cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Projection of harvestable water from air humidity using artificial neural network (Case study: Chabahar Port)
Creators: name: Amiri Khaledi, Chakavak Khajeh
Publisher: name: Italian Journal of Agrometereology
Year: 2019

description: The optimum use of existing water resources as well as the efforts to achieve new water resources have been considered as two major solutions to the relative resolution of water scarcity. Through utilization of the information and meteorological data, it is possible to identify areas with potentials for water harvesting from air humidity. It also allows for collecting and converting them into fresh water using simple physical laws. Due to lack of atmospheric precipitations or inappropriate distribution of precipitations in Chabahar, located in the south of Sistan and Baluchistan province, Iran, water is a limiting factor for agricultural activities and even for the entire life. In this study, water was harvested from air humidity using a screen collector with dimensions of 1×1 m. The magnitude of water harvesting was monitored daily for a period of 365 days. The results revealed that approximately 20% of the water available in the air could be extracted in this area. Then, monthly meteorological data from Chabahar synoptic station between 1990 and 2011 was used to predict the harvestable water for the upcoming year using an artificial neural network. After determining the effective input variables in predicting the amount of harvestable water, the modeling was performed using Multi-Layer Perceptron Network (MLP) and General Feed Forward Network. The results indicated that the MLP network had a higher ability to predict the amount of harvestable water when compared to the GFF network (at the R2 test stage it was 0.86 versus 0.44). The most suitable structure to predict harvestable water from the fog in Chabahar was the MLP Artificial Neural Network with the array of 12-1-25 and the Hyperbolic Tangent Stimulus Function with the Lewenburg Marquette Training Law. Also, the values ​​of the RMSE and MAE error rates were 2.19 and 1.81, respectively. Therefore, it is possible to predict the amount of harvestable water in the next 12 months which can be used in water resources management and productivity.
description: Italian Journal of Agrometereology, No 1 (2019)
Reconciling the 16.35-day period of FRB 20180916B with jet precession
Creators: name: Chen, Hao-Yan
name: Gu, Wei-Min
name: Sun, Mouyuan
name: Liu, Tong
name: Yi, Tuan
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: A repeating fast radio burst (FRB), FRB 20180916B (hereafter FRB 180916), was reported to have a 16.35-day period. This period might be related to a precession period. In this paper, we investigate two precession models to explain the periodic activity of FRB 180916. In both models, the radio emission of FRB 180916 is produced by a precessing jet. For the first disk-driven jet precession model, an extremely low viscous parameter (i.e., the dimensionless viscosity parameter $α\lesssim 10^{-8}$) is required to explain the precession of FRB 180916, which implies its implausibility. For the second tidal force-driven jet precession model, we consider a compact binary consists of a neutron star/black hole and a white dwarf; the white dwarf fills its Roche lobe and mass transfer occurs. Due to the misalignment between the disk and orbital plane, the tidal force of the white dwarf can drive jet precession. We show that the relevant precession periods are several days to hundreds of days, depending on the specific accretion rates and component masses. The duration of FRB 180916 generation in the binary with extremely high accretion rate will be several thousand years.
description: 12 pages, 4 figures, accepted for publication in ApJ
"HEPData_pyhf_workspace.tar.gz" of "Evidence for the $VH, H\rightarrow \tau\tau$ process with the ATLAS detector in Run 2"
Creators: name: ATLAS Collaboration
Publisher: name: HEPData
Year: 2024

description: Archive of full likelihoods in the HistFactory JSON format.
description: A measurement of the Standard Model Higgs boson produced inassociation with a $W$ or $Z$ boson and decaying into a pair of$\tau$-leptons is presented.This search is based on proton-proton collision data collected at$\sqrt{s}=13$\, TeV by the ATLAS experiment at the LHC correspondingto an integrated luminosity of 140 fb$^{-1}$. For the Higgs bosoncandidate, only final states with at least one $\tau$-lepton decayinghadronically ($\tau\rightarrow \mathrm{hadrons} + \nu_\tau$) areconsidered. For the vector bosons, only leptonic decay channels areconsidered: $Z \rightarrow \ell\ell$ and $W\rightarrow \ell\nu_\ell$,with $\ell=e,\mu$. An excess of events over the expected background is found with anobserved (expected) significance of 4.2 (3.6) standard deviations,providing evidence of the Higgs boson produced in association with avector boson and decaying into a pair of $\tau$-leptons. The ratio ofthe measured cross-section to the Standard Model prediction is $\mu_{\text{VH}}^{\tau\tau} = 1.28\ ^{+0.30}_{-0.29}\ (\mathrm{stat.})\ ^{+0.25}_{-0.21}\ (\mathrm{syst.})$.
Schoengastia monticola Lawrence 1949
Creators: name: Stekolnikov, Alexandr A.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Trombiculidae
Schoengastia
Schoengastia monticola

description: Schoengastia monticola Lawrence, 1949
Schoengastia monticola Lawrence, 1949: 425, fig. 12.
Schoengastia monticola – Wharton & Fuller 1952: 88. — Vercammen-Grandjean 1958b: 658, pl. 9.
Schoengastia (Schoengastia) monticola – Zumpt 1961: 157. — Vercammen-Grandjean 1965c: 82.
Syntypes
NMSA 4827.
Material revised
One paratype from BMNH (1957.8.12.39).
Distribution
South Africa (Champagne Castle).
Host
Pseudocordylus subviridis.
description: Published as part of Stekolnikov, Alexandr A., 2018, Taxonomy and distribution of African chiggers (Acariformes, Trombiculidae), pp. 1-233 in European Journal of Taxonomy 395 on page 82, DOI: 10.5852/ejt.2018.395, http://zenodo.org/record/3829724
Proof of a decomposition theorem for symmetric tensors on spaces with constant curvature
Creators: name: Straumann, Norbert
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In cosmological perturbation theory a first major step consists in the decomposition of the various perturbation amplitudes into scalar, vector and tensor perturbations, which mutually decouple. In performing this decomposition one uses -- beside the Hodge decomposition for one-forms -- an analogous decomposition of symmetric tensor fields of second rank on Riemannian manifolds with constant curvature. While the uniqueness of such a decomposition follows from Gauss' theorem, a rigorous existence proof is not obvious. In this note we establish this for smooth tensor fields, by making use of some important results for linear elliptic differential equations.
description: 4 pages, accepted for publication in Annalen der Physik
"abstract.txt" of "Evidence for the $VH, H\rightarrow \tau\tau$ process with the ATLAS detector in Run 2"
Creators: name: ATLAS Collaboration
Publisher: name: HEPData
Year: 2024

description: Original abstract file
description: A measurement of the Standard Model Higgs boson produced inassociation with a $W$ or $Z$ boson and decaying into a pair of$\tau$-leptons is presented.This search is based on proton-proton collision data collected at$\sqrt{s}=13$\, TeV by the ATLAS experiment at the LHC correspondingto an integrated luminosity of 140 fb$^{-1}$. For the Higgs bosoncandidate, only final states with at least one $\tau$-lepton decayinghadronically ($\tau\rightarrow \mathrm{hadrons} + \nu_\tau$) areconsidered. For the vector bosons, only leptonic decay channels areconsidered: $Z \rightarrow \ell\ell$ and $W\rightarrow \ell\nu_\ell$,with $\ell=e,\mu$. An excess of events over the expected background is found with anobserved (expected) significance of 4.2 (3.6) standard deviations,providing evidence of the Higgs boson produced in association with avector boson and decaying into a pair of $\tau$-leptons. The ratio ofthe measured cross-section to the Standard Model prediction is $\mu_{\text{VH}}^{\tau\tau} = 1.28\ ^{+0.30}_{-0.29}\ (\mathrm{stat.})\ ^{+0.25}_{-0.21}\ (\mathrm{syst.})$.
Schoengastia gerrhosauri Lawrence 1949
Creators: name: Stekolnikov, Alexandr A.
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Trombiculidae
Schoengastia
Schoengastia gerrhosauri

description: Schoengastia gerrhosauri Lawrence, 1949
(Fig. 15A)
Schoengastia gerrhosauri Lawrence, 1949: 426, fig. 13; Wharton & Fuller 1952: 88; Vercammen-Grandjean 1958b: 659, pl. 9; Stekolnikov 2018: 78.
Schoengastia (Schoengastia) gerrhosauri: Zumpt 1961: 155; Vercammen-Grandjean 1965b: 81.
Diagnosis. AL> PL >>AM; fD = 2H-9-6-6-4-2-2; DS = 31; V = 24; NDV = 55; scutum pentagonal, with moderately projected posterior margin nearly straight in middle; sensillary bases slightly anterior to level of PLs (by 2 µm); Ip = 787. Standard measurements are given in Table 6.
Distribution and hosts. This species was described from (1) Kranskop, Natal (currently KwaZulu-Natal Prov., South Africa), ex Gerrhosaurus flavigularis Wiegmann (Squamata: Gerrhosauridae); (2) Weenen, Kranskop, and Pietermaritzburg, Natal, ex Trachylepis striata (syn. Mabuya striata); (3) Muller’s pass, Newcastle, Natal, ex Pseudocordylus subviridis.
Material examined. One paratype, larva deposited in NHM (1957-8-12 -36), NM 4833, ex G. flavigularis, Kranskop, collector and date unknown (Fig. 1, 24).
Remarks. I was unable to examine gnathosoma and legs of the paratype, which I found in NHM; thus, I give here only measurements and a photography of the scutum. The single non-type specimen deposited in NM was found unsuitable for examination.
Schoengastia gerrhosauri differs from S. monticola in a shorter scutum (ASB 27 vs. 30–33, SD 54 vs. 58–62), shorter PL (43 vs. 48–54), shorter dorsal idiosomal setae (H 38 vs. 40–47, D min 25 vs. 29–36, and D max 31 vs. 38–44), and shorter legs (Ip 787 vs. 889–913). Examination of new materials would add more diagnostic characters.
description: Published as part of Stekolnikov, Alexandr A., 2024, Revision of South African chiggers (Acariformes: Trombiculidae) originated from the collection of R. F. Lawrence, with redescriptions of nine species, pp. 1-35 in Zootaxa 5493 (1) on page 26, DOI: 10.11646/zootaxa.5493.1.1, http://zenodo.org/record/13269183
Effect of drought and nitrogen fertilisation on quinoa (Chenopodium quinoa Willd.) under field conditions in Burkina Faso
Creators: name: Alvar-Beltrán, Jorge
name: Saturnin, Coulibaly
name: Dao, Abdalla
name: Dalla Marta, Anna
name: Sanou, Jacob
name: Orlandini, Simone
Publisher: name: Italian Journal of Agrometereology
Year: 2019

description: Chenopodium quinoa (Willd.) is an herbaceous C3 crop originating in the Andean Altiplano. Quinoa possesses a great deal of genetic variability, can adapt to diverse climatic conditions, besides of having seeds with high nutritional properties. An experiment conducted in Burkina Faso has determined the response of two quinoa varieties (Titicaca and Negra Collana) to different planting dates (November vs December), irrigation levels (Potential evapotranspiration-PET, 100, 80 and 60% PET), and N fertilization rates (100, 50 and 25 kg N ha-1). Main research findings have shown that quinoa can be highly performant under drought stress conditions and low nitrogen inputs, besides of coping with high temperatures typically of the Sahel. The highest yields (1.9 t ha-1) were achieved when sown in November at 60 % PET and 25 kg N ha-1. For this location, short cycle varieties, such as Titicaca, were recommended in order to avoid thermic stress conditions occurring prior to the onset of the rainy season (May-October).
description: Italian Journal of Agrometereology, No 1 (2019)
Network synchronization: Spectral versus statistical properties
Creators: name: Atay, Fatihcan M.
name: Biyikoglu, Turker
name: Jost, Juergen
Publisher: name: arXiv
Year: 2007
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: We consider synchronization of weighted networks, possibly with asymmetrical connections. We show that the synchronizability of the networks cannot be directly inferred from their statistical properties. Small local changes in the network structure can sensitively affect the eigenvalues relevant for synchronization, while the gross statistical network properties remain essentially unchanged. Consequently, commonly used statistical properties, including the degree distribution, degree homogeneity, average degree, average distance, degree correlation, and clustering coefficient, can fail to characterize the synchronizability of networks.
Experimental quantum chemistry by binary (e,2e) spectroscopy
Creators: name: Leung, Kam Tong
Publisher: name: University of British Columbia
Year: 2010

description: The notion that chemists might benefit by looking at molecular orbitals and chemical bonding phenomena from the complementary momentum-space perspective was first suggested by Coulson and Duncanson some forty years ago. With the development of binary (e,2e) spectroscopy in the last decade, experimental momentum densities of individual orbitals can now be measured directly and this has provided the first "real" look at molecular bonding in the laboratory. Binary (e,2e) spectroscopy measures the binding energy spectrum and the spherically averaged momentum distribution using high energy electron impact ionization and coincidence detection techniques. The experimental orbital momentum distributions not only have helped to identify the symmetry (s-type or p-type), order and nature of the characteristic orbital involved in the ionization process, but also have made it possible to stringently evaluate the quality of ab-initio self-consistent-field wavefunctions. The valence-shell binding energy spectra and momentum distributions of the noble gases and a number of small molecules including H₂, CO₂, CS₂, OCS and CF₄ have been measured using a state-of-the-art binary (e,2e) spectrometer. An existing spectrometer has been modified to provide high momentum and timing resolutions as well as sufficient energy resolution for resolving most of the structures of the species reported. New and definitive results on the valence- shell electronic structure and orbital bonding pattern of these species have been obtained. Possible chemical trends in the electronic structure and orbital densities in the noble gas group and in the valence isoelectronic linear triatomic group: CO₂, CS₂, and OCS have been investigated. Computer generated density contour maps and three-dimensional orbital density visualization of theoretical wavefunctions in both position and momentum space are used to facilitate interpretation of the experimental momentum distributions. This density topographical approach is instrumental in extending the present understanding of momentum-space chemical properties. In particular, such an approach has provided a new and complementary picture of the covalent bond in molecular hydrogen in momentum-space. The first experimental estimation of the spherically averaged bond density in momentum-space by binary (e,2e) spectroscopy is also attained.
Correlation between extrinsic electroresistance and magnetoresistance in fine-grained La0.7Ca0.3MnO3
Creators: name: Devi, P. Sujatha
name: Kumar, A.
name: Bhattacharya, Dipten
name: Karmakar, Shilpi
name: Chaudhuri, B. K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report our observation of a correlation between the extrinsic electroresistance (EER) and magnetoresistance (EMR) via grain size in fine-grained La0.7Ca0.3MnO3. The nature of dependence of EER and EMR on grain size (~0.2-1.0 micron) indicates that for finer grains with low-resistive boundaries both of them follow similar trend whereas they differ for coarser grains with high-resistive boundaries. This could be due to a crossover in the mechanism of charge transport across the grain boundaries - from spin-depedent scattering process to spin-polarized tunneling one - as a function of grain size.
description: 19 pages including 4 figures; pdf only
Potential for the slow-roll inflation, mass scale hierarchy and Dark Energy from the Type IIA supergravity
Creators: name: Altshuler, Boris L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The magnetic fluxbrane solution with a strongly warped throat is studied in the Type IIA supergravity theory with co-dimension one local source which surves as $Z_{2}$-symmetric UV boundary of the throat. Overall volume of extra space is stabilized since introduction of the local source breaks the no-scale structure of the theory and evades the no-go theorem. Radion field is defined as the position of UV boundary "moved" from its stable value fixed by the anisotropic Israel junction conditions. Analytical expression for the radion effective potential is received. Potential decreases exponentially (exponent is equal to 0,21 in Planck units) in the slow-roll region and apparently meets other demands of the early inflation. Reissner-Nordstrom type deformation of the elementary fluxbrane solution permits to construct the IR end of the throat and results in tiny positive non-zero value of the radion potential in its extremal point seen today as Dark Energy $ρ_{D.E.}$. Expressions for the mass scale hierarchy and for the "acceleration hierarchy" received in the paper give the physically interesting relation between two hierarchies: $ρ_{D.E.} \sim G_{N}^{2}m^{8}$.
description: 32 pages, Latex
Divide and conquer: resonance induced by competitive interactions
Creators: name: Martins, T. Vaz
name: Toral, Raul
name: Santos, M. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study an Ising model in a network with disorder induced by the presence of both attractive and repulsive links. This system is subjected to a subthreshold signal, and the goal is to see how the response is enhanced for a given fraction of repulsive links. This can model a network of spin-like neurons with excitatory and inhibitory couplings. By means of numerical simulations and analytical calculations we find that there is an optimal probability, such that the coherent response is maximal.
[OIII] 5007 Emission from the Black-Hole X-ray Binary in a NGC 4472 Globular Cluster
Creators: name: Zepf, Stephen E.
name: Maccarone, Thomas J.
name: Bergond, Gilles
name: Kundu, Arunav
name: Rhode, Katherine L.
name: Salzer, John J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the discovery of [OIII] 5007 emission associated with the black hole X-ray binary recently identified in a globular cluster in the Virgo elliptical galaxy NGC 4472. This object is the first confirmed black-hole X-ray binary in a globular cluster. The identification of [OIII] 5007 emission from the black-hole hosting globular cluster is based on two independent fiber spectra obtained at the VLT with FLAMES, which cover a wavelength range of 5000-5800 Angstrom at a spectral resolution of about 6000. In each of these spectra we find an emission line at 5031.2 Angstrom with an uncertainty of several tenths of an Angstrom. These are consistent with [OIII] 5007 emission at the 1475 +/- 7 km/s radial velocity of the globular cluster previously determined from an analysis of its absorption lines. This agreement within the small uncertainties argues strongly in favor of the interpretation of the line as [OIII] 5007 emission from the black-hole hosting globular cluster. We also find that the emission line most likely has a velocity width of several hundred km/s. Such a velocity width rules out a planetary nebula explanation for the [OIII] 5007 emission and implicates the black hole as the source of the power driving the nebular emission.
description: ApJ Letters, in press
20190605 DMP Workshop EBI EMBL for PIs
Creators: name: Teperek, Marta
Publisher: name: Zenodo
Year: 2019
Subjects: data management
DMP
TU Delft
Open Science
budgeting
data stewardship

description: Workshop on data management planning delivered by Marta Teperek at EBI-EMBL on 5 June 2019.
Schoengastia gerrhosauri Lawrence 1949
Creators: name: Stekolnikov, Alexandr A.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Trombiculidae
Schoengastia
Schoengastia gerrhosauri

description: Schoengastia gerrhosauri Lawrence, 1949
Schoengastia gerrhosauri Lawrence, 1949: 426, fig. 13.
Schoengastia gerrhosauri – Wharton & Fuller 1952: 88. — Vercammen-Grandjean 1958b: 659, pl. 9.
Schoengastia (Schoengastia) gerrhosauri – Zumpt 1961: 155. — Vercammen-Grandjean 1965c: 81.
Syntypes
NMSA 4833.
Material revised
One paratype from BMNH (1957.8.12.36).
Distribution
South Africa (Kranzkop, Mullers Pass, Pietermaritzburg, Weenen).
Hosts
Gerrhosaurus flavigularis, Pseudocordylus subviridis, Trachylepis striata.
description: Published as part of Stekolnikov, Alexandr A., 2018, Taxonomy and distribution of African chiggers (Acariformes, Trombiculidae), pp. 1-233 in European Journal of Taxonomy 395 on page 78, DOI: 10.5852/ejt.2018.395, http://zenodo.org/record/3829724
Metal complexes of ferrocenylphosphines : catalytic properties of some rhodium complexes
Creators: name: Kim, Tae-Jeong
Publisher: name: University of British Columbia
Year: 2010

description: A series of achiral and chiral ferrocenylphosphines have been prepared with special emphasis on those containing bulky tert-butyl groups on phosphorus (I and V were previously known): [See Thesis for Diagrams] They form a number of transition metal complexes such as [Rh(L-L)-(NBD)]ClO₄ (L-L = I-VII; NBD = norbornadiene), M(L-L)X₂ (M = Pd, Ni; L- L = I - IV; X = CI, Br), M(L-L)(CO) ₄ (M = Cr, Mo; L-L = I), and Fe[sub x](L-L)(CO) [sub y](x = 1 , y = 3, x = 2, y = 8, L-L =1). All these ligands and their metal complexes have been fully characterized by analytical and spectroscopic techniques. In a number of cases these results are confirmed by X-ray analyses. The configuration of VII proved to be, for example, (S,S) with regard to central and planar chirality rather than the expected (S,R) found for V and VI. The achiral Rh(I) complexes [Rh(L-L)(NBD)]ClO₄ (L-L = I-IV) are efficient catalyst precursors for the hydrogenation of a range of olefins (1 atm H₂, 30°C). The presence of bulky tert-butyl groups enhances reaction rates except when bulky olefins are the substrates. The chiral trisphosphine Rh(I) complex [Rh(L-L)(NBD)] ClO₄ (L-L = VII) is a very efficient catalyst precursor for the asymmetric hydrogenation of acylamino-cinnamic, acylaminoacrylic, and (E)-α-methylcinnamic acids, giving 91, 95, and 61% e.e., respectively. The chiral Rh(I) complex, where L-L = VI, is a relatively poor catalyst for asymmetric hydrogenation as compared with the other two complexes (L-L = V , VII). Here again the presence of tert-butyl groups increases the reaction rates, and the rates become greater as the number of tert-butyl groups increases. These results and other comparative hydrogenation studies are discussed and rationalized in terms of the steric (including ligand conformation) and electronic effects of the substi-tuents on the phosphorus atom(s). The reaction of H₂ with the hydrogenation catalyst precursor [Rh(L-L)-(NBD)] ClO₄ (L-L = II) in MeOH results in crystals which have the structure [(L-L)(H)Rh(μ-H)3Rh(H)(L-L)] ClO₄. When L-L = IV, the same reaction results in a similar rhodium hydride although the positions of the hydrogen atoms are not well established. A number of other hydrides, some fluxional, are also obtained in various solvents from the catalyst precursors [Rh(L-L)(NBD)]- ClO₄ (L-L = I-VII). Where possible these have been characterized on the basis of their NMR spectra. The implication of these results with respect to the mechanisms of catalytic hydrogenation is discussed.
Electrical probing of the spin conductance of mesoscopic cavities
Creators: name: Adagideli, I.
name: Bardarson, J. H.
name: Jacquod, Ph.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate spin-dependent transport in three--terminal mesoscopic cavities with spin--orbit coupling. Focusing on the inverse spin Hall effect, we show how injecting a pure spin current or a polarized current from one terminal generates additional charge current and/or voltage across the two output terminals. This allows to extract the spin conductance of the cavity from two purely electrical measurements on the output. We use random matrix theory to show that the spin conductance of chaotic ballistic cavities fluctuates universally about zero mesoscopic average and describe experimental implementations of mesoscopic spin to charge current converters.
description: 5 Pages, 1 figure, RevTex
Efficient vibrational state coupling in an optical tilted-washboard potential via multiple spatial translations and application to pulse echo
Creators: name: Maneshi, Samansa
name: Kanem, Jalani F.
name: Zhuang, Chao
name: Partlow, Matt
name: Steinberg, Aephraim M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We measure the application of simple and compound pulses consisting of time-dependent spatial translations to coupling vibrational states of ultracold 85Rb atoms in a far-detuned 1D optical lattice. The lattice wells are so shallow as to support only two bound states, and we prepare the atoms in the ground state. The lattice is oriented vertically, leading to a tilted-washboard potential analogous to those encountered in condensed-matter systems. Experimentally, we find that a square pulse consisting of lattice displacements and a delay is more efficient than single-step and Gaussian pulses. This is described as an example of coherent control. It is striking that contrary to the intuition that soft pulses minimize loss, the Gaussian pulse is outperformed by the square pulse. Numerical calculations are in strong agreement with our experimental results and show the superiority of the square pulse to the single-step pulse for all lattice depths and to the Gaussian pulse for lattice depths greater than 7 lattice recoil energies. We also compare the effectiveness of these pulses for reviving oscillations of atoms in vibrational superposition states using the pulse-echo technique. We find that the square and Gaussian pulses result in higher echo amplitudes than the single-step pulse. These improved echo pulses allow us to probe coherence at longer times than in the past, measuring a plateau which has yet to be explained. In addition, we show numerically that the vibrational state coupling due to such lattice manipulations is more efficient in shallow lattices than in deep lattices.
description: 13 pages, 18 figures
Schoengastia mabuyana Lawrence 1949
Creators: name: Stekolnikov, Alexandr A.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Trombiculidae
Schoengastia
Schoengastia mabuyana

description: Schoengastia mabuyana Lawrence, 1949
Schoengastia mabuyana Lawrence, 1949: 423, fig. 11.
Schoengastia mabuyana – Wharton & Fuller 1952: 88. — Vercammen-Grandjean 1958b: 658, pl. 9.
Schoengastia (Schoengastia) mabuyana – Zumpt 1961: 157. — Vercammen-Grandjean 1965c: 82.
Syntypes
SAMC 8713.
Distribution
Zimbabwe (Chishawasha mission, Bulawayo), South Africa (Ubombo).
Hosts
Trachylepis margaritifera, T. striata, T. varia.
description: Published as part of Stekolnikov, Alexandr A., 2018, Taxonomy and distribution of African chiggers (Acariformes, Trombiculidae), pp. 1-233 in European Journal of Taxonomy 395 on page 82, DOI: 10.5852/ejt.2018.395, http://zenodo.org/record/3829724
Proposta didática - Versão Aluno: O RECONHECIMENTO DE INFORMAÇÕES PRINCIPAIS E SECUNDÁRIAS POR ALUNOS DO ENSINO FUNDAMENTAL: ANÁLISE E PROPOSTA PEDAGÓGICA METACOGNITIVISTA
Creators: name: De Medeiros Carretiero, Ana Paula Ferreira
Publisher: name: Zenodo
Year: 2022
Subjects: Estratégias Metacognitivas, Informações principais e secundárias, Estratégias de leitura

description: Proposta didática - Versão Aluno: O RECONHECIMENTO DE INFORMAÇÕES PRINCIPAIS E SECUNDÁRIAS POR ALUNOS DO ENSINO FUNDAMENTAL: ANÁLISE E PROPOSTA PEDAGÓGICA METACOGNITIVISTA Versão professor: https://zenodo.org/record/6360909/files/Proposta%20did%C3%A1tica%20VERS%C3%83O%20PROFESSOR.pdf?download=1
Studies in the ro-vibronic spectroscopy of gases
Creators: name: McRae, Glenn Aldon
Publisher: name: University of British Columbia
Year: 2010

description: Microwave spectra have been investigated for GeH₄, AsD₃, AsD₂H, AsH₂D, PD₂H and PH₂D (and PD₃). Forbidden distortion spectra in the frequency range 8-26 GHz have been measured and analyzed for GeH₄, and AsD₃. Allowed rotational transitions, in the centimeter and millimeter wave regions, of AsD₂H, AsH₂D, PD₂H and PH₂D have been measured and analyzed. Harmonic force fields have been produced for ammonia, phosphine and arsine from various empirical data including the quartic centrifugal distortion constants obtained in this work as well as Coriolis coupling constants and vibrational frequencies obtained from other studies. A discussion of the standard "diatomic" anharmonic isty correction techniques to "harmonize" vibrational frequencies shows these techniques to be unsatisfactory and so corrections of this sort were not made. From the harmonic force field analysis average "r[sub z]" structures have been obtained for various isotopic derivatives of ammonia, phosphine and arsine. Using a linear extrapolation, equilibrium structures have been estimated. A comparison of many of the symmetric top reduction schemes is also presented in order to make clear a distinction between similarly labeled parameters of different reductions; of special importance is the parameter τ [sub xxxz]. To "fit" spectra of light easily distorted molecules it has been suggested by previous authors that rational fraction Pade approximants might be useful. A motivation for why these approximants could prove beneficial is given along with a review of earlier attempts to incorporate them into general fitting schemes. In this review we find that indeterminacy relations exist between various parameters in these earlier schemes and so a new method, a method of successive separation, is proposed that circumvents these indeterminacies. This method should prove useful for any general study where power series in N variables are slow to converge.
Microtrombicula zumpti Vercammen-Grandjean 1965
Creators: name: Stekolnikov, Alexandr A.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Trombiculidae
Microtrombicula
Microtrombicula zumpti

description: Microtrombicula zumpti Vercammen-Grandjean, 1965
Microtrombicula (Microtrombicula) zumpti Vercammen-Grandjean 1965a: 112, pl. ZZ.
Microtrombicula zumpti – Vercammen-Grandjean 1965c: 45.
Holotype
RMCA (not found).
Distribution
South Africa (Dargle).
Host
Procavia capensis.
description: Published as part of Stekolnikov, Alexandr A., 2018, Taxonomy and distribution of African chiggers (Acariformes, Trombiculidae), pp. 1-233 in European Journal of Taxonomy 395 on pages 176-177, DOI: 10.5852/ejt.2018.395, http://zenodo.org/record/3829724
Linearized force constants method for lattice dynamics in mixed semiconductors
Creators: name: Nassour, Ayoub
name: Hugel, Joseph
name: Postnikov, A. V.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: A simple and accurate method of calculating phonon spectra in mixed semiconductors alloys, on the basis of preliminarily (from first principles) relaxed atomic structure, is proposed and tested for (Zn,Be)Se and (Ga,In)As solid solutions. The method uses an observation that the interatomic force constants, calculated ab initio for a number of microscopic configurations in the systems cited, show a clear linear variation of the main (diagonal) values of the interatomic force constants with the corresponding bond length. We formulate simple rules about how to recover the individual 3x3 subblocks of the force constants matrix in their local (bonds-related) coordinate systems and how to transform them into a global (crystal cell-related) coordinate system. Test calculations done for 64-atom supercells representing different concentrations of (Zn,Be)Se and (Ga,In)As show that the phonon frequencies and compositions of eigenvectors are faithfully reproduced in a linearized force constants calculation, as compared to true ab initio calculations.
description: to appear in the proceedings of the Phonons2007 conference (Paris, July 2007)
Supporting Information for "Solar-cycle, seasonal, and asymmetric dependencies of thermospheric mass density disturbances due to magnetospheric forcing" doi:10.5194/angeo-37-989-2019
Creators: name: Calabia, Andres
name: Jin, Shuanggen
Publisher: name: Zenodo
Year: 2019

description: The following files are compressed in the ds02.zip file: (csv format): Modified Julian Date, Latitude, longitude, and density estimates (Kg/m3) along orbit 3 min interval, normalized to 475 Km altitude. (folder): MATLAB scripts corresponding to thermospheric mass density model (example in RUN.m file).
description: Supporting Information for "Solar-cycle, seasonal, and asymmetric dependencies of thermospheric mass density disturbances due to magnetospheric forcing" doi:10.5194/angeo-37-989-2019
Tau-function of discrete isomonodromy transformations and probability
Creators: name: Arinkin, D.
name: Borodin, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Algebraic Geometry (math.AG)
subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We introduce the tau-function of a rational d-connection and its isomonodromy transformations. We show that in a continuous limit our tau-function agrees with the Jimbo-Miwa-Ueno tau-function, compute the tau-function for the isomonodromy transformations leading to difference Painleve V and difference Painleve VI equations, and prove that the gap probability for a wide class of discrete random matrix type models can be viewed as the tau-function for an associated d-connection.
description: 26 pages
Metaverse for Social Good: A University Campus Prototype
Creators: name: Duan, Haihan
name: Li, Jiaye
name: Fan, Sizheng
name: Lin, Zhonghao
name: Wu, Xiao
name: Cai, Wei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Multimedia (cs.MM)
subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: In recent years, the metaverse has attracted enormous attention from around the world with the development of related technologies. The expected metaverse should be a realistic society with more direct and physical interactions, while the concepts of race, gender, and even physical disability would be weakened, which would be highly beneficial for society. However, the development of metaverse is still in its infancy, with great potential for improvement. Regarding metaverse's huge potential, industry has already come forward with advance preparation, accompanied by feverish investment, but there are few discussions about metaverse in academia to scientifically guide its development. In this paper, we highlight the representative applications for social good. Then we propose a three-layer metaverse architecture from a macro perspective, containing infrastructure, interaction, and ecosystem. Moreover, we journey toward both a historical and novel metaverse with a detailed timeline and table of specific attributes. Lastly, we illustrate our implemented blockchain-driven metaverse prototype of a university campus and discuss the prototype design and insights.
Remarks on KdV-type Flows on Star-Shaped Curves
Creators: name: Calini, Annalisa
name: Ivey, Thomas
name: Beffa, Gloria Mari
Publisher: name: arXiv
Year: 2008
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We study the relation between the centro-affine geometry of star-shaped planar curves and the projective geometry of parametrized maps into $\RP^1$. We show that projectivization induces a map between differential invariants and a bi-Poisson map between Hamiltonian structures. We also show that a Hamiltonian evolution equation for closed star-shaped planar curves, discovered by Pinkall, has the Schwarzian KdV equation as its projectivization. (For both flows, the curvature evolves by the KdV equation.) Using algebro-geometric methods and the relation of group-based moving frames to AKNS-type representations, we construct examples of closed solutions of Pinkall's flow associated with periodic finite-gap KdV potentials.
description: 21 pages, 5 figures; revised for publication
title: Entanglement of Painting, Nature, and Being
Creators: name: Matisz, April
Publisher: name: Emily Carr University of Art and Design
Year: 2023
Subjects: subject: Painting
subject: Ceramics
subject: Nature
subject: Nature in art
subject: Landscapes

description: Artmaking is the process through which I come to understand things about the world and what it means to be in/with the world.
In this paper, I describe how my painting practice operates. This process yields ways of thinking through the world that cannot be replicated through other means. I explain how I think through the information, ideas and theories gleaned through scientific disciplines as I engage with material matter. I strive to explore how scientific and embodied knowledges can function together, in my case, to provide a deeper connection and sense of belonging to the land on which I live and the Earth we all inhabit.
Additionally, this document demonstrates how my paintings and clay feet address ideas of Nature. I briefly investigate the history of nature that developed within Western Europe and consider notions of Nature that have emerged more recently. I discuss how my works unpack the complexity of our relationship with Nature.
Finally, I link my work with broader philosophical ideas about the human condition. I focus on the distinction between human animals and non-human animals and the environmental and ethical implications resulting from this distinction. I then examine visual art’s role as I navigate new understandings of and relationships with nature. I conclude by exploring how painting can guide us toward a more equitable relationship with nature and fulfill a human desire for novel, vibrant and pleasurable experiences.
Leptotrombidium rhodesianum
Creators: name: Stekolnikov, Alexandr A.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Trombiculidae
Leptotrombidium
Leptotrombidium rhodesianum

description: Leptotrombidium rhodesianum (Lawrence, 1949)
Trombicula rhodesiana Lawrence, 1949: 440, fig. 26.
Trombicula rhodesiana – Audy & Vercammen-Grandjean 1961a: 132. — Zumpt 1961: 139.
Trombicula (Trombicula) rhodesiana – Wharton & Fuller 1952: 69.
Leptotrombidium (Leptotrombidium) rhodesianum – Vercammen-Grandjean 1965c: 54.
Holotype
NMSA 4871.
Distribution
Zimbabwe (Bulawayo).
Hosts
Trachylepis margaritifera (original data), T. quinquetaeniata (Zumpt 1961).
Remarks
This species was not included in later revisions of the genus Leptotrombidium (Vercammen-Grandjean & Langston 1976; Stekolnikov 2013). Its original description is very incomplete; the generic placement must be confirmed after examination of type series.
description: Published as part of Stekolnikov, Alexandr A., 2018, Taxonomy and distribution of African chiggers (Acariformes, Trombiculidae), pp. 1-233 in European Journal of Taxonomy 395 on page 144, DOI: 10.5852/ejt.2018.395, http://zenodo.org/record/3829724
Visual Narratives in Videogames: How Videogames Tell Stories Through Graphical Elements
Creators: name: Soriani, Alessandro
name: Caselli, Stefano
Publisher: name: img journal
Year: 2021

description: Videogame is a unique and, at the same time, widely diversified medium. The typical elements of oral, written, musical, visual –but also interactive, spatial, environmental– narration are found merged together in different ways creating 'elsewheres' capable of telling stories and generating experiences in ways that other media are hardly able to replicate. Visual and graphical elements can provide great narrative potentials in videogames as they take part in the wider process of meaning and narrative conveyment, both shaping countless possible scenarios and helping players to make sense of them.This contribution addresses the narrative potential of visual elements in videogames by merging the perspectives of game studies and semiotics. The first part will be devoted to the framing of videogames’ expressive power within the field of game studies and will deal with specific fieldrelated concepts such as procedural rhetoric and evocative narrative elements. The second will delve deep into the understanding of videogames as texts, following the work of Agata Meneghelli and Espen J. Aarseth on the matter. The last part will deal with how videogames can use their visual elements for narrative purposes, providing a framework of five different visual narratives based upon Henri Jenkins’ videogame narrative theory.
description: img journal, No. 3 (2020): Remediating distances
Digital Technologies, Motion Recognition and Analysis of Basic Movements for Improving the Teaching of Ballet Dance: the Digital Double of the PASSAY Project
Creators: name: Ferrari, Federico
name: Medici, Marco
name: Zambonini, Andrea
Publisher: name: img journal
Year: 2021

description: The paper will describe the PASSAY project, an educational system that helps ballet teachers conveying basic movements to young students thanks to the use of optical tracking devices and the development of a digital double to check and validate movements. The project brings a significant innovation in a discipline that could sometimes look anachronistic in relation to today’s social context in which the technology has a fundamental role. Moreover, its use can help in overcoming distances, like the pandemic is imposing, and engaging more people and young students in particular.
description: img journal, No. 3 (2020): Remediating distances
Making Things Talk: Hoard, Collection, Archive
Creators: name: Camillini, Gianluca
name: Gigliotti, Roberto
name: Sestini, Clara
Publisher: name: img journal
Year: 2021

description: We store things in our everyday spaces –objects, artefacts or images– that over time betray their original function to become stories. As they accumulate, they lie in wait for someone to find the time to interrogate them and bring them back to the present time. Whether they be large or small, digital or physical, public or private, hoards prevent access to the stories of the things they contain. To give a group of things a structure than can last over time, guaranteeing controlled development and greater access to the stories they contain, hoarding is not enough: the hoarded objects can only begin to talk and tell their story if they are organized into a defined order, if they are curated, either through the work of an archivist or the criteria of a collector. This paper considers the hoarding of objects in every possible sense, reflecting on their narrative power and on the capacity of artefacts to constitute a recorded historical memory, be it personal or collective.
description: img journal, No. 3 (2020): Remediating distances
Reshaping Teacher-Student Interaction in the Virtual Classroom: a Case Study
Creators: name: Veronesi, Daniela
name: Chizzoni, Ilaria
name: Raineri, Katia
name: Schmalz, Veronica
name: Taferner, Monika
Publisher: name: img journal
Year: 2021

description: This paper presents an exploratory examination of video-mediated classroom interaction in School and University settings, a modality of teaching and learning which has recently experienced a rapid growth as a consequence of the COVID-19 emergency. Based on a corpus of audio and video recorded virtual classes, we analyze how instructors and students cope with the challenges of not being physically co-present and lacking direct visual contact in the virtual enviroment, and discuss how fundamental mechanisms of face-to-face classroom interaction –participants’ mutual orientation in the opening phase, speakers’ identification and recognition, as well as instructors’ actions like comprehension checks, solicitations for ques-tions/comments, questions and evaluations– are partially modified in the virtual environment, making it more complex, for instructors, to enhance students’ active participation. Final considerations are devoted to the possible implications of these preliminary findings.
description: img journal, No. 3 (2020): Remediating distances
Code, Desire and Conjuring: On the Magic Fabric of Contemporary Computing Technologies
Creators: name: Schmid, Heiko
Publisher: name: img journal
Year: 2021

description: In this paper I endeavor to bridge the gap between the concepts of magic and of digital technology. I do this by focusing on the intersection between the magic spell and software or code. By scrutinizing the interplay between the (magic) formula and the way it is performed in order to achieve a specific impact, it becomes possible to describe a close proximity of the magic formula with contemporary software. Today, digital machines and their relevant algorithms are almost exclusively seen in the light of a narrow rational and technical concept. Historically, the ‘use’ of technology is much more diverse, and I argue out of this perspective that it is time to historicize the working structure of digital machines in a way, that they can be embedded within the long history of magic conceptions.
description: img journal, No. 3 (2020): Remediating distances
Crystallographic and magnetic structures of the VI$_3$ and LiVI$_3$ van der Waals compounds
Creators: name: Marchandier, Thomas
name: Dubouis, Nicolas
name: Fauth, François
name: Avdeev, Maxim
name: Grimaud, Alexis
name: Tarascon, Jean-Marie
name: Rousse, Gwenaëlle
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Two-dimensional (2D) layered magnetic materials are generating a great amount of interest for the next generation of electronic devices thanks to their remarkable properties associated to spin dynamics. The recently discovered layered VI$_3$ ferromagnetic phase belongs to this family, although a full understanding of its properties is limited by an ill-defined crystallographic structure. This is not any longer true. Here, we investigate the VI$_3$ crystal structure upon cooling using both synchrotron X-ray and neutron powder diffraction and provide structural models for the two structural transitions occurring at 76 K and 32 K. Moreover, we confirm by magnetic measurements that VI$_3$ becomes ferromagnetic at 50 K and discuss the difficulty of solving its full magnetic structure by neutrons. We equally determined the magnetic properties of our recently reported LiVI$_3$ phase, which is alike the well-known CrI$_3$ ferromagnetic phase in terms of electronic and crystallographic structures and found to our surprise an antiferromagnetic behavior with a Néel temperature of 12 K. Such a finding provides extra clues for a better understanding of magnetism in these low dimension compounds. Finally, the easiness of preparing novel Li-based 2D magnetic materials by chemical/electrochemical means opens wide the opportunity to design materials with exotic properties.