cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
ACCESS: NIR Luminosity Function and Stellar Mass Function of Galaxies in the Shapley Supercluster Environment
Creators: name: Merluzzi, P.
name: Mercurio, A.
name: Haines, C. P.
name: Smith, R. J.
name: Busarello, G.
name: Lucey, J. R.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the NIR luminosity (LF) and stellar mass functions (SMF) of galaxies in the core of the Shapley supercluster at z=0.048, based on new K-band observations in conjunction with B- and R-band photometry and a subsample of ~650 galaxies spectroscopically confirmed supercluster members, allowing to investigate the galaxies down to M_K^*+6 and M=10^8.75 M_sun. For the 3 deg^2 field the K-band LF is described by a Schechter function with M_K^*=-24.96+-0.10 and α=-1.42+-0.03. We investigate the effect of environment by deriving the LF in three regions selected according to the local galaxy density, and observe a significant increase in the faint-end slope going from the high- (α=-1.33) to the low-density (α=-1.49) environments. The SMF is fitted well by a Schechter function with log_10(M^*)=11.16+-0.04 and α=-1.20+-0.02. The SMF of supercluster galaxies is also characterised by an excess of massive galaxies that are associated to the cluster BCGs. While the value of M* depends on environment the slope of the galaxy SMF does not vary with the environment. By comparing our findings with cosmological simulations, we conclude that the environmental dependences of the LF are not primary due to variations in the merging histories, but to processes which are not treated in the semi-analytical models, such as tidal stripping or harassment. In field regions the SMF shows a sharp upturn below M=10^9 M_sun, close to our mass limit, suggesting that the upturns seen in our K-band LFs, but not in the SMF, are due to this dwarf population. The environmental variations seen in the faint-end of the K-band LF suggests that dwarf galaxies, which are easier to strip than their more massive counterparts, are affected by tidal/gas stripping upon entering the supercluster.
description: 16 pages, 11 figures, MNRAS in press, text and figures slightly modified following editor's requirements
Dense matter in compact stars - A pedagogical introduction
Creators: name: Schmitt, Andreas
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Cold and dense nuclear and/or quark matter can be found in the interior of compact stars. It is very challenging to determine the ground state and properties of this matter because of the strong-coupling nature of QCD. I give a pedagogical introduction to microscopic calculations based on phenomenological models, effective theories, and perturbative QCD. I discuss how the results of these calculations can be related to astrophysical observations to potentially rule out or confirm candidate phases of dense matter.
description: 138+10 pages, v2: small modifications, typos fixed, Figs. 2.1 and 3.7 slightly changed; to appear in Lect. Notes Phys. (Springer), ISBN 978-3-642-12865-3
Linear Spectropolarimetric Analysis of Fairall 9 with VLT/FORS2
Creators: name: Jiang, Bo-Wei
name: Marziani, Paola
name: Savić, Đorđe
name: Shablovinskaya, Elena
name: Popović, Luka Č.
name: Afanasiev, Victor L.
name: Czerny, Bożena
name: Wang, Jian-Min
name: del Olmo, Ascensión
name: D'Onofrio, Mauro
name: Śniegowska, Marzena
name: Mazzei, Paola
name: Panda, Swayamtrupta
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The quasar Main Sequence (MS) appears to be an incredibly powerful tool to organize the diversity in large samples of type-1 quasars but the most important physical parameters governing it are still unclear. Here we investigate the origin of the broadening and of a defining feature of Population B sources: a strong redward asymmetry of the Balmer emission lines. We focus on a prototypical source, Fairall 9. Spectropolarimetric data of the Fairall 9 broad H$β$ and H$α$ profiles allowed for a view of the geometric and dynamical complexity of the line emitting regions. Measurements (1) provided evidence of rotational motion; (2) were helpful to test the presence of polar and equatorial scatterers, and their association with non-virial motions.
description: 22 pages, 3 tables and 14 figures. Accepted for publication in MNRAS
Additional file 1 of In vivo tau pathology is associated with synaptic loss and altered synaptic function
Creators: name: Coomans, Emma M.
name: Schoonhoven, Deborah N.
name: Tuncel, Hayel
name: Verfaillie, Sander C. J.
name: Wolters, Emma E.
name: Boellaard, Ronald
name: Ossenkoppele, Rik
name: den Braber, Anouk
name: Scheper, Wiep
name: Schober, Patrick
name: Sweeney, Steven P.
name: Ryan, J. Michael
name: Schuit, Robert C.
name: Windhorst, Albert D.
name: Barkhof, Frederik
name: Scheltens, Philip
name: Golla, Sandeep S. V.
name: Hillebrand, Arjan
name: Gouw, Alida A.
name: van Berckel, Bart N. M.
Publisher: name: figshare
Year: 2021
Subjects: subject: Physical Sciences not elsewhere classified
subject: Medicine
subject: Cell Biology
subject: Neuroscience
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Mental Health

description: Additional file 1: Figure S1. Across-subject correlations between regional [18F]flortaucipir BPND or [11C]UCB-J BPND and MEG spectral measures in the temporal lobe. Figure S2. Across-subject correlations between regional [18F]flortaucipir BPND or [11C]UCB-J BPND and MEG spectral measures in the parietal lobe. Figure S3. Across-subject correlations between regional [18F]flortaucipir BPND, or [11C]UCB-J BPND, and MEG spectral measures in the frontal lobe. Figure S4. Correlations between MMSE and averages of [18F]flortaucipir BPND, [11C]UCB-J BPND, MEG occipital absolute broadband power and MEG occipital relative alpha power.
The time evolution of the trajectories after the selectivity in a symmetric potential energy surface with a post-transition-state bifurcation
Creators: name: Haigh, Douglas
name: Katsanikas, Matthaios
name: Agaoglou, Makrina
name: Wiggins, Stephen
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Dynamical Systems (math.DS)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 37N99, 70K44, 70H05, 70H07, 34C45, 34C37

description: Selectivity is an important phenomenon in chemical reaction dynamics. This can be quantified by the branching ratio of the trajectories that visit one or the other wells to the total number of trajectories in a system with a potential with two sequential index-1 saddles and two wells (top well and bottom well). In our case, the branching ratio is 1:1 because of the symmetry of our potential energy surface. The mechanisms of transport and the behavior of the trajectories in this kind of systems have been studied recently. In this paper we study the time evolution after the selectivity as energy varies using periodic orbit dividing surfaces. We investigate what happens after the first visit of a trajectory to the region of the top or the bottom well for different values of energy. We answer the natural question, what is the destiny of these trajectories?
معايير التعويض عن الضرر الناشئ عن التعدي على العلامة التجارية: دراسة تحليلية
Creators: name: Mustapha, Alfurke
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 480102
subject: Commercial law

description: معايير التعويض عن الضرر الناشئ عن التعدي على العلامة التجارية: دراسة تحليليةStandards for Compensation for Damages Arising from Trademark Infringement: An Analytical Studyالباحثة : نردين عبد المحسن عراقي طالبة ماجستير، قسم القانون الخاص كلية الحقوق، جامعة الملك عبدالعزيز الدكتورة: هاديه احمد بالخيور أستاذ مساعد في القانون التجاري، قسم القانون الخاص كلية الحقوق، جامعة الملك عبدالعزيز
Porous block copolymer separation membranes for 21st century sanitation and hygiene
Creators: name: Guo, Leiming
name: Wang, Yong
name: Steinhart, Martin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Removing hazardous particulate and macromolecular contaminants as well as viruses with sizes from a few nm up to the 100-nm-range from water and air is crucial for ensuring sufficient sanitation and hygiene for a growing world population. To this end, high-performance separation membranes are needed that combine high permeance, high selectivity and sufficient mechanical stability under operating conditions. However, design features of separation membranes enhancing permeance reduce selectivity and vice versa. Membrane configurations combining high permeance and high selectivity suffer in turn from a lack of mechanical robustness. These problems may be tackled by using block copolymers (BCPs) as a material platform for the design of separation membranes. BCPs are macromolecules that consist of two or more chemically distinct block segments, which undergo microphase separation yielding a wealth of ordered nanoscopic domain structures. Various methods allow the transformation of these nanoscopic domain structures into customized nanopore systems with pore sizes in the sub-100-nm range and with narrow pore size distributions. This tutorial review summarizes design strategies for nanoporous state-of-the-art BCP separation membranes, their preparation, their device integration and their use for water purification.
Constant surface gravity and density profile of dark matter
Creators: name: de Vega, H. J.
name: Sanchez, N. G.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Cumulative observational evidence confirm that the surface gravity of dark matter (DM) halo mu_{0 D} = r_0 rho_0 where r_0 and rho_0 are the halo core radius and central density, respectively, is nearly constant and independent of galaxy luminosity for a high number of galactic systems (spirals, dwarf irregular and spheroidals, elliptics) spanning over 14 magnitudes in luminosity and of different Hubble types. Remarkably, its numerical value mu_{0 D} = 140 M_{sun}/pc^2 = (18.6 Mev)^3 is approximately the same (up to a factor of two) in all these systems. First, we present the physical consequences of the independence of mu_{0 D} on r_0: the energy scales as the volume sim r_0^3 while the mass and the entropy scale as the surface ~ r_0^2 and the surface times log r_0, respectively. Namely, the entropy scales similarly to the black-hole entropy but with a much smaller coefficient. Second, we compute the surface gravity and the density profile for small scales from first principles and the evolution of primordial density fluctuations since the end of inflation till today using the linearized Boltzmann-Vlasov equation. The density profile rho_{lin}(r) obtained in this way decreases as r^{-1-n_s/2} for intermediate scales where n_s = 0.964 is the primordial spectral index. This scaling is in remarkable agreement with the empirical behaviour found observationally and in N-body simulations: r^{-1.6\pm 0.4}. The observed value of mu_{0 D} indicates that the DM particle mass m is in the keV scale. The theoretically derived density profiles rho_{lin}(r) turn to be cored for m in the keV scale and they look as cusped for m in the GeV scale or beyond. We consider both fermions and bosons as DM particles decoupling either ultrarelativistically or non-relativistically. Our results do not use any particle physics model and vary slightly with the statistics of the DM particle.
description: 12 pages, 2 figures. Expanded and improved version to appear in Int J Mod Phys A
Strange Attractors in Dissipative Nambu Mechanics : Classical and Quantum Aspects
Creators: name: Axenides, Minos
name: Floratos, Emmanuel
Publisher: name: arXiv
Year: 2009
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We extend the framework of Nambu-Hamiltonian Mechanics to include dissipation in $R^{3}$ phase space. We demonstrate that it accommodates the phase space dynamics of low dimensional dissipative systems such as the much studied Lorenz and Rössler Strange attractors, as well as the more recent constructions of Chen and Leipnik-Newton. The rotational, volume preserving part of the flow preserves in time a family of two intersecting surfaces, the so called {\em Nambu Hamiltonians}. They foliate the entire phase space and are, in turn, deformed in time by Dissipation which represents their irrotational part of the flow. It is given by the gradient of a scalar function and is responsible for the emergence of the Strange Attractors. Based on our recent work on Quantum Nambu Mechanics, we provide an explicit quantization of the Lorenz attractor through the introduction of Non-commutative phase space coordinates as Hermitian $ N \times N $ matrices in $ R^{3}$. They satisfy the commutation relations induced by one of the two Nambu Hamiltonians, the second one generating a unique time evolution. Dissipation is incorporated quantum mechanically in a self-consistent way having the correct classical limit without the introduction of external degrees of freedom. Due to its volume phase space contraction it violates the quantum commutation relations. We demonstrate that the Heisenberg-Nambu evolution equations for the Quantum Lorenz system give rise to an attracting ellipsoid in the $3 N^{2}$ dimensional phase space.
description: 35 pages, 4 figures, LaTex
Enriching Ontology with Temporal Commonsense for Low-Resource Audio Tagging
Creators: name: Zhang, Zhiling
name: Zhou, Zelin
name: Tang, Haifeng
name: Li, Guangwei
name: Wu, Mengyue
name: Zhu, Kenny Q.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Sound (cs.SD)
subject: Audio and Speech Processing (eess.AS)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Audio tagging aims at predicting sound events occurred in a recording. Traditional models require enormous laborious annotations, otherwise performance degeneration will be the norm. Therefore, we investigate robust audio tagging models in low-resource scenarios with the enhancement of knowledge graphs. Besides existing ontological knowledge, we further propose a semi-automatic approach that can construct temporal knowledge graphs on diverse domain-specific label sets. Moreover, we leverage a variant of relation-aware graph neural network, D-GCN, to combine the strength of the two knowledge types. Experiments on AudioSet and SONYC urban sound tagging datasets suggest the effectiveness of the introduced temporal knowledge, and the advantage of the combined KGs with D-GCN over single knowledge source.
description: CIKM 2021
Klamydiaregistret
Creators: Statens Serum Institut
Publisher: name: Rigsarkivet
Year: 2022

description: Registrets formål er at registerelaboratorieverificerede tilfælde af oculo-genitale forekomster af Chlamydia trachmatis (CT) med henblik på at overvåge sygdommen klamydias epidemiologi.
Geometric (Pythagorean) and Functional Analysis in Support of the Riemann Hypothesis: A Number-Theoretic Foundation with a New Spatial Interpretation
Creators: name: Bozhilov, Dobri
name: ChatGPT
Publisher: name: Dobri Bozhilov
Year: 2025
Subjects: Riemann Hypothesis
Zeta Function
Geometry
Number Theory
Artificial Intelligence
Pythagoras

description: We propose a geometric-functional hypothesis supporting the Riemann Hypothesis, grounded in number theory and inspired by the Pythagorean theorem. By treating the complex argument of the Riemann zeta function as a vector in the complex plane, we analyze the modulus of the function in relation to the real and imaginary parts of its input. We argue that only the critical line ℜ(s) = 1/2 yields a balanced vector structure that satisfies both the Pythagorean identity and the necessary conditions for ζ(s) to vanish. Additional reasoning involving vector alignment between known nontrivial zeros and geometric constraints supports the uniqueness of the critical line. The work represents a collaborative exploration between a human researcher and an artificial intelligence (ChatGPT), highlighting a novel approach to one of mathematics’ most profound unsolved problems.
Exact solutions of classical scalar field equations
Creators: name: Frasca, Marco
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences
subject: 35C05, 35C20

description: We give a class of exact solutions of quartic scalar field theories. These solutions prove to be interesting as are characterized by the production of mass contributions arising from the nonlinear terms while maintaining a wave-like behavior. So, a quartic massless equation has a nonlinear wave solution with a dispersion relation of a massive wave and a quartic scalar theory gets its mass term renormalized in the dispersion relation through a term depending on the coupling and an integration constant. When spontaneous breaking of symmetry is considered, such wave-like solutions show how a mass term with the wrong sign and the nonlinearity give rise to a proper dispersion relation. These latter solutions do not change the sign maintaining the property of the selected value of the equilibrium state. Then, we use these solutions to obtain a quantum field theory for the case of a quartic massless field. We get the propagator from a first order correction showing that is consistent in the limit of a very large coupling. The spectrum of a massless quartic scalar field theory is then provided. From this we can conclude that, for an infinite countable number of exact classical solutions, there exist an infinite number of equivalent quantum field theories that are trivial in the limit of the coupling going to infinity.
description: 7 pages, no figures. Added proof of existence of a zero mode and two more references. Accepted for publication in Journal of Nonlinear Mathematical Physics
Det Danske CO2-kvoteregister
Creators: Energistyrelsen
Publisher: name: Rigsarkivet
Year: 2022

description: Kvoteregisterets hovedformål er firdelt, det er en vigtig del af statens kyotoforpligtelse overfor FN, det skal sikre, at virksomhederne under EU's kvoteordning får overført det antal kvoter, som de er berettiget til, det fører regnskab med om virksomheder under EU's kvotehandelsordning overholder deres reduktionsforpligtelse og endelig skal det sikre at handel med kvoter og kreditter foregår sikkert og smidigt.
Two phase galaxy formation: The Evolutionary Properties of Galaxies
Creators: name: Cook, M
name: Barausse, E
name: Evoli, C
name: Lapi, A
name: Granato, GL
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We use our model for the formation and evolution of galaxies within a two-phase galaxy formation scenario, showing that the high-redshift domain typically supports the growth of spheroidal systems, whereas at low redshifts the predominant baryonic growth mechanism is quiescent and may therefore support the growth of a disc structure. Under this framework we investigate the evolving galaxy population by comparing key observations at both low and high-redshifts, finding generally good agreement. By analysing the evolutionary properties of this model, we are able to recreate several features of the evolving galaxy population with redshift, naturally reproducing number counts of massive star-forming galaxies at high redshifts, along with the galaxy scaling relations, star formation rate density and evolution of the stellar mass function. Building upon these encouraging agreements, we make model predictions that can be tested by future observations. In particular, we present the expected evolution to z=2 of the super-massive black hole mass function, and we show that the gas fraction in galaxies should decrease with increasing redshift in a mass, with more and more evolution going to higher and higher masses. Also, the characteristic transition mass from disc to bulge dominated system should decrease with increasing redshift.
description: 15 pages, 11 figures. Version polished for publication in MNRAS
Regnskabsstatistik for jordbrug 2008
Creators: Danmarks Statistik
Publisher: name: Rigsarkivet
Year: 2022

description: Danske myndigheder, herunder især Fødevareministeriet, forskere og studerende nationalt og internationalt, landbrugets og gartneriets organisationer. Virksomheder relateret til jordbrugssektoren i bred forstand, f.eks. kreditgivere. Data anvendes også som grundlag for fremskrivningen i konjunkturafsnittet i publikationen "Landbrugets økonomi" fra Fødevareøkonomisk institut på Københavns Universitet. Data videregives til EU, Informationsnettet for Landøkonomisk Bogføring, INLB, på fransk RICA, på engelsk FADN. Data er grundlag for jordbrugspolitiske beslutninger på nationalt og EU niveau.
The Atacama Cosmology Telescope (ACT): Beam Profiles and First SZ Cluster Maps
Creators: name: Hincks, A. D.
name: Acquaviva, V.
name: Ade, P.
name: Aguirre, P.
name: Amiri, M.
name: Appel, J. W.
name: Barrientos, L. F.
name: Battistelli, E. S.
name: Bond, J. R.
name: Brown, B.
name: Burger, B.
name: Chervenak, J.
name: Das, S.
name: Devlin, M. J.
name: Dicker, S.
name: Doriese, W. B.
name: Dunkley, J.
name: Dünner, R.
name: Essinger-Hileman, T.
name: Fisher, R. P.
name: Fowler, J. W.
name: Hajian, A.
name: Halpern, M.
name: Hasselfield, M.
name: Hernández-Monteagudo, C.
name: Hilton, G. C.
name: Hilton, M.
name: Hlozek, R.
name: Huffenberger, K.
name: Hughes, D.
name: Hughes, J. P.
name: Infante, L.
name: Irwin, K. D.
name: Jimenez, R.
name: Juin, J. B.
name: Kaul, M.
name: Klein, J.
name: Kosowsky, A.
name: Lau, J. M.
name: Limon, M.
name: Lin, Y. -T.
name: Lupton, R. H.
name: Marriage, T.
name: Marsden, D.
name: Martocci, K.
name: Mauskopf, P.
name: Menanteau, F.
name: Moodley, K.
name: Moseley, H.
name: Netterfield, C. B.
name: Niemack, M. D.
name: Nolta, M. R.
name: Page, L. A.
name: Parker, L.
name: Partridge, B.
name: Quintana, H.
name: Reid, B.
name: Sehgal, N.
name: Sievers, J.
name: Spergel, D. N.
name: Staggs, S. T.
name: Stryzak, O.
name: Swetz, D.
name: Switzer, E.
name: Thornton, R.
name: Trac, H.
name: Tucker, C.
name: Verde, L.
name: Warne, R.
name: Wilson, G.
name: Wollack, E.
name: Zhao, Y.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The Atacama Cosmology Telescope (ACT) is currently observing the cosmic microwave background with arcminute resolution at 148 GHz, 218 GHz, and 277 GHz. In this paper, we present ACT's first results. Data have been analyzed using a maximum-likelihood map-making method which uses B-splines to model and remove the atmospheric signal. It has been used to make high-precision beam maps from which we determine the experiment's window functions. This beam information directly impacts all subsequent analyses of the data. We also used the method to map a sample of galaxy clusters via the Sunyaev-Zel'dovich (SZ) effect, and show five clusters previously detected with X-ray or SZ observations. We provide integrated Compton-y measurements for each cluster. Of particular interest is our detection of the z = 0.44 component of A3128 and our current non-detection of the low-redshift part, providing strong evidence that the further cluster is more massive as suggested by X-ray measurements. This is a compelling example of the redshift-independent mass selection of the SZ effect.
description: 16 pages, 10 figures. Accepted for publication in ApJS. See Marriage et al. (arXiv:1010.1065) and Menanteau et al. (arXiv:1006.5126) for additional cluster results
Regnskabsstatistik for jordbrug 2009
Creators: Danmarks Statistik
Publisher: name: Rigsarkivet
Year: 2022

description: Danske myndigheder, herunder især Fødevareministeriet, forskere og studerende nationalt og internationalt, landbrugets og gartneriets organisationer. Virksomheder relateret til jordbrugssektoren i bred forstand, f.eks. kreditgivere. Data anvendes også som grundlag for fremskrivningen i konjunkturafsnittet i publikationen "Landbrugets økonomi" fra Fødevareøkonomisk institut på Københavns Universitet. Data videregives til EU, Informationsnettet for Landøkonomisk Bogføring, INLB, på fransk RICA, på engelsk FADN. Data er grundlag for jordbrugspolitiske beslutninger på nationalt og EU niveau.
Dynamic Valley Polarization in Moire Quantum Dots
Creators: name: Smirnov, D. S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We describe the effects of the crossing of the exciton levels in moire quantum dots in external magnetic field. We demonstrate that the unpolarized light can create significant dynamic valley polarization of interlayer excitons in the conditions where the Zeeman energy is much smaller than the thermal energy. The angular momentum is gained by the excitons from the nuclear spin fluctuations. In the $n$-type moire quantum dots for the typical experimental parameters, the unpolarized light can lead to the complete valley polarization of the resident electrons.
description: 6 pages, 5 figures
Diffractive Microlensing I: Flickering Planetesimals at the Edge of the Solar System
Creators: name: Heyl, Jeeremy
Publisher: name: arXiv
Year: 2009
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Microlensing and occultation are generally studied in the geometric optics limit. However, diffraction may be important when recently discovered Kuiper-Belt objects (KBOs) occult distant stars. In particular the effects of diffraction become more important as the wavelength of the observation and the distance to the KBO increase. For sufficiently distant and massive KBOs or Oort cloud objects not only is diffraction important but so is gravitational lensing. For an object similar to Eris but located in the Oort cloud, the signature of gravitational lensing would be detected easily during an occultation and would give constraints on the mass and radius of the object.
description: 5 pages, 4 figures, changes to reflect the version accepted by MN Letters
Coexisting conventional and inverse mechanocaloric effects in ferroelectrics
Creators: name: Murillo-Navarro, Diana E.
name: Graf, Mónica
name: Íñiguez, Jorge
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The mechanocaloric effect is the temperature change of a material upon application or removal of an external stress. Beyond its fundamental interest, this caloric response represents a promising and ecofriendly alternative to current cooling technologies. To obtain large mechanocaloric effects, we need materials whose elastic properties (e.g., strain, elastic compliance) are strongly temperature dependent. This is the case of ferroelectric perovskite oxides, where the development of the spontaneous electric polarization is accompanied by significant strains and lattice softening. Thus, in this work we study the mechanocaloric properties of model ferroelectric PbTiO$_{3}$, by means of predictive atomistic ("second-principles") simulations and a perturbative formalism here introduced. Our calculations reveal relatively large effects (up to $-$4 K for relatively small applied compressions of $-$0.1 GPa) and several striking features. In particular, we find that the mechanocaloric response is highly anisotropic in the ferroelectric phase, as it can be either conventional (temperature increases upon compression) or inverse (temperature decreases) depending on the direction of the applied stress. We discuss and explain these surprising results, which compare well with existing experimental information. Our analysis suggests that the coexistence of conventional and inverse mechanocaloric responses is probably common among ferroelectrics and materials displaying a negative thermal expansion.
description: 9 pages, 5 figures
A Study of Chinese Language Teaching and Learning in the Department of Chinese Studies, Nnamdi Azikiwe University, Awka, Nigeria. 尼日利亚纳姆迪·阿齐克韦大学中文系汉语教学现状调查研究
Creators: name: Okafor, Miracle Uzochukwu
Publisher: name: figshare
Year: 2021
Subjects: subject: 200311 Chinese Languages
subject: FOS: Languages and literature
subject: 209999 Language, Communication and Culture not elsewhere classified

description: With the advancement of the Chinese economy and increasing win-win cooperation between China and Nigeria, Chinese language teaching and learning in Nigeria has made rapid growth in recent years. There has been the establishment of many Confucius institutes, Chinese language centers, and Chinese cultural exchange centers across Nigeria. Some States and educational institutions have started including Chinese studies in their curriculum. Therefore this paper through the use of questionnaires, interviews, observations, and participation methods, surveyed the current situation of Chinese language teaching and learning in the Chinese Studies Department, Nnamdi Azikiwe University, Awka (NAU). The study investigates the Department's current situation of teaching and learning, courses/curriculum, teaching and learning materials, and other challenges. Finally, the paper suggested ways of how to improve Chinese teaching and learning in the Department.
Regnskabsstatistik for jordbrug 2010
Creators: Danmarks Statistik
Publisher: name: Rigsarkivet
Year: 2022

description: Danske myndigheder, herunder især Fødevareministeriet, forskere og studerende nationalt og internationalt, landbrugets og gartneriets organisationer. Virksomheder relateret til jordbrugssektoren i bred forstand, f.eks. kreditgivere. Data anvendes også som grundlag for fremskrivningen i konjunkturafsnittet i publikationen "Landbrugets økonomi" fra Fødevareøkonomisk institut på Københavns Universitet. Data videregives til EU, Informationsnettet for Landøkonomisk Bogføring, INLB, på fransk RICA, på engelsk FADN. Data er grundlag for jordbrugspolitiske beslutninger på nationalt og EU niveau.
Simultaneous heat and mass transfer in wet wood particles
Creators: name: Edwards, Wayne Clifford
Publisher: name: University of British Columbia
Year: 2010

description: A study is made of the simultaneous heat and mass transfer processes which occur within a finite wood cylinder of circular cross-section when it is convectively dried. Governing transport equations are developed allowing for the functional dependence of both thermal and moisture diffusivities on moisture content and temperature. Derivative type boundary conditions are included in the analysis. The equations are formulated using a cylindrical coordinate system because it is well suited to modelling wood's anisotropy. In the case considered, the axial coordinate direction is aligned with the wood-grain. Due to the coupling and non-linearity present in the transport and boundary equations, an implicit finite-difference solution scheme is formulated. The three-time-level scheme uses an equation splitting technique to simplify its solution on the computer. A mathematical wood-model, as available in the literature, is refined and used to determine moisture and thermal diffusivities, and mass transfer boundary conditions. Results from this wood-model apply to softwoods below the fiber-saturation moisture content. Combined diffusivities of liquid and vapour are calculated for the radial and axial directions and results for the radial direction are compared to those found from diffusion experiments. Desorptional isotherms are used in the mass transfer boundary condition equations to relate surface humidity and moisture content. The wood-model is used in the mass transfer equation to determine wood drying behaviour under isothermal conditions. Initial moisture contents are uniform and equal to the fiber-saturation value. Solutions are presented to give local and average moisture content as a function of time as well as moisture content profiles. The effect of drying temperature was investigated for one case of wood density and shrinkage.
Generalised Kohn-Sham equations with accurate total energy and single-particle eigenvalue spectrum
Creators: name: Pitts, Thomas C.
name: Lathiotakis, Nektarios N.
name: Gidopoulos, Nikitas I.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We propose a new generalised Kohn-Sham or constrained hybrid method, where the exchange potential is the (equally weighted) average of the nonlocal Fock exchange term and the self-interaction-corrected exchange potential, as obtained from our constrained minimisation method of semi-local approximations. The new method gives an accurate single-particle eigenvalue spectrum with an average deviation between (the negative of) the valence orbital eigenvalues and the experimental ionisation potentials of about 0.5eV, while the deviation of core orbitals is within 2eV. The improvement in the eigenvalue spectrum is achieved with a minimal increase in the total energy.
Physical properties of a quasi-two-dimensional square lattice antiferromagnet Ba$_2$FeSi$_2$O$_7$
Creators: name: Jang, Tae-Hwan
name: Do, Seung-Hwan
name: Lee, Minseong
name: Zapf, Vivien S.
name: Wu, Hui
name: Brown, Craig M.
name: Christianson, Andrew D.
name: Cheong, Sang-Wook
name: Park, Jae-Hoon
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report the magnetization ($χ$, $M$), specific heat ($C_{\text{P}}$), and neutron powder diffraction results on a quasi-two-dimensional $S$ = 2 square lattice antiferromagnet Ba$_2$FeSi$_2$O$_7$ consisting of FeO$_4$ tetragons with a large compressive distortion (27%). Despite of the quasi-two-dimensional lattice structure, both $χ$ and $C_{\text{P}}$ present three dimensional magnetic long-range order below the Néel temperature $T_{\text{N}}$ = 5.2 K. Neutron diffraction data shows a collinear $Q_{m}$ = (1,0,0.5) antiferromagnetic (AFM) structure with the in-plane ordered magnetic moment suppressed by 26% below $T_{\text{N}}$. Both the AFM structure and the suppressed moments are well explained by the Monte Carlo simulation with a large single-ion ab-plane anisotropy $D$ = 1.4 meV and a rather small in-plane Heisenberg exchange $J_{\text{intra}}$ = 0.15 meV. The characteristic two dimensional spin fluctuations can be recognized in the magnetic entropy release and diffuse scattering above $T_{\text{N}}$. This new quasi-2D magnetic system also displays unusual non-monotonic dependence of the $T_{\text{N}}$ as a function of magnetic field $H$.
description: 23 pages
Progetto del circuito di lubrificazione di una trattrice agricola
Creators: name: Pagliarani, Stefano <1978>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2009
Subjects: AGR/09 Meccanica agraria

description: Today the design of hydraulic and lubrication circuits is becoming more and more important. The aim of this study is to develop a methodology for the design of the lubrication circuit of an agricultural tractor. In this paper the lubrication circuit of a continuously variable transmission is analysed. Several lines of the circuit are considered and in particular the lubrication of gears is discussed. The worst possible working condition which corresponds to the highest power dissipation for each part of the transmission is determined. The model of the lubrication circuit is developed with two different software simulations (Automation Studio & Amesim). In order to check the reliability of the simulation models and to characterise the lubrication circuit, experimental tests are performed. The comparison between the values of pressure drops obtained by the models and by the experimental test, demonstrates that it is possible to use these programs for the set up of a simple model of the lubrication circuit. The calculation of oil flows necessary for a force-fed lubrication of the gears, the simulation of the circuit by commercial software, and the validation of the circuit design allow to set up a preliminary equilibrium among the pipes and a proper flow rate distribution. Optimising the circuit design in the initial phase of the project is very important. The experimental adjustment of the circuit, which is often difficult, can be simplified; time and cost production can be reduced.
La ricerca del valore nell'impresa cooperativa di lavorazione e trasformazione: cooperative e imprese capitalistiche a confronto
The value of cooperative: comparison between cooperative and non-cooperative firm
Creators: name: Guidi, Giorgia <1980>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: SECS-P/07 Economia aziendale

description: La ricerca si propone un duplice obbiettivo: 
1. provare, attraverso l’applicazione di un metodo teorico tradizionale di analisi economico-finanziaria, il livello ottimale di equilibrio finanziario fra accesso al credito esterno e capitale proprio;
2. mostrare l’utilità di alcuni strumenti finanziari partecipativi per la ricapitalizzazione dell’impresa cooperativa.
Oggetto di studio è l’impresa cooperativa che si occupa di una o più fasi del processo di lavorazione, trasformazione e prima commercializzazione del prodotto agricolo conferito dai soci, confrontata con le imprese di capitali che svolgono la medesima attività. La società cooperativa e quella capitalistica saranno, pertanto analizzate in termini di liquidità generata, redditività prodotta e grado di indebitamento, attraverso il calcolo e l’analisi di una serie di indici, tratti dai rispettivi bilanci d’esercizio.
È opportuno sottolineare che nella seguente trattazione sarà riservato uno spazio al tema della ricerca del valore nell’impresa cooperativa inteso come espressione della ricchezza creata dai processi aziendali in un determinato periodo di tempo tentando di definire, se esiste, una struttura finanziaria ottimale , ossia uno specifico rapporto tra indebitamento finanziario e mezzi propri, che massimizzi il valore dell’impresa. 
L’attenzione verso la struttura finanziaria, pertanto, non sarà solo rivolta al costo esplicito del debito o dell’equity, ma si estenderà anche alle implicazioni delle scelte di finanziamento sulle modalità di governo dell’impresa. Infatti molti studi di economia aziendale, e in particolar modo di gestione d’impresa e finanza aziendale, hanno trattato il tema dell’attività di governo dell’impresa, quale elemento in grado di contribuire alla creazione di valore non solo attraverso la selezione dei progetti d’investimento ma anche attraverso la composizione della struttura finanziaria.
description: Cooperatives have been chosen as starting point of this analysis because they represent a form of vertical
integration of the supply chain. As a matter of fact, cooperatives are almost a projection of their members’
firms and have an immediate fall-out effect on the economy at territorial level.
The specific objectives were: identification of ratios of performance of cooperatives; evaluation of credit worth to improve the bank-cooperative relationship; evaluation of the creation of value in the cooperatives and non-cooperatives.
Data of balansheets are based on AIDA databank and the financial ratios were: profitability, capital invested and working capital, collection period, inventories, debts and financial cycle, cost of leverage, cash flows, strategy of investment.
Udenrigshandel med varer 2004
Creators: Danmarks Statistik
Publisher: name: Rigsarkivet
Year: 2022

description: Registrets formål er at belyse Danmarks varehandel med andre lande. Registret er forordningsbelagt.
Data anvendes bla, af diverse offentlige myndigheder som led i det nødvendige beslutningsgrundlag. Derudover anvendes de af en lang række private organisationer, firmaer mm. De detaljerede data anvendes desuden til forskning mm.
Mysterious Dust-emitting Object Orbiting TIC 400799224
Creators: name: Powell, Brian P.
name: Kostov, Veselin
name: Rappaport, Saul
name: Tokovinin, Andrei
name: Shporer, Avi
name: Collins, Karen
name: Corbett, Hank
name: Borkovits, Tamas
name: Gary, Bruce
name: Chiang, Eugene
name: Rodriguez, Joseph
name: Law, Nicholas
name: Barclay, Thomas
name: Gagliano, Robert
name: Vanderburg, Andrew
name: Olmschenk, Greg
name: Kruse, Ethan
name: Schlieder, Joshua
name: Soto, Alan
name: Goeke, Erin
name: Jacobs, Thomas
name: Kristiansen, Martti
name: LaCourse, Daryll
name: Omohundro, Mark
name: Schwengeler, Hans
name: Terentev, Ivan
name: Schmitt, Allan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report the discovery of a unique object of uncertain nature -- but quite possibly a disintegrating asteroid or minor planet -- orbiting one star of the widely separated binary TIC 400799224. We initially identified the system in data from TESS Sector 10 via an abnormally-shaped fading event in the light curve (hereafter 'dips'). Follow-up speckle imaging determined that TIC 400799224 is actually two stars of similar brightness at 0.62" separation, forming a likely bound binary with projected separation of ~300 au. We cannot yet determine which star in the binary is host to the dips in flux. ASAS-SN and Evryscope archival data show that there is a strong periodicity of the dips at ~19.77 days, leading us to believe that an occulting object is orbiting the host star, though the duration, depth, and shape of the dips vary substantially. Statistical analysis of the ASAS-SN data shows that the dips only occur sporadically at a detectable threshold in approximately one out of every three to five transits, lending credence to the possibility that the occulter is a sporadically-emitted dust cloud. The cloud is also fairly optically thick, blocking up to 37% or 75% of the light from the host star, depending on the true host. Further observations may allow for greater detail to be gleaned as to the origin and composition of the occulter, as well as to a determination of which of the two stars comprising TIC 400799224 is the true host star of the dips.
description: Accepted for publication by The Astronomical Journal, 1 October 2021
A gender analysis of children?s well-being and capabilities through time use data
Creators: name: RODRIGUEZ MODRONO, PAULA
name: G�Lvez Mu�Oz, L.
name: Matus L�Pez, M.
name: Dom�Nguez Serrano, M.
Publisher: name: Dipartimento di Economia Marco Biagi - Universit� degli Studi di Modena e Reggio Emilia
Year: 2013

description: The main goal of this paper is to analyse gender differences in children?s well-being by applying a capability approach and a gender perspective both to the study of the differences in children?s capabilities by gender and to the study of the impact of the gendered allocation of time on children?s capabilities. The econometric model used is a Multiple Indicator Multiple Causes model (MIMIC). The model is estimated on a sample of children in their middle and late childhood and uses micro-data from the Spanish Time Use Survey. The study focuses on the analysis of well-being through four capabilities: social relations, education and knowledge, leisure and play activities, and domestic and care work. The results point out to the fact that the labour market behaviour by gender is not only related to human capital formation, family conditions or labour market opportunities, but also to children's well-being. Furthermore, gender stereotypes continue influencing the development of children?s capabilities during their process of socialisation.
Unraveling the reaction mechanism for large alpha production and incomplete fusion in reactions involving weakly bound stable nuclei
Creators: name: Pandit, S. K.
name: Shrivastava, A.
name: Mahata, K.
name: Keeley, N.
name: Parkar, V. V.
name: Palit, R.
name: Rout, P. C.
name: Ramachandran, K.
name: Kumar, A.
name: Bhattacharyya, S.
name: Nanal, V.
name: Biswas, S.
name: Saha, S.
name: Sethi, J.
name: Singh, P.
name: Kailas, S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The origin of the large $α$ particle production and incomplete fusion in reactions involving weakly-bound $α$+$x$ cluster nuclei still remains unresolved. While the (two-step) process of breakup followed by capture of the ``free" complementary fragment ($x$) is widely believed to be responsible, a few recent studies suggest the dominant role of (direct) cluster stripping. To achieve an unambiguous experimental discrimination between these two processes, a coincidence measurement between the outgoing $α$ particles and $γ$ rays from the heavy residues has been performed for the $^7$Li($α$+triton)+$^{93}$Nb system. Proper choice of kinematical conditions allowed for the first time a significant population of the region accessible only to the direct triton stripping process and not to breakup followed by the capture of the ``free'' triton (from the three-body continuum). This result, also supported by a cluster-transfer calculation, clearly establishes the dominance of the direct cluster-stripping mechanism in the large alpha production.
Udenrigshandel med varer 2005
Creators: Danmarks Statistik
Publisher: name: Rigsarkivet
Year: 2022

description: Registrets formål er at belyse Danmarks varehandel med andre lande. Registret er forordningsbelagt.
Data anvendes bla, af diverse offentlige myndigheder som led i det nødvendige beslutningsgrundlag. Derudover anvendes de af en lang række private organisationer, firmaer mm. De detaljerede data anvendes desuden til forskning mm.
Short Term Mission: Cross-Domain and Cross-Country Collaboration to Develop Multivariate Syndromic Surveillance
Creators: name: Gustafsson, Wiktor
name: Dr Piyali Basu
name: Campling, Elaine
name: Professor Roberto La Ragione
Publisher: name: Zenodo
Year: 2020
Subjects: One Health European Joint Programme
OHEJP
Education and Training
Work Package 6
WP6

description: Short Term Missions (STMs) are small travel grants with the aim of sharing scientific expertise, methodologies, equipment and facilities to harmonise the existing approaches and methodologies within the large OHEJP network, and to drive the research forward in a collaborative and non-duplicative fashion to strengthen both the scientific capacity within the OHEJP and also future prevention, preparedness, detection and response of the EU to foodborne and other emerging threats across human-animal-environmental sectors. This is the case study produced by the OHEJP Communications Team to promote the outcomes of this Short Term Mission funded in 2020. The report from this Short Term Mission can be found here - D6.10: Report on Short Term Missions 2020 (Y3) | Zenodo.