cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
On the resolution of regional archaeomagnetism: Untangling directional geomagnetic oscillations and data uncertainties using the French archaeomagnetic database for between 1000 and 1500 AD as a guide
Creators: name: Goff, Maxime Le
name: Gallet, Yves
Publisher: name: Geological Society of London
Year: 2019
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: Fig. S1. Description of the 303 directional results dated between 1000 and 1500 AD obtained from England and Wales (Batt et al. 2017). a) Histogram of experimental uncertainties (σ95). Pale green, all data; dark green, only data with Δt ≤ 150 years. b) Histogram of age uncertainties (Δt) for all available data. Pale green, data with Δt > 150 years; dark green, data with Δt ≤ 150 years. c) Temporal distribution of age intervals of the available data with Δt ≤ ⃞⃞⃞ years.
VRO 42.05.01: A supernova remnant resulted by a supersonic, mass losing progenitor star
Creators: name: Chiotellis, A.
name: Boumis, P.
name: Derlopa, S.
name: Steffen, W.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a model for the Galactic supernova remnant (SNR) VRO 42.05.01, suggesting that its intriguing morphology can be explained by a progenitor model of a supersonically moving, mass losing star. The mass outflows of the progenitor star were in the form of an asymmetric stellar wind focused on the equatorial plane of the star. The systemic motion of the parent star in combination with its asymmetric outflows excavated an extended wind bubble that revealed a similar structure to this of VRO 42.05.01. Currently the SNR is interacting with the wind bubble and it is dominantly shaped by it. Employing 2D hydrodynamic simulations we model VRO 42.05.01 under the framework of this model and we reproduce its overall morphological properties. We discuss the variations of our progenitor model in light of the current observational uncertainties.
description: 5 pages, 3 figures
Development and control of Multi-Degrees of Freedom Large Range Micropositioning Mechanisms
Creators: name: AMMAR ABDULHUSSEIN LAFTA AL-JODAH
Publisher: name: Monash University
Year: 2021
Subjects: subject: 91007 Manufacturing Robotics and Mechatronics (excl. Automotive Mechatronics)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: Mechanical Engineering
subject: FOS: Mechanical engineering
subject: 90602 Control Systems, Robotics and Automation

description: Micropositioners are critical for advanced manufacturing applications. However, they are limited in their compactness, range, and accuracy. This thesis develops several novel micropositioners with advanced control methodologies to establish these positioners as the next generation of machine tools for precision industries and applications.
Identification problems of muon and electron events in the Super-Kamiokande detector
Creators: name: Mitsui, K
name: Kitamura, T
name: Wada, T
name: Okei, K
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: In the measurement of atmospheric nu_e and nu_mu fluxes, the calculations of the Super Kamiokande group for the distinction between muon-like and electronlike events observed in the water Cerenkov detector have initially assumed a misidentification probability of less than 1 % and later 2 % for the sub-GeV range. In the multi-GeV range, they compared only the observed behaviors of ring patterns of muon and electron events, and claimed a 3 % mis-identification. However, the expressions and the calculation method do not include the fluctuation properties due to the stochastic nature of the processes which determine the expected number of photoelectrons (p.e.) produced by muons and electrons. Our full Monte Carlo (MC) simulations including the fluctuations of photoelectron production show that the total mis-identification rate for electrons and muons should be larger than or equal to 20 % for sub-GeV region. Even in the multi-GeV region we expect a mis-identification rate of several % based on our MC simulations taking into account the ring patterns. The mis-identified events are mostly of muonic origin.
description: 17 pages, 12 figures
Singularity for Solutions of Linearized KdV Equations
Creators: name: Kato, Keiichi
name: Kawamoto, Masaki
name: Nanbu, Koichiro
Publisher: name: arXiv
Year: 2019
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We investigate the time propagation of singularity of a solution to linearized KdV equation by using the characterization of wave front sets with using to the wave packet transform (short time Fourier transform).
Recent advance in phase transition of vanadium oxide based solar reflectors and the fabrication progress
Creators: name: Mirbagheri, Golsa
name: Crouse, David T.
name: Tan, Chee-Keong
Publisher: name: arXiv
Year: 2022
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Vanadium dioxide (VO2) as a phase-change material controls the transferred heat during phase transition process between metal and insulator states. At temperature above 68C, the rutile structure VO2 keeps the heat out and increases the IR radiation reflectivity, while at the lower temperature the monoclinic structure VO2 acts as the transparent material and increase the transmission radiation. In this paper, we first present the metal-insulator phase transition (MIT) of the VO2 in high and low temperatures. Then we simulate the meta-surface VO2 of metamaterial reflector by Ansys HFSS to show the emittance tunability of the rutile and monoclinic phase of the VO2. In next section, we will review the recent progress in the deposition of thermochromic VO2 on glass and silicon substrate with modifying the pressure of sputtering gases and temperature of the substrate. Finally, we present the results of the in-situ sputtered VOx thin film on thick SiO2 substrate in different combination of oxygen and argon environment by V2O5 target at temperature higher than 300C and then, analyze it with x-ray diffraction (XRD) method. The thermochromic VO2 based metamaterial structures open a new route to the passive energy-efficient optical solar reflector in the past few years.
description: 11 pages
Field-Driven Hysteretic and Reversible Resistive Switch at the Ag-Pr0.7Ca0.3MnO3 Interface
Creators: name: Baikalov, A.
name: Wang, Y. Q.
name: Shen, B.
name: Lorenz, B.
name: Tsui, S.
name: Sun, Y. Y.
name: Xue, Y. Y.
name: Chu, C. W.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The hysteretic and reversible polarity-dependent resistive switch driven by electric pulses is studied in both Ag/Pr0.7Ca0.3MnO3/YBa2Cu3O7 sandwiches and single-layer Pr0.7Ca0.3MnO3 strips. The data demonstrate that the switch takes place at the Ag-Pr0.7Ca0.3MnO3 interface. A model, which describes the data well, is proposed. We further suggest that electrochemical diffusion is the cause for the switch.
description: 4 pages, 3 figures; submitted to Appl. Phys. Lett. (December 17, 2002)
Design, fabrication, and spectral characterization of TM-polarized metamaterials-based narrowband infrared filter
Creators: name: Mirbagheri, Golsa
name: Crouse, David T.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Hyperbolic Metamaterials, as a non-magnetic anisotropic artificial structure, show metal properties in one direction and dielectric behavior in orthogonal directions. The proposed hyperbolic metamaterial filter in this project is designed with the metal wire mesh perpendicular to the alternative layers of dielectric materials, keeps TM center wavelength unchanged for the different angle of incident light in MDIR regime. The geometric size of this nanostructure is smaller than the working wavelength and supports big wavevectors due to hyperbolic dispersion. In contrast with conventional Bragg stack, the copper fakir bed makes the transmission properties of the filter the same. For this purpose, the state-of-the-art fabrication methods are required to make such small dimensions in alternative layers of amorphous silicon and silicon dioxide. In this work, first we demonstrate the simulation of Bragg stack with RCWA and finite element methods. Then we focus on our first-time multistep lithography method used to fabricate the filter. Finally, we experimentally verify the optical characteristic of the fabricated filter using Fourier-transform infrared spectroscopy. The experimental and spectrometry data shows that transmission properties of the hyperbolic metamaterial filter remain the same for oblique TM polarized incident light.
description: 13 pages
Additional file 1: of Early father-infant skin-to-skin contact and its effect on the neurodevelopmental outcomes of moderately preterm infants in China: study protocol for a randomized controlled trial
Creators: name: Deng, Qingqi
name: Li, Qiufang
name: Wang, Hua
name: Sun, Huilian
name: Xu, Xinfen
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology

description: Sample size calculation. (DOCX 193 kb)
Megalota Diakonoff 1966
Creators: name: Brown, John W.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Tortricidae
Megalota

description: Key to the species groups of Megalota based on male genitalia
 1. Basal process of the valva longer than valva (Fig. 46)....................................................................... C. plenana group
- Basal process of the valva shorter than valva............................................................................................................... 2
 2. Basal process of the valva triangular, with small sclerotized distal hook (Fig. 48)......................... D. pastranai group
- Basal process of the valva variable but not triangular, densely spined in distal 0.15-0.25, without hook.................. 3
 3. Valva with large, distally attenuate, incurved process near middle bearing dense spiniform setae (Fig. 25-30).................................................................................................................................................................... A. submicans group
 - Valva without large incurved process near middle bearing dense spiniform setae (Figs. 31-45)....................................................................................................................................................................................... B. delphinosema group
description: Published as part of Brown, John W., 2009, The discovery of Megalota in the Neotropics, with a revision of the New World species (Lepidoptera: Tortricidae: Olethreutini), pp. 1-50 in Zootaxa 2279 (1) on page 6, DOI: 10.11646/zootaxa.2279.1.1, http://zenodo.org/record/5307538
A Roadmap towards a Space-based Radio Telescope for Ultra-Low Frequency Radio Astronomy
Creators: name: Bentum, M. J.
name: Verma, M. K.
name: Rajan, R. T.
name: Boonstra, A. -J.
name: Verhoeven, C. J. M.
name: Gill, E. K. A.
name: van der Veen, A. J.
name: Falcke, H.
name: Wolt, M. Klein
name: Monna, B.
name: Engelen, S.
name: Rotteveel, J.
name: Gurvits, L. I.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The past two decades saw a renewed interest in low frequency radio astronomy, with a particular focus on frequencies above 30 MHz. However, at frequencies below 30 MHz, Earth-based observations are limited due to a combination of severe ionospheric distortions, almost full reflection of radio waves below 10 MHz, solar eruptions and human-made radio frequency interference (RFI). A space or Lunar-based ultra-low-frequency (or ultra-long-wavelength, ULW) array would suffer significantly less from these limitations and hence would open up the last, virtually unexplored frequency domain in the electromagnetic spectrum. A roadmap has been initiated in order to explore the opportunity of building a swarm of satellites to observe at the frequency band below 30 MHz. This roadmap, dubbed Orbiting Low Frequency Antennas for Radio Astronomy (OLFAR), presents a space-based ultra-low frequency radio telescope that will explore the Universe's so-called dark ages, map the interstellar medium, and study planetary and solar bursts in the solar system and search them in other planetary systems. Such a system will comprise of a swarm of hundreds to thousands of satellites, working together as a single aperture synthesis instrument deployed sufficiently far away from Earth to avoid terrestrial RFI. A number of key technologies of OLFAR are still to be developed and proven. The first step in this roadmap is the NCLE (Netherlands China Low Frequency Explorer) experiment launched in May 2018 on the Chinese Chang'e-4 mission. The NCLE payload consists of a three monopole antenna system from which the first data stream is expected in the second half of 2019, which will provide important feedback for future science and technology opportunities. In this paper, the roadmap towards OLFAR, a brief overview of the science opportunities, and the technological and programmatic challenges of the mission are presented.
description: 28 pages, 2 figures, 5 tables; accepted
Price Dynamics and Cointegration in the Major Markets of Aquaculture Species in the Philippines
Creators: name: Garcia, Yolanda T.
name: Salayo, Nerissa D.
name: Garcia, Yolanda T.
name: Salayo, Nerissa D.
Publisher: name: Unknown
Year: 2009
Subjects: Agricultural and Food Policy

description: This study explores the interdependencies of aquaculture markets in the Philippines by establishing the price cointegration between the wholesale and retail prices of three major species commonly farmed in the country, i.e., milkfish, tilapia, and shrimp. The co-movements of wholesale prices between and among key markets for each species are also investigated. Moreover, exogeneity in prices is established using the Granger-causation model to determine the existence of price leaders among these markets. These information are crucial because they may provide a better understanding of the efficiency in price formation across production and consumption centers. Thus, aquaculture producers and traders may use these information as basis for more efficient farm management and marketing decisions. Appropriate policies for the development of markets for the three aquaculture species are also identified in this study. Such policies are expected to contribute towards more efficient pricing and distribution of benefits among market players and stakeholders. These benefits are expected to manifest through the system of grading standards for fish traded in local markets, and the choice of cost-effective technologies in grow-out and post-production practices.
Additional file 2: of Early father-infant skin-to-skin contact and its effect on the neurodevelopmental outcomes of moderately preterm infants in China: study protocol for a randomized controlled trial
Creators: name: Deng, Qingqi
name: Li, Qiufang
name: Wang, Hua
name: Sun, Huilian
name: Xu, Xinfen
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology
subject: Science Policy

description: SPIRIT 2013 checklist: recommended items to address in a clinical trial protocol and related documents. (PDF 588 kb)
Understanding chiral symmetry breaking with the overlap action
Creators: name: DeGrand, Thomas
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: A chiral fermion action allows one to do very clean studies of chiral symmetry breaking in QCD. I will briefly describe how to compute with the overlap action (relatively) cheaply, and then turn to physics: Low modes of the Dirac operator show a ``lumped'' chiral density which peaks at the locations of instantons and anti-instantons. These modes dominate correlation functions at small quark mass in many channels. The picture qualitatively (and in some cases quantitatively) resembles an instanton liquid model.
description: Lattice2001(confinement)
Colloidal Self-Assembly of Novel Materials Displaying Structural Colour
Creators: name: O'Neill, Thomas James
Publisher: name: Apollo - University of Cambridge Repository
Year: 2019
Subjects: subject: Self-Assembly
subject: Structural Colour
subject: Colloidal Synthesis
subject: Nanotechnology
subject: FOS: Nanotechnology

description: Self-assembly of colloids is a powerful technique for the synthesis of novel materials. While top-down manufacturing methods can also produce structures patterned on the mesoscale, they are frequently limited in resolution, slow to employ or restricted to two-dimensional systems; in contrast, self-assembly theoretically offers full control over the three-dimensional microstructure of a material and can be tuned by varying initial conditions and external forces. Self-assembly is particularly attractive because of its prevalence in the natural world; most naturally occurring nanostructures with interesting properties are produced through self-assembly processes that can then be mimicked in synthetic systems. One such class of materials exhibits structural colour, where light is differentially scattered or reflected based not on absorption but on the physical arrangement of the material on the nanoscale. Structurally produced colours tend to be brighter and more vivid than pigment-based ones and do not fade over time. As such they have numerous potential applications not only as a source of colouration but also in next-generation non-backlit displays and optoelectronic systems. This thesis discusses the synthesis, functionalisation and self-assembly of colloids into novel functional materials, particularly those that mimic naturally occurring structural colour based on disordered and ordered systems. The functionalisation of colloids with DNA introduces a specific, tuneable and thermally reversible attractive potential between particles, making it an excellent system to explore self-assembly. DNA-coated polystyrene particles were used to investigate gel formation through a spinodal decomposition mechanism and how the resulting gel structure reproducibly depends upon suspension properties. Subsequently, the tendency of such gels to produce structural colour was investigated using both polystyrene and silica DNA-coated colloidal systems, in comparison with similar natural materials. Finally, soft solution-phase photonic crystals were assembled using highly charged colloids of a low refractive index. This system was found to exhibit isotropic structural colour tuneable throughout the visible range, coupled with high transparency.
description: This work was supported by the EPSRC Cambridge NanoDTC, EP/L015978/1
Supp Fig 1. Unravelling the Neoproterozoic Accretionary History of Oman, Using an Array of Isotopic Systems in Zircon.
Creators: name: M.L. Blades
name: B.L Alessio
name: A.S. Collins
name: J. Foden
name: J.L. Payne
name: S. Glorie
name: P. Holden
name: B. Thorpe
name: S. Al-Khirbash
Publisher: name: Geological Society of London
Year: 2019
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: Fig. 1: Weighted average plots (>90% concordant) of zircon ages from all igneous basement samples in Oman. Black bars are 206Pb/238U ages with 2σ errors. Grey bars (corresponding to either 207Pb/206Pb, dark grey or 206Pb/238U (light grey)) weighted averages ages 2σ errors. Where there are multiple populations interpreted these are shown by a second weighted average age and mean, however only the crystallisation age is quoted in the figure. These plots are used to highlight any trends in the data.
Energy Dependence of a Low Frequency QPO in GRS 1915+105
Creators: name: Rodriguez, J.
name: Durouchoux, Ph.
name: Mirabel, I. F.
name: Ueda, Y.
name: Tagger, M.
name: Yamaoka, K.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We analyze a set of three RXTE Target of Opportunity observations of the Galactic microquasar GRS 1915+105, observed on April 2000, during a multi-wavelength campaign. During the three observations, a strong, variable low frequency (2-9 Hz) quasi periodic oscillation (hereafter QPO), often referred to as the ubiquitous QPO, is detected together with its first harmonic. We study the spectral properties of both features, and show that : 1) their frequency variations are better correlated with the soft X-ray flux (2-5 keV), favoring thus the location of the QPO in the accretion disk; 2) the QPO affects more the hard X-rays, usually taken as the signature of an inverse compton scattering of the soft photons in a corona; 3) the fundamental and its harmonic do not behave in the same manner: the fundamental sees its power increase with the energy up to 40 keV, whereas the harmonic increases up to $\sim 10$ keV. The results presented here could find an explanation in the context of the Accretion-Ejection Instability, which could appear as a rotating spiral or hot point located in the disk, between its innermost edge and the corotation radius. The presence of the harmonic could then be a signature of the non-linear behavior of the instability. The high-energy (>40 keV) decrease of the fundamental would favor an interpretation where most or all of the quasi-periodic modulation at high energies comes, not from the comptonized corona as usually assumed, but from a hot point in the optically thick disk
description: 8 pages, 7 figures, accepted for publication in Astronomy and Astrophysics
Additional file 1 of Identification of the key flavonoid and lipid synthesis proteins in the pulp of two sea buckthorn cultivars at different developmental stages
Creators: name: Du, Wei
name: Ding, Jian
name: Lu, Shunguang
name: Wen, Xiufeng
name: Hu, Jianzhong
name: Ruan, Chengjiang
Publisher: name: figshare
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Plant Biology

description: Additional file 1: Table S1. TMT Labeling information.
Design, fabrication, and spectral characterization of temperature-dependent liquid crystal-based metamaterial to tune dielectric metasurface resonances
Creators: name: Mirbagheri, Golsa
name: Crouse, David T.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Tunable dielectric meta-surface nanostructures offer incredible performance in optical application due to their extraordinary tunability of the polarization and engineering the dispersion of light with low loss in infrared range. In this article, we designed and experimentally measured the tunability of all-dielectric subwavelength silicon nanoparticles with the help of the temperature-based refractive index of the liquid crystal in the telecom regime. The proposed structure composed of high dielectric nanodisk surrounded by nematic liquid crystal (NLC) is simulated with numerical software, assembled with pre-alignment material, and optically measured by Fourier-transform infrared (FTIR) spectroscopy. The simulated result is compatible with the practical measurements, shows that the tunability of 30nm is achieved. Electric and magnetic resonance modes of the high dielectric nanodisks are tailored in different rates by anisotropic temperature dependent NLC. The phase switching of anisotropic to isotropic nematic liquid crystal enables spectral tunning of the two modes of all dielectric metasurface and modifies the symmetry of the optical response of the metamaterial structure.
description: 11 pages
The “Tipping Point” in Indian Agriculture: Understanding the Withdrawal of the Indian Rural Youth
Creators: name: Sharma, Amrita
name: Bhaduri, Anik
name: Sharma, Amrita
name: Bhaduri, Anik
Publisher: name: Unknown
Year: 2009
Subjects: Agricultural and Food Policy

description: Recent trends suggest that India might very well be at the “tipping point” of the transition in its agriculture-dependent population. A large proportion of the youth in the countryside are trying to sever their links from farming. The paper attempts to identify the drivers of this process of withdrawal and assess the odds of an average farmer’s move out of agriculture. Results of the study indicate that occupational mobility tends to be higher among younger farmers and they are found to be more sensitive to income differentials between farm and non-farm occupations, farm prices, and interest rates. Further, this study finds that the availability of irrigation does not have any significant impact on the withdrawal behavior. The small and marginal farmers express a great desire to quit farming, possibly because of the low viability of smallholder agriculture. But as the land size increases, the tendency towards withdrawal gains among the large holder category as well, thus suggesting a U-shape relationship between farm size and the willingness towards withdrawal. Interestingly, all these factors seem to become more dominant and their coefficients improve for villages farther removed from towns. Thus, the importance of the proximity to urban areas for occupational choice seems to be indicated.
Quantum criticality and universality in the $p$-wave paired Aubry-André-Harper model
Creators: name: Lv, Ting
name: Yi, Tian-Cheng
name: Li, Liangsheng
name: Sun, Gaoyong
name: You, Wen-Long
Publisher: name: arXiv
Year: 2022
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We investigate the quantum criticality and universality in Aubry-André-Harper (AAH) model with $p$-wave superconducting pairing $Δ$ in terms of the generalized fidelity susceptibility (GFS). We show that the higher-order GFS is more efficient in spotlighting the critical points than lower-order ones, and thus the enhanced sensitivity is propitious for extracting the associated universal information from the finite-size scaling in quasiperiodic systems. The GFS obeys power-law scaling for localization transitions and thus scaling properties of the GFS provide compelling values of critical exponents. Specifically, we demonstrate that the fixed modulation phase $ϕ=π$ alleviates the odd-even effect of scaling functions across the Aubry-André transition with $Δ=0$, while the scaling functions for odd and even numbers of system sizes with a finite $Δ$ cannot coincide irrespective of the value of $ϕ$. A thorough numerical analysis with odd number of system sizes reveals the correlation-length exponent $ν\simeq 1.000$ and the dynamical exponent $z$ $\simeq$ 1.388 for transitions from the critical phase to the localized phase,suggesting the unusual universality class of localization transitions in the AAH model with a finite $p$-wave superconducting pairing lies in a different universality class from the Aubry-André transition. The results may be testified in near term state-of-the-art experimental settings.
description: 12 pages, 7 figures, accepted by Physical Review A
An atom passing through a hole in a dielectric membrane: Impact of dispersion forces on mask-based matter-wave lithography
Creators: name: Fiedler, Johannes
name: Holst, Bodil
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Fast, large area patterning of arbitrary structures down to the nanometre scale is of great interest for a range of applications including the semiconductor industry, quantum electronics, nanophotonics and others. It was recently proposed that nanometre-resolution mask lithography can be realised by sending metastable helium atoms through a binary holography mask consisting of a pattern of holes. However, these first calculations were done using a simple scalar wave approach, which did not consider the dispersion force interaction between the atoms and the mask material. To access the true potential of the idea, it is necessary to access how this interaction affects the atoms. Here we present a theoretical study of the dispersion force interaction between an atom and a dielectric membrane with a hole. We look at metastable and ground state helium, using experimentally realistic wavelengths (0.05-1 nm) and membrane thicknesses (5-50 nm). We find that the effective hole radius is reduced by around 1-7 nm for metastable helium and 0.5-3.5 nm for ground-state helium. As expected, the reduction is largest for thick membranes and slow atoms.
Soil Conservation Decisions and Upland Corn Productivity: A Philippine Case Study
Creators: name: Rola, Agnes C.
name: Sajise, Asa Jose U.
name: Harder, Dieldre S.
name: Alpuerto, Joe Marvin P.
name: Rola, Agnes C.
name: Sajise, Asa Jose U.
name: Harder, Dieldre S.
name: Alpuerto, Joe Marvin P.
Publisher: name: Unknown
Year: 2009
Subjects: Agricultural and Food Policy
Crop Production/Industries
Productivity Analysis

description: This paper empirically investigates whether farmers who adopt soil conservation measures derive productivity gains. A twelve-year (1994-2006) panel data in Bukidnon, Philippines was used to quantify the indirect relationship between soil conservation technology adoption and upland corn productivity. A two-stage econometric analysis was done. First, the probability of adoption was estimated. The associated inverse Mill’s ratio obtained from the fi rst stage was used to correct the second stage endogenous switching stochastic frontier model estimation of the determinants of corn yield. Results showed that in normal times, upland corn productivity is positively affected by abatement of soil erosion. Results further suggest that farmers adopting soil conservation technologies become less flexible in their land use decisions during periods of drought, thereby experiencing lower yields than the non-adopters.
New class of generalized coupling theories
Creators: name: Feng, Justin C.
name: Carloni, Sante
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 - Theory (hep-th)
subject: FOS: Physical sciences
subject: 83D05, 83F05

description: We propose a new class of gravity theories which are characterized by a nontrivial coupling between the gravitational metric and matter mediated by an auxiliary rank-2 tensor. The actions generating the field equations are constructed so that these theories are equivalent to general relativity in a vacuum, and only differ from general relativity theory within a matter distribution. We analyze in detail one of the simplest realizations of these generalized coupling theories. We show that in this case the propagation speed of gravitational radiation in matter is different from its value in vacuum and that this can be used to weakly constrain the (single) additional parameter of the theory. An analysis of the evolution of homogeneous and isotropic spacetimes in the same framework shows that there exist cosmic histories with both an inflationary phase and a dark era characterized by a different expansion rate.
description: 19 pages, 1 table, 3 figures. Minor revisions, added references. Matches published version
Technical Efficiency of Land Tenure Contracts in West Java Province, Indonesia
Creators: name: Jamal, Erizal
name: Dewi, Yovita Anggita
name: Jamal, Erizal
name: Dewi, Yovita Anggita
Publisher: name: Unknown
Year: 2009
Subjects: Agricultural and Food Policy
Land Economics/Use

description: Obtaining land tenure contracts for rice farms is a major problem faced by farmer tenants in the province of West Java. This study aimed to analyze the type of land tenure contracts in this region and the levels of technical efficiency of each contract system. Data were collected through a survey, with respondents randomly selected from the Karawang and Subang districts of West Java. The stochastic frontier was used to determine the efficiency of each system. Results showed that the average area being tilled was higher than land owned due to land tenure arrangements that increased farmers’ access to land. Three common land tenure contracts in this region are fixed rental, sharecropping, and mortgage. Sharecropping and mortgage coefficients were found to be less efficient, while fixed rental was more efficient compared to owner-cultivated plots. These results provided evidence to support the view that sharecropping is inefficient for the tenants. However, sharecropping is still a common type of land transaction in West Java. To improve efficiency, the local government can help farmers by enabling them to lease land through fixed rental or other more favorable arrangements.
Double-stranded RNA uptake in Caenorhabditis elegans
Creators: name: Braukmann, Fabian
Publisher: name: Apollo - University of Cambridge Repository
Year: 2020
Subjects: C. elegans
dsRNA
RNAi

description: dsRNA uptake from the environment is a common phenomenon in many invertebrates and can be harnessed for acquiring pest control. In the nematode Caenorhabditis elegans, a transmembrane protein named systemic RNAi deficient-2 (sid-2) is required for dsRNA uptake from the environment through the intestine. Furthermore, the tyrosine-protein kinase sid-3 promotes import dsRNA. However, the molecular mechanism underlying environmental RNA uptake and its natural phenotypic roles are largely unknown. Here I characterized the intracellular properties of SID-2 and its role during the nematode development. I determined SID-2 localization at the intestinal apical membrane and the trans-Golgi-network (TGN). This localization is dependent on sid-3 and its potential substrate viro-2, hence demonstrating a molecular interplay between the different SID proteins. The spatial organisation of SID-2 is conserved across species, suggesting a role for the TGN in environmental RNA uptake. By combing small RNA and transcriptome profiling with developmental studies I identified a novel role for systemic RNAi in worm morphology. A detailed phenotypical analysis ruled out a nutritional role for dsRNA uptake, implying that environmental RNA uptake affects morphology through gene regulation. These results uncover the first phenotypic role for the Sid pathway and identifies the TGN as a central cellular compartment for environmental dsRNA uptake.
Additional file 2 of Identification of the key flavonoid and lipid synthesis proteins in the pulp of two sea buckthorn cultivars at different developmental stages
Creators: name: Du, Wei
name: Ding, Jian
name: Lu, Shunguang
name: Wen, Xiufeng
name: Hu, Jianzhong
name: Ruan, Chengjiang
Publisher: name: figshare
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Plant Biology

description: Additional file 2: Table S2. Primer sequences used in the PCR experiments.
The Copying and Collection of Music in the Trouvère Chansonnier F-Pn fr. 24406
Creators: name: Bleisch, Nicholas
Publisher: name: Apollo - University of Cambridge Repository
Year: 2019
Subjects: trouvère
medieval song
vernacular monophony
manuscript studies
critical editing

description: F-Pn fr. 24406 is a codex of 155 folios containing, along with two Old-French prose works and a series of religious lyrics, 301 vernacular songs, all but one with notation. Despite its rich contents, fr. 24406 rarely receives mention in lists of the most important trouvère chansonniers. The majority of its contents are held in common with several of the other twenty chansonniers with notation. Editors consistently prefer other manuscripts’ musical and textual readings to those of fr. 24406, because of the uniqueness of its readings and its supposed inaccuracy. In this thesis, I argue that modern editorial principles have biased scholarship against perceiving what fr. 24406 has to offer and that both its history and its contents are to be valued. Its music scribes, by their very individuality and even their mistakes, reveal much about the notated transmission of the songs, about the previous existence of now-lost sources, and about the craftsmanship displayed by notators of vernacular monophony. I propose to view what has been seen as sloppiness in fr. 24406 as its flexibility. The medieval songbook, sometimes seen as an obstacle to scholarly access to authored originals or to medieval performances, is treated as in itself a worthy work of art. The thesis traces the themes of flexibility and scribal intelligence through the history of fr. 24406. My point of reference is the moment of copying and thus the thesis divides naturally into three parts: before, during and after copying. I begin after, with the combination shelf-mark’s two component manuscripts. The question of their relationship offers an occasion to trace the book’s usage since its compilation and changing scholarly opinions since its first notice. The task of manuscript description is thus largely accomplished through the lens of secondary scholarship. For the manuscript’s prehistory, I mine codicological evidence and apply musical comparison to demonstrate the existence of multiple lost, notated exemplars for fr. 24406. The final part of the thesis is then devoted to describing the notators against this backdrop. Comparison of notational techniques between sources lets us pinpoint the decisions of fr. 24406’s notators and describe their adaptability, their intelligence, and their craft.
description: This PhD was funded by the Cambridge International Trust
Technical Efficiency of Rice-Producing Households in the Mekong Delta of Vietnam
Creators: name: Huy, Huynh Truong
name: Huy, Huynh Truong
Publisher: name: Unknown
Year: 2009
Subjects: Agricultural and Food Policy
Farm Management
Productivity Analysis

description: Technical Efficiency (TE) is an estimation of the ability of a household to produce the maximum output with the given inputs. It is usually estimated by using the data envelopment analysis (DEA) and stochastic frontier analysis (SFA). Data collected from 261 rice-farming households in the Mekong Delta were used in the empirical analysis. Results show that the average TE among the surveyed households is above 76 percent in both the Constant (CRS) and the Variable Returns to Scale (VRS). The average scale efficiency score for these rice-producing households is nearly one. The determinants of the quantity of rice or yields and of the TE for the households are significantly associated with some variables such as the plot size, seed, and hired labor cost. However, technical inefficiency significantly depends on the farmers’ farming experience and adoption of advanced farming practices.
SPORTCHILARDA OSHQOZON-ICHAK TIZIMI KASALLIKLARI VA FUNKSIONAL DIAGNOSTIK USULLARI
Creators: name: Bo'ronova, Gulsevar
name: Zaynitdinnova, Dilfuza
Publisher: name: Zenodo
Year: 2025

description: Sportchilarning yuqori jismoniy faolligi ularning oshqozon-ichak tizimi salomatligiga bevosita ta’sir qiladi. Ushbu tadqiqotda sportchilarda keng tarqalgan oshqozon-ichak kasalliklari va ularni tashxislashning zamonaviy usullari tahlil qilindi. Tadqiqot natijalari ushbu kasalliklarning oldini olish va samarali davolash yo‘llarini aniqlashga xizmat qiladi.
Supp Fig. 2. Unravelling the Neoproterozoic Accretionary History of Oman, Using an Array of Isotopic Systems in Zircon.
Creators: name: M.L. Blades
name: B.L Alessio
name: A.S. Collins
name: J. Foden
name: J.L. Payne
name: S. Glorie
name: P. Holden
name: B. Thorpe
name: S. Al-Khirbash
Publisher: name: Geological Society of London
Year: 2019
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: Fig. 2 Initial 176Hf/177Hf versus 206Pb/238U age for zircon in all igneous samples. These are used to identify any distinct Pb-loss trends that appear as a horizontal trend on the plot.
Entropy Guided Unsupervised Domain Adaptation for Cross-Center Hip Cartilage Segmentation from MRI
Creators: name: Zeng, Guodong
name: Schmaranzer, Florian
name: Lerch, Till D.
name: Boschung, Adam
name: Zheng, Guoyan
name: Burger, Juergen
name: Gerber, Kate
name: Tannast, Moritz
name: Siebenrock, Klaus
name: Kim, Young-Jo
name: Novais, Eduardo N.
name: Gerber, Nicolas
Publisher: name: Zenodo
Year: 2021

description: Poster: Entropy Guided Unsupervised Domain Adaptation for Cross-Center Hip Cartilage Segmentation from MRI
The Transformation of Food Retail in the Philippines
Creators: name: Romo, Glory Dee
name: Digal, Larry
name: Reardon, Thomas
name: Romo, Glory Dee
name: Digal, Larry
name: Reardon, Thomas
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Food Consumption/Nutrition/Food Safety
subject: Marketing
subject: FOS: Economics and business

description: From a small base by the end of the 1990s, modern retail (the chains selling at least some food) in the Philippines grew very rapidly in the 2000s, at thrice the rate of the country’s GDP growth. Reaching 13 billion USD of overall sales by 2010, 5.25 billion USD of this amount came from food sales. While much of the policy debate about market development focuses on export markets, we will show that supermarkets in the Philippines already sell twice the value (volume priced at export prices) of food that is exported – and modern retail is growing faster. Modern retail has reached 45 percent of urban food retail – already beyond the share of the middle class in the population, and about 35 percent of the national food market – from a tiny fraction of that figure two decades ago. Modern food retail is itself rapidly transforming – with a rise of fresh produce sales, industry concentration, format diversification off-mall into formats that permit greater market penetration, and emerging procurement system modernization. While traditional food retail (and even most aspects of modern food retail) in the Philippines track international experience, the lack of major foreign presence even after retail foreign direct investment (FDI) liberalization in 2000 is a puzzle about which we present hypotheses. Given the already large and increasing importance of food retail modernization in the Philippines, this theme should enter the agrifood research mainstream and be the subject of systematic fi eld survey analysis in order to start discerning its impact on consumers, farmers, wholesalers, and processors.
Radiative Transfer with Finite Elements II. Ly-alpha Line Transfer in Moving Media
Creators: name: Meinkoehn, E.
name: Richling, S.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A finite element method for solving the resonance line transfer problem in moving media is presented. The algorithm works in three spatial dimensions on unstructured grids which are adaptively refined by means of an a posteriori error indicator. Frequency discretization is implemented via a first-order Euler scheme. We discuss the resulting matrix structure for coherent isotropic scattering and complete redistribution. The solution is performed using an iterative procedure, where monochromatic radiative transfer problems are successively solved. The present implementation is applicable for arbitrary model configurations with an optical depth up to 10^(3-4). Results of Ly-alpha line transfer calculations for a spherically symmetric model, a disk-like configuration, and a halo containing three source regions are discussed. We find the characteristic double-peaked Ly-alpha line profile for all models with an optical depth > 1. In general, the blue peak of the profile is enhanced for models with infall motion and the red peak for models with outflow motion. Both velocity fields produce a triangular shape in the two-dimensional Ly-alpha spectra, whereas rotation creates a shear pattern. Frequency-resolved Ly-alpha images may help to find the number and position of multiple Ly-alpha sources located in a single halo. A qualitative comparison with observations of extended Ly-alpha halos associated with high redshift galaxies shows that even models with lower hydrogen column densities than required from profile fitting yield results which reproduce many features in the observed line profiles and two-dimensional spectra.
description: 13 pages, accepted for publication in A&A
Impact of Water Management on Agricultural Production
Creators: name: Haq, Rashida
name: Shafique, Saima
name: Haq, Rashida
name: Shafique, Saima
Publisher: name: Unknown
Year: 2009
Subjects: Agricultural and Food Policy
Crop Production/Industries
Production Economics

description: This paper explores the impact of water management on output, labor, and capital growth for an agriculture-based developing economy like Pakistan. According to empirical findings, capital stock and labor force in the agriculture sector significantly affect output growth. Improvement of capital stock in the form of mechanization, improved seeds, fertilizers and pesticides on one hand, and labor force skills, techniques and management, on the other hand, will bring positive and significant impact on agricultural output. Any improvement in policy management by authorities will enhance agricultural production manifold. Water at farm gate, tube wells, and access to credit of farmers increase agricultural output by enhancing the productivity of capital and labor. Proper water management will result in efficient allocation of resources and has an indirect positive impact on growth of output. To increase overall efficiency, an irrigation technology that efficiently uses water for intensive crop production must be developed.
Additional file 1 of Forest malaria in Cambodia: the occupational and spatial clustering of Plasmodium vivax and Plasmodium falciparum infection risk in a cross-sectional survey in Mondulkiri province, Cambodia
Creators: name: Sandfort, Mirco
name: Vantaux, Amélie
name: Kim, Saorin
name: Obadia, Thomas
name: Pepey, Anaïs
name: Gardais, Soazic
name: Khim, Nimol
name: Lek, Dysoley
name: White, Michael
name: Robinson, Leanne J.
name: Witkowski, Benoit
name: Mueller, Ivo
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology
subject: Computational Biology

description: Additional file 1. Additional tables ST1–ST5 and additional figures S1–S3.