cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Confidence intervals for kernel density estimation
Creators: name: Fiorio, Carlo V.
name: Fiorio, Carlo V.
Publisher: name: Unknown
Year: 2004
Subjects: subject: Research Methods/ Statistical Methods
subject: asciker
subject: bsciker
subject: vkdensity
subject: kernel density asymptotic confidence intervals
subject: kernel density bootstrap confidence intervals
subject: asymptotic bias

description: This article describes asciker and bsciker, two programs that enrich the possibility for density analysis using Stata. asciker and bsciker compute asymptotic and bootstrap confidence intervals for kernel density estimation, respectively, based on the theory of kernel density confidence intervals estimation developed in Hall (1992b) and Horowitz (2001). asciker and bsciker allow several options and are compatible with Stata 7 and Stata 8, using the appropriate graphics engine under both versions.
Gomes, Pinharanda, Dom Manuel Martins Manso, Bispo do Funchal e da Guarda, Edição do Autor, Lisboa, 1996, 192 pp., 240 x 165.
Creators: name: Arieiro, José
Publisher: name: Theologica
Year: 2021

description: Theologica, v. 32 n. 2 (1997): Sobre algumas questões postas à Igreja. O Encontro de Graz e a questão ecuménica
From the help desk: Polynomial distributed lag models
Creators: name: McDowell, Allen
name: McDowell, Allen
Publisher: name: Unknown
Year: 2004
Subjects: subject: Research Methods/ Statistical Methods
subject: polynomial distributed lag
subject: Almon
subject: Lagrangian interpolation polynomials

description: Polynomial distributed lag models (PDLs) are finite-order distributed lag models with the impulse–response function constrained to lie on a polynomial of known degree. You can estimate the parameters of a PDL directly via constrained ordinary least squares, or you can derive a reduced form of the model via a linear transformation of the structural model, estimate the reduced-form parameters, and recover estimates of the structural parameters via an inverse linear transformation of the reduced-form parameter estimates. This article demonstrates both methods using Stata.
Leite, P. Fernando, S.J., Mártir de Cristo Rei. Beato Miguel Pro, col. «Testemunhas» 6, Editorial A. O., Braga, 1989, 156 pp., 210 x 150, ISBN 972-39-0398-9.
Creators: name: Coutinho, Jorge
Publisher: name: Theologica
Year: 2021

description: Theologica, v. 32 n. 2 (1997): Sobre algumas questões postas à Igreja. O Encontro de Graz e a questão ecuménica
The effects of an 8-week, pre-season training program on vertical jump, agility and anaerobic power in elite female basketball players
Creators: name: Bott, Carmen E.
Publisher: name: University of British Columbia
Year: 2010

description: The objectives of this study were to evaluate the effectiveness of an eight-week training program by comparing changes in four performance indicators: vertical jump, peak power, agility and anaerobic power. An additional objective was to monitor the adaptive process of each subject in the treatment group by quantifying the training stimulus and measuring these adaptation indicators: fatigue, stress, sleep quality and DOMS, via a daily training log. The treatment group, (n= 10) completed an eight-week pre-season plan, which emphasized agility, explosive power and anaerobic conditioning and followed an undulating periodization model. The control group, a college level team, (n = 9) participated in regular practice sessions only. Three repeated measurements were taken on the treatment group (baseline, at week 5 and at week 9) and two measurements were taken (baseline and week 9) on the control group. Tests administered to both groups were a vertical jump test, a T-test and an anaerobic speed test. A 2 x 4 MANOVA was conducted to measure performance changes over time with the treatment group. Statistical significance was set at α <. 05. Although statistical significance was only detected when comparing week 5 to week 9 (p=.041) the descriptive results showed the athlete's in the treatment group improved in all four performance indicators,. Follow-up univariate analysis confirmed that the agility scores were significantly better at week 9 (p=.009). It was also found that the once individual athlete's training logs were quantified, those who documented a maladaptive pattern also did not show improvements in performance. A multivariate two sample t-test was also performed to assess differences between the treatment group and the control group. No significance was found (p=.308). This study indicates that, although both groups demonstrated improvements in all four performance indicators, the treatment group's improvement is more noteworthy because they were initially closer to their biological ceiling. Also, the training log in combination with periodic performance testing, supports the hypothesis that these are excellent methods of monitoring an athlete's adaptive capacity and can provide rationale for declines in physical performance.
Cosmological quantum entanglement : A possible testbed for the existence of Kalb-Ramond field
Creators: name: Paul, Tanmoy
name: Banerjee, Narayan
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In the present paper, we explore the possible effects of a second rank antisymmetric tensor field, known as Kalb-Ramond (KR) field, on cosmological particle production as well as on quantum entanglement for a massive scalar field propagating in a four dimensional FRW spacetime evolves through a symmetric bounce. For this purpose, the scalar field is considered to be coupled with the KR field and also with the Ricci scalar via the term $\sim ξRΦ^2$ (with $ξ$ be the coupling). The presence of KR field spoils the conformal symmetry of a massless scalar field even for $ξ= 1/6$ in four dimensional context, which has interesting consequences on particle production and consequently on quantum entanglement as we will discuss. In particular, the presence of KR field in a FRW bouncing universe allows a greater particle production and consequently the upper bound of the entanglement entropy becomes larger in comparison to the case when the KR field is absent. This may provide an interesting testbed for the existence of Kalb-Ramond field in our universe.
description: CQG accepted
Defect structures in sine-Gordon-like models
Creators: name: Bazeia, D.
name: Losano, L.
name: Menezes, R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We investigate several models described by real scalar fields, searching for topological defects. Some models are described by a single field, and support one or two topological sectors, and others are two-field models, which support several topological sectors. Almost all the defect structures that we find are stable and finite energy solutions of first-order differential equations that solve the corresponding equations of motion. In particular, for the double sine-Gordon model we show how to find small and large BPS solutions as deformations of the BPS solution of the $ϕ^4$ model. And also, for most of the two field models we find the corresponding integrating factors, which lead to the complete set of BPS solutions, nicely unveiling how they bifurcate among the several topological sectors.
description: RevTex, 18 pages, 17 figures; Version to appear in Physica D
Cryopreservation of sugarcane embryogenic callus using a simplified freezing process
Creators: name: Martinez-Montero, M. E.
name: Gonzalez-Arnao, M. T.
name: Borroto-Nordelo, C.
name: Puentes-Diaz, C.
name: Engelmann, F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Tissues and Organs (q-bio.TO)
subject: FOS: Biological sciences

description: A simplified freezing process was developed and successfully applied to embryogenic calluses of three sugarcane commercial hybrids (Saccharum sp. cv. CP 5243, C 91-301 and C 1051-73). To obtain optimal survival, the calluses were pretreated with a cryoprotective solution containing 10% DMSO and 0.3 to 0.75M sucrose. For freezing, the samples were immersed in an alcohol bath placed in a -40 degrees C freezer, thus allowing a freezing rate comprised between 0.4 and 0.6 degrees C/min. Samples were held at that temperature for 2 h before immersion in liquid nitrogen. The highest survival rates of cryopreserved calluses ranged between 20 and 94% depending on the variety, and fully developed plantlets could be obtained from regenerating calluses. Embryogenic calluses of one variety were stored for 14 months in liquid nitrogen without any effect on their survival rate and plantlet production.
description: 6 pages, 3 tables
On the Need for Phenomenological Theory of P-Vortices or Does Spaghetti Confinement Pattern Admit Condensed-Matter Analogies?
Creators: name: Mironov, A.
name: Morozov, A.
name: Tomaras, T. N.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Usually the intuition from condensed-matter physics is used to provide ideas for possible confinement mechanisms in gauge theories. Today, with a clear but puzzling ``spaghetti'' confinement pattern, arising after a decade of lattice computer experiments, which implies formation of a fluctuating net of peculiar magnetic vortices rather than condensation of the homogeneously distributed magnetic monopoles, the time is coming to reverse the logic and search for similar patterns in condensed matter systems. The main thing to look for in a condensed matter setup is the simultaneous existence of narrow tubes ($P$-vortices or 1-branes) of direction-changing electric field and broader tubes (Abrikosov lines) of magnetic field, a pattern dual to the one, presumably underlying confinement in gluodynamics. As a possible place for this search we suggest systems with coexisting charge-density waves and superconductivity.
description: 20 pages, 7 figures; to be published in ZhETF
Speaking Stata: Graphing categorical and compositional data
Creators: name: Cox, Nicholas J.
name: Cox, Nicholas J.
Publisher: name: Unknown
Year: 2004
Subjects: subject: Research Methods/ Statistical Methods
subject: graphics
subject: categorical data
subject: binary data
subject: nominal data
subject: ordinal data
subject: grades
subject: compositional data
subject: cross-tabulations
subject: bar charts
subject: cumulative distributions
subject: logit scale
subject: catplot
subject: tabplot
subject: tableplot
subject: distplot
subject: mylabels
subject: triplot

description: A variety of graphs have been devised for categorical and compositional data, ranging from widely familiar to more unusual displays. Both official Stata commands and user-written programs are available. After a stacking trick for binary responses is explained, bar charts and related displays for cross-tabulations are discussed in detail. Tips and tricks are introduced for plotting cumulative distributions of graded (ordinal) data. Triangular plots are explained for three-way compositions, such as three proportions or percentages.
Ramos, A. Jesus, O Bispo de Coimbra D. Manuel Correia de Bastos Pina, Gráfica de Coimbra, Coimbra, 1995, 496 pp., 230 x 160, ISBN 972-603-102-8.
Creators: name: Arieiro, José
Publisher: name: Theologica
Year: 2021

description: Theologica, v. 32 n. 2 (1997): Sobre algumas questões postas à Igreja. O Encontro de Graz e a questão ecuménica
Classifying histograms of medical data using information geometry of beta distributions
Creators: name: Brigant, Alice Le
name: Guigui, Nicolas
name: Rebbah, Sana
name: Puechmorel, Stéphane
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: Differential Geometry (math.DG)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: In this paper, we use tools of information geometry to compare, average and classify histograms. Beta distributions are fitted to the histograms and the corresponding Fisher information geometry is used for comparison. We show that this geometry is negatively curved, which guarantees uniqueness of the notion of mean, and makes it suitable to classify histograms through the popular K-means algorithm. We illustrate the use of these geometric tools in supervised and unsupervised classification procedures of two medical data-sets, cardiac shape deformations for the detection of pulmonary hypertension and brain cortical thickness for the diagnosis of Alzheimer's disease.
Baryonic Resonances from Baryon Decuplet-Meson Octet Interaction
Creators: name: Sarkar, Sourav
name: Oset, E.
name: Vacas, M. J. Vicente
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study $S$-wave interactions of the baryon decuplet with the octet of pseudoscalar mesons using the lowest order chiral Lagrangian. In the S=1 sector, we find an attractive interaction in the $ΔK$ channel with I=1 while it is repulsive for I=2. The attractive interaction leads to a pole in the second Riemann sheet of the complex plane and is manifested as a large strength in the scattering amplitude close to the $ΔK$ threshold, which is not the case for I=2. We use the unitarized coupled channel approach to also investigate all the other possible values of strangeness and isospin. We find two bound states in the SU(3) limit corresponding to the octet and decuplet representations. These are found to split into eight different trajectories in the complex plane when the SU(3) symmetry is broken gradually. Finally, we are able to provide a reasonable description for a good number of 4-star ${3/2}^-$ resonances listed by the Particle Data Group. In particular, the $Ξ(1820)$, the $Λ(1520)$ and the $Σ(1670)$ states are well reproduced. We predict a few other resonances and also evaluate the couplings of the observed resonances to the various channels from the residues at the poles of the scattering matrix from where partial decay widths into different channels can be evaluated.
description: Discussion and figures added
Photoemission from the gas phase using soft x-ray fs pulses: An investigation of the space-charge effects
Creators: name: Verna, Adriano
name: Stefani, Giovanni
name: Offi, Francesco
name: Gejo, Tatsuo
name: Tanaka, Yoshihito
name: Tanaka, Kenta
name: Nishie, Tatsuru
name: Nagaya, Kiyonobu
name: Niozu, Akinobu
name: Yamamura, Ryosuke
name: Suenaga, Taiga
name: Takahashi, Osamu
name: Fujise, Hikaru
name: Togashi, Tadashi
name: Yabashi, Makina
name: Oura, Masaki
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: An experimental and computational investigation of the space-charge effects occurring in ultrafast photoelectron spectroscopy from the gas phase is presented. The target sample CF$_3$I is excited by ultrashort (100 fs) far-ultraviolet radiation pulses produced by a free-electron laser. The modification of the energy distribution of the photoelectrons, i.e. the shift and broadening of the spectral structures, is monitored as a function of the pulse intensity. The experimental results are compared with computational simulations which employ a Barnes-Hut algorithm to calculate the effect of individual Coulomb forces acting among the particles. In the presented model, a survey spectrum acquired at low radiation fluence is used to determine the initial energy distribution of the electrons after the photoemission event. The spectrum modified by the space-charge effects is then reproduced by $N$-body calculations that simulate the dynamics of the photoelectrons subject to the individual mutual Coulomb repulsion and to the attractive force of the positive ions. The employed numerical method accounts for the space-charge effects on the energy distribution and allows to reproduce the complete photoelectron spectrum and not just a specific photoemission structure. The simulations also provide information on the time evolution of the space-charge effects on the picosecond scale. Differences with the case of photoemission from solid samples are highlighted and discussed. The presented simulation procedure, although it omits the analysis of angular distribution, constitutes an effective simplified model that allows to predict and account for space-charge effects on the photoelectron energy spectrum in time-resolved photoemission experiments with high-intensity pulsed sources.
description: 21 pages, 5 figures, 1 table
Eta-eta' masses and mixing: a large N_c reappraisal
Creators: name: Gerard, J. -M.
name: Kou, E.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We reconcile the 1/N_c expansion with the observed eta-eta' mass spectrum. The chiral corrections introduced for that purpose are natural and consistent with the octet-singlet mixing angle theta=-(22\pm 1)^{\circ} extracted from phenomenology in the large N_c limit.
description: 9 pages, 1 figure. Version 2: three new equations added, reference updated
AA.W, Fe, Cautiverio y Liberación. «Cristianos con Diós en la pasión», Actas del I Congreso Trinitario de Granada (6-8 Octubre 1995), Padres Trinitarios, Cordoba, 1996, 376 pp., 240 x 160, ISSN 84-404-3500-2.
Creators: name: Arieiro, José
Publisher: name: Theologica
Year: 2021

description: Theologica, v. 32 n. 2 (1997): Sobre algumas questões postas à Igreja. O Encontro de Graz e a questão ecuménica
Future of Machine Learning with AR and VR.pdf
Creators: name: Bolaram Paul
Publisher: name: figshare
Year: 2020
Subjects: subject: 80602 Computer-Human Interaction
subject: FOS: Psychology
subject: Computer Software
subject: FOS: Computer and information sciences
subject: Computer Engineering
subject: Applied Computer Science

description: Modern technologies are moving towards the next big thing i.e Machine learning, augmented reality, and virtual reality world. Tech world now adopting the ability to personalize a customers experience based on their individual behavior and bring that to life virtually.
Quantum codes do not fix isotropic errors
Creators: name: de Lacalle, Jesús García López
name: Coronado, Luis Miguel Pozo
name: de Oliveira, André L. Fonseca
Publisher: name: arXiv
Year: 2025
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this work we prove that quantum error correcting codes do not fix isotropic errors, even assuming that their correction circuits do not introduce new errors. We say that a quantum code does not fix a quantum computing error if its application does not reduce the variance of the error. We also prove for isotropic errors that, if the correction circuit of a quantum code detects an error, the corrected logical $m-$qubit has uniform distribution and as a result, it already loses all the computing information.
description: arXiv admin note: substantial text overlap with arXiv:2101.03971
title: Single-cell microfluidics for screening and testing new antibiotics
Creators: name: Zhang, Jing
Publisher: name: University of Glasgow
Year: 2021
Subjects: subject: microfluidics, Raman activated droplet sorting system, antibiotics discovery.

description: Antibiotics have saved countless lives in recent human history. However, overuse of antibiotics has given rise to rapid appearance and spread of antibiotic resistant bacteria, which has become a significant threat to the global health. Currently, all existing antibiotics have encountered resistant bacteria, making the discovery of new antibiotics an urgent global challenge. Although promising non-traditional candidates, such as antibacterial vaccines, bacteriophages, antimicrobial peptides, plant extracts, and synbiotics, are emerging in recent years, substantial work is needed to illustrate their effectiveness and mechanisms of action. Methods allowing rapid evaluation of these processes would significantly speed up the discovery of effective antibiotics. In recent years, microfluidic technology has been rapidly applied in antibiotic research, offering enhanced sensitivity and less analysis time. In this project, we aimed to develop microfluidic platforms for high throughput screening of a new class of antibiotics (e.g. bacteriocin) and evaluating their killing mechanisms. To achieve multiplex and label-free detection, we exploited advances in droplet-microfluidics and Raman spectroscopy to develop Raman activated droplet sorting system. Key modules for the systems have been developed to realize single cell encapsulation in droplets, Raman detection of encapsulated single cells in continuous flow and high efficient sorting of targeted samples. In addition, we also developed a single-cell microfluidic system for real-time monitoring cell growth under stable antibiotic gradient. Both of these two systems will provide promising tools for antibiotic discovery and rapid antibiotic resistance tests.
Marques, José, Os forais da Póvoa de Varzim e de Rates, ed. Câmara Municipal, Póvoa de Varzim 1991, 168 pp., 330 x 240, ISBN 972-9146-22-5
Creators: name: Abreu, Paulo
Publisher: name: Theologica
Year: 2021

description: Theologica, v. 32 n. 2 (1997): Sobre algumas questões postas à Igreja. O Encontro de Graz e a questão ecuménica
On the use of neural networks for the structural characterization of polymeric porous materials
Creators: name: Torre, Jorge
name: Barroso-Solares, Suset
name: Rodríguez-Pérez, M. A.
name: Pinto, Javier
Publisher: name: arXiv
Year: 2025
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Image and Video Processing (eess.IV)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The structural characterization is an essential task in the study of porous materials. To achieve reliable results, it requires to evaluate images with hundreds of pores. Current methods require large time amounts and are subjected to human errors and subjectivity. A completely automatic tool would not only speed up the process but also enhance its reliability and reproducibility. Therefore, the main objective of this article is the study of a deep-learning-based technique for the structural characterization of porous materials, through the use of a convolutional neural network. Several fine-tuned Mask R CNN models are evaluated using different training configurations in four separate datasets each composed of numerous SEM images of diverse polymeric porous materials: closed-pore extruded polystyrene (XPS), polyurethane (PU), and poly(methyl methacrylate) (PMMA), and open-pore PU. Results prove the tool capable of providing very accurate results, equivalent to those achieved by time consuming manual methods, in a matter of seconds.
Experimental Free-Space Distribution of Entangled Photon Pairs over a Noisy Ground Atmosphere of 13km
Creators: name: Peng, Cheng-Zhi
name: Yang, Tao
name: Bao, Xiao-Hui
name: Jun-Zhang
name: Jin, Xian-Min
name: Feng, Fa-Yong
name: Yang, Bin
name: Yang, Jian
name: Yin, Juan
name: Zhang, Qiang
name: Li, Nan
name: Tian, Bao-Li
name: Pan, Jian-Wei
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report free-space distribution of entangled photon pairs over a noisy ground atmosphere of 13km. It is shown that the desired entanglement can still survive after the two entangled photons have passed through the noisy ground atmosphere. This is confirmed by observing a space-like separated violation of Bell inequality of $2.45 \pm 0.09$. On this basis, we exploit the distributed entangled photon source to demonstrate the BB84 quantum cryptography scheme. The distribution distance of entangled photon pairs achieved in the experiment is for the first time well beyond the effective thickness of the aerosphere, hence presenting a significant step towards satellite-based global quantum communication.
description: 4 pages, 3 figures
Photonic production of the pair of $B_c$ mesons
Creators: name: Dorokhov, A. E.
name: Faustov, R. N.
name: Martynenko, A. P.
name: Martynenko, F. A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the pair production of $B_c$ mesons in the photon-photon interaction in the framework of perturbative quantum chromodynamics and the relativistic quark model. The production amplitudes of a pair of pseudoscalar and vector $B_c$ mesons are constructed in the nonrelativistic approximation and taking into account relativistic effects. Relativistic corrections related to the relative motion of heavy quarks in the production amplitude, as well as in the wave function of the bound state of heavy quarks, are taken into account. Analytical expressions are constructed for the relativistic differential and total cross sections for the pair $B_c$ meson production. Based on them, numerical values of the production cross sections are obtained for various energies and scattering angles.
description: 18 pages, 4 figures
Sousa Araújo, António de, e Cardoso, José, História das guerras da Ibéria, de Apiano. Notas introdutórias e versão port. do orig. grego do séc. II, 2.a ed., Ed. revista Itinerarium, Braga, 1993, 136 pp., 230 x 160, ISBN 972-9190-33-X
Creators: name: Torres, Amadeu
Publisher: name: Theologica
Year: 2021

description: Theologica, v. 32 n. 2 (1997): Sobre algumas questões postas à Igreja. O Encontro de Graz e a questão ecuménica
Tight Bounds on the Clique Chromatic Number
Creators: name: Joret, Gwenaël
name: Micek, Piotr
name: Reed, Bruce
name: Smid, Michiel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: The clique chromatic number of a graph is the minimum number of colours needed to colour its vertices so that no inclusion-wise maximal clique which is not an isolated vertex is monochromatic. We show that every graph of maximum degree $Δ$ has clique chromatic number $O\left(\fracΔ{\log~Δ}\right)$. We obtain as a corollary that every $n$-vertex graph has clique chromatic number $O\left(\sqrt{\frac{n}{\log ~n}}\right)$. Both these results are tight.
description: v2: revised following referees' comments
Supplemental materials.pdf
Creators: name: Yongke Lu
Publisher: name: figshare
Year: 2020
Subjects: subject: Pathology
subject: Pharmacology
subject: Physiology
subject: FOS: Biological sciences
subject: 60104 Cell Metabolism
subject: 60102 Bioinformatics
subject: FOS: Computer and information sciences
subject: 60603 Animal Physiology - Systems

description: This is a supplemental document for a manuscript entitled "High fat diet induces fibrosis in mice lacking CYP2A5 and PPARα: A new model for steatohepatitis-associated fibrosis" submitted to American Journal of Physiology- Gastrointestinal and Liver Physiology
Beyond perturbation theory: A time-dependent approach to inelastic scattering spectroscopies in- and away from equilibrium
Creators: name: Zawadzki, Krissia
name: Yang, Luhang
name: Feiguin, Adrian E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We propose a non-perturbative numerical approach to calculate the spectrum of a many-body Hamiltonian with time and momentum resolution by exactly recreating a scattering event using the time-dependent Schrödinger equation. Akin an actual inelastic scattering experiment, we explicitly account for the incident and scattered particles ( e.g. photons, neutrons, electrons...) in the Hamiltonian and obtain the spectrum by measuring the energy and momentum lost by the particle after interacting with the sample. We illustrate the method by calculating the spin excitations of a Mott-insulating Hubbard chain after a sudden quench with the aid of the time-dependent density matrix renormalization group (tDMRG) method. Our formalism can be applied to different forms of spectroscopies, such as neutron and Compton scattering, and electron energy-loss spectroscopy (EELS), for instance.
description: 10 pages, 8 figures
Modeling the resonant planetary system GJ876
Creators: name: Kley, Willy
name: Lee, Man-Hoi
name: Murray, Norman
name: Peale, Stan
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The two planets about the star GJ 876 appear to have undergone extensive migration from their point of origin in the protoplanetary disk -- both because of their close proximity to the star (30 and 60 day orbital periods) and because of their occupying three stable orbital resonances at the 2:1 mean-motion commensurability. The resonances were most likely established by converging differential migration of the planets leading to capture into the resonances. A problem with this scenario is that continued migration of the system while it is trapped in the resonances leads to orbital eccentricities that rapidly exceed the observational upper limits of e_1 = 0.31 and e_2 = 0.05. As seen in forced 3-body simulations, lower eccentricities would persist during migration only for an applied eccentricity damping. Here we explore the evolution of the GJ 876 system using two-dimensional hydrodynamical simulations that include viscous heating and radiative effects. We find that a hydrodynamic evolution within the resonance, where only the outer planet interacts with the disk, always rapidly leads to large values of eccentricities that exceed those observed. Only if mass is removed from the disk on a time scale of the order of the migration time scale (before there has been extensive migration after capture), as might occur for photoevaporation in the late phases of planet formation, can we end up with eccentricities that are consistent with the observations.
description: Paper accepted by A&A, 17 Pages, 17 Figures
Sande, Duarte de, S.J., Diálogo sobre a missão dos embaixadores portugueses à cúria romana. Prefácio, trad. do latim e comentário por Américo da Costa Ramalho, Comissão Territorial de Macau para as Comemorações dos Descobrimentos Portugueses
Creators: name: Torres, Amadeu
Publisher: name: Theologica
Year: 2021

description: Theologica, v. 32 n. 2 (1997): Sobre algumas questões postas à Igreja. O Encontro de Graz e a questão ecuménica
Is Growing Livestock Inventories a Sustainable Initiative Given Phosphorus Crop Removal Regulations?
Creators: name: Mark, Tyler B.
name: Detre, Joshua D.
name: Boehlje, Michael
name: Gray, Allan W.
name: Mark, Tyler B.
name: Detre, Joshua D.
name: Boehlje, Michael
name: Gray, Allan W.
Publisher: name: Unknown
Year: 2010
Subjects: Agribusiness
Livestock Production/Industries

description: As environmental regulations continue to tighten and shift from nitrogen to phosphorus-based application standards for manure, phosphorus removal will become increasingly important for any state considering a livestock growth initiative. A framework was developed that can determine a state’s phosphorus removal capacity based upon production of livestock and crops and varying phosphorus removal standards. The state level results indicate that Indiana, along with Arizona, Illinois, Iowa, Kansas, and Texas, are well positioned to undertake a livestock growth initiative given that each state has excess phosphorous removal capacity.
A Somewhat Random Walk Through Nuclear and Particle Physics
Creators: name: Cohen, Thomas D.
name: Poniatowski, Nicholas R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: These notes are an outgrowth of an advanced undergraduate course taught at the University of Maryland, College Park. They are intended as an introduction to various aspects of particle and nuclear physics with an emphasis on the role of symmetry. The basic philosophy is to introduce many of the fundamental ideas in nuclear and particle physics using relatively sophisticated mathematical tools -- but to do so in as a simplified a context to explain the underlying ideas. Thus, for example, the Higgs mechanism is discussed in terms of an Abelian Higgs model. The emphasis is largely, but not entirely theoretical in orientation. The goal is for readers to develop an understanding of many of the underlying issues in a relatively sophisticated way.
description: 158 pages; submission to SciPost Lecture Notes
Quantum dot in the pseudogap Kondo state
Creators: name: Hopkinson, J.
name: Hur, K. Le
name: Dupont, E.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the transport properties of a (small) quantum dot connected to Fermi liquid leads with a power-law density of states (DOS). Such a system, if experimentally realizable, will have interesting physical properties including: (i) non-saturating Coulomb blockade peak widths; (ii) a non-unitary Kondo peak symmetrically placed between the Coulomb blockade peaks; (iii) an absence of conductance away from particle-hole symmetry at sufficiently low temperatures; and (iv) evidence of a quantum critical point as a function of dot-lead hopping. These properties are compared and contrasted with one dimensional Luttinger systems exhibiting a power-law "tunneling-DOS".
description: Real part of the self-energy added to Eq. (2). Accepted for publication in EPJB as a Rapid Note, 4 pages, 3 figures
Health Benefits of Kuchipudi Dance: An Indian classical dance-based intervention to manage musculoskeletal injury and psychological distress in young and otherwise healthy individuals
Creators: name: Laalithya Konduru
Publisher: name: figshare
Year: 2020
Subjects: subject: 111799 Public Health and Health Services not elsewhere classified
subject: FOS: Health sciences

description: Practicing Kuchipudi dance recreationally after learning the correct technique can be an effective low cost intervention to improve mental health, prevent musculoskeletal injury by improving neuromuscular coordination, and improve or prevent disability from back pain in the general population
The GLAST Burst Monitor
Creators: name: von Kienlin, Andreas
name: Meegan, Charles A.
name: Lichti, Giselher G.
name: Bhat, Narayana P.
name: Briggs, Michael S.
name: Connaughton, Valerie
name: Diehl, Roland
name: Fishman, Gerald J.
name: Greiner, Jochen
name: Hoover, Andrew S.
name: Kippen, R. Marc
name: Kouveliotou, Chryssa
name: Paciesas, William S.
name: Preece, Robert D.
name: Schoenfelder, Volker
name: Steinle, Helmut
name: Wilson, Robert B.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The next large NASA mission in the field of gamma-ray astronomy, GLAST, is scheduled for launch in 2007. Aside from the main instrument LAT (Large-Area Telescope), a gamma-ray telescope for the energy range between 20 MeV and > 100 GeV, a secondary instrument, the GLAST burst monitor (GBM), is foreseen. With this monitor one of the key scientific objectives of the mission, the determination of the high-energy behaviour of gamma-ray bursts and transients can be ensured. Its task is to increase the detection rate of gamma-ray bursts for the LAT and to extend the energy range to lower energies (from ~10 keV to \~30 MeV). It will provide real-time burst locations over a wide FoV with sufficient accuracy to allow repointing the GLAST spacecraft. Time-resolved spectra of many bursts recorded with LAT and the burst monitor will allow the investigation of the relation between the keV and the MeV-GeV emission from GRBs over unprecedented seven decades of energy. This will help to advance our understanding of the mechanisms by which gamma-rays are generated in gamma-ray bursts.
description: 8 pages, 7 figures, to appear in SPIE conference proceedings vol 5488, "UV-Gamma Ray Space Telescope Systems," Glasgow UK, 21-24 June 2004
Torres, Amadeu (introd. e notas), Gramática Filosófica da Língua Portuguesa, de Melo Bacelar. Reprodução fac-similada da edição de 1783. Col. «Subsídios para a Língua Portuguesa» 27, Academia Portuguesa da História, Lisboa, 1996, 248 pp., 250 x 192.
Creators: name: Arezes, Luís
Publisher: name: Theologica
Year: 2021

description: Theologica, v. 32 n. 2 (1997): Sobre algumas questões postas à Igreja. O Encontro de Graz e a questão ecuménica
Effect of IRC Code 1031 on Texas Agricultural Land Price
Creators: name: Park, Beam Su
name: Richardson, James W.
name: Gilliland, Charles J.
name: Park, Beam Su
name: Richardson, James W.
name: Gilliland, Charles J.
Publisher: name: Unknown
Year: 2010
Subjects: Land Economics/Use

description: In this paper, we examine the effect of Section 1031 tax deferred payment on Texas agricultural land price. To analyze the effects, we estimate the market equilibrium price function using the dynamic panel model and Texas agricultural land sales for 1965-2007. We argue that Section 1031 increases both demand and supply of agricultural land by its tax reducing effect. Our empirical estimation shows that Section 1031 decreases the market price which means the supply curve shifted to the right more than the demand curve.
Majorana quasiparticles in atomic spin chains on superconductors
Creators: name: Rachel, Stephan
name: Wiesendanger, Roland
Publisher: name: arXiv
Year: 2025
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Superconductivity (cond-mat.supr-con)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: For the past decade, Majorana quasiparticles have become one of the hot topics in condensed matter research. Besides the fundamental interest in the realization of particles being their own antiparticles, going back to basic concepts of elementary particle physics, Majorana quasiparticles in condensed matter systems offer exciting potential applications in topological quantum computation due to their non-Abelian quantum exchange statistics. Motivated by theoretical predictions about possible realizations of Majorana quasiparticles as zero-energy modes at boundaries of topological superconductors, experimental efforts have focussed in particular on quasi-one-dimensional semiconductor-superconductor and magnet-superconductor hybrid systems. However, an unambiguous proof of the existence of Majorana quasiparticles is still challenging and requires considerable improvements in materials science, atomic-scale characterization and control of interface quality, as well as complementary approaches of detecting various facets of Majorana quasiparticles. Bottom-up atom-by-atom fabrication of disorder-free atomic spin chains on atomically clean superconducting substrates has recently allowed deep insight into the emergence of topological sub-gap Shiba bands and associated Majorana states from the level of individual atoms up to extended chains, thereby offering the possibility for critical tests of Majorana physics in disorder-free model-type 1D hybrid systems.
description: 28 pages, 17 figures, 4 info boxes
Factors Affecting the Adoption of Genetically Modified Crops by Young and Beginning U.S. Farmers and Ranchers
Creators: name: Detre, Joshua D.
name: Mishra, Ashok K.
name: Adhikari, Arun
name: Detre, Joshua D.
name: Mishra, Ashok K.
name: Adhikari, Arun
Publisher: name: Unknown
Year: 2010
Subjects: Agricultural and Food Policy

description: The comprehensive set of programs in the 2008 Farm Bill designed to support Young and Beginning Farmers and Ranchers (YBFR), combined with a substantial amount of resources allocated to each of these programs, can be viewed as an investment in ensuring the future sustainability of the U.S. agriculture system. Understanding the factors that influence YBFR to adopt technology will become increasingly important if YBFR are to succeed. Of particular interest is why YBFR adopt Bt corn, Bt cotton, and HT soybeans. Results conform to a majority of our a priori expectations; YBFRs are more likely to adopt GM crops if they are not a full owner of the farm operation, as sales of the farm operation grow, if the crop is important to their region, and as they become more risk averse.
Garrido, Javier, Adulto e Cristão. Crise de realismo e maturidade cristã, Col. «Psico-Pedagogia», Editorial AO, Braga 1995, 272 pp., 210 x 150, ISBN 972-39-0305-9
Creators: name: Gomes, Miguel Ângelo
Publisher: name: Theologica
Year: 2021

description: Theologica, v. 32 n. 2 (1997): Sobre algumas questões postas à Igreja. O Encontro de Graz e a questão ecuménica
The radio properties of the OH megamaser galaxy IRAS 02524+2046
Creators: name: Peng, Hao
name: Wu, Zhongzu
name: Zhang, Bo
name: Chen, Yongjun
name: Zheng, Xingwu
name: Jiang, Dongrong
name: Shen, Zhiqiang
name: Chen, Xi
name: Sotnikova
name: V, Yu.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present results from VLBI observations of continuum and OH line emission in IRAS 02524+2046 and also arcsecond-scale radio properties of this galaxy using VLA archive data. We found that there is no significant detection of radio continuum emission from VLBI observations. The arcsecond-scale radio images of this source show no clear extended emission, the total radio flux density at L and C band are around 2.9 mJy and 1.0 mJy respectively, which indicate a steep radio spectral index between the two band. Steep spectral index, low brightness temperature and high $q$-ratio (the FIR to the radio flux density), which are three critical indicators in classification of radio activity in the nuclei of galaxies, are all consistent with the classification of this source as a starburst galaxy from its optical spectrum. The high-resolution line profile show that both of \textbf{the 1665 and 1667 MHz OH maser} line have been detected which show three and two clear components respectively. The channel maps show that the maser emission are distributed in a region $\sim$ 210 pc $\times$ 90 pc, the detected maser components at different region show similar double spectral feature, which might be an evidence that this galaxy is at a stage of major merger as seen from the optical morphology.
description: 13pages,9 figures, accepted by A&A
AA.W., Iglesias Locales y Catolicidad, Actas del Coloquio Internacional celebrado en Salamanca, 2-7 de Abril de 1991, Universidad Pontifícia de Salamanca, 1992, 782 pp., 210 x 145, ISBN 84-7299-294-2.
Creators: name: Silva, Fernando
Publisher: name: Theologica
Year: 2021

description: Theologica, v. 32 n. 2 (1997): Sobre algumas questões postas à Igreja. O Encontro de Graz e a questão ecuménica
Comparison of Hedging Cost with Other Variable Input Costs
Creators: name: Riley, John Michael
name: Anderson, John D.
name: Riley, John Michael
name: Anderson, John D.
Publisher: name: Unknown
Year: 2010
Subjects: Demand and Price Analysis
Production Economics

description: Recent spikes in commodity prices have led to higher margin amounts and option premiums. For the most part, producers have always attributed their lack of use in reducing risk via futures and options markets to the high cost associated with the use of these markets. This study determines the relative costs of hedging with futures and options and compares these with the costs of other variable inputs. We find that with the exception of hedging corn with both tools and soybeans with options the costs of hedging has increased at roughly the same rate as all other inputs.
On the method of estimating emission altitude from relativistic phase shift in pulsars
Creators: name: Gangadhara, R. T.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In the preprint astro-ph/0411161 (hereafter G04b), the term -(Omega r/c) sin(theta')cos(Theta) is missing in the equation (13) for cos(psi). So, in this is supplementary preprint I give the corrected expression for cos(psi) and the revised derivation of aberration phase shift.
description: 4 pages, Corrections to astro-ph/0411161
Large-Scale Producers' Perceptions of, and Managerial Responses to, Increased Volatility
Creators: name: Alexander, Corinne E.
name: Patrick, George F.
name: Alexander, Corinne E.
name: Patrick, George F.
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Farm Management
subject: Marketing
subject: FOS: Economics and business

description: Surveys were conducted with participants in the 2008 and 2009 Top Farmer Crop Workshops at Purdue University. These large-scale commercial farmers were asked about changes in the availability of forward pricing contracts and its impact on their marketing program. These producers were also asked about their perceptions of input costs and their management responses to higher input costs, including flexible cash rents. Although these large-scale producers have used a more active management style in response to increased volatility, there is a need for additional education and assistance in both marketing and input acquisition.
Effects of Fermi velocity engineering in magnetic graphene superlattices
Creators: name: Bezerra, Ícaro S. F.
name: Lima, Jonas R. F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this work we investigate theoretically the influence of a Fermi velocity modulation in the electronic and transport properties of magnetic graphene superlattices. We solve the effective Dirac equation for graphene with a position dependent vector potential and Fermi velocity and use the transfer matrix method to obtain the transmission coefficient for the finite cases and the dispersion relation for a periodic superlattice. Our results reveals that the Fermi velocity modulation can control the resonance peaks of the transmittance and also works as a switch, turning on/off the transmission through the magnetic barriers. The results obtained here can be used for the fabrication of graphene-based electronic devices.
Chiral Lagrangians at finite temperature and the Polyakov Loop
Creators: name: Megias, E.
name: Arriola, E. Ruiz
name: Salcedo, L. L.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Heat kernel expansions at finite temperature of massless QCD and chiral quark models generate effective actions relevant for both low and high temperature QCD. The key relevance of the Polyakov Loop to maintain the large and non-perturbative gauge invariance at finite temperature is stressed.
description: Talk given at 6th Conference on Quark Confinement and the Hadron Spectrum, Villasimius, Sardinia, Italy, 21-25 Sep 2004
AA.W., Cuademos Doctorales, col. «Derecho Canónico (y) Derecho Eclesiástico del Estado» 12, Facultad de Derecho Canónico, Instituto Martin Azpilcueta, da Universidad de Navarra, Pamplona, 1994, 568 pp. 240 x 170.
Creators: name: Silva, Fernando
Publisher: name: Theologica
Year: 2021

description: Theologica, v. 32 n. 2 (1997): Sobre algumas questões postas à Igreja. O Encontro de Graz e a questão ecuménica
Ghost-free higher-derivative theory
Creators: name: Smilga, A. V.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present an example of the quantum system with higher derivatives in the Lagrangian, which is ghost-free: the spectrum of the Hamiltonian is bounded from below and unitarity is preserved.
description: 13 pages, 1 figure