cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Effect of variety and weeding regime on the yield components and yield of Aus rice
Creators: name: Mondal, B.
name: Sarkar, M.A.R.
name: Paul, S.K.
name: Zaman, F.
name: Mondal, B.
name: Sarkar, M.A.R.
name: Paul, S.K.
name: Zaman, F.
Publisher: name: Unknown
Year: 2013
Subjects: subject: Crop Production/Industries
subject: Aus rice
subject: Variety
subject: Weeding regime
subject: Yield

description: A field experiment was carried out at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh, during the period from April to July 2012 to study the effect of variety and weeding regime on the yield components and yield of Aus rice. The experiment was laid out in a randomized complete block design with three replications. The experimental treatments comprised four varieties viz. BR 26, BRRI dhan27, BRRI dhan48 and Pariza; and five weeding treatments viz. no weeding, one hand weeding at 20 DAS(Days after sowing), two hand weeding at 20 DAS and 30 DAS, three hand weeding at 20, 30 and 40 DAS and weed free. Here broadcasting method of planting was used. Results revealed that varieties had significant effect on plant height, number of total tillers hill-1, number of effective tillers hill-1, number of non-effective tillers hill-1, number of grains panicle-1, number of unfilled spikelets panicle-1, 1000-grain weight, grain yield, straw yield, biological yield and harvest index. Grain yield was the highest in BRRI dhan48. Weeding regime had also significant effect on all the studied crop parameters except 1000-grain weight. The highest grain yield was obtained from weed free condition followed by three, two and one weeding conditions. Interaction between variety and weeding regime significantly influenced all the studied crop parameters except 1000-grain weight and harvest index. In interaction it was observed that the highest grain yield was obtained from BRRI dhan48 under two weeding condition.
Waveform of gravitational waves in the general parity-violating gravities
Creators: name: Zhao, Wen
name: Zhu, Tao
name: Qiao, Jin
name: Wang, Anzhong
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: As an extension of our previous work [J.Qiao, T.Zhu, W.Zhao & A.Wang, arXiv:1909.03815], in this article, we calculate the effects of parity violation on gravitational-wave (GW) waveforms during their propagation in the most general parity-violating gravities, including Chern-Simons modified gravity, ghost-free scalar-tensor gravity, symmetric teleparallel equivalence of GR theory, Hořava-Lifshitz gravity and so on. For this purpose, we consider the GWs generated by the coalescence of compact binaries and concentrate on the imprints of the parity violation in the propagation of GWs. With a unified description of GW in the theories of parity-violating gravity, we study the effects of velocity and amplitude birefringence on the GW waveforms. Decomposing the GWs into the circular polarization modes, the two birefringence effects exactly correspond to the modifications in phase and amplitude of GW waveforms respectively. We find that, for each circular polarization mode, the amplitude, phase and velocity of GW can be modified by both the parity-violating terms and parity-conserving terms in gravity. Therefore, in order to test the parity symmetry in gravity, we should compare the difference between two circular polarization modes, rather than measuring an individual mode. Combining two circular modes, we obtain the GW waveforms in the Fourier domain, and obtain the deviations from those in General Relativity. The GW waveforms derived in this paper are also applicable to the theories of parity-conserving gravity, which have the modified dispersion relations (e.g. massive gravity, double special relativity theory, extra-dimensional theories, etc), or/and have the modified friction terms (e.g. nonlocal gravity, gravitational theory with time-dependent Planck mass, etc).
description: 13 pages, no fig, no table. PRD accepted. arXiv admin note: text overlap with arXiv:1909.03815
Photon polarization in radiative B decays
Creators: name: Gronau, Michael
name: Pirjol, Dan
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We study decay distributions in B -> K pi pi gamma, combining contributions from several overlapping resonances in a K pi pi mass range near 1400 MeV, (1^+) K_1(1400), (2^+) K^*_2(1430) and (1^-) K^*(1410). A method is proposed for using these distributions to determine a photon polarization parameter in the effective radiative weak Hamiltonian. This parameter is measured through an up-down asymmetry of the photon direction relative to the K pi pi decay plane. We calculate a dominant up-down asymmetry of 0.33 +- 0.05 from the K1(1400) resonance, which can be measured with about 10^8 B B-bar pairs, thus providing a new test for the Standard Model and a probe for some of its extensions.
description: 22 pages, 3 figures, version to appear in Phys. Rev. D
Minimal bricks
Creators: name: Norine, Serguei
name: Thomas, Robin
Publisher: name: arXiv
Year: 2019
Subjects: subject: Combinatorics (math.CO)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: A brick is a 3-connected graph such that the graph obtained from it by deleting any two distinct vertices has a perfect matching. A brick is minimal if for every edge e the deletion of e results in a graph that is not a brick. We prove a generation theorem for minimal bricks and two corollaries: (1) for n>4, every minimal brick on 2n vertices has at most 5n-7 edges, and (2) every minimal brick has at least three vertices of degree three.
description: 10 pages, 2 figures. This version fixes an error kindly pointed to us by P. A. Fabres, N. Kothari and M. H. de Carvalho
Willingness to Pay for Quality Attributes of Fresh Beef Implications on the Retail Marketing
Creators: name: Berges, Miriam
name: Casellas, Karina
name: Rodriguez, Ricardo
name: Errea, Damian
name: Berges, Miriam
name: Casellas, Karina
name: Rodriguez, Ricardo
name: Errea, Damian
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agricultural Finance
subject: Food Consumption/Nutrition/Food Safety
subject: Marketing
subject: FOS: Economics and business

description: In recent decades, the demand for food worldwise has undergone significant changes that have highlighted the issue of the quality and safety of food consumed. After international food crisis associated with consumption of fresh meat, consumer concerns about the quality and safety of these products has been increased. However, the atrribtures for assessing the safety of fresh meat consumption are not firectly observable; they are credence attributes. The aim of this work is to investigate consumers' preceptions of safety in Argentina and identify factors that help expalin consumers' willingness to pay for different attributes related safety of the beef products, including, a hypothetical hygiene certification in handling and retailing. The results indicate a positive willingness to pay for fresh meat atrributes such as personalized attention in a butcher counter, the presense of a "safety certification" in the place of purchase and the bright red color on the product.
MOESM2 of Sarcomatoid carcinoma presenting as cancers of unknown primary: a clinicopathological portrait
Creators: name: Huey, Ryan
name: Makawita, Shalini
name: Lianchun Xiao
name: Matamoros, Aurelio
name: Jeannelyn Estrella
name: Overman, Michael
name: Varadhachary, Gauri
name: Kanwal Raghav
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Cancer

description: Additional file 2. Response to First Line Chemotherapy: First-line chemotherapy and reponse for 13 evaluable patients. 77% (10/13) patients had progressive disease.
A study and tests for the age range at risk to Locomotive SyndromeDisease by standingup test: A case study of sample group inBangkok Metropolitan Region
Creators: name: Prachuab Klomjit
name: Chanpen Anurattananon
name: Alongkorn Chatmuangpak
name: Chalalai Wongwian
Publisher: name: Research and Development Office, Prince of Songkla University
Year: 2021
Subjects: gender
age range
standing up-sitting
Locomotive Syndrome
binary logistic regression

description: Songklanakarin Journal of Science and Technology (SJST), 43, 2, 478-484
Non-perturbative quenched propagator beyond the infrared approximation
Creators: name: Sanchez-Guillen, J.
name: Vazquez, R. A.
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A new approach to the quenched propagator in QED beyond the IR limit is proposed. The method is based on evolution equations in the proper time.
description: 13 pages, 1 figure; Misprint on reference corrected
Paravelia manausana Polhemus & Polhemus 1984
Creators: name: Moreira, Felipe Ferraz Figueiredo
name: Barbosa, Julianna Freires
name: Ribeiro, José Ricardo Inacio
name: Alecrim, Viviani Pereira
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Veliidae
Paravelia
Paravelia manausana

description: Paravelia manausana Polhemus & Polhemus, 1984
Geographical distribution: Venezuela, Brazil, Ecuador, Peru and Bolivia.
Distribution in Brazil: North Region (AM) (Polhemus & Polhemus 1984b; Polhemus & Polhemus 1991).
description: Published as part of Moreira, Felipe Ferraz Figueiredo, Barbosa, Julianna Freires, Ribeiro, José Ricardo Inacio & Alecrim, Viviani Pereira, 2011, Checklist and distribution of semiaquatic and aquatic Heteroptera (Gerromorpha and Nepomorpha) occurring in Brazil 2958, pp. 1-74 in Zootaxa 2958 (1) on page 21, DOI: 10.11646/zootaxa.2958.1.1, http://zenodo.org/record/5281851
Waveform of gravitational waves in the ghost-free parity-violating gravities
Creators: name: Qiao, Jin
name: Zhu, Tao
name: Zhao, Wen
name: Wang, Anzhong
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Gravitational waves (GWs) provide an excellent opportunity to test the gravity in the strong gravitational fields. In this article, we calculate the waveform of GWs, produced by the coalescence of compact binaries, in an extension of the Chern-Simons gravity by including higher derivatives of the coupling scalar field. By comparing the two circular polarization modes, we find the effects of amplitude birefringence and velocity birefringence of GWs in their propagation caused by the parity violation in gravity, which are explicitly presented in the GW waveforms by the amplitude and phase modifications respectively. Combining the two modes, we obtain the GW waveforms in the Fourier domain, and find that the deviations from those in General Relativity are dominated by effects of velocity birefringence of GWs. In addition, we also map the effects of the parity violation on the waveform onto the parameterized post-Einsteinian (PPE) framework and identify explicitly the PPE parameters.
description: 8 pages, PRD accepted
Formal and informal insurance: experimental evidence from Ethiopia
Creators: name: Berhane, Guush
name: Dercon, Stefan
name: Hill, Ruth
name: Taffesse, Alemayehu
name: Berhane, Guush
name: Dercon, Stefan
name: Hill, Ruth
name: Taffesse, Alemayehu
Publisher: name: Unknown
Year: 2015
Subjects: subject: International Development
subject: Risk and Uncertainty
subject: index insurance
subject: risk sharing institutions
subject: impact

description: We examine the impact of formal insurance and informal risk-sharing institutions on welfare, and the complementarity between these forms of formal and informal insurance. As in a number of other studies, formal rainfall index insurance was offered to farmers. However in this study support to local risk sharing institutions—iddirs—was also provided to strengthen the extent to which they were able to insure members against idiosyncratic shocks. Access to insurance and support to iddirs was randomized across villages during two agricultural seasons. Results show that formal insurance has a significant impact on encouraging productive investments, particularly investments in fertilizer, replicating the results found in Ghana in Karlan et al (2013). Strengthening risk-sharing through iddirs increases formal insurance demand (consistent with the results in Dercon et al 2013) and some welfare outcomes, but does not cause insurance to have any additional effect on productive outcomes. There is also some evidence that strengthening risk-sharing through local institutions reduces individual bilateral transfers.
Non-Markovian Quantum Exceptional Points
Creators: name: Lin, Jhen-Dong
name: Kuo, Po-Chen
name: Lambert, Neill
name: Miranowicz, Adam
name: Nori, Franco
name: Chen, Yueh-Nan
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Exceptional points (EPs) are singularities in the spectra of non-Hermitian operators, where eigenvalues and eigenvectors coalesce. Recently, open quantum systems have been increasingly explored as EP testbeds due to their natural non-Hermitian nature. However, existing works mostly focus on the Markovian limit, leaving a gap in understanding EPs in the non-Markovian regime. In this work, we address this gap by proposing a theoretical framework based on two numerically exact descriptions of non-Markovian dynamics: the pseudomode mapping and the hierarchical equations of motion. The proposed framework enables conventional spectral analysis for EP identification, establishing direct links between EPs and dynamic manifestations in open systems, such as non-exponential decays and enhanced sensitivity to external perturbations. We unveil pure non-Markovian EPs that are unobservable in the Markovian limit. Remarkably, the EP aligns with the Markovian-to-non-Markovian transition, and the EP condition is adjustable by modifying environmental spectral properties. Moreover, we show that structured environments can elevate EP order, thereby enhancing the system's sensitivity. These findings lay a theoretical foundation and open new avenues for non-Markovian reservoir engineering and non-Hermitian physics.
description: 10+5 pages, 2 figures
Rejuvenation in the Random Energy Model
Creators: name: Sales, Marta
name: Bouchaud, Jean-Philippe
Publisher: name: arXiv
Year: 2001
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We show that the Random Energy Model has interesting rejuvenation properties in its frozen phase. Different `susceptibilities' to temperature changes, for the free-energy and for other (`magnetic') observables, can be computed exactly. These susceptibilities diverge at the transition temperature, as (1-T/T_c)^-3 for the free-energy.
description: 9 pages, 1 eps figure
Nonintegrability and thermalization of one-dimensional diatomic lattices
Creators: name: Fu, Weicheng
name: Zhang, Yong
name: Zhao, Hong
Publisher: name: arXiv
Year: 2019
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Nonintegrability is a necessary condition for the thermalization of a generic Hamiltonian system. In practice, the integrability can be broken in various ways. As illustrating examples, we numerically studied the thermalization behaviors of two types of one-dimensional (1D) diatomic chains in the thermodynamic limit. One chain was the diatomic Toda chain whose nonintegrability was introduced by unequal masses. The other chain was the diatomic Fermi-Pasta-Ulam-Tsingou-$β$ chain whose nonintegrability was introduced by quartic nonlinear interaction. We found that these two different methods of destroying the integrability led to qualitatively different routes to thermalization, but the thermalization time, $T_{eq}$, followed the same law; $T_{eq}$ was inversely proportional to the square of the perturbation strength. This law also agreed with the existing results of 1D monatomic lattices. All these results imply that there is a universal law of thermalization that is independent of the method of breaking integrability.
Edge beads removal in a photolithography process througha polymer mold
Creators: name: Torino, Stefania
name: Shomnath Bhowmick
name: Mario Iodice, Maurizio Casalino
name: Tufano, Vitaliano
name: Selvaggi, Danilo
name: Coppola, Giuseppe
name: Gioffr?, Mariano
Publisher: name: Research and Development Office, Prince of Songkla University
Year: 2021
Subjects: photolithography
soft lithography
edge bead remover
photoresist

description: Songklanakarin Journal of Science and Technology (SJST), 43, 2, 485-491
Scalarized charged black holes with scalar mass term
Creators: name: Zou, De-Cheng
name: Myung, Yun Soo
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the scalarized charged black holes in the Einstein-Maxwell-Scalar (EMS) theory with scalar mass term. In this work, the scalar mass term is chosen to be $m^2_ϕ=α/β$, where $α$ is a coupling parameter and $β$ is a mass-like parameter. It turns out that any scalarized charged black holes are not allowed for the case of $β\le 4.4$ with $q=0.7(M=0.5,Q=0.35)$ because this case implies the stable Reissner-Nodström (RN) black holes. In the massless limit of $β\to \infty$, one recovers the case of the EMS theory. We note that the unstable RN black hole implies the appearance of scalarized charged black holes. The other unstable case of $β>4.4$ with $q=0.7$ allows us to obtain the $n=0,1,2,\cdots$ scalarized charged black holes for $α(β)\ge α_{\rm th}(β)$ where $α_{\rm th}(β)$ represents the threshold of instability for the RN black hole. Furthermore, it is shown that the $n=0$ black hole is stable against radial perturbations, while the $n=1$ black hole is unstable. This stability result is independent of the mass parameter $β$.
description: 18 pages, 8 figures, version to appear in PRD
Quantum phase transitions in the J-J' Heisenberg and XY spin-1/2 antiferromagnets on square lattice: Finite-size scaling analysis
Creators: name: Tomczak, Piotr
name: Richter, Johannes
Publisher: name: arXiv
Year: 2001
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We investigate the critical parameters of an order-disorder quantum phase transitions in the spin-1/2 $J-J'$ Heisenberg and XY antiferromagnets on square lattice. Basing on the excitation gaps calculated by exact diagonalization technique for systems up to 32 spins and finite-size scaling analysis we estimate the critical couplings and exponents of the correlation length for both models. Our analysis confirms the universal critical behavior of these quantum phase transitions: They belong to 3D O(3) and 3D O(2) universality classes, respectively.
description: 7 pages, 3 figures
Pareto-Nash Reversion Strategies: Three Period Dynamic Co-operative Signalling with Sticky Efficiency Wages
Creators: name: Mayaki, Alfred A. B.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Theoretical Economics (econ.TH)
subject: FOS: Economics and business
subject: 03C65

description: This paper uses Nash equilibrium reversion as an optimal tool for clearing dynamic prices and wages. Various exogenous competitive rigidities determine the balanced growth path of the efficiency wage and the outcome of repeated household/firm wage bargaining decisions. A location model is used to explore the extent to which a downstream spatial cooperation agreement might affect the price equilibrium. There is also an endogenous hiring function and a knowledge base that is increasing in output as is the real wage. As the article demonstrates after accounting for real rigidities in the baseline model the effect of wage growth on household utility through staggered bargaining can be best captured by adopting a policy of point scoring on the mobility of skilled labor against the model's key rigidities. Mobility point scores which serve to encourage mobility from skilled labor within the model not only increase the knowledge base but also place upward pressure on nominal wage growth.
description: 12 pages
Paravelia nexa
Creators: name: Moreira, Felipe Ferraz Figueiredo
name: Barbosa, Julianna Freires
name: Ribeiro, José Ricardo Inacio
name: Alecrim, Viviani Pereira
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Veliidae
Paravelia
Paravelia nexa

description: Paravelia nexa (Drake & Harris, 1933)
Geographical distribution: Brazil.
Distribution in Brazil: Northeast Region (MA) (Drake & Harris 1933a).
description: Published as part of Moreira, Felipe Ferraz Figueiredo, Barbosa, Julianna Freires, Ribeiro, José Ricardo Inacio & Alecrim, Viviani Pereira, 2011, Checklist and distribution of semiaquatic and aquatic Heteroptera (Gerromorpha and Nepomorpha) occurring in Brazil 2958, pp. 1-74 in Zootaxa 2958 (1) on page 21, DOI: 10.11646/zootaxa.2958.1.1, http://zenodo.org/record/5281851
Hints about the multiplicity of WR 133 based on multiepoch radio observations
Creators: name: De Becker, M.
name: Isequilla, N. L.
name: Benaglia, P.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Several tens of massive binary systems display indirect, or even strong evidence for non-thermal radio emission, hence their particle accelerator status. These objects are referred to as particle-accelerating colliding-wind binaries (PACWBs). WR 133 is one of the shortest period Wolf-Rayet + O systems in this category, and is therefore critical to characterize the boundaries of the parameter space adequate for particle acceleration in massive binaries. Our methodology consists in analyzing JVLA observations of WR 133 at different epochs to search for compelling evidence for a phase-locked variation attributable to synchrotron emission produced in the colliding-wind region. New data obtained during two orbits reveal a steady and thermal emission spectrum, in apparent contradiction with the previous detection of non-thermal emission. The thermal nature of the radio spectrum along the 112.4-d orbit is supported by the strong free-free absorption by the dense stellar winds, and shows that the simple binary scenario cannot explain the non-thermal emission reported previously. Alternatively, a triple system scenario with a wide, outer orbit would fit with the observational facts reported previously and in this paper, albeit no hint for the existence of a third component exists to date. The epoch-dependent nature of the identification of synchrotron radio emission in WR 133 emphasizes the issue of observational biases in the identification of PACWBs, that undoubtedly affect the present census of PACWB among colliding-wind binaries.
description: 8 pages, 5 figures
MOESM1 of Sarcomatoid carcinoma presenting as cancers of unknown primary: a clinicopathological portrait
Creators: name: Huey, Ryan
name: Makawita, Shalini
name: Lianchun Xiao
name: Matamoros, Aurelio
name: Jeannelyn Estrella
name: Overman, Michael
name: Varadhachary, Gauri
name: Kanwal Raghav
Publisher: name: figshare
Year: 2019
Subjects: subject: Biophysics
subject: Medicine
subject: Cell Biology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Marine Biology
subject: Cancer
subject: Plant Biology

description: Additional file 1. Nomenclature for Sarcomatoid Carcinoma: Sarcomatoid carcinoma of unknown primary is referred to as using diverse terminology.
Total domination game on ladder graphs
Creators: name: Karnchana Charoensitthichai
name: Chalermpong Worawannotai
Publisher: name: Research and Development Office, Prince of Songkla University
Year: 2021
Subjects: total domination game
Game total domination number
ladder
circular ladder
M?bius ladder

description: Songklanakarin Journal of Science and Technology (SJST), 43, 2, 492-495
Zur Erinnerung an Heinrich von Eck
Creators: name: Sauer, Adolf
Publisher: name: - NO PUBLISHER DEFINED -
Year: 1925

description: Jahreshefte des Vereins für Vaterländische Naturkunde in Württemberg : zugl. Jahrbuch d. Staatlichen Museums für Naturkunde in Stuttgart
description: Bd. 81, 1925
Symmetry structure and phase transitions
Creators: name: Goyal, Ashok
name: Dahiya, Meenu
name: Chandra, Deepak
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study chiral symmetry structure at finite density and temperature in the presence of external magnetic field and gravity, a situation relevant in the early Universe and in the core of compact stars. We then investigate the dynamical evolution of phase transition in the expanding early Universe and possible formation of quark nuggets and their survival.
description: Plenary talk given at the 4th. ICPAQGP held at Jaipur, India from Nov 26-30, 2001.laTex 2e file with 8 ps figures and 12 pages
Adoption of Water-Efficient Technology: Role of Water Price Flexibility, Tenure Uncerntainty and Production Targets in Uzbekistan
Creators: name: Bhaduri, Anik
name: Djanibekov, Nodir
name: Bhaduri, Anik
name: Djanibekov, Nodir
Publisher: name: Unknown
Year: 2015
Subjects: subject: Environmental Economics and Policy
subject: Farm Management
subject: water pricing
subject: agricultural institutions
subject: water-use efficiency
subject: farm model

description: The study investigates different institutional and economic factors that can induce farmers to adopt efficient irrigation technologies in the irrigated agriculture of Uzbekistan. To investigate the effect of different policies on the investment of efficient irrigation technology, we simulate different scenarios of institutional design of the cotton procurement policy and land tenure security using a farm-based optimization model that maximizes the total net benefit of a farmer. The results indicate that a flexible water price can increase the adoption rate of efficient irrigation technologies by 20% compared to fixed water price levels. However, the high water supply variability may nevertheless delay the adoption of an efficient technology. Likewise, the removal of the cotton yield-based target could increase the adoption rate of water-efficient technologies. Finally, farmers are likely to respond much stronger to flexible water pricing, when the risk of losing land is lower.
An Introduction to Spontaneous Symmetry Breaking
Creators: name: Beekman, Aron J.
name: Rademaker, Louk
name: van Wezel, Jasper
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Perhaps the most important aspect of symmetry in physics is the idea that a state does not need to have the same symmetries as the theory that describes it. This phenomenon is known as spontaneous symmetry breaking. In these lecture notes, starting from a careful definition of symmetry in physics, we introduce symmetry breaking and its consequences. Emphasis is placed on the physics of singular limits, showing the reality of symmetry breaking even in small-sized systems. Topics covered include Nambu-Goldstone modes, quantum corrections, phase transitions, topological defects and gauge fields. We provide many examples from both high energy and condensed matter physics. These notes are suitable for graduate students.
description: 149 pages; matches published version
Paravelia parilis
Creators: name: Moreira, Felipe Ferraz Figueiredo
name: Barbosa, Julianna Freires
name: Ribeiro, José Ricardo Inacio
name: Alecrim, Viviani Pereira
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Veliidae
Paravelia
Paravelia parilis

description: Paravelia parilis (Drake & Harris, 1933)
Geographical distribution: Brazil.
Distribution in Brazil: Central-West Region (MT) (Drake & Harris 1933a).
 Comments: This species was described from “Chapada, Brazil.” See discussion under Limnogonus (Limnogonus) profugus.
description: Published as part of Moreira, Felipe Ferraz Figueiredo, Barbosa, Julianna Freires, Ribeiro, José Ricardo Inacio & Alecrim, Viviani Pereira, 2011, Checklist and distribution of semiaquatic and aquatic Heteroptera (Gerromorpha and Nepomorpha) occurring in Brazil 2958, pp. 1-74 in Zootaxa 2958 (1) on page 21, DOI: 10.11646/zootaxa.2958.1.1, http://zenodo.org/record/5281851
Topological Dynamics and Correspondences in Composite Exceptional Rings
Creators: name: Lei, Zhoutao
name: Deng, Yuangang
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: The study of unconventional phases and elucidation of correspondences between topological invariants and their intriguing properties are pivotal in topological physics. Here, we investigate a complex exceptional ring (CER), composed of a third-order exceptional ring and multiple Weyl exceptional rings, and establish a direct correspondence between Chern numbers and the distinctive behaviors of these structures. We show that band braiding during quasistatic encircling processes correlates with nontrivial Chern numbers, resulting in triple (double) periodic spectra for topologically nontrivial (trivial) middle bands. Moreover, Chern numbers predict mode transfer during dynamical encircling. Experimental schemes for realizing CER in cold atoms are proposed, emphasizing the crucial role of Chern numbers as both measurable quantity and descriptor of exceptional physics in dissipative systems. This discovery broadens topological classifications in non-Hermitian systems, with promising applications in quantum computing and metrology.
Are Farmers Willing to Pay for Quality Planting Materials of Clonally Propagated Biofortified Crops? The Case of Orange-Fleshed Sweetpotatoe in Tanzania
Creators: name: Mwiti, Florine
name: Okello, Julius J.
name: Munei, Kimpei
name: Mwiti, Florine
name: Okello, Julius J.
name: Munei, Kimpei
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agricultural and Food Policy
subject: Crop Production/Industries
subject: Farm Management
subject: Biofortified crops
subject: quality planting materials
subject: smallholder farmers
subject: willingness to pay
subject: Tanzania.

description: Hidden hunger, resulting from micronutrient deficiency, is a major problem in developing countries. Vitamin A is one of the micronutrients that are widely deficient in diets of many rural households. Biofortified staples that are rich in beta carotene, a precursor for vitamin A, such as Orange Fleshed Sweetpotato (OFSP) can contribute to solving this problem. Recent efforts have therefore focused on sensitizing farmers about the benefits of OSFP while at the same time supplying highly subsidized quality (i.e., pest and diseases free) OFSP planting materials (i.e., vines), usually fee or at heavily subsidized prices. This study uses seemingly unrelated regression technique and data from 481 farmers to assess the demand for quality OFSP vines and the factors affecting the demand for such vines. It finds high willingness to pay for quality OFSP vines shown by the high willingness to pay. Demand for quality vines is affected by number of children, age, tastes, preferences, yield and Income. The study concludes that demand for quality OFSP vines is high, but still lower than for white-fleshed varieties. It discusses implications of the findings.
On echo intervals in gravitational wave echo analysis
Creators: name: Wang, Yu-Tong
name: Zhang, Jun
name: Zhou, Shuang-Yong
name: Piao, Yun-Song
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Gravitational wave echoes, if they exist, could encode important information of new physics from the strong gravity regime. Current echo searches usually assume constant interval echoes (CIEs) a priori, although unequal interval echoes (UIEs) are also possible. Despite of its simplicity, the using of CIE templates need to be properly justified, especially given the high sensitivity of future gravitational wave detectors. In this paper, we assess the necessity of UIE templates in echo searches. By reconstructing injected UIE signals with both CIE and UIE templates, we show that the CIE template may significantly misinterpret the echo signals if the variation of the interval is greater than the statistical errors of the interval, which is further confirmed by a Bayesian analysis on model stelection. We also forecast the constraints on the echo intervals given by future GW detectors such as Advanced LIGO and Einstein Telescope.
description: 7 pages,6 figures and 3 tables
A fifty-fold improvement of thermal noise limited inertial sensitivity by operating at cryogenic temperatures
Creators: name: van Heijningen, Joris Vincent
Publisher: name: arXiv
Year: 2019
Subjects: subject: Applied Physics (physics.app-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: A vacuum compatible cryogenic accelerometer is presented which will reach $<0.5$ p$g$ Hz$^{-1/2}$ sensitivity from 1 mHz to 10 Hz with a maximum sensitivity of 10 f$g$ Hz$^{-1/2}$ around 10 Hz. This figure can be translated to a displacement sensitivity $<2$ fm Hz$^{-1/2}$ between 2 - 100~Hz. This will supersede the best obtained sensitivity of any motion sensor by more than three orders of magnitude at 1~Hz. The improvement is of interest to the fields of gravitational wave instrumentation, geophysics, accelerator physics and gravitation. In current particle accelerators and proposed future gravitational wave detectors $10^5$ signal-to-noise ratio of all terrestrial seismic spectra. The sensor may be used for control of beam-focusing cryogenic electromagnets in particle accelerators, cryogenic inertial sensing for future gravitational wave detectors and other fields.
description: Figure 2 updated to correct version
Intersubband magnetophonon resonances in quantum cascade structures
Creators: name: Smirnov, D.
name: Drachenko, O.
name: Leotin, J.
name: Page, H.
name: Becker, C.
name: Sirtori, C.
name: Apalkov, V.
name: Chakraborty, T.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report on our magnetotransport measurements of GaAs/GaAlAs quantum cascade structures in a magnetic field of up to 62 T. We observe novel quantum oscillations in tunneling current that are periodic in reciprocal magnetic field. We explain these oscillations as intersubband magnetophonon resonance due to electron relaxation by emission of either single optical or acoustic phonons. Our work also provides a non-optical in situ measurement of intersubband separations in quantum cascade structures.
description: 5 pages, 4 figures
Economic Viability of Organic Farming: An Empirical Experience of Vegetable Cultivation in Karnataka
Creators: name: Naik, Vinod R.
name: Kunnal, L.
name: Nethrayini, K.R.
name: Naik, Vinod R.
name: Kunnal, L.
name: Nethrayini, K.R.
Publisher: name: Unknown
Year: 2015
Subjects: subject: Crop Production/Industries
subject: Farm Management
subject: Financial Economics
subject: Budgeting technique
subject: Organic farming
subject: Non-organic farming and Decomposition technique

description: The present study was conducted in Belgaum District of Karnataka, India. To know the viability of organic vegetable cultivation, a sample of 30 farmers each practicing organic cultivation of tomato and chilli and 30 farmers each practicing non-organic cultivation of tomato and chilli were selected randomly for the study. The data so collected were analysed using budgeting technique and output decomposition technique. The study revealed that, even though per acre cost of cultivation and yield of both crops on organic farms was less than non-organic farms but the B: C ratio was found higher in organic farms. The outcome of decomposition analysis revealed that in case of both the crops, organic farming technology was the major contributing factor for increase in income of the organic growers over the non-organic growers. Hence it is advisable for the farmers to switch over to organic farming which is environmental friendly and cost effective.
Achieving Observability on Fog Computing with the use of open-source tools
Creators: name: Costa, Breno
name: Banerjee, Abhik
name: Jayaraman, Prem Prakash
name: Carvalho, Leonardo R.
name: Bachiega, João
name: Araujo, Aleteia
Publisher: name: arXiv
Year: 2024
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: Fog computing can provide computational resources and low-latency communication at the network edge. But with it comes uncertainties that must be managed in order to guarantee Service Level Agreements. Service observability can help the environment better deal with uncertainties, delivering relevant and up-to-date information in a timely manner to support decision making. Observability is considered a superset of monitoring since it uses not only performance metrics, but also other instrumentation domains such as logs and traces. However, as Fog Computing is typically characterised by resource-constrained nodes and network uncertainties, increasing observability in fog can be risky due to the additional load injected into a restricted environment. There is no work in the literature that evaluated fog observability. In this paper, we first outline the challenges of achieving observability in a Fog environment, based on which we present a formal definition of fog observability. Subsequently, a real-world Fog Computing testbed running a smart city use case is deployed, and an empirical evaluation of fog observability using open-source tools is presented. The results show that under certain conditions, it is viable to provide observability in a Fog Computing environment using open-source tools, although it is necessary to control the overhead modifying their default configuration according to the application characteristics.
description: Paper presented at Mobiquitous 2023
MOESM4 of A comprehensive survey of the prevalence and spatial distribution of ticks infesting cattle in different agro-ecological zones of Cameroon
Creators: name: Silatsa, Barberine
name: Simo, Gustave
name: Naftaly Githaka
name: Mwaura, Stephen
name: Rolin Kamga
name: Farikou Oumarou
name: Keambou, Christian
name: Bishop, Richard
name: Djikeng, Appolinaire
name: Jules-Roger Kuiate
name: Flobert Njiokou
name: Pelle, Roger
Publisher: name: figshare
Year: 2019
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: Developmental Biology

description: Additional file 4: Figure S3. Rhipicephalus annulatus dorsal and ventral views.
Characterizing Earth-like Planets with Terrestrial Planet Finder
Creators: name: Seager, S.
name: Ford, E. B.
name: Turner, E. L.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: For the first time in human history the possibility of detecting and studying Earth-like planets is on the horizon. Terrestrial Planet Finder (TPF), with a launch date in the 2015 timeframe, is being planned by NASA to find and characterize planets in the habitable zones of nearby stars. The mission Darwin from ESA has similar goals. The motivation for both of these space missions is the detection and spectroscopic characterization of extrasolar terrestrial planet atmospheres. Of special interest are atmospheric biomarkers--such as O2, O3, H2O, CO and CH4--which are either indicative of life as we know it, essential to life, or can provide clues to a planet's habitability. A mission capable of measuring these spectral features would also obtain sufficient signal-to-noise to characterize other terrestrial planet properties. For example, physical characteristics such as temperature and planetary radius can be constrained from low- resolution spectra. In addition, planet characteristics such as weather, rotation rate, presence of large oceans or surface ice, and existence of seasons could be derived from photometric measurements of the planet's variability. We will review the potential to characterize terrestrial planets beyond their spectral signatures. We will also discuss the possibility to detect strong surface biomarkers--such as Earth's vegetation red edge near 700 nm--that are different from any known atomic, molecular, or mineralogical signature.
description: SPIE Proceedings, Future Research Direction and Visions for Astronomy, 8 pages, pdf only
Paravelia recens
Creators: name: Moreira, Felipe Ferraz Figueiredo
name: Barbosa, Julianna Freires
name: Ribeiro, José Ricardo Inacio
name: Alecrim, Viviani Pereira
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Veliidae
Paravelia
Paravelia recens

description: Paravelia recens (Drake & Harris, 1935)
Geographical distribution: Honduras, Colombia, Venezuela, Trinidad & Tobago, Panama, Guyana, Brazil, Peru, Bolivia, and Paraguay. According to Polhemus and Polhemus (1991), the record from Belize (cited as British Honduras) present on Drake and Maldonado-Capriles (1952) is probably an error, because only specimens from Honduras proper were found in Drake’s collection.
 Distribution in Brazil: North Region (PA, AM) (Drake & Hussey 1954; Polhemus & Polhemus 1991; Pereira et al. 2007).
description: Published as part of Moreira, Felipe Ferraz Figueiredo, Barbosa, Julianna Freires, Ribeiro, José Ricardo Inacio & Alecrim, Viviani Pereira, 2011, Checklist and distribution of semiaquatic and aquatic Heteroptera (Gerromorpha and Nepomorpha) occurring in Brazil 2958, pp. 1-74 in Zootaxa 2958 (1) on page 21, DOI: 10.11646/zootaxa.2958.1.1, http://zenodo.org/record/5281851
To What Extent Does Modified System of Rice Intensification (SRI) Training Increase Productivity of Small-Scale Rice Cultivation in a Rain-Fed Area? Evidence from Tanzania
Creators: name: Nakano, Yuko
name: Tanaka, Tuki
name: Otsuka, Keijiro
name: Nakano, Yuko
name: Tanaka, Tuki
name: Otsuka, Keijiro
Publisher: name: Unknown
Year: 2015
Subjects: subject: Environmental Economics and Policy
subject: Research and Development/Tech Change/Emerging Technologies
subject: Green Revolution
subject: Sub-Saharan Africa
subject: Technology Adoption
subject: Lowland Rice
subject: Modified System of Rice Intensification

description: This study investigates the impact of modified System of Rice Intensification (SRI) training provided by a large-scale private farm on the performance of surrounding small-scale rice farmers in a rain-fed area in Tanzania. We found that the training effectively increases the adoption of improved rice cultivation practices, paddy yield, and profit of rice cultivation by small-holder farmers. In fact, the trainees achieve paddy yield of 5 tons per hectare on average, which is remarkably high in rain-fed rice cultivation by any standard. Our results suggest high potential for achieving a rice Green Revolution in rain-fed areas and the importance of extension services by large-scale farms.
MOESM2 of A comprehensive survey of the prevalence and spatial distribution of ticks infesting cattle in different agro-ecological zones of Cameroon
Creators: name: Silatsa, Barberine
name: Simo, Gustave
name: Naftaly Githaka
name: Mwaura, Stephen
name: Rolin Kamga
name: Farikou Oumarou
name: Keambou, Christian
name: Bishop, Richard
name: Djikeng, Appolinaire
name: Jules-Roger Kuiate
name: Flobert Njiokou
name: Pelle, Roger
Publisher: name: figshare
Year: 2019
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: Developmental Biology

description: Additional file 2: Figure S1. Amblyomma variegatum and Rhipicephalus sanguineus dorsal and ventral views.
Electron affinities of At and its homologous elements Cl, Br, and I
Creators: name: Si, R.
name: Fischer, C. Froese
Publisher: name: arXiv
Year: 2019
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The multiconfiguration Dirac-Hartree-Fock method is applied to study the electron affinities of At and its homologous elements Cl, Br, and I. Our method of calculation is validated through the comparison with the available experimental electron affinities of Cl, Br, I, and other theoretical values. The agreement between our predicted electron affinities and the available experimental values for Cl, Br, and I is within 0.2%, which is an improvement of more than a factor of 10 over previous theoretical studies. Applying the same method to At, the electron affinity of At is predicted to be 2.3729(46) eV.
Optimal Low-Depth Quantum Signal-Processing Phase Estimation
Creators: name: Dong, Yulong
name: Gross, Jonathan A.
name: Niu, Murphy Yuezhen
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: Machine Learning (cs.LG)
subject: Numerical Analysis (math.NA)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Quantum effects like entanglement and coherent amplification can be used to drastically enhance the accuracy of quantum parameter estimation beyond classical limits. However, challenges such as decoherence and time-dependent errors hinder Heisenberg-limited amplification. We introduce Quantum Signal-Processing Phase Estimation algorithms that are robust against these challenges and achieve optimal performance as dictated by the Cramér-Rao bound. These algorithms use quantum signal transformation to decouple interdependent phase parameters into largely orthogonal ones, ensuring that time-dependent errors in one do not compromise the accuracy of learning the other. Combining provably optimal classical estimation with near-optimal quantum circuit design, our approach achieves a standard deviation accuracy of $10^{-4}$ radians for estimating unwanted swap angles in superconducting two-qubit experiments, using low-depth ($<10$) circuits. This represents up to two orders of magnitude improvement over existing methods. Theoretically and numerically, we demonstrate the optimality of our algorithm against time-dependent phase errors, observing that the variance of the time-sensitive parameter $φ$ scales faster than the asymptotic Heisenberg scaling in the small-depth regime. Our results are rigorously validated against the quantum Fisher information, confirming our protocol's ability to achieve unmatched precision for two-qubit gate learning.
description: 58 pages, 22 figures. arXiv admin note: substantial text overlap with arXiv:2209.11207