cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Real-time detection of Rydberg state dynamics of cold atoms using an optical cavity
Creators: name: Suarez, Elmer
name: Wolf, Philip
name: Weiss, Patrizia
name: Slama, Sebastian
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: This work reports on the real-time detection of internal-state dynamics of cold Rb$^{87}$ atoms being excited to the $30D_{5/2}$ Rydberg state via two-photon excitation. A mesoscopic cloud of atoms is overlapped with the mode volume of a confocal optical cavity and optically pumped by two laser beams transverse to the cavity axis. The excitation to Rydberg states changes the collective atom-cavity coupling, which is detected by monitoring the light transmitted through the cavity while being weakly driven. In addition to the damped coherent excitation dynamics and the decay back to the ground state, the data show a superradiant enhancement of the black-body radiation induced transitions from the $30D_{5/2}$ state to neighboring Rydberg states. Furthermore, they show a density dependent mitigation of the superradiant decay which is attributed to long range dipole-dipole interactions between atoms in the involved Rydberg states. These results contribute to solving a recent controversy on the interplay between BBR-induced superradiance and Rydberg atom interactions.
description: 9 pages, 5 figures
Taharana minutura Nielson 2015, sp. nov.
Creators: name: Nielson, M. W.
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadellidae
Taharana
Taharana minutura

description: Taharana minutura, sp. nov. (Plate 7B, Fig. 396-402) Description. Length. Male 8.00-8.20 mm., female unknown. External morphology. Moderately long, slender species. General color black. Forewings black with short, yellow stripes on veins, numerous, irregular, dark brown markings in cells; mesonotum black with yellow spots; pronotum black, bullae yellow; crown light brown, black stripe on each side of middle; eyes dull ivory; face light yellow, clypeus with longitudinal, orange brown stripe on inner lateral margins; clypellus unmarked; head narrower than pronotum, broadly and evenly rounded; crown short, narrower than width of eyes, slightly produced anteriorly, lateral margins convergent basally; eyes large, semi oval; pronotum moderately large, about 1/3 longer medially than crown, surface bullated; mesonotum large, nearly twice as long as pronotum; clypeus long, narrow, lateral margins broadly convex; clypellus short, narrow, apex flared laterally. Male genitalia. Pygofer in lateral view glabrous with moderately long, narrow caudodorsal process, caudoventral process long, serrate on ventral margin, spine on dorsoapical margin (Fig. 396), in dorsal view caudodorsal process caliperate (Fig. 397); aedeagus long, tubular, shaft inflated basally in dorsal view, patch of fine teeth dorsoapically, gonopore in distal ¼ (Fig. 398, 399); style small, with short apophysis (Fig. 400); dorsal connective long, narrow (Fig. 398); connective small, anterior arms narrow, tapered anteriorly, medial ridge complete, stem large, ovate (Fig. 401); subgenital plate moderately long, slightly tapered in distal fifth, glabrous (Fig. 402). Material examined. Holotype male. THAILAND: Loei, Phu Kradueng NP, Koke Hi Ngam, 16 o 51.817' N 101 o 50.704’E., 270 m. / Pan traps, 10-11.viii.2006, Sutin Khonglasae, leg. T476 (QSBG). Paratype. 1 male, Phetchabun, Nam Nao NP, Hill evergreen forest, 16 o 44.387’N. 101 o 34.531’E., / 838 m., Pan traps, 31.v-1.vi.2007, Noopean Hongyothi and Leng Janteab, leg. T 2427 (MLBM). Etymology. The species name is descriptive for the small style and connective. Remarks. From T. phetchabunensis to which it has a similar caudoventral process, T. minutura can be distinguished by the narrower caudodorsal process, tapered subgenital plate, forceps-like caudodorsal pygofer processes in dorsal view and by the narrower anterior arms of the connective.
description: Published as part of Nielson, M. W., 2015, A revision of the tribe Coelidiini of the Oriental, Palearctic and Australian biogeographical regions (Hemiptera: Cicadellidae: Coelidiinae), pp. 1-202 in Insecta Mundi 2015 (410) on pages 69-70, DOI: 10.5281/zenodo.5181587
Photophoretic Strength on Chondrules 1: Modeling
Creators: name: Loesche, Christoph
name: Wurm, Gerhard
name: Teiser, Jens
name: Friedrich, Jon M.
name: Bischoff, Addi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Photophoresis is a physical process that transports particles in optical thin parts of protoplanetary disks, especially at the inner edge and at the optically surface. To model the transport and resulting effects in detail, it is necessary to quantify the strength of photophoresis for different particle classes as a fundamental input. Here, we explore photophoresis for a set of chondrules. The composition and surface morphology of these chondrules was measured by X-ray tomography. Based on the three-dimensional models, heat transfer through illuminated chondrules was calculated. The resulting surface temperature map was then used to calculate the photophoretic strength. We found that irregularities in particle shape and variations in composition induce variations in the photophoretic force. These depend on the orientation of a particle with respect to the light source. The variations of the absolute value of the photophoretic force on average over all chondrules is $4.17\%$. The deviation between the direction of the photophoretic force and illumination is $3.0^\circ \pm 1.5^\circ$. The average photophoretic force can be well approximated and calculated analytically assuming a homogeneous sphere with a volume equivalent mean radius and an effective thermal conductivity. We found an analytic expression for the effective thermal conductivity. The expression depends on the two main phases of a chondrule, and decreases with the amount of fine-grained devitrified, plagioclase-normative mesostasis up to factor of three. For the chondrule sample studied (Bjurböle chondrite), we found a dependence of the photophoretic force on chondrule size.
Taharana forcipia Nielson 2015, sp. nov.
Creators: name: Nielson, M. W.
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadellidae
Taharana
Taharana forcipia

description: Taharana forcipia, sp. nov. (Plate 7C, Fig. 403-409) Description. Length. Male 7.30-7.70 mm., female unknown. External morphology. Moderate size, slender species. General color black; forewings black with small, dark yellow stripes on veins, numerous small, irregular shape, light brown markings in cells; mesonotum black with dark yellow spots; pronotum black, surface with numerous, dark yellow bullae; crown light to dark yellow with narrow black stripe on each side of middle; eyes light to dark yellow; face light yellow; clypeus with narrow, longitudinal, reddish brown stripe on inside of lateral margins; clypellus with suffused orange longitudinal stripe medially; head narrower than pronotum, anterior margin broadly rounded; crown short, narrower than width of eyes, slightly produced anteriorly, lateral margins convergent basally; eyes large, semiglobular; clypeus long, narrow, lateral margins broadly convex, sinuate; clypellus short, narrow, apex flared laterally. Male genitalia. Pygofer small, glabrous, with narrow, broadly curved caudodorsal process, caudoventral process long, ventral margin broad along middle, tapered to sharp point apically, ventral margin minutely serrate (Fig. 403), in dorsal view caudodorsal processes caliperate (Fig. 404); aedeagus moderately long, tubular, shaft inflated in basal 1/ 3 in ventral view, narrow in distal 2/3, patch of small teeth on dorsoapical margin, gonopore in distal ¾ (Fig. 405, 406); style very small, short apophysis (Fig. 407); dorsal connective moderately long, narrow (Fig. 404); connective small, anterior arms narrow, medial ridge absent, stem short, digitate (Fig. 408); subgenital plate moderately long, broad, glabrous (Fig. 409). Material examined. Holotype male. THAILAND: Ubon, Ratchathani, Pha Taem NP., Rong Hi Noy, 15 o 40.021’N / 105 o 30.448’E, 240 m., Malaise trap, 7-14.i.2007, Thongkam and Pakdee, leg. T1479 (QSBG). Paratypes. 3 males, same data as holotype except First level- Huay / Sannom waterfall, 15 o 27.407' N 105 o 34.867’E., 230 m. Pan traps, 6.v.2007, Sorowit Mingnan, leg., T 2180 (QSBG, ULKY). Etymology. The name of the species is descriptive for the forceps-like caudodorsal pygofer processes in dorsal view. Remarks. This species is nearest to T. serrata in shape of the caudoventral process of the pygofer and can be separated by the smaller pygofer with shorter, curved, caudodorsal process in lateral view (very long, slender with subapical spine in T. serrata), by the narrower aedeagal shaft in lateral view and by the subgenital plate which is broader throughout.
description: Published as part of Nielson, M. W., 2015, A revision of the tribe Coelidiini of the Oriental, Palearctic and Australian biogeographical regions (Hemiptera: Cicadellidae: Coelidiinae), pp. 1-202 in Insecta Mundi 2015 (410) on page 70, DOI: 10.5281/zenodo.5181587
Taharana gracilata Nielson 2015, sp. nov.
Creators: name: Nielson, M. W.
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadellidae
Taharana
Taharana gracilata

description: Taharana gracilata, sp. nov. (Plate 7D, Fig. 410-416) Description. Length. Male 7.00-7.40 mm., female unknown. External morphology. Moderately large, slender species. General color black; forewings black with short, yellow stripes on veins, dark brown, irregularly shaped markings in cells; mesonotum black, without markings; pronotum black, bullae yellow; crown light to dark brown, without markings; eyes light to dark brown; face light brown, without markings; head narrower than pronotum, anterior margin rounded; crown moderately long, narrower than width of eyes, slightly produced anteriorly, lateral margins convergent basally; eyes large, semiglobular; pronotum moderately large, about as long medially as crown, surface bullated; mesonotum large, longer medially than pronotum; clypeus long, narrow, lateral margins broadly convex; clypellus short, narrow, apex flared. Male genitalia. Pygofer in lateral view narrow, long, glabrous, caudodorsal process very narrow, subapical spine in dorsal view, caudoventral process long, slightly sinuate, broad medially, tapered sharply apically, short row of small teeth on ventral margin medially (Fig. 410), in dorsal view caudodorsal processes caliperate with small subapical spine on inner lateral margin (Fig. 411); aedeagus long, tubular, shaft slightly broad in basal 1/3, tubular in distal 2/ 3 in lateral view, patch of small teeth in dorsoapical margin, gonopore sub-medial (Fig. 412, 413); style very small, base large with short, digitate apophysis (Fig. 414); dorsal connective long, narrow (Fig. 412); connective small, anterior arms very narrow, medial ridge complete, stem digitate (Fig. 415); subgenital plate moderately long, somewhat broad (Fig. 416). Material examined. Holotype male. THAILAND: Nakhon Si Thammarat, Namtok Yong NP, Behind / Campground Lavatory, 8 o 10.44’N 99 o 44.508’E, 80 m., / Pan trap, 30-31.vii.2008, U. Prai. K., leg., T3085 (QSBG). Paratypes. 4 males, same data as holotype, T 3080, T 3075, T 3075, T 3979 (QSBG, ULKY, MLBM). Etymology. The species name is descriptive for the slender pygofer processes and connective. Remarks. This species is similar to T. forcipia in features of the pygofer caudoventral process and can be distinguished by the pygofer with the subapical spine on a very narrow caudodorsal process and broader arms of the connective.
description: Published as part of Nielson, M. W., 2015, A revision of the tribe Coelidiini of the Oriental, Palearctic and Australian biogeographical regions (Hemiptera: Cicadellidae: Coelidiinae), pp. 1-202 in Insecta Mundi 2015 (410) on pages 70-71, DOI: 10.5281/zenodo.5181587
Hysteresis and return point memory in the random field Blume Capel model
Creators: name: Aldrin, B. E.
name: Khaleque, Abdul
name: Sumedha
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the zero temperature steady state of the random field Blume Capel model with spin-flip Glauber dynamics on a random regular graph. The magnetization m as a function of the external field H is observed to have double hysteresis loops with a return point memory. We also solve the model on a Bethe lattice in the approximation that the spin relaxation dynamics is abelian and find good agreement between simulations on random regular graphs and Bethe lattice calculations for negative values of H.
description: version accepted in Phys. Rev. E
Webbolidia magna Nielson 2015, sp. nov.
Creators: name: Nielson, M. W.
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadellidae
Webbolidia
Webbolidia magna

description: Webbolidia magna, sp. nov. (Plate 7I, Fig. 444-450) Description. Length. Male 9.40-10.00 mm., female unknown. External morphology. Large, robust species. General color dark brown to black; forewings with small, yellow stripes on black veins, cells uniformly dark brown, translucent; mesonotum black; pronotum black, bullae yellow; crown light to dark brown, eyes dark brown; face light brown; clypeus light brown with dark brown, longitudinal stripe on inner lateral margins; clypellus light brown; head narrower than pronotum, anterior margin obtusely rounded; crown broad, about as wide as width of eyes, slightly produced anteriorly, lateral margins convergent basally; pronotum large, nearly twice as long medially as crown, surface bullated; mesonotum large, nearly twice as long medially as pronotum; clypeus long, narrow, lateral margins broadly convex; clypellus narrow, apex flared laterally. Male genitalia. Pygofer very large, broadly triangulate, glabrous, apex narrowed with digitate lobe apically, caudoventral margin with digitate process (Fig. 444); aedeagus very long, shaft straight in dorsal view, slightly sinuate in lateral view, shaft toothed on apical 1/6, short setae slightly subapical, gonopore near middle of shaft (Fig. 445, 446); dorsal connective long, narrow (Fig. 445); connective large, anterior arms narrowly angled, medial ridge absent, stem large, ovate (Fig. 449); subgenital plate very long, narrow, with long apical spine, sparsely setose along inner lateral margin near apex, sparsely setose subapically on outer lateral margin (Fig. 450). Material examined. Holotype male. LAOS-N: (Oudomxai), 1-9.v.2000, 1100 m., 20 o 45’N. 102 o 09’E., Oudom Xai, (17 km. nee), Vit Kuban, leg. / Entomological expedition, “Laos 2002”, Moravian Museum, Brno, Czech Republic (MMBC). Additional material: 19 males, same data as holotype (MMBC), 20 males, LAOS: Louang Namtha prov., 21 o 09’N 101 o 19’E., Namtha-Muang Sing, 5-31.v.1997, 900- 1200 m., Vit Kuban, leg. (MMBC, MLBM). Etymology. The name of the species is descriptive for the large pygofer, subgenital plate and connective and very long aedeagus. Remarks. From W. kristenseni to which it is similar, W. magna can be distinguished by very long, robust spine on the subgenital plate, a single subapical aedeagal seta (2 in W. kristenseni) and the narrowed apex of the pygofer.
description: Published as part of Nielson, M. W., 2015, A revision of the tribe Coelidiini of the Oriental, Palearctic and Australian biogeographical regions (Hemiptera: Cicadellidae: Coelidiinae), pp. 1-202 in Insecta Mundi 2015 (410) on pages 77-78, DOI: 10.5281/zenodo.5181587
Optimizing the Human Learnability of Abstract Network Representations
Creators: name: Qian, William
name: Lynn, Christopher W.
name: Klishin, Andrei A.
name: Stiso, Jennifer
name: Christianson, Nicolas H.
name: Bassett, Dani S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Precisely how humans process relational patterns of information in knowledge, language, music, and society is not well understood. Prior work in the field of statistical learning has demonstrated that humans process such information by building internal models of the underlying network structure. However, these mental maps are often inaccurate due to limitations in human information processing. The existence of such limitations raises clear questions: Given a target network that one wishes for a human to learn, what network should one present to the human? Should one simply present the target network as-is, or should one emphasize certain parts of the network to proactively mitigate expected errors in learning? To answer these questions, we study the optimization of network learnability. Evaluating an array of synthetic and real-world networks, we find that learnability is enhanced by reinforcing connections within modules or clusters. In contrast, when networks contain significant core-periphery structure we find that learnability is best optimized by reinforcing peripheral edges between low-degree nodes. Overall, our findings suggest that the accuracy of human network learning can be systematically enhanced by targeted emphasis and de-emphasis of prescribed sectors of information.
K'ang-hsi erh-shih-wu nien jun szu yüeh shih-liu jih chi-szu wang yüeh-shih-t'u; [1686]
Creators: name: Verbiest, Ferdinand
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2016

description: Leporello. - Text chin. und mandjur. - Berechnung der Mondfinsternis vom 16. Tag. des 4. Schaltmonats (6.6.) 1686
Quasi Periodic Oscillations in a Radiative Transonic Flow: Results of a Coupled Monte Carlo-TVD Simulation
Creators: name: Garain, Sudip K.
name: Ghosh, Himadri
name: Chakrabarti, Sandip K.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Low and intermediate frequency quasi-periodic oscillations (QPOs) in black hole candidates are believed to be due to oscillations of the Comptonizing regions in an accretion flow. Assuming that the general structure of an accretion disk is a Two Component Advective Flow (TCAF), we numerically simulate the light curves emitted from an accretion disk for different accretion rates and find how the QPO frequencies vary. We use a standard Keplerian disk residing at the equatorial plane as a source of soft photons. These soft photons, after suffering multiple scattering with the hot electrons of the low angular momentum, sub-Keplerian, flow emerge out as hard radiation. The hydrodynamic and thermal properties of the electron cloud is simulated using a Total Variation Diminishing (TVD) code. The TVD code is then coupled with a radiative transfer code which simulates the energy exchange between the electron and radiation using Monte Carlo technique. The resulting localized heating and cooling are included also. We find that the QPO frequency increases and the spectrum becomes softer as we increase the Keplerian disk rate. However, the spectrum becomes harder if we increase the sub-Keplerian accretion rate. We find that an earlier prediction that QPOs occur when the infall time scale roughly matches with the cooling time scale, originally obtained using a power-law cooling, remains valid even for Compton cooling. Our findings agree with the general observations of low frequency QPOs in black hole candidates.
description: 19 pages, 8 figures, accepted for publication in MNRAS, comments are welcome. arXiv admin note: text overlap with arXiv:1210.3515, arXiv:1105.4245
Equus hemionus Pallas 1775
Creators: name: Honacki, James H.
name: Kinman, Kenneth E.
name: Koeppl, James W.
Publisher: name: Zenodo
Year: 1982
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Perissodactyla
Equidae
Equus
Equus hemionus

description: Equus hemionus Pallas, 1775. Nova Comm. Acad. Sci. Petrop., 19: 397. TYPE LOCALITY: U.S. S. R., Transbaikalia, S. Chitinsk. Obi., Tarei-Nor, 50° N, 115° E. DISTRIBUTION: Formerly much of Mongolia, north to Transbaikalia (U.S. S. R.); east to N.E. Inner Mongolia (China) and possibly W. Manchuria (China); west to Dzhungarian Gate. Survives in S.W. and S. C. Mongolia and adjacent China; see Sokolov and Orlov, 1980:248. COMMENT: Includes luteus (E)KB). Groves and Mazak, 1967, Z. Saugetierk., 32:321-355, Corbet, 1978:194, and Gromov and Baranova, 1981:335, included onager in this species, but Bennett, 1980, Syst. Zool., 29:272-287, considered it a distinct species. See Sokolov and Orlov, 1980: 248 for discussion of Mongolian and Chinese stocks. PROTECTED STATUS: CITES - Appendix II and U.S. ESA - Endangered as E. hemionus. CITES - Appendix I as E. h. hemionus subspecies only. ISIS NUMBER: 5301418001001005001.
description: Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Perissodactyla, pp. 308-311 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on page 309, DOI: 10.5281/zenodo.7353013
description: {"references": ["Sokolov, V. E., and V. N. Orlov. 1980. Opredelitel' mlekopitayushchickh Mongol'skoi Narodnoi Respubliki [Guide to the mammals of the Mongolian People's Republic]. Nauka, Moscow, 351 pp. (in Russian).", "Groves, C. P., and V. Mazak. 1967. On some taxonomic problems of the Asiatic wild asses: With the description of a new subspecies (Perissodactyla, Equidae). Zeitschrift fur Saugetierkunde, 32: 321 - 355.", "Gromov, I. M., and G. I. Baranova (eds.). 1981. Katalog mlekopitayushchikh SSSR [Catalog of mammals of the USSR]. Nauka, Leningrad, 456 pp. (in Russian).", "Bennett, D. K. 1980. Stripes do not a zebra make, part 1: A cladistic analysis of Equus. Systematic Zoology, 29: 272 - 287."]}
In vitro antioxidant, alpha-glucosidase inhibition and antibacterial properties of Turbinaria decurrens Bory (Sargassaceae, Ochrophyta)
Creators: name: Eldrin Arguelles
Publisher: name: Asia-Pacific Journal of Science and Technology
Year: 2020
Subjects: Algae, Bacterial pathogens, Bioactive compounds, Biological activity, Diabetes, Macroalgae, Philippines, Polyphenols, Phytochemicals, Seaweed, Turbinaria

description: Asia-Pacific Journal of Science and Technology, 25, 3, 1-9
Phases and dynamics of ultracold bosons in a tilted optical lattice
Creators: name: Sengupta, K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a brief overview of the phases and dynamics of ultracold bosons in an optical lattice in the presence of a tilt. We begin with a brief summary of the possible experimental setup for generating the tilt. This is followed by a discussion of the effective low-energy model for these systems and its equilibrium phases. We also chart the relation of this model to the recently studied system of ultracold Rydberg atoms. Next, we discuss the non-equilibrium dynamics of this model for quench, ramp and periodic protocols with emphasis on the periodic drive which can be understood in terms of an analytic, albeit perturbative, Floquet Hamiltonian derived using Floquet perturbation theory (FPT). Finally, taking cue from the Floquet Hamiltonian of the periodically driven tilted boson chain, we discuss a spin model which exhibits Hilbert space fragmentation and exact dynamical freezing for wide range of initial states.
description: v2: added references along with minor changes. 22 pages; to appear in "Springer volume: Entanglement in Spin Chains -- Theory and Quantum Technology Applications"
Equus kiang Moorcroft 1841
Creators: name: Honacki, James H.
name: Kinman, Kenneth E.
name: Koeppl, James W.
Publisher: name: Zenodo
Year: 1982
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Perissodactyla
Equidae
Equus
Equus kiang

description: Equus kiang Moorcroft, 1841. Travels in the Himalayan Provinces, 1:312. TYPE LOCALITY: India, Kashmir, Ladakh. DISTRIBUTION: Populations exist in dry, intermontane basins of Ladakh (India); Tibet, Tsinghai, Szechwan (China) and adjacent Nepal and Sikkim. COMMENT: Groves and Mazak, 1967, Z. Saugetierk., 32:321-355; Corbet, 1978:195; and Bennett, 1980, Syst. Zool., 29:272-287, recommended separating kiang from hemionus.
description: Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Perissodactyla, pp. 308-311 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on page 309, DOI: 10.5281/zenodo.7353013
description: {"references": ["Groves, C. P., and V. Mazak. 1967. On some taxonomic problems of the Asiatic wild asses: With the description of a new subspecies (Perissodactyla, Equidae). Zeitschrift fur Saugetierkunde, 32: 321 - 355.", "Bennett, D. K. 1980. Stripes do not a zebra make, part 1: A cladistic analysis of Equus. Systematic Zoology, 29: 272 - 287."]}
Ribbon graphs and bialgebra of Lagrangian subspaces
Creators: name: Kleptsyn, Victor
name: Smirnov, Evgeny
Publisher: name: arXiv
Year: 2014
Subjects: subject: Geometric Topology (math.GT)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 57M20, 57M27 (primary), 57M15, 05C25 (secondary)

description: To each ribbon graph we assign a so-called L-space, which is a Lagrangian subspace in an even-dimensional vector space with the standard symplectic form. This invariant generalizes the notion of the intersection matrix of a chord diagram. Moreover, the actions of Morse perestroikas (or taking a partial dual) and Vassiliev moves on ribbon graphs are reinterpreted nicely in the language of L-spaces, becoming changes of bases in this vector space. Finally, we define a bialgebra structure on the span of L-spaces, which is analogous to the 4-bialgebra structure on chord diagrams.
description: 21 pages, 13 figures. v2: major revision, Sec 2 and 3 completely rewritten; v3: minor corrections. Final version, to appear in Journal of Knot Theory and its Ramifications
Bistable turbulence in strongly magnetised plasmas with a sheared mean flow
Creators: name: Christen, Nicolas
name: Barnes, Michael
name: Hardman, Michael R.
name: Schekochihin, Alexander A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The prevailing paradigm for plasma turbulence associates a unique stationary state to given equilibrium parameters. We report the discovery of bistable turbulence in a strongly magnetised plasma. Two distinct states, obtained with identical equilibrium parameters in first-principle gyrokinetic simulations, have turbulent fluxes of particles, momentum and energy that differ by an order of magnitude, with the low-transport state agreeing with experimental observations. Occurrences of the two states are regulated by the competition between an externally imposed mean flow shear and "zonal" flows generated by the plasma. With small turbulent amplitudes, zonal flows have little impact, and the mean shear causes turbulence to saturate in a low-transport state. With larger amplitudes, the zonal shear can (partially) oppose the effect of the mean shear, allowing the system to sustain a high-transport state. This poses a new challenge for research that has so far assumed a uniquely defined turbulent state.
Equus onager Boddaert 1785
Creators: name: Honacki, James H.
name: Kinman, Kenneth E.
name: Koeppl, James W.
Publisher: name: Zenodo
Year: 1982
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Perissodactyla
Equidae
Equus
Equus onager

description: Equus onager Boddaert, 1785. Elench. Anim., p. 60. TYPE LOCALITY: N.W. Persia (= Iran), Kasbin, near Caspian. DISTRIBUTION: Formerly much of Central Asian republics (U.S. S.R.) north to upper Irtysh and Ural Rivers; westward north of the Caucasus and Black Sea at least to Dniestr River; and S.E. of Caspian Sea, Anatolia, N. Iraq, Iran, Afghanistan, and Pakistan to Thar Desert of N.W. India; survives as isolated populations in Rann of Kutch (India), Badkhys Preserve, Turkmenia (U.S. S.R.); and central Iran; also reestablished on Barsa-khelmes Isl. (Aral Sea) (U.S. S. R.). COMMENT: Includes hemippus, khur, and kulan (DKB); most previous workers regarded onager as a synonym of hemionus, but Bennett, 1980, Syst. Zool., 29:272-287, considered it a distinct species; see comments under hemionus. PROTECTED STATUS: CITES - Appendix I as E. hemionus khur subspecies only.
description: Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Perissodactyla, pp. 308-311 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on page 309, DOI: 10.5281/zenodo.7353013
description: {"references": ["Bennett, D. K. 1980. Stripes do not a zebra make, part 1: A cladistic analysis of Equus. Systematic Zoology, 29: 272 - 287."]}
Globally aligned states and hydrodynamic traffic jams in confined active suspensions
Creators: name: Lefauve, Adrien
name: Saintillan, David
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Chaotic Dynamics (nlin.CD)
subject: Biological Physics (physics.bio-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Strongly confined active liquids are subject to unique hydrodynamic interactions due to momentum screening and lubricated friction by the confining walls. Using numerical simulations, we demonstrate that 2D dilute suspensions of fore-aft asymmetric polar swimmers in a Hele-Shaw geometry can exhibit a rich variety of novel phase behaviors depending on particle shape, including: coherent polarized density waves with global alignment, stationary asters, persistent counter-rotating vortices, density shocks and rarefaction waves. We also explain these phenomena using a linear stability analysis and a nonlinear traffic flow model, both derived from a mean-field kinetic theory.
description: 5 pages, 5 figures
Equus quagga Gmelin 1788
Creators: name: Honacki, James H.
name: Kinman, Kenneth E.
name: Koeppl, James W.
Publisher: name: Zenodo
Year: 1982
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Perissodactyla
Equidae
Equus
Equus quagga

description: Equus quagga Gmelin, 1788. In Linnaeus, Syst. Nat., 13th ed „ 1:213. TYPE LOCALITY: South Africa. DISTRIBUTION: South Africa, south of the Vaal River. COMMENT: Extinct; last specimen, a captive, died in 1872. See also comments under burchelli.
description: Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Perissodactyla, pp. 308-311 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on page 309, DOI: 10.5281/zenodo.7353013
An Improved Genetic Algorithm and Its Application in Neural Network Adversarial Attack
Creators: name: Yang, Dingming
name: Yu, Zeyu
name: Yuan, Hongqiang
name: Cui, Yanrong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Cryptography and Security (cs.CR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences
subject: I.4.0; I.2.10
subject: 68T07, 65D19

description: The choice of crossover and mutation strategies plays a crucial role in the searchability, convergence efficiency and precision of genetic algorithms. In this paper, a novel improved genetic algorithm is proposed by improving the crossover and mutation operation of the simple genetic algorithm, and it is verified by 15 test functions. The qualitative results show that, compared with three other mainstream swarm intelligence optimization algorithms, the algorithm can not only improve the global search ability, convergence efficiency and precision, but also increase the success rate of convergence to the optimal value under the same experimental conditions. The quantitative results show that the algorithm performs superiorly in 13 of the 15 tested functions. The Wilcoxon rank-sum test was used for statistical evaluation, showing the significant advantage of the algorithm at $95\%$ confidence intervals. Finally, the algorithm is applied to neural network adversarial attacks. The applied results show that the method does not need the structure and parameter information inside the neural network model, and it can obtain the adversarial samples with high confidence in a brief time just by the classification and confidence information output from the neural network.
description: 18 pages, 9 figures, 9 tables and 23 References
Equus zebra Linnaeus 1758
Creators: name: Honacki, James H.
name: Kinman, Kenneth E.
name: Koeppl, James W.
Publisher: name: Zenodo
Year: 1982
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Perissodactyla
Equidae
Equus
Equus zebra

description: Equus zebra Linnaeus, 1758. Syst. Nat., 10th ed., 1:74. TYPE LOCALITY: South Africa, S.W. Cape Prov., Paardeburg, near Malmesbury. DISTRIBUTION: Formerly in S. Angola; Namibia; S.W. and S.C. Cape Prov. (South Africa). COMMENT: E. z. zebra is nearly extinct in the wild; recent counts indicate fewer than 70 alive in their habitat within remote mountain basins of the Cape Province, South Africa. PROTECTED STATUS: CITES - Appendix I and U.S. ESA - Endangered as E. z. zebra subspecies only. CITES - Appendix II as E. z. hartmannae subspecies only. ISIS NUMBER: 5301418001001007001.
description: Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Perissodactyla, pp. 308-311 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on page 309, DOI: 10.5281/zenodo.7353013
Relativistic scattering of a fast spinning neutron star by a massive black hole
Creators: name: Li, Kaye Jiale
name: Wu, Kinwah
name: Leung, Po Kin
name: Singh, Dinesh
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The orbital dynamics of fast spinning neutron stars encountering a massive Black Hole (BH) with unbounded orbits are investigated using the quadratic-in-spin Mathisson-Papapetrou- Dixon (MPD) formulation. We consider the motion of the spinning neutron stars with astrophysically relevant speed in the gravity field of the BH. For such slow-speed scattering, the hyperbolic orbits followed by these neutron stars all have near the e = 1 eccentricity, and have distinct properties compared with those of e >> 1. We have found that compared with geodesic motion, the spin-orbit and spin-spin coupling will lead to a variation of scattering angles at spatial infinity, and this variation is more prominent for slow-speed scattering than fast-speed scattering. Such a variation leads to an observable difference in pulse-arrival-time within a few hours of observation, and up to a few days or months for larger BH masses or longer spinning periods. Such a relativistic pulsar-BH system also emits a burst of gravitational waves (GWs) in the sensitivity band of LISA, and for optimal settings, can be seen up to 100 Mpc away. A radio follow up of such a GW burst with SKA or FAST will allow for measuring the orbital parameters with high accuracy and testing the predictions of General Relativity (GR).
Wavenumber-dependent Gilbert damping in metallic ferromagnets
Creators: name: Li, Yi
name: Bailey, W. E.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: New terms to the dynamical equation of magnetization motion, associated with spin transport, have been reported over the past several years. Each newly identified term is thought to possess both a real and an imaginary effective field leading to fieldlike and dampinglike torques on magnetization. Here we show that three metallic ferromagnets possess an imaginary effective-field term which mirrors the well-known real effective-field term associated with exchange in spin waves. Using perpendicular standing spin wave resonance between 2-26 GHz, we evaluate the magnitude of the finite-wavenumber ($k$) dependent Gilbert damping $α$ in three typical device ferromagnets, Ni$_{79}$Fe$_{21}$, Co, and Co$_{40}$Fe$_{40}$B$_{20}$, and demonstrate for the first time the presence of a $k^2$ term as $Δα=Δα_0+A_{k}\cdot k^2$ in all three metals. We interpret the new term as the continuum analog of spin pumping, predicted recently, and show that its magnitude, $A_{k}$=0.07-0.1 nm$^2$, is consistent with transverse spin relaxation lengths as measured by conventional (interlayer) spin pumping.
description: Preprint version. 5 pages, 4 figures
Representation of professions in entertainment media: Insights into frequency and sentiment trends through computational text analysis
Creators: name: Baruah, Sabyasachee
name: Somandepalli, Krishna
name: Narayanan, Shrikanth
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: Computers and Society (cs.CY)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Societal ideas and trends dictate media narratives and cinematic depictions which in turn influences people's beliefs and perceptions of the real world. Media portrayal of culture, education, government, religion, and family affect their function and evolution over time as people interpret and perceive these representations and incorporate them into their beliefs and actions. It is important to study media depictions of these social structures so that they do not propagate or reinforce negative stereotypes, or discriminate against any demographic section. In this work, we examine media representation of professions and provide computational insights into their incidence, and sentiment expressed, in entertainment media content. We create a searchable taxonomy of professional groups and titles to facilitate their retrieval from speaker-agnostic text passages like movie and television (TV) show subtitles. We leverage this taxonomy and relevant natural language processing (NLP) models to create a corpus of professional mentions in media content, spanning more than 136,000 IMDb titles over seven decades (1950-2017). We analyze the frequency and sentiment trends of different occupations, study the effect of media attributes like genre, country of production, and title type on these trends, and investigate if the incidence of professions in media subtitles correlate with their real-world employment statistics. We observe increased media mentions of STEM, arts, sports, and entertainment occupations in the analyzed subtitles, and a decreased frequency of manual labor jobs and military occupations. The sentiment expressed toward lawyers, police, and doctors is becoming negative over time, whereas astronauts, musicians, singers, and engineers are mentioned favorably. Professions that employ more people have increased media frequency, supporting our hypothesis that media acts as a mirror to society.
description: 27 pages, 15 figures
Metrological Investigation of the (6,5) Carbon Nanotube Absorption Cross Section
Creators: name: Oudjedi, Laura
name: Parra-Vasquez, A. Nicholas G.
name: Godin, Antoine
name: Cognet, Laurent
name: Lounis, Brahim
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Using single-nanotube absorption microscopy, we measured the absorption cross section of (6,5) carbon nanotubes at their second-order optical transition. We obtained a value of 3.2 10-17 cm2/C atom with a precision of 15% and an accuracy below 20%. This constitutes the first metrological investigation of the absorption cross section of chirality-identified nanotubes. Correlative absorption-luminescence microscopies performed on long nanotubes reveal a direct manifestation of exciton diffusion in the nanotube.
The PTI Carbon Star Angular Size Survey: Effective Temperatures and Non-Sphericity
Creators: name: van Belle, Gerard T.
name: Paladini, Claudia
name: Aringer, Bernhard
name: Hron, Josef
name: Ciardi, David R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report new interferometric angular diameter observations of 41 carbon stars observed with the Palomar Testbed Interferometer (PTI). Two of these stars are CH carbon stars and represent the first such measurements for this subtype. Of these, 39 have Yamashita (1972,1975) spectral classes and are of sufficiently high quality that we may determine the dependence of effective temperature on spectral type. We find that there is a tendency for the effective temperature to increase with increasing temperature index by ~120K per step, starting at T_EFF ~= 2500K for C3,y, although there is a large amount of scatter about this relationship. Overall, the median effective temperature for the carbon star sample is found to be 2800 +- 270K, and the median linear radius is 360 +- 100 R_SUN. We also find agreement on average within 15K with the T_EFF determinations of Bergeat (2001,2002a,b), and a refinement of carbon star angular size prediction based on V & K magnitudes is presented that is good to an rms of 12%. A subsample of our stars have sufficient {u,v} coverage to permit non-spherical modeling of their photospheres, and a general tendency for detection of statistically significant departures from sphericity with increasing signal-to-noise of the interferometric data is seen. The implications of most - and potentially all - carbon stars being non-spherical is considered in the context of surface inhomogeneities and a rotation-mass loss connection.
description: 59 pages, 15 figures, 6 tables; accepted for publication in ApJ
The perception of Brexit uncertainty and how it affects markets
Creators: name: Kreuzer, Christian
name: Priberny, Christopher
name: Huther, Johannes
Publisher: name: Universität Regensburg
Year: 2025
Subjects: subject: Brexit, event study, perception, Google Trends, GJR-GARCH, United King- dom
subject: 330 Wirtschaft
subject: G14, G11, G39, H87

description: We empirically study the perception of political uncertainty by UK’s stock markets, covering the entire Brexit period from January 2013 to March 2020. We find that indices dominated by the largest capitalized companies anticipate negatively perceived events already prior to the actual event, whereas positive events only effect them on the event day or following. In contrast, the FTSE 250, composed of medium-sized companies, tends to
move prior to positively perceived events. Furthermore, we investigate the daily perception of Brexit measured by a metric based on Google Trends. Our results show that perception significantly affects all major UK indices.
Tapiridae Gray 1821
Creators: name: Honacki, James H.
name: Kinman, Kenneth E.
name: Koeppl, James W.
Publisher: name: Zenodo
Year: 1982
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Perissodactyla
Tapiridae

description: Family Tapiridae REVIEWED BY: C. R. Durst (CRD); C. P. Groves (CPG); J. Ramirez-Pulido (JRP). ISIS NUMBER: 5301418002000000000.
description: Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Perissodactyla, pp. 308-311 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on page 310, DOI: 10.5281/zenodo.7353013
Energy-Dependent Light Quenching in CaWO$_4$ Crystals at mK Temperatures
Creators: name: Strauss, R.
name: Angloher, G.
name: Bento, A.
name: Bucci, C.
name: Canonica, L.
name: Carli, W.
name: Ciemniak, C.
name: Erb, A.
name: Feilitzsch, F. v.
name: Gorla, P.
name: Gütlein, A.
name: Hagn, H.
name: Hauff, D.
name: Hellgartner, D.
name: Jochum, J.
name: Kraus, H.
name: Lanfranchi, J. -C.
name: Loebell, J.
name: Münster, A.
name: Petricca, F.
name: Potzel, W.
name: Pröbst, F.
name: Reindl, F.
name: Roth, S.
name: Rottler, K.
name: Sailer, C.
name: Schäffner, K.
name: Schieck, J.
name: Scholl, S.
name: Schönert, S.
name: Seidel, W.
name: Sivers, M. v.
name: Stodolsky, L.
name: Strandhagen, C.
name: Tanzke, A.
name: Uffinger, M.
name: Ulrich, A.
name: Usherov, I.
name: Wawoczny, S.
name: Willers, M.
name: Wüstrich, M.
name: Zöller, A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Scintillating CaWO$_4$ single crystals are a promising multi-element target for rare-event searches and are currently used in the direct Dark Matter experiment CRESST (Cryogenic Rare Event Search with Superconducting Thermometers). The relative light output of different particle interactions in CaWO$_4$ is quantified by Quenching Factors (QFs). These are essential for an active background discrimination and the identification of a possible signal induced by weakly interacting massive particles (WIMPs). We present the first precise measurements of the QFs of O, Ca and W at mK temperatures by irradiating a cryogenic detector with a fast neutron beam. A clear energy dependence of the QF of O and, less pronounced, of Ca was observed for the first time. Furthermore, in CRESST neutron-calibration data a variation of the QFs among different CaWO$_4$ single crystals was found. For typical CRESST detectors the QFs in the region-of-interest (10-40$\,$keV) are $QF_O^{ROI}=(11.2{\pm}0.5)\,$%, $QF_{Ca}^{ROI}=(5.94{\pm}0.49)\,$% and $QF_W^{ROI}=(1.72{\pm}0.21)\,$%. The latest CRESST data (run32) is reanalyzed using these fundamentally new results on light quenching in CaWO$_4$ having moderate influence on the WIMP analysis. Their relevance for future CRESST runs and for the clarification of previously published results of direct Dark Matter experiments is emphasized.
description: 6 pages, 6 figures, 2 tables
Free Energy Landscape and Isomerization Rates of Au$_4$ Clusters at Finite Temperature
Creators: name: Shi, Jiale
name: Huang, Shanghui
name: Gygi, François
name: Whitmer, Jonathan K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: In metallic nanoparticles, the cluster geometric structures control the particle's electronic band structure, polarizability, and catalytic properties. Analyzing the structural properties is a complex problem; the structure of an assembled cluster changes from moment to moment due to thermal fluctuations. Conventional structural analyses based on spectroscopy or diffraction cannot determine the instantaneous structure exactly and can merely provide an averaged structure. Molecular simulations offer an opportunity to examine the assembly and evolution of metallic clusters, as the preferred assemblies and conformations can easily be visualized and explored. Here, we utilize the adaptive biasing force algorithm applied to first principles molecular dynamics to demonstrate exploration of a relatively simple system which permits comprehensive study of the small metal cluster $\ce{Au4}$ in both neutral and charged configurations. Our simulation work offers a quantitative understanding of these clusters' dynamic structure, which is significant for single-site catalytic reactions on metal clusters and provides a starting point for a detailed quantitative understanding of more complex pure metal and alloy clusters' dynamic properties.
description: This work was supported by MICCoM, the Midwest Center for Computational Materials (www.miccom-center.org) s part of the Computational Materials Sciences Program funded by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division