cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Probable Dormant Neutron Star in a Short-Period Binary System
Creators: name: Mazeh, Tsevi
name: Faigler, Simchon
name: Bashi, Dolev
name: Shahaf, Sahar
name: Davidson, Niv
name: Green, Matthew
name: Gomel, Roy
name: Maoz, Dan
name: Sussholz, Amitay
name: Dong, Subo
name: Zhang, Haotong
name: Liu, Jifeng
name: Wang, Song
name: Luo, Ali
name: Zheng, Zheng
name: Hallakoun, Na'ama
name: Perdelwitz, Volker
name: Latham, David W.
name: Ribas, Ignasi
name: Baroch, David
name: Morales, Juan Carlos
name: Nagel, Evangelos
name: Santos, Nuno C.
name: Ciardi, David R.
name: Christiansen, Jessie L.
name: Lund, Michael B.
name: Winn, Joshua N.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We have identified 2XMM J125556.57+565846.4, at a distance of 600 pc, as a binary system consisting of a normal star and a probable dormant neutron star. Optical spectra exhibit a slightly evolved F-type single star, displaying periodic Doppler shifts with a 2.76-day Keplerian circular orbit, with no indication of light from a secondary component. Optical and UV photometry reveal ellipsoidal variations with half the orbital period, due to the tidal deformation of the F star. The mass of the unseen companion is constrained to the range $1.1$--$2.1\,M_{\odot}$ at $3σ$ confidence, with the median of the mass distribution at $1.4\,M_{\odot}$, the typical mass of known neutron stars. A main-sequence star cannot masquerade as the dark companion. The distribution of possible companion masses still allows for the possibility of a very massive white dwarf. The companion itself could also be a close pair consisting of a white dwarf and an M star, or two white dwarfs, although the binary evolution that would lead to such a close triple system is unlikely. Similar ambiguities regarding the certain identification of a dormant neutron star are bound to affect most future discoveries of this type of non-interacting system. If the system indeed contains a dormant neutron star, it will become, in the future, a bright X-ray source and afterwards might even host a millisecond pulsar.
description: 35 pages, 21 figures. accepted for publication in MNRAS
Nyssodrysternum plaumanni Monne 1992
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Nyssodrysternum
Nyssodrysternum plaumanni

description: 24. Nyssodrysternum plaumanni Monné, 1992
Type locality — Brazil, Santa Catarina: Nova Teutonia. (MNRJ). Distribution — Brazil (São Paulo, Santa Catarina).
 Nyssodrysternum plaumanni Monné, 1992: 776, fig. 4; Julio et al., 2000: 43 (holotype).
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553
NPR/PBS NewsHour/Marist Poll: Late April 2019
Creators: name: National Public Radio
name: PBS NewsHour
Publisher: name: Roper Center for Public Opinion Research
Year: 2021

description: President Donald Trump job approval (1); Trump re-election support (1); Robert Mueller report into Russian interference in the 2016 presidential election (8); Attorney General William Barr (2); 2016 presidential election (1); impeachment of President Trump (2)
Is there a nearby microlensing stellar remnant hiding in Gaia DR3 astrometry?
Creators: name: Jabłońska, Maja
name: Wyrzykowski, Łukasz
name: Rybicki, Krzysztof A.
name: Kruszyńska, Katarzyna
name: Kaczmarek, Zofia
name: Penoyre, Zephyr
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Massive galactic lenses with large Einstein Radii should cause a measurable astrometric microlensing effect, i.e. the light centroid shift due to the motion of the two images. Such a shift in the position of a background star due to microlensing was not included in the $Gaia$ astrometric model, therefore significant deviation should cause $Gaia$'s astrometric parameters to be determined incorrectly. Here we studied one of the photometric microlensing events reported in the $Gaia$ DR3, GaiaDR3-ULENS-001, for which poor goodness of $Gaia$ fit and erroneous parallax could indicate the presence of the astrometric microlensing signal. Based on the photometric microlensing model, we simulated $Gaia$ astrometric time-series with the astrometric microlensing effect added. We found that including microlensing with the angular Einstein Radius of $θ_{\rm E}$ = $2.60^{+0.21}_{-0.24}$ mas ($2.47^{+0.28}_{-0.24}$ mas) assuming positive (negative) impact parameter $u_0$ reproduces well the astrometric quantitie reported by $Gaia$. We estimate the mass of the lens to $1.00^{+0.23}_{-0.18}$ $M_\odot$ ($0.70^{+0.17}_{-0.13}$ $M_\odot$) and its distance to $0.90^{+0.14}_{-0.11}$ kpc ($0.69^{+0.13}_{-0.09}$ kpc), proposing the lens could be a nearby isolated white dwarf.
Nyssodrysternum flavolineatum Monne 1985
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Nyssodrysternum
Nyssodrysternum flavolineatum

description: 11. Nyssodrysternum flavolineatum Monné, 1985
Type locality — Brazil, Amazonas: Tabatinga. (MNRJ). Distribution French Guiana, Brazil (Amazonas, Pará).
 Nyssodrysternum flavolineatum Monné, 1985e: 541, fig. 3; Tavakilian et al., 1997: 310 (hosts); Julio et al., 2000: 43 (holotype); Monné, 2001b: 25 (cat. hosts).
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553
On sharp heat kernel estimates in the context of Fourier-Dini expansions
Creators: name: Langowski, Bartosz
name: Nowak, Adam
Publisher: name: arXiv
Year: 2024
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: primary 42C05, secondary 35K08

description: We prove sharp estimates of the heat kernel associated with Fourier-Dini expansions on $(0,1)$ equipped with Lebesgue measure and the Neumann condition imposed on the right endpoint. Then we give several applications of this result including sharp bounds for the corresponding Poisson and potential kernels, sharp mapping properties of the maximal heat semigroup and potential operators and boundary convergence of the Fourier-Dini semigroup.
description: 18 pages
Adaptive Context Network for Scene Parsing
Creators: name: Fu, Jun
name: Liu, Jing
name: Wang, Yuhang
name: Li, Yong
name: Bao, Yongjun
name: Tang, Jinhui
name: Lu, Hanqing
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Recent works attempt to improve scene parsing performance by exploring different levels of contexts, and typically train a well-designed convolutional network to exploit useful contexts across all pixels equally. However, in this paper, we find that the context demands are varying from different pixels or regions in each image. Based on this observation, we propose an Adaptive Context Network (ACNet) to capture the pixel-aware contexts by a competitive fusion of global context and local context according to different per-pixel demands. Specifically, when given a pixel, the global context demand is measured by the similarity between the global feature and its local feature, whose reverse value can be used to measure the local context demand. We model the two demand measurements by the proposed global context module and local context module, respectively, to generate adaptive contextual features. Furthermore, we import multiple such modules to build several adaptive context blocks in different levels of network to obtain a coarse-to-fine result. Finally, comprehensive experimental evaluations demonstrate the effectiveness of the proposed ACNet, and new state-of-the-arts performances are achieved on all four public datasets, i.e. Cityscapes, ADE20K, PASCAL Context, and COCO Stuff.
description: Accepted by ICCV 2019
Towards Time Reversal Symmetry Test with o-Ps Decays using the J-PET detector
Creators: name: Raj, Juhi
name: Dilski, Kamil
name: Czerwinski, Eryk
Publisher: name: arXiv
Year: 2019
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: One of the features of the triplet state of positronium (ortho-Positronium)atoms is its relatively longer lifetime when compared to the singlet states ofpositronium (para-Positronium) atoms. The most probable decay of ortho-Positronium is into three annihilation photons. In order to test the discretesymmetry using the time-reversal symmetry odd-operator, it is importantto identify ortho-Positronium decay. Identification of the decay of ortho-Positronium atoms by measuring the positronium annihilation lifetime withthe Jagiellonian-Positron Emission Tomograph (J-PET) is presented in this article.
Nyssocarinus vittatus Gilmour 1960
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Nyssocarinus
Nyssocarinus vittatus

description: 3. Nyssocarinus vittatus Gilmour, 1960
Type locality — Brazil, Amazonas: Tonantins. (MAGD). Distribution — Ecuador, Brazil (Amazonas).
 Nyssocarinus vittatus Gilmour, 1960a: 52, fig. 3; Monné, 1985c: 305, fig. 1.
  Nyssocuneus Gilmour, 1960
 Nyssocuneus Gilmour, 1960a: 55.
 Type­species — Nyssocuneus heyrovskyi Gilmour, 1960 (monotypy and original designation).
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553
Delay-Controlled Reactions
Creators: name: Trimper, Steffen
name: Zabrocki, Knud
Publisher: name: arXiv
Year: 2003
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: When the entities undergoing a chemical reaction are not available simultaneously, the classical rate equation of a reaction or, alternatively for the evolution of a population, should be extended by including non-Markovian memory effects. We consider the two cases of an external feedback, realized by fixed functions and an internal feedback originated in a self-organized manner by the relevant concentration itself. Whereas in the first case the fixed points are not changed, although the dynamical process is altered, the second case offers a complete new behaviour, characterized by the existence of a time persistent solution. Due to the feedback the reaction may lead to a finite concentration in the stationary limit even in case of a single-species pair annihilation $A + A \to 0$ process. We argue that the different cases are similar to a coupling of additive or multiplicative noises in stochastic processes.
description: 18 pages, 3 figures
Simple precession calculation for Mercury: a linearization approach
Creators: name: Hall, Michael J. W.
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: The additional precession of Mercury due to general relativity can be calculated by a method that is no more difficult than solving for the Newtonian orbit. The method relies on linearizing the relativistic orbit equation, is simpler than standard textbook methods, and is closely related to Newton's theorem on revolving orbits. The main result is accurate to all orders in $\tfrac{1}{c}$ for near-circular orbits.
description: 4 pages, submitted to Am J Phys
Tailoring Hot Exciton Dynamics in 2D Hybrid Perovskites through Cation Modification
Creators: name: Straus, Daniel B.
name: Hurtado-Parra, Sebastian
name: Iotov, Natasha
name: Zhao, Qinghua
name: Gau, Michael R.
name: Carroll, Patrick J.
name: Kikkawa, James M.
name: Kagan, Cherie R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We report a family of two-dimensional hybrid perovskites (2DHPs) based on phenethylammonium lead iodide ((PEA)$_2$PbI$_4$) that show complex structure in their low-temperature excitonic absorption and photoluminescence (PL) spectra as well as hot exciton PL. We replace the 2-position (ortho) H on the phenyl group of the PEA cation with F, Cl, or Br to systematically increase the cation's cross-sectional area and mass and study changes in the excitonic structure. These single atom substitutions substantially change the observable number of and spacing between discrete resonances in the excitonic absorption and PL spectra and drastically increase the amount of hot exciton PL that violates Kasha's rule by over an order of magnitude. To fit the progressively larger cations, the inorganic framework distorts and is strained, reducing the Pb-I-Pb bond angles and increasing the 2DHP band gap. Correlation between the 2DHP structure and steady-state and time-resolved spectra suggests the complex structure of resonances arises from one or two manifolds of states, depending on the 2DHP Pb-I-Pb bond angle (as)symmetry, and the resonances within a manifold are regularly spaced with an energy separation that decreases as the mass of the cation increases. The uniform separation between resonances and the dynamics that show excitons can only relax to the next-lowest state are consistent with a vibronic progression caused by a vibrational mode on the cation. These results demonstrate that simple changes to the structure of the cation can be used to tailor the properties and dynamics of the confined excitons without directly modifying the inorganic framework.
description: 39 pages
On the Nonlinear Dynamical Equation in the p-adic String Theory
Creators: name: Vladimirov, V. S.
name: Volovich, Ya. I.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Numerical Analysis (math.NA)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 45G15; 65R20

description: In this work nonlinear pseudo-differential equations with the infinite number of derivatives are studied. These equations form a new class of equations which initially appeared in p-adic string theory. These equations are of much interest in mathematical physics and its applications in particular in string theory and cosmology. In the present work a systematical mathematical investigation of the properties of these equations is performed. The main theorem of uniqueness in some algebra of tempored distributions is proved. Boundary problems for bounded solutions are studied, the existence of a space-homogenous solution for odd p is proved. For even p it is proved that there is no continuous solutions and it is pointed to the possibility of existence of discontinuous solutions. Multidimensional equation is also considered and its soliton and q-brane solutions are discussed.
description: LaTex, 18 pages
Nyssodrysternum conspicuum Monne 1985
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Nyssodrysternum
Nyssodrysternum conspicuum

description: 5. Nyssodrysternum conspicuum Monné, 1985
Type locality — Brazil, Pará: Tucurui. (MNRJ). Distribution — Venezuela, Surinam, French Guiana, Brazil (Amazonas, Pará).
 Nyssodrysternum conspicuum Monné, 1985e: 538, fig. 1; Julio et al, 2000: 43 (holotype).
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553
МОТИВАЦИЯ И УПРАВЛЕНИЕ ПРОЕКТНЫМИ КОМАНДАМИ: КЛЮЧЕВЫЕ ФАКТОРЫ УСПЕХА
Creators: name: Мансурова, Севара
Publisher: name: Zenodo
Year: 2025

description: В статье рассматриваются вопросы мотивации и управления проектными командами как ключевые факторы успеха в реализации проектов. Проанализированы современные подходы к управлению проектными группами, методы стимулирования персонала и эффективные стратегии повышения мотивации. Особое внимание уделено влиянию лидерства, корпоративной культуры и цифровых технологий на продуктивность команды.
Explicit instruction of persuasive genre writing in the intermediate classroom
Creators: name: Schut, Janice
Publisher: name: The University of British Columbia
Year: 2014

description: In order to understand the function of language in a culture, participants must be knowledgeable about the genres of that culture. Ethnographers have demonstrated that there are discourses which are unique to ethnic, cultural, and socio-economic groups. In order to function effectively within a dominant culture, it is necessary that language learners gain mastery over sanctioned genres. Contemporary educational theory posits that desirable cultural texts can be explicitly and purposefully taught to language learners. This teacher research study sought to examine this theory. Over the course of sixteen lessons, an intermediate class in a school in British Columbia was explicitly taught the characteristics of persuasive genre text. The students were taught the function, organizational framework, and the grammar of persuasive text. Students were assessed prior to the instruction and after the instruction. After the instruction, the performance and perspective of a small sample of students was analyzed to determine if explicit teaching of persuasive genre had produced change in the students' capabilities and attitude in relation to persuasive text. The results of this study generally support the educational theory that text genres can be explicitly and purposefully taught to language learners. This view has significant implications in light of the increasing ethnic, cultural, and linguistic diversity of populations. Text genres can be explicitly taught to students and other societal members so that they may understand and use sanctioned text genres. This knowledge empowers language learners and users to critically and actively participate in their societies.
Nyssodrysternum lepidum Monne 1992
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Nyssodrysternum
Nyssodrysternum lepidum

description: 19. Nyssodrysternum lepidum Monné, 1992
Type locality — Brazil, Santa Catarina: Corupá. (MNRJ). Distribution — Brazil (Santa Catarina, Rio Grande do Sul).
 Nyssodrysternum lepidum Monné, 1992: 773, fig. 1; Julio et al., 2000: 43 (holotype).
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553
Oxide-stabilized microstructure of severe plastically deformed CuCo alloys
Creators: name: Stueckler, Martin
name: Zalesak, Jakub
name: Mueller, Timo
name: Wurster, Stefan
name: Weissitsch, Lukas
name: Meier, Martin
name: Felfer, Peter
name: Gammer, Christoph
name: Pippan, Reinhard
name: Bachmaier, Andrea
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Nanocrystalline materials are well known for their beneficial mechanical and physical properties. However, it is of utmost importance to stabilize the microstructure at elevated temperatures to broaden the window of application e.g. by pinning grain boundaries through impurities or oxides. CuCo alloys, severe plastically deformed using high-pressure torsion, were used to investigate the evolution of oxides upon annealing. These investigations were performed using electron microscopy, synchrotron high-energy X-ray scattering and atom probe tomography. Monitoring the evolution of oxides by in-situ small angle scattering investigations indicates the growth of primary oxides as well as the formation of another species of oxide at elevated temperatures. Slightly different coarsening can be observed in heat-treated samples, which can be traced back to the influence of different oxide amounts. The initially supersaturated CuCo matrix changes by the decomposition process as well as Co- and Cu-based oxides formation and growth. It has been found that the major number of oxides which are present after annealing, can already be found in the starting materials.
Wind accretion in binary stars - I. Mass accretion ratio
Creators: name: Nagae, T.
name: Oka, K.
name: Matsuda, T.
name: Fujiwara, H.
name: Hachisu, I.
name: Boffin, H. M. J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Three-dimensional hydrodynamic calculations are performed in order to investigate mass transfer in a close binary system, in which one component undergoes mass loss through a wind. The mass ratio is assumed to be unity. The radius of the mass-losing star is taken to be about a quarter of the separation between the two stars. Calculations are performed for gases with a ratio of specific heats gamma=1.01 and 5/3. Mass loss is assumed to be thermally driven so that the other parameter is the sound speed of the gas on the mass-losing star. Here, we focus our attention on two features: flow patterns and mass accretion ratio, which we define as the ratio of the mass accretion rate onto the companion to the mass loss rate from the mass-losing primary star. We characterize the flow by the mean normal velocity of wind on the critical Roche surface of the mass-losing star, Vr. When Vr<0.4 A Omega, where A and Omega are the separation between the two stars and the angular orbital frequency of the binary, respectively, we obtain Roche-lobe over-flow (RLOF), while for Vr>0.7 A Omega we observe wind accretion. We find very complex flow patterns in between these two extreme cases. We derive an empirical formula of the mass accretion ratio in the low and in the high velocity regime.
description: 8 pages, accepted for publication in Astronomy and Astrophysics
An Effective Field Theory Treatment of the Production and Annihilation of Magnetic Monopoles and their Relic Abundance
Creators: name: Abreu, Luciano M.
name: Brandão, Pedro C. S.
name: de Montigny, Marc
name: Ouimet, Pierre-Philippe A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We revisit the thermal production red and annihilation of magnetic monopoles and their relic abundance in order to gain a deeper physical interpretation on the monopole phenomenology predicted from the Baines et al. effective field theory, recently proposed in the description of monopole pair production via Drell-Yan and photon fusion processes. In this sense, we red use of the vacuum cross sections for the Drell-Yan reactions derived within the mentioned framework to evaluate the cross section averaged over the thermal distribution associated to other particles that constitute the hot medium where the monopoles propagate. In the considered range of monopole mass with spin-zero and spin-half, our findings suggest that the thermally averaged cross sections for the pair production are highly suppressed, while at higher temperatures those for the annihilation of lighter pairs reach larger magnitudes. Besides, we observe that smaller temperature leads to a rate of annihilation for scalar monopoles smaller than the one for fermionic monopoles, which might be interpreted as a theoretical evidence of a more pronounced stability for spin-0 and heavier monopoles.Then we input these thermally averaged cross sections into the kinetic equation that describes the evolution of the monopole abundance via an extension of a freeze-out theory. Our results infer that heavier monopoles achieve the equilibrium at earlier stages of the expansion, and consequently at higher temperatures. In addition, larger monopole masses produce higher values of the relic abundance. Besides, the results indicate that the abundance does not behave differently for spinless and spin-half relic monopoles.
description: 9 pages, 10 figures
O(10) kinks: clash of symmetries on the brane and the gauge hierarchy problem
Creators: name: Shin, Edward M.
name: Volkas, Raymond R.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study kink or domain wall solutions in O(10) Higgs models in the context of the ``clash of symmetries'' mechanism developed by Davidson, Toner, Volkas and Wali and, independently, by Pogosian and Vachaspati. We show that kink configurations employing Higgs fields in the 45 (the adjoint representation) of O(10) break up into three classes: those that at finite distances from the wall respect a U(5) subgroup of SO(10), and two others that respect the smaller subgroups U(3) x U(2) and U(4) x U(1). These smaller subgroups arise from the clash of symmetries mechanism: they are the intersections of two differently embedded U(5) subgroups of SO(10), the latter being the symmetries respected in asymptotia on opposite sides of the domain wall. The existence of the SO(10) -> U(3) x U(2) = SU(3) x SU(2) x U(1) x U(1)' = G_{SM} x U(1)' class advances the search for a realistic brane world model wherein some of the required symmetry breaking is achieved via the clash of symmetries rather than the conventional mechanism. At the centres of the walls, the unbroken symmetries are enhanced. In the U(3) x U(2) case, the symmetry is O(6) x U(2), which is closely related to the Pati-Salam-like SU(4) x SU(2) x U(1) group. If our universe is a brane located at the centre of such a wall, then we see the O(10) symmetry as being strongly broken to SU(4) x SU(2) x U(1). Interestingly, if the brane-world degrees of freedom enjoy a slight leakage off the wall, then an additional symmetry breakdown to U(3) x U(2) = G_{SM} x U(1)' is effectively induced on the brane. This provides a possible framework within which to address at least part of a gauge hierarchy problem: O(10) is strongly broken to SU(4) x SU(2) x U(1), then more weakly to G_{SM} x U(1)' depending on the amount of leakage off the brane. We also comment on kinks employing the 10 and 54 of O(10).
description: 13 pages, RevTeX, no figures; minor changes; to appear in PRD
title: Farmers’ and Herders’ Perceptions on Rangeland Management in Two Agroecological Zones of Benin
Creators: name: Diogo, Rodrigue Vivien Cao
name: Dossa, Luc Hippolyte
name: Vanvanhossou, Sèyi Fridaïus Ulrich
name: Abdoulaye, Badirou Dine
name: Dosseh, Kossi Hélliot
name: Houinato, Marcel
name: Schlecht, Eva
name: Bürkert, Andreas
Publisher: name: Universität Kassel
Year: 2021
Subjects: subject: communal grazing areas
subject: herder-farmer conflicts
subject: herd mobility
subject: land property rights
subject: rangeland degradation
subject: West Africa
subject: 630
subject: Westafrika
subject: Benin
subject: Weide
subject: Beweidung
subject: Hirt
subject: Landwirt
subject: Transhumanz
subject: Grundeigentum
subject: Degradation

description: Gefördert durch den Publikationsfonds der Universität Kassel
Rolling Tachyon with Electromagnetic Field in Linear Dilaton Background
Creators: name: Nagami, Kenji
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Rolling tachyon in linear dilaton background is examined by using an effective field theory with gauge field on an unstable D-brane in bosonic string theory. Several solutions are identified with tachyon matter equipped with constant electromagnetic field in linear dilaton background. The time evolution of effective coupling and the nature of propagating fluctuation modes around the tachyon matter are also studied.
description: 15 pages, LaTeX 2e; to appear in PLB
Probing the surface environment of large T-type asteroids
Creators: name: Kwon, Yuna G.
name: Hasegawa, Sunao
name: Fornasier, Sonia
name: Ishiguro, Masateru
name: Agarwal, Jessica
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We probed the surface environment of large ($>$80 km in diameter) T-type asteroids, a taxonomic type relatively ill-constrained as an independent group, and discussed their place of origin. We performed spectroscopic observations of two T-type asteroids, (96) Aegle and (570) Kythera, over 2.8--4.0 $μ$m using the Subaru telescope. With other T-types' spectra available in the literature and survey datasets, we strove to find commonalities and global trends in this group. We also utilised the asteroids' polarimetric data and meteorite spectra to constrain their surface texture and composition. Our targets exhibit red $L$-band continuum slopes similar to (1) Ceres and 67P/Churyumov-Gerasimenko, and have an OH-absorption feature with band centres $<$2.8 $μ$m. (96) Aegle hints at a shallow N--H band near 3.1 $μ$m and C--H band of organic materials over 3.4--3.6 $μ$m, whereas no diagnostic bands of water ice and other volatiles exceeding the noise of the data were seen for both asteroids. The large T-type asteroids but (596) Scheila display similar spectral shapes to our targets. $\sim$50 \% of large T-types contain an absorption band near 0.6--0.65 $μ$m likely associated with hydrated minerals. For T-type asteroids (except Jupiter Trojans) of all sizes, we found a weak correlation: the smaller the diameter and the closer the Sun, the redder the visible slope. The 2.9-$μ$m band depths of large T-types suggest that they might have experienced aqueous alteration comparable to Ch-types but more intense than most of the main-belt asteroids. The polarimetric phase curve of the T-types is well described by a particular surface structure and their 0.5--4.0 $μ$m reflectance spectra appear most similar to CI chondrites with grain sizes of $\sim$25--35 $μ$m. Taken as a whole, we propose that large T-type asteroids might be dislodged roughly around 10 au in the early solar system.
description: Accepted for publication in Astronomy & Astrophysics
Three Scale Unfolding Homogenization Method Applied to Cardiac Bidomain Model
Creators: name: Bader, Fakhrielddine
name: Bendahmane, Mostafa
name: Saad, Mazen
name: Talhouk, Raafat
Publisher: name: arXiv
Year: 2022
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: In this paper, we are dealing with a rigorous homogenization result at two different levels for the bidomain model of cardiac electro-physiology. The first level associated with the mesoscopic structure such that the cardiac tissue consists of extracellular and intracellular domains separated by an interface (the sarcolemma). The second one related to the microscopic structure in such a way that the intracellular medium can only be viewed as a periodical layout of unit cells (mitochondria). At the interface between intra-and extracellular media, the fluxes are given by nonlinear functions of ionic and applied currents. A rigorous homogenization process based on unfolding operators is applied to derive the macroscopic (homogenized) model from our meso-microscopic bidomain model. We apply a three-scale unfolding method in the intracellular problem to obtain its homogenized equation at two levels. The first level upscaling of the intracellular structure yields the mesoscopic equation. The second step of the homogenization leads to obtain the intracellular homogenized equation. To prove the convergence of the nonlinear terms, especially those defined on the microscopic interface, we use the boundary unfolding method and a Kolmogorov-Riesz compactness's result. Next, we use the standard unfolding method to homogenize the extracellular problem. Finally, we obtain, at the limit, a reaction-diffusion system on a single domain (the superposition of the intracellular and extracellular media) which contains the homogenized equations depending on three scales. Such a model is widely used for describing the macroscopic behavior of the cardiac tissue, which is recognized to be an important messengers between the cytoplasm (intracellular) and the other extracellular inside the biological cells. Contents 2020 Mathematics Subject Classification. 65N55 and 35A01 and 35B27 and 35K57 and 65M..
description: arXiv admin note: substantial text overlap with arXiv:2201.03412
Finite size effects and localization properties of disordered quantum wires with chiral symmetry
Creators: name: Chiappe, G.
name: Sánchez, M. J.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Finite size effects in the localization properties of disordered quantum wires are analyzed through conductance calculations. Disorder is induced by introducing vacancies at random positions in the wire and thus preserving the chiral symmetry. For quasi one-dimensional geometries and low concentration of vacancies, an exponential decay of the mean conductance with the wire length is obtained even at the center of the energy band. For wide wires, finite size effects cause the conductance to decay following a non-pure exponential law. We propose an analytical formula for the mean conductance that reproduces accurately the numerical data for both geometries. However, when the concentration of vacancies increases above a critical value, a transition towards the suppression of the conductance occurs. This is a signature of the presence of ultra-localized states trapped in finite regions of the sample.
description: 5 figures, revtex4
Nyssodrysternum rubiginosum Monne 1975
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Nyssodrysternum
Nyssodrysternum rubiginosum

description: 31. Nyssodrysternum rubiginosum Monné, 1975
Type locality — Brazil, Paraná: Santa Mariana. (MNRJ). Distribution — Venezuela, Peru, Brazil (Pará, Rondônia, Mato Grosso, Goiás, Bahia to Paraná).
 Nyssodrysternum rubiginosum Monné, 1975b: 246, fig. 1; 1985e: 537; Julio et al., 2000: 43 (holotype).
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553
Mapping the Galactic disk with the LAMOST and Gaia Red clump sample. VI: An evidence for the long lived non-steady warp of non-gravitational scenarios
Creators: name: Wang, H. -F.
name: López-Corredoira, M.
name: Huang, Y.
name: Chang, J.
name: Zhang, H. -W.
name: Carlin, J. L.
name: Chen, X. -D.
name: Chrobáková, Ž.
name: Chen, B. -Q.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: By combining LAMOST DR4 and Gaia DR2 common red clump stars with age and proper motion, we analyze the amplitude evolution of the stellar warp independently of any assumption with a simple model. The greatest height of the warp disk increases with Galactocentric distance in different populations and it is dependent on the age: the younger stellar populations exhibit stronger warp features than the old ones, accompanied with the warp amplitude $γ({\rm age})$ decreasing with age and its first derivative $\dotγ ({\rm age})$ is different from zero. The azimuth of line of nodes $ϕ_w$ is stable at $-$5 degree without clear time evolution, which perfectly confirms some of previous works. All these self-consistent evidences support that our Galactic warp should most likely be a long lived, but non-steady structure and not a transient one, which is supporting the warp is originated from gas infall onto the disk or other hypotheses that suppose that the warp mainly affects to the gas, and consequently younger populations tracing the gas are stronger than the older ones. In other words, the Galactic warp is induced by the non-gravitational interaction over the disk models.
description: 13 pages, 6 figures. Accepted for publication in The Astrophysical Journal
Cross-age peer tutoring in French immersion : students helping students by supporting literacy and early school success
Creators: name: Pollock, Cynthia L.
Publisher: name: The University of British Columbia
Year: 2014

description: The purpose of this paper is to demonstrate how Cross-Age Peer Tutoring can be an effective supplemental educational program to reinforce literacy skills with primary French immersion students struggling in reading. It is a structured and monitored tutoring program that takes place during regular school hours. Three years ago, our French learning Assistance teacher established a Cross-Age Peer Tutoring program. She paired my grade 7 students with students in a primary grade who were in need of extra support in French reading and writing. The focus was on reinforcement of the primary students' French literacy skills. Since then, we have improved our tutoring program, and in this paper I will explain how we used Cross-Age Peer Tutoring in our French Immersion program as an educational tool to support some of our primary students in need of extra practice in literacy. The review of the literature indicates that Peer Tutoring can be a useful supplemental method of instruction to further enhance and support literacy skills in children who need extra reinforcement. Research has shown that peer tutoring programs can increase the use of critical thinking, interpersonal and conflict resolution skills (Gensemer, 2000). Although there are different types of pairings for Peer Tutoring, the concept of Cross-Age Peer Tutoring is an effective program to help develop reading and writing skills in both the older and younger students involved. This one-on-one tutoring helps develop the self-esteem of both the tutor (intermediate student) and the tutee (primary student). This paper will demonstrate that an organized and structured program is emotionally and academically beneficial for both the tutor and tutee, and a positive reinforcement of what is taught in the classroom.
Economics of Controlling Sediment from Irrigation: An Idaho Example
Creators: name: Magleby, Richard
name: Kasal, James
name: Walker, David
name: Gum, Russell
name: Magleby, Richard
name: Kasal, James
name: Walker, David
name: Gum, Russell
Publisher: name: Unknown
Year: 1989
Subjects: subject: Environmental Economics and Policy
subject: Resource /Energy Economics and Policy
subject: Idaho
subject: Rural Clean Water Program
subject: nonpoint pollution control
subject: soil conservation
subject: economic evaluation
subject: benefits and costs
subject: cost-effectiveness

description: The Rock Creek, ID, project of the experimental Rural Clean Water Program may improve recreational fishing and hunting, reduce costs of removing sediment from irrigation ditches, and slightly lower the cost of hydroelectric plant maintenance. The project is also providing cost, tax, and long-term yield benefits to farmers. Total economic benefits, including onfarm benefits, may exceed costs, but water quality benefits alone may not unless substantial additional implementation of conservation tillage occurs among program participants. Conservation tillage is the most costeffective practice, while improved irrigation structures are the least cost effective.
Helicity Basis and Parity
Creators: name: Dvoeglazov, Valeri V.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study the theory of the (1/2,0)+(0,1/2) representation in helicity basis. Helicity eigenstates are not the parity eigenstates. This is in accordance with the consideration of Berestetskii, Lifshitz and Pitaevskii. Relations to the Gelfand-Tsetlin-Sokolik-type quantum field theory are discussed. Finally, a new form of the parity operator is proposed. It commutes with the Hamiltonian.
description: 11pp. ReVTeX file. Presented at the Plebanski Conference ``Topics in Mathematical Physics, General Relativity and Cosmology", September 17-20, 2002, CINVESTAV, D. F., Mexico and the Jornadas de Investigacion UAZ-2002, Zacatecas, Oct. 8-11, 2002
The Decline of UNASUR and the Crisis of South American Regionalism
Creators: name: Sánchez, Fabio
Publisher: name: figshare
Year: 2020
Subjects: subject: 160607 International Relations
subject: FOS: Political science

description: “Back upon a time,” on December 14, 2011, then Colombian Foreign Minister María Ángela Holguín delivered the instrument of ratification of the UNASUR Constitutive Treaty to the General Secretariat of this organization in Quito. That same day she declared that "we are among the most committed in this process of integration, in which we firmly believe". Undoubtedly, these were different times for South American politics in general and the Colombian agenda in particular. Who would have thought that seven years later the newly inaugurated President of Colombia, Ivan Duque Márquez and his Foreign Minister, Carlos Holmes Trujillo, would announce the irreversible withdrawal of Colombia from the organization? This decision, formally announced on August 28, 2018 (with a statutory six months’ notice) is one more sign of the decline of this organization, which has had no General Secretary since 2017 and has already lost seven of its original twelve members – Colombia, the five other countries that simultaneously suspended their participation on April 20, 2018 (Argentina, Brazil, Chile, Paraguay and Peru) and Ecuador, which formally withdrew on 13 March 2019. This leaves Bolivia, Guyana, Suriname, Uruguay and Venezuela as active members – for now. The foregoing indicates that we are entering a new phase in the evolution of South American foreign policy, which seems to be returning to the classic multilateralism led by the United States and represented by the Organization of American States (OAS), or Organización de Estados Americanos (OEA) in Spanish. The collective defection of more than half of UNASUR’s membership signals the start of the deconstruction process of South America as a geo-political bloc and an important actor on the global international arena.
ANALISIS KEBIJAKAN PEMENUHAN PASAR KERJA TENAGA KESEHATAN DI TINGKAT GLOBAL
Creators: name: Kurniati, Anna
name: Astari, Lita Dwi
name: Efendi, Ferry
name: Haryanto, Joni
name: Retno Indarwati
name: Has, Eka Mishbahatul Mar'ah
name: Ulfiana, Elida
name: Ias Tarina Puspitasari
name: Muryani, Made
name: Heni Dianawatisari
name: Ifrani Yuan Khaulaha Rani
Publisher: name: figshare
Year: 2021
Subjects: subject: Health Care
subject: 119999 Medical and Health Sciences not elsewhere classified
subject: FOS: Other medical sciences

description: Pendidikan dan PelatihanPada tahun 2019 di Indonesia tercatat jumlah institusi pendidikankeperawatan sebanyak 534 institusi. Secara keseluruhan terdapat 1.058program pendidikan keperawatan di Indonesia yang terdiri dari D3sebanyak 413 program studi, D4/S1 sebanyak 342 program studi danprofesi sebanyak 280 program studi, sisanya sebanyak 23 adalah programstudi S2 keatas. Kurikulum pendidikan dan pelatihan sudah diperbarui olehkementerian terkait dan berbagai asosiasi pendidikan baik vokasi ataupunners. Kurikulum tersebut mengacu dan selaras dengan regulasi yang ada,diantaranya adalah kompetensi inti Association of Southeast Asian Nations(ASEAN) serta kebutuhan stakeholder yang telah diimplementasikan kemahasiswa keperawatan di Indonesia.
CFD simulations of turbulent dust dispersion in the 20 L vessel using OpenFOAM
Creators: name: Islas, Alain
name: Fernández, Andrés Rodróguez
name: Betegón, Covadonga
name: Martínez-Pañeda, Emilio
name: Pandal, Adrián
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Numerical Analysis (math.NA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Dust explosions are among the most hazardous accidents affecting industrial facilities processing particulate solids. Describing the severity parameters of dust clouds is critical to the safety management and risk assessment of dust explosions. These parameters are determined experimentally in a 20L spherical vessel, following the ASTM E1226 or UNE 14034 standards. Since their reproducibility depends on the levels of turbulence associated with the dust cloud, a computational model of the multi-phase (gas-solid) flow is used to simulate the dispersion process with the open-source CFD code OpenFOAM. The model is successfully validated against experimental measurements from the literature and numerical results of a commercial CFD code. In addition, this study considers the impact of particle size on the turbulence of the carrier phase, suggesting that particles attenuate its turbulence intensity. Moreover, the model predicts well the formation of a two-vortex flow pattern, which has a negative impact on the distribution of the particle-laden flows with d<=100 um, as most of the particles concentrate at the near-wall region. Contrarily, an improved homogeneity of dust cloud is observed for a case fed with larger particles (d=200 um), as the increased inertia of these particles allows them to enter into the re-circulation regions.
PND-Net: Plant Nutrition Deficiency and Disease Classification using Graph Convolutional Network
Creators: name: Bera, Asish
name: Bhattacharjee, Debotosh
name: Krejcar, Ondrej
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Crop yield production could be enhanced for agricultural growth if various plant nutrition deficiencies, and diseases are identified and detected at early stages. The deep learning methods have proven its superior performances in the automated detection of plant diseases and nutrition deficiencies from visual symptoms in leaves. This article proposes a new deep learning method for plant nutrition deficiencies and disease classification using a graph convolutional network (GNN), added upon a base convolutional neural network (CNN). Sometimes, a global feature descriptor might fail to capture the vital region of a diseased leaf, which causes inaccurate classification of disease. To address this issue, regional feature learning is crucial for a holistic feature aggregation. In this work, region-based feature summarization at multi-scales is explored using spatial pyramidal pooling for discriminative feature representation. A GCN is developed to capacitate learning of finer details for classifying plant diseases and insufficiency of nutrients. The proposed method, called Plant Nutrition Deficiency and Disease Network (PND-Net), is evaluated on two public datasets for nutrition deficiency, and two for disease classification using four CNNs. The best classification performances are: (a) 90.00% Banana and 90.54% Coffee nutrition deficiency; and (b) 96.18% Potato diseases and 84.30% on PlantDoc datasets using Xception backbone. Furthermore, additional experiments have been carried out for generalization, and the proposed method has achieved state-of-the-art performances on two public datasets, namely the Breast Cancer Histopathology Image Classification (BreakHis 40X: 95.50%, and BreakHis 100X: 96.79% accuracy) and Single cells in Pap smear images for cervical cancer classification (SIPaKMeD: 99.18% accuracy). Also, PND-Net achieves improved performances using five-fold cross validation.