cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Conditional and biconditional reasoning : a developmental study using new norms
Creators: name: Taylor, John Robert
Publisher: name: University of British Columbia
Year: 2010

description: The present study attempted to answer the question of the extent to which idiosyncratic interpretations of premises affected performance on syllogistic reasoning tasks. A model was developed which accounted for both linguistic factors and logical factors. The constructs in the model were incorporated into a new set of norms for syllogistic reasoning. Two tests were developed for this study. The Referential Test measured interpretations of given logical expressions using physical referents. The Syllogism Test contained standard syllogisms in which a specific logical expression was embedded as the first premise of each syllogism. One version of each of these two tests was constructed for each of four logical expressions. One logical expression was a conditional proposition, and the other three were syntactically different biconditional propositions. One version of each test was administered to 916 students in Grades 6, 8, 10 and 12, one proposition for each student. The criterion measures for the Referential Tests revealed (a) many different interpretations of the same proposition, and (b) clear differences among all four propositions. Developmental trends were unclear. The criterion measures for the Syllogism Tests revealed (a) clear developmental trends for the ability to reason consistently, independent of apparent interpretations of premises, and (b) some differences and some similarities among the four propositions, almost all of which contravened norms of formal logic. Intrasubject comparisons between Syllogism Tests and Referential Tests (using the same logical proposition for each student), demonstrated that for almost all students, syllogistic reasoning was governed by both the interpretation of the first premise and the ability to generate that interpretation rather than a truncated version. These comparisons also suggested that some apparently regressive behaviour of Grade 12 students could be attributed to developmental changes in meanings of logical propositions which were not accompanied by corresponding changes in reasoning strategies. Implications were discussed for natural language, mathematics education, and research in logical reasoning (and hence critical thinking), concept formation rule learning, and Formal Operations. Particular attention was given to formal logic and Formal Operations as competence models.
Parchment to Touchscreen: Landscape Journey and Experience for 21st Century Learning
Creators: name: Silverstein, Joshua Yoshi
Publisher: name: Digital Repository at the University of Maryland
Year: 2014
Subjects: subject: Landscape architecture
subject: Environmental education
subject: Curriculum development
subject: experiential education
subject: Jewish education
subject: Living Torah
subject: outdoor education
subject: Place-based Education
subject: Torah of place

description: Experiences of landscape journey are informed and mitigated by modalities of place-based practices. Historically, documentation and transmission of landscape knowledge was limited to narratives of those with power and influence. Today, the democratization of power and decentralization of knowledge, particularly as affected by technology, are projected to affect powerful changes for our future.

This project creates innovation in place-based learning through an interdisciplinary approach combining landscape design for outdoor learning environments with collaborative curriculum development. Educators from Gesher Jewish Day School in Fairfax, VA were involved in this collaboration that has yielded an exciting, fresh approach to engaging student relationships to landscape. Students connect to narratives of landscape journey and experience in Jewish tradition while engaging in guided personal explorations of place. In the process, new wisdom, the "Torah of Place," is generated, documented and transmitted through both traditional sense-of-place activities and pedagogies integrating modern mobile technology such as smartphones and tablets.
INGLIZ TILIDA TAQLID SO'ZLARNING SEMANTIK TASNIFI
Creators: name: Moxidil Sharipova   Qo'qon davlat pedagogika instituti  1-bosqich tayanch doktoranti
Publisher: name: Zenodo
Year: 2023

description: Tabiatda cheksiz ko'p tovushlar mavjud, ammo alifbodagi cheklangan  harflar yordamida ushbu tovushlarning barchasini ifodalash har qanday tilda qiyinchilik tug’diradii. Ayniqsa bugungi kunda yanada globallashuv zamonida  ingliz tilini o'rganuvchilar orasida onomatopeya fenomenini tan olish, tushunish va izohlashda bir qancha qiyinchiliklar mavjud.  Onomatopoeik so'zlar tilning kelib chiqishi bilan bog'liq  hodisa bo’lib tovushga taqlid nazariyasining muhim qismi sifatida talqin etiladi.. Darhaqiqat, onomatopoeik so’zlarni mustaqil obyekt sifatida o'rganish XX asrning so'nggi o'n yilligida boshlangan va hozirgacha tilshunoslikning dolzarb masalalridan biri bo’lib qolmoqda..
Engineering Local Electricity Markets for Residential Communities
Creators: name: Mengelkamp, Esther Marie
Publisher: name: Karlsruhe
Year: 2019
Subjects: local electricity market
local energy market
reinforcement learning
bi-level optimization
business model
SGAM

description: In line with the progressing decentralization of electricity generation, local electricity markets (LEMs) support electricity end customers in becoming active market participants instead of passive price takers. They provide a market platform for trading locally generated (renewable) electricity between residential agents (consumers, prosumers, and producers) within their community. 

Based on a structured literature review, a market engineering framework for LEMs is developed. The work focuses on two of the framework's eight components, namely the agent behavior and the (micro) market structure. Residential agent behavior is evaluated in two steps. Firstly, two empirical studies, a structural equation model-based survey with 195 respondents and an adaptive choice-based conjoint study with 656 respondents, are developed, conducted and evaluated. Secondly, a discount price LEM is designed following the surveys' results. Theoretical solutions of the LEM bi-level optimization problem with complete information and heuristic reinforcement learning with incomplete information are investigated in a multi-agent simulation to find the profit-maximizing market allocations. 

The (micro) market structure is investigated with regards to LEM business models, information systems and real-world application projects. Potential business models and their characteristics are combined in a taxonomy based on the results of 14 expert interviews. Then, the Smart Grid Architecture Model is utilized to derive the organizational, informational, and technical requirements for centralized and distributed information systems in LEMs. After providing an overview on current LEM implementations projects in Germany, the Landau Microgrid Project is used as an example to test the derived requirements. 

In conclusion, the work recommends current LEM projects to focus on overall discount electricity trading. Premium priced local electricity should be offered to subgroups of households with individual higher valuations for local generation. Automated self-learning algorithms are needed to mitigate the trading effort for residential LEM agents in order to ensure participation. The utilization of regulatory niches is suggested until specific regulations for LEMs are established. Further, the development of specific business models for LEMs should become a prospective (research) focus.
Erdos-Renyi random graphs + forest fires = self-organized criticality
Creators: name: Rath, Balazs
name: Toth, Balint
Publisher: name: arXiv
Year: 2008
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We modify the usual Erdos-Renyi random graph evolution by letting connected clusters 'burn down' (i.e. fall apart to disconnected single sites) due to a Poisson flow of lightnings. In a range of the intensity of rate of lightnings the system sticks to a permanent critical state.
description: Version 3, dated 18 May 2009, final version, revised after referees' reports
Parton showers from the dipole formalism
Creators: name: Dinsdale, Michael
name: Ternick, Marko
name: Weinzierl, Stefan
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present an implementation of a parton shower algorithm for hadron colliders and electron-positron colliders based on the dipole factorisation formulae. The algorithm treats initial-state partons on equal footing with final-state partons. We implemented the algorithm for massless and massive partons.
description: 33 pages, version to be published
Simultaneous X-ray and radio observations of the transitional millisecond pulsar candidate CXOU J110926.4-650224. The discovery of a variable radio counterpart
Creators: name: Zelati, F. Coti
name: Hugo, B.
name: Torres, D. F.
name: de Martino, D.
name: Papitto, A.
name: Buckley, D. A. H.
name: Russell, T. D.
name: Campana, S.
name: Van Rooyen, R.
name: Bozzo, E.
name: Ferrigno, C.
name: Li, J.
name: Migliari, S.
name: Monageng, I.
name: Rea, N.
name: Serylak, M.
name: Stappers, B. W.
name: Titus, N.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present the results of simultaneous observations of the transitional millisecond pulsar (tMSP) candidate CXOU J110926.4-650224 with the XMM-Newton satellite and the MeerKAT telescope. The source was found at an average X-ray luminosity of $L_{\rm X}\simeq7\times10^{33}$ erg s$^{-1}$ over the 0.3-10 keV band (assuming a distance of 4 kpc) and displayed a peculiar variability pattern in the X-ray emission, switching between high, low and flaring modes on timescales of tens of seconds. A radio counterpart was detected at a significance of 7.9$σ$ with an average flux density of $\simeq$33$μ$Jy at 1.28 GHz. It showed variability over the course of hours and emitted a $\simeq$10-min long flare just a few minutes after a brief sequence of multiple X-ray flares. No clear evidence for a significant correlated or anticorrelated variability pattern was found between the X-ray and radio emissions over timescales of tens of minutes and longer. CXOU J110926.4-650224 was undetected at higher radio frequencies in subsequent observations performed with the Australia Telescope Compact Array, when the source was still in the same X-ray sub-luminous state observed before, down to a flux density upper limit of 15$μ$Jy at 7.25 GHz (at 3$σ$). We compare the radio emission properties of CXOU J110926.4-650224 with those observed in known and candidate tMSPs and discuss physical scenarios that may account for its persistent and flaring radio emissions.
description: 10 pages, 4 figures. Accepted for publication on A&A
Slow dynamics in a model of the cellulose network
Creators: name: Manyuhina, O. V.
name: Fasolino, A.
name: Katsnelson, M. I.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We present numerical simulations of a model of cellulose consisting of long stiff rods, representing cellulose microfibrils, connected by stretchable crosslinks, representing xyloglucan molecules, hydrogen bonded to the microfibrils. Within a broad range of temperature the competing interactions in the resulting network give rise to a slow glassy dynamics. In particular, the structural relaxation described by orientational correlation functions shows a logarithmic time dependence. The glassy dynamics is found to be due to the frustration introduced by the network of xyloglucan molecules. Weakening of interactions between rod and xyloglucan molecules results in a more marked reorientation of cellulose microfibrils, suggesting a possible mechanism to modify the dynamics of the plant cell wall.
description: 13 pages, 7 figures, accepted in Polymer
Electron Capture Strength for {60,62}Ni and {58,60,62,64}Ni(p,n){58,60,62,64}Cu reactions at 134.3 MeV
Creators: name: Anantaraman, N.
name: Austin, Sam M.
name: Brown, B. A.
name: Crawley, G. M.
name: Galonsky, A.
name: Zegers, R. G. T.
name: Anderson, B. D.
name: Baldwin, A. R.
name: Flanders, B. S.
name: Madey, R.
name: Watson, J. W.
name: Foster, C. C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Background: The strength of electron capture for medium mass nuclei has a significant effect on the evolution of supernovae. There is insufficient knowledge of these strengths and very little data for important radioactive nuclei. Purpose: Determine whether it is feasible to obtain EC strength from studies of T_o+1 excitations in (p,n) reactions, and whether this might yield information for radioactive nuclei. Methods: Cross sections for the {58,60,62,64}Ni(p,n){58,60,62,64}Cu reactions were measured over the angular range of 0.3 deg to 11.6 deg at 134.3 MeV using the IUCF neutron time-of-flight facility. esults: The T_o+1 excitations in {60,62}Ni were identified by comparison with inelastic proton scattering spectra, their B(GT) were extracted, and the corresponding electron capture rates in supernovae were calculated. Data from the TRIUMF (n,p) experiments at 198 MeV were reanalyzed; the electron capture rates for the reanalyzed data are in moderately good agreement with the higher resolution (p,n) results, but differ in detail. The possibility of future measurements with radioactive nuclei was considered. Conclusions: It is possible to determine electron capturestrength from (p,n) experiments. This approach may make it possible to obtain electron capture strength for radioactive nuclei by studying (p,n) reactions in inverse kinematics.
description: Submitted to Physical Review C
Changes in the near-surface shear layer of the Sun
Creators: name: Antia, H. M.
name: Basu, Sarbani
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We use helioseismic data obtained over two solar cycles to determine whether there are changes in the near-surface shear layer (NSSL). We examine this by determining the radial gradient of the solar rotation rate. The radial gradient itself shows a solar-cycle dependence, and the changes are more pronounced in the active latitudes than at adjoining higher latitudes; results at the highest latitudes (greater than about70 degrees) are unreliable. The pattern changes with depth, even within the NSSL. We find that the near-surface shear layer is deeper at lower latitudes than at high latitudes and that the extent of the layer also shows a small solar-cycle related change.
description: Accepted for publication in ApJ
A parton shower algorithm based on Catani-Seymour dipole factorisation
Creators: name: Schumann, Steffen
name: Krauss, Frank
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this publication the implementation of a new parton shower model based on the Catani-Seymour dipole factorisation, as first suggested by Z. Nagy and D. E. Soper, is discussed. First results obtained with the new algorithm are compared with experimental data.
description: 59 pages, 21 figures
Silent Tracker: In-band Beam Management for Soft Handover for mm-Wave Networks
Creators: name: Ganji, Santosh
name: Lin, Tzu-Hsiang
name: Kim, Jaewon
name: Kumar, P. R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Systems and Control (eess.SY)
subject: Networking and Internet Architecture (cs.NI)
subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: In mm-wave networks, cell sizes are small due to high path and penetration losses. Mobiles need to frequently switch softly from one cell to another to preserve network connections and context. Each soft handover involves the mobile performing directional neighbor cell search, tracking cell beam, completing cell access request, and finally, context switching. The mobile must independently discover cell beams, derive timing information, and maintain beam alignment throughout the process to avoid packet loss and hard handover. We propose Silent tracker which enables a mobile to reliably manage handover events by maintaining an aligned beam until the successful handover completion. It is entirely in-band beam mechanism that does not need any side information. Experimental evaluations show that Silent Tracker maintains the mobile's receive beam aligned to the potential target base station's transmit beam till the successful conclusion of handover in three mobility scenarios: human walk, device rotation, and 20 mph vehicular speed.
Study of exclusive processes e^+ e^- \to VP
Creators: name: Braguta, V. V.
name: Likhoded, A. K.
name: Luchinsky, A. V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: This paper is devoted to consideration of the hard exclusive processes $e^+e^- \to VP$, where $V=ρ,ϕ; P=η,η'$. Experimental measurement of the cross section of the process $e^+ e^- \to ϕη$ at BaBar collaboration at large center mass energy $\sqrt s=10.6$ GeV and some low energy experimental data $\sqrt s \sim 2-4$ GeV give us the possibility to study the cross section in the broad energy region. As the result, we have determined the asymptotic behavior of the cross section of $e^+ e^- \to ϕη$ in the limit $s \to \infty$, which is in agreement with perturbative QCD prediction. Assuming that the same asymptotic behavior is valid for the other processes under consideration and using low energy experimental data we have predicted the cross sections of these processes at energies $\sqrt s=3.67,~10.6$ GeV. In addition, we have calculated the cross sections of these processes at the same energies within perturbative QCD. Our results are in agreement with available experimental data.
description: 10 pages, 2 tables, 6 figures; minor changes; article accepted to publication is Phys. Rev. D
Analytic evidence for the Gubser-Mitra conjecture
Creators: name: Miyamoto, Umpei
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A simple master equation for the static perturbation of charged black strings is derived while employing the gauge proposed by Kol. As the charge is varied it is found that the potential in the master equation for the perturbations becomes positive exactly when the specific heat turns positive thus forbidding a bound state and the onset of the Gregory-Laflamme instability. It can safely be said that this is the first analytic and explicit evidence for the Gubser-Mitra conjecture, correlating the classical and thermodynamic instabilities of black branes. Possible generalizations of the analysis are also discussed.
description: 9 pages, 2 figures, typos fixed, to appear in Phys. Lett. B
Managing Knowledge Standards at the Periphery of Professional Knowledge Development: The Case of the Philippine Accountancy Profession and International Accounting Standards Harmonisation
Creators: name: Rafael, Erwin
Publisher: name: Cambio. Rivista sulle Trasformazioni Sociali
Year: 2019

description: This article is a case study of how a peripheral professional group, the Philippine accountancy profession, managed its knowledge standards to strengthen its occupational authority despite lack of control on standards development. It focuses on explaining the decision to harmonise the Philippine Generally Accepted Accounting Principles (GAAP) with the International Accounting Standards (IAS), which overturned postcolonial dependence on the US GAAP as a model for standards development. The harmonisation of the Philippine GAAP with the IAS is the outcome of a complex mix of structural changes in the core of the accounting standards development field, resource constraints on domestic accounting standard-setters, and the local professional group’s efforts to advance its professional project. Local conditions that favour adoption of a model and the active pursuit of occupational authority by local actors are just as crucial as pressures from the external global environment in decisions leading to harmonisation with international standards.
description: Cambio. Rivista sulle Trasformazioni Sociali, Vol. 8 No. 16 (2018): Varieties of Professionalism in a Globalising World: New Theoretical Perspectives and Analytical Approaches
Socio-Professional Integration and International Mobility: The Case of French Engineers Under the France-Quebec Mutual Recognition Arrangements
Creators: name: Bédard, Jean-Luc
name: Massana, Marta
Publisher: name: Cambio. Rivista sulle Trasformazioni Sociali
Year: 2019

description: This article examines the dynamics of admission into the professional practice of French-trained engineers into Quebec’s professional system. It also looks at the socio-professional integration of these engineers who have sought admission through the France-Quebec MRA since it went into effect on July 18, 2013. Therefore, we consider not only conditions of admission in the professional system, but also factors facilitating or impeding their socio-professional integration, and the impact of these factors on the entry into professional practice. This article also considers the roles of some stakeholders involved in the MRA process and the dynamics among them, as well as the effectiveness of policies that regulate immigration and the labour market, looking at the socio-professional integration as a multi-faceted process that brings together actors mainly from immigration, the professional system, the training establishments and the employers themselves. By analysing these professionals’ trajectories, we also look at the impact of institutional disjunctions, with the aim of identifying solutions towards a more efficient integration of these foreign-trained professionals (FTPs). Our methodological protocol involved a case study approach (Creswell 2007) combining semi-structured interviews, participant observation, informal meetings with some stakeholders and documentary analysis about professional systems, focusing on the dynamics between regulation of professions and the socio-professional integration of FTPs in this context.
description: Cambio. Rivista sulle Trasformazioni Sociali, Vol. 8 No. 16 (2018): Varieties of Professionalism in a Globalising World: New Theoretical Perspectives and Analytical Approaches
Non-chiral spin frustration versus highly degenerate ferromagnetic state with local chiral degrees of freedom of an exactly solvable spin-electron planar model of inter-connected trigonal bipyramids
Creators: name: Gálisová, Lucia
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The frustration phenomenon in an exactly solvable spin-electron planar model constituted by identical bipyramidal plaquettes is discussed within the Toulouse's and dos Santos and Lyra's frustration concepts. It is shown that the ground state of the model contains the unfrustrated spontaneously ordered quantum ferromagnetic phase with local chiral degrees of freedom in the electron sub-lattice and the disordered quantum one, where both the Ising and electron sub-lattices are frustrated. The frustration of the latter sub-lattice persists at finite temperatures, but only in the disordered region. It finally vanishes at a certain frustration temperature. The reentrant behaviour of the frustration in the electron sub-lattice with three consecutive frustration temperatures due to a competition with the unfrustrated ferromagnetic spin arrangement near the ground-state phase transition can also be observed.
description: 4 pages, 4 figures
On the Spectrum of geometric operators on Kähler manifolds
Creators: name: Jakobson, Dmitry
name: Strohmaier, Alexander
name: Zelditch, Steve
Publisher: name: arXiv
Year: 2008
Subjects: subject: Differential Geometry (math.DG)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 81Q50

description: On a compact Kähler manifold there is a canonical action of a Lie-superalgebra on the space of differential forms. It is generated by the differentials, the Lefschetz operator and the adjoints of these operators. We determine the asymptotic distribution of irreducible representations of this Lie-superalgebra on the eigenspaces of the Laplace-Beltrami operator. Because of the high degree of symmetry the Laplace-Beltrami operator on forms can not be quantum ergodic. We show that after taking these symmetries into account quantum ergodicity holds for the Laplace-Beltrami operator and for the Spin^c-Dirac operators if the unitary frame flow is ergodic. The assumptions for our theorem are known to be satisfied for instance for negatively curved Kähler manifolds of odd complex dimension.
description: 19 pages, 1 figure, uses dcpic.sty
МЕТОД РАЦИОНАЛЬНОГО ИСПОЛЬЗОВАНИЯ ПРИРОДНЫХ РЕСУРСОВ В ПРОИЗВОДСТВЕ СТРОИТЕЛЬНЫХ МАТЕРИАЛОВ
Creators: name: Сообщество рецензентов Международного научно-исследовательского журнала
Publisher: name: ООО Цифра
Year: 2023
Subjects: waste
construction material
ecology
cement
chemical additives
отходы
строительный материал
экология
цемент
химические добавки

description: Journal of Agriculture and Environment, Выпуск 12 (40) 2023
The Maskit embedding of the twice punctured torus
Creators: name: Series, Caroline
Publisher: name: arXiv
Year: 2008
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 30F40 (Primary) 30F60, 57M50 (Secondary)

description: The Maskit embedding M of a surface Σis the space of geometrically finite groups on the boundary of quasifuchsian space for which the `top' end is homeomorphic to Σ, while the `bottom' end consists of two triply punctured spheres, the remains of Σwhen two fixed disjoint curves have been pinched. As such representations vary in the character variety, the conformal structure on the top side varies over the Teichmüller space T(Σ). We investigate M when Σis a twice punctured torus, using the method of pleating rays. Fix a projective measure class [μ] supported on closed curves on Σ. The pleating ray P_[μ] consists of those groups in M for which the bending measure of the top component of the convex hull boundary of the associated 3-manifold is in [μ]. It is known that P is a real 1-submanifold of M. Our main result is a formula for the asymptotic direction of P in M as the bending measure tends to zero, in terms of natural parameters for the 2-complex dimensional representation space R and the Dehn-Thurston coordinates of the support curves to [μ] relative to the pinched curves on the bottom side. This leads to a method of locating M in R.
description: pdflatex, 45 pages, 9 figures
Ab initio statistical mechanics of surface adsorption and desorption: I. H$_2$O on MgO (001) at low coverage
Creators: name: Alfe`, D.
name: Gillan, M. J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a general computational scheme based on molecular dynamics (m.d.) simulation for calculating the chemical potential of adsorbed molecules in thermal equilibrium on the surface of a material. The scheme is based on the calculation of the mean force in m.d. simulations in which the height of a chosen molecule above the surface is constrained, and subsequent integration of the mean force to obtain the potential of mean force and hence the chemical potential. The scheme is valid at any coverage and temperature, so that in principle it allows the calculation of the chemical potential as a function of coverage and temperature. It avoids all statistical mechanical approximations, except for the use of classical statistical mechanics for the nuclei, and assumes nothing in advance about the adsorption sites. From the chemical potential, the absolute desorption rate of the molecules can be computed, provided the equilibration rate on the surface is faster than the desorption rate. We apply the theory by {\em ab initio} m.d. simulation to the case of H$_2$O on MgO (001) in the low-coverage limit, using the Perdew-Burke-Ernzerhof (PBE) form of exchange-correlation. The calculations yield an {\em ab initio} value of the Polanyi-Wigner frequency prefactor, which is more than two orders of magnitude greater than the value of $10^{13}$ s$^{-1}$ often assumed in the past. Provisional comparison with experiment suggests that the PBE adsorption energy may be too low, but the extension of the calculations to higher coverages is needed before firm conclusions can be drawn. The possibility of including quantum nuclear effects by using path-integral simulations is noted.
description: 11 pages + 10 figures
Four-lepton LHC events from MSSM Higgs boson decays into neutralino and chargino pairs
Creators: name: Bisset, Mike
name: Li, Jun
name: Kersting, Nick
name: Lu, Ran
name: Moortgat, Filip
name: Moretti, Stefano
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Heavy neutral Higgs boson production and decay into neutralino and chargino pairs is studied at the Large Hadron Collider in the context of the Minimal Supersymmetric Standard Model. Higgs boson decays into the heavier neutralino and chargino states, i.e., H^0 or A^0 to tilde{chi}_i^0 tilde{chi}_j^0 (i,j = 2,3,4) as well as H^0 or A^0 to tilde{chi}_1^{pm} tilde{chi}_2^{mp}, tilde{chi}_2^+ tilde{chi}_2^- (all leading to four-lepton plus missing transverse energy final states), is found to improve the possibilities of discovering such Higgs states beyond those previously identified by considering H^0 or A^0 to tilde{chi}_2^0 tilde{chi}_2^0 decays only. In particular, H^0,A^0 bosons with quite heavy masses, approaching ~800 GeV in the so-called `decoupling region' where no clear SM signatures for the heavier MSSM Higgs bosons are known to exist, can now be discerned, for suitable but not particularly restrictive configurations of the low energy supersymmetric parameters. The high M_A discovery reach for the H^0 and A^0 may thus be greatly extended. Full event-generator level simulations, including realistic detector effects and analyses of all significant backgrounds, are performed to delineate the potential H^0,A^0 discovery regions. The wedgebox plot technique is also utilized to further analyze the 4l plus missing transverse energy signal and background events. This study marks the first thorough and reasonably complete analysis of this important class of MSSM Higgs boson signature modes. In fact, this is the first time discovery regions including all possible neutralino and chargino decay modes of the Higgs bosons have ever been mapped out.
description: 43 pages, 12 figures
High-Energy Neutrino Production in Clusters of Galaxies
Creators: name: Hussain, Saqib
name: Batista, Rafael Alves
name: Pino, Elisabete de Gouveia Dal
name: Dolag, Klaus
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In this work, we compute the contribution from clusters of galaxies to the diffuse neutrino background. Clusters of galaxies can potentially produce cosmic rays (CRs) up to very-high energies via large-scale shocks and turbulent acceleration. Due to their unique magnetic-field configuration, CRs with energy $\leq 10^{17}$ eV can be trapped within these structures over cosmological time scales, and generate secondary particles, including neutrinos and gamma rays, through interactions with the background gas and photons. We employ three-dimensional cosmological magnetohydrodynamical simulations of structure formation to model the turbulent intergalactic medium. We use the distribution of clusters within this cosmological volume to extract the properties of this population. We propagate CRs in this environment using multi-dimensional Monte Carlo simulations across different redshifts (from $z \sim 5 \; \text{to} \; z =0$), considering all relevant photohadronic, photonuclear, and hadronuclear interactions. We also include the cosmological evolution of the CR sources. We find that, for CRs injected with a spectral index $1.5 - 2.7$ and cutoff energy $E_{max} = 10^{16} - 10^{17}$ eV, clusters contribute to a substantial fraction to the diffuse flux observed by the IceCube Neutrino Observatory, and most of the contribution comes from clusters with $M > 10^{14} \; M_{\odot}$ and redshift $z < 0.3$.
description: 8 pages. arXiv admin note: text overlap with arXiv:2101.07702
La ceremonie hamatsa des Kwagul approche structuraliste des rapports mythe-rituel
Creators: name: Reid, Martine Jeanne
Publisher: name: University of British Columbia
Year: 2010

description: Cet ouvrage examina une cérémonie particulière aux Kwagul de Colombie Britannique: le rituel d'initiation hamatsa. Basée sur une recherche effectuée en pays kwagul et enrichie de nombreuses données ethnographiques, la thèse s'appuie au niveau théorique : sur des travaux récents de Lévi-Strauss et de Turner. Afin d'atteindre la structure du rituel per se, nous, l'expurgeons de ses gloses et exégèses. Ses mythologies implicite, et explicite sont analysées. La première réfère à la vision du monde kwagul et à son ethos. L'éthos kwagul est constitué d'un ensemble de thèmes rituels qui tous relèvent du principe de transformation de la mort en la vie. La vision du monde kwagul est à l'image d'un monde zoo ou anthropomorphique doté d'une unique cavité appelée par les kwagul, la bouche. C'est par l'intermédiaire de celle-ci que les transformations s'opèrent. L'analyse des codes culinaires déployés dans les mythes et les rites dévoile que la mort et la Création sont exprimées par des métaphores orales. La mythologie explicite composée du paradigme mythique Baxbakwalanuxsiwae est analysée sur une période d'un siècle, confirmant certaines caractéristiques de l'évolution des mythes. Le mythe exprime une exogamie démesurée à laquelle s'oppose sa limite inférieure; le rapprochement trop étroit d'un frère et d'une soeur que les Bella Bella et les Kwagul illustrent dans la phase finale de leurs mythes et de leurs rites. La métaphore cannibalique est analysée sous l'angle de la parenté; elle circonscrit le champ de l'alliance acceptable par la culture. La femme est perçue alors comme le médiateur entre les humains et les ogres surnaturels. Evoquant le thème de la grande naissance, les différentes séquences du rituel hamatsa sont analysées chronologiquement. Au cours de son initiation, afin de surpasser sa "mort", l'initié devait manger la "mort". A la mort symbolique du novice correspond une naissance symbolique suivie d'une socialisation réelle. La comparaison mythe/rite permet finalement de conclure que la démarche rituelle ne répète pas systématiquement la démarche de la pensée mythique, mais au contraire l'inverse. Cette inversion est due à l'emploi du morcellement et de la répétition qui fait que le rite remonte le mythe à contresens.
Author Correction: An activity-regulated transcriptional program directly drives synaptogenesis
Creators: name: Herbst, Wendy A.
name: Xu, Bing
name: Reddy, Anay R.
name: Zhang, Wan
name: Medwig-Kinney, Taylor N.
name: Xiao, Yutong
name: Xiang, Yang Kevin
name: Shen, Kang
name: Yee, Callista
name: Matus, David Q.
name: Chen, Hongwen
name: Boyle, Alan P.
Publisher: name: Springer Nature
Year: 2025

description:
Correction to: "An activity-regulated transcriptional program directly drives synaptogenesis"
Accessible acid sites in hierarchical architectures
Creators: name: Enrica, Gianotti
name: Miletto Ivana
name: Geo, Paul
name: Marchese Leonardo
Publisher: name: Zenodo
Year: 2019
Subjects: hierarchical porous materials, synthesis, physico-chemical characterization

description: The synthetic procedures to produce hierarchical porous architectures and the physics-chemical characterization of the obtained materials is described.
LISONIY BIRLIKLARDA UMUMIYLIK VA XUSUSIYLIK MUNOSABATINING IFODALANISHI
Creators: name: Azimova Dilobarxon Berdiali qizi Tayanch doktorant, Qo'qon DPI
Publisher: name: Zenodo
Year: 2023

description: Har bir til hodisasi muayyan matnda alohida – alohida olib o‘rganiladi, izohlanadi va shu asosda umumlashtiriladi. Badiiy asarda tilga olingan detallar asarning umumiy ruhiga yoki davr ruhiga qay darajada mos kelishi aniqlanadi. Qahramon dunyoqarashi uning nutqida qay darajada aks etgan? Asar ishtirokchilarining dialoglari monologlari badiiylik talablariga javob beradimi? Umuman asardagi xususiy holatlar asarning butuniga aloqadormi, yo‘qmi kabi holatlar aniqlanadi. «Mavzu, janr, uslub va tilga xos umumiy belgilar hamda muallif individualligiga xos xususiy belgilarning matnda namoyon bo‘lishini izohlash» ham shu tamoyil talablaridan hisoblanadi. Turli qatlamga xos so‘zlarning badiiy matnda qo‘llanishi bilan bog‘liq tekshirishlar yoki qahramonlarning o‘zlari mansub bo‘lgan toifa

tilidan qay darajada iste’foda qilishini o‘rganish kabilarda xususiylikdan umumiylikka o‘tish qonuniyati hisobga olinadi.
A timing-based estimate of the spin of the black hole in MAXI J1820+070
Creators: name: Bhargava, Yash
name: Belloni, Tomaso
name: Bhattacharya, Dipankar
name: Motta, Sara
name: Ponti, Gabriele
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: MAXI J1820+070 (ASSASN-18ey) is a Black hole X-ray binary discovered in 2018. The brightness of the source triggered multi-wavelength campaigns of this source from different observatories. We analyse the Power Density Spectra obtained from NICER high cadence observations of the source in the hard state. We obtain the evolution of the characteristic frequencies by modelling the PDS. We interpret the characteristic frequencies of various PDS components (both QPOs and broad band noise components) as variability occurring at a particular radius, and explain them in the context of the Relativistic Precession Model. We estimate the dimensionless spin of the black hole at $0.799^{+0.016}_{-0.015}$ by fitting the Relativistic Precession Model.
description: 7 pages, 5 figures, Accepted for publication in MNRAS
Professional Boundaries in Transnational IT Workspaces
Creators: name: Ruiz Ben, Esther
Publisher: name: Cambio. Rivista sulle Trasformazioni Sociali
Year: 2019

description: In this article, I analyse the formation of professional boundaries in the dynamic of globalisation and the internationalisation of work concentrating on the question of how professional boundaries emerge in transnational workspaces constituted by heterogeneous actors from different institutional and socio-cultural backgrounds. Theoretically, I depart from Abbott’s notion of ‘linked ecologies’ and focus on three dimensions of professionalism (the linkages between tasks and organised action or professional jurisdictions, the mechanisms for legitimating work or control over work and the search for professional identity) as basic mechanisms of professional boundaries formation in transnational workspaces. Retrospectively, I show focusing on the case of IT project management how employers and practitioners combining organisational and occupational professionalism contribute to form professional boundaries in workspaces that emerge in globalisation processes. Based on the research results and comparing them with the current situation of transnational IT project management, I conclude that the processes of formation of professional boundaries in the IT sector are historically situated in the first decade of the Twenty-first century.
description: Cambio. Rivista sulle Trasformazioni Sociali, Vol 8 No 16 (2018): Varieties of Professionalism in a Globalising World: New Theoretical Perspectives and Analytical Approaches
Adjoint vector fields and differential operators on representation spaces
Creators: name: Panyushev, Dmitri I.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Representation Theory (math.RT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14L30; 16S32; 17B20; 22E47

description: Let $G$ be a semisimple algebraic group with Lie algebra $\g$. In 1979, J. Dixmier proved that any vector field annihilating all $G$-invariant polynomials on $\g$ lies in the $\bbk[\g]$-module generated by the "adjoint vector fields", i.e., vector fields $ς$ of the form $ς(y)(x)=[x,y]$, $x,y\in\g$. A substantial generalisation of Dixmier's theorem was found by Levasseur and Stafford. They explicitly described the centraliser of $\bbk[\g]^G$ in the algebra of differential operators on $\g$. On the level of vector fields, their result reduces to Dixmier's theorem. The purpose of this paper is to explore similar problems in the general context of affine algebraic groups and their rational representations.
description: 24 pages, to appear in Bull LMS
The development of a split-tail heliosphere and the role of non-ideal processes: a comparison of the BU and Moscow models
Creators: name: Kornbleuth, M.
name: Opher, M.
name: Baliukin, I.
name: Gkioulidou, M.
name: Richardson, J. D.
name: Zank, G. P.
name: Michael, A. T.
name: Toth, G.
name: Tenishev, V.
name: Izmodenov, V.
name: Alexashov, D.
name: Fuselier, S.
name: Drake, J. F.
name: Dialynas, K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Global models of the heliosphere are critical tools used in the interpretation of heliospheric observations. There are several three-dimensional magnetohydrodynamic (MHD) heliospheric models that rely on different strategies and assumptions. Until now only one paper has compared global heliosphere models, but without magnetic field effects. We compare the results of two different MHD models, the BU and Moscow models. Both models use identical boundary conditions to compare how different numerical approaches and physical assumptions contribute to the heliospheric solution. Based on the different numerical treatments of discontinuities, the BU model allows for the presence of magnetic reconnection, while the Moscow model does not. Both models predict collimation of the solar outflow in the heliosheath by the solar magnetic field and produce a split-tail where the solar magnetic field confines the charged solar particles into distinct north and south columns that become lobes. In the BU model, the ISM flows between the two lobes at large distances due to MHD instabilities and reconnection. Reconnection in the BU model at the port flank affects the draping of the interstellar magnetic field in the immediate vicinity of the heliopause. Different draping in the models cause different ISM pressures, yielding different heliosheath thicknesses and boundary locations, with the largest effects at high latitudes. The BU model heliosheath is 15% thinner and the heliopause is 7% more inwards at the north pole relative to the Moscow model. These differences in the two plasma solutions may manifest themselves in energetic neutral atom measurements of the heliosphere.
description: 2 tables, 12 figures, accepted to ApJ
Detection of long-lived staus and gravitinos at the ILC
Creators: name: Martyn, Hans-Ulrich
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A study is presented illustrating the excellent potential of future International Linear Collider (ILC) experiments to detect metastable staus $\stau$, measure precisely their mass and lifetime, and to determine the mass of the gravitino $\sG$ from the decay $\stau\toτ\sG$, thus providing direct access to the gravitational coupling, respectively Planck scale.
description: Talk given at LCWS/ILC 2007 and SUSY 2007. Submitted for the SUSY07 proceedings
Microwave grading of lumber
Creators: name: Leong, Ng Kan
Publisher: name: University of British Columbia
Year: 2010

description: Microwave measurements of the electrical properties of wood (Douglas fir) at various frequencies, moisture contents and grain orientations were made. Based on these measurements, a frequency of 35 GHz (nominal) was chosen for the development of a microwave apparatus for stress grading of lumber as it gave the best compromise between resolution and sensitivity. The design and implementation of a homodyne system incorporating a dual balanced mixer is described. The system is capable of measuring the co-polar, cross-polar and RF phase (of the co-polar) signals of a linearly polarized electromagnetic wave transmitted through wood. The performance of the system is tested by measuring samples of Douglas fir lumber boards which were later subjected to tests for strength (modulus of rupture). The results indicate excellent qualitative correlation between the microxtfave measurements and the strength of the lumber boards.
Internally-driven warps in disc galaxies
Creators: name: Sellwood, J. A.
name: Debattista, Victor P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Any perturbation to a disc galaxy that creates a misalignment between the planes of the inner and outer disc, will excite a slowly evolving bending wave in the outer disc. The torque from the stiff inner disc drives a retrograde, leading-spiral bending wave that grows in amplitude as it propagates outward over a period of several Gyr. This behaviour creates warps that obey the rules established from observations, and operates no matter what the original cause of the misalignment between the inner and outer disc. The part of the disc left behind by the outwardly propagating wave is brought into alignment with the inner disc. Here we confirm that mild warps in simulations of disc galaxies can be excited by shot noise in the halo, as was recently reported. We show that the quadrupole component of the noise creates disc distortions most effectively. Bending waves caused by shot noise in carefully constructed equilibrium simulations of isolated galaxies are far too mild to be observable, but perturbations from halo substructure and galaxy assembly must excite larger amplitude bending waves in real galaxies.
description: 8 pages, 10 figs, revised version submitted to MNRAS