cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Optical Trapping in a Dark Focus
Creators: name: Melo, Bruno
name: Brandão, Igor
name: da Silva, B. Pinheiro
name: Rodrigues, R. B.
name: Khoury, A. Z.
name: Guerreiro, Thiago
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The superposition of a Gaussian mode and a Laguerre-Gauss mode with $\ell=0,p\neq0$ generates the so-called bottle beam: a dark focus surrounded by a bright region. In this paper, we theoretically explore the use of bottle beams as an optical trap for dielectric spheres with a refractive index smaller than that of their surrounding medium. The forces acting on a small particle are derived within the dipole approximation and used to simulate the Brownian motion of the particle in the trap. The intermediate regime of particle size is studied numerically and it is found that stable trapping of larger dielectric particles is also possible. Based on the results of the intermediate regime analysis, an experiment aimed at trapping living organisms in the dark focus of a bottle beam is proposed.
description: 14 pages, 9 figures
UNDERSTANDING THE FOOD STAMP BENEFIT FORMULA: A TOOL FOR MEASURING THE COMPONENT EFFECTS
Creators: name: Wilde, Parke E.
name: Wilde, Parke E.
Publisher: name: Unknown
Year: 2001
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: Food Stamp Program
subject: benefit formula
subject: income
subject: household size
subject: poverty status
subject: deductions

description: This report develops an accounting tool for measuring how the average benefit amount in the U.S. Food Stamp Program is affected by each major component of the rules that determine the benefit level. This tool is used to compare the benefits received by different subpopulations, distinguished by poverty level, demographic makeup, household size, and region of the country. This simple decomposition complements more complex tools, such as microsimulation methods, which help policy analysts understand and evaluate the effects of detailed Food Stamp Program regulations.
Long photometric cycle and disk evolution in the $β$ Lyrae type binary OGLE-BLG-ECL-157529
Creators: name: Mennickent, R. E.
name: Garcés, J.
name: Djurašević, G.
name: Iwanek, P.
name: Schleicher, D.
name: Poleski, R.
name: Soszyński, I.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The subtype of hot algol semidetached binaries dubbed Double Periodic Variables (DPVs) are characterized by a photometric cycle longer than the orbital one, whose nature has been related to a magnetic dynamo in the donor component controlling the mass transfer rate. We aim to understand the morphologic changes observed in the light curve of OGLE-BLG-ECL-157529 that are linked to the long cycle. In particular, we want to explain the changes in relative depth of primary and secondary eclipses. We analyze $I$ and $V$-band OGLE photometric times series spanning 18.5 years and model the orbital light curve. We find that OGLE-BLG-ECL-157529 is a new eclipsing Galactic DPV of orbital period 24\fd8, and that its long cycle length decreases in amplitude and length during the time baseline. We show that the changes of the orbital light curve can be reproduced considering an accretion disk of variable thickness and radius, surrounding the hottest stellar component. Our models indicate changes in the temperatures of hot spot and bright spot during the long cycle, and also in the position of the bright spot. This, along with the changes in disk radius might indicate a variable mass transfer in this system.
description: 8 pages, 14 figures, 2 tables, accepted for publication in Astronomy and Astrophysics
Deliverable 7.8 Report on the events participated
Creators: name: González, Lucía
name: Dalmas, Sebastien
name: Caixach, Ariadna
name: Conde, Cecilia
Publisher: name: Zenodo
Year: 2020
Subjects: CHESS SETUP final conference
CHESS SETUP visual thinking
CHESS SETUO webinars
letters of interest

description: Report of: organization of specific events for the project (kick-off, webinars, final conference...) participation in third parties' events (exhibitions, conferences, congresses...)
High-resolution hyperfine spectroscopy of excited states using electromagnetically-induced transparency
Creators: name: Krishna, Anusha
name: Pandey, Kanhaiya
name: Wasan, Ajay
name: Natarajan, Vasant
Publisher: name: arXiv
Year: 2005
Subjects: subject: Optics (physics.optics)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We use the phenomenon of electromagnetically-induced transparency in a three-level atomic system for hyperfine spectroscopy of upper states that are not directly coupled to the ground state. The three levels form a ladder system: the probe laser couples the ground state to the lower excited state, while the control laser couples the two upper states. As the frequency of the control laser is scanned, the probe absorption shows transparency peaks whenever the control laser is resonant with a hyperfine level of the upper state. As an illustration of the technique, we measure hyperfine structure in the $7S_{1/2}$ states of $^{85}$Rb and $^{87}$Rb, and obtain an improvement of more than an order of magnitude over previous values.
description: 7 pages, 6 figures
AERODYNAMIC LOADS ON BLUFF BODIES UNDER WIND GUSTS
Creators: name: Sreenadh Chevula
Publisher: name: figshare
Year: 2020
Subjects: subject: 90101 Aerodynamics (excl. Hypersonic Aerodynamics)
subject: FOS: Mechanical engineering
subject: Aerospace Engineering
subject: 90199 Aerospace Engineering not elsewhere classified

description: This document presents the Doctoral dissertation entitled “Aerodynamic loads on bluff bodiesunder wind gusts” and has been developed within a research work of the Instituto deMicrogravedad “Ignacio Da Riva” (IDR/UPM) of the University Politécnica de Madrid ( IDR /UPM ).The objective of this thesis is to study the problem of the internal and external aerodynamics loadsacting on bluff bodies under sinusoidal gusty wind conditions. In order to get a good overview ofthis problem a broad phenomenology has been taken into account at the time of reviewing theliterature of aerodynamics, including potential flow theory. Based on the potential flow theorysome mathematical models are developed for predicting the wind loads acting on the bodies undergusty wind conditions.To obtain experimental results with test models under gusty winds, a gust wind tunnel has beenused which is implemented by the IDR/UPM. This gust wind tunnel is built and characterized withthe ability to generate wind gusts.The theoretical models have been tested at various geometrical and physical parameters of thegusty winds and testing body and results are compared with the experimentally measured windloads with suitable conditions, and showing the influence of the most relevant parameters atvarious testing configurations. From the results of the comparison, it has been found that, someempirical methods should be taken in to account to obtain good agreements between experimentaland theoretically predicted wind loads.Finally, the results obtained have been compared to the existing results from the relevant literature,in steady flow case, and the influence of the unsteady flow on bluff bodies has been obtained.
Strangeonium-like hybrids on the lattice
Creators: name: Ma, Yunheng
name: Chen, Ying
name: Gong, Ming
name: Liu, Zhaofeng
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The strangeonium-like $s\bar{s}g$ hybrids are investigated from lattice QCD in the quenched approximation. In the Coulomb gauge, spatially extended operators are constructed for $1^{--}$ and $(0,1,2)^{-+}$ states with the color octet $s\bar{s}$ component being separated from the chromomagnetic field strength by spatial distances $r$, whose matrix elements between the vacuum and the corresponding states are interpreted as Bethe-Salpeter (BS) wave functions. In each of the $(1,2)^{-+}$ channels, the masses and the BS wave functions are reliably derived. The $1^{-+}$ ground state mass is around 2.1-2.2 GeV, and that of $2^{-+}$ is around 2.3-2.4 GeV, while the masses of the first excited states are roughly 1.4 GeV higher. This mass splitting is much larger than the expectation of the phenomenological flux-tube model or constituent gluon model for hybrids, which is usually a few hundred MeV. The BS wave functions with respect to $r$ show clear radial nodal structures of non-relativistic two-body system, which imply that $r$ is a meaningful dynamical variable for these hybrids and motivate a color halo picture of hybrids that the color octet $s\bar{s}$ is surrounded by gluonic degrees of freedom. In the $1^{--}$ channel, the properties of the lowest two states comply with those of $ϕ(1020)$ and $ϕ(1680)$. We have not obtained convincing information relevant to $ϕ(2170)$ yet, however, we argue that whether $ϕ(2170)$ is a conventional $s\bar{s}$ meson or a $s\bar{s}g$ hybrid within the color halo scenario, the ratio of partial decay widths $Γ(ϕη)$ and $Γ(ϕη')$ observed by BESIII can be understood by the mechanism of hadronic transition of a strangeonium-like meson along with the $η-η'$ mixing.
description: 10 pages, 6 figures, to be submitted to Chin. Phys. C
AN ECONOMIC MODEL OF WIC, THE INFANT FORMULA REBATE PROGRAM, AND THE RETAIL PRICE OF INFANT FORMULA
Creators: name: Prell, Mark A.
name: Prell, Mark A.
Publisher: name: Unknown
Year: 2004
Subjects: subject: Food Security and Poverty
subject: WIC program
subject: infant formula
subject: cost containment
subject: rebates
subject: food package costs
subject: Special Supplemental Nutrition Program for Women
subject: Infants
subject: Children
subject: child nutrition
subject: food assistance

description: This report develops an economic model that provides the theoretical framework for the econometric analyses presented in the report's companion volume, WIC and the Retail Price of Infant Formula (FANRR-39). The model examines supermarket retail prices for infant formula in a local market area, and identifies the theoretical effects of the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) and its infant formula rebate program. Special attention is given to the rebate program's sole-source procurement system by which a single manufacturer becomes a State's "contract brand"-the State's one supplier of formula to WIC infants-in exchange for paying rebates to WIC. When a manufacturer's brand is designated a State's contract brand, the model predicts that supermarkets increase that brand's retail price. The model also predicts that an increase in the ratio of WIC to non-WIC formula-fed infants in a local market results in an increase in the price of the contract brand and, through demand substitution, a relatively small price increase for noncontract brands.
Small-x Physics: From HERA to LHC and beyond
Creators: name: Frankfurt, L.
name: Strikman, M.
name: Weiss, C.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We summarize the lessons learned from studies of hard scattering processes in high-energy electron-proton collisions at HERA and antiproton-proton collisions at the Tevatron, with the aim of predicting new strong interaction phenomena observable in next-generation experiments at the Large Hadron Collider (LHC). Processes reviewed include inclusive deep-inelastic scattering (DIS) at small x, exclusive and diffractive processes in DIS and hadron-hadron scattering, as well as color transparency and nuclear shadowing effects. A unified treatment of these processes is outlined, based on factorization theorems of quantum chromodynamics, and using the correspondence between the "parton" picture in the infinite-momentum frame and the "dipole" picture of high-energy processes in the target rest frame. The crucial role of the three-dimensional quark and gluon structure of the nucleon is emphasized. A new dynamical effect predicted at high energies is the unitarity, or black disk, limit (BDL) in the interaction of small dipoles with hadronic matter, due to the increase of the gluon density at small x. This effect is marginally visible in diffractive DIS at HERA and will lead to the complete disappearance of Bjorken scaling at higher energies. In hadron-hadron scattering at LHC energies and beyond (cosmic ray physics), the BDL will be a standard feature of the dynamics, with implications for (a) hadron production at forward and central rapidities in central proton-proton and proton-nucleus collisions, in particular events with heavy particle production (Higgs), (b) proton-proton elastic scattering, (c) heavy-ion collisions. We also outline the possibilities for studies of diffractive processes and photon-induced reactions (ultraperipheral collisions) at LHC, as well as possible measurements with a future electron-ion collider.
description: 64 pages, 20 figures. Review prepared for Annu. Rev. Nucl. Part. Sci
Reliable Tuberculosis Detection using Chest X-ray with Deep Learning, Segmentation and Visualization
Creators: name: Rahman, Tawsifur
name: Khandakar, Amith
name: Kadir, Muhammad Abdul
name: Islam, Khandaker R.
name: Islam, Khandaker F.
name: Mazhar, Rashid
name: Hamid, Tahir
name: Islam, Mohammad T.
name: Mahbub, Zaid B.
name: Ayari, Mohamed Arselene
name: Chowdhury, Muhammad E. H.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Tuberculosis (TB) is a chronic lung disease that occurs due to bacterial infection and is one of the top 10 leading causes of death. Accurate and early detection of TB is very important, otherwise, it could be life-threatening. In this work, we have detected TB reliably from the chest X-ray images using image pre-processing, data augmentation, image segmentation, and deep-learning classification techniques. Several public databases were used to create a database of 700 TB infected and 3500 normal chest X-ray images for this study. Nine different deep CNNs (ResNet18, ResNet50, ResNet101, ChexNet, InceptionV3, Vgg19, DenseNet201, SqueezeNet, and MobileNet), which were used for transfer learning from their pre-trained initial weights and trained, validated and tested for classifying TB and non-TB normal cases. Three different experiments were carried out in this work: segmentation of X-ray images using two different U-net models, classification using X-ray images, and segmented lung images. The accuracy, precision, sensitivity, F1-score, specificity in the detection of tuberculosis using X-ray images were 97.07 %, 97.34 %, 97.07 %, 97.14 % and 97.36 % respectively. However, segmented lungs for the classification outperformed than whole X-ray image-based classification and accuracy, precision, sensitivity, F1-score, specificity were 99.9 %, 99.91 %, 99.9 %, 99.9 %, and 99.52 % respectively. The paper also used a visualization technique to confirm that CNN learns dominantly from the segmented lung regions results in higher detection accuracy. The proposed method with state-of-the-art performance can be useful in the computer-aided faster diagnosis of tuberculosis.
description: 15 pages, 12 figure and 5 Tables
W. Strothmann, Syrische Hymnen zur Myron-Weihe, Wiesbaden 1978
Creators: name: Winkler, G.
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 66 (1982): Oriens christianus, Band 66
ESTIMATING ELIGIBILITY AND PARTICIPATION IN WIC: FOOD ASSISTANCE RESEARCH BRIEF
Creators: name: Oliveira, Victor
name: Blaylock, James R.
name: Oliveira, Victor
name: Blaylock, James R.
Publisher: name: Unknown
Year: 2003
Subjects: Food Consumption/Nutrition/Food Safety
Food Security and Poverty

description: Each year, the United States Department of Agriculture estimates the number of people eligible to participate in the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC), the number who will likely participate, and the expected cost of food. These estimates are used in developing budget requests for WIC, which is funded by appropriations law on an annual basis. If the number of people eligible and likely to participate in WIC is underestimated, the result is a shortage of funds available to fully serve them. If the number of WIC eligibles and participants is overestimated, an inefficient allocation of funds across programs occurs. Estimation of eligibility and participation is a complex process, due to data limitations, varying State program eligibility criteria, and alternate definitions of key variables.
Epilogue—The rhymes, musings and riddles of the International Community of Geological Surveys (ICOGS)
Creators: name: Lebel, Daniel
name: Hill, Philip R.
Publisher: name: Geological Society of London
Year: 2020
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: S1: Schedule for the 34th International Geosurveys Forum in Brisbane
Gymnota Gistel 1848
Creators: name: Bezděk, Jan
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Chrysomelidae
Gymnota

description: Gymnota Gistel, 1848
 Gymnota Gistel, 1848a: 403; GISTEL (1848b): 123; GISTEL (1848c): [9]; GISTEL (1851): 123.
 Type species. Chrysomela populi Linnaeus, 1758, designated by KIPPENBERG (2010).
 Current status. Synonym of Chrysomela Linnaeus, 1758 (see MONRÓS & BECHYNÉ 1956, SEENO & WILCOX 1982, RILEY et al. 2003, KIPPENBERG 2010).
 Comments. Gymnota Gistel, 1848 is also a junior primary homonym of Gymnota Gistel, 1834 (a junior synonym of Ancylocheira Eschscholtz, 1829, in Buprestidae) (see BOUSQUET & BOUCHARD 2017).
description: Published as part of Bezděk, Jan, 2020, Review of the genus-level names proposed by Johannes Gistel in Chrysomelidae (Coleoptera), pp. 173-188 in Acta Entomologica Musei Nationalis Pragae 60 (1) on page 182, DOI: 10.37520/aemnp.2020.011, http://zenodo.org/record/3879369
Epilogue—The rhymes, musings and riddles of the International Community of Geological Surveys (ICOGS)
Creators: name: Lebel, Daniel
name: Hill, Philip R.
Publisher: name: Geological Society of London
Year: 2020
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: S2: Towards an International Consortium of Geological Surveys (ICOGS)
A numerical comparison of theories of violent relaxation
Creators: name: Arad, I.
name: Johansson, P. H.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Using N-body simulations with a large set of massless test particles we compare the predictions of two theories of violent relaxation, the well known Lynden-Bell theory and the more recent theory by Nakamura. We derive ``weaken'' versions of both theories in which we use the whole equilibrium coarse-grained distribution function as a constraint instead of the total energy constraint. We use these weaken theories to construct expressions for the conditional probability $K_i(τ)$ that a test particle initially at the phase-space coordinate $τ$ would end-up in the $i$'th macro-cell at equilibrium. We show that the logarithm of the ratio $R_{ij}(τ) \equiv K_i(τ)/K_j(τ)$ is directly proportional to the initial phase-space density $f_0(τ)$ for the Lynden-Bell theory and inversely proportional to $f_0(τ)$ for the Nakamura theory. We then measure $R_{ij}(τ)$ using a set of N-body simulations of a system undergoing a gravitational collapse to check the validity of the two theories of violent relaxation. We find that both theories are at odds with the numerical results, qualitatively and quantitatively.
description: Replaced with a revised version, which is now accepted to MNRAS. LaTeX, 12 pages, 6 figures
Polarization-dependent laser resonance ionization of beryllium
Creators: name: Li, Ruohong
name: Mostamand, Maryam
name: Romans, Jekabs
name: Lassen, Jens
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: Using TRIUMF's off-line laser ion source test stand with a system of tunable titanium sapphire lasers, the polarization dependence of laser resonance ionization has been investigated using beryllium. A significant polarization dependence was observed for the excitation path $^1$S$_0$$\rightarrow$$^1$P$^{\circ}_1$$\rightarrow$$^1$S$_0$, which are typical transitions for alkaline and alkaline-like elements. This polarization dependence was further verified on Be radioactive isotopes at TRIUMF's isotope separator and accelerator facility (ISAC). Laser polarization was proven to be an important parameter in operating resonance ionization laser ion sources (RILIS). The polarization spectroscopy was preformed off-line both on the 2p$^2$ $^1$S$_0$ autoionizing (AI) state and high-$n$ Rydberg states of the $2sns$ $^1S_0$ and $2snd$ $^1D_2$ series. The energy of the 2p$^2$ $^1$S$_0$ AI state and ionization potential (IP) of beryllium were extracted as 76167(6)~cm$^{-1}$ and 75192.59(3)~cm$^{-1}$. Polarization spectroscopy can be used to determine the $J$ values of newly found states in in-source spectroscopy of the complex/radioactive alkaline-like elements such as Ra, Sm, Yb, Pu and No.
Fission properties of $^{253}$Rf and the stability of neutron-deficient Rf isotopes
Creators: name: Lopez-Martens, A.
name: Hauschild, K.
name: Svirikhin, A. I.
name: Asfari, Z.
name: Chelnokov, M. L.
name: Chepigin, V. I.
name: Dorvaux, O.
name: Forge, M.
name: Gall, B.
name: Isaev, A. V.
name: Izosimov, I. N.
name: Kessaci, K.
name: Kuznetsova, A. A.
name: Malyshev, O. N.
name: Mukhin, R. S
name: Popeko, A. G.
name: Popov, Yu. A.
name: Sailaubekov, B.
name: Sokol, E. A.
name: Tezekbayeva, M. S.
name: Yeremin, A. V.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: An analysis of recent experimental data [J. Khuyagbaatar et al., Phys. Rev. C 104, L031303 (2021)] has established the existence of two fissioning states in $^{253}$Rf: the ground state and a low-lying isomeric state, most likely involving the same neutron single-particle configurations as in the lighter isotone $^{251}$No. The ratio of fission half-lives measured in $^{253}$Rf was used to predict the fission properties of the 1/2$^{+}$ isomeric state in $^{251}$No and draw conclusions as to the stability against fission of even lighter Rf systems. This paper focusses again on the fission properties of $^{253}$Rf and their impact on the stability of other neutron deficient isotopes, using new and improved data collected from two experiments performed at the Flerov Laboratory of Nuclear Reactions in Dubna, Russia. Two fission activities with half-lives of 52.8(4.4)$~μ$s and 9.9(1.2) ms were measured in the case of $^{253}$Rf, confirming the results of J. Kkuyagbaatar et al. A third state, at much higher excitation energy, was also observed through the detection of its electromagnetic decay to the 52.8$~μ$s state. This observation leads to the opposite quantum-configuration assignments for the fissioning states as compared to the ones established by J. Khuyagbaatar et al., namely that the higher-spin state has the shortest fission half-life. This inversion of the ratio of fission hindrances between the low and high-spin states is corroborated in the isotone $^{251}$No by the non observation of any substantial fission branch from the low-spin isomer.
Broad-band photometric colors and effective temperature calibrations for late-type giants. I. Z=0.02
Creators: name: Kucinskas, A.
name: Hauschildt, P. H.
name: Ludwig, H. -G.
name: Brott, I.
name: Vansevicius, V.
name: Lindegren, L.
name: Tanabe, T.
name: Allard, F.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present new synthetic broad-band photometric colors for late-type giants based on synthetic spectra calculated with the PHOENIX model atmosphere code. The grid covers effective temperatures T_eff=3000...5000K, gravities log g=-0.5...+3.5, and metallicities [M/H]=+0.5...-4.0. We show that individual broad-band photometric colors are strongly affected by model parameters such as molecular opacities, gravity, microturbulent velocity, and stellar mass. Our exploratory 3D modeling of a prototypical late-type giant shows that convection has a noticeable effect on the photometric colors too, as it alters significantly both the vertical and horizontal thermal structures in the outer atmosphere. The differences between colors calculated with full 3D hydrodynamical and 1D model atmospheres are significant (e.g., Δ(V-K)~0.2 mag), translating into offsets in effective temperature of up to ~70K. For a sample of 74 late-type giants in the Solar neighborhood, with interferometric effective temperatures and broad-band photometry available in the literature, we compare observed colors with a new PHOENIX grid of synthetic photometric colors, as well as with photometric colors calculated with the MARCS and ATLAS model atmosphere codes. (abridged)
description: 30 pages, 21 figures, A&A in press. Table 2 can be obtained from the CDS or directly from the authors
J. Martikainen, Gerechtigkeit und Güte Gottes, Wiesbaden 1981
Creators: name: Beck, Edmund
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 66 (1982): Oriens christianus, Band 66
Survey on Congestion Detection and Control in Connected Vehicles
Creators: name: Paranjothi, Anirudh
name: Khan, Mohammad S.
name: Zeadally, Sherali
Publisher: name: arXiv
Year: 2020
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: The dynamic nature of vehicular ad hoc network (VANET) induced by frequent topology changes and node mobility, imposes critical challenges for vehicular communications. Aggravated by the high volume of information dissemination among vehicles over limited bandwidth, the topological dynamics of VANET causes congestion in the communication channel, which is the primary cause of problems such as message drop, delay, and degraded quality of service. To mitigate these problems, congestion detection, and control techniques are needed to be incorporated in a vehicular network. Congestion control approaches can be either open-loop or closed loop based on pre-congestion or post congestion strategies. We present a general architecture of vehicular communication in urban and highway environment as well as a state-of-the-art survey of recent congestion detection and control techniques. We also identify the drawbacks of existing approaches and classify them according to different hierarchical schemes. Through an extensive literature review, we recommend solution approaches and future directions for handling congestion in vehicular communications.
The effects of environmental contaminants on metamorphosis in Rana catesbeiana and sperm motility in Xenopus laevis
Creators: name: Christensen, Jennie Rebecca
Publisher: name: University of British Columbia
Year: 2009

description: The objectives of this research were to observe the effects of specific contaminants on different amphibian species at various times of their life cycles, namely metamorphosis and fertilization. The effects of a non-ionic surfactant, Nonylphenol (NP), on Rana catesbeiana (bullfrog) tadpole metamorphic staging and tail resorption were examined, along with the effects of pH, osmolality and a divalent metal ion, Zinc (Zn²⁺), on Xenopus laevis (African clawed frog) sperm motility and kinematics. I hypothesized that 1) NP would have indirect sub-lethal effects on thyroid hormone function by disrupting metamorphosis in bullfrog tadpoles, and 2) aquatic parameters (pH, osmolality and Zn²⁺ concentration) would have significant effects on percent sperm motility, velocities and kinematics. This latter hypothesis was the basis for the development of the Amphibian Sperm Inhibition Toxicological Test (ASITT) method. To test the effect of NP on metamorphosis, there were 3 NP concentrations used (234, 468 and 936 ug/L) in both the presence and absence of 3,3',5-triiodothyronine (T₃), a well water control, a T₃ control and a solvent control for a total of 9 treatments with three replicates each. Tadpoles were exposed for 7 days whereupon tail length, width, and metamorphic staging was measured. NP had a significant effect on tail length and metamorphic staging in the absence of T₃, causing an increase in tail length and a decrease in limb development, respectively, with increasing NP concentrations. In the presence of T₃, increasing NP caused a significant reduction in cranial transformation. These results suggest an indirect inhibition of T₃ during tadpole metamorphosis. For the development of ASITT, first the effects of pH and osmolality on sperm motility had to be determined. The pH 7.0 and 56.625 mosmol/L treatments gave the highest percent motility and the control solution for ASITT was then developed using these solution parameters. Zn²⁺ was used for preliminary validation of ASITT method. It was added to the control solution in concentrations from 0 to 1,417 μg/L for 7 treatments each with 12 replicates. Increasing Zn²⁺ concentrations caused a significant decrease in percent total motile sperm and progressive sperm. Straight line velocity increased with increasing Zn²⁺ concentrations. These results suggest that Zn²⁺ is inhibiting the sperm at early stages of motility, possibly by preventing calcium influxes into the cell or inhibiting cellular respiration.
Two-Loop QCD Corrections to the Heavy Quark Form Factors: Anomaly Contributions
Creators: name: Bernreuther, W.
name: Bonciani, R.
name: Gehrmann, T.
name: Heinesch, R.
name: Leineweber, T.
name: Remiddi, E.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present closed analytic expressions for the order $α_s^2$ triangle diagram contributions to the matrix elements of the singlet and non-singlet axial vector currents between the vacuum and a quark-antiquark state. We have calculated these vertex functions for arbitrary momentum transfer and for four different sets of internal and external quark masses. We show that both the singlet and non-singlet vertex functions satisfy the correct chiral Ward identities. Using the exact expressions for the finite axial vector form factors, we check the quality and the convergence of expansions at production threshold and for asymptotic energies.
description: 24 pages, 6 figures
Aerodynamic-Internal-Pressure-Loads-Applied-On-Nonstructural-Elements-under-Wind-Gusts.pdf
Creators: name: Sreenadh Chevula
Publisher: name: figshare
Year: 2020
Subjects: subject: Aerospace Engineering
subject: FOS: Mechanical engineering
subject: 90199 Aerospace Engineering not elsewhere classified
subject: 90101 Aerodynamics (excl. Hypersonic Aerodynamics)

description: Vent holes can be used to reduce the aerodynamic pressure loads on nonstructural elements of buildings. The analysis of these loads applied on nonstructural elements of buildings (window panes, closure panels, etc.) with vent holes, under gusty wind conditions, have been studied both experimentally and employing a theoretical model. An experimental setup based on an open circuit, closed test section, and low speed wind tunnel, designed and built at the Instituto de Microgravedad “Ignacio Da Riva” of the Universidad Politécnica de Madrid (IDR/UPM) has been used. A mechanism in the wind tunnel generates sinusoidal gusty winds inside the test section. Theoretical predictions of the pressure loads have been obtained using a mathematical model based on the mass conservation equation and polytropic law gas evolution. In the experimental setup, an air reservoir with a vent hole has been selected as a model to simulate the internal pressure loads acting on the walls of a building under a tangential unsteady (gusty) flow. The pressure jumps developed across the vent holes have been studied as a function of vent hole size, air reservoir volume, and gust frequency. In this work, the results for the case of small pressure jumps across the vent hole have been presented, which is the case of most practical interest, in order to reduce the pressure load on the elements.The evolution of the pressure loss coefficient ξ, at unsteady flow conditions has been studied, and it has been found that its value is not constant in a gusty wind, but depends both on the frequency of the gust and on the direction of the flow through the vent hole (either inhalation or exhalation).
Time Minimal Trajectories for a Spin 1/2 Particle in a Magnetic Field
Creators: name: Boscain, Ugo
name: Mason, Paolo
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper we consider the minimum time population transfer problem for the $z$-component of the spin of a (spin 1/2) particle driven by a magnetic field, controlled along the x axis, with bounded amplitude. On the Bloch sphere (i.e. after a suitable Hopf projection), this problem can be attacked with techniques of optimal syntheses on 2-D manifolds. Let $(-E,E)$ be the two energy levels, and $|Ω(t)|\leq M$ the bound on the field amplitude. For each couple of values $E$ and $M$, we determine the time optimal synthesis starting from the level $-E$ and we provide the explicit expression of the time optimal trajectories steering the state one to the state two, in terms of a parameter that can be computed solving numerically a suitable equation. For $M/E<<1$, every time optimal trajectory is bang-bang and in particular the corresponding control is periodic with frequency of the order of the resonance frequency $ω_R=2E$. On the other side, for $M/E>1$, the time optimal trajectory steering the state one to the state two is bang-bang with exactly one switching. Fixed $E$ we also prove that for $M\to\infty$ the time needed to reach the state two tends to zero. In the case $M/E>1$ there are time optimal trajectories containing a singular arc. Finally we compare these results with some known results of Khaneja, Brockett and Glaser and with those obtained by controlling the magnetic field both on the $x$ and $y$ directions (or with one external field, but in the rotating wave approximation). As byproduct we prove that the qualitative shape of the time optimal synthesis presents different patterns, that cyclically alternate as $M/E\to0$, giving a partial proof of a conjecture formulated in a previous paper.
description: 31 pages, 10 figures, typos corrected
Ergonomics Tools To Improve Post Harvest Productivity OF Arachys Hypogaea-2.pdf
Creators: name: Adhe Rizky Anugerah
Publisher: name: figshare
Year: 2020
Subjects: subject: 120305 Industrial Design
subject: FOS: Arts (arts, history of arts, performing arts, music)

description: Indonesia is one of the biggest producers on agriculture in the world. One of Indonesia's main commodities in agriculture is Arachys hypogaea L. Merr or commonly called as peanuts. The demand of peanuts is increasing every year. Unfortunately, peanut production is no able to cover the demand because the postharvest process takes a long time. This study aims to design a tool help peanuts farmer to do cutting, washing, and spinning process. Quality Function Deployment technique is utilised for designing such tool. After developed, such tool has been tested and shows that proposed tool could improve productivity of peanuts product up to 300%.
Harpax Gistel 1848
Creators: name: Bezděk, Jan
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Chrysomelidae
Harpax

description: Harpax Gistel, 1848, syn. nov.
 Harpax Gistel, 1848b: xi; GISTEL (1851): xi.
 Current status. New junior objective synonym of Strichosa Chevrolat, 1843.
 Comments. Harpax Gistel, 1848 was proposed as an unnecessary new replacement name for Strichosa Chevrolat, 1843 (GISTEL 1848b). It is also a junior primary homonym of Harpax Parkinson, 1811 in Mollusca, Harpax Audinet- Serville, 1831 in Orthoptera and Harpax Gistel, 1848: viii in Mollusca.
description: Published as part of Bezděk, Jan, 2020, Review of the genus-level names proposed by Johannes Gistel in Chrysomelidae (Coleoptera), pp. 173-188 in Acta Entomologica Musei Nationalis Pragae 60 (1) on page 182, DOI: 10.37520/aemnp.2020.011, http://zenodo.org/record/3879369
SOLID WASTE MANAGEMENT METHODS AND COSTS IN INDEPENDENT RETAIL FOOD STORES
Creators: name: Toensmeyer, Ulrich C.
name: Sloan, Thomas C.
name: Toensmeyer, Ulrich C.
name: Sloan, Thomas C.
Publisher: name: Unknown
Year: 1975
Subjects: Agribusiness

description: The authors provide an analysis of the types of solid wastes and their removal costs in independent retail food stores.
Large deviations for a stochastic model of heat flow
Creators: name: Bertini, Lorenzo
name: Gabrielli, Davide
name: Lebowitz, Joel L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We investigate a one dimensional chain of $2N$ harmonic oscillators in which neighboring sites have their energies redistributed randomly. The sites $-N$ and $N$ are in contact with thermal reservoirs at different temperature $τ_-$ and $τ_+$. Kipnis, Marchioro, and Presutti \cite{KMP} proved that this model satisfies {}Fourier's law and that in the hydrodynamical scaling limit, when $N \to \infty$, the stationary state has a linear energy density profile $\bar θ(u)$, $u \in [-1,1]$. We derive the large deviation function $S(θ(u))$ for the probability of finding, in the stationary state, a profile $θ(u)$ different from $\bar θ(u)$. The function $S(θ)$ has striking similarities to, but also large differences from, the corresponding one of the symmetric exclusion process. Like the latter it is nonlocal and satisfies a variational equation. Unlike the latter it is not convex and the Gaussian normal fluctuations are enhanced rather than suppressed compared to the local equilibrium state. We also briefly discuss more general model and find the features common in these two and other models whose $S(θ)$ is known.
description: 28 pages, 0 figures
The challenges and prospects of the intersection of humanities and data science: A White Paper from The Alan Turing Institute
Creators: name: McGillivray, Barbara
Publisher: name: figshare
Year: 2020
Subjects: Uncategorized

description: This paper was produced as part of the activities of the Humanities and Data Science Special Interest Group based at The Alan Turing Institute. The group has created the opportunity for fruitful conversations in this area and has brought together voices from a range of different disciplinary backgrounds. This document shows an example of how conversations of this type can benefit and advance computational methods and understandings in and between the humanities and data science, bringing together a diverse community. We believe the Turing can act as a nexus of discussion on humanities and data science research at the national (and international) level, in areas such as education strategy, research best practices, and funding policy, and can promote and encourage research activities in this interdisciplinary area.
An effective two-dimensional model for MHD flows with transverse magnetic field
Creators: name: Pothérat, Alban
name: Sommeria, Joël
name: Moreau, René
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: This paper presents a model for quasi two-dimensional MHD flows between two planes with small magnetic Reynolds number and constant transverse magnetic field orthogonal to the planes. A method is presented that allows to take 3D effects into account in a 2D equation of motion thanks to a model for the transverse velocity profile. The latter is obtained by using a double perturbation asymptotic development both in the core flow and in the Hartmann layers arising along the planes. A new model is thus built that describes inertial effects in these two regions. Two separate classes of phenomena are thus pointed out : the one related to inertial effects in the Hartmann layer gives a model for recirculating flows and the other introduces the possibility of having a transverse dependence of the velocity profile in the core flow. The ''recirculating'' velocity profile is then introduced in the transversally averaged equation of motion in order to provide an effective 2D equation of motion. Analytical solutions of this model are obtained for two experimental configurations : isolated vortices aroused by a point electrode and axisymmetric parallel layers occurring in the MATUR (MAgneticTURbulence) experiment. The theory is found to give a satisfactory agreement with the experiment so that it can be concluded that recirculating flows are actually responsible for both vortices core spreading and excessive dissipative behavior of the axisymmetric side wall layers.
Field dependence of magnetic ordering in Kagome-staircase compound Ni3V2O8
Creators: name: Kenzelmann, M.
name: Harris, A. B.
name: Aharony, A.
name: Entin-Wohlman, O.
name: Yildirim, T.
name: Huang, Q.
name: Park, S.
name: Lawes, G.
name: Broholm, C.
name: Rogado, N.
name: Cava, R. J.
name: Kim, K. H.
name: Jorge, G.
name: Ramirez, A. P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present powder and single-crystal neutron diffraction and bulk measurements of the Kagome-staircase compound Ni3V2O8 (NVO) in fields up to 8.5T applied along the c-direction. (The Kagome plane is the a-c plane.) This system contains two types of Ni ions, which we call "spine" and "cross-tie". Our neutron measurements can be described with the paramagnetic space group Cmca for T < 15K and each observed magnetically ordered phase is characterized by the appropriate irreducible representation(s). Our zero-field measurements show that at T_PH=9.1K NVO undergoes a transition to an incommensurate order which is dominated by a longitudinally-modulated structure with the spine spins mainly parallel to the a-axis. Upon further cooling, a transition is induced at T_HL=6.3K to an elliptically polarized incommensurate structure with both spine and cross-tie moments in the a-b plane. At T_LC=4K the system undergoes a first-order phase transition, below which the magnetic structure is a commensurate antiferromagnet with the staggered magnetization primarily along the a-axis and a weak ferromagnetic moment along the c-axis. A specific heat peak at T_CC'=2.3K indicates an additional transition, which we were however not able to relate to a change of the magnetic structure. Neutron, specific heat, and magnetization measurements produce a comprehensive temperature-field phase diagram. The symmetries of the two incommensurate magnetic phases are consistent with the observation that only one phase has a spontaneous ferroelectric polarization. All the observed magnetic structures are explained theoretically using a simplified model Hamiltonian, involving competing nearest- and next-nearest-neighbor exchange interactions, spin anisotropy, Dzyaloshinskii-Moriya and pseudo-dipolar interactions.
description: 25 pages, 19 figures
EVALUATING FOOD SERVICE PRODUCTIVITY BY ACCURATE MEASUREMENTS
Creators: name: Bragg, Errol R.
name: Freshwater, John F.
name: Bragg, Errol R.
name: Freshwater, John F.
Publisher: name: Unknown
Year: 1975
Subjects: Productivity Analysis

description: The authors stress the shortcomings and strong points of productivity measures utilized in the institutional market.
Timelike and Spacelike Matter Inheritance Vectors in Specific Forms of Energy-Momentum Tensor
Creators: name: Sharif, M.
name: Sheikh, Umber
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: This paper is devoted to the investigation of the consequences of timelike and spacelike matter inheritance vectors in specific forms of energy-momentum tensor, i.e., for string cosmology (string cloud and string fluid) and perfect fluid. Necessary and sufficient conditions are developed for a spacetime with string cosmology and perfect fluid to admit a timelike matter inheritance vector, parallel to $u^a$ and spacelike matter inheritance vector, parallel to $x^a$. We compare the outcome with the conditions of conformal Killing vectors. This comparison provides us the conditions for the existence of matter inheritance vector when it is also a conformal Killing vector. Finally, we discuss these results for the existence of matter inheritance vector in the special cases of the above mentioned spacetimes.
description: 27 pages, accepted for publication in Int. J. of Mod. Phys. A
Bypassing the axial anomalies
Creators: name: Kekez, D.
name: Klabucar, D.
name: Scadron, M. D.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Many meson processes are related to the U_A(1) axial anomaly, present in the Feynman graphs where fermion loops connect axial vertices with vector vertices. However, the coupling of pseudoscalar mesons to quarks does not have to be formulated via axial vertices. The pseudoscalar coupling is also possible, and this approach is especially natural on the level of the quark substructure of hadrons. In this paper we point out the advantages of calculating these processes using (instead of the anomalous graphs) the Feynman graphs where axial vertices are replaced by pseudoscalar vertices. We elaborate especially the case of the processes related to the Abelian axial anomaly of QED, but we speculate that it seems possible that effects of the non-Abelian axial anomaly of QCD can be accounted for in an analogous way.
description: 12 pages, 4 figures, uses ws-ijmpa.cls, published in the proceedings of MRST 2005 conference, Utica, New York, 16-18 May 2005
Phase diagram of a cold polarized Fermi gas
Creators: name: Son, D. T.
name: Stephanov, M. A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We propose a phase diagram for a cold polarized atomic Fermi gas with zero-range interaction. We identify four main phases in the plane of density and polarization: the superfluid phase, the normal phase, the gapless superfluid phase, and the modulated phase. We argue that there exists a Lifshitz point at the junction of the normal, the gapless superfluid, and the modulated phases, and a splitting point where the superfluid, the gapless superfluid, and the modulated phases meet. We show that the physics near the splitting point is universal and derive an effective field theory describing it. We also show that subregions with one and two Fermi surfaces exist within the normal and the gapless superfluid phases.
description: 6 pages, 5 figures; added an Appendix on the global stability of the splitting point