cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
MARKETING IN ECONOMIC DEVELOPMENT
Creators: name: Delins, Everton R.
name: Delins, Everton R.
Publisher: name: Unknown
Year: 1970
Subjects: subject: International Development
subject: Marketing
subject: FOS: Economics and business

description: The increase of the rate of growth in the underdeveloped areas of the world bears today outstanding interest for both developed and underdeveloped nations. For developed societies, if only for an interest in the maintenance abroad of a leadership position, there are the needs for protection of the national investments overseas, for assurance of raw materials that may be needed, or for reflecting the increasing concern with development underway among underdeveloped nations. In the underdeveloped countries in general, where today about two thirds of the world population live, there is a widespread awareness that their economies are not keeping pace with the more developed nations, a great desire to speed up the growth of the various sectors of the national live is present. The people have become impatient because their expectations have not been realized as quickly as they would like, and eventually, conflicts among the politicians, intellectuals or those in power positions about the proper means to achieve higher rates of growth, allies with the pressures for improved levels of living, have prejudiced the tranquility of the society and hence of development itself. Economic growth is a felt need among the people in these countries, which, evidently is an indispensable condition for increased activity of the national economies. Research on development is thus in great demand. Perhaps even in more demand are people capable of applying the results of the research.
The evolution of magnetic dipole strength in $^{100-140}$ Sn isotope chain and quenching of nucleon g factors
Creators: name: Kruzic, G.
name: Oishi, T.
name: Paar, N.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The evolution of electromagnetic transitions along isotope chains is of particular importance for the nuclear structure and dynamics, as well as for the r-process nucleosynthesis. Recent measurement of inelastic proton scattering on even-even $^{112-124}$Sn isotopes provides a novel insight into the isotopic dependence of E1 and M1 strength distributions. We investigate M1 transitions in even-even $^{100-140}$Sn isotopes from a theoretical perspective, based on relativistic nuclear energy density functional. The M1 transition strength distribution is characterized by an interplay between single and double-peak structures, that can be understood from the evolution of single-particle states, their occupations governed by the pairing correlations, and two-quasiparticle transitions involved. It is shown that discrepancy between model calculations and experiment on B(M1) transition strength is considerably reduced than previously known, and the quenching of the g-factors for the free nucleons needed to reproduce the experimental data on M1 transition strength amounts $g_{eff}/g_{free}$=0.80-0.93. Since some of the B(M1) strength above the neutron threshold may be missing in the inelastic proton scattering measurement, further experimental studies are required to confirm if only small modifications of the bare g-factors are actually needed when applied in finite nuclei.
description: 8 pages, 7 figures, revised version
D. L. Clarke, Beaker Pottery of Great Britain and Ireland
Creators: name: Jacob-Friesen, Gernot
Publisher: name: Bonner Jahrbücher
Year: 2021

description: Rezension zu: D. L. Clarke, Beaker Pottery of Great Britain and Ireland. 2 Bde. Cambridge 1970. 576 Seiten mit 1087 Abbildungen und 10 Karten im Materialteil, 14 Abbildungen, darunter vier weiteren Karten im Textteil, 2 Farbtafeln, 8 Autotypietafeln sowie zahlreichen weiteren Tabellen und Schemata
description: Bonner Jahrbücher, Bd. 172.1972: Bonner Jahrbücher
Structural transitions and nonmonotonic relaxation processes in liquid metals
Creators: name: Vasin, M. G.
name: Lad'yanov, V. I.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Structural transitions in melts as well as their dynamics are considered. It is supposed that liquid represents the solution of relatively stable solid-like locally favored structures (LFS) in the surrounding of disordered normal-liquid structures. Within the framework of this approach the step changes of liquid Co viscosity are considered as liquid-liquid transitions. It is supposed that this sort of transitions represents the cooperative medium-range bond ordering, and corresponds to the transition of the "Newtonian fluid" to the "structured fluid". It is shown that relaxation processes with oscillating-like time behavior ($ω\sim 10^{-2}$~$s^{-1}$) of viscosity are possibly close to this point.
Farm and Retail Food Prices
Creators: name: Freebairn, John W.
name: Freebairn, John W.
Publisher: name: Unknown
Year: 1984
Subjects: Demand and Price Analysis

description: This paper analyses the relationship between monthly observations on farm level and retail level prices of three meats, seven fresh vegetables, five fresh fruits, eggs and cereals over the 1970's. A priori reasoning and results of Sim's casuality tests suggest that in most cases changes in farm prices cause changes in retail prices rather than the reverse or a simultaneous relationship. Markup price relationships are estimated. Most of the variation of retail prices is explained by the current farm price, lagged farm prices, a wage variable, and last period's retail price of a substitute product.
[Lexical elicitation]
Creators: name: Applegate, Richard B.
name: Ballard, Sarah
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2019
Subjects: subject: csi
subject: Bodega Miwok language

description: Elicitation sessions were held on and around March 18, 1974. See Miwok-sessions-RA-1974.pdf for the transcript of the recording sessions.
Kondo Effect in Multiple-Dot Systems
Creators: name: Sakano, Rui
name: Kawakami, Norio
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the Kondo effect in multiple-dot systems for which the inter- as well as intra-dot Coulomb repulsions are strong, and the inter-dot tunneling is small. The application of the Ward-Takahashi identity to the inter-dot dynamical susceptibility enables us to analytically calculate the conductance for a double-dot system by using the Bethe-ansatz exact solution of the SU(4) impurity Anderson model. It is clarified how the inter-dot Kondo effect enhances or suppresses the conductance under the control of the gate voltage and the magnetic field. We then extend our analysis to multiple-dot systems including more than two dots, and discuss their characteristic transport properties by taking a triple-dot system as an example.
description: 8 pages, 9 figures
PHENIX measurement of single electrons from charm and bottom decays at midrapidity in Au+Au collisions
Creators: name: Nagashima, Kazuya
Publisher: name: Zenodo
Year: 2021
Subjects: qm17
phenix
electron
charm
bottom
mid-rapidity
au+au
heavy flavor
nuclear
modification
raa
vtx
dca
invariant yield

description: Talk presented at the Quark Matter 2017 conference
A numerical simulation of the backward Raman amplifying in plasma
Creators: name: Hong-Yu, Wang
name: Zu-Qia, Huang
Publisher: name: arXiv
Year: 2005
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: This paper describe a numerical simulation method for the interaction between laser pulses and low density plasmas based on hydrodynamic approximation. We investigate Backward Raman Amplifying (BRA) experiments and their variants. The numerical results are in good agreement with experiments.
description: 11 pages, 4 figurs
Fake or fortunate? The insecure provenance of the 'Pulborough Area' torc.
Creators: name: Machling, Tess
name: Fregni, Giovanna
Publisher: name: Zenodo
Year: 2024

description: In September 2024 a paper, ‘The Pulborough gold torc: a 4th to 3rd century BCE artefact of European significance’ was published by a British Museum team in the online journal Internet Archaeology (Adams et al 2024). This paper was a response to our earlier paper ‘‘All the right notes, but not necessarily in the right order’: The riddle of the ‘Pulborough Area’ torc from Sussex.’ (Machling et al 2023).

The Adams et al paper claims to have ‘refuted’ (Adams et al 2024, 2. Discovery) our claim that the torc was of early 20th century manufacture, and further suggests that ‘Pulborough can be added to a small but growing group of mid- to late first millennium BCE gold items of personal adornment found in England’ (Adams et al 2024, 7. Conclusion).

However, we believe that the confidence of the British Museum team in ascribing a definite Iron Age date to the torc is undermined by significant flaws and/or omissions in their research. In addition, even if one accepts an Iron Age date for this artefact, the absence of acknowledgement by Adams et al that a suspected forger and planter of archaeological artefacts (Machling & Frieman 2024) was depositing material within yards of the Pulborough torc findspot (Machling et al 2023, 29) raises further questions which need to be addressed before a secure in situ Iron Age provenance can be ascribed to the torc.

This paper will highlight areas where we feel further research still needs to be undertaken and will correct the record regarding various issues raised by Adams et al. However, as we said in our 2023 paper, ‘unless further work identifies a ‘smoking gun’ of evidence, it is likely we will never know for sure’ (Machling et al 2023, 30) whether the torc is an in situ Iron Age find, a planted Iron Age find or a forgery.
Entropy of Thermally Excited Black Rings
Creators: name: Larsen, Finn
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A string theory description of near extremal black rings is proposed. The entropy is computed and the thermodynamic properties are derived for a large family of black rings that have not yet been constructed in supergravity. It is also argued that the most general black ring in N=8 supergravity has 21 parameters up to duality.
description: 17 pages; v2: minor edits and refs added
Christian Strahm, Die Gliederung der schnurkeramischen Kultur in der Schweiz
Creators: name: Gallay, Gretel
Publisher: name: Bonner Jahrbücher
Year: 2021

description: Rezension zu: Christian Strahm, Die Gliederung der schnurkeramischen Kultur in der Schweiz. Acta Bernensia Bd. VI. Bern 1971. 183 Seiten, 40 Textabbildungen, 40 Tafeln und 4 Karten
description: Bonner Jahrbücher, Bd. 172.1972: Bonner Jahrbücher
Vacuum decay and quadratic gravity: the massive case
Creators: name: Vicentini, Silvia
name: Rinaldi, Massimiliano
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: False vacuum decay in field theory may be formulated as a boundary value problem in Euclidean space. In a previous work, we studied its solution in single scalar field theories with quadratic gravity and used it to find obstructions to vacuum decay. For simplicity, we focused on massless scalar fields and false vacua with a flat geometry. In this paper, we generalize those findings to massive scalar fields with the same gravitational interactions, namely an Einstein-Hilbert term, a quadratic Ricci scalar, and a non-minimal coupling. We find that the scalar field reaches its asymptotic value faster than in the massless case, in principle allowing for a wider range of theories that may accommodate vacuum decay. Nonetheless, this hardly affects the viability of the bounce in the scenarios here considered. We also briefly consider other physically interesting theories by including higher-order kinetic terms and changing the number of spacetime dimensions.
description: calculation details added, comments added, to appear in GERG; 31 pages
Fernau, Friedrich-Wilhelm: Zwischen Konstantinopel und Moskau
Creators: name: Basdekis, Athanasios
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 27 Nr. 3 (1978): Ökumenische Rundschau, Band 27, Heft 3
Supply and Demand Interactions in the New South Wales Prime Lamb Market
Creators: name: Vere, David T.
name: Griffith, Garry R.
name: Vere, David T.
name: Griffith, Garry R.
Publisher: name: Unknown
Year: 1988
Subjects: Demand and Price Analysis

description: Prime lamb has not received the same level of economic research as Australia's other major livestock markets and knowledge of the lamb market's operations remains relatively limited. This market has experienced increasing problems including highly variable saleyard prices, strong retail competition and calls for market reform. To date, there has been no quantitative mechanism for assessing the potential impacts of these issues on the state or national lamb markets. This paper reports the development of a quarterly econometric model of the New South Wales prime lamb market. The model considers prime lamb as a separate market entity and places emphasis on the demographic influences on supply response. The estimated model is validated under historical dynamic simulation which generates simultaneous equilibrium solutions for twelve endogenous variables. The model's ability to respond to exogenous shocks is established under impact analysis and some proposed uses for the model are indicated.
Ernst Sprockhoff (♱) , Atlas der Megalithgräber Deutschlands. Teil 2
Creators: name: Bosinski, Gerhard
Publisher: name: Bonner Jahrbücher
Year: 2021

description: Rezension zu: Ernst Sprockhoff (♱) , Atlas der Megalithgräber Deutschlands. Teil 2: Mecklenburg—Brandenburg—Pommern. Text- und Atlasband. (Röm.-Germ. Kommission des Deutschen Arch. Instituts zu Frankfurt a. M.) Bonn 1967. 112 Seiten, 19 Abbildungen, 29 Beilagen, 99 Tafeln, 144 Atlasblätter
description: Bonner Jahrbücher, Bd. 172.1972: Bonner Jahrbücher
Karl J. Narr, Studien zur Älteren und Mittleren Steinzeit der Niederen Lande
Creators: name: Bosinski, Gerhard
Publisher: name: Bonner Jahrbücher
Year: 2021

description: Rezension zu: Karl J. Narr, Studien zur Älteren und Mittleren Steinzeit der Niederen Lande. Antiquitas Reihe 2, Band 7. Bonn 1968. 305 Seiten, 42 Tafeln, 11 Karten
description: Bonner Jahrbücher, Bd. 172.1972: Bonner Jahrbücher
The Chandra view of the 3C/FRI sample of low luminosity radio-galaxies
Creators: name: Balmaverde, B.
name: Capetti, A.
name: Grandi, P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present results from Chandra observations of the 3C/FRI sample of low luminosity radio-galaxies. We detected a power-law nuclear component in 12 objects out of the 18 with available data. In 4 galaxies we detected nuclear X-ray absorption at a level of about N_H= (0.2-6)e22 cm-2. X-ray absorbed sources are associated with the presence of highly inclined dusty disks (or dust filaments projected onto the nuclei) seen in the HST images. This suggests the existence of a flattened X-ray absorber, but of much lower optical depth than in classical obscuring tori. We thus have an un-obstructed view toward most FR~I nuclei while absorption plays only a marginal role in the remaining objects. Three pieces of evidence support an interpretation for a jet origin for the X-ray cores: i) the presence of strong correlations between the nuclear luminosities in the radio, optical and X-ray bands, extending over 4 orders of magnitude and with a much smaller dispersion (about 0.3 dex) when compared to similar trends found for other classes of AGNs, pointing to a common origin for the emission in the three bands; ii) the close similarity of the broad-band spectral indices with the sub-class of BL Lac objects sharing the same range of extended radio-luminosity, in accord with the FRI/BL Lacs unified model; iii) the presence of a common luminosity evolution of spectral indices in both FRI and BL Lacs. The low luminosities of the X-ray nuclei, regardless of their origin, strengthens the interpretation of low efficiency accretion in low luminosity radio-galaxies.
description: Accepted in A&A
Home care nurses’ perceptions of their nursing practice in today’s health care delivery system
Creators: name: Keyes, Nancy Joanne
Publisher: name: University of British Columbia
Year: 2009

description: Major health care changes have arisen recently that have affected the delivery of health care by community home care nurses. The reason for this research study was to explore and describe the experiences of home care nurses in order to gain an understanding of home care nursing practice from the perspectives of home care nurses in the current restructured health care system, and to identify the needs or concerns of these nurses with regard to their nursing practice. Phenomenology as defined by Colaizzi (1978) was the research method that was used to obtain and determine the perspectives of the participants in this study. Phenomenology is the study of every day life as it is actually lived and experienced (Ornery, 1983). Nine home care nurses who worked in a large urban health department and who were interested and could clearly and accurately articulate their perceptions and experiences of home care nursing practice participated in this research investigation. Data collection involved two informal, minimally structured indepth interviews that were limited to one hour in length, audiotape recorded, and transcribed verbatim. Data analysis and data collection occurred concurrently so that areas for clarification and exploration were discerned, recurrent themes and theme clusters were identified, and data saturation was ascertained. A third interview took place with a focus group of six participants in order to present and to validate the research findings as being representative of the participants' experiences and perceptions. Major theme categories emerged from the analysis of the interviews. Three primary categories and subsequent subcategories evolved from the participants' data. The first category identified the nature of home care practice and three subcategories, the context of home care nursing practice, the attitudes towards home care nursing practice, and the context of the client. The second category identified the prerequisites for home care nursing and two subcategories, the knowledge and skills requirements and the strategies necessary for home care nursing practice. The third category identified the organizational issues in home care nursing and two subcategories, the professional issues relevant to home care nursing practice and recommendations for home care nursing practice. These study findings had implications for home care nursing practice, administration, health policy, education, and research.
Imperfect Substitutes for Perfect Complements: Solving the Anticommons Problem
Creators: name: Alvisi, Matteo
name: Carbonara, Emanuela
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2010
Subjects: SECS-P/01 Economia politica

description: An integrated monopoly, where all complements forming a composite good are offered by a single firm, is typically welfare superior to a complementary monopoly. This is the "tragedy of the anticommons". We consider the possibility of competition in the market for each complement. We present a model with two perfect complements and introduce n imperfect substitutes for one and then for both complements. We prove that, if one complementary good is produced by a monopolist, and if competition for the other complement does not vary the average quality in the market, then an integrated monopoly is still superior. In such case, favoring competition in some sectors, leaving monopolies in others would be detrimental for
consumers and producers alike. Competition may be preferred if and only if the substitutes of the complementary good differ in their quality, so that as their number increases, average quality and/or quality variance increases. Results change when competition is introduced in each sector. In this case, if goods are close substitutes, we find that competition may be welfare superior for a relatively small number of competing firms in each sector, even with no quality differentiation.
Twelve sublattice ordered phase in the J1-J2 model on the kagome lattice
Creators: name: Domenge, Jean-Christophe
name: Sindzingre, Philippe
name: Lhuillier, Claire
name: Pierre, Laurent
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Motivated by recent experiments on an S=1/2 antiferromagnet on the kagome lattice, we investigate the Heisenberg J1-J2 model with ferromagnetic J1 and antiferromagnetic J2. Classically the ground state displays Neel long range order with 12 non-coplanar sublattices. The order parameter has the symmetry of a cuboctahedron so that it fully breaks SO(3) as well as the spin-flip symmetry, and we expect from the latter a Z2 symmetry breaking pattern. As might be expected from the Mermin-Wagner theorem in two dimensions, the SO(3) symmetry is restored by thermal fluctuations while the Z2 symmetry breaking persists up to a finite temperature. A complete study of S=1/2 exact spectra reveals that the classical order subsists for quantum spins in a finite range of parameters. First order spin wave calculations give the range of existence of this phase and the renormalisations at T=0 of the order parameters associated to both symmetry breakings. This phase is destroyed by quantum fluctuations for a small but finite J2/|J1|\simeq3 consistently with exact spectra studies which indicate a gapped phase.
description: Accepted for publication in Phys. Rev. B (2005)
Josef Reitinger, Oberösterreich in ur- und frühgeschichtlicher Zeit
Creators: name: Moser, E. K.
Publisher: name: Bonner Jahrbücher
Year: 2021

description: Rezension zu: Josef Reitinger, Oberösterreich in ur- und frühgeschichtlicher Zeit, Oberösterreichischer Landesverlag, Linz 1969. 433 Seiten und 342 Abbildungen im Text, davon 7 Farbbilder
description: Bonner Jahrbücher, Bd. 172.1972: Bonner Jahrbücher
Adding machine learning within Hamiltonians: Renormalization group transformations, symmetry breaking and restoration
Creators: name: Bachtis, Dimitrios
name: Aarts, Gert
name: Lucini, Biagio
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Machine Learning (cs.LG)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We present a physical interpretation of machine learning functions, opening up the possibility to control properties of statistical systems via the inclusion of these functions in Hamiltonians. In particular, we include the predictive function of a neural network, designed for phase classification, as a conjugate variable coupled to an external field within the Hamiltonian of a system. Results in the two-dimensional Ising model evidence that the field can induce an order-disorder phase transition by breaking or restoring the symmetry, in contrast with the field of the conventional order parameter which causes explicit symmetry breaking. The critical behavior is then studied by proposing a Hamiltonian-agnostic reweighting approach and forming a renormalization group mapping on quantities derived from the neural network. Accurate estimates of the critical point and of the critical exponents related to the operators that govern the divergence of the correlation length are provided. We conclude by discussing how the method provides an essential step toward bridging machine learning and physics.
Reller, Horst: Handbuch religiöse Gemeinschaften
Creators: name: Szobries, Heinz
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 27 Nr. 3 (1978): Ökumenische Rundschau, Band 27, Heft 3
Nuclear charge-exchange excitations based on relativistic density-dependent point-coupling model
Creators: name: Vale, D.
name: Niu, Y. F.
name: Paar, N.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Spin-isospin transitions in nuclei away from the valley of stability are essential for the description of astrophysically relevant weak interaction processes. While they remain mainly beyond the reach of experiment, theoretical modeling provides important insight into their properties. In order to describe the spin-isospin response,vcthe proton-neutron relativistic quasiparticle random phase approximation (PN-RQRPA) is formulated using the relativistic density-dependent point coupling interaction, and separable pairing interaction in both the $T=1$ and $T=0$ pairing channels. By implementing recently established DD-PCX interaction with improved isovector properties relevant for the description of nuclei with neutron-to-proton number asymmetry, the isobaric analog resonances (IAR) and Gamow-Teller resonances (GTR) have been investigated. In contrast to other models that usually underestimate the IAR excitation energies in Sn isotope chain, the present model accurately reproduces the experimental data, while the GTR properties depend on the isoscalar pairing interaction strength. This framework provides not only an improved description of the spin-isospin response in nuclei, but it also allows future large scale calculations of charge-exchange excitations and weak interaction processes in stellar environment.
description: 40 pages, 6 figures, revised version
The last fifteen years of stagnation in Italy: A Business Cycle Accounting Perspective
Creators: name: Orsi, Renzo
name: Turino, Francesco
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2010
Subjects: SECS-P/05 Econometria

description: In this paper, we investigate possible sources of declining economic growth performance in Italy starting around the middle of the ’90s. A long-run data analysis suggests that the poor performance of the Italian economy cannot be ascribed to an unfortunate business cycle contingency. The rest of the euro area countries have shown better performance, and the macroeconomic data show that the Italian economy has not grown as rapidly as these other European economies. We investigate the sources of economic fluctuations in Italy by applying the Business Cycle Accounting procedure introduced by Chari, Kehoe and McGrattan (2007). We analyze the relative importance of efficiency, labor, investment and government wedges for business cycles in Italy over the 1982-2008 period. We find that different wedges have played different roles during the period, but the efficiency wedge is revealed to be the main factor responsible for the stagnation phase beginning around 1995. Our findings also show that the improvement in labor market distortions that occurred in Italy during the ’90s provided an alleviating effect, preventing an even stronger slowdown in per capita output growth.
Changing Variability in Cereal Production in Australia
Creators: name: Anderson, Jock R.
name: Dillon, John L.
name: Hazell, Peter B.R.
name: Cowie, A.J.
name: Wan, G.H.
name: Anderson, Jock R.
name: Dillon, John L.
name: Hazell, Peter B.R.
name: Cowie, A.J.
name: Wan, G.H.
Publisher: name: Unknown
Year: 1988
Subjects: Crop Production/Industries

description: As part of a review of changing patterns of variability in cereal production around the world, the situation in Australia is examined both by major cereal crops and by State in which they are grown. The Australian results are generally consistent with those found in parts of both the industrial and developing world. There has been a tendency for production and especially yields to become both somewhat more variable as assessed by the dimension-free measure, the coefficient of variation, and more covariate between producing regions. The two post-World War II sub-periods examined are dominated, respectively, by tall (traditional) and short (modern) cultivars suggesting that there may be a causal link between cultivar used and relative yield variability.
Cephalogram Synthesis and Landmark Detection in Dental Cone-Beam CT Systems
Creators: name: Huang, Yixing
name: Fan, Fuxin
name: Syben, Christopher
name: Roser, Philipp
name: Mill, Leonid
name: Maier, Andreas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Due to the lack of standardized 3D cephalometric analytic methodology, 2D cephalograms synthesized from 3D cone-beam computed tomography (CBCT) volumes are widely used for cephalometric analysis in dental CBCT systems. However, compared with conventional X-ray film based cephalograms, such synthetic cephalograms lack image contrast and resolution. In addition, the radiation dose during the scan for 3D reconstruction causes potential health risks. In this work, we propose a sigmoid-based intensity transform that uses the nonlinear optical property of X-ray films to increase image contrast of synthetic cephalograms. To improve image resolution, super resolution deep learning techniques are investigated. For low dose purpose, the pixel-to-pixel generative adversarial network (pix2pixGAN) is proposed for 2D cephalogram synthesis directly from two CBCT projections. For landmark detection in the synthetic cephalograms, an efficient automatic landmark detection method using the combination of LeNet-5 and ResNet50 is proposed. Our experiments demonstrate the efficacy of pix2pixGAN in 2D cephalogram synthesis, achieving an average peak signal-to-noise ratio (PSNR) value of 33.8 with reference to the cephalograms synthesized from 3D CBCT volumes. Pix2pixGAN also achieves the best performance in super resolution, achieving an average PSNR value of 32.5 without the introduction of checkerboard or jagging artifacts. Our proposed automatic landmark detection method achieves 86.7% successful detection rate in the 2 mm clinical acceptable range on the ISBI Test1 data, which is comparable to the state-of-the-art methods. The method trained on conventional cephalograms can be directly applied to landmark detection in the synthetic cephalograms, achieving 93.0% and 80.7% successful detection rate in 4 mm precision range for synthetic cephalograms from 3D volumes and 2D projections respectively.
Posture Recognition in Sign Language Using Neural Network
Creators: name: Sarika Shendge, Nikita Wayadande, Sapna Gupta, Sakshi Shinde, T.G.Thite
Publisher: name: Zenodo
Year: 2024

description: Posture recognition in sign language using neural networks is a significant application of artificial intelligence aimed at facilitating communication between the deaf and hearing communities. This research focuses on the development of a computer vision system for the recognition and interpretation of sign language postures. The process involves collecting and preprocessing a dataset of sign language gestures, designing a neural network architecture, training and validating the model, and ultimately deploying it for real-time recognition.The neural network architecture leverages convolutional neural networks (CNNs) for image-based recognition and may include recurrent layers for video-based analysis. Training and fine-tuning the model with appropriate hyper parameters and evaluation metrics ensure robust performance. The outcome is a tool that can recognize and interpret hands hapes, movements, and other critical aspects of sign language gestures, contributing to enhanced accessibility and communication for the deafand hard of hearing individuals. This research acknowledges the importance of cultural and linguistic sensitivity, and it emphasizes the ongoing nature of development, encouraging continuous improvement and feedback from the sign language community. By bridging communication gaps, this technology serves asa valuable contribution to inclusivity and accessibility.
Bounded Risk-Sensitive Markov Games: Forward Policy Design and Inverse Reward Learning with Iterative Reasoning and Cumulative Prospect Theory
Creators: name: Tian, Ran
name: Sun, Liting
name: Tomizuka, Masayoshi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Classical game-theoretic approaches for multi-agent systems in both the forward policy design problem and the inverse reward learning problem often make strong rationality assumptions: agents perfectly maximize expected utilities under uncertainties. Such assumptions, however, substantially mismatch with observed humans' behaviors such as satisficing with sub-optimal, risk-seeking, and loss-aversion decisions. In this paper, we investigate the problem of bounded risk-sensitive Markov Game (BRSMG) and its inverse reward learning problem for modeling human realistic behaviors and learning human behavioral models. Drawing on iterative reasoning models and cumulative prospect theory, we embrace that humans have bounded intelligence and maximize risk-sensitive utilities in BRSMGs. Convergence analysis for both the forward policy design and the inverse reward learning problems are established under the BRSMG framework. We validate the proposed forward policy design and inverse reward learning algorithms in a navigation scenario. The results show that the behaviors of agents demonstrate both risk-averse and risk-seeking characteristics. Moreover, in the inverse reward learning task, the proposed bounded risk-sensitive inverse learning algorithm outperforms a baseline risk-neutral inverse learning algorithm by effectively recovering not only more accurate reward values but also the intelligence levels and the risk-measure parameters given demonstrations of agents' interactive behaviors.
description: Accepted by 2021 AAAI Conference on Artificial Intelligence
Neue Ausgrabungen und Forschungen in Niedersachsen
Creators: name: Joachim, Hans-Eckart
Publisher: name: Bonner Jahrbücher
Year: 2021

description: Rezension zu: Neue Ausgrabungen und Forschungen in Niedersachsen, Bd. 6. Hrsg. von der Archäologischen Komm. f. Niedersachsen. 271 Seiten, 8 Tafeln, zahlreiche Abbildungen und Pläne
description: Bonner Jahrbücher, Bd. 172.1972: Bonner Jahrbücher
AO Assisted Near-IR Spectroscopy of SVS 13 and its Jet
Creators: name: Davis, C. J.
name: Nisini, B.
name: Takami, M.
name: Pyo, T. -S.
name: Smith, M. D.
name: Whelan, E.
name: Ray, T. P.
name: Chrysostomou, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present long-slit H- and K-band spectroscopy of the low-mass outflow source SVS 13, obtained with the adaptive-optics assisted imager-spectrometer NACO on the VLT. With a spatial resolution of < 0.25 arcsec and a pixel scale of 0.027 arcsec we precisely establish the relative offsets of H2, [FeII], CO, HI and NaI components from the source continuum. The H2 and [FeII] peaks are clearly associated with the jet, while the CO, HI and NaI peaks are spatially unresolved and coincident with the source, as is expected for emission associated with accretion processes. The H2 profile along the slit is resolved into multiple components, which increase in size though decrease in intensity with distance from the source. This trend might be consistent with thermal expansion of packets of gas ejected during periods of increased accretion activity. Indeed, for the brightest component nearest the source, proper motion measurements indicate a tangential velocity of 0.028 arcsec/year. It therefore seems unlikely that this emission peak is associated with a stationary zone of warm gas at the base of the jet. However, the same can not be said for the [FeII] peak, for which we see no evidence for motion downwind, even though radial velocity measurements indicate that the emission is associated with higher jet velocities. We postulate that the [FeII] could be associated with a collimation shock at the base of the jet.
description: Astrophys. J accepted, 14 pages, 5 figures. See also http://www.jach.hawaii.edu/~cdavis
The strategic effect of bundling: a new perspective
Creators: name: Mantovani, Andrea
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2010
Subjects: SECS-P/01 Economia politica

description: This paper investigates the strategic effect of bundling when a multi-product firm producing two complements faces competition in both markets. I consider a demand structure where both Cournot and Bertrand competition can be evaluated. Bundling is completely ineffective when firms compete in quantities. On the contrary, under Bertrand competition, selling the two goods in a package is profitable when the goods produced by the rivals are perceived as close substitutes to those produced by the multi-product firm. Bundling drives prices up, and not only consumer surplus, but also social welfare shrinks, thus calling for the intervention of the antitrust agency.
The Multiplier-Effects of Non-Wasteful Government Expenditure
Creators: name: Marattin, Luigi
name: Marzo, Massimiliano
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2010
Subjects: SECS-P/01 Economia politica

description: Macroeconomic literature has traditionally regarded public expenditure as yielding no utility per se to any agent in the economy. In line with a few previous contributions (Linneman and Schabert 2004, Bouakez and Rebei 2007) we build a New Keynesian DSGE model with real and nominal rigidities and distortionary fiscal policy rules, calibrated on the Euro-area (1990:Q1-2008:Q4), where part of public spending is allowed to
either Edgeworth complement or substitute private consumption by affecting its marginal utility. We show that the the interaction between the share of usefulness of public spending and the specification of fiscal and monetary policy rules is able to deliver private consumption multipliers which are in line with the empirical findings for the Euro-Area.
Ulrich Fischer, Aus Frankfurts Vorgeschichte
Creators: name: Mandera, H.-E.
Publisher: name: Bonner Jahrbücher
Year: 2021

description: Rezension zu: Ulrich Fischer, Aus Frankfurts Vorgeschichte. Frankfurt/Main 1971. 271 Seiten, 48 Abbildungen, 28 Tafeln und 2 farbige Vorsatzblatter
description: Bonner Jahrbücher, Bd. 172.1972: Bonner Jahrbücher
Spectral zeta-Functions and zeta-Regularized Functional Determinants for Regular Sturm-Liouville Operators
Creators: name: Fucci, Guglielmo
name: Gesztesy, Fritz
name: Kirsten, Klaus
name: Stanfill, Jonathan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Spectral Theory (math.SP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: Primary: 47A10, 47B10, 47G10. Secondary: 34B27, 34L40

description: The principal aim in this paper is to employ a recently developed unified approach to the computation of traces of resolvents and $ζ$-functions to efficiently compute values of spectral $ζ$-functions at positive integers associated to regular (three-coefficient) self-adjoint Sturm--Liouville differential expressions $τ$. Depending on the underlying boundary conditions, we express the $ζ$-function values in terms of a fundamental system of solutions of $τy = z y$ and their expansions about the spectral point $z=0$. Furthermore, we give the full analytic continuation of the $ζ$-function through a Liouville transformation and provide an explicit expression for the $ζ$-regularized functional determinant in terms of a particular set of this fundamental system of solutions. An array of examples illustrating the applicability of these methods is provided, including regular Schrödinger operators with zero, piecewise constant, and a linear potential on a compact interval.
description: 44 pages
Vor- und frühgeschichtliche Archäologie in Bayern
Creators: name: Bosl, K.
name: Dannheimer, Hermann
name: Freund, G.
name: Gebhard, T. Gebhard
name: Kellner, Hans-Jörg
name: Kossack, Georg
name: Krämer, W.
name: Milojčić, Vladimir
name: Penninger, E.
name: Torbrügge, W.
name: Uenze, H.-P.
name: Ulbert, G.
name: Werner, Joachim
Publisher: name: Bonner Jahrbücher
Year: 2021

description: Bonner Jahrbücher, Bd. 172.1972: Bonner Jahrbücher
The Duality Cascade
Creators: name: Strassler, Matthew J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The duality cascade, and its dual description as string theory on the warped deformed conifold, brings together several sophisticated topics, some of which are not widely known. These lectures, which contain a number of previously unpublished results, and are intended for experts as well as students, seek to explain the physics of duality cascades. Seiberg duality is carefully introduced, with detailed attention to the physical implications of duality away from the far infrared. The conifold is briefly introduced and strings on the conifold (the Klebanov-Witten model) are discussed. Next, fractional branes are introduced. The duality cascade is then constructed in field theory and in its dual supergravity description. Among the newly published results: it is shown why supergravity sees the cascade as smooth; how the two holomorphic couplings (dilaton and integrated two-form in supergravity) are related to the three physical couplings in the gauge theory; that there are actually twice as many approximate fixed points in the cascade as might be naively expected. These notes are based on lectures given at TASI 2003 and at the 2003 PIMS Summer School on Strings, Gravity & Cosmology.
description: 92 pages, 42 figures; Lectures delivered at TASI 2003 and PIMS 2003
Lo ‘shock’ Lehman Brothers: una tempesta dentro la tempesta? L’esperienza degli ETF LYXOR su Euro MTS
Creators: name: Marzo, Massimiliano
name: Zagaglia, Paolo
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2010
Subjects: SECS-P/01 Economia politica

description: Questo studio considera l’evoluzione della relazione tra ETF su titoli di stato ed i relativi indici ‘benchmark’ durante il periodo di turbolenza dei mercati iniziato nel 2007. La nostra analisi si concentra sul cambiamento della trasmissione di volatilità in seguito al fallimento di Lehman Brothers. Usiamo dati sui prezzi giornalieri di tre ETF LYXOR su Euro MTS e dei rispettivi indici per stimare tre tipi di modelli di movimenti congiunti o ’contagio’ tra i mercati: a) modelli BEKK bivariati basati su Engle e Kroner (1995); b) il modello CAViAR di Engle e Manganelli (2004) che permette di applicare il test di Cappiello, Gerard e Manganelli (2005) per il cambiamento nei movimenti congiunti; c) modelli bivariati BEKK ‘strutturali’ riadattati da Rigobon (2003). I nostri risultati suggeriscono che l’evento Lehman non ha avuto implicazioni sulla trasmissione di volatilità tra gli ETF ed i rispettivi indici. Tuttavia l’attitudine alle reazioni estreme degli investori in entrambi questi segmenti è aumentata.
Phase Transitions from the Fifth Dimension
Creators: name: Agashe, Kaustubh
name: Du, Peizhi
name: Ekhterachian, Majid
name: Kumar, Soubhik
name: Sundrum, Raman
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the cosmological transition of 5D warped compactifications, from the high-temperature black-brane phase to the low-temperature Randall-Sundrum I phase. The transition proceeds via percolation of bubbles of IR-brane nucleating from the black-brane horizon. The violent bubble dynamics can be a powerful source of observable stochastic gravitational waves. While bubble nucleation is non-perturbative in 5D gravity, it is amenable to semiclassical treatment in terms of a "bounce" configuration interpolating between the two phases. We demonstrate how such a bounce configuration can be smooth enough to maintain 5D effective field theory control, and how a simple ansatz for it places a rigorous lower-bound on the transition rate in the thin-wall regime, and gives plausible estimates more generally. When applied to the Hierarchy Problem, the minimal Goldberger-Wise stabilization of the warped throat leads to a slow transition with significant supercooling. We demonstrate that a simple generalization of the Goldberger-Wise potential modifies the IR-brane dynamics so that the transition completes more promptly. Supercooling determines the dilution of any (dark) matter abundances generated before the transition, potentially at odds with data, while the prompter transition resolves such tensions. We discuss the impact of the different possibilities on the strength of the gravitational wave signals. Via AdS/CFT duality the warped transition gives a theoretically tractable holographic description of the 4D Composite Higgs (de)confinement transition. Our generalization of the Goldberger-Wise mechanism is dual to, and concretely models, our earlier proposal in which the composite dynamics is governed by separate UV and IR RG fixed points. The smooth 5D bounce configuration we introduce complements the 4D dilaton/radion dominance derivation presented in our earlier work.
description: journal version
ЧИСЛЕННАЯ РЕАЛИЗАЦИЯ ГИДРАВЛИЧЕСКОЙ МОДЕЛИ ВЛАГОПЕРЕНОСА В ГИДРОМОРФНЫХ СРЕДАХ
Creators: name: Атажонова, Ш.
name: Мустафаева, Р.
name: Шукурова, Г.
name: Ортиқов, И.
Publisher: name: Zenodo
Year: 2024

description: Важнейшей задачей геогидродинамических прогнозов в связи с мелиорацией земель является прогнозирование изменения режима подземных вод и управления режимом влагопереноса в верхних слоях зоны аэрации. В связи с этим, для разработки математических моделей влагопереноса необходимо учесть физико-механические свойства почво-грунта, гидрофизические характеристики пород, условия поступления влаги в почво-грунт и т.д. Известно, что почва представляет собой дисперсное тело, т.е. она состоит из большого числа частичек разного размера, по большей части мелких и весьма мелких.
Using Quantum Mechanics to Cope with Liars
Creators: name: Mancini, Stefano
name: Maccone, Lorenzo
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose the use of a quantum algorithm to deal with the problem of searching with errors in the framework of two-person games. Specifically, we present a solution to the Ulam's problem that polynomially reduces its query complexity and makes it independent from the dimension of the search space.
description: 4 pages, RevTeX file, revised version
Producer Price Equalization
Creators: name: Alston, Julian M.
name: Freebairn, John W.
name: Alston, Julian M.
name: Freebairn, John W.
Publisher: name: Unknown
Year: 1988
Subjects: Agribusiness
Consumer/Household Economics

description: Most previous studies of home consumption pricing and producer price equalisation schemes have concentrated on static economic surplus effects under an assumption of a perfectly elastic export demand. This paper compares the effects of different types of producer price equalisation schemes with free trade in the wheat, milk and egg industries allowing for a downward sloping export demand. Average values and variances of prices, quantities, revenues, and economic surplus measures are estimated for each policy in a simulation model allowing a range of values for elasticities of supply and demand, market shares, and variability of supply and export demand. The stabilisation effects of equalisation schemes are evaluated using these estimates.