cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Topological Nodal Line Electrides: Realization of Ideal Nodal Line State Nearly Immune from Spin-Orbit Coupling
Creators: name: Zhang, Xiaoming
name: Fu, Botao
name: Jin, Lei
name: Dai, Xuefang
name: Liu, Guodong
name: Yao, Yugui
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Nodal line semimetals (NLSs) have attracted broad interest in current research. In most of existing NLSs, the intrinsic properties of nodal lines are greatly destroyed because nodal lines usually suffer sizable gaps induced by non-negligible spin-orbit coupling (SOC). In this work,we propose the topological nodal line electrides (TNLEs), which achieve electronic structures of nodal lines and electrides simultaneously, provide new insight on designing excellent NLSs nearly immune from SOC. Since the states near the Fermi level are most contributed by nonnucleus-bounded interstitial electrons, nodal lines in TNLEs manifest extremely small SOCinduced gap even possessing heavy elements. Especially, we propose the family of A2B (A = Ca, Sr, Ba; B= As, Sb, Bi) materials are realistic TNLEs with negligible SOC-induced gaps, which can play as excellent platforms to study the intrinsic properties of TNLEs
Sensitive VLBI Observations of the z = 4.7 QSO BRI 1202-0725
Creators: name: Momjian, E.
name: Carilli, C. L.
name: Petric, A. O.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present sensitive phase-referenced VLBI results on the radio continuum emission from the z=4.7 double source BRI 1202-0725. The observations were carried out at 1425 MHz using the Very Long Baseline Array (VLBA), the phased Very Large Array (VLA), and the Green Bank Telescope (GBT). Our sensitive VLBI images of BRI 1202-0725 at 0.25 x 0.14 arcsec resolution show a continuum structure in each of its two components. Fitting Gaussian models to these continuum structures yield total flux densities of 315 +/- 38 and 250 +/- 39 microJy, for the northern and the southern components, respectively. The estimated intrinsic brightness temperatures of these continuum structures are about 2 x 10^4 K. Neither component is detected at the full VLBI resolution (29 mas x 7 mas), with a 4 sigma point source upper limit of 40 microJy/beam, or an upper limit to the intrinsic brightness temperature of 6.7 x 10^5 K. The highest angular resolution with at least a 4sigma detection is about 85 mas. At this resolution, the images reveal a single continuum feature in the northern component of BRI 1202-0725, and two continuum features in the southern component, separated by 320 mas. This is similar to the structures seen in the high resolution images of the CO emission. The extent of the observed continuum sources at 1.4 GHz and the derived brightness temperatures are consistent with nuclear starbursts. Moreover, the absence of any compact high-brightness temperature source suggests that thereis no radio-loud AGN in BRI 1202-0725.
description: 19 pages, 5 figures. Accepted for publication in AJ
Magnetoresistance Anomalies in (Ga,Mn)As Epilayers with Perpendicular Magnetic Anisotropy
Creators: name: Xiang, G.
name: Holleitner, A. W.
name: Sheu, B. L.
name: Mendoza, F. M.
name: Maksimov, O.
name: Schiffer, P.
name: Awschalom, D. D.
name: Samarth, N.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report the observation of anomalies in the longitudinal magnetoresistance of tensile-strained (Ga,Mn)As epilayers with perpendicular magnetic anisotropy. Magnetoresistance measurements carried out in the planar geometry (magnetic field parallel to the current density) reveal "spikes" that are antisymmetric with respect to the direction of the magnetic field. These anomalies always occur during magnetization reversal, as indicated by a simultaneous change in sign of the anomalous Hall effect. The data suggest that the antisymmetric anomalies originate in anomalous Hall effect contributions to the longitudinal resistance when domain walls are located between the voltage probes. This interpretation is reinforced by carrying out angular sweeps of $\vec{H}$, revealing an antisymmetric dependence on the helicity of the field sweep.
description: Submitted to Phys. Rev. B
Acute, sublethal and synergistic effects of some essential oil constituents against the Asian armyworm, spodoptera litura (lepidoptera: noctuidae) |
Creators: name: Hummelbrunner, Laurin Arthur
Publisher: name: University of British Columbia
Year: 2009

description: Public concerns over synthetic pesticides have stimulated the search for alternative methods of control. Plant essential oils are the odorous components and secondary metabolites that can be separated from other plant tissues through steam distillation. Generally regarded as plant defenses against herbivory, they have demonstrated acute toxicity to various insect species and are of interest for the development of 'ecologically friendly' pesticides. After identifying three main active ingredients in several samples of commercial fragrance oils against the Asian armyworm, Spodoptera litura, a number of related compounds were also tested for acute toxicity (measured as LD5 0). The most toxic was thymol (LD50=25.4 jj.g/larva). Compounds were then tested for sublethal effects. Growth inhibition after topical application and feeding deterrence using leaf-disc choice experiments were determined. An LD1 0 dose reduces growth by 20% on average three days after topical application, and the most deterrent compound to feeding was thymol, with a DC5 0 of 85.6 u.g/cm2 leaf disc area. Since minor constituents in complex essential oils are thought to act as synergists, binary mixtures of the compounds were tested for synergy vis a vis acute toxicity and feeding deterrence. Trans-anethole acts synergistically with thymol, citronellal and a-terpineol. Based on these findings, several complex mixtures were developed and tested as leads for effective control agents. Candidate mixtures demonstrated good synergistic effects. The observed LD5 0 of Mixture 3 was 40.6 u.g/larvae compared to an expected value of 74.6 (.ig/larvae. The result of this research is a proprietary product soon to enter commercial production.
Near-infrared imaging polarimetry of dusty young stars
Creators: name: Hales, A. S.
name: Gledhill, T. M.
name: Barlow, M. J.
name: Lowe, K. T. E.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have carried out JHK polarimetric observations of eleven dusty young stars, by using the polarimeter module IRPOL2 with the near-IR camera UIST on the 3.8-m United Kingdom Infrared Telescope (UKIRT). Our sample targeted systems for which UKIRT-resolvable discs had been predicted by model fits to their spectral energy distributions. Our observations have confirmed the presence of extended polarized emission around TW Hya and around HD 169142. HD 150193 and HD 142666 show the largest polarization values among our sample, but no extended structure was resolved. By combining our observations with HST coronographic data from the literature, we derive the J- and H-band intrinsic polarization radial dependences of TW Hya's disc. We find the disc's polarizing efficiency is higher at H than at J, and we confirm that the J- and H-band percentage polarizations are reasonably constant with radius in the region between 0.9 and 1.3 arcseconds from the star. We find that the objects for which we have detected extended polarizations are those for which previous modelling has suggested the presence of flared discs, which are predicted to be brighter than flat discs and thus would be easier to detect polarimetrically.
description: Accepted by MNRAS
Relativistic Transport Approach to Collective Nuclear Dynamics
Creators: name: Yildirim, S.
name: Gaitanos, T.
name: Di Toro, M.
name: Greco, V.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The isoscalar giant monopole resonance (ISGMR) and isovector giant dipole resonance (IVGDR) in finite nuclei are studied in the framework of a relativistic transport approach. The kinetic equations are derived within an effective nucleon-meson field theory in the Relativistic Mean Field (RMF) scheme, even extended to density dependent vertices. Small amplitude oscillations are analysed using the Relativistic Vlasov (RV) approach, i.e. neglecting nucleon collision terms. The time evolution of the isoscalar monopole moment and isovector dipole moment and the corresponding Fourier power spectra are discussed. In the case of ^{208}Pb we study in detail the dependence of the monopole response on the effective mass and symmetry energy at saturation given by the used covariant effective interaction. We show that a reduced m^* and a larger a_4 can compensate the effect on the ISGMR energy centroid of a much larger compressibility modulus K_{nm}. This result is important in order to overcome the conflicting determination of the nuclear compressibility between non-relativistic and relativistic effective interactions. For the symmetry energy dynamical effects, we carefully analyze the influence of the inclusion of an effective isovector scalar channel, δ-meson field, with constant and density dependent couplings. We show the relevance of the $slope$ (or pressure) of the symmetry energy at saturation on the ISGMR and IVGDR modes for neutron-rich systems. Density dependent vertices are not much affecting our conclusions. Following as a guidance some extended dispersion relations in nuclear matter, we see two main reasons for that, the smoothness of the density dependences around saturation and the presence of compensation effects coming from rearrangement terms.
description: 26 pages, 3 figures, revtex4
Detriti spaziali in alta definizione
Creators: Maura Sandri
Publisher: name: Media Inaf
Year: 2021

Presentato su Siam Journal on Imaging Sciences un metodo per acquisire immagini ad alta risoluzione di oggetti in rapido movimento e rotazione nello spazio, come satelliti o detriti in orbita bassa. Il processo di imaging impiega un algoritmo per stimare la velocità e l'angolo di rotazione dell’oggetto, poi applica tali stime per produrre una sua immagine ad alta risoluzione. Questo per garantire la sicurezza dell’orbita bassa, fondamentale per il telerilevamento globale
C’è un centauro fra i troiani
Creators: Luca Nardi
Publisher: name: Media Inaf
Year: 2021

Si chiama P/2019 Ld2 ed è un centauro, un corpo minore ghiacciato che orbita tra Giove e Nettuno. Questo oggetto detiene un primato: è il primo centauro che osserviamo a essersi inserito tra gli asteroidi troiani di Giove. E ora, grazie a Hubble Space Telescope, ha anche un volto
Implication of Z-mediated FCNC on semileptonic decays $B_s\toϕl^+l^-$ and $B^+\to K^+ l^+ l^-$
Creators: name: Nayek, P.
name: Biswas, S.
name: Maji, P.
name: Sahoo, S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Rare B meson decays mediated by flavour changing neutral current (FCNC) transition play interesting role to probe the flavour sector of the standard model (SM). Generally at the tree level, FCNC processes are not allowed in the SM but occurs at the loop levels. This gives an excellent hunting ground for new physics (NP). From various experimental studies it is found that the FCNC processes having quark level transition $b \to s$ are challenging. Here, we investigate different kinematic observables like forward-backward asymmetry, differential branching ratio and lepton polarization asymmetry for semileptonic rare B decay modes $B_s \to ϕl^+ l^-$ and $B^+ \to K^+ l^+ l^-$ ($l= μ,τ$) considering the contribution of Z-mediated FCNC. A noticeable deviation of the observables for these decay channels from the SM value is found because of non-universal $Z$-$bs$ coupling.
Statistical Confirmation of a Stellar Upper Mass Limit
Creators: name: Oey, M. S.
name: Clarke, C. J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We derive the expectation value for the maximum stellar mass (m_max) in an ensemble of N stars, as a function of the IMF upper-mass cutoff (m_up) and N. We statistically demonstrate that the upper IMF of the local massive star census observed thus far in the Milky Way and Magellanic Clouds clearly exhibits a universal upper mass cutoff around 120 - 200 M_sun for a Salpeter IMF, although the result is more ambiguous for a steeper IMF.
description: PDF, 5 pages, 4 figures. Accepted to the Astrophysical Journal Letters
PUBLIC PERCEPTIONS OF GENETICALLY MODIFIED FOODS: AMERICANS KNOW NOT WHAT THEY EAT
Creators: name: Hallman, William K.
name: Adelaja, Adesoji O.
name: Schilling, Brian J.
name: Lang, John T.
name: Hallman, William K.
name: Adelaja, Adesoji O.
name: Schilling, Brian J.
name: Lang, John T.
Publisher: name: Unknown
Year: 2002
Subjects: Consumer/Household Economics

description: Biotechnology stands to be a defining technology in the future of food and agriculture. Proponents argue that science and industry are poised to bring consumers a wide variety of products that have potential for meeting basic food needs, as well as delivering a wide-range of health, environmental and economic benefits. Opponents counter that the potential exists for unintended consequences, ranging from ecological disruption to adverse human health implications, and that these risks are not fully understood. Fundamental questions exist, however, regarding the general public's position on food products derived with the use of biotechnology. To address these questions, the Food Policy Institute addressed consumers using computer-assisted telephone interviews (CATI) system, a public phone survey of a sample selection of 1203 U.S. residents was administered between March and April 2001. The questionnaire was developed to address perceived gaps in the current literature on American consumer awareness, acceptance, and perceptions of food biotechnology and to serve as the basis for a set of longitudinal studies that will be able to track public opinion over time.
Dinosauri, fu un asteroide: lo conferma l’iridio
Creators: Paolo Soletta
Publisher: name: Media Inaf
Year: 2021

Il ritrovamento di uno strato di iridio all’interno del cratere di Chicxulub, in Messico, offre la prova pressoché definitiva che fu l’impatto con un corpo extraterrestre avvenuto alla fine del Cretaceo a sterminare il 75 per cento delle forme di vita sulla Terra, dinosauri in testa. Lo studio, pubblicato su Science Advances, mette in luce dettagli cronologici inediti e sorprendentemente precisi
Limiting the impact of light pollution on human health, environment and stellar visibility
Creators: name: Falchi, Fabio
name: Cinzano, Pierantonio
name: Elvidge, Christopher D.
name: Keith, David M.
name: Haim, Abraham
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Light pollution is one of the most rapidly increasing types of environmental degradation. To limit this pollution several effective practices have been defined: shields on lighting fixtures to prevent direct upward light; no over lighting, i.e. avoid using higher lighting levels than strictly needed for the task, constraining illumination to the area where and when it is needed. Nevertheless, even after the best control of the light distribution is reached and when the proper quantity of light is used, upward light emission remains, due to reflections from the lit surfaces and atmospheric scatter. The environmental impact of this "residual light pollution" cannot be neglected and should be limited too. We propose a new way to limit the effects of this residual light pollution on wildlife, human health and stellar visibility. We performed analysis of the spectra of common types of lamps for external use, including the new LEDs. We evaluated their emissions relative to the spectral response functions of human eye photoreceptors, in the photopic, scotopic and melatonin suppressing bands finding that the amount of pollution is strongly dependent on the spectral characteristics of the lamps, with the more environmentally friendly lamps being low pressure sodium, followed by high pressure sodium. Most polluting are the lamps with a strong blue emission, like white LEDs. Migration from the now widely used sodium lamps to white lamps (Metal Halide and LEDs) would produce an increase of pollution in the scotopic and melatonin suppression bands of more than five times the present levels, supposing the same photopic installed flux. This increase will exacerbate known and possible unknown effects of light pollution on human health, environment and on starry sky visibility. We present quantitative criteria to evaluate the lamps based on their spectral emissions and we suggest regulatory limits.
Stimulated and spontaneous optical generation of electron spin coherence in charged GaAs quantum dots
Creators: name: Dutt, M. V. Gurudev
name: Cheng, Jun
name: Li, Bo
name: Xu, Xiaodong
name: Li, Xiaoqin
name: Berman, P. R.
name: Steel, D. G.
name: Bracker, A. S.
name: Gammon, D.
name: Economou, Sophia E.
name: Liu, Ren-Bao
name: Sham, L. J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report on the coherent optical excitation of electron spin polarization in the ground state of charged GaAs quantum dots via an intermediate charged exciton (trion) state. Coherent optical fields are used for the creation and detection of the Raman spin coherence between the spin ground states of the charged quantum dot. The measured spin decoherence time, which is likely limited by the nature of the spin ensemble, approaches 10 ns at zero field. We also show that the Raman spin coherence in the quantum beats is caused not only by the usual stimulated Raman interaction but also by simultaneous spontaneous radiative decay of either excited trion state to a coherent combination of the two spin states.
description: 4 pages, 3 figures. Minor modifications
Extended parity doublet model with a new transport code
Creators: name: Kim, Myungkuk
name: Jeon, Sangyong
name: Kim, Young-Min
name: Kim, Youngman
name: Lee, Chang-Hwan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A new transport code "DaeJeon Boltzmann-Uehling-Uhlenbeck (DJBUU)" had been developed and enables to describe the dynamics of heavy-ion collisions in low-energy region. To confirm the validity of the new code, we first calculate Au + Au collisions at Ebeam = 100 and 400A MeV and also perform the box calculation to check the detail of collisions and Pauli blocking without mean-field potential as suggested by the Transport Code Comparison Project. After confirming the validity of new transport code, we study low-energy heavy-ion collisions with an extended parity doublet model. Since the distinctive feature of the parity doublet model is the existence of the chiral invariant mass that contributes to the nucleon mass, we investigate how physical quantities depend on the chiral invariant mass in heavy ion collisions at low energies. For this, we calculate physical quantities such as the effective nucleon mass in central collisions and transverse flow in semi-central collisions of Au + Au at Ebeam = 400A MeV with different values of the chiral invariant masses.
description: 28 pages, 12 figures. Accepted by PRC
STATE-MANDATED FOOD SAFETY CERTIFICATION REQUIREMENTS FOR RESTAURANTS: A 2002 REVIEW OF STATES
Creators: name: Schilling, Brian J.
name: O'Connor, Jack
name: Hendrickson, Veronica
name: Schilling, Brian J.
name: O'Connor, Jack
name: Hendrickson, Veronica
Publisher: name: Unknown
Year: 2003
Subjects: Food Consumption/Nutrition/Food Safety

description: The Food and Drug Administration publishes a Standard Food Code which individual states either ratify, or amend and ratify, as the State Food Code. New Jersey has not adopted any revisions to the FDA Standard Food Code since 1993. Currently, the New Jersey Department of Health and Senior Services is considering the implementation of a mandatory food safety certification program for all of the state's foodservice establishments beginning in April 2003. Foodservice businesses serving "high risk" populations, such as the young, ill, or elderly, will be the first segment of the industry required to comply with the new guidelines. Other segments of the industry would be phased in over three years. The exact nature of the revision is yet to be determined; however, it will likely require at least one individual from each foodservice establishment to be certified in proper food safety/food handling techniques. This revision will affect more than 21,000 foodservice businesses that collectively employ 180,000 workers. To proactively respond to the upcoming changes in the State Food Code, the New Jersey Restaurant Association (NJRA) requires information on the status and nature of other state-mandated food safety certification programs. As a service to the foodservice industry, and at the request of the NJRA, the Food Policy Institute at Rutgers University conducted a study to determine the status of state food safety certification requirements across the country. The Institute interviewed all 50 state restaurant associations and found that 16 states presently have some form of state-mandated food safety certification requirement for restaurant workers. Local (municipal or county) food safety certification requirements exist in many states, even in the absence of a state mandate, but these are beyond the scope of this review.
La Venere di Parker
Creators: Giuseppe Fiasconaro
Publisher: name: Media Inaf
Year: 2021

Per la foto astronomica del 25 febbraio la scelta della Nasa è caduta su uno scatto realizzato dalla sonda della Nasa Parker Solar Probe. Il soggetto dell'immagine, immortalato sullo sfondo di un cielo stellato, è Venere, il pianeta che prende il nome dalla dea romana della bellezza, fondamentale per dirigere la sonda in un'orbita stretta vicino al Sole
Comparative Judicial Conflict Resolution (JCR): Between Summary Trials and ADR
Creators: name: Alberstein, Michal
Publisher: name: Zenodo
Year: 2020

description: This paper examines two trends that characterize contemporary judicial work: One is the diminishing of the trial – i.e., the shift to an inquisitorial process or summary trial. The other is the development of new judicial roles related to mediation and conflict resolution. These two trajectories offer different ideals for the development of legal systems and the paper discusses them in reference to jurisprudential ideals for the judicial role. Our research of three legal systems – Italy, Israel and England and Wales – uncovers a preference of procedure over substance and an emphasis on the first trajectory, producing a variety of summary trials and trial-avoidance methods.
Temperature evolution of magnetic phases near the thickness-dependent metal-insulator transition in La$_{1-x}$Sr$_x$MnO$_3$ thin films observed by XMCD
Creators: name: Shibata, Goro
name: Yoshimatsu, Kohei
name: Sakai, Enju
name: Ishigami, Keisuke
name: Sakamoto, Shoya
name: Nonaka, Yosuke
name: Chang, Fan-Hsiu
name: Lin, Hong-Ji
name: Huang, Di-Jing
name: Chen, Chien-Te
name: Kumigashira, Hiroshi
name: Fujimori, Atsushi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Perovskite-type manganites, which are well-known for their intriguing physical properties such as colossal magnetoresistance (CMR) and half metalicity, have been considered as candidate materials for spintronics. However, their ferromagnetic (FM) properties are often suppressed in thin films when the thickness is reduced down to several monolayers (MLs). In order to investigate how the magnetic phases evolve near the paramagnetic (PM)-to-FM phase transition boundary, we have performed temperature-dependent x-ray magnetic circular dichroism (XMCD) experiments on a La$_{1-x}$Sr$_{x}$MnO$_3$ (LSMO, $x=0.4$) thin film, whose thickness (8 ML) is close to the boundary between the FM-metallic and the PM-insulating phases. By utilizing the element-selectiveness of XMCD, we have quantitatively estimated the fractions of the PM and superparamagnetic (SPM) phases as well as the FM one as a function of temperature. The results can be reasonably described based on a microscopic phase-separation model.
description: 6 pages, 3 figures
Aggregates - User Manual
Creators: name: Bernardes, Carlos E. S.
Publisher: name: Zenodo
Year: 2021
Subjects: Molecular Dynamics Simulations
Aggregation
Structural Analysis
Clusters
Molecular conformation
fingerprint plots

description: AGGREGATES is a Fortran code developed to find and analyze molecular structures in computer-simulated trajectories. The program can read trajectory files from several MD packages namely, DLPOLY, CHARMM, LAMMPS, and GROMACS. Additionally, PDB files can also be used. The program output consists of a series of statistical functions that can be used to characterize the size, shape, and organization of molecules in a network. An extensive description of the program functionalities can be found in the following publication: C.E.S. Bernardes; J. Comp. Chem. 2017, 38, 753-755. (http://dx.doi.org/10.1002/jcc.24735) In this publication, the program manual is provided as the program version 3.2. This work was supported by Fundação para a Ciência e a Tecnologia (FCT), Portugal (projects PTDC/QUI-OUT/28401/2017, LISBOA-01-0145-FEDER-028401, UIDB/00100/2020 and UIDP/00100/2020).
description: {"references": ["C.E.S. Bernardes; J. Comp. Chem. 2017, 38, 753-755."]}
Invariant manifolds and equilibrium states for non-uniformly hyperbolic horseshoes
Creators: name: Leplaideur, R.
name: Rios, I.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37D10; 37D35

description: In this paper we consider horseshoes containing an orbit of homoclinic tangency accumulated by periodic points. We prove a version of the Invariant Manifolds Theorem, construct finite Markov partitions and use them to prove the existence and uniqueness of equilibrium states associated to Hölder continuous potentials.
description: 33 pages, 6 figures
Distruzione mareale con inspiegabile ritardo radio
Creators: Maura Sandri
Publisher: name: Media Inaf
Year: 2021

Un team di ricercatori dell’Università Ebraica di Gerusalemme ha trovato la prima evidenza di flare radio emessi molto tempo dopo che una stella è stata distrutta da un buco nero supermassiccio. In particolare, la scoperta di due flare a distanza di sei mesi e quattro anni dall’evento di distruzione mareale non è supportata dalla teoria. Sono motivate pertanto nuove osservazioni e nuovi modelli
UNCOVERING FACTORS INFLUENCING PUBLIC PERCEPTIONS OF FOOD BIOTECHNOLOGY
Creators: name: Hossain, Ferdaus
name: Onyango, Benjamin M.
name: Adelaja, Adesoji O.
name: Schilling, Brian J.
name: Hallman, William K.
name: Hossain, Ferdaus
name: Onyango, Benjamin M.
name: Adelaja, Adesoji O.
name: Schilling, Brian J.
name: Hallman, William K.
Publisher: name: Unknown
Year: 2002
Subjects: Research and Development/Tech Change/Emerging Technologies

description: Significant divergence exists in public opinions about biotechnology. Although there is broad support for plant biotechnology for health benefits, opinions differ on the issue of animal genetics for pure economic benefits. While some are opposed to it, many are undecided about genetically modified foods. Considerable skepticism exists about scientists, corporations and government which have negative influence on public acceptance of food biotechnology. Consumers' personal attributes have significant influence on their views about various biotechnology issues.
Buchi neri supermassicci fatti di materia oscura
Creators: Laura Leonardi
Publisher: name: Media Inaf
Year: 2021

Uno studio pubblicato su Monthly Notices of the Royal Astronomical Society teorizza la formazione di buchi neri supermassicci a partire dalla materia oscura, e mostra come quest’ultima possa distribuirsi fra alone e centro di una galassia fino a dar luogo a un nucleo di materia oscura molto denso
Noise Correlations of Hard-core Bosons: Quantum Coherence and Symmetry Breaking
Creators: name: Rey, Ana Maria
name: Satija, Indubala I
name: Clark, Charles W
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Noise correlations, such as those observable in the time of flight images of a released cloud, are calculated for hard-core bosonic (HCB) atoms. We find that the standard mapping of HCB systems onto spin-1/2 XY models fails in application to computation of noise correlations due to the contribution of multiply occupied virtual states in HCB systems. Such states do not exist in spin models. An interesting manifestation of such states is the breaking of particle-hole symmetry in HCB. We use noise correlations to explore quantum coherence of strongly correlated bosons in the fermionized regime with and without external parabolic confinement. Our analysis points to distinctive new experimental signatures of the Mott phase.
description: 17 pages, 6 figures. This is a detailed revised version of quant-ph/0507153. It has been submitted to Journal of Physics B: the special edition for the Cortona BEC workshop
Furto di gas fra galassie
Creators: Giuseppe Fiasconaro
Publisher: name: Media Inaf
Year: 2021

Confrontando dati osservativi e simulazione cosmologiche, un team di scienziati guidato dall’Icrar ha scoperto che la quantità di idrogeno molecolare al centro delle galassie satelliti sono inferiori rispetto alle galassie normali. Il motivo sarebbe il continuo processo di sottrazione dovuto al “ram pressure stripping”. «È un po' come quando si mette la mano fuori dal finestrino dell’auto», spiega Federico Marinacci dell’Università di Bologna, coautore dello studio
Charge Sensing of an Artificial H2+ Molecule
Creators: name: Pioro-Ladriere, M.
name: Abolfath, M. R.
name: Zawadzki, P.
name: Lapointe, J.
name: Studenikin, S. A.
name: Sachrajda, A. S.
name: Hawrylak, P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report charge detection studies of a lateral double quantum dot with controllable charge states and tunable tunnel coupling. Using an integrated electrometer, we characterize the equilibrium state of a single electron trapped in the doubled-dot (artificial H2+ molecule) by measuring the average occupation of one dot. We present a model where the electrostatic coupling between the molecule and the sensor is taken into account explicitly. From the measurements, we extract the temperature of the isolated electron and the tunnel coupling energy. It is found that this coupling can be tuned between 0 and 60 micro electron-volt in our device.
description: 5 pages, 4 figures. Revised version with added material. To be published in Physical Review B
CONSUMER ACCEPTANCE OF GENETICALLY MODIFIED FOODS IN KOREA: FACTOR AND CLUSTER ANALYSIS
Creators: name: Onyango, Benjamin M.
name: Govindasamy, Ramu
name: Hallman, William K.
name: Jang, Ho-Min
name: Puduri, Venkata S.
name: Onyango, Benjamin M.
name: Govindasamy, Ramu
name: Hallman, William K.
name: Jang, Ho-Min
name: Puduri, Venkata S.
Publisher: name: Unknown
Year: 2004
Subjects: Research and Development/Tech Change/Emerging Technologies

description: The study applies multivariate statistical and econometric tools to estimate the importance of the various factors driving Korean consumer acceptance of GM food products. The evidence thus far on biotechnology is decidedly mixed: public perceptions of food biotechnology are characterized by ongoing tension between opposing forces. The South Korean perceptions about food in general and ranges from excitement about the promise of environmental and economic benefits from GM products to fear and distrust of the technology for unknown risks. This highlights the importance of credibility of private and public institutions responsible for certifying the safety of GM foods and implementing necessary regulatory controls on GM processes and products. In between, many people are undecided, trying to learn more about the issues and reach a definitive position. Encouraging though is that some people are eager to try new foods. Koreans strongly favors food naturalness, familiarity, and access just as the west countries. Results suggest that the South Korean Consumer priorities with respect to various biotechnology and general food issues are related to their socioeconomic and value attributes. This implies that, at least in the near term, there will be considerable divergence within the society in terms of acceptance of food biotechnology. The finding that large segments of the Korean society are either not fully informed or interested in learning more about biotechnology calls for a public education program. A program that may play a constructive role in not only informing consumers but help them in arriving at a socially optimal collective decisions on the wisdom and desirability of food biotechnology.
EMERGING IP MARKETS: THE TOKYO GRAIN EXCHANGE NON-GMO SOYBEAN CONTRACT
Creators: name: Parcell, Joseph L.
name: Parcell, Joseph L.
Publisher: name: Unknown
Year: 2002
Subjects: subject: Crop Production/Industries
subject: Marketing
subject: FOS: Economics and business

description: This research provides an overview of the development of the Tokyo Grain Exchange non-GMO soybean contract as an identity preserved futures contract. The development of this contract is unique, relative to the development of other new futures contracts, in that a mature conventional soybean futures contract exists. Particular attention was given to established necessary conditions for the development of a new futures contract. In evaluating these conditions it was determined that since inception of the Tokyo Grain Exchange non-GMO soybean futures contract the contract has functioned like a mature futures contract. This is unique in comparison to results of other studies evaluating the development of futures contracts. Furthermore, the lack of a well defined and liquid cash non-GMO soybean market does not appear to have hampered the development of the non-GMO futures contract.
Un milione di binarie per Gaia
Creators: Maura Sandri
Publisher: name: Media Inaf
Year: 2021

Per la prima volta – grazie alla Early Data Release 3 di Gaia – gli astronomi hanno creato un catalogo 3D unico nel suo genere, contenente 1.3 milioni di stelle binarie, a distanze non superiori a 3000 anni luce dalla Terra. La nuova analisi conferma che molte coppie di stelle binarie hanno una massa molto simile, contrariamente a quanto ci si potrebbe aspettare, vista la loro distanza. Tutti i dettagli su Mnras
CAN STRUCTURAL CHANGE EXPLAIN THE DECREASE IN RETURNS TO TECHNICAL ANALYSIS?
Creators: name: Kidd, Willis V.
name: Brorsen, B. Wade
name: Kidd, Willis V.
name: Brorsen, B. Wade
Publisher: name: Unknown
Year: 2002
Subjects: subject: Marketing
subject: FOS: Economics and business

description: Practioners Abstract: Returns to managed futures funds and Commodity Trading Advisors (CTAs) have decreased dramatically during the last several years. Since these funds overwhelmingly use technical analysis, this research examines futures prices to determine if there is evidence of a structural change in futures price movements that could explain the reduction in fund returns. Bootstrap tests are used to test significance of a change in statistics related to daily returns, close-to-open changes, breakaway gaps, and serial correlation. Results indicate that several statistics have changed across a broad range of commodities indicating futures price fluctuations have changed. The lower price volatility, decreased price reaction time, and decreased serial correlation may partly explain the lower returns from technical analysis.
Bolide immortalato nell’atmosfera di Giove
Creators: Paolo Soletta
Publisher: name: Media Inaf
Year: 2021

Nel 2020 lo spettrografo ultravioletto Uvs della sonda Juno della Nasa, progettato per osservare le aurore gioviane, ha osservato un lampo luminoso sopra le nuvole del pianeta. Il team dedicato allo strumento ha studiato i dati arrivando alla certezza di aver catturato un bolide in caduta nell’atmosfera superiore del gigante gassoso
The IMF and Star Formation History of the Stellar Clusters in the Vela D Cloud
Creators: name: Massi, Fabrizio
name: Testi, Leonardo
name: Vanzi, Leonardo
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of a Near-Infrared deep photometric survey of a sample of six embedded star clusters in the Vela-D molecular cloud, all associated with luminous (~10^3 Lsun) IRAS sources. The clusters are unlikely to be older than a few 10^6 yrs, since all are still associated with molecular gas. We employed the fact that all clusters lie at the same distance and were observed with the same instrumental setting to derive their properties in a consistent way, being affected by the same instrumental and observational biases. We extracted the clusters' K Luminosity Functions (KLF) and developed a simple method to correct them for extinction, based on colour-magnitude diagrams. The reliability of the method has been tested by constructing synthetic clusters from theoretical tracks for pre-main sequence stars and a standard Initial Mass Function (IMF). The clusters' IMFs have been derived from the dereddened KLFs by adopting a set of pre-main sequence evolutionary tracks and assuming coeval star formation. All clusters are small (~100 members) and compact (radius \~0.1-0.2 pc); their most massive stars are intermediate-mass (~2-10 Msun) ones. The dereddened KLFs are likely to arise from the same distribution, suggesting that the selected clusters have quite similar IMFs and star formation histories. The IMFs are consistent with those derived for field stars and clusters. Adding them together we found that the ``global'' IMF appears steeper at the high-mass end and exhibits a drop-off at ~10 Msun. In fact, a standard IMF would predict a star with M>22.5 Msun within one of the clusters, which is not found. Hence, either high-mass stars need larger clusters to be formed, or the IMF of the single clusters is steeper at the high-mass end because of the physical conditions in the parental gas.
description: 17 pages, 14 figures, to be published in Astronomy & Astrophysics
ASSESSING THE COST OF BEEF QUALITY
Creators: name: Forristall, Cody
name: May, Gary J.
name: Lawrence, John D.
name: Forristall, Cody
name: May, Gary J.
name: Lawrence, John D.
Publisher: name: Unknown
Year: 2002
Subjects: subject: Livestock Production/Industries
subject: Marketing
subject: FOS: Economics and business

description: The number of U.S. fed cattle marketed through a value based or grid marketing system is increasing dramatically. Most grids reward Choice or better quality grades and some pay premiums for red meat yield. The Choice-Select (C-S) price spread increased 55 percent, over $3/cwt between 1989-91 and 1999-01. However, there is a cost associated with pursuing these carcass premiums. This paper examines these tradeoffs both in the feedlot and in a retained ownership scenario. Correlations between carcass and performance traits resulted in economic tradeoffs that change across input costs and quality grade premiums and discounts. Feedlot profitability was largely determined by marbling, carcass weight, and feed efficiency. Carcass weight was most important at a low C-S spread. However, at average C-S spread and higher, marbling became the largest determinate of feedlot profits, and its importance increased with the C-S spread. Carcass weight and feed efficiency influence on feedlot profitability declined at higher C-S spreads. Rib-eye area was the fourth most important variable and declined in importance as marbling increased in importance. There is some indication that cows with lower feed costs also produce the most profitable calf for the feedlot, and vice-versa. The data suggests that cow size and marbling score are negatively correlated. The current trend toward wider C-S spreads and rewarding higher quality grading cattle places greater emphasis on marbling ability of calves. These correlations and results suggest that higher marbling is associated with lower cost cows to maintain.
Eigenstate entanglement scaling for critical interacting spin chains
Creators: name: Miao, Qiang
name: Barthel, Thomas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: With increasing subsystem size and energy, bipartite entanglement entropies of energy eigenstates cross over from the groundstate scaling to a volume law. In previous work, we pointed out that, when strong or weak eigenstate thermalization (ETH) applies, the entanglement entropies of all or, respectively, almost all eigenstates follow a single crossover function. The crossover functions are determined by the subsystem entropy of thermal states and assume universal scaling forms in quantum-critical regimes. This was demonstrated by field-theoretical arguments and the analysis of large systems of non-interacting fermions and bosons. Here, we substantiate such scaling properties for integrable and non-integrable interacting spin-1/2 chains at criticality using exact diagonalization. In particular, we analyze XXZ and transverse-field Ising models with and without next-nearest-neighbor interactions. Indeed, the crossover of thermal subsystem entropies can be described by a universal scaling function following from conformal field theory. Furthermore, we analyze the validity of ETH for entanglement in these models. Even for the relatively small system sizes that can be simulated, the distributions of eigenstate entanglement entropies are sharply peaked around the subsystem entropies of the corresponding thermal ensembles.
description: 8 pages, 7 figures. Data for larger systems, added discussion of substructures due to approximately conserved quantities, minor improvements. Published version. This complements arXiv:1905.07760 and arXiv:1912.10045
The impacts of transportation corridors on grizzly and black bear habitat use patterns near Golden, B.C.
Creators: name: Munro, Robin Helen
Publisher: name: University of British Columbia
Year: 2009

description: The focus of the study was on the influence of transportation corridors (Tcorridors), which included the Trans-Canada Highway (TCH), Canadian Pacific Railway, and Highway 95, on the distribution and habitat use patterns of black and grizzly bears near Golden, B.C. The relationship among bears, habitat, and T-corridors was examined using compositional analysis and univariate comparisons in conjunction with a Geographic Information System. During 1994-1997, 40 radio collared grizzly and 24 radio collared black bears were located 1061 and 505 times, respectively. Because the Tcorridors followed major valleys and crossed a mountain pass where slide chutes and riparian areas predominated, I expected bears to be displaced from these habitat types during spring. During spring, 85% of all collared grizzly bears used areas adjacent to Tcorridors less than expected by random use. The habitat analysis further revealed that although slide chutes were selected the majority of bears selected chutes adjacent to corridors less than expected, however, 15% of the radio collared individuals used slide chutes adjacent to T-corridors more than expected. These bears were all among those trapped within a home range radius of the T-corridors and only one of these 6 bears was an adult female. Eighty-eight percent of collared black bears used areas within 500 m of the corridors during the spring. At this time both male and female black bears selected right-of ways and timbered areas more than expected. Use of the rights-of-way increased the black bears' risk of mortality. To reduce mortality of black bear and return bears to a more natural diet, vegetation along the rights-of-way should be replaced with less palatable plant species. Because of the potential for habitat and population fragmentation among the grizzly bears, areas where bears cross the corridors should be identified before the TCH is twinned. If possible, portions of the highway that contain such crossing areas should be protected from further development. If development must proceed, areas along the T C H which have the potential to act as crossing-underpasses for bears should be enhanced to encourage bear use and improve conductivity.
Anomalie magnetiche sui crateri di Mercurio
Creators: Ufficio stampa Inaf
Publisher: name: Media Inaf
Year: 2021

Un gruppo di ricercatori guidati dall’Inaf ha analizzato il campo magnetico crostale di Mercurio per studiare alcune anomalie che si collocano in corrispondenza di due crateri recenti, asimmetriche rispetto al loro centro. L’analisi geologica dei due crateri suggerisce che il ferro che ha registrato l’anomalia sia stato portato da un impattore. Ulteriori dettagli su Geophysical Research Letters
Galactic Bulge Microlensing Optical Depth from EROS-2
Creators: name: Hamadache, C.
name: Guillou, L. Le
name: Tisserand, P.
name: Afonso, C.
name: Albert, J. N.
name: Andersen, J.
name: Ansari, R.
name: Aubourg, E.
name: Bareyre, P.
name: Beaulieu, J. P.
name: Charlot, X.
name: Coutures, C.
name: Ferlet, R.
name: Fouqué, P.
name: Glicenstein, J. F.
name: Goldman, B.
name: Gould, A.
name: Graff, D.
name: Gros, M.
name: Haissinski, J.
name: de Kat, J.
name: Lesquoy, E.
name: Loup, C.
name: Magneville, C.
name: Marquette, J. B.
name: Maurice, E.
name: Maury, A.
name: Milsztajn, A.
name: Moniez, M.
name: Palanque-Delabrouille, N.
name: Perdereau, O.
name: Rahal, Y. R.
name: Rich, J.
name: Spiro, M.
name: Vidal-Madjar, A.
name: Vigroux, L.
name: Zylberajch, S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a new EROS-2 measurement of the microlensing optical depth toward the Galactic Bulge. Light curves of $5.6\times 10^{6}$ clump-giant stars distributed over $66 °^2$ of the Bulge were monitored during seven Bulge seasons. 120 events were found with apparent amplifications greater than 1.6 and Einstein radius crossing times in the range $5 {\rm d}
description: accepted A&A, minor revisions
BOVINE SPONGIFORM ENCEPHALOPATHY (BSE): RISKS AND IMPLICATIONS FOR THE UNITED STATES
Creators: name: Fox, John A.
name: Peterson, Hikaru Hanawa
name: Fox, John A.
name: Peterson, Hikaru Hanawa
Publisher: name: Unknown
Year: 2002
Subjects: Livestock Production/Industries

description: Practioner's Abstract: Mad cow disease has caused two disruptions in European beef markets--first in the U.K. in 1996 following the announcement of a link to new variant Creutzfeldt-Jacob Disease in humans, and the second in late 2000 following the discovery of "homegrown" cases of the disease in Germany and Spain. In September 2001 the disease was discovered in Japan where it also resulted in an immediate and substantial reduction in beef demand. The disease has not been found in the U.S. but the current scope of detection efforts provides little assurance that it does not exist at a very low level. The U.S. has taken a number of precautionary measures to reduce both the risk of importing the disease and the risk of the disease spreading if it were to appear. Those measures include a ban on the feeding of ruminant protein to ruminants--a measure that the General Accounting Office concluded was not being adequately enforced and which failed to halt the disease in the U.K. We present an overview of BSE in the U.K., the EU, and Japan and present an argument for implementing additional precautionary measures in the U.S.