cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
MOESM9 of Fish with red fluorescent eyes forage more efficiently under dim, blue-green light conditions
Creators: name: Harant, Ulrike
name: Michiels, Nicolaas
Publisher: name: figshare
Year: 2019
Subjects: subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy

description: Additional file 9. R script used to analyze foraging success in the second (heavily shaded) experiment.
Hot subdwarf wind models with accurate abundances I. Hydrogen dominated stars HD 49798 and BD+18$^\circ\,$2647
Creators: name: Krticka, J.
name: Janik, J.
name: Krtickova, I.
name: Mereghetti, S.
name: Pintore, F.
name: Nemeth, P.
name: Kubat, J.
name: Vuckovic, M.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Hot subdwarfs are helium burning objects in late stages of their evolution. These stars can develop winds driven by light absorption in the lines of heavier elements. The wind strength depends on chemical composition which can significantly vary from star to star. We aim to understand the influence of metallicity on the strength of the winds of the hot hydrogen-rich subdwarfs HD 49798 and BD+18$^\circ\,$2647. We used UV and optical spectra to derive stellar parameters and abundances. For derived stellar parameters, we predicted wind structure (including mass-loss rates and terminal velocities) with our METUJE code. We derived effective temperature $T_\text{eff}=45\,900\,$K and mass $M=1.46\,M_\odot$ for HD 49798 and $T_\text{eff}=73\,000\,$K and $M=0.38\,M_\odot$ for BD+18$^\circ\,$2647. The abundances can be interpreted as a result of interplay between stellar evolution and diffusion. HD 49798 has a strong wind that does not allow for chemical separation and consequently it shows solar chemical composition modified by hydrogen burning. On the other hand, we did not find any wind in BD+18$^\circ\,$2647 and its abundances are therefore most likely affected by radiative diffusion. Accurate abundances do not lead to a significant modification of wind mass-loss rate for HD 49798, because the increase of the contribution of Fe and Ni to the radiative force is compensated by the decrease of the force due to other elements. The resulting wind mass-loss rate $\dot M=2.1\times10^{-9}\,M_\odot\,\text{yr}^{-1}$ predicts an X-ray light curve during the eclipse which closely agrees with observations. On the other hand, the absence of the wind in BD+18$^\circ\,$2647 for accurate abundances is a result of its peculiar chemical composition. Wind models with accurate abundances provide more reliable wind parameters, but the influence of abundances on the wind parameters is limited in many cases.
description: 11 pages, accepted for publication in Astronomy & Astrophysics
Additional file 13 of Investigating the impact of reference assembly choice on genomic analyses in a cattle breed
Creators: name: Audald Lloret-Villas
name: Bhati, Meenu
name: Kadri, Naveen Kumar
name: Fries, Ruedi
name: Pausch, Hubert
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 13 Figure S5: Selective sweeps on chromosome 22. Chromosome 22 region in ARS-UCD1.2 from 11,928,425 - 12,925,926 Mb and corresponding region on UOA_Angus_1 between 12,003,259 - 13,000,720 Mb with highlighted two selective sweep region. (A) Dot plot between the two assemblies, (B) SNP density per Kb (red line represents the average SNP density/chromosome), (C) Standardized coverage per 0.5 Kb, (D) Alternate allele frequency of each SNP (where each dot is per SNP).
A Dimension Formula for the Nucleus of a Veronese Variety
Creators: name: Gmainer, Johannes
name: Havlicek, Hans
Publisher: name: arXiv
Year: 2013
Subjects: subject: Algebraic Geometry (math.AG)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: The nucleus of a Veronese variety is the intersection of all its osculating hyperplanes. Various authors have given necessary and sufficient conditions for the nucleus to be empty. We present an explicit formula for the dimension of this nucleus for arbitrary characteristic of the ground field. As a corollary, we obtain a dimension formula for that subspace in the $t$-th symmetric power of a finite-dimensional vector space $V$ which is spanned by the powers $a^t$ with $\a\in\V$.
Disentanglement based Active Learning
Creators: name: Sreelatha, Silpa Vadakkeeveetil
name: Kappiyath, Adarsh
name: S, Sumitra
Publisher: name: arXiv
Year: 2019
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: We propose Disentanglement based Active Learning (DAL), a new active learning technique based on self-supervision which leverages the concept of disentanglement. Instead of requesting labels from human oracle, our method automatically labels the majority of the datapoints, thus drastically reducing the human labeling budget in Generative Adversarial Net (GAN) based active learning approaches. The proposed method uses Information Maximizing Generative Adversarial Nets (InfoGAN) to learn disentangled class category representations. Disagreement between active learner predictions and InfoGAN labels decides if the datapoints need to be human-labeled. We also introduce a label correction mechanism that aims to filter out label noise that occurs due to automatic labeling. Results on three benchmark datasets for the image classification task demonstrate that our method achieves better performance compared to existing GAN-based active learning approaches.
description: Published in International Joint Conference on Neural Networks (IJCNN), 2021
A Quantum Tweezer for Atoms
Creators: name: Diener, Roberto B.
name: Wu, Biao
name: Raizen, Mark G.
name: Niu, Qian
Publisher: name: arXiv
Year: 2002
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We propose a quantum tweezer for extracting a desired number of neutral atoms from a reservoir. A trapped Bose-Einstein condensate (BEC) is used as the reservoir, taking advantage of its coherent nature, which can guarantee a constant outcome. The tweezer is an attractive quantum dot, which may be generated by red-detuned laser light. By moving with certain speeds, the dot can extract a desired number of atoms from the BEC through Landau-Zener tunneling. The feasibility of our quantum tweezer is demonstrated through realistic and extensive model calculations.
description: 4 pages, 6 figures Revised version
Flax semilongus Fibiger 2011, new species
Creators: name: Fibiger, Michael
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Erebidae
Flax
Flax semilongus

description: Flax semilongus Fibiger, new species
(Plate 7, figure 1; male genit. plate 22, figure 3)
description: Published as part of Fibiger, Michael, 2011, Revision of the Micronoctuidae (Lepidoptera: Noctuoidea). Part 4, Taxonomy of the subfamilies Tentaxinae and Micronoctuinae, pp. 1-188 in Zootaxa 2842 (2842) on page 73, DOI: 10.11646/ZOOTAXA.2842.1.1, http://zenodo.org/record/10095402
Optimistic variants of single-objective bilevel optimization for evolutionary algorithms
Creators: name: Sharma, Anuraganand
Publisher: name: arXiv
Year: 2020
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Single-objective bilevel optimization is a specialized form of constraint optimization problems where one of the constraints is an optimization problem itself. These problems are typically non-convex and strongly NP-Hard. Recently, there has been an increased interest from the evolutionary computation community to model bilevel problems due to its applicability in the real-world applications for decision-making problems. In this work, a partial nested evolutionary approach with a local heuristic search has been proposed to solve the benchmark problems and have outstanding results. This approach relies on the concept of intermarriage-crossover in search of feasible regions by exploiting information from the constraints. A new variant has also been proposed to the commonly used convergence approaches, i.e., optimistic and pessimistic. It is called extreme optimistic approach. The experimental results demonstrate the algorithm converges differently to known optimum solutions with the optimistic variants. Optimistic approach also outperforms pessimistic approach. Comparative statistical analysis of our approach with other recently published partial to complete evolutionary approaches demonstrates very competitive results.
description: preprint: 15 pages, published: 20 pages
PARTICIPATION OF WOMEN AND CHILDREN IN AGRICULTURAL ACTIVITIESA MICRO LEVEL STUDY IN AN AREA OF BANGLADESH
Creators: name: Jaim, W.M. H.
name: Rahman, M.L
name: Jaim, W.M. H.
name: Rahman, M.L
Publisher: name: Unknown
Year: 1988
Subjects: Research and Development/Tech Change/Emerging Technologies

description: Women and children participate mostly in family farm activities particularly in livestock, activities rather than crop. The type of crop and livestock activities performed by women were found to be a bit different than those of children. Only from landless households, woman labour was hired out while child labour was hired out both from poor farmers and landless households. To increase income, the distress rural women need sufficient institutional supports like credit facilities along with training for production of various farm and non-farm products. Institutional support is also needed for marketing their products. While for the greater interest of the society, to encourage child education rather than participation in employment activities by the child, Programmes like Food for Education (like Food for Works) may be introduced as a subsidy particularly to those families from which child labour is hired out.
MOESM8 of Fish with red fluorescent eyes forage more efficiently under dim, blue-green light conditions
Creators: name: Harant, Ulrike
name: Michiels, Nicolaas
Publisher: name: figshare
Year: 2019
Subjects: subject: Neuroscience
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Science Policy

description: Additional file 8. R script used to analyze foraging success in the first (shaded) experiment.
Anomalous Magnetic Moments from Asymptotic Safety
Creators: name: Hiller, Gudrun
name: Hormigos-Feliu, Clara
name: Litim, Daniel F.
name: Steudtner, Tom
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The measurements of the muon and electron anomalous magnetic moments hint at physics beyond the standard model. We show why and how models inspired by asymptotic safety can explain deviations from standard model predictions naturally. Our setup features an enlarged scalar sector and Yukawa couplings between leptons and new vector-like fermions. Using the complete two-loop running of couplings, we observe a well-behaved high energy limit of models including a stabilization of the Higgs. We find that a manifest breaking of lepton universality beyond standard model Yukawas is not necessary to explain the muon and electron anomalies. We further predict the tau anomalous magnetic moment, and new particles in the TeV energy range whose signatures at colliders are indicated. With small CP phases, the electron EDM can be as large as the present bound.
description: 5 pages, 4 figures; v2: explanations expanded and references added, conclusions unchanged; match with published version
AN ECONOMIC STUDY OF INDEBTEDNESS OF THE CLASS IV EMPLOYEES OF BANGLADESH AGRICULTURAL UNIVERSITY
Creators: name: Rahman, M. Lutfor
name: Islam, Zahirul
name: Ali, Rafiqunnessa
name: Rahman, M. Lutfor
name: Islam, Zahirul
name: Ali, Rafiqunnessa
Publisher: name: Unknown
Year: 1988
Subjects: Research and Development/Tech Change/Emerging Technologies

description: The study was undertaken to study the nature and extent of indebtedness of the Class IV employees of Bangladesh Agricultural University. It was found that nearly two-thirds of them were indebted to one or more than one sources. Among the borrower-employees, about two-thirds borrowed from the University Provident Fund amounting to about one-third of the total loan amount. More than 50 percent of the loan amount was borrowed from private money lenders and the so called ‘cooperative and welfare-societies,’ charging an usurious interest rate ranging from 120 to 240 percent. The majority of the loanee-employees who borrowed from private money leaders and societies repaid only interest charges which amounted to more than 90 percent of their total borrowing. The overall loan repayment percentage was found to be less than 10 percent, thus piling an average amount of outstanding debt of more than Tk. 12,000. Lenders' characteristics show that about 60 percent of them were University employees operating money lending business mostly for the fellow employees of the University. Interest earning became their major source of income.
Additional file 12 of Investigating the impact of reference assembly choice on genomic analyses in a cattle breed
Creators: name: Audald Lloret-Villas
name: Bhati, Meenu
name: Kadri, Naveen Kumar
name: Fries, Ruedi
name: Pausch, Hubert
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 12 Figure S4: Selective sweeps on chromosome 13. Chromosome 13 region in ARS-UCD1.2 from 10,501,688 - 12,506,844 Mb and corresponding region on UOA_Angus_1 between 71,231,671 - 73,018,009 Mb with highlighted six selective sweep region from 11.5 Mb to 12 Mb. (A) Dot plot between the two assemblies, (B) SNP density per Kb (red line represents the average SNP density/chromosome), (C) Standardized coverage per 0.5 Kb, (D) Alternate allele frequency of each SNP (each dot is per SNP).
Efficient computation of matrix elements of generic Slater determinants
Creators: name: Rodríguez-Laguna, Javier
name: Robledo, Luis Miguel
name: Dukelsky, Jorge
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present an extension of the Löwdin strategy to find arbitrary matrix elements of generic Slater determinants. The new method applies to arbitrary number of fermionic operators, even in the case of a singular overlap matrix.
Flax micronesia Fibiger 2011, new species
Creators: name: Fibiger, Michael
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Erebidae
Flax
Flax micronesia

description: Flax micronesia Fibiger, new species
(Plate 7, figure 2; male genit. plate 22, figure 4)
description: Published as part of Fibiger, Michael, 2011, Revision of the Micronoctuidae (Lepidoptera: Noctuoidea). Part 4, Taxonomy of the subfamilies Tentaxinae and Micronoctuinae, pp. 1-188 in Zootaxa 2842 (2842) on page 75, DOI: 10.11646/ZOOTAXA.2842.1.1, http://zenodo.org/record/10095402
Topological Gaps in Quasi-Periodic Spin Chains: A Numerical and K-Theoretic Analysis
Creators: name: Liu, Yifei
name: Santos, Lea F.
name: Prodan, Emil
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Topological phases supported by quasi-periodic spin-chain models and their bulk-boundary principles are investigated by numerical and K-theoretic methods. We show that, for both the un-correlated and correlated phases, the operator algebras that generate the Hamiltonians are non-commutative tori, hence the quasi-periodic chains display physics akin to the quantum Hall effect in two and higher dimensions. The robust topological edge modes are found to be strongly shaped by the interaction and, generically, they have hybrid edge-localized and chain-delocalized structures. Our findings lay the foundations for topological spin pumping using the phason of a quasi-periodic pattern as an adiabatic parameter, where selectively chosen quantized bits of magnetization can be transferred from one edge of the chain to the other.
description: 23 figures
STATUS AND ECONOMIC EFFICIENCY OF FISH SEED MULTIPLICATION FARMS IN BANGLADESH
Creators: name: Islam, M. Serajul
name: Dewan, Somen
name: Islam, M. Serajul
name: Dewan, Somen
Publisher: name: Unknown
Year: 1988
Subjects: Research and Development/Tech Change/Emerging Technologies

description: The status and economic efficiency of Fish Seed Multiplication Farms are analysed based on production target and achievement, and net earnings of fish farms. Data were collected from government and private farms located in 10 different districts in Bangladesh. Most of the farms could not achieve the target of production due to some problems and constraints but all the farms, both government and private earned a reasonable profit.
HOW SHOULD THE MARKET ACTORS CHANGE THEIR BUSINESS MODELS AFTER TRADE LIBERALIZATION: A CASE STUDY FROM SWITZERLAND
Creators: name: Aouinait, Camille
name: Aouinait, Camille
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Trade liberalization
subject: swiss fruit production
subject: competitiveness
subject: prices

description: Since a few decades, both developed and developing countries are facing increasing burdens on environmental resources, institutional, political and economic changes. The liberalization is most seen as positive to enhance farmers and smallholders’ incomes at first. Switzerland is under pressure regarding the trade of commodities. The imported products have lower prices than indigenous products. This might induce a lower competitiveness of the sector. Therefore, the market dynamics could change and so the behavior of the market players; farmers, transformers, wholesalers and retailers.
GPRInvNet: Deep Learning-Based Ground Penetrating Radar Data Inversion for Tunnel Lining
Creators: name: Liu, Bin
name: Ren, Yuxiao
name: Liu, Hanchi
name: Xu, Hui
name: Wang, Zhengfang
name: Cohn, Anthony G.
name: Jiang, Peng
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Image and Video Processing (eess.IV)
subject: Geophysics (physics.geo-ph)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Physical sciences

description: A DNN architecture referred to as GPRInvNet was proposed to tackle the challenges of mapping the ground-penetrating radar (GPR) B-Scan data to complex permittivity maps of subsurface structures. The GPRInvNet consisted of a trace-to-trace encoder and a decoder. It was specially designed to take into account the characteristics of GPR inversion when faced with complex GPR B-Scan data, as well as addressing the spatial alignment issues between time-series B-Scan data and spatial permittivity maps. It displayed the ability to fuse features from several adjacent traces on the B-Scan data to enhance each trace, and then further condense the features of each trace separately. As a result, the sensitive zones on the permittivity maps spatially aligned to the enhanced trace could be reconstructed accurately. The GPRInvNet has been utilized to reconstruct the permittivity map of tunnel linings. A diverse range of dielectric models of tunnel linings containing complex defects has been reconstructed using GPRInvNet. The results have demonstrated that the GPRInvNet is capable of effectively reconstructing complex tunnel lining defects with clear boundaries. Comparative results with existing baseline methods also demonstrated the superiority of the GPRInvNet. For the purpose of generalizing the GPRInvNet to real GPR data, some background noise patches recorded from practical model testing were integrated into the synthetic GPR data to retrain the GPRInvNet. The model testing has been conducted for validation, and experimental results revealed that the GPRInvNet had also achieved satisfactory results with regard to the real data.
Noise and charge discreteness as ultimate limit for the THz operation of ultra-small electronic devices
Creators: name: Colomés, Enrique
name: Mateos, Javier
name: González, Tomás
name: Oriols, Xavier
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: To manufacture faster electron devices, the industry has entered into the nanoscale dimensions and Terahertz (THz) working frequencies. The discrete nature of the few electrons present simultaneously in the active region of ultra-small devices generate unavoidable fluctuations of the current at THz frequencies. The consequences of this noise remain unnoticed in the scientific community because its accurate understanding requires dealing with consecutive multi-time quantum measurements. Here, a modeling of the quantum measurement of the current at THz frequencies is introduced in terms of quantum (Bohmian) trajectories. With this new understanding, we develop an analytic model for THz noise as a function of the electron transit time and the sampling integration time, which finally determine the maximum device working frequency. The model is confirmed by either semi-classical or full-quantum time-dependent Monte Carlo simulations. All these results show that intrinsic THz noise increases unlimitedly when the volume of the active region decreases. All attempts to minimize the low signal-to-noise ratio of these ultra-small devices to get effective THz working frequencies are incompatible with the basic elements of the scaling strategy. One can develop THz electron devices, but they cannot have ultra-small dimensions. Or, one can fabricate ultra-small electron devices, but they cannot be used for THz working frequencies.
description: 37 pages and 10 figures
Dark propagation modes in optical lattices
Creators: name: Schiavoni, Michele
name: Sanchez-Palencia, Laurent
name: Carminati, Francois-Regis
name: Renzoni, Ferruccio
name: Grynberg, Gilbert
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We examine the stimulated light scattering onto the propagation modes of a dissipative optical lattice. We show that two different pump-probe configurations may lead to the excitation, via different mechanisms, of the same mode. We found that in one configuration the scattering on the propagation mode results in a resonance in the probe transmission spectrum while in the other configuration no modification of the scattering spectrum occurs, i.e. the mode is dark. A theoretical explanation of this behaviour is provided.
On embedded products of Grassmannians
Creators: name: Havlicek, Hans
name: Zanella, Corrado
Publisher: name: arXiv
Year: 2013
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 51M35

description: Let $Γ'$ and $Γ$ be two Grassmannians. The standard embedding $ϕ:Γ'\timesΓ\to \bar{P}$ is obtained by combining the Plücker and Segre embeddings. Given a further embedding $η: Γ'\timesΓ\to P'$, we find a sufficient condition for the existence of $α\in Aut(Γ)$ and of a collineation $ψ: \bar{P} \to P'$ such that $η=({\rm id}_{Γ'}\timesα)ϕψ$.
Additional file 1 of Linking changes of forage production and digestibility with grassland community assembly under nitrogen enrichment
Creators: name: Lü, Xiao-Tao
name: Zhuo-Yi Liu
name: Sistla, Seeta
name: Guo-Jiao Yang
name: Hu, Yan-Yu
name: Zhang, Zhi-Wei
name: Shuang-Li Hou
name: Ding, Cong
Publisher: name: figshare
Year: 2021
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: Additional file 1 Table S1. The number and identities of species being lost and gained in response to nitrogen addition under both unmown (control vs N) and mown (M vs NM) conditions in a temperate grassland. Figure S1. The N-induced changes of species loss and gain under unmown (a) and mown (b) conditions. Significance levels of the changes different from 0 were assessed using t-tests . *, P < 0.05; **, P < 0.01.
Is a Classification Procedure Good Enough? A Goodness-of-Fit Assessment Tool for Classification Learning
Creators: name: Zhang, Jiawei
name: Ding, Jie
name: Yang, Yuhong
Publisher: name: arXiv
Year: 2019
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: In recent years, many non-traditional classification methods, such as Random Forest, Boosting, and neural network, have been widely used in applications. Their performance is typically measured in terms of classification accuracy. While the classification error rate and the like are important, they do not address a fundamental question: Is the classification method underfitted? To our best knowledge, there is no existing method that can assess the goodness-of-fit of a general classification procedure. Indeed, the lack of a parametric assumption makes it challenging to construct proper tests. To overcome this difficulty, we propose a methodology called BAGofT that splits the data into a training set and a validation set. First, the classification procedure to assess is applied to the training set, which is also used to adaptively find a data grouping that reveals the most severe regions of underfitting. Then, based on this grouping, we calculate a test statistic by comparing the estimated success probabilities and the actual observed responses from the validation set. The data splitting guarantees that the size of the test is controlled under the null hypothesis, and the power of the test goes to one as the sample size increases under the alternative hypothesis. For testing parametric classification models, the BAGofT has a broader scope than the existing methods since it is not restricted to specific parametric models (e.g., logistic regression). Extensive simulation studies show the utility of the BAGofT when assessing general classification procedures and its strengths over some existing methods when testing parametric classification models.
The feasibility of index-based insurance as a risk management tool in Central Asia
Creators: name: Grigoreva, Diana
name: Bobojonov, Ihtiyor
name: Aw-Hassan, Aden
name: Biradar, Chandrashekar
name: Nurbekov, Aziz
name: Grigoreva, Diana
name: Bobojonov, Ihtiyor
name: Aw-Hassan, Aden
name: Biradar, Chandrashekar
name: Nurbekov, Aziz
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: Risk management
subject: crop insurance
subject: weather Index-based insurance
subject: climate risk
subject: irrigation water
subject: NDVI
subject: crop yield
subject: Central Asia

description: This study investigates suitable several indexes, as well as risk coping potential of index-based insurance in Central Asia. This study discusses the challenges of index selection for irrigated systems and compares the results with rainfed systems. For this purpose, suitability and impact of area-yield, irrigation water intake at regional level, as well as remote sensing based indexes are analyzed. The results of the study show that selection of index for the irrigated systems is more complex than rainfed systems and more caution is required in order to minimize the basis risk.
On physical interpretations of the reference transit radius of gas-giant exoplanets
Creators: name: Heng, Kevin
Publisher: name: arXiv
Year: 2019
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: Two theoretical quandaries involving transmission spectra of gas-giant exoplanets are elucidated. When computing the transit radius as a function of wavelength, one needs to specify a reference transit radius corresponding to a reference pressure. Mathematically, the reference transit radius is a constant of integration that originates from evaluating an integral for the transit depth. Physically, its interpretation has been debated in the literature. Jordan & Espinoza (2018) suggested that the optical depth is discontinuous across, and infinite below, the reference transit radius. Betremieux & Swain (2017, 2018) interpreted the spherical surface located at the reference transit radius to represent the boundary associated with an opaque cloud deck. It is demonstrated that continuous functions for the optical depth may be found. The optical depth below and at the reference transit radius need not take on special or divergent values. In the limit of a spatially uniform grey cloud with constant opacity, the transit chord with optical depth on the order of unity mimics the presence of a "cloud top". While the surface located at the reference pressure may mimic the presence of grey clouds, it is more natural to include the effects of these clouds as part of the opacity function because the cloud opacity may be computed from first principles. It is unclear how this mimicry extends to non-grey clouds comprising small particles.
description: Accepted by MNRAS. 7 pages, 2 figures
Quasiclassical and Statistical Properties of Fermion Systems
Creators: name: Grigorescu, M.
name: Baylis, W. E.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A quasiclassical correspondent for the fermion degrees of freedom is obtained by using a time-dependent variational principle with Grassmann coherent states as trial functions. In the real parametrization provided by the canonical coordinates, these states satisfy a closure relationship, and this is used to calculate the partition function at finite temperature. The particular example considered here consists of a many-fermion system in a quantum double-well. Entanglement between the one-particle orbital states leads to deviations from the normal Fermi-Dirac distribution. This deviation is reflected in the dependence of the chemical potential on concentration. In the physical example of two adjacent CuO planes in a high-Tc superconductor, the dependence is suggestive of the pseudogap observed at temperatures T>Tc.
description: 19 pages, RevTex, two postscript figures
Design of tunable acoustic metamaterials with periodic piezoelectric microstructure
Creators: name: Bacigalupo, Andrea
name: De Bellis, Maria Laura
name: Misseroni, Diego
Publisher: name: arXiv
Year: 2019
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: An innovative special class of tunable periodic metamaterials is designed, suitable for realising high-performance acoustic filters. The metamaterial is made up of a phononic crystal coupled to local resonators. Such local resonators consist of masses enclosed into piezoelectric rings, shunted by either dissipative or non-dissipative electrical circuit. By tuning the impedance/admittance of such electrical circuits, it is possible to fully adjust the constitutive properties of the shunting piezoelectric material. This feature paves the way for unconventional behaviours, well beyond the capabilities achievable with classical materials. It follows that the acoustic properties of the periodic metamaterial can be adaptively modified, in turn, opening new possibilities for the control of pass and stop bands. By exploiting a generalization of the Floquet-Bloch theory, the in-plane free wave propagation in the tunable metamaterial is investigated, by varying a certain tuning parameter, to show the efficiency of the proposed shunting piezoelectric system as a wave propagation control device. Particular attention is devoted to the determination of the in-plane constitutive equations of the shunting piezoelectric phase in the transformed Laplace space. Finally, broad design directions of tunable acoustic filters aiming to a changing performance requirement in real-time, is also provided.
description: 36 pages, 16 figures
Additional file 2 of Capitalizing on facilitators and addressing barriers when implementing active tuberculosis case-finding in six districts of Ho Chi Minh City, Vietnam: a qualitative study with key stakeholders
Creators: name: Biermann, Olivia
name: Tran, Phuong Bich
name: Forse, Rachel Jeanette
name: Vo, Luan Nguyen Quang
name: Codlin, Andrew James
name: Viney, Kerri
name: Caws, Maxine
name: Lönnroth, Knut
Publisher: name: figshare
Year: 2021
Subjects: subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: Computational Biology

description: Additional file 2. Interview guides
Static response and Love numbers of Schwarzschild black holes
Creators: name: Hui, Lam
name: Joyce, Austin
name: Penco, Riccardo
name: Santoni, Luca
name: Solomon, Adam R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We derive the quadratic action for the physical degrees of freedom of massless spin-0, spin-1, and spin-2 perturbations on a Schwarzschild--(A)dS background in arbitrary dimensions. We then use these results to compute the static response of asymptotically flat Schwarzschild black holes to external fields. Our analysis reproduces known facts about black hole Love numbers, in particular that they vanish for all types of perturbation in four spacetime dimensions, but also leads to new results. For instance, we find that neutral Schwarzschild black holes polarize in the presence of an electromagnetic background in any number of spacetime dimensions except four. Moreover, we calculate for the first time black hole Love numbers for vector-type gravitational perturbations in higher dimensions and find that they generically do not vanish. Along the way, we shed some light on an apparent discrepancy between previous results in the literature, and clarify some aspects of the matching between perturbative calculations of static response on a Schwarzschild background and the point-particle effective theory
description: 78 pages, 1 figure v2: minor corrections, v3: minor corrections, v4: fixed minor error in spin-2 matching
A Unified Finite Strain Theory for Membranes and Ropes
Creators: name: Fries, Thomas-Peter
name: Schöllhammer, Daniel
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Numerical Analysis (math.NA)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: The finite strain theory is reformulated in the frame of the Tangential Differential Calculus (TDC) resulting in a unification in a threefold sense. Firstly, ropes, membranes and three-dimensional continua are treated with one set of governing equations. Secondly, the reformulated boundary value problem applies to parametrized and implicit geometries. Therefore, the formulation is more general than classical ones as it does not rely on parametrizations implying curvilinear coordinate systems and the concept of co- and contravariant base vectors. This leads to the third unification: TDC-based models are applicable to two fundamentally different numerical approaches. On the one hand, one may use the classical Surface FEM where the geometry is discretized by curved one-dimensional elements for ropes and two-dimensional surface elements for membranes. On the other hand, it also applies to recent Trace FEM approaches where the geometry is immersed in a higher-dimensional background mesh. Then, the shape functions of the background mesh are evaluated on the trace of the immersed geometry and used for the approximation. As such, the Trace FEM is a fictitious domain method for partial differential equations on manifolds. The numerical results show that the proposed finite strain theory yields higher-order convergence rates independent of the numerical methodology, the dimension of the manifold, and the geometric representation type.
description: Research article has been submitted to Computer Methods in Applied Mechanics and Engineering
ÖKONOMISCHE MODELLIERUNG VON POLITIKANSÄTZEN ZUR THG-VERMEIDUNG IM AGRARSEKTOR – AUSWIRKUNGEN VON LACHGAS- UND METHANMINDERUNGSPOLITIKEN AUF BETRIEBSEBENE IN DEUTSCHLAND
Creators: name: Braun, Julian
name: Kirschke, Dieter
name: Offermann, Frank
name: Braun, Julian
name: Kirschke, Dieter
name: Offermann, Frank
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agricultural and Food Policy
subject: Environmental Economics and Policy
subject: Political Economy
subject: Ökonomische Modellierung
subject: Politikfolgenabschätzung
subject: THG-Vermeidungsstrategien

description: Vor dem Hintergrund des immer stärkeren Einbezugs des Agrarsektors in die Klimaschutzpolitik, gewinnen THG-Minderungsstrategien im Agrarbereich erkennbar an Relevanz. Daher werden in der vorliegenden Arbeit drei Teilziele verfolgt. 1.: Die Entwicklung eines spezifischen THG-Moduls auf landwirtschaftlicher Betriebsebene und die Implementierung in ein statisch komparatives Betriebsgruppenmodell (FARMIS). 2.: Die Ausarbeitung eines Validierungsprozesses des implementierten THG-Moduls. 3.: Die Anwendung der Kosten-Nutzen-Analyse für Umweltpolitiken auf klimapolitische Instrumente. Folglich wird es möglich, die Wirksamkeit der aktuellen Klimapolitik und alternative klimapolitische Instrumente im deutschen Agrarsektor zu Vergleichen, zu bewerten und Aussagen über die ökonomische Vorzüglichkeit der eingesetzten politischen Maßnahmen abzuleiten.
Local thermal fluctuations in current-carrying superconducting nanowires
Creators: name: Semenov, Alexej D.
name: Sidorova, Mariia
name: Skvortsov, Mikhail A.
name: Kuzmin, Artem
name: Ilin, Konstantin
name: Siegel, Michael
Publisher: name: arXiv
Year: 2019
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We analyze the effect of different types of fluctuations in internal electron energy on the rates of dark and photon counts in straight current-carrying superconducting nanowires. Dark counts appear due to thermal fluctuations in statistically independent cells with the effective size of the order of the coherence length; each count corresponds to an escape from the equilibrium state through an appropriate saddle point. For photon counts, spectral broadening of the deterministic cut off in the spectra of the detection efficiency can be phenomenologically explained by local thermal fluctuations in the electron energy within cells with the same effective volume as for dark counts.
On quantum effects near the liquid-vapor transition in helium
Creators: name: Müser, Martin H.
name: Luijten, Erik
Publisher: name: arXiv
Year: 2001
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The liquid-vapor transition in He-3 and He-4 is investigated by means of path-integral molecular dynamics and the quantum virial expansion. Both methods are applied to the critical isobar and the critical isochore. While previous path-integral simulations have mainly considered the lambda transition and superfluid regime in He-4, we focus on the vicinity of the critical point and obtain good agreement with experimental results for the molar volume and the internal energy down to subcritical temperatures. We find that an effective classical potential that properly describes the two-particle radial distribution function exhibits a strong temperature dependence near the critical temperature. This contrasts with the behavior of essentially classical systems like xenon, where the effective potential is independent of temperature. It is conjectured that, owing to this difference in behavior between classical and quantum-mechanical systems, the crossover behavior observed for helium in the vicinity of the critical point differs qualitatively from that of other simple liquids.
Additional file 1 of Capitalizing on facilitators and addressing barriers when implementing active tuberculosis case-finding in six districts of Ho Chi Minh City, Vietnam: a qualitative study with key stakeholders
Creators: name: Biermann, Olivia
name: Tran, Phuong Bich
name: Forse, Rachel Jeanette
name: Vo, Luan Nguyen Quang
name: Codlin, Andrew James
name: Viney, Kerri
name: Caws, Maxine
name: Lönnroth, Knut
Publisher: name: figshare
Year: 2021
Subjects: subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: Computational Biology

description: Additional file 1. COnsolidated criteria for REporting Qualitative research (COREQ) checklist
Limits of noise squeezing in Kerr effect
Creators: name: Bajer, J.
name: Miranowicz, A.
name: Tanas, R.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: It is well known that the optical Kerr effect can be a source of highly squeezed light, however the analytical limit of the noise suppression has not been found yet. The process is reconsidered and an analytical estimation of the optimal quadrature noise level is presented. The validity of the new scaling law is checked numerically and analytically.
description: 4 pages, 3 figures
Additional file 2 of Association between water and sanitation and soil-transmitted helminthiases: Analysis of the Brazilian National Survey of Prevalence (2011–2015)
Creators: name: Poague, Kasandra Isabella Helouise Mingoti
name: Sueli Aparecida Mingoti
name: Heller, Léo
Publisher: name: figshare
Year: 2021
Subjects: subject: Space Science
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: 60506 Virology

description: Description of the National Survey on the Prevalence of Schistosomiasis mansoni and Soil-transmitted helminth infections (2011-2015). Detailed description of the National Survey.
Theory of Quantum Annealing of an Ising Spin Glass
Creators: name: Santoro, Giuseppe E.
name: Martonak, Roman
name: Tosatti, Erio
name: Car, Roberto
Publisher: name: arXiv
Year: 2002
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Probing the lowest energy configuration of a complex system by quantum annealing was recently found to be more effective than its classical, thermal counterpart. Comparing classical and quantum Monte Carlo annealing protocols on the random two-dimensional Ising model we confirm the superiority of quantum annealing relative to classical annealing. We also propose a theory of quantum annealing, based on a cascade of Landau-Zener tunneling events. For both classical and quantum annealing, the residual energy after annealing is inversely proportional to a power of the logarithm of the annealing time, but the quantum case has a larger power which makes it faster
description: RevTex, 8 pages, 3 figures
Public Distribution System vs. Market: Analysis of Staple Food Consumption in India Using QUAIDS with Rationing
Creators: name: Kozicka, Marta
name: Kalkuhl, Matthias
name: Weber, Regine
name: Kozicka, Marta
name: Kalkuhl, Matthias
name: Weber, Regine
Publisher: name: Unknown
Year: 2015
Subjects: subject: Demand and Price Analysis
subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: QUAIDS with rationing
subject: Targeted Public Distribution System
subject: India
subject: food subsidy

description: The current study explains the impact of the Targeted Public Distribution System (TPDS) in India on total staple food consumption. The study is based on the 68th round of the National Sample Survey of Household Consumer Expenditure. First, we show that under-purchase from TPDS is due to the supply constraints. Next, we estimate a three-­stage demand system for staple foods. In the third stage, we estimate a Quadratic Almost Ideal Demad System with Rationing, where the TPDS grains are treated as strictly rationed goods and the rest of the consumption goods in the system are the market consumed staples.
Iron Emission Lines from Extended X-ray Jets in SS 433: Reheating of Atomic Nuclei
Creators: name: Migliari, Simone
name: Fender, Rob
name: Mendez, Mariano
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Powerful relativistic jets are among the most ubiquitous and energetic observational consequences of accretion around supermassive black holes in active galactic nuclei and neutron stars and stellar-mass black holes in x-ray binary (XRB) systems. But despite more than three decades of study, the structure and composition of these jets remain unknown. Here we present spatially resolved x-ray spectroscopy of arc second-scale x-ray jets from the XRB SS 433 analized with the Chandra advanced charge-coupled device imaging spectrometer. These observations reveal evidence for a hot continuum and Doppler-shifted iron emission lines from spatially resolved regions. Apparently, in situ reheating of the baryonic component of the jets takes place in a flow that moves with relativistic bulk velocity even more than 100 days after launch from the binary core.
MOESM4 of Fish with red fluorescent eyes forage more efficiently under dim, blue-green light conditions
Creators: name: Harant, Ulrike
name: Michiels, Nicolaas
Publisher: name: figshare
Year: 2019
Subjects: subject: Physiology
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy

description: Additional file 4. Pilot study: feeding strikes in Tripterygion delaisi.
Explaining total factor productivity growth in German dairy farming: A Malmquist Index Analysis
Creators: name: Allendorf, Joseph
name: Allendorf, Joseph
Publisher: name: Unknown
Year: 2015
Subjects: subject: Farm Management
subject: Production Economics
subject: Productivity Analysis
subject: Total factor productivity
subject: Malmquist-Index
subject: dairy farms
subject: DEA

description: This study assesses the total factor productivity (TFP) growth for a sample of North-Rhine Westphalian dairy farms over the periods 2007-2014 and provides first-hand evidence of productivity growth of these farms before the milk market is liberalised. As first step a non-parametric Malmquist approach is therefore used to identify the productivity indices. The second step includes a panel regression to shed light on determinants of TFP growth. Expected results will show how TFP growth is influenced by their core components and which exogenous drivers affect the productivity growth.