cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Reaction and proton-removal cross sections of $^6$Li, $^7$Be, $^{10}$B, $^{9,10,11}$C, $^{12$N, $^{13,15}$O and $^{17}$Ne on Si at 15 to 53 MeV/nucleon
Creators: name: Warner, R. E.
name: Carstoiu, F.
name: Brown, J. A.
name: Becchetti, F. D.
name: Davids, B.
name: Galonsky, A.
name: Horoi, M.
name: Kolata, J. J.
name: Nadasen, A.
name: Roberts, D. A.
name: Ronningen, R. M.
name: Samanta, C.
name: Schwarzenberg, J.
name: Steiner, M.
name: Subotic, K.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Excitation functions for total reaction cross sections, $σ_R$, were measured for the light, mainly proton-rich nuclei $^6$Li, $^7$Be, $^{10}$B, $^{9,10,11}$C, $^{12}$N, $^{13,15}$O, and $^{17}$Ne incident on a Si telescope at energies between 15 and 53 MeV/nucleon. The telescope served as target, energy degrader and detector. Proton-removal cross sections, $σ_{2p}$ for $^{17}$Ne and $σ_p$ for most of the other projectiles, were also measured. The strong absorption model reproduces the $A$-dependence of $σ_R$, but not the detailed structure. Glauber multiple scattering theory and the JLM folding model provided improved descriptions of the measured $σ_R$ values. $rms$ radii, extracted from the measured $σ_R$ using the optical limit of Glauber theory, are in good agreement with those obtained from high energy data. One-proton removal reactions are described using an extended Glauber model, incorporating second order noneikonal corrections, realistic single particle densities, and spectroscopic factors from shell model calculations.
description: 16 pages, 6 figures
Quantum dynamics of coupled excitons and phonons in chain-like systems: Tensor train approaches and higher-order propagators
Creators: name: Gelß, Patrick
name: Matera, Sebastian
name: Klein, Rupert
name: Schmidt, Burkhard
Publisher: name: Weierstrass Institute
Year: 2023
Subjects: subject: Numerical quantum mechanics
subject: Schrödinger equations
subject: tensor train decompositions
subject: symplectic integrators
subject: exciton-phonon-coupling
subject: Fröhlich--Holstein Hamiltonian
subject: 35L05
subject: 65D40
subject: 65M70
subject: 65P10
subject: 81Q05
subject: 02.30.Jr
subject: 02.60.Cb
subject: 03.65.Ge
subject: 07.05.Tp
subject: 63.20.D-
subject: 63.20.kd
subject: 71.35.Aa

description: We investigate the use of tensor-train approaches to the solution of the time-dependent Schrödinger equation for chain-like quantum systems with on-site and nearest-neighbor interactions only. Using the efficient SLIM representation for low-rank tensor train representations of quantum-mechanical Hamiltonians, we aim at reducing the memory consumption as well as the computation costs, in order to mitigate the curse of dimensionality as much as possible. As an example, coupled excitons and phonons modeled in terms of Fröhlich--Holstein type Hamiltonians are studied here. By comparing our tensor-train based results with semi-analytical results, we demonstrate the key role of the ranks of tensor-train representations for quantum state vectors. Both the computational effort of the propagations and the accuracy that can be reached crucially depend on the maximum number of ranks chosen. Typically, an excellent quality of the solutions is found only when the ranks exceeds a certain value. That threshold, however, is very different for excitons, phonons, and coupled systems. One class of propagation schemes used in the present work builds on splitting the Hamiltonian into two groups of interleaved nearest-neighbor interactions which commutate within each of the groups. In addition to the first order Lie--Trotter and the second order Strang--Marchuk splitting schemes, we have also implemented the 4-th order Yoshida--Neri and the 8-th order Kahan--Li symplectic compositions. Especially the latter two are demonstrated to yield very accurate results, close to machine precision. However, due to the computational costs, currently their use is restricted to rather short chains. Another class of propagators involves explicit, time-symmetrized Euler integrators. Building on the traditional second order differencing method, we have also implemented higher order methods. Especially the 4-th order variant is recommended for quantum simulations of longer chains, even though the high precision of the splitting schemes cannot be reached. Moreover, the scaling of the computational effort with the dimensions of the local Hilbert spaces is much more favorable for the differencing than for the splitting schemes.
Superfluidity in the Solar Interior: Implications for Solar Eruptions and Climate
Creators: name: Manuel, O.
name: Ninham, B. W.
name: Friberg, S. E.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Efforts to understand unusual weather or abrupt changes in climate have been plagued by deficiencies of the standard solar model (SSM). While it assumes that our primary source of energy began as a homogeneous ball of hydrogen (H) with a steady, well-behaved H-fusion reactor at its core, observations instead reveal a very heterogeneous, dynamic Sun. As examples, the upward acceleration and departure of H+ ions from the surface of the quiet Sun and abrupt climatic changes, including geomagnetic reversals and periodic magnetic storms that eject material from the solar surface are not explained by the SSM. The present magnetic fields are probably deep-seated remnants of very ancient origin. These could have been generated from two mechanisms. These are: a) Bose-Einstein condensation of iron-rich, zero-spin material into a rotating, superfluid, superconductor surrounding the solar core and/or b) superfluidity and quantized vortices in nucleon-paired Fermions at the core.
description: 7 pages with 1 figure
Electre Tree A Machine Learning Approach to Infer Electre Tri B Parameters
Creators: name: de Barros, Gabriela Montenegro
name: Pereira, Valdecy
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Purpose: This paper presents an algorithm that can elicitate (infer) all or any combination of ELECTRE Tri-B parameters. For example, a decision-maker can maintain the values for indifference, preference, and veto thresholds, and our algorithm can find the criteria weights, reference profiles, and the lambda cutting level. Our approach is inspired by a Machine Learning ensemble technique, the Random Forest, and for that, we named our approach as ELECTRE Tree algorithm. Methodology: First, we generate a set of ELECTRE Tri-B models, where each model solves a random sample of criteria and alternatives. Each sample is made with replacement, having at least two criteria and between 10% to 25% of alternatives. Each model has its parameters optimized by a genetic algorithm that can use an ordered cluster or an assignment example as a reference to the optimization. Finally, after the optimization phase, two procedures can be performed, the first one will merge all models, finding in this way the elicitated parameters, and in the second procedure each alternative is classified (voted) by each separated model, and the majority vote decides the final class. Findings: We have noted that concerning the voting procedure, non-linear decision boundaries are generated, and they can be suitable in analyzing problems with the same nature. In contrast, the merged model generates linear decision boundaries. Originality: The elicitation of ELECTRE Tri-B parameters is made by an ensemble technique that is composed of a set of multicriteria models that are engaged in generating robust solutions.
description: 21 pages, 8 figures, 8 tables
The Cosmological Unimportance of Low Surface Brightness Galaxies
Creators: name: Hayward, C. C.
name: Irwin, J. A.
name: Bregman, J. N.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have searched for Type Ia supernovae (SNe Ia) in the local (d < 60 Mpc) Universe using Northern Sky Variability Survey (NSVS) data collected from the nightly optical surveys of the Robotic Optical Transient Search Experiment} (ROTSE) Telescope. It was hoped that SNe Ia would provide a means to find previously-unknown low surface brightness (LSB) galaxies or displaced stars that would otherwise be very difficult to detect. The ROTSE data allowed us to survey 19,000 square degrees at declinations north of 0 degrees, but we did not find a single SN Ia in a period of time covering roughly one year. Using known SNe Ia rates in bright galaxies, we set an upper limit on the optical luminosity density, L_B, of LSBs in the local Universe. Using mean LSB baryonic and dynamical mass-to-light ratios, we find 95% upper limits for LSBs of L_B \le 2.53 x 10^8 L_{B, solar} Mpc^{-3}, Omega_b \le 0.0040, and Omega_m \le 0.036. We conclude that LSBs and displaced stars are not a major constituent of matter in the local Universe.
description: 17 pages, 4 figures, to be published in The Astrophysical Journal
Challenges in Non-Linear Gravitational Clustering
Creators: name: Padmanabhan, T.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This article addresses some issues related to statistical description of gravitating systems in an expanding backgrounds. In particular, I describe (a) how the non linear mode-mode coupling transfers power from one scale to another in the Fourier space if the initial power spectrum is sharply peaked at a given scale and (b) what are the asymptotic characteristics of gravitational clustering that are independent of the initial conditions. The analysis uses a new approach based on an integro-differential equation for the evolution of the gravitational potential in the Fourier space. I show how this equation allows one to understand several aspects of nonlinear gravitational clustering and provides insight in to the transfer of power from one scale to another through nonlinear mode coupling. Numerical simulations as well as analytic work shows that power transfer leads to a universal power spectrum at late times, somewhat reminiscent of the existence of Kolmogorov spectrum in fluid turbulence.
description: Based on the lectures given at (i)UCT Meeting on Cosmology, 6-10 July,05; (ii)Meeting on `Statistical Mechanics of Non-Extensive Systems', 24-25 Oct 05, Paris. To be published in a Special Issue of Les Comptes rendus de l'Academie des Sciences. 15 pages; 4 figures
Kinematics, ages and metallicities for F and G type stars in the solar neighbourhood
Creators: name: Karatas, Y.
name: Bilir, S.
name: Schuster, W. J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A new metallicity distribution and an age-metallicity relation are presented for 437 nearby F and G turn-off and sub-giant stars selected from radial velocity data of Nidever et al. Photometric metallicities are derived from uvby-Hβphotometry, and the stellar ages from the isochrones of Bergbusch & VandenBerg as transformed to $uvby$ photometry using the methods of Clem et al. The X (stellar-population) criterion of Schuster et al., which combines both kinematic and metallicity information, provides 22 thick-disk stars. σ_{\rm W} = 32 \pm 5 km s^{-1}, = 154 \pm 6 km s^{-1} and = -0.55 \pm 0.03 dex for these thick-disk stars, which is in agreement with values from previous studies of the thick disk. α-element abundances which are available for some of these thick-disk stars show the typical alpha-element signatures of the thick disk, supporting the classification procedure based on the $X$ criteria. Both the scatter in metallicity at a given age and the presence of old, metal-rich stars in the age-metallicity relation make it difficult to decide whether or not an age-metallicity relation exists for the older thin-disk stars. For ages greater than 3 Gyr, our results agree with the other recent studies that there is almost no correlation between age and metallicity, Δ([M/Fe])/Δ(age) = -0.01 \pm 0.005 dex Gyr^{-1}. For the 22 thick-disk stars there is a range in ages of 7-8 Gyr, but again almost no correlation between age and metallicity.
description: 11 pages, including 10 figures and 3 tables, accepted for publication in MNRAS
Additional file 1 of Exploring reasons for state-level variation in incidence of dialysis-requiring acute kidney injury (AKI-D) in the United States
Creators: name: Zijin Chen
name: McCulloch, Charles E.
name: Powe, Neil R.
name: Heung, Michael
name: Saran, Rajiv
name: Pavkov, Meda E.
name: Nilka Rios Burrows
name: Hsu, Raymond K.
name: Chi-Yuan Hsu
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1 Supplementary Table 1 The BRFSS questionnaires included in our study. Supplementary Table 2 State-level AKI-D incidence in 2011 for the 18 states in the primary analysis. Supplementary Table 3 State-level demographic characteristics of BRFSS respondents in 2011 for the 18 states in the primary analysis. Supplementary Table 4 State-level prevalence estimates for diabetes mellitus and rates of hospitalization with diabetes mellitus in 2011 for the 18 states in the primary analysis Supplementary Table 5 State-level prevalence estimates for hypertension and rates of hospitalization with hypertension in 2011 for the 18 states in the primary analysis. Supplementary Table 6 State-level prevalence estimates for chronic kidney disease and rates of hospitalization with chronic kidney disease in 2011 for the 18 states in the primary analysis. Supplementary Table 7 State-level prevalence estimates for arteriosclerotic heart disease and rates of hospitalization with arteriosclerotic heart disease in 2011 for the 18 states in the primary analysis. Supplementary Table 8 State-level prevalence estimates for cancer and rates of hospitalization with cancer in 2011 for the 18 states in the primary analysis. Supplementary Table 9 State-level prevalence estimates for chronic obstructive pulmonary disease and rates of hospitalization with chronic obstructive pulmonary disease in 2011 for the 18 states in the primary analysis. Supplementary Table 10 State-level prevalence estimates for skin cancer and rates of hospitalization with skin cancer in 2011 for the 18 states in the primary analysis. Supplementary Table 11 Linear regression model for AKI-D incidence and each chronic health condition for the 25 states in the sensitivity analysis. Supplementary Figure 1 Flow diagram showing selection of state for data analysis. Supplementary Figure 2 Map demonstrating the regional variation of AKI-D incidence in sensitivity analysis with 25 states. Supplementary Figure 3 Rate of hospitalization with cancer and predicted AKI-D incidence for the 25 states in the sensitivity analysis. A) Adjusted for age, % male, and % non-Hispanic White. B) Adjusted for age, % male, % non-Hispanic White, and prevalence of cancer.
Additional file 1 of Study of hospitalization and mortality in Korean diabetic patients using the diabetes complications severity index
Creators: name: Hyunju Yoo
name: Eunjung Choo
name: Lee, Sukhyang
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Science Policy
subject: Computational Biology

description: Additional file 1 : Supplement Table 1. Diabetes complications severity index and list of complications developed from KCD-7 code. Supplement Table 2. Drug use patterns in patients without and with new onset complications from 2 years after DM diagnosis to the end of follow up period. Supplement Table 3. Number and category of complications at 2 years after T2DM diagnosis and the end of the follow-up period. Supplement Table 4. All-cause mortality and hospitalization. Supplement Table 5. Relative risk of hospitalization with Poisson regression model. Supplement Table 6. Hazard ratio of mortality with Cox proportional hazard model. Supplement figure 1. Changes in category of diabetic complications according to duration of diabetes mellitus (A), Changes in number of diabetic complications according to duration of diabetes mellitus (B). Supplement figure 2. Receiver operating characteristics (ROC) curves comparing the diabetic complications severity index (DCSI) with complications count (blue). The lines of DCSI (dotted red) and DCSI linear (dotted green) were overlapped.
Der äthiopische Satan - šayṭān und seine koranischen Ausläufer
Creators: name: Kropp, Manfred
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 89 (2005): Oriens christianus, Band 89
Synchronization of R{ö}ssler Oscillators on Scale-free Topologies
Creators: name: Yook, Soon-Hyung
name: Meyer-Ortmanns, Hildegard
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study the synchronization of R{ö}ssler oscillators as prototype of chaotic systems, when they are coupled on scale-free complex networks. We find that the underlying topology crucially affects the global synchronization properties. Especially, we show that the existence of loops facilitates the synchronizability of the system, whereas Rössler oscillators do not synchronize on tree-like topologies beyond a certain size. By considering Cayley trees, modified by various shortcuts, we find that also the distribution of shortest path lengths between two oscillators plays an important role for the global synchronization.
description: 6 pages, 7 figures
Graph coloring manifolds
Creators: name: Csorba, Peter
name: Lutz, Frank H.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Combinatorics (math.CO)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 05C15; 57M15; 57Q15

description: We introduce a new and rich class of graph coloring manifolds via the Hom complex construction of Lovasz. The class comprises examples of Stiefel manifolds, series of spheres and products of spheres, cubical surfaces, as well as examples of Seifert manifolds. Asymptotically, graph coloring manifolds provide examples of highly connected, highly symmetric manifolds.
description: 19 pages; revised section 3; to appear in "Contemporary Mathematics"
Using chiral perturbation theory to extract the neutron-neutron scattering length from pi- d -> n n gamma
Creators: name: Gardestig, A.
name: Phillips, D. R.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The reaction pi- d -> n n gamma is calculated in chiral perturbation theory so as to facilitate an extraction of the neutron-neutron scattering length (a_nn). We include all diagrams up to O(Q^3). This includes loop effects in the elementary pi- p -> gamma n amplitude and two-body diagrams, both of which were ignored in previous calculations. We find that the chiral expansion for the ratio of the quasi-free (QF) to final-state-interaction (FSI) peaks in the final-state neutron spectrum converges well. Our third-order calculation of the full spectrum is already accurate to better than 5%. Extracting a_nn from the shape of the entire pi- d -> n n gamma spectrum using our calculation in its present stage would thus be possible at the +-0.8 fm level. A fit to the FSI peak only would allow an extraction of a_nn with a theoretical uncertainty of +-0.2 fm. The effects that contribute to these error bars are investigated. The uncertainty in the $nn$ rescattering wave function dominates. This suggests that the quoted theoretical error of +-0.3 fm for the most recent pi- d -> n n gamma measurement may be optimistic. The possibility of constraining the nn rescattering wave function used in our calculation more tightly--and thus reducing the error--is briefly discussed.
description: 35 pages, 14 eps figures, references and figure added, discussions of errors extended and clarified, improved conclusions, typos corrected, to be published in PRC
Coupled channel study of $K^+Λ$ photoproduction
Creators: name: Julia-Diaz, B.
name: Saghai, B.
name: Lee, T. -S. H.
name: Tabakin, F.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A coupled channel model with $γN$, $KY$ and $πN$ channels has been used to analyze the recent data of $γp \to K^+ Λ$. The non-resonant interactions within the subspace $KY \oplus πN$ are derived from effective Lagrangians using a unitary transformation method. The direct photoproduction reaction is obtained from a chiral constituent quark model with $SU(6)\otimes O(3)$ breaking. Missing baryon resonances issues are briefly discussed.
description: Part of the proceedings of the International Workshop on the Physics of Excited Baryons NSTAR05, 12-15 October 2005, Tallahassee, Florida, USA
Electrical conductivity of dispersions: from dry foams to dilute suspensions
Creators: name: Feitosa, K.
name: Marze, S.
name: Saint-Jalmes, A.
name: Durian, D. J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We present new data for the electrical conductivity of foams in which the liquid fraction ranges from two to eighty percent. We compare with a comprehensive collection of prior data, and we model all results with simple empirical formulæ. We achieve a unified description that applies equally to dry foams and emulsions, where the droplets are highly compressed, as well as to dilute suspensions of spherical particles, where the particle separation is large. In the former limit, Lemlich's result is recovered; in the latter limit, Maxwell's result is recovered.
Systems biology gives clues about the neurological impairment in MPSS
Creators: name: Silva, Gerda Cristal Villalba
name: Matte, Ursula
Publisher: name: F1000 Research Limited
Year: 2021

description: Mucopolysaccharidoses are lysosomal storage diseases involved in glycosaminoglycan degradation. Neurological damage is present in seven MPS types. The aims of this work were to identify potential biomarkers for neurological impairment in different types of MPS. The most relevant proteins in the networks and ontology terms related to neurological damage in MPS were identified and compared among diseases. We performed the clustering analysis for GSE111906(MPSI), GSE95224 (MPSII), GSE23075 (MPSIIIB), GSE15758 (MPSIIIB), and GSE76283 (MPSVII). Besides, we develop a user-friendly platform call MPSBase . Regarding biomarker discovery analysis, the top 10 genes were ranked according to the maximal clique centrality. For instance, for MPS I, the related ontologies was clathrin derived vesicle budding and clathrin-mediated endocytosis. MPS II top genes were related to the brain renin-angiotensin system. MPS IIIB top genes comprise the ontologies acetylation and chromatin regulation. The MPS IIIB top 10 genes were related to the activation of the mRNA cap-binding complex. Finally, MPS VIItop genes were present in the ontologies C-MYB transcription factor network. Moreover, we identified several immune system processes like adaptive and innate immune systems, Class I MHC mediated antigen processing and presentation; and activated TLR4 signaling across the different MPS types. Ontologies present in all the MPS, like axon guidance, Calcium signaling, PI3K-Akt, and Wnt signaling pathway. We hypothesize that these pathways are deranged because glycosaminoglycans play an essential role in the ECM, helping to regulate several processes. Systems biology approaches may help to understand the mechanisms of neuropathology in the different types of Mucopolysaccharidoses.
Evidence for alignment of the rotation and velocity vectors in pulsars
Creators: name: Johnston, Simon
name: Hobbs, G.
name: Vigeland, S.
name: Kramer, M.
name: Weisberg, J. M.
name: Lyne, A. G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present strong observational evidence for a relationship between the direction of a pulsar's motion and its rotation axis. We show carefully calibrated polarization data for 25 pulsars, 20 of which display linearly polarized emission from the pulse longitude at closest approach to the magnetic pole. Such data allow determination of the position angle of the linear polarisation which in turn reflects the position angle of the rotation axis. Of these 20 pulsars, 10 show an offset between the velocity vector and the polarisation position angle which is either less than 10\degr or more than 80\degr, a fraction which is very unlikely by random chance. We believe that the bimodal nature of the distribution arises from the presence of orthogonal polarisation modes in the pulsar radio emission. In some cases this orthogonal ambiguity is resolved by observations at other wavelengths so that we conclude that the velocity vector and the rotation axis are aligned at birth. Strengthening the case is the fact that 4 of the 5 pulsars with ages less than 3 Myr show this relationship, including the Vela pulsar. We discuss the implications of these findings in the context of the Spruit & Phinney (1998)\nocite{sp98} model of pulsar birth-kicks. We point out that, contrary to claims in the literature, observations of double neutron star systems do not rule out aligned kick models and describe a possible observational test involving the double pulsar system.
description: MNRAS, In Press
Additional file 1 of Climate and tree seed production predict the abundance of the European Lyme disease vector over a 15-year period
Creators: name: Bregnard, Cindy
name: Rais, Olivier
name: Voordouw, Maarten Jeroen
Publisher: name: figshare
Year: 2020
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology

description: Additional file 1: Section 1. Validation of the field-collected temperature data. Section 2. Validation of the field-collected relative humidity data. Section 3. Interpolation of the Climap-net climate data. Section 4. Full statistical analysis of the cumulative nymph abundance (CND) for the four elevation sites. Section 5. Full statistical analysis of the cumulative adult abundance (CAD) for the four elevation sites. Section 6. Full model selection table, support of each individual explanatory variable, and model-averaged parameter estimates of the nymph abundance for the three lowest elevation sites. Section 7. Assumptions of the linear models for the best models from the AIC-based model selection approach of the nymph and adult abundance. Section 8. Parameter estimates of the top model in the model selection table of the nymph abundance for the three lowest elevation sites. Section 9. Analysis of different time lags between the cumulative nymph abundance and beech masting. Section 10. Climate change over the 15-year study period. Section 11. Analysis of CND using Generalized Linear Models with negative binomial errors.
KUSHON DAVRI TARIXSHUNOSLIGINI YORITISHDA FOYDALANILADIGAN  OLIY VA O'RTA TA'LIM DARSLIKLARINING QIYOSIY TAHLILI
Creators: name: Xudoyberganov, Sabriddin
name: Qarshiyev, Fazliddin
name: Bahriddinov, Shahboz
Publisher: name: Zenodo
Year: 2024

description: Bu davr tarixini oʻrganish jarayoniga bir qator tarixchi-qadimshunoslar katta hissa qo’shganlar. Bularga B.A.Litvinskiy, E.A.Davidovich, G.G.Pugachenkova, B.YA.Staviskiy, L.I.Albaum, E.V.Rtveladze, E.V.Zeymal, B.A.Turgʻunov, Sh.R.Pidayev va boshqalar (Sagdullayev,2021. C. 262-263 b). Keyingi yillarda ham Oʻzbekiston tarixida bu davr tarixshunosligini oʻrganish va yoritilib berish masalasi boʻyicha doimiy ravishda tarixchi-olimlarimiz tomonidan juda koʻp tadqiqot ishlari qilinib kelinmoqda.
The dark clump near Abell 1942: dark matter halo or statistical fluke?
Creators: name: von der Linden, A.
name: Erben, T.
name: Schneider, P.
name: Castander, F. J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Weak lensing surveys provide the possibility of identifying dark matter halos based on their total matter content rather than just the luminous matter content. On the basis of two sets of observations carried out with the CFHT, Erben et al. (2000) presented the first candidate dark clump, i.e. a dark matter concentration identified by its significant weak lensing signal without a corresponding galaxy overdensity or X-ray emission. We present a set of HST mosaic observations which confirms the presence of an alignment signal at the dark clump position. The signal strength, however, is weaker than in the ground-based data. It is therefore still unclear whether the signal is caused by a lensing mass or is just a chance alignment. We also present Chandra observations of the dark clump, which fail to reveal any significant extended emission. A comparison of the ellipticity measurements from the space-based HST data and the ground-based CFHT data shows a remarkable agreement on average, demonstrating that weak lensing studies from high-quality ground-based observations yield reliable results.
description: 33 pages, 34 figures, submitted to A&A. Version with full resolution figures available at http://www.mpa-garching.mpg.de/~anja/aaclump.pdf
Three-dimensional modeling of Type Ia supernovae - The power of late time spectra
Creators: name: Kozma, Cecilia
name: Fransson, Claes
name: Hillebrandt, Wolfgang
name: Travaglio, Claudia
name: Sollerman, Jesper
name: Reinecke, Martin
name: Roepke, Friedrich Konrad
name: Spyromilio, Jason
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Late time synthetic spectra of Type Ia supernovae, based on three-dimensional deflagration models, are presented. We mainly focus on one model,"c3_3d_256_10s", for which the hydrodynamics (Roepke 2005) and nucleosynthesis (Travaglio et al. 2004) was calculated up to the homologous phase of the explosion. Other models with different ignition conditions and different resolution are also briefly discussed. The synthetic spectra are compared to observed late time spectra. We find that while the model spectra after 300 to 500 days show a good agreement with the observed Fe II-III features, they also show too strong O I and C I lines compared to the observed late time spectra. The oxygen and carbon emission originates from the low-velocity unburned material in the central regions of these models. To get agreement between the models and observations we find that only a small mass of unburned material may be left in the center after the explosion. This may be a problem for pure deflagration models, although improved initial conditions, as well as higher resolution decrease the discrepancy. The relative intensity from the different ionization stages of iron is sensitive to the density of the emitting iron-rich material. We find that clumping, with the presence of low density regions, is needed to reproduce the observed iron emission, especially in the range between 4000 and 6000 AA. Both temperature and ionization depend sensitively on density, abundances and radioactive content. This work therefore illustrates the importance of including the inhomogeneous nature of realistic three-dimensional explosion models. We briefly discuss the implications of the spectral modeling for the nature of the explosion.
description: 20 pages, 9 figures, resolution of Fig 1 is reduced to meet astro-ph file size restriction, submitted to A&A
Giant exciton Mott density in anatase TiO2
Creators: name: Baldini, Edoardo
name: Palmieri, Tania
name: Dominguez, Adriel
name: Rubio, Angel
name: Chergui, Majed
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Elucidating the carrier density at which strongly bound excitons dissociate into a plasma of uncorrelated electron-hole pairs is a central topic in the many-body physics of semiconductors. However, there is a lack of information on the high-density response of excitons absorbing in the near-to-mid ultraviolet, due to the absence of suitable experimental probes in this elusive spectral range. Here, we present a unique combination of many-body perturbation theory and state-of-the-art ultrafast broadband ultraviolet spectroscopy to unveil the interplay between the ultraviolet-absorbing two-dimensional excitons of anatase TiO$_2$ and a sea of electron-hole pairs. We discover that the critical density for the exciton Mott transition in this material is the highest ever reported in semiconductors. These results deepen our knowledge of the exciton Mott transition and pave the route toward the investigation of the exciton phase diagram in a variety of wide-gap insulators.
The relationships among cognitive processes, language experience and errors in Farsi speaking ESL adults
Creators: name: Farrokh, Kaveh
Publisher: name: University of British Columbia
Year: 2009

description: One of major goals of this study was to examine word reading, cognitive processes (syntactic, phonological, orthographic and memory processes) and errors (syntactic, phonological, and spelling) among bilingual speakers of Farsi and English and to compare their performance to native English speakers. The role of language experience (with LI and L2) with respect to word reading performance and the making of errors was also examined. Participants were 60 bilingual Farsi speaking ESL students (age range 19- 35). A comparison group of 57 native English speakers was also examined. Language experience was estimated by measuring age on arrival to Canada, length of residence in Canada, and amount of Farsi materials read while residing presently in Canada. MANOVA and follow-up ANOVAs indicated that bilinguals did significantly better than native English speakers on a phonological awareness task. This may partly be attributed to early training in phonics instruction from pre-school in Iran. Bilingual students had significantly lower scores on an orthographic awareness task. This was explained by a group of bilinguals who were poor readers of English (n=16) and were not familiar with English Roman based script. There were multivariate main effects for English reading ability. Good readers of English had significantly higher scores on all English reading related cognitive processes. There were multivariate main effects for Farsi reading ability. Follow-up ANOVAs indicated that good Farsi readers had significantly higher scores than poor Farsi readers on all Farsi reading related cognitive processes except for Farsi long term memory. Pratt analyses indicated that variation in English word reading performance and phonological errors could be attributed differentially to cognitive processes and language experience. Correlation analyses found significant relationships for all cognitive processes in English and their counterparts in Farsi. The partialling of language experience had no significant influence on the aforementioned results. These results indicate that there is a common underlying proficiency with respect to cognitive processes across Farsi and English. Recommendations for future studies such as investigations with cognitive processes in other Iranian languages are suggested.
The Swift Ultra-Violet/Optical Telescope
Creators: name: Roming, P. W. A.
name: Kennedy, T. E.
name: Mason, K. O.
name: Nousek, J. A.
name: Ahr, L.
name: Bingham, R. E.
name: Broos, P. S.
name: Carter, M. J.
name: Hancock, B. K.
name: Huckle, H. E.
name: Hunsberger, S. D.
name: Kawakami, H.
name: Killough, R.
name: Koch, T. S.
name: McLelland, M. K.
name: Smith, K.
name: Smith, P. J.
name: Soto, J. C.
name: Boyd, P. T.
name: Breeveld, A. A.
name: Holland, S. T.
name: Ivanushkina, M.
name: Pryzby, M. S.
name: Still, M. D.
name: Stock, J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The UV/Optical Telescope (UVOT) is one of three instruments flying aboard the Swift Gamma-ray Observatory. It is designed to capture the early (approximately 1 minute) UV and optical photons from the afterglow of gamma-ray bursts in the 170-600 nm band as well as long term observations of these afterglows. This is accomplished through the use of UV and optical broadband filters and grisms. The UVOT has a modified Ritchey-Chretien design with micro-channel plate intensified charged-coupled device detectors that record the arrival time of individual photons and provide sub-arcsecond positioning of sources. We discuss some of the science to be pursued by the UVOT and the overall design of the instrument.
description: 55 Pages, 28 Figures, To be published in Space Science Reviews
Additional file 3 of A seventeenth-century Mycobacterium tuberculosis genome supports a Neolithic emergence of the Mycobacterium tuberculosis complex
Creators: name: Sabin, Susanna
name: Herbig, Alexander
name: Vågene, Åshild J.
name: Ahlström, Torbjörn
name: Gracijela Bozovic
name: Arcini, Caroline
name: Kühnert, Denise
name: Bos, Kirsten I.
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 3: Supplementary information. Detailed supplements to the RESULTS and METHODS sections, including supplementary figures.
pi+- p differential cross sections at low energies
Creators: name: Denz, H.
name: Amaudruz, P.
name: Brack, J. T.
name: Breitschopf, J.
name: Camerini, P.
name: Clark, J. L.
name: Clement, H.
name: Felawka, L.
name: Fragiacomo, E.
name: Gibson, E. F.
name: Grion, N.
name: Hofman, G. J.
name: Jamieson, B.
name: Mathie, E. L.
name: Meier, R.
name: Moloney, G.
name: Ottewell, D.
name: Patarakin, O.
name: Patterson, J. D.
name: Pavan, M. M.
name: Piano, S.
name: Raywood, K.
name: Ristinen, R. A.
name: Rui, R.
name: Sevior, M. E.
name: Smith, G. R.
name: Stahov, J.
name: Tacik, R.
name: Wagner, G. J.
name: von Wrochem, F.
name: Yeomans, D. M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Differential cross sections for pi- p and pi+ p elastic scattering were measured at five energies between 19.9 and 43.3 MeV. The use of the CHAOS magnetic spectrometer at TRIUMF, supplemented by a range telescope for muon background suppression, provided simultaneous coverage of a large part of the full angular range, thus allowing very precise relative cross section measurements. The absolute normalisation was determined with a typical accuracy of 5 %. This was verified in a simultaneous measurement of muon proton elastic scattering. The measured cross sections show some deviations from phase shift analysis predictions, in particular at large angles and low energies. From the new data we determine the real part of the isospin forward scattering amplitude.
description: 13 pages, 5 figures. To appear in PLB
QCD at non-zero temperature and density from the lattice
Creators: name: Allton, C. R.
name: Ejiri, S.
name: Hands, S. J.
name: Kaczmarek, O.
name: Karsch, F.
name: Laermann, E.
name: Schmidt, Ch.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: The study of systems as diverse as the cores of neutron stars and heavy-ion collision experiments requires the understanding of the phase structure of QCD at non-zero temperature, T, and chemical potential, mu_q. We review some of the difficulties of performing lattice simulations of QCD with non-zero mu_q, and outline the re-weighting method used to overcome this problem. This method is used to determine the critical endpoint of QCD in the (mu_q,T) plane. We study the pressure and quark number susceptibility at small mu_q.
description: 5 pages, talk presented by C.R. Allton at the QCD Downunder Conference, Barossa Valley and Adelaide, March 2004
SUBSTITUTION BETWEEN WOOLS OF DIFFERENT FIBRE DIAMETER
Creators: name: Beare, Stephen
name: Meshios, Helen
name: Beare, Stephen
name: Meshios, Helen
Publisher: name: Unknown
Year: 1990
Subjects: Crop Production/Industries

description: The extent to which wools with different fibre characteristics can be substituted in textile production and consumption holds implications for Australia's international and domestic marketing policies. An analysis of price-induced substitution between Australian wools of different fibre diameters was conducted. Fibre diameter was used to parameterise cross-price relationships in order to estimate a system of demand equations for wools by diameter class. The results indicate that direct substitution takes place within a very limited range of fibre diameters. The use of product characteristics to parameterise price relationships may be extended to other graded commodities.
EXPLAINING THE DISTRIBUTION OF QUOTA RENTS FROM US CHEESE IMPORTS
Creators: name: Hornig, Ellen
name: Boisvert, Richard N.
name: Blandford, David
name: Hornig, Ellen
name: Boisvert, Richard N.
name: Blandford, David
Publisher: name: Unknown
Year: 1990
Subjects: International Relations/Trade

description: A theoretical model is outlined to illustrate how rents are generated from import quotas. The model is used to estimate rents from US cheese import quotas; rents are substantial. Relative rent capture by importers and exporters is explained by estimating an industrial organisation-type model. Unequal market power is important in explaining the distribution of rents between importers and exporters. Exporters tend to maintain price-cost margins and let importers capture a larger share as rent size increases.
PRODUCT CHARACTERISTICS AND ARBITRAGE IN THE AUSTRALIAN AND NEW ZEALAND WOOL MARKETS
Creators: name: Angel, C.
name: Beare, Stephen
name: Zwart, A.C.
name: Angel, C.
name: Beare, Stephen
name: Zwart, A.C.
Publisher: name: Unknown
Year: 1990
Subjects: subject: Crop Production/Industries
subject: Marketing
subject: FOS: Economics and business

description: The physical characteristics of wool are important determinants of its spinning properties, yarn quality and end use. The degree to which wools from different countries of origin may be substituted has important implications for the domestic marketing policies of Australia and New Zealand. The hypothesis examined in this paper is that the differences in wool prices can be explained by differences in the physical characteristics of the wool and that objective measures of these characteristics allow for effective arbitrage between these markets. The alternative hypothesis is that premiums or discounts exist owing to country of origin. A hedonic price analysis was conducted on wool prices in Australia and New Zealand using a balanced sample of sale lot data from the 1986-87 selling season. In the year examined, there was no evidence of any price premiums associated with country of origin.
Anomalous magnetoresistance behavior of CoFe nano-oxide spin valves at low temperatures
Creators: name: Ventura, J.
name: Sousa, J. B.
name: da Silva, M. A. Salgueiro
name: Freitas, P. P.
name: Veloso, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report magnetoresistance curves of CoFe nano-oxide specular spin valves of MnIr/CoFe/nano-oxidized CoFe/CoFe/Cu/CoFe/nano-oxidized CoFe/Ta at different temperatures from 300 to 20 K. We extend the Stoner-Wolfarth model of a common spin valve to a specular spin valve, introducing the separation of the pinned layer into two sublayers and their magnetic coupling across the nano-oxide. We study the effect of different coupling/exchange (between the antiferromagnetic layer and the bottom sublayer) field ratios on the magnetization and magnetoresistance, corresponding with the experimentally observed anomalous bumps in low temperature magnetoresistance curves.
description: 4 pages; 3 figures
TOWARDS A COMPARISON OF CHEMICAL-FREE AND CONVENTIONAL FARMING IN AUSTRALIA
Creators: name: Wynen, Els
name: Edwards, Geoff W.
name: Wynen, Els
name: Edwards, Geoff W.
Publisher: name: Unknown
Year: 1990
Subjects: Farm Management

description: The classes of benefits and costs, private and external, arising from a partial movement from conventional to chemical-free farming are considered, a report is provided on a comparison of physical and financial characteristics of chemical-free and conventional cereal/livestock farming in southeastern Australia, a key finding is that private net returns were similar for the two types of farmers, A favourable change in net externalities could be expected from a movement towards chemical-free farming, policy implications relating to the taxation of chemical use in agriculture, and to research, extension and marketing are discussed.
Search for Leptoquarks and Compositeness at D0
Creators: name: Titov, Maxim
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: In this paper searches are presented for the pair production of first and second generation scalar leptoquarks and limits are given on the quark-lepton compositeness scale from proton-antiproton collision data at a center-of-mass energy 1.96 TeV, collected with Run II D0 Detector in 2002-2004. No evidence for a leptoquark signal has been observed. From the upper bounds on the product of cross section times branching ratio beta=Br(LQ to lj), a lower mass limits of M(LQ1) > 241 GeV and M(LQ2) > 247 GeV for the first and second LQ generation are set for beta=1. These results, combined with those obtained by D0 in Run I at a center-of-mass energy of 1.8 TeV, allow to exclude scalar LQ masses up to 256 GeV and 251 GeV (for beta=1) for the first and second generation, respectively. The dilepton mass spectra in pp -> l+l-+X interactions are studied using dielectron (dimuon) data samples, corresponding to an integrated luminosity of 271 pb-1 (406 pb-1). The mass spectra being a probe for new physics are examined for new interactions of quarks and leptons from a common composite structure. No excess of events is found over the expectation from Standard Model processes. The current experimental lower limits on the compositeness scale vary, for different chirality channels, from 3.6 to 9.1 TeV for the (eeqq) and from 4.2 to 9.8 TeV for the (mumuqq) contact interaction.
description: Presented at the 2005 International Europhysics Conference on High Energy Physics (EPS2005), Lissabon, Portugal, 21-27 July 2005