cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Modular Hamiltonians in flat holography and (W)AdS/WCFT
Creators: name: Apolo, Luis
name: Jiang, Hongliang
name: Song, Wei
name: Zhong, Yuan
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study several aspects of holographic entanglement in two models known as flat$_3$/BMSFT and (W)AdS$_3$/WCFT. These are two examples of holography beyond AdS/CFT where the the boundary field theories are not Lorentz invariant but still feature an infinite set of local symmetries. In the first example, BMS-invariant field theories (BMSFTs) are conjectured to provide a holographic description of quantum gravity in asymptotically flat three-dimensional spacetimes; while in the second example, warped conformal field theories (WCFTs) are proposed to describe quantum gravity in warped AdS$_3$ or AdS$_3$ backgrounds with Dirichlet-Neumann boundary conditions. In particular, we derive the modular Hamiltonian for single intervals in both BMSFTs and WCFTs and find the holographic duals in the bulk using the covariant formulation of gravitational charges. We also extend the first law of entanglement entropy to these models of non-AdS holography and discuss the bound on "modular chaos" introduced recently in the context of the AdS/CFT correspondence.
description: 46 pages, 3 figures; v2: corrected typos, matches published version
Syntheses and utilizations of pyrroline-nitroxide- and tetrahydropyridine-nitroxide-based α-ketophosphonates, β-ketophosphonates, and a bisphosphonate
Creators: name: Isbera, Mostafa
name: Bognár, Balázs
name: Sár, Cecília
name: Jekő, József
name: Kálai, Tamás
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Five- and six-membered cyclic nitroxides containing α-ketophosphonates were obtained from the corresponding paramagnetic acyl chlorides via the Arbuzov reaction, while those containing β-ketophosphonates were obtained from the appropriate 1-alkynylphosphonates via PdCl2-catalyzed hydration. These new paramagnetic phosphorus compounds proved to be useful reagents in C–C and C=C bond-forming reactions and in functional group transformation reactions, namely, reduction, phospha-Brook rearrangement, and Regitz diazo transfer reactions. The synthesis of a paramagnetic geminal bisphosphonate was also reported.
VLTI/AMBER and VLTI/MIDI spectro-interferometric observations of the B[e] supergiant CPD-57 2874
Creators: name: de Souza, A. Domiciano
name: Driebe, T.
name: Chesneau, O.
name: Hofmann, K. -H.
name: Kraus, S.
name: Miroshnichenko, A. S.
name: Ohnaka, K.
name: Petrov, R. G.
name: Preibisch, Th.
name: Stee, P.
name: Weigelt, G.
name: Lisi, F.
name: Malbet, F.
name: Richichi, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the first high spatial and spectral observations of the circumstellar envelope (CSE) of a B[e] supergiant (CPD$-57 2874$), performed with the Very Large Telescope Interferometer (VLTI). Spectra, visibilities, and closure phase, were obtained using the beam-combiner instruments AMBER (near-IR interferometry with three 8.3 m Unit Telescopes or UTs) and MIDI (mid-IR interferometry with two UTs). The interferometric observations of the CSE are well fitted by an elliptical Gaussian model with FWHM diameters varying linearly with wavelength. Typical diameters measured are $\simeq1.8\times3.4$ mas or $\simeq4.5\times8.5$ AU (adopting a distance of 2.5 kpc) at $2.2\micron$, and $\simeq12\times15$ mas or $\simeq30\times38$ AU at $12\micron$. The size of the region emitting the Br$γ$ flux is $\simeq2.8\times5.2$ mas or $\simeq7.0\times13.0$ AU. The major-axis position angle of the elongated CSE in the mid-IR ($\simeq144\degr$) agrees well with previous polarimetric data, hinting that the hot-dust emission originates in a disk-like structure. In addition to the interferometric observations we also present new optical ($UBVR_{c}I_{c}$) and near-IR ($JHKL$) broadband photometric observations of CPD$-57 2874$. Our spectro-interferometric VLTI observations and data analysis support the non-spherical CSE paradigm for B[e] supergiants.
description: Accepted by A&A
Profitability of Dairy Cattle Through Precision Livestock Farming Management Practices
Creators: name: Salim, Juma K.
name: Dillon, Carl R.
name: Saghaian, Sayed H.
name: McAllister, Jack
name: Amaral-Phillips, Donna M.
name: Salim, Juma K.
name: Dillon, Carl R.
name: Saghaian, Sayed H.
name: McAllister, Jack
name: Amaral-Phillips, Donna M.
Publisher: name: Unknown
Year: 2005
Subjects: Farm Management

description: The purpose of this study is to compare and contrast the profitability of different dairy management practices through precision livestock farming. Feed analysis and crop yields were simulated. Mathematical model was used for profit maximization. The results indicated that the proposed modification had a higher profit than the base plan.
Consumer Food Choices as a Reflection of Concerns about Nutritional Attributes
Creators: name: Hwang, Sojin
name: Florkowski, Wojciech J.
name: Lee, In-Kyu
name: Hwang, Sojin
name: Florkowski, Wojciech J.
name: Lee, In-Kyu
Publisher: name: Unknown
Year: 2005
Subjects: Consumer/Household Economics

description: Economic growth changed household food consumption patterns in the Republic of Korea. Consumer survey data were used to identify concerns about fat, saturated fat, sodium, sugar, calories and protein consumption. Results showed income, age, household size and the geographic location significantly influenced consumer concerns with regard to these nutritional attributes.
Self-gravitating Filament Formation from Shocked Flows: Velocity Gradients across Filaments
Creators: name: Chen, Che-Yu
name: Mundy, Lee G.
name: Ostriker, Eve C.
name: Storm, Shaye
name: Dhabal, Arnab
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In typical environments of star-forming clouds, converging supersonic turbulence generates shock-compressed regions, and can create strongly-magnetized sheet-like layers. Numerical MHD simulations show that within these post-shock layers, dense filaments and embedded self-gravitating cores form via gathering material along the magnetic field lines. As a result of the preferred-direction mass collection, a velocity gradient perpendicular to the filament major axis is a common feature seen in simulations. We show that this prediction is in good agreement with recent observations from the CARMA Large Area Star Formation Survey (CLASSy), from which we identified several filaments with prominent velocity gradients perpendicular to their major axes. Highlighting a filament from the northwest part of Serpens South, we provide both qualitative and quantitative comparisons between simulation results and observational data. In particular, we show that the dimensionless ratio $C_v \equiv {Δv_h}^2/(GM/L)$, where $Δv_h$ is half of the observed perpendicular velocity difference across a filament, and $M/L$ is the filament's mass per unit length, can distinguish between filaments formed purely due to turbulent compression and those formed due to gravity-induced accretion. We conclude that the perpendicular velocity gradient observed in the Serpens South northwest filament can be caused by gravity-induced anisotropic accretion of material from a flattened layer. Using synthetic observations of our simulated filaments, we also propose that a density-selection effect may explain observed subfilaments (one filament breaking into two components in velocity space) as reported in Dhabal et al. (2018).
description: 11 pages, 7 figures, accepted for publication in MNRAS
Additional file 6 of Genome-wide association analysis of canine T zone lymphoma identifies link to hypothyroidism and a shared association with mast-cell tumors
Creators: name: Labadie, Julia D.
name: Elvers, Ingegerd
name: Feigelson, Heather Spencer
name: Magzamen, Sheryl
name: Yoshimoto, Janna
name: Dossey, Jeremy
name: Burnett, Robert
name: Avery, Anne C.
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 6. GWA for combined TZL and MCT datasets. QQ-plot (left) and Manhattan plot (right). A) GWAS of combined TZL and MCT cases versus TZUS and TZL controls; B) GWAS of TZL cases versus combined TZUS, TZL controls, and MCT controls.
Constructing the Social Problem of Wrongful Convictions: A Qualitative Content Analysis of the Guy Paul Morin Inquiry
Creators: name: Sauve, Bradley
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2021
Subjects: Wrongful conviction
miscarriage of justice
social constructionism
social problems
public inquiry
Commission on Proceedings Involving Guy Paul Morin

description: In Canada, wrongful convictions arose as a social problem with the rise of the innocence movement throughout the 1990s (Zalman, 2020). Despite its rise as a social problem and the increasing attention it has received in the popular media, there has been a lack of research analyzing exactly how wrongful convictions are constructed. The purpose of this research is to analyze how the claimsmakers present at the Morin Inquiry constructed the wrongful conviction of Guy Paul Morin. The purpose of this analysis is to provide insight into the overall construction of wrongful convictions as a social problem through the examination of the claimsmaking taking place within a typifying example. To accomplish this, a qualitative content analysis of the Commission on the Proceedings Involving Guy Paul Morin, using a social constructionist lens, was conducted. Specifically, this thesis analyzed the contents of the Morin Inquiry using the theory of contextual constructionism as defined by Best (1987, 2013). The findings of this research reveal that: (1) the claimsmakers in the Morin Inquiry constructed Guy Paul Morin’s wrongful conviction as a preventable occurrence caused by a combination of individual wrongdoings and correctible systemic errors; (2) through the construction of blameless victims and blameworthy villains as well as the demonstration that wrongful convictions challenge the legitimacy of the criminal justice system, the claimsmakers were able to demonstrate that Morin’s wrongful conviction was worth addressing; and (3) through the adoption of inquiry recommendations, future wrongful convictions can be prevented, and the legitimacy of the criminal justice system can be restored. Finally, this thesis concludes by discussing implications, contributions and limitations of the findings before presenting ideas for future research.
Using the AIR Weather Index to Estimate the Contribution of Climate to Corn and Soybean Yields in the U.S.
Creators: name: Vergara, Oscar
name: Zuba, Gerhard
name: Doggett, Tim
name: Vergara, Oscar
name: Zuba, Gerhard
name: Doggett, Tim
Publisher: name: Unknown
Year: 2005
Subjects: Crop Production/Industries

description: Using historical production data at the county level and statistical analysis, we investigate climate contributions to corn and soybean yields between 1974-2003. Crop yield trends are decomposed into two components: the technology-derived trend and the trend resulting from climate variability. Implications for agricultural risk management and farm policy are discussed.
Procesamiento masivo al servicio del análisis de imagen en patología
Creators: name: Sánchez Morillo, Daniel
Publisher: name: Zenodo
Year: 2018

description: Conferencia impartida sobre "Procesamiento masivo al servicio del análisis de imagen en patología", en el marco del VII Curso de Patología Digital, celebrado en Cádiz en 2018, bajo los auspicios científicos del Club de Patología  Digital de la Sociedad Española de Anatomía Patológica (SEAP). El evento promovía la colaboración interdisciplinar con ingenieros, biólogos y otros investigadores biomédicos. En el evento, que incluía talleres prácticos divulgativos, se intercambiaron debilidades y fortalezas promover los beneficios y aplicaciones de trabajar en un ambiente apoyado por la inteligencia artificial.
On conformal Jordan cells of finite and infinite rank
Creators: name: Rasmussen, Jorgen
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This work concerns in part the construction of conformal Jordan cells of infinite rank and their reductions to conformal Jordan cells of finite rank. It is also discussed how a procedure similar to Lie algebra contractions may reduce a conformal Jordan cell of finite rank to one of lower rank. A conformal Jordan cell of rank one corresponds to a primary field. This offers a picture in which any finite conformal Jordan cell of a given conformal weight may be obtained from a universal covering cell of the same weight but infinite rank.
description: 9 pages, LaTeX, v2: typo corrected, comments added, version to be published
Economies of Size for Conventional Tillage and No-till Wheat Production
Creators: name: Epplin, Francis M.
name: Stock, Curtis J.
name: Kletke, Darrel D.
name: Peeper, Thomas F.
name: Epplin, Francis M.
name: Stock, Curtis J.
name: Kletke, Darrel D.
name: Peeper, Thomas F.
Publisher: name: Unknown
Year: 2005
Subjects: Crop Production/Industries

description: Production costs and economies of size for both conventional tillage and no-till wheat production were determined. The reduction in the price of glyphosate after the patent expired improved the relative economics of no-till for continuous monoculture winter wheat. Production costs differ across farm size and by production system.
Additional file 5 of Genome-wide association analysis of canine T zone lymphoma identifies link to hypothyroidism and a shared association with mast-cell tumors
Creators: name: Labadie, Julia D.
name: Elvers, Ingegerd
name: Feigelson, Heather Spencer
name: Magzamen, Sheryl
name: Yoshimoto, Janna
name: Dossey, Jeremy
name: Burnett, Robert
name: Avery, Anne C.
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 5. Multidimensional scaling plot for combined TZL and MCT datasets. Plot is colored by phenotype and dataset.
Robust photon transmission in nonlinear parity-time-symmetric cavities
Creators: name: Gong, Ling-Pu
name: Chen, Xing-Sen
name: Tan, Yin
name: Zhang, Rui
name: Zhang, Yu-Yu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We explore the photon transfer in the nonlinear parity-time-symmetry system of two coupled cavities, which contains nonlinear gain and loss dependent on the intracavity photons. Analytical solution to the steady state gives a saturated gain, which satisfy the parity-time symmetry automatically. The eigen-frequency self-adapts the nonlinear saturated gain to reach the maximum efficiency in the steady state. We find that the saturated gain in the weak coupling regime does not match the loss in the steady state, exhibiting an appearance of a spontaneous symmetry-breaking. The photon transmission efficiency in the parity-time-symmetric regime is robust against the variation of the coupling strength, which improves the results of the conventional methods by tuning the frequency or the coupling strength to maintain optimal efficiency. Our scheme provides an experimental platform for realizing the robust photon transfer in cavities with nonlinear parity-time symmetry.
description: 5 pages,3 figures
Quantum mechanical formulation of the Busch theorem
Creators: name: Floettmann, Klaus
name: Karlovets, Dmitry
Publisher: name: arXiv
Year: 2020
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Electron vortex beams offer unique opportunities for the study of chiral or magnetic structures in electron microscopes and of fundamental effects of quantum interference in particle physics. Immersing a cathode in a solenoid field presents a highly efficient and flexible method for the generation of vortex electron beams which is utilized at accelerators, but has not yet been realized in an electron microscope. The conditions for the generation of vortex beams with quantized orbital angular momentum from an immersed cathode in an electron microscope are discussed, and general possibilities of this technique for the production of vortex beams of other charged particles are pointed out.
On Term Structure Models of Commodity Futures Prices and the Kaldor-Working Hypothesis
Creators: name: Power, Gabriel J.
name: Turvey, Calum G.
name: Power, Gabriel J.
name: Turvey, Calum G.
Publisher: name: Unknown
Year: 2008
Subjects: Agricultural Finance

description: Both prices and the volatility of storable agricultural commodity futures contracts have been rising since 2005 and particularly since 2007. This paper aims to answer two principal questions: (i) How has the behavior of these futures prices over time and across maturities changed with the rise of biofuels and their demand-side pres- sure on corn and related crops?, and (ii) Is there now stronger or weaker evidence of the Kaldor-Working convenience yield-storage hypothesis, whereby futures price backwardation can be explained by the high value of remaining inventory stocks when these are near stockouts? The empirical application is to Chicago Board of Trade corn, wheat and soybeans futures. To make use of all available futures data rather than only the nearby, this paper adopts a recently developed affine term structure model approach and conducts estimation in state-space form using the Kalman filter. A novel aspect of the research is that it allows an arbitrary number N of state vari- ables, where more variables provide further precision and curvature but at a higher computational cost. It is found that a three-state variable model containing both ran- dom walk and mean reversion components provides the most parsimonious fit during 1988-2004, but that a simple one-state variable model is optimal for the period 2005- 2007. The main implication is that futures prices since 2005 behave much more like a \random walk" than before. Also, the model allows us to estimate the term struc- ture of volatility and it is found that distant maturity futures should be expected to be much more volatile than historically normal. Two practical but only tentative implications are: (a) hedgers should use significantly lower hedge ratios than before, and (b) for traders, the classic Black-Scholes option pricing solution should perform better now than it has historically. Lastly, the paper finds partial empirical support for the convenience yield relationship with relative inventory stocks, especially for soybeans and wheat.
Cost comparison of non-frozen and frozen forest road construction in changing climates
Creators: name: Kuloglu, Tevfik Z.
name: Anderson, Axel E.
name: Lieffers, Victor J.
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Molecular Biology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: In many northern forests, the preferred time of harvesting is when the ground is frozen. Logging activities on frozen ground reduce the cost of forest operations by allowing heavier loads on temporary roads and makes crossing wetlands feasible. Increased winter temperature and more frequent winter thaws decrease the period of frozen ground conditions. In order to adapt to shorter periods of frozen logging season, forest companies might have to access frozen harvesting sites in the non-frozen season. In this study, we examined the cost of temporary forest road construction in terms of switching logging activities from frozen to non-frozen conditions. The objectives were to estimate the costs of non-frozen temporary roads for four harvesting units with different difficulty of access. We also analyzed construction costs for both frozen and non-frozen access under possible different wetter and drier scenarios. The results show that the average cost of temporary road construction increased from $1,200 km−1 or $0.30 m−3 in frozen conditions to $5,962 km−1 or $2.14 m−3 in non-frozen conditions. Under the extreme wet scenarios, the cost of non-frozen roading ($ m−3) of the unit with the most difficult access was up to 14.6 times more than frozen road construction. If the soil dried faster than the base case scenario, cost increases of non-frozen road construction ($ km−1) were expected to be between 2.3 times and 8.6 times more than the frozen road construction cost, depending upon the difficulty of accessing the unit.
The Shape of the Optimal Hedge Ratio: Modeling Joint Spot-Futures Prices using an Empirical Copula-GARCH Model
Creators: name: Power, Gabriel J.
name: Vedenov, Dmitry V.
name: Power, Gabriel J.
name: Vedenov, Dmitry V.
Publisher: name: Unknown
Year: 2008
Subjects: Agricultural Finance

description: Commodity cash and futures prices have been rising steadily since 2006. As evidenced by the April 2008 Commodity Futures Trading Commission Agricultural Forum, there is much concern among traditional futures and options market participants that the usefulness of commodity derivatives has been compromised. When basis risk is particularly high, dynamic hedging methods may be helpful despite their complexity and higher transaction costs. To assess the potential benefits of dynamic hedging in volatile times, this paper proposes a novel, empirical copula-based method to estimate GARCH models and to compute time-varying hedge ratios. This approach allows a nonlinear, asymmetric dependence structure between cash and futures prices. The paper addresses four principal questions: (1) Does the empirical copula-GARCH method overcome traditional limitations of dynamic hedging methods? (2) How does the empirical copula- GARCH hedging approach perform, for storable agricultural commodities, compared with traditional GARCH and Minimum Variance (static) hedging methods? (3) Is dynamic hedging more or less effective in the post-2006 biofuels expansion time period? (4) How sensitive is the ranking of methods to the hedging effectiveness criterion used? Preliminary findings suggest that the empirical copula-GARCH approach leads to superior hedging effectiveness based on some, but not all, risk criteria.
Search for the elusive optical counterpart of PSR J0537-6910 with the HST Advanced Camera for Surveys
Creators: name: Mignani, R. P.
name: Pulone, L.
name: Iannicola, G.
name: Pavlov, G. G.
name: Townsley, L.
name: Kargaltsev, O. Y.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of deep, high-resolution, multi-band optical observations of the field of the young (~ 5,000 yrs) 16 ms X-ray pulsar PSR J0537$-$6910 performed with the Advanced Camera for Surveys (ACS) aboard the Hubble Space Telescope (HST). Although a few new potential counterparts have been detected within or close to the revised Chandra X-ray error circle (~1 arcsec) of the pulsar, only two of them (with magnitudes m_{814W} ~ 23.9 and m_{814W} ~ 24.2) show indications of a peculiar spectrum which could be related to optical emission from the pulsar. This might be true also for a third, fainter, candidate detected only in one filter (with magnitude m_{814W} ~ 26.7). If either of the two brighter candidates is indeed the actual counterpart, the optical output of PSR J0537-6910 would make it similar to young Crab-like pulsars. If not, it would mean that PSR J0537-6910 is significantly underluminous with respect to all pulsars detected in the optical
description: 7 pages, 5 figures, Astronomy & Astrophysics, in press
The lived experience of facing the end of life in an inpatient hospice environment
Creators: name: Pyper, Sheri Marie
Publisher: name: University of British Columbia
Year: 2009

description: This study used a phenomenological approach to explore the experience of facing the end of life in a hospice environment. Findings revealed that central elements of this experience include: (a) caring about relationships with others, (b) caring about knowing and being oneself, (c) a greater awareness of one's relationship to time, (d) needing to think and feel positive, and (e) caring about one's spiritual faith and experience. The results provide support for previous research and have both theoretical and practice implications. Future research could help to build on the small number of phenomenological studies that have looked at the experience of facing the end of life— especially in hospice environments.
City limits in the age of smartphones and urban scaling
Creators: name: Sotomayor-Gómez, Boris
name: Samaniego, Horacio
Publisher: name: arXiv
Year: 2020
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Computers and Society (cs.CY)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: K.4

description: Urban planning still lacks appropriate standards to define city boundaries across urban systems. This issue has historically been left to administrative criteria, which can vary significantly across countries and political systems, hindering a comparative analysis across urban systems. However, the wide use of Information and Communication Technologies (ICT) has now allowed the development of new quantitative approaches to unveil how social dynamics relates to urban infrastructure. In fact, ICT provide the potential to portray more accurate descriptions of the urban systems based on the empirical analysis of millions of traces left by urbanites across the city. In this work, we apply computational techniques over a large volume of mobile phone records to define urban boundaries, through the analysis of travel patterns and the trajectory of urban dwellers in conurbations with more than 100,000 inhabitants in Chile. We created and analyzed the network of interconnected places inferred from individual travel trajectories. We then ranked each place using a spectral centrality method. This allowed to identify places of higher concurrency and functional importance for each urban environment. Urban scaling analysis is finally used as a diagnostic tool that allowed to distinguish urban from non-urban spaces. The geographic assessment of our method shows a high congruence with the current and administrative definitions of urban agglomerations in Chile. Our results can potentially be considered as a functional definition of the urban boundary. They also provide a practical implementation of urban scaling and data-driven approaches on cities as complex systems using increasingly larger non-conventional datasets.
description: 13 pages, 7 figures
Le Mont Kemmel, une fortification celtique
Creators: name: Van Doorselaer, André
Publisher: name: Zenodo
Year: 1990
Subjects: Kemmelberg, hillfort, burial mound, golden bead, linchpin, Kemmelware

description: This article is part of a publication that appeared on the occasion of a touring exhibition "Les Celtes en France du Nord et en Belgique" (1990-1991). It is a brief synthesis of the results from the 1963-1980 excavations that took place on the Kemmelberg .
Overproduction of cosmic superstrings
Creators: name: Barnaby, Neil
name: Berndsen, Aaron
name: Cline, James M.
name: Stoica, Horace
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that the naive application of the Kibble mechanism seriously underestimates the initial density of cosmic superstrings that can be formed during the annihilation of D-branes in the early universe, as in models of brane-antibrane inflation. We study the formation of defects in effective field theories of the string theory tachyon both analytically, by solving the equation of motion of the tachyon field near the core of the defect, and numerically, by evolving the tachyon field on a lattice. We find that defects generically form with correlation lengths of order M_s^{-1} rather than H^{-1}. Hence, defects localized in extra dimensions may be formed at the end of inflation. This implies that brane-antibrane inflation models where inflation is driven by branes which wrap the compact manifold may have problems with overclosure by cosmological relics, such as domain walls and monopoles.
description: 31 pages, 16 figures, JHEP style; References added; Improved discussion of initial conditions
QARAQALPAQSTANDA MILLETLER ARALÍQ TATÍWLÍQTÍŃ BEKKEMLENIW NEGIZLERI (1946–1991-JÍLLAR)
Creators: name: Muratbaeva  A.
Publisher: name: Zenodo
Year: 2024

description: Milletler aralıq tatıwlıq – ulıwma insaniy qádiriyat bolıp, hár túrli xalıqlar birgelikte jasaytuǵın aymaq hám mámleketlerdiń rawajlanıwın belgileydi. Sociallıq rawajlanıwdıń nátiyjesi bolǵan sociallıq etnikalıq birlikler bir-birinen óziniń turmıs tárizi, úrp-ádeti, ekonomikalıq rawajlanıwı dárejesine qarap parıqlanadı, biraq eń aldı menen óziniń tili hám ruwxıyatı, tariyxıy dástúrleri hám ótmishi menen, ásirese, milliy sana-sezimi hám dúnyaqarası menen ajıralıp turadı. Rawajlanıp atırǵan jámiyette jasawshı hár bir millettiń ruwxıy portreti sol jámiyettiń materiallıq, sociallıq, tariyxıy shárt-sharáyatlarına qarap ózgerip otıradı. Millettiń ruwxıy portreti háreket etip turǵan jámiyetlik sana formalarında óz kórinisin tabadı. Eger sol mámlekette milletler hám etnikalıq toparlar arasında tatıwlıq, awızbirshilik, óz ara húrmet bolsa social-ekonomikalıq rawajlanıw páti kúsheyedi. Milletlerdiń hám milliy mádeniyatlardıń bir-birine tásiri arqasında usı aymaqta jasap atırǵan xalıqlardıń ruwxıy ósiwi ushın jaǵday jaratıladı. Ózbekstan Respublikası Prezidenti Sh.M. Mirziyoev 2016-jılı 17-oktyabrde Qaraqalpaqstanda: «Ǵárezsizlik jıllarında biz erisken eń úlken hám biybaha baylıq – kóp milletli xalqımızdıń birligi, qaraqalpaqsha ibara menen aytqanda, awızbirshiligi, jámiyetimizdegi óz ara miyrim-shápáát hám jámleskenlik ortalıǵı esaplanadı» degen edi [1]. Búgingi kúnde mámleketimizde 130 dan aslam millet hám xalıq wákilleri, diniy isenimi túrli insanlar bir mákan, bir watan bolǵan Ózbekstanda ullı ideya, arzıw-úmit, anıq maqset hám niyetler jolında ǵamxor, pikirles hám awızbirshilikte jasap atır.
Impacts of government risk management policies on hedging in futures and options:LPM2 hedge model vs. EU hedge model
Creators: name: Zhang, Rui (Carolyn)
name: Houston, Jack E.
name: Vedenov, Dmitry V.
name: Barnett, Barry J.
name: Zhang, Rui (Carolyn)
name: Houston, Jack E.
name: Vedenov, Dmitry V.
name: Barnett, Barry J.
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agricultural Finance
subject: Down-side Risk
subject: LPM2 Hedge Model
subject: Government Payments
subject: Crop Insurance Policies
subject: Copula Simulation
subject: Conditional Kernel Density

description: The main objective of this study is to compare the impacts of government payments and crop insurance policies on the use of futures and options measured from a downside risk hedge model with the impacts analyzed by the expected utility (EU) hedge model. Understanding the effects of government-provided risk management tools on the private market risk management tools, such as futures and options, provides value to both crop farmers and policy makers. Comparison of the impacts from the two hedge models shows that crop farmer will hedge less in futures under the LPM2 model than under the EU hedge model. This finding indicates that model misspecification is another reason for the phenomenon that farmers actually hedge less in futures than predicted by the EU model. From the perspective of exploring new research techniques, this study applied two relatively new simulation concepts, copula simulation and conditional kernel density approach, to make the simulation assumptions less restrictive and more consistent with observations. The copula simulation applied in this study allows yield and price to have more flexible joint distribution functions than multivariate normal; the conditional kernel density approach used in farm yield simulation enables the variance of farm yield varies with county yield rather than being constant.
Cash Settlement of Lean Hog Futures Contracts Reexamined
Creators: name: Frank, Julieta
name: Gomez, Miguel I.
name: Kunda, Eugene L.
name: Garcia, Philip
name: Frank, Julieta
name: Gomez, Miguel I.
name: Kunda, Eugene L.
name: Garcia, Philip
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agricultural Finance
subject: basis behavior
subject: cash settlement
subject: ex-ante basis risk
subject: lean hogs futures contract
subject: regional basis

description: In 1997 the Chicago Mercantile Exchange replaced its live hog futures contract with a cash settlement mechanism based on a Lean Hog Index. Although cash settlement was expected to increase the use of the contract as a hedging tool, producers and packers are concerned that convergence between cash and futures prices is not occurring and that the volatility of the lean hog contract basis has increased in recent years. The purpose of the paper is to reexamine cash settlement of lean hog futures contracts as a hedging tool, focusing on basis behavior and management of basis risk. We also investigate alternative hedging instruments that take into account location differences between regional cash prices and the CME lean hog index. Our results indicate that basis has widened and its variability prior to expiration has increased in the cash settlement period. Nevertheless, there is no evidence that ex-ante basis risk has increased, suggesting that the ability to forecast basis prior to expiration has not decreased with cash settlement. Our findings indicate that a contract on a regional basis can reduce producer price risk and may increase market returns. The benefits of a regional basis appear to accrue from providing the producer with an opportunity to manage the variability in returns associated with both the price level and basis.
Food Security Dynamics in the United States, 2001-2017
Creators: name: Lee, Seungmin
name: Barrett, Christopher B.
name: Hoddinott, John F.
name: Lee, Seungmin
name: Barrett, Christopher B.
name: Hoddinott, John F.
Publisher: name: Unknown
Year: 2021
Subjects: subject: Agricultural and Food Policy
subject: Food Insecurity
subject: Hunger Measurement
subject: PSID

description: This paper studies household food security dynamics in the United States from 2001 to 2017. We introduce a new measure, the probability of food security (PFS), the estimated probability that a household’s food expenditures equal or exceed the minimum cost of a healthful diet. We use PFS to analyze household-level as well as subpopulation-scale dynamics by investigating both the conditional distribution of food insecurity spells and the chronic and transient components of food insecurity over an extended period. More than half of newly food insecure households resume food security within two years. Households headed by female, non-White, or less educated individuals disproportionately suffer persistent, chronic food insecurity.
Volatility Persistence in Commodity Futures:Inventory and Time-to-Delivery Effects
Creators: name: Karali, Berna
name: Thurman, Walter N.
name: Karali, Berna
name: Thurman, Walter N.
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agricultural Finance
subject: volatility persistence
subject: theory of storage
subject: volatility
subject: futures markets
subject: lumber

description: Most financial asset returns exhibit volatility persistence. We investigate this phenomenon in the context of daily returns in commodity futures markets. We show that the time gap between the arrival of news to the markets and the delivery time of futures contracts is the fundamental variable in explaining volatility persistence in the lumber futures market. We also find an inverse relationship between inventory levels and lumber futures volatility.
PSR J1012+5307: a millisecond pulsar with an extremely low-mass white dwarf companion
Creators: name: Sánchez, D. Mata
name: Istrate, A. G.
name: van Kerkwijk, M. H.
name: Breton, R. P.
name: Kaplan, D. L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Binaries harbouring millisecond pulsars enable a unique path to determine neutron star masses: radio pulsations reveal the motion of the neutron star, while that of the companion can be characterised through studies in the optical range. PSR J1012+5307 is a millisecond pulsar in a 14.5-h orbit with a helium-core white dwarf companion. In this work we present the analysis of an optical spectroscopic campaign, where the companion star absorption features reveal one of the lightest known white dwarfs. We determine a white dwarf radial velocity semi-amplitude of K_2 = 218.9 +- 2.2 km/s, which combined with that of the pulsar derived from the precise radio timing, yields a mass ratio of q=10.44+- 0.11. We also attempt to infer the white dwarf mass from observational constraints using new binary evolution models for extremely low-mass white dwarfs, but find that they cannot reproduce all observed parameters simultaneously. In particular, we cannot reconcile the radius predicted from binary evolution with the measurement from the photometric analysis (R_WD=0.047+-0.003 Rsun). Our limited understanding of extremely low-mass white dwarf evolution, which results from binary interaction, therefore comes as the main factor limiting the precision with which we can measure the mass of the white dwarf in this system. Our conservative white dwarf mass estimate of M_WD = 0.165 +- 0.015 Msun, along with the mass ratio enables us to infer a pulsar mass of M_NS = 1.72 +- 0.16 Msun. This value is clearly above the canonical 1.4 Msun, therefore adding PSR J1012+5307 to the growing list of massive millisecond pulsars.
description: 13 pages, 7 figures. Accepted for publication in MNRAS
Results of a search for 2$β$-decay of $^{136}$Xe with high-pressure copper proportional counters in Baksan Neutrino Observatory
Creators: name: Gavriljuk, Ju. M.
name: Gangapshev, A. M.
name: Kuzminov, V. V.
name: Panasenko, S. I.
name: Ratkevich, S. S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The experiment for the 2$β$-decay of $^{136}$Xe search with two high-pressure copper proportional counters has been held in Baksan neutrino observatory. The search for the process is based on comparison of spectra measured with natural and enriched xenon. No evidence has been found for 2$β$(2$ν$)- and 2$β$(0$ν$)-decay. The decay half lifetime limit based on data measured during 8000 h is T$_{1/2}$$\geq8.5\cdot10^{21}$yr for 2$ν$-mode and T$_{1/2}$$\geq3.1\cdot10^{23}$yr for 0$ν$-mode (90%C.L.).
description: 9 pages, 8 figures; talk at the NANP'05 Conference; submitted to Phys. At. Nucl
Additional file 1 of Genome-wide association analysis of canine T zone lymphoma identifies link to hypothyroidism and a shared association with mast-cell tumors
Creators: name: Labadie, Julia D.
name: Elvers, Ingegerd
name: Feigelson, Heather Spencer
name: Magzamen, Sheryl
name: Yoshimoto, Janna
name: Dossey, Jeremy
name: Burnett, Robert
name: Avery, Anne C.
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1. GWA for all TZL combinations. QQ-plot (left) and Manhattan plot (right). A) TZL case + TZUS vs. control; B) TZL case vs. control; C) TZL case vs. TZUS.
Traffic Management System Using Deep Learning
Creators: name: Prarthana Kulkarni,K Srilaxmi, Umme Hani shafeeq, Sakshi Kulshreshtha,  Raghavendra M Devadas
Publisher: name: Zenodo
Year: 2024

description: The growing complexity of urban traffic necessitates innovative solutions to enhance efficiency, safety, and sustainability. Deep Learning (DL) techniques have emerged as a promising avenue for revolutionizing conventional traffic management systems. This article presents a comprehensive investigation into the application of DL in the field of traffic management, with a specific focus on its role in improving traffic flow, mitigating congestion, and enhancing safety. The proposed Traffic Management System (TMS) utilizes the capabilities of deep neural networks to analyze vast amounts of diverse traffic data. By integrating real-time sensor data, such as video feeds, GPS information, and traffic flow patterns, the system employs convolutional neural networks (CNNs) and recurrent neural networks (RNNs) to achieve accurate and efficient traffic analysis and prediction. Furthermore, this article emphasizes the challenges and opportunities associated with implementing DL-based Traffic Management Systems, particularly in terms of scalability, robustness, and privacy concerns. Ethical considerations regarding data collection, model biases, and societal impacts are also addressed. The effectiveness of the proposed system is validated through simulations and real-world case studies, demonstrating significant improvements in traffic flow, reduced congestion, and enhanced safety metrics. This research highlights the potential of Deep Learning as a transformative tool in shaping the future of urban transportation, paving the way for smarter and more adaptive traffic management systems. [1]
Market Depth in Lean Hog and Live Cattle Futures Markets
Creators: name: Frank, Julieta
name: Garcia, Philip
name: Frank, Julieta
name: Garcia, Philip
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agricultural Finance
subject: Bayesian MCMC
subject: lean hog futures
subject: liquidity cost
subject: live cattle futures
subject: market depth
subject: market microstructure

description: Liquidity costs in futures markets are not observed directly because bids and offers occur in an open outcry pit and are not recorded. Traditional estimation of these costs has focused on bidask spreads using transaction prices. However, the bid-ask spread only captures the tightness of the market price. As the volume increases measures of market depth which identify how the order flow moves prices become important information. We estimate market depth for lean hogs and live cattle markets using a Bayesian MCMC method to estimate unobserved data. While the markets are highly liquid, our results show that cost- and risk-reducing strategies may exist. Liquidity costs are highest when larger volumes are traded at distant contracts. For hogs the market becomes less liquid prior to the expiration month. For cattle this occurs during the expiration month when the liquidity risk is also higher. For both markets this coincides with periods of low volume. For the nearby contract highest trading volume occurs at the beginning of the month prior to expiration and lowest trading volume occurs in the expiration month. For both commodities the cumulative effect of volume on price change may lead to liquidity costs higher than a tick.
On the initial value problem for second order scalar fluctuations in Einstein static
Creators: name: Losic, B.
name: Unruh, W. G.
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider fluctuations in a perfect irrotational fluid coupled to gravity in an Einstein static universe background. We show that the homogeneous linear perturbations of the scalar and metric fluctuations in the Einstein static universe must be present if the second order constraint equations are to be integrable. I.e., the 'linearization stability' constraint forces the presence of these homogeneous modes. Since these linear homogeneous scalar modes are well known to be exponentially unstable, the tactic of neglecting these modes to create a long-lived, almost Einstein universe does not work, even if all higher order (L $>$ 1) modes are dynamically stable.
description: 8 pages, no figures, changes made to the presentation throughout to emphasize the linear nature of the analysis and the treatment of the irrotational perfect fluid. Conclusions unchanged. Submitted to PRD
The Adequacy of Speculation in Agricultural Futures Markets:Too Much of a Good Thing?
Creators: name: Sanders, Dwight R.
name: Irwin, Scott H.
name: Merrin, Robert P.
name: Sanders, Dwight R.
name: Irwin, Scott H.
name: Merrin, Robert P.
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agricultural Finance
subject: Commitment’s of Traders
subject: index funds
subject: commodity futures markets

description: Long-only commodity index funds have been blamed by other futures market participants for inflating commodity prices, increasing market volatility, and distorting historical price relationships. Much of this criticism is leveled without any formal empirical support or even cursory data analyses. The Commodity Futures Trading Commission makes available the positions held by index funds and other large traders in their Commitment’s of Traders report. In this research, we make an initial assessment of the size and activity of index funds in traditional agricultural futures markets. The results suggest that after an initial surge from early 2004 through mid-2005, index fund positions have stabilized as a percent of total open interest. Speculative measures—such as Working’s T—suggest that long-only funds may provide a benefit in markets traditionally dominated by short hedging.
Allocating outreach resources for disease control in a dynamic population with information spread
Creators: name: Wilder, Bryan
name: Sze-Chuan Suen
name: Milind Tambe
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: Science Policy

description: Infected individuals must be aware of disease symptoms to seek care, so outreach and education programs are critical to disease control. However, public health organizations often only have limited resources for outreach and must carefully design campaigns to maximize effectiveness, potentially leveraging word-of-mouth information spread. We show how classic epidemiological models can be reformulated such that identifying an efficient disease control resource allocation policy in the context of information spread becomes a submodular maximization problem. This means that our framework can simultaneously handle multiple, interacting dynamic processes coupled through the likelihood of disease clearance, allowing our framework to provide insight into optimal resource allocation while considering social dynamics in addition to disease dynamics (e.g., knowledge spread and disease spread). We then demonstrate that this problem can be algorithmically solved and can handle stochasticity in input parameters by examining a numerical example of tuberculosis control in India.