Romania. The study aims to assess whether these factors influence social upgrading and, if so, how they affect worker conditions. Through a comprehensive literature review, interviews with multiple stakeholders, and content analysis, the findings reveal that while these factors are interconnected, not all contribute to the social upgrading of workers in this case study. For workers employed by registered companies there is a clear correlation between the legalization of operations, the scale of business and upgrading potential, and social upgrading in terms of formal employment and income stability. However, for informal workers, conditions remain poor, with irregular income and illegal employment, with the legalization of operations seen as a big economic future step. The thesis discusses the many nuances in detail, including the potential influence of the furniture sector on social upgrading for wood logging workers.
Motion of heavy particles coupled to fermionic and bosonic environments in one dimension
Creators: name: Caldeira, A. O.
name: Neto, A. H. Castro
Publisher: name: arXiv
Year: 1995
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: Making use of a simple unitary transformation we change the hamiltonian of a particle coupled to an one dimensional gas of bosons or fermions to a new form from which the many body degrees of freedom can be easily traced out. The effective dynamics of the particle allows us to compute its damping constant in terms of the reflection coefficient of the interaction potential and the occupation number of the environmental particles. We apply our results to a delta repulsive potential.
description: 28 pages, RevteX, 3 figures
N=2 Supergravity Lagrangians with Vector-Tensor Multiplets
Creators: name: Claus, P.
name: de Wit, B.
name: Faux, M.
name: Kleijn, B.
name: Siebelink, R.
name: Termonia, P.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss the coupling of vector-tensor multiplets to N=2 supergravity.
description: LaTeX, 28 pages
First experimental test of Bell inequalities performed using a non-maximally entangled state
Creators: name: Genovese, M.
name: Brida, G.
name: Novero, C.
name: Predazzi, E.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We report on the realisation of a new test of Bell inequalities using the superposition of type I parametric down conversion produced in two different non-linear crystals pumped by the same laser, but with different polarisation. The produced state is non-maximally entangled. We discuss the advantages and the possible developments of this configuration.
A large final-state interaction in the 0-0- decays of J/psi
Creators: name: Suzuki, M.
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In view of important implications in the B decay, the 0-0- decay modes of J/psi are analyzed with broken flavor SU(3) symmetry in search for long-distance final-state interactions. If we impose one mild theoretical constraint on the electromagnetic form factors, we find that a large phase difference of final-state interactions is strongly favored between the one-photon and the gluon decay amplitudes. Measurement of the π+π- and K+K- cross sections off the J/psi peak in e+e- annihilation can settle the issue without recourse to theory.
description: 9 pages with 1 eps figure in RevTex
Kelvin knots in superconducting state
Creators: name: Rybakov, Filipp N.
name: Garaud, Julien
name: Babaev, Egor
Publisher: name: arXiv
Year: 2018
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: High Energy Physics - Theory (hep-th)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: The failed "vortex-atoms" theory of matter by Kelvin and Tait had a profound impact on mathematics and physics. Building on the understanding of vorticity by Helmholtz, and observing stability of smoke rings, they hypothesised that elementary particles (at that time atoms) are indestructible knotted vortices in luminiferous aether: the hypothetical ideal fluid filling the universe. The vortex-atoms theory identified chemical elements as topologically different vortex knots, and matter was interpreted as bound states of these knotted vortices. This work initiated the field of knot theory in mathematics. It also influenced modern physics, where a close although incomplete analogy exists with the theory of superfluidity, which started with Onsager's and Feynman's introduction of quantum vortices. Indeed many macroscopic properties of superconductors and superfluids are indeed determined by vortex lines forming different "aggregate states", such as vortex crystals and liquids. While crucial importance of knots was understood for many physical systems in the recent years, there is no known physical realization of the central element of Kelvin theory: the stable particle-like vortex knot. Indeed, vortex loops and knots in superfluids and ordinary superconductors form as dynamical excitations and are unstable by Derrick theorem. This instability in fact dictates many of the universal macroscopic properties of superfluids. Here we show that there are superconducting states with principally different properties of the vorticity: where vortex knots are intrinsically stable. We demonstrate that such features should be realised near certain critical points, where the hydro-magneto-statics of superconducting states yields stables vortex knots which behave similar to those envisaged in Kelvin and Tait's theory of vortex-atoms in luminiferous aether.
Non-Relativistic Fermions Coupled to Transverse Gauge-Fields: The Single-Particle Green's Function in Arbitrary Dimension
Creators: name: Kopietz, Peter
Publisher: name: arXiv
Year: 1995
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We use a bosonization approach to calculate the single-particle Green's function $G ( {\bf{r}} , τ)$ of non-relativistic fermions coupled to transverse gauge-fields in arbitrary dimension $d$. We find that in $d>3$ transverse gauge-fields do not destroy the Fermi liquid, although for $d < 6$ the quasi-particle damping is anomalously large. For $d \rightarrow 3$ the quasi-particle residue vanishes as $Z \propto \exp [ - \frac{1}{2 π( d-3)} (\frac{ κ}{mc } )^2 ]$, where $κ$ is the Thomas-Fermi wave-vector, $m$ is the mass of the electrons, and $c$ is the velocity of the gauge-particle. In $d=3$ the system is a Luttinger liquid, with anomalous dimension $γ_{\bot} = \frac{1}{6 π} ( \frac{ κ}{mc} )^2$. For $d < 3$ we find that $G ({\bf{r}} , 0 )$ decays exponentially at large distances.
description: RevTex, no figures.
NNLO Unquenched Calculation of the b Quark Mass
Creators: name: Gimenez, V.
name: Giusti, L.
name: Martinelli, G.
name: Rapuano, F.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: By combining the first unquenched lattice computation of the B-meson binding energy and the two-loop contribution to the lattice HQET residual mass, we determine the (\bar{MS}) (b)-quark mass, (\bar{m}_{b}(\bar{m}_{b})). The inclusion of the two-loop corrections is essential to extract (\bar{m}_{b}(\bar{m}_{b})) with a precision of ({\cal O}(Λ^{2}_{QCD}/m_{b})), which is the uncertainty due to the renormalon singularities in the perturbative series of the residual mass. Our best estimate is (\bar{m}_{b}(\bar{m}_{b}) = (4.26 \pm 0.09) {\rm GeV}), where we have combined the different errors in quadrature. A detailed discussion of the systematic errors contributing to the final number is presented. Our results have been obtained on a sample of (60) lattices of size (24^{3}\times 40) at (β=5.6), using the Wilson action for light quarks and the lattice HQET for the (b) quark, at two values of the sea quark masses. The quark propagators have been computed using the unquenched links generated by the T(χ)L Collaboration.
description: 19 pages, 1 figure
Ensemble Kalman Inversion: A Derivative-Free Technique For Machine Learning Tasks
Creators: name: Kovachki, Nikola B.
name: Stuart, Andrew M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Machine Learning (cs.LG)
subject: Optimization and Control (math.OC)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: I.2.6
subject: 68T20, 65L09, 65K10, 49M15

description: The standard probabilistic perspective on machine learning gives rise to empirical risk-minimization tasks that are frequently solved by stochastic gradient descent (SGD) and variants thereof. We present a formulation of these tasks as classical inverse or filtering problems and, furthermore, we propose an efficient, gradient-free algorithm for finding a solution to these problems using ensemble Kalman inversion (EKI). Applications of our approach include offline and online supervised learning with deep neural networks, as well as graph-based semi-supervised learning. The essence of the EKI procedure is an ensemble based approximate gradient descent in which derivatives are replaced by differences from within the ensemble. We suggest several modifications to the basic method, derived from empirically successful heuristics developed in the context of SGD. Numerical results demonstrate wide applicability and robustness of the proposed algorithm.
description: 41 pages, 14 figures
Matter Creation via Vacuum Fluctuations in the Early Universe and Observed Ultra-High Energy Cosmic Ray Events
Creators: name: Kuzmin, V. A.
name: Tkachev, I. I.
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Cosmic rays of the highest energy, above the Greisen-Zatsepin-Kuzmin cut-off of the spectrum, may originate in decays of superheavy long-living X-particles. These particles may be produced in the early Universe from vacuum fluctuations during or after inflation and may constitute a considerable fraction of Cold Dark Matter. We calculate numerically their abundance for a wide range of models. X-particles are considered to be either bosons or fermions. Particles that are several times heavier than inflaton, m_inflaton \approx 10^{13} GeV, and were produced by this mechanism, can account for the critical mass in the Universe naturally. In some cases induced isocurvature density fluctuations can leave an imprint in anisotropy of cosmic microwave background radiation.
description: LaTeX, 9 pages
Approximating Annual Mean Incoming Solar Radiation
Creators: name: Nadeau, Alice
name: McGehee, Richard
Publisher: name: arXiv
Year: 2018
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We derive the Legendre series expansion for the insolation distribution on rapidly rotating planets as a function of sine of the latitude and the planet's obliquity. We give an explicit formula for the coefficients of this series as it depends on the obliquity and approximate the convergence rate. We determine the optimal truncation of the series for use in climate models and compare this approximation to other approximations in the literature.
description: 29 pages, 8 figures
STOLPER-SAMUELSON (LOST) IN THE TROPICS TRADE LIBERALIZATION AND WAGES IN COLOMBIA: 1976-1994
Creators: name: Robbins, Donald
name: Robbins, Donald
Publisher: name: Unknown
Year: 1996
Subjects: Institutional and Behavioral Economics
Labor and Human Capital

description: This paper examines the impacts of real devaluation, trade liberalization and the growing relative supply of skill on wage dispersion in Colombia's seven principal cities over 1976-1994. The Hecksher-Ohlin-Samuelson (HOS) framework predicts that while labor supply shifts and devaluation should not affect wage dispersion, trade liberalization should compress wages in LDC's. My findings differ: growth in the supply of skills lowers, and liberalization and real devaluation raise, wage dispersion. This is not due to failure of the HOS assumptions of factor-diversified trade or that Colombia is skilled relative to the world average. The data are consistent with non-HOS assumptions where devaluation and liberalization encourage capital and embodied technical flows.
On the Z_2 Monopole of Spin(10) Gauge Theories
Creators: name: Su, Wang-Chang
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: An "expanded" description is introduced to examine the spinor-monopole identification proposed by Strassler for four-dimensional $\cal N$ = 1 supersymmetric Spin(10) gauge theories with matter in F vector and N spinor representations. It is shown that a Z_2 monopole in the "expanded" theory is associated with massive spinors of the Spin(10) theory. For N=2, two spinor case, we confirm this identification by matching the transformation properties of the two theories under SU(2) flavor symmetry. However, for N $\ge$ 3, the transformation properties are not matched between the spinors and the monopole. This disagreement might be due to the fact that the SU(N) flavor symmetry of the Spin(10) theory is partially realized as an SU(2) symmetry in the "expanded" theory.
description: 16 pages, LaTex, no figure
Diffractive $J/ψ$ production through color-octet mechanism in resolved photon processes at HERA
Creators: name: Xu, Jia-Sheng
name: Peng, Hong-An
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We use the color-octet mechanism combined with the two gluon exchange model for the diffractive $J/ψ$ production in resolved photon processes. In the leading logarithmic approximation in QCD, we find that the diffractive $J/ψ$ production cross section is related to the off-diagonal gluon density of the proton, the gluon density of the photon and to the nonperturbative color-octet $^3 S_{1}^{(8)}$ matrix element of $J/ψ$. The cross section is found to be very sensitive to the gluon density of the photon. As a result, this process may provide a wide window for testing the two-gluon exchange model, studying the nature of hard diffractive factorization breaking and may be particularly useful in studying the gluon distribution of the photon. And it may also be a golden place to test the color-octet mechanism proposed by solving the $ψ'(J/ψ)$ surplus problem at the Tevatron.
description: Revtex, 10 pages, 4 PS figures
Supersymmetric Electrovacs In Gauged Supergravities
Creators: name: Cowdall, P. M.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that the D=6 SU(2) gauged supergravity of van Nieuwenhuizen et al, obtained by dimensional reduction of the D=7 topologically massive gauged supergravity and previously thought not to be dimensionally reducible, can be further reduced to five and four dimensions. On reduction to D=4 one recovers the special case of the SU(2)XSU(2) gauged supergravity of Freedman and Schwarz for which one of the SU(2) coupling constants vanishes. Previously known supersymmetric electrovacs of this model then imply new ground states in 7-D. We construct a supersymmetric electrovac solution of N=2 SU(2) gauged supergravity in 7-D. We also investigate the domain wall solutions of these theories and show they preserve a half of the supersymmetry.
description: 29 pages, TeX, no figures. Introduction and conclusion rewritten. New references added. Minor changes to all sections
Additional file 5: of Body weight, frailty, and chronic pain in older adults: a cross-sectional study
Creators: name: Chen, Cheng
name: Winterstein, Almut
name: Fillingim, Roger
name: Wei, Yu-Jung
Publisher: name: figshare
Year: 2019
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Biotechnology
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: Adjusted association between BMI and chronic pain in older adults who had no missing values on covariates of interest, overall and stratified by frailty (DOCX 14 kb)
Phase Modulators Based on High Mobility Ambipolar ReSe2 Field-Effect Transistors
Creators: name: Pradhan, Nihar R.
name: Garcia, Carlos
name: Isenberg, Bridget
name: Rhodes, Daniel
name: Feng, Simin
name: Memaran, Shahriar
name: Xin, Yan
name: McCreary, Amber
name: Walker, Angela R. Hight
name: Raeliarijaona, Aldo
name: Terrones, Humberto
name: Terrones, Mauricio
name: McGill, Stephen
name: Balicas, Luis
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We fabricated ambipolar field-effect transistors (FETs) from multi-layered triclinic ReSe2, mechanically exfoliated onto a SiO2 layer grown on p-doped Si. In contrast to previous reports on thin layers (~2 to 3 layers), we extract field-effect carrier mobilities in excess of 10^2 cm^2/Vs at room temperature in crystals with nearly ~10 atomic layers. These thicker FETs also show nearly zero threshold gate voltage for conduction and high ON to OFF current ratios when compared to the FETs built from thinner layers. We also demonstrate that it is possible to utilize this ambipolarity to fabricate logical elements or digital synthesizers. For instance, we demonstrate that one can produce simple, gate-voltage tunable phase modulators with the ability to shift the phase of the input signal by either 90^o or nearly 180^o. Given that it is possible to engineer these same elements with improved architectures, for example on h-BN in order to decrease the threshold gate voltage and increase the carrier mobilities, it is possible to improve their characteristics in order to engineer ultra-thin layered logic elements based on ReSe2.
description: Scientific Reports 2018
Sedimentation and Flow Through Porous Media: Simulating Dynamically Coupled Discrete and Continuum Phases
Creators: name: Schwarzer, Stefan
Publisher: name: arXiv
Year: 1995
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We describe a method to address efficiently problems of two-phase flow in the regime of low particle Reynolds number and negligible Brownian motion. One of the phases is an incompressible continuous fluid and the other a discrete particulate phase which we simulate by following the motion of single particles. Interactions between the phases are taken into account using locally defined drag forces. We apply our method to the problem of flow through random media at high porosity where we find good agreement to theoretical expectations for the functional dependence of the pressure drop on the solid volume fraction. We undertake further validations on systems undergoing gravity induced sedimentation.
description: 22 pages REVTEX, figures separately in uudecoded, compressed postscript format - alternatively e-mail 'stefan@pmmh.espci.fr' for hardcopies.