cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
More planetary candidates from K2 Campaign 5 by tran_k2
Creators: name: Kovacs, Geza
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: CONTEXT. The exquisite precision of the space-based photometric surveys and the unavoidable presence of instrumental systematics and intrinsic stellar variability call for the development of sophisticated methods that separate these signal components from those caused by planetary transits. AIMS. Here we introduce tran_k2 a stand-alone Fortran code to search for planetary transits under the colored noise of stellar variability and instrumental effects. With this code we perform a survey for new candidates. METHODS. Stellar variability is represented by a Fourier series, and, if needed, by an autoregressive model to avoid excessive Gibbs overshoots at the edges. For the treatment of systematics, cotrending and external parameter decorrelation are employed by using cotrending stars with low stellar variability, the chip position and the background flux level at the target. The filtering is made within the framework of the standard weighted least squares, where the weights are determined iteratively, to allow robust fit and separate the transit signal from stellar variability and systematics. Once the periods of the transit components are determined from the filtered data by the box-fitting least squares method, we reconstruct the full signal and determine the transit parameters with a higher accuracy. This step greatly reduces the excessive attenuation of the transit depths and minimizes shape deformation. RESULTS. The code was tested on the field of Campaign 5 of the K2 mission. We detected 98% of the systems with all their candidate planets reported earlier by other authors, surveyed the whole field and discovered 15 new systems. Additional 3 planets were found in 3 multiplanetary systems and 2 more planets were found in a previously known single planet system.
description: 1.15 Mb, 18 pages, after the 1st referee report from A&A
Attributing a probability to the shape of a probability density
Creators: name: Hall, Peter
name: Ooi, Hong
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62G07 (Primary) 62G20. (Secondary)

description: We discuss properties of two methods for ascribing probabilities to the shape of a probability distribution. One is based on the idea of counting the number of modes of a bootstrap version of a standard kernel density estimator. We argue that the simplest form of that method suffers from the same difficulties that inhibit level accuracy of Silverman's bandwidth-based test for modality: the conditional distribution of the bootstrap form of a density estimator is not a good approximation to the actual distribution of the estimator. This difficulty is less pronounced if the density estimator is oversmoothed, but the problem of selecting the extent of oversmoothing is inherently difficult. It is shown that the optimal bandwidth, in the sense of producing optimally high sensitivity, depends on the widths of putative bumps in the unknown density and is exactly as difficult to determine as those bumps are to detect. We also develop a second approach to ascribing a probability to shape, using Muller and Sawitzki's notion of excess mass. In contrast to the context just discussed, it is shown that the bootstrap distribution of empirical excess mass is a relatively good approximation to its true distribution. This leads to empirical approximations to the likelihoods of different levels of ``modal sharpness,'' or ``delineation,'' of modes of a density. The technique is illustrated numerically.
description: Published at http://dx.doi.org/10.1214/009053604000000607 in the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Additional file 1 of Spatial predictive properties of built environment characteristics assessed by drop-and-spin virtual neighborhood auditing
Creators: name: Plascak, Jesse J.
name: Schootman, Mario
name: Rundle, Andrew G.
name: Xing, Cathleen
name: Adana A. M. Llanos
name: Stroup, Antoinette M.
name: Mooney, Stephen J.
Publisher: name: figshare
Year: 2020
Subjects: 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: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Science Policy
subject: Plant Biology

description: Additional file 1. Supplementary methods of spatial analyses.
The spin-wave spectrum of the Jahn-Teller system LaTiO3
Creators: name: Schmitz, Robert
name: Entin-Wohlman, Ora
name: Aharony, Amnon
name: Harris, A. Brooks
name: Mueller-Hartmann, Erwin
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present an analytical calculation of the spin-wave spectrum of the Jahn-Teller system LaTiO3. The calculation includes all superexchange couplings between nearest-neighbor Ti ions allowed by the space-group symmetries: The isotropic Heisenberg couplings and the antisymmetric (Dzyaloshinskii-Moriya) and symmetric anisotropies. The calculated spin-wave dispersion has four branches, two nearly degenerate branches with small zone-center gaps and two practically indistinguishable high-energy branches having large zone-center gaps. The two lower-energy modes are found to be in satisfying agreement with neutron-scattering experiments. In particular, the experimentally detected approximate isotropy in the Brillouin zone and the small zone-center gap are well reproduced by the calculations. The higher-energy branches have not been detected yet by neutron scattering but their zone-center gaps are in satisfying agreement with recent Raman data.
description: 13 pages, 5 figures
X-ray Dips and Polarization Angle Swings in GX 13+1
Creators: name: Di Marco, Alessandro
name: La Monaca, Fabio
name: Bobrikova, Anna
name: Stella, Luigi
name: Papitto, Alessandro
name: Poutanen, Juri
name: Baglio, Maria Cristina
name: Bachetti, Matteo
name: Loktev, Vladislav
name: Pilia, Maura
name: Rogantini, Daniele
Publisher: name: arXiv
Year: 2025
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present the result from the April 2024 observation of the low-mass X-ray binary GX 13+1 with the Imaging X-ray Polarimetry Explorer (IXPE), together with NICER and Swift-XRT coordinated observations. Two light curve dips were observed; during them, the harder Comptonized spectral component was dominant and the polarization degree higher than in the softer, off-dip intervals. Through a joint analysis of the three IXPE observations, which also included the dip from the first observation, we demonstrate that the polarization properties varied in response to the intensity and spectral hardness changes associated with the dips. The polarization degree attained values up to ~4%. The polarization angle showed a swing of ~70° across the dip and off-dip states, comparable to the continuous rotation seen during the first IXPE observation. We discuss these results in the context of models for polarized emission from the accretion disk and the boundary/spreading layer on the neutron star surface. We also draw attention to the role that an extended accretion disk corona or disk wind can play in generating high polarization degrees and, possibly, swings of the polarization angle.
The Rise of New Farmer Cooperatives in China; Evidence from Hubei Province
Creators: name: Bijman, Jos
name: Hu, Dinghuan
name: Bijman, Jos
name: Hu, Dinghuan
Publisher: name: Unknown
Year: 2011
Subjects: Agribusiness

description: Since the late 1990s, the number of farmer cooperatives in China has rapidly grown. The adoption of the national law on farmer professional cooperatives in 2007 has led to significant governmental support for the establishment and management of farmer professional cooperatives. This paper explores the organizational features of the newly established cooperatives as well as the services they provide to their members. Particular attention is given to the role of local entrepreneurs in grouping farmers and in acquiring support from local and regional state agencies. The paper is based on data about a group of 200 agriculture and aquaculture cooperatives in Hubei province, central China.
Young Crab-like pulsars and luminous X-ray sources in starbursts and optically dull galaxies
Creators: name: Perna, Rosalba
name: Stella, Luigi
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recent Chandra observations of nearby galaxies have revealed a number of ultraluminous X-ray sources (ULXs) with super-Eddington luminosities, away from the central regions of non-active galaxies. The nature of these sources is still debated. We argue that a fraction of them could be young, Crab-like pulsars, the X-ray luminosity of which is powered by rotation. We use the pulsar birth parameters estimated from radio pulsar data to compute the steady-state pulsar X-ray luminosity distribution as a function of the star formation rate (SFR) in the galaxy. We find that ~10% of optically dull galaxies are expected to have a source with L_x >~ 10^{39} erg/s, while starbursts galaxies should each have several of these sources. We estimate that the X-ray luminosity of a few percents of galaxies is dominated by a single bright pulsar with L_x >~10^{39} erg/s, roughly independently of its SFR. We discuss observational diagnostics that can help distinguish the young pulsar population in ULXs.
description: 17 pages, 4 figures, accepted to ApJ
Bump hunting with non-Gaussian kernels
Creators: name: Hall, Peter
name: Minnotte, Michael C.
name: Zhang, Chunming
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62G07 (Primary) 62G20. (Secondary)

description: It is well known that the number of modes of a kernel density estimator is monotone nonincreasing in the bandwidth if the kernel is a Gaussian density. There is numerical evidence of nonmonotonicity in the case of some non-Gaussian kernels, but little additional information is available. The present paper provides theoretical and numerical descriptions of the extent to which the number of modes is a nonmonotone function of bandwidth in the case of general compactly supported densities. Our results address popular kernels used in practice, for example, the Epanechnikov, biweight and triweight kernels, and show that in such cases nonmonotonicity is present with strictly positive probability for all sample sizes n\geq3. In the Epanechnikov and biweight cases the probability of nonmonotonicity equals 1 for all n\geq2. Nevertheless, in spite of the prevalence of lack of monotonicity revealed by these results, it is shown that the notion of a critical bandwidth (the smallest bandwidth above which the number of modes is guaranteed to be monotone) is still well defined. Moreover, just as in the Gaussian case, the critical bandwidth is of the same size as the bandwidth that minimises mean squared error of the density estimator. These theoretical results, and new numerical evidence, show that the main effects of nonmonotonicity occur for relatively small bandwidths, and have negligible impact on many aspects of bump hunting.
description: Published at http://dx.doi.org/10.1214/009053604000000715 in the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
title: Teaching Resilience to Children in Australia
Creators: name: Swann, Jessica
Publisher: name: University of Southern Queensland
Year: 2023
Subjects: classificationCode: 5299
subject: Other psychology

description: Resilience interventions are recommended to address the psychological distress experienced by children in Australia. However, it is still unclear how best to teach resilience. This research contained a systematic literature review analysing 9 quantitative studies since 2017 that explored Australian resilience interventions for children aged 8-14. Intervention designs were explored by comparing program elements to key areas that contribute to building resilience in children and considering ecological reach. Outcomes were also recorded. Additionally, this research evaluated the Bouncing Back Resiliency Workshop, a locally designed resilience intervention for children. The workshop was delivered to a grade 5 class in a Queensland Primary School. Participants included students (n = 11), their parents, and teacher. The mixed methods study design included exploring the workshop contents, recommending improvements, and measuring changes pre- to post-program. Overall, Australian resilience interventions are addressing individual resilience factors but neglecting family and community factors. Positive outcomes include increased resilience, reduced symptoms of psychopathology, and increased factors contributing to resilience. It is strongly recommended that resilience programs continue to be designed from an ecological perspective and delivered to children in Australia. The Bouncing Back Resiliency Workshop demonstrated increased resilience and reduced emotional and behavioural problems in children. These findings are most notable because the participating children were experiencing high levels of adversity. These findings indicate that the Bouncing Back Resiliency Workshop is an effective intervention for increasing resilience and reducing emotional and behavioural problems. It is recommended that further exploration of the workshop includes a larger, more varied sample and a control group.
An Alternative Method for Extracting the von Neumann Entropy from Renyi Entropies
Creators: name: D'Hoker, Eric
name: Dong, Xi
name: Wu, Chih-Hung
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: An alternative method is presented for extracting the von Neumann entropy $-\operatorname{Tr} (ρ\ln ρ)$ from $\operatorname{Tr} (ρ^n)$ for integer $n$ in a quantum system with density matrix $ρ$. Instead of relying on direct analytic continuation in $n$, the method uses a generating function $-\operatorname{Tr} \{ ρ\ln [(1-z ρ) / (1-z)] \}$ of an auxiliary complex variable $z$. The generating function has a Taylor series that is absolutely convergent within $|z|<1$, and may be analytically continued in $z$ to $z = -\infty$ where it gives the von Neumann entropy. As an example, we use the method to calculate analytically the CFT entanglement entropy of two intervals in the small cross ratio limit, reproducing a result that Calabrese et al. obtained by direct analytic continuation in $n$. Further examples are provided by numerical calculations of the entanglement entropy of two intervals for general cross ratios, and of one interval at finite temperature and finite interval length.
description: 24 pages, 4 figures
Additional file 1 of Effects of educational practices on the peritonitis risk in peritoneal dialysis: a retrospective cohort study with data from the French peritoneal Dialysis registry (RDPLF)
Creators: name: Bonnal, Hélène
name: Bechade, Clémence
name: Boyer, Annabel
name: Lobbedez, Thierry
name: Guillouët, Sonia
name: Verger, Christian
name: Ficheux, Maxence
name: Lanot, Antoine
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy

description: Additional file 1 Table 1 Cox model for survival free of peritonitis. Bivariate analysis. Table showing the results of the bivariate Cox survival model for survival free of peritonitis.
Do Field Crop Farms and Mixed Farms of Old and New EU Members Improve Productivity at the Same Rate? A Regional Level Approach
Creators: name: Blasejczyk-Majka, Lucyna
name: Kala, Radoslaw
name: Maciejewski, Krzysztof
name: Blasejczyk-Majka, Lucyna
name: Kala, Radoslaw
name: Maciejewski, Krzysztof
Publisher: name: Unknown
Year: 2011
Subjects: subject: Crop Production/Industries
subject: Productivity Analysis
subject: data envelopment analysis
subject: technical efficiency change
subject: scale efficiency change
subject: Malmquist index

description: data contained in the Farm Accounting Data Network (FADN). Analyses covered the first four years following the extension of the European Union in 2004. The adopted units comprised average farms representing 80 regions belonging to eleven countries of EU-15 and four new EU member states. Estimation of the Malmquist total factor productivity (TFP) and its components was conducted using data envelopment analysis, separately for each of the two types of farms taking into consideration their economic size. The main findings concerning the pure technical efficiency change indicate that in the units from the old regions there was a slight improvement for field crop farms and stagnation for mixed farms, and a decrease in the units from the new regions, being bigger for mixed farms and smaller for field crop farms. The biggest effect was observed for the technical change index, with a bigger increase for crop farms from old regions than those from the new member states. The estimated Malmquist index confirms a conjecture that the more specialized farms more effectively improve overall productivity than mixed farms, where modernization efforts are more scattered. At the same time the average growth rate of TFP in crop farms from the EU-15 regions in the analyzed period was much faster that in analogous farms from the new regions. For mixed farms the difference in the rate of change was similar, but at a much lower level.
Measurement Induced Localization of Relative Degrees of Freedom
Creators: name: Cable, Hugo
name: Knight, Peter L.
name: Rudolph, Terry
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We present a comprehensive study, using both analytical and numerical methods, of measurement-induced localization of relational degrees of freedom. Looking first at the interference of two optical modes, we find that the localization of the relative phase can be as good for mixed states - in particular for two initially Poissonian or thermal states - as for the well-known case of two Fock states. In a realistic setup the localization for mixed states is robust and experimentally accessible, and we discuss applications to superselection rules. For an ideal setup and initial Fock states we show how a relational Schrödinger cat state emerges, and investigate circumstances under which such a state is destroyed. In our second example we consider the localization of relative atomic phase between two Bose Einstein condensates, looking particularly at the build up of spatial interference patterns, an area which has attracted much attention since the work of Javanainen and Yoo. We show that the relative phase localizes much faster than was intimated in previous studies focusing on the emerging interference pattern itself. Finally, we explore the localization of relative spatial parameters discussed in recent work by Rau, Dunningham and Burnett. We retain their models of indistinguishable scattering but make different assumptions. In particular we consider the case of a real distant observer monitoring light scattering off two particles, who records events only from a narrow field of view. The localization is only partial regardless of the number of observations. This paper contributes to the wider debate on relationism in quantum mechanics, which treats fundamental concepts - reference frames and conservation laws - from a fully quantum and operational perspective.
description: v2 has minor corrections, published version
A Model for Multidimensional Delayed Detonations in SN Ia Explosions
Creators: name: Golombek, I.
name: Niemeyer, J. C.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We show that a flame tracking/capturing scheme originally developed for deflagration fronts can be used to model thermonuclear detonations in multidimensional explosion simulations of type Ia supernovae. After testing the accuracy of the front model, we present a set of two-dimensional simulations of delayed detonations with a physically motivated off-center deflagration-detonation-transition point. Furthermore, we demonstrate the ability of the front model to reproduce the full range of possible interactions of the detonation with clumps of burned material. This feature is crucial for assessing the viability of the delayed detonation scenario.
description: 7 pages, accepted by A&A
Alternative Insurance Indexes for Drought Risk in Developing Countries
Creators: name: Bobojonov, Ihtiyor
name: Sommer, Rolf
name: Bobojonov, Ihtiyor
name: Sommer, Rolf
Publisher: name: Unknown
Year: 2011
Subjects: subject: Risk and Uncertainty
subject: risk management
subject: index insurance
subject: alternative index
subject: CropSyst
subject: NDVI

description: The paper compares the risk coping potential of insurances that are based on indices derived from weather (rainfall and temperature) data as well as from crop model and remote sensing analyses. Corresponding indices were computed for the case of wheat production in the Aleppo region of northern Syria, representative for agricultural production systems in many developing countries. The results demonstrate that weather derivatives such as the rainfall sum index (RSI) and the rainfall deficit index (RDI) have a very good potential for coping with risk in semiarid areas. Crop simulation model index (CSI) on the other hand could serve as an alternative to RSI and RDI when historical farm yield data is not available or not reliable. In such cases we simulated historical yields using the CropSyst cropping system simulation model. Remote sensing data could be used to establish index insurances where weather stations are sparsely located and (daily time step) weather data thus not available. The study analyzes two indexes estimated from the Normalized Differential Vegetation Index (NDVI): (1.) the farm level NDVI (FNDVI) and (2.) the area level NDVI (ANDVI). FNDVI may have a very high potential for securing farm revenues, but may be prone to moral hazard since farm management changes and subsequent gains or losses in crop production are directly revealed by the NDVI when high resolution images are used. Therefore, we recommend ANDVI for developing countries since the index is estimated for the whole agricultural zone similar to traditional area-yield insurances.
A square-wave-driven radiofrequency quadrupole cooler and buncher for TITAN
Creators: name: Smith, Mathew
Publisher: name: University of British Columbia
Year: 2009

description: The TITAN (TRIUMF'S Ion Trap for Atomic and Nuclear science) project at TRIUMF will use the unique combination of an Electron Beam Ion Trap (EBIT) charge state breeder and a precision Penning trap to carry out high accuracy mass measurements (δm/m ≈ 1 x 10⁻⁸) on short-lived (t₁/₂≈ 50 ms) isotopes. In order to obtain fast and efficient charge state breeding it is necessary to inject a cooled and bunched beam into the EBIT. For radioactive isotopes this can be achieved by employing a segmented, gas-filled, RadioFrequency Quadrupole (RFQ). Such a device has been developed for use in the TITAN experiment. Previous RFQ coolers have been driven sinusoidally, however this device will be driven with a large amplitude (V[sub pp] = 400 V) high frequency (f = 1 MHz) square-wave. This makes a broadband, linear, cooling trap possible for the first time. Using matrix methods the motion of ions in a square-wave-driven trap were studied and the acceptance and the space charge limit of the trap calculated as a function of the operating parameter, q. A simple viscous drag model for the cooling process was then used to prove the cooling concept. A Monte Carlo routine was developed and used to simulate the cooling of cesium ions in a helium buffer gas. At an operating parameter of q = 0.4 a cooling time of 600/μs was found at a gas pressure of 2.5 x 10⁻² mbar. The final temperature, T[sub f], of the ion cloud was found as a function of q (for q < 0.4, T[sub f] < 400 K)- Ion optics for the injection and the extraction of ions from the trap were designed and simulated. Transverse rms emittances on the order of 3 π mm mrad and longitudinal rms emittances on the order of 2 eV μs for the extracted beam were demonstrated at an extraction energy of 2.5 keV. Simulations of a previously designed and manufactured stable ion source system were carried out to try and match the emittance of the beam to the acceptance of the RFQ. Through a combination of simulation and experimental results it was shown that with minor modification the system would give a relatively good approximation to the actual radioactive ion beam produced at TRIUMF. Further simulations showed that an acceptance of 99.8% of the modified beam by the RFQ will be possible.
Effect of particle geometry on phase transitions in two-dimensional liquid crystals
Creators: name: Martinez-Raton, Yuri
name: Velasco, Enrique
name: Mederos, Luis
Publisher: name: arXiv
Year: 2004
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Using a version of density-functional theory which combines Onsager approximation and fundamental-measure theory for spatially nonuniform phases, we have studied the phase diagram of freely rotating hard rectangles and hard discorectangles. We find profound differences in the phase behavior of these models, which can be attributed to their different packing properties. Interestingly, bimodal orientational distribution functions are found in the nematic phase of hard rectangles, which cause a certain degree of biaxial order, albeit metastable with respect to spatially ordered phases. This feature is absent in discorectangles, which always show unimodal behavior. This result may be relevant in the light of recent experimental results which have confirmed the existence of biaxial phases. We expect that some perturbation of the particle shapes (either a certain degree of polydispersity or even bimodal dispersity in the aspect ratios) may actually destabilize spatially ordered phases thereby stabilizing the biaxial phase.
description: 9 pages, 7 figures, to appear in JCP
Design and Implementation of a Low-Cost Spirometer for Predicting Respiratory Diseases
Creators: name: Manasvi Raj, Anshul
Publisher: name: Zenodo
Year: 2024

description:  Spirometry is an essential diagnostic tool for assessing lung function and detecting respiratory diseases. However, commercially available spirometers are often prohibitively expensive, with prices ranging from INR 15,000 to INR 70,000, depending on the brand and features. Hospital-grade spirometry machines, which are usually the most advanced and PC-based, cost between INR 50,000 to INR 100,000 or even higher. Additionally, the cost of a single spirometry test can range from INR 1,000 to INR 2,000. Despite their high cost, these spirometers do not always provide accurate results, comprehensive data, or precise disease indications.

To address these limitations, we have developed a low-cost spirometer with a total production cost of only INR 800. This device is capable of detecting and predicting a total of 26 diseases related to the lungs and heart with high accuracy. In this paper, we will discuss the materials, methodology, techniques, design, data acquisition, and report generation processes involved in the development of this spirometer. Our aim is to provide an affordable yet reliable alternative to existing spirometry solutions, making respiratory health monitoring accessible to a broader population.
Additional file 1 of A Bayesian data fusion based approach for learning genome-wide transcriptional regulatory networks
Creators: name: Sauta, Elisabetta
name: Demartini, Andrea
name: Vitali, Francesca
name: Riva, Alberto
name: Bellazzi, Riccardo
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Statistics
subject: FOS: Mathematics
subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: Additional file 1.
Transfer of entanglement from electrons to photons by optical selection rules
Creators: name: Titov, M.
name: Trauzettel, B.
name: Michaelis, B.
name: Beenakker, C. W. J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The entanglement transfer from electrons localized in a pair of quantum dots to circularly polarized photons is governed by optical selection rules, enforced by conservation of angular momentum. We point out that the transfer can not be achieved by means of unitary evolution unless the angular momentum of the two initial qubit states differs by 2 units. In particular, for spin-entangled electrons the difference in angular momentum is 1 unit -- so the transfer fails. Nevertheless, the transfer can be successfully completed if the unitary evolution is followed by a measurement of the angular momentum of each quantum dot and post-processing of the photons using the measured values as input.
description: 6 pages; contribution for the focus issue of New Journal of Physics on "Solid State Quantum Information"; revised in response to referee reports
Expected Utility or Prospect Theory Maximizers? Results from a Structural Model based on Field-experiment Data
Creators: name: Bocqueho, Geraldine
name: Jacquet, Florence
name: Reynaud, Arnaud
name: Bocqueho, Geraldine
name: Jacquet, Florence
name: Reynaud, Arnaud
Publisher: name: Unknown
Year: 2011
Subjects: subject: Risk and Uncertainty
subject: risk preferences
subject: field experiment
subject: experimental economics
subject: prospect theory

description: We elicit risk preferences of French farmers in a field experimental setting under expected utility theory and cumulative prospect theory. We use two different estimation methods, namely the interval approach and the estimation of a random preference model. On average, farmers are risk averse and loss averse. They also exhibit an inverse S-shaped probability weighting function, meaning that they tend to overweight small probabilities and underweight high probabilities. We infer from our results that CPT explains farmers’ behaviour better than EUT in the context of our experiment. We also investigate how preferences correlate with individual socio-demographic characteristics. We find that education and agricultural innovation are negatively linked with risk aversion. Our results also show that age, education, household size and the level of secured income tend to lower farmers’ loss aversion. Finally, older farmers and farmers with large farms distort probabilities less than the others. These findings contribute to the literature which compares expected utility with competing decision theories. They also give important insights into farmers’ behaviour towards risk, which is critical for relevant public policy design.
Polarization forces in water deduced from single molecule data
Creators: name: Tsiper, Eugene V.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Intermolecular polarization interactions in water are determined using a minimal atomic multipole model constructed with distributed polarizabilities. Hydrogen bonding and other properties of water-water interactions are reproduced to fine detail by only three multipoles $μ_H$, $μ_O$, and $θ_O$ and two polarizabilities $α_O$ and $α_H$, which characterize a single water molecule and are deduced from single molecule data.
description: 4 revtex pages, 3 embedded color PS figures
Mapping Data Structures: Challenges and Approaches
Creators: name: Mungall, Chris
Publisher: name: Zenodo
Year: 2023

description: This is the slides from my presentation at the [Mapping Commons Workshop](https://mapping-commons.github.io/sssom/workshops/) at ISB 2023 in Padua.

 

Additional write-up: https://ceur-ws.org/Vol-3591/om2023_STpaper3.pdf

 

The recordings of all talks is here: https://www.youtube.com/playlist?list=PLqu_J7ADQtKyX55F7RqZtaSS7TwGd3MoR

My talk: https://www.youtube.com/watch?v=9PyhJHF8ZZM&list=PLqu_J7ADQtKyX55F7RqZtaSS7TwGd3MoR&index=6
Impact of Off-farm Income on Farm Efficiency in Slovenia
Creators: name: Bojnec, Stefan
name: Ferto, Imre
name: Bojnec, Stefan
name: Ferto, Imre
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agricultural Finance
subject: Farm Management
subject: Off-farm income
subject: Stochastic frontier analysis
subject: Panel regression
subject: Quantile regression
subject: Slovenia

description: Impact of Off-farm Income on Farm Efficiency in Slovenia
Static cylindrical symmetry and conformal flatness
Creators: name: Herrera, L.
name: Denmat, G. Le
name: Marcilhacy, G.
name: Santos, N. O.
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present the whole set of equations with regularity and matching conditions required for the description of physically meaningful static cylindrically symmmetric distributions of matter, smoothly matched to Levi-Civita vacuum spacetime. It is shown that the conformally flat solution with equal principal stresses represents an incompressible fluid. It is also proved that any conformally flat cylindrically symmetric static source cannot be matched through Darmois conditions to the Levi-Civita spacetime. Further evidence is given that when the Newtonian mass per unit length reaches 1/2 the spacetime has plane symmetry.
description: 13 pages, Latex
Breather trapping and breather transmission in a DNA model with an interface
Creators: name: Alvarez, A.
name: Romero, F. R.
name: Archilla, J. F. R.
name: Cuevas, J.
name: Larsen, P. V.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We study the dynamics of moving discrete breathers in an interfaced piecewise DNA molecule. This is a DNA chain in which all the base pairs are identical and there exists an interface such that the base pairs dipole moments at each side are oriented in opposite directions. The Hamiltonian of the Peyrard--Bishop model is augmented with a term that includes the dipole--dipole coupling between base pairs. Numerical simulations show the existence of two dynamical regimes. If the translational kinetic energy of a moving breather launched towards the interface is below a critical value, it is trapped in a region around the interface collecting vibrational energy. For an energy larger than the critical value, the breather is transmitted and continues travelling along the double strand with lower velocity. Reflection phenomena never occur. The same study has been carried out when a single dipole is oriented in opposite direction to the other ones. When moving breathers collide with the single inverted dipole, the same effects appear. These results emphasize the importance of this simple type of local inhomogeneity as it creates a mechanism for the trapping of energy. Finally, the simulations show that, under favorable conditions, several launched moving breathers can be trapped successively at the interface region producing an accumulation of vibrational energy. Moreover, an additional colliding moving breather can produce a saturation of energy and a moving breather with all the accumulated energy is transmitted to the chain.
description: 15 pages, 11 figures
Additional file 2 of The global burden of pressure ulcers among patients with spinal cord injury: a systematic review and meta-analysis
Creators: name: Wondimeneh Shibabaw Shiferaw
name: Tadesse Yirga Akalu
name: Henok Mulugeta
name: Yared Asmare Aynalem
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 2. Methodological quality assessment of cross-sectional studies using modified Newcastle - Ottawa Scale (NOS).
title: Transcription du manuscrit de Semur-en-Auxois, Bibliothèque Municipale, ms. 1, p. 122
Creators: name: Aubert, Eduardo Henrik
name: Brochard, Pierre
name: Aubert, Eduardo Henrik
name: Brochard, Pierre
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2022
Subjects: subject: Laboratoire de médiévistique occidentale de Paris
subject: Semur-en-Auxois
subject: LaMOP

description: Transcription du manuscrit de Semur-en-Auxois, Bibliothèque Municipale, ms. 1, p. 122

production-software: eScriptorium + Kraken version 3.0.13 (PageXml)
description: Source: https://www.nakala.fr/10.34847/nkl.67dej4t9
description: Source: https://www.nakala.fr/10.34847/nkl.e905tdea
description: Relation: https://lamop.hypotheses.org/
description: Transcription du manuscrit Semur-en-Auxois, Bibliothèque Municipale, ms. 1
description: Transcription du manuscrit Semur-en-Auxois, Bibliothèque Municipale, ms. 1
Numerical linked cluster expansions for inhomogeneous systems
Creators: name: Gan, Johann
name: Hazzard, Kaden R. A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We develop a numerical linked cluster expansion (NLCE) method that can be applied directly to inhomogeneous systems, for example Hamiltonians with disorder and dynamics initiated from inhomogeneous initial states. We demonstrate the method by calculating dynamics for single-spin expectations and spin correlations in two-dimensional spin models on a square lattice, starting from a checkerboard state. We show that NLCE can give moderate to dramatic improvement over an exact diagonalization of comparable computational cost, and that the advantage in computational resources grows exponentially as the size of the clusters included grows. Although the method applies to any type of NLCE, our explicit benchmarks use the rectangle expansion. Besides showing the capability to treat inhomogeneous systems, these benchmarks demonstrate the rectangle expansion's utility out of equilibrium.
description: 9 pages, 6 figures
Exact ground states of a frustrated 2D magnet: deconfined fractional excitations at a first order quantum phase transition
Creators: name: Batista, C. D.
name: Trugman, S. A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We introduce a frustrated spin 1/2 Hamiltonian which is an extension of the two dimensional $J_1 - J_2$ Heisenberg model. The ground states of this model are exactly obtained at a first order quantum phase transition between two regions with different valence bond solid order parameters. At this point, the low energy excitations are deconfined spinons and spin-charge separation occurs under doping in the limit of low concentration of holes. In addition, this point is characterized by the proliferation of topological defects that signal the emergence of $Z_2$ gauge symmetry.
description: 4 pages, 3 figures
Loading of a far off resonance dipole force trap for stable ³⁹K
Creators: name: Prime, Erika
Publisher: name: University of British Columbia
Year: 2009

description: The TRIumf Neutral Atom Trap (TRINAT) group is performing precision measurements to test the standard model of the weak interaction. Nuclear β decay asymmetry experiments are carried out on radioactively decaying potassium isotopes, trapped in a Magneto Optical Trap (MOT). In order to accurately test whether parity is fully violated, atoms of well defined polarisation are required. A useful tool which can achieve a high level of polarisation is a Circularly polarized Far Off Resonance dipole Force Trap (CFORT). This work is the first step in its development; building the necessary components in order to successfully load stable ³⁹K into a linearly polarised FORT from a MOT, where the atoms are pre-cooled to a temperature of a few hundred μK. The FORT consists of 700mW of light from a Titanium Sapphire ring laser, linearly polarized and focused with a 200mm achromatic lens to a waist of 35μm. The light is detuned between 1 and 20nm from the D₁ transition and this gives rise to trap depths in the region of a few millikelvin. A characterisation of the FORT loading efficiency and lifetime as a function of FORT beam detuning, power and ellipticity are studied.
Additional file 1 of The global burden of pressure ulcers among patients with spinal cord injury: a systematic review and meta-analysis
Creators: name: Wondimeneh Shibabaw Shiferaw
name: Tadesse Yirga Akalu
name: Henok Mulugeta
name: Yared Asmare Aynalem
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 1. Methodological quality assessment of cohort studies using modified Newcastle - Ottawa Scale (NOS).
Quantum Drag Forces on a Sphere Moving Through a Rarefied Gas
Creators: name: Drosdoff, D.
name: Widom, A.
name: Srivastava, Y. N.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: As an application of quantum fluid mechanics, we consider the drag force exerted on a sphere by an ultra-dilute gas. Quantum mechanical diffraction scattering theory enters in that regime wherein the mean free path of a molecule in the gas is large compared with the sphere radius. The drag force is computed in a model specified by the ``sticking fraction'' of events in which a gaseous molecule is adsorbed by the spherical surface. Classical inelastic scattering theory is shown to be inadequate for physically reasonable sticking fraction values. The quantum mechanical scattering drag force is exhibited theoretically and compared with experimental data.
description: 5 pages no figures
Ultra-sensitive integrated circuit sensors based on high-order nonHermitian topological physics
Creators: name: Deng, Wenyuan
name: Zhu, Wei
name: Chen, Tian
name: Sun, Houjun
name: Zhang, Xiangdong
Publisher: name: arXiv
Year: 2025
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: High-precision sensors are of fundamental importance in modern society and technology.Although numerous sensors have been developed, obtaining sensors with higher levels of sensitivity and stronger robustness has always been expected. Here, we propose theoretically and demonstrate experimentally a novel class of sensors with superior performances based on exotic properties of highorder non-Hermitian topological physics. The frequency shift induced by perturbations for these sensors can show an exponential growth with respect to the size of the device, which can well beyond the limitations of conventional sensors. The fully integrated circuit chips have been designed and fabricated in a standard 65nm complementary metal oxide semiconductor process technology. The sensitivity of systems not only less than 0.001fF has been experimentally verified, they are also robust against disorders.Our proposed ultra-sensitive integrated circuit sensors can possess a wide range of applications in various fields and show an exciting prospect for next-generation sensing technologies.
description: The missing references have been added
Hedonic and Utilitarian Motives for Consumers’ Learning Processes: The GDA Food Label
Creators: name: Puspa, Jofi
name: Kuhl, Rainer
name: Puspa, Jofi
name: Kuhl, Rainer
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agricultural and Food Policy
subject: Consumer/Household Economics
subject: Demand and Price Analysis
subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: Health Economics and Policy
subject: motivation
subject: nutrient-Labeling
subject: attitude
subject: intentional behavior

description: As one of the stimuli flows in the food market the GDA-labeling was established in 2007. The original concept of introducing this label was to provide information that may bring about more healthy eating patterns. Four years after launching it seems relevant to understand how well the consumers have adopted to that information. Consumer learning that occurs through exposure to external sources of information such as GDA-labeling can happen consciously or subconsciously, on a high involvement level or due to the presence of more conducive situation. Therefore understanding learning process and its substantiations such as utilitarian and hedonic motives are salient issues. This study has aims to understand learning process of GDA-label and to determine two types of learning substantiations. Relatively to the respondents’ education background the recall- and comprehension tests were rather unsatisfactory. In contrast to that the recognition test was relatively good. The result of this study indicated that in this area the appearance or assembly of the GDA-symbol was not accounted to be problematical. The consumers could adopt, learn and memorize the contents of the symbol very well. However, a significant amount of communication or education campaigns is required. Communication activities are necessary in order to position the GDAlabel according to its original concept.
YOUNG CONSUMERS’ DEMAND FOR NATURAL SWEETENERS
Creators: name: Krutkramele, Katrina
name: Ehmke, Mariah D.
name: Krutkramele, Katrina
name: Ehmke, Mariah D.
Publisher: name: Unknown
Year: 2010
Subjects: Agricultural and Food Policy
Consumer/Household Economics
Demand and Price Analysis
Food Consumption/Nutrition/Food Safety
Food Security and Poverty
Health Economics and Policy

description: Health conscious consumers are increasingly concerned about the caloric content and glycemic index of sweeteners added to food. Currently, the average American consumes 22 teaspoons of added sugar in processed foods per day. Young people typically consume higher amounts of sweeteners via candy, sports drinks, and soda (Smed, Jensen et al. 2007). Recently, the American Heart Association issued a statement recommending no more than six teaspoons for women and nine teaspoons for men of added sugar in processed foods per day (Winslow and Wang 2009). Of particular concern is the glycemic index of sweeteners—or how quickly sweeteners raise one’s blood sugar level after consumption. While much of recent concern about added sugar focuses on high fructose corn syrup, other industries, including the honey and beet sugar industries, are likely to be affected by these new recommendations and consumer sentiment. The objective of this research is to measure young consumers’ values of natural sweeteners’ glycemic index and to relate this information to their personal risk-preferences and relationships. This research generates needed information for policy regarding refined sugars and natural sweeteners in processed foods. Our primary hypothesis is that the value of natural sweetener alternatives with different glycemic indexes varies with consumers’ health consciousness. Further, consumers’ valuations are influenced by their own underlying health-risk assessments and social and familial relationships. We hypothesize consumers’ economic risk preferences are correlated with their demand for natural sweetener alternatives. We also hypothesize social and family relationships effect the stability of individual preferences for natural sweeteners.