cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Landouria conoidea Nurinsiyah & Neiber & Hausdorf 2019, comb. nov.
Creators: name: Nurinsiyah, Ayu Savitri
name: Neiber, Marco T.
name: Hausdorf, Bernhard
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Stylommatophora
Camaenidae
Landouria
Landouria conoidea

description: Landouria conoidea (Leschke, 1914) comb. nov.
Figs 4, 6, 53; Tables 3–4
Plectotropis conoidea Leschke, 1914: 212, figs 8–9 (“Buitenzorg”).
Landouria rotatoria – van Benthem Jutting 1950: 461 (in part). (not Pfeiffer, 1842)
Diagnosis
Landouria conoidea is characterized by a small, conical, sharply keeled shell with tubercles all over the shell surface.
Material examined
Syntypes
INDONESIA • 8 spec.; West Java, Bogor; 6°36′ S, 106°48′ E; ZMH 98144.
Other material
INDONESIA • 10 spec.; West Java, Bogor; 6°36′ S, 106°48′ E; ZMH 98145.
Description
SHELL (Figs 4, 6; Tables 3–4). Conical, with 4.75–5 slightly convex whorls; protoconch almost smooth; teleoconch with fine, irregular wrinkles; apical side without distinct incised spiral lines, umbilical side with indistinct spiral lines; with tubercles all over shell surface that carry scaly processes or hairs mainly at periphery; tuberculate around umbilicus; brownish-corneous; body whorl sharply keeled at beginning; aperture almost circular; upper insertion of peristome slightly descending; peristome expanded, reflexed and slightly thickened; umbilicus hardly eccentric, wide, comprising 30–43% of shell diameter, hardly obscured by columellar edge.
GENITALIA. Unknown.
Remarks
Landouria conoidea differs from L. winteriana, which occurs in the same region in West Java, in the smaller shell diameter (7.6–8.7 mm vs 9.7–12.6 mm in L. winteriana), the higher shell form (D/H 1.48–1.54 vs 1.55–2.07 in L. winteriana), the more pronounced keel and the presence of tubercles all over the shell surface (Fig. 6).
With regard to the conical shell form, L. conoidea resembles L. naggsi sp. nov. (Fig. 25), from which it differs in the less elevated (D/H 1.48–1.54 vs 1.21–1.37 in L. naggsi sp. nov.), smaller shell (D 7.6– 8.7 mm vs 11.6–14.0 mm in L. naggsi sp. nov.) with fewer whorls (4.75–5 vs 6.25–7 in L. naggsi sp. nov.), the more pronounced keel and the shell sculpture consisting of tubercles vs longish scales in L. naggsi sp. nov.
Distribution
Landouria conoidea is so far known only from Bogor in West Java (Fig. 53).
description: Published as part of Nurinsiyah, Ayu Savitri, Neiber, Marco T. & Hausdorf, Bernhard, 2019, Revision of the land snail genus Landouria Godwin-Austen, 1918 (Gastropoda, Camaenidae) from Java, pp. 1-73 in European Journal of Taxonomy 526 on pages 17-19, DOI: 10.5852/ejt.2019.526, http://zenodo.org/record/3152217
title: SOLIFLY Public Workshop – Integration concept of structural batteries in carbon fiber solid laminate composite aerostructures
title: Presentation at the SOLIFLY public workshop on aeronautic structural battery development at UNINA in Naples (IT) on 21 November 2023
titleType: Subtitle
Creators: name: Laurin, Frédéric
name: Fougerouse, Claire
name: Saffar, Florence
name: Beauchene, Pierre
Publisher: name: Zenodo
Year: 2023

description: This presentation deals with integration of battery cells in laminated composite structures. It details the development the structural integration numerical methodology for the cell concepts, the manufacturing of elementary coupons with embedded structural batteries (cells #1 and 2#), and the determination of the mechanical performances of specimens with multi-instrumented tests.
Contractions, deformations and curvature
Creators: name: Ballesteros, Angel
name: Herranz, Francisco J.
name: Ragnisco, Orlando
name: Santander, Mariano
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 22E60, 17B37

description: The role of curvature in relation with Lie algebra contractions of the pseudo-ortogonal algebras so(p,q) is fully described by considering some associated symmetrical homogeneous spaces of constant curvature within a Cayley-Klein framework. We show that a given Lie algebra contraction can be interpreted geometrically as the zero-curvature limit of some underlying homogeneous space with constant curvature. In particular, we study in detail the contraction process for the three classical Riemannian spaces (spherical, Euclidean, hyperbolic), three non-relativistic (Newtonian) spacetimes and three relativistic ((anti-)de Sitter and Minkowskian) spacetimes. Next, from a different perspective, we make use of quantum deformations of Lie algebras in order to construct a family of spaces of non-constant curvature that can be interpreted as deformations of the above nine spaces. In this framework, the quantum deformation parameter is identified as the parameter that controls the curvature of such "quantum" spaces.
description: 17 pages. Based on the talk given in the Oberwolfach workshop: Deformations and Contractions in Mathematics and Physics (Germany, january 2006) organized by M. de Montigny, A. Fialowski, S. Novikov and M. Schlichenmaier
Reclamation in the Highland Valley : the classification of disturbed areas for evaluation and planning
Creators: name: Lloyd, Cecilia Jane
Publisher: name: University of British Columbia
Year: 2010

description: The Highland Valley has the greatest concentration of open-pit hardrock mines in Western Canada. It is anticipated that the reclamation of 8,000 ha of disturbed land will eventually be necessary. This study was undertaken to evaluate existing reclamation methods and objectives and to predict the effects of reclamation upon land-use in the area. Physical characteristics of disturbed materials and the effect of aspect on moisture conditions in disturbed materials were investigated. Natural vegetation, natural revegetation and land-use were surveyed. Reclamation trials were assessed. Disturbed materials differed significantly in texture. Aspect did not affect moisture conditions in disturbed materials but sites exposed to wind were significantly drier than sheltered sites. The factors texture, exposure, topography and elevation were used to classify disturbed areas into 13 reclamation site-types. Each reclamation site-type had characteristic reclamation requirements. Existing and anticipated reclamation site-types were delineated on maps. Information acquired from surveys and from assessment of reclamation trials and results of reclamation research in other regions were used to propose suitable reclamation techniques and land-use objectives for each reclamation site-type. A plan of the predicted land-use of the Highland Valley resulting from adoption of these techniques and objectives was compiled. Methods of reclaiming two of the reclamation site-types have been developed in the Highland Valley but reclamation trials have not been located in the disturbed areas which present more difficult conditions for plant establishment and growth. Future research should be directed towards solving the problems caused by steep slopes, exposure and the peculiar characteristics of tailings. The potential impact of reclamation on land-use is large. The amount of rangeland in the Highland Valley could be increased by 4400 ha. An over-abundance of wildlife may result from temporary increases in the amount of habitat available.
Exchange Symmetry and Multipartite Entanglement
Creators: name: Ichikawa, Tsubasa
name: Sasaki, Toshihiko
name: Tsutsui, Izumi
name: Yonezawa, Nobuhiro
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Entanglement of multipartite systems is studied based on exchange symmetry under the permutation group S_N. With the observation that symmetric property under the exchange of two constituent states and their separability are intimately linked, we show that anti-symmetric (fermionic) states are necessarily globally entangled, while symmetric (bosonic) states are either globally entangled or fully separable and possess essentially identical states in all the constituent systems. It is also shown that there cannot exist a fully separable state which is orthogonal to all symmetric states, and that full separability of states does not survive under total symmetrization unless the states are originally symmetric. Besides, anyonic states permitted under the braid group B_N should also be globally entangled. Our results reveal that exchange symmetry is actually sufficient for pure states to become globally entangled or fully separable.
description: 12 pages, appendix added
Downhill versus two-state protein folding in a statistical mechanical model
Creators: name: Bruscolini, P.
name: Pelizzola, A.
name: Zamparo, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Biomolecules (q-bio.BM)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: The authors address the problem of downhill protein folding in the framework of a simple statistical mechanical model, which allows an exact solution for the equilibrium and a semianalytical treatment of the kinetics. Focusing on protein 1BBL, a candidate for downhill folding behavior, and comparing it to the WW domain of protein PIN1, a two-state folder of comparable size, the authors show that there are qualitative differences in both the equilibrium and kinetic properties of the two molecules. However, the barrierless scenario which would be expected if 1BBL were a true downhill folder is observed only at low enough temperature.
description: 20 pages, 13 figures
A Mathematica script for harmonic oscillator nuclear matrix elements arising in semileptonic electroweak interactions
Creators: name: Haxton, Wick
name: Lunardini, Cecilia
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Semi-leptonic electroweak interactions in nuclei - such as βdecay, μcapture, charged- and neutral-current neutrino reactions, and electron scattering - are described by a set of multipole operators carrying definite parity and angular momentum, obtained by projection from the underlying nuclear charge and three-current operators. If these nuclear operators are approximated by their one-body forms and expanded in the nucleon velocity through order |\vec{p}|/M, where \vec{p} and M are the nucleon momentum and mass, a set of seven multipole operators is obtained. Nuclear structure calculations are often performed in a basis of Slater determinants formed from harmonic oscillator orbitals, a choice that allows translational invariance to be preserved. Harmonic-oscillator single-particle matrix elements of the multipole operators can be evaluated analytically and expressed in terms of finite polynomials in q^2, where q is the magnitude of the three-momentum transfer. While results for such matrix elements are available in tabular form, with certain restriction on quantum numbers, the task of determining the analytic form of a response function can still be quite tedious, requiring the folding of the tabulated matrix elements with the nuclear density matrix, and subsequent algebra to evaluate products of operators. Here we provide a Mathematica script for generating these matrix elements, which will allow users to carry out all such calculations by symbolic manipulation. This will eliminate the errors that may accompany hand calculations and speed the calculation of electroweak nuclear cross sections and rates. We illustrate the use of the new script by calculating the cross sections for charged- and neutral-current neutrino scattering in ^{12}C.
description: 15 pages, 2 tables, Mathematica notebook included in the form of figures. Mathematica package and documentation available at http://www.int.washington.edu/users/lunardi/7o.htm. Replaced version has improved graphics; text unchanged
Radiative MHD simulation of sunspot structure
Creators: name: Rempel, M.
name: Schuessler, M.
name: Knoelker, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Results of a 3D MHD simulation of a sunspot with a photospheric size of about 20 Mm are presented. The simulation has been carried out with the MURaM code, which includes a realistic equation of state with partial ionization and radiative transfer along many ray directions. The largely relaxed state of the sunspot shows a division in a central dark umbral region with bright dots and a penumbra showing bright filaments of about 2 to 3 Mm length with central dark lanes. By a process similar to the formation of umbral dots, the penumbral filaments result from magneto-convection in the form of upflow plumes, which become elongated by the presence of an inclined magnetic field: the upflow is deflected in the outward direction while the magnetic field is weakened and becomes almost horizontal in the upper part of the plume near the level of optical depth unity. A dark lane forms owing to the piling up of matter near the cusp-shaped top of the rising plume that leads to an upward bulging of the surfaces of constant optical depth. The simulated penumbral structure corresponds well to the observationally inferred interlocking-comb structure of the magnetic field with Evershed outflows along dark-laned filaments with nearly horizontal magnetic field and overturning perpendicular (`twisting') motion, which are embedded in a background of stronger and less inclined field. Photospheric spectral lines are formed at the very top and somewhat above the upflow plumes, so that they do not fully sense the strong flow as well as the large field inclination and significant field strength reduction in the upper part of the plume structures.
description: 10 pages, 11 figures. Added references, corrected typos, minor revisions. To be published in ApJ
Self-dual Maxwell field in 3D gravity with torsion
Creators: name: Blagojević, M.
name: Cvetković, B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the system of self-dual Maxwell field coupled to 3D gravity with torsion, with Maxwell field modified by a topological mass term. General structure of the field equations reveals a new, dynamical role of the classical central charges, and gives a simple correspondence between self-dual solutions with torsion and their Riemannian counterparts. We construct two exact self-dual solutions, corresponding to the sectors with massless and massive Maxwell field, and calculate their conserved charges.
description: LATEX, 15 pages, v2: minor corrections
Update on Ion Studies
Creators: name: Xia, Guoxing
name: Elsen, Eckhard
Publisher: name: arXiv
Year: 2007
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: The effect of ions has received one of the highest priorities in R&D for the damping rings of the International Linear Collider(ILC). It is detrimental to the performance of the electron damping ring. In this note, an update concerning the ion studies for the ILC damping ring is given. We investigate the gap role and irregular fill pattern in the ring.The ion density reduction in different fills is calculated analytically. Simulation results are also presented.
description: There are 6 pages, 9 figures and 1 table in this paper. It is for the proceedings of LCWS07 Workshop
Holographic hessence models
Creators: name: Zhao, Wen
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We discuss the evolution of holographic hessence model, which satisfies the holographic principle and can naturally realizes the equation of state crossing -1. By discussing the evolution of the models in the $w w'$ plane, we find that, if $c\geq1$, $w_{he}\geq-1$ and $\dot{V}<0$ keep for all time, which are quintessence-like. However, if $c-1$ to $w_{he}
description: 10 pages, 5 figures, PLB accepted
Confidence polytopes for quantum process tomography
Creators: name: Kiktenko, E. O.
name: Norkin, D. O.
name: Fedorov, A. K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In the present work, we propose a generalization of the confidence polytopes approach for quantum state tomography (QST) to the case of quantum process tomography (QPT). Our approach allows obtaining a confidence region in the polytope form for a Choi matrix of an unknown quantum channel based on the measurement results of the corresponding QPT experiment. The method uses the improved version of the expression for confidence levels for the case of several positive operator-valued measures (POVMs). We then demonstrate how confidence polytopes can be employed for calculating confidence intervals for affine functions of quantum states (Choi matrices), such as fidelities and observables mean values, which are used both in QST and QPT settings. As we propose, this problem can be efficiently solved using linear programming tools. We also study the performance and scalability of the developed approach on the basis of simulation and experimental data collected using IBM cloud quantum processor.
description: 11 pages, 3 figures; proof-of-principle realization of the method is available at https://doi.org/10.5281/zenodo.5752345
Entropic order parameters in weakly coupled gauge theories
Creators: name: Casini, Horacio
name: Magan, Javier M.
name: Martinez, Pedro J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The entropic order parameters measure in a universal geometric way the statistics of non-local operators responsible for generalized symmetries. In this article, we compute entropic order parameters in weakly coupled gauge theories. To perform this computation, the natural route of evaluating expectation values of physical (smeared) non-local operators is prevented by known difficulties in constructing suitable smeared Wilson loops. We circumvent this problem by studying the smeared non-local class operators in the enlarged non-gauge invariant Hilbert space. This provides a generic approach for smeared operators in gauge theories and explicit formulas at weak coupling. In this approach, the Wilson and 't Hooft loops are labeled by the full weight and co-weight lattices respectively. We study generic Lie groups and discuss couplings with matter fields. Smeared magnetic operators, as opposed to the usual infinitely thin ones, have expectation values that approach one at weak coupling. The corresponding entropic order parameter saturates to its maximum topological value, except for an exponentially small correction, which we compute. On the other hand, smeared 't Hooft loops and their entropic disorder parameter are exponentially small. We verify that both behaviors match the certainty relation for the relative entropies. In particular, we find upper and lower bounds (that differ by a factor of 2) for the exact coefficient of the linear perimeter law for thin loops at weak coupling. This coefficient is unphysical/non-universal for line operators. We end with some comments regarding the RG flows of entropic parameters through perturbative beta functions.
description: 53 pages, 7 figures, minor changes, version accepted for publication in JHEP
Crystal and magnetic structures of the spin-trimer compounds Ca3 Cu3xNix (PO4)4 (x=0,1,2)
Creators: name: Pomjakushin, V. Yu.
name: Furrer, A.
name: Sheptyakov, D. V.
name: Pomjakushina, E. V.
name: Conder, K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Crystal and magnetic structures of a series of novel quantum spin trimer system Ca3Cu3xNix(PO4)4 (x=0,1,2) were studied by neutron powder diffraction at the temperatures 1.5-290 K. The composition with one Ni per trimer (x=1) has a monoclinic structure (space group P 21 /a, no. 14) with the unit cell parameters a = 17.71 A, b = 4.89 A, c = 8.85 A and = 123.84 deg at T=290 K. The (x=2) composition crystallizes in the C 2/c space group (no. 15) with the doubled unit cell along c-axis. Each trimer is formed by two crystallographic positions: one in the middle and the second one at the ends of the trimer. We have found that the middle position is occupied by the Cu2+, whereas the end positions are equally populated with the Cu2+ and Ni2+ for (x=1) while in the (x=2) the trimers were found to be of only one type Ni-Cu-Ni. Below TN = 20 K the (x=2) compound shows an antiferromagnetic ordering with propagation vector star {[1/2,1/2, 0], [-1/2,1/2, 0]} The magnetic structure is very well described with the irreducible representation tau22 using both arms of the star {k} with the magnetic moments 1.89(1) muB and 0.62(2) muB for Ni2+ and Cu2+ ions, respectively. We note that our powder diffraction data cannot be fitted by a model containing only one arm of the propagation vector star. The Cu/Ni-spins form both parallel and antiparallel configurations in the different trimers, implying substantial effect of the inter-trimer interaction on the overall magnetic structure.
description: 14 pages (double spacing), 4 tables, 9 figures, submitted to Phys. Rev. B
Experimental quantum key distribution based on a Bell test
Creators: name: Ling, Alexander
name: Peloso, Matthew P.
name: Marcikic, Ivan
name: Scarani, Valerio
name: Lamas-Linares, Antia
name: Kurtsiefer, Christian
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report on a complete free-space field implementation of a modified Ekert91 protocol for quantum key distribution using entangled photon pairs. For each photon pair we perform a random choice between key generation and a Bell inequality. The amount of violation is used to determine the possible knowledge of an eavesdropper to ensure security of the distributed final key.
description: 5 pages ReVTeX, 3 figures; version v2 with updated references and minor corrections, author spelling fixed
Correlations of Prompt and Afterglow Emission in Swift Long and Short Gamma Ray Bursts
Creators: name: Gehrels, N.
name: Barthelmy, S. D.
name: Burrows, D. N.
name: Cannizzo, J. K.
name: Chincarini, G.
name: Fenimore, E.
name: Kouveliotou, C.
name: O'Brien, P.
name: Palmer, D. M.
name: Racusin, J.
name: Roming, P. W. A.
name: Sakamoto, T.
name: Tueller, J.
name: Wijers, R. A. M. J.
name: Zhang, B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Correlation studies of prompt and afterglow emissions from gamma-ray bursts (GRBs) between different spectral bands has been difficult to do in the past because few bursts had comprehensive and intercomparable afterglow measurements. In this paper we present a large and uniform data set for correlation analysis based on bursts detected by the Swift mission. For the first time, short and long bursts can be analyzed and compared. It is found for both classes that the optical, X-ray and gamma-ray emissions are linearly correlated, but with a large spread about the correlation line; stronger bursts tend to have brighter afterglows, and bursts with brighter X-ray afterglow tend to have brighter optical afterglow. Short bursts are, on average, weaker in both prompt and afterglow emissions. No short bursts are seen with extremely low optical to X-ray ratio as occurs for "dark" long bursts. Although statistics are still poor for short bursts, there is no evidence yet for a subgroup of short bursts with high extinction as there is for long bursts. Long bursts are detected in the dark category at the same fraction as for pre-Swift bursts. Interesting cases are discovered of long bursts that are detected in the optical, and yet have low enough optical to X-ray ratio to be classified as dark. For the prompt emission, short and long bursts have different average tracks on flux vs fluence plots. In Swift, GRB detections tend to be fluence limited for short bursts and flux limited for long events.
description: 13 pages, 3 figures, 4 tables; to appear in the Astrophysical Journal, Dec 20, 2008, v. 689, no. 2
Nanorheology of viscoelastic shells: Applications to viral capsids
Creators: name: Kuriabova, Tatiana
name: Levine, Alex
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Subcellular Processes (q-bio.SC)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We study the microrheology of nanoparticle shells [Dinsmore et al. Science 298, 1006 (2002)] and viral capsids [Ivanovska et al. PNAS 101, 7600 (2004)] by computing the mechanical response function and thermal fluctuation spectrum of a viscoelastic spherical shell that is permeable to the surrounding solvent. We determine analytically the damped dynamics of the shear, bend, and compression modes of the shell coupled to the solvent both inside and outside the sphere in the zero Reynolds number limit. We identify fundamental length and time scales in the system, and compute the thermal correlation function of displacements of antipodal points on the sphere and the mechanical response to pinching forces applied at these points. We describe how such a frequency-dependent antipodal correlation and/or response function, which should be measurable in new AFM-based microrheology experiments, can probe the viscoelasticity of these synthetic and biological shells constructed of nanoparticles.
description: 17 pages
Otoba Karsten 1882
Creators: name: Jaramillo-Vivanco, Tatiana S.
name: Balslev, Henrik
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Magnoliales
Myristicaceae
Otoba

description: Otoba (Candolle) Karsten (1882: 578).
Myristica sect. Otoba Candolle (1855: 30).
Dialyanthera Warburg (1895: 83).
Type:— Myristica otoba Willdenow (Fig. 1)
Homotypic synonyms: Dialyanthera otoba (Willdenow) Warburg; Otoba novogranatensis Moldenke.
Dioecious trees. Branchlets terete or angular, glabrescent to glabrous or pulverulent. Hairs 2-branched, branches uneven, sessile to 1.5 mm long, usually of two sizes, mainly on the lamina; hyaline crystals often present throughout. Leaves with canaliculate, sometimes with winged petiole; lamina pubescent or glabrescent, entire, membranous or papery to leathery; primary vein raised below; secondary veins irregularly or not anastomosing near margin; tertiary veins inconspicuous; intersecondary veins sometimes present. Inflorescences axillary to foliage leaves or on defoliated nodes, with 1–3(–5) partial inflorescences; each partial inflorescence spicate with sessile umbelliform parts, usually pubescent; bracts ovate, deltoid or reniform, usually inconspicuous when present, caducous; bracteoles absent or rarely present. Perianth 3(–4)-lobed. Staminate flowers with a small perianth, somewhat fleshy, inner perianth surface glabrous, smooth or spongy; stamens 3; filaments fused to a column, occasionally distally divergent, or free almost to the base; anthers longitudinally reniform or globose, free and divergent (fused when immature), or fused at the base; connective inconspicuous. Pistillate flowers usually larger, fleshier or stouter than staminate ones; gynoecium grooved at base; ovary glabrous or pubescent, bottle-shaped, ellipsoidal, obconical, or globose and sometimes stalked; stigma sessile to subsessile, bilobed, elongate. Fruit globose to ellipsoidal, 2-valved, rarely carinate; pericarp usually woody, rugose to striate or smooth; aril white to yellow (-orange), usually thin, laciniate for 1/2 or more of its length; seed ellipsoidal or globose, red-brown.
description: Published as part of Jaramillo-Vivanco, Tatiana S. & Balslev, Henrik, 2020, Revision of Otoba (Myristicaceae), pp. 143-175 in Phytotaxa 441 (2) on page 152, DOI: 10.11646/phytotaxa.441.2.3, http://zenodo.org/record/13872038
Landouria naggsi Nurinsiyah & Neiber & Hausdorf 2019, sp. nov.
Creators: name: Nurinsiyah, Ayu Savitri
name: Neiber, Marco T.
name: Hausdorf, Bernhard
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Stylommatophora
Camaenidae
Landouria
Landouria naggsi

description: Landouria naggsi sp. nov.
urn:lsid:zoobank.org:act: 4EF9E468-DDEF-460D-939C-7D9C86254CF4
Figs 25, 52; Tables 3–4
Diagnosis
Landouria naggsi sp. nov. is characterized by an angular, tightly coiled, high conical shell with scales all over the teleoconch.
Etymology
Landouria naggsi sp. nov. is named in honour of the British malacologist Fred Naggs, who brought the authors of this study together.
Material examined
Holotype
INDONESIA • holotype; West Java, Cibitung, near Cikaso Waterfall, teak agroforestry; 7°21′41″ S, 106°37′10″ E; 47 m a.s.l.; 5 Jul. 2015; A.S. Nurinsiyah and T. Setiadi leg.; D = 11.8 mm, H = 9.8 mm; MZB 20424.
Paratypes
INDONESIA – West Java • 1 spec.; Cibitung, near Cikaso Waterfall, riparian (high shrubs); 7°21′40″ S, 106°37′05″ E; 61 m a.s.l.; MZB 20426 • 1 spec.; same data as for preceding; ZMH 148184 • 3 spec.; same data as for holotype; MZB 20425 • 2 spec.; same data as for holotype; ZMH 148183.
Description
SHELL (Fig. 25; Tables 3–4). Conical, with 6.25–7 slightly convex whorls; protoconch almost smooth; teleoconch with irregular wrinkles; incised spiral lines not discernible; scales all over teleoconch; tuberculate around umbilicus; brownish-corneous; body whorl angular; aperture oval; upper insertion of peristome slightly descending; peristome expanded, reflexed and slightly thickened; umbilicus hardly eccentric, wide, comprising 28–33% of shell diameter, hardly obscured by columellar edge.
GENITALIA. Unknown.
Remarks
Landouria naggsi sp. nov. resembles L. parahyangensis sp. nov. (Fig. 48), from which it differs in the smaller (D 11.6–14.0 mm vs 14.7–16.9 mm in L. parahyangensis sp. nov.), higher conical (D/H: 1.21– 1.37 vs 1.69–1.94 in L. parahyangensis sp. nov.), less sharply keeled shell with a narrower umbilicus (U/D 0.28–0.33 vs 0.39–0.45 in L. parahyangensis sp. nov.) and in having scales all over the teleoconch.
With regard to the conical shell form L. naggsi sp. nov. resembles L. conoidea (Leschke, 1914) (Fig. 4). For differences, see remarks under that species.
Distribution
Landouria naggsi sp. nov. is known only from the surroundings of Cikaso Waterfall in Sukabumi Regency (Fig. 52).
description: Published as part of Nurinsiyah, Ayu Savitri, Neiber, Marco T. & Hausdorf, Bernhard, 2019, Revision of the land snail genus Landouria Godwin-Austen, 1918 (Gastropoda, Camaenidae) from Java, pp. 1-73 in European Journal of Taxonomy 526 on pages 27-29, DOI: 10.5852/ejt.2019.526, http://zenodo.org/record/3152217
Spin Texture as Polarization Fingerprint of Halide Perovskites
Creators: name: Gupta, Mayank
name: Nanda, B. R. K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Halide perovskites are perceived to be the promising class of materials for optoelectronics, spinorbitronics and topological electronics due to presence of strong spin-orbit coupling and polarized field. Here, we develop a Hamiltonian using quasi-degenerate perturbation theory to describe polarized field driven band structures and unique topological phases such as Dirac semimetallic rings for the universal class of Halide perovskites including both inorganic and hybrid members. The spin textures obtained through this theoretical model captures minute effects of polarization and hence can be used as a modern tool to determine the polarized field directions which have significant influence on spinorbitronics. The analysis brings out the concepts of hybrid spin textures intermixing the effects of valence and conduction bands under topological quantum phase transitions, and spin texture binaries where alignment of the spins are reversed between domains in the momentum space with sharp boundaries. The results are validated through density functional calculations.
description: 11 pages, 10 figures
Constraints on the spectral index for the inflation models in string landscape
Creators: name: Huang, Qing-Guo
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We conjecture that the inflation models with trans-Planckian excursions in the field space should be in the swampland. We check this conjecture in a few examples and investigate the constraints on the spectral index for the slow-roll inflation model in string landscape where the variation of inflaton during the period of inflation is less than the Planck scale $M_p$. A red primordial power spectrum with a lower bound on the spectral index is preferred. Both the tensor-scalar ratio and the running can be ignored.
description: 5 pages, 1 figure; refs added, version for publication in Phys.Rev.D (rapid communication)
Quantum Algorithms in IBMQ Experience: Deutsch-Jozsa algorithm
Creators: name: Oliveira, Antonio N.
name: de Oliveira, Estêvão V. B.
name: Santos, Alan C.
name: Villas-Bôas, Celso J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum information processing has been one of the pillars of the new information age. In this sense, the control and processing of quantum information plays a fundamental role, and computers capable of manipulating such information have become a reality. In this article we didactically present basic elements of the latest version of IBM's quantum computer and its main tools. We also present in detail the Deutsch-Jozsa algorithm used to differentiate constant functions from balanced functions, also, including a discussion of its efficiency against classical algorithms for the same task. The experimental implementation of the algorithm in a 4-qbit system is presented. Our article paves the way for a series of didactic investigations into the IBM system as well as the best known quantum algorithms.
description: in Portuguese
The Detection of Low Mass Companions in Hyades Cluster Spectroscopic Binary Stars
Creators: name: Bender, C. F.
name: Simon, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have observed a large sample of spectroscopic binary stars in the Hyades Cluster, using high resolution infrared spectroscopy to detect low mass companions. We combine our double-lined infrared measurements with well constrained orbital parameters from visible light single-lined observations to derive dynamical mass ratios. Using these results, along with photometry and theoretical mass-luminosity relationships, we estimate the masses of the individual components in our binaries. In this paper we present double-lined solutions for 25 binaries in our sample, with mass ratios from ~0.1-0.8. This corresponds to secondary masses as small as ~0.15 Msun. We include here our preliminary detection of the companion to vB 142, with a very small mass ratio of q=0.06+-0.04; this indicates that the companion may be a brown dwarf. This paper is an initial step in a program to produce distributions of mass ratio and secondary mass for Hyades cluster binaries with a wide range of periods, in order to better understand binary star formation. As such, our emphasis is on measuring these distributions, not on measuring precise orbital parameters for individual binaries.
description: 36 pages, 8 figures, accepted for publication in The Astrophysical Journal
Schwinger Pair Production at Finite Temperature in Scalar QED
Creators: name: Kim, Sang Pyo
name: Lee, Hyun Kyu
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In scalar QED we study the Schwinger pair production from an initial ensemble of charged bosons when an electric field is turned on for a finite period together with or without a constant magnetic field. The scalar QED Hamiltonian depends on time through the electric field, which causes the initial ensemble of bosons to evolve out of equilibrium. Using the Liouville-von Neumann method for the density operator and quantum states for each momentum mode, we calculate the Schwinger pair-production rate at finite temperature, which is the pair-production rate from the vacuum times a thermal factor of the Bose-Einstein distribution.
description: RevTex 10 pages, no figure; replaced by the version accepted in Phys. Rev. D; references corrected
Testing the EPR Locality using B-Mesons
Creators: name: Ichikawa, Tsubasa
name: Tamura, Satoshi
name: Tsutsui, Izumi
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the possibility of testing local realistic theory (LRT), envisioned implicitly by Einstein, Podolsky and Rosen in 1935, based on the Bell inequality for the correlations in the decay modes of entangled K or B-mesons. It is shown that such a test is possible for a restricted class of LRT, despite the passive nature of decay events and/or the non-unitary treatment of the correlations which invalidate the test for general LRT. Unfortunately, the present setup of the KEKB (Belle) experiment, where the coherence of entangled B-mesons has been confirmed recently, does not admit such a test due to the inability of determining the decay times of the entangled pairs separately. The indeterminacy also poses a problem for ensuring the locality of the test, indicating that improvement to resolve the indeterminacy is crucial for the test of LRT.
description: 14 pages, PlainTeX, minor revision
Otoba cyclobasis Jaramillo & Balslev 2001
Creators: name: Jaramillo-Vivanco, Tatiana S.
name: Balslev, Henrik
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Magnoliales
Myristicaceae
Otoba
Otoba cyclobasis

description: Otoba cyclobasis Jaramillo & Balslev (2001: 563).
Type:— ECUADOR. Esmeraldas: Eloy Alfaro, Reserva Ecológica Cotacachi– Cayapas, Charco Vicente, Río San Miguel de Cayapas, 150 m, Mar 1993, Méndez et al. 156, staminate (holotype: MO!; isotypes: F!, QCNE!, UPCB).
Petiole 10–15 × 1 mm, obscurely winged; lamina 9–14(–18) × 3–5 cm, usually whitish and glabrescent below; secondary veins 14–17 per side; intramarginal veins absent. Staminate inflorescence sessile; partial inflorescences (2–)3, pubescent, ca. 20-flowered; umbelliform parts alternate, flowers 4–8; bracteoles absent. Staminate flowers with pedicel 4–5 mm long; perianth ca. 2.5 mm long, inner surface spongy with a swollen ring at base surrounding the filament column; androecium 1.5–2.0 mm long; filament column not bottle-shaped (with parallel sides), fused; anthers globose, apex obtuse, dorsally attached to the filament column apex, ca. 0.3 mm long. Pistillate inflorescence similar to the staminate one, but with 4 lobes, bracteoles present. Pistillate flowers similar to the staminate ones, but with perianth of 1.8 mm long, inner surface smooth; gynoecium 0.6 mm long; ovary glabrous, globose and short-stalked, ca. 0.5 × 0.5 mm long; stigmatic lobes fused along both sides. Infructescence with 1–2 fruits. Fruit 1.5–2.5 × 1.5–2.0 cm, globose to subglobose, apex apiculate; pericarp 1–2 mm thick; aril white-yellow; seed 1.0–2.0 × 1.0– 1.5 cm, occasionally with an apical prickle.
Representative specimens examined:— ECUADOR. Carchi: Reserva Étnica Awá, 25 km NW of El Chical, Rubio et al. 1057 (MO, QCNE). Esmeraldas: Reserva Ecológica Cotacachi-Cayapas, Río San Miguel, Charco Vicente, 10 km S of San Miguel de Cayapas, Méndez et al. 62 (F, MO, QCNE).
Distribution:— Known only from a small area in the Chocó (Fig. 2), northwestern Ecuador, but it could be present in southwestern Colombia, where it shares habitat with the similar O. gracilipes, which differs from O. cyclobasis in its leaf morphology and androecium characteristics (Jaramillo & Balslev 2001). Also, it occurs in the same area as O. gordoniifolia and O. novogranatensis, which are different from this species in leaf size (Table 1). It has been collected up to 300 m.
Conservation status:— EN, endangered (IUCN 2020).
description: Published as part of Jaramillo-Vivanco, Tatiana S. & Balslev, Henrik, 2020, Revision of Otoba (Myristicaceae), pp. 143-175 in Phytotaxa 441 (2) on pages 153-154, DOI: 10.11646/phytotaxa.441.2.3, http://zenodo.org/record/13872038
On a doubly nonlinear diffusion model of chemotaxis with prevention of overcrowding
Creators: name: Bendahmane, Mostafa
name: Brger, Raimund
name: Baier, Ricardo Ruiz
name: Urbano, José Miguel
Publisher: name: arXiv
Year: 2008
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35K65; 92C17; 35B65

description: This paper addresses the existence and regularity of weak solutions for a fully parabolic model of chemotaxis, with prevention of overcrowding, that degenerates in a two-sided fashion, including an extra nonlinearity represented by a $p$-Laplacian diffusion term. To prove the existence of weak solutions, a Schauder fixed-point argument is applied to a regularized problem and the compactness method is used to pass to the limit. The local Hölder regularity of weak solutions is established using the method of intrinsic scaling. The results are a contribution to showing, qualitatively, to what extent the properties of the classical Keller-Segel chemotaxis models are preserved in a more general setting. Some numerical examples illustrate the model.
Solar heating of integrated greenhouse-animal shelter systems
Creators: name: Ben-Abdallah, Noureddine
Publisher: name: University of British Columbia
Year: 2010

description: An analytical procedure to determine the effectiveness of greenhouse, as solar collectors was presented. This procedure was used to predict the effect of several construction parameters on solar radiation input to greenhouses. The orientation of the greenhouse was found to be the most effective construction parameter controlling solar radiation input to greenhouses. The effective albedo of the plant canopy was also found to be a significant factor. A new solar greenhouse design, suitable for high latitude regions was developed. The results showed that an internal solar collector could be incorporated as an integral part of the greenhouse design. The concept developed could be used as a free-standing greenhouse or in a combination with livestock building. The efficiency of the solar input was investigated for the conventional and the shed greenhouses, both as a free-standing unit and a greenhouse-animal shelter system, using computed simulation analyses. The results indicated that the efficiency of solar input is highly dependent on location; the effect of location on the shed type design is more profound. A typical case of a greenhouse-hog barn production system was investigated using computer simulation analyses. The results showed that such a food production system achieves a significant reduction in conventional fuel consumption due to both animal waste heat recovery and solar energy utilization.
Singularities in the Gravitational Capture of Dark Matter through Long-Range Interactions
Creators: name: Gaidau, Cristian
name: Shelton, Jessie
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We re-examine the gravitational capture of dark matter (DM) through long-range interactions. We demonstrate that neglecting the thermal motion of target particles, which is often a good approximation for short-range capture, results in parametrically inaccurate results for long-range capture. When the particle mediating the scattering process has a mass that is small in comparison to the momentum transfer in scattering events, correctly incorporating the thermal motion of target particles results in a quadratic, rather than logarithmic, sensitivity to the mediator mass, which substantially enhances the capture rate. We quantitatively assess the impact of this finite temperature effect on the captured DM population in the Sun as a function of mediator mass. We find that capture of DM through light dark photons, as in e.g. mirror DM, can be powerfully enhanced, with self-capture attaining a geometric limit over much of parameter space. For visibly-decaying dark photons, thermal corrections are not large in the Sun, but may be important in understanding long-range DM capture in more massive bodies such as Population III stars. We additionally provide the first calculation of the long-range DM self-evaporation rate.
description: v2: version accepted for publication in JCAP; 30 pages, 5 figures
High Resolution Cavity BPM for ILC Final Focal System (IP-BPM)
Creators: name: Nakamura, Tomoya
name: Honda, Yosuke
name: Inoue, Yoichi
name: Tauchi, Toshiaki
name: Urakawa, Junji
name: Sanuki, Tomoyuki
name: Komamiya, Sachio
Publisher: name: arXiv
Year: 2007
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: IP-BPM (Interaction Point Beam Position Monitor) is an ultra high resolution cavity BPM to be used at ATF2, a test facility for ILC final focus system. Control of beam position in 2 nm precision is required for ATF2. Beam tests at ATF extraction line proved a 8.7 nm position resolution.
description: 4 pages, 4 figures, LCWS2007 and ILC2007
Численное моделирование в задачах оценки волнового воздействия на заякоренный гидротехнический объект
Creators: name: Beisel, Sofya
name: Gusev, Oleg
name: Kikhtenko, Vladimir
name: Gayaz Khakimzyanov
name: Chubarov, Leonid
Publisher: name: figshare
Year: 2021
Subjects: subject: 10399 Numerical and Computational Mathematics not elsewhere classified
subject: FOS: Mathematics
subject: 10302 Numerical Solution of Differential and Integral Equations

description: В настоящем докладе обсуждается задача, связанная с оценкой вероятного воздействия волны цунами на гидротехнические объекты, предполагаемые к размещению в одной из Камчатских бухт. Решение задачи выполняется в два этапа, на первом из которых определяются участки акватории, в которых меры интенсивности волн цунами не будут превышать заданных пороговых значений с заданной повторяемостью.
На втором этапе выполняется моделирование воздействия длинных поверхностных волн на заякоренный гидротехнический объект, характеристики которого совпадают с параметрами реальных сооружений.
Отгинал опубликован на сайте II Всероссийской научной конференция «Волны цунами: моделирование, мониторинг, прогноз», 16-17 ноября2020 г. Сборник тезисов докладов / Под ред. М.А.Носова. – М.: Научный совет попроблемам цунами ОНЗ РАН, 2020 г. 52 с. Электронное издание.http://ocean.phys.msu.ru/tsu_conf/Abstracts-2020.pdf
Unusual superexchange pathways in a Ni triangular lattice of NiGa$_2$S$_4$ with negative charge-transfer energy
Creators: name: Takubo, K.
name: Mizokawa, T.
name: Son, J. -Y.
name: Nambu, Y.
name: Onuma, K.
name: Tonomura, H.
name: Nakatsuji, S.
name: Maeno, Y.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have studied the electronic structure of the Ni triangular lattice in NiGa$_2$S$_4$ using photoemission spectroscopy and subsequent model calculations. The cluster-model analysis of the Ni 2$p$ core-level spectrum shows that the S 3$p$ to Ni 3$d$ charge-transfer energy is $\sim$ -1 eV and the ground state is dominated by the $d^9L$ configuration ($L$ is a S 3$p$ hole). Cell perturbation analysis for the NiS$_2$ triangular lattice indicates that the strong S 3$p$ hole character of the ground state provides the enhanced superexchange interaction between the third nearest neighbor sites.
description: 10 pages, 5 figures, accepted to PRL