cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Variational ground states of the two-dimensional Hubbard model
Creators: name: Baeriswyl, D.
name: Eichenberger, D.
name: Menteshashvili, M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Recent refinements of analytical and numerical methods have improved our understanding of the ground-state phase diagram of the two-dimensional (2D) Hubbard model. Here we focus on variational approaches, but comparisons with both Quantum Cluster and Gaussian Monte Carlo methods are also made. Our own ansatz leads to an antiferromagnetic ground state at half filling with a slightly reduced staggered order parameter (as compared to simple mean-field theory). Away from half filling, we find d-wave superconductivity, but confined to densities where the Fermi surface passes through the antiferromagnetic zone boundary (if hopping between both nearest-neighbour and next-nearest-neighbour sites is considered). Our results agree surprisingly well with recent numerical studies using the Quantum Cluster method. An interesting trend is found by comparing gap parameters (antiferromagnetic or superconducting) obtained with different variational wave functions. They vary by an order of magnitude and thus cannot be taken as a characteristic energy scale. In contrast, the order parameter is much less sensitive to the degree of sophistication of the variational schemes, at least at and near half filling.
description: 18 pages, 4 figures, to be published in New J. Phys
Evidence for polarons in iron pnictides of the Ln-1111 and AE-122 families
Creators: name: Nunez-Regueiro, Manuel
Publisher: name: arXiv
Year: 2009
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Examination of the electrical resistivities of iron pnictides shows that they can be accounted by conduction by polarons. Their activation energies show a linear behaviour with the critical temperatures of the spin density waves (SDW), T*, as both vary with pressure. The slope matches the ratio SDW gap to T*, while the intercept can be related to the transition temperature of the lattice distortion, T0. An adapted Landau free energy predicts the observed order of the transitions, according to which is higher, T* or T0. Simple arguments favour combined Jahn-Teller antiferromagnetic bipolarons.
description: 14 pages with 4 Figures
Gravitational wave background from neutron star phase transition
Creators: name: de Araujo, J. C. N.
name: Marranghello, G. F.
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the generation of a stochastic gravitational wave (GW) background produced by a population of neutron stars (NSs) which go over a hadron-quark phase transition in its inner shells. We obtain, for example, that the NS phase transition, in cold dark matter scenarios, could generate a stochastic GW background with a maximum amplitude of $h_{\rm BG} \sim 10^{-24}$, in the frequency band $ν_{\rm{obs}} \simeq 20-2000 {\rm Hz}$ for stars forming at redshifts of up to $z\simeq 20.$ We study the possibility of detection of this isotropic GW background by correlating signals of a pair of Advanced LIGO observatories.
description: 17 pages, 5 figures
Enhancement of semiconducting single-wall carbon nanotubes photoluminescence
Creators: name: Gaufrès, Etienne
name: Izard, Nicolas
name: Vivien, Laurent
name: Kazaoui, Saïd
name: Marris-Morini, Delphine
name: Cassan, Eric
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Photoluminescence properties of semiconducting single wall carbon nanotubes (s-SWNT) thin films with different metallic single wall carbon nanotubes (m-SWNT) concentrations are reported. s-SWNT purified samples are obtained by polymer assisted selective extraction. We show that a few m-SWNT in the sample generates a drastic quenching of the emission. Therefore, highly purified s-SWNT films are a strongly luminescent material and a good candidate for future applications in photonics, such as near infrared emitters, modulators and detectors.
Scenario for Fractional Quantum Hall Effect in Bulk Isotropic Materials
Creators: name: Burnell, F. J.
name: Bernevig, B. Andrei
name: Arovas, D. P.
Publisher: name: arXiv
Year: 2008
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 possibility of a strongly correlated Fractional Quantum Hall (FQH) state in bulk three dimensional isotropic (not layered) materials. We find that a FQH state can exist at low densities only if it is accompanied by a staging transition in which the electrons re-organize themselves in layers, perpendicular to the magnetic field, at distances of order the magnetic length apart. The Hartree energy associated to the staging transition is off-set by the correlation Fock energy of the 3D FQH state. We obtain the phase diagram of bulk electrons in a magnetic field subject to Coulomb interactions as a function of carrier density and lattice constant. At very low densities, the 3D FQH state exhibits a transition to a 3D Wigner crystal state stabilized by phonon correlations.
Experimental study of high energy electron interactions in a superconducting aluminum alloy resonant bar
Creators: name: Barucci, M.
name: Bassan, M.
name: Buonomo, B.
name: Cavallari, G.
name: Coccia, E.
name: D'Antonio, S.
name: Fafone, V.
name: Ligi, C.
name: Lolli, L.
name: Marini, A.
name: Mazzitelli, G.
name: Modestino, G.
name: Pizzella, G.
name: Quintieri, L.
name: Risegari, L.
name: Rocchi, A.
name: Ronga, F.
name: Valente, P.
name: Ventura, G.
name: Vinko, S. M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Peak amplitude measurements of the fundamental mode of oscillation of a suspended aluminum alloy bar hit by an electron beam show that the amplitude is enhanced by a factor ~3.5 when the material is in the superconducting state. This result is consistent with the cosmic ray observations made by the resonant gravitational wave detector NAUTILUS, made of the same alloy, when operated in the superconducting state. A comparison of the experimental data with the predictions of the model describing the underlying physical process is also presented.
The labour protection bias of the Canadian tariff structure
Creators: name: Tully, Douglas Blair
Publisher: name: University of British Columbia
Year: 2011

description: In recent years much criticism has been levelled at the so-called labour bias of protection in the advanced economies. A series of empirical studies have attempted to test the hypothesis that United States tariffs are designed to provide higher rates of protection for labour intensive manufacturing industries. In Canada the assumption of a labour bias has been implicit in much of the literature, but no study had previously been undertaken to collaborate this claim. Theoretical justification of the labour bias argument is found in the Samuelson-Stolper model. From this base certain measures of labour intensity and of protection were developed. Several primary factor inputs were introduced. In addition to the quantity of labour input, an attempt was made to identify qualitative differences in the labour factor. In addition, physical capital and resources were considered as important primary factors. There was some question of the relevance of some of these, particularly the physical capital and resource factors, in comparative advantage arguments concerning Canadian trade in manufactured goods. Certain conceptual problems regarding the use of "direct" versus "direct-plus-indirect" factor inputs were also involved in this part of the analysis. Two measures of protection were identified, nominal tariff rates and effective protection rates. Since the study chose to utilize only "direct" factor inputs the latter measure of protection was considered to be more relevant. Effective rates are a relatively new concept, however, and so the more common measure was also included. The results of the analysis indicated that there was, in fact, a significant labour bias in the structure of the Canadian tariff on manufactured goods. The evidence suggested that when the primary factors were combined the bias was stronger than when any one factor was considered alone relative to labour. The evidence also indicated that two primary factors, human capital (the quality of labour) and resources, relative to labour appeared to account for the bias. Unexplainably, the results pointed to a somewhat stronger relationship when nominal rates rather than effective rates were considered.
Search for Astrophysical Neutrino Point Sources at Super-Kamiokande
Creators: name: Thrane, E.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: It has been hypothesized that large fluxes of neutrinos may be created in astrophysical "cosmic accelerators." The primary background for a search for astrophysical neutrinos comes from atmospheric neutrinos, which do not exhibit the pointlike directional clustering that characterizes a distant astrophysical signal. We perform a search for neutrino point sources using the upward-going muon data from three phases of operation (SK-I, SK-II, and SK-III) spanning 2623 days of live time taken from April 1, 1996 to August 11, 2007. The search looks for signals from suspected galactic and extragalactic sources, transient sources, and unexpected sources. We find interesting signatures from two objects--RX J1713.7-3946 (97.5% CL) and GRB 991004D (95.3% CL)--but the signatures lack compelling statistical significance given trial factors. We set limits on the flux and fluence of neutrino point sources above energies of 1.6 GeV.
title: The Relationship of Delinquent Types in an Industrial School Setting to Personality-Motivation Profiles
Creators: name: Carlson, Lester A.
Publisher: name: Utah State University
Year: 1967

description: It is to be observed that delinquent children are socially and to a degree, emotionally maladjusted. This social and emotional maladjustment includes:
I. Children who are extremely disruptive, destructive, hostile, impulsive and delinquent.
II. Children who are immature, overfearful, withdrawn, uncommunicative, apathetic, and readily thrown off balance.
III. Children of good intelligence but with severe learning disabilities resulting in poor academic achievement. One rarely finds such a child who does not also manifest a more general pattern of emotional disorders.
IV. Children with severe psychic disorders as diagnosed by clinicians.
The adherents of the psychiatric approach to delinquency have typically regarded antisocial behavior as a result of emotional disturbance in an individual. All deviant behavior is seen as a make-up of something in the individual which may be labeled variously as personal disorganization, intrapsychic conflict, or "maladjusted personality," and this psychological "sickness" interferes with the normal development of conformity (Aichhorn, 1935 ; Fenichel, 1945; Karpman, 1935; Redland and Wineman, 1951, 1952; Zilborg, 1943).
There is an extensive overlapping and interchanging of symptoms among these children. However, it was noted from a review of the literature and from a study of a fairly large sample at the Utah State Industrial School (here-in-after referred to as SIS) that there are several reasonably well differentiated fundamental patterns of behavior displayed by maladjusted children.
Injectable Antipsychotics Efficacy in Schizophrenia and Schizoaffective: A Mixed Treatment Comparison
Creators: name: Rodriguez, Ryan
Publisher: name: University of Illinois at Chicago
Year: 2022
Subjects: Uncategorized

description: Objective: To assess the comparative effects among long-acting injectable (LAI) antipsychotics (APs) on Positive and Negative Syndrome Scale (PANSS) score in adults with schizophrenia or schizoaffective disorder. Methods: PubMed, Embase, PsycInfo, CENTRAL, and Clinicaltrials.gov were searched on July 10, 2021 for randomized controlled trials (RCTs) ≥8 weeks in duration that reported PANSS at short- (8 to 24 weeks) and long-term (>24 weeks) durations for comparisons of LAI APs with any of the following: placebo, oral APs, or LAI APs. Mixed treatment comparisons were performed using a Bayesian framework. Confidence in the estimates was assessed using the Confidence in Network Meta-Analysis (CINeMA) framework. Results: Thirty trials were included, 20 of which were rated at high ROB due to missing outcome data. Nearly all comparisons were based on very low certainty evidence due to within-study and reporting biases in short-term analyses, and within-study bias, reporting bias, imprecision, heterogeneity, and incoherence in long-term analyses. For short-term effects on PANSS (20 trials; 8,618 patients), all treatments were superior to placebo; differences were not detected among active treatments. The highest-ranking interventions were LAI aripiprazole lauroxil, oral olanzapine, and LAI olanzapine pamoate; however, there was major imprecision (median rank, 95% credible interval [CrI], 2, 1 to 10; 3, 1 to 7; and 4, 1 to 9; respectively). For long-term effects (10 trials; 4,595 patients), no differences were detected in any comparisons with placebo or between active treatments. Median rankings and 95% CrIs were again imprecise and highest for oral risperidone, LAI aripiprazole lauroxil, and a composite control group of any oral AP (2, 1 to 9; 3, 1 to 9; and 3, 1 to 9; respectively). Results were similar in sensitivity analyses excluding trials with a control arm of any oral AP or with a randomized withdrawal design. Meta-regression using baseline PANSS did not improve model fit. Conclusion: Very low-certainty estimates indicated no differences among LAI APs for short or long term effects on PANSS in schizophrenia or schizoaffective disorder. Further study is needed to define comparative efficacy of LAI APs with greater certainty, optimally in trials with active control arms, low attrition, and independent funding.
Pass-through core measurements of magnetic susceptibility and natural gamma ray, New Jersey Coastal Plain
Creators: name: Metzger, John M.
name: Remer, Steven C.
name: Miller, Kenneth G.
name: Kent, Dennis V.
name: Van Fossen, Mickey C.
name: Browning, James V.
name: Goldberg, David S.
Publisher: name: Columbia University
Year: 1997
Subjects: subject: Geophysics
subject: FOS: Earth and related environmental sciences
subject: Oceanography

description: We measured magnetic susceptibility (MS) and core gamma radiation (CGR) on 3162 ft (963.9 m) of core recovered by the New Jersey Coastal Plain Drilling Project (Ocean Drilling Program Leg 150X) at Island Beach, Atlantic City, and Cape May, New Jersey. Integration of core lithology, core/log (MS and CGR), and downhole gamma-ray (DGR) log studies have (1) documented the core/log expression of previously determined unconformities; (2) shown that MS is a proxy for glauconite percent in the New Jersey Coastal Plain; (3) illustrated a major change in sedimentation from shelfal glauconite evidenced by very high MS values to deltaic deposition with low MS values in the earliest Miocene (ca. 22 Ma); (4) shown that comparison of MS and CGR with DGR can be used to resolve discrepancies in depth between downhole logs and cores; and (5) shown that the CGR detects some zones noted in the lithology (e.g., phosphate rich zones) that are not resolved in the DGR.
Pulling an adsorbed polymer chain off a solid surface
Creators: name: Bhattacharya, S.
name: Milchev, A.
name: Rostiashvili, V. G.
name: Vilgis, T. A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The thermally assisted detachment of a self-avoiding polymer chain from an adhesive surface by an external force applied to one of the chain ends is investigated. We perform our study in the "fixed height" statistical ensemble where one measures the fluctuating force, exerted by the chain on the last monomer when a chain end is kept fixed at height $h$ over the solid plane at different adsorption strength $ε$. The phase diagram in the $h - ε$ plane is calculated both analytically and by Monte Carlo simulations. We demonstrate that in the vicinity of the polymer desorption transition a number of properties like fluctuations and probability distribution of various quantities behave differently, if $h$ rather than $f$ is used as an independent control parameter.
description: 17 pages, 9 pictures
Current large deviations in a driven dissipative model
Creators: name: Bodineau, T.
name: Lagouge, M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider lattice gas diffusive dynamics with creation-annihilation in the bulk and maintained out of equilibrium by two reservoirs at the boundaries. This stochastic particle system can be viewed as a toy model for granular gases where the energy is injected at the boundary and dissipated in the bulk. The large deviation functional for the particle currents flowing through the system is computed and some physical consequences are discussed: the mechanism for local current fluctuations, dynamical phase transitions, the fluctuation-relation.
title: Relationship Between Self-Concept Discrepancies and the Expression of Need Achievement in Children
Creators: name: Griggs, Ian
Publisher: name: Utah State University
Year: 1967

description: The present study was designed to test the hypothesis that a significant relationship exists between self-concept discrepancies and expressed need for achievement.
A self-concept discrepancy score was obtained and a low and high discrepancy group was isolated.
Expressed need for achievement was measured by the use of the Thematic Apperception Test and scored according to the Atkinson method.
Mean comparisons of need achievement scores of subjects whose discrepancies between actual and ideal self-concept were in the upper or lower one~third of the distribution were found not to be significant at the 5 percent level of confidence.
A Simple Comptonization Model
Creators: name: Steiner, James F.
name: Narayan, Ramesh
name: McClintock, Jeffrey E.
name: Ebisawa, Ken
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present an empirical model of Comptonization for fitting the spectra of X-ray binaries. This model, "simpl", has been developed as a package implemented in XSPEC. With only two free parameters, simpl is competitive as the simplest empirical model of Compton scattering. Unlike other empirical models, such as the standard power-law model, simpl incorporates the basic physics of Compton scattering of soft photons by energetic coronal electrons. Using a simulated spectrum, we demonstrate that simpl closely matches the behavior of physical Comptonization models which consider the effects of optical depth, coronal electron temperature, and geometry. We present fits to RXTE spectra of the black-hole transient H1743-322 and a BeppoSAX spectrum of LMC X-3 using both simpl and the standard power-law model. A comparison of the results shows that simpl gives equally good fits and a comparable spectral index, while eliminating the troublesome divergence of the standard power-law model at low energies. Importantly, simpl is completely flexible and can be used self-consistently with any seed spectrum of photons. We show that simpl - unlike the standard power law - teamed up with diskbb (the standard model of disk accretion) gives results for the inner-disk radius that are unaffected by strong Comptonization, a result of great importance for the determination of black hole spin via the continuum-fitting method.
description: Submitted to PASP. 26 pages (manuscript) including 5 figures and 2 tables. The text has been revised and the comparison to compTT updated to a more appropriate physical regime
Synfolding and prefolding magnetizations in the Upper Devonian Catskill Formation of eastern Pennsylvania
Creators: name: Miller, John D.
name: Kent, Dennis V.
Publisher: name: Columbia University
Year: 1986
Subjects: subject: Geophysics
subject: FOS: Earth and related environmental sciences

description: The Upper Devonian Catskill Formation was sampled for paleomagnetic study in east-central Pennsylvania (41°N, 76°W). In one area the dominant component of magnetization (SE) is revealed over a broad spectrum of demagnetization temperatures ranging to at least 660°C. A conventional fold test is positive at the 99% confidence level. However, statistical analysis of dispersion with incremental bedding tilt correction shows a significant peak in the precision parameter after about 3/4 unfolding. The magnetization is therefore secondary, with a mean direction of D = 166.6°, I = -1.8°. The corresponding pole position (48.1°N, 124.1°E, a95 = 4.0°) is indistinguishable from paleopoles from earlier studies of the Catskill, which therefore can also be regarded as representing Permo-Carboniferous remagnetizations. A second component of magnetization (SW, pole position 32.8°N, 90.0°E, a95 = 7.2°) with discrete unblocking temperature spectra and southwesterly declination was isolated in a few samples from the first area and in most samples from a second area. A prefolding origin of this magnetization is supported by a positive fold test on five samples from the first area. If this magnetization does represent a Devonian magnetization then the true paleolatitude for east-central Pennsylvania is 16° +/- 7.2°S, which is consistent with the paleolatitude observed in many of the Upper Devonian rock units in the Acadia region, although inconsistent with others. The question of the position of Acadia relative to North America in the Upper Devonian is therefore still open.
Soliton solutions of 3D Gross-Pitaevskii equation by a potential control method
Creators: name: Fedele, Renato
name: Eliasson, Bengt
name: Haas, Fernando
name: Shukla, Padma Kant
name: Jovanovic, Dusan
name: De Nicola, Sergio
Publisher: name: arXiv
Year: 2009
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We present a class of three-dimensional solitary waves solutions of the Gross-Pitaevskii (GP) equation, which governs the dynamics of Bose-Einstein condensates (BECs). By imposing an external controlling potential, a desired time-dependent shape of the localized BEC excitation is obtained. The stability of some obtained localized solutions is checked by solving the time-dependent GP equation numerically with analytic solutions as initial conditions. The analytic solutions can be used to design external potentials to control the localized BECs in experiment.
description: 11 pages, 5 figures, submitted to Phys. Rev. E
pi^- decay rates of p-shell hypernuclei revisited
Creators: name: Gal, Avraham
Publisher: name: arXiv
Year: 2009
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Explicit expressions for the parity-violating s-wave and the parity-conserving p-wave contributions to pi- weak-decay rates of Lambda hypernuclei in the 1p shell are given in the weak-coupling limit, to update previous shell-model calculations and to compare with recent pi- spectra and total decay rates measured by the FINUDA Collaboration. A useful sum rule for the summed strength of Lambda_{1s} --> pi- + proton_{1p} weak decays is derived. Fair agreement between experiment and calculations is reached, using the primary s-wave amplitude and Cohen-Kurath nuclear wavefunctions. The role of the p-wave amplitude is studied in detail for Lambda-15N and found to be secondary. Previous assignments of ground-state spin-parity values are confirmed and a new assignment is made, spin-parity 3/2+ for Lambda-15N, based on the substantial suppression calculated here for spin-parity 1/2+.
description: published version; new footnote 2 added in proof; related to recent FINUDA data, arXiv:0905.0623 [nucl-ex] submitted to Phys. Lett. B
Middle Triassic magnetostratigraphy and biostratigraphy from the Dolomites and Greece
Creators: name: Muttoni, Giovanni
name: Kent, Dennis V.
name: Brack, Peter
name: Nicora, Alda
name: Balini, Marco
Publisher: name: Columbia University
Year: 1997
Subjects: subject: Geophysics
subject: FOS: Earth and related environmental sciences

description: Magnetostratigrapic and biostratigraphic data across the Anisian/Ladinian (Middle Triassic) boundary were obtained from the Frötschbach/Seceda section from the Dolomites region of northern Italy, and the Vlichos section from the Greek island of Hydra, where the Aghia Triada published section was also resampled. The Frötschbach/Seceda section includes two radiometrically dated (U Pb) tuff levels and covers two of the three chief candidates for the position of the base of the Ladinian, namely at the base of the Secedensis Zone or the subsequent Curionii Zone. The Aghia Triada section yields biochronological evidence for the base of the Secedensis Zone, whose significance is, however, critically discussed in the light of the magnetostratigraphic correlation with Frötschbach/Seceda. The Vlichos section can be correlated with Aghia Triada and Frötschbach/Seceda by means of magnetic polarity stratigraphy and sparse fossil occurrences. The satisfactory correlation of the magnetozones allows us to construct a composite geomagnetic polarity sequence tied to Tethyan ammonoid and conodont biostratigraphy for about a 2.4 Myr interval across the Anisian/Ladinian boundary.
Kinematical and Physical properties of a 700 pc large bubble in NGC 6946
Creators: name: Gil, M. Carmen Sánchez
name: Alfaro, Emilio J.
name: Pérez, Enrique
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The galaxy NGC 6946 contains a gas-star complex of 700 pc in diameter which appears populated by tens of young stellar clusters, and a Super Star Cluster (SSC) as massive as 10$^6$ M$\odot$. The ionized gas, as drawn by the H$α$ emission, delineates an almost circular shape which we show here to be in expansion. Previous studies have analyzed the stellar component of the complex, as well as the structure of the atomic and ionized gas; these analyses were restricted to the blueshifted component along the whole extent of the bubble or to a smaller inner region where both sides of an expanding bubble were seen. In this work we present a complete spectroscopic study of this object for two position angles crossing each other close to the young massive SSC. We have obtained new data with a spectral resolution six times better than previous spectroscopic studies, taken under atmospheric conditions better than those previously reported, allowing us to detect the approaching and receding walls of one the largest bubbles in external galaxies ever studied in detail. The kinematical analysis shows a large expanding bubble, whose walls appear to be highly structured with superposed smaller shells, likely originated as the result of star forming events occurring at the edges of the larger scale shell, a la Huygens. We also study some diagnostic diagrams of the ionized gas and conclude that most of the observed ionization is originated by photons from hot stars, but with clear evidence that some of the gas is shock ionized. This peculiar complex is an excellent laboratory for the analysis of the interaction and feedback between the gas where the stars were formed and the young and massive generation of new born stars.
description: 41 pages, 12 figures
Improving the Performance of 3D-Stacked DRAM Based Main Memory System
Creators: name: Rafique, Muhammad Muzamal
Publisher: name: University of Illinois at Chicago
Year: 2022
Subjects: Uncategorized

description: Modern data-intensive applications running concurrently on multiple processing cores require high memory bandwidth based on the size of data-set and locality found within the application. Traditional organization of DRAM modules cannot cope with this increasing memory bandwidth requirement. 3D- stacked DRAM modules provide unique advantages like huge bandwidth, memory-level parallelism, and logic area. In this thesis, we analyze the application’s run-time memory access behavior and propose novel memory management schemes that improve the system performance and energy efficiency by taking advantage of 3D-stacked DRAM architecture. First, we present CAMPS, a conflict-aware memory- side prefetching scheme proposed for Hybrid Memory Cube based main memory system. Secondly, we propose FAPS-3D, a feedback-directed adaptive page management scheme for 3D-stacked DRAM, that analyzes application’s high and low locality phases and recommends open- or close-page policy for the DRAM banks. Next, we present a memory-side prefetching scheme incorporating dynamic page mode in 3D-stacked DRAM, which categorizes the open- and close-page phases of the running application and suggests the prefetching policy that is optimized for the corresponding phase. Finally, we propose a dynamic page policy using perceptron learning, where perceptron learning is used to get deeper insight into the application’s long term memory access behavior and a perceptron is trained to predict the page open or close decision for the future accesses. Our evaluation shows that these proposed schemes improve the performance and energy efficiency of the 3D-stacked DRAM based main memory systems with a trivial area overhead.
Paleomagnetic evidence for Neogene tectonic rotations in the northern Apennines, Italy
Creators: name: Muttoni, Giovanni
name: Argnani, Andrea
name: Kent, Dennis V.
name: Abrahamsen, Niels
name: Cibin, Ubaldo
Publisher: name: Columbia University
Year: 1998
Subjects: subject: Geophysics
subject: FOS: Earth and related environmental sciences

description: Paleomagnetic analysis was carried out in the northern Apennines on Eocene to Pliocene Epiligurian units. Five Early Miocene and two Middle Miocene sites yielded dual polarity site-mean directions which show signs of clustering after correction for bedding tilt. These likely primary magnetizations, in conjunction with data from the literature, give an overall mean Late Oligocene-Middle Miocene paleomagnetic pole which shows a large and significant counterclockwise rotation of 52° (±â‰ˆ8°) with respect to the Africa reference paleopoles (or a similar amount of rotation with respect to the coeval Europe reference paleopole). However, this paleopole falls close to the roughly coeval paleopole for Corsica-Sardinia, which is here calculated by averaging data from the literature. Three additional Early Miocene sites from an area west of Parma affected by Pliocene tectonics yielded site-mean directions which pass the fold test and are rotated counterclockwise by a lesser amount than the rest of the Miocene sites. Most of the remaining sites bear paleomagnetic directions acquired after tilting during a recent phase of remagnetization. We suggest that the large-scale rotation observed in the northern Apennines was associated with the motion of the Corsica-Sardinia block within the general context of the Africa-Europe relative motions. A compilation of published data from the central Apennines also shows a differential rotation of the northern relative to the southern Umbria belt which occurred after the motion of Corsica-Sardinia and may have been due to pivoting of the northern Umbria belt against a deep-seated lineament during the non-rotational opening of the Tyrrhenian Sea.
Ultrafast control of nuclear spins using only microwave pulses: towards switchable solid-state quantum gates
Creators: name: Mitrikas, George
name: Sanakis, Yiannis
name: Papavassiliou, Georgios
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We demonstrate the control of the alpha-proton nuclear spin, I=1/2, coupled to the stable radical CH(COOH)2, S=1/2, in a gamma-irradiated malonic acid single crystal using only microwave pulses. We show that, depending on the state of the electron spin mS=+/-1/2, the nuclear spin can be locked in a desired state or oscillate between mI=+1/2 and mI=-1/2 on the nanosecond time scale. This approach provides a fast and efficient way of controlling nuclear spin qubits and also enables the design of switchable spin-based quantum gates by addressing only the electron spin.
description: 5 pages, 4 figures
ANALYZES OF THE FORMATION OF THE SPIRITUALITY OF TEENAGERS BASED ON SOCIO-PSYCHOLOGICAL AND MODERN METHODS
Creators: name: Mnajatdinova, Juldiz
Publisher: name: Zenodo
Year: 2023

description: In this study, in the formation of the moral and spiritual state of adolescents new information on the analysis of social psychological characteristics is presented. information collected on the basis of research on the formation of education on the basis of which this study was carried out. The main goals and objectives of our research are to study the socio-psychological conditions of the formation of the spirituality of adolescents and analyze them based on modern methods. we studied the psychological views and approaches of psychologists in this regard. Characteristics of social formation of teenagers' spirituality are analyzed. Results obtained as a result of discussion of pedagogical-psychological features of the research conclusions are drawn.
title: Variation in the Order of Presentation of Cues as One Variable in Concept Organization
Creators: name: Genasci, John E.
Publisher: name: Utah State University
Year: 1967

description: In the experiment, with forty-eight students as subjects, a series of nonsense syllables (DAX, MEF, TOV, VIC, YOP, ZIP, and ZIL) were to be associated with four geometric figures. The task was so arranged that Zip applied to all figures, Dax and Vic to subsets of two figures each, and the remaining were individual labels. In each of three experiments there was an experimental group that received pre-response cueing by means of an analogy which involved hierarchic concepts in the same general form, i. e ., animal, wild, tame, and individual names.
The results suggest that the order and timing of the presentation of the cues were varied in the three separate experiments. Groups that received prior analogy versus groups not given the analogy were more successful in ordering the random stimuli. Further, the order of presentation of the cues had no significant effect on the ability of the subjects to order the random stimuli.
Local-indigenous knowledge on disaster risk reduction: Insights from the Mamanwa indigenous peoples in Basey, Samar after Typhoon Haiyan in the Philippines
Creators: name: Cuaton, Ginbert
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 410103
subject: Human impacts of climate change and human adaptation

description: There's a growing recognition by scholars that local-indigenous knowledge can make important contributions to both disaster risk reduction and managing environmental change. This paper interrogated the local-indigenous knowledge and practices of the Mamanwa indigenous peoples in Basey, Samar, after Typhoon Haiyan struck the Philippines in November 2013. Data for this study were drawn from ethnographic fieldwork from late 2018 to early 2020. This paper is broken up into three parts. The first part presents how Mamanwas utilize their local-indigenous knowledge in times of disaster in relation to 1) emergency evacuation and post-Haiyan relocation; 2) food and livelihood security strategies; 3) weather forecasts from animals, and 4) celestial bodies, and 5) the role of community elders as local hazard forecasters. Next, the study analyzes the lack of regard to integrate local-indigenous knowledge into disaster risk reduction (DRR) state policies such as the Disaster Risk Reduction and Management Act and the Indigenous Peoples Rights Act as well as the low regard on local-indigenous knowledge of non-indigenous people manifested in social prejudice and discrimination. Despite these, local DRR practitioners find innovative ways to integrate local-indigenous knowledge in local programs and activities. Following Haiyan, the elderly Mamanwas also dedicated special activities to ensure the transmission and preservation of their local-indigenous knowledge in the younger members of their community. The authors argue that in addition to the inclusion and better articulation of local-indigenous knowledge in relevant State policies, the meaningful participation of local communities including Indigenous Peoples should be the focus of local DRR actors.
Does Security Transaction Volume-Price Behavior Resemble a Probability Wave?
Creators: name: Shi, Leilei
Publisher: name: arXiv
Year: 2010
Subjects: subject: Trading and Market Microstructure (q-fin.TR)
subject: Statistical Finance (q-fin.ST)
subject: FOS: Economics and business

description: Motivated by how transaction amount constrain trading volume and price volatility in stock market, we, in this paper, study the relation between volume and price if amount of transaction is given. We find that accumulative trading volume gradually emerges a kurtosis near the price mean value over a trading price range when it takes a longer trading time, regardless of actual price fluctuation path, time series, or total transaction volume in the time interval. To explain the volume-price behavior, we, in terms of physics, propose a transaction energy hypothesis, derive a time-independent transaction volume-price probability wave equation, and get two sets of analytical volume distribution eigenfunctions over a trading price range. By empiric test, we show the existence of coherence in stock market and demonstrate the model validation at this early stage. The volume-price behaves like a probability wave.
description: 20 pages, 6 figures, and 2 Appendixes
Oligocene magnetostratigraphy from Equatorial Pacific sediments (ODP Sites 1218 and 1219, Leg 199)
Creators: name: Lanci, Luca
name: Pares, Josep M.
name: Channell, James E. T.
name: Kent, Dennis V.
Publisher: name: Columbia University
Year: 2005
Subjects: subject: Geophysics
subject: FOS: Earth and related environmental sciences

description: An Oligocene magnetostratigraphy from ODP Sites 1218 and 1219 (Equatorial Pacific) has been obtained by measurements made on u-channel samples, augmented by about 221 discrete samples. U-channel samples were measured at 1 cm intervals and were stepwise demagnetized in alternating fields (AF) up to a maximum peak field of 80 mT. The magnetization directions were determined at 1 cm intervals by principal component analysis of demagnetization steps in the 20 to 60 mT peak field range. A similar treatment was carried out on the discrete samples, which confirmed the results obtained with u-channel measurements. Sites 1218 and 1219 were precisely correlated based on multisensor track, paleontological and shipboard magnetostratigraphic data; this correlation is substantiated by u-channel measurements. Although the magnetostratigraphy obtained from the u-channels is similar to the interpretation deduced from shipboard measurements based on blanket demagnetization at peak AF of 20 mT, the u-channel results are substantially more robust since many interpretative uncertainties are resolved by the stepwise demagnetization and higher stratigraphic resolution. The temporal resolution of u-channel-based magnetic stratigraphy in the Oligocene section of Sites 1218 and 1219 is better than 5 kyr, and it is therefore suitable for detection of brief polarity subchrons. However, in spite of the high resolution, we did not find any reversals corresponding to the numerous cryptochrons identified in this time span by Cande and Kent [S.C. Cande, D.V. Kent, Revised calibration of the geomagnetic polarity time scale for the Late Cretaceous and Cenozoic, J. Geophys. Res. 100 (1995) 6093–6095].
title: Guarded and Unguarded Responses to Sentence Completion Tests Among Normal Adolescents and Juvenile Delinquents
Creators: name: Fazel, Mohammed K.
Publisher: name: Utah State University
Year: 1967

description: This study was designed to test the responses of a group of juvenile delinquests and a group of normal adolescents to a sentence completion test. The test used was a modified form of Sack's Sentence Completion test in two forms--form A, first person stems and form B, third person stems. The hypothesis to be tested were (1) people project more in the third person, (2) the normal projects more, and (3) there would be no difference in projection on neutral items. The results bear out the three hypothesis. The sex scale, however, was an exception. This may be due to the deficiency of items on this particular scale.
A lattice study of light scalar tetraquarks
Creators: name: Prelovsek, Sasa
name: Mohler, Daniel
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The observed mass pattern of scalar resonances below 1 GeV gives preference to the tetraquark assignment over the conventional $\bar qq$ assignment for these states. We present a search for tetraquarks with isospins 0, 1/2, 1 in lattice QCD, where the isospin channels 1/2 and 1 have not been studied before. We determine three energy levels in each isospin channel using the variational method. The scattering states and possible tetraquark states are distinguished by considering the volume-dependence of spectral weights and by considering the time-dependence of correlators near t~T/2. We find no indication for light tetraquarks at our range of pion masses 344-576 MeV.
description: 22 pages, 9 figures
On the approach to local equilibrium and the stability of the uniform density stationary states of a Van der Waals gas
Creators: name: Le, Dinh Chinh
Publisher: name: University of British Columbia
Year: 2011

description: Some equilibrium and non-equilibrium properties of a gas of hard spheres with a long range attractive potential are investigated by considering the properties of an equation, proposed by deSobrino (1967), for a one-particle distribution function for the gas model considered. The solutions of this equation obey an H-theorem indicating that our gas model approaches local equilibrium. Equilibrium solutions of the kinetic equation are studied; they satisfy an equation for the density η(r) for which space dependent solutions exist and correspond to a mixture of gas and liquid phases. The kinetic equation is next linearized and the linearized equation is applied to the study of the stability of the uniform density stationary states of a Van der Waals gas. A brief asymptotic analysis of sound propagation in dilute gases is presented in view of introducing an approximation of the linearized Boltzmann collision integral due to Gross and Jackson (1959). To first order, the dispersion in the speed of sound at low frequencies is the same as the Burnett and Wang Chang-Uhlenbeck values while the absorption of sound is slightly less than the Burnett value and slightly greater than the Wang Chang-Uhlenbeck value; all three are in good agreement with experiment. Finally, using the method developed in the previous section, an approximation for the linearized Enskog collision integral is obtained; a dispersion relation is derived and used to show that the uniform density states which correspond to local minima of the free energy and traditionally called metastable, are in fact stable against sufficiently small perturbations.
Characterizing land surface processes: A quantitative analysis using air-ground thermal orbits
Creators: name: Smerdon, Jason E.
name: Beltrami, Hugo
name: Creelman, Chance
name: Stevens, M. Bruce
Publisher: name: Columbia University
Year: 2009
Subjects: Atmosphere
Hydrology

description: A quantitative analysis of thermal orbits is developed and applied to modeled air and ground temperatures. Thermal orbits are phase-space representations of air and ground temperature relationships that are generated by plotting daily or monthly ground temperatures against air temperatures. Thermal orbits are useful descriptive tools that provide straightforward illustrations of air and ground temperature relationships in the presence of land surface processes related to snow cover, soil freezing, and vegetation effects. The utility of thermal orbits has been limited, however, by the lack of quantitative analyses that describe changes in orbits across different environments or in time. This shortcoming is overcome in the present study by developing a linear regression analysis of thermal orbits that allows changes to be tracked in time and space and as a function of depth within the subsurface. The theory that underlies the thermal orbit regression analysis is developed herein, and the utility of the application is demonstrated using controlled model experiments.
title: A Study of the Function of Visual Imagery, Type of Mediator, and Associative Frequency in Induced Mediation Paradigms
Creators: name: Christiansen, Ted
Publisher: name: Utah State University
Year: 1966

description: Bugelski and Sharlock (1952) credit McGeoch with saying that although the concept of mediation was an old one, it had generated more discussion than experimentation. Bugelski and Sharlock in commenting on McGeoch's statements had this to say, "The concept of mediation is of great potential value for the psychological analysis of learning, thinking, and insight." (Bugelski and Sharlock, 1952, p. 334) The views of Bugelski and Sharlock represent the current thinking in verbal learning circles relevant to the importance of mediation in symbolic forms of behavior. The experimental emphasis, at the present time, is upon the conditions underlying the process. With regard to the nature of mediation Jenkins has stated,
The second task, I believe, is to press on in our experimental attack on the conditions of mediation: that is, we should attempt to discover how these implicit processes are acquired, how they are actuated, how they are inhibited, and in general, how they are employed by the subjects. (Jenkins, 1963, p. 212)
One method by which the conditions of mediation may be discovered is to determine the relationship between this process and many other forms of intervening variables. In commenting on this latter point Mowrer has stated, "But no one, it seems, has addressed himself systematically to the question of the relation between intervening variables and mediators." (Mowrer, 1960, p. 68) These views of Jenkins and Mowrer on the direction experimentation should take in mediation suggest the need for the current study.
The purpose of this study was to investigate the function of visual imagery, type of mediator and associative frequency in mediate association. The role of these factors was examined within an induced mediation paradigm of the form A- B, B-C, A-C.